A device for detecting the resistance to permeation of a waterproofing membrane and a method of using the same

Abstract

The present application belongs to the technical field of anti-permeability detection, and particularly relates to a waterproof roll anti-permeability detection device and a use method thereof. The present application provides a waterproof roll anti-permeability detection device and a use method thereof, which comprises: a workbench, wherein a supporting table and a water supply tank are arranged on the workbench; a water supply device, wherein colored water is arranged in the water supply device, and the water supply device is used for providing water to the waterproof roll; and a detection device, which is used for detecting the anti-permeability of the waterproof roll. When the waterproof roll is permeated, the colored water can permeate downward through the roll. Compared with traditional clear water, the colored water can be more obviously captured by the detection device in the initial stage of permeation, thereby effectively solving the problem of lagging judgment caused by the unobvious permeation phenomenon in the prior art. The detection device can directly detect the water permeating through the waterproof roll, ensuring the timeliness and accuracy of detection, and improving the efficiency and accuracy of the waterproof roll anti-permeability detection.

Description

Technical Field

[0001] This invention belongs to the field of waterproof membrane penetration testing technology, and particularly relates to a waterproof membrane penetration testing device and its usage method. Background Technology

[0002] Building waterproofing materials are the material foundation of waterproofing projects, serving as the primary barrier to prevent rainwater and groundwater infiltration from penetrating buildings and structures. The quality of waterproofing materials has a significant impact on the waterproofing project; therefore, testing the impermeability of building waterproofing materials is crucial. The existing patent CN120253612A discloses a testing device for the water resistance of waterproof membranes. The device includes a base with two guide rails mounted on it. A lifting plate is positioned between the two guide rails, and an upper testing cylinder is connected to the lifting plate. A lower testing cylinder is connected to the base and located directly below the upper testing cylinder. Drainage valves are connected to the lower parts of both the upper and lower testing cylinders. An air supply pipe and a water supply pipe are connected to the top of the upper testing cylinder. A flattening mechanism for flattening the waterproof membrane is provided between the upper and lower testing cylinders. This flattening mechanism allows the waterproof membrane to be pulled outwards and flattened as the upper testing cylinder moves down to cover the lower testing cylinder. This ensures the test area of ​​the waterproof membrane is flat and wrinkle-free, avoiding testing errors caused by wrinkles in the waterproof membrane. This improves the accuracy and reliability of the water resistance performance test, thus providing a true and objective reflection of the actual water resistance performance of the waterproof membrane. However, because the changes in waterproof membrane before and after penetration are relatively small, the phenomenon is not obvious when water first seeps from the upper surface to the lower surface. It is difficult for inspectors to observe it in a timely and accurate manner, which can easily lead to a delay in judgment and affect the timeliness and accuracy of the test results. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned technical problems by providing a waterproof membrane impermeability testing device and its usage method. This invention aims to solve the problems in existing testing devices where the initial penetration phenomenon of waterproof membranes is not obvious, making it difficult for testing personnel to observe it in a timely and accurate manner, resulting in delayed judgment and affecting the timeliness and accuracy of the test results.

[0004] In view of this, the present invention provides a waterproof membrane impermeability testing device and its method of use, comprising: A workbench, on which a support platform and a water supply tank are provided, a waterproof membrane is provided on the support platform, and the water supply tank is located above the support platform; A water supply device is installed on a water supply tank and contains colored water. The water supply device is used to supply water to the waterproof membrane. A testing device is installed inside the support platform and is used to test the impermeability of the waterproof membrane.

[0005] In this technical solution, colored water is placed in the water supply device. When the waterproof membrane is penetrated, the colored water will seep through the membrane. Compared with traditional clean water, colored water can be detected by the detection device more quickly and obviously in the early stage of penetration. This effectively solves the problem of delayed judgment caused by the unclear penetration phenomenon in the existing technology. The detection device is set inside the support platform and can directly detect the water that has penetrated the waterproof membrane, ensuring the timeliness and accuracy of the detection. This improves the efficiency and accuracy of the waterproof membrane's anti-penetration performance test.

[0006] Furthermore, the water supply device includes: The inner cylinder is installed inside the water supply tank. The inner cylinder has a downward opening. The bottom of the inner cylinder is sealed to the surface of the waterproof membrane. The inner cylinder is equipped with a water supply pipe and an air supply pipe, which are connected to the top of the water supply tank. A buffer assembly is disposed inside the inner cylinder and above the waterproof membrane. The buffer assembly is used to reduce the impact of water flow in the water supply tank on the surface of the waterproof membrane. A pressure-reducing component is disposed outside the inner cylinder and connected to the inner cylinder. The pressure-reducing component is used to regulate the water pressure inside the inner cylinder.

[0007] In this technical solution, the water supply pipe can inject a preset amount of colored water into the inner cylinder to provide a water source for testing; the air supply pipe can introduce gas into the inner cylinder to reduce the water pressure inside the inner cylinder; the buffer component can reduce the impact of the water flow in the water supply tank on the surface of the waterproof membrane, preventing the membrane from being deformed locally due to the impact of the water flow, thus affecting its original impermeability; the pressure reducing component can regulate the water pressure inside the inner cylinder to avoid damage to the membrane due to excessive water pressure.

