Rain test box convenient to maintain
By introducing a rotatable nozzle assembly and filtration system into the rain test chamber, the problems of nozzle clogging and complex water pump pressure testing have been solved, simplifying maintenance, improving test accuracy, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-06
AI Technical Summary
Existing rain test chambers are prone to nozzle clogging after long-term operation, making maintenance cumbersome and complicated, affecting the accuracy of test results. Water pump pressure testing requires disassembly, affecting normal operation and lifespan.
The nozzle assembly is designed to include a rotatably mounted semi-circular tube and nozzle, a filter box with a filter assembly, water is drawn and filtered by a water pump and then sprayed out from the nozzle, a drive unit enables multi-directional spraying, the nozzle can be rotated off for cleaning when clogged, and the water pump pressure is monitored by valves and a water pressure gauge.
It reduces the risk of nozzle clogging, simplifies the maintenance process, improves the accuracy of test results and the lifespan of the water pump, and reduces maintenance costs.
Smart Images

Figure CN223969999U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of rain test chambers, specifically a rain test chamber that is easy to maintain. Background Technology
[0002] A rain test chamber is a specialized device used to simulate rainy environments and test the waterproof performance of products. It is widely used in industries such as automotive, electronics, communications, and outdoor equipment. By precisely controlling parameters such as rainfall, wind speed, and temperature, it simulates different weather conditions from drizzle to heavy rain, providing products with a near-realistic testing environment. This equipment plays a crucial role in the product research and development and production process. It can identify potential problems in product design or materials in advance, preventing product malfunctions due to insufficient waterproof performance during actual use, thereby effectively improving product quality and user satisfaction.
[0003] However, existing rain test chamber technologies suffer from several maintenance and operational inconveniences. Specifically, after prolonged operation, the nozzles are prone to clogging, affecting the accuracy of test results. Current technologies typically require disassembling the entire spray system for cleaning or replacement, which is not only cumbersome but also prone to damaging other components, increasing maintenance costs and time. Furthermore, existing technologies often require pump pressure testing after pump disassembly, which is complex and can negatively impact pump operation and lifespan. Therefore, a rain test chamber designed for easy maintenance is proposed to address these issues. Utility Model Content
[0004] In view of the shortcomings of the prior art, this utility model provides a rain test chamber that is easy to maintain, so as to overcome the shortcomings of the prior art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A rain test chamber that is easy to maintain includes a test chamber and a test platform fixedly installed at the bottom of the inner cavity of the test chamber, wherein a nozzle assembly is provided inside the test chamber;
[0007] The nozzle assembly includes rotating shafts rotatably mounted on the left and right sides of the inner cavity of the test chamber. A semi-circular tube is fixedly installed between the two rotating shafts. Multiple externally threaded connecting pipes are fixedly installed at the bottom of the semi-circular tube, penetrating its interior. Nozzles are threaded onto the exterior of each of the multiple externally threaded connecting pipes. A drive unit for driving the semi-circular tube to rotate is provided on the left outer wall of the test chamber. A folded tube penetrating the left side wall of the test chamber is fixedly installed at the bottom of the semi-circular tube. A rigid tube is fixedly installed on the left side of the folded tube. A filter box is fixedly installed at the top of the rigid tube. A filter assembly is provided inside the filter box. A water pump is fixedly installed on the left outer wall of the test chamber. An extraction pipe is fixedly installed at the pump's suction end. A drain pipe penetrating the interior of the filter box is fixedly installed at the pump's output end.
[0008] The beneficial effects of this utility model are as follows: After the product is placed on the top of the test bench, the water pump draws water through the extraction pipe, and the water enters the filter box through the drain pipe. After being purified by the filter assembly, the water flows into the semi-circular pipe through the rigid pipe and the folded pipe, and is sprayed out from the nozzle of the external threaded connection pipe. The water is concentrated on the top of the test bench for waterproof testing. The drive unit drives the semi-circular pipe to rotate, so as to realize multi-directional spraying of the product. This design reduces the risk of nozzle clogging through the filter assembly. When the nozzle is clogged, it can be easily rotated and removed for cleaning.
[0009] Based on the above technical solution, the present invention can be further improved as follows.
[0010] Furthermore, a valve is installed on the rigid pipe, and a water pressure gauge is fixedly installed on the top of the filter box.
[0011] Furthermore, the filter assembly includes four limiting strips fixedly installed on the inner walls of the front and rear sides of the filter box, and the four limiting strips are arranged in pairs on the inner walls of the front and rear sides of the filter box, with a filter screen slidably installed between the four limiting strips.
