A heat shrinkable sleeve tension testing machine
Patent Information
- Application Number
- CN202522482662.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-11-24
AI Technical Summary
[0005]针对现有技术的不足，本实用新型提供了一种热缩套管拉力测试机，可以解决在使用拉力测试机对热缩套管测试时，需要使用夹具对热缩套管两端进行固定，而夹具在长时间使用下，表面易因磨损导致出现毛刺，为了保证夹持的稳定，就需要对其进行维护更换，但现有的拉力测试机夹具的夹板多为不可拆，部分可拆的夹板，在拆装时，需要拆卸多个螺栓，操作较为麻烦问题
1、通过第一夹片和第二夹片相贴合的设置，配合两个夹片上的第二弧形凸起错位设置，实现啮合连接，可以增大热缩套管与第一夹片和第二夹片的接触面积，保证夹持的稳定效果，防止热缩套管被测试时滑动，导致数据准度变差。
Smart Images
Figure CN224802811U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat shrink tubing tensile testing technology, specifically a heat shrink tubing tensile testing machine. Background Technology
[0002] Heat shrink tubing is a type of polymer material tubing that shrinks upon heating. It is mainly used for insulation, rust prevention, waterproofing, and sealing protection of wires, cables, and metal parts. After heat shrink tubing is manufactured, it is often subjected to tensile testing, which is usually done using a tensile testing machine. The tensile testing machine is used to test the mechanical properties of materials, such as tensile, compressive, and bending properties.
[0003] When testing heat shrink tubing with a tensile testing machine, clamps are needed to fix both ends of the heat shrink tubing. However, after long-term use, the surface of the clamps is prone to burrs due to wear. In order to ensure the stability of the clamping, it is necessary to maintain and replace them. However, most of the clamps of existing tensile testing machine clamps are non-removable, and for some removable clamps, multiple bolts need to be removed during disassembly and assembly, which is quite troublesome.
[0004] Therefore, a heat shrink tubing tensile testing machine is proposed to solve the problems mentioned above. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a heat shrink tubing tensile testing machine. This solves the problem that when testing heat shrink tubing with a tensile testing machine, clamps are needed to fix both ends of the heat shrink tubing. However, after prolonged use, the surface of the clamps is prone to wear and burrs, requiring maintenance and replacement to ensure stable clamping. Furthermore, the clamping plates of existing tensile testing machine clamps are mostly non-removable, and even those that are removable require the removal of multiple bolts, making the operation cumbersome.
[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a tensile testing machine body, the tensile testing machine body comprising a lifting plate, a clamping seat fixedly connected to the top of the table surface and the bottom of the lifting plate of the tensile testing machine body, a bidirectional lead screw rotatably connected inside the clamping seat, a clamping plate threadedly connected to the outer side of the bidirectional lead screw, two clamping plates being provided, a guide rod fixedly connected to one side of each clamping plate, a first clamping piece and a second clamping piece respectively provided on the other side of each clamping plate, an anti-rotation mechanism provided at the end of the bidirectional lead screw, an installation mechanism provided at the connection between the first and second clamping pieces and the clamping plate, and a second arc-shaped protrusion fixedly connected to the outer side of both the first and second clamping pieces.
[0007] Preferably, the guide rod slides through the clamping seat, and the top outer wall of the clamping plate is in contact with the inner wall of the clamping seat.
[0008] Preferably, the anti-rotation mechanism includes a gear, a guide plate, a slide rod, an end plate, an arc-shaped groove, an end cover, a toothed groove, a limiting plate, and a first arc-shaped protrusion. The gear is fixedly connected to one end of the bidirectional lead screw, the guide plate is fixedly connected to the outside of the clamping seat, the slide rod slides through and connects to the guide plate, the end plate is fixedly connected to one end of the slide rod, the arc-shaped groove is formed on the outside of the end plate, the end cover is fixedly connected to the other end of the slide rod, the toothed groove is formed inside the end cover, the limiting plate is fixedly connected to the outside of the clamping seat, and the first arc-shaped protrusion is fixedly connected to the inner surface of the limiting plate.
[0009] Preferably, there are two first arc-shaped protrusions, which are engaged inside the arc-shaped groove, and the inner wall of the arc-shaped groove is in contact with the outer wall of the first arc-shaped protrusion.
[0010] Preferably, the inner wall of the tooth groove is adapted to the outer wall of the gear, and the end cover is slidably sleeved on the outside of the gear.
[0011] Preferably, the slide bar is rectangular and the limiting plate is L-shaped.
