CLEANING ROBOT

Info

Publication number: 20260248337
Type: Application
Filed: Mar 20, 2023
Publication Date: Aug 27, 2026
Inventors: Xing LI (Beijing), Yungen QIN (Beijing), Chang MI (Beijing)
Application Number: 18/853,746

Abstract

A cleaning robot, includes: a machine body, including an accommodating chamber; a cleaning system, provided on the machine body and comprising a cleaning head, where the cleaning head is located in the accommodating chamber; a collection system, provided on the machine body and including a collection part and a power part, where the collection part comprises an inlet and an outlet, the accommodating chamber is in communication with the collection part through the inlet, and the power part is in pneumatic communication with the collection part through the outlet; and a plugging assembly, provided on the machine body, where a position of at least a part of the plugging assembly is provided to be adjustable to close or open the inlet and the outlet.

Description

Description

CROSS-REFERENCE TO RELATED APPLICATION

This application is a U.S. national stage of an International Patent Application No. PCT/CN 2023/082524, and claims priority of Chinese Patent Application No. 202210368903.X, filed on Apr. 8, 2022, both of which are incorporated herein by reference in its entirety as a part of the present application.

TECHNICAL FIELD

The present disclosure relates to the field of smart home technologies, and in particular, relates to a cleaning robot.

BACKGROUND ART

In the related art, most of cleaning robots are sweeping robots, and when the cleaning robots perform cleaning tasks, cleaning heads of the cleaning robots are used to achieve effective cleaning of floor.

SUMMARY OF THE INVENTION

The present disclosure provides a cleaning robot to improve the use performance of the cleaning robot.

The present disclosure provides a cleaning robot. The cleaning robot includes:

- a machine body, including an accommodating chamber;
- a cleaning system, provided on the machine body and including a cleaning head, where the cleaning head is located in the accommodating chamber;
- a collection system, provided on the machine body and including a collection part and a power part, where the collection part includes an inlet and an outlet; the accommodating chamber is in communication with the collection part through the inlet, and the power part is in pneumatic communication with the collection part through the outlet; and
- a plugging assembly, provided on the machine body, where a position of at least a part of the plugging assembly is provided to be adjustable to close or open the inlet and the outlet of the collection part.

In some embodiments of the present disclosure, the plugging assembly includes:

- a connection rod;
- a first plugging member, provided on the connection rod; and
- a second plugging member, provided on the connection rod;
- where the connection rod is provided movably relative to the machine body, so that the first plugging member and the second plugging member close or release the inlet and the outlet of the collection part, respectively.

In some embodiments of the present disclosure, the plugging assembly further includes:

- a driving part, connected to the connection rod to drive the connection rod to rotate relative to the machine body, so that the first plugging member and the second plugging member synchronously close or release the inlet and the outlet of the collection part.

In some embodiments of the present disclosure, the plugging assembly further includes:

- an ejector rod, connected to the connection rod through the first plugging member or the second plugging member, where the driving part is connected to the ejector rod to drive the connection rod to rotate relative to the machine body through the ejector rod.

In some embodiments of the present disclosure, the plugging assembly further includes:

- an elastic member, sleeved on the connection rod, where an end of the elastic member abuts against the first plugging member or the second plugging member, and another end of the elastic member abuts against the machine body, so that the first plugging member or the second plugging member tightly presses the elastic member when the first plugging member and the second plugging member are driven by the ejector rod to release the inlet and the outlet of the collection part;
- where, the elastic member is able to drive the first plugging member and the second plugging member to close the inlet and the outlet of the collection part.

In some embodiments of the present disclosure, the elastic member is a spring.

In some embodiments of the present disclosure, the ejector rod penetrates through the collection part, and the plugging assembly further includes:

- a sealing member, located between the collection part and the ejector rod.

In some embodiments of the present disclosure, the connection rod, the first plugging member and the second plugging member are of an integral structure.

In some embodiments of the present disclosure, the cleaning head includes a wet cleaning head, and the cleaning system further includes:

- a liquid supply part, configured to feed a washing liquid to the wet cleaning head.

In some embodiments of the present disclosure, the liquid supply part and the collection part are stacked up and down.

In some embodiments of the present disclosure, the machine body includes a forward portion, the cleaning system is provided in the forward portion, and the forward portion is substantially of a rectangle shape.

In some embodiments of the present disclosure, the cleaning system further includes an auxiliary cleaning head, the machine body includes a forward portion, and the auxiliary cleaning head is provided at a corner position of the forward portion.

In some embodiments of the present disclosure, the cleaning robot further includes a driving system, the machine body further includes a backward portion, at least a part of the driving system is provided in the backward portion, and the driving system includes a first driving wheel module and a second driving wheel module provided along a transverse axis of the machine body; where the transverse axis is perpendicular to a movement direction of the cleaning robot, and a preset angle is formed between the cleaning head and the transverse axis.

In some embodiments of the present disclosure, the auxiliary cleaning head is provided on a side of the cleaning head tilted backwards.

In some embodiments of the present disclosure, the cleaning robot further includes: a control system, connected to the plugging assembly to control the plugging assembly to close or release the inlet and the outlet of the collection part.

BRIEF DESCRIPTION OF THE DRAWINGS

Various objects, features and advantages of the present disclosure will become more apparent by considering the following detailed descriptions of preferred embodiments of the present disclosure in combination with the accompanying drawings. The accompanying drawings are only exemplary illustrations of the present disclosure and are not necessarily drawn to scale. In the accompanying drawings, the same reference signs denote the same or similar parts. In the accompanying drawings:

FIG. 1 is a structural schematic diagram of a cleaning robot from a first viewing angle according to some embodiments of the present disclosure;

FIG. 2 is a structural schematic diagram of the cleaning robot from a second viewing angle according to some embodiments of the present disclosure;

FIG. 3 is a structural schematic diagram of the cleaning robot from a third viewing angle according to some embodiments of the present disclosure;

FIG. 4 is a structural schematic diagram of a liquid supply part of the cleaning robot according to some embodiments of the present disclosure;

FIG. 5 is a structural schematic diagram of a collection part of the cleaning robot according to some embodiments of the present disclosure;

FIG. 6 is a structural schematic diagram of a plugging assembly of the cleaning robot according to some embodiments of the present disclosure;

FIG. 7 is a structural schematic diagram of an inlet and an outlet of the collection part of the cleaning robot according to some embodiments of the present disclosure;

FIG. 8 is a structural schematic diagram of a mounting bracket of the cleaning robot from one viewing angle according to some embodiments of the present disclosure;

FIG. 9 is a structural schematic diagram of the mounting bracket of the cleaning robot from another viewing angle according to some embodiments of the present disclosure;

FIG. 10 is a structural schematic diagram of a scraper of the cleaning robot from one viewing angle according to some embodiments of the present disclosure;

FIG. 11 is a structural schematic diagram of the scraper of the cleaning robot from another viewing angle according to some embodiments of the present disclosure;

FIG. 12 is a structural schematic diagram of the collection part of the cleaning robot according to some embodiments of the present disclosure;

FIG. 13 is a structural schematic diagram of the plugging assembly of the cleaning robot according to some embodiments of the present disclosure;

FIG. 14 is a structural schematic diagram of the plugging assembly of the cleaning robot according to some embodiments of the present disclosure;

FIG. 15 is a schematic diagram of a partial structure of the cleaning robot from a viewing angle according to some embodiments of the present disclosure;

FIG. 16 is a schematic diagram of the partial structure of the cleaning robot from another viewing angle according to some embodiments of the present disclosure; and FIG. 17 is a structural schematic diagram of the liquid supply part and the collection part of the cleaning robot according to some embodiments of the present disclosure.

