A connector dynamic bending fatigue testing device
By using a servo motor to drive a disc and gear system to make the wire move in a circular motion, and using an elastic inclined ring and triangular retainer to clamp and fix it, the problem of uneven force on the wire in traditional testing devices is solved, thus improving the testing accuracy and the wire fixing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HAIPUTE ELECTRONICS CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional connector dynamic bending fatigue testing devices experience uneven stress during wire bending, affecting the accuracy of test results and accelerating wire wear.
A servo motor drives a disc to move a circular block and a gear system, causing the wire to move in a circular motion around the axis. The wire is then evenly clamped and fixed by an elastic inclined ring and a triangular retainer.
This ensures uniform stress on the wires, improves the accuracy and fixation of test results, prevents wires from loosening, and ensures the reliability of the testing process.
Smart Images

Figure CN224581278U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, and more specifically, to a connector dynamic bending fatigue testing device. Background Technology
[0002] Connectors are indispensable electronic components in modern electronic devices, used to transmit electrical signals or power between circuit units without the need for permanent connections; the connector dynamic bending fatigue test device is a professional device used to evaluate the durability and reliability of connectors under repeated bending conditions.
[0003] Traditional connector dynamic bending fatigue testing devices have the following shortcomings: In typical testing, one end of the wire is fixed, and the device is moved up and down to repeatedly bend the wire. However, this method often results in uneven stress on the wire during bending. Because the fixed point remains constant, the movement trajectory and speed of the moving end may not be perfectly consistent, causing different parts of the wire to experience varying tensile and compressive forces during bending, thus affecting the accuracy of the test results. Furthermore, this uneven stress may accelerate localized wear on the wire, causing it to fail before reaching the predetermined number of bends. Therefore, improvements are needed. Utility Model Content
[0004] To overcome the shortcomings of the existing technology, this utility model provides a connector dynamic bending fatigue testing device, which has the advantage of being easy to use.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a connector dynamic bending fatigue testing device, comprising a base, a side plate fixedly installed on the top of the base, a disc rotatably installed inside the side plate, a circular block fixedly installed on the outer side of the disc, a rectangular plate movably installed on the outer side of the circular block, a toothed plate fixedly installed on the outer side of the rectangular plate, an mounting plate fixedly installed on the top of the base, a rotating shaft two rotatably installed on the inner side of the mounting plate, a vertical plate fixedly installed on the outer side of the rotating shaft two, and a gear fixedly installed on the rear side of the vertical plate, the gear meshing with the toothed plate.
[0006] As a preferred embodiment of this utility model, a square block is fixedly installed on the outer side of the vertical plate, an outer ring block is fixedly installed on the outer side of the square block, a bottom ring block is fixedly installed on the inner side of the bottom of the outer ring block, a connecting block is evenly fixedly installed on the top of the bottom ring block, an elastic inclined ring is fixedly installed on the top of the connecting block, a threaded ring located above the elastic inclined ring is movably installed inside the outer ring block, and a triangular retaining ring is fixedly installed below the threaded ring, with the inner inclined surface of the triangular retaining ring corresponding to the outer inclined surface of the elastic inclined ring.
[0007] As a preferred embodiment of this utility model, a limiting groove is provided on the rear side of the vertical plate, and a limiting block located inside the limiting groove is fixedly installed on the outer side of the toothed plate.
[0008] As a preferred embodiment of this utility model, a servo motor is fixedly installed inside the side plate, a rotating shaft is fixedly installed outside the servo motor, and the disc is fixedly connected to the outside of the rotating shaft.
[0009] As a preferred embodiment of this utility model, an insertion port is provided on the top of the base, and a connector socket is fixedly installed inside the insertion port.
[0010] As a preferred embodiment of this utility model, a knob is fixedly installed on the outer side of the threaded ring, and the knob is located on the outer side of the threaded ring.
[0011] As a preferred embodiment of this utility model, a threaded groove is provided on the inner side of the outer ring block, and the threaded groove corresponds to the threaded ring.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses a servo motor to drive a disc to rotate a block in a circular motion. Under the control of the limiting block, the disc rotates the gear left and right, which in turn rotates the vertical plate left and right. This causes the wire to rotate around the second rotating shaft, thus achieving uniform force distribution. Compared with traditional connector dynamic bending fatigue testing devices, this connector dynamic bending fatigue testing device achieves uniform force distribution by causing the wire to rotate around the second rotating shaft, improving the accuracy of the test results and making it easier to use.
[0013] 2. This utility model inserts the wire into the inner ring block and rotates the knob to cause the triangular retaining ring to press against the outer wall of the elastic inclined ring, pushing the elastic inclined ring inward to clamp and fix the wire. Compared with the traditional connector dynamic bending fatigue testing device, this connector dynamic bending fatigue testing device uses the elastic inclined ring to clamp and fix the wire, thereby improving the fixing effect and preventing the wire from loosening during the test and affecting the test results. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a vertical cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the vertical plate of this utility model; Figure 4 This is a schematic diagram of the disc of this utility model; Figure 5This is an exploded view of the knob and outer ring block of this utility model.
