Rain test device capable of being automatically cleaned

By designing a rain test device with an automatic cleaning system, the problem of the existing devices lacking automatic cleaning function after testing is solved, and automatic cleaning without manual operation is achieved, which improves cleaning efficiency and effect.

CN222993909UActive Publication Date: 2025-06-17NANJING LONGYUE XINGTAI TECH CO LTD
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Patent Information

Application Number
CN202422021640.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-20
Publication Date
2025-06-17
Estimated Expiration
2034-08-20

AI Technical Summary

Technical Problem

The existing rain test device lacks automatic cleaning function after testing, which leads to the susceptibility to cross-contamination of subsequent tests, and manual cleaning is time-consuming and labor-intensive and ineffective.

Method used

A rain test device including water storage chamber, vertical plate, water blocking side plate and a variety of transmission devices was designed. Through the lifting plate, threaded rod, worm and belt transmission system, automatic injection and rotation of cleaner and water is realized, and the complete automatic cleaning of the interior of the device is completed.

Benefits of technology

It realizes automatic cleaning of the rain test device without manual operation, improves cleaning efficiency and effect, avoids cross-contamination, and saves time and manpower.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a rain test device capable of being automatically cleaned, which comprises a base, vertical plates and a water retaining side plate are arranged at the top of the base, a lifting plate is arranged between the two vertical plates, two supporting plates are arranged at the bottom of the lifting plate, and a first water storage pipe and a second water storage pipe are arranged between the two supporting plates. A first driven wheel, a second driven wheel, a first worm gear, a second worm gear and a worm are arranged on the outer side surface of one supporting plate, a first driving wheel is arranged on the front side of the first worm gear, a second driving wheel is arranged on the front side of the second worm gear, a first rain spraying nozzle is arranged at the bottom of the first water storage pipe, and a second rain spraying nozzle is arranged at the bottom of the second water storage pipe. A first liquid storage pipe and a second liquid storage pipe are arranged on one side of the first water storage pipe and one side of the second water storage pipe respectively, and a plurality of first cleaning agent nozzles and second cleaning agent nozzles are arranged on the side faces of the first liquid storage pipe and the second liquid storage pipe respectively; according to the device, comprehensive and thorough automatic cleaning operation can be achieved, the cleaning effect is good, manual operation is not needed, and time and labor are saved.
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Description

Technical Field

[0001] The utility model relates to the technical field of rain test, in particular to a rain test device capable of automatic cleaning. Background Technique

[0002] The rain test device, also known as the "rain test chamber", is at the IPX3 and IPX4 levels in the IP protection level device, and is applicable to the protection of external lighting and signal devices and the housing of automotive lamps. It can provide a realistic simulation of various environments such as water spraying and shower tests that electronic products and their components may be subjected to during transportation and use, so as to detect the waterproof performance of various products.

[0003] After the rain test device is tested, there will be pollutants inside the device, which will cause cross-contamination to subsequent tests. Many existing devices do not have the function of automatic cleaning. Each cleaning requires manual operation, which is time-consuming and laborious, and the cleaning effect is not good. Therefore, we design a rain test device capable of automatic cleaning to solve the above technical problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a rain test device capable of automatic cleaning to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An automatic cleaning rain test device, comprising a base with a water storage cavity inside. On the front and rear sides of the top of the base, vertical plates are symmetrically arranged. On the left and right sides of the top of the base, water retaining side plates are symmetrically arranged. At the center of the top of the base, there is a loading platform. On the side surfaces of the two vertical plates close to each other, chutes are respectively opened along the directions of their respective vertical central axes. In the chutes, threaded rods are rotatably arranged. Threaded sleeves are arranged on the threaded rods, and lifting blocks are slidably arranged in the chutes. A lifting plate is fixedly connected between the two lifting blocks. On the left and right sides of the bottom of the lifting plate, support plates are symmetrically arranged. Between the two support plates, a first water storage pipe and a second water storage pipe are rotatably arranged. On the outer surface of one of the support plates, a first driven wheel and a second driven wheel are respectively rotatably connected through a first rotating shaft and a second rotating shaft. The other end of the first rotating shaft is connected to one end of the first water storage pipe, and the other end of the second rotating shaft is connected to one end of the second water storage pipe. At the middle of the front side surface of the support plate, fixing plates are symmetrically arranged up and down. Between the two fixing plates, a worm is rotatably arranged. At the midpoint of the length direction of the worm, an auxiliary plate is sleeved. The auxiliary plate is fixedly installed on the surface of the support plate. The auxiliary plate divides the worm into an upper half and a lower half. On the front side surface of the support plate, a first worm gear and a second worm gear are respectively rotatably connected through a third rotating shaft and a fourth rotating shaft. On the front side surface of the first worm gear, a first driving wheel is arranged. On the front side surface of the second worm gear, a second driving wheel is arranged. At the bottom of the first water storage pipe, a plurality of first rain nozzles are evenly arranged along its length direction. At the bottom of the second water storage pipe, a plurality of second rain nozzles are evenly arranged along its length direction. On the sides of the first water storage pipe and the second water storage pipe close to each other, a first liquid storage pipe and a second liquid storage pipe are respectively arranged. On the side surfaces of the first liquid storage pipe and the second liquid storage pipe close to each other, a plurality of first cleaning agent nozzles and second cleaning agent nozzles are respectively arranged.

