Pin

Abstract

The utility model discloses a pin which comprises a connecting ring, a disconnected opening is arranged on the connecting ring, the opening is not positioned on a stress edge of the connecting ring, a locking spring is sleeved on the connecting ring, the locking spring comprises a tight ring tightening section and a loose section capable of being compressed and rebounded, and the loose section is connected with the connecting ring. When the locking spring is in a natural state, the close-up section of the sealing ring is located at the opening and completely blocks the opening, and when the locking spring is compressed towards one side of the loose section, the close-up section of the sealing ring and the opening are staggered in position. The pin and the connecting ring serve as components for bearing tension and can be made of high-strength and high-hardness materials, the locking spring composed of the tight section and the loose section of the sealing ring serves as an elastic control piece for opening and closing, and the opening of the connecting ring can be opened by compressing the loose section of the locking spring. The opening can be closed through the locking spring sealing ring tightening section by releasing the locking spring, time and labor are saved in operation, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the field of connecting and fixing tools, in particular to a pin used for connecting and fixing. Background Art

[0002] A pin is a tool that can be used for quick connection and fixing. It is opened and closed by bending a metal wire and utilizing the elasticity of the metal. For example, pins and paper clips fixed on clothing are usually made of thinner and softer metal wires, so they can be easily opened and closed. In some places, pins as quick connectors need to withstand a certain amount of tension, so they need to be made of thicker and harder metal wires, such as connectors for fishing gear. In order to achieve a certain tension, the elastic force of the pin opening and closing is relatively large. At this time, it is rather laborious to open and close the pin only with fingers, and it is often necessary to use tools such as pliers to assist, which makes it inconvenient to use and time-consuming and laborious. Summary of the invention

[0003] In view of the above problems existing in the prior art, the utility model provides a pin which has high connection strength and is easy to open and close.

[0004] The technical solution adopted by the utility model is as follows: a pin comprises a connecting ring, a disconnected opening is provided on the connecting ring, and the opening is not located on the force-bearing edge of the connecting ring, a locking spring is sleeved on the connecting ring, the locking spring comprises a close ring tightening section and a compressible and resilient loose section, when the locking spring is in a natural state, the close ring tightening section is located at the opening and completely blocks the opening, when the locking spring is compressed toward the side of the loose section, the close ring tightening section is offset from the opening position.

[0005] Furthermore, the connecting ring is provided with a limiting mechanism for limiting the locking spring.

[0006] Furthermore, the limiting mechanism is a convex ring arranged on the connecting ring or a curved portion arranged on the connecting ring.

[0007] Furthermore, the wire diameter of the spring coil of the locking spring is smaller than the wire diameter of the connecting wire connected to the connecting ring.

[0008] Furthermore, the dense ring, the tight section and the loose section of the locking spring are integrally formed.

[0009] Furthermore, the connecting ring is in the shape of a waist-shaped ring, the opening is located on a straight section of the connecting ring close to a curved portion on one side, and both ends of the locking spring are respectively limited by the curved portions at both ends of the connecting ring.

[0010] Furthermore, a convex ring for limiting the loose section is provided on one side of the connecting ring close to the end of the loose section of the locking spring.

[0011] The pin of the utility model, the connecting ring as a component bearing the tensile force, can be made of a material with high strength and hardness, the locking spring composed of a tight section of a dense ring and a loose section is used as an elastic control member for opening and closing, the opening of the connecting ring can be opened by compressing the loose section of the locking spring, and the opening can be closed by the tight section of the locking spring when the locking spring is released, which saves time and effort in operation and has a simple structure; the tight section of the dense ring itself can withstand a certain amount of force, and the opening is not on the stress-bearing side of the connecting ring, and the connecting line inserted in the connecting ring will not stay at the opening position when stressed but will slide to the stress-bearing side of the connecting ring, so the whole pin can withstand a large tensile force. The pin of the utility model can be used as, but not limited to, a connector for fishing gear, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 It is a structural schematic diagram of a connecting ring of the utility model.

[0014] Figure 3 It is a structural schematic diagram of the locking spring of the utility model.

