Balanced pressure water tank and car washing device with balanced water pressure function

Abstract

A car wash device with a water pressure balancing function includes a body, a water tank, and a washing head housing. A pump and part of the delivery pipeline in the cleaning fluid delivery mechanism are installed inside the body. The water tank is a pressure-balancing tank, snapped onto the upper front side of the body, and includes a tank body and a pressure release mechanism located within the tank body. The pressure release mechanism includes a water-air separation component and a release component connected to the outside of the tank body. The washing head housing extends outward from the front of the body to engage with a wiping roller. Part of the delivery pipeline in the cleaning fluid delivery mechanism, and a section of the pipeline passing through the wiping roller, are installed inside the washing head housing. This car wash device can effectively and slowly release the pressure generated inside the water tank during vehicle washing, thus balancing the pressure inside and outside the tank.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202211255263.8 entitled "A Car Wash Device with Water Pressure Balancing Function", the contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of vehicle cleaning technology, and more particularly to a balanced pressure water tank and a car wash device with a balanced water pressure function. Background Technology

[0003] Vehicle washing usually requires continuous washing to achieve high cleaning efficiency. However, when using a scrubbing roller, the surface of which is typically made of sponge, the wastewater is collected after squeezing the roller, and the squeezed-out air is also collected, causing an increase in pressure within the liquid collection chamber. Effectively releasing this pressure becomes a problem that needs to be solved. Summary of the Invention

[0004] The main technical problem solved by this invention is to provide a balanced pressure water tank and a car wash device with a water pressure balancing function. The balanced pressure water tank can effectively and slowly release the pressure generated inside the water tank during the vehicle washing process, so that the pressure inside and outside the water tank is balanced.

[0005] To solve the above-mentioned technical problems, in a first aspect, the present invention provides a pressure-balanced water tank, comprising:

[0006] Water tank body;

[0007] The pressure relief mechanism is located inside the water tank body and includes a water-air separation component and a release component connected to the water-air separation component and communicating with the outside of the water tank body. The water-air separation component includes a water-air separation body and a separation inlet, a separation outlet, and a first water-air separation channel communicating with the separation inlet and the separation outlet. The first water-air separation channel is provided with multiple first separation chambers.

[0008] In one or more alternative embodiments, the first water-air separation channel includes multiple first separation chambers on both sides, with each first separation chamber on the same side connected to each other, and the first separation chambers on both sides being staggered.

[0009] In one or more alternative embodiments, the first separation chamber is provided with an inclined surface that is tilted at a certain angle to the pressure release direction.

[0010] In one or more alternative embodiments, the first separation chamber is provided with a baffle plate, and each baffle plate divides the first separation chamber into an air passage and a vortex branch.

[0011] In one or more alternative embodiments, a baffle is provided between the two adjacent first separation chambers.

[0012] In one or more alternative embodiments, the baffle plate forms a 30-degree angle with the first water-air separation channel.

[0013] In one or more alternative embodiments, the water-gas separation assembly further includes a second water-gas separation channel connected to the first water-gas separation channel, the second water-gas separation channel being provided with multiple turbulence chambers.

[0014] In one or more alternative embodiments, the second water-gas separation channel is arranged in parallel with the first water-gas separation channel.

[0015] In one or more alternative embodiments, the second water-air separation channel includes a vortex cavity and a second baffle plate disposed opposite to the vortex cavity to change the direction of liquid flow.

[0016] In one or more alternative embodiments, the second spoiler is arc-shaped along the direction of water-air separation.

[0017] In one or more alternative embodiments, the second water-gas separation channel is parallel to the first water-gas separation channel as a whole, and it is composed of multiple curved turbulence sections.

[0018] In one or more alternative embodiments, the pressure relief mechanism further includes a balance channel penetrating the water-gas separation body. The balance channel is parallel to and connected to the first water-gas separation channel and is composed of multiple curved turbulence sections.