[0008] Furthermore, the buffer component includes: A buffer plate is slidably disposed inside the inner cylinder along the axial direction of the inner cylinder. The buffer plate is conical, and its edge is in contact with the inner wall of the inner cylinder. Through holes are provided on the buffer plate, and multiple through holes are provided along the circumference of the buffer plate. A cleaning component is installed on the water supply tank and connected to a buffer plate. The cleaning component is used to clean residual pigment on the buffer plate.

[0009] In this technical solution, when colored water is injected into the inner cylinder, the water flow first impacts the buffer plate. Since the buffer plate is conical, it can disperse the water flow in all directions, reducing the direct impact of the water flow on specific points on the surface of the waterproof membrane. Multiple through holes allow the water flow to pass through slowly and evenly, further reducing the impact force when the water flow reaches the surface of the membrane, ensuring that the waterproof membrane is always in a stable stress state during the testing process. The cleaning component can clean the colored pigment that may remain on the surface of the buffer plate after the test, preventing cross-contamination of pigments from different batches of tests, and ensuring the independence and accuracy of each test.

[0010] Furthermore, the water supply tank includes an upper cylinder, a lower cylinder, and a sliding layer. The upper cylinder is disposed above the inner cylinder, the lower cylinder is disposed through the bottom of the inner cylinder, and the sliding layer is slidably disposed inside the circumferential wall of the upper cylinder.

[0011] In this technical solution, when the water supply tank supplies water and gas, the sliding layer slides towards the lower cylinder, so that the lower end of the sliding layer is sealed to the top of the lower cylinder, preventing water and gas leakage from the inner cylinder and ensuring stable pressure in the sealed cavity; after the test is completed, the sliding layer slides upward to release the seal with the lower cylinder, making it easier to clean the inside of the inner cylinder, and at the same time facilitating the discharge of gas and water from the inside of the inner cylinder.

[0012] Furthermore, the pressure-reducing component includes: A pressure-reducing chamber is provided between the inner wall of the water supply tank and the outer wall of the inner cylinder. A pressure-reducing plate is fixedly installed inside the pressure-reducing chamber. The inner wall of the pressure-reducing plate is in contact with the outer wall of the inner cylinder. The upper surface of the pressure-reducing plate is flush with the upper surface of the lower cylinder. A pressure-reducing hole is provided on the pressure-reducing plate. An exhaust pipe is fixedly installed on the circumferential wall at the bottom of the inner cylinder. One end of the exhaust pipe is connected through to the bottom of the lower cylinder. Multiple exhaust pipes are provided along the circumferential direction of the inner cylinder.

[0013] In this technical solution, when the water pressure inside the inner cylinder exceeds the preset threshold, some water or gas will enter the lower cylinder through the exhaust pipe, and then enter the pressure reducing chamber through the pressure reducing hole on the pressure reducing plate. At the same time, the pressure reducing chamber can temporarily store the overpressure fluid. After the pressure inside the inner cylinder returns to normal, some fluid can flow back to the inner cylinder through the pressure reducing hole, thereby achieving dynamic balance regulation of pressure and ensuring that the water pressure remains stable within the set range during the detection process.

[0014] Furthermore, the cleaning component: A scraper is rotatably mounted above the inner cylinder, with its lower end corresponding to the inclined surface of the buffer plate. A rotating mechanism is fixedly installed inside the upper cylinder and connected to the scraper. The rotating mechanism is used to drive the scraper to rotate along the circumference of the upper cylinder. A lifting mechanism is provided, which is located in the center of the upper cylinder and is fixedly connected to the buffer plate. The lifting mechanism is used to drive the buffer plate to slide up and down along the axis of the inner cylinder. A cleaning bucket is fixedly installed outside the water supply tank. A sliding groove is provided on the inner wall of the cleaning bucket along the circumferential direction. A sliding plate is slidably installed in the sliding groove. The bottom end of the sliding plate is in contact with the bottom surface of the cleaning bucket. A cleaning pipe is provided on the bottom surface of the cleaning bucket. A cleaning plate is disposed on a sliding plate, the bottom surface of the cleaning plate is in contact with the upper surface of the pressure reducing plate, and one end of the cleaning plate is in contact with the outer wall of the inner cylinder.

[0015] In this technical solution, the rotating mechanism and the lifting mechanism are common mechanisms, and will not be described in detail here. After the test is completed, the lifting mechanism is activated, which drives the buffer plate to slide upward along the inner cylinder axis so that the buffer plate is in close contact with the scraper surface. Then the rotating mechanism drives the scraper to rotate along the circumference of the upper cylinder. As the scraper rotates, its blades scrape off the colored pigments remaining on the surface of the buffer plate. The scraped pigment fragments fall onto the pressure reducing plate under the push of the scraper. During the rotation of the cleaning plate, the residue on the pressure reducing plate is scraped off and collected at the bottom of the cleaning bucket. During the sliding process of the sliding plate, the residue at the bottom of the cleaning bucket is pushed to the cleaning pipe and discharged through the cleaning pipe.

