A waterproof and breathable membrane water tightness testing apparatus

By designing a transparent test frame, a clamping system, and a water pumping device, the problems of rapid material replacement and automatic water supply in the water tightness testing equipment for waterproof and breathable membranes were solved, achieving an efficient testing process and environmentally friendly water source management.

CN224933836UActive Publication Date: 2026-11-03KUNSHAN WANGXIANGTAI ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202522542370.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-30
Publication Date
2026-11-03
Estimated Expiration
2035-11-30

AI Technical Summary

Technical Problem

Existing waterproof and breathable membrane water tightness testing equipment lacks quick replacement of test materials and automatic water supply functions, which increases the complexity of the work process.

Method used

A water tightness testing device for a waterproof and breathable membrane was designed, comprising a transparent test frame, a pumping device, a clamping system, and a collection frame. This device enables rapid replacement of test materials and automatic water supply. The clamping system securely holds and replaces the membrane through locking and pulling, while the pumping device provides rapid water supply.

Benefits of technology

It enables rapid replacement of test materials and automatic water supply, reduces work complexity, improves work efficiency, supports water reuse, and enhances the environmental friendliness of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterproof and breathable membrane water tightness test equipment belongs to waterproof and breathable membrane field, wherein including transparent test frame, the top fixed coupling of transparent test frame has the liquid outlet pipe, through the jerk of upper clamp handle and lower clamp handle when pressing the clamping arc block, the membrane body after testing can be drawn, and the upper clamp frame and lower clamp frame of clamping new test membrane body are inserted into the inside of transparent test frame immediately, thereby the quick replacement of test material is completed, and the water liquid that pumping equipment draws is transported to the inside of transparent test frame through the liquid outlet pipe, and the waterproof condition of membrane body can be observed through transparent test frame, can make waterproof and breathable membrane water tightness test equipment use can provide the effect of quick replacement test material, can provide the effect of pre -preparation to the material that needs testing, speeds up the work progress of subsequent work, also can provide the effect of quick automatic water supply for the test process, reduces the work complexity of whole work.
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Description

Technical Field

[0001] This utility model relates to the field of waterproof and breathable membrane technology, specifically a water tightness testing device for waterproof and breathable membranes. Background Technology

[0002] Waterproof and breathable membranes are functional film materials that combine waterproofing and breathability. They can effectively block liquid water penetration while allowing gaseous water molecules to pass through freely. In order to test the water permeability of waterproof and breathable membranes, water tightness testing equipment is required.

[0003] An investigation revealed that a Chinese utility model patent (CN110530584B) discloses an automated testing method for the sealing performance of a waterproof and breathable membrane. This method involves splitting a vacuum chamber into a first vacuum chamber and a second vacuum chamber, and adding a leak detector to the first vacuum chamber to detect leaks in the product. This allows for pre-judgment of leaks and prevents liquid from entering the pressure sensor and damaging the instrument in case of a leak. The method also includes reasonable calculations and design of the vacuum chamber and pressure to ensure that when the valve between the two vacuum chambers is opened, a differential pressure sensor is used to improve testing sensitivity and limits. The pressure in the vacuum chamber is less than 2 kPa, ensuring rapid evaporation of leaked water droplets. Furthermore, the structural design of the first vacuum chamber incorporates an automatic drainage function, enabling automated operation and facilitating mass production testing requirements.

[0004] However, most of the waterproof and breathable membrane water tightness testing equipment currently on the market does not provide the ability to quickly change test materials or provide pre-preparation for the materials to be tested, which affects the progress of subsequent work. It also does not provide the ability to quickly and automatically supply water during the testing process, which increases the overall complexity of the work.

[0005] Therefore, this utility model provides a water tightness testing device for waterproof and breathable membranes to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved This invention provides a water tightness testing device for waterproof and breathable membranes, aiming to solve the problems mentioned in the background art.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a waterproof and breathable membrane water tightness testing device, comprising a transparent testing frame, a liquid outlet pipe fixedly connected to the top of the transparent testing frame, a water pumping device fixedly connected to one end of the liquid outlet pipe, a liquid pumping threaded pipe fixedly connected to the top of the water pumping device, a rotating threaded lock movably connected to the outer wall of the liquid pumping threaded pipe, a lower clamping frame movably connected inside the transparent testing frame, a small hinge fixedly connected to one side of the lower clamping frame, an upper clamping frame fixedly connected to one side of the small hinge, a closing clamping strip fixedly connected to the bottom of the upper clamping frame, and an inner spring fixedly connected inside the upper clamping frame.

[0008] One end of the inner spring is fixedly connected to a locking arc block, the top of the upper clamping frame is fixedly connected to a leak-proof rubber ring, one side of the upper clamping frame is fixedly connected to an upper clamping handle, the top of the upper clamping handle is movably connected to a locking bolt, and the outer wall of the locking bolt is movably connected to a lower clamping handle. This allows the waterproof and breathable membrane water tightness testing equipment to provide a quick replacement of test materials, provides pre-preparation for the materials to be tested, speeds up the subsequent work process, and provides a quick and automatic water supply for the testing process, reducing the overall work complexity.

