Elastic shock absorption cylindrical pin

Abstract

The elastic shock absorption cylindrical pin comprises an elastic cylindrical pin body, an opening is formed in one side of the outer surface of the elastic cylindrical pin body, an anti-fracture structure is installed on the inner side of the elastic cylindrical pin body, and a fastening structure is installed at the opening in a sliding mode. By installing the fastening structure, when the elastic cylindrical pin deforms through the elasticity of the elastic cylindrical pin, tight connection is achieved, the elastic arc plate deforms, and therefore the fixing cone can be pricked into a hole dug in advance, the elastic cylindrical pin body can be fixed, the elastic cylindrical pin body is prevented from sliding out due to shaking, and the service life of the elastic cylindrical pin is prolonged. In addition, the friction force between the anti-skid sleeve and the inner wall of the hole is further increased through the anti-skid sleeve, the fixing cone has good supporting force, in addition, due to the fact that the material of the elastic cylindrical pin has certain elasticity, certain elastic deformation can be generated when the fixing cone is subjected to external vibration or impact, and therefore the influence of vibration and impact on connecting parts is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elastic cylindrical pins, in particular to an elastic shock-absorbing cylindrical pin. Background Art

[0002] The elastic cylindrical pin is an axial locking element. It does not require threaded connection or other traditional forms of connection. It can complete the connection work quickly and simply. The elastic cylindrical pin is usually made of spring steel material, with a cylindrical appearance and a series of arc-shaped protrusions on the inner surface. Due to its elasticity, it can deform within a certain range to achieve a tight connection.

[0003] The prior art has a publication number of CN215634564U, and the technical solution disclosed in the patent document is as follows: a spring pin with a hollow structure, comprising: a first metal tube, a front end of which is provided with serrated grooves at equal intervals; a second metal tube, the second metal tube being located above the first metal tube. The spring pin with a hollow structure utilizes a tungsten carbide coating to improve the wear resistance, corrosion resistance and high temperature resistance of the spring pin, so that the tungsten carbide coating can be fully coated on the spring pin, the spring pin can be operated, and the installation and assembly are convenient.

[0004] The spring pin in the above patent has a simple structure. When it needs to be installed, it can be pressed into a pre-punched assembly hole. However, since the outer surface angle of the spring pin is smooth, the spring pin inserted into the hole is easy to shake or even slip out, thereby affecting the connection effect of the spring pin. Utility Model Content

[0005] The utility model aims to provide an elastic shock-absorbing cylindrical pin to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an elastic shock-absorbing cylindrical pin, comprising an elastic cylindrical pin body, an opening is opened on one side of the outer surface of the elastic cylindrical pin body, an anti-fracture structure is installed on the inner side of the elastic cylindrical pin body, and a fastening structure is slidably installed at the opening.

[0007] The fastening structure comprises a piston plate, an elastic arc plate is fixedly connected between two piston plates, and a locking assembly is fixedly installed on the upper surface of the elastic arc plate.

[0008] As a further preferred embodiment of the present technical solution, the openings on both sides are provided with opening grooves, piston grooves are provided inside the opening grooves, the outer wall of the piston plate is slidably connected to the outer wall of the piston groove, and the elastic arc plate passes through the opening grooves.

[0009] As a further preferred embodiment of the technical solution, positioning grooves are arranged on the inner side of the elastic cylindrical pin body, and limiting grooves are arranged in the positioning grooves.

[0010] As a further preferred embodiment of the present technical solution, the anti-fracture structure includes a reinforcing arc plate, and the outer surface of the reinforcing arc plate is arranged with positioning convex plates, and the outer surface of the positioning convex plates is arranged with limiting strips.

[0011] In the above technical solution, the strength of the elastic cylindrical pin body can be increased, and the replacement frequency of the elastic cylindrical pin can be reduced.

[0012] As a further preferred embodiment of the present technical solution, the positioning protrusion is engaged with the positioning groove, and the limiting strip is engaged with the limiting groove.

[0013] In the above technical solution, the reinforced arc plate can be positioned to prevent separation, and the clamping effect is good.

[0014] As a further preferred embodiment of the present technical solution, the locking assembly comprises a T-shaped plate, the T-shaped plate is fixedly connected to the outer surface of the elastic arc plate, and the outer wall of the T-shaped plate is provided with an anti-slip sleeve.

