A water circulation rain test chamber

By using a Teflon hydrophobic coating and a sloping design in the water circulation rain test chamber, combined with a wiper assembly, the problem of misjudgment caused by condensation on the inner wall was solved, thus achieving the precision and accuracy of the test.

CN224535738UActive Publication Date: 2026-07-21JIANGSU HAIFU VERTEST TEST INSTR CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU HAIFU VERTEST TEST INSTR CO LTD
Filing Date
2025-06-24
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

When using existing water circulation rain test chambers, the large temperature difference between the inside and outside of the chamber causes the inner wall temperature to be lower than the dew point temperature, resulting in condensation and the formation of water droplets or mist. This may accidentally wet non-target areas of the sample, leading to misjudgment.

Method used

It adopts a Teflon hydrophobic coating and a beveled design, combined with a wiper assembly, to reduce the temperature of the inner wall and prevent the formation of water droplets or mist. The water is sprayed through the nozzle to ensure that the water flow accurately wets the target area, while the wiper assembly removes water droplets from the viewing window.

Benefits of technology

This improves the accuracy of the test, avoids misjudgments due to water droplets or mist accidentally wetting non-target areas, and ensures the accuracy of sample testing.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224535738U_ABST
    Figure CN224535738U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of water circulation rain test box, the utility model includes water tank, test box, first conveying component, second conveying component, cylinder and top plate, test box is fixedly arranged at the top of water tank, the inside of test box is fixedly provided with cavity, the inside of test box is fixedly provided with first Teflon hydrophobic coating, first conveying component is fixedly arranged on water tank, second conveying component is fixedly arranged on test box, cylinder is fixedly arranged at the both sides of test box, top plate is fixedly arranged at the top of cylinder, the inside of top plate is fixedly provided with slope, the surface of slope is fixedly provided with third Teflon hydrophobic coating.The utility model is through being provided with cavity, first Teflon hydrophobic coating, first conveying component, second conveying component, slope and third Teflon hydrophobic coating, can greatly reduce the generation of water bead and water mist, and can be flow guided, avoid water bead drop to sample on, simultaneously by being provided with water scraping component, water bead can be cleaned.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of water circulation rain test chambers, specifically a water circulation rain test chamber. Background Technology

[0002] A water circulation rain test chamber is a specialized device used to simulate natural rain environments and test the waterproof performance of products. It typically consists of a water tank, spray device, delivery pump, and circulation device. Internally, it is equipped with a precision nozzle system with adjustable nozzle angle and flow rate, capable of generating water flows of varying intensities and angles according to preset parameters, simulating different weather conditions from drizzle to heavy rain. However, during use, the water circulation rain test chamber experiences a large temperature difference between the inside and outside, and the inner wall temperature is lower than the dew point temperature, leading to condensation. The resulting water droplets or mist may accidentally wet non-target areas of the sample, causing misjudgments. Therefore, we have proposed a water circulation rain test chamber. Utility Model Content

[0003] The present invention aims to solve the problems existing in the prior art or related technologies.

[0004] Therefore, the technical solution adopted by this utility model is as follows: a water circulation rain test chamber, including a water tank, a test chamber body, a first conveying component, a second conveying component, a cylinder, and a top plate. The test chamber body is fixedly installed at the top of the water tank. A cavity is fixedly installed inside the test chamber body. A first Teflon hydrophobic coating is fixedly installed on the inner side of the test chamber body. The first conveying component includes a first conveying pipe fixedly installed at the rear side of the water tank and a first conveying pump fixedly installed on the first conveying pipe. The second conveying component includes a second conveying pipe fixedly installed at the rear side of the test chamber body and a second conveying pump fixedly installed on the second conveying pipe. The cylinder is fixedly installed on both sides of the test chamber body. The top plate is fixedly installed at the top of the cylinder. An inclined surface is fixedly installed on the inner side of the top plate. A third Teflon hydrophobic coating is fixedly installed on the surface of the inclined surface.

[0005] Preferably, a water inlet pipe and a sewage outlet pipe are fixedly installed on the rear side of the water tank in sequence, and a first valve and a second valve are fixedly installed on the water inlet pipe and the sewage outlet pipe respectively.

[0006] Preferably, an observation window is fixedly provided at the front end of the test chamber, a second Teflon hydrophobic coating is fixedly provided on the inner side of the observation window, and a reflux pipe is fixedly provided at the front end of the test chamber, with the bottom of the reflux pipe fixedly connected to the water tank.

[0007] Preferably, the second delivery pipe has the same structure as the first delivery pipe, and both the second delivery pipe and the first delivery pipe are flexible hoses.

[0008] Preferably, a spray pipe is fixedly installed on the inner side of the top plate, and a plurality of nozzles are fixedly installed on the spray pipe, and the spray pipe is fixedly connected to the second conveying pipe.