[0016] Furthermore, the detection device includes: A flow guide plate is fixedly installed below the water-discharging roll material. The flow guide plate is provided with multiple flow guide holes, and a flow guide tube is provided on the flow guide hole. The flow guide tube is in the shape of an inverted cone. A color display plate is disposed below the flow guide plate, and there is a gap between the color display plate and the lower surface of the flow guide tube; The camera is fixedly installed at the bottom inside the support platform, and multiple cameras are provided.

[0017] In this technical solution, when colored water permeates the waterproof membrane, it drips onto the guide plate, directing the seepage to various guide holes. After converging through inverted conical guide tubes, the water precisely drips onto the color-developing plate. The color-developing plate uses a white or light-colored high-contrast material, making the color spots formed by the colored water droplets on its surface clearer and easier to identify. Multiple cameras monitor the color-developing plate in real time from different angles, enabling timely capture of the appearance of the first colored water droplet and the subsequent spread of the color spots. Image recognition technology can automatically record the time point of seepage, avoiding potential omissions and delays in manual observation, greatly improving the sensitivity and accuracy of seepage detection, and providing precise data support for the quantitative evaluation of the waterproof membrane's anti-seepage performance. At the same time, based on the time interval of color change at various points on the imaging layer, the anti-seepage uniformity of the waterproof membrane can also be effectively measured, further improving the detection effect.

[0018] Furthermore, the color display plate is made of a flexible, water-absorbing material.

[0019] In this technical solution, the color developing plate uses a flexible, absorbent material, such as a highly absorbent resin sponge or cotton non-woven fabric. When colored water droplets fall onto its surface, it can quickly absorb the water and allow the color to diffuse evenly within the material, forming a clearly defined and saturated color developing area. This avoids the problems of blurred color development or color mixing caused by the random flow of liquid water on the surface, ensuring that every drop of water can be accurately absorbed and developed. This improves the stability and reliability of the color development reaction and also facilitates the replacement or cleaning of the color developing plate after the test, reducing the maintenance cost of the device.

[0020] Furthermore, a vertical guide rod is provided at the top of the guide tube. The guide rod includes an inclined rod and a vertical rod. One end of the inclined rod is fixedly connected to the guide rod, and the other end of the inclined rod is connected to the vertical rod. Multiple inclined rods and vertical rods are provided along the circumference of the guide tube. The top of the vertical rod is connected to the lower surface of the waterproof membrane.

[0021] In this technical solution, the top of the vertical rod is connected to the lower surface of the waterproof membrane, allowing seepage water to be guided through the guide rod to the guide tube of the guide plate. The vertical rod can collect water seeping from different locations on the membrane through the guide tube via the inclined rod, avoiding confusion of the detection area caused by the random spread of seepage water on the lower surface of the membrane. This further improves the accuracy and guiding efficiency of seepage water collection, ensuring that the water at each seepage point can be effectively captured and guided to the colorimetric plate for detection.

[0022] A waterproof membrane impermeability testing device and its method of use, based on the above-mentioned waterproof membrane impermeability testing device, the method of use includes the following steps: S1. Place the waterproof membrane: Cut the waterproof membrane to be tested into a shape that matches the size of the top of the support platform, ensuring that the surface of the membrane is flat, without wrinkles or damage. Then place the cut waterproof membrane on the top of the support platform, aligning the test area of ​​the membrane with the opening at the bottom of the water tank and the guide plate area below. S2. Testing the waterproof membrane's impermeability: Start the water supply device and inject a preset amount of colored water into the water supply tank through the water supply pipe, then close the water supply pipe valve; next, open the air supply pipe and adjust the external air source equipment to introduce gas into the water supply tank, so that the water pressure in the tank continues to rise. At the same time, observe the water seepage of the waterproof membrane. When the camera observes a colored spot on the color display board, immediately record the current pressure. This pressure is the maximum pressure for the waterproof membrane to resist impermeability, and determine whether its impermeability performance meets the level requirements of the waterproof membrane's impermeability. S3. Cleaning the Water Supply Tank: After the test is completed, slide the sliding layer upward to release the seal with the lower cylinder, so that the clean bottom surface contacts the upper surface of the pressure reducing plate, and one end of the cleaning plate contacts the outer wall of the inner cylinder. Activate the lifting mechanism to drive the buffer plate to slide upward along the axis of the inner cylinder, so that the buffer plate and the scraper surface are in close contact. Then, the rotation mechanism drives the scraper to rotate along the circumference of the upper cylinder. As the scraper rotates, its blades scrape off the colored pigments remaining on the surface of the buffer plate. The scraped pigment fragments fall onto the pressure reducing plate under the push of the scraper. During the rotation of the cleaning plate, the residue on the pressure reducing plate is scraped off and collected at the bottom of the cleaning bucket. During the sliding of the sliding plate, the residue at the bottom of the cleaning bucket is pushed to the cleaning pipe and discharged through the cleaning pipe. At the same time, clean water is supplied to the inner cylinder, allowing the clean water to pass through the buffer plate, pressure reducing plate, and cleaning bucket and be discharged from the cleaning pipe. In this process, not only can the colored water inside the inner cylinder be discharged, but the residues on the buffer plate, pressure reducing plate, and cleaning bucket can also be further cleaned.