Reference numerals in the accompanying drawings: 10, Machine body; 11, mounting bracket; 111, liquid inlet; 112, liquid outlet; 113, accommodating chamber; 114, through hole; 12, forward portion; 13, backward portion; 20, cleaning system; 21, cleaning head; 22, liquid supply part; 221, water inlet; 23, auxiliary cleaning head; 231, wet auxiliary cleaning head; 232, main body part; 24, water pump; 30, driving system; 31, first driving wheel module; 32, second driving wheel module; 33, driven wheel; 40, collection system; 41, collection part; 411, inlet; 412, outlet; 413, drainage port; 414, main body; 415, extension part; 42, scraper; 421, water suction port; 43, power part; 50, plugging assembly; 51, connection rod; 52, first plugging member; 53, second plugging member; 54, driving part; 55, ejector rod; 56, elastic member; 57, sealing member; 60, detection system; 70, sensing system; 71, position determination device; 72, buffer; 80, control system; 90, energy system; and 100, human-machine interaction system.

DETAILED DESCRIPTION

Typical embodiments embodying features and advantages of the present disclosure will be described in detail in the following descriptions. It should be understood that the present disclosure may have various changes in terms of different embodiments, which do not depart from the scope of the present disclosure, and the descriptions and drawings therein are essentially intended for illustration instead of limiting the present disclosure.

The following descriptions of different example embodiments of the present disclosure are given with reference to the drawings, the drawings form a part of the present disclosure, and different exemplary structures, systems and steps that can implement multiple aspects of the present disclosure are shown exemplarily. It should be understood that other specific solutions of components, structures, exemplary apparatuses, systems and steps can be used, and structural and functional modifications can be made without departing from the scope of the present disclosure. Moreover, although the terms “above”, “between”, “within” and the like can be used in the description to describe different exemplary features and elements of the present disclosure, these terms are used herein only for convenience, for example, according to exemplary directions in the drawings. No content in the description should be understood as requiring specific three-dimensional directions of structures to fall within the scope of the present disclosure.

As shown in FIG. 1 to FIG. 17, a cleaning robot includes a machine body 10, a cleaning system 20, a driving system 30, a collection system 40, a plugging assembly 50, a detection system 60, a sensing system 70, a control system 80, an energy system 90, and a human-machine interaction system 100.

As shown in FIG. 1, the machine body 10 includes a forward portion 12 and a backward portion 13, and has an approximately circular shape (both the forward portion and the backward portion are circular), and may also have other shapes, including but not limited to an approximate D-shape with a square forward portion and a circular backward portion, and a rectangular or square shape with a square forward portion and a square backward portion.

As shown in FIG. 1, the sensing system 70 includes a position determination device 71 provided on the machine body 10, and sensing devices such as a collision sensor provided on a buffer 72 in the forward portion 12 of the machine body 10, a proximity sensor provided on the machine body 10, a cliff sensor provided at a lower part of the machine body, and a magnetometer, an accelerometer, a gyroscope, and an odometer provided in the machine body 10, which are configured to provide various position information and movement state information of the cleaning robot to the control system 80. The position determination device 71 includes, but is not limited to, a camera and a laser distance sensor (LDS).

As shown in FIG. 1, the forward portion 12 of the machine body 10 may bear the buffer 72. During cleaning, when the driving system 30 propels the cleaning robot to travel on the floor, the buffer 72 detects one or more events in a travelling path of the cleaning robot via the collision sensor provided thereon. The cleaning robot may control, according to the events, such as an obstacle and a wall, detected by the buffer 122, the driving system 30, so that the cleaning robot responds to the events, for example, moving away from the obstacle.

The control system 80 is provided on a main circuit board in the machine body 10, and includes a computing processor, such as a central processing unit or an application processor, which communicates with a non-temporary memory, such as a hard disk, a flash memory, and a random access memory. The application processor draws, by using a positioning algorithm (for example, simultaneous localization and mapping (SLAM)) according to obstacle information fed back by the laser distance sensor, a simultaneous map of the environment where the cleaning robot is located. The control system 80 comprehensively determines the current working state, the current position, and the current posture of the cleaning robot, such as crossing a threshold, crawling onto a carpet, being at a cliff, being stuck from above or below, having a full dust box or being picked up, or the like, in combination with distance information and speed information fed back by the sensing devices such as the sensor provided on the buffer 72, the cliff sensor, the magnetometer, the accelerometer, the gyroscope, and the odometer. The control system 80 may also give specific next action strategies for different situations, so that the cleaning robot has better sweeping performance and provides better user experience.

As shown in FIG. 2 and FIG. 3, the driving system 30 may control the machine body 10 to travel across the floor based on a driving command with distance and angle information (such as x, y and θ components). The driving system 30 may include a first driving wheel module 31 and a second driving wheel module 32. The first driving wheel module 31 and the second driving wheel module 32 are provided along a transverse axis defined by the machine body 10. In order that the cleaning robot can move on the floor more stably or possess higher movement capability, the cleaning robot may include one or more driven wheels 33, and the driven wheels include but are not limited to universal wheels. The driving wheel module includes travelling wheels, a driving motor, and a control circuit for controlling the driving motor. The driving wheel module may also be connected to a circuit for measuring a driving current and an odometer. The driving wheel module may be detachably connected onto the machine body 10, which may be dismounted, mounted and maintained conveniently. The driving wheel module may be provided with an offset drop suspension system, which is movably fastened, for example, rotatably attached, to the machine body 10 to receive spring biases that are biased downwards and away from the machine body 10. The spring biases allow the driving wheel module to maintain contact and traction with the floor with a certain floor attachment force, and meanwhile a cleaning element of the cleaning robot is also in contact with the floor with a certain pressure.

The machine body 10 defines the transverse axis and a longitudinal axis. The transverse axis and the longitudinal axis are perpendicular to each other, and may be understood as a transverse centerline and a longitudinal centerline of the machine body 10, respectively.

The energy system 90 includes a rechargeable battery, such as a nickel-hydrogen battery and a lithium battery. The rechargeable battery may be connected to a charging control circuit, a battery pack charging temperature detection circuit, and a battery undervoltage monitoring circuit, which are then connected to a single-chip microcomputer control circuit. The cleaning robot may be connected to a charging pile for charging via a charging electrode provided on the machine body, such as being provided on the side, the bottom or the top of the machine body.

The human-machine interaction system 100 may include buttons on a host panel for a user to select functions, and may further include a display screen and/or an indicator light and/or a speaker, which show the current state or function options of the cleaning robot to the user. The human-machine interaction system 100 also include a mobile phone client program. For a route navigation type automatic cleaning device, the mobile phone client may be used to show the user a map of the environment where the cleaning robot is located, and the location of the cleaning robot, thus providing the user with richer and more user-friendly function items.

In the cleaning robot according to the embodiments of the present disclosure, the cleaning system 20 is provided on the machine body 10, and includes a cleaning head 21. There is a preset angle formed between the transverse axis of the machine body 10 and the cleaning head 21, so that it is possible to reduce the probability that the cleaning head 21 gets stuck by floor joints when the cleaning robot passes through floor environments such as tile joints in an advancing process, thus improving the cleaning efficiency and the use performance of the cleaning robot. The preset angle between the transverse axis and the cleaning head 21 may be an acute angle, and may range from 5 degrees to 70 degrees.

In the embodiments of the present disclosure, the cleaning system 20 may be a dry cleaning system. The dry cleaning system may include the cleaning head 21, a dust box, a fan, an air outlet, etc. In the embodiments of the present disclosure, the cleaning head 21 may be a roller brush rotatable about a shaft parallel to the floor. The roller brush with certain interference with the floor sweeps up garbage on the floor, and rolls it up to the front of a dust suction inlet between the roller brush and the dust box. Then the garbage is sucked into the dust box by air with a suction force, which is generated by the fan and passes through the dust box. The dust removal capacity of the cleaning robot may be characterized by the dust pickup (DPU) efficiency for the garbage. DUP is affected by the structure and the material of the roller brush, the utilization rate of air in an air passage formed by the dust suction inlet, the dust box, the fan, the air outlet, and connection parts among them, as well as the type and the power of the fan, which is a complex problem of system design.