[0012] Preferably, the installation mechanism includes an installation hole, a post, an annular groove, an anti-detachment plate, a first locking groove, a buckle, and a second locking groove. The installation hole is located on the outside of the clamping plate. The post is fixedly connected to the outside of the first clamping piece and the second clamping piece. The annular groove is located on the outside of the post. The anti-detachment plate is slidably engaged inside the annular groove. The first locking groove is located on the outside of the anti-detachment plate. The buckle is fixedly connected to the inside of the anti-detachment plate. The second locking groove is located on the outside of the clamping plate.
[0013] Preferably, the inner wall of the mounting hole fits against the outer wall of the insertion post, and the end of the buckle is engaged inside the second slot.
[0014] Compared with the prior art, this utility model provides a heat shrink tubing tensile testing machine, which has the following advantages: 1. By fitting the first and second clamping pieces together, and by offsetting the second arc-shaped protrusions on the two clamping pieces, an interlocking connection is achieved. This increases the contact area between the heat shrink tubing and the first and second clamping pieces, ensuring a stable clamping effect and preventing the heat shrink tubing from slipping during testing, which would lead to a decrease in data accuracy.
[0015] 2. The end cover slides and engages with the gear, and the first arc-shaped protrusion limits the end cover, thus achieving the effect of fixing the end cover after sliding. The end cover can limit and prevent the rotation of the bidirectional lead screw, ensuring stable and reliable clamping of the heat shrink tubing and preventing the clamping from loosening due to the rotation of the lead screw during the test.
[0016] 3. The first and second clips are inserted into the mounting holes via the insert post and fixed by the anti-detachment plate, achieving convenient installation and easy replacement. After the anti-detachment plate is installed, the end of the buckle is engaged in the second slot to lock and fix the anti-detachment plate, further ensuring the stable installation of the first and second clips. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the clamping base structure of this utility model; Figure 3 This is a schematic diagram of the first clip structure of this utility model; Figure 4 This is a schematic diagram of the end cap structure of this utility model; Figure 5 This is a schematic diagram of the anti-detachment plate structure of this utility model; Figure 6 This is a schematic diagram of the structure of the first and second clamping pieces after they are joined together.
[0018] In the diagram: 1. Tensile testing machine body; 2. Lifting plate; 3. Clamping seat; 4. Two-way lead screw; 5. Clamping plate; 6. Guide rod; 7. First clamping piece; 8. Second clamping piece; 9. Gear; 10. Guide plate; 11. Slide rod; 12. End plate; 13. Arc groove; 14. End cover; 15. Gear groove; 16. Limiting plate; 17. First arc protrusion; 18. Mounting hole; 19. Insertion post; 20. Annular groove; 21. Anti-detachment plate; 22. First slot; 23. Buckle; 24. Second slot; 25. Second arc protrusion. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Example: Please see Figure 1 - Figure 6This embodiment of a heat shrink tubing tensile testing machine includes a tensile testing machine body 1, which includes a lifting plate 2. A clamping seat 3 is fixedly connected to the top of the platform of the tensile testing machine body 1 and the bottom of the lifting plate 2. A bidirectional lead screw 4 is rotatably connected inside the clamping seat 3, and a clamping plate 5 is threadedly connected to the outside of the bidirectional lead screw 4. Two clamping plates 5 are provided, with a guide rod 6 fixedly connected to one side of each clamping plate 5. A first clamping piece 7 and a second clamping piece 8 are respectively provided on the other side of each clamping plate 5. An anti-rotation mechanism is provided at the end of the bidirectional lead screw 4. An installation mechanism is provided at the connection between the first clamping piece 7 and the second clamping piece 8 and the clamping plate 5. A second arc-shaped protrusion 25 is fixedly connected to the outside of both the first clamping piece 7 and the second clamping piece 8. The model of the tensile testing machine body 1 can be XL-TST-1. The structure and working principle of this model are existing technologies and will not be described in detail here.
[0021] In use, the two ends of the heat shrink tubing are placed between the first clamping piece 7 and the second clamping piece 8 on the two clamping seats 3. Tightening the double-acting screw 4 causes the first clamping piece 7 and the second clamping piece 8 to move closer together and clamp the heat shrink tubing. The tensile force is tested by the tensile testing machine body 1. After the first clamping piece 7 and the second clamping piece 8 are in contact, the second arc-shaped protrusions 25 on the two clamping pieces are staggered to achieve an interlocking connection. The staggered setting of the second arc-shaped protrusions 25 can also increase the contact area between the heat shrink tubing and the first clamping piece 7 and the second clamping piece 8, resulting in a tighter contact with the heat shrink tubing and ensuring a stable clamping effect.
