A car wiping device with pressure relief function

Abstract

The present application is suitable for the technical field of vehicle cleaning equipment. The present application discloses a car wiping device with pressure relief function, which comprises a car wiping mechanism, a cleaning liquid containing mechanism, a cleaning mechanism for cleaning the car wiping mechanism, a cleaning liquid conveying mechanism for conveying the cleaning liquid in the cleaning liquid containing mechanism to the cleaning mechanism, and a pressure relief mechanism for relieving the air pressure of the cleaning liquid containing mechanism during the cleaning process. During use, the cleaning liquid is continuously conveyed to the cleaning mechanism by the cleaning liquid conveying mechanism, and the car wiping mechanism is cleaned online by the cleaning mechanism. The air generated by the car wiping mechanism during the cleaning process is relieved by the pressure relief mechanism, avoiding the phenomenon of air bubble escaping outside the car wiping mechanism and the backwater efficiency.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and in particular to a car cleaning device with a pressure relief function. Background Technology

[0002] With economic development, vehicles have become an integral part of everyday life for ordinary people. During use and parking, vehicles inevitably accumulate dust and grime, which over time detracts from their appearance, requiring periodic washing. Current washing methods include professional car detailing shops or high-pressure water washes. However, professional detailing shops are often located far apart, requiring the vehicle to be moved, which is time-consuming, and the cost is relatively high. High-pressure water washes require a large volume of water, which is often unavailable in urban areas.

[0003] Chinese patent CN201320487810.5 discloses a miniature portable car wash machine. Its structure includes an operating handle at one end of the frame and a soft-bristled brush roller at the other. The soft-bristled brush roller is connected to a brush roller motor inside the frame via a synchronous belt. A take-up roller motor is connected to the take-up roller via a synchronous belt. The take-up roller drives a coarse wiping roller, a wiping cloth positioning roller, a fine wiping roller, and a feed roller via the wiping cloth. These rollers are all shaft-connected within the frame. Its advantages include: novel and simple structure, convenient use, flexible operation, and portability. It uses less water, provides good cleaning results, and is environmentally friendly. While this solution saves a certain amount of water compared to traditional car washing methods, the inclusion of the soft-bristled brush roller, take-up roller, and related drive mechanisms makes the entire car wash machine less convenient to use. Furthermore, the large number of rotating parts makes operation and maintenance less convenient. Summary of the Invention

[0004] The main technical problem solved by this invention is to provide a car washing device with a pressure relief function. This device avoids the need for large amounts of water during car washing, improving water utilization efficiency and saving energy and protecting the environment. Furthermore, since the device has only one rotating part, its ease of use and maintenance is enhanced.

[0005] To address the aforementioned problems, the present invention provides a car wiping device with a pressure relief function. The car wiping device with a pressure relief function includes a car wiping mechanism with a wiping roller, a cleaning fluid holding mechanism, a cleaning mechanism for cleaning the car wiping mechanism, a cleaning fluid conveying mechanism for conveying the cleaning fluid in the cleaning fluid holding mechanism to the cleaning mechanism, and a pressure relief mechanism for relieving the air pressure in the cleaning fluid holding mechanism during the cleaning process.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the pressure relief mechanism includes a pressure relief port and a pressure relief channel connected to the pressure relief port. The pressure relief channel is provided with two pre-pressure relief ports that are respectively connected to the cleaning fluid holding mechanism and a pre-pressure relief port control component that controls one of the two pre-pressure relief ports to be connected to the pressure relief port through the pressure relief channel.

[0008] Furthermore, the pre-relief port control assembly includes a relief channel and two relief control switches connected to the relief channel. When the two relief control switches are not on the same horizontal line, one of the relief control switches is in the closed state.

[0009] Furthermore, the pressure relief control switch includes a body with a cavity, a pre-pressure relief port located in the body communicating with the cavity, and a movable ball valve and a limiting part restricting the movement of the ball valve located within the cavity.