In the embodiments of the present disclosure, the cleaning system 20 may be a wet cleaning system. The cleaning head 21 includes a wet cleaning head. As shown in FIG. 4, the cleaning system 20 further includes a liquid supply part 22. The liquid supply part 22 feeds a washing liquid into the wet cleaning head. The cleaning head 21 may be provided below the liquid supply part 22. The cleaning liquid in the liquid supply part 22 is delivered to the cleaning head 21 through a water delivery mechanism, so that the cleaning head 21 performs wet cleaning on a surface to be cleaned. In other embodiments of the present disclosure, the cleaning liquid in the liquid supply part 22 may also be directly sprayed onto the surface to be cleaned, and cleaning of a flat surface is achieved through evenly applying the cleaning liquid by the cleaning head 21.

In the embodiments of the present disclosure, the cleaning head 21 may be provided at the bottom of the machine body 10. For example, the cleaning head 21 may be a cleaning pad provided parallel to the surface to be cleaned. In this embodiment, the cleaning head 21 is configured to clean the surface to be cleaned. The driving system 30 is configured to drive the cleaning head 21 to basically perform reciprocating motion along a target surface. The target surface is a part of the surface to be cleaned. The cleaning head 21 performs reciprocating motion along the surface to be cleaned. A cleaning cloth or a cleaning plate is provided on a surface of a contact surface between the cleaning head 21 and the surface to be cleaned, and high-frequency friction relative to the surface to be cleaned is generated through reciprocating motion to remove stains on the surface to be cleaned.

The higher the friction frequency is, the larger the number of frictions per unit time is. The high-frequency reciprocating motion, also known as reciprocating vibration, has a cleaning capability much higher than that of ordinary reciprocating motion, such as rotational friction cleaning.

Optionally, the friction frequency is approximate to the frequency of sound waves, and the cleaning effect may be much higher than that of rotational friction cleaning with dozens of revolutions per minute. On the other hand, tufts on the surface of the cleaning head 21 may spread more neatly in the same direction under shaking of high-frequency vibration, such that the overall cleaning effect is more uniform, rather than that under the condition of low-frequency rotation, only a downward pressure is applied to increase the friction force to improve the cleaning effect. The downward pressure alone may not enable the tufts to spread approximately in the same direction. Therefore, in terms of effect, water marks on the surface to be cleaned which was cleaned through high-frequency vibration are more uniform without chaotic water stains being left. In other embodiments of the present disclosure, the cleaning head 21 may also be of a strip-shaped structure, etc. In the embodiments of the present disclosure, the cleaning head 21 may be a roller brush rotatable about an axis parallel to the surface to be cleaned, as shown in FIG. 16. The machine body 10 includes a mounting bracket 11. The cleaning head 21 is provided in the mounting bracket 11. The mounting bracket 11 is provided with a liquid supply channel. The liquid supply part 22 feeds the washing liquid into the wet cleaning head through the liquid supply channel.

The liquid supply channel may be constituted by a cavity formed in the mounting bracket 11; for example, a part of the mounting bracket 11 is provided to be hollow, so as to form the liquid supply channel for circulating the washing liquid. The liquid supply channel may be formed by a pipe body, so as to feed the washing liquid from the liquid supply part 22 to the wet cleaning head, thus ensuring that the cleaning head 21 effectively cleans the surface to be cleaned.

In the embodiments of the present disclosure, as shown in FIG. 8 and FIG. 9, the liquid supply channel includes a liquid inlet 111 and a liquid outlet 112. The liquid inlet 111 is communicated with the liquid supply part 22. The liquid outlet 112 is configured to feed the washing liquid into the cleaning head 21.

In the embodiments of the present disclosure, as shown in FIG. 8 and FIG. 9, the mounting bracket 11 is provided with the liquid inlet 111 and the liquid outlet 112. An end of the liquid inlet 111 is provided on an outer surface of the mounting bracket 11. The liquid outlet 112 is located on an inner surface of the mounting bracket 11. The main body portion of the liquid supply channel may be provided between the liquid inlet 111 and the liquid outlet 112, and the main body portion may be communicated with a plurality of liquid outlets 112 at the same time, so that the liquid outlets 112 are configured to feed the washing liquid into the cleaning head 21. In the embodiments of the present disclosure, an accommodating chamber 113 is formed in the mounting bracket 11. The liquid outlet 112 is located on a chamber wall of the accommodating chamber 113. The liquid outlet 112 may be arranged at the top or on a side of the accommodating chamber 113, so as to facilitate reliably feeding the washing liquid discharged from the liquid outlet 112 into the cleaning head 21.

In the embodiments of the present disclosure, there may be a plurality of liquid outlets 112, and the plurality of liquid outlets 112 may be provided at intervals along a direction parallel to the cleaning head 21, so as to ensure that the washing liquid can be uniformly fed to various positions of the wet cleaning head, thus ensuring that the wet cleaning head reliably cleans the surface to be cleaned.

The liquid supply channel may have one liquid inlet 111, and the one liquid inlet 111 corresponds to all liquid outlets 112.

As an alternative embodiment of the present disclosure, the liquid supply channel may have at least two liquid inlets 111, and each of the liquid inlets 111 may respectively correspond to a plurality of liquid outlets 112, so as to reliably feed the washing liquid to the wet cleaning head. The liquid inlet 111 may be formed by a columnar structure, so as to be connected to a pipe-shaped structure which feeds the washing liquid. The liquid outlet 112 may be a rectangular port, a circular port or of other polygonal structure, which is not limited here. The plurality of liquid outlets 112 is provided sequentially along the direction parallel to the cleaning head 21.

In the embodiments of the present disclosure, as shown in FIG. 5 and FIG. 6, the collection system 40 is provided on the machine body 10, and includes a collection part 41. The collection part 41 collects residues on the cleaning head 21 and/or the surface to be cleaned, so that the surface to be cleaned can be effectively cleaned, thus ensuring the cleanliness of the surface to be cleaned.

During movement of the cleaning robot, the cleaning of the surface to be cleaned is achieved through the rotation of the cleaning head 21. In this process, the residues on the surface to be cleaned may be adsorbed onto the cleaning head 21, and the collection part 41 may collect these residues to ensure the cleanliness of the cleaning head 21. In addition, the collection part 41 may also collect the residues on the surface to be cleaned, and thus cooperates with the cleaning head 21 to achieve reliable cleaning of the surface to be cleaned. The residues may be water, debris, etc., which is not limited here.

In the embodiments of the present disclosure, as shown in FIG. 3, the collection system 42 further includes a scraper 42. The scraper 42 is in contact with the cleaning head 21, and removes the residues from the cleaning head 21 by interfering with the cleaning head 21, so that the residues are collected by the collection part 41. Thus, the cleanliness of the cleaning head 21 is ensured, so as to ensure that the surface to be cleaned is effectively cleaned.

Specifically, the scraper 42 may be of a plate-like structure, and the plate-like structure interferes with the cleaning head 21. The plate-like structure may remove the residues from the cleaning head 21 during rotation of the cleaning head 21, so that the residues are collected by the collection part 41, thus ensuring that the residues adsorbed from the surface to be cleaned can be collected by the collection part 41 in time. The scraper 42 may be provided on the machine body 10. The scraper 42 is detachably provided on the machine body 10.

In the embodiments of the present disclosure, the scraper 42 is parallel to the cleaning head 21, so that the scraper 42 can remove the residues from the cleaning head 21 reliably and the structure may be mounted conveniently.

