Tension testing device

Abstract

The embodiment of the utility model relates to the technical field of medical instruments, and particularly discloses a tension testing device which comprises a base, the fixing module is arranged on the base, the fixing module is provided with a fixing groove, at least part of a to-be-tested piece is fixed in the fixing groove, and one end of the to-be-tested piece extends out of the fixing groove in the first direction; the supporting frame is arranged on the base, and the supporting frame and the fixing module are arranged in a spaced mode in the first direction; the moving assembly is arranged on the side, away from the base, of the supporting frame. The tension meter is arranged on the moving assembly, the tension meter is connected with one end of the to-be-measured piece, and the moving assembly can drive the tension meter to move in the first direction; and the driving assembly is connected with the moving assembly, and the driving assembly is used for controlling the moving assembly to move. According to the embodiment of the utility model, the tension test efficiency of the conduit wire can be improved.

Description

Technical Field

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

[0002] An intravascular coagulation (ICC) catheter, or intravascular catheter, is a medical device commonly used for intravascular drug delivery, monitoring of physiological parameters, or diagnostic and therapeutic procedures. To ensure the proper functioning of an ICC catheter, a tensile test is performed on the catheter line before it leaves the factory. In this process, the catheter line is typically connected to a tensile tester, and the test is conducted by manually pulling the tester to a preset distance.

[0003] In the process of realizing this utility model, the inventors discovered that: using a manual pull force gauge to test the tension of a conduit is inefficient, and the measured data has a large deviation, poor stability, and is inconvenient. Utility Model Content

[0004] In view of the above problems, this utility model provides a tensile testing device that overcomes or at least partially solves the above problems.

[0005] According to one aspect of the present invention, a tensile testing device is provided, comprising: a base; a fixing module disposed on the base, the fixing module having a fixing groove, at least a portion of a test piece being fixed in the fixing groove, one end of the test piece extending out of the fixing groove along a first direction; a support frame disposed on the base, the support frame and the fixing module being spaced apart along the first direction; a moving component disposed on the side of the support frame opposite to the base; a tensile gauge disposed on the moving component, the tensile gauge being connected to one end of the test piece, and the moving component being capable of driving the tensile gauge to move in the first direction; and a driving component connected to the moving component, the driving component being used to control the movement of the moving component.

[0006] In one alternative embodiment, a tension guide block is provided at one end of the tension gauge near the fixed module, and a winding post is provided on the tension guide block, with one end of the test piece wound around the winding post.

[0007] In one alternative embodiment, the extension direction of the winding post is perpendicular to the extension direction of the test piece, and the winding post is provided with a plurality of anti-slip ring grooves, which are spaced apart from each other.

[0008] In one alternative embodiment, the fixing module includes a supporting base block and a supporting cover plate. The supporting base block is fixed to the base, and the supporting cover plate is rotatably connected to the supporting base block. The supporting base block has a fixing groove at one end opposite to the base. The supporting base block also has a first opening and a second opening communicating with the fixing groove. The first opening and the second opening are arranged opposite to each other along the first direction. The supporting cover plate can open or close the fixing groove. A portion of the test piece extends out from the first opening, and one end of the test piece extends out from the second opening and connects to the tension gauge.

[0009] In one alternative embodiment, a hook is provided on the side wall of the support cover plate, and a buckle is provided on the side wall of the support base block. When the support cover plate is placed on the support base block, the buckle engages with the hook.

[0010] In one optional embodiment, the fixing module includes an upper pressing block, a lower pressing block, and a fixing buckle. The upper pressing block and the lower pressing block are both disposed within the fixing groove. The upper pressing block is provided with a first pressing groove, and the lower pressing block is provided with a second pressing groove. The upper pressing block and the lower pressing block are fastened together by the fixing buckle. The first pressing groove and the second pressing groove are disposed opposite to each other and are connected to form a pressing groove. At least a portion of the test piece is located within the pressing groove.

[0011] In one alternative embodiment, the support frame includes a horizontal plate fixed relative to the base; the movable component includes a sliding rail and a sliding slider, the sliding rail being mounted on the horizontal plate, the sliding slider being mounted on the side of the sliding rail opposite to the horizontal plate, the sliding slider being movable along the sliding rail in the first direction, the side of the sliding slider opposite to the sliding rail being connected to the tension gauge, and the sliding slider being able to drive the tension gauge to move along the first direction.

