A rainproof cloth performance testing equipment

Abstract

The present invention relates to a rainproof cloth performance testing device, comprising a stand, a wind-tear-resistant simulation cylinder is fixed on the stand, a sandwich material to be tested is installed in the wind-tear-resistant simulation cylinder, sealing end covers are symmetrically arranged at both ends of the wind-tear-resistant simulation cylinder, a height measuring functional part is penetrated through the center of the wind-tear-resistant simulation cylinder, and a blower is arranged at one end of the wind-tear-resistant simulation cylinder. The present invention gathers airflow in the cylinder through the wind-tear-resistant simulation cylinder, which not only avoids the influence of external turbulence on the detected airflow, but also gathers airflow, improves the utilization rate of airflow, and reduces airflow escape, thereby simulating the effect of testing each sandwich material under harsh working conditions.

Description

Technical Field

[0001] The invention belongs to the technical field of rainproof cloths, and in particular refers to a rainproof cloth performance testing device. Background Art

[0002] Rainproof cloth is a kind of cloth that uses chemical synthetic materials, through coating, lamination and other methods to make ordinary cloth waterproof. Its common materials mainly include PVC. Due to its good waterproof, moisture-proof, shielding and protective effects, rainproof cloth is widely used in walls, roofs and other parts of construction.

[0003] According to the requirements of Article 6, Clause 18 of GB 12952-2011 "Polyvinyl chloride (PVC) waterproofing membrane", when rainproof cloth is used in buildings, it needs to have a certain wind-proof ability. Wind-proof testing is used to evaluate the safety of buildings under wind force to ensure that the buildings will not collapse, structural damage or casualties will occur when subjected to wind force.

[0004] The above standard also proposes a wind-tear resistance test method for reference, which is to simulate the condition of the tarpaulin when it is assembled on a horizontal plane, forming a roof simulation test system with the bottom layer as the roof base, the middle layer as the tarpaulin, and the top layer covered with insulation material, so that a closed space is formed between the tarpaulin and the plane. Then, a certain pressure of gas is filled between the tarpaulin and the roof base to observe the load that the tarpaulin can withstand, so as to determine the wind-tear resistance performance of the tarpaulin.

[0005] The above detection method can only detect the maximum pressure that the tarpaulin can withstand, and cannot truly simulate the wind pressure condition of the tarpaulin when it is subjected to high wind speed. When the tarpaulin is actually working, high-speed airflow will pass quickly outside the tarpaulin. There is a big difference between the simulation test and the actual working conditions.

[0006] If a rainproof sheet is laid on a flat surface and a high-speed airflow is blown to simulate the test, there will be certain defects. The airflow is difficult to control during flat surface testing, the airflow concentration effect is poor, the wind pressure control is unstable, and it is easily affected by the surrounding environment, forming turbulence; the damage condition of the rainproof sheet after the test is difficult to judge, and it is impossible to provide accurate deformation data. Summary of the invention

[0007] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a rainproof cloth performance testing device, which at least partially solves the above problems.

[0008] The technical solution adopted by the present invention is as follows: a rainproof cloth performance testing device proposed by the present invention comprises a stand, on which a wind-tear-resistant simulation cylinder is fixed, the inner cavity of the wind-tear-resistant simulation cylinder is hollow, when gas passes through its inner cavity, the gas in the inner cavity is not affected by the airflow of the external environment, when testing, the roof base, rainproof cloth and thermal insulation layer to be tested need to be installed on the inner wall of the wind-tear-resistant simulation cylinder in sequence, and its cylindrical structure can enhance the gathering effect of the airflow in the inner cavity, fully simulating the actual working state of the rainproof cloth in a windy environment;

[0009] Furthermore, in order to prevent the detection airflow from entering the gaps between the interlayers to be detected (i.e., the roof base, rainproof cloth and insulation layer), thereby affecting the detection effect, sealing end covers are symmetrically provided at both ends of the anti-wind-uplift simulation tube, and the sealing end covers are threadedly connected to both ends of the anti-wind-uplift simulation tube.

