Wastewater recycling, filtering and circulating device for car washer

By designing a filtration and circulation device in the car wash machine, the filter plates and cleaning components automatically remove mud and sand impurities, solving the problem of mud and sand clogging in sewage, achieving efficient filtration and recycling of sewage, extending equipment life and reducing costs.

CN224194287UActive Publication Date: 2026-05-05WENZHOU LETU AUTOMOBILE SERVICE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU LETU AUTOMOBILE SERVICE CO LTD
Filing Date
2025-05-13
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing car wash machines generate wastewater containing a large amount of mud and sand and other impurities during the washing process, which easily clogs the filter structure of the purification equipment, requiring frequent replacement of the filter structure, and the sediment of impurities is difficult to clean.

Method used

A wastewater recycling and filtration device for car wash machines was designed, including a filter plate and a cleaning component. The filter plate filters out impurities such as mud and sand from the wastewater, and the cleaning component driven by a scraper and a cylinder automatically cleans the impurities. Combined with a wastewater purifier and a clean water storage tank, the wastewater is recycled.

Benefits of technology

It effectively avoids clogging of purification equipment, extends the service life of the filter structure, achieves efficient filtration and automatic cleaning of sewage, improves the utilization rate of wastewater, and reduces water costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224194287U_ABST
    Figure CN224194287U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of waste water recovery of car washers, and discloses a waste water recovery, filtration and circulation device for a car washer, which comprises a car washing platform and a treatment box, a draining plate is arranged in the middle of the top end of the car washing platform, water outlets are arranged on two sides of the top end of the car washing platform, and guide plates are fixedly connected on two sides of an inner cavity of the car washing platform. A filter plate is fixedly connected to the middle of an inner cavity of the treatment box, a drain outlet is formed in one end of the treatment box, a cleaning assembly used for cleaning impurities is arranged on the filter plate and comprises a scraper located at the top end of the filter plate, an ejector rod is fixedly connected to the middle of the scraper, a blocking block is arranged in an inner cavity of the drain outlet, and a sliding block is fixedly connected to the middle of the top end of the blocking block. Impurities such as silt in sewage are pretreated through the filter plate, frequent replacement of a filter structure in the purification equipment is reduced, and the impurities such as silt remaining at the top end of the filter plate are scraped away through the cleaning assembly.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of wastewater recycling technology for car wash machines, and more specifically to a wastewater recycling and filtration device for car wash machines. Background Technology

[0002] A car wash machine is a mechanical device specifically designed for automatic or semi-automatic cleaning of car surfaces. By integrating functional modules such as high-pressure water jets, detergent spraying, brush scrubbing, and air drying, it achieves efficient and standardized vehicle cleaning operations. With the rapid growth of car ownership, the car wash industry's demand for water resources is increasing. However, water resources are limited, so it is necessary to reduce water waste, improve wastewater utilization, and reduce water costs.

[0003] The shortcomings of existing technology: The wastewater generated by existing car wash machines during the car washing process contains a large amount of impurities such as mud and sand. Directly treating the wastewater containing mud and sand through wastewater purification equipment can easily cause the filter structure in the purification equipment to become clogged, reducing the service life of the filter structure and requiring frequent replacement of the filter structure. At the same time, the mud and sand impurities in the wastewater are difficult to clean after settling. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a wastewater recycling and filtration device for car wash machines, so as to solve the problem that the existing sewage treatment equipment in the background art cannot treat impurities such as mud and sand in sewage, which easily leads to clogging of the filter structure in the purification equipment, requiring frequent replacement of the filter structure, and the problem that the impurities such as mud and sand in sewage are difficult to clean after settling.

[0005] This utility model provides the following technical solution: a wastewater recycling and filtration device for a car wash machine, including a car wash platform and a treatment box fixedly connected to its bottom end. A drain plate is provided at the top center of the car wash platform, and drain outlets are provided on both sides of the top of the car wash platform. Guide plates are fixedly connected to both sides of the inner cavity of the car wash platform. A filter plate is fixedly connected to the middle of the inner cavity of the treatment box, and a sewage outlet is provided at one end of the treatment box. A cleaning component for cleaning impurities is provided on the filter plate.

[0006] The cleaning assembly includes a scraper located at the top of the filter plate, a top rod fixedly connected to the middle of the scraper, a block provided in the inner cavity of the drain port, a slider fixedly connected to the top center of the block, and a reset spring fixedly connected to one end of the slider for resetting the block.