[0010] Furthermore, the bottom of the cavity is provided with an inclined surface that allows the ball valve to move toward the pre-pressure relief port, and a connecting surface at the bottom of the inclined surface that is level with the pre-pressure relief port.

[0011] Furthermore, the pre-release port is made of an elastic material.

[0012] Based on the above technical solution, the present invention can be further improved as follows.

[0013] Furthermore, the cleaning mechanism includes a scrubbing trough that abuts against the surface of the wiping roller, the scrubbing trough having an inlet and an outlet.

[0014] Furthermore, the washing tank is a closed structure, with the water outlet and water inlet located at opposite ends of its length.

[0015] Furthermore, the washing trough includes a squeezing strip and a water guiding strip that abut against the surface of the wiping roller.

[0016] Furthermore, the cleaning mechanism also includes a partition bar that contacts the surface of the wiping roller, and the partition bar and the squeezing bar form a drain groove, which is connected to the outlet of the washing tank.

[0017] Based on the above technical solution, the present invention can be further improved as follows.

[0018] Furthermore, the cleaning fluid includes water, cleaning solution, and mixtures thereof.

[0019] Based on the above technical solution, the present invention can be further improved as follows.

[0020] Furthermore, the car wiping device also includes a conversion mechanism that converts the cleaning fluid recovered from the wiping roller into clean water.

[0021] Furthermore, the car wiping device also includes a conversion mechanism that converts the cleaning fluid squeezed from the surface of the wiping roller by the squeezing strip from the drain trough into clean water.

[0022] Furthermore, the conversion mechanism includes a cage-like support and an isolation layer that forms a relatively independent space for the cage-like support, the isolation layer being provided with filter perforations.

[0023] This invention relates to a car wiping device with a pressure relief function, comprising a wiping mechanism with wiping rollers, a cleaning fluid holding mechanism, a cleaning mechanism for cleaning the wiping mechanism, a cleaning fluid delivery mechanism for delivering cleaning fluid from the cleaning fluid holding mechanism to the cleaning mechanism, and a pressure relief mechanism for relieving pressure in the cleaning fluid holding mechanism during the cleaning process. In use, the cleaning fluid delivery mechanism continuously supplies cleaning fluid to the cleaning mechanism, which then performs online cleaning on the wiping mechanism. During the cleaning process, the wiping mechanism needs to press the surface of the wiping rollers to maintain an appropriate moisture content. Air trapped in the pores on the surface of the wiping rollers is carried into the washing tank and then into the cleaning fluid holding mechanism through the drain pipe. This causes the pressure in the cleaning fluid holding mechanism to rise, resulting in air bubbles escaping from the surface of the wiping mechanism. The pressure relief mechanism, connected to the outside of the cleaning fluid holding mechanism, relieves this pressure, preventing air bubbles from escaping from the wiping mechanism and improving water return efficiency.

[0024] The beneficial effects of this invention are as follows: The car wiping device continuously supplies cleaning fluid to the cleaning mechanism through the cleaning fluid delivery mechanism, and the cleaning mechanism performs online cleaning on the car wiping mechanism. During the cleaning process, the car wiping mechanism needs to squeeze the surface of the wiping roller to maintain the water content of the wiping roller at an appropriate humidity. During this process, the air trapped in the pores on the surface of the wiping roller will be carried into the washing tank and enter the cleaning fluid holding mechanism through the drain pipe. This causes the air pressure in the cleaning fluid holding mechanism to rise. At the same time, air bubbles will form on the surface of the car wiping mechanism and escape. By providing a pressure relief mechanism that communicates with the outside in the cleaning fluid holding mechanism, the pressure is relieved, and the phenomenon of air bubbles escaping from the car wiping mechanism is avoided, thereby improving the water return efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without exceeding the scope of protection claimed in this application.

[0026] Figure 1 This is a schematic diagram of an embodiment of a car cleaning device with pressure relief function.

[0027] Figure 2This is a schematic diagram of an embodiment of the cleaning fluid holding mechanism of the present invention.