[0010] Furthermore, a height measuring function part is provided through the center of the anti-wind-tear simulation tube. When the rainproof cloth in the anti-wind-tear simulation tube bulges under the action of high-speed airflow, the height measuring function part can accurately measure the bulging value of the rainproof cloth, thereby providing a numerical basis for the performance evaluation of the rainproof cloth.

[0011] Furthermore, a blower is provided at one end of the anti-wind-tear simulation cylinder, and the blower can blow high-speed airflow into the anti-wind-tear simulation cylinder, and the airflow blown by the blower will quickly flow through the surface of the rainproof cloth, thereby simulating actual strong wind weather;

[0012] Furthermore, in order to facilitate the installation of the height measuring function component and prevent interference between it and the blower, the blower is connected to the stand through an air guide tube, and the air guide tube is slidably arranged on the stand. When the air guide tube slides, the distance between it and the anti-wind-lifting simulation tube increases, thereby providing space for the installation of the height measuring function component;

[0013] Furthermore, in order to reduce energy consumption while increasing the wind speed in the anti-wind-lift simulation cylinder, a tapered ejector ring is slidably provided on the outer wall of the air guide cylinder. The tapered ejector ring is coaxial with the inner cavity of the air guide cylinder, and a gap is reserved between the tapered ejector ring and the end of the air guide cylinder, and the size of the gap can be adjusted by sliding the tapered ejector ring; when the airflow of the blower passes through the air guide cylinder and the tapered ejector ring, its flow velocity increases and the pressure decreases, the external atmospheric pressure is higher than the pressure of the inner cavity of the air guide cylinder and the tapered ejector ring, and the external airflow will enter from the gap between the tapered ejector ring and the end of the air guide cylinder under the action of the internal and external pressure difference, and further increase the wind speed in the anti-wind-lift simulation cylinder, thereby forming an ejection amplification effect.

[0014] Furthermore, the height measuring functional part includes a triangular bracket and a unidirectional measuring unit. The triangular bracket is arranged in a circular array on the side wall of the sealing end cover. The unidirectional measuring unit runs through the triangular brackets on both sides. The unidirectional measuring unit can detect the bulging amount of the rainproof cloth in the wind-resistant simulation tube.

[0015] Further, the unidirectional measurement unit includes a crossbeam and a toothed ruler, the crossbeam is arranged on the triangular bracket, the toothed ruler is arranged on the crossbeam for sliding up and down, and multiple groups of arrays of the toothed ruler are arranged on the crossbeam. The number of the toothed rulers can be determined according to the length of the anti-wind-lifting simulation tube and the rainproof cloth. Usually, a group of toothed rulers will be arranged in the middle of the anti-wind-lifting simulation tube, where the bulging deformation caused by the airflow is relatively large;

[0016] Furthermore, since the bulging deformation of the rainproof cloth presents a certain volatility, in order to keep the detection value of the toothed ruler at the maximum value of the bulging deformation and prevent the toothed ruler from synchronously rebounding due to the retraction of the rainproof cloth, a slider is provided on one side of the teeth of the toothed ruler, and the slider is slidably arranged in the crossbeam. A ratchet is rotatably arranged in the slider, and an active pawl is hinged in the slider. The active pawl is in contact with the ratchet. Under the action of the active pawl, the ratchet can only rotate in one direction. When the ratchet is engaged with the toothed ruler, the toothed ruler can only move away from the rainproof cloth under the action of the ratchet. When the rainproof cloth bulges, the toothed ruler is pushed outward by the bulging part. When the rainproof cloth retracts in a volatile manner, the toothed ruler will not retract in the opposite direction, thereby recording the maximum value of the bulging deformation.

[0017] Furthermore, after each measurement is completed, in order to restore the toothed ruler to its initial state, a spring is connected between the slider and the crossbeam. The spring always pushes the slider toward one end of the toothed ruler. Pushing the slider compresses the spring, and the ratchet separates from the toothed ruler. The toothed ruler can now slide in the opposite direction to its initial state. After releasing the slider, the toothed ruler will engage with the ratchet again under the action of the spring for the next detection.

