Stamping structure assembled miniature vibrating needle

Abstract

The utility model provides a stamping structure assembly miniature vibrating needle, which comprises an assembly cylinder, a vibrating needle body and a spring, the assembly cylinder is internally provided with the spring for generating elastic force, the upper side of the assembly cylinder is movably provided with the vibrating needle body through the spring, the assembly cylinder is internally provided with an installation cavity, the upper end of the installation cavity is open, and the lower end of the installation cavity is open. Compared with the prior art, the spring has the following beneficial effects that the spring is arranged, and the area of the cross section of the elastic part is increased to form a strip-shaped structure, so that the elastic force of the spring can be effectively improved while the overall diameter of the spring is not increased, and the transverse use hardness of the spring is synchronously improved; the situation that the spiral spring makes contact with the inner wall face of the barrel body due to winding advancing during compression and reset can be effectively avoided, and the service life of the spring and the service life of the assembly barrel can be prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of spring pins, and particularly relates to a micro spring pin assembled with a stamping structure. Background Art

[0002] Micro pogo pins are usually a kind of precision connection components used in the field of electronics and microelectronics, also known as pogo pins (derived from the elastic jumping concept of "pogo stick"). This component mainly consists of an internal spring and a retractable ejector pin, which is encapsulated in a slender tubular housing. Micro pogo pins are designed to provide reliable electrical connections in a limited space and are commonly used in scenarios that require frequent plugging and unplugging or high-density wiring, such as smartphones, wearable devices, medical devices, and high-end circuit board testing.

[0003] As the existing spring pins have narrower pitch and more jacks, the spring pins have become thinner, which makes the outer diameter of the spring pins thinner. Accordingly, the wire diameter of the coil spring needs to be thinner. However, the thinner the wire diameter of the coil spring is, the easier it is for the coil spring to meander, and the coil spring is more in contact with the inner wall of the cylinder. This leads to the problem of damage to the cylinder and the coil spring due to long-term mutual scratching. Therefore, we hope to design a micro spring pin with a new structure to solve this problem. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model aims to provide a stamping structure for assembling a micro-pin to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is realized by the following technical scheme: a stamping structure assembling micro-elastic needle comprises: an assembling cylinder, an elastic needle body and a spring, wherein a spring for generating elastic force is installed inside the assembling cylinder, and the elastic needle body is movably installed on the upper side of the assembling cylinder through the spring;

[0006] An installation cavity is arranged inside the assembly cylinder, and the upper end of the installation cavity is designed to be open;

[0007] The elastic needle body comprises a needle rod 1 and a needle rod 2, and the upper end of the needle rod 2 is integrally provided with the needle rod 1;

[0008] The spring comprises an abutting portion, an elastic portion and a base. The elastic portion is integrally provided on the upper side of the base, and the abutting portion is integrally provided on the upper end of the elastic portion.

[0009] As a preferred embodiment, the upper side of the assembly cylinder is radially recessed inward to form an inner recess, the inner wall diameter of the inner recess is smaller than the inner diameter of the mounting cavity, and the inner wall of the inner recess is slidably connected to an outer wall of the needle rod.

[0010] As a preferred embodiment, a limiting portion 1 is provided on the upper side of the needle rod 1, and the limiting portion 1 is an annular structure integrally provided with the needle rod 1, and the diameter of the limiting portion 1 is greater than the diameter of the needle rod 1.

[0011] As a preferred embodiment, a lower side of the needle bar is integrally arranged with needle bar 2 through limiting portion 2, and limiting portion 2 is an annular structure integrally arranged with a portion between needle bar 1 and needle bar 2. In actual use, needle bar 2 is used to connect with the abutting portion and the elastic portion to form a guide to avoid bending of the elastic portion and excessive friction and scratching against the inner wall of the assembly tube.