[0012] In one optional embodiment, the support frame includes a first vertical plate and a second vertical plate, which are spaced apart along the first direction. The first and second vertical plates are respectively connected to the two ends of the horizontal plate, and the horizontal plate is located between the first and second vertical plates along the first direction. The driving assembly includes a lead screw seat, a lead screw, a connecting block, and a driving member. The lead screw seat is connected to the side of the movable slider away from the movable slide rail. One side of the connecting block is connected to the lead screw seat, and the other side of the connecting block is connected to the tension gauge. One end of the lead screw passes through the second vertical plate and is rotatably connected to the lead screw seat. The other end of the lead screw is connected to the driving member, which can drive the lead screw to rotate. The lead screw can drive the lead screw seat to move along the first direction.

[0013] In one alternative embodiment, the drive assembly further includes a locking member disposed on the second vertical plate and rotatably connected to the second vertical plate. When the locking member is rotated to a first position, the locking member abuts against the lead screw and locks the lead screw. When the locking member is rotated to a second position, the locking member no longer abuts against the lead screw.

[0014] In one alternative embodiment, a scale is provided on the base; a pointer plate is provided on the side of the lead screw seat, and the pointer plate points to the scale.

[0015] In one alternative embodiment, a limiting groove is provided on the side of the base near the support frame; a limiting block is also provided on the base, the limiting block being detachably installed in the limiting groove, and the limiting block being used to restrict the movement of the lead screw seat along the first direction.

[0016] In one alternative embodiment, the support frame further includes a dust cover, the two ends of which overlap the first vertical plate and the second vertical plate, respectively, and the dust cover is located above the lead screw.

[0017] The beneficial effects of this utility model embodiment are as follows: Unlike the prior art, this utility model embodiment includes a base, a fixing module, a support frame, a moving component, a force gauge, and a driving component. The fixing module is mounted on the base and has a fixing groove. At least a portion of the workpiece to be tested is fixed within the fixing groove, with one end of the workpiece extending from the fixing groove along a first direction. The support frame is mounted on the base and is spaced apart from the fixing module along the first direction. The moving component is located on the side of the support frame facing away from the base. The force gauge is mounted on the moving component and connected to one end of the workpiece to be tested. The moving component can drive the force gauge to move in the first direction. The driving component is connected to the moving component and controls the movement of the moving component. This configuration allows the user to apply tension to the conduit when needed. During testing, the moving component can be controlled by the drive component. The moving component can drive the tension gauge to move away from the conduit, pulling the conduit until the moving component moves to a preset position. Compared to the existing technology that uses manual pulling of the tension gauge to test the tension of the conduit, this embodiment of the application, by using the cooperation of the drive component and the moving component, not only improves the automation level of the tensile test compared to the traditional method that relies solely on manual operation, but also achieves more precise displacement control through the precise transmission of the lead screw, thereby improving the accuracy of the test results. Furthermore, the special design of the fixed module, such as the rotatable support cover and the clamping groove structure, can better adapt to test pieces of different types and sizes, which is not available in the prior art. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the specific embodiments of this utility model or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0019] Figure 1 This is a schematic diagram of the overall structure of the tensile testing device according to an embodiment of this utility model;

[0020] Figure 2 This is an exploded view of the overall structure of the tensile testing device according to an embodiment of this utility model;

[0021] Figure 3 yes Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 4 This is a side sectional view of the tensile testing device according to an embodiment of the present invention;

[0023] Figure 5 yes Figure 2 Enlarged schematic diagram of the structure at point B;

[0024] Figure 6 This is a cross-sectional view of the tensile testing device of this utility model before movement;

[0025] Figure 7 This is a side cross-sectional view of the tensile testing device according to an embodiment of the present invention after movement. Detailed Implementation

[0026] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0028] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0029] It should be noted that the test components in this application embodiment include, but are not limited to, catheter 70 and catheter lines 701 located within catheter 70. The types of catheter 70 include, but are not limited to, ICE catheters, central venous catheters, percutaneous catheters, urinary catheters, nasogastric tubes, cardiac catheters, laparoscopic examination tubes, fallopian tube catheters, and spinal cord catheters. This application uses an ICE catheter as an example, and the tensile test is performed on the catheter lines within the ICE catheter. It is understood that the diameter of catheter 70 includes, but is not limited to, 10f, 8f, and 6f, and the number of catheter lines within the same catheter 70 can be 2, 4, or other similar values.