[0022] Please see Figure 1 - Figure 3 The guide rod 6 slides through and connects to the clamping seat 3, and the top outer wall of the clamping plate 5 is in contact with the inner wall of the clamping seat 3.
[0023] Please see Figure 1 - Figure 4 The anti-rotation mechanism includes a gear 9, a guide plate 10, a slide rod 11, an end plate 12, an arc-shaped groove 13, an end cover 14, a toothed groove 15, a limiting plate 16, and a first arc-shaped protrusion 17. The gear 9 is fixedly connected to one end of the bidirectional lead screw 4. The guide plate 10 is fixedly connected to the outside of the clamping seat 3. The slide rod 11 slides through and connects to the guide plate 10. The end plate 12 is fixedly connected to one end of the slide rod 11. The arc-shaped groove 13 is opened on the outside of the end plate 12. The end cover 14 is fixedly connected to the other end of the slide rod 11. The toothed groove 15 is opened inside the end cover 14. The limiting plate 16 is fixedly connected to the outside of the clamping seat 3. The first arc-shaped protrusion 17 is fixedly connected to the inner surface of the limiting plate 16. The teeth of the gear 9 are high-density, and the specific number of teeth is determined according to actual use.
[0024] After clamping, push the end cover 14 to slide, so that the end cover 14 slides and fits on the outside of the gear 9. At this time, the arc groove 13 disengages from one first arc protrusion 17 and engages with another first arc protrusion 17, so as to achieve the effect of fixing the end cover 14 after sliding. The end cover 14 can achieve the effect of limiting and preventing rotation of the bidirectional lead screw 4, ensuring the stability of the clamping of the heat shrink tubing.
[0025] Please see Figure 1 - Figure 4 There are two first arc-shaped protrusions 17. The first arc-shaped protrusions 17 are engaged inside the arc-shaped groove 13. The inner wall of the arc-shaped groove 13 fits with the outer wall of the first arc-shaped protrusion 17. The inner wall of the tooth groove 15 is adapted to the outer wall of the gear 9. The end cover 14 is slidably sleeved on the outside of the gear 9. The slide rod 11 is a rectangular structure and the limiting plate 16 is an L-shaped structure.
[0026] To facilitate the replacement of the clamping plate 5, the installation mechanism includes a mounting hole 18, a post 19, an annular groove 20, an anti-detachment plate 21, a first slot 22, a buckle 23, and a second slot 24. The mounting hole 18 is located on the outside of the clamping plate 5. The post 19 is fixedly connected to the outside of the first clamping piece 7 and the second clamping piece 8. The annular groove 20 is located on the outside of the post 19. The anti-detachment plate 21 is slidably engaged inside the annular groove 20. The first slot 22 is located on the outside of the anti-detachment plate 21. The buckle 23 is fixedly connected to the inside of the anti-detachment plate 21. The second slot 24 is located on the outside of the clamping plate 5.
[0027] The first clip 7 and the second clip 8 are inserted into the mounting hole 18 via the insert post 19, and then the anti-detachment plate 21 is connected to the insert post 19 via the first slot 22. This achieves the effect of fixing the first clip 7 and the second clip 8, making installation convenient and replacement easy. After the anti-detachment plate 21 is installed, the end of the buckle 23 is engaged inside the second slot 24, achieving the effect of locking and fixing the anti-detachment plate 21, further ensuring the stable installation of the first clip 7 and the second clip 8.
[0028] Please see Figure 5 - Figure 6 The inner wall of the mounting hole 18 fits against the outer wall of the insertion post 19, and the end of the buckle 23 is engaged inside the second slot 24.
[0029] The working principle of the above embodiments is as follows: In use, the two ends of the heat shrink tubing are placed between the first clamping piece 7 and the second clamping piece 8 on the two clamping seats 3. The double-acting screw 4 is turned to bring the first clamping piece 7 and the second clamping piece 8 closer together to clamp the heat shrink tubing. The tensile force is tested by the tensile testing machine body 1. After the first clamping piece 7 and the second clamping piece 8 are in contact, the second arc-shaped protrusions 25 on the two clamping pieces are staggered to achieve a meshing connection. The staggered setting of the second arc-shaped protrusions 25 can also increase the contact area between the heat shrink tubing and the first clamping piece 7 and the second clamping piece 8, and make a tighter contact with the heat shrink tubing to ensure a stable clamping effect. After clamping, push the end cover 14 to slide, so that the end cover 14 slides and fits on the outside of the gear 9. At this time, the arc groove 13 disengages from one first arc protrusion 17 and engages with another first arc protrusion 17, so as to achieve the effect of fixing the end cover 14 after sliding. The end cover 14 can achieve the effect of limiting and preventing the rotation of the bidirectional lead screw 4, ensuring the stability of the clamping of the heat shrink tubing. The first clip 7 and the second clip 8 are inserted into the mounting hole 18 via the insert post 19, and then the anti-detachment plate 21 is connected to the insert post 19 via the first slot 22. This achieves the effect of fixing the first clip 7 and the second clip 8, making installation convenient and replacement easy. After the anti-detachment plate 21 is installed, the end of the buckle 23 is engaged inside the second slot 24, achieving the effect of locking and fixing the anti-detachment plate 21, further ensuring the stable installation of the first clip 7 and the second clip 8.
