CN213511590U

CN213511590U - Anti-twist bolt

Info

Publication number: CN213511590U
Application number: CN202022205100.1U
Authority: CN
Inventors: 赵晓雷
Original assignee: Suzhou Mg Ti Er Hardware Co ltd
Current assignee: Suzhou Mg Ti Er Hardware Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-06-22
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a prevent bolt of twist-off, including the bolt body, the bolt body includes nut, screw rod, hexagonal type recess one in being provided with on the nut, the degree of depth of hexagonal type recess one is half of nut thickness in, the one end that the screw rod is close to the nut is provided with hexagonal type recess two in, hexagonal type recess one communicate each other, interference fit is provided with the outer six prisms of high strength in the hexagonal type recess two, the up end of outer six prisms flushes with the bottom surface of hexagonal type recess one, the up end of outer six prisms is provided with cross recess, a plurality of strengthening ribs have evenly been arranged to the tip periphery that the screw rod is close to the nut, assurance screw rod root's intensity that can be fine, can be fine prevent the twist-off of screw rod root.

Description

Anti-twist bolt

Technical Field

The utility model relates to a connecting piece technical field, concretely relates to prevent turning round disconnected bolt.

Background

The bolt belongs to mechanical parts, and the bolt is a cylindrical threaded fastener. A fastener consisting of a nut and a screw (a cylinder with external threads) needs to be matched with the nut or a through hole with threads, and belongs to a common connecting piece. Although the existing bolts are convenient to connect and disassemble, the existing bolts usually have a problem that the existing bolts are easy to break from the root part of the connection between the screw rod and the nut, and the residual screw rod part of the bolts matched with the holes is easy to take out after the nut is broken.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned problem comprehensively, especially to the not enough that prior art exists, the utility model provides a prevent bolt of twist-off can solve above-mentioned problem comprehensively.

In order to achieve the above object, the utility model adopts the following technical means:

the utility model provides a prevent turning round disconnected bolt, includes the bolt body, the bolt body includes nut, screw rod, hexagonal type recess one in being provided with on the nut, the degree of depth of interior hexagonal type recess one is half of nut thickness, the one end that the screw rod is close to the nut is provided with interior hexagonal type recess two, interior hexagonal type recess one communicate each other, interference fit is provided with the outer hexagonal prism of high strength in interior hexagonal type recess two, the up end of outer hexagonal prism flushes with the bottom surface of hexagonal type recess one, the up end of outer hexagonal prism is provided with cross recess, a plurality of strengthening ribs have evenly been arranged to the tip periphery that the screw rod is close to the nut.

Furthermore, the screw cap and the screw rod are integrally formed.

The integrated structure has the beneficial effects that the integrated structure can be manufactured by adopting various processes, the manufacturing is more convenient, and the integral strength of the bolt is favorably improved.

Furthermore, the screw rod is provided with an external thread, and the height of the reinforcing rib is smaller than that of the external thread.

The screw thread assembling method has the beneficial effects that the influence on assembling the screw thread is reduced while the strength of the root of the screw is increased.

Furthermore, the outer hexagonal prism is made of high-strength alloy steel.

The high-strength alloy screw rod has the beneficial effects that the high-strength alloy screw rod is made of high-strength alloy materials, has high torsion resistance, and greatly improves the torsion resistance of the screw rod.

Furthermore, three fifths of the outer hexagonal prism is arranged in the screw rod, and two fifths of the outer hexagonal prism is arranged in the screw cap.

The beneficial effects are that, be favorable to the intensity of better increase nut and screw rod.

Furthermore, the reinforcing rib and the screw rod are integrally formed.

The screw rod has the beneficial effects that the screw rod is convenient and better to manufacture, and the strength of the root of the screw rod can be better increased.

Furthermore, the upper end face of the first inner hexagonal groove is provided with a chamfer structure.

The beneficial effects are that, be favorable to better cooperation hexagonal instrument to use, convenient better fastening the bolt.