[0012] Furthermore, a sealing cover is provided on the left side of the filter box. One side of the sealing cover is hinged to the filter box via multiple hinges, and the other end is snapped to the filter box via multiple snaps.
[0013] Furthermore, the drive unit includes a servo motor fixedly installed on the outer wall of the left side of the test chamber, and the output end of the servo motor is fixedly connected to a rotating shaft rotatably installed on the left side of the inner cavity of the test chamber. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the rain test chamber of this utility model, which is easy to maintain, from one perspective.
[0015] Figure 2 This is a schematic diagram of the rain test chamber of this utility model from another perspective;
[0016] Figure 3 This is a schematic diagram of the exploded structure of the rain test chamber for easy maintenance according to this utility model;
[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of a semi-circular tube;
[0018] Figure 5 for Figure 3 Enlarged structural diagram at point A in the middle;
[0019] The attached diagram lists the components represented by each number as follows:
[0020] 1. Test chamber; 2. Test bench; 3. Rotating shaft; 4. Semi-circular tube; 5. External threaded connecting pipe; 6. Nozzle; 7. Folded tube; 8. Rigid tube; 9. Filter box; 10. Water pump; 11. Extraction pipe; 12. Drain pipe; 13. Valve; 14. Water pressure gauge; 15. Limit bar; 16. Filter screen; 17. Sealing cover; 18. Servo motor. Detailed Implementation
[0021] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0022] Example 1, such as Figures 1-5 As shown, a rain test chamber that is easy to maintain includes a test chamber 1 and a test platform 2 fixedly installed at the bottom of the inner cavity of the test chamber 1. The test chamber 1 is equipped with a nozzle assembly.
[0023] Specifically, the nozzle assembly includes rotating shafts 3 rotatably mounted on the left and right sides of the inner cavity of the test chamber 1. A semi-circular tube 4 is fixedly installed between the two rotating shafts 3. Multiple externally threaded connecting pipes 5 are fixedly installed at the bottom of the semi-circular tube 4, penetrating into its interior. Nozzles 6 are threaded onto the outside of each of the multiple externally threaded connecting pipes 5. A drive unit for driving the semi-circular tube 4 to rotate is provided on the left outer wall of the test chamber 1. A folded pipe 7 penetrating the left side wall of the test chamber 1 is fixedly installed at the bottom of the semi-circular tube 4. A rigid pipe 8 is fixedly installed on the left side of the folded pipe 7. A filter box 9 is fixedly installed at the top of the rigid pipe 8. A filter assembly is provided inside the filter box 9. A water pump 10 is fixedly installed on the left outer wall of the test chamber 1. An extraction pipe 11 is fixedly installed at the water pump 10's pumping end. A drain pipe 12 penetrating into the filter box 9 is fixedly installed at the water pump 10's output end.
[0024] In use, the product is placed directly on top of the test bench 2. Then, the water pump 10 operates to draw water from the outside through the extraction pipe 11. The drawn water is discharged into the filter box 9 through the drain pipe 12. Inside the filter box 9, the water is filtered by the filter assembly. The filtered water then passes through the rigid pipe 8 and the folded pipe 7 to enter the semi-circular tube 4, and is sprayed outwards from the external threaded connecting pipe 5 and the nozzle 6. Finally, the sprayed water concentrates on the top of the test bench 2, allowing for a waterproof test on the product on top of the test bench 2. For multi-directional waterproof testing, the semi-circular tube 4 can be rotated in both directions by the drive unit to perform multi-directional spraying tests on the product. By filtering the drawn water through the filter assembly before discharging it into the semi-circular tube 4, the probability of nozzle 6 clogging can be effectively reduced. Furthermore, when nozzle 6 becomes clogged, the clogged nozzle 6 can be directly rotated and removed from the outside of the external threaded connecting pipe 5.
[0025] Example 2, as Figures 1-5 As shown, this embodiment is a further improvement based on embodiment 1, and its specific details are as follows:
[0026] A valve 13 is installed on the rigid pipe 8, and a water pressure gauge 14 is fixedly installed on the top of the filter box 9.
[0027] With this setup, the flow state of the rigid pipe 8 can be controlled by the valve 13. When the rigid pipe 8 is blocked, the pumped water is stored inside the filter box 9. If the water pump 10 continues to run and drain water into the filter box 9, the pressure inside the filter box 9 will increase. By observing the water pressure gauge 14, the pressure of the water pump 10 can be determined, and it can also be determined whether the rigid pipe 8 is blocked.