[0012] As a preferred embodiment, the diameter of the limiting part one is larger than the diameter of the limiting part two, the diameter of the needle rod one is smaller than the diameter of the needle rod, the diameter of the limiting part one is the same as the outer diameter of the assembly cylinder, the diameter of the limiting part two is the same as the inner diameter of the mounting cavity, and the diameter of the limiting part two is larger than the diameter of the inner recess.

[0013] As a preferred embodiment, the upper end opening of the abutting portion is designed to be open, the rear side of the abutting portion is vertically disconnected to form a gap, the width of the gap is less than 0.1 mm, the cross section of the elastic portion is a strip structure, and the elastic portion as a whole is a spiral structure;

[0014] A limiting column is arranged at the lower end of the base, and the diameter of the limiting column matches the inner diameter of the assembly tube. In actual use, a wear-resistant coating is sprayed on the outer wall of the spring before installation to increase the service life of the spring.

[0015] As a preferred embodiment, the diameter of the cross-section of the space formed by the overall spiral of the elastic part matches the diameter of the second needle rod, the inner wall of the elastic part is slidably connected to the outer wall of the second needle rod, and a blind hole is provided inside the base, and the diameter of the blind hole matches the diameter of the second needle rod.

[0016] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: by setting the elastic needle body, a second limiting part is set on the lower side of the elastic needle body, and the formation of the entire elastic needle body is limited by the second limiting part to prevent the elastic needle body from being separated from the assembly tube and the spring, and a second needle rod is set on the lower side of the elastic needle body. When the spring is compressed, the second needle rod follows and enters the base at the bottom of the spring, so as to guide the spring and prevent the elastic part from bending and excessively rubbing against the inner wall of the assembly tube;

[0017] The setting of the spring replaces the traditional wire diameter spring and increases the cross-sectional area of ​​the elastic part to make it a strip structure. It can effectively increase the elastic force of the spring without increasing the overall diameter of the spring, and simultaneously increase the lateral hardness of the spring. It can effectively avoid the situation where the coil spring contacts the inner wall of the cylinder due to meandering during compression and resetting, which helps to increase the service life of the spring and the assembly cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 The utility model is a schematic diagram of the overall structure of a punching structure assembled micro-pin.

[0020] Figure 2 It is a schematic diagram of the connection between the spring body and the spring of a micro spring pin assembled by a stamping structure of the utility model.

[0021] Figure 3 It is a schematic diagram of a spring structure of a micro-spring pin assembled with a stamping structure according to the utility model.

[0022] Figure 4 for Figure 1 A is an enlarged schematic diagram.

[0023] In the figure, 100-assembly cylinder, 110-installation cavity, 120-inner recess;

[0024] 200 - elastic needle body, 210 - limiting part one, 220 - needle rod one, 230 - limiting part two, 240 - needle rod two; 300 - spring, 310 - abutment part, 320 - elastic part, 330 - base. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 4The utility model provides a technical solution: a stamping structure assembling a micro-elastic needle, comprising: an assembly cylinder 100, an elastic needle body 200 and a spring 300, wherein the assembly cylinder 100 is internally provided with a spring 300 for generating elastic force, and the upper side of the assembly cylinder 100 is movably provided with the elastic needle body 200 through the spring 300;

[0027] An installation cavity 110 is provided inside the assembly cylinder 100, and the upper end of the installation cavity 110 is designed to be open;

[0028] The elastic needle body 200 includes a needle rod 1 220 and a needle rod 240, and the upper end of the needle rod 240 is integrally provided with the needle rod 1 220;

[0029] The spring 300 includes an abutting portion 310 , an elastic portion 320 and a base 330 . The elastic portion 320 is integrally provided on the upper side of the base 330 , and the abutting portion 310 is integrally provided on the upper end of the elastic portion 320 .