[0019] In one or more alternative embodiments, the separation inlet and separation outlet are at the same end of the water-gas separation body.

[0020] In one or more optional embodiments, the water-gas separation body is provided with a first balance hole and a second balance hole connected to the balance channel. The structure of the balance channel is the same as that of the second water-gas separation channel, but the direction is opposite to that of the second water-gas separation channel.

[0021] In one or more alternative embodiments, the separation inlet and separation outlet are located at opposite ends of the water-gas separation body.

[0022] In one or more alternative embodiments, the balancing channel is actually the first segment of the entire water-gas separation path, and it merges with the first water-gas separation channel at the first balancing hole at the end of the balancing channel.

[0023] In one or more alternative embodiments, the release component includes a pipe with one end connected to a water-air separation component and the other end connected to a pressure relief component. The pressure relief component has a pressure relief chamber with a pressure relief opening. The pressure relief opening has two elastic plates with an opening between the elastic plates that remains closed when no pressure is released.

[0024] In one or more alternative embodiments, the two elastic sheets are arranged at an angle, and the gap between the two elastic sheets gradually decreases from the outside to the inside, and they contact each other at the ends.

[0025] In one or more alternative embodiments, the opening is elongated.

[0026] In one or more alternative embodiments, the water-gas separation component generates multiple vortices in the liquid through the first water-gas separation channel in the separation direction to separate water and gas, and the separated gas is discharged to the outside of the water tank body through the release component.

[0027] In one or more alternative embodiments, the distance between each pair of mutually offset and opposite first separation chambers gradually increases in the direction of water-air separation.

[0028] Secondly, the present invention provides a car wash device with a water pressure balancing function, characterized in that it comprises:

[0029] The balanced pressure water tank as described in the first aspect;

[0030] The pump and some of the delivery pipelines in the cleaning fluid delivery mechanism are installed inside the machine body;

[0031] The cleaning head housing extends outward from the front of the machine body to engage with the wiping roller; a portion of the conveying pipeline in the cleaning fluid conveying mechanism and a section of the pipeline in the cleaning fluid conveying mechanism that passes through the wiping roller are installed inside the cleaning head housing.

[0032] In one or more optional embodiments, the cleaning head housing is provided with a clean water output channel component and a wastewater return channel component at both ends. The pump includes a pump outlet and a pump return outlet. One end of the water tank outlet pipe is connected to the clean water output interface of the water tank, and the other end is connected to the pump return outlet. One end of the clean water pipe is connected to the pump outlet, and the other end is connected to the input interface of the clean water output channel component. One end of the wastewater pipe is connected to the output interface of the wastewater return channel component, and the other end is connected to the wastewater input interface of the water tank.

[0033] In one or more alternative embodiments, the car wash device with water pressure balancing function further includes:

[0034] The handle connects to the end of the body.

[0035] In one or more alternative embodiments, a handle locking mechanism is provided at one end of the body connected to the handle, which tightly engages with the handle. The handle locking mechanism includes a locking button mechanism and a spring with one end abutting against the locking button mechanism and the other end abutting against the body. The locking button mechanism includes a button structure that is restricted to vertical movement only on the surface of the body and a barb extending from the button structure toward the handle. The spring presses against the locking button mechanism to make the barb tightly engage the handle.

[0036] In one or more alternative embodiments, a water tank locking mechanism is provided on the upper middle part of the body that abuts against one end of the water tank. The water tank locking mechanism includes a locking button that is restricted to vertical movement only on the upper surface of the body, a locking tongue that is restricted to horizontal unidirectional movement only, and a spring that abuts against the locking tongue at one end and against the body at the other end. The locking tongue can be retracted backward after the locking button is pressed. At this time, the user can remove the water tank and install it back on the body. When the locking button is released, the locking tongue extends under the action of the spring to lock the water tank.

[0037] In one or more alternative embodiments, the handle is equipped with a control circuit board, a battery, and a display panel. The body, the washing head housing, and the handle are all provided with power transmission harnesses, signal harnesses, and connectors that provide power or sensor signals to the car wash device.

