CN216895295U

CN216895295U - Anti-drop bolt

Info

Publication number: CN216895295U
Application number: CN202220654536.5U
Authority: CN
Inventors: 栾福生
Original assignee: Shandong Geyuan Intelligent Equipment Co ltd
Current assignee: Shandong Geyuan Intelligent Equipment Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-07-05
Anticipated expiration: 2032-03-24

Abstract

The utility model discloses an anti-falling bolt, and belongs to the technical field of bolts. Including bolt head, screw rod and anticreep gasket, the bolt head bottom surface evenly sets up the first latch of several, the top cover of screw rod is equipped with the anticreep gasket, the top clearance fit of anticreep gasket and screw rod, the top surface of anticreep gasket evenly sets up several second latch, the bottom surface of anticreep gasket evenly sets up the several third latch, first latch cooperatees with the second latch. According to the utility model, the bolt head, the screw and the anti-falling gasket are combined into an integral structure, so that the bolt is more convenient to use, the first latch is matched with the second latch, so that the bolt can be prevented from falling off, the third latch increases the friction force between the anti-falling gasket and the connecting surface, the bolt is further prevented from falling off, and the bolt is more stably connected.

Description

Anti-drop bolt

Technical Field

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

Background

Bolts are scarce in daily life and in industrial production and manufacture, and are also called industrial rice. Bolts are a common term for fasteners. The bolt is a tool for fastening the machine parts of the object step by utilizing the physics and mathematical principles of the inclined plane circular rotation and the friction of the object, but the machine parts of the object are only locked by the inclined plane circular rotation and the friction, and the bolt is easy to fall off because the vibration, the external force factor or the inclination angle of the thread is larger than the self-locking angle, so the bolt falls off to easily cause the damage of a mechanical structure and even cause safety accidents, and therefore, the anti-falling bolt is important for preventing the bolt from falling off a machine, and therefore, the anti-falling bolt is necessary to be provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an anti-drop bolt to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides an anticreep bolt, includes bolt head, screw rod and anticreep gasket, the bolt head bottom surface evenly sets up the first latch of several, the top cover of screw rod is equipped with the anticreep gasket, the top clearance fit of anticreep gasket and screw rod, the top surface of anticreep gasket evenly sets up several second latch, the bottom surface of anticreep gasket evenly sets up several third latch, first latch cooperatees with the second latch.

As a further scheme of the utility model: the first latch, the second latch and the third latch are all sawtooth-shaped latches.

As a further scheme of the utility model: the tooth-shaped direction of the third latch is opposite to the thread direction of the screw.

As a still further scheme of the utility model: the tooth form directions of the first latch and the second latch are opposite, and the tooth form directions of the second latch and the third latch are opposite.

As a still further scheme of the utility model: the sum of the angles of the first latch and the second latch is larger than the lead angle of the screw.

As a still further scheme of the utility model: the bolt head is a hexagonal flange bolt head or a button head or a round head or a flat truncated head or a hexagonal head or a coiled head or a truss head or a crystal round head or a flat head or a hexagon socket head.

Compared with the prior art, the utility model has the beneficial effects that: according to the bolt, the bolt head, the screw and the anti-falling gasket are combined into an integral structure, so that the bolt is more convenient to use, the first clamping tooth is matched with the second clamping tooth to prevent the bolt from falling off, the third clamping tooth increases the friction force between the anti-falling gasket and a connecting surface to further prevent the bolt from falling off, the sum of the angles of the first clamping tooth and the second clamping tooth is larger than the thread lead angle of the screw to effectively prevent the bolt from loosening, and the bolt is more stably connected.

Drawings

FIG. 1 is a front view of an anti-drop bolt;

FIG. 2 is a view from A-A of an anti-slip bolt;

FIG. 3 is a view from B-B of an anti-slip bolt;

fig. 4 is a C-C view of a run-off preventing bolt.

In the figure: 1. a bolt head; 11. a first latch; 2. a screw; 3. an anti-drop gasket; 31. a second latch; 32. and a third latch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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 making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-4, the bolt comprises a bolt head 1, a screw rod 2 and an anti-falling gasket 3, wherein a plurality of first latches 11 are uniformly arranged on the bottom surface of the bolt head 1, the anti-falling gasket 3 is sleeved on the top of the screw rod 2, the anti-falling gasket 3 is in clearance fit with the top of the screw rod 2, a plurality of second latches 31 are uniformly arranged on the top surface of the anti-falling gasket 3, a plurality of third latches 32 are uniformly arranged on the bottom surface of the anti-falling gasket 3, and the first latches 11 are matched with the second latches 31. According to the utility model, the bolt head, the screw and the anti-falling gasket are combined into an integral structure, so that the bolt is more convenient to use, the first latch 11 is matched with the second latch 31 to prevent the bolt from falling off, and the third latch 32 increases the friction force between the anti-falling gasket 3 and a connecting surface to further prevent the bolt from falling off, so that the bolt is more stably connected.

Further, the first latch 11, the second latch 31 and the third latch 32 are all sawtooth-type latches. The first latch 11, the second latch 31, and the third latch 32 of the saw-tooth type latch can increase friction force and make the first latch 11 and the second latch 31 more easily engaged.

Still further, the tooth direction of the third latch 32 is opposite to the thread direction of the screw 2. After the third latch 32 compresses tightly the object surface, when the screw rod 2 rotates reversely, the structure can increase the friction force between the third latch 32 and the connecting surface at the moment, and prevent the bolt from falling off.

Still further, the first latch 11 and the second latch 31 have opposite tooth shapes, and the second latch 31 and the third latch 32 have opposite tooth shapes. The first latch 11 and the second latch 31 can be meshed with each other to prevent falling off due to the fact that the tooth shapes of the first latch 11 and the second latch 31 are opposite, and the friction force between the third latch 32 and a connecting surface can be further enhanced due to the fact that the tooth shapes of the second latch 31 and the third latch 32 are opposite to each other to prevent the bolt from falling off.

Still further, the sum of the angles of the first latch 11 and the second latch 31 is larger than the lead angle of the screw 2