[0023] The beneficial effects of this invention are: 1. By introducing colored water into the water supply device, when the waterproof membrane permeates, the colored water will seep through the membrane. Compared to traditional clear water, colored water can be detected by the detection device more quickly and clearly in the early stages of permeation, thus effectively solving the problem of delayed judgment caused by the unclear permeation phenomenon in existing technologies. The detection device is set inside the support platform, which can directly detect the water that permeates the waterproof membrane, ensuring the timeliness and accuracy of the detection, and improving the efficiency and accuracy of the waterproof membrane's anti-permeability performance testing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional structural schematic diagram of the water supply device of the present invention; Figure 3This is a schematic diagram of the water supply device of the present invention; Figure 4 This is a schematic diagram of the cleaning component of the present invention; Figure 5 This is a schematic diagram of the detection device of the present invention; Figure 6 This is a schematic diagram of the flow guide rod of the present invention; The markings in the diagram are as follows: 1. Workbench; 2. Support platform; 3. Waterproof membrane; 4. Water supply device; 5. Detection device; 6. Water supply pipe; 7. Air supply pipe; 8. Buffer assembly; 9. Inner cylinder; 10. Pressure reduction chamber; 11. Pressure reduction assembly; 12. Cleaning assembly; 13. Buffer plate; 14. Guide plate; 15. Guide hole; 16. Guide pipe; 17. Color display plate; 18. Camera; 19. Guide rod; 20. Inclined rod; 21. Vertical rod; 22. Water supply tank; 23. Through hole; 24. Upper cylinder; 25. Lower cylinder; 26. Sliding layer; 27. Pressure reduction plate; 28. Pressure reduction hole; 29. ​​Exhaust pipe; 30. Scraper; 31. Rotating mechanism; 32. Lifting mechanism; 33. Cleaning bucket; 34. Cleaning pipe; 35. Sliding groove; 36. Sliding plate; 37. Cleaning plate. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0026] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0027] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0028] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0029] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0030] Example 1: like Figure 1-6 As shown, in view of the above, the present invention provides a waterproof membrane impermeability testing device and its method of use, comprising: Workbench 1, on which a support platform 2 and a water supply tank 22 are provided, a waterproof membrane 3 is provided on the support platform 2, and the water supply tank 22 is located above the support platform 2; Water supply device 4 is installed on water supply tank 22. The water supply device 4 contains colored water and is used to supply water to waterproof membrane 3. The testing device 5 is installed inside the support platform 2 and is used to test the impermeability of the waterproof membrane 3.

[0031] By placing colored water in the water supply device 4, when the waterproof membrane 3 is permeated, the colored water will seep through the membrane. Compared with traditional clean water, colored water can be detected more quickly and obviously by the detection device 5 in the early stage of permeation, thus effectively solving the problem of delayed judgment caused by the indistinct permeation phenomenon in the existing technology. The detection device 5 is set inside the support platform 2, which can directly detect the water that has permeated the waterproof membrane 3, ensuring the timeliness and accuracy of the detection, and improving the efficiency and accuracy of the waterproof membrane 3's anti-permeability performance test.

[0032] The water supply device 4 includes: The inner cylinder 9 is located inside the water supply tank 22. The inner cylinder 9 has a downward opening. The bottom of the inner cylinder 9 is sealed to the surface of the waterproof membrane 3. The inner cylinder 9 is provided with a water supply pipe 6 and an air supply pipe 7, which are connected to the top of the water supply tank 22. A buffer assembly 8 is disposed inside the inner cylinder 9 and above the waterproof membrane 3. The buffer assembly 8 is used to reduce the impact of water flow in the water supply tank 22 on the surface of the waterproof membrane 3. Pressure reducing component 11 is disposed outside the inner cylinder 9 and connected to the inner cylinder 9. The pressure reducing component 11 is used to adjust the water pressure inside the inner cylinder 9.

[0033] The water supply pipe 6 can inject a preset amount of colored water into the inner cylinder 9 to provide a water source for testing; the air supply pipe 7 introduces gas into the inner cylinder 9 to reduce the water pressure inside the inner cylinder 9; the buffer component 8 can reduce the impact of the water flow in the water supply tank 22 on the surface of the waterproof membrane 3, preventing the membrane from being deformed locally due to the impact of the water flow, thus affecting its original impermeability; the pressure reducing component 11 can adjust the water pressure inside the inner cylinder 9 to avoid damage to the membrane due to excessive water pressure.

