Tensile testing device for plastic buckle
By designing adjustable slide rails and fixing devices, the problem of traditional testing machines being unable to adapt to plastic fasteners of different sizes has been solved, enabling reliability testing of plastic fasteners of different sizes and heights.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN JINXI PLASTIC CO LTD
- Filing Date
- 2025-03-14
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional tensile strength testing machines have difficulty quickly fixing and testing plastic fasteners of different sizes, resulting in unreliable test data.
A testing device was designed, comprising a slide rail, a slide groove, a bidirectional lead screw, an internally threaded slider, a fixed rod, and a tension gauge. By adjusting the positions of the slider and the fixed rod, it can accommodate plastic fasteners of different sizes. Through the cooperation of the lifting assembly and the tension gauge, it can achieve horizontal tension testing of fasteners of different heights.
It enables rapid adaptability fixing and reliability testing of plastic fasteners of different sizes and heights, ensuring the accuracy of test data.
Smart Images
Figure CN224137064U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tensile strength testing technology for plastic fasteners, specifically to a tensile strength testing device for plastic fasteners. Background Technology
[0002] To ensure the production quality of plastic fasteners, tensile strength testing is required after production. However, there are many types of plastic fasteners on the market, resulting in different sizes. This makes it difficult for traditional tensile strength testing machines to quickly fix and test plastic fasteners of different sizes. To address this issue, technological innovation is carried out based on existing plastic fastener tensile strength testing devices. Utility Model Content
[0003] The purpose of this invention is to provide a device for testing the tensile strength of plastic fasteners, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a plastic fastener tensile strength testing device, comprising:
[0005] A first slide rail and a second slide rail, the first slide rail being located to the left of the second slide rail. Both the first and second slide rails have a set of grooves at their tops. A support sleeve is installed within each groove, and a bidirectional lead screw is rotatably mounted within the support sleeve. The front side of the bidirectional lead screw passes through the groove and is connected to a handwheel. Two sets of internally threaded sliders are evenly screwed onto the outer wall of the bidirectional lead screw, and these two sets of internally threaded sliders are evenly slidably mounted within the groove. A first fixing rod and a second fixing rod are respectively installed at the top of the internally threaded sliders and the support sleeve. A vertical plate is installed on the top right side of the second slide rail. A first convex groove is evenly provided on the right side of the vertical plate and the second slide rail. A first protrusion is installed within the first convex groove. A pull plate is installed to the right of the first protrusion. A connecting rod is installed to the right of the pull plate. A tension gauge is installed to the right of the connecting rod. A second hydraulic rod is installed to the right of the tension gauge. A lifting assembly is placed at the bottom of the second hydraulic rod. A fixing assembly is placed to the left side of the vertical plate.
[0006] Preferably, the lifting assembly includes a first hydraulic rod, the top of the telescopic end of the first hydraulic rod is provided with a connecting plate, the top of the connecting plate is evenly provided with two sets of square columns, and the square columns are provided at the bottom of the second hydraulic rod.
[0007] Preferably, the fixing component includes a pressure frame, a third protrusion is evenly arranged on the right side of the pressure frame, and two sets of through holes are evenly opened through the top of the pressure frame. A screw is arranged in the through hole, and a nut is screwed to the outer wall of the screw. The nut is located at the top of the pressure frame.
[0008] Preferably, a second convex groove is evenly provided on the left side of the vertical plate, the third protrusion is disposed in the second convex groove, the first fixing rod and the second fixing rod located above the second slide rail are both slidably disposed in the pressure frame, the first convex groove passes through the upper and lower sides of the vertical plate and the second slide rail, the second convex groove passes through the top of the vertical plate, and the two sets of screws are evenly disposed on the top of the second slide rail.
[0009] Preferably, the bottom of the first slide rail is provided with a slide table, and the top right side of the slide table is evenly provided with two sets of third convex grooves. The bottom of the second slide rail is evenly provided with two sets of second protrusions, and the second protrusions are disposed in the third convex grooves. The bottom of the slide table is provided with a support frame, and the top right side of the support frame is evenly provided with two sets of square grooves. The first hydraulic rod is disposed at the bottom of the inner side wall of the support frame, and the second hydraulic rod is located at the top right side of the support frame. The top of the square column is connected to the second hydraulic rod through the square groove.
