Automobile washer with backflow prevention function

Abstract

The utility model discloses an automobile washer with a backflow prevention function, and relates to the field of automobile washers. The automobile washer with the backflow prevention function comprises a washer unit and a backflow prevention unit. The backflow preventing unit is composed of a sleeve, a valve seat, a movable disc, a connecting rod, a valve plate, a spring and a collecting tank. The washer unit comprises a water tank, a connecting pipe, a water pump and an output pipe. The two ends of the sleeve are communicated with the connecting pipe and the output pipe respectively. According to the automobile washer with the backflow prevention function, through the synergistic effect of the valve seat, the movable disc, the valve plate and the spring, when the washer works normally, water flow pushes the movable disc and the valve plate to move, and the water flow smoothly passes through the washer; when the automobile washer stops working, the elastic force of the spring enables the valve plate to abut against the valve seat rapidly and tightly, washing liquid is prevented from flowing back, pollution to other parts in a system caused by the flowing-back liquid is effectively avoided, cleanliness of the washing liquid is guaranteed, and the overall performance of the automobile washer is improved.

Description

Technical Field

[0001] This utility model relates to the field of car washer technology, specifically a car washer with anti-backflow function. Background Technology

[0002] During the use of a car, the car washer is an important component to ensure the driver's clear vision. Its main function is to spray washer fluid onto the windshield to remove dust, stains and other impurities from the glass.

[0003] However, existing car washers have some problems in practical use, the most prominent being the issue of washer fluid backflow. When the car washer stops working, due to factors such as pressure changes within the system, the washer fluid can flow back from the output end into the water tank or other components. This backflowing washer fluid carries impurities, which contaminate the washer fluid in the water tank, affecting its cleaning effectiveness. Long-term use can also damage delicate internal components of the washer, such as the water pump, reducing the car washer's lifespan, increasing maintenance costs, and causing inconvenience to users.

[0004] Therefore, developing a car washer with anti-backflow function that can effectively solve the above problems is of great practical significance. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a car washer with an anti-backflow function. This solves the problem that in some car washers, when not in use, the washing liquid can flow back from the output end into the water tank or other components due to factors such as pressure changes within the system. The impurities carried by the backflowing washing liquid can contaminate the washing liquid in the water tank, affecting its cleaning effect. Long-term use can also damage the delicate internal components of the washer, reducing its lifespan, increasing maintenance costs, and causing inconvenience to users.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a car washer with anti-backflow function includes a washer unit, and the washer unit is provided with an anti-backflow unit;

[0007] The backflow prevention unit includes:

[0008] casing;

[0009] Valve seat, which is fixedly connected inside the sleeve;

[0010] A movable disc is disposed on one side of the valve seat and is slidably connected inside the sleeve;

[0011] A connecting rod, one end of which is fixedly connected to the movable disk;

[0012] A valve plate, which is fixedly connected to the other end of the connecting rod, and the valve plate moves against the valve seat;

[0013] A retraction spring is disposed between the movable disk and one side wall of the sleeve.

[0014] A collection tank is disposed at the bottom of the casing.

[0015] Preferably, the washing unit includes:

[0016] Water tank;

[0017] A connecting pipe, one end of which is connected to the water tank;

[0018] A water pump, wherein the water pump is connected to the other end of a connecting pipe;

[0019] An output pipe, one end of which is connected to a water pump.

[0020] Preferably, one end of the sleeve is provided with a water inlet, which is connected to the connecting pipe.

[0021] Preferably, the other end of the sleeve is provided with a water outlet, which is connected to the output pipe.

[0022] Preferably, the bottom of the sleeve is provided with a drain port, and a drain pipe is fixedly connected to the bottom of the drain port, and the drain pipe is connected to the collection tank.

[0023] Preferably, the movable disk has openings equidistantly spaced around its circumference.

[0024] Preferably, one end of the contraction spring is fixedly connected to the inner wall of the sleeve, and the other end of the contraction spring is fixedly connected to the movable disk.