[0034] The buffer component 8 includes: A buffer plate 13 is slidably disposed inside the inner cylinder 9 along the axial direction of the inner cylinder 9. The buffer plate 13 is conical, and the edge of the buffer plate 13 is in contact with the inner wall of the inner cylinder 9. Through holes 23 are provided on the buffer plate 13, and multiple through holes 23 are provided along the circumferential direction of the buffer plate 13. A cleaning component 12 is installed on the water supply tank 22 and is connected to the buffer plate 13. The cleaning component 12 is used to clean the residual pigment on the buffer plate 13.

[0035] When colored water is injected into the inner cylinder 9, the water flow first impacts the buffer plate 13. Since the buffer plate 13 is conical, it can disperse the water flow in all directions, reducing the direct impact of the water flow on specific points on the surface of the waterproof membrane 3. Multiple through holes 23 allow the water flow to pass through slowly and evenly, further reducing the impact force when the water flow reaches the surface of the membrane, ensuring that the waterproof membrane 3 is always in a stable stress state during the testing process. The cleaning component 12 can clean the colored pigment that may remain on the surface of the buffer plate 13 after the test is completed, preventing cross-contamination of pigments from different batches of tests, and ensuring the independence and accuracy of each test.

[0036] The water supply tank 22 includes an upper cylinder 24, a lower cylinder 25, and a sliding layer 26. The upper cylinder 24 is disposed above the inner cylinder 9, the lower cylinder 25 is disposed through the bottom of the inner cylinder 9, and the sliding layer 26 is slidably disposed inside the circumferential wall of the upper cylinder 24.

[0037] When the water supply tank 22 supplies water and gas, the sliding layer 26 is slid towards the lower cylinder 25, so that the lower end of the sliding layer 26 is sealed to the top of the lower cylinder 25, preventing water and gas leakage from the inner cylinder 9 and ensuring the pressure stability of the sealed cavity; after the test is completed, the sliding layer 26 is slid upward to release the seal with the lower cylinder 25, which facilitates cleaning of the inside of the inner cylinder 9 and also facilitates the discharge of gas and water from the inside of the inner cylinder 9.

[0038] The pressure relief assembly 11 includes: Pressure reducing chamber 10 is located between the inner wall of water supply tank 22 and the outer wall of inner cylinder 9. Pressure reducing plate 27 is fixedly installed in pressure reducing chamber 10. The inner wall of pressure reducing plate 27 is in contact with the outer wall of inner cylinder 9. The upper surface of pressure reducing plate 27 is flush with the upper surface of lower cylinder 25. Pressure reducing hole 28 is provided on pressure reducing plate 27. Exhaust pipe 29 is fixedly installed on the circumferential wall at the bottom of the inner cylinder 9. One end of the exhaust pipe 29 is connected through to the bottom of the lower cylinder 25. Multiple exhaust pipes 29 are provided along the circumferential direction of the inner cylinder 9.

[0039] When the water pressure inside the inner cylinder 9 exceeds the preset threshold, some water or gas will enter the lower cylinder 25 through the exhaust pipe 29, and then enter the pressure reducing chamber 10 through the pressure reducing hole 28 on the pressure reducing plate 27. At the same time, the pressure reducing chamber 10 can temporarily store the overpressure fluid. After the pressure inside the inner cylinder 9 returns to normal, some fluid can flow back to the inner cylinder 9 through the pressure reducing hole 28, thereby achieving dynamic balance adjustment of pressure and ensuring that the water pressure remains stable within the set range during the detection process.

[0040] The cleaning component: Scraper 30, the scraper 30 is rotatably disposed above the inner cylinder 9, and the lower end of the scraper 30 corresponds to the inclined surface of the buffer plate 13; A rotating mechanism 31 is fixedly installed inside the upper cylinder 24. The rotating mechanism 31 is connected to the scraper 30 and is used to drive the scraper 30 to rotate along the circumference of the upper cylinder 24. The lifting mechanism 32 is located in the center of the upper cylinder 24 and is fixedly connected to the buffer plate 13. The lifting mechanism 32 is used to drive the buffer plate 13 to slide up and down along the axis of the inner cylinder 9. A cleaning bucket 33 is fixedly installed outside the water supply tank 22. A sliding groove 35 is provided on the inner wall of the cleaning bucket 33 along the circumferential direction. A sliding plate 36 is slidably installed on the sliding groove 35. The bottom end of the sliding plate 36 is in contact with the bottom surface of the cleaning bucket 33. A cleaning pipe 34 is provided on the bottom surface of the cleaning bucket 33. A cleaning plate 37 is disposed on a sliding plate 36. The bottom surface of the cleaning plate 37 is in contact with the upper surface of the pressure reducing plate 27, and one end of the cleaning plate 37 is in contact with the outer wall of the inner cylinder 9.