[0015] In the diagram: 1. Base; 2. Side plate; 3. Servo motor; 4. Rotating shaft one; 5. Disc; 6. Circular block; 7. Rectangular plate; 8. Toothed plate; 9. Limiting block; 10. Mounting plate; 11. Rotating shaft two; 12. Vertical plate; 13. Gear; 14. Limiting groove; 15. Square block; 16. Outer ring block; 17. Bottom ring block; 18. Connecting block; 19. Elastic inclined ring; 20. Screw groove; 21. Threaded ring; 22. Triangular retaining ring; 23. Knob; 24. Socket; 25. Connector socket. Detailed Implementation
[0016] 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.
[0017] like Figures 1 to 5 As shown, this utility model provides a connector dynamic bending fatigue testing device, including a base 1, a side plate 2 fixedly installed on the top of the base 1, a disc 5 rotatably installed inside the side plate 2, a circular block 6 fixedly installed on the outside of the disc 5, a rectangular plate 7 movably installed on the outside of the circular block 6, a toothed plate 8 fixedly installed on the outside of the rectangular plate 7, a mounting plate 10 fixedly installed on the top of the base 1, a rotating shaft 11 rotatably installed on the inside of the mounting plate 10, a vertical plate 12 fixedly installed on the outside of the rotating shaft 11, and a gear 13 fixedly installed on the rear side of the vertical plate 12, the gear 13 meshing with the toothed plate 8.
[0018] Insert the connector into the socket 24, and then fix the wire inside the outer ring block 16. At this time, start the servo motor 3, so that the servo motor 3 drives the rotating shaft 4 to rotate, the rotating shaft 4 drives the disc 5 to rotate, the disc 5 drives the circular block 6 to make a circular motion, the circular block 6 drives the rectangular plate 7 to move left and right, the rectangular plate 7 drives the toothed plate 8 to move left and right, and under the limit of the limit block 9, drives the gear 13 to rotate left and right, thereby driving the vertical plate 12 to rotate left and right, so that the wire makes a circular motion around the rotating shaft 11, thus achieving the effect of uniform force distribution.
[0019] By activating the servo motor 3, the disc 5 drives the circular block 6 to perform circular motion. Under the limit of the limit block 9, the gear 13 rotates left and right, thereby driving the vertical plate 12 to rotate left and right. This causes the wire to perform circular motion around the rotating shaft 11, thus achieving the effect of uniform force distribution. Compared with traditional connector dynamic bending fatigue testing devices, this connector dynamic bending fatigue testing device achieves the effect of uniform force distribution by making the wire perform circular motion around the rotating shaft 11, improving the accuracy of the test results and making it easier to use.
[0020] Among them, a block 15 is fixedly installed on the outer side of the vertical plate 12, an outer ring block 16 is fixedly installed on the outer side of the block 15, a bottom ring block 17 is fixedly installed on the inner side of the bottom of the outer ring block 16, a connecting block 18 is evenly fixedly installed on the top of the bottom ring block 17, an elastic inclined ring 19 is fixedly installed on the top of the connecting block 18, a threaded ring 21 located above the elastic inclined ring 19 is movably installed inside the outer ring block 16, a triangular retaining ring 22 is fixedly installed below the threaded ring 21, and the inner inclined surface of the triangular retaining ring 22 corresponds to the outer inclined surface of the elastic inclined ring 19.
[0021] After inserting the wire into the outer ring block 16, rotate the knob 23 to make the threaded ring 21 rotate. The rotation of the threaded ring 21 inside the threaded groove 20 causes the triangular retaining ring 22 to move downward, so that the triangular retaining ring 22 presses against the outer wall of the elastic inclined ring 19. Since the outer side of the elastic inclined ring 19 is inclined, when the triangular retaining ring 22 moves downward, it will push the elastic inclined ring 19 inward to clamp and fix the wire, thereby preventing the wire from loosening during the test and affecting the test results.
[0022] After inserting the wire into the outer ring block 16, rotating the knob 23 causes the triangular retaining ring 22 to press against the outer wall of the elastic inclined ring 19, pushing the elastic inclined ring 19 inward to clamp and fix the wire. Compared with the traditional connector dynamic bending fatigue testing device, this connector dynamic bending fatigue testing device uses the elastic inclined ring 19 to clamp and fix the wire, thereby improving the fixing effect and preventing the wire from loosening during the test and affecting the test results.
[0023] Among them, a limiting groove 14 is opened on the rear side of the vertical plate 12, and a limiting block 9 located inside the limiting groove 14 is fixedly installed on the outer side of the toothed plate 8.
[0024] The rectangular plate 7 drives the toothed plate 8 to move left and right, causing the limiting block 9 to move left and right inside the limiting groove 14, thereby limiting the toothed plate 8.
