Shaft buckle structure

Abstract

The utility model discloses a shaft type buckle structure which comprises at least two clamping pieces, each clamping piece comprises a convex connecting face and a concave connecting face, grooves are formed in the concave connecting faces, protruding pieces are arranged on the convex connecting faces, the shapes, the number and the positions of the protruding pieces are matched with the shapes, the number and the positions of the grooves, and the protruding pieces are connected with the convex connecting faces. The protruding piece of one clamping piece can be contained in the groove of the other clamping piece to be connected with the two adjacent clamping pieces in a clamped mode, and at least two clamping pieces are connected with each other in a clamped mode to form the shaft buckle mechanism with an axial through hole. Through the arrangement of the protruding piece and the groove, installation can be completed by extruding the protruding piece into the groove, the installation operation is simple, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of buckles and in particular to a shaft buckle structure. Background Art

[0002] At present, shaft parts are widely used in many fields such as mechanical equipment, automobile manufacturing, aerospace, etc., among which the connection and fixing method between shafts and accessories is crucial. Although the existing shaft buckle structures, such as bolt fastening, spring fixing, latch locking, etc., have been widely used in the market, there are still some problems in actual operation. Traditional shaft buckle structures often require multiple steps to complete installation and fixing, such as complex thread matching or latch insertion that requires external tools. It is not only time-consuming, but also limited in application on automated production lines. In addition, under the action of vibration, impact or long-term load, the existing shaft buckles may become loose, resulting in failure of the connection between the shaft and accessories, affecting the stability and safety of the overall system. Utility Model Content

[0003] The purpose of the utility model is to provide a shaft buckle structure to solve the above technical problems.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a shaft-type snap-in structure, comprising at least two snap-in parts, the snap-in parts comprising a convex connecting surface and a concave connecting surface, the concave connecting surface is provided with a groove, and the convex connecting surface is provided with a protrusion, the shape, number and position of the protrusion are adapted to the groove, the protrusion of the snap-in part can be accommodated in the groove of another snap-in part to clamp two adjacent snap-in parts, and at least two of the snap-in parts are clamped to each other to form a shaft-type snap-in mechanism with an axial through hole.

[0005] Furthermore, the material of the protrusion is an elastically deformable material.

[0006] Furthermore, the clamping piece and the protruding piece are integrally connected, and the material of the clamping piece and the protruding piece is an elastically deformable material.

[0007] Furthermore, the materials of the clamping piece and the protruding piece are acid-resistant and alkali-resistant materials, selected from any one of PVE, PVC, PP, Peek, and PVDF.

[0008] Furthermore, the specific shape of the axial through hole is adapted to the outer surface shape of the shaft part to be fixed.

[0009] Furthermore, the axial through hole is in the shape of a cylinder, a quadrangular prism, a pentagonal prism or a hexagonal prism.

[0010] Furthermore, the aperture of the axial through hole is not larger than the diameter of the shaft-like part, and the axial through hole and the shaft-like part are interference fit.

[0011] Further, the protruding member includes a connecting portion and a protruding portion, one end of the connecting portion is connected to the convex connecting surface, and the other end is connected to the protruding portion, the groove includes a connecting groove and a limiting groove, and when the protruding member is accommodated in the groove, the protruding portion is located in the limiting groove, and the connecting portion is located in the connecting groove, and the width of the protruding portion is greater than the width of the connecting groove.

[0012] Furthermore, the cross section of the raised portion is circular, elliptical or triangular.

[0013] Furthermore, there are two clamping parts, and the two clamping parts are clamped together to form a shaft-type buckle mechanism.

[0014] Furthermore, the clamping member is in the shape of a semicircular ring, including an inner side surface abutting against the shaft-like parts, and an outer side surface arranged opposite to the inner side surface, and the outer side surface is arc-shaped with an arc of 180 degrees.

[0015] The beneficial effects of the utility model are:

[0016] 1) In this application, by setting the protrusion and the groove, the installation can be completed by squeezing the protrusion into the groove, which simplifies the installation operation and improves the installation efficiency.

[0017] 2) In this application, the protrusion and the connecting piece are made of elastic material. Under the action of vibration and impact, the elasticity plays a buffering role to prevent the rigid shaft buckle from loosening. This solves the problem that the existing shaft buckle may loosen under vibration, impact or long-term load, resulting in failure of the connection between the shaft and the accessories, affecting the stability and safety of the overall system.

[0018] 3) The materials PVE and PVC used in this application are stable, corrosion-resistant, and not easily damaged, which prolongs the service life of the buckle mechanism. This solves the problem that the existing buckle structure materials are easily damaged under specific working conditions, such as high temperature, low temperature, and corrosive environment, resulting in a shortened service life.

[0019] 4) Axial through holes of different shapes and sizes can be prepared to adapt to shafts of different diameters, lengths or shapes, thereby improving the flexibility of the snap-fit ​​structure.