[0009] As a preferred technical solution of this application, a bottom passage pipe is fixedly connected to the bottom of the transparent test frame, and the bottom passage pipe is a transparent glass pipe.

[0010] As a preferred technical solution of this application, a side support frame is fixedly connected to one side of the transparent test frame, and a weight-reducing rectangular opening is provided on the side of the side support frame.

[0011] As a preferred technical solution of this application, a middle partition is fixedly connected to the bottom of the side support frame, and a circular opening is provided at the top of the middle partition.

[0012] As a preferred technical solution of this application, the bottom of the partition plate is fixedly connected to a bottom support frame, and the length and width of the bottom support frame are both smaller than the length and width of the partition plate.

[0013] As a preferred technical solution of this application, a collection frame is fixedly connected inside the bottom support frame, and a frame handle is fixedly connected to one side of the collection frame.

[0014] As a preferred technical solution of this application, the interior of the transparent test frame is hollow, and the material of the transparent test frame is transparent glass. Beneficial effects

[0015] This invention provides a waterproof and breathable membrane water tightness testing device. By pressing the locking arc block, the upper and lower clamps are pulled out, allowing the tested membrane to be extracted. The upper and lower clamps holding the new test membrane are then immediately inserted into the transparent test frame, thus completing the rapid replacement of the test material. The water pumping device delivers the extracted water to the inside of the transparent test frame through the outlet pipe, allowing the waterproof condition of the membrane to be observed through the transparent test frame. This waterproof and breathable membrane water tightness testing device provides the effect of rapid replacement of test materials, provides a pre-preparation effect for the materials to be tested, speeds up the subsequent work process, and provides a rapid automatic water supply effect for the testing process, reducing the overall work complexity. This utility model provides a water tightness testing device for a waterproof and breathable membrane. Water that permeates through the membrane can also fall into the inside of the collection frame through the lower pipe. Moving the collection frame can recycle and reuse the water source. When the test is completed and the next test material needs to be replaced, it can provide a quick collection effect for the test water source of the structure, which facilitates the subsequent reuse of the water source and improves the overall environmental friendliness of the structure. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a bottom view of the structure of this utility model; Figure 3 This is a side sectional view of the structure of this utility model; Figure 4 This is a diagram illustrating the upper clamping frame connection structure of this utility model; Figure 5 This is the utility model Figure 4 Side section view of the middle structure.

[0017] In the picture: 1. Transparent test frame; 2. Discharge pipe; 3. Pumping equipment; 4. Pumping threaded pipe; 5. Rotary threaded lock; 6. Lower clamping frame; 7. Small hinge; 8. Upper clamping frame; 9. Closing clamp; 10. Inner spring; 11. Engaging arc block; 12. Leak-proof rubber ring; 13. Upper clamping handle; 14. Locking bolt; 15. Lower clamping handle; 16. Lower through pipe; 17. Side support frame; 18. Middle partition; 19. Bottom support frame; 20. Collection frame; 21. Frame handle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5 The present invention provides a technical solution: a waterproof and breathable membrane water tightness testing device, including a transparent test frame 1, a liquid outlet pipe 2 fixedly connected to the top of the transparent test frame 1, a water pumping device 3 fixedly connected to one end of the liquid outlet pipe 2, a liquid pumping threaded pipe 4 fixedly connected to the top of the water pumping device 3, a rotating threaded lock 5 movably connected to the outer wall of the liquid pumping threaded pipe 4, and a lower clamping frame 6 movably connected inside the transparent test frame 1.

[0020] In this embodiment, a bottom pipe 16 is fixedly connected to the bottom of the transparent test frame 1, and the bottom pipe 16 is a transparent glass pipe. A side support frame 17 is fixedly connected to one side of the transparent test frame 1, and a weight-reducing rectangular opening is provided on the side of the side support frame 17.

[0021] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, a small hinge 7 is fixedly connected to one side of the lower clamping frame 6, an upper clamping frame 8 is fixedly connected to one side of the small hinge 7, a closing clamping strip 9 is fixedly connected to the bottom of the upper clamping frame 8, and an inner spring 10 is fixedly connected inside the upper clamping frame 8.

[0022] In this embodiment, a middle partition 18 is fixedly connected to the bottom of the side support frame 17, and a circular opening is provided at the top of the middle partition 18. A bottom support frame 19 is fixedly connected to the bottom of the middle partition 18, and the length and width of the bottom support frame 19 are both smaller than the length and width of the middle partition 18.

[0023] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, one end of the inner spring 10 is fixedly connected to a locking arc block 11, the top of the upper clamping frame 8 is fixedly connected to a leak-proof rubber ring 12, one side of the upper clamping frame 8 is fixedly connected to an upper clamping handle 13, the top of the upper clamping handle 13 is movably connected to a locking bolt 14, and the outer wall of the locking bolt 14 is movably connected to a lower clamping handle 15. This allows the waterproof and breathable membrane water tightness testing equipment to provide the effect of quickly changing the test material, to provide the effect of pre-preparation for the material to be tested, to speed up the subsequent work process, and to provide the effect of rapid automatic water supply for the testing process, thereby reducing the overall work complexity.