[0028] Figure 3 This is a top view of an embodiment of the cleaning fluid holding mechanism of the present invention.

[0029] Figure 4 for Figure 3 Schematic diagram of the structure in cross section along the AA direction.

[0030] Figure 5 yes Figure 4 Enlarged schematic diagram of part B in the middle section.

[0031] Figure 6 A schematic diagram of the state structure of the cleaning fluid holding mechanism in use according to an embodiment of the present invention.

[0032] Figure 7 A schematic diagram of another state of the cleaning fluid holding mechanism embodiment of the present invention during use.

[0033] Figure 8 This is a schematic diagram of an embodiment of a cleaning mechanism for a washing and wiping vehicle.

[0034] Figure 9 For along Figure 8 Schematic diagram of the cleaning mechanism in the CC direction.

[0035] Figure 10 This is a front view of an embodiment of a car cleaning device with pressure relief function.

[0036] Figure label:

[0037] 1. Housing; 2. Car wiping mechanism; 3. Cleaning fluid holding mechanism; 4. Body; 5. Handle; 6. Water outlet pipe; 7. Water outlet outlet; 8. Water return pipe; 9. Water return inlet.

[0038] Cleaning mechanism 20, scrubbing roller 21, water-relief device 22, sealed liquid exchange zone A, clean water inlet A1, wastewater outlet A2

[0039] First interference part 200, fixing part 201, sealing part 202, rib plate 203

[0040] Pressure relief mechanism 31

[0041] Container housing 30

[0042] Pressure relief mechanism base shell 310, pre-pressure relief port 311, ball valve 312, elastic sleeve 313, limiting part 314, pressure relief channel 315, ball valve moving space 316, inclined surface 317, flat horizontal surface 318, pressure relief mechanism cover plate 319, pressure relief port 3191.

[0043] Upper housing 301 of the cleaning fluid holding mechanism, lower housing 302 of the cleaning fluid holding mechanism, ultrasonic welding layer 303, pressure relief port 3011, and snap-fit ​​interface 3021.

[0044] Pressure relief port 3011, fixing buckle groove 3021,

[0045] Interface mechanism 32, contact surface 320, suction pipe 321, suction port 3211, clean water outlet 324, sewage return port 325.

[0046] Conversion mechanism 33, cage-like support 331, isolation layer 332,

[0047] Cavity 34

[0048] Cavity 35.

[0049] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0050] The claims of the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of the present invention.

[0051] It should be understood that, in the description of the embodiments of the present invention, all directional indicating terms, such as "up," "down," "left," "right," "front," and "back," indicate the orientation or positional relationship based on the orientation and positional relationship shown in the accompanying drawings or the orientation or positional relationship commonly used when the product is in use. These terms are merely for the purpose of simplifying the description of the present invention and do not explicitly or implicitly suggest that the device, element, or component referred to must have a specific orientation or specific orientational structure, and should not be construed as a limitation of the present invention. They are only used to explain the relative positional relationships and movements between the components shown in the accompanying drawings. When this specific orientation changes, the directional indication may also change accordingly.

[0052] Furthermore, in this invention, ordinal numbers such as "first" and "second" are used for distinguishing purposes only and should not be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, the features referred to as "first" and "second" may explicitly or implicitly include at least one of those technical features. In the description of this invention, "a plurality of" means at least two, i.e., two or more, unless otherwise explicitly defined; "at least one" means one or more.

[0053] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-in" should be interpreted broadly. For example, they can refer to a relatively fixed positional relationship between components, or a physically fixed connection between components; they can be detachable connections or integral structures; they can be mechanical connections or electrical signal connections; they can be direct connections or indirect connections through intermediate media or components; they can refer to the internal communication of two elements or the interaction between two elements. Unless otherwise explicitly limited in the specification, other interpretations will not achieve the corresponding functions or effects. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0054] If the controllers or control circuits involved in this invention are conventional control technologies or units for those skilled in the art, such as the control circuits of the controllers, they can be implemented by those skilled in the art using existing methods, such as simple programming. Regarding software or programs that work with hardware to achieve control results, unless the description provides a detailed explanation of the control process of the software or programs involved, this pertains to the use of existing technology or conventional techniques for those skilled in the art. The power supply also employs existing technology in the art. Furthermore, since the main inventive aspect of this invention lies in the improvement of the mechanical device, this invention will not provide a detailed explanation of the specific circuit control relationships and circuit connections.