[0028] Example 3, as Figures 1-5 As shown, this embodiment is a further improvement based on embodiment 1, and its specific details are as follows:
[0029] The filter assembly includes four limiting strips 15 fixedly installed on the inner walls of the front and rear sides of the filter box 9, and the four limiting strips 15 are arranged in pairs on the inner walls of the front and rear sides of the filter box 9. A filter screen 16 is slidably installed between the four limiting strips 15.
[0030] With this configuration, the filter screen 16 is confined inside the filter box 9 by four limiting bars 15. Water discharged from the pump 10 is discharged into the filter box 9 from the top, and then impurities in the water can be filtered out by the filter screen 16.
[0031] Example 4, as Figures 1-5 As shown, this embodiment is a further improvement based on embodiment 1, and its specific details are as follows:
[0032] A sealing cover 17 is provided on the left side of the filter box 9. One side of the sealing cover 17 is hinged to the filter box 9 by multiple hinges, and the other side is snapped to the filter box 9 by multiple snaps.
[0033] With this configuration, the left side of the filter box 9 can be sealed by the installed sealing cover 17. After opening the sealing cover 17, the inside of the filter box 9 can be cleaned. The multiple clips can firmly restrict the sealing cover 17 to the left side of the filter box 9.
[0034] Example 5, as Figures 1-5 As shown, this embodiment is a further improvement based on embodiment 1, and its specific details are as follows:
[0035] The drive unit includes a servo motor 18 fixedly installed on the outer left side of the test chamber 1. The output end of the servo motor 18 is fixedly connected to the rotating shaft 3 rotatably installed on the left side of the inner cavity of the test chamber 1.
[0036] With this setup, the servo motor 18 drives the rotating shaft 3 on the left side of the inner cavity of the test chamber 1 to rotate in both directions, which in turn drives the semi-circular tube 4 to rotate synchronously, thereby achieving multi-directional waterproof testing of the product.
[0037] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A rain test chamber convenient to maintain, comprising a test chamber (1) and a test table (2) fixedly installed at the bottom of the inner cavity of the test chamber (1), characterized in that: The inside of the test box (1) is provided with a shower head assembly; The shower head assembly comprises two rotating shafts (3) rotatably installed on the left and right sides of the inner cavity of the test box (1), a semicircular pipe (4) fixedly installed between the two rotating shafts (3), a plurality of external thread connection pipes (5) fixedly installed at the bottom of the semicircular pipe (4) and penetrating into the inside thereof, a nozzle (6) threadedly installed on the outside of each of the plurality of external thread connection pipes (5), a drive unit provided on the left outer wall of the test box (1) and configured to drive the semicircular pipe (4) to rotate, a folding pipe (7) fixedly installed at the bottom of the semicircular pipe (4) and penetrating through the left side wall of the test box (1), a hard pipe (8) fixedly installed on the left side of the folding pipe (7), a filter box (9) fixedly installed at the top of the hard pipe (8), a filter assembly provided in the inside of the filter box (9), a water pump (10) fixedly installed on the left outer wall of the test box (1), a suction pipe (11) fixedly installed at the water suction end of the water pump (10), and a drain pipe (12) fixedly installed at the water output end of the water pump (10) and penetrating into the inside of the filter box (9).
2. A rain test chamber for easy maintenance according to claim 1, characterized in that: A valve (13) is provided on the hard pipe (8), and a water pressure gauge (14) is fixedly installed at the top of the filter box (9).
3. A convenient maintenance rain test chamber according to claim 1, characterized in that: The filter assembly comprises four limiting strips (15) fixedly installed on the inner walls of the front and rear sides of the filter box (9), and each two of the four limiting strips (15) are arranged on the front and rear inner walls of the filter box (9), respectively, and a filter screen (16) slidably installed between the four limiting strips (15).
4. A convenient maintenance rain test chamber according to claim 1, characterized in that: A sealing cover (17) is provided on the left side of the filter box (9), one side of the sealing cover (17) is hingedly connected to the filter box (9) through a plurality of hinges, and the other side is clamped to the filter box (9) through a plurality of buckles.
5. A convenient maintenance rain test chamber according to claim 1, characterized in that: The drive unit comprises a servo motor (18) fixedly installed on the left outer wall of the test box (1), and the output end of the servo motor (18) is fixedly connected to the rotating shaft (3) rotatably installed on the left side of the inner cavity of the test box (1).
Citation Information
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