High-precision test pin

Abstract

The utility model discloses a high-precision test pin, which comprises a pin main body, and a pin seat connecting structure is inserted in the pin main body. According to the utility model, through installing the pin seat connecting structure, when the pin sleeves the socket, the extrusion plates on the two sides are pressed, and the extrusion plates and the clamping blocks are pressed into the limiting grooves together under the action of the springs, and when the terminal pin is in contact with the jack, the extrusion plates are loosened, so that the clamping blocks are clamped in the clamping grooves, and then the pin can be fixed. According to the utility model, the L-shaped positioning plate is clamped in the L-shaped groove by rotating the L-shaped positioning plate after the contact pin is connected with the socket, so that the socket can be further positioned and is not easy to fall off after being used for a long time, and the problem that the contact pin and the socket are easy to loosen in the prior art is solved; the rubber mat is in close contact with the L-shaped groove, friction force can be increased, and the positioning effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of test pins, in particular to a high-precision test pin. Background Art

[0002] Pins can be classified according to their uses and shapes. According to their uses, pins are mainly divided into three types: power pins, signal pins and test pins. Among them, test pins are generally used for circuit testing. Its main function is to be inserted into the device to be measured and connected to other measuring equipment through test lines for testing.

[0003] The prior art has a publication number of CN219040970U, and the technical solution disclosed in the patent document is as follows: a pin connection fixing structure, through the structural design of the connecting mechanism, under the action of the elastic metal sheet, the second connector firmly clamps the first connector, and at the same time, under the action of the restoring force of the electric spring, the moving block forms a stable contact with the first pin, and when the first pin is inserted and pulled out, the first pin does not rub against the moving block, so the silver-plated layer on the surface of the two will not be worn away.

[0004] The terminal pins are connected to the socket through pins to achieve signal or circuit transmission. The pin insertion and extraction structure design in the above patent is simple. After insertion, the pins and the socket are easily shaken due to the dragging of the wiring harness, which leads to poor contact and cannot be used anymore, affecting the transmission of signals or circuits. Utility Model Content

[0005] The purpose of the utility model is to provide a high-precision test pin to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a high-precision test pin, comprising a pin body and a socket, wherein a pin seat connection structure is inserted into the pin body.

[0007] A socket is provided at one end of the pin seat connection structure close to the pin body, and limiting grooves are provided on the upper and lower outer surfaces of the socket. A clamping structure is provided in the limiting grooves, and an anti-falling structure is fixedly installed on the outer wall of the socket close to the opening of the pin body. A wiring harness is provided in the socket, and the wiring harness passes through the anti-falling structure and the socket.

[0008] As a further preferred embodiment of the technical solution, the pin body includes an insulating sleeve, a connecting cavity is defined in the insulating sleeve, and a terminal pin is disposed in the insulating sleeve and extends to the outside of the insulating sleeve.

[0009] As a further preferred embodiment of the technical solution, a limiting block is fixedly connected to the outer surface of the socket near the opening of the connecting cavity, and the limiting block is limited by an insulating sleeve.

[0010] As a further preference of this technical solution, the clamping structure includes a spring, the springs are arranged inside the limiting groove, the other end of the spring is embedded with a pressing plate, and a clamping block is arranged at one end of the pressing plate close to the inner side of the connecting cavity.

[0011] In the above technical solution, when the terminal pin contacts the jack, release the pressing plate so that the clamping block is clamped in the clamping groove at this time, thereby being able to fix the pin, effectively making the connection between the pin and the socket firm.

[0012] As a further preference of this technical solution, clamping grooves are formed on the upper and lower inner walls of the connecting cavity, the clamping grooves are clamped with the clamping blocks, and the size of the socket is slightly smaller than that of the connecting cavity.

[0013] As a further preference of this technical solution, the anti-detachment structure includes a connecting plate, the connecting plate is fixedly connected to the socket, grooves are formed in the middle of the four sides of the connecting plate, rotating shafts are rotatably connected to the grooves, L-shaped positioning plates are fixedly connected to the outer walls of the rotating shafts, and rubber pads are arranged on the other sides of the L-shaped positioning plates.

[0014] In the above technical solution, the rubber pad is in close contact with the L-shaped groove, which can increase the friction force and improve the positioning effect.