Specifically, the length of the scraper 42 may be equal to the length of the cleaning head 21. On the basis of ensuring that the scraper 42 can completely interfere with the cleaning head 21, it may be avoided that the scraper 42 occupies the space in the length direction, thus ensuring the compactness of the structure.

As an alternative embodiment of the present disclosure, the transverse axis of the machine body 10 is parallel to the cleaning head 21, and parallel to the scraper 42.

As an alternative embodiment of the present disclosure, as shown in FIG. 10 and FIG. 11, the scraper 42 is provided with a water suction port 421, and the water suction port 421 is communicated with the collection part 41, so that the sewage is reliably collected into the collection part 41 through the water suction port 421 by the collection system 40.

Specifically, the water suction port 421 may face towards the cleaning head 21. After the sewage on the cleaning head 21 is scraped off by the scraper 42, the sewage may flow along the scraper 42 and flow towards the water suction port 421, so that the sewage may be sucked into the collection part 41 through the water suction port 421 by the collection system 40.

As an alternative embodiment of the present disclosure, the water suction port 421 may be provided on a side of the scraper 42 away from the cleaning head 21. A part of the scraper 42 may be used to gather the sewage together, and the water suction port 421 may suck the gathered sewage into the collection part 41.

In the embodiments of the present disclosure, as shown in FIG. 7, the collection system 40 further includes a power part 43 in pneumatic communication with the collection part 41 to collect the residues to the collection part 41. A negative pressure may be generated between the power part 43 and the collection part 41, so that the residues on the surface to be cleaned and the residues on the cleaning head 21 may be sucked into the collection part 41. Specifically, the negative pressure generated between the power part 43 and the collection part 41 may suck the sewage into the collection part 41 through the water suction port 421. The power part 43 may be a fan.

In the embodiments of the present disclosure, as shown in FIG. 9, the accommodating chamber 113 is formed in the mounting bracket 11. The cleaning head 21 is located in the accommodating chamber 113. The collection part 41 is communicated with the accommodating chamber 113, so that the residues enter the collection part 41 after passing through the accommodating chamber 113.

Specifically, the mounting bracket 11 is provided with a through hole 114, and the through hole 114 is communicated with the collection part 41 and the accommodating chamber 113. The residues scraped off from the cleaning head 21 by the scraper 42 are located in the accommodating chamber 113 of the mounting bracket 11, and the negative pressure generated between the power part 43 and the collection part 41 may suck the residues in the accommodating chamber 113 into the collection part 41 via the through hole 114. As an alternative embodiment of the present disclosure, the accommodating chamber 113 of the mounting bracket 11 may form a relatively sealed space with the surface to be cleaned. Thus, the negative pressure generated between the power part 43 and the collection part 41 may suck the residues on the surface to be cleaned into the collection part 41 via the through hole 114.

In the embodiments of the present disclosure, as shown in FIG. 7, the collection part 41 includes an inlet 411 and an outlet 412. The inlet 411 may be communicated with the accommodating chamber 113. Furthermore, the inlet 411 may be communicated with the through hole 114, and the outlet 412 may be communicated with the power part 43, so that the power part 43 provides power through the outlet 412 of the collection part 41 to suck the residues into the inlet 411 of the collection part 41 via the through hole 114 of the accommodating chamber 113, and thus, the residues enter the collection part 41. Among them, when an airflow flows in the collection part 41, the sewage, debris, etc., carried in the airflow remain in the collection part 41 under the action of gravity. Therefore, when the airflow has a relatively long flow path in the collection part 41, the sewage, debris, etc., may be effectively separated from the airflow.

In the embodiments of the present disclosure, as shown in FIG. 12, the inlet 411 and the outlet 412 of the collection part 41 may be provided on the same side of the collection part 41. For example, the inlet 411 and the outlet 412 of the collection part 41 are both provided on a front side of the collection part 41. Such an arrangement can effectively extend the flow path of the airflow in the collection part 41, so that sewage, debris, etc., can be separated from the airflow more effectively.

In the embodiments of the present disclosure, as shown in FIG. 5 and FIG. 6, the plugging assembly 50 of the cleaning robot is provided on the machine body 10. A position of at least a part of the plugging assembly 50 is provided to be adjustable so as to close or open the inlet 411 and the outlet 412 of the collection part 41, thus avoiding that the debris in the collection part 41 is poured out from the inlet 411 or enters the power part 43 from the outlet 412.

Specifically, the plugging assembly 50 may close the inlet 411 and the outlet 412 of the collection part 41 when the cleaning robot is not in operation, and thus, the problem that the residues are poured out incidentally due to manual movement of the cleaning robot can be avoided. When the cleaning robot starts to operate, the plugging assembly 50 may open the inlet 411 and the outlet 412 of the collection part 41, so that the residues may be sucked into the collection part 41 via the inlet 411.

In the embodiments of the present disclosure, the plugging assembly 50 may be controlled by an independent motor, and the control of closing the inlet 411 and the outlet 412 of the collection part 41 may be achieved at any time; for example, closing be achieved when the cleaning robot is not in operation. For example, the motor for the plugging assembly 50 may be electrically connected to the control system 80 of the cleaning robot to control the plugging assembly 50 according to the movement state of the cleaning robot fed back by the control system 80. For example, when the control system 80 controls the cleaning robot to stop operation, it may control the plugging assembly 50 to close the inlet 411 and the outlet 412 of the collection part 41.

Alternatively, when the control system 80 detects that the cleaning robot is in a tilted state, it may control the plugging assembly 50 to close the inlet 411 and the outlet 412 of the collection part 41. Alternatively, when the control system 80 detects that the cleaning robot is in an idle state for a long period of time, for example, the cleaning robot is stuck in a fixed position during cleaning and thus cannot advance, it may control the plugging assembly 50 to close the inlet 411 and the outlet 412 of the collection part 41 at this time. Alternatively, when the control system 80 detects that the garbage in the collection part 41 reaches a certain height, it may control the plugging assembly 50 to close the inlet 411 and the outlet 412 of the collection part 41.

In addition, the user may control the plugging assembly 50 by using an App to satisfy use requirements, and may flexibly control the closing of the inlet 411 and the outlet 412 of the collection part 41.

In the embodiments of the present disclosure, as shown in FIG. 6 and FIG. 13, the plugging assembly 50 includes a connection rod 51, a first plugging member 52 provided on the connection rod 51, and a second plugging member 53 provided on the connection rod 51, where the connection rod 51 is provided movably relative to the machine body 10, so that the first plugging member 52 and the second plugging member 53 close or open the inlet 411 and the outlet 412, respectively. That is, the first plugging member 52 and the second plugging member 53 may close or open the inlet 411 and the outlet 412 synchronously, so as to improve the operating performance of the cleaning robot and ensure that the residues are sucked into the collection part 41 in time.

In the embodiments of the present disclosure, as shown in FIG. 6 and FIG. 13, the plugging assembly 50 may include a driving part 54. The driving part 54 may be a motor. The driving part 54 is in driving connection to the connection rod 51, so as to drive the connection rod 51 to rotate, and thus drive the first plugging member 52 and the second plugging member 53 to rotate to close or open the inlet 411 and the outlet 412.

As shown in FIG. 13, the first plugging member 52 and the second plugging member 53 are provided on the connection rod 51 at an interval, and located in the middle of the connection rod 51. An end of the connection rod 51 is connected to the driving part 54, the other end of the connection rod 51 is provided to extend beyond the second plugging member 53, and the first plugging member 52 is provided between the driving part 54 and the second plugging member 53. The first plugging member 52 and the second plugging member 53 are provided at positions of the connection rod 51 close to two opposite ends of the connection rod 51, respectively. The first plugging member 52 and the second plugging member 53 are detachably provided on the connection rod 51, or both the first plugging member 52 and the second plugging member 53 are integrally formed on the connection rod 51.

