Waterproof coiled material detection device

By combining an electric push rod with a multi-point pressing structure, a pressure regulating valve, and a nozzle, the stress and water flow conditions of the waterproof membrane under actual working conditions are simulated. This solves the problem of the existing device's single simulation and achieves the authenticity of the test results and the efficient utilization of water resources.

CN224136802UActive Publication Date: 2026-04-17CHONGQING QINGDAYUAN TESTING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING QINGDAYUAN TESTING TECHNOLOGY CO LTD
Filing Date
2025-06-12
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing waterproof membrane testing devices cannot accurately simulate the pressure and water flow conditions that the membrane is subjected to in actual use, making it difficult for the test results to reflect the true performance of the membrane under complex working conditions.

Method used

An electric push rod drives the pressure cap to precisely connect with the test cylinder. A multi-point pushing structure simulates mechanical loads, and water pressure and flow are adjusted by a pressure regulating valve and nozzle to achieve coordinated simulation of pressure and water flow. At the same time, a test return filter component is set up to recycle water resources and filter impurities.

Benefits of technology

It accurately simulates the stress state of rolled materials under complex working conditions, improves the authenticity and reliability of test results, realizes the efficient use of water resources, and reduces test costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterproof coiled material detection device, and belongs to the technical field of waterproof coiled material detection, the waterproof coiled material detection device is characterized by comprising a bottom plate, and the right side of the bottom plate is provided with a controller, the waterproof coiled material detection device is provided with a detection assembly and a detection cylinder, a waterproof coiled material is arranged on the top of the detection cylinder, and an electric push rod on the top of a support drives a gland to move downwards; the pressing cover is accurately butted with the inspection cylinder, the waterproof coiled material is fixed in a middle circulation area of the butting position of the pressing cover and the inspection cylinder, a multi-point pushing structure in the pressing cover is started to downwards push the coiled material in a multi-point mode, so that mechanical loads such as personnel walking and object extrusion in an actual scene are simulated, and meanwhile the controller adjusts the pushing force according to a preset program. In addition, the hose at the output end of the water pump is connected with the annular pipe and the spray head through the pressure regulating valve, the water flow pressure and flow can be flexibly regulated according to detection requirements, and multi-element water flow scenes such as rainstorm impact and hydrostatic pressure are accurately simulated.
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Description

Technical Field

[0001] This utility model relates to the field of waterproof membrane testing technology, and in particular to a waterproof membrane testing device. Background Technology

[0002] Waterproof membranes are mainly used in building walls, roofs, tunnels, highways, landfills, etc., to resist external rainwater and groundwater seepage. They are flexible building materials that can be rolled up and serve as a leak-proof connection between the foundation of the project and the building. They act as a barrier to waterproof the entire project and play a vital role in the overall project.

[0003] An existing patent (publication number: CN222579908U) discloses a waterproof membrane testing device. This utility model includes a base, a pressing component, and a testing component. The pressing component is disposed on the base, the testing component is disposed on the base, and the base is provided with a water supply component. The testing component includes an upper pressure cover and a test cylinder. The bottom wall of the test cylinder is provided with a support column, the support column is disposed on the base, and the upper pressure cover is disposed on the pressing component. The test cylinder is a hollow frustum-shaped structure with both the top and bottom walls open, and the upper pressure cover is a hollow frustum-shaped structure with the bottom wall open.

[0004] The waterproof membrane testing device in the aforementioned patent has a dual functional defect of pressure simulation and water flow control. Specifically, the device only fixes the waterproof membrane by pressing down the upper cover, without setting up a structure to simulate the pressure the membrane bears in actual use. The simple fixation and water pressure cannot cover the stress requirements of real-world scenarios. Furthermore, the water supply component only draws water into the body through a water pump, without setting up flow regulation or pressure control devices. It cannot accurately simulate diverse water flow scenarios such as rainstorm impact and hydrostatic pressure, resulting in a disconnect between the testing conditions and the actual application environment. The test results cannot fully reflect the true performance of the membrane under complex working conditions.

[0005] Therefore, a waterproof membrane testing device is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a waterproof membrane testing device that can solve the problem that the test results are difficult to fully reflect the true performance of the membrane under complex working conditions.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a waterproof membrane testing device, comprising a base plate, a controller disposed on the right side of the base plate, a water tank disposed on the top of the base plate, a test filter assembly disposed on the top of the water tank, an inspection cylinder disposed on the top of the test filter assembly, and a testing assembly disposed on the top of the water tank.

