Angle-adjustable tool for earphone cable bending test

Abstract

The utility model belongs to the field of testing tools, and particularly relates to an angle-adjustable tool for an earphone cable bending test, which comprises a frame, clamping mechanisms are arranged on the left side and the right side of the frame, a cylinder is fixedly mounted at the top of the frame, and a telescopic shaft of the cylinder penetrates through the frame and is in sliding connection with the frame. The tail end of the telescopic shaft is fixedly connected with a connecting plate, the side edge of the connecting plate is fixedly connected with a guide frame, and the guide frame penetrates through the frame and is in sliding connection with the frame. According to the utility model, the frame is arranged, the two clamping mechanisms are arranged on the inner wall of the frame, and after an earphone cable passes through the hollow sleeves in the clamping mechanisms, the internal thread sleeves can apply thrust to the sliding pins by rotating the internal thread sleeves, so that the clamping blocks at the tail ends of the sliding pins move synchronously; the clamping blocks are used for clamping and fixing the earphone cable together, and the adjustability of the sliding pins and the clamping blocks is utilized, so that the earphone cable fixing device is suitable for earphone cables with different diameters.

Description

Technical Field

[0001] This utility model relates to the field of testing fixture technology, specifically an adjustable angle fixture for testing the bending of headphone cables. Background Technology

[0002] Headphone cables have become a very common portable accessory in people's lives. In order to ensure the quality of headphone cables, there are more and more testing devices. Among them, the bending test device is a mechanical force test device used to test the mechanical properties of metallic and non-metallic materials such as tension, compression, bending, shearing and peeling.

[0003] A search revealed that the invention patent with publication number CN112904121A discloses a test fixture for headphone jack cables. The test fixture includes a connector interface and a test motherboard. The connector interface is connected to one end of the headphone jack link connector of the headphone jack cable, and the other end is provided with a test motherboard for testing various test signals of the headphone jack connector. The power supply U1 on the test motherboard is connected to a voltage switch SW1.

[0004] However, existing headphone cable bending test fixtures only apply force to headphone cables in a single direction, which differs significantly from the bending patterns experienced by headphone cables in real-world situations, resulting in inaccurate test results. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable angle fixture for testing the bending of headphone cables. This solves the problem that existing headphone cable bending test fixtures have a relatively singular force direction on the headphone cable, which differs significantly from the bending patterns experienced by headphone cables in real-world situations, leading to inaccurate test results.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable angle fixture for testing the bending of headphone cables, comprising a frame, clamping mechanisms on both the left and right sides of the frame, a cylinder fixedly mounted on the top of the frame, the telescopic shaft of the cylinder passing through the frame and slidably connected to the frame, a connecting plate fixedly connected to the end of the telescopic shaft, a guide frame fixedly connected to the side of the connecting plate, the guide frame passing through the frame and slidably connected to the frame, a fixed shaft fixedly connected to the bottom of the connecting plate, a bushing connected to the outer side of the fixed shaft via a bearing, a hollow disc fixedly connected to the end of the bushing, a locking disc fixedly connected to the fixed shaft, a locking pin slidably connected inside the bushing, the locking pin being inserted into the locking disc, and a spring provided inside the bushing.

[0007] Preferably, one end of the first spring is fixedly connected to the locking pin, and the other end of the first spring is fixedly connected to the inner surface of the bushing. By providing the first spring, the elastic force can be applied to the locking pin.

[0008] Preferably, a lever is fixedly connected to the pin body of the locking pin, and the lever is slidably connected to the bushing. The lever facilitates the pulling of the locking pin.

[0009] Preferably, the clamping mechanism includes a fixing frame fixedly connected to the inner wall of the frame. A hollow sleeve is fixedly connected to the end of the fixing frame. An internally threaded sleeve is threadedly connected to the outer side of the hollow sleeve. A sliding pin is slidably connected inside the hollow sleeve, and the sliding pin passes through the hollow sleeve. One end of the sliding pin abuts against the internally threaded sleeve, and the other end of the sliding pin is fixedly connected to a clamping block. This clamping mechanism facilitates the clamping and fixing of headphone cables and is suitable for headphone cables of different diameters.

[0010] Preferably, a retaining ring is fixedly connected to the pin body of the sliding pin, and a second spring is sleeved on the outer side of the pin body. One end of the second spring is fixedly connected to the retaining ring, and the other end of the second spring is fixedly connected to the inner wall of the hollow sleeve. The elastic force of the second spring can act on the sliding pin through the retaining ring, thus assisting in the pin's reset function.