[0010] Preferably, a female buckle and a male buckle are placed above the slide table. The male buckle is engaged in the buckle groove of the female buckle. A first fixing rod and a second fixing rod located above the first slide rail are inserted into the strap groove of the female buckle. A first fixing rod and a second fixing rod located above the second slide rail are inserted into the strap groove of the male buckle. The pressure frame is located on top of the male buckle.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] This invention allows for component adjustment to accommodate different plastic fastener lengths, widths, and heights, enabling the device to quickly adapt to plastic fasteners of varying sizes and thus improving its adaptability. Furthermore, when dealing with plastic fasteners of different heights, the height of the tension gauge can be adjusted, allowing the device to apply horizontal tension to plastic fasteners of varying heights, thereby ensuring the reliability of the test data. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the tensile strength testing device for plastic fasteners according to this utility model;
[0014] Figure 2 This utility model Figure 1 Enlarged view of part A;
[0015] Figure 3 This is a front sectional view of the plastic buckle tensile strength testing device of this utility model;
[0016] Figure 4 This is a partial sectional view of the top of the plastic buckle tensile strength testing device of this utility model;
[0017] Figure 5This is a partial sectional view of the second top of the plastic buckle tensile strength testing device of this utility model.
[0018] In the diagram: 1. Support frame; 11. First hydraulic rod; 12. Connecting plate; 13. Square column; 14. Second hydraulic rod; 15. Force gauge; 16. Connecting rod; 17. Pull plate; 18. First protrusion; 2. Slide table; 21. First slide rail; 211. Second slide rail; 212. Second protrusion; 213. Vertical plate; 214. Nut; 215. Screw; 216. Pressure frame; 217. Third protrusion; 22. Handwheel; 23. Internal threaded slider; 231. First fixing rod; 24. Support sleeve; 241. Second fixing rod; 25. Double-acting screw; 3. Female thread; 31. Male thread. 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] Please see Figures 1-5A plastic fastener tensile strength testing device includes a first slide rail 21 and a second slide rail 211. The first slide rail 21 is located to the left of the second slide rail 211. A set of grooves is provided on the top of both the first and second slide rails 211. A support sleeve 24 is fixedly installed in the groove. A bidirectional screw 25 is rotatably installed inside the support sleeve 24. The front side of the bidirectional screw 25 passes through the groove and is connected to a handwheel 22. Two sets of internally threaded sliders 23 are evenly screwed onto the outer wall of the bidirectional screw 25. The two sets of internally threaded sliders 23 are evenly slidably installed in the groove. A first fixing rod 231 and a second fixing rod 241 are fixedly installed on the top of the internally threaded sliders 23 and the support sleeve 24, respectively. Rotating the handwheel 22 drives the bidirectional screw 25 to rotate, which in turn drives the two sets of internally threaded sliders 23 to move outward synchronously, thereby driving the internally threaded sliders 23 to move outward. The first fixed rod 231 at the top of the threaded slider 23 moves. A vertical plate 213 is fixedly installed on the top right side of the second slide rail 211. The vertical plate 213 and the right side of the second slide rail 211 are evenly provided with first convex grooves. A first protrusion 18 is slidably installed in the first convex groove. A pull plate 17 is fixedly installed on the right side of the first protrusion 18. A connecting rod 16 is fixedly installed on the right side of the pull plate 17. A tension gauge 15 is fixedly installed on the right side of the connecting rod 16. A second hydraulic rod 14 is fixedly installed on the right side of the tension gauge 15. The tension gauge 15 is pulled to the right by the second hydraulic rod 14. The tension gauge 15 drives the vertical plate 213 and the second slide rail 211 to the right through the connecting rod 16, the pull plate 17 and the first protrusion 18. A lifting component is installed at the bottom of the second hydraulic rod 14. A fixing component is installed on the left side of the vertical plate 213.
