WO2023169551A1

WO2023169551A1 - Cleaning device

Info

Publication number: WO2023169551A1
Application number: PCT/CN2023/080728
Authority: WO
Inventors: 霍鹏飞; 沙宏磊; 俞天野; 王士玉; 王向荣
Original assignee: 亿昇(天津)科技有限公司
Priority date: 2022-03-11
Filing date: 2023-03-10
Publication date: 2023-09-14
Also published as: CN114321026B; CN114321026A

Abstract

A cleaning device, comprising a recycling unit, a conversion unit, and a cleaning unit. The recycling unit comprises a recycling pipeline and a collection assembly; a collection end of the collection assembly is located in the recycling pipeline; and wind energy in the recycling pipeline can drive the collection assembly to rotate. The conversion unit comprises a booster fan and a connection pipeline; a delivery end of the collection assembly is connected to a drive end of the booster fan and is configured to drive the booster fan to operate; and an air outlet end of the booster fan is connected to an inlet end of the connection pipeline. A partition plate for partitioning the interior of a box body into an energy storage cavity and a liquid cavity is provided in the box body; an energy storage assembly is connected to an opening end of the box body and can block a first end of the energy storage cavity; an outlet end of the connection pipeline is communicated with a second end of the energy storage cavity and can charge the energy storage assembly; a cleaning assembly is communicated with the liquid cavity; and the energy storage cavity is communicated with the liquid cavity by means of a switch valve of the partition plate.

Description

Cleaning device

This application claims priority from the Chinese patent application with the filing date of March 11, 2022 and the application number 202210234702.0. The entire content of this application is incorporated into this application by reference.

Technical field

The present application relates to the technical field of vacuum pumps, for example, to a cleaning device.

Background technique

In related technologies, in order to ensure the inlet air volume, the magnetic levitation turbine vacuum pump has to vent directly to the outside, which results in high energy and noise in the outlet pipeline, resulting in a waste of resources; after the magnetic levitation turbine vacuum pump has been used for a period of time, it needs to be shut down to clean the gas-water separation system. Silt on the demister plate of the air compressor and scaling on the vacuum pump impeller generally require the factory to provide high-pressure water guns. However, some factories may have equipment far away from the water pump, resulting in inconvenient cleaning and waste of resources.

Contents of the invention

This application provides a cleaning device that can solve the problems of inconvenient cleaning and poor resource utilization of magnetic levitation turbine vacuum pumps in related technologies.

One embodiment provides a cleaning device applied to a magnetic levitation turbine vacuum pump. The cleaning device includes:

A recovery unit, the recovery unit includes a recovery pipe and a collection assembly, the collection end of the collection assembly is located in the recovery pipe, and the wind energy in the recovery pipe can drive the collection assembly to rotate;

Conversion unit, the conversion unit includes a booster fan and a connecting pipeline, the transmission end of the collection assembly is connected to the driving end of the booster fan and is configured to drive the booster fan to operate, the booster The air outlet end of the fan is connected to the inlet end of the connecting pipe; and

Cleaning unit, the cleaning unit includes a box, an energy storage component and a cleaning component. The box is provided with a partition that divides the box into an energy storage chamber and a liquid chamber. The energy storage component is connected to The open end of the box can block the first end of the energy storage cavity, and the outlet end of the connecting pipe is connected with the second end of the energy storage cavity and can charge the energy storage component. Yes, the cleaning component is connected to the liquid chamber, and the energy storage chamber and the liquid chamber are connected through the switch valve of the partition plate.

Description of the drawings

Figure 1 is a schematic assembly structure diagram of a magnetic levitation turbine vacuum pump and cleaning device in an embodiment of the present application;

Figure 2 is a schematic front structural view of the cleaning device in Figure 1;

Figure 3 is a side cross-sectional view of the cleaning device in Figure 1;

Figure 4 is an enlarged structural schematic diagram of part A of the cleaning device in Figure 3;

Figure 5 is a schematic diagram of the assembly structure of the recovery unit and booster fan of the cleaning device in Figure 2;

Figure 6 is a schematic diagram of the overall structure of the cleaning unit of the cleaning device in Figure 2;

Figure 7 is a schematic structural diagram of the cleaning device in the high-pressure energy storage stage in an embodiment of the present application;

Figure 8 is a schematic structural diagram of the cleaning device in the high-pressure holding stage according to an embodiment of the present application;

Figure 9 is a schematic structural diagram of the cleaning device in the high-pressure transfer stage according to an embodiment of the present application;

Figure 10 is a schematic structural diagram of the cleaning device at the end of high-pressure transfer in an embodiment of the present application;

Figure 11 is a schematic structural diagram of the cleaning device in the water replenishing stage according to an embodiment of the present application.

