Waterproof roll stretching detection clamp

Abstract

The utility model provides a waterproof coiled material stretching detection clamp, which comprises a base, a first clamping assembly, a movable support and a first driving assembly are arranged on the base, the first clamping assembly is arranged at one end of the base, the movable support is movably arranged on the base, and the first driving assembly is arranged on the base. The first driving assembly is in transmission connection with the movable support and drives the movable support to be close to or away from the first clamping assembly, the movable support is provided with a guide roller, a tensioning roller and a second driving assembly, the guide roller and the tensioning roller are rotationally connected with the movable support, and the tensioning roller is provided with the second clamping assembly. The second driving assembly is in transmission connection with the tensioning roller and drives the tensioning roller to rotate or locks the position of the tensioning roller. According to the utility model, the technical problem that the accuracy of a detection result is influenced by wrinkles on the surface of the waterproof roll after the waterproof roll is clamped is solved, the technical effects of ensuring that the waterproof roll is kept flat after being clamped and improving the detection precision are achieved, the clamping operation is simple, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof coiled material production, in particular to a waterproof coiled material stretching detection fixture. Background Art

[0002] Waterproof membrane is mainly used in building walls, roofs, tunnels, roads, landfills, etc. It is a flexible building material product that can be rolled into a roll to resist the seepage of external rainwater and groundwater. As a leak-free connection between the project foundation and the building, it is the first barrier to waterproofing the entire project and plays a vital role in the entire project.

[0003] The Chinese utility model patent with publication number CN217981020U discloses a novel portable waterproof coiled material stretching fixture, comprising a fixed guide frame and a movable guide frame, wherein the inner sides of the fixed guide frame and the movable guide frame are both equipped with positioning mechanisms, wherein the positioning mechanisms are used to complete the stop clamping of the two ends of the waterproof coiled material, and an adjustment mechanism is provided between the fixed guide frame and the movable guide frame, wherein the adjustment mechanism is used to adjust the distance between the fixed guide frame and the movable guide frame. The above-mentioned waterproof coiled material stretching fixture can conveniently complete the clamping and positioning of the waterproof coiled material through the structural design of the positioning mechanism, so as to improve the overall application effect.

[0004] When the waterproof roll material stretching clamp disclosed in the above utility model patent is used to clamp the two ends of the waterproof roll material, the waterproof roll material is in a relaxed state. After the waterproof roll material is clamped, wrinkles are likely to appear on its surface, affecting the accuracy of the test results. Therefore, the waterproof roll material needs to be manually stretched during the clamping process to keep the waterproof roll material flat, making the waterproof roll material stretching clamp inconvenient to use. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a waterproof coiled material stretching detection fixture, which solves the problem in the prior art that wrinkles appear on the surface of the waterproof coiled material after being clamped, affecting the accuracy of the detection result.

[0006] According to an embodiment of the utility model, a waterproof coiled material stretching detection fixture includes a base, the base is provided with a first clamping assembly, a movable bracket and a first driving assembly, the first clamping assembly is arranged at one end of the base, the movable bracket is movably arranged on the base, the first driving assembly is transmission-connected with the movable bracket and drives the movable bracket to approach or move away from the first clamping assembly, the movable bracket is provided with a guide roller, a tensioning roller and a second driving assembly, the guide roller and the tensioning roller are respectively rotationally connected to the movable bracket and the tensioning roller is provided with a second clamping assembly, the second driving assembly is transmission-connected with the tensioning roller and drives the tensioning roller to rotate or lock the position of the tensioning roller.

[0007] Furthermore, the first clamping assembly includes a clamping seat fixed on the base, the clamping seat is provided with a first clamping groove, the clamping seat is also provided with a liftable first clamping plate and the first clamping plate partially extends into the first clamping groove.

[0008] Furthermore, the clamping seat is also provided with a vertical first locking screw and a first locking knob matching the first locking screw, and the first clamping plate is provided with a first through hole for the first locking screw to pass through, and the first locking knob abuts against a side of the first clamping plate away from the clamping seat and presses the first clamping plate onto the clamping seat.

