Anti-loose dart pin convenient to assemble

Abstract

The utility model belongs to the field of sports equipment, and relates to an anti-loose dart needle convenient to assemble, which comprises a dart needle body, and is characterized in that a connecting rod is coaxially arranged at the rear end of a flange table of the dart needle body, an external thread is arranged at the rear end of the connecting rod, and a polished rod is arranged at the front end of the connecting rod; an elastic piece integrally formed with the dart pin body is arranged at the position, close to the flange table, of the polished rod, and the elastic piece is parallel to the end face of the flange table. The dart pin is scientific and reasonable in design, has the advantages of being simple in structure, convenient to assemble, anti-loose, easy to disassemble and easy to implement, and has high innovativeness.

Description

Technical Field

[0001] The utility model belongs to the field of sports equipment and relates to a dart needle, in particular to an anti-loosening dart needle which is convenient to assemble. Background Art

[0002] A dart generally consists of a dart needle and a dart barrel, and the dart needle is threadedly connected to the dart barrel. In the sport of darts, in order to prevent the dart needle from rotating loose or coming loose, a spring washer needs to be sandwiched between the dart needle and the dart barrel during assembly. However, the spring washer is small in size and is easy to lose if placed alone. In addition, athletes may easily forget to assemble the spring washer during assembly. Summary of the invention

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a dart needle which is simple in structure, easy to assemble, anti-loose and easy to disassemble and easy to implement.

[0004] The utility model solves the technical problem by adopting the following technical solutions:

[0005] An anti-loosening dart needle which is easy to assemble comprises a dart needle body, and is characterized in that a connecting rod is coaxially arranged at the rear end of a flange of the dart needle body, an external thread is arranged at the rear end of the connecting rod, the front end of the connecting rod is a smooth rod, and a spring piece which is integrally formed with the dart needle body is arranged at a position close to the flange on the smooth rod, and the spring piece is arranged parallel to the end face of the flange.

[0006] Moreover, the thickness of the spring sheet is 0.2-0.3 mm.

[0007] Moreover, the distance between the spring sheet and the flange is 0.2-0.3 mm.

[0008] The advantages and positive effects of the utility model are:

[0009] 1. This easy-to-assemble anti-loosening dart needle, when the dart needle and the dart barrel are screwed and tightened, the dart barrel squeezes the spring sheet, causing the spring sheet to deform elastically, thereby preventing the dart needle from loosening on the dart barrel. The spring sheet and the dart needle are set in one piece, avoiding the problems of lost parts, difficult storage of small parts and missing parts assembly, greatly improving assembly efficiency and assembly reliability.

[0010] 2. The utility model has a scientific and reasonable design, and has the advantages of simple structure, easy assembly, anti-loosening and easy disassembly, and easy implementation. It is a dart needle with high innovation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 for Figure 1 sectional view of .

[0013] Description of Reference Numerals

[0014] 1-external thread, 2-connecting rod, 3-spring, 4-flange. DETAILED DESCRIPTION

[0015] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0016] The invention discloses an anti-loosening dart needle which is easy to assemble, comprising a dart needle body, wherein the innovation thereof lies in that a connecting rod 2 is coaxially arranged at the rear end of a flange platform 4 of the dart needle body, an external thread 1 is arranged at the rear end of the connecting rod, the front end of the connecting rod is a smooth rod, and a spring piece 3 which is integrally formed with the dart needle body is arranged at a position close to the flange platform on the smooth rod, and the spring piece is arranged parallel to the end face of the flange platform.

[0017] The thickness of the spring sheet is 0.2-0.3 mm, which can ensure that the spring sheet can be deformed by the extrusion force.

[0018] The distance between the spring piece and the flange is 0.2-0.3 mm, which is convenient for assembly and the dimensional travel when the spring piece breaks.

[0019] The anti-loosening dart needle which is easy to assemble adopts an integrally formed structure, and a fixed spring piece is processed on the dart needle flange platform.

[0020] During assembly, the dart barrel with internal thread is rotated to screw it into the dart needle with external thread. During the tightening process of the dart needle thread, the spring piece undergoes elastic deformation to achieve the anti-loosening effect.

[0021] When the dart needle breaks accidentally, the rear end thread will loosen due to the loss of extrusion of the extrusion surface by the shrapnel. Then, with the help of a small tool, the broken needle can be taken out by reverse rotation of the thread, which facilitates the quick separation of the broken dart needle and the dart barrel.

[0022] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. An anti-loosening dart needle that is easy to assemble, comprising a dart needle body, characterized in that: A connecting rod is coaxially arranged at the rear end of the flange of the dart needle body, and an external thread is arranged at the rear end of the connecting rod. The front end of the connecting rod is a smooth rod, and a spring piece integrally formed with the dart needle body is arranged on the smooth rod near the flange, and the spring piece is arranged parallel to the end face of the flange.

2. The anti-loosening dart needle that is easy to assemble according to claim 1, characterized in that: The thickness of the spring sheet is 0.2-0.3 mm.

3. The anti-loosening dart needle that is easy to assemble according to claim 1, characterized in that: The distance between the spring sheet and the flange is 0.2-0.3 mm.

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