[0021] The lifting assembly includes a first hydraulic rod 11. A connecting plate 12 is fixedly installed at the top of the telescopic end of the first hydraulic rod 11. Two sets of square columns 13 are evenly fixedly installed at the top of the connecting plate 12. The square columns 13 are fixedly installed at the bottom of the second hydraulic rod 14. The connecting plate 12 is driven to move downward by the first hydraulic rod 11, and the connecting plate 12 drives the second hydraulic rod 14 to move downward by the square columns 13. The fixing assembly includes a pressure frame 216. A third protrusion 217 is evenly fixedly installed on the right side of the pressure frame 216. Two sets of through holes are evenly opened through the top of the pressure frame 216. A screw 215 is rotatably installed in the through holes. A nut 214 is screwed to the outer wall of the screw 215. The nut 214 is located at the top of the pressure frame 216. A second convex groove is evenly opened on the left side of the vertical plate 213. The third protrusion 217 is slidably installed in the second convex groove. A first fixing rod 231 and a second fixing rod 217 are located above the second slide rail 211. 41 are slidably set in the pressure frame 216. The first convex groove passes through the upper and lower sides of the vertical plate 213 and the second slide rail 211. The second convex groove passes through the top of the vertical plate 213. Two sets of screws 215 are evenly fixedly set in the top of the second slide rail 211. A slide table 2 is fixedly set at the bottom of the first slide rail 21. Two sets of third convex grooves are evenly opened on the top right side of the slide table 2. Two sets of second protrusions 212 are evenly fixedly set at the bottom of the second slide rail 211. The second protrusions 212 are slidably set in the third convex grooves. The second protrusions 212 assist the second slide rail 211 to move left and right stably. A support frame 1 is fixedly set at the bottom of the slide table 2. Two sets of square grooves are evenly opened through the top right side of the support frame 1. The first hydraulic rod 11 is fixedly set at the bottom of the inner side wall of the support frame 1. The second hydraulic rod 14 is located on the top right side of the support frame 1. The top of the square column 13 passes through the square groove and is connected to the second hydraulic rod 14.
[0022] A female buckle 3 and a male buckle 31 are placed above the slide table 2. The male buckle 31 is snapped into the buckle groove of the female buckle 3. The first fixing rod 231 and the second fixing rod 241, located above the first slide rail 21, are inserted into the strap groove of the female buckle 3. The first fixing rod 231 and the second fixing rod 241, located above the second slide rail 211, are inserted into the strap groove of the male buckle 31. The pressure frame 216 is located on top of the male buckle 31.
[0023] Working principle: After the male buckle 31 is fastened into the female buckle 3, the tension gauge 15 is moved left and right by the second hydraulic rod 14 according to the distance between the strap grooves of the male buckle 31 and the female buckle 3. The tension gauge 15 drives the vertical plate 213 and the second slide rail 211 to move left and right through the connecting rod 16, the pull plate 17 and the first protrusion 18. This makes the first fixing rod 231 and the second fixing rod 241 on the first slide rail 21 and the second slide rail 211 aligned with the strap grooves of the female buckle 3 and the male buckle 31. Then, the first fixing rod 231 and the second fixing rod 241 on the first slide rail 21 are inserted into the strap groove of the female buckle 3, and the first fixing rod 231 and the second fixing rod 241 on the second slide rail 211 are inserted into the strap groove of the male buckle 31. In this way, the device can adapt to plastic buckles of different lengths.
[0024] Based on the width of the strap grooves of the female buckle 3 and the male buckle 31, by rotating the handwheel 22 on the outer side of the first slide rail 21 and the second slide rail 211, the handwheel 22 drives the bidirectional lead screw 25 to rotate, and the bidirectional lead screw 25 drives the two sets of internal thread sliders 23 to move inward or outward synchronously, and the internal thread sliders 23 drive the first fixed rod 231 to move synchronously, so that the first fixed rod 231 and the second fixed rod 241 are evenly distributed in the strap groove, so that the device can adapt to plastic buckles of different widths.
[0025] The pressure frame 216 is fitted onto the outside of the first fixing rod 231 and the second fixing rod 241 on the second slide rail 211, and the pressure frame 216 is positioned above the male buckle 31. After screwing the nut 214 and the screw rod 215 together, the nut 214 can stably fix the pressure frame 216 above the male buckle 31, thereby fixing the male buckle 31. The pressure frame 216 can move up and down on the outside of the vertical plate 213 via the third protrusion 217, so that the device can adapt to plastic buckles of different heights. When dealing with plastic buckles of different heights, the first hydraulic pressure is used to... Rod 11 drives connecting plate 12 to move up and down. Connecting plate 12 drives second hydraulic rod 14 to move up and down via square column 13. In turn, second hydraulic rod 14 drives tension gauge 15, connecting rod 16 and pull plate 17 to move up and down, thereby aligning second hydraulic rod 14 and tension gauge 15 with plastic fastener. This allows plastic fastener to be subjected to horizontal tension. Second hydraulic rod 14 pulls tension gauge 15 to the right, and tension gauge 15 pulls male buckle 31 fixed on second slide rail 211 to the right to perform tensile strength test.