[0018] Furthermore, air pipes are provided on the side walls of the anti-wind-uplift simulation cylinder, the number of the air pipes is the same as the number of the inner walls of the anti-wind-uplift simulation cylinder, each edge of the inner wall of the anti-wind-uplift simulation cylinder is provided with an L-shaped groove 1, each edge of the inner wall adjacent to the L-shaped groove 1 is provided with an L-shaped groove 2, the L-shaped groove 1 and the L-shaped groove 2 are centrally symmetrically arranged, and the air pipe is connected to the L-shaped groove 2;

[0019] Furthermore, an L-shaped plug plate is inserted in each of the L-shaped groove one and the L-shaped groove two, and the L-shaped plug plate can be pulled out from the L-shaped groove one and the L-shaped groove two, and a plurality of clamping plates are slidably provided in the L-shaped plug plate, and a fastening bolt is provided in the upper wall array of the L-shaped plug plate. When assembling the simulation detection system, the thermal insulation layer is placed between the outermost clamping plate and the L-shaped groove one, the rainproof cloth is placed between the middle clamping plate and the outermost clamping plate, and the roof base is placed between the innermost clamping plate and the middle clamping plate, and then the clamping plates are tightened by fastening bolts to fix each interlayer; if the rainproof cloth is not limited to the roof base and the thermal insulation layer during actual installation, and also includes other interlayer materials, the installation and fixation of other materials can be achieved by increasing the number of clamping plates; at the same time, because there are multiple groups of L-shaped plug plates, multiple groups of rainproof cloths can be clamped and tested at the same time in the wind-resistant simulation tube, thereby realizing the one-time detection of multiple groups of samples;

[0020] Furthermore, after the ventilation simulation test is completed, in order to confirm whether the rainproof cloth is damaged, a ventilation notch is provided in the middle of the L-shaped plug plate, and the position of the ventilation notch is adapted to the installation position of the rainproof cloth, and the ventilation notch is connected to the air pipe. When gas is introduced into the air pipe, the gas will enter the gap between the rainproof cloth and the roof base through the ventilation notch and bulge. If the rainproof cloth is not damaged, the high-pressure gas will pass through the holes in the rainproof cloth and quickly overflow through the insulation layer, making it impossible to maintain the pressure, thereby judging whether the rainproof cloth is damaged.

[0021] The beneficial effects achieved by the present invention using the above structure are as follows:

[0022] 1. The wind-resistant simulation tube can gather the airflow in the tube, which can not only avoid the influence of external turbulence on the detected airflow, but also gather the airflow, improve the utilization rate of the airflow, and reduce the airflow escape, so as to simulate the strong wind conditions in bad weather;

[0023] 2. The wind-resistant simulation tube can detect multiple samples at the same time, making the test samples richer and the test results more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0025] Figure 2 for Figure 1 A cross-sectional view of

[0026] Figure 3 An exploded view of an embodiment of the present invention;

[0027] Figure 4 This is a positional relationship diagram between the height measuring functional component and the sealing end cover;

[0028] Figure 5 for Figure 2 A magnified view of part I;

[0029] Figure 6 It is a cross-sectional view of the internal structure of the wind-resistant simulation tube;

[0030] Figure 7 It is a partial cross-sectional view of the wind-resistant simulation tube;

[0031] Figure 8 for Figure 6 Enlarged view of part II;

[0032] Fig. 9 It is a partial cross-sectional view showing the positional relationship between the L-shaped plug plate and the clamping plate.

[0033] Among them, 1. test stand, 2. wind-resistant simulation cylinder, 3. height measuring functional parts, 4. blower, 5. air guide tube, 6. taper ejector ring, 7. sealing end cover, 8. triangular bracket, 9. unidirectional measuring unit, 10. crossbeam, 11. slider, 12. toothed ruler, 13. ratchet, 14. active pawl, 15. spring, 16. air pipe, 17. L-shaped slot one, 18. L-shaped slot two, 19. L-shaped plug plate, 20. fastening bolts, 21. splint, 22. ventilation notch.

[0034] In the attached Figure 8 In the figure, a represents the roof base, b represents the rainproof cloth, and c represents the insulation layer.