[0030] Please see Figure 1 and Figure 2 The tensile testing device 1000 includes a base 10, a fixing module 20, a support frame 30, a moving component 40, a force gauge 50, and a drive component 60. The fixing module 20 and the support frame 30 are spaced apart on the base 10 along a first direction. The moving component 40 is mounted on the support frame 30, and the force gauge 50 is mounted on the moving component 40. The moving component 40 can drive the force gauge 50 to move along the first direction. The drive component 60 is connected to the moving component 40 and is used to control the movement of the moving component 40. The fixing module 20 is used to fix the conduit 70. The base 10, fixing module 20, support frame 30, moving component 40, force gauge 50, and drive component 60 are described in detail below. It should be noted that the first direction refers to the length direction along the base 10. It can be understood that the tensile testing device 1000 can be placed at different angles on a plane to perform tensile tests on the conduit 701 in different directions.

[0031] Regarding the aforementioned base 10 and fixing module 20, as Figures 1-3 As shown, the fixing module 20 is disposed on the base 10 and is used to fix the conduit 70. Specifically, the fixing module 20 includes a supporting base block 201 and a supporting cover plate 202. The supporting base block 201 is fixed to the base 10, and the supporting cover plate 202 is rotatably connected to the supporting base block 201. A fixing groove 2011 is provided at the end of the supporting base block 201 away from the base 10. At least a portion of the conduit 70 is fixed in the fixing groove 2011, and the end of the conduit 701 away from the conduit extends out of the fixing groove 2011 in a first direction. When the tensile test begins, the conduit 70 to be tested is fixed in the fixing groove 2011.

[0032] In some embodiments, the support base 201 has a first opening 201a and a second opening 201b communicating with the fixing groove 2011. The first opening 201a and the second opening 201b are arranged opposite to each other along a first direction. The support cover 202 can open or close the fixing groove 2011. A portion of the conduit 70 extends out from the first opening 201a, and the end of the conduit line 701 facing away from the conduit 70 extends out from the second opening 201b to connect to the tension gauge 50. In some embodiments, a hook 2021 is provided on the side wall of the support cover 202, and a buckle 2012 is provided on the side wall of the support base 201. When the support cover 202 is placed on the support base 201, the buckle 2012 can be used to engage with the hook 2021, thereby locking the support cover 202 onto the support base 201.

[0033] In some embodiments, please refer to the following: Figure 4 The fixing module 20 also includes an upper pressing block 203, a lower pressing block 204, and a fixing buckle 205. The upper pressing block 203 and the lower pressing block 204 are both disposed in the fixing groove 2011. The upper pressing block 203 is provided with a first pressing groove 2031, and the lower pressing block 204 is provided with a second pressing groove 2041. The upper pressing block 203 and the lower pressing block 204 are fastened and locked by the fixing buckle 205. The first pressing groove 2031 and the second pressing groove 2041 are arranged opposite to each other and are connected to form a pressing groove. At least a portion of the conduit 70 and the conduit line 701 are located in the pressing groove. The upper pressing block 203 and the lower pressing block 204 are used to press the conduit 70 and the conduit line 701 to limit the conduit 70 within the fixing groove 2011.

[0034] In some embodiments, a scale 101 is provided on the base 10, which facilitates the measurement of the movement distance of the tension gauge 50 in the first direction.

[0035] For the aforementioned support frame 30, such as Figure 1 and Figure 2 As shown, the support frame 30 is disposed on the base 10. The support frame 30 and the fixing module 20 are spaced apart along the first direction. The support frame 30 facilitates the installation of the aforementioned moving component 40 and driving component 60. Specifically, the support frame 30 includes a first vertical plate 301, a horizontal plate 302, and a second vertical plate 303. The first vertical plate 301 and the second vertical plate 303 are spaced apart along the first direction. The horizontal plate 302 is relatively fixed to the base 10. The first vertical plate 301 and the second vertical plate 303 are respectively connected to the two ends of the horizontal plate 302. The horizontal plate 302 is located between the first vertical plate 301 and the second vertical plate 303 along the first direction. The horizontal plate 302 facilitates the installation of components in the moving component 40, and the first vertical plate 301 and the second vertical plate 303 facilitate the installation of components in the driving component 60.