[0008] The detection assembly includes a bracket welded to the top of the water tank. Electric push rods are bolted to both sides of the top of the bracket. A pressure cap is bolted to the telescopic end of each electric push rod. An annular tube is installed inside the pressure cap, and a nozzle is connected to the bottom of the annular tube. A water pump is installed on the right side of the top of the base plate. The absorption end of the water pump is connected to the right side of the water tank. A flexible hose is connected to the output end of the water pump. A pressure regulating valve is connected to the top of the flexible hose. The end of the pressure regulating valve furthest from the hose is connected to the annular tube. A multi-point pushing structure is installed inside the pressure cap.

[0009] Preferably, the test back-filtration assembly includes a funnel welded to the middle of the top of the water tank, and an iron ring is glued to the outer side of the top of the funnel.

[0010] Preferably, the funnel is provided with a return water hopper inside, and a return water filter screen is fixedly connected inside the return water hopper, with the return water filter screen located at the bottom of the test cylinder.

[0011] Preferably, a paper measuring structure is provided at the top of the iron ring, and the paper measuring structure is located at the bottom of the inspection cylinder.

[0012] Preferably, the multi-point pushing structure includes an electric telescopic rod bolted to the top of the pressure cap, the electric telescopic rod being electrically connected to a controller, and the telescopic end of the electric telescopic rod penetrating through the top of the pressure cap.

[0013] Preferably, the telescopic end of the electric telescopic rod is bolted with a lifting multi-ring plate, and a pressing round head is welded to the bottom of the lifting multi-ring plate.

[0014] Preferably, the paper test structure includes a magnetic mesh magnetically connected to the top of an iron ring, with dry paper disposed on the top of the magnetic mesh, and the dry paper located at the bottom of the test cylinder.

[0015] Preferably, the top of the magnetic mesh is magnetically connected to a closed iron mesh, which is located on top of the dry paper.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This application sets up a testing component and an inspection cylinder. The waterproof membrane is placed on top of the inspection cylinder, and the pressure cap is driven to move down by the electric push rod on the top of the bracket, so that the pressure cap and the inspection cylinder are precisely aligned. The waterproof membrane is fixed in the middle flow area of ​​the alignment position. The multi-point pushing structure inside the pressure cap is activated to push the membrane downward at multiple points, thereby simulating mechanical loads such as people walking and objects squeezing in real-world scenarios. At the same time, the controller adjusts the pushing force according to a preset program to achieve accurate simulation of different pressure conditions. In addition, the hose at the output end of the water pump is connected to the ring pipe and the nozzle through a pressure regulating valve, which can flexibly adjust the water pressure and flow rate according to the testing requirements, accurately simulating various water flow scenarios such as rainstorm impact and static water pressure. The synergistic effect of pressure simulation and water flow control solves the problem of the single working condition simulation of existing devices. Furthermore, it ensures that the water is confined between the membrane and the pressure cap and does not splash out, making the testing conditions closer to the actual complex environment and significantly improving the authenticity and reliability of the test results.

[0018] 2. This application sets up a test return filter component, which is located at the bottom of the test cylinder and has a dual function. First, it contains paper and observes the moisture content of the paper to help determine whether the roll material is leaking. Second, after the test is completed, it filters and recycles the water, trapping roll material debris and impurities, so that the clean water flows back to the water tank for recycling. This design ensures the accuracy of the test while achieving efficient use of water resources, reducing waste and lowering the test cost. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of the waterproof membrane testing device of this utility model;

[0020] Figure 2 This is a structural diagram of the detection component of this utility model;

[0021] Figure 3 This is a structural diagram of the multi-point pressing structure of this utility model;

[0022] Figure 4 This is a structural diagram of the test return filter assembly of this utility model;

[0023] Figure 5 This is a structural diagram of the paper measuring structure of this utility model;

[0024] Figure 6 This is a structural diagram of the inspection cylinder of this utility model.