[0035] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0038] like Figure 1 and Figure 2As shown, a rainproof cloth performance testing device proposed by the present invention comprises a stand 1, on which a wind-tear-resistant simulation cylinder 2 is fixed. The inner cavity of the wind-tear-resistant simulation cylinder 2 is hollow. When gas passes through its inner cavity, the gas in the inner cavity is not affected by the external environmental airflow. When testing, the roof base a to be tested, the rainproof cloth b and the insulation layer c need to be installed on the inner wall of the wind-tear-resistant simulation cylinder 2 in sequence. The specific installation layers are referenced to Figure 8 As shown, its cylindrical structure can enhance the gathering effect of the airflow in the inner cavity, fully simulating the actual working state of the rainproof cloth b in a strong wind environment;

[0039] In order to prevent the detection airflow from entering the gaps between the interlayers to be detected (i.e., roof base a, rainproof cloth b and insulation layer c), thereby affecting the detection effect, sealing end covers 7 are symmetrically provided at both ends of the anti-wind-uplift simulation tube 2, and the sealing end covers 7 are threadedly connected to the two ends of the anti-wind-uplift simulation tube 2.

[0040] A height measuring function part 3 is provided through the center of the anti-wind-tear simulation cylinder 2. When the rainproof cloth b in the anti-wind-tear simulation cylinder 2 bulges under the action of the high-speed airflow, the height measuring function part 3 can accurately measure the bulging value of the rainproof cloth b, thereby providing a numerical basis for the performance evaluation of the rainproof cloth b.

[0041] A blower 4 is provided at one end of the anti-wind-tear simulation cylinder 2, and the blower 4 can blow a high-speed airflow into the anti-wind-tear simulation cylinder 2. The airflow blown by the blower 4 will quickly flow through the surface of the rainproof cloth b, thereby simulating actual windy weather;

[0042] In order to facilitate the installation of the height measuring functional component 3 and prevent interference between it and the blower 4, the blower 4 is connected to the stand 1 through the air guide tube 5, and the air guide tube 5 is slidably arranged on the stand 1. When the air guide tube 5 slides, the distance between it and the anti-wind-tear simulation tube 2 increases, thereby providing space for the installation of the height measuring functional component 3;

[0043] In order to reduce energy consumption while increasing the wind speed in the anti-wind-tear simulation tube 2, a tapered ejector ring 6 is slidably provided on the outer wall of the air guide tube 5. The tapered ejector ring 6 is coaxial with the inner cavity of the air guide tube 5, and a gap is reserved between the tapered ejector ring 6 and the end of the air guide tube 5. The size of the gap can be adjusted by sliding the tapered ejector ring 6; when the airflow of the blower 4 passes through the air guide tube 5 and the tapered ejector ring 6, its flow rate increases and the pressure decreases. The external atmospheric pressure is higher than the pressure of the inner cavity of the air guide tube 5 and the tapered ejector ring 6. Under the action of the internal and external pressure difference, the external airflow will enter from the gap between the tapered ejector ring 6 and the end of the air guide tube 5, and further increase the wind speed in the anti-wind-tear simulation tube 2, thereby forming an ejection amplification effect.

[0044] like Figure 3 and Figure 4As shown, the height measuring functional part 3 includes a triangular bracket 8 and a unidirectional measuring unit 9. The triangular bracket 8 is arranged in a circular array on the side wall of the sealing end cover 7. The unidirectional measuring unit 9 runs through the triangular bracket 8 on both sides. The unidirectional measuring unit 9 can detect the bulging amount of the rainproof cloth b in the anti-wind simulation tube 2.

[0045] like Figure 2 and Figure 5 As shown, the unidirectional measuring unit 9 includes a crossbeam 10 and a toothed ruler 12. The crossbeam 10 is arranged on the triangular bracket 8, and the toothed ruler 12 is arranged on the crossbeam 10 for sliding up and down. Multiple groups of arrays of toothed rulers 12 are arranged on the crossbeam 10. The number of toothed rulers 12 can be determined according to the length of the wind-resistant simulation tube 2 and the rainproof cloth b. Usually, a group of toothed rulers 12 is arranged in the middle of the wind-resistant simulation tube 2, where the bulging deformation caused by the airflow is relatively large.