[0030] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A heat shrink tubing tensile testing machine, characterized in that: The tensile testing machine body (1) includes a lifting plate (2). The top of the table of the tensile testing machine body (1) and the bottom of the lifting plate (2) are fixedly connected to a clamping seat (3). The clamping seat (3) is rotatably connected to a two-way screw (4). The outer side of the two-way screw (4) is threadedly connected to a clamping plate (5). There are two clamping plates (5). One side of the two clamping plates (5) is fixedly connected to a guide rod (6). The other side of the two clamping plates (5) is respectively provided with a first clamping piece (7) and a second clamping piece (8). The end of the two-way screw (4) is provided with an anti-rotation mechanism. The connection between the first clamping piece (7) and the second clamping piece (8) and the clamping plate (5) is provided with an installation mechanism. The outer side of the first clamping piece (7) and the second clamping piece (8) is fixedly connected to a second arc-shaped protrusion (25).
2. The heat shrink tubing tensile testing machine according to claim 1, characterized in that: The guide rod (6) slides through the clamping seat (3), and the top outer wall of the clamping plate (5) is in contact with the inner wall of the clamping seat (3).
3. The heat shrink tubing tensile testing machine according to claim 2, characterized in that: The anti-rotation mechanism includes a gear (9), a guide plate (10), a slide rod (11), an end plate (12), an arc groove (13), an end cover (14), a tooth groove (15), a limiting plate (16), and a first arc protrusion (17). The gear (9) is fixedly connected to one end of the bidirectional lead screw (4). The guide plate (10) is fixedly connected to the outside of the clamping seat (3). The slide rod (11) slides through the guide plate (10). The end plate (12) is fixedly connected to one end of the slide rod (11). The arc groove (13) is opened on the outside of the end plate (12). The end cover (14) is fixedly connected to the other end of the slide rod (11). The tooth groove (15) is opened inside the end cover (14). The limiting plate (16) is fixedly connected to the outside of the clamping seat (3). The first arc protrusion (17) is fixedly connected to the inner surface of the limiting plate (16).
4. The heat shrink tubing tensile testing machine according to claim 3, characterized in that: There are two first arc-shaped protrusions (17). The first arc-shaped protrusions (17) are engaged inside the arc-shaped groove (13). The inner wall of the arc-shaped groove (13) is in contact with the outer wall of the first arc-shaped protrusions (17).
5. A heat shrink tubing tensile testing machine according to claim 3, characterized in that: The inner wall of the tooth groove (15) is adapted to the outer wall of the gear (9), and the end cover (14) is slidably sleeved on the outside of the gear (9).
6. The heat shrink tubing tensile testing machine according to claim 3, characterized in that: The slide bar (11) is rectangular in shape, and the limiting plate (16) is L-shaped.
7. The heat shrink tubing tensile testing machine according to claim 1, characterized in that: The installation mechanism includes an installation hole (18), a pin (19), an annular groove (20), an anti-detachment plate (21), a first slot (22), a buckle (23), and a second slot (24). The installation hole (18) is located on the outside of the clamping plate (5). The pin (19) is fixedly connected to the outside of the first clamping piece (7) and the second clamping piece (8). The annular groove (20) is located on the outside of the pin (19). The anti-detachment plate (21) is slidably engaged inside the annular groove (20). The first slot (22) is located on the outside of the anti-detachment plate (21). The buckle (23) is fixedly connected inside the anti-detachment plate (21). The second slot (24) is located on the outside of the clamping plate (5).
8. The heat shrink tubing tensile testing machine according to claim 7, characterized in that: The inner wall of the mounting hole (18) fits against the outer wall of the insert (19), and the end of the buckle (23) is engaged inside the second slot (24).