In the picture:
100. Cleaning device;
10. Recycling unit; 111. Pipe body part; 112. Wrapping part; 121. Rotating wheel; 1211. Main part;
1212. Impeller part; 123. Fixing seat; 1231. Bearing; 122. Transmission shaft;
20. Conversion unit; 21. Booster fan; 22. Connecting pipeline; 221. Check valve;
30. Cleaning unit; 31. Box; 311. Partition; 3111. On/off valve; 312. Energy storage chamber; 313.
Liquid chamber; 314, venting valve; 315, water filling valve; 316, bracket; 321, energy storage spring; 3221, resisting part; 3222, sliding part; 323, fixed platform; 3231, limiting part; 3232, connecting part; 331 , cleaning pipeline; 3311, control valve; 332, high-pressure water gun;
41. Pressure relief pipeline; 42. Pressure relief valve; 43. Muffler; 44. Anti-spring cap;
200. Magnetic levitation turbine vacuum pump.

Detailed ways

In the description of this application, unless otherwise explicitly stipulated and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body. ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood on a case-by-case basis.

In this application, unless otherwise explicitly stated and limited, the term "above" or "below" a first feature on a second feature may include direct contact between the first and second features, or may also include the first and second features. Not in direct contact but through additional characteristic contact between them. Furthermore, the terms "above", "above" and "above" a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature. “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this embodiment, the terms "upper", "lower", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplified operation, rather than instructions. Or it is implied that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and have no special meaning.

Figure 1 is a schematic diagram of the assembly structure of a magnetic levitation turbine vacuum pump and a cleaning device in an embodiment of the present application. Figure 2 is a schematic front structural view of the cleaning device in Figure 1. FIG. 3 is a side cross-sectional view of the cleaning device in FIG. 1 . As shown in Figures 1, 2 and 3, the cleaning device 100 in an embodiment of the present application includes a recovery unit 10, a conversion unit 20 and a cleaning unit 30. The recovery unit 10 includes a recovery pipe and a collection assembly. The collection end of the collection assembly is located at the recovery unit. In the pipeline, the wind energy in the recovery pipeline can drive the collection component to rotate. The conversion unit 20 includes a booster fan 21 and a connecting pipeline 22. The transmission end of the collection component is connected to the driving end of the booster fan 21 and can drive the booster fan. 21 is operated, and the air outlet end of the booster fan 21 is connected to the inlet end of the connecting pipe 22. As shown in Figure 7, the cleaning unit 30 includes a box 31, an energy storage component and a cleaning component. The box 31 is equipped with a The interior of the box 31 is divided into a partition 311 into an energy storage chamber 312 and a liquid chamber 313. The energy storage component is connected to the open end of the box 31 and can block the first end of the energy storage chamber 312, and is connected to the outlet end of the pipeline 22. It is connected to the second end of the energy storage chamber 312 and can charge the energy storage component. The cleaning component is connected to the liquid chamber 313. The energy storage chamber 312 and the liquid chamber 313 are connected through the switch valve 3111 of the partition 311.

By using the cleaning device 100 in this technical solution, the recovery pipe can collect wind energy and use the wind energy to drive the collection assembly to rotate, thereby driving the booster fan 21 to operate. The high-pressure gas generated by the booster fan 21 flows into the energy storage of the box 31 At the same time, the high-pressure gas will act on the energy storage component and cause the energy storage component to store energy. When the vacuum pump needs to be cleaned, the energy storage component in the energy storage chamber 312 will quickly pass through the switch valve 3111 of the partition 311. It rushes into the liquid chamber 313 and realizes high-pressure flushing of the vacuum pump through the cleaning component, which improves convenience, improves the recycling rate of wind energy, and reduces the loss of resources.