[0036] In some embodiments, the support frame 30 further includes a dust cover 304, the two ends of which overlap the first vertical plate 301 and the second vertical plate 303 respectively. The dust cover 304 is located above the lead screw of the drive assembly 60. The dust cover 304 can reduce the entry of external dust or rainwater into the drive assembly 60 and the moving assembly 40, so as to reduce the impact on the components in the drive assembly 60 and the moving assembly 40.

[0037] For the aforementioned moving component 40 and force gauge 50, such as Figure 2 As shown, the movable component 40 is disposed on the side of the support frame 30 away from the base 10, and the tension gauge 50 is disposed on the movable component 40. The tension gauge 50 is connected to the end of the conduit 701 away from the conduit 70. The movable component 40 can drive the tension gauge 50 to move in the first direction, and the tension gauge 50 can display the tension data of the conduit 701.

[0038] Specifically, the movable component 40 includes a movable slide rail 401 and a movable slider 402. The movable slide rail 401 is mounted on a horizontal plate 302, and the movable slider 402 is mounted on the side of the movable slide rail 401 facing away from the horizontal plate 302. The movable slider 402 can move along the movable slide rail 401 in a first direction. A tension gauge 50 is connected to the side of the movable slider 402 facing away from the movable slide rail 401, and the movable slider 402 can drive the tension gauge 50 to move in the first direction. Optionally, a mounting groove is provided on the side of the movable slider 402 near the movable slide rail 401, and a portion of the movable slide rail 401 is inserted into the mounting groove. The mounting groove is a dovetail groove. This design ensures a tight connection between the movable slider 402 and the movable slide rail 401, and restricts the movable slider 402 to move only in the first direction.

[0039] In some embodiments, a tension guide block 51 is provided at one end of the tension gauge 50 near the fixing module 20, and a winding post 511 is provided on the tension guide block 51. One end of the guide wire 701 is wound around the winding post 511. The tension guide block 51 ensures the correct transmission and guidance of force between the guide wire 701 and the tension gauge 50, while the winding post 511 facilitates the connection of the guide wire 701 to the tension gauge 50. Optionally, the extension direction of the winding post 511 is perpendicular to the extension direction of the test piece. This arrangement facilitates the winding of the guide wire 701 around the winding post 511. Please refer to [further details omitted]. Figure 5 The winding post 511 is provided with multiple anti-slip grooves 511a, which are spaced apart. The anti-slip grooves 511a can reduce the slippage of the conduit 701 on the winding post 511. It is understood that the shape of the winding post 511 is not specifically limited in this application, and the shape of the winding post 511 includes, but is not limited to, square column, cylindrical or other irregular shapes.

[0040] It should be noted that: Please refer to the following as well. Figure 6 and Figure 7 After the tension gauge 50 pulls the conduit 701 a preset distance along the first direction, the end of the conduit 70 away from the tension gauge 50 will bend. The user can use relevant bending diagrams and measuring tools to measure the degree of bending of the conduit 70 according to actual needs.

[0041] For the aforementioned driver component 60, such as Figure 1 and Figure 2 As shown, the drive component 60 is connected to the moving component 40, and the drive component 60 is used to control the movement of the moving component 40.

[0042] Please refer to the following for details. Figure 6 and Figure 7 The drive assembly 60 includes a lead screw seat 601, a lead screw 602, a connecting block 603, and a drive component 604. The lead screw seat 601 is connected to the side of the movable slider 402 facing away from the movable slide rail 401. One side of the connecting block 603 is connected to the lead screw seat 601, and the other side of the connecting block 603 is connected to the tension gauge 50. One end of the lead screw passes through the second vertical plate 303 and is rotatably connected to the lead screw seat 601. The other end of the lead screw is connected to the drive component 604. The drive component 604 can drive the lead screw to rotate, and the lead screw can drive the lead screw seat 601 to move along a first direction. The lead screw seat 601 can drive the movable slider 402 to move along the movable slide rail 401 along the first direction. At the same time, the lead screw seat 601 can drive the tension gauge 50 to move along the first direction. Optionally, the drive component 604 can be a hand crank or a drive motor, etc. In this embodiment, the drive component 604 is a hand crank, and the user can drive the lead screw to rotate by rotating the hand crank. It is understandable that this application does not specifically limit whether rotating the hand crank counterclockwise or clockwise will cause the force gauge 50 to pull or release the conduit 701. For example, when rotating the hand crank counterclockwise, the lead screw drives the lead screw seat 601 to move away from the conduit 70, at which time the force gauge 50 pulls the conduit 701. When rotating the hand crank clockwise, the lead screw drives the lead screw seat 601 to move closer to the conduit 70, at which time the force gauge 50 releases the conduit 701. It should be noted that using the lead screw to drive the force gauge 50 to move in the first direction provides higher delivery accuracy and facilitates the calculation of the displacement of the force gauge 50 in the first direction.

