An automated waterproofing membrane detection apparatus

Abstract

This utility model discloses an automated waterproof membrane testing device, belonging to the field of waterproof membrane testing technology. It includes: a housing placed within the testing device and used to support the membrane to be tested, with a cover plate positioned above the housing; and a tensioning assembly disposed between the housing and the cover plate. By setting grooves in the tensioning assembly and using springs in conjunction with pressure blocks, after the membrane to be tested is placed on the guide ring, the edges of the membrane to be tested are gradually stretched from multiple directions as the pressure block and the inclined surface of the guide ring press against it, thus keeping the membrane in a taut state. This effectively prevents a loose membrane surface from causing a decrease in the sealing performance of the testing device. By setting a sealing ring, after the cover plate and housing are closed, the edges and center of the membrane to be tested are isolated, preventing leakage during testing.

Description

Technical Field

[0001] This utility model relates to the field of waterproof membrane testing technology, specifically to an automated waterproof membrane testing device. Background Technology

[0002] As a key material balancing waterproofing and breathability, the performance of waterproof membranes directly affects the reliability of mobile phones in humid environments. During the production of waterproof membranes, the durability of the membranes is evaluated, simulating the impact of complex environments such as high temperature and humidity and temperature cycling on the microporous structure of the membrane material during long-term use, in order to prevent waterproofing failure due to aging.

[0003] Referring to the case "Membrane Water Permeability Testing Device" (publication number CN218003191U), this utility model discloses a membrane water permeability testing device, including a base. A placement groove for placing a desiccant is formed on the middle bottom surface of the base. A limiting groove is formed on the upper end of the base outside the placement groove. A circular ring is provided in the limiting groove, and a top cover is attached to the top of the circular ring. The top cover is fixedly connected to the base by screws. A sealing groove is formed downwards at the bottom of the limiting groove, and a sealing ring is provided inside the sealing groove. In use, this utility model allows the membrane to be placed in the limiting groove. Simultaneously, by placing the circular ring on the outer ring of the membrane, the outer ring of the membrane is evenly stressed and fixed within the limiting groove. The sealing ring at the bottom of the membrane further improves its sealing performance, preventing water leakage from gaps and affecting the determination of the actual water vapor permeation weight, thus improving the accuracy of the device's measurement results.

[0004] Although the aforementioned water permeability testing device can fix the membrane to be tested, after the personnel place the membrane to be tested in the testing device, the testing device can only press the edge of the membrane to be tested. Therefore, it cannot ensure that the membrane to be tested is in a taut state. The loose membrane surface will cause the sealing performance of the testing device to decrease. Water vapor may penetrate through the tiny gaps between the membrane material and the device or abnormal channels formed by membrane surface folds, resulting in abnormally high measured values ​​that cannot truly reflect the moisture permeability characteristics of the membrane material itself.

[0005] Based on this, the present invention designs an automated waterproof membrane testing device to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an automated waterproof membrane testing device.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An automated waterproof membrane testing device includes: a housing placed inside the testing device and used to support the membrane to be tested, and a cover plate is provided on the top of the housing;

[0009] Tensioning assembly, wherein the tensioning assembly is disposed between the shell and the cover plate;

[0010] The tensioning assembly includes a guide ring disposed within the housing, and an extrusion block is disposed above the guide ring;

[0011] Furthermore, the tensioning assembly also includes a groove formed below the cover plate, the pressure block is horizontally slidably connected in the groove, a sliding rod is fixedly connected inside the groove, and the pressure block slides on the surface of the sliding rod;

[0012] Furthermore, a spring is fixedly connected to the inner wall of the groove, and the other end of the spring is fixedly connected to the pressure block;

[0013] Furthermore, the guide ring has a flat-topped conical design, and the pressure block is inclined on the side near the guide ring, and the pressure block is adapted to the guide ring;

[0014] Furthermore, multiple pressure blocks are provided, and the multiple pressure blocks are arranged in a ring.