[0055] This invention discloses many different embodiments or examples for implementing different structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described herein. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0056] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0057] The following will describe the scheme of this application in detail with reference to the accompanying drawings.

[0058] Figures 1-7 The diagram shows a schematic representation of an embodiment of a car cleaning device with a pressure relief function.

[0059] like Figure 1As shown, the car wiping device with pressure relief function includes a car wiping mechanism 2 with a wiping roller (not shown in the figure), a cleaning fluid holding mechanism 3, a cleaning mechanism (not shown in the figure) for cleaning the car wiping mechanism, a cleaning fluid conveying mechanism (not shown in the figure) for conveying the cleaning fluid in the cleaning fluid holding mechanism to the cleaning mechanism, and a pressure relief mechanism 31 for relieving the air pressure of the cleaning fluid holding mechanism during the cleaning process.

[0060] Specifically, such as Figure 1 As shown, the car wiping device with pressure relief function includes a body 4, a housing 1 connected to the front end of the body, and a handle 5 connected to the end of the body. The cleaning mechanism is installed inside the housing. The pump (not shown in the figure) and part of the delivery pipeline (not shown in the figure) of the cleaning fluid delivery mechanism are installed inside the body. Part of the delivery pipeline of the cleaning fluid delivery mechanism and a section of the pipeline of the cleaning fluid delivery mechanism passing through the wiping roller of the cleaning mechanism are installed inside the housing. The control circuit board, battery, and display panel of the car wiping device are installed inside the handle (not shown in the figure). The body, housing, and handle are all equipped with power harnesses, signal harnesses, and connectors (not shown in the figure) that provide power or sensor signal transmission to the car wiping device. Figure 1 As shown, a cleaning fluid holding mechanism 3 is provided on the body 4. In this embodiment, the cleaning fluid holding mechanism 3 is a water tank. The cleaning fluid contained in the water tank may include clean water, cleaning fluid containing detergent, etc. The housing 1 is provided with a car wiping mechanism 2 that can perform rolling cleaning on the surface of the car. The cleaning mechanism (not shown in the figure) cleans the surface of the car wiping mechanism 2.

[0061] like Figure 2 , Figure 6 , Figure 7 As shown, the cleaning fluid holding mechanism 3 includes an interface mechanism 32 and an indented contact surface 320. A suction pipe 321 extending into the cleaning fluid holding mechanism is connected to the interface mechanism. The free end of the suction pipe extends to the end of the conversion mechanism 33. The free end of the suction pipe is provided with a suction port 3211. The interface mechanism is also provided with a clean water outlet 324 and a sewage return port 325. The clean water outlet 324 and the sewage return port 325 are each provided with a one-way valve (not shown in the figure). From the water flow direction, the direction of the one-way valve of the clean water outlet is opposite to the direction of the one-way valve of the sewage return port, which is used to control the switching between clean water and sewage. The water inlet 3211 and the clean water outlet 324 are connected. In use, the cleaning fluid delivery mechanism (not shown in the attached diagram) drives clean water to flow from the water inlet 3211 to the clean water outlet 324. The cleaning fluid in the cleaning fluid holding mechanism 3 will continuously supply the car wiping mechanism 2, thus cleaning the car wiping mechanism 2 through the flowing cleaning fluid. At the same time, the cleaned cleaning fluid is transported back to the cleaning fluid holding mechanism 3 to circulate the cleaning fluid.