In other embodiments of the present application, the booster fan can also be replaced by a generator or other forms of kinetic energy converters. One embodiment of the present application is a booster fan, which can directly convert energy and reduce the energy loss of the system.

In other embodiments of the present application, as shown in Figure 4, the recycling pipeline includes a pipe body part 111 and a wrapping part 112. The wrapping part 112 is vertically connected to the bottom end of the pipe body part 111, and the inside of the wrapping part 112 is connected to the pipe body. The interior of part 111 is connected. In this embodiment, the tube body part 111 collects wind energy, and the wrapping part 112 can provide an arrangement space for the collection end of the collection assembly, so that the wind energy can drive the collection end of the collection assembly, thereby acting on the subsequent booster fan 21 . In this embodiment, the inside of the wrapping part 112 is connected with the inside of the tube body part 111, which allows the wind energy in the recovery pipe to flow into the wrapping part 112, so that the collection end of the collection assembly can be affected by the wind energy in each direction, improving the Energy recovery efficiency and reliability. In addition, the wrapping part 112 in this embodiment is vertically connected to the bottom end of the tube body part 111, which can keep the transmission shaft 122 in a horizontal state and further ensure the rotation accuracy of the transmission shaft 122.

In other embodiments of the present application, as shown in Figures 4 and 5, the collection assembly includes a rotating wheel 121, a transmission shaft 122 and a fixed seat 123. Most of the rotating wheels 121 are partially located inside the wrapping part 112. The other part is located inside the tube body part 111. The first end of the transmission shaft 122 can pass through the wrapping part 112 and be connected to the rotating wheel 121. The second end of the transmission shaft 122 is connected to the supercharging fan 21 and can drive supercharging. The fan 21 operates. In this embodiment, the function of the rotating wheel 121 is to convert wind energy into mechanical energy, and then transfer the mechanical energy to the booster fan 21 through the transmission shaft 122 connected to the rotating wheel 121, thereby realizing the recycling of wind energy. Among them, a plurality of bearings 1231 are provided at the top of the fixed seat 123. The plurality of bearings 1231 are sleeved on the transmission shaft 122 and are arranged at intervals. The plurality of bearings 1231 can support the rotation of the transmission shaft 122 and reduce the friction of the transmission shaft 122 during movement. Friction coefficient, and ensure rotation accuracy, improving reliability.

In other embodiments of the present application, as shown in FIG. 4 , the rotating wheel 121 includes a main body part 1211 and a plurality of impeller parts 1212 . The plurality of impeller parts 1212 are spaced apart in the circumferential direction of the main body part 1211 . The center of the main body part 1211 is at a distance from the tube. The minimum length dimension of the axis of the body portion 111 is equal to or smaller than the radius dimension of the tube body portion 111 . In this embodiment, the impeller portion 1212 has a sheet-like structure, and the sheet-like structure is perpendicular to the direction of the wind flow, which can maximize the wind flow acting on the impeller portion 1212 and improve the conversion efficiency of wind energy and mechanical energy. In this embodiment, the plurality of impeller parts 1212 are evenly arranged along the circumferential direction of the main body part 1211, which can make the force on the rotating wheel 121 more uniform, thereby stabilizing the rotation speed of the rotating wheel 121 and improving reliability. The minimum distance between the center of the main body part 1211 and the axis of the tube body part 111 is equal to or less than the radius of the tube body part 111. During the rotation of the rotating wheel 121, the overall structure of the impeller part 1212 can be ensured to be located within the tube body part 111, so that The air flow in the tube body part 111 is in full contact with the impeller part 1212, further improving the air flow. The efficiency of converting mechanical energy improves reliability.

