CN216768048U

CN216768048U - Anti-drop bolt

Info

Publication number: CN216768048U
Application number: CN202122316566.3U
Authority: CN
Inventors: 应焕祥; 芦国军
Original assignee: Ningbo Fate Fastener Co ltd
Current assignee: Ningbo Fate Fastener Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-06-17
Anticipated expiration: 2031-09-24

Abstract

The utility model relates to the field of fasteners, in particular to an anti-falling bolt. The utility model provides an anti-drop bolt, includes bolt cap, bolt post and nut, the bolt cap sets up the one end at the bolt post, the nut can cooperate with the bolt post, the one end that the bolt cap was kept away from to the bolt post is provided with a plurality of arcs, be provided with the recess on the nut, the recess can cooperate with the arc, works as behind nut and the cooperation of bolt post, the accessible will the arc is crooked to cooperate with the recess. The bolt has improved present bolt in the use, receives service environment's influence, takes place the influence of shake or stress, easily makes the nut take place to become flexible and drop, and the nut drops and easily causes breaking away from of bolt, makes the fastener lose fixed effect to in the use, owing to can receive the influence of environment such as wind and rain, and then take place to corrode, the fixed strength of fastener this moment can reduce, and then the condition that the fastener drops takes place.

Description

Anti-drop bolt

Technical Field

The utility model relates to the field of fasteners, in particular to an anti-falling bolt.

Background

The bolt is a mechanical part and is a cylindrical threaded fastener matched with a nut. A fastener consisting of a head and a screw is matched with a nut and used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection.

The bolts may be classified into hexagonal head bolts, round head bolts, square head bolts, countersunk head bolts, and the like according to the shape of the head.

The inventor thinks that the influence of shake or stress takes place for present bolt in the use, receives service environment's influence, easily makes the nut take place to become flexible and drop, and the drop of nut easily causes breaking away from of bolt, makes the fastener lose fixed effect to in the use, owing to can receive the influence of environment such as wind and rain, and then take place to corrode, the fixed strength of fastener this moment can reduce, and then the condition that the fastener drops takes place.

SUMMERY OF THE UTILITY MODEL

In order to improve among the correlation technique, present bolt is in the use, receives service environment's influence, takes place the influence of shake or stress, easily make the nut take place to become flexible and drop, the drop of nut easily causes breaking away from of bolt, make the fastener lose fixed effect, and in the use, owing to can receive the influence of environment such as wind and rain, and then take place to corrode, the fixed strength of fastener this moment can reduce, and then the condition that takes place the fastener and drop, this application provides an anti-drop bolt.

The application provides an anti-drop bolt adopts following technical scheme:

the utility model provides an anti-drop bolt, includes bolt cap, bolt post and nut, the bolt cap sets up the one end at the bolt post, the nut can cooperate with the bolt post, the one end that the bolt cap was kept away from to the bolt post is provided with a plurality of arcs, be provided with the recess on the nut, the recess can cooperate with the arc, works as behind nut and the cooperation of bolt post, the accessible will the arc is crooked to cooperate with the recess.

Optionally, a fixing piece is arranged at one end of the nut provided with the groove, and a thread matched with the nut is arranged on the fixing piece.

Optionally, a gasket is sleeved on the bolt column.

Optionally, the bolt column is provided with a thread matched with the nut.

Optionally, a plurality of arc-shaped plates are matched with each other to form a cylinder, and the arc-shaped plates are provided with threads the same as the bolt columns.

Optionally, the bolt cap is a hexagonal prism.

Optionally, the fixing piece includes a fixing column and a fixing block, the fixing column is cylindrical, and a thread matched with the nut is arranged on the fixing column.

Optionally, the size and shape of the fixing block are the same as those of the nut.

By adopting the technical scheme, the arc-shaped plates are provided with the threads which are the same as the bolt columns, and the arc-shaped plates are matched with each other to form a cylinder shape, so that the nut can be randomly connected on the stud through the arc-shaped plates, the arc-shaped plates are bent through external force to be arranged in the grooves formed in the nut in a penetrating way, the structure can effectively prevent the nut from falling off, after the fixing part is fixed with the nut, the situation that the nut falls off due to deformation of the arc-shaped plates can be prevented, the anti-falling structure of the bolt is reinforced, the problem that the existing bolt is influenced by the use environment in the use process, shakes or is influenced by stress, the nut is easy to loosen and fall off, the bolt is easy to break away due to falling off of the nut, the fastener loses the fixing effect, and in the use process, the fastener is corroded due to the influence of the environment such as wind, rain and the like, and the fixing strength of the fastener at the moment can be reduced, and the fastener may come off.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or the prior art will be discussed below, it is obvious that the technical solutions described in conjunction with the drawings are only some embodiments of the present invention, and for those skilled in the art, other embodiments and drawings can be obtained according to the embodiments shown in the drawings without creative efforts.

