HIGH PRESSURE STEAM IRONING MACHINE WITH AUTOMATIC CONTROL OF HEATING AND WATER ADDITION

Abstract

A high pressure steam ironing machine with automatic heating and water addition controlling is provided. The ironing machine includes a housing, a bracket, an air release valve, a pressure chamber, an ironing board, a dual water and pressure control assembly and a water pump. The pressure chamber includes an upper cover and a lower seat. The upper cover and the lower seat are fixedly connected. The upper cover is provided with a steam outlet, a water inlet port, a steam inlet and a water and pressure control valve port, and the lower seat is provided with an electric heating pipe. The ironing board is connected to the lower seat, and the water outlet of the water pump is connected to the water inlet port. The air release valve assembly is connected with the steam outlet port and the steam inlet port.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

The application claims priority to Chinese patent application No. 202110700887.5, filed on Jun. 22, 2021, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to small household electrical appliances, and more specifically, to a high pressure steam ironing machine with automatic control of heating and water addition.

BACKGROUND

An iron is one of the most commonly used household appliances in modern times to iron clothes. Similar products on the market, such as hand-held steam irons, usually adopt open-type heating, which has the disadvantage that there is no pressure chamber and no pressure.

SUMMARY

It is an object of the present invention to provide a high pressure steam ironing machine that automatically controls heating and water addition in order to solve the above-mentioned problems proposed in the background art.

To achieve the above objective, the present disclosure provides technical schemes as follows.

A high pressure steam ironing machine with automatic heat and water addition controlling is provided. The ironing machine includes a housing, a bracket, an air release valve, a pressure chamber, an ironing board, a dual water and pressure control assembly, and a water pump. The pressure chamber is arranged under the bracket. The pressure chamber comprises an upper cover and a lower seat. The upper cover and the lower seat are fixedly connected. The upper cover is provided with a steam outlet, a water inlet port, a steam inlet and a water and pressure control valve port. The lower seat is provided with an electric heating pipe. The bottom of the lower seat is connected with a double-convex self-resetting thermostat. The ironing board is connected to the lower seat.

The water outlet of the water pump is connected with the water inlet port. The air release valve assembly is connected with the steam outlet port and the steam inlet port. The dual water and pressure control assembly includes a microswitch, a pressure push rod and a pressure valve. The inlet of the pressure valve is connected with a water and pressure control valve port. The pressure push rod is connected with a valve core of the pressure valve. The microswitch is provided at one side of the pressure push rod, and both the microswitch and the water pump are connected to a circuit board.

As a further scheme of the present disclosure, the air release valve assembly includes an air release valve and a valve button. The air release valve is provided with a steam inlet, a steam outlet, a push rod, a piston and a compression spring. The steam inlet and the steam outlet are respectively connected with the steam outlet port and the steam inlet port. The pressure spring and the push rod are respectively provided at two sides of the piston, and the valve button is provided at one side of the push rod.

As a further scheme of the present disclosure, a silicone gasket for sealing is provided between the upper cover and the lower seat. The silicone gasket is provided with a water inlet nozzle and a water passage end through hole, and the water inlet nozzle is connected with the water inlet port.

As a further scheme of the present disclosure, the ironing machine further includes a pressure relief valve assembly. The upper cover is provided with an abnormal pressure relief interface, and the pressure relief valve assembly is connected with the abnormal pressure relief interface.

As a further scheme of the disclosure, a sealing gasket is arranged between the ironing plate and the lower seat.

As a further scheme of the present disclosure, the housing is provided with a handle.

As a further scheme of the present disclosure, the ironing machine further includes a water tank connected at one side of the bracket, and a water inlet of the water pump is connected to the water tank.

Compared with the prior art, advantageous effects of the present disclosure are:

By providing a heatable pressure chamber, the high-pressure steam with 30-40 KPa can be generated. The heating, generation and termination of the steam can be automatically controlled, thereby ensuring safety and high efficiency;

A preheat time is short, the steam is generated immediately. The water is not completely boiled and is automatically fed and the steam is generated automatically without waste and saving energy.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is an exploded view of the structure of the present disclosure.