[0038] In one or more alternative embodiments, the body and the cleaning head housing are further provided with a water tank outlet pipe, a clean water pipe and a wastewater pipe.

[0039] In one or more alternative embodiments, the car wash device with water pressure balancing function further includes:

[0040] The cleaning mechanism is installed inside the cleaning head housing.

[0041] The balanced pressure water tank provided by this invention is installed on a car wash device with a water pressure balancing function. The balanced pressure water tank includes a tank body and a pressure release mechanism disposed within the tank body. The pressure release mechanism includes a water-air separation component and a release component connected to the water-air separation component and communicating with the outside of the tank body. The water-air separation component includes a water-air separation body, a separation inlet and a separation outlet disposed within the water-air separation body, and a first water-air separation channel communicating with the separation inlet and the separation outlet. The first water-air separation channel has multiple separation chambers. Because the water-air separation component generates multiple eddies in the liquid in the separation direction through the first water-air separation channel, it affects the liquid flow in the separation direction but does not affect the passage of gas. Therefore, water and gas can be separated. The separated gas is discharged to the outside of the tank body through the release component, effectively and slowly releasing the pressure generated inside the tank during vehicle washing, thus balancing the pressure inside and outside the tank.

[0042] The present invention provides a car wash device with a water pressure balancing function, comprising a pressure balancing water tank. The pressure balancing water tank includes a tank body and a pressure release mechanism disposed within the tank body. The pressure release mechanism includes a water-air separation component and a release component connected to the water-air separation component and communicating with the outside of the tank body. The water-air separation component includes a water-air separation body, a separation inlet and a separation outlet disposed within the water-air separation body, and a first water-air separation channel communicating with the separation inlet and the separation outlet. The first water-air separation channel has multiple separation chambers. Because the water-air separation component generates multiple eddies in the liquid in the separation direction through the first water-air separation channel, it affects the liquid flow in the separation direction but does not affect the passage of gas. Therefore, water and gas can be separated. The separated gas is discharged to the outside of the tank body through the release component, effectively and slowly releasing the pressure generated inside the tank during vehicle washing, thus balancing the pressure inside and outside the tank. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the description only show some embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of an embodiment of a car wash device with a water pressure balancing function.

[0045] Figure 2 This is a cross-sectional view along the length of an embodiment of a car wash device with a water pressure balancing function.

[0046] Figure 3 This is a schematic diagram of the internal structure of a car wash device with a water pressure balancing function.

[0047] Figure 4 This is a schematic diagram of an embodiment of a pressure balancing water tank.

[0048] Figure 5 This is a schematic diagram of another embodiment of the pressure balancing water tank.

[0049] Figure 6 This is an exploded view of the overall structure of an embodiment of a pressure balancing water tank.

[0050] Figure 7 for Figure 5 Schematic diagram of the cross-section along the AA direction.

[0051] Figure 8 This is a three-dimensional schematic diagram of the pressure balance structure.

[0052] Figure 9 This is a schematic diagram of the orthographic projection of the pressure balance structure.

[0053] Figure 10 This is a three-dimensional schematic diagram of another embodiment of the pressure balance structure.

[0054] Figure 11 This is a schematic diagram of another embodiment of the pressure balance structure.

[0055] Figure 12 This is a schematic diagram illustrating the usage state of a pressure-balanced water tank when it contains liquid.

[0056] Figure 13 This is a schematic diagram illustrating another usage state of the pressure-balanced water tank when it contains liquid.

[0057] Figure 14 for Figure 2 Enlarged view of region A in the middle.

[0058] Figure 15 for Figure 2 Enlarged view of region B in the middle.