[0025] Its beneficial effects are as follows:

[0026] This car washer with anti-backflow function works in concert with a valve seat, moving disc, valve plate, and spring. When the washer is working normally, the water flow pushes the moving disc and valve plate, allowing water to flow smoothly. When the washer stops working, the spring force causes the valve plate to quickly and tightly abut against the valve seat, preventing the wash liquid from flowing back. This effectively avoids backflow liquid contaminating other components in the system, ensuring the cleanliness of the wash liquid and improving the overall performance of the car washer. Furthermore, the collection tank at the bottom of the casing can collect a small amount of backflow liquid, preventing it from flowing freely and damaging other internal car components. It also facilitates the centralized collection of backflow liquid, further improving the convenience and safety of the car washer. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the washing unit structure of this utility model;

[0030] Figure 3 This is a cross-sectional schematic diagram of the anti-backflow unit of this utility model;

[0031] Figure 4 This is a schematic diagram of the movable disc, valve plate, and spring structure of this utility model.

[0032] In the diagram: 1. Washer unit; 11. Water tank; 12. Connecting pipe; 13. Water pump; 14. Output pipe; 2. Anti-backflow unit; 21. Sleeve; 211. Inlet; 212. Outlet; 213. Drain; 22. Valve seat; 23. Moving disc; 231. Through port; 24. Connecting rod; 25. Valve plate; 26. Contraction spring; 27. Collection tank. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0035] This utility model discloses a car washer with anti-backflow function, according to the attached... Figure 1-3 As shown, it includes a washing unit 1, and the washing unit 1 is provided with an anti-backflow unit 2;

[0036] Anti-backflow unit 2 includes:

[0037] Sleeve 21;

[0038] Valve seat 22 is fixedly connected inside sleeve 21;

[0039] The movable disc 23 is disposed on one side of the valve seat 22 and is slidably connected inside the sleeve 21.

[0040] Connecting rod 24, one end of which is fixedly connected to movable disk 23;

[0041] Valve plate 25 is fixedly connected to the other end of connecting rod 24, and valve plate 25 moves against valve seat 22;

[0042] A retraction spring 26 is disposed between the movable disk 23 and one side wall of the sleeve 21.

[0043] A collection tank 27 is located at the bottom of the sleeve 21. Through the coordinated action of the valve seat 22, the moving disc 23, the valve plate 25, and the contraction spring 26, when the washer is working normally, the water flow pushes the moving disc 23 and the valve plate 25 to move, allowing the water to flow smoothly. When the washer stops working, the elasticity of the contraction spring 26 causes the valve plate 25 to quickly and tightly abut against the valve seat 22, preventing the washing liquid from flowing back. This effectively avoids the backflow liquid from contaminating other components in the system, ensuring the cleanliness of the washing liquid and improving the overall performance of the car washer. Furthermore, the collection tank 27 at the bottom of the sleeve 21 can collect a small amount of backflow liquid, preventing the liquid from flowing randomly and damaging other components inside the car. It also facilitates the centralized collection of backflow liquid, further improving the convenience and safety of the car washer.

[0044] According to the appendix Figure 1-2 As shown, the washing unit 1 further includes:

[0045] Water tank 11;

[0046] Connecting pipe 12, one end of which is connected to water tank 11;

[0047] Water pump 13 is connected to the other end of connecting pipe 12;

[0048] Output pipe 14, one end of which is connected to water pump 13.

[0049] According to the appendix Figure 1-3 As shown, further, one end of the sleeve 21 is provided with a water inlet 211, which is connected to the connecting pipe 12.

[0050] According to the appendix Figure 1-3 As shown, the other end of the sleeve 21 is provided with a water outlet 212, which is connected to the output pipe 14.

[0051] According to the appendix Figure 1-3As shown, further, a drain port 213 is provided at the bottom of the sleeve 21, and a drain pipe is fixedly connected to the bottom of the drain port 213. The drain pipe is connected to the collection tank 27, and a valve is provided on the drain pipe to control the return liquid of the sleeve 21 to enter the collection tank 27.