FIG. 2 is a structural diagram of a pressure chamber in the present disclosure.

FIG. 3 is a structural diagram of the upper cover of the pressure chamber in the present disclosure.

FIG. 4 is a structural diagram of the lower seat of the pressure chamber in the present disclosure.

FIG. 5 is a structural diagram of the air release valve assembly in the present disclosure.

FIG. 6 is a schematic structural diagram of the dual water and pressure control assembly in the present disclosure.

FIG. 7 is a schematic diagram of the structure of the present disclosure.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Technical solutions in the embodiments of the present disclosure will be clearly and completely described with reference to the accompanying drawings in the following. It is obvious that the described embodiments are only a part of the embodiments of the present disclosure, but not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by the ordinary person skilled in the art without creative efforts fall within the scope of protection of the present disclosure.

Referring to FIGS. 1-4, in the embodiments of the present disclosure, a high-pressure steam ironing machine with automatic control of heat and water addition is provided. The ironing machine includes a housing 1, a bracket 2 made of electric wood, an air release valve 3, a pressure chamber 4, an ironing board 6 made of aluminum, a dual water and pressure control assembly 7, a water pump 8, a water tank 9 and a pressure relief valve assembly 10. The housing 1 is provided with a handle 11. The water tank 9 is connected to one side of the bracket 2, and the pressure chamber 4 is provided below the bracket 2. The pressure chamber 4 includes an upper cover 41 and a lower seat 43 made of die-cast aluminum and a silicone gasket 42 for sealing between the upper cover 41 and the lower seat 43. The upper cover 41 and the lower seat 43 are fixedly connected by screws. The upper cover 41 is provided with a steam outlet port 411, an abnormal pressure relief interface 412, a water inlet port 413, a steam inlet port 414 and a water and pressure control valve port 415. The silicone gasket 42 is provided with a water inlet nozzle 421 and a water passage end through hole 422. The water inlet nozzle 421 is connected to the water inlet port 413 through a rubber hose. An electric heating pipe 432 is arranged in the lower seat 43. A double-convex self-resetting thermostat 431 is connected to the bottom of the lower seat 43. The silicone gasket 42 isolates the lower cavity into a closed water path to form high temperature and high pressure steam. In the end position of the water path, the steam enters into the upper cavity through the end through hole 422 of the water path. The steam is completely vaporized while relatively dry steam enters the upper cavity. The defect that the machine cannot be heated due to the use of the machine in the state of large angle inclination is also avoided. The ironing board 6 is connected to the lower seat 43, and a sealing gasket 5 is arranged between the ironing board 6 and the lower seat 43 for sealing.

As shown in FIG. 5, the pressure relief valve assembly 10 and the abnormal pressure relief interface 412 are connected for safe pressure relief in the case of abnormal high pressure. The water outlet of the water pump 8 is connected to the water inlet port 413. The water inlet of the water pump 8 is connected to the water tank 9. The air release valve assembly 3 includes an air release valve and a valve button 31. The air release valve is provided with an inlet port, an outlet port, a push rod 32, a piston 33 and a compression spring 34. The steam inlet port and the steam outlet port are respectively connected with the steam outlet port 411 and the steam inlet port 414. The compression spring 34 and the push rod 32 are respectively located at two sides of the piston 33. The valve button 31 is located at one side of the push rod 32. The piston 33 blocks the gas port when no steam is discharged under normal conditions. The valve button 31 is pressed, and the piston 33 is pushed by the push rod 32 to conduct the steam hole, and the steam is dustproof from the steam outlet and enters the ironing board 6.