As an alternative embodiment of the present disclosure, the driving part 54 may be a cylinder, an oil cylinder or a telescopic motor. The driving part 54 may be connected to the connection rod 51, and perform telescopic motion through a telescopic link of the driving part 54; that is, the connection rod 51 may perform telescopic motion. The connection rod 51 may move forwards and backwards. Thus, the first plugging member 52 and the second plugging member 53 may move forward and backward, that is, moving along a direction parallel to a plane where the inlet 411 and the outlet 412 of the collection part 41 are provided, in order to close or open the inlet and 411 and the outlet 412 of the collection part 41.

As an alternative embodiment of the present disclosure, the driving part 54 may be a cylinder, an oil cylinder or a telescopic motor, and may be connected to the connection rod 51. The driving part 54 performs telescopic movement through a telescopic link thereof, that is, the connection rod 51 may perform telescopic motion. The connection rod 51 may move upwards and downwards. Thus, the first plugging member 52 and the second plugging member 53 may move upwards and downwards, that is, moving along a direction perpendicular to a plane where the inlet 411 and the outlet 412 of the collection part 41 are located, so as to close or open the inlet and 411 and the outlet 412 of the collection part 41.

As an alternative embodiment of the present disclosure, the first plugging member 52 and the second plugging member 53 of the plugging assembly 50 may be independently provided on a first driving part and a second driving part. The first driving part and the second driving part drive the first plugging member 52 and the second plugging member 53 respectively to move, so as to close or open the inlet 411 and the outlet 412. The first driving part and the second driving part may operate synchronously, so that the first plugging member 52 and the second plugging member 53 operate synchronously, so as to synchronously close or open the inlet 411 and the outlet 412. Each of the first driving part and the second driving part may be a motor, a cylinder, an oil cylinder or other power mechanism.

As an alternative embodiment of the present disclosure, as shown in FIG. 14, the plugging assembly 50 may include a connection rod 51, a first plugging member 52, a second plugging member 53, a driving part 54, and an ejector rod 55. The first plugging member 52 and the second plugging member 53 are connected onto the connection rod 51. The ejector rod 55 may be connected to the first plugging member 52. The driving part 54 is in driving connection to the ejector rod 55, so that the driving part 54 may drive the ejector rod 55 to move upwards and downwards. In this way, the first plugging member 52 and the second plugging member 53 may move upwards and downwards. Alternatively, the connection rod 51 drives the first plugging member 52 and the second plugging member 53 to rotate, so as to synchronously close or open the inlet 411 and the outlet 412.

Alternatively, the plugging assembly 50 may further include an elastic member 56. After the driving part 54 releases power, the elastic member 56 may drive the ejector rod 55 to return to its original position, so that the first plugging member 52 and the second plugging member 53 move from a position where the inlet 411 and the outlet 412 are opened to a position where the inlet 411 and the outlet 412 are closed. The elastic member 56 may be a spring. For example, the spring may be sleeved on the connection rod 51. An end of the spring abuts against the first plugging member 52, and the other end of the spring may be supported on other components of the cleaning robot. For example, the other end of the spring may abut against the machine body 10, so that the spring may be pressed tightly when the ejector rod 55 moves upwards, and after the ejector rod 55 loses power, the spring returns to its original position. In this way, the first plugging member 52 and the second plugging member 53 are driven to move from a position where the inlet 411 and the outlet 412 are opened to a position where the inlet 411 and the outlet 412 are closed. There may be one spring, and the spring may be sleeved on an end of the connection rod 51. At this time, the other end of the connection rod 51 may be passively rotated. For example, the spring may abut against the first plugging member 52 or the second plugging member 53. There may be at least two springs. The two springs are provided at two ends of the connection rod 51, respectively, and may abut against the first plugging member 52 and the second plugging member 53, respectively.

When the driving part 54 drives the ejector rod 55 to move upwards, the connection rod 51 may rotate along a first direction, so that the first plugging member 52 and the second plugging member 53 open the inlet 411 and the outlet 412. At this time, the elastic member 56 is pressed tightly. After the driving part 54 releases the power or the driving part 54 operates reversely, for example, the ejector rod 55 moves upwards when the motor rotates forwards, and the driving part 54 may not be fixedly connected to the ejector rod 55 when the motor rotates reversely, the connection rod 51 is driven to rotate along a second direction by a driving force generated when the elastic member 56 restores to its original state, so that the ejector rod 55 is pressed to move downwards. In this way, the first plugging member 52 and the second plugging member 53 may plug the inlet 411 and the outlet 412. The driving part 54 may include a cam mechanism, through which the ejector rod 55 is driven to move upwards. At this time, the ejector rod 55 may be in contact with the cam mechanism, but not fixed. Alternatively, the driving part 54 may include an electric push rod, and the electric push rod may only be in insertable connection to the ejector rod 55, but not form an axial fixation. In some embodiments, it is not excluded that the driving part 54 may be fixedly connected to the connection rod 51, and at this time, the elastic member 56 may be cancelled. The driving part 54 drives the ejector rod 55 to move upwards. The driving part 54 may include a cam mechanism, a gear mechanism, etc., as long as a rectilinear movement may be achieved to push the ejector rod 55 to perform rectilinear movement.

In the embodiments of the present disclosure, as shown in FIG. 14, the plugging assembly 50 may further include a sealing member 57, and the sealing member 57 may be provided on the collection part 41. That is, the collection part 41 may be provided with a through hole. The ejector rod 55 may pass through the through hole and then is connected to the driving part 54. The sealing member 57 is configured to plug a gap between a hole wall of the through hole and the ejector rod 55, so as to avoid the sewage flowing out of the collection part 41. The ejector rod 55 may move upwards and downwards inside the sealing member 57. The sealing member 57 may be a sealing ring.

The collection part 41 may include at least two sub-chambers, a first sub-chamber is used for storing sewage, and a second sub-chamber is an empty chamber in a normal state. Only after the water level in the first sub-chamber reaches a certain value, the sewage may flow into the second sub-chamber. The ejector rod 55 penetrates through the second sub-chamber. Therefore, in the normal state, the problem of liquid leakage will not occur in the second sub-chamber, and the second sub-chamber can be effectively prevented from liquid leakage through the arrangement of the sealing member 57 in the case that there is liquid in the second sub-chamber.

In the embodiments of the present disclosure, when the collection part 41 is mounted in the complete machine, the ejector rod 55 may support and open the first plugging member 52 and the second plugging member 53. When the collection part 41 is taken out, the first plugging member 52 and the second plugging member 53 lose the support from the ejector rod 55, and are closed under the action of a spring force.

When it is detected, through the sensor, that the user turns over the cleaning robot or tilts the cleaning robot to a side, a program controls the ejector rod 55 to move, so that the ejector rod 55 cannot support the first plugging member 52 and the second plugging member 53, and under the action of the spring force, the first plugging member 52 and the second plugging member 53 are closed.

In the embodiments of the present disclosure, as shown in FIG. 1 and FIG. 2, the cleaning system 20 may be provided in the forward portion 12 of the machine body 10, and at least a part of the driving system 30 may be provided in the backward portion 13 of the machine body 10. For example, the driven wheel 33 of the driving system 30 may be provided at an edge position of the backward portion 13. The forward portion 12 may be substantially of a rectangle shape, and the backward portion 13 may be substantially of a semi-circular shape.

In the embodiments of the present disclosure, as shown in FIG. 2 and FIG. 3, the cleaning system 20 further includes an auxiliary cleaning head 23, and the auxiliary cleaning head 23 is provided on the machine body 10. With the auxiliary cleaning head 23, the cleaning robot can better clean wall edges, wall corners and other areas, thus improving the cleaning effect of the cleaning system 20.