[0009] Furthermore, a vertical first guide rod is provided on the clamping seat and a first spring is sleeved on the first guide rod. A first guide hole matching the first guide rod is provided on the first clamping plate. The first spring abuts against a side of the first clamping plate away from the first locking knob and drives the first clamping plate to move in a direction away from the clamping seat.

[0010] Furthermore, a slide groove is provided on the base, the length direction of the slide groove is consistent with the moving direction of the movable bracket, and a sliding block matching with the slide groove is provided on the movable bracket.

[0011] Furthermore, the first driving assembly includes a motor and a screw rod arranged at the output end of the motor, the screw rod is rotatably arranged on the base and the axial direction of the screw rod is consistent with the moving direction of the movable bracket, and the movable bracket is provided with a threaded hole matching the screw rod.

[0012] Furthermore, the tensioning roller is provided with a second clamping groove, and the second clamping assembly includes a second clamping plate movable in the radial direction of the tensioning roller, and the second clamping plate partially extends into the second clamping groove.

[0013] Furthermore, the tensioning roller is also provided with a second locking screw and a second locking knob cooperating with the second locking screw, the axial direction of the second locking screw is consistent with the radial direction of the tensioning roller, and the second clamping plate is provided with a second through hole for the second locking screw to pass through, and the second locking knob abuts against a side of the second clamping plate away from the tensioning roller and presses the second clamping plate onto the tensioning roller.

[0014] Furthermore, a second guide rod is provided on the tensioning roller and a second spring is sleeved on the second guide rod. The axial direction of the second guide rod is consistent with the radial direction of the tensioning roller. The second clamping plate is provided with a second guide hole matching with the second guide rod. The second spring abuts against a side of the second clamping plate away from the second locking knob and drives the second clamping plate to move in a direction away from the tensioning roller.

[0015] Furthermore, the second driving assembly includes an adjusting screw fixed on the movable bracket and an adjusting knob cooperating with the adjusting screw, the rotating axis of the adjusting screw coincides with the rotating axis of the tensioning roller, a pull rod is provided on the adjusting knob, one end of the pull rod away from the adjusting knob is movably connected to the tensioning roller and the pull rod can move along the axial direction of the tensioning roller relative to the tensioning roller.

[0016] Compared with the prior art, the utility model has the following beneficial effects: by adopting a first clamping assembly arranged on the base and a second clamping assembly arranged on the tensioning roller to clamp the two ends of the waterproof coiled material to be tested respectively, after one end of the waterproof coiled material is clamped by the first clamping assembly, the other end of the waterproof coiled material is first passed through the gap between the guide roller and the base and then clamped by the second clamping assembly, after the clamping is completed, the second driving assembly is operated to rotate the tensioning roller to tighten the waterproof coiled material and the waterproof coiled material is abutted against the guide roller, and then the position of the tensioning roller is locked, so that the waterproof coiled material can be kept flat between the first clamping assembly and the second clamping assembly to prevent the waterproof coiled material from wrinkling, and then the first driving assembly is used to drive the movable bracket to move and drive the second clamping assembly away from the first clamping assembly to test the tensile strength of the waterproof coiled material, which solves the technical problem that wrinkles appear on the surface of the waterproof coiled material after being clamped, affecting the accuracy of the test result, and produces the technical effect of ensuring that the waterproof coiled material remains flat after being clamped and improving the test accuracy, and the clamping operation is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a waterproof coiled material tensile testing fixture according to an embodiment of the present utility model;

[0018] Figure 2 A top view of a waterproof coiled material tensile testing fixture according to an embodiment of the utility model;

[0019] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0020] Figure 4 It is a cross-sectional view of a waterproof coiled material tensile testing fixture according to one embodiment of the utility model.