In other embodiments of the present application, as shown in Figures 6 and 7, the energy storage assembly includes an energy storage spring 321, an energy storage baffle and a fixed platform 323. The connecting portion 3232 of the fixed platform 323 is covered with the opening of the box 31 end and blocks the first end of the energy storage cavity 312. The limiting portion 3231 of the fixed platform 323 is located in the energy storage cavity 312. One end of the energy storage baffle is sleeved on the outside of the limiting portion 3231 and can move in the horizontal direction. , the energy storage spring 321 is sleeved on the outside of the first end of the energy storage baffle, and the two ends of the energy storage spring 321 are elastically abutted against the connecting portion 3232 and the second end of the energy storage baffle respectively. In this embodiment, one end of the box 31 has an open structure, which facilitates the assembly of the energy storage spring 321 and the energy storage baffle into the energy storage cavity 312 of the box 31, thereby improving the efficiency of assembly and disassembly. The connecting portion 3232 of the fixed platform 323 is connected to the open end of the box 31, which can achieve the function of sealing the energy storage cavity 312, thereby improving the sealing performance and reliability. One end of the fixed baffle is sleeved on the outside of the limiting portion 3231 of the fixed platform 323 located in the energy storage cavity 312, which can limit the vertical displacement of the energy storage baffle and ensure that the energy storage baffle can only move in the horizontal direction. Improved accuracy. In addition, the energy storage spring 321 can be compressed when the air flow connecting the pipeline 22 enters the energy storage chamber 312, that is, performs an energy storage operation. When cleaning is required, the on/off valve 3111 of the partition 311 is opened, and the energy storage spring 321 can perform The stretching or stretching operation causes the gas to be quickly pressed into the liquid chamber 313, thereby achieving high-pressure cleaning.

In other embodiments of the present application, as shown in Figure 7, the energy storage baffle includes a resisting portion 3221 and a sliding portion 3222 located on one side of the resisting portion 3221. The sliding portion 3222 is sleeved outside the limiting portion 3231, and the resisting portion 3221 The circumferential side surface of the housing 31 is in contact with the inner wall surface of the box body 31 . The sliding part 3222 is set outside the limiting part 3231, which can ensure the horizontal displacement of the energy storage baffle and limit the vertical displacement, ensuring that the energy storage baffle will not be skewed during movement, thereby avoiding malfunctions during the operation. . The circumferential side surface of the resisting portion 3221 is in contact with the inner wall surface of the box 31, which allows the air flow in the connecting pipe 22 to stably push the energy storage baffle, and the phenomenon that the air flow penetrates the energy storage baffle and pushes the energy storage baffle in the opposite direction does not occur. occur.

In other embodiments of the present application, as shown in FIG. 7 , the cleaning unit 30 includes a pressure relief assembly. The pressure relief assembly includes a pressure relief pipeline 41 , a pressure relief valve 42 , a muffler 43 and an anti-drench cap 44 . The pressure relief valve 42 and silencer 43 are located on the pressure relief pipeline 41, the anti-drench cap 44 is vertically located on the outlet end of the pressure relief pipeline 41, and the inlet end of the pressure relief pipeline 41 is connected with the second end of the energy storage chamber 312. . When the air flow in the connecting pipe 22 continues to flow into the energy storage chamber 312 and the pressure of the energy storage chamber 312 reaches the maximum, the excess air flow or gas will pass through the pressure relief valve 42 and the silencer 43 and finally flow to the outside, causing the energy storage chamber 312 to reach the maximum pressure. The energy chamber 312 will not malfunction due to excessive pressure, thereby improving reliability. The opening pressure of the pressure relief valve 42 is equal to or less than the maximum pressure that the energy storage chamber 312 can withstand. The silencer 43 can reduce the gas flow noise in the pressure relief pipeline 41 and improve the noise reduction performance. The anti-drench cap 44 is installed vertically at the outlet end of the pressure relief pipe 41, which can prevent rainwater and other impurities from intruding into the pressure relief pipe 41, thereby improving the reliability of the pressure relief pipe 41. Reliability.

In other embodiments of the present application, as shown in Figure 7, the cleaning component includes a high-pressure water gun 332, a cleaning pipeline 331 and a control valve 3311 provided on the cleaning pipeline 331. The inlet end of the cleaning pipeline 331 and the liquid chamber 313 The bottom end of the cleaning pipe 331 is connected with the high-pressure water gun 332 . The high-pressure water gun 332 can flow out the liquid in the liquid chamber 313 at high pressure and high speed through the cleaning pipeline 331, and finally acts on the magnetic levitation turbine vacuum pump 200 to realize the flushing operation.