[0059] Figure label:

[0060] 2. Wiping roller; 3. Cleaning head housing; 6. Control circuit board; 7. Battery; 8. Handle;

[0061] Body 4, handle locking mechanism 41, locking button mechanism 411, spring 412, water tank locking mechanism 42, locking button 421, locking tongue 422, spring 423;

[0062] Pump 5, Pump outlet 51, Pump return outlet 52, Water tank outlet pipe 53, Clean water pipe 54, Sewage pipe 55, Clean water output channel component 56, Sewage return channel component 57;

[0063] Balanced pressure water tank 1;

[0064] Water tank body 20;

[0065] Pressure relief mechanism 30, relief component 301, pressure relief part 3010, pressure relief chamber 3011, pressure relief opening 203A, elastic sheet 203, pipeline 302, water-gas separation component 303, water-gas separation body 3030, separation outlet 3031, separation inlet 3032, first water-gas separation channel A, first separation chamber 3036, first baffle 3035, vortex branch 3037, inclined surface 3040, flow deflector 3041, second water-gas separation channel B, second separation chamber 3043, second baffle 3042, balance channel C, first balance hole 3034, second balance hole 3033;

[0066] 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

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] like Figures 1-15 As shown, the present invention provides an embodiment of a car wash device with a water pressure balancing function.

[0075] The car wash device with water pressure balancing function includes a pressure balancing water tank 1, which includes a water tank body 20 and a pressure release mechanism 30 disposed in the water tank body. The pressure release mechanism 30 includes a water-air separation component 303 and a release component 301 connected to the water-air separation component 303 and communicating with the outside of the water tank body. The water-air separation component 303 includes a water-air separation body 3030 and a separation inlet 3032 and a separation outlet 3031 disposed in the water-air separation body 3030, as well as a first water-air separation channel A communicating with the separation inlet 3032 and the separation outlet 3031. The first water-air separation channel A is provided with a plurality of first separation chambers 3036.

[0076] Specifically, such as Figure 1 , Figure 2As shown, the car wash device with balanced water pressure function includes a body 4, a water tank 1 that snaps onto the upper front side of the body, a cleaning head housing 3 that extends outward from the front of the body to snap onto the wiping roller 2, and a handle 8 connected to the end of the body. The cleaning mechanism (not shown in the figure) is installed inside the cleaning head housing 3. The pump 5 and part of the delivery pipeline (not shown in the figure) in the cleaning fluid delivery mechanism are installed inside the body. Part of the delivery pipeline in the cleaning fluid delivery mechanism and a section of the pipeline in the cleaning fluid delivery mechanism that passes through the wiping roller 2 are installed inside the cleaning head housing 3. The control circuit board 6, battery 7, and display panel (not shown in the figure) of the handheld car wash machine are installed inside the handle 8. The body, cleaning head 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 wash device.

[0077] Specifically, such as Figure 1 , Figure 3 , Figure 14 , Figure 15 As shown, a handle locking mechanism 41 is provided on one end of the body 4 that is connected to the handle 8, which tightly engages with the handle 8. The mechanism includes a locking button mechanism 411 and a spring 412, one end of which abuts against the locking button mechanism 411 and the other end of which abuts against the body 4. The locking button mechanism 411 includes a button structure (not shown in the figure) that is restricted to vertical movement only on the upper surface of the body 4 and a barb portion (not shown in the figure) that extends from the button structure toward the handle. The spring 412 presses against the locking button mechanism 411 to make the barb portion tightly engage the handle 8. A water tank locking mechanism 42 is provided on the upper surface of the middle part of the body 4 that abuts against one end of the water tank 1. It includes a locking button 421 that is restricted to vertical movement only on the upper surface of the body 4, a locking tongue 422 that is restricted to horizontal unidirectional movement only, and a spring 423 that abuts against the locking tongue 422 at one end and against the body 4 at the other end. The locking tongue 422 can be retracted backward after the locking button 421 is pressed, which makes it convenient for the user to remove the water tank 1. After the water tank 1 is installed back into the body 4, when the locking button 421 is released, the locking tongue 422 extends under the action of the spring 423 and can tightly lock the water tank 1.