[0046] Because the bulging deformation of the rainproof cloth b presents a certain volatility, in order to keep the detection value of the toothed ruler 12 at the maximum value of the bulging deformation and prevent the toothed ruler 12 from synchronously rebounding due to the retraction of the rainproof cloth b, a slider 11 is provided on the toothed side of the toothed ruler 12, and the slider 11 is slidably arranged in the crossbeam 10. A ratchet 13 is rotatably arranged in the slider 11, and an active pawl 14 is hinged in the slider 11. The active pawl 14 contacts and cooperates with the ratchet 13. Under the action of the active pawl 14, the ratchet 13 can only rotate in one direction. When the ratchet 13 is engaged with the toothed ruler 12, the toothed ruler 12 can only move away from the rainproof cloth b under the action of the ratchet 13. When the rainproof cloth b bulges, the toothed ruler 12 is pushed outward by the bulging part. When the rainproof cloth b retracts in a volatile manner, the toothed ruler 12 will not retract in the opposite direction, thereby recording the maximum value of the bulging deformation.

[0047] After each measurement is completed, in order to restore the toothed scale 12 to its initial state, a spring 15 is connected between the slider 11 and the beam 10. The spring 15 always pushes the slider 11 toward one end of the toothed scale 12. The slider 11 is pushed to compress the spring 15, and the ratchet 13 is separated from the toothed scale 12. The toothed scale 12 can now slide in the opposite direction to its initial state. After releasing the slider 11, the toothed scale 12 will mesh with the ratchet 13 again under the action of the spring 15 for the next detection.

[0048] like Figure 6-Figure 8 As shown, the side walls of the wind-resistant simulation cylinder 2 are provided with air pipes 16, and the number of the air pipes 16 is the same as the number of the inner walls of the wind-resistant simulation cylinder 2. Each edge of the inner wall of the wind-resistant simulation cylinder 2 is provided with an L-shaped groove 17, and each edge of the inner wall adjacent to the L-shaped groove 17 is provided with an L-shaped groove 2 18. The L-shaped groove 17 and the L-shaped groove 2 18 are centrally symmetrically arranged, and the air pipe 16 is connected to the L-shaped groove 2 18;

[0049] like Figure 8 and Fig. 9 As shown, L-shaped slot 17 and L-shaped slot 2 18 are both plugged with L-shaped plug plates 19, which can be pulled out from L-shaped slot 17 and L-shaped slot 2 18. A plurality of clamping plates 21 are slidably arranged in the L-shaped plug plate 19, and a fastening bolt 20 is arranged in an array on the upper wall of the L-shaped plug plate 19. When assembling the simulation detection system, the insulation layer c is placed between the outermost clamping plate 21 and the L-shaped slot 17, the rainproof cloth b is placed between the middle clamping plate 21 and the outermost clamping plate 21, and the roof base a is placed between the outermost clamping plate 21 and the innermost clamping plate 21. It is placed between the innermost clamping plate 21 and the middle clamping plate 21, and then the clamping plate 21 is tightened by the fastening bolts 20 to fix each interlayer; if the rainproof cloth b is actually installed not only on the roof base a and the insulation layer c, but also on other interlayer materials, the installation and fixation of other materials can be achieved by increasing the number of clamping plates 21; at the same time, because there are multiple groups of L-shaped plug plates 19, multiple groups of rainproof cloths b can be clamped and tested at the same time in the wind-resistant simulation tube 2, thereby realizing the one-time testing of multiple groups of samples;

[0050] After the ventilation simulation test is completed, in order to confirm whether the rainproof cloth b is damaged, a ventilation notch 22 is provided in the middle of the L-shaped plug plate 19. The position of the ventilation notch 22 is adapted to the installation position of the rainproof cloth b, and the ventilation notch 22 is connected to the air pipe 16. Figure 8 As shown, when gas is introduced into the air pipe 16, the gas will enter the gap between the rainproof cloth b and the roof base a through the ventilation notch 22 and swell. If the rainproof cloth b is not damaged, the leakage rate of the inflation pressure is slow. If the rainproof cloth b is damaged, the high-pressure gas will pass through the hole in the rainproof cloth b and quickly overflow through the insulation layer c, making it impossible to maintain the pressure, thereby judging whether the rainproof cloth b is damaged.