In other embodiments of the present application, as shown in FIG. 7 , the box 31 is also provided with a vent valve 314 and a water filling valve 315. The vent valve 314 and the water filling valve 315 are respectively connected with the liquid chamber 313. When the water in the water tank is used up or insufficient, close the control valve 3311 of the high-pressure water gun 332, open the vent valve 314 and the water filling valve 315 of the water tank, and perform water filling. The excess air will be discharged through the vent valve 314 of the water tank. When the water volume exceeds the tank body 31 (mainly to prevent the liquid level from exceeding the switch valve 3111 of the partition 311), close the water filling valve 315 and the venting valve 314 of the water tank.

In other embodiments of the present application, as shown in FIG. 7 , the connecting pipeline 22 is provided with a check valve 221 , and the check valve 221 is configured to allow gas to flow in one direction.

In other embodiments of the present application, a liquid level sensor is provided in the liquid chamber 313 , and the liquid level sensor is configured to detect the liquid level in the liquid chamber 313 in real time.

In other embodiments of the present application, as shown in FIG. 7 , the bottom end of the box 31 is provided with multiple brackets 316 . The multiple brackets 316 are spaced apart to support the box 31 and improve stability and reliability.

In one embodiment, as shown in Figures 1 and 2, the operation process of the cleaning device 100 of the present application is as follows: when the magnetic levitation turbine vacuum pump 200 is running, a large amount of wind energy is generated at the outlet end, and the wind energy flows through the recovery pipe through the outlet pipe. The rotating wheel 121 drives the transmission shaft 122 to rotate and generate mechanical energy. Since the transmission shaft 122 is connected to the booster fan 21, it can drive the booster fan 21 to rotate and make the booster fan 21 generate high-pressure gas. At the same time, the high-pressure gas will flow along the connecting pipe. The road 22 reaches the inside of the box 31 . As shown in Figure 7, when the high-pressure gas is delivered into the box 31 along the connecting pipe 22, the energy storage component begins to perform the energy storage stage. The high-pressure gas pushes the energy storage baffle to compress the energy storage spring 321 and causes the energy storage spring 321 to have Sufficient elastic potential energy, as shown in Figure 8, when the pressure of the energy storage chamber 312 reaches the critical value, the energy storage chamber 312 enters the high-pressure pressure maintaining stage. At this time, the pressure exceeding the specified pressure will push open the baffle of the pressure relief valve 42 and The spring in the pressure relief valve 42 is discharged from the anti-drench cap 44 through the muffler 43. At this time, the pressure in the energy storage chamber 312 can still maintain a high pressure state. As shown in Figures 9 and 10, when the high-pressure water gun 332 is required to clean the vacuum pump, the switch valve 3111 of the partition 311 is opened. At this time, part of the pressure of the energy storage chamber 312 and the potential energy of the energy storage spring 321 push the baffle of the pressure relief valve 42 The generated pressure will pressurize the liquid chamber 313 through the passage opened by the switch valve 3111 of the partition 311. At this time, the control valve of the high-pressure water gun 332 is opened. 3311 can spray out the pressurized water flow and realize the flushing operation of the magnetic levitation turbine vacuum pump 200. As shown in Figure 11, when the water in the water tank is used up or insufficient, the liquid level sensor prompts the water tank to add water. At this time, the switch valve 3111 of the partition 311 is closed to isolate the liquid chamber 313 and the energy storage chamber 312, and the control of the high-pressure water gun 332 is turned off. Valve 3311, open the water tank venting valve 314 and the water filling valve 315 to inject water. The excess air will be discharged through the water tank venting valve 314. When the water volume exceeds the internal height limit of the box 31 (mainly to prevent the liquid level from exceeding the switch valve 3111 of the partition 311 ), the water filling valve 315 and the venting valve 314 of the water tank are closed, so that the tank 31 reaches the stage where energy storage can be performed again.

