Bolt anti-rotation positioning device

Abstract

The utility model discloses a bolt anti-rotation positioning device which comprises a structural body and a bolt, the vertical section of the structural body is in a C shape, a first round through hole is formed in a C-shaped opening of the structural body, the bolt is inserted into the first round through hole, and a bolt head of the bolt is located in the C-shaped opening of the structural body. The stud of the bolt is further sleeved with a special-shaped adjusting folding piece with the vertical section in a C shape, and the bolt head of the bolt is located in a C-shaped opening of the special-shaped adjusting folding piece. The top side wall and the bottom side wall of a bolt head of the bolt abut against the inner top wall and the inner bottom wall of the special-shaped adjusting folding piece correspondingly. A second circular through hole is formed in the rear side wall of the interior of the special-shaped adjusting folding piece, and the diameter of the second circular through hole is 1.2 times that of the bolt. The bolt has the advantages that the bolt can be conveniently fixed, the position of the special-shaped adjusting folding piece can be conveniently adjusted, the flexibility is high, the bolt head can be protected, and the service life can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to a bolt anti-rotation positioning device. Background Art

[0002] In daily production and life, it is often necessary to tighten bolts with the bolt heads facing downward. When the space where the bolt heads are located is small or buried, the nut can only be tightened, but the bolts will rotate at this time and tightening operations cannot be performed.

[0003] In the prior art, the application number is CN200820116229.1, and the application name is a bolt anti-rotation positioning device. In the technical solution recorded therein, since the bolt head is stuck in the groove, when the nut rotates, the bolt head is restricted by the groove and will not rotate with the nut, thereby improving convenience in situations where the bolt head is facing downward and the space in which the bolt head is located is narrow or buried, making it difficult to perform tightening operations from the bolt head.

[0004] However, there are still some shortcomings in the actual use process, such as poor flexibility, inconvenience in adjusting the position of the bolt, and inconvenience in protecting the bolt head, which affects the service life of the bolt. For this reason, we propose a new type of bolt anti-rotation positioning device. Utility Model Content

[0005] The utility model aims to provide a bolt anti-rotation positioning device, which has the advantages of being convenient for fixing the bolt and convenient for adjusting the position of the special-shaped adjustment flap, having high flexibility and being able to protect the bolt head, thereby helping to extend the service life.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A bolt anti-rotation positioning device comprises a structure and a bolt, wherein the vertical section of the structure is in a "C" shape, a first circular through hole is provided in the "C"-shaped opening of the structure, the bolt is inserted into the first circular through hole, the bolt head of the bolt is located in the "C"-shaped opening of the structure, a special-shaped adjustment flap with a vertical section in a "C" shape is sleeved on the stud of the bolt, and the bolt head of the bolt is located in the "C"-shaped opening of the special-shaped adjustment flap;

[0008] The bolt is a hexagonal bolt, and the top side wall and the bottom side wall of the bolt head of the bolt are respectively against the inner top wall and the inner bottom wall of the special-shaped adjustment flap;

[0009] A second circular through hole is formed on the inner rear side wall of the special-shaped adjusting flap, and the diameter of the second circular through hole is 1.2 times the diameter of the bolt.

[0010] The preferred solutions are as follows:

[0011] Preferably, there is a gap of 1-2 mm between the top of the special-shaped adjustment flap and the inner top wall of the "C"-shaped opening of the structure, and there is a gap of 1-2 mm between the bottom of the special-shaped adjustment flap and the inner bottom wall of the "C"-shaped opening of the structure.

[0012] Preferably: there is a gap of 1-2mm between the top side of the bolt head of the bolt and the inner top wall of the special-shaped adjusting flap, there is a gap of 1-2mm between the bottom side of the bolt head of the bolt and the inner bottom wall of the special-shaped adjusting flap, and the rear side of the bolt head of the bolt abuts against the inner rear side wall of the special-shaped adjusting flap.

[0013] Preferably: a nut is threadedly connected to the stud of the bolt.

[0014] In summary, the utility model has the following beneficial effects:

[0015] 1. By providing a second circular through hole on the special-shaped adjusting flap, it is convenient to adjust the position of the special-shaped adjusting flap according to the bolt, so that the top side wall of the bolt head of the bolt and the inner top wall, the bottom side wall of the bolt head of the bolt and the special-shaped adjusting flap and the inner bottom wall are abutted, which has the advantages of high flexibility and strong practicality;

[0016] 2. When the nut rotates, the bolt head is restricted by the special-shaped adjusting flap and will not rotate with the nut, thereby improving convenience for situations where the bolt head is facing downward and the space where the bolt head is located is narrow or buried, making it difficult to tighten from the bolt head. At the same time, it can also protect the bolt head and help extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the embodiment;

[0018] Figure 2 It is an exploded view of the overall structural shape of the embodiment.