[0007] As a preferred solution of the present utility model: The first worm gear meshes with the left side of the upper half of the worm, and the second worm gear meshes with the right side of the lower half of the worm. The first driving wheel and the first driven wheel are connected by belt drive, and the second driving wheel and the second driven wheel are also connected by belt drive.

[0008] As a further preferred solution of the present utility model: A liquid storage box storing a cleaning agent is arranged on the top of the lifting plate. Liquid conveying pipes are respectively connected between the liquid storage box and the first liquid storage pipe and the second liquid storage pipe. Water conveying pipes are respectively connected between the water storage cavity and the first water storage pipe and the second water storage pipe. Pump bodies are respectively arranged on the water conveying pipes and the liquid conveying pipes.

[0009] As a further preferred solution of the present utility model: Two limiting blocks are respectively arranged on the front and rear side surfaces of the lifting plate. Limiting grooves for the limiting blocks to slide and be embedded are opened on the outer side surface of the vertical plate. The two limiting grooves on the same vertical plate are symmetrically distributed on the left and right sides of the chute.

[0010] As a further preferred embodiment of the present utility model: a water injection port communicating with the water storage cavity is provided at the top of the base, a filter screen is provided at the water injection port, and a drain port is provided on the outer surface of the water retaining side plate.

[0011] As a further preferred embodiment of the present utility model: the two water retaining side plates are respectively connected to the outer side surfaces of the adjacent vertical plates.

[0012] As a further preferred embodiment of the present utility model: the horizontal position of the first water storage pipe is higher than the horizontal position of the second water storage pipe.

[0013] As a further preferred embodiment of the present utility model: a first motor is provided at the top of the vertical plate, and the output shaft of the first motor is connected to the top end of the threaded rod.

[0014] As a further preferred embodiment of the present utility model: a second motor is provided at the top of the upper fixing plate, and the output shaft of the second motor is connected to the top end of the worm.

[0015] As a further preferred embodiment of the present utility model: the spraying direction of the first rain nozzle is perpendicular to the spraying direction of the first cleaning agent nozzle, and the spraying direction of the second rain nozzle is perpendicular to the spraying direction of the second cleaning agent nozzle.

[0016] The beneficial effects of the present utility model are:

[0017] 1. When the device performs an automatic cleaning operation, first of all, the lifting plate is at the highest position, the first shower nozzle and the second shower nozzle are in a vertical state, and the first cleaning agent nozzle and the second cleaning agent nozzle are in a horizontal state. Since the horizontal position of the first water storage pipe is higher than that of the second water storage pipe, the positions of the first cleaning agent nozzle and the second cleaning agent nozzle are staggered up and down. Therefore, the cleaning agents sprayed by the first cleaning agent nozzle and the second cleaning agent nozzle interfere with each other, and the cleaning agent can be sprayed on the inner surface of the corresponding vertical plate. At the same time, start the first motor, the first motor drives the threaded rod to rotate, and then the lifting plate can be driven to move downward through the lifting block, and then drive the first cleaning agent nozzle and the second cleaning agent nozzle to move downward, so that the inner surface of the vertical plate is completely covered with the cleaning agent. When the lifting plate moves downward to the lowest position and rises to reset, start the second motor, the second motor drives the worm to rotate, and then drives the first worm gear and the second worm gear to rotate, and the rotation directions of the two are opposite. Then, through the first driving wheel and the second driving wheel and the corresponding belts, the first driven wheel and the second driven wheel can be driven to rotate, and the rotation directions of the two are opposite. Finally, the first water storage pipe and the second water storage pipe can be driven to rotate, and the rotation directions of the two are opposite. Therefore, the first cleaning agent nozzle and the second cleaning agent nozzle can be controlled to rotate to a vertical state, and at this time the first shower nozzle and the second shower nozzle are in a horizontal state. That is, during the upward movement of the lifting plate, the first cleaning agent nozzle and the second cleaning agent nozzle can spray the cleaning agent on the top of the base and the top of the loading platform. At the same time, the first shower nozzle and the second shower nozzle can spray water to wash the inner surface of the vertical plate stained with the cleaning agent. Finally, adjust the first shower nozzle and the second shower nozzle to a vertical state again to clean the top of the base and the top of the loading platform stained with the cleaning agent, realizing a comprehensive and thorough automatic cleaning operation of the device. The cleaning effect is good, and there is no need for manual operation, saving time and effort.

[0018] 2. When the device conducts a rain test, the drain port is closed and the water injection port is open. The water generated by the rain test can flow back into the water storage cavity through the water injection port, avoiding waste of water resources. When performing a cleaning operation, both the drain port and the water injection port are closed. Due to the action of the water blocking side plate and the vertical plate, the mixed dirty liquid after cleaning can be temporarily stored at the top of the base, and then the drain port is opened to discharge the mixed dirty liquid centrally at any time, avoiding environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0020] Figure 1 is a three-dimensional view of the overall structure of the present invention;

[0021] Figure 2This is a schematic diagram of the partial structure of the present utility model;

[0022] Figure 3 It is Figure 2 an enlarged view of part A in

[0023] Figure 4 This is a schematic diagram of the partial structure of the present utility model.

[0024] Wherein: 1 - base, 2 - water retaining side plate, 3 - vertical plate, 4 - lifting plate, 5 - limiting groove, 6 - lifting block, 7 - first motor, 8 - limiting block, 9 - threaded rod, 10 - loading platform, 11 - sliding groove, 12 - liquid storage box, 13 - first water storage pipe, 14 - second water storage pipe, 15 - first liquid storage pipe, 16 - second liquid storage pipe, 17 - second cleaning agent nozzle, 18 - first cleaning agent nozzle, 19 - first shower nozzle, 20 - second shower nozzle, 21 - fixing plate, 22 - worm, 23 - second driving wheel, 24 - second driven wheel, 25 - second worm gear, 26 - first worm gear, 27 - first driven wheel, 28 - first driving wheel, 29 - second motor, 30 - support plate. Detailed implementation manners