[0078] Specifically, such as Figure 3As shown, the machine body 4 and the cleaning head housing 3 are also equipped with a water tank outlet pipe 53, a clean water pipe 54, and a sewage pipe 55. The cleaning head housing 3 is equipped with a clean water output channel component 56 and a sewage return channel component 57 at both ends. The pump 5 includes a pump outlet 51 and a pump return port 52. One end of the water tank outlet pipe 53 is connected to the clean water output interface (not shown in the figure) of the water tank 1, and the other end is connected to the pump return port 52. One end of the clean water pipe 54 is connected to the pump outlet 51, and the other end is connected to the input interface (not shown in the figure) of the clean water output channel component 56. One end of the sewage pipe 55 is connected to the output interface (not shown in the figure) of the sewage return channel component 57, and the other end is connected to the sewage input interface (not shown in the figure) of the water tank 1.

[0079] Specifically, the car wash device with water pressure balancing function includes other structures. Other undescribed structures can be implemented using existing technologies, and these structures are not improvements of this invention, so they will not be described in detail here.

[0080] like Figures 6-13 As shown, the water-air separation component 303 is used to separate liquid from air, wherein the liquid includes water, etc.

[0081] like Figure 8 , Figure 9 As shown, first separation chambers 3036 are respectively provided on both sides of the first water-gas separation channel A. That is, the first water-gas separation channel A includes multiple first separation chambers 3036 on both sides, with each separation chamber on the same side connected to each other, and the first separation chambers 3036 on opposite sides staggered. Each first separation chamber 3036 is provided with an inclined surface 3040 at a certain angle to the pressure release direction, so that the distance between two staggered and opposite first separation chambers 3036 gradually increases in the water-gas separation direction, which facilitates the formation of vortices in the two first separation chambers and has a hindering effect on liquid flow.

[0082] To better influence liquid flow in the direction of water-gas separation without affecting gas flow, a first baffle 3035 can be provided in the first separation chamber 3036. Each first baffle 3035 divides the first separation chamber 3036 into a gas path (not shown in the attached figure) and a vortex branch 3037. The vortex branch 3037 generates a turbulent vortex for liquid flow, while gas passes through normally.

[0083] As a feasible implementation method, in order to better form multiple intersecting turbulent vortices in the first water-air separation channel A, each first turbulence plate is at a 30-degree angle to the water-air separation channel.

[0084] like Figure 8 , Figure 9As shown, the bottom of each first separation chamber 3036 is designed with an arc-shaped surface to facilitate vortex formation. Simultaneously, a baffle 3041 is provided in each first separation chamber 3036. This baffle 3041 is located between two adjacent first separation chambers 3036, specifically the bottom of the upper first separation chamber 3036 and the opening of the lower first separation chamber 3036. This allows the turbulent vortex formed in the upper first separation chamber 3036 to affect the flow of liquid entering the opening of the lower first separation chamber 3036, thereby preventing or reducing liquid movement along the water-air channel. Therefore, the longer the first water-air separation channel A of the water-air separation assembly 303 with this structure, the better the separation effect.

[0085] like Figure 8 , Figure 9 As shown, the water-gas separation assembly 303 further includes a second water-gas separation channel B connected to the first water-gas separation channel A in the water-gas separation body 3030. The second water-gas separation channel B has multiple second separation chambers 3043. The second water-gas separation channel B is connected to the first water-gas separation channel A and is arranged parallel to it overall. The second water-gas separation channel B includes second separation chambers 3043 and a second baffle plate 3042, which is disposed opposite to the second separation chambers 3043 to change the liquid flow direction. The second baffle plate 3042 is arc-shaped, pointing towards the second separation chambers 3043 along the water-gas separation direction, and can generate a turbulent flow effect on the liquid entering the second water-gas separation channel B. The second water-gas separation channel B consists of multiple curved baffle sections (not shown in the attached figure).