[0025] In the diagram: 1. Base plate; 2. Controller; 3. Water tank; 4. Test return filter assembly; 41. Funnel; 42. Iron ring; 43. Return water hopper; 44. Return water filter screen; 45. Paper test structure; 451. Magnetic mesh; 452. Dry paper; 453. Enclosed iron mesh; 5. Test cylinder; 6. Detection assembly; 61. Support; 62. Electric push rod; 63. Pressure cap; 64. Ring pipe; 65. Nozzle; 66. Water pump; 67. Hose; 68. Pressure regulating valve; 69. Multi-point push-press structure; 691. Electric telescopic rod; 692. Lifting multi-ring plate; 693. Downward pressing round head. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-6 The present invention provides the following technical solution:

[0028] A waterproof membrane testing device includes a base plate 1, a controller 2 on the right side of the base plate 1, a water tank 3 on the top of the base plate 1, a test filter assembly 4 on the top of the water tank 3, an inspection cylinder 5 on the top of the test filter assembly 4, and a testing assembly 6 on the top of the water tank 3.

[0029] The detection component 6 includes a bracket 61 welded to the top of the water tank 3. Electric push rods 62 are bolted to both sides of the top of the bracket 61. The electric push rods 62 are electrically connected to the controller 2. A pressure cap 63 is bolted to the telescopic end of the electric push rod 62. A ring pipe 64 is provided inside the pressure cap 63. A nozzle 65 is connected to the bottom of the ring pipe 64. A water pump 66 is provided on the right side of the top of the base plate 1. The absorption end of the water pump 66 is connected to the right side of the water tank 3. A hose 67 is connected to the output end of the water pump 66. A pressure regulating valve 68 is connected to the top of the hose 67. The end of the pressure regulating valve 68 away from the hose 67 is connected to the ring pipe 64. A multi-point pushing structure 69 is provided inside the pressure cap 63.

[0030] In this embodiment: by setting up controller 2, water tank 3, test filter assembly 4, inspection cylinder 5, and detection assembly 6, the waterproof membrane is first placed on top of the inspection cylinder 5. Controller 2 activates electric push rod 62 to drive the pressure cap 63 downward, so that the pressure cap 63 and the inspection cylinder 5 are perfectly aligned, fixing the waterproof membrane at the middle flow position of the alignment between the pressure cap 63 and the inspection cylinder 5. Subsequently, according to the test requirements, the multi-point pushing structure 69 inside the pressure cap 63 is activated to push the waterproof membrane downward, simulating the mechanical loads it bears in real-world scenarios, such as personnel movement and object compression. Controller 2 can adjust the pushing force of the multi-point pushing structure 69 according to a preset program to accurately simulate different pressure conditions. At the same time, water pump 66 starts, and its output hose... 67 connects to pressure regulating valve 68, which flexibly adjusts the water pressure and flow rate of ring pipe 64 and nozzle 65 according to testing requirements, accurately simulating diverse water flow scenarios such as rainstorm impact and static water pressure. The combination of pressure simulation and water flow control makes the testing conditions more closely resemble actual complex working conditions, ensuring the authenticity and reliability of subsequent test results. Furthermore, during the testing process, the test return filter assembly 4 located at the bottom of the test cylinder 5 can be used to detect whether the waterproof membrane leaks. After the test is completed, the water is filtered and recycled, trapping any membrane debris, impurities, etc. that may have been mixed in during the testing process. The filtered water is returned to water tank 3 for recycling. While ensuring the cleanliness of the testing water, this achieves efficient use of water resources, reduces waste, and lowers testing costs.

[0031] Specifically, such as Figure 4 As shown, the test back-filter assembly 4 includes a funnel 41 welded to the middle of the top of the water tank 3, and an iron ring 42 is glued to the outer side of the top of the funnel 41.

[0032] Specifically, such as Figure 4 As shown, a return water bucket 43 is provided inside the funnel 41, and a return water filter 44 is fixedly connected inside the return water bucket 43. The return water filter 44 is located at the bottom of the test cylinder 5.

[0033] Specifically, such as Figure 4 As shown, a paper measuring structure 45 is provided on the top of the iron ring 42, and the paper measuring structure 45 is located at the bottom of the inspection cylinder 5.