[0021] Figure 5 It is a partial exploded view of the first clamping assembly in the waterproof coiled material tensile testing fixture of one embodiment of the utility model;

[0022] Figure 6 This is a partial exploded view of a movable bracket in a waterproof coiled material tensile testing fixture according to an embodiment of the utility model.

[0023] In the above drawings: 1. base; 11. slide groove; 2. first clamping assembly; 21. clamping seat; 22. first clamping groove; 23. first clamping plate; 24. first locking screw; 25. first locking knob; 26. first through hole; 27. first guide rod; 28. first spring; 29. ​​first guide hole; 3. movable bracket; 31. slider; 32. guide groove; 4. first drive assembly; 41. motor; 42. screw rod; 5. guide roller; 6. tensioning roller; 61. second clamping groove; 62. second locking screw; 63. second locking knob; 64. second guide rod; 65. second spring; 66. mounting rod; 7. second clamping assembly; 71. second clamping plate; 72. second through hole; 73. second guide hole; 8. second drive assembly; 81. adjusting screw; 82. adjusting knob; 83. pull rod. DETAILED DESCRIPTION

[0024] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] like Figures 1 to 6 As shown, an embodiment of the utility model proposes a waterproof membrane stretching test fixture, which is used to clamp the waterproof membrane during the process of testing the tensile strength of the waterproof membrane, and fix the two ends of the waterproof membrane respectively to facilitate the stretching of the waterproof membrane.

[0026] Please refer to Figure 1 and Figure 2 The waterproof coiled material stretching detection fixture comprises a base 1, on which a first clamping assembly 2, a movable bracket 3 and a first driving assembly 4 are arranged, wherein the first clamping assembly 2 is arranged at one end of the base 1 and the first clamping assembly 2 is used to clamp one end of the waterproof coiled material to be detected, the movable bracket 3 is movably arranged on the base 1, the first driving assembly 4 is transmission-connected with the movable bracket 3 and drives the movable bracket 3 to approach or move away from the first clamping assembly 2, the movable bracket 3 is provided with a guide roller 5, a tensioning roller 6 and a second driving assembly 8, the guide roller 5 and the tensioning roller 6 They are respectively rotatably connected to the movable bracket 3, and the tensioning roller 6 is provided with a second clamping component 7 for clamping the other end of the waterproof membrane to be tested, and the second driving component 8 is transmission-connected to the tensioning roller 6 and drives the tensioning roller 6 to rotate or locks the position of the tensioning roller 6, and after the two ends of the waterproof membrane are respectively clamped on the first clamping component 2 and the second clamping component 7, the second driving component 8 drives the tensioning roller 6 to rotate to flatten the waterproof membrane, and the second driving component 8 locks the position of the tensioning roller 6 to keep the waterproof membrane flat and abut against the guide roller 5.

[0027] Specifically, the operating steps of using the waterproof membrane tensile testing fixture provided in this embodiment to test the tensile strength of the waterproof membrane are as follows: first operate the first clamping component 2 to clamp one end of the waterproof membrane, and then operate the second clamping component 7 to clamp the other end of the waterproof membrane to complete the clamping. After the clamping is completed, operate the second driving component 8 to rotate the tensioning roller 6 to tighten the waterproof membrane and make the waterproof membrane abut against the guide roller 5 to flatten the waterproof membrane. After the waterproof membrane is flattened, operate the second driving component 8 to lock the position of the tensioning roller 6 to keep the waterproof membrane flat between the first clamping component 2 and the second clamping component 7 and prevent the waterproof membrane from wrinkling during the testing process. Then, drive the movable bracket 3 to move away from the first clamping component 2 by the first driving component 4 until the waterproof membrane is broken to test the tensile strength of the waterproof membrane. The waterproof coiled material stretch detection fixture provided in this embodiment can ensure that the waterproof coiled material remains flat after being clamped, prevent the waterproof coiled material from wrinkling to improve the detection accuracy, and the waterproof coiled material stretch detection fixture is simple to clamp and easy to use.

