Abstract: The disclosure discloses a liquid level detection apparatus, including a floater and a floater accommodating portion, wherein the floater moves in the floater accommodating portion in a vertical direction; an upper clamping portion and a lower clamping portion are provided on the floater in the vertical direction, a moving groove is formed in the floater accommodating portion, the moving groove extends in the vertical direction, and the upper clamping portion and the lower clamping portion move in the moving groove in the vertical direction; and a clamping groove is formed in the moving groove extending along a horizontal direction, and when the liquid level detection apparatus inclines, the upper clamping portion offsets into the clamping groove, such that the floater not easily be sucked to block a suction port, thereby avoiding resulting in the phenomenon that an alarm is given when the water is not full in fact.

Abstract: The disclosure provides a self-cleaning method of a cleaning system, wherein the cleaning system includes a main cleaning machine and a base, and the main cleaning machine is detachably arranged on the base; and in a self-cleaning process, when a self-cleaning running condition is not met, the cleaning system stops the self-cleaning, and after the self-cleaning running condition is met, the cleaning system selects to continue to perform the self-cleaning or restart the self-cleaning. Since the self-cleaning process takes a long time, if the cleaning system stops the self-cleaning due to mis-operation in the self-cleaning process, the self-cleaning is able to be continued by means of the method after the self-cleaning condition is met again, instead of restarting self-cleaning, thereby avoiding repeated running, saving energy and improving the user experience. The disclosure is able to be applicable to different self-cleaning modes according to different conditions, thereby being flexible and efficient.

Abstract: The disclosure provides a cleaning device, including a machine body, a fluid recovery system, a floor brush, an accessory and a first control valve component. The fluid recovery system includes a fluid recovery container and a suction pipe. The floor brush includes a suction port, the suction port is configured for being in fluid communication with the fluid recovery system, and the floor brush is connected with the machine body. The accessory includes a dirt suction pipe, the dirt suction pipe is configured for being in fluid communication with the fluid recovery system, and the user is able to hold the accessory to suck dirt. The first control valve component is arranged among the suction pipe, the suction port and the dirt suction pipe, and the first control valve component is configured to control the suction pipe to be selectively communicated with the suction port or the dirt suction pipe.

Abstract: The disclosure provides a floor brush which includes a rolling brush, a cover component and a suction nozzle component. The rolling brush is configured for rotating in a preset direction. The cover component is detachably connected with the floor brush and is configured for covering part of the rolling brush. The suction nozzle component includes a panel and a suction port located in the panel and communicated with a suction source, the suction nozzle component is located below the cover component, and the suction nozzle component is detachably connected with the floor brush. The suction nozzle component in the disclosure is detachably connected with the floor brush, so that the suction nozzle component is able to be disassembled from the floor brush for cleaning, and it is not necessary to move the whole floor brush when the suction nozzle component is cleaned, thus bringing convenience for a user to operate.

Abstract: The disclosure provides a floor brush which includes a rolling brush, a cover component and a suction nozzle component. The rolling brush is configured for rotating in a preset direction. The cover component is detachably connected with the floor brush and is configured for covering part of the rolling brush. The suction nozzle component includes a panel and a suction port located in the panel and communicated with a suction source, the suction nozzle component is located below the cover component, and the suction nozzle component is detachably connected with the floor brush. The suction nozzle component in the disclosure is detachably connected with the floor brush, so that the suction nozzle component is able to be disassembled from the floor brush for cleaning, and it is not necessary to move the whole floor brush when the suction nozzle component is cleaned, thus bringing convenience for a user to operate.

Abstract: The disclosure provides a cleaning device, including a machine body, a fluid recovery system, a floor brush, an accessory and a first control valve component. The fluid recovery system includes a fluid recovery container and a suction pipe. The floor brush includes a suction port, the suction port is configured for being in fluid communication with the fluid recovery system, and the floor brush is connected with the machine body. The accessory includes a dirt suction pipe, the dirt suction pipe is configured for being in fluid communication with the fluid recovery system, and the user is able to hold the accessory to suck dirt. The first control valve component is arranged among the suction pipe, the suction port and the dirt suction pipe, and the first control valve component is configured to control the suction pipe to be selectively communicated with the suction port or the dirt suction pipe.