[0030] See also Figures 1 to 4 The upper side of the assembly cylinder 100 is radially recessed inward to form an inner recess 120, the inner wall diameter of the inner recess 120 is smaller than the inner diameter of the mounting cavity 110, and the inner wall of the inner recess 120 is slidably connected to the outer wall of the needle rod 220.

[0031] A limiting portion 210 is disposed on the upper side of the needle rod 220 . The limiting portion 210 is an annular structure integrally disposed with the needle rod 220 . The diameter of the limiting portion 210 is greater than the diameter of the needle rod 220 .

[0032] The lower side of needle rod 1 220 is integrally arranged with needle rod 2 240 through limiting portion 230. Limiting portion 230 is an annular structure integrally arranged with the part between needle rod 1 220 and needle rod 240. In actual use, needle rod 240 is used to connect with the abutting portion 310 and the elastic portion 320 to form a guide to prevent the elastic portion 320 from bending and causing excessive friction and scratching against the inner wall of the assembly cylinder 100.

[0033] The diameter of the limiting part 1 210 is larger than the diameter of the limiting part 230 , the diameter of the needle rod 1 220 is smaller than the diameter of the needle rod, the diameter of the limiting part 1 210 is the same as the outer diameter of the assembly cylinder 100 , the diameter of the limiting part 230 is the same as the inner diameter of the installation cavity 110 , and the diameter of the limiting part 230 is larger than the diameter of the inner recess 120 .

[0034] As the first embodiment of the utility model, a second limiting portion 230 is provided at the lower side of the elastic needle body 200, and the formation of the entire elastic needle body 200 is limited by the second limiting portion 230 to prevent the elastic needle body 200 from being separated from the assembly tube 100 and the spring 300. A second needle rod 240 is provided at the lower side of the elastic needle body 200. When the spring 300 is compressed, the second needle rod 240 follows and enters into the base 330 at the bottom of the spring 300 (when the elastic needle body 200 is compressed to the limit, the lower end of the second needle rod 240 just enters into the base 330 and does not collide with the bottom of the base 330), which can guide the spring 300 and prevent the elastic portion 320 from bending and excessively rubbing against the inner wall of the assembly tube 100.

[0035] See also Figures 1 to 4 The upper end opening of the abutting portion 310 is designed to be open, the rear side of the abutting portion 310 is vertically disconnected to form a gap, the width of the gap is less than 0.1 mm, the cross section of the elastic portion 320 is a strip structure, and the elastic portion 320 is a spiral structure as a whole;

[0036] A limit column is set at the lower end of the base 330, and the diameter of the limit column matches the inner diameter of the assembly tube 100. In actual use, the outer wall of the spring 300 is sprayed with a wear-resistant coating before installation to increase the service life of the spring 300. Except for the limit column, the above-mentioned spring 300 has no direct contact with the inside of the assembly tube 100. The setting of the limit column can make the spring 300 more stable during operation.

[0037] The diameter of the cross-section of the space formed by the overall spiral of the elastic part 320 matches the diameter of the needle rod 240 , the inner wall of the elastic part 320 is slidably connected to the outer wall of the needle rod 240 , and a blind hole is arranged inside the base 330 , and the diameter of the blind hole matches the diameter of the needle rod 240 .