[0062] like Figure 4, Figure 6 , Figure 7 As shown, the pressure relief mechanism 31 relieves the pressure of air entering during the cleaning fluid circulation process, preventing the cleaning fluid in the sealed cleaning fluid holding mechanism 3 from mixing with the air brought in through the water circulation passage, which would increase the pressure inside the cleaning fluid holding mechanism 3 and affect the cleaning fluid return efficiency after cleaning. At the same time, it can also prevent the pressure in the pipeline from increasing and being released through the car wiping mechanism 2, which would cause bubbles to form on the surface of the car wiping mechanism 2.

[0063] like Figure 3 , Figure 4 , Figure 6 , Figure 7 As shown, the pressure relief mechanism 31 includes a pressure relief port 3011 and a pressure relief channel 315 connected to the pressure relief port 3011. The pressure relief channel 315 is provided with two pre-pressure relief ports 311 respectively connected to the cleaning fluid holding mechanism and a pre-pressure relief port control component that controls one of the two pre-pressure relief ports 311 to be connected to the pressure relief port 3191 through the pressure relief channel 315.

[0064] Specifically, such as Figure 4 , Figure 5 As shown, the pre-relief port control assembly includes a relief channel 315 and two relief control switches connected to the relief channel 315. When the two relief control switches are not on the same horizontal line, one relief control switch is in the closed state and the other relief control switch is in the open state. Each relief control switch includes a body with a cavity 34. The pre-relief port 311 is located between the body and the cavity 34. A movable ball valve 312 and a limiting part 314 restricting the movement of the ball valve 312 are provided within the cavity. Since the ball valve 312 can move freely within the cavity 34, and the two relief control switches are on the same horizontal line, theoretically, when both relief control switches are parallel to the horizontal plane, both relief control switches could be in the closed state, the open state, or one closed and the other open. Since the pressure increase in the circulating cleaning container only occurs during use, and the container is in motion during this time, the ball valve 312 will be in relative motion due to inertia. It's impossible for both pressure relief control switches to remain horizontal simultaneously for an extended period. Therefore, only one of the two pressure relief control switches will be open, and the other closed. This ensures that at least one pre-pressure relief port 311 is connected to the outside of the container housing 30 via the pressure relief channel 315 and the pressure relief port 3011 during use, thus achieving pressure balance inside and outside the cavity 34.

[0065] As a further improved implementation method, such as Figure 4 , Figure 5As shown, in order to better ensure that pressure balance can be achieved even when the two pressure relief control switches are on the same horizontal plane, the bottom of the cavity is provided with an inclined surface 317 that moves the ball valve 312 toward the pre-pressure relief port 311 and a straight horizontal surface 318 connecting the bottom of the inclined surface 317 and the pre-pressure relief port 311. When the two pressure relief control switches are on the same horizontal plane, even if the ball valve 312 prevents the pre-pressure relief port 311 from being open, when the pressure inside the cavity is greater than that outside, it will be easier for the ball valve 312 to leave the closed position of the pre-pressure relief port 311, thereby achieving pressure balance.

[0066] As a further improved implementation, the pre-release port is provided with an elastic material.

[0067] As a further improved implementation, the pre-relief port can be flared, depending on the requirements.

[0068] The car wiping mechanism 2 includes a wiping roller (not shown in the figure) and a drive mechanism (not shown in the figure) for driving the wiping roller. The surface of the wiping roller is covered with a soft absorbent material. The drive mechanism includes a motor or a motor and a transmission component (not shown in the figure). The transmission component can be a conventional mechanical transmission kit such as a gear set, a belt conveyor pulley set, or a worm gear.

[0069] In this embodiment, the handle and the body can be an integral structure or a separate structure. When it is a separate structure, the handle and the body are two independent parts. When in use, the handle and the body can be connected together.

[0070] The handle 5 has a built-in battery assembly (not shown in the attached diagram) that provides power to the motor and a control circuit (not shown in the attached diagram) that enables intelligent control of the motor. When the handle and the body 4 are separate structures, the handle has pins / holes, and the body has corresponding holes / pins. Power is transmitted to the body through the cooperation of the pins and holes. Of course, in this embodiment, the electrical connection between the handle and the body is not limited to the cooperation of pins and holes; it can also be a conductive sheet or conductive ring, or other structures that can achieve conductivity.