[0025] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0026] Please refer to Figures 1-4, in the embodiment of the present utility model, a rain test device capable of automatic cleaning includes a base 1 with a water storage cavity inside. On the front and rear sides of the top of the base 1, vertical plates 3 are symmetrically arranged. On the left and right sides of the top of the base 1, water retaining side plates 2 are symmetrically arranged. The two water retaining side plates 2 are respectively connected to the outer side surfaces of the adjacent vertical plates 3. At the center of the top of the base 1, a loading platform 10 is provided. On the side surfaces of the two vertical plates 3 close to each other, chutes 11 are respectively opened along the direction of their respective vertical central axes. A threaded rod 9 is rotatably arranged in the chute 11. A lifting block 6 is sleeved on the threaded rod 9 in a threaded manner. The lifting block 6 is slidably arranged in the chute 11. A lifting plate 4 is fixedly connected between the two lifting blocks 6. On the left and right sides of the bottom of the lifting plate 4, support plates 30 are symmetrically arranged. At the top of the vertical plate 3, a first motor 7 is provided. The output shaft of the first motor 7 is connected to the top end of the threaded rod 9. A first water storage pipe 13 and a second water storage pipe 14 are rotatably arranged between the two support plates 30. The horizontal position of the first water storage pipe 13 is higher than the horizontal position of the second water storage pipe 14. On the outer surface of one of the support plates 30, a first driven wheel 27 and a second driven wheel 24 are respectively rotatably connected through a first rotating shaft and a second rotating shaft. The other end of the first rotating shaft is connected to one end of the first water storage pipe 13. The other end of the second rotating shaft is connected to one end of the second water storage pipe 14. At the middle of the front surface of the support plate 30, fixing plates 21 are symmetrically arranged up and down. A worm 22 is rotatably arranged between the two fixing plates 21. At the top of the upper fixing plate 21, a second motor 29 is provided. The output shaft of the second motor 29 is connected to the top end of the worm 22. At the midpoint of the length direction of the worm 22, an auxiliary plate is sleeved. The auxiliary plate is fixedly installed on the surface of the support plate 30. The auxiliary plate divides the worm 22 into an upper half and a lower half. On the front surface of the support plate 30, a first worm gear 26 and a second worm gear 25 are respectively rotatably connected through a third rotating shaft and a fourth rotating shaft. On the front surface of the first worm gear 26, a first driving wheel 28 is provided. On the front surface of the second worm gear 25, a second driving wheel 23 is provided.

[0027] The first worm gear 26 meshes with the left side of the upper half of the worm 22, and the second worm gear 25 meshes with the right side of the lower half of the worm 22. The first driving wheel 28 and the first driven wheel 27 are connected by belt drive, and the second driving wheel 23 and the second driven wheel 24 are also connected by belt drive.

[0028] A plurality of first rain nozzles 19 are uniformly arranged at the bottom of the first water storage pipe 13 along its length direction. A plurality of second rain nozzles 20 are uniformly arranged at the bottom of the second water storage pipe 14 along its length direction. On the sides of the first water storage pipe 13 and the second water storage pipe 14 close to each other, a first liquid storage pipe 15 and a second liquid storage pipe 16 are respectively provided. On the sides of the first liquid storage pipe 15 and the second liquid storage pipe 16 close to each other, a plurality of first cleaning agent nozzles 18 and second cleaning agent nozzles 17 are respectively provided. The spraying direction of the first rain nozzle 19 is perpendicular to the spraying direction of the first cleaning agent nozzle 18, and the spraying direction of the second rain nozzle 20 is perpendicular to the spraying direction of the second cleaning agent nozzle 17.

[0029] A liquid storage box 12 storing a cleaning agent is provided at the top of the lifting plate 4. Liquid infusion pipes are respectively connected between the liquid storage box 12 and the first liquid storage pipe 15 and the second liquid storage pipe 16. Water delivery pipes are respectively connected between the water storage cavity and the first water storage pipe 13 and the second water storage pipe 14. Pump bodies are respectively provided on the water delivery pipes and the liquid infusion pipes; the liquid infusion pipe is used to convey the cleaning agent in the liquid storage box 12 into the first liquid storage pipe 15 and the second liquid storage pipe 16, and spray it out through the first cleaning agent nozzle 18 and the second cleaning agent nozzle 17 for cleaning operations. The water delivery pipe is used to convey the water in the water storage cavity into the first water storage pipe 13 and the second water storage pipe 14, and spray it out through the first shower nozzle 19 and the second shower nozzle 20. On the one hand, it is used for the shower test, and on the other hand, it is used to wash the area stained with the cleaning agent to improve the cleaning cleanliness. The water delivery pipe and the liquid infusion pipe here are both soft pipes, and the design of their connection structures is prior art. As long as it is reasonable, it is not the innovation of this application. Therefore, it is not shown in the figure and will not be elaborated in detail.

[0030] Two limiting blocks 8 are respectively provided on the front and rear side surfaces of the lifting plate 4. Limiting grooves 5 for the sliding insertion of the limiting blocks 8 are formed on the outer side surface of the vertical plate 3. The two limiting grooves 5 on the same vertical plate 3 are symmetrically distributed on the left and right sides of the sliding groove 11.