[0015] As a further preference of this technical solution, L-shaped grooves are formed on the outer periphery of the connecting cavity near the opening, and the L-shaped grooves are clamped with the L-shaped positioning plates.

[0016] In the above technical solution, rotate the L-shaped positioning plate so that the L-shaped positioning plate is clamped in the L-shaped groove, which can further position the socket and is not easy to fall off after long-term use.

[0017] The utility model provides a high-precision test pin, which has the following beneficial effects:

[0018] (1) By installing the pin socket connection structure in the utility model, when the pin is sleeved on the socket, press the pressing plates on both sides, and under the action of the spring, the pressing plate and the clamping block are pressed into the limiting groove together. When the terminal pin contacts the jack, release the pressing plate so that the clamping block is clamped in the clamping groove at this time, thereby being able to fix the pin, effectively making the connection between the pin and the socket firm.

[0019] (2) After the pin is connected to the socket in the utility model, by rotating the L-shaped positioning plate, the L-shaped positioning plate is clamped in the L-shaped groove, which can further position the socket and is not easy to fall off after long-term use, solving the problem that the pin and the socket are easy to loosen in the prior art. In addition, a rubber pad is arranged on the L-shaped positioning plate, and the rubber pad is in close contact with the L-shaped groove, which can increase the friction force and improve the positioning effect. Description of the Drawings

[0020] Figure 1 This is the overall structural schematic diagram of the present utility model;

[0021] Figure 2 This is the split structural schematic diagram of the present utility model;

[0022] Figure 3 This is the cross-sectional view of the pin body of the present utility model;

[0023] Figure 4 This is the enlarged view of Figure A of the present utility model;

[0024] Figure 5 This is the structural schematic diagram of the anti-detachment structure of the present utility model;

[0025] In the figure: 1. Pin body; 2. Pin socket connection structure; 11. Insulating sleeve; 12. Terminal pin; 13. L-shaped groove; 111. Connection cavity; 21. Socket; 22. Jack; 23. Limit groove; 24. Limit block; 25. Clamping structure; 26. Anti-detachment structure; 251. Spring; 252. Extrusion plate; 253. Card slot; 261. Connection plate; 262. Rotating shaft; 263. L-shaped positioning plate; 264. Rubber pad; 27. Wiring harness. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0027] The present utility model provides a technical solution: As Figure 1 and Figure 3 shown, in this embodiment, a high-precision test pin includes a pin body 1 and a socket 21. A pin socket connection structure 2 is inserted into the pin body 1. The pin body 1 includes an insulating sleeve 11. A connection cavity 111 is provided in the insulating sleeve 11. A terminal pin 12 is arranged in the insulating sleeve 11 and extends to the outside of the insulating sleeve 11.

[0028] As Figure 4 and Figure 5As shown in the figure, one end of the pin socket connection structure 2 close to the pin body 1 is provided with a jack 22. Limit grooves 23 are provided on both the upper and lower outer surfaces of the socket 21. Clamping structures 25 are arranged in the limit grooves 23. An anti-drop-off structure 26 is fixedly installed on the outer wall of the socket 21 near the opening of the pin body 1. A wire harness 27 is arranged in the socket 21, and the wire harness 27 passes through the anti-drop-off structure 26 and the socket 21. A limit block 24 is fixedly connected to the outer surface of the socket 21 near the opening of the connection cavity 111. The limit block 24 is limited by an insulating sleeve 11. The clamping structure 25 includes a spring 251. The springs 251 are arranged in the limit grooves 23. The other ends of the springs 251 are embedded with pressing plates 252. A clamping block is arranged at one end of the pressing plate 252 close to the inner side of the connection cavity 111. Clamping grooves 253 are provided on the upper and lower inner walls of the connection cavity 111. The clamping grooves 253 are clamped with the clamping blocks. And the size of the socket 21 is slightly smaller than that of the connection cavity 111. By installing the pin socket connection structure 2, when the pin is sleeved on the socket, the pressing plates 252 on both sides are pressed, and under the action of the spring 251, the pressing plates 252 and the clamping blocks are pressed into the limit grooves 23 together. When the terminal pin 12 contacts the jack 22, the pressing plates 252 are released, so that the clamping blocks are clamped in the clamping grooves 253 at this time, and thus the pin can be fixed, effectively making the connection between the pin and the socket firm.