[0086] As needed, such as Figure 8 , Figure 9 As shown, the pressure relief mechanism also includes a balance channel C penetrating the water-gas separation body 3030. Specifically, the water-gas separation body 3030 is provided with a first balance hole 3034 and a second balance hole 3033 connected to the balance channel C. The balance channel C is parallel to the first water-gas separation channel A and consists of multiple curved turbulence sections. Its structure is the same as the second water-gas separation channel B, but its direction is opposite to that of the second water-gas separation channel B.

[0087] As needed, such as Figure 8 , Figure 9 As shown, the separation inlet 3032 and the separation outlet 3031 are at the same end of the water-gas separation body 3030, which allows for better space to extend the length of the first water-gas separation channel A and / or the second water-gas separation channel B, thereby achieving a better separation effect.

[0088] As a possible implementation method, such as Figure 10 , Figure 11As shown, the separation inlet 3032 and separation outlet 3031 are located at opposite ends of the water-gas separation body 3030. At this time, the balance channel C is actually the first segment of the entire water-gas separation path. The balance channel C is parallel to the first water-gas separation channel A. It merges with the first water-gas separation channel A at the first balance hole 3034 at the end of the balance channel C. It is composed of multiple curved turbulence sections. Its structure is the same as that of the second water-gas separation channel B, but its direction is opposite to that of the second water-gas separation channel B. This allows for better space to extend the length of the first water-gas separation channel A and / or the second water-gas separation channel B, thereby achieving a better separation effect.

[0089] like Figure 6 , Figure 7 As shown, the release component 301 includes a pipe 302 connected at one end to the water-air separation component 303, and the other end of the pipe 302 connected to the pressure relief component 3010. The pressure relief component 3010 is provided with a pressure relief chamber 3011, and the pressure relief chamber 3011 is provided with a pressure relief opening 203A. The pressure relief opening 203A is provided with two elastic plates 203, and the pressure relief opening 203A is provided between the elastic plates 203 to remain closed when no pressure is released.

[0090] As needed, the two elastic plates 203 are inclined, and the gap between the two elastic plates 203 gradually decreases from the outside to the inside, with the ends of the two elastic plates in contact. The opening 203A is elongated, so that the opening 203A is in a closed state when the pressure is not released.

[0091] Specifically, such as Figure 12 As shown, when the inlet / outlet mechanism 10 of the balanced pressure water tank 1 is tilted downwards, a portion of the water-air separation component 303 on the side away from the inlet / outlet mechanism 10 is above the liquid surface H. Regardless of whether the opening of the suction pipe 106 is always below the liquid surface H, the balanced pressure water tank 1 still has the ability to release pressure to the outside of the pressure relief water tank device and also has the ability to continuously output clean water. When the inlet of the suction pipe 106 is below the liquid surface H, the suction pipe 106 can naturally achieve the function of "discharging water". When the inlet of the suction pipe 106 is above the liquid surface H, the vent hole (not shown in the figure) of the inlet / outlet mechanism 10 is lower than the liquid surface H and is only a very small bypass branch of the water outlet channel. The bypass branch of the vent hole can achieve the function of "discharging water" under the pressure of the liquid surface H. At the same time, due to the pressure difference between the inside and outside of the balanced pressure tank 1, the balanced pressure tank 1 used in this manner has the ability to both supply water to the outside and release pressure to the outside.