[0031] Specifically, when the device performs an automatic cleaning operation, first, the lifting plate 4 is at the highest position, the first shower nozzle 19 and the second shower nozzle 20 are in a vertical state, and the first cleaning agent nozzle 18 and the second cleaning agent nozzle 17 are in a horizontal state. Since the horizontal position of the first water storage pipe 13 is higher than that of the second water storage pipe 14, the positions of the first cleaning agent nozzle 18 and the second cleaning agent nozzle 17 are staggered up and down. Therefore, the cleaning agents sprayed by the first cleaning agent nozzle 18 and the second cleaning agent nozzle 17 interfere with each other, and the cleaning agent can be sprayed on the inner surface of the corresponding vertical plate 3. At the same time, the first motor 7 is started, and the first motor 7 drives the threaded rod 9 to rotate. Then, the lifting plate 4 can be driven to move downward through the lifting block 6, and then the first cleaning agent nozzle 18 and the second cleaning agent nozzle 17 are driven to move downward, so that the inner surface of the vertical plate 3 is completely covered with the cleaning agent. When the lifting plate 4 moves downward to the lowest position and rises to reset, the second motor 29 is started, and the second motor 29 drives the worm 22 to rotate, thereby driving the first worm gear 26 and the second worm gear 25 to rotate, and their rotation directions are opposite. Then, through the first driving wheel 28 and the second driving wheel 23 and the corresponding belts, the first driven wheel 27 and the second driven wheel 24 can be driven to rotate, and their rotation directions are opposite. Finally, the first water storage pipe 13 and the second water storage pipe 14 can be driven to rotate, and their rotation directions are opposite. Therefore, the first cleaning agent nozzle 18 and the second cleaning agent nozzle 17 can be controlled to rotate to a vertical state, and at this time, the first shower nozzle 19 and the second shower nozzle 20 are in a horizontal state. That is, during the upward movement of the lifting plate 4, the first cleaning agent nozzle 18 and the second cleaning agent nozzle 17 can spray the cleaning agent on the top of the base 1 and the top of the loading platform 10. At the same time, the first shower nozzle 19 and the second shower nozzle 20 can spray water to wash the inner surface of the vertical plate 3 stained with the cleaning agent. Finally, the first shower nozzle 19 and the second shower nozzle 20 are adjusted to the vertical state again to clean the top of the base 1 and the top of the loading platform 10 stained with the cleaning agent, realizing the comprehensive and thorough automatic cleaning operation of the device. The cleaning effect is good, and there is no need for manual operation, saving time and effort.

[0032] The top of the base 1 is provided with a water injection port communicated with the water storage cavity, and a filter screen is provided at the water injection port. The outer surface of the water retaining side plate 2 is provided with a drain port; during the rain test, the drain port is closed and the water injection port is opened, and the water generated by the rain test can flow back into the water storage cavity through the water injection port, avoiding waste of water resources. During the cleaning operation, both the drain port and the water injection port are closed. Due to the function of the water retaining side plate 2 and the vertical plate 3, the mixed dirty liquid after cleaning can be temporarily stored on the top of the base 1, and then the drain port is opened to discharge the mixed dirty liquid centrally at any time, avoiding environmental pollution.