[0038] As a second embodiment of the present invention, based on the above-mentioned first embodiment, the setting of the spring 300 replaces the traditional wire diameter spring 300, and increases the cross-sectional area of ​​the elastic part 320 (the traditional wire diameter spring 300 generally relies on increasing the wire diameter to increase the elastic force of the spring 300, which will undoubtedly increase the overall diameter of the spring 300), thereby increasing the overall elastic force of the spring 300. In actual use, if the elastic needle body 200 is forced to squeeze the abutment 310 of the spring 300, the abutment 310 transmits the pressure to the elastic part 320 (the spring 300 is made of spring steel as a whole), the elastic needle body 200 is pressed against the abutment 310 of the spring 300, and the abutment 310 transmits the pressure to the elastic part 320 (the spring 300 is made of spring steel as a whole). The elastic part 320 deforms when subjected to pressure and is compressed. However, due to the wide wire diameter of the elastic part 320, it has stronger performance and greater elastic potential energy. By increasing the cross-sectional area of ​​the elastic part 320 to make it a strip structure, the elastic force of the spring 300 can be effectively improved without increasing the overall diameter of the spring 300. The lateral hardness of the spring 300 can also be improved simultaneously, which can effectively prevent the coil spring 300 from meandering during compression and resetting, thereby causing the coil spring 300 to contact the inner wall of the cylinder, thereby helping to increase the service life of the spring 300 and the assembly cylinder 100.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stamping structure assembly micro-pin, comprising: An assembly tube (100), an elastic needle body (200) and a spring (300), wherein a spring (300) for generating elastic force is installed inside the assembly tube (100), and the elastic needle body (200) is movably installed on the upper side of the assembly tube (100) via the spring (300); An installation cavity (110) is provided inside the assembly cylinder (100), and the upper end of the installation cavity (110) is designed to be open; The elastic needle body (200) comprises a needle rod 1 (220) and a needle rod 2 (240), and the upper end of the needle rod 2 (240) is integrally provided with the needle rod 1 (220); The spring (300) comprises an abutment portion (310), an elastic portion (320) and a base (330); the elastic portion (320) is integrally provided on the upper side of the base (330); and the abutment portion (310) is integrally provided on the upper end of the elastic portion (320).

2. A stamping structure assembly micro-pin as claimed in claim 1, characterized in that: The upper side of the assembly cylinder (100) is radially recessed inward to form an inner recess (120), the inner wall diameter of the inner recess (120) is smaller than the inner diameter of the mounting cavity (110), and the inner wall of the inner recess (120) is slidably connected to the outer wall of the needle rod (220).

3. A stamping structure assembly micro-pin as claimed in claim 2, characterized in that: A limiting portion (210) is disposed on the upper side of the needle rod (220); the limiting portion (210) is an annular structure integrally disposed with the needle rod (220); and the diameter of the limiting portion (210) is greater than the diameter of the needle rod (220).

4. A stamping structure assembly micro-pin as claimed in claim 3, characterized in that: The lower side of the needle rod 1 (220) is integrally arranged with the needle rod 2 (240) through the limiting part 2 (230), and the limiting part 2 (230) is an annular structure integrally arranged with the part between the needle rod 1 (220) and the needle rod 2 (240).

5. A stamping structure assembly micro-pin as claimed in claim 4, characterized in that: The diameter of the limiting part 1 (210) is greater than the diameter of the limiting part 2 (230), the diameter of the needle rod 1 (220) is smaller than the diameter of the needle rod, the diameter of the limiting part 1 (210) is the same as the outer diameter of the assembly cylinder (100), the diameter of the limiting part 2 (230) is the same as the inner diameter of the installation cavity (110), and the diameter of the limiting part 2 (230) is greater than the diameter of the inner recess (120).

6. The punching structure assembly micro-pin as claimed in claim 1, characterized in that: The upper end opening of the abutting portion (310) is designed to be open, the rear side of the abutting portion (310) is vertically disconnected to form a gap, the width of the gap is less than 0.1 mm, the cross section of the elastic portion (320) is a strip-shaped structure, and the elastic portion (320) is a spiral structure as a whole; A limiting column is disposed at the lower end of the base (330), and the diameter of the limiting column matches the inner diameter of the assembly cylinder (100).

7. A stamping structure assembly micro-pin as claimed in claim 6, characterized in that: The diameter of the cross-section of the space formed by the overall spiral of the elastic part (320) matches the diameter of the second needle rod (240), the inner wall of the elastic part (320) is slidably connected to the outer wall of the second needle rod (240), and a blind hole is provided inside the base (330), and the diameter of the blind hole matches the diameter of the second needle rod (240).

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