[0007] Preferably, a drain pipe is fixedly connected to the bottom center of the car wash platform, the position of the drain plate corresponds to the position of the drain pipe and is connected to it, and the two guide plates are respectively located on both sides of the top of the drain pipe, and the guide plates are inclined towards the drain pipe.

[0008] Preferably, the cleaning component includes a guide rail located at the top of the drain outlet, the position of the slider corresponds to and is movably connected to the inner cavity of the guide rail, and the end of the return spring away from the slider is fixedly connected to the inner cavity of the guide rail.

[0009] Preferably, the position of the scraper corresponds to the position of the block, and the position of the push rod corresponds to the middle position of the block.

[0010] Preferably, an inclined plate is provided below the drain outlet, and a cylinder for driving the scraper is provided at the end of the treatment box away from the drain outlet.

[0011] Preferably, a sewage purifier for sewage purification is provided at the other end of the treatment box, and a water pump is provided at the bottom of the inner cavity of the treatment box. The output end of the water pump passes through the treatment box and is fixedly connected to the input end of the sewage purifier.

[0012] Preferably, a clean water storage tank is provided at the end of the treatment tank away from the sewage purifier, and a return water pipe is fixedly connected to the output end of the sewage purifier. The end of the return water pipe away from the sewage purifier is fixedly connected to the input end of the clean water storage tank.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model uses a filter plate to pre-treat impurities such as mud and sand in wastewater. Wastewater from car washing flows into the inner cavity of the treatment tank through a drain plate and a drain outlet. First, the wastewater passes through the filter plate, which filters out larger impurities such as mud and sand. After filtration, the wastewater enters the lower half of the inner cavity of the treatment tank. A water pump draws the water from the inner cavity of the treatment tank into the inner cavity of the wastewater purifier for purification. The purified wastewater enters the inner cavity of the clean water storage tank through a return water pipe, allowing the wastewater generated from car washing to be recycled.

[0015] 2. This utility model uses a cleaning component to remove impurities such as mud and sand filtered from the top of the filter plate. During cleaning, the cylinder is activated, and the extension of the cylinder's protruding end pushes the scraper to move on the top of the filter plate, scraping away the mud and sand residue. At the same time, as the scraper moves, the push rod squeezes the block, pushing the block away from the inner cavity of the drain port, realizing the automatic opening and closing of the drain port. After the treatment is completed, the cylinder drives the scraper back to its original position, and the block is released from the squeeze of the push rod. This allows the slider to move in the inner cavity of the guide rail due to the elasticity of the return spring, causing the block to automatically spring back to the inner cavity of the drain port. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective.

[0018] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the cleaning component of this utility model.

[0020] Figure 5 This is a schematic diagram of the overall internal structure of this utility model.

[0021] The attached diagram is labeled as follows: 1. Washing platform; 2. Processing tank; 3. Drainage plate; 4. Drain outlet; 5. Guide plate; 6. Filter plate; 7. Sewage outlet; 8. Cleaning component; 81. Scraper; 82. Top rod; 83. Block; 84. Slider; 85. Return spring; 86. Guide rail; 9. Drain pipe; 10. Inclined plate; 11. Cylinder; 12. Wastewater purifier; 13. Water pump; 14. Clean water storage tank; 15. Return water pipe. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The wastewater recycling and filtration device for car wash machines involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] This utility model provides a wastewater recycling and filtration device for car wash machines, such as... Figure 1 - Figure 5 As shown, the system includes a car wash platform 1 and a treatment box 2 fixedly connected to its bottom. A drain plate 3 is provided at the top center of the car wash platform 1. Drain outlets 4 are provided on both sides of the top of the car wash platform 1. A guide plate 5 is fixedly connected to both sides of the inner cavity of the car wash platform 1. A filter plate 6 is fixedly connected to the middle of the inner cavity of the treatment box 2. A sewage outlet 7 is provided at one end of the treatment box 2. A cleaning component 8 for cleaning impurities is provided on the filter plate 6. When a car that needs to be washed is parked on the top of the car wash platform 1, the wastewater generated during the car washing process is discharged through the drain plate 3 and the drain outlet 4.