Claims

A cleaning device applied to a magnetic levitation turbine vacuum pump (200), the cleaning device includes:

Recovery unit (10). The recovery unit (10) includes a recovery pipe and a collection assembly. The collection end of the collection assembly is located in the recovery pipe. The wind energy in the recovery pipe can drive the collection assembly to rotate;

Conversion unit (20), the conversion unit (20) includes a booster fan (21) and a connecting pipeline (22), the transfer end of the collection assembly is connected to the driving end of the booster fan (21), and It is configured to drive the booster fan (21) to operate, and the outlet end of the booster fan (21) is connected to the inlet end of the connecting pipe (22); and

Cleaning unit (30). The cleaning unit (30) includes a box (31), an energy storage component and a cleaning component. The box (31) is equipped with an energy storage device that divides the interior of the box (31) into energy storage units. The partition (311) of the chamber (312) and the liquid chamber (313), the energy storage component is connected to the open end of the box (31) and can block the first end of the energy storage chamber (312) , the outlet end of the connecting pipe (22) is connected with the second end of the energy storage chamber (312) and can charge the energy storage component, the cleaning component and the liquid chamber (313) The energy storage chamber (312) and the liquid chamber (313) are connected through the switch valve (3111) of the partition (311).
The cleaning device according to claim 1, wherein the recovery pipe includes a pipe body part (111) and a wrapping part (112), and the wrapping part (112) is connected to the outside of the pipe body part (111), The inside of the wrapping part (112) is connected with the inside of the tube body part (111).
The cleaning device according to claim 2, wherein the collection assembly includes a rotating wheel (121), a transmission shaft (122) and a fixed seat (123), and a part of the rotating wheel (121) is located in the wrapping part (121). 112), the other part of the rotating wheel (121) is located inside the tube body part (111), and the wind energy in the tube body part (111) can drive the rotating wheel (121) to rotate, The first end of the transmission shaft (122) can pass through the wrapping part (112) and be connected to the rotating wheel (121), and the second end of the transmission shaft (122) is connected to the supercharger fan. (21) is connected to and can drive the booster fan (21) to operate. A plurality of bearings (1231) are provided at the top of the fixed seat (123), and the plurality of bearings (1231) are sleeved on the transmission on the shaft (122) and set at intervals.
The cleaning device according to claim 3, wherein the rotating wheel (121) includes a main body part (1211) and a plurality of impeller parts (1212), and the plurality of impeller parts (1212) are spaced apart from the main body part. In the circumferential direction of (1211), the minimum length dimension from the center of the main body part (1211) to the axis of the tube body part (111) is equal to or smaller than the radius dimension of the tube body part (111).
The cleaning device according to claim 1, wherein the energy storage component includes an energy storage spring (321), an energy storage baffle and a fixed platform (323), and the connecting portion (3232) of the fixed platform (323) is covered located in the box (31) and blocks the first end of the energy storage cavity (312). The limiting portion (3231) of the fixed platform (323) is located in the energy storage cavity (312). The first end of the energy baffle is sleeved on the outside of the limiting part (3231) and can move in the horizontal direction, and the energy storage spring (321) is sleeved on the outside of one end of the energy storage baffle, Both ends of the energy storage spring (321) are elastically abutted against the connecting portion (3232) and the second end of the energy storage baffle respectively.
The cleaning device according to claim 5, wherein the energy storage baffle includes a resisting part (3221) and a sliding part (3222) located on one side of the resisting part (3221), and the sliding part (3222) covers Located outside the limiting portion (3231), the outer surface of the resisting portion (3221) is in contact with the inner wall surface of the box (31).
The cleaning device according to claim 1, wherein the cleaning unit (30) includes a pressure relief component, the pressure relief component includes a pressure relief pipeline (41), a pressure relief valve (42), and a silencer (43) and an anti-flooding cap (44). The pressure relief valve (42) and silencer (43) are provided on the pressure relief pipeline (41). The anti-flooding cap (44) is installed vertically on the pressure relief pipe (41). The outlet end of the pressure pipeline (41), and the inlet end of the pressure relief pipeline (41) are connected with the second end of the energy storage chamber (312).
The cleaning device according to claim 1, wherein the cleaning component includes a high-pressure water gun (332), a cleaning pipeline (331) and a control valve (3311) provided on the cleaning pipeline (331), The inlet end of the cleaning pipeline (331) is connected to the bottom end of the liquid chamber (313), and the outlet end of the cleaning pipeline (331) is connected to the high-pressure water gun (332).
The cleaning device according to claim 1, wherein the box (31) is also provided with a venting valve (314) and a water filling valve (315), the venting valve (314) and the water filling valve (315) are respectively connected with the liquid chamber (313).
The cleaning device according to claim 1, wherein the connecting pipe (22) is provided with a check valve (221), and the check valve (221) is configured to allow gas to flow in one direction.