[0092] Specifically, such as Figure 13As shown, when the inlet / outlet mechanism 10 of the balanced pressure water tank 1 is tilted upwards, a portion of the water-air separation component 303 is located above the liquid surface H on the side closest to the inlet / outlet mechanism 10. At this time, the opening of the suction pipe 106 is lower than the liquid surface H. Under the combined action of water pressure and air pressure, the pressure passes through the water-air separation component 303 and acts directly on the release component 301 of the balanced pressure water tank 1 along the pressure relief pipe. The release component 301 can specifically be a one-way valve. Due to the one-way conduction function of the one-way valve, the one-way valve is compacted and closed under the combined action of water pressure and air pressure. The vent of the inlet / outlet mechanism 10 is higher than the liquid surface H and is only a very small bypass branch of the water outlet channel. The vent is connected to the outside atmosphere. A detour structure (not shown in the attached figure) is provided before the vent to block the water flow to the bypass branch of the vent. Simply put, the bypass branch of the vent, which is connected to the outside atmosphere, can achieve the effect of "breathable but not water-permeable". At this time, the bypass branch of the vent, which connects to the outside atmosphere, has the ability to release pressure to the outside of the water supply device. Simultaneously, due to the pressure difference between the inside and outside of the water tank, and because the suction pipe 106 always has an inlet and / or suction hole below the liquid level H, the clean water output component can continuously output clean water. The balanced pressure water tank 1, used in this configuration, has the ability to release pressure to the outside of the tank and to continuously output clean water. Of course, when the liquid level H is lower than the inlet of the suction pipe 106, the balanced pressure water tank 1 will naturally be unable to continuously output clean water, at which point the user is prompted to add clean water to the balanced pressure water tank 1 to continue using the cleaner.

[0093] Because the water-air separation component generates multiple eddies in the liquid through the first water-air separation channel in the separation direction, it affects the flow of the liquid in the separation direction, but does not affect the passage of gas. Thus, water and gas can be separated. The separated gas is discharged to the outside of the water tank body through the release component, effectively and slowly releasing the pressure generated inside the water tank during the vehicle washing process, so as to balance the pressure inside and outside the water tank.

[0094] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A balanced pressure water tank, characterized in that, include: Water tank body; The pressure relief mechanism is located inside the water tank body and includes a water-air separation component and a release component connected to the water-air separation component and communicating with the outside of the water tank body. The water-air separation component includes a water-air separation body and a separation inlet, a separation outlet, and a first water-air separation channel communicating with the separation inlet and the separation outlet. The first water-air separation channel is provided with multiple first separation chambers. Preferably, the first water-gas separation channel includes multiple first separation chambers on both sides, with each first separation chamber on the same side connected to each other, and the first separation chambers on both sides being staggered.

2. The balanced pressure water tank as described in claim 1, characterized in that, The first separation chamber is provided with inclined surfaces that are tilted at a certain angle to the pressure release direction.

3. The balanced pressure water tank as described in claim 1, characterized in that, Each of the first separation chambers is equipped with a baffle plate, and each baffle plate divides the first separation chamber into an air path and a vortex branch.

4. The balanced pressure water tank as described in claim 1, characterized in that, A baffle is provided between the two adjacent first separation chambers.

5. The balanced pressure water tank as described in claim 3, characterized in that, The spoiler forms a 30-degree angle with the first water-air separation channel.

6. The balanced pressure water tank as described in claim 1, characterized in that, The water-gas separation assembly also includes a second water-gas separation channel connected to the first water-gas separation channel, and the second water-gas separation channel is provided with multiple turbulence chambers; Preferably, the second water-gas separation channel is arranged in parallel with the first water-gas separation channel.

7. The balanced pressure water tank as described in claim 6, characterized in that, The second water-air separation channel includes a vortex cavity and a second baffle plate that is disposed opposite to the vortex cavity to change the liquid flow direction; Preferably, the second spoiler is arc-shaped along the direction of water-air separation; Preferably, the second water-gas separation channel is parallel to the first water-gas separation channel as a whole, and it is composed of multiple curved turbulence sections.

8. The balanced pressure water tank as described in claim 1, characterized in that, The pressure relief mechanism also includes a balance channel that runs through the water-gas separation body. The balance channel is parallel to and connected to the first water-gas separation channel and is composed of multiple curved turbulence sections. Preferably, the separation inlet and separation outlet are at the same end of the water-gas separation body.