[0043] In some embodiments, the drive assembly 60 further includes a locking member 605, which is disposed on the second vertical plate 303 and rotatably connected to the second vertical plate 303. When the locking member 605 rotates to the first position, it abuts against the lead screw, locking the lead screw. When the locking member 605 rotates to the second position, it no longer abuts against the lead screw. The locking member 605 includes a rotating part and a limiting part, which are connected. The rotating part is threadedly connected to the second vertical plate 303. The limiting part is provided with a V-shaped notch facing the lead screw. The rotation of the rotating part can drive the limiting part to move closer to or away from the lead screw. When the V-shaped notch on the limiting part abuts against the lead screw, the lead screw is locked. When the V-shaped notch on the limiting part no longer abuts against the lead screw, the lead screw can rotate normally.

[0044] In some embodiments, a pointer plate 6011 is provided on the side of the lead screw holder 601, and the pointer plate 6011 points to the scale 101. It can be understood that the movement distance of the lead screw holder 601 along the first direction can be calculated using the data of the pointer plate 6011 pointing to the scale 101 when the lead screw holder 601 starts to move, and the data of the pointer plate 6011 pointing to the scale 101 when the lead screw holder 601 stops moving.

[0045] In some embodiments, a limiting groove 103 is provided on the side of the base 10 near the support frame 30, and a limiting block 102 is also provided on the base 10. The limiting block 102 is detachably installed in the limiting groove 103 and can be used to limit the movement of the lead screw seat 601 along the first direction. It can be understood that the limiting block 102 can be set at the position corresponding to "0" on the scale 101. When the lead screw seat 601 starts to move, the pointer plate 6011 points to "19" on the scale 101. Under the drive of the lead screw, the lead screw seat 601 can move until the pointer plate 6011 on the lead screw seat 601 points to "0" on the scale 101. At this time, the lead screw seat 601 abuts against the limiting block 102. The specific position of the limiting block 102 can be set by the user according to actual needs, and is not specifically limited in this application. Optionally, there can be two limiting blocks 102, and the two limiting blocks 102 are located on both sides of the lead screw seat 601.

[0046] In this embodiment of the invention, a base 10, a fixing module 20, a support frame 30, a moving component 40, a force gauge 50, and a driving component 60 are provided. The fixing module 20 is disposed on the base 10 and has a fixing groove 2011. At least partially, the conduit 70 is fixed within the fixing groove 2011. One end of the conduit 70, facing away from the conduit 70, extends from the fixing groove 2011 along a first direction. The support frame 30 is disposed on the base 10 and is spaced apart from the fixing module 20 along the first direction. The moving component 40 is disposed on the side of the support frame 30 facing away from the base 10. The force gauge 50 is disposed on the moving component 40 and is connected to the end of the conduit 701 facing away from the conduit 70. The moving component 40 can drive the force gauge 50 to move in the first direction. The driving component 60 is connected to the moving component 40 and is used to control the movement of the moving component 40. In this configuration, when the user needs to test the tensile strength of the conduit 701, the drive component 60 can control the movement of the moving component 40. The moving component 40 can drive the tension gauge 50 to move away from the conduit 70, and the tension gauge 50 pulls the conduit 701 until the moving component 40 moves to a preset position. Compared with the prior art, which uses manual pulling of the tension gauge 50 to test the tensile strength of the conduit 701, this embodiment of the application, by using the cooperation of the drive component 60 and the moving component 40, not only improves the automation level of tensile testing compared with the traditional method that relies solely on manual operation, but also achieves more precise displacement control through the precise transmission of the lead screw, thereby improving the accuracy of the test results. At the same time, the special design of the fixed module 20, such as the rotatable support cover 202 and the clamping groove structure, can better adapt to test pieces of different types and sizes, which is not available in the prior art.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A tensile testing device, characterized by The device comprises: a base; a fixing module arranged on the base, the fixing module being provided with a fixing groove, at least part of a test piece being fixed in the fixing groove, one end of the test piece extending out of the fixing groove in a first direction; a support frame arranged on the base, the support frame being arranged in the first direction away from the fixing module; a moving assembly arranged on a side of the support frame away from the base; a tensile force gauge arranged on the moving assembly, the tensile force gauge being connected to one end of the test piece, and the moving assembly being capable of moving the tensile force gauge in the first direction; a driving assembly connected to the moving assembly, the driving assembly being used to control the movement of the moving assembly.