[0020] 5) The material of the present application is PVE or PVC, which can be prepared by melt injection molding process, thus solving the problem that the production process of some shaft clips is complicated or requires special materials.

[0021] 6) After the buckle mechanism of the present application is removed, it can continue to be reused, which is in line with the current development trend of green manufacturing and circular economy. It solves the technical problem that some existing buckle structures are difficult to recycle or dispose of after the end of their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and the description thereof are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A three-dimensional diagram of a shaft buckle structure according to an embodiment of the utility model;

[0025] Figure 2 This is a front view of a shaft buckle structure according to an embodiment of the utility model;

[0026] Figure 3 A three-dimensional diagram of a shaft buckle structure according to another embodiment of the utility model;

[0027] Figure 4 This is a front view of a shaft buckle structure according to another embodiment of the utility model;

[0028] Figure 5 This is an exploded view of a shaft buckle structure according to another embodiment of the utility model;

[0029] Figure 6 This is a three-dimensional diagram of a clamping member according to another embodiment of the present invention.

[0030] In the figure: 1, clamping part; 11, outer side surface; 12, inner side surface; 13, convex connecting surface; 14, concave connecting surface; 2, groove; 21, connecting groove; 22, limiting groove; 3, protruding part; 31, connecting part; 32, protruding part; 4, axial through hole. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0032] In addition, the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article, unless otherwise specified, generally means that the associated objects before and after are in an "or" relationship.

[0033] See attached Figure 1 and attached Figure 2 As shown, a shaft buckle structure in this embodiment is an annular structure composed of multiple clips 1 clipped together, and the annular axial through hole 4 is used to clip on the shaft part, thereby fixing the shaft part. The buckle structure in this embodiment is composed of two groups of clips 1, and the two clips 1 are clipped together to form an annular structure. The axial through hole 4 is a cylinder, which is suitable for cylindrical shaft parts.

[0034] See attached Figure 5 and attached Figure 6 As shown, specifically, the clamping component 1 is semicircular, including an inner side surface 12 abutting against shaft parts, and an outer side surface 11 arranged opposite to the inner side surface 12, and the outer side surface 11 is arc-shaped, and the curvature is related to the number of clamping components 1 constituting the snap structure. For example, if the number of the clamping components 1 is 4, the curvature is 90 degrees, and if the number of the clamping components 1 is 3, the curvature is 120 degrees, so as to ensure that multiple clamping components 1 can form a complete snap structure. In this embodiment, there are 2 clamping components 1, so the curvature of the outer side surface 11 is 180 degrees.

[0035] In some embodiments, the specific shape of the axial through hole 4 of the buckle structure formed by connecting the inner side surfaces 12 of the multiple clips 1 is adapted to the outer surface shape of the shaft part to be fixed, for example, see the attached Figure 1 and attached Figure 2 As shown, if the axial part is a cylinder, the axial through hole 4 is a cylindrical through hole, the aperture of the axial through hole 4 is not larger than the diameter of the shaft part, the axial through hole 4 and the shaft part are interference fit to fix the shaft part, and at this time the inner side surface 12 is an arc-shaped structure, and the curvature is the same as the curvature of the outer side surface 11.

[0036] In some other embodiments, see the attached Figure 3 As shown, if the shaft parts are hexagonal square steel, the axial through hole 4 is in the shape of a hexagonal prism, and the inner side surface 12 is also a folded surface structure composed of multiple planes. After multiple clips 1 are snapped together to form a snap structure, the multiple folded surface structures form a hexagonal prism-shaped axial through hole 4 to match the hexagonal square steel.

[0037] In other embodiments, see the attached Figure 4As shown, if the shaft parts are made of pentagonal steel, the axial through hole 4 is in the shape of a pentagonal prism, and the inner side surface 12 is also a folded surface structure composed of multiple planes. After multiple clips are snapped together to form a snap structure, the multiple folded surface structures form a pentagonal prism-shaped axial through hole 4 to match the pentagonal square steel.

[0038] See attached Figure 1 , 5 As shown in Figures 6 and 7, in some embodiments, the clamping member 1 includes a convex connection surface 13 and a concave connection surface 14, and the convex connection surface 13 of the clamping member 1 is clamped with the concave connection surface 14 of the adjacent clamping member 1 to connect the two clamping members 1. Specifically, a groove 2 is provided on the concave connection surface 14, and a protrusion 3 is provided on the convex connection surface 13. The shape, number, and position of the protrusion 3 are adapted to the groove 2, and the protrusion 3 can be accommodated in the groove 2 to connect the two adjacent clamping members 1.