As shown in FIG. 6, the dual water and pressure control assembly 7 includes two groups of microswitches 71, a pressure push rod 72 and a group of pressure valves 73. The inlets of the pressure valves 73 are connected to a water and pressure control valve interface 415 through a gas pipe. The pressure push rod 72 is connected to the valve core of the pressure valve 73. The microswitch 71 is provided on one side of the pressure push rod 72 and the contact of the microswitch 71 is in contact with the pressure push rod 72. Both the microswitch 71 and the water pump 8 are connected to the circuit board 81. When the air pressure reaches the set high level, the valve pushes the microswitch 71 to turn off through the pressure push rod 72. The circuit board 81 receives the signal and controls the water pump 8 to stop supplying water. The temperature in the pressure chamber 4 rises and the temperature controller trips when it reaches the temperature control point, and the heating is stopped. In the same way, when the air pressure is lower to a set low level, the pressure push rod 72 is returned, the microswitch 71 is reset and closed. The circuit board 81 controls the water pump 8 to start water supplying, In the meantime, the temperature in the cavity is reduced, when the temperature controller is turned on to the temperature control point, the heating is recovered, and steam is generated, In addition, a dual water control and pressure control structure is adopted, so that two microswitches are combined with two pressure push rods. A step difference of 0.5 bar can be designed, after the first group is operated, since the inertial air pressure will continue to rise to a certain extent, the second group of push rods push the microswitch to turn off the water pump and the heating circuit. The temperature controller as a dual protection to control the pressure of the high-pressure chamber to not exceed the preset value.

In case of failure of the dual pressure control water and pressure control assembly and the pressure reaches the set 5.0 bar, the third vent is connected to the external safety (abnormal) relief valve assembly and starts to leak to ensure a pressure safety.

As shown in FIG. 7, the working principle of the present disclosure is as follows. After the machine is powered on, the start button is pressed to enter into a working mode, at this time, the cavity of the pressure chamber 4 enters into an automatic heating state. After the temperature reaches the set value, the temperature controller is automatically switched off, the heating is stopped, and the electric control program simultaneously switch on the switch of the water pump 8 to supply water to the cavity of the high-pressure chamber to generate high-temperature and high-pressure steam. With the water being supplied, the temperature of the electric heating pipe 432 is reduced and the temperature controller is reset. When the steam pressure reaches the preset pressure of 2.5 bar, the pressure push rod 72 of the dual water and pressure control assembly operates to cut off the water supply from the water pump 8. The electric heating pipe 432 continues to heat. If the steam pressure in the cavity reach the preset value (3.5-4.0 bar), the pressure push rod 72 of the dual water and pressure control assembly operates to cut off the electric circuit of the electric heating pipe 432 and stop heating. At the same time, the power supply of the water pump 8 is additionally cut off to ensure water cut-off of the water pump by double measures. The bottom temperature of the electric heating pipe 432 continues to rise, and when the bottom temperature reaches the preset temperature of the temperature controller, the temperature controller is switched off. The heating circuit of the heating disk is also cut off, and the dual water and pressure control assembly and the temperature controller serve as dual protection to control the pressure of the high pressure chamber not to exceed a preset value.

The user turns on the steam release switch during the use.

A, the pressure in the chamber is gradually reduced, when the pressure is lower than the set value of 3.5 bar, the pressure push rod 72 of the dual water and pressure control assembly is reset, and the circuit is connected. If the temperature controller is reset, the electric heating pipe 432 starts to heat up, and the steam continues to release. When the pressure is lower than the set value of 2.5 bar, the pressure push rod 72 is reset, the water pump 8 is turned on, and the chamber continues to generate steam.

In addition, when the pressure in the cavity starts to decrease, the temperature at the bottom of the electric heating pipe 432 also decreases. When the temperature decreases to the set value, the temperature controller automatically closes. If the pressure push rod 72 is reset, and the circuit is turned on, the electric heating pipe 432 starts to heat and the cavity continues to generate steam (generally, the electric heating pipe 432 is reset earlier than the pressure push rod 72 is reset).