Abstract: The disclosure discloses a liquid level detection apparatus, including a floater and a floater accommodating portion, wherein the floater moves in the floater accommodating portion in a vertical direction; an upper clamping portion and a lower clamping portion are provided on the floater in the vertical direction, a moving groove is formed in the floater accommodating portion, the moving groove extends in the vertical direction, and the upper clamping portion and the lower clamping portion move in the moving groove in the vertical direction; and a clamping groove is formed in the moving groove extending along a horizontal direction, and when the liquid level detection apparatus inclines, the upper clamping portion offsets into the clamping groove to play a limiting role, such that the floater not easily be sucked by a suction force to block a suction port, thereby avoiding resulting in the phenomenon that an alarm is given when the water is not full in fact.

Abstract: The disclosure provides a self-cleaning method of a cleaning system, wherein the cleaning system includes a main cleaning machine and a base, and the main cleaning machine is detachably arranged on the base; and in a self-cleaning process, when a self-cleaning running condition is not met, the cleaning system stops the self-cleaning, and after the self-cleaning running condition is met, the cleaning system selects to continue to perform the self-cleaning or restart the self-cleaning. Since the self-cleaning process takes a long time, if the cleaning system stops the self-cleaning due to mis-operation in the self-cleaning process, the self-cleaning is able to be continued by means of the method after the self-cleaning condition is met again, instead of restarting self-cleaning, thereby avoiding repeated running, saving energy and improving the user experience. The disclosure is able to be applicable to different self-cleaning modes according to different conditions, thereby being flexible and efficient.

Abstract: The patent application discloses an air compressor. The air compressor comprises a pair of pistons, a motor, a flywheel, a pulley, a crankshaft. Each piston is reciprocable in a corresponding one of the cylinders so as to reciprocate along the axis of the corresponding cylinder to vary a working volume of the cylinder. The motor comprise an output shaft. The pully transmits torque from said output shaft to said flywheel so as to rotate said flywheel about said axis upon rotation of said output shaft. The crankshaft interconnects said flywheel with said piston so as to reciprocate said piston in said cylinder upon rotation of said flywheel. The diameter of the pulley is smaller than that of said flywheel.

Abstract: An optical component includes a first laser having a first light outlet and a second light outlet, a second laser having a third light outlet and a fourth light outlet, a first lens, a second lens, and an optical multiplexer. The first light outlet is configured to emit a first light beam. The second light outlet is configured to emit a second light beam. The third light outlet is configured to emit a third light beam. The fourth light outlet is configured to emit a fourth light beam. The first lens is configured to separately collimate the first light beam and the second light beam, and emit a first collimated light beam and a second collimated light beam. The second lens is configured to separately collimate the third light beam and the fourth light beam, and emit a third collimated light beam and a fourth collimated light beam.

Abstract: An optical component includes at least one optical sub-assembly, including a laser, a first lens located on a light emergence side of the laser, and an optical fiber array located on a light emergence side of the first lens. The laser has a first light outlet configured to emit a first light beam and a second light outlet configured to emit a second light beam. The first lens is configured to: transmit the first light beam and emit a first converged light beam, ransmit the second light beam and emit a second converged light beam, and transmit the first converged light beam and the second converged light beam to the optical fiber array. A first optical fiber of the optical fiber array is configured to receive the first converged light beam, and a second optical fiber of the optical fiber array is configured to receive the second converged light beam.

Abstract: The patent application discloses an air compressor. The air compressor comprises a pair of pistons, a motor, a flywheel, a pulley, a crankshaft. Each piston is reciprocable in a corresponding one of the cylinders so as to reciprocate along the axis of the corresponding cylinder to vary a working volume of the cylinder. The motor comprise an output shaft. The pulley transmits torque from said output shaft to said flywheel so as to rotate said flywheel about said axis upon rotation of said output shaft. The crankshaft interconnects said flywheel with said piston so as to reciprocate said piston in said cylinder upon rotation of said flywheel. The diameter of the pulley is smaller than that of said flywheel.