[0015] Furthermore, the inclined surface of the pressure block is provided with resistance strips, the resistance strips are made of silicone, and three resistance strips are arranged in a rectangular array;

[0016] Furthermore, the outer diameter of the pressure block and the inner diameter of the guide ring are on the same axis;

[0017] Furthermore, the tensioning assembly also includes a sealing ring disposed on the inner wall of the cover plate, wherein the lower part of the sealing ring is at the same horizontal line as the upper end of the guide ring.

[0018] Beneficial effects

[0019] 1. By setting the groove of the tensioning component and the spring in conjunction with the pressure block, after the personnel place the membrane to be tested on the guide ring, as the pressure block and the inclined surface of the guide ring are squeezed, the edge of the membrane to be tested can be gradually stretched from multiple directions, so that the membrane to be tested is in a taut state, which can effectively prevent the problem of reduced sealing of the test device caused by the loose membrane surface.

[0020] 2. By setting a sealing ring, the edge and middle of the membrane to be tested can be isolated after the cover plate and the shell are closed, preventing leakage during testing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a perspective view of the main structure of an automated waterproof membrane testing device according to the present invention;

[0023] Figure 2 This is a schematic diagram of the disassembled structure of the shell and cover plate in an automated waterproof membrane testing device of this utility model;

[0024] Figure 3 This utility model relates to an automated waterproof membrane testing device. Figure 2 Enlarged structural diagram at point A;

[0025] Figure 4 This is a structural breakdown diagram of the pressure block and guide ring in an automated waterproof membrane testing device according to this utility model.

[0026] The labels in the diagram represent:

[0027] 1. Housing; 2. Cover plate; 3. Tensioning assembly; 301. Groove; 302. Slide rod; 303. Spring; 304. Pressure block; 305. Sealing ring; 306. Guide ring. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] The present invention will be further described below with reference to the embodiments.

[0030] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-4 An automated waterproof membrane testing device includes: a housing 1 placed in the testing device and used to support the membrane to be tested, and a cover plate 2 provided on the top of the housing 1;

[0031] Tensioning component 3 is disposed between housing 1 and cover plate 2;

[0032] In some embodiments, such as Figure 1-4 As shown, in one embodiment of this utility model, the tensioning assembly 3 includes a guide ring 306 disposed inside the housing 1, and an extrusion block 304 is disposed above the guide ring 306;

[0033] First, the staff places the membrane to be tested above the guide ring 306 of the housing 1. Then, the cover plate 2 is placed above the housing 1 and moved vertically downward. At this time, the lower ends of multiple pressure blocks 304 will simultaneously contact the edge of the membrane to be tested. As the housing 1 continues to move downward, the pressure blocks 304 will contact the conical surface of the guide ring 306 and be squeezed obliquely, causing multiple pressure blocks 304 to move closer to the edge at the same time. However, since the edge of the membrane to be tested is placed between the pressure blocks 304 and the guide ring 306, when multiple pressure blocks 304 move along the conical surface of the guide ring 306 at the same time, the edge of the membrane to be tested will be gradually stretched, thus making the membrane to be tested taut.

[0034] It should be noted that when the personnel place the membrane to be tested above the guide ring 306, the membrane to be tested needs to be cut. The diameter of the cut should only be equal to or greater than the outer diameter of the guide ring 306. This way, sufficient tensioning space can be reserved for the pressure block 304, and the reserved space of the membrane to be tested should be kept short to prevent it from slipping off between the pressure block 304 and the guide ring 306.

[0035] In this embodiment of the utility model, the tensioning assembly 3 further includes a groove 301 formed below the cover plate 2, and the pressure block 304 is horizontally slidably connected in the groove 301. A slide rod 302 is fixedly connected inside the groove 301, and the pressure block 304 slides on the surface of the slide rod 302. By setting the groove 301 in conjunction with the slide rod 302, the pressure block 304 can be kept in a horizontal state when it is compressed and displaced, and the smoothness of the movement of the pressure block 304 can also be maintained.