[0025] The side plate 2 has a servo motor 3 fixedly installed inside, and a rotating shaft 4 fixedly installed on the outside of the servo motor 3. The disc 5 is fixedly connected to the outside of the rotating shaft 4.
[0026] Start the servo motor 3, which drives the rotating shaft 4 to rotate. The rotating shaft 4 drives the disc 5 to rotate, thereby driving the circular block 6 to perform circular motion.
[0027] The base 1 has an opening 24 on its upper part, and a connector socket 25 is fixedly installed inside the opening 24.
[0028] By inserting the connector plug into the connector socket 25, it is easy to detect the bending of the wire.
[0029] A knob 23 is fixedly installed on the outer side of the threaded ring 21, and the knob 23 is located on the outer side of the threaded ring 21.
[0030] Rotate knob 23 to make knob 23 drive threaded ring 21 to rotate inside thread groove 20, thereby driving threaded ring 21 to move downward.
[0031] The outer ring block 16 has a threaded groove 20 on its inner side, which corresponds to the threaded ring 21.
[0032] The rotation of the threaded ring 21 inside the threaded groove 20 drives the triangular retaining ring 22 to move up and down, thereby fixing and releasing the wire.
[0033] Working principle and usage process of this utility model: Insert the connector into the socket 24, and then fix the wire inside the outer ring block 16. At this time, start the servo motor 3, so that the servo motor 3 drives the rotating shaft 4 to rotate, the rotating shaft 4 drives the disc 5 to rotate, the disc 5 drives the circular block 6 to make a circular motion, the circular block 6 drives the rectangular plate 7 to move left and right, the rectangular plate 7 drives the toothed plate 8 to move left and right, and under the limit of the limit block 9, drives the gear 13 to rotate left and right, thereby driving the vertical plate 12 to rotate left and right, so that the wire makes a circular motion around the rotating shaft 11, thus achieving the effect of uniform force distribution.
[0034] After inserting the wire into the outer ring block 16, rotate the knob 23 to make the threaded ring 21 rotate. The rotation of the threaded ring 21 inside the threaded groove 20 causes the triangular retaining ring 22 to move downward, so that the triangular retaining ring 22 presses against the outer wall of the elastic inclined ring 19. Since the outer side of the elastic inclined ring 19 is inclined, when the triangular retaining ring 22 moves downward, it will push the elastic inclined ring 19 inward to clamp and fix the wire, thereby preventing the wire from loosening during the test and affecting the test results.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0036] 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 connector dynamic bending fatigue test device, comprising a base (1), characterized in that: A side plate (2) is fixedly installed on the top of the base (1). A disc (5) is rotatably installed inside the side plate (2). A round block (6) is fixedly installed on the outside of the disc (5). A rectangular plate (7) is movably installed on the outside of the round block (6). A toothed plate (8) is fixedly installed on the outside of the rectangular plate (7). An mounting plate (10) is fixedly installed on the top of the base (1). A rotating shaft (11) is rotatably installed on the inside of the mounting plate (10). A vertical plate (12) is fixedly installed on the outside of the rotating shaft (11). A gear (13) is fixedly installed on the rear side of the vertical plate (12). The gear (13) meshes with the toothed plate (8).
2. The connector dynamic bending fatigue testing device of claim 1, wherein: A block (15) is fixedly installed on the outer side of the vertical plate (12). An outer ring block (16) is fixedly installed on the outer side of the block (15). A bottom ring block (17) is fixedly installed on the inner side of the bottom of the outer ring block (16). A connecting block (18) is evenly fixedly installed on the top of the bottom ring block (17). An elastic inclined ring (19) is fixedly installed on the top of the connecting block (18). A threaded ring (21) located above the elastic inclined ring (19) is movably installed inside the outer ring block (16). A triangular retaining ring (22) is fixedly installed below the threaded ring (21). The inner inclined surface of the triangular retaining ring (22) corresponds to the outer inclined surface of the elastic inclined ring (19).
3. The connector dynamic bending fatigue testing device of claim 1, wherein: A limiting groove (14) is provided on the rear side of the vertical plate (12), and a limiting block (9) located inside the limiting groove (14) is fixedly installed on the outer side of the toothed plate (8).
4. The connector dynamic bending fatigue testing apparatus of claim 1, wherein: A servo motor (3) is fixedly installed inside the side plate (2), and a rotating shaft (4) is fixedly installed on the outside of the servo motor (3). The disc (5) is fixedly connected to the outside of the rotating shaft (4).
5. The connector dynamic bending fatigue testing apparatus of claim 1, wherein: The base (1) has an opening (24) on its upper part, and a connector socket (25) is fixedly installed inside the opening (24).
6. The connector dynamic bending fatigue testing apparatus of claim 2, wherein: A knob (23) is fixedly installed on the outside of the threaded ring (21), and the knob (23) is located on the outside of the threaded ring (21).
7. The connector dynamic bending fatigue testing apparatus of claim 2, wherein: The inner side of the outer ring block (16) is provided with a threaded groove (20), which corresponds to the threaded ring (21).