[0041] The rotating mechanism 31 and the lifting mechanism 32 are common mechanisms and will not be described in detail here. After the test is completed, the lifting mechanism 32 is activated, which drives the buffer plate 13 to slide upward along the axis of the inner cylinder 9 so that the buffer plate 13 is in close contact with the surface of the scraper 30. Then the rotating mechanism 31 drives the scraper 30 to rotate in the circumferential direction of the upper cylinder 24. As the scraper 30 rotates, its blade part scrapes off the colored pigment remaining on the surface of the buffer plate 13. The scraped pigment fragments fall onto the pressure relief plate 27 under the push of the scraper 30. During the rotation, the cleaning plate 37 scrapes off the residue on the pressure relief plate 27 and collects it at the bottom of the cleaning bucket 33. During the sliding process of the sliding plate 36, the residue at the bottom of the cleaning bucket 33 is pushed to the cleaning pipe 34 and discharged through the cleaning pipe 34.

[0042] The detection device 5 includes: A guide plate 14 is fixedly installed below the water-discharging roll material. The guide plate 14 is provided with multiple guide holes 15. A guide tube 16 is provided on the guide hole 15. The guide tube 16 is in the shape of an inverted cone. A color display plate 17 is disposed below the flow guide plate 14, and there is a gap between the color display plate 17 and the lower surface of the flow guide tube 16. Camera 18, which is fixedly installed at the bottom inside the support platform 2, and multiple cameras 18 are provided.

[0043] When colored water seeps through the waterproof membrane 3, it drips onto the guide plate 14, directing the seepage to various guide holes 15. After converging through the inverted conical guide tube 16, the water drips precisely onto the color display plate 17. The color display plate 17 is made of a white or light-colored high-contrast material, making the color spots formed by the colored water droplets on its surface clearer and easier to identify. Multiple cameras 18 monitor the color display plate 17 in real time from different angles, enabling timely capture of the appearance of the first colored water droplet and the subsequent diffusion of the color spots. Image recognition technology can automatically record the time point of seepage, avoiding omissions and delays that may occur during manual observation, greatly improving the sensitivity and accuracy of seepage detection, and providing precise data support for the quantitative evaluation of the waterproof membrane 3's impermeability performance. At the same time, based on the time interval of color change at each point of the display layer, the impermeability uniformity of the waterproof membrane 3 can also be effectively measured, further improving the detection effect.

[0044] The color display plate 17 is made of a flexible, water-absorbing material.

[0045] In this technical solution, the color developing plate 17 is made of a flexible water-absorbing material, such as a highly absorbent resin sponge or cotton non-woven fabric. When colored water droplets fall onto its surface, it can quickly absorb the water and make the color diffuse evenly inside the material, forming a color developing area with clear boundaries and saturated color. This avoids the problem of blurred color development or color mixing caused by the random flow of liquid water on the surface, ensuring that every drop of seepage water can be accurately absorbed and developed, improving the stability and reliability of the color development reaction, and also making it easier to replace or clean the color developing plate 17 after the test is completed, thus reducing the maintenance cost of the device.

[0046] The top of the guide pipe 16 is provided with a vertical guide rod 19. The guide rod 19 includes an inclined rod 20 and a vertical rod 21. One end of the inclined rod 20 is fixedly connected to the guide rod 19, and the other end of the inclined rod 20 is connected to the vertical rod 21. Multiple inclined rods 20 and vertical rods 21 are provided along the circumference of the guide pipe 16. The top of the vertical rod 21 is connected to the lower surface of the waterproof membrane 3.

[0047] The top of the vertical rod 21 is connected to the lower surface of the waterproof membrane 3, so that the seepage water can be guided through the guide rod 19 to the guide tube 16 of the guide plate 14. The vertical rod 21 can collect the water seeping from different positions of the membrane through the guide tube 16 via the inclined rod 20, avoiding confusion of the detection area caused by the random spread of seepage water on the lower surface of the membrane, further improving the accuracy and guiding efficiency of seepage water collection, and ensuring that the water at each seepage point can be effectively captured and guided to the color display plate 17 for detection.