The utility model has the advantages that: the utility model discloses simple structure, when specifically using, can use hexagonal instrument to carry out bolt-up work in stretching into interior hexagonal groove one, also can use the cross recess on the cross screwdriver through outer hexagonal prism to fasten the bolt, the outer hexagonal prism of high strength that sets up simultaneously, the strengthening rib can the intensity of greatly increased screw rod root, when bolt-up, on torsion can be passed to outer hexagonal prism, the outside torsion of receipt that the outer hexagonal prism of high strength can be fine, and the intensity of assurance screw rod root that can be fine, can be fine prevent the twist-off of screw rod root.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 is a schematic cross-sectional structure of the present invention;

fig. 4 is a schematic layout of the reinforcing ribs of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 4, this embodiment provides a prevent bolt of twist-off, including bolt body 1, bolt body 1 includes nut 2, screw rod 3, be provided with interior hexagonal type recess 4 on the nut 2, the degree of depth of interior hexagonal type recess 4 is half of nut 2 thickness, screw rod 3 is close to one end of nut 2 and is provided with interior hexagonal type recess two 5, interior hexagonal type recess one 4 communicate each other, interference fit is provided with the outer hexagonal prism 6 of high strength in interior hexagonal type recess two 5, the up end of outer hexagonal prism 6 flushes with the bottom surface of hexagonal type recess one 4, the up end of outer hexagonal prism 6 is provided with cross recess 7, a plurality of strengthening ribs 8 have evenly been arranged to the tip periphery that screw rod 3 is close to nut 2.

The nut 2 and the screw rod 3 are integrally formed, the integrated structure can be manufactured by various processes, the manufacturing is more convenient, and the overall strength of the bolt is improved.

Be provided with external screw thread 301 on the screw rod 3, the height that highly is less than external screw thread 301 of strengthening rib 8 when increasing screw rod root intensity, has reduced the influence when assembling the screw thread.

The outer hexagonal prism 6 is made of high-strength alloy steel, has high torsion resistance and greatly improves the torsion resistance of the screw.

Three fifths of the outer hexagonal prism 6 are arranged in the screw rod 3, and two fifths of the outer hexagonal prism 6 are arranged in the screw cap 2, so that the strength of the screw cap and the screw rod is increased better.

The reinforcing rib 8 and the screw rod 3 are integrally formed, so that the manufacturing is convenient and better, and the strength of the root of the screw rod can be better increased.

The up end of interior hexagonal type recess 4 is provided with chamfer structure 401, is favorable to better cooperation hexagonal instrument to use, and convenient better fastens the bolt.

This embodiment simple structure, during the specific use, can use hexagonal instrument to stretch into and carry out bolt-up work in interior hexagonal recess 4, also can use the cross screw sword to fasten the bolt through cross recess 7 on the outer hexagonal prism, the outer hexagonal prism 6 of the high strength that sets up simultaneously, the intensity of strengthening rib 8 can greatly increased screw rod root, when bolt-up, on torsion can pass outer hexagonal prism, the outside torsion of receipt that the outer hexagonal prism of high strength can be fine, and the intensity of assurance screw rod root that can be fine, can be fine prevent the twist-off of screw rod root.

The present invention is illustrated by way of example and not by way of limitation. It will be apparent to those skilled in the art that other variations and modifications of the present invention can be made in light of the above teachings, and it is not necessary or necessary to exhaustively enumerate all embodiments herein, and it is intended that all such obvious variations and modifications are within the scope of the present invention.

Claims

1. The anti-twist bolt is characterized by comprising a bolt body (1), wherein the bolt body (1) comprises a nut (2) and a screw (3), the nut (2) is provided with a first hexagonal socket (4), the depth of the first hexagonal socket (4) is half of the thickness of the nut (2), one end of the screw rod (3) close to the screw cap (2) is provided with a second hexagon socket groove (5), the inner hexagonal groove II (5) and the inner hexagonal groove I (4) are communicated with each other, the inner hexagonal groove II (5) is internally provided with a high-strength outer hexagonal prism (6) in an interference fit manner, the upper end surface of the outer hexagonal prism (6) is flush with the bottom surface of the hexagonal groove I (4), the upper end surface of the outer hexagonal prism (6) is provided with a cross-shaped groove (7), the periphery of the end part of the screw rod (3) close to the screw cap (2) is uniformly provided with a plurality of reinforcing ribs (8).

2. The twist-off preventing bolt according to claim 1, characterized in that the nut (2) and the threaded rod (3) are integrally formed.

3. The twist-off preventing bolt according to claim 1, characterized in that the screw (3) is provided with an external thread (301), and the height of the reinforcing rib (8) is smaller than the height of the external thread (301).

4. The anti-twist bolt according to claim 1, characterized in that said outer hexagonal prism (6) is made of high-strength alloy steel.

5. A twist-off preventing bolt according to claim 1, characterised in that three fifths of the outer hexagonal prism (6) is provided in the screw (3) and two fifths of the outer hexagonal prism (6) is provided in the nut (2).

6. The twist-off preventing bolt according to claim 1, characterized in that the reinforcing rib (8) is made integrally with the threaded rod (3).

7. The twist-off preventing bolt according to claim 1, characterized in that the upper end face of the first hexagon socket (4) is provided with a chamfer structure (401).