[0024] Furthermore, such as Figure 3 and Figure 4 As shown, the cleaning assembly 8 includes a scraper 81 located at the top of the filter plate 6, a top rod 82 fixedly connected to the middle of the scraper 81, a block 83 provided in the inner cavity of the drain port 7, a slider 84 fixedly connected to the top center of the block 83, and a reset spring 85 fixedly connected to one end of the slider 84 for resetting the block 83.

[0025] Furthermore, a drain pipe 9 is fixedly connected to the bottom center of the car wash platform 1. The position of the drain plate 3 corresponds to and is connected to the position of the drain pipe 9. Two guide plates 5 are located on both sides of the top of the drain pipe 9. The guide plates 5 are inclined towards the drain pipe 9. The sewage discharged from the drain plate 3 and the drain outlet 4 flows into the drain pipe 9 through the inclined guide plates 5 on both sides. It is then discharged into the inner cavity of the treatment tank 2 through the drain pipe 9. The inner cavity of the treatment tank 2 is divided into upper and lower halves by the filter plate 6. The sewage first stays in the upper half. The filter plate 6 removes larger impurities such as mud and sand from the sewage. The sewage filtered by the filter plate 6 flows to the lower half to avoid the impurities such as mud and sand in the sewage from clogging the purification equipment.

[0026] Furthermore, such as Figure 3 and Figure 4 As shown, the cleaning component 8 includes a guide rail 86 located at the top of the drain outlet 7, a slider 84 whose position corresponds to and is movably connected to the inner cavity of the guide rail 86, and a return spring 85 whose end away from the slider 84 is fixedly connected to the inner cavity of the guide rail 86.

[0027] Furthermore, such as Figure 3 and Figure 4 As shown, the position of scraper 81 corresponds to the position of block 83, and the position of push rod 82 corresponds to the middle position of block 83.

[0028] Furthermore, such as Figure 3 and Figure 4 As shown, an inclined plate 10 is installed below the sewage outlet 7. A cylinder 11 for driving the scraper 81 is installed at the end of the treatment tank 2 furthest from the sewage outlet 7. After being filtered by the filter plate 6, impurities such as mud and sand in the sewage remain on the top of the filter plate 6. During cleaning, the cylinder 11 is activated, and the extension of the cylinder 11 pushes the scraper 81 to move on the top of the filter plate 6, scraping away the mud and sand. As the scraper 81 moves, the push rod 82 pushes the blockage 83, thus removing the blockage. As the cylinder 11 continues to extend, impurities are discharged from the drain port 7. The inclined plate 10 at the bottom facilitates the discharge of impurities. The push of the push rod 82 causes the slider 84 to move in the guide rail 86. When the slider 84 moves in the guide rail 86, it squeezes the return spring 85. After the block 83 is released from the squeeze of the push rod 82, the return spring 85 will use its own elastic characteristics to make the block 83 bounce back to the drain port 7 to block it.

[0029] Furthermore, such as Figure 1 and Figure 5As shown, a sewage purifier 12 for sewage purification is provided at the other end of the treatment tank 2. A water pump 13 is provided at the bottom of the inner cavity of the treatment tank 2. The output end of the water pump 13 passes through the treatment tank 2 and is fixedly connected to the input end of the sewage purifier 12. The filtered sewage is pumped into the inner cavity of the sewage purifier 12 by the water pump 13 for purification treatment.

[0030] Furthermore, such as Figure 1 and Figure 5 As shown, a clean water storage tank 14 is provided at the end of the treatment tank 2 away from the sewage purifier 12. The output end of the sewage purifier 12 is fixedly connected to a return water pipe 15. The end of the return water pipe 15 away from the sewage purifier 12 is fixedly connected to the input end of the clean water storage tank 14. The purified sewage flows back to the clean water storage tank 14 through the return water pipe 15 for storage. When washing the car, high-pressure water guns and other equipment are connected to the output end of the clean water storage tank 14 to reuse the purified wastewater.