[0028] like Figure 1 , Figure 4 and Figure 5 As shown, the first clamping assembly 2 includes a clamping seat 21 fixed on the base 1, a first clamping groove 22 is provided on the clamping seat 21, and a first clamping plate 23 that can be lifted and lowered is also provided on the clamping seat 21, and the first clamping plate 23 partially extends into the first clamping groove 22. One end of the waterproof coiled material is placed into the first clamping groove 22, and the waterproof coiled material is pressed against the clamping seat 21 by the first clamping plate 23, so that one end of the waterproof coiled material is kept on the first clamping assembly 2 during the detection process, ensuring that the waterproof coiled material tensile detection fixture is reliable.

[0029] In detail, a plurality of protruding first teeth are provided in the first clamping groove 22, and a second tooth matching with the first teeth is provided on the portion of the first clamping plate 23 extending into the first clamping groove 22. The engagement of the first teeth with the second teeth can increase the contact area between the clamping seat 21 and the first clamping plate 23 and the waterproofing membrane, thereby ensuring that the waterproofing membrane remains stable between the clamping seat 21 and the first clamping plate 23, and preventing the waterproofing membrane from being separated from the first clamping assembly 2 during the stretching process.

[0030] Please combine Figure 4 and Figure 5The clamping seat 21 is also provided with a vertical first locking screw 24 and a first locking knob 25 that cooperates with the first locking screw 24. The first clamping plate 23 is provided with a first through hole 26 for the first locking screw 24 to pass through. The first locking knob 25 abuts against a side of the first clamping plate 23 away from the clamping seat 21 and presses the first clamping plate 23 onto the clamping seat 21. By turning the first locking knob 25, the first locking knob 25 can be moved along the axial direction of the first locking screw 24. When the first locking knob 25 moves toward the direction close to the clamping seat 21, the first locking knob 25 presses the first clamping plate 23 onto the clamping seat 21. At this time, the first clamping plate 23 clamps the waterproof membrane between the clamping seat 21 and the first clamping plate 23. When the first locking knob 25 moves in the direction away from the clamping seat 21, the first clamping plate 23 can move in the direction away from the clamping seat 21. At this time, the first clamping plate 23 can withdraw from the first clamping groove 22 and take out the waterproof membrane in the first clamping groove 22, so as to facilitate the operation of the first clamping assembly 2.

[0031] Specifically, a vertical first guide rod 27 is also provided on the clamping seat 21, and a first spring 28 is sleeved on the first guide rod 27. A first guide hole 29 matching with the first guide rod 27 is provided on the first clamping plate 23. The first spring 28 abuts against a side of the first clamping plate 23 away from the first locking knob 25 and drives the first clamping plate 23 to move in a direction away from the clamping seat 21. The first guide rod 27 cooperates with the first guide hole 29 to guide the first clamping plate 23 to move on the clamping seat 21, ensuring that the first clamping plate 23 extends into the first clamping groove 22 along a preset direction when pressing the waterproof membrane, avoiding unexpected deviation of the first clamping plate 23, which causes the first clamping assembly 2 to be unable to clamp the waterproof membrane, and rotating the first locking knob 25 so that the first spring 28 is compressed when the first clamping plate 23 clamps the waterproof membrane, and rotating the first locking knob 25 to release the clamping of the waterproof membrane, and the first spring 28 restores its original length and pushes the first clamping plate 23 away from the clamping seat 21, so that the first clamping plate 23 is away from the waterproof membrane in the first clamping groove 22 to facilitate the removal of the waterproof membrane.

[0032] like Figure 2 and Figure 4As shown, in this embodiment, a slide groove 11 is provided on the base 1, and the length direction of the slide groove 11 is consistent with the moving direction of the movable bracket 3, and a slider 31 matching the slide groove 11 is provided on the movable bracket 3. The slide groove 11 is used to guide the movable bracket 3 to move on the base 1 to prevent the movable bracket 3 from unexpectedly deviating, so that the waterproof coiled material clamped on the waterproof coiled material stretching detection fixture is stretched along its length direction during the movement of the movable bracket 3, ensuring reliable detection results.