[0015] In the above technical solution, the elastic arc plate is deformed so that the fixing cone can penetrate into the pre-drilled hole, thereby fixing the elastic cylindrical pin body and preventing the elastic cylindrical pin from sliding out due to shaking.

[0016] As a further preferred embodiment of the technical solution, anti-skid grooves are arranged on the anti-skid sleeve, and fixed cones are arranged on the anti-skid sleeve, and the fixed cones are located at the interval between two adjacent anti-skid grooves.

[0017] In the above technical solution, the anti-slip sleeve is provided to further increase the friction with the inner wall of the hole, so that the fixed cone has better supporting force.

[0018] The utility model provides an elastic shock-absorbing cylindrical pin, which has the following beneficial effects:

[0019] (1) The utility model installs a fastening structure. When the elastic cylindrical pin is deformed by its own elasticity, a tight connection is achieved, and the elastic arc plate is deformed, so that the fixing cone can be inserted into the pre-drilled hole, and the main body of the elastic cylindrical pin can be fixed to prevent the elastic cylindrical pin from sliding out due to shaking. The anti-slip sleeve further increases the friction with the inner wall of the hole, so that the fixing cone has better supporting force. In addition, since the material of the elastic cylindrical pin has a certain elasticity, it can produce a certain elastic deformation when subjected to external vibration or impact, thereby reducing the influence of vibration and impact on the connecting parts.

[0020] (2) The utility model provides an anti-fracture structure on the inner side of the elastic cylindrical pin body and a reinforcing arc plate, which can increase the strength of the elastic cylindrical pin body and reduce the replacement frequency of the elastic cylindrical pin. In addition, the positioning convex plate and the limit strip are clamped in the positioning groove and the limit groove, which can position the reinforcing arc plate and prevent separation, and the clamping effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 The utility model is Figure 1 Sectional drawing;

[0023] Figure 3 This is a schematic diagram of the structure of the anti-fracture structure of the utility model;

[0024] Figure 4 This is an enlarged view of Figure A of the present utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the reinforcement component of the utility model;

[0026] In the figure: 1. elastic cylindrical pin body; 2. anti-fracture structure; 3. fastening structure; 11. opening; 12. positioning groove; 13. limit groove; 14. opening groove; 15. piston groove; 21. reinforcing arc plate; 22. positioning convex plate; 23. limit strip; 31. piston plate; 32. elastic arc plate; 33. locking assembly; 331. T-shaped plate; 332. anti-slip sleeve; 333. anti-slip groove; 334. fixing cone. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] The utility model provides a technical solution: Figure 1 and Figure 2 As shown, in this embodiment, an elastic shock-absorbing cylindrical pin includes an elastic cylindrical pin body 1, and an opening 11 is provided on one side of the outer surface of the elastic cylindrical pin body 1. The characteristics are as follows: an anti-fracture structure 2 is installed on the inner side of the elastic cylindrical pin body 1, a fastening structure 3 is slidably installed at the opening 11, opening grooves 14 are provided on both sides of the openings 11, piston grooves 15 are provided on the inner sides of the opening grooves 14, the outer wall of the piston plate 31 is slidably connected to the outer wall of the piston groove 15, and the elastic arc plate 32 passes through the opening groove 14.

[0029] like Figure 3 and Figure 4As shown, the inner side of the elastic cylindrical pin body 1 is arranged with positioning grooves 12, and the positioning grooves 12 are arranged with limiting grooves 13. The anti-fracture structure 2 includes a reinforcing arc plate 21, and the outer surface of the reinforcing arc plate 21 is arranged with positioning convex plates 22, and the outer surface of the positioning convex plates 22 is arranged with limiting strips 23. The positioning convex plates 22 are clamped with the positioning grooves 12, and the limiting strips 23 are clamped with the limiting grooves 13. By arranging the anti-fracture structure 2 on the inner side of the elastic cylindrical pin body 1 and the reinforcing arc plate 21, the strength of the elastic cylindrical pin body 1 can be increased and the replacement frequency of the elastic cylindrical pin can be reduced. In addition, the positioning convex plates 22 and the limiting strips 23 are clamped in the positioning grooves 12 and the limiting grooves 13, so as to position the reinforcing arc plate 21 and prevent separation, and the clamping effect is good.