[0024] In this embodiment, a collection frame 20 is fixedly connected inside the bottom support frame 19, and a frame handle 21 is fixedly connected to one side of the collection frame 20. The interior of the transparent test frame 1 is hollow, and the material of the transparent test frame 1 is transparent glass.

[0025] like Figure 1-5 As shown, when a user needs to use a waterproof and breathable membrane water tightness testing device, the rotation of the screw lock 5 locks the liquid extraction threaded pipe 4 with the external water supply pipe. The waterproof and breathable membrane to be tested is placed on the top of the groove of the lower clamping frame 6. The rotation of the small hinge 7 closes the upper clamping frame 8 and the lower clamping frame 6. Then, the rotation of the locking bolt 14 closes the upper clamping handle 13 and the lower clamping handle 15, thus tightly closing the upper clamping frame 8 and the lower clamping frame 6. When the closing clamping strip 9 is inserted into the top groove of the lower clamping frame 6, the membrane is clamped in, thus confining the membrane between the upper clamping frame 8 and the lower clamping frame 6. The upper clamping frame 8 and the lower clamping frame 6 are inserted into the side opening of the transparent test frame 1. When the arc surface of the locking arc block 11 contacts the transparent test frame 1, it is pressed. When the inner spring 10 is compressed and contracts, the locking arc block 11 retracts into the upper clamping frame 8 until it pops out on the other side of the transparent test frame 1. This stabilizes the position of the membrane. The pumping device 3 then starts working. The pumping device 3 delivers the pumped water through the outlet pipe 2 into the transparent test frame 1. The waterproof condition of the membrane can then be observed through the transparent test frame 1. The water passing through the membrane can also fall into the collection frame 20 through the lower pipe 16. When the test is completed and the next test material needs to be replaced, the upper clamping handle 15 and the lower clamping handle 13 are pulled out when the locking arc block 11 is pressed. The tested membrane can then be pulled out. The upper clamping frame 8 and the lower clamping frame 6, which hold the new test membrane, are then immediately inserted into the transparent test frame 1 to complete the rapid replacement of the test material.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A waterproof and breathable membrane water tightness testing device, comprising a transparent test frame (1), characterized in that: The top of the transparent test frame (1) is fixedly connected to a liquid outlet pipe (2), one end of the liquid outlet pipe (2) is fixedly connected to a water pumping device (3), the top of the water pumping device (3) is fixedly connected to a liquid pumping threaded pipe (4), the outer wall of the liquid pumping threaded pipe (4) is movably connected to a rotating threaded lock (5), the inside of the transparent test frame (1) is movably connected to a lower clamping frame (6), one side of the lower clamping frame (6) is fixedly connected to a small hinge (7), one side of the small hinge (7) is fixedly connected to an upper clamping frame (8), the bottom of the upper clamping frame (8) is fixedly connected to a closing clamping strip (9), and the inside of the upper clamping frame (8) is fixedly connected to an inner spring (10). One end of the inner spring (10) is fixedly connected to a locking arc block (11), the top of the upper clamping frame (8) is fixedly connected to a leak-proof rubber ring (12), one side of the upper clamping frame (8) is fixedly connected to an upper clamping handle (13), the top of the upper clamping handle (13) is movably connected to a locking bolt (14), and the outer wall of the locking bolt (14) is movably connected to a lower clamping handle (15).

2. The waterproof and breathable membrane water tightness testing device according to claim 1, characterized in that: The bottom of the transparent test frame (1) is fixedly connected to a downpipe (16), and the downpipe (16) is a transparent glass pipe.

3. The water tightness testing device for a waterproof and breathable membrane according to claim 1, characterized in that: The transparent test frame (1) is fixedly connected to a side support frame (17) on one side, and the side of the side support frame (17) is provided with a weight-reducing rectangular opening.

4. The water tightness testing device for a waterproof and breathable membrane according to claim 3, characterized in that: The bottom of the side support frame (17) is fixedly connected to a middle partition plate (18), and the top of the middle partition plate (18) is provided with a circular opening.

5. The water tightness testing device for a waterproof and breathable membrane according to claim 4, characterized in that: The bottom of the partition plate (18) is fixedly connected to a bottom support frame (19), and the length and width of the bottom support frame (19) are both smaller than the length and width of the partition plate (18).

6. The water tightness testing device for a waterproof and breathable membrane according to claim 5, characterized in that: A collection frame (20) is fixedly connected inside the bottom support frame (19), and a frame handle (21) is fixedly connected to one side of the collection frame (20).

7. The water tightness testing device for a waterproof and breathable membrane according to claim 1, characterized in that: The interior of the transparent test frame (1) is hollow, and the material of the transparent test frame (1) is transparent glass.

Citation Information

Patent Citations

  • An automated testing method and equipment for the sealing performance of waterproof and breathable membranes

    CN110530584B