[0011] Preferably, a guide rod is fixedly connected to the inner wall of the hollow sleeve, the guide rod passing through the retaining ring and slidably connected to the retaining ring. Through the arrangement of the guide rod and its cooperation with the retaining ring, it guides the sliding movement of the sliding pin under force.

[0012] Preferably, the side wall of the frame has a through-hole for threading wires, and the through-hole extends through the frame, with the position of the through-hole corresponding to the hollow sleeve. The through-hole facilitates the passage of any excess portion of the headphone cable through the frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model sets up a frame with two clamping mechanisms on the inner wall of the frame. After the headphone cable passes through the hollow sleeve in the clamping mechanism, the inner threaded sleeve can apply a pushing force to the sliding pin by rotating the inner threaded sleeve, so that the clamping block at the end of the sliding pin moves synchronously. Then, the headphone cable is clamped and fixed by the combination of the clamping blocks. Moreover, the adjustableness of the sliding pin and the clamping blocks makes it suitable for headphone cables of different diameters.

[0015] 2. This utility model features a hollow disc pushed by a cylinder at the top of the frame, through which the headphone cable can pass. By pushing the hollow disc with the cylinder, the headphone cable can be pushed and subjected to a bending test. In addition, a rotatable combination of a fixed shaft and a bushing is provided between the hollow disc and the connecting plate at the end of the cylinder. This allows adjustment of the rotation angle of the hollow disc, thereby applying different angles of torsional force to the headphone cable. Combined with the thrust, this improves the accuracy of the bending test. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A partial structural diagram;

[0018] Figure 3 This utility model Figure 1 A front sectional view;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A;

[0020] Figure 5 This utility model Figure 3 Enlarged view of the clamping mechanism.

[0021] In the diagram: 1. Frame; 2. Clamping mechanism; 3. Threading hole; 4. Cylinder; 5. Connecting plate; 6. Fixed shaft; 7. Bushing; 8. Hollow disc; 9. Guide frame; 10. Locking disc; 11. Locking pin; 12. Spring 1; 13. Lever; 21. Fixed frame; 22. Hollow sleeve; 23. Internal threaded sleeve; 24. Sliding pin; 25. Clamping block; 26. Retaining ring; 27. Spring 2; 28. Guide rod. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-3An adjustable angle fixture for testing the bending of an earphone cable includes a frame 1. A cylinder 4 is fixedly installed on the top of the frame 1. The telescopic shaft of the cylinder 4 passes through the frame 1 and is slidably connected to the frame 1. A connecting plate 5 is fixedly connected to the end of the telescopic shaft. A guide frame 9 is fixedly connected to the side of the connecting plate 5. The guide frame 9 passes through the frame 1 and is slidably connected to the frame 1. A fixing shaft 6 is fixedly connected to the bottom of the connecting plate 5. A bushing 7 is connected to the outer side of the shaft of the fixing shaft 6 through a bearing. A hollow disc 8 is fixedly connected to the end of the bushing 7.

[0024] Please see Figures 3-4 A locking disc 10 is fixedly connected to the fixed shaft 6. A locking pin 11 is slidably connected inside the bushing 7, and the locking pin 11 is inserted into the locking disc 10. A spring 12 is installed inside the bushing 7. One end of the spring 12 is fixedly connected to the locking pin 11, and the other end is fixedly connected to the inner surface of the bushing 7. The spring 12 allows the elastic force to be applied to the locking pin 11. A lever 13 is fixedly connected to the pin body of the locking pin 11, and the lever 13 is slidably connected to the bushing 7. The lever 13 facilitates the pulling of the locking pin 11.

[0025] Please see Figure 1 , Figure 3 , Figure 5 The frame 1 has clamping mechanisms 2 on both its left and right sides. These clamping mechanisms facilitate the clamping and fixing of headphone cables and are suitable for headphone cables of different diameters. Each clamping mechanism 2 includes a fixing frame 21 fixedly connected to the inner wall of the frame 1. A hollow sleeve 22 is fixedly connected to the end of the fixing frame 21. An internally threaded sleeve 23 is threadedly connected to the outer side of the hollow sleeve 22. A sliding pin 24 is slidably connected inside the hollow sleeve 22, penetrating the hollow sleeve 22. One end of the sliding pin 24 abuts against the internally threaded sleeve 23, and the other end is fixedly connected to a clamping block 25. A retaining ring 26 is fixedly connected to the pin of the sliding pin 24. A second spring 27 is sleeved on the outer side of the pin of the sliding pin 24. One end of the second spring 27 is fixedly connected to the retaining ring 26, and the other end is fixedly connected to the inner wall of the hollow sleeve 22. The elastic force of the second spring 27 can act on the sliding pin 24 through the retaining ring 26, providing auxiliary repositioning for the sliding pin 24. A guide rod 28 is fixedly connected to the inner wall of the hollow sleeve 22. The guide rod 28 passes through the retaining ring 26 and is slidably connected to the retaining ring 26. The guide rod 28, in its cooperation with the retaining ring 26, guides the sliding movement of the sliding pin 24 under force. A wire hole 3 is provided on the side wall of the frame 1, and the wire hole 3 passes through the frame 1. The position of the wire hole 3 corresponds to that of the hollow sleeve 22. The wire hole 3 facilitates the passage of the redundant part of the headphone cable through the frame 1.