[0071] The cleaning mechanism includes a washing groove (not shown in the figure) formed on the surface of the wiping roller. The washing groove is provided with an inlet (not shown in the figure) and an outlet (not shown in the figure). The cleaning liquid flowing at high speed through the inlet washes away the dust on the surface of the wiping roller.

[0072] The washing tank includes a squeezing strip (not shown in the figure) that interferes with the surface of the wiping roller, and a water guiding strip (not shown in the figure) that is spaced apart from the squeezing strip and contacts the surface of the wiping roller. The squeezing strip can be arranged parallel to the water guiding strip.

[0073] As needed, the washing tank is a closed structure, with the water outlet and water inlet located at opposite ends along its length.

[0074] If necessary, the cleaning mechanism may also include a partition bar (not shown in the figure) that contacts the surface of the wiping roller, and the partition bar and the water squeezing bar form a drain trough (not shown in the figure), which is connected to the outlet of the washing tank.

[0075] As a further improved implementation method, as needed, such as Figure 4 As shown, the car wiping device also includes a conversion mechanism 33 for converting the cleaning fluid recovered from the wiping roller into clean water. This conversion mechanism includes a cage-like support 331 and an isolation layer 332 that forms a relatively independent space for the cage-like support. The isolation layer has filter holes (not shown in the attached diagram). In use, as... Figure 6 , Figure 7 As shown, the cleaning fluid is continuously supplied to the cleaning mechanism through the cleaning fluid delivery mechanism, and the cleaning mechanism performs online cleaning on the car wiping mechanism. During the cleaning process, the car wiping mechanism needs to squeeze its surface to maintain the water content of the wiping roller at an appropriate humidity. During this process, the air trapped in the pores on the surface of the wiping roller will be carried into the washing tank and enter the cleaning fluid holding mechanism through the drain pipe, causing the air pressure in the cleaning fluid holding mechanism to rise. At the same time, air bubbles will form on the surface of the car wiping mechanism and escape. The pressure is relieved by the pressure relief mechanism connected to the outside of the cleaning fluid holding mechanism to avoid the phenomenon of air bubbles escaping from the car wiping mechanism and improve the water return efficiency.

[0076] like Figure 8 , Figure 9 As shown, the cleaning mechanism 20 includes a first interference portion 200 that forms a pressure against the surface of the washing roller 21. The first interference portion 200 has a fixing portion 201 and a sealing portion 202 on both sides of the circumferential direction of the washing roller 21 surface. The sealing portion 202 forms a groove (not shown in the figure) between the side opposite to the first interference portion 200 and the fixing portion 201. The groove has a V-shaped cross-section perpendicular to its length. To improve strength and stability of the sealing portion 202, a rib 203 is provided between the sealing portion 202 and the fixing portion 201 on the side opposite to the first interference portion 200. When there are multiple ribs 203, they are arranged in a parallel configuration. The sealing portion 202 extends outward to fix a water-relief device 22. The sealing portion 202 and the water-relief device 22 cooperate to form a sealed liquid exchange zone A on the surface of the washing roller 21. The fixing portion 201 can be fixed to the housing 1. The water-relief device 22 can be connected to the sealing part 202 and contact the surface of the washing roller 1 to form a water-sealed contact.

[0077] like Figure 10As shown, the cleaning fluid holding mechanism 3 can deliver clean water and collect wastewater through the interface mechanism 32. Clean water is delivered to the clean water pipe 6 through the clean water outlet 324, and wastewater is collected from the wastewater pipe 7 through the wastewater return outlet 325; combined with Figure 9 To ensure continuous exchange of fluids in the sealed liquid exchange zone A during operation, the zone can be equipped with a clean water inlet A1 connected to the outlet pipe 61 and a wastewater outlet A2 connected to the return water inlet 71. The clean water inlet can be connected to the cleaning fluid container 3 (not shown in the attached diagram) via a water pump (not shown in the diagram), and the wastewater outlet can also be connected to a wastewater container (not shown in the attached diagram) via a water pump. A conversion device (not shown in the attached diagram) can be provided between the wastewater container and the cleaning fluid container to convert wastewater into cleaning fluid, thus protecting the vehicle from continuous washing over extended periods. The cleaning fluid can include clean water, a mixture of clean water and cleaning fluid, or only cleaning fluid. The cleaning fluid inlet A1 and the wastewater outlet A2 are located at opposite ends of the sealed liquid exchange zone A.