[0051] During specific work, slide the air guide tube 5 to make the tapered ejector ring 6 away from the anti-wind-uplift simulation tube 2 and the sealing end cover 7, and then remove the triangular bracket 8, the unidirectional measuring unit 9 and the sealing end cover 7 from the anti-wind-uplift simulation tube 2 in turn to reserve space for the subsequent installation of the interlayer to be tested (in this embodiment, it represents the roof base a, the rainproof cloth b and the insulation layer c).

[0052] After the disassembly is completed, take out the two L-shaped plug plates 19, place them horizontally symmetrically, and make the plywood 21 on the L-shaped plug plates 19 face each other horizontally, and then insert each interlayer to be tested into each plywood 21, that is, place the insulation layer c between the outermost plywood 21 and the L-shaped groove 17, place the rainproof cloth b between the middle plywood 21 and the outermost plywood 21, and place the roof base a between the innermost plywood 21 and the middle plywood 21, and then tighten the plywood 21 with the fastening bolts 20 to fix each interlayer, and then insert the two sets of installed L-shaped plug plates 19 and the interlayer to be tested in the L-shaped plug plates 19 into the L-shaped groove 17 and the L-shaped groove 2 18 in the wind-resistant simulation tube 2. At this point, the installation of an inner wall simulation detection system of the wind-resistant simulation tube 2 is completed, and the installation of the remaining inner walls can be repeated according to the above steps.

[0053] When all the inner walls of the wind-resistant simulation tube 2 are installed, reinstall the sealing end cover 7, the triangular bracket 8 and the unidirectional measuring unit 9. When necessary, the top of the toothed ruler 12 on the unidirectional measuring unit 9 should be in contact with the outermost side of the interlayer to be tested (in this embodiment, it should be in contact with the thermal insulation layer c). If the toothed ruler 12 is not in contact with the interlayer to be tested, just push the slider 11 away from the toothed ruler 12 to disengage the ratchet 13 from the slider 11, and then the toothed ruler 12 can be moved.

[0054] After the above preparation steps are completed, the tapered projection ring is pushed to a position close to the anti-wind-tear simulation cylinder 2, and the blower 4 is started. The blower 4 introduces the external airflow into the air guide tube 5 and the tapered projection ring, and the gap between the tapered projection ring and the air guide tube 5 simultaneously introduces more external airflow into the anti-wind-tear simulation cylinder 2, further increasing the wind speed, thereby simulating the effect of high-speed airflow in a natural environment acting on the rainproof cloth b.

[0055] When high-speed airflow passes through the anti-wind-uplift simulation cylinder 2, the air pressure in the center of the anti-wind-uplift simulation cylinder 2 drops rapidly, and the air pressure on the side of the rainproof part close to the thermal insulation layer c drops. The rainproof cloth b will bulge to a certain extent, and the thermal insulation layer c will bulge to a certain extent synchronously, and push the toothed ruler 12 to move. The toothed ruler 12 engages and rotates with the ratchet 13, and the toothed ruler 12 can only move in the direction away from the thermal insulation layer c. When the thermal insulation layer c fluctuates periodically, the toothed ruler 12 will only record its maximum bulge amplitude and will not shrink in the reverse direction.

[0056] After the wind speed detection is completed, the height measuring functional part 3 is pulled out, and the value on the toothed scale 12 is read to obtain the wind resistance performance parameter of the rainproof cloth b.

[0057] At the same time, it is also necessary to confirm whether the rainproof cloth b is damaged, re-install the sealing end cover 7 on the wind-resistant simulation tube 2, and fill the air pipe 16 with gas of a certain pressure. The high-pressure gas enters from the air pipe 16 and enters between the plywood 21 and the rainproof cloth b through the ventilation notch 22. If the rainproof cloth b is damaged, the high-pressure gas will pass through the holes in the rainproof cloth b and quickly overflow through the insulation layer c, making it impossible to maintain the pressure. If the rainproof cloth b is intact, the high-pressure gas will be relatively stable, thereby completing the judgment of the integrity of the rainproof cloth b.

