Cylindrical cotter pin

By designing a tapered guide head and a misalignment groove on the cylindrical cotter pin, the problem of the cylindrical cotter pin easily getting tangled during assembly is solved, achieving convenient assembly and preventing mutual entanglement.

CN223794452UActive Publication Date: 2026-01-13DONGGUAN KANGXIANG HARDWARE PROD CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520274712.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2026-01-13
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

Cylindrical cotter pins are prone to getting tangled together during assembly, causing assembly inconvenience.

Method used

Design a cylindrical cotter pin with a tapered guide head and a staggered groove structure, combined with plastic or steel materials, to ensure guidance and prevent knotting.

Benefits of technology

It improves assembly efficiency, prevents tangling, facilitates handling, and has a simple structure with good guidance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223794452U_ABST
    Figure CN223794452U_ABST
Patent Text Reader

Abstract

The utility model discloses a cylindrical cotter pin which comprises a cylindrical pin body, a through hole is formed in the upper end of the pin body, a conical guide head is arranged at one end of the pin body, an open groove is formed in the upper end of the side wall of the pin body, and a dislocation groove is formed in the end, away from the guide head, of the open groove. According to the utility model, one end of the pin body is provided with the conical guide head, so that an assembly guide effect is achieved, and the assembly efficiency is improved; the open groove is formed in the upper end of the side wall of the pin body, and the staggered groove is formed in the end, away from the guide head, of the open groove, so that mutual knotting is effectively prevented, and taking and placing are convenient; therefore, the utility model has the advantages of novel design, simple structure, good guidance quality and convenience in assembly, adopts staggered openings, and effectively prevents mutual knotting.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of pin technology, and in particular to a cylindrical cotter pin. Background Technology

[0002] A cotter pin is a mechanical part. To prevent damage to the hole wall, grease can be added to the pin hole for lubrication. Manufacturing this part requires high-quality steel and a rigid material with good elasticity. Cotter pins and closed cotter pins are generally used on bolts in various hardware fittings, mainly for a limiting function. There are many types of cotter pins, but cylindrical cotter pins, due to their elasticity, are not convenient for assembly. Because of their open design, they are prone to tangling when placed, making them inconvenient to remove. Utility Model Content

[0003] The purpose of this utility model is to provide a cylindrical cotter pin that addresses the shortcomings of existing technologies. This cylindrical cotter pin has a novel design, simple structure, good guiding properties, and is easy to assemble. It also adopts a staggered opening to effectively prevent tangling.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0005] A cylindrical cotter pin includes a cylindrical pin body with a through hole at the upper end, a conical guide head at one end of the pin body, an opening groove at the upper end of the side wall of the pin body, and a misalignment groove at the end of the opening groove away from the guide head.

[0006] The pin body is made of plastic or steel.

[0007] The opening groove is connected to the through hole.

[0008] The opening groove extends through both ends of the pin body.

[0009] The beneficial effects of this utility model are as follows: The cylindrical cotter pin of this utility model includes a cylindrical pin body with a through hole at the upper end. A conical guide head is provided at one end of the pin body, and an opening groove is provided at the upper end of the side wall of the pin body. A misaligned groove is provided at the end of the opening groove furthest from the guide head. This utility model improves assembly efficiency by providing a conical guide head at one end of the pin body; it effectively prevents tangling by providing an opening groove at the upper end of the side wall of the pin body and a misaligned groove at the end furthest from the guide head, thus facilitating placement and removal. Therefore, this utility model has the advantages of novel design, simple structure, good guidance, easy assembly, and effective prevention of tangling through the misaligned opening. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] exist Figure 1 This includes:

[0013] 1—Pin body 11—Through hole

[0014] 12—Guide head 13—Opening groove

[0015] 131 - Misalignment slot. Detailed Implementation

[0016] The present invention will now be described in conjunction with specific embodiments.

[0017] like Figure 1 As shown, a cylindrical cotter pin includes a cylindrical pin body 1, with a through hole 11 at the upper end of the pin body 1, a conical guide head 12 at one end of the pin body 1, an opening groove 13 at the upper end of the side wall of the pin body 1, and a misalignment groove 131 at the end of the opening groove 13 away from the guide head 12.

[0018] In this preferred embodiment, the pin body 1 is made of plastic or steel.

[0019] In a preferred embodiment, the opening groove 13 is connected to the through hole 11.

[0020] In a preferred embodiment, the opening groove 13 extends through both ends of the pin body 1.

[0021] Further explanation is needed. This utility model features a conical guide head 12 at one end of the pin body 1, which serves as a guide during assembly and improves assembly efficiency. An opening groove 13 is provided on the upper side wall of the pin body 1, and a misaligned groove 131 is provided on the end of the opening groove 13 furthest from the guide head 12, effectively preventing tangling and facilitating placement and removal. Therefore, this utility model has the advantages of novel design, simple structure, good guidance, easy assembly, and the use of misaligned openings to effectively prevent tangling.

[0022] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A cylindrical cotter pin, characterized in that: It includes a cylindrical pin body (1), and a through hole (11) is provided at the upper end of the pin body (1). A cone-shaped guide head (12) is provided at one end of the pin body (1). An opening groove (13) is provided at the upper end of the side wall of the pin body (1), and a misalignment groove (131) is provided at the end of the opening groove (13) that is away from the guide head (12).

2. A cylindrical cotter pin according to claim 1, characterized in that: The pin body (1) is made of plastic or steel.

3. A cylindrical cotter pin according to claim 1, characterized in that: The opening groove (13) is connected to the through hole (11).

4. A cylindrical cotter pin according to claim 1, characterized in that: The opening groove (13) extends through both ends of the pin body (1).