[0029] As Figure 2 and Figure 5 shown, the anti-drop-off structure 26 includes a connecting plate 261. The connecting plate 261 is fixedly connected to the socket 21. Grooves are provided in the middle of the four sides of the connecting plate 261. Rotating shafts 262 are rotatably connected in the grooves. L-shaped positioning plates 263 are fixedly connected to the outer walls of the rotating shafts 262. Rubber pads 264 are arranged on the other sides of the L-shaped positioning plates 263. L-shaped grooves 13 are provided on the outer periphery of the connection cavity 111 near the opening. The L-shaped grooves 13 are clamped with the L-shaped positioning plates 263. After the pin is connected to the socket, by rotating the L-shaped positioning plates 263, the L-shaped positioning plates 263 are clamped in the L-shaped grooves 13, and the socket 21 can be further positioned, and it is not easy to fall off after long-term use, solving the problem that the pin and the socket are easy to loosen in the prior art. In addition, rubber pads 264 are arranged on the L-shaped positioning plates 263. The rubber pads 264 are in close contact with the L-shaped grooves 13, which can increase the friction force and improve the positioning effect.

[0030] The present utility model provides a high-precision test pin. The specific working principle is as follows: Press the pressing plates 252 on both sides, and under the action of the spring 251, the pressing plates 252 and the clamping blocks are pressed into the limit grooves 23 together. When the terminal pin 12 contacts the jack 22, the pressing plates 252 are released, so that the clamping blocks are clamped in the clamping grooves 253 at this time, and thus the pin can be fixed; in addition, rotate the L-shaped positioning plates 263 so that the L-shaped positioning plates 263 are clamped in the L-shaped grooves 13 to further position the socket 21.

[0031] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-precision test pin, comprising a pin body (1) and a socket (21), characterized in that: The pin body (1) is plugged with a pin socket connection structure (2); An insertion hole (22) is provided at one end of the pin socket connection structure (2) close to the pin body (1), and limiting grooves (23) are provided on the upper and lower outer surfaces of the socket (21), and a clamping structure (25) is provided in each of the limiting grooves (23). An anti-dropping structure (26) is fixedly installed on the outer wall of the socket (21) close to the opening of the pin body (1), and a wiring harness (27) is provided in the socket (21), and the wiring harness (27) passes through the anti-dropping structure (26) and the socket (21).

2. A high-precision test pin according to claim 1, characterized in that: The plug pin body (1) comprises an insulating sleeve (11), a connecting cavity (111) is provided in the insulating sleeve (11), and a terminal plug pin (12) is arranged in the insulating sleeve (11) and extends to the outside of the insulating sleeve (11).

3. A high-precision test pin according to claim 1, characterized in that: A limiting block (24) is fixedly connected to the outer surface of the socket (21) near the opening of the connection cavity (111), and the limiting block (24) is limited by the insulating sleeve (11).

4. A high-precision test pin according to claim 1, characterized in that: The clamping structure (25) comprises a spring (251), the spring (251) being arranged inside the limiting groove (23), the other end of the spring (251) being embedded with an extrusion plate (252), and the end of the extrusion plate (252) close to the inner side of the connecting cavity (111) being provided with a clamping block.

5. A high-precision test pin according to claim 4, characterized in that: The upper and lower inner walls of the connection cavity (111) are provided with card slots (253), the card slots (253) are card-engaged with the card block, and the size of the socket (21) is slightly smaller than that of the connection cavity (111).

6. A high-precision test pin according to claim 1, characterized in that: The anti-fall-off structure (26) comprises a connecting plate (261), the connecting plate (261) being fixedly connected to the socket (21), a groove being provided in the middle of each of the four sides of the connecting plate (261), a rotating shaft (262) being rotatably connected in each of the grooves, an L-shaped positioning plate (263) being fixedly connected to the outer wall of the rotating shaft (262), and a rubber pad (264) being provided on the other side of each of the L-shaped positioning plates (263).

7. A high-precision test pin according to claim 2, characterized in that: An L-shaped groove (13) is provided on the outer periphery of the connection cavity (111) near the opening, and the L-shaped groove (13) is clamped with the L-shaped positioning plate (263).

Images