[0033] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. An automatic cleaning rain test device, comprising a base (1) having a water storage chamber therein; characterized in that: Vertical plates (3) are symmetrically arranged on the front and rear sides of the top of the base (1), and water-blocking side plates (2) are symmetrically arranged on the left and right sides of the top of the base (1). A loading platform (10) is arranged at the center of the top of the base (1). Sides of the two vertical plates (3) close to each other are respectively provided with sliding grooves (11) along the directions of their respective vertical central axes. A threaded rod (9) is rotatably arranged in the sliding groove (11), and a lifting block (6) is threadedly sleeved on the threaded rod (9). The lifting block (6) is slidably arranged in the sliding groove (11), and a lifting plate (4) is fixedly connected between the two lifting blocks (6). The bottom of the lifting plate (4) is symmetrically provided with support plates (30) on both sides, and a first water storage pipe (13) and a second water storage pipe (14) are rotatably provided between the two support plates (30). The outer surface of one of the support plates (30) is rotatably connected to a first driven wheel (27) and a second driven wheel (24) via a first rotating shaft and a second rotating shaft, respectively. The other end of the first rotating shaft is connected to one end of the first water storage pipe (13), and the other end of the second rotating shaft is connected to one end of the second water storage pipe (14). The middle of the front side surface of the support plate (30) is symmetrically provided with a first water storage pipe (13) and a second water storage pipe (14). A fixing plate (21), a worm (22) is rotatably arranged between the two fixing plates (21), an auxiliary plate is sleeved at the midpoint of the length direction of the worm (22), the auxiliary plate is fixedly mounted on the surface of the support plate (30), the auxiliary plate divides the worm (22) into an upper half and a lower half, the front side surface of the support plate (30) is rotatably connected to a first worm wheel (26) and a second worm wheel (25) through a third rotating shaft and a fourth rotating shaft, the front side surface of the first worm wheel (26) is provided with a first driving wheel (28), and the front side surface of the second worm wheel (25) is provided with a second driving wheel (28). The invention relates to a wheel (23), a plurality of first shower nozzles (19) are evenly arranged at the bottom of the first water storage pipe (13) along its length direction, a plurality of second shower nozzles (20) are evenly arranged at the bottom of the second water storage pipe (14) along its length direction, a first liquid storage pipe (15) and a second liquid storage pipe (16) are respectively arranged on the side where the first water storage pipe (13) and the second water storage pipe (14) are close to each other, and a plurality of first detergent nozzles (18) and a second detergent nozzle (17) are respectively arranged on the side where the first liquid storage pipe (15) and the second liquid storage pipe (16) are close to each other.

2. The automatic cleaning rain test device according to claim 1, characterized in that: The first worm wheel (26) is meshed with the left side of the upper half of the worm (22), the second worm wheel (25) is meshed with the right side of the lower half of the worm (22), the first driving wheel (28) and the first driven wheel (27) are connected by a belt transmission, and the second driving wheel (23) and the second driven wheel (24) are also connected by a belt transmission.

3. The automatic cleaning rain test device according to claim 2, characterized in that: A liquid storage box (12) storing detergent is provided on the top of the lifting plate (4); liquid infusion pipes are respectively connected between the liquid storage box (12) and the first liquid storage pipe (15) and the second liquid storage pipe (16); water delivery pipes are respectively connected between the water storage cavity and the first water storage pipe (13) and the second water storage pipe (14); and pump bodies are respectively provided on the water delivery pipes and the liquid infusion pipes.

4. The automatic cleaning rain test device according to claim 3, characterized in that: The front and rear surfaces of the lifting plate (4) are respectively provided with two limit blocks (8); the outer surface of the vertical plate (3) is provided with a limit groove (5) for the limit block (8) to slide and embed; the two limit grooves (5) on the same vertical plate (3) are symmetrically distributed on the left and right sides of the slide groove (11).

5. The automatic cleaning rain test device according to claim 1, characterized in that: The top of the base (1) is provided with a water inlet connected to the water storage chamber, a filter screen is provided at the water inlet, and the outer surface of the water retaining side plate (2) is provided with a drainage outlet.

6. The automatic cleaning rain test device according to claim 5, characterized in that: The two water retaining side plates (2) are respectively connected to the outer side surfaces of adjacent vertical plates (3).

7. The automatic cleaning rain test device according to claim 6, characterized in that: The horizontal position of the first water storage pipe (13) is higher than the horizontal position of the second water storage pipe (14).

8. The automatic cleaning rain test device according to claim 7, characterized in that: A first motor (7) is provided on the top of the vertical plate (3), and an output shaft of the first motor (7) is connected to the top end of the threaded rod (9).

9. The automatic cleaning rain test device according to claim 8, characterized in that: A second motor (29) is provided on the top of the upper fixing plate (21), and an output shaft of the second motor (29) is connected to the top end of the worm (22).

10. The automatic cleaning rain test device according to claim 1, characterized in that: The spraying direction of the first shower nozzle (19) is perpendicular to the spraying direction of the first detergent nozzle (18), and the spraying direction of the second shower nozzle (20) is perpendicular to the spraying direction of the second detergent nozzle (17).