2. The tensile force testing device according to claim 1, wherein one end of the tensile force gauge is provided with a tensile force guide block, the tensile force guide block being provided with a winding column, and one end of the test piece is wound on the winding column.

3. The tensile force testing device according to claim 2, wherein the extension direction of the winding column is perpendicular to the extension direction of the test piece, the winding column is provided with a plurality of anti-skid ring grooves, and the anti-skid ring grooves are arranged in a spaced manner.

4. The tensile force testing device according to claim 1, wherein the fixing module comprises a support base and a support cover plate, the support base is fixed on the base, the support cover plate is rotationally connected to the support base, one end of the support base away from the base is provided with the fixing groove, the support base is further provided with a first opening and a second opening communicating with the fixing groove, the first opening and the second opening are arranged in a relative manner in the first direction, the support cover plate can open or close the fixing groove, part of the test piece extends out of the first opening, and one end of the test piece extends out of the second opening to be connected to the tensile force gauge.

5. The tensile force testing device according to claim 4, wherein a side wall of the support cover plate is provided with a hook, a side wall of the support base is provided with a buckle, and when the support cover plate is arranged on the support base, the buckle is buckled on the hook.

6. The tensile force testing device according to claim 4, wherein the fixing module comprises an upper pressing block, a lower pressing block and a fixing buckle, the upper pressing block and the lower pressing block are arranged in the fixing groove, the upper pressing block is provided with a first pressing groove, the lower pressing block is provided with a second pressing groove, the upper pressing block and the lower pressing block are buckled and locked by the fixing buckle, the first pressing groove and the second pressing groove are arranged in a relative manner, the first pressing groove and the second pressing groove are communicated to form a pressing groove, and at least part of the test piece is located in the pressing groove.

7. The tensile force testing device according to claim 1, wherein the support frame comprises a horizontal plate, and the horizontal plate is fixed relative to the base. The moving assembly comprises a moving slide rail and a moving slide block, the moving slide rail is installed on the horizontal plate, the moving slide block is installed on the side of the moving slide rail away from the horizontal plate, the moving slide block can move along the moving slide rail in the first direction, the side of the moving slide block away from the moving slide rail is connected with the tension meter, and the moving slide block can drive the tension meter to move in the first direction.

8. The tension testing device according to claim 7, characterized in that, The support frame comprises a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are arranged at intervals in the first direction, and the first vertical plate and the second vertical plate are respectively connected to the two ends of the horizontal plate and located between the first vertical plate and the second vertical plate in the first direction. The driving assembly comprises a screw rod base, a screw rod, a connecting block and a driving piece, one side of the connecting block is connected with the screw rod base, the other side of the connecting block is connected with the tension meter, one end of the screw rod is rotatably connected to the screw rod base through the second vertical plate, the other end of the screw rod is connected with the driving piece, the driving piece can drive the screw rod to rotate, and the screw rod can drive the screw rod base to move in the first direction.

9. The tension testing device according to claim 8, characterized in that, The driving assembly further comprises a locking piece, the locking piece is arranged on the second vertical plate and rotatably connected to the second vertical plate, when the locking piece rotates to a first position, the locking piece abuts against the screw rod, the locking piece locks the screw rod, and when the locking piece rotates to a second position, the locking piece no longer abuts against the screw rod.

10. The tension testing device according to claim 8, characterized in that, The base is provided with a limiting groove on the side close to the support frame; The base is further provided with a limiting block, the limiting block is detachably installed in the limiting groove, and the limiting block can be used to limit the movement of the screw rod base in the first direction.

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