[0034] In this embodiment: by setting up the test return filter assembly 4, when the waterproof membrane leaks, the paper test structure 45 located at the top of the iron ring 42 will be wetted to detect whether the waterproof membrane is leaking. After the test is completed, the paper test structure 45 is removed first and then the waterproof membrane is removed. The water located between the waterproof membrane and the pressure cap 63 falls into the test cylinder 5. Then the water drips from the bottom of the test cylinder 5 into the return water bucket 43 in the funnel 41. The return water filter screen 44 filters the water entering the test cylinder 5 and then traps impurities such as membrane fragments. The purified water flows back to the water tank 3 through the funnel 41 for recycling. The whole system works together to achieve the dual functions of leakage detection and water resource recycling.

[0035] Specifically, such as Figure 3 As shown, the multi-point pushing structure 69 includes an electric telescopic rod 691 bolted to the top of the pressure cover 63. The electric telescopic rod 691 is electrically connected to the controller 2, and the telescopic end of the electric telescopic rod 691 passes through the top of the pressure cover 63.

[0036] Specifically, such as Figure 3 As shown, the telescopic end of the electric telescopic pole 691 is bolted with a lifting multi-ring plate 692, and a pressing round head 693 is welded to the bottom of the lifting multi-ring plate 692.

[0037] In this embodiment: by setting up a multi-point pressing structure 69, the controller 2 controls the extension and retraction of the electric telescopic rod 691 according to the test requirements, drives the lifting multi-ring plate 692 to move up and down, so that the bottom welded pressing round head 693 applies pressure to the surface of the waterproof membrane. The pressing round head 693 in multiple directions forms a distributed loading point, which can simulate complex mechanical loads such as personnel walking and object compression. By adjusting the extension and retraction of the electric telescopic rod 691, the magnitude of the thrust can be precisely controlled, so as to realize the real reproduction of the stress state of the membrane under different working conditions.

[0038] Specifically, such as Figure 5 As shown, the paper test structure 45 includes a magnetic mesh 451 magnetically connected to the top of the iron ring 42, and a dry paper 452 is disposed on the top of the magnetic mesh 451. The dry paper 452 is located at the bottom of the test cylinder 5.

[0039] Specifically, such as Figure 5 As shown, a closed iron mesh 453 is magnetically connected to the top of the magnetic mesh 451, and the closed iron mesh 453 is located on top of the dry paper 452.

[0040] In this embodiment: by setting up a paper test structure 45, dry paper 452 is placed between the magnetic mesh 451 and the closed iron mesh 453, and fixed to the top of the iron ring 42 by magnetic adsorption. When the waterproof membrane leaks, the dripping water penetrates the dry paper 452, causing it to become damp and discolored. The tester can judge whether the membrane is leaking by observing the state of the dry paper 452. The closed iron mesh 453 can prevent the dry paper 452 from shifting while allowing water to pass through, ensuring that the test results are intuitive and reliable. At the same time, the magnetic connection method facilitates quick replacement of the dry paper 452, improving the test efficiency.