[0009] Preferably, it also includes a wiper assembly, which includes a drive motor fixedly mounted at the front end of the test chamber, a rotating rod fixedly mounted at the output end of the drive motor, and a rubber strip fixedly mounted on the inner side of the rotating rod.

[0010] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: The first conveying pump of the first conveying component of this utility model can convey water from the water tank to the cavity through the first conveying pipe, and then the water in the cavity is conveyed to the nozzle for spraying through the second conveying component. Due to the heat transfer property, the temperature of the inner wall of the test chamber is close to the temperature of the water, which greatly reduces the generation of water droplets or water mist. In addition, the first Teflon hydrophobic coating can repel water, further avoiding the generation of water droplets. At the same time, the third Teflon hydrophobic coating can reduce the generation of water droplets on the top plate. The inclined surface can guide the flow, avoiding the problem of water droplets or water mist accidentally wetting the non-target area of ​​the sample and causing misjudgment. The accuracy is high. Then, the drive motor of the scraping component can be operated. The operating drive motor can drive the rubber strip to rotate through the rotating rod, thereby scraping off the water droplets on the observation window for easy observation. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of the present invention from one perspective; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This utility model Figure 1 Schematic diagram of the structure of the central glass window; Figure 4 This utility model Figure 1 Schematic diagram of the top slab structure; Figure 5 This utility model Figure 1 Schematic diagram of the middle wiper assembly; Figure label: 100. Water tank; 101. Water inlet pipe; 102. First valve; 103. Drain pipe; 104. Second valve; 200. Test chamber; 201. Cavity; 202. First Teflon hydrophobic coating; 203. Observation window; 204. Second Teflon hydrophobic coating; 205. Return pipe; 300. First conveying assembly; 301. First conveying pipe; 302. First conveying pump; 400. Second conveying assembly; 401. Second conveying pipe; 402. Second conveying pump; 500, cylinder; 600. Top plate; 601. Spray pipe; 602. Nozzle; 603. Sloping surface; 604. Third Teflon hydrophobic coating; 700. Wiper assembly; 701. Drive motor; 702. Rotary bar; 703. Rubber strip. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0013] The following describes some embodiments of the present invention with reference to the accompanying drawings, providing a water circulation rain test chamber.

[0014] Example 1: Reference Figure 1-5 This is the first embodiment of the present invention. This embodiment provides a water circulation rain test chamber, including a water tank 100, a test chamber body 200, a first conveying component 300, a second conveying component 400, a cylinder 500, and a top plate 600.

[0015] Specifically, a water inlet pipe 101 and a drain pipe 103 are fixedly installed on the rear side of the water tank 100. A first valve 102 and a second valve 104 are fixedly installed on the water inlet pipe 101 and the drain pipe 103, respectively. In use, the water inlet pipe 101 can be opened by rotating the first valve 102 so that clean water can be injected into the water tank 100 through the water inlet pipe 101. Then, the drain pipe 103 can be opened by rotating the second valve 104 so that sewage can be discharged through the drain pipe 103.

[0016] Specifically, the test chamber 200 is fixedly installed at the top of the water tank 100. A cavity 201 is fixedly installed inside the test chamber 200. A first Teflon hydrophobic coating 202 is fixedly installed on the inner side of the test chamber 200. An observation window 203 is fixedly installed at the front end of the test chamber 200. A second Teflon hydrophobic coating 204 is fixedly installed on the inner side of the observation window 203. A return pipe 205 is fixedly installed at the front end of the test chamber 200. The bottom of the return pipe 205 is fixedly connected to the water tank 100. During use, a certain amount of water can be stored through the cavity 201, making the temperature of the inner wall of the test chamber 200 close to the temperature of the water, greatly reducing the generation of water droplets or mist. The first Teflon hydrophobic coating 202 further prevents water droplet formation. The interior of the test chamber 200 can be observed through the observation window 203 for testing purposes. Afterwards, the water used in the test can be transported back to the water tank 100 through the return pipe 205 for water recycling.

[0017] Specifically, the first conveying assembly 300 includes a first conveying pipe 301 fixedly installed on the rear side of the water tank 100 and a first conveying pump 302 fixedly installed on the first conveying pipe 301. In use, by controlling the operation of the first conveying pump 302, water in the water tank 100 can be conveyed into the cavity 201 for use.

[0018] Specifically, the second conveying assembly 400 includes a second conveying pipe 401 fixedly installed on the rear side of the test chamber 200 and a second conveying pump 402 fixedly installed on the second conveying pipe 401. The second conveying pipe 401 has the same structure as the first conveying pipe 301. Both the second conveying pipe 401 and the first conveying pipe 301 are flexible hoses. In use, the water in the cavity 201 can be conveyed to the top plate 600 by controlling the second conveying pump 402 for spraying tests.

[0019] Specifically, cylinders 500 are fixedly installed on both sides of the test chamber 200. During use, cylinders 500 can drive the top plate 600 to move up and down so that the top plate 600 can seal the test chamber 200.