[0058] After the inspection is completed, all components are restored to their original state and the next round of inspection can be carried out.

[0059] The above operation steps will test multiple sample quantities at the same time and obtain multiple test results, making the test results more valuable for reference.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

[0062] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A rainproof cloth performance testing device, comprising a stand (1), characterized in that: Also includes: The wind-tear resistant simulation cylinder (2) is arranged on the stand (1), and sealing end covers (7) are symmetrically provided at both ends of the wind-tear resistant simulation cylinder (2). Each edge of the inner wall of the wind-tear resistant simulation cylinder (2) is provided with an L-shaped groove 1 (17), and each edge of the inner wall adjacent to the L-shaped groove 1 (17) is provided with an L-shaped groove 2 (18). The L-shaped groove 1 (17) and the L-shaped groove 2 (18) are centrally symmetrically arranged, and an L-shaped plug plate (19) is inserted in each of the L-shaped groove 1 (17) and the L-shaped groove 2 (18), and a plurality of clamping plates (21) are slidably provided in the L-shaped plug plate (19); A height measuring functional component (3) for measuring the deformation of the rainproof cloth, which is arranged through the center of the anti-wind-lifting simulation cylinder (2); The blower (4) is arranged at one end of the anti-wind-uplift simulation cylinder (2) and is used to blow a high-speed airflow into the anti-wind-uplift simulation cylinder (2).

2. The rainproof cloth performance testing device according to claim 1 is characterized in that: The blower (4) is connected to the stand (1) via an air guide tube (5); the air guide tube (5) is slidably mounted on the stand (1); a tapered ejector ring (6) is slidably mounted on the outer wall of the air guide tube (5); the tapered ejector ring (6) is coaxial with the inner cavity of the air guide tube (5); and a gap is reserved between the tapered ejector ring (6) and the end of the air guide tube (5).

3. The rainproof cloth performance testing device according to claim 1 is characterized in that: The height measuring functional component (3) comprises a triangular bracket (8) and a unidirectional measuring unit (9); the triangular brackets (8) are arranged in a circular array on the side wall of the sealing end cover (7); and the unidirectional measuring unit (9) penetrates the triangular brackets (8) arranged on both sides.

4. The rainproof cloth performance testing device according to claim 3 is characterized in that: The unidirectional measuring unit (9) comprises a crossbeam (10) and a toothed scale (12); the crossbeam (10) is arranged through the triangular bracket (8); the toothed scale (12) is arranged on the crossbeam (10) to slide up and down; and multiple groups of arrays of the toothed scale (12) are arranged on the crossbeam (10).

5. The rainproof cloth performance testing device according to claim 4 is characterized in that: A slider (11) is provided on one side of the teeth of the toothed scale (12). The slider (11) is slidably disposed in the crossbeam (10). A ratchet (13) is rotatably disposed in the slider (11). An active ratchet (14) is hingedly connected to the slider (11). The active ratchet (14) is in contact with the ratchet (13).

6. The rainproof cloth performance testing device according to claim 5, characterized in that: A spring (15) is connected between the slider (11) and the crossbeam (10).

7. The rainproof cloth performance testing device according to claim 1 is characterized in that: Air pipes (16) are provided on the side walls of the anti-wind-uplift simulation cylinder (2), the number of the air pipes (16) is the same as the number of the inner wall of the anti-wind-uplift simulation cylinder (2), and the air pipes (16) are in communication with the second L-shaped groove (18).

8. The rainproof cloth performance testing device according to claim 7, characterized in that: A ventilation notch (22) is provided in the middle of the L-shaped plug plate (19), and the position of the ventilation notch (22) matches the installation position of the rainproof cloth.

9. The rainproof cloth performance testing device according to claim 8, characterized in that: The ventilation notch (22) is in communication with the trachea (16).

10. The rainproof cloth performance testing device according to claim 8, characterized in that: The upper wall array of the L-shaped plug plate (19) is provided with fastening bolts (20).

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