[0048] A waterproof membrane impermeability testing device and its method of use, based on the above-mentioned waterproof membrane impermeability testing device, the method of use includes the following steps: S1. Place the waterproof membrane 3: Cut the waterproof membrane 3 to be tested into a shape that matches the top size of the support platform 2, ensuring that the surface of the membrane is flat, without wrinkles or damage. Then place the cut waterproof membrane 3 on the top of the support platform 2, so that the test area of ​​the membrane is centered and aligned with the opening at the bottom of the water supply tank 22 and the area of ​​the guide plate 14 below. S2. Test the impermeability of waterproof membrane 3: Start the water supply device 4 and inject a preset amount of colored water into the water supply tank 22 through the water supply pipe 6, and then close the valve of the water supply pipe 6; then turn on the air supply pipe 7 and adjust the external air source equipment to introduce gas into the water supply tank 22 to make the water pressure in the tank continuously rise. At the same time, observe the water seepage of waterproof membrane 3. When the camera 18 observes a colored spot on the color display board 17, immediately record the current pressure. This pressure is the maximum pressure for the waterproof membrane 3 to resist impermeability, and determine whether its impermeability performance meets the level requirements of the waterproof membrane 3. S3. Cleaning the water supply tank 22: After the test is completed, slide the sliding layer 26 upward to release the seal with the lower cylinder 25, so that the clean bottom surface contacts the upper surface of the pressure reducing plate 27, and one end of the cleaning plate 37 contacts the outer wall of the inner cylinder 9. Start the lifting mechanism 32 to drive the buffer plate 13 to slide upward along the axis of the inner cylinder 9 so that the buffer plate 13 is in close contact with the surface of the scraper 30. Then, the rotating mechanism 31 drives the scraper 30 to rotate in the circumferential direction of the upper cylinder 24. As the scraper 30 rotates, its blade part scrapes off the colored pigment remaining on the surface of the buffer plate 13. The scraped pigment debris is scraped off by the scraper 30. Driven by the pressure plate 27, the residue falls onto the pressure plate 27. As the cleaning plate 37 rotates, it scrapes off the residue on the pressure plate 27 and collects it at the bottom of the cleaning bucket 33. As the sliding plate 36 slides, it pushes the residue at the bottom of the cleaning bucket 33 to the cleaning pipe 34 and discharges it through the cleaning pipe 34. At the same time, it provides clean water to the inner cylinder 9, allowing the clean water to pass through the buffer plate 13, the pressure plate 27, and the cleaning bucket, and be discharged from the cleaning pipe 34. In this process, not only can the colored water inside the inner cylinder 9 be discharged, but the residue on the buffer plate 13, the pressure plate 27, and the cleaning bucket can also be further cleaned.

[0049] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A device for testing the impermeability of waterproof membrane, characterized in that... ,include: A workbench (1) is provided with a support platform (2) and a water supply tank (22). A waterproof membrane (3) is provided on the support platform (2). The water supply tank (22) is located above the support platform (2). Water supply device (4), the water supply device (4) is installed on water supply tank (22), the water supply device (4) contains colored water, the water supply device (4) is used to supply water to waterproof membrane (3); The testing device (5) is located inside the support platform (2) and is used to test the impermeability of the waterproof membrane (3).

2. The waterproof membrane impermeability testing device according to claim 1, characterized in that, The water supply device (4) includes: The inner cylinder (9) is located inside the water supply tank (22). The inner cylinder (9) has a downward opening. The bottom of the inner cylinder (9) is sealed to the surface of the waterproof membrane (3). The inner cylinder (9) is provided with a water supply pipe (6) and an air supply pipe (7). The water supply pipe (6) and the air supply pipe (7) are connected to the top of the water supply tank (22). A buffer assembly (8) is disposed inside the inner cylinder (9) and above the waterproof membrane (3). The buffer assembly (8) is used to reduce the impact of water flow in the water supply tank (22) on the surface of the waterproof membrane (3). Pressure reducing component (11) is disposed outside the inner cylinder (9) and connected to the inner cylinder (9). The pressure reducing component (11) is used to adjust the water pressure inside the inner cylinder (9).

3. The waterproof membrane impermeability testing device according to claim 2, characterized in that, The buffer component (8) includes: A buffer plate (13) is slidably disposed inside the inner cylinder (9) along the axial direction of the inner cylinder (9). The buffer plate (13) is conical, and the edge of the buffer plate (13) is in contact with the inner wall of the inner cylinder (9). Through holes (23) are provided on the buffer plate (13), and multiple through holes (23) are provided along the circumferential direction of the buffer plate (13); A cleaning component (12) is installed on a water supply tank (22) and connected to a buffer plate (13). The cleaning component (12) is used to clean the residual pigment on the buffer plate (13).

4. The waterproof membrane impermeability testing device according to claim 2, characterized in that, The water supply tank (22) includes an upper cylinder (24), a lower cylinder (25) and a sliding layer (26). The upper cylinder (24) is located above the inner cylinder (9), the lower cylinder (25) is located through the bottom of the inner cylinder (9), and the sliding layer (26) is slidably located inside the circumferential wall of the upper cylinder (24).

5. The waterproof membrane impermeability testing device according to claim 2, characterized in that, The pressure relief assembly (11) includes: Pressure reducing chamber (10) is located between the inner wall of water supply tank (22) and the outer wall of inner cylinder (9). Pressure reducing plate (27) is fixedly installed in pressure reducing chamber (10). The inner wall of pressure reducing plate (27) is in contact with the outer wall of inner cylinder (9). The upper surface of pressure reducing plate (27) is flush with the upper surface of lower cylinder (25). Pressure reducing hole (28) is provided on pressure reducing plate (27). Exhaust pipe (29) is fixedly installed on the circumferential wall at the bottom of the inner cylinder (9). One end of the exhaust pipe (29) is connected through to the bottom of the lower cylinder (25). Multiple exhaust pipes (29) are provided along the circumferential direction of the inner cylinder (9).