[0015] Figure 4 It is a schematic diagram of the utility model when the locking spring is in a compressed state. DETAILED DESCRIPTION

[0016] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively and carefully below in conjunction with the accompanying drawings and preferred embodiments of the specification, but the protection scope of the present invention is not limited to the following specific embodiments.

[0017] like Figure 1-Figure 4 As shown, the pin of this embodiment includes a connecting ring 1 and a locking spring 2. A disconnected opening 101 is provided on the connecting ring 1, and the opening 101 is not located on the force-bearing edge of the connecting ring 1. The locking spring 2 is sleeved on the connecting ring 1, and the locking spring 2 includes a tight ring section 201 and a compressible and resilient loose section 202. The tight ring section 201 and the loose section 202 are integrally formed. When the locking spring 2 is in a natural state, the tight ring section 201 is at the opening 101 and completely blocks the opening 101 (see Figure 1 ), when the locking spring 2 is compressed toward the loose section 202, the close ring and tight section 201 are offset from the opening 101 (see Figure 4 ).

[0018] In order to limit the positions of the two ends of the locking spring 2, a limiting mechanism for limiting the locking spring 2 is provided on the connecting ring 1. Specifically, the limiting mechanism is a convex ring provided on the connecting ring 1 or a curved portion provided on the connecting ring 1. In this embodiment, the connecting ring 1 is in a waist-shaped ring shape, and the opening 101 is located on a straight section of the connecting ring 1 close to one side of the curved portion, and the two ends of the locking spring 2 are respectively limited by the curved portions at both ends of the connecting ring 1.

[0019] Since the end of the loose section 202 of the locking spring 2 needs to bear a large force when it is compressed, in order to further enhance the restriction on the locking spring 2, a convex ring (not shown in the figure) is provided on the side of the connecting ring 1 close to the end of the loose section 202 of the locking spring 2 for limiting the loose section 202.

[0020] As a preferred solution, in order to prevent the connection line passing through the connection ring 1 from being blocked by the spring coil of the locking spring 2 when moving, the spring coil of the locking spring 2 has a smaller wire diameter than the connection line connected to the connection ring 1 .

[0021] With the help of the teachings in the foregoing description and the related drawings, a person skilled in the art will be able to think of many modifications and other embodiments of the present invention. Therefore, it is to be understood that the present invention is not limited to the specific embodiments disclosed, and modifications and other embodiments are considered to be included within the scope of the appended claims. Although specific terms are used herein, they are used only in a general and descriptive sense and not for limitation.

Claims

1. A pin, characterized in that: The invention comprises a connecting ring (1), wherein a disconnected opening (101) is provided on the connecting ring (1), and the opening (101) is not located on the force-bearing edge of the connecting ring (1); a locking spring (2) is sleeved on the connecting ring (1), and the locking spring (2) comprises a close ring tightening section (201) and a compressible and resilient loose section (202); when the locking spring (2) is in a natural state, the close ring tightening section (201) is located at the opening (101) and completely blocks the opening (101); when the locking spring (2) is compressed toward the side of the loose section (202), the close ring tightening section (201) and the opening (101) are offset in position.

2. The pin according to claim 1, characterized in that: The connecting ring (1) is provided with a limiting mechanism for limiting the position of the locking spring (2).

3. The safety pin according to claim 2, characterized in that: The limiting mechanism is a convex ring arranged on the connecting ring (1) or a curved portion arranged on the connecting ring (1).

4. The pin according to claim 1, characterized in that: The wire diameter of the spring coil of the locking spring (2) is smaller than the wire diameter of the connecting wire connected to the connecting ring (1).

5. The safety pin according to claim 1, wherein: The tight section (201) and loose section (202) of the locking spring (2) are integrally formed.

6. A safety pin according to any one of claims 1 to 5, characterized in that: The connecting ring (1) is in the shape of a waist ring, the opening (101) is located on a straight line section of the connecting ring (1) close to a curved portion on one side, and the two ends of the locking spring (2) are respectively limited by the curved portions at the two ends of the connecting ring (1).

7. The safety pin according to claim 6, characterized in that: A convex ring for limiting the position of the loose section (202) is provided on one side of the connecting ring (1) close to the end of the loose section (202) of the locking spring (2).

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