[0078] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. Furthermore, any changes or modifications made by those skilled in the art based on the ideas of this application, and on the specific implementation methods and application scope of this application, are all within the scope of protection of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A car wiping device with pressure relief function, characterized in that, include: A cleaning fluid container for holding the cleaning fluid; The car wiping mechanism includes wiping rollers; Cleaning facilities, used for cleaning car washing equipment; The cleaning fluid delivery mechanism delivers the cleaning fluid to the cleaning unit; The pressure relief mechanism relieves the air pressure in the cleaning fluid container during the cleaning process. The pressure relief mechanism includes a pressure relief port and a pressure relief channel connected to the pressure relief port. The pressure relief channel is provided with two pre-pressure relief ports that are respectively connected to the cleaning fluid container and a pre-pressure relief port control component that controls one of the two pre-pressure relief ports through the pressure relief channel and connected to the pressure relief port. The pre-pressure relief port control component includes a pressure relief channel and two pressure relief control switches connected to the pressure relief channel.

2. The car wiping device with pressure relief function according to claim 1, characterized in that, When the two pressure relief control switches are not on the same horizontal line, one of the pressure relief control switches is in the closed state.

3. The car wiping device with pressure relief function according to claim 2, characterized in that, The pressure relief control switch includes a body with a cavity, a pre-pressure relief port located in the body and communicating with the cavity, and a movable ball valve and a limiting part that restricts the movement of the ball valve inside the cavity.

4. The car wiping device with pressure relief function according to claim 3, characterized in that, The bottom of the cavity is provided with an inclined surface that allows the ball valve to move toward the pre-pressure relief port and a straight horizontal surface that connects the bottom of the inclined surface with the pre-pressure relief port.

5. The car wiping device with pressure relief function according to claim 1, characterized in that, The pre-release port is made of elastic material.

6. The car wiping device with pressure relief function according to claim 1, characterized in that, The cleaning mechanism includes a scrubbing trough that abuts against the surface of the wiping roller, and the scrubbing trough is provided with a water inlet and a water outlet.

7. The car wiping device with pressure relief function according to claim 6, characterized in that, The washing tank is a closed structure, with the water outlet and water inlet located at opposite ends along its length.

8. The car cleaning device with pressure relief function according to claim 7, characterized in that, The scrubbing trough includes a wringing strip and a water guide strip that abut against the surface of the wiping roller.

9. The car wiping device with pressure relief function according to claim 8, characterized in that, The cleaning mechanism also includes a partition bar that contacts the surface of the wiping roller. A drain trough is formed between the partition bar and the squeezing bar, and the drain trough is connected to the outlet of the washing trough.

10. The car wiping device with pressure relief function according to claim 1, characterized in that, Cleaning solutions include water, cleaning fluid, and mixtures thereof.

11. The car wiping device with pressure relief function according to claim 1, characterized in that, The car wiping device also includes a conversion mechanism that converts the cleaning fluid recovered from the wiping rollers into clean water.

12. The car wiping device with pressure relief function according to claim 9, characterized in that, The car cleaning device also includes a conversion mechanism that converts the cleaning fluid squeezed from the surface of the wiping roller by the wringer into clean water, which is recovered from the drain trough.

13. The car wiping device with pressure relief function according to claim 11 or claim 12, characterized in that, The conversion mechanism includes a cage-like support and an isolation layer that forms a relatively independent space for the cage-like support. The isolation layer is provided with filter perforations.

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