9. The balanced pressure water tank as described in claim 8, characterized in that, The water-gas separator body is provided with a first balance hole and a second balance hole connected to the balance channel. The structure of the balance channel is the same as that of the second water-gas separation channel, but the direction is opposite to that of the second water-gas separation channel. Preferably, the separation inlet and separation outlet are located at opposite ends of the water-gas separation body; Preferably, the balancing channel is actually the first section of the entire water-gas separation path, and it merges with the first water-gas separation channel at the first balancing hole at the end of the balancing channel.

10. The balanced pressure water tank as described in claim 1, characterized in that, The release assembly includes a pipe connected at one end to a water-air separation assembly and at the other end to a pressure relief component. The pressure relief component is provided with a pressure relief chamber and a pressure relief opening. The pressure relief opening is provided with two elastic plates, and there is an opening between the elastic plates that remains closed when no pressure is released. Preferably, the two elastic sheets are inclined, and the gap between the two elastic sheets gradually decreases from the outside to the inside, and they contact each other at the ends. Preferably, the opening is elongated.

11. The balanced pressure water tank as described in claim 1, characterized in that, The water-gas separation component generates multiple eddies in the liquid through the first water-gas separation channel in the separation direction, thereby separating the water and gas. The separated gas is discharged to the outside of the water tank body through the release component.

12. The balanced pressure water tank as described in claim 1, characterized in that, The distance between each pair of offset and opposite first separation chambers gradually increases in the direction of water-gas separation.

13. A car wash device with a water pressure balancing function, characterized in that, include: The balanced pressure water tank as described in any one of claims 1-12; The pump and some of the delivery pipelines in the cleaning fluid delivery mechanism are installed inside the machine body; The cleaning head housing extends outward from the front end of the machine body to engage with the wiping roller; a portion of the conveying pipeline in the cleaning fluid conveying mechanism and a section of the pipeline in the cleaning fluid conveying mechanism that passes through the wiping roller are installed inside the cleaning head housing; Preferably, the cleaning head housing is provided with a clean water output channel component and a wastewater return channel component at both ends. The pump includes a pump outlet and a pump return port. One end of the water tank outlet pipe is connected to the clean water output interface of the water tank, and the other end is connected to the pump return port. One end of the clean water pipe is connected to the pump outlet, and the other end is connected to the input interface of the clean water output channel component. One end of the wastewater pipe is connected to the output interface of the wastewater return channel component, and the other end is connected to the wastewater input interface of the water tank.

14. The car wash device with water pressure balancing function as described in claim 13, characterized in that, Also includes: The handle connects to the end of the device. Preferably, the end of the device body connected to the handle is provided with a handle locking mechanism that tightly engages the handle. The handle locking mechanism includes a locking button mechanism and a spring that abuts against the locking button mechanism at one end and against the device body at the other end. The locking button mechanism includes a button structure that is restricted to vertical movement only on the surface of the device body and a barb extending from the button structure toward the handle. The spring presses against the locking button mechanism to make the barb tightly engage the handle. Preferably, the upper surface of the middle part of the body that abuts against one end of the water tank is also provided with a water tank locking mechanism. The water tank locking mechanism includes a locking button that is restricted to vertical movement only on the upper surface of the body, a locking tongue that is restricted to horizontal unidirectional movement only, and a spring that abuts against the locking tongue at one end and against the body at the other end. The locking tongue can be retracted backward after the locking button is pressed. At this time, the user can remove the water tank and install it back into the body. When the locking button is released, the locking tongue extends under the action of the spring to lock the water tank.

15. The car wash device with water pressure balancing function as described in claim 14, characterized in that, The handle contains a control circuit board, battery, and display panel. The body, washing head housing, and handle are all equipped with power transmission harnesses, signal harnesses, and connectors that provide power or sensor signals to the car wash device.

16. The car wash device with water pressure balancing function as described in claim 13, characterized in that, The machine body and the cleaning head housing are also equipped with a water tank outlet pipe, a clean water pipe and a wastewater pipe; Alternatively, car wash units with water pressure balancing capabilities may also include: The cleaning mechanism is installed inside the cleaning head housing.

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