In the embodiments of the present disclosure, as shown in FIG. 1 and FIG. 2, the auxiliary cleaning head 23 is provided at a corner position of the machine body 10, and a part of the auxiliary cleaning head 23 is provided to extend beyond the machine body 10. The part of the auxiliary cleaning head 23 extending beyond the machine body 10 is less than the part of the auxiliary cleaning head 23 provided below the machine body 10, so that on the basis of ensuring the cleaning range of the auxiliary cleaning head 23, the auxiliary cleaning head 23 is prevented from excessively increasing the occupied area of the cleaning robot.

The machine body 10 includes the forward portion 12 and the backward portion 13. The forward portion 12 is substantially a rectangular body. That is, in the case of ignoring fabrication errors, installation errors, etc., a circumferential outer surface of the rectangular body may include corner areas with rounded transitions. The rectangular body here is only sued to emphasizes a general structure of the forward portion 12. The auxiliary cleaning head 23 is provided at a corner position of the forward portion 12.

In the embodiments of the present disclosure, as shown in FIG. 1 and FIG. 2, the auxiliary cleaning head 23 is provided at a position of the machine body 10 close to the forward portion 12, and a part of the auxiliary cleaning head 23 extends beyond the buffer 72. Even if the cleaning robot is blocked by an obstacle in front, the auxiliary cleaning head 23 can also clean the gap and other parts in front, thus improving the cleaning capability of the cleaning robot.

In the embodiments of the present disclosure, a preset angle is formed between the transverse axis of the machine body 10 and the cleaning head 21. That is, the cleaning head 21 is provided obliquely. The auxiliary cleaning head 23 is provided on a side of the cleaning head 21 which is tilted backwards, so that the area of the auxiliary cleaning head 23 may be increased. That is, it is possible to make the area of the auxiliary cleaning head 23 relatively larger without excessively increasing the part of the auxiliary cleaning head 23 extending beyond the machine body 10, thus ensuring that the cleaning system 20 has an enough cleaning area. The outer edge of the auxiliary cleaning head 23 is substantially circular. The auxiliary cleaning head 23 is provided on the side of the cleaning head 21 tilted backwards, so that the auxiliary cleaning head 23 has a relatively larger cleaning area, and a part of the auxiliary cleaning head 23 overlaps with the cleaning head 21.

In the embodiments of the present disclosure, a part of the auxiliary cleaning head 23 overlaps with the cleaning head 21. In this way, the problem of missing cleaning between the auxiliary cleaning head 23 and the cleaning head 21 can be avoided on the basis of ensuring that a combination of the auxiliary cleaning head 23 and the cleaning head 21 can increase the cleaning area, thus improving the cleaning effect of the cleaning system 20.

In the embodiments of the present disclosure, the outer edge of the auxiliary cleaning head 23 extends beyond the outer edge of the machine body 10. That is, the auxiliary cleaning head 23 can clean positions outside the machine body 10, such as wall edges, wall corners, and other areas, thus increasing the cleaning area of the cleaning system 20 and improving the cleaning performance of the cleaning robot.

In the embodiments of the present disclosure, the auxiliary cleaning head 23 includes a wet auxiliary cleaning head 231. The liquid supply part 22 feeds the washing liquid into the wet auxiliary cleaning head 231. The auxiliary cleaning head 23 may be provided below the liquid supply part 22. The cleaning liquid in the liquid supply part 22 is delivered to the auxiliary cleaning head 23 through a water delivery mechanism, so that the auxiliary cleaning head 23 performs wet cleaning on the surface to be cleaned.

Specifically, the cleaning system 20 may further include an auxiliary liquid supply channel, through which the liquid supply part 22 feeds the washing liquid into the wet auxiliary cleaning head 231. The auxiliary liquid supply channel may be a space formed in the auxiliary cleaning head 23. The washing liquid is fed into the wet auxiliary cleaning head 231 through the liquid outlet. The auxiliary liquid supply channel may be a liquid feed pipe to feed the washing liquid to the wet auxiliary cleaning head 231.

In the embodiments of the present disclosure, as shown in FIG. 15 and FIG. 16, the cleaning system 20 further includes a water pump 24. The water pump 24 is communicated with the liquid supply part 22, so as to feed the washing liquid from the liquid supply part 22 into at least one of the cleaning head 21 and the auxiliary cleaning head 23. The water pump 24 may feed the washing liquid from the liquid supply part 22 to the cleaning head 21 through the liquid supply channel, and/or feed the washing liquid from the liquid supply part 22 to the auxiliary cleaning head 23 through the auxiliary liquid supply channel.

Specifically, there may be one water pump 24, and the one water pump 24 is communicated with both the liquid supply channel and the auxiliary liquid supply channel. There may be two water pumps 24, and the two water pumps 24 are communicated with both the liquid supply channel and the auxiliary liquid supply channel, respectively. The water pump 24 may be a gear pump, a vane pump, a piston pump, a peristaltic pump, or the like. The power/flow of the water pump 24 is adjustable. The water pump 24 may cooperate with a valve and other devices to control the supply of the washing liquid from the liquid supply part 22 to the cleaning head 21 and the auxiliary cleaning head 23.

In the embodiments of the present disclosure, the cleaning head 21 is rotatably provided around a first axis, and the auxiliary cleaning head 23 is rotatably provided around a second axis. A certain angle is formed between the first axis and the second axis. The cleaning head 21 may be a roller brush for mopping. The auxiliary cleaning head 23 may include cloth or wool. The washing liquid in the liquid supply part 22 is evenly distributed on the auxiliary cleaning head 23 through the penetration and centrifugal force on the cloth or wool. The auxiliary cleaning head 23 may float to a certain extent in the up and down directions.

In the embodiments of the present disclosure, the first axis is perpendicular to the second axis. That is, the first axis may be parallel to the surface to be cleaned, and the second axis may be perpendicular to the surface to be cleaned.

As an alternative embodiment of the present disclosure, the auxiliary cleaning head 23 may be a side brush. The rotation axis of the side brush is at a certain angle relative to the floor, so as to move the residues on the surface to be cleaned into the cleaning area of the cleaning head 21.

As an alternative embodiment of the present disclosure, the auxiliary cleaning head 23 may be in the form of a disc brush, a roller brush, or the like.

As shown in FIG. 4, the auxiliary cleaning head 23 may further include a main body part 232. The wet auxiliary cleaning head 231 is connected onto the main body part 232. The main body part 232 is provided on the machine body 10. The main body part 232 may include a driving motor. The driving motor may drive the wet auxiliary cleaning head 231 to rotate. The wet auxiliary cleaning head 231 may include cloth or wool. The main body part 232 may include a support structure. The support structure may be a tapered soft rubber supporter, so as to transfer a relatively greater torque, and allow the wet auxiliary cleaning head 231 to float to a certain extent in the up and down directions, thus improving the cleaning capability.

In the embodiments of the present disclosure, the liquid supply part 22 and the collection part 41 are stacked with each other, so that the space utilization ratio of the cleaning robot may be increased, and the cleaning robot can be prevented from being too large.

In the embodiments of the present disclosure, as shown in FIG. 15 and FIG. 16, the liquid supply part 22 is located above the collection part 41. The liquid supply part 22 may be a clean water tank. The collection part 41 may be a sewage tank. The clean water tank is located above, so that it can facilitate the supply of the liquid to the cleaning head 21 and the auxiliary cleaning head 23. The sewage tank is located below, so that it can facilitate the collection of the residues.

The clean water tank and the sewage tank may be stacked up and down. That is, as shown in FIG. 15 and FIG. 16, the liquid supply part 22 and the collection part 41 are stacked up and down. The clean water tank may be provided above the sewage tank. The clean water tank is located above, so that it can facilitate the supply of the liquid to the cleaning head 21 and the auxiliary cleaning head 23. The sewage tank is located below, so that it can facilitate the collection of the residues. Moreover, the clean water tank and the sewage tank is stacked up and down, so that the gravity center of the cleaning robot may not change too much in the horizontal direction, thus ensuring the stability of the cleaning robot and avoiding significant shaking during cleaning.

