Flat head pin shaft structure

Abstract

The utility model discloses a flat head pin shaft structure which comprises a pin rod, a nut, a flat head and a pin hole, one end of the pin rod is sleeved with the nut, the nut penetrates through the flat head, the outer side of the pin rod is sleeved with an extrusion gasket, and an extrusion spring is arranged between the extrusion gasket and the nut. According to the novel flat head pin shaft, the compactness of the flat head pin shaft structure in the butt joint hole can be improved, shaking is reduced, and the novel flat head pin shaft is suitable for wide application and popularization.

Description

Technical Field

[0001] This utility model relates to the field of pin technology, and in particular to a flat-head pin structure. Background Technology

[0002] A pin is a standardized fastener that can be used for static fixed connection or for relative movement with the connected parts. It is mainly used at the hinge joint of two parts to form a hinge connection. Pins are usually locked with cotter pins, which are reliable and easy to disassemble. Flat-head pins are one type of pin.

[0003] Patent No. CN206563024U discloses a pin that solves the problem that workers must use tools to disassemble the pin. The key technical point is that a ring is hinged to the bottom of the pin tail, and a groove for placing the ring is provided at the bottom of the pin tail. The pin of this utility model is convenient for workers to disassemble the pin directly without the need for tools.

[0004] Existing flat-head pins have the following drawbacks: 1. They cannot improve the compactness of the flat-head pin structure within the mating hole and reduce wobble. Therefore, we propose a new flat-head pin structure. Summary of the Invention

[0005] The main purpose of this utility model is to provide a flat-head pin structure, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A flat-head pin structure includes a pin rod, a nut, a flat head, and a pin hole. One end of the pin rod is fitted with a nut that passes through the flat head. A compression washer is fitted on the outside of the pin rod, and a compression spring is provided between the compression washer and the nut.

[0008] Furthermore, one end of the pin is provided with an external thread corresponding to the internal thread of the nut. Tightening the nut adjusts the tension of the compression spring to meet different usage requirements.

[0009] Furthermore, a pin hole is provided at the other end of the pin.

[0010] Furthermore, the compression spring is sleeved on the outside of the pin, and the compression spring compresses the compression pad to compress the mating hole, thereby improving the compactness of the flat-head pin structure in the mating hole and reducing shaking.

[0011] Furthermore, both the pin and the nut are made of stainless steel.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model discloses a flat-head pin structure in which a pin is inserted into the mating hole of the mating block, and an iron strip passes through the pin hole for limiting the position.

[0014] 2. This utility model discloses a flat-head pin structure, which uses a compression spring to compress a compression pad to compress the mating hole, thereby improving the compactness of the flat-head pin structure within the mating hole, reducing wobbling, improving the stability of the mating point, and adjusting the tightness of the compression spring by tightening the nut to meet different usage requirements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a flat-head pin structure according to the present invention.

[0016] Figure 2 This is a bottom view of a flat-head pin structure according to the present invention.

[0017] Figure 3 This is a schematic diagram of the external thread structure of a flat-head pin structure according to the present invention.

[0018] In the diagram: 1. Pin hole; 2. Pin rod; 3. Compression washer; 4. Compression spring; 5. Nut; 6. Flat head; 7. External thread. Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figure 1-3 As shown, a flat-head pin structure includes a pin 2, a nut 5, a flat head 6, and a pin hole 1. One end of the pin 2 is fitted with a nut 5, which passes through the flat head 6. A compression washer 3 is fitted on the outside of the pin 2, and a compression spring 4 is provided between the compression washer 3 and the nut 5.

[0021] The pin 2 has an external thread 7 on one end of its outer periphery that corresponds to the internal thread of the nut 5.

[0022] In this embodiment, as shown... Figure 1 , 3 As shown, tightening the nut 5 adjusts the tightness of the compression spring 4 to meet different usage requirements.

[0023] The other end of the pin 2 is provided with a pin hole 1.

[0024] In this embodiment, as shown... Figure 1 As shown, an iron strip is inserted through the pin hole 1 for limiting.

[0025] The compression spring 4 is sleeved on the outside of the pin 2.

[0026] In this embodiment, as shown... Figure 1 As shown, the compression spring 4 is used to compress the compression pad 3, which in turn compresses the mating hole, thereby improving the compactness of the flat-head pin structure within the mating hole and reducing wobbling.

[0027] Both the pin 2 and the nut 5 are made of stainless steel.

[0028] In this embodiment, as shown... Figure 1 As shown, stainless steel is not easy to rust, has high strength, and is durable.

[0029] It should be noted that this utility model is a flat-head pin structure. During operation, the pin 2 is inserted into the mating hole of the mating block, and an iron strip is passed through the pin hole 1 for limiting. The compression spring 4 is used to compress the compression pad 3 to compress the mating hole, thereby improving the compactness of the flat-head pin structure in the mating hole, reducing shaking, and improving the stability of the mating point. The tightness of the compression spring 4 can be adjusted by tightening the nut 5 to meet different usage requirements.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flat-head pin structure, comprising a pin (2), a nut (5), a flat head (6), and a pin hole (1), characterized in that: One end of the pin (2) is fitted with a nut (5) and the nut (5) passes through the flat head (6). A compression washer (3) is fitted on the outside of the pin (2) and a compression spring (4) is provided between the compression washer (3) and the nut (5).

2. The flat-head pin structure according to claim 1, characterized in that: One end of the pin (2) is provided with an external thread (7) corresponding to the internal thread of the nut (5).

3. The flat-head pin structure according to claim 1, characterized in that: The other end of the pin (2) is provided with a pin hole (1).

4. The flat-head pin structure according to claim 1, characterized in that: The compression spring (4) is sleeved on the outside of the pin (2).

5. The flat-head pin structure according to claim 1, characterized in that: Both the pin (2) and the nut (5) are made of stainless steel.

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