Fig. 1 is a front view of an anti-drop bolt securing member before installation.

Fig. 2 is a perspective view of the drop-off preventive bolt securing member before installation.

Fig. 3 is a perspective view of an anti-drop bolt securing member after installation.

Fig. 4 is a front view of the anti-drop bolt securing member after being installed.

Fig. 5 is a perspective view of the fixing member.

In the figure: 1. a bolt cap; 2. a bolt column; 3. a nut; 4. an arc-shaped plate; 5. a groove; 6. a gasket; 7. a fixing member; 71. fixing a column; 72. and (5) fixing blocks.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without the need for creative efforts, are within the scope of the present invention.

An embodiment of the present invention provides an anti-drop bolt.

Referring to fig. 1 and 2, an anti-drop bolt, includes bolt cap 1, bolt post 2 and nut 3, and bolt cap 1 sets up the one end at bolt post 2, and nut 3 can cooperate its characterized in that with bolt post 2: one end of the bolt column 2, which is far away from the bolt cap 1, is provided with a plurality of arc-shaped plates 4, and the nut 3 is provided with a groove 5.

Referring to fig. 3 and 4, the recess 5 may be fitted with the arc-shaped plate 4, and after the nut 3 is fitted with the bolt stub 2, the recess 5 may be fitted by bending the arc-shaped plate 4. One end of the nut 3 provided with the groove 5 is provided with a fixing piece 7, and the fixing piece 7 is provided with a thread matched with the nut 3. The bolt column 2 is sleeved with a gasket 6. The bolt column 2 is provided with a thread matched with the nut 3. The arc plates 4 are matched with each other to form a cylinder, and the arc plates 4 are provided with threads the same as the bolt columns 2. The bolt cap 1 is a hexagonal prism.

Referring to fig. 5, the fixing member 7 includes a fixing post 71 and a fixing block 72, the fixing post 71 is cylindrical, and a screw thread matching with the nut 3 is provided on the fixing post 71. The fixing block 72 has the same size and shape as the nut 3.

During the use, earlier with bolt post 2 and arc 4 pass the hole that needs the fastener to fix, install nut 3 on the cylinder that the arc board constitutes through the screw thread again, and then cooperate nut 3 on bolt post 2 through the screw thread, 4 bending deformation with arc through external force this moment, make it wear to establish in recess 5 that sets up on nut 3, and then make its and nut 3 cooperation and then will fix on nut 3 through the screw thread that sets up on the mounting 7, can prevent that arc 4 from taking place deformation and the condition that leads to nut 3 to drop, the anti-drop structure of bolt has been strengthened, current bolt is in the use improved, receive service environment's influence, take place the influence of shake or stress, easily make nut 3 take place not hard up and drop, nut 3 drops and easily causes breaking away from of bolt, make the condition that the fastener loses the effect of fixing.

Claims

1. The utility model provides an anti-drop bolt, includes bolt cap (1), bolt post (2) and nut (3), bolt cap (1) sets up the one end at bolt post (2), nut (3) can cooperate its characterized in that with bolt post (2): one end of the bolt column (2) far away from the bolt cap (1) is provided with a plurality of arc-shaped plates (4), a groove (5) is formed in the nut (3), the groove (5) can be matched with the arc-shaped plates (4), and when the nut (3) is matched with the bolt column (2), the arc-shaped plates (4) are bent to be matched with the groove (5) through the matching of the nut (3) and the bolt column.

2. A drop-preventing bolt according to claim 1, wherein: the nut (3) is provided with the one end of recess (5) and is provided with mounting (7), be provided with on mounting (7) with nut (3) complex screw thread.

3. A drop-preventing bolt according to claim 1, wherein: and a gasket (6) is sleeved on the bolt column (2).

4. A drop-preventing bolt according to claim 1, wherein: and the bolt column (2) is provided with a thread matched with the nut (3).

5. A drop-preventing bolt according to claim 4, wherein: a plurality of arc plates (4) are matched with each other to form a cylinder, and the arc plates (4) are provided with threads the same as the bolt columns (2).

6. A drop-preventing bolt according to claim 1, wherein: the bolt cap (1) is a hexagonal prism.

7. A drop-preventing bolt according to claim 2, wherein: the fixing piece (7) comprises a fixing column (71) and a fixing block (72), the fixing column (71) is cylindrical, and threads matched with the nut (3) are arranged on the fixing column (71).

8. A drop-preventing bolt according to claim 7, wherein: the size and the shape of the fixing block (72) are the same as those of the nut (3).