[0020] Specifically, the top plate 600 is fixedly installed on the top of the cylinder 500. An inclined surface 603 is fixedly installed on the inner side of the top plate 600. A third Teflon hydrophobic coating 604 is fixedly installed on the surface of the inclined surface 603. A spray pipe 601 is fixedly installed on the inner side of the top plate 600, and several nozzles 602 are fixedly installed on the spray pipe 601. The spray pipe 601 is fixedly connected to the second delivery pipe 401. In use, the inclined surface 603 can guide the flow to avoid water droplets or water mist from accidentally wetting non-target areas of the sample and causing misjudgment. The third Teflon hydrophobic coating 604 is hydrophobic, reducing the generation of water droplets or water mist. The spray pipe 601 can deliver water to the nozzles 602 for spraying to conduct a spray test.

[0021] Example 2: Reference Figure 1 and Figure 4 This is the second embodiment of the present invention, which differs from the first embodiment in that it also includes a wiper assembly 700. The wiper assembly 700 includes a drive motor 701 fixedly mounted at the front end of the test chamber 200, a rotating rod 702 fixedly mounted at the output end of the drive motor 701, and a rubber strip 703 fixedly mounted inside the rotating rod 702. In use, the drive motor 701 can be controlled to operate. The operating drive motor 701 can drive the rubber strip 703 to rotate through the rotating rod 702. The rotation of the rubber strip 703 will wipe away the water droplets on the observation window 203 so that the test situation can be observed through the observation window 203.

[0022] The working principle and usage process of this utility model are as follows: First, control the cylinder 500 to extend. The extended cylinder 500 can drive the top plate 600 to move upwards. After moving to a suitable height, the item to be tested can be placed inside the test chamber 200. Then, control the cylinder 500 to retract. The retracted cylinder 500 can drive the top plate 600 to move downwards until the top plate 600 seals the test chamber 200. Then, control the first conveying pump 302 of the first conveying assembly 300 to operate. The operating first conveying pump 302 can convey water from the water tank 100 to the cavity 201 of the test chamber 200 through the first conveying pipe 301. Then, control the second conveying pump 402 of the second conveying assembly 400 to operate. The operating second conveying pump 402 can convey water from the cavity 201 to the spray pipe 601 and nozzle 602 through the second conveying pipe 401 for spraying, thus conducting a rain test. After the test, the water returns to the water tank 100 through the return pipe 205.

[0023] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water circulation rain test chamber, characterized in that, include: Water tank (100); The test chamber (200) is fixedly installed at the top of the water tank (100). A cavity (201) is fixedly installed inside the test chamber (200). A first Teflon hydrophobic coating (202) is fixedly installed on the inner side of the test chamber (200). The first delivery assembly (300) includes a first delivery pipe (301) fixedly disposed on the rear side of the water tank (100) and a first delivery pump (302) fixedly disposed on the first delivery pipe (301). The second delivery assembly (400) includes a second delivery pipe (401) fixedly disposed on the rear side of the test chamber (200) and a second delivery pump (402) fixedly disposed on the second delivery pipe (401). Cylinders (500) are fixedly installed on both sides of the test chamber (200); A top plate (600) is fixedly disposed on the top of the cylinder (500). An inclined surface (603) is fixedly disposed on the inner side of the top plate (600), and a third Teflon hydrophobic coating (604) is fixedly disposed on the surface of the inclined surface (603).

2. The water circulation rain test chamber according to claim 1, characterized in that, A water inlet pipe (101) and a sewage outlet pipe (103) are fixedly installed on the rear side of the water tank (100). A first valve (102) and a second valve (104) are fixedly installed on the water inlet pipe (101) and the sewage outlet pipe (103), respectively.

3. The water circulation rain test chamber according to claim 1, characterized in that, An observation window (203) is fixedly provided at the front end of the test chamber (200), and a second Teflon hydrophobic coating (204) is fixedly provided on the inner side of the observation window (203). A return pipe (205) is fixedly provided at the front end of the test chamber (200), and the bottom of the return pipe (205) is fixedly connected to the water tank (100).

4. The water circulation rain test chamber according to claim 1, characterized in that, The second delivery pipe (401) has the same structure as the first delivery pipe (301), and both the second delivery pipe (401) and the first delivery pipe (301) are flexible hoses.

5. A water circulation rain test chamber according to claim 1, characterized in that, A jet pipe (601) is fixedly installed on the inner side of the top plate (600), and a plurality of nozzles (602) are fixedly installed on the jet pipe (601). The jet pipe (601) is fixedly connected to the second conveying pipe (401).

6. A water circulation rain test chamber according to claim 1, characterized in that, It also includes a wiper assembly (700), which includes a drive motor (701) fixedly installed at the front end of the test chamber (200), a rotating rod (702) fixedly installed at the output end of the drive motor (701), and a rubber strip (703) fixedly installed inside the rotating rod (702).