[0036] In this embodiment of the utility model, a spring 303 is fixedly connected to the inner wall of the groove 301, and the other end of the spring 303 is fixedly connected to the pressure block 304. By setting the spring 303, the pressure block 304 can be subjected to the same pressure, and the pressure block 304 can also be compensated, so that the pressure block 304 presses the edge of the membrane to be tested tightly against the surface of the guide ring 306.

[0037] In this embodiment of the utility model, the guide ring 306 has a flat-top conical design, and the pressure block 304 has an inclined design on the side near the guide ring 306, and the pressure block 304 is adapted to the guide ring 306.

[0038] In this embodiment of the utility model, multiple pressure blocks 304 are provided, and the multiple pressure blocks 304 are arranged in a ring. Through the above design, multiple points of force can be maintained when the edge of the membrane to be tested is tensioned, so that the membrane to be tested can be tensioned more evenly.

[0039] In this embodiment of the utility model, the inclined surface of the pressure block 304 is provided with a resistance strip. The resistance strip is made of silicone and is arranged in a rectangular array of three. By setting the resistance strip, which is arranged vertically, the friction between the resistance strip and the membrane to be tested can be increased. At the same time, it can also protect the edge of the membrane to be tested and prevent the membrane to be tested from being damaged due to hard stretching.

[0040] In this embodiment of the invention, the outer diameter of the pressure block 304 and the inner diameter of the guide ring 306 are on the same axis;

[0041] In this embodiment of the utility model, the tensioning assembly 3 further includes a sealing ring 305 disposed on the inner wall of the cover plate 2. The lower part of the sealing ring 305 is at the same horizontal line as the upper end of the guide ring 306. By setting the sealing ring 305, the edge and middle of the detection membrane can be isolated after the cover plate 2 and the housing 1 are closed, so as to prevent leakage during the detection.

[0042] After the membrane to be tested is fixed, the staff can place the whole device in a constant temperature and humidity chamber for a period of time. By measuring the weight change of the material before and after drying in the device, the permeability of the membrane to water vapor is examined and recorded, thus completing the water permeability test of the mobile phone waterproof membrane.

[0043] 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 will 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. An automated waterproofing membrane detection apparatus, comprising: A housing (1) placed in a testing device and used to support a membrane to be tested, characterized in that: a cover plate (2) is provided on the top of the housing (1). Tensioning assembly (3), wherein the tensioning assembly (3) is disposed between the housing (1) and the cover plate (2); The tensioning component (3) includes a guide ring (306) disposed inside the housing (1), and an extrusion block (304) is disposed above the guide ring (306).

2. The automated waterproofing membrane inspection apparatus of claim 1, wherein, The tensioning assembly (3) also includes a groove (301) opened below the cover plate (2), the pressure block (304) is horizontally slidably connected in the groove (301), and a slide rod (302) is fixedly connected inside the groove (301), and the pressure block (304) slides on the surface of the slide rod (302).

3. The automated waterproofing membrane inspection apparatus of claim 2, wherein, A spring (303) is fixedly connected to the inner wall of the groove (301), and the other end of the spring (303) is fixedly connected to the pressure block (304).

4. The automated waterproof membrane testing equipment according to claim 1, characterized in that, The guide ring (306) has a flat-top conical design, and the pressure block (304) is inclined on the side near the guide ring (306). The pressure block (304) is adapted to the guide ring (306).

5. The automated waterproof membrane testing equipment according to claim 1, characterized in that, Multiple pressure blocks (304) are provided, and the multiple pressure blocks (304) are arranged in a ring.

6. The automated waterproof membrane testing equipment according to claim 1, characterized in that, The inclined surface of the pressure block (304) is provided with a resistance strip, the resistance strip is made of silicone, and the resistance strip is arranged in a rectangular array of three.

7. The automated waterproof membrane testing equipment according to claim 1, characterized in that, The outer diameter of the pressure block (304) and the inner diameter of the guide ring (306) are on the same axis.

8. The automated waterproof membrane testing equipment according to claim 1, characterized in that, The tensioning assembly (3) also includes a sealing ring (305) disposed on the inner wall of the cover plate (2), the lower part of the sealing ring (305) and the upper end of the guide ring (306) being at the same horizontal line.

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