[0030] like Figure 2 and Figure 5 As shown, the fastening structure 3 includes a piston plate 31, an elastic arc plate 32 is fixedly connected between the two piston plates 31, a locking assembly 33 is fixedly installed on the upper surface of the elastic arc plate 32, and the locking assembly 33 includes a T-shaped plate 331, the T-shaped plate 331 is fixedly connected to the outer surface of the elastic arc plate 32, and the outer wall of the T-shaped plate 331 is provided with an anti-skid sleeve 332, and the anti-skid grooves 333 are arranged on the anti-skid sleeve 332, and the fixed cone 334 is arranged on the anti-skid sleeve 332, and the fixed cone 334 is located at the interval between two adjacent anti-skid grooves 333. By installing the fastening structure 3, when the elastic cylindrical pin passes through Its own elasticity causes it to deform, thereby achieving a tight connection, and causing the elastic arc plate 32 to deform, so that the fixing cone 334 can be inserted into the pre-drilled hole, and the elastic cylindrical pin body 1 can be fixed to prevent shaking and causing the elastic cylindrical pin to slip out. The additional anti-slip sleeve 332 further increases the friction with the inner wall of the hole, so that the fixing cone 334 has better supporting force. In addition, since the material of the elastic cylindrical pin has a certain elasticity, it can produce a certain elastic deformation when subjected to external vibration or impact, thereby reducing the impact of vibration and impact on the connecting parts.

[0031] The utility model provides an elastic shock-absorbing cylindrical pin, and the specific working principle is as follows: the elastic cylindrical pin is pressed into a pre-drilled hole, and the connected parts are fixed together by the force generated by its elastic deformation, so that the elastic arc plate 32 is squeezed and deformed, so that the fixing cone 334 is inserted into the pre-drilled hole to fix the elastic cylindrical pin body 1, and the anti-slip sleeve 332 provided in addition further increases the friction with the inner wall of the hole, so that the fixing cone 334 has better supporting force; the reinforcing arc plate 21 provided can increase the strength of the elastic cylindrical pin body 1 and reduce the replacement frequency of the elastic cylindrical pin.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elastic shock-absorbing cylindrical pin, comprising an elastic cylindrical pin body (1), wherein one side of the outer surface of the elastic cylindrical pin body (1) is provided with an opening (11), characterized in that: An anti-fracture structure (2) is installed inside the elastic cylindrical pin body (1), and a fastening structure (3) is slidably installed at the opening (11); The fastening structure (3) comprises a piston plate (31), an elastic arc plate (32) is fixedly connected between the two piston plates (31), and a locking assembly (33) is fixedly mounted on the upper surface of the elastic arc plate (32).

2. The elastic shock-absorbing cylindrical pin according to claim 1, characterized in that: The openings (11) on both sides are provided with opening grooves (14), the inner sides of the opening grooves (14) are provided with piston grooves (15), the outer wall of the piston plate (31) is slidably connected to the outer wall of the piston groove (15), and the elastic arc plate (32) passes through the opening grooves (14).

3. The elastic shock-absorbing cylindrical pin according to claim 1, characterized in that: Positioning grooves (12) are arranged on the inner side of the elastic cylindrical pin body (1), and limiting grooves (13) are arranged in the positioning grooves (12).

4. The elastic shock-absorbing cylindrical pin according to claim 1, characterized in that: The anti-fracture structure (2) comprises a reinforcing arc plate (21), the outer surface of the reinforcing arc plate (21) is provided with positioning convex plates (22), and the outer surface of the positioning convex plates (22) is provided with limiting strips (23).

5. The elastic shock-absorbing cylindrical pin according to claim 4, characterized in that: The positioning protrusion (22) is clamped with the positioning groove (12), and the limiting strip (23) is clamped with the limiting groove (13).

6. The elastic shock-absorbing cylindrical pin according to claim 1, characterized in that: The locking assembly (33) comprises a T-shaped plate (331), the T-shaped plate (331) is fixedly connected to the outer surface of the elastic arc plate (32), and the outer wall of the T-shaped plate (331) is provided with an anti-slip sleeve (332).

7. The elastic shock-absorbing cylindrical pin according to claim 6, characterized in that: The anti-skid sleeve (332) is provided with anti-skid grooves (333) arranged thereon, and the anti-skid sleeve (332) is provided with fixed cones (334) arranged thereon, and the fixed cones (334) are located at the interval between two adjacent anti-skid grooves (333).

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