[0052] According to the appendix Figure 1-4 As shown, further, the movable disk 23 has openings 231 at equal intervals around its circumference.

[0053] According to the appendix Figure 1-4 As shown, one end of the contraction spring 26 is fixedly connected to the inner wall of the sleeve 21, and the other end of the contraction spring 26 is fixedly connected to the movable disk 23.

[0054] Working principle:

[0055] When the car washer is started, the water pump 13 begins to work, drawing the washing liquid from the water tank 11 into the sleeve 21 through the connecting pipe 12. After the water enters the sleeve 21, it exerts pressure on the moving disc 23, pushing it to slide towards the outlet 212 against the elastic force of the contraction spring 26. Since the connecting rod 24 is fixedly connected to the moving disc 23, and the valve plate 25 is fixedly connected to the other end of the connecting rod 24, the movement of the moving disc 23 will cause the valve plate 25 to move together, separating it from the valve seat 22. At this time, the washing liquid can flow from the inlet 211 to the outlet 212 through the opening 231 on the moving disc 23 and the gap between the valve seat 22 and the valve plate 25, and then be sprayed onto the windshield through the output pipe 14, thus achieving the washing function.

[0056] When the car washer stops working, the water pump 13 stops operating, and the water pressure in the sleeve 21 gradually decreases. At this time, the contraction spring 26 begins to return to its original shape under its own elastic force, pushing the moving disc 23 to slide closer to the inlet 211, which in turn moves the valve plate 25 towards the valve seat 22 until the valve plate 25 and the valve seat 22 are tightly pressed together, sealing the water flow channel. In this way, even if there are pressure changes or other factors that may cause liquid backflow in the sleeve 21, the washing liquid cannot flow back to the water tank 11 or other components due to the tight seal between the valve plate 25 and the valve seat 22. At the same time, if a small amount of liquid flows back, it will flow into the collection tank 27 through the drain port 213 at the bottom of the sleeve 21 and the drain pipe for collection, preventing the liquid from affecting other components.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A car washer with backflow prevention function, comprising a washer unit (1), characterized in that, The washing unit (1) is provided with an anti-backflow unit (2); The anti-backflow unit (2) includes: Sleeve (21); Valve seat (22), which is fixedly connected inside sleeve (21); The movable disk (23) is disposed on one side of the valve seat (22) and is slidably connected inside the sleeve (21); A connecting rod (24), one end of which is fixedly connected to a movable disk (23); Valve plate (25), which is fixedly connected to the other end of the connecting rod (24), and the valve plate (25) and the valve seat (22) move against each other; A retraction spring (26) is disposed between the movable disk (23) and one side wall of the sleeve (21); Collection tank (27) is located at the bottom of sleeve (21).

2. The car washer with backflow prevention function according to claim 1, characterized in that, The washing unit (1) includes: Water tank (11); A connecting pipe (12) is provided, one end of which is connected to a water tank (11); Water pump (13), the water pump (13) is connected to the other end of the connecting pipe (12); Output pipe (14), one end of which is connected to water pump (13).

3. The car washer according to claim 2, wherein One end of the sleeve (21) is provided with a water inlet (211), which is connected to the connecting pipe (12).

4. The car washer with backflow prevention function according to claim 2, characterized in that, The other end of the sleeve (21) is provided with a water outlet (212), which is connected to the output pipe (14).

5. The car washer with backflow prevention function according to claim 1, characterized in that, The bottom of the sleeve (21) is provided with a drain port (213), and the bottom of the drain port (213) is fixedly connected with a drain pipe, which is connected to the collection tank (27).

6. The car washer with backflow prevention function according to claim 1, characterized in that, The movable disk (23) has openings (231) at equal intervals around its circumference.

7. The car washer with backflow prevention function according to claim 1, characterized in that, One end of the contraction spring (26) is fixedly connected to the inner wall of the sleeve (21), and the other end of the contraction spring (26) is fixedly connected to the moving disk (23).

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