6. The waterproof membrane impermeability testing device according to claim 3, characterized in that, The cleaning component: Scraper (30), the scraper (30) is rotatably disposed above the inner cylinder (9), and the lower end of the scraper (30) corresponds to the inclined surface of the buffer plate (13); Rotating mechanism (31), the rotating mechanism (31) is fixedly installed inside the upper cylinder (24), the rotating mechanism (31) is connected to the scraper (30), the rotating mechanism (31) is used to drive the scraper (30) to rotate along the circumference of the upper cylinder (24); The lifting mechanism (32) is located in the center of the upper cylinder (24). The lifting mechanism (32) is fixedly connected to the buffer plate (13). The lifting mechanism (32) is used to drive the buffer plate (13) to slide up and down along the axis of the inner cylinder (9). A cleaning bucket (33) is fixedly installed outside the water supply tank (22). A sliding groove (35) is provided on the inner wall of the cleaning bucket (33) along the circumferential direction. A sliding plate (36) is slidably installed on the sliding groove (35). The bottom end of the sliding plate (36) is in contact with the bottom surface of the cleaning bucket (33). A cleaning pipe (34) is provided on the bottom surface of the cleaning bucket (33). Cleaning plate (37) is disposed on sliding plate (36). The bottom surface of cleaning plate (37) is in contact with the upper surface of pressure reducing plate (27). One end of cleaning plate (37) is in contact with the outer wall of inner cylinder (9).

7. The waterproof membrane impermeability testing device according to claim 1, characterized in that, The detection device (5) includes: A guide plate (14) is fixedly installed below the water-discharging roll material. The guide plate (14) is provided with guide holes (15), and there are multiple guide holes (15). A guide tube (16) is provided on the guide hole (15), and the guide tube (16) is in the shape of an inverted cone. A color display plate (17) is disposed below the flow guide plate (14), and there is a gap between the color display plate (17) and the lower surface of the flow guide tube (16). Camera (18), the camera (18) is fixedly installed at the bottom inside the support platform (2), and multiple cameras (18) are provided.

8. The waterproof membrane impermeability testing device according to claim 7, characterized in that, The color display plate (17) is made of a flexible, absorbent material.

9. The waterproof membrane impermeability testing device according to claim 7, characterized in that, The top of the guide pipe (16) is provided with a vertical guide rod (19). The guide rod (19) includes an inclined rod (20) and a vertical rod (21). One end of the inclined rod (20) is fixedly connected to the guide rod (19), and one end of the inclined rod (20) is connected to the vertical rod (21). Multiple inclined rods (20) and vertical rods (21) are provided along the circumference of the guide pipe (16). The top of the vertical rod (21) is connected to the lower surface of the waterproof membrane (3).

10. The method of using the waterproof membrane impermeability testing device according to claim 1, comprising the following steps: S1. Place the waterproof membrane (3): Cut the waterproof membrane (3) to be tested into a shape that matches the top size of the support platform (2), ensuring that the surface of the membrane is flat, wrinkle-free, and undamaged. Then place the cut waterproof membrane (3) on the top of the support platform (2), so that the test area of ​​the membrane is centered and aligned with the opening at the bottom of the water supply tank (22) and the area of ​​the guide plate (14) below. S2. Test the impermeability of the waterproof membrane (3): Start the water supply device (4) and inject a preset amount of colored water into the water supply tank (22) through the water supply pipe (6). Then close the valve of the water supply pipe (6). Next, open the air supply pipe (7) and adjust the external air source equipment to introduce gas into the water supply tank (22) so that the water pressure in the tank continues to rise. At the same time, observe the water seepage of the waterproof membrane (3). When the camera (18) observes a colored spot on the color display plate (17), immediately record the pressure provided. This pressure is the maximum pressure of the waterproof membrane (3) to resist impermeability and determine whether its impermeability performance meets the level requirements of the waterproof membrane (3) to resist impermeability. S3. Cleaning the water supply tank (22): After the test is completed, slide the sliding layer (26) upward to release the seal with the lower cylinder (25), so that the clean bottom surface contacts the upper surface of the pressure reducing plate (27), and one end of the cleaning plate (37) contacts the outer wall of the inner cylinder (9). Start the lifting mechanism (32) to drive the buffer plate (13) to slide upward along the axis of the inner cylinder (9) so that the buffer plate (13) and the scraper (30) are in close contact. Then, the rotating mechanism (31) drives the scraper (30) to rotate along the circumference of the upper cylinder (24). As the scraper (30) rotates, its blade will scrape off the colored pigments remaining on the surface of the buffer plate (13). The scraped pigment fragments are scraped off on the scraper (3). Driven by 0), it falls onto the pressure relief plate (27). During the rotation of the cleaning plate (37), it scrapes off the residue on the pressure relief plate (27) and collects it at the bottom of the cleaning bucket (33). During the sliding process of the sliding plate (36), the residue at the bottom of the cleaning bucket (33) is pushed to the cleaning pipe (34) and discharged through the cleaning pipe (34). At the same time, clean water is supplied to the inner cylinder (9), allowing the clean water to pass through the buffer plate (13), pressure relief plate (27) and cleaning bucket, and be discharged from the cleaning pipe (34). In this process, not only can the colored water inside the inner cylinder (9) be discharged, but the residue on the buffer plate (13), pressure relief plate (27) and cleaning bucket can also be further cleaned.

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