Abstract: An excrement collector and a nursing machine are provided. The excrement collector includes a pants assembly for wearing on a human body, and a working head that is able to be for being detachably butted together with the pants assembly. The working head includes an excretion recess for accommodating human excreta. The pants assembly includes an excretion opening for human excretion, and a connecting frame for being detachably butted together with the working head. In a state where the connecting frame of the pants assembly is butted together with the working head, the connecting frame is attached to the working head. The working head is able to be forward butted to the connecting frame of the pants assembly so as to be connected together with the pants assembly.

Abstract: The patent application discloses a compressed air control device. The compressed air control device for a source of compressed air on motor vehicles may comprise a housing. The housing may include an air inlet opening located at an outside surface of the housing. The housing comprises an electric motor and an air dryer. The air dryer together with the electric motor forms a first functional unit.

Abstract: The present disclosure relates to a crystal form of a pyridopyrimidine derivative and a preparation method thereof, and specifically relates to the crystal form of the compound of formula (I) and a preparation method thereof. The new crystal form has good physical and chemical properties, thereby facilitating clinical treatments.

Abstract: A vacuum cleaner is provided with a motor, and an impeller driven by the motor to rotate so as to generate suction airflow. The vacuum cleaner is further provided with an exhaust air duct, an air window wall for ventilation, a first noise reducer which is breathable, and a second noise reducer which is breathable. A tail end of the exhaust air duct is provided with an air duct outlet for air exhaust of the exhaust air duct, the air window wall is located downstream of the air duct outlet, the first noise reducer blocks the exhaust air duct, the second noise reducer is covered with an inner side of the air window wall, and an airflow discharged by the impeller flows through the exhaust air duct and sequentially passes through the first noise reducer, the second noise reducer, and the air window wall.

Abstract: Disclosed is a vacuum cleaner, including a dust collecting barrel, a machine head, a first buckle and a second buckle, the dust collecting barrel and the machine head are detachably assembled together by the first buckle and the second buckle, the machine head is provided with a motor, an air inlet window, an air outlet window, a first silencing member and a second silencing member, the air inlet window and the air outlet window are located on left and right sides of the machine head, a heat dissipation airflow for the motor enters the machine head through the air inlet window and is exhausted out of the machine head through the air outlet window, and the heat dissipation airflow passes through the air inlet window, the first silencing member, an interior of the motor, the second silencing member and the air outlet window in sequence.

Abstract: Provided are a pharmaceutically acceptable salt and a crystalline form of a GLP-1 receptor agonist and a preparation method therefor. Specifically, provided are a pharmaceutically acceptable salt and a crystalline form of a compound 2-((4-((S)-3-(4-chloro-2-fluorophenyl)-2,3-dihydrobenzo[b][1,4]dioxane-5-yl)piperidin-1-yl)methyl)-1-(((S)-oxe-tane-2-yl)methyl)-1H-benzo[d]imidazole-6-formic acid.

Abstract: The patent application discloses an air compressor. The air compressor comprises a pair of pistons, a motor, a flywheel, a pulley, a crankshaft. Each piston is reciprocable in a corresponding one of the cylinders so as to reciprocate along the axis of the corresponding cylinder to vary a working volume of the cylinder. The motor comprise an output shaft. The pully transmits torque from said output shaft to said flywheel so as to rotate said flywheel about said axis upon rotation of said output shaft. The crankshaft interconnects said flywheel with said piston so as to reciprocate said piston in said cylinder upon rotation of said flywheel. The diameter of the pulley is smaller than that of said flywheel.

Abstract: The patent application discloses an air compressor. The air compressor comprises at least two separate cylinder housings, a pair of pistons, a motor, a pair of head members, and a distribution valve unit. Each cylinder housing may define a cylinder with an axis. The axes are parallel and spaced apart. The pair of pistons has each piston being reciprocable in a corresponding one of the cylinders so as to reciprocate along the axis of the corresponding cylinder to vary a working volume of the cylinder. The motor may be positioned between the cylinder housings and drives the pistons so as to reciprocate the pistons. The pair of head members has each head member being fastened to a different one of the cylinder housings. The distribution valve unit may be positioned in between and next to the cylinder housings.