[0041] Working Principle: During the use of the waterproof membrane testing device, firstly, the waterproof membrane is placed on top of the testing cylinder 5. The controller 2 activates the electric push rods 62 on both sides of the top of the bracket 61, driving the pressure cap 63 to move downwards and perfectly align with the testing cylinder 5, thus fixing the waterproof membrane at the middle flow point where the pressure cap 63 and the testing cylinder 5 meet. Next, according to different testing requirements, the controller 2 controls the electric telescopic rod 691 inside the pressure cap 63 to extend and retract, driving the lifting multi-ring plate 692 to move up and down. This causes the bottom-welded downward pressure round heads 693 to apply pressure to the surface of the waterproof membrane. The multiple downward pressure round heads 693 form distributed loading points, and the thrust is adjusted... With a section range of 50-500N, it accurately simulates complex mechanical loads such as personnel walking and object compression in real-world scenarios. Furthermore, by adjusting the extension and retraction of the electric telescopic rod 691, the thrust can be precisely controlled, achieving a realistic reproduction of the stress state of the rolled material under different working conditions. Simultaneously, the water pump 66 on the top right side of the base plate 1 is activated. Water from the water tank 3 is absorbed by the water pump 66 and delivered to the pressure regulating valve 68 through the hose 67. According to the testing requirements, the pressure regulating valve 68 flexibly adjusts the water pressure and flow rate of the ring pipe 64 and the nozzle 65. The pressure regulating valve 68 can adjust the water pressure to 0.1-1MPa and the flow rate to 5-50L / min, accurately simulating the impact of sudden changes in pressure. The test simulates various water flow scenarios, including rain impact and hydrostatic pressure. The pressure simulation and water flow control work together to ensure that the testing conditions closely resemble complex real-world working conditions, guaranteeing the authenticity and reliability of the subsequent test results. During the testing process, if the waterproof membrane leaks, the dripping water penetrates the dry paper 452 located at the top of the iron ring 42 at the bottom of the test cylinder 5, causing it to become damp and discolored. The testers can determine whether the membrane is leaking by observing the state of the dry paper 452. This paper-testing structure 45 places the dry paper 452 between the magnetic mesh 451 and the closed iron mesh, and uses magnetic adsorption to fix it to the top of the iron ring 42. The closed iron mesh prevents the dry paper 452 from drying out. The paper 452 is shifted to ensure that the water can pass through smoothly, guaranteeing that the test results are intuitive and reliable. At the same time, the magnetic connection facilitates the quick replacement of the dry paper 452, improving the testing efficiency. After the test is completed, the paper test structure 45 is removed first, and then the waterproof membrane is removed. At this time, the water between the waterproof membrane and the pressure cap 63 falls into the test cylinder 5 and drips from the bottom of the test cylinder 5 into the return water bucket 43 in the funnel 41. The return water filter 44 inside the return water bucket 43 filters the water and traps impurities such as membrane fragments mixed in during the test. The purified water flows back to the water tank 3 through the funnel 41 for recycling. The test return filter assembly 4 thus realizes the dual functions of leakage detection and water resource recovery.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 waterproofing membrane inspection device comprising a base plate, characterized in that: A controller is provided on the right side of the base plate, a water tank is provided on the top of the base plate, a test return filter assembly is provided on the top of the water tank, an inspection cylinder is provided on the top of the test return filter assembly, and a detection assembly is provided on the top of the water tank. The detection assembly includes a bracket welded to the top of the water tank. Electric push rods are bolted to both sides of the top of the bracket. A pressure cap is bolted to the telescopic end of each electric push rod. An annular tube is installed inside the pressure cap, and a nozzle is connected to the bottom of the annular tube. A water pump is installed on the right side of the top of the base plate. The absorption end of the water pump is connected to the right side of the water tank. A flexible hose is connected to the output end of the water pump. A pressure regulating valve is connected to the top of the flexible hose. The end of the pressure regulating valve furthest from the hose is connected to the annular tube. A multi-point pushing structure is installed inside the pressure cap.

2. The waterproofing membrane inspection apparatus of claim 1, wherein: The test back-filtration assembly includes a funnel welded to the middle of the top of the water tank, with an iron ring glued to the outer side of the top of the funnel.

3. A waterproofing membrane inspection apparatus as defined in claim 2, wherein: The funnel is equipped with a return water hopper inside, and a return water filter screen is fixedly connected inside the return water hopper. The return water filter screen is located at the bottom of the test cylinder.

4. The waterproofing membrane inspection apparatus of claim 2, wherein: A paper measuring structure is provided at the top of the iron ring, and the paper measuring structure is located at the bottom of the inspection cylinder.

5. The waterproofing membrane inspection device of claim 1, wherein: The multi-point pushing structure includes an electric telescopic rod bolted to the top of the pressure cap. The electric telescopic rod is electrically connected to the controller, and the telescopic end of the electric telescopic rod passes through the top of the pressure cap.

6. A waterproofing membrane inspection apparatus as defined in claim 5, wherein: The telescopic end of the electric telescopic rod is bolted with a lifting multi-ring plate, and a pressing round head is welded to the bottom of the lifting multi-ring plate.

7. A waterproofing membrane inspection apparatus as defined in claim 4, wherein: The paper test structure includes a magnetic mesh magnetically connected to the top of an iron ring, with dry paper placed on top of the magnetic mesh and located at the bottom of the test cylinder.

8. The waterproof membrane testing device according to claim 7, characterized in that: The top of the magnetic mesh is magnetically connected to a closed iron mesh, which is located on top of the dry paper.

Citation Information

Patent Citations

  • Waterproof coiled material detection device

    CN222579908U