The collection part 41 may be located in the middle position of the machine body 10. That is, the collection part 41 may be located on a side of the cleaning system 20 away from the buffer 72. In this way, the gravity center of the cleaning robot may not change too much when the amount of water in the collection part 41 changes. Thus, it is ensured that the cleaning robot can stably clean the surface to be cleaned, and the gravity center is stable during use.

In the embodiments of the present disclosure, as shown in FIG. 17, the liquid supply part 22 and the collection part 41 are stacked up and down. The liquid supply part 22 is provided with a water inlet 221. The collection part 41 is provided with a drainage port 413. The water inlet 221 in the liquid supply part 22 is configured to inject clean water into the liquid supply part 22. The drainage port 413 in the collection part 41 is configured to discharge sewage in the collection part 41 out of the collection part 41. The water inlet 221 may be provided on a side of the liquid supply part 22. The drainage port 413 may be provided on a side of the collection part 41. For example, two interfaces may be provided on the bottom or the side of the machine body 10, and the two interfaces may be configured to be connected to a clean water injection structure and a sewage discharge structure. When the cleaning robot is in normal use, the two interfaces need to be in a plugged state, so as to avoid water leakage. Alternatively, the water inlet 221 and the drainage port 413 may be plugged with seals. During water injection or drainage, the liquid supply part 22 and the collection part 41 may be simultaneously removed from the machine body 10. The liquid supply part 22 is connected to the collection part 41, so that the liquid supply part 22 and the collection part 41 may be removed from the machine body 10 synchronously.

The liquid supply part 22 and the collection part 41 may be removed from the machine body 10, so as to achieve liquid injection of the liquid supply part 22 and sewage discharge of the collection part 41. As shown in FIG. 17, the collection part 41 may be a special-shaped structure, and may include a main body 414 and an extension part 415 connected to the main body 414. The main body 414 and the extension part 415 together form a chamber for collecting the sewage. The main body 414 may be substantially a rectangular body. The extension part 415 is an irregular special-shaped structure. For example, the extension part 415 may be substantially divided into a triangle and a rectangle, or a semicircle and a rectangle, etc., which is not limited here. The space of the extension part 415 for accommodating the sewage is smaller than the space of the main body 414 for accommodating the sewage. By providing the drainage port 413 on the extension part 415, when the sewage is discharged, the sewage may be gathered in the extension part 415 by tilting the collection part 41, so as to ensure that the sewage is discharged smoothly, thus avoiding sewage, which cannot be discharged, from accumulating in the collection part 41.

In the embodiments of the present disclosure, a plurality of cliff sensors may be provided on the machine body 10. The plurality of cliff sensors may be provided around circumferential edge positions of the machine body 10. The auxiliary cleaning head 23 is located at the corner position of the machine body 10, a cliff sensor may be provided at a position of the machine body 10 close to the auxiliary cleaning head 23, and at least two cliff sensors may be provided at the position of the machine body 10 close to the auxiliary cleaning head 23. The cliff sensors may identify the surface to be cleaned to determine the physical characteristics of the surface to be cleaned, including the surface material, the degree of cleanliness, etc. The control system 80 may control the operating state of the auxiliary cleaning head 23 according to the identification result of the cliff sensor to ensure the cleaning function of the auxiliary cleaning head 23. For example, when the surface to be cleaned identified by the cliff sensor is a floor board, the auxiliary cleaning head 23 may be controlled to increase humidity, so as to ensure the cleaning effect. Alternatively, when the surface to be cleaned identified by the cliff sensor is a carpet, the auxiliary cleaning head 23 may be controlled to reduce humidity, so as to prevent from wetting the carpet.

In the embodiments of the present disclosure, as shown in FIG. 1, the detection system 60 of the cleaning robot is provided on the machine body 10. At least a part of the detection system 60 extends out from the outer edge of the machine body 10, so as to increase the detection range of the detection system 60 and thus increase the flexible adjustment capability of the cleaning robot. The detection system 60 may be an ultrasonic sensor, an infrared sensor or other sensors, and is configured to detect the material change of the surface to be cleaned, the level change of the surface to be cleaned, or to detect dirt.

In the embodiments of the present disclosure, at least a part of the detection system 60 is provided movably relative to the machine body 10, so that the position of the detection system 60 can be reliably adjusted to adapt to different application environments. The detection system 60 may achieve position adjustment under the driving of the driving mechanism. Alternatively, the detection system 60 may include a flexible mechanism, and achieve position adjustment by deforming the flexible mechanism.

Specifically, the detection system 60 is retractably provided on the machine body 10, and has an extended state and a retracted state. When the detection system is extended to the front of the cleaning robot, it may detect the floor condition in front of the cleaning robot. For example, when the cleaning robot is D-shaped, the detection system 60 may be provided near the corner of the cleaning robot, so that it is convenient for the detection system 60 to detect the floor condition in front or on the side in the retracted state. When the cleaning robot is circular, the detection system 60 may be provided at the front of the cleaning robot.

In the embodiments of the present disclosure, at least a part of the detection system 60 may extend out from the outer edge of the machine body 10, so that the detection system 60 has a retracted state in which the detection system 60 is retracted in the machine body 10 and an extended state in which the detection system 60 extends out from the machine body 10. The control system 80 can control the movement of the detection system 60 between the retracted state and the extended state. In this way, the detection system 60 can be adjusted in real time according to the operating state or the operating path of the cleaning robot, thus ensuring that the detection system 60 can accurately determine the state of the surface to be cleaned.

Specifically, the driving system 30 may drive the cleaning robot to operate on a working surface. At this time, the control system 80 can drive the detection system 60 to move from the retracted state to the extended state, so that the detection system 60 can monitor the state of the working surface in real time. In addition, the detection system 60 has a detection viewing angle towards the working surface, and thus may precisely detect the state of the working surface, such as the material change of the working surface, the level change of the working surface, or may detect dirt.

In the embodiments of the present disclosure, as shown in FIG. 1 to FIG. 3, the detection system 60 may be connected to the corner position of the machine body 10. The auxiliary cleaning head 23 may be provided at a position of the machine body 10 close to the detection system 60. The detection system 60 may identify the surface to be cleaned in advance, so as to determine the physical characteristics of the surface to be cleaned, including the surface material, the degree of cleanliness, etc. The control system 80 may control the operating state of the auxiliary cleaning head 23 according to the identification result of the detection system 60, so as to ensure the cleaning function of the auxiliary cleaning head 23. For example, when the surface to be cleaned identified by the cliff sensor is a floor board, the auxiliary cleaning head 23 may be controlled to increase humidity, so as to ensure the cleaning effect. Alternatively, when the surface to be cleaned identified by the cliff sensor is a carpet, the auxiliary cleaning head 23 may be controlled to reduce humidity, so as to prevent from wetting the carpet.

In the embodiments of the present disclosure, the detection system 60 is retractably provided in the forward portion 12 of the machine body 10, so that the detection system 60 may determine the state of the surface to be cleaned earlier, and feed it back to the control system 80. In this way, the control system 80 may adjust the travelling route and the cleaning mode of the cleaning robot according to the information fed back by the detection system 60. The detection system 60 is provided at the corner position of the forward portion 12, so that the detection system 60 may be arranged reasonably and is prevented from occupying a relatively larger area, and the detection system 60 can reliably monitor the state of the working surface at the corner of the machine body 10, thus ensuring that the cleaning robot can clean the working surface more efficiently.