[0039] In some implementations, the protruding member 3 includes a connecting portion 31 and a protruding portion 32. One end of the connecting portion 31 is connected to the convex connecting surface 13, and the other end is connected to the protruding portion 32. The axial width of the protruding portion 32 is greater than the width of the connecting portion 31. Accordingly, the groove 2 includes a connecting groove 21 and a limiting groove 22. When the protruding member 3 is accommodated in the groove 2, the protruding portion 32 is located in the limiting groove 22, and the connecting portion 31 is located in the connecting groove 21. Since the axial width of the protruding portion 32 is greater than the width of the connecting portion 31, and the width of the connecting portion 31 matches the width of the connecting groove 21, the width of the protruding portion 32 is greater than the width of the connecting groove 21. Under the action of external force, the protruding portion 32 is accommodated in the limiting groove 22 and cannot fall off, thereby making the convex connecting surface 13 and the concave connecting surface 14 firmly connected.

[0040] In some embodiments, the material of the protrusion 3 is an elastically deformable material. Under the action of external force, the protrusion 3 is squeezed and elastically deformed, and enters the limiting groove through the connecting groove 21. After entering the limiting groove, the protrusion 3 returns to its original state, and its axial width is greater than the width of the connecting groove 21, and it cannot fall off through the connecting groove 21, and then the protrusion 3 is clamped in the groove 2.

[0041] In some embodiments, the clip 1 and the protrusion 3 are integrally connected, and the material of the clip 1 and the protrusion 1 is an elastic deformation material. Specifically, the material of the clip 1 and the protrusion 3 is an acid-resistant and alkali-resistant material, selected from any one of PVE, PVC, PP, Peek, and PVDF. The material is stable in nature, corrosion-resistant, not easy to damage, and extends the service life of the buckle mechanism. It solves the problem that the existing buckle structure materials are easily damaged under specific working conditions, such as high temperature, low temperature, and corrosive environment, resulting in a shortened service life; and the material can be prepared by a melt injection molding process, which solves the problem that the production process of some shaft buckles is complicated or requires special materials.

[0042] In some embodiments, the cross-section of the protrusion 32 is circular, or may be elliptical or triangular, as long as it can be snapped into the groove 2, and this application does not limit this.

[0043] In some embodiments, the protrusion 3 and the convex connection surface 13 are integrally connected, and after the protrusion 3 is accommodated in the groove 2, it forms a smooth curved surface with the outer side surface 11 to facilitate the installation of the snap-fit ​​structure.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A shaft buckle structure, characterized in that: The invention comprises at least two clamping parts (1), wherein the clamping parts (1) comprise a convex connection surface (13) and a concave connection surface (14), wherein the concave connection surface (14) is provided with a concave groove (2), and the convex connection surface (13) is provided with a protrusion (3), wherein the shape, number and position of the protrusion (3) are adapted to the concave groove (2), and the protrusion (3) of the clamping part (1) can be accommodated in the concave groove (2) of another clamping part (1) to clamp two adjacent clamping parts (1), and at least two clamping parts (1) are clamped to each other to form a shaft-type clamping mechanism with an axial through hole (4).

2. The shaft buckle structure according to claim 1, characterized in that: The material of the protruding piece (3) is an elastically deformable material.

3. The shaft buckle structure according to claim 1, characterized in that: The clamping piece (1) and the protruding piece (3) are integrally connected, and the material of the clamping piece (1) and the protruding piece (3) is an elastically deformable material.

4. The shaft buckle structure according to claim 3, characterized in that: The clamping piece (1) and the protruding piece (3) are made of acid-resistant and alkali-resistant materials, and are selected from any one of PVE, PVC, PP, Peek, and PVDF.

5. The shaft buckle structure according to claim 1, characterized in that: The specific shape of the axial through hole (4) is adapted to the shape of the outer surface of the shaft part to be fixed.

6. The shaft buckle structure according to claim 1, characterized in that: The axial through hole (4) is in the shape of a cylinder, a quadrangular prism, a pentagonal prism or a hexagonal prism.

7. The shaft buckle structure according to claim 1, characterized in that: The protruding member (3) comprises a connecting portion (31) and a protruding portion (32); one end of the connecting portion (31) is connected to the convex connecting surface (13), and the other end is connected to the protruding portion (32); the groove (2) comprises a connecting groove (21) and a limiting groove (22); when the protruding member (3) is accommodated in the groove (2), the protruding portion (32) is located in the limiting groove (22), and the connecting portion (31) is located in the connecting groove (21); the width of the protruding portion (32) is greater than the width of the connecting groove (21).

8. The shaft buckle structure according to claim 7, characterized in that: The cross section of the protrusion (32) is circular, elliptical or triangular.

9. The shaft buckle structure according to claim 1, characterized in that: There are two clamping parts (1), and the two clamping parts (1) are clamped together to form a shaft-type clamping mechanism.

10. The shaft buckle structure according to any one of claims 1 to 9, characterized in that: The clamping member (1) is semi-circular and comprises an inner side surface (12) abutting against a shaft-like part, and an outer side surface (11) arranged opposite to the inner side surface (12).

Images