In case of failure of the dual water and pressure control assembly, and the pressure reaches the set 5.0 bar, the external safety (abnormal) pressure relief valve assembly connected to the second vent interface will start to leak to ensure pressure safety.

The dual water and pressure control assembly includes a double-headed pressure control valve, a pair of microswitches, a water pump circuit and the like. The microswitch 71 closes the circuit of the water pump 8, thereby cutting off the water supply. If the user releases steam, the microswitch 71 is turned on as the air pressure in the chamber decreases, turning it back on to the water supply mode.

During the operation, through the selection of three parameters of water flow rate, power and temperature controller, the water supplied are all turned into steam without waste, thus saving the energy. At the same time, the effect of high-pressure steam is achieved.

It will be apparent to those skilled in the art that the present disclosure is not limited to the details of the above-described exemplary embodiments, and the present disclosure can be embodied in other specific forms without departing from the spirit or essential characteristics of the present disclosure. Accordingly, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the disclosure is defined by the appended claims rather than the foregoing description. It is therefore intended that all variations falling within the meaning and scope of the equivalents of the claims be encompassed within the present invention. Any reference signs in the claims should not be taken as limiting the claims to which they relate.

In addition, it should be understood that although the specification is described in terms of embodiments, not each embodiment contains only one independent technical solution, and that the description is described only for the sake of clarity, those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high pressure steam ironing machine with automatically control of heating and water addition, comprising:

a housing (1), a bracket (2), an air release valve (3), a pressure chamber (4), an ironing board (6), a dual water and pressure control assembly (7), a water pump (8); the pressure chamber (4) is provided under the bracket (2); the pressure chamber (4) comprises an upper cover (41) and a lower seat (43); the upper cover (41) and the lower seat (43) are fixedly connected; the upper cover (41) is provided with a steam outlet port (411), a water inlet port (413), a steam inlet port (414) and a water and pressure control valve port (415); the bottom of the lower seat (43) is connected with a double-convex self-resetting thermostat (431), and the ironing board (6) is connected with the lower seat (43);

a water outlet of the water pump (8) is connected with the water inlet port (413); the air release valve assembly (3) is connected with the steam outlet port (411) and the steam inlet port (414); the dual water and pressure control assembly (7) comprises a microswitch (71), a pressure push rod (72) and a pressure valve (73); the inlet of the pressure valve (73) is connected to a water and pressure control valve interface (415); the pressure push rod (72) is connected to a valve core of the pressure valve (73), and the microswitch (71) is provided at one side of the pressure push rod (72); the microswitch (71) and the water pump (8) are both connected to the circuit board (81).

2. The ironing machine of claim 1, wherein the air release valve assembly (3) comprises an air release valve and a valve button (31); the air release valve is provided with a steam inlet, a steam outlet, a push rod (32), a piston (33) and a compression spring (34); the steam inlet and the steam outlet are respectively connected with the steam outlet port (411) and the steam inlet port (414); the pressure spring (34) and the push rod (32) are respectively provided at two sides of the piston (33); and the valve button (31) is provided on one side of the push rod (32).

3. The ironing machine of claim 1, wherein a silicone gasket (42) for sealing is provided between the upper cover (41) and the lower seat (43); the silicone gasket (42) is provided with a water inlet nozzle (421) and a water passage end through hole (422); and the water inlet nozzle (421) is connected with the water inlet port (413).

4. The ironing machine of claim 1, further comprising a pressure relief valve assembly (10), an abnormal pressure relief interface (412) is arranged on the upper cover (41); the pressure relief valve assembly (10) is connected to the abnormal pressure relief interface (412).

5. The ironing machine of claim 1, wherein a sealing gasket (5) is arranged between the ironing board (6) and the lower seat (43).

6. The ironing machine of claim 1, wherein a handle (11) is provided on the housing (1).

7. The ironing machine of claim 1, further comprising a water tank (9) connected to one side of the bracket (2); wherein the water inlet of the water pump (8) is connected to the water tank (9).