[0019] In the figure, 1, structure; 2, bolt; 3, special-shaped adjustment flap; 4, nut. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] The same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings.

[0022] A bolt 2 anti-rotation positioning device, such as Figure 1-Figure 2As shown, it includes a structure 1 and a bolt 2. The vertical section of the structure 1 is "C"-shaped. The structure 1 is a square block. A first circular through hole is opened in the "C"-shaped opening of the structure 1. The bolt 2 is inserted into the first circular through hole. The bolt head of the bolt 2 is located in the "C"-shaped opening of the structure 1. The stud of the bolt 2 is also provided with a special-shaped adjusting flap 3 with a vertical section of "C"-shaped. The bolt head of the bolt 2 is located in the "C"-shaped opening of the special-shaped adjusting flap 3.

[0023] A second circular through hole is formed on the inner rear side wall of the special-shaped adjusting flap 3 , and the diameter of the second circular through hole is 1.2 times the diameter of the bolt 2 .

[0024] The bolt 2 is a hexagonal bolt, and the top side wall and the bottom side wall of the bolt head of the bolt 2 are respectively against the inner top wall and the inner bottom wall of the special-shaped adjustment flap 3.

[0025] There is a gap of 1-2 mm between the top of the special-shaped adjustment flap 3 and the inner top wall of the "C"-shaped opening of the structure 1, and there is a gap of 1-2 mm between the bottom of the special-shaped adjustment flap 3 and the inner bottom wall of the "C"-shaped opening of the structure 1.

[0026] There is a gap of 1-2mm between the top side of the bolt head of the bolt 2 and the inner top wall of the special-shaped adjustment flap 3, there is a gap of 1-2mm between the bottom side of the bolt head of the bolt 2 and the inner bottom wall of the special-shaped adjustment flap 3, and the rear side of the bolt head of the bolt 2 abuts against the inner rear side wall of the special-shaped adjustment flap 3.

[0027] A nut 4 is threadedly connected to the stud of the bolt 2 .

[0028] Specific implementation process:

[0029] When the nut 4 rotates, the bolt head is restricted by the special-shaped adjusting flap 3 and will not rotate with the nut 4. After adjustment, the special-shaped adjusting flap 3 abuts against at least one side of the "C"-shaped opening of the structure 1, thereby improving convenience for situations where the bolt head is facing downward and the space where the bolt head is located is narrow or buried, making it difficult to tighten the bolt head. The special-shaped adjusting flap 3 can also protect the bolt head, helping to extend its service life.

[0030] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A bolt anti-rotation positioning device, comprising a structure (1) and a bolt (2), wherein the vertical section of the structure (1) is in a "C" shape, a first circular through hole is provided in the "C"-shaped opening of the structure (1), the bolt (2) is inserted into the first circular through hole, and the bolt head of the bolt (2) is located in the "C"-shaped opening of the structure (1), characterized in that: The stud of the bolt (2) is also sleeved with a special-shaped adjusting folding piece (3) with a vertical cross-section in the shape of a "C", and the bolt head of the bolt (2) is located in the "C"-shaped opening of the special-shaped adjusting folding piece (3); The bolt (2) is a hexagonal bolt, and the top side wall and the bottom side wall of the bolt head of the bolt (2) are respectively against the inner top wall and the inner bottom wall of the special-shaped adjustment flap (3); A second circular through hole is formed on the inner rear side wall of the special-shaped adjustment flap (3), and the diameter of the second circular through hole is 1.2 times the diameter of the bolt (2).

2. A bolt anti-rotation positioning device according to claim 1, characterized in that: There is a gap of 1-2 mm between the top of the special-shaped adjustment flap (3) and the inner top wall of the "C"-shaped opening of the structure (1), and there is a gap of 1-2 mm between the bottom of the special-shaped adjustment flap (3) and the inner bottom wall of the "C"-shaped opening of the structure (1).

3. A bolt anti-rotation positioning device according to claim 1, characterized in that: There is a gap of 1-2 mm between the top side of the bolt head of the bolt (2) and the inner top wall of the special-shaped adjusting flap (3), there is a gap of 1-2 mm between the bottom side of the bolt head of the bolt (2) and the inner bottom wall of the special-shaped adjusting flap (3), and the rear side of the bolt head of the bolt (2) abuts against the inner rear side wall of the special-shaped adjusting flap (3).

4. The bolt anti-rotation positioning device according to claim 1, characterized in that: A nut (4) is threadedly connected to the stud of the bolt (12).

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