[0031] The working principle of this utility model is as follows: The car to be washed is parked at the top of the car wash platform 1. Wastewater generated during the washing process is discharged through the drain plate 3 and the drain outlet 4. The discharged wastewater flows down the drain pipe 9 through the inclined guide plates 5 on both sides, and is then concentrated and discharged into the inner cavity of the treatment tank 2. The inner cavity of the treatment tank 2 is divided into upper and lower halves by the filter plate 6. Wastewater first stays in the upper half, where the filter plate 6 removes larger impurities such as mud and sand. The filtered wastewater then flows to the lower half, preventing impurities such as mud and sand from clogging the filter structure in the purification equipment. After prolonged use, a large amount of mud and sand will accumulate on the top of the filter plate 6. At this time, the cylinder 11 is activated, and the extension of the cylinder 11 pushes the scraper 81 to move on the top of the filter plate 6, scraping away the mud and sand. As the scraper 81 moves, the push rod 82 pushes the block 83, discharging the block 83 from the inner cavity of the drain outlet 7. The push of rod 82 causes slider 84 to move within the guide rail 86, simultaneously squeezing the return spring 85, causing block 83 to move out of the drain port 7. As the cylinder 11 continues to extend, impurities are discharged from the drain port 7. The inclined plate 10 at the bottom facilitates the discharge of impurities. After the impurities are discharged, the cylinder 11 is shortened, causing scraper 81 to continuously move back to its initial position. When block 83 is no longer squeezed by push rod 82, the return spring 85, through its elasticity, pushes slider 84 to move within the guide rail 86, causing block 83 to bounce back to the drain port 7 to block it. Wastewater in the lower half of the treatment tank 2 is pumped by water pump 13 to the wastewater purifier 12 for purification. The purified wastewater flows back to the clean water storage tank 14 through return pipe 15 for storage. When washing a car, high-pressure water guns and other equipment are connected to the output of clean water storage tank 14 to reuse the purified wastewater.

[0032] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0033] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wastewater recycling and filtration device for a car wash machine, comprising a car wash platform (1) and a treatment box (2) fixedly connected to its bottom end, characterized in that: The top center of the car wash platform (1) is provided with a drain plate (3), and both sides of the top of the car wash platform (1) are provided with drain outlets (4). Both sides of the inner cavity of the car wash platform (1) are fixedly connected with guide plates (5). The middle of the inner cavity of the processing box (2) is fixedly connected with a filter plate (6). One end of the processing box (2) is provided with a sewage outlet (7). The filter plate (6) is provided with a cleaning component (8) for cleaning impurities. The cleaning assembly (8) includes a scraper (81) located at the top of the filter plate (6), a top rod (82) is fixedly connected to the middle of the scraper (81), a block (83) is provided in the inner cavity of the drain port (7), a slider (84) is fixedly connected to the top middle of the block (83), and a reset spring (85) for resetting the block (83) is fixedly connected to one end of the slider (84).

2. The wastewater recycling and filtration device for a car wash machine according to claim 1, characterized in that: The bottom center of the car wash platform (1) is fixedly connected to a drain pipe (9). The position of the drain plate (3) corresponds to the position of the drain pipe (9) and is connected. The two guide plates (5) are located on both sides of the top of the drain pipe (9). The guide plates (5) are inclined in the direction of the drain pipe (9).

3. The wastewater recycling and filtration device for a car wash machine according to claim 1, characterized in that: The cleaning component (8) includes a guide rail (86) located at the top of the drain outlet (7), the position of the slider (84) corresponds to the position of the inner cavity of the guide rail (86) and is movably connected, and the end of the return spring (85) away from the slider (84) is fixedly connected to the inner cavity of the guide rail (86).

4. The wastewater recycling and filtration device for a car wash machine according to claim 1, characterized in that: The scraper (81) is positioned corresponding to the block (83), and the push rod (82) is positioned corresponding to the middle of the block (83).

5. The wastewater recycling and filtration device for a car wash machine according to claim 1, characterized in that: An inclined plate (10) is provided below the drain outlet (7), and a cylinder (11) for driving the scraper (81) to move is provided at the end of the treatment box (2) away from the drain outlet (7).

6. The wastewater recycling and filtration device for a car wash machine according to claim 1, characterized in that: The other end of the treatment box (2) is provided with a sewage purifier (12) for sewage purification. A water pump (13) is provided at the bottom of the inner cavity of the treatment box (2). The output end of the water pump (13) passes through the treatment box (2) and is fixedly connected to the input end of the sewage purifier (12).

7. A wastewater recycling and filtration device for a car wash machine according to claim 6, characterized in that: A clean water storage tank (14) is provided at the end of the treatment tank (2) away from the sewage purifier (12). The output end of the sewage purifier (12) is fixedly connected to a return water pipe (15). The end of the return water pipe (15) away from the sewage purifier (12) is fixedly connected to the input end of the clean water storage tank (14).