Claims
1. A device for testing the tensile resistance of a plastic fastener, characterized in that, include: The first slide rail (21) and the second slide rail (211) are located to the left of the second slide rail (211). A set of sliding grooves is provided on the top of both the first slide rail (21) and the second slide rail (211). A support sleeve (24) is provided in the sliding groove. A bidirectional lead screw (25) is rotatably provided in the support sleeve (24). The front side of the bidirectional lead screw (25) passes through the sliding groove and is connected to a handwheel (22). Two sets of internal thread sliders (23) are evenly screwed onto the outer wall of the bidirectional lead screw (25). The two sets of internal thread sliders (23) are evenly slidably arranged in the sliding groove. A first fixing rod is provided on the top of the internal thread slider (23) and the support sleeve (24). (231) and the second fixed rod (241), a vertical plate (213) is provided on the top right side of the second slide rail (211), a first convex groove is evenly provided on the right side of the vertical plate (213) and the second slide rail (211), a first protrusion (18) is provided in the first convex groove, a pull plate (17) is provided on the right side of the first protrusion (18), a connecting rod (16) is provided on the right side of the pull plate (17), a tension gauge (15) is provided on the right side of the connecting rod (16), a second hydraulic rod (14) is provided on the right side of the tension gauge (15), a lifting component is placed at the bottom of the second hydraulic rod (14), and a fixing component is placed on the left side of the vertical plate (213).
2. The plastic fastener tensile resistance testing device according to claim 1, characterized by: The lifting assembly includes a first hydraulic rod (11), and a connecting plate (12) is provided at the top of the telescopic end of the first hydraulic rod (11). Two sets of square columns (13) are evenly arranged on the top of the connecting plate (12), and the square columns (13) are located at the bottom of the second hydraulic rod (14).
3. The plastic fastener tensile resistance testing device according to claim 2, wherein: The fixing component includes a pressure frame (216), a third protrusion (217) is evenly arranged on the right side of the pressure frame (216), and two sets of through holes are evenly opened on the top of the pressure frame (216). A screw (215) is arranged in the through hole, and a nut (214) is screwed to the outer wall of the screw (215). The nut (214) is located on the top of the pressure frame (216).
4. The plastic fastener tensile resistance test device according to claim 3, characterized by: The left side of the vertical plate (213) is uniformly provided with a second convex groove, the third protrusion (217) is disposed in the second convex groove, the first fixing rod (231) and the second fixing rod (241) located above the second slide rail (211) are both slidably disposed in the pressure frame (216), the first convex groove penetrates the upper and lower sides of the vertical plate (213) and the second slide rail (211), the second convex groove penetrates the top of the vertical plate (213), and the two sets of screws (215) are uniformly disposed on the top of the second slide rail (211).
5. The plastic fastener tensile resistance testing device according to claim 4, wherein: The bottom of the first slide rail (21) is provided with a slide table (2), and two sets of third convex grooves are evenly opened on the top right side of the slide table (2). The bottom of the second slide rail (211) is evenly provided with two sets of second protrusions (212), and the second protrusions (212) are located in the third convex grooves. The bottom of the slide table (2) is provided with a support frame (1), and two sets of square grooves are evenly opened through the top right side of the support frame (1). The first hydraulic rod (11) is located at the bottom of the inner side wall of the support frame (1), and the second hydraulic rod (14) is located at the top right side of the support frame (1). The top of the square column (13) is connected to the second hydraulic rod (14) through the square groove.
6. The plastic fastener tensile resistance testing device according to claim 5, wherein: A female buckle (3) and a male buckle (31) are placed above the slide table (2). The male buckle (31) is engaged in the buckle groove of the female buckle (3). The first fixing rod (231) and the second fixing rod (241) located above the first slide rail (21) are inserted into the strap groove of the female buckle (3). The first fixing rod (231) and the second fixing rod (241) located above the second slide rail (211) are inserted into the strap groove of the male buckle (31). The pressure frame (216) is located on top of the male buckle (31).