In the embodiments of the present disclosure, as shown in FIG. 1 and FIG. 4, at least one detection system 60 is provided adjacent to the auxiliary cleaning head 23, and at least a part of the detection system 60 is provided directly above the auxiliary cleaning head 23. In this way, the detection system 60 can be prevented from interfering with the auxiliary cleaning head 23, and the corner position of the machine body 10 can be utilized to a greater extent. Thus, the mounting positions of the detection system 60 and the auxiliary cleaning head 23 can be reasonably arranged.

In the embodiments of the present disclosure, the control system 80 may be connected to the detection system 60. The control system 80 may control the extended state and the retracted state of the detection system 60. For example, when the cleaning robot operates, the control system 80 may control the detection system 60 to move from the retracted state to the extended state. Alternatively, when the cleaning robot stops operating, the control system 80 may control the detection system 60 to move from the extended state to the retracted state. Alternatively, when the detection system 60 detects that the working surface has a recess or the material of the working surface changes, the control system 80 controls the working state of the cleaning system 20 or the driving system 30 to change. The working surface is the surface to be cleaned. For example, when the detection system 60 detects that the working surface has a recess, the control system 80 may control the driving system 30 to decelerate, and the control system 80 may also control the cleaning system 20 to rotate at a decreasing speed. For example, when the detection system 60 detects that the material of the working surface changes, for example, changing from carpet to tile, the control system 810 may control the driving system 30 to accelerate, and the control system 80 may also control the cleaning system 20 to rotate at an increased speed.

The detection system 60 may be configured to detect the material change of the surface to be cleaned and the level change of the surface to be cleaned, or to detect dirt and then feed it back to the control system 80 to control the operating sate of the cleaning robot. For example, when the detection system 60 detects that there is a relatively larger amount of dirt on the surface to be cleaned, the control system 80 may control the cleaning robot to slow down, so as to ensure that the cleaning system 20 can better clean the surface to be cleaned. Alternatively, when the detection system 60 detects that the surface to be cleaned is a floor board, the control system 80 may control the water pump 24 to increase the flow of the washing liquid fed from the liquid supply part 22 to the cleaning head 21 and the auxiliary cleaning head 23, so as to ensure reliable cleaning of the floor. Alternatively, the control system 80 may adjust the travelling route and the cleaning mode of the cleaning robot according to the information fed back by the detection system 60. For example, when the detection system 60 is in an extended state, the detection system 60 may be provided in front of the machine body 10. In this way, the detection system 60 may determine the state of the surface to be cleaned earlier, and feed it back to the control system 80, so that the control system 80 may adjust the travelling route and the cleaning mode of the cleaning robot according to the information fed back by the detection system 60. The detection system 60 may detect the change of the floor material earlier. For example, when the floor material changes from floor board to carpet, the detection system 60 may provide relevant information to the control system 81 in time, so that the control system 80 can control the travelling direction or the cleaning mode of the cleaning robot in time. For example, the cleaning robot is controlled to slow down when the floor material changes from floor board to carpet, or the cleaning robot is controlled to reduce the amount of the liquid supplied to the cleaning head 21 and the auxiliary cleaning head 23 when the floor material changes from floor board to carpet. In the embodiments of the present disclosure, there may be a plurality of detection systems 60, so that the detection range of the detection system 60 may be enlarged. Thus, the working state of the cleaning system 20 or the driving system 30 may be assisted precisely. There may be two detection systems 60. As shown in FIG. 1, the two detection systems 60 are provided at two corner positions of the forward portion 12, respectively.

Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the description and practice of the present disclosure. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure which follow general principles of the present disclosure and include the common general knowledge or customary technical means in the art which is not disclosed in the present disclosure. The description and example embodiments are to be considered as being exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the accompanying drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is only defined by the appended claims.

Claims

1. A cleaning robot, comprising:

a machine body comprising an accommodating chamber;

a cleaning system, provided on the machine body and comprising a cleaning head wherein the cleaning head is located in the accommodating chamber;

a collection system, provided on the machine body and comprising a collection part and a power part, wherein the collection part comprises an inlet and an outlet, the accommodating chamber is in communication with the collection part through the inlet, and the power part is in pneumatic communication with the collection part through the outlet and

a plugging assembly, provided on the machine body, wherein a position of at least a part of the plugging assembly is provided to be adjustable to close or open the inlet and the outlet.

2. The cleaning robot according to claim 1, wherein the plugging assembly comprises:

a connection rod

a first plugging member, provided on the connection rod; and

a second plugging member, provided on the connection rod;

wherein the connection rod is provided movably relative to the machine body, so that the first plugging member and the second plugging member close or open the inlet and the outlet, respectively.

3. The cleaning robot according to claim 2, wherein the plugging assembly further comprises:

a driving part, connected to the connection rod to drive the connection rod to rotate relative to the machine body, so that the first plugging member and the second plugging member synchronously close or open the inlet and the outlet.

4. The cleaning robot according to claim 3, wherein the plugging assembly further comprises:

an ejector rod, connected to the connection rod through the first plugging member or the second plugging member, wherein the driving part is connected to the ejector rod to drive the connection rod to rotate relative to the machine body through the ejector rod.

5. The cleaning robot according to claim 4, wherein the plugging assembly further comprises:

an elastic member, sleeved on the connection rod, wherein an end of the elastic member abuts against the first plugging member or the second plugging member, and another end of the elastic member abuts against the machine body, so that the first plugging member or the second plugging member tightly presses the elastic member when the first plugging member and the second plugging member are driven by the ejector rod to open the inlet and the outlet;

wherein the elastic member is able to drive the first plugging member and the second plugging member to close the inlet and the outlet.

6. The cleaning robot according to claim 5, wherein the elastic member comprises a spring.

7. The cleaning robot according to claim 4, wherein the ejector rod penetrates through the collection part, and the plugging assembly further comprises:

a sealing member, located between the collection part and the ejector rod.

8. The cleaning robot according to claim 2, wherein the connection rod, the first plugging member and the second plugging member are of an integral structure.

9. The cleaning robot according to claim 1, wherein the cleaning head comprises a wet cleaning head, and the cleaning system further comprises:

a liquid supply part (22), configured to feed a washing liquid to the wet cleaning head.

10. The cleaning robot according to claim 9, wherein the liquid supply part (22) and the collection part are stacked up and down.

11. The cleaning robot according to claim 1, wherein the machine body comprises a forward portion, the cleaning system is provided in the forward portion, and the forward portion is substantially of a rectangle shape.

12. The cleaning robot according to claim 1, wherein the cleaning system further comprises an auxiliary cleaning head, the machine body comprises a forward portion, and the auxiliary cleaning head is provided at a corner position of the forward portion.

13. The cleaning robot according to claim 12, further comprising a driving system, wherein the machine body further comprises a backward portion, at least a part of the driving system is provided in the backward portion, and the driving system comprises a first driving wheel module and a second driving wheel module provided along a transverse axis of the machine body; wherein the transverse axis is perpendicular to a movement direction of the cleaning robot, and a preset angle is formed between the cleaning head and the transverse axis.

14. The cleaning robot according to claim 13, wherein the auxiliary cleaning head is provided on a side of the cleaning head tilted backwards.

15. The cleaning robot according to claim 1, further comprising:

a control system (80), connected to the plugging assembly to control the plugging assembly to close or open the inlet and the outlet.

16. The cleaning robot according to claim 13, wherein the preset angle is an acute angle.

17. The cleaning robot according to claim 16, wherein the preset angle ranges from 5 degrees to 70 degrees.

18. The cleaning robot according to claim 12, wherein a part of the auxiliary cleaning head extends beyond the machine body.

19. The cleaning robot according to claim 18, wherein the part of the auxiliary cleaning head extending beyond the machine body is less than a part of the auxiliary cleaning head provided below the machine body.

20. The cleaning robot according to claim 12, wherein a part of the auxiliary cleaning head overlaps with the cleaning head.