[0033] In detail, the first driving assembly 4 includes a motor 41 and a screw rod 42 arranged at the output end of the motor 41, the screw rod 42 is rotatably arranged on the base 1 and the axial direction of the screw rod 42 is consistent with the moving direction of the movable bracket 3, and the movable bracket 3 is provided with a threaded hole matched with the screw rod 42. The motor 41 drives the screw rod 42 to rotate, so as to drive the movable bracket 3 away from the first clamping assembly 2 along the axial direction of the screw rod 42, thereby driving the second clamping assembly 7 to move to stretch the waterproofing coiled material clamped on the waterproofing coiled material stretching detection fixture, and after the stretching detection is completed, the motor 41 drives the screw rod 42 to rotate in the opposite direction to reset the movable bracket 3, so as to continuously perform the detection operation.

[0034] like Figure 1 , Figure 4 and Figure 6 As shown, the tension roller 6 is provided with a second clamping groove 61, and the second clamping assembly 7 includes a second clamping plate 71 that can move along the radial direction of the tension roller 6, and the second clamping plate 71 partially extends into the second clamping groove 61. The second clamping groove 61 is provided on the tension roller 6 to accommodate one end of the waterproof coiled material, and the second clamping plate 71 extends into the second clamping groove 61 to clamp the waterproof coiled material between the tension roller 6 and the second clamping plate 71, so as to fix the relative position of the waterproof coiled material and the tension roller 6, and prevent the waterproof coiled material from falling off during the detection process.

[0035] Specifically, a plurality of protruding third teeth are provided in the second clamping groove 61, and a fourth tooth cooperating with the third teeth is provided on the portion of the second clamping plate 71 extending into the second clamping groove. The engagement of the third teeth with the fourth teeth can increase the contact area between the tensioning roller 6 and the second clamping plate and the waterproofing membrane, ensuring that the waterproofing membrane remains stable between the tensioning roller 6 and the second clamping plate 71, and preventing the waterproofing membrane from detaching from the second clamping assembly 7 during the stretching process.

[0036] Please combine Figure 4 and Figure 6The tensioning roller 6 is also provided with a second locking screw 62 and a second locking knob 63 that matches the second locking screw 62. The axial direction of the second locking screw 62 is consistent with the radial direction of the tensioning roller 6. The second clamping plate 71 is provided with a second through hole 72 for the second locking screw 62 to pass through. The second locking knob 63 abuts against the side of the second clamping plate 71 away from the tensioning roller 6 and presses the second clamping plate 71 onto the tensioning roller 6. By turning the second locking knob 63, the second locking knob 63 can be moved along the axial direction of the second locking screw 62. When the second locking knob 63 moves toward the direction close to the tensioning roller 6, the second locking knob 63 presses the second clamping plate 71 onto the tensioning roller 6. At this time, the second clamping plate 71 clamps the waterproof membrane between the tensioning roller 6 and the second clamping plate 71. When the second locking knob 63 moves toward the direction away from the tensioning roller 6, the second clamping plate 71 can move toward the direction away from the tensioning roller 6. At this time, the second clamping plate 71 can withdraw from the second clamping groove 61 and take out the waterproof membrane in the second clamping groove 61, so as to facilitate the operation of the second clamping assembly 7.

[0037] In detail, the tensioning roller 6 is also provided with a second guide rod 64 and the second guide rod 64 is sleeved with a second spring 65. The axial direction of the second guide rod 64 is consistent with the radial direction of the tensioning roller 6. The second clamping plate 71 is provided with a second guide hole 73 that matches the second guide rod 64. The second spring 65 abuts against a side of the second clamping plate 71 away from the second locking knob 63 and drives the second clamping plate 71 to move in a direction away from the tensioning roller 6. The second clamping plate 71 is guided to move on the tensioning roller 6 by the cooperation between the second guide rod 64 and the second guide hole 73, ensuring that the second clamping plate 71 extends into the second clamping groove 61 along a preset direction when pressing the waterproof membrane, avoiding unexpected deviation of the second clamping plate 71, which causes the second clamping assembly 7 to be unable to clamp the waterproof membrane, and the second spring 65 is compressed when the second clamping plate 71 clamps the waterproof membrane by turning the second locking knob 63, and the second spring 65 restores its original length and pushes the second clamping plate 71 away from the tensioning roller 6 when the second clamping plate 71 is turned to release the clamping of the waterproof membrane, so as to make the second clamping plate 71 away from the waterproof membrane in the second clamping groove 61 to facilitate the removal of the waterproof membrane.

[0038] Please refer to Figure 2 , Figure 3 and Figure 6In this embodiment, the second driving assembly 8 includes an adjusting screw 81 fixed on the movable bracket 3 and an adjusting knob 82 matched with the adjusting screw 81, the rotating axis of the adjusting screw 81 coincides with the rotating axis of the tensioning roller 6, and a pull rod 83 is provided on the adjusting knob 82, and the end of the pull rod 83 away from the adjusting knob 82 is movably connected to the tensioning roller 6 and the pull rod 83 can move relative to the tensioning roller 6 along the axial direction of the tensioning roller 6. When the adjusting knob 82 is turned, the tensioning roller 6 is driven by the pull rod 83 to rotate, thereby tightening the waterproof membrane clamped on the waterproof membrane stretching detection fixture, and the position of the adjusting knob 82 can be locked through the threaded connection between the adjusting knob 82 and the adjusting screw 81, so that the tensioning roller 6 is kept in the position where the waterproof membrane is tightened, and when the adjusting screw 81 is rotated, the adjusting knob 82 moves along the axial direction of the adjusting screw 81, and drives the pull rod 83 to move along the axial direction of the tensioning roller 6, ensuring that the tensioning roller 6 moves stably under the drive of the adjusting knob 82, and avoiding the tensioning roller 6 from being unable to rotate due to the jamming of the pull rod 83.

[0039] Specifically, the tension roller 6 is provided with a protruding mounting rod 66, the axial direction of the mounting rod 66 is consistent with the axial direction of the tension roller 6, and the end of the pull rod 83 close to the tension roller 6 is provided with a mounting hole matched with the mounting rod 66, and the pull rod 83 slides on the mounting rod 66 along the axial direction of the mounting rod 66. The mounting rod 66 is provided on the tension roller 6 for the installation of the pull rod 83, so that the connection between the pull rod 83 and the tension roller 6 is reliable, so that the pull rod 83 can stably drive the tension roller 6 to rotate, and when the adjusting knob 82 is rotated, the pull rod 83 slides on the mounting rod 66, so as to prevent the pull rod 83 from being separated from the tension roller 6 when the tension roller 6 is in motion, which is conducive to improving the stability of the waterproof coiled material tensile testing fixture structure.

[0040] like Figure 6 As shown, the movable bracket 3 is also provided with a guide groove 32 for the pull rod 83 to pass through. The guide groove 32 is in a fan-shaped shape and the center of the guide groove 32 is located on the rotation axis of the tension roller 6. The pull rod 83 is in contact with the inner wall of the guide groove 32. The guide groove 32 is used to guide the movement of the pull rod 83. When the adjustment knob 82 is rotated, the pull rod 83 slides in the guide groove 32, so as to support the pull rod 83 through the movable bracket 3, prevent the pull rod 83 from producing an unexpected movement to affect the adjustment of the tension roller 6, and facilitate the adjustment of the tension roller 6 to the position where the waterproof membrane is flattened.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A waterproof coiled material tensile testing fixture, characterized by: It includes a base, on which a first clamping assembly, a movable bracket and a first driving assembly are provided, the first clamping assembly is arranged at one end of the base, the movable bracket is movably arranged on the base, the first driving assembly is transmission-connected with the movable bracket and drives the movable bracket to approach or move away from the first clamping assembly, the movable bracket is provided with a guide roller, a tensioning roller and a second driving assembly, the guide roller and the tensioning roller are respectively rotationally connected to the movable bracket and the tensioning roller is provided with a second clamping assembly, the second driving assembly is transmission-connected with the tensioning roller and drives the tensioning roller to rotate or lock the position of the tensioning roller.

2. A waterproof coiled material tensile testing fixture as claimed in claim 1, characterized in that: The first clamping assembly includes a clamping seat fixed on the base, a first clamping groove is provided on the clamping seat, and a first clamping plate which can be lifted and lowered is also provided on the clamping seat, and the first clamping plate partially extends into the first clamping groove.

3. A waterproof coiled material tensile testing fixture as claimed in claim 2, characterized in that: The clamping seat is also provided with a vertical first locking screw and a first locking knob matching the first locking screw. The first clamping plate is provided with a first through hole for the first locking screw to pass through. The first locking knob abuts against a side of the first clamping plate away from the clamping seat and presses the first clamping plate onto the clamping seat.

4. A waterproof coiled material tensile testing fixture as claimed in claim 3, characterized in that: The clamping seat is also provided with a vertical first guide rod and the first guide rod is sleeved with a first spring, the first clamping plate is provided with a first guide hole matching with the first guide rod, the first spring abuts against a side of the first clamping plate away from the first locking knob and drives the first clamping plate to move in a direction away from the clamping seat.

5. A waterproof coiled material tensile testing fixture as claimed in claim 1, characterized in that: The base is provided with a slide groove, the length direction of the slide groove is consistent with the moving direction of the movable bracket, and the movable bracket is provided with a sliding block matched with the slide groove.

6. A waterproof coiled material tensile testing fixture as claimed in claim 1, characterized in that: The first driving assembly includes a motor and a screw rod arranged at the output end of the motor. The screw rod is rotatably arranged on the base and the axial direction of the screw rod is consistent with the moving direction of the movable bracket. The movable bracket is provided with a threaded hole matching the screw rod.

7. A waterproof coiled material tensile testing fixture as claimed in claim 1, characterized in that: The tensioning roller is provided with a second clamping groove, and the second clamping assembly comprises a second clamping plate which can move along the radial direction of the tensioning roller, and the second clamping plate partially extends into the second clamping groove.

8. A waterproof coiled material tensile testing fixture as claimed in claim 7, characterized in that: The tensioning roller is also provided with a second locking screw and a second locking knob matching with the second locking screw. The axial direction of the second locking screw is consistent with the radial direction of the tensioning roller. The second clamping plate is provided with a second through hole for the second locking screw to pass through. The second locking knob abuts against a side of the second clamping plate away from the tensioning roller and presses the second clamping plate onto the tensioning roller.

9. A waterproof coiled material tensile testing fixture as claimed in claim 8, characterized in that: The tensioning roller is also provided with a second guide rod and the second guide rod is sleeved with a second spring. The axial direction of the second guide rod is consistent with the radial direction of the tensioning roller. The second clamping plate is provided with a second guide hole matching with the second guide rod. The second spring abuts against a side of the second clamping plate away from the second locking knob and drives the second clamping plate to move in a direction away from the tensioning roller.

10. A waterproof coiled material tensile testing fixture as claimed in claim 1, characterized in that: The second driving assembly includes an adjusting screw fixed on the movable bracket and an adjusting knob matching the adjusting screw, the rotating axis of the adjusting screw coincides with the rotating axis of the tensioning roller, a pull rod is provided on the adjusting knob, one end of the pull rod away from the adjusting knob is movably connected to the tensioning roller and the pull rod can move relative to the tensioning roller along the axial direction of the tensioning roller.

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