[0026] The specific implementation process of this utility model is as follows: In use, the headphone cable is first passed through the two wire holes 3, the hollow sleeve 22, and the hollow disc 8. Then, the inner threaded sleeve 23 is rotated, and the inner threaded sleeve 23 moves laterally through the threaded movement between it and the hollow sleeve 22. Then, the inner threaded sleeve 23 applies a radial thrust of the hollow sleeve 22 to the sliding pin 24. The clamping block 25 at the end of the sliding pin 24 moves synchronously until it clamps the headphone cable. Then, the hollow disc 8 is pushed by the cylinder 4, and the headphone cable is pushed by the hollow disc 8 to perform a bending test. In addition, the locking pin 11 is pulled by the lever 13, so that the locking pin 11 is separated from the locking disc 10, thereby releasing the restriction on the bushing 7. Then, the hollow disc 8 is rotated by the bushing 7, thereby applying a torsional force at different angles to the headphone cable. Combined with the thrust, the accuracy of the bending test can be improved.

[0027] 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. An adjustable angle tool for earphone cable bending test, comprising a frame (1), characterized in that: Clamping mechanisms (2) are provided on both the left and right sides of the frame (1). A cylinder (4) is fixedly installed on the top of the frame (1). The telescopic shaft of the cylinder (4) passes through the frame (1) and is slidably connected to the frame (1). A connecting plate (5) is fixedly connected to the end of the telescopic shaft. A guide frame (9) is fixedly connected to the side of the connecting plate (5). The guide frame (9) passes through the frame (1) and is slidably connected to the frame (1). A fixed shaft (6) is fixedly connected to the bottom of the connecting plate (5). A bushing (7) is connected to the outer side of the shaft of the fixed shaft (6) through a bearing. A hollow disc (8) is fixedly connected to the end of the bushing (7). A locking disc (10) is fixedly connected to the fixed shaft (6). A locking pin (11) is slidably connected inside the bushing (7). The locking pin (11) is inserted into the locking disc (10). A spring (12) is provided inside the bushing (7).

2. The adjustable angle tool for earphone cable bending test according to claim 1, wherein: One end of the spring (12) is fixedly connected to the locking pin (11), and the other end of the spring (12) is fixedly connected to the inner surface of the bushing (7).

3. The adjustable angle tool for earphone cable bending test according to claim 1, wherein: A lever (13) is fixedly connected to the pin body of the locking pin (11), and the lever (13) is slidably connected to the bushing (7).

4. The adjustable angle tool for earphone cable bending test according to claim 1, wherein: The clamping mechanism (2) includes a fixed frame (21) fixedly connected to the inner wall of the frame (1). A hollow sleeve (22) is fixedly connected to the end of the fixed frame (21). An inner threaded sleeve (23) is threadedly connected to the outer side of the hollow sleeve (22). A sliding pin (24) is slidably connected inside the hollow sleeve (22), and the sliding pin (24) is set through the hollow sleeve (22). One end of the sliding pin (24) abuts against the inner threaded sleeve (23), and the other end of the sliding pin (24) is fixedly connected to a clamping block (25).

5. The adjustable angle tool for earphone cable bending test according to claim 4, characterized in that: A retaining ring (26) is fixedly connected to the pin body of the sliding pin (24). A second spring (27) is sleeved on the outside of the pin body of the sliding pin (24). One end of the second spring (27) is fixedly connected to the retaining ring (26), and the other end of the second spring (27) is fixedly connected to the inner wall of the hollow sleeve (22).

6. The adjustable angle tool for earphone cable bending test according to claim 5, characterized in that: The hollow sleeve (22) has a guide rod (28) fixedly connected to its inner wall. The guide rod (28) passes through the retaining ring (26) and is slidably connected to the retaining ring (26).

7. The adjustable angle tool for earphone cable bending test according to claim 4, characterized in that: The side wall of the frame (1) is provided with a thread hole (3), and the thread hole (3) is provided through the frame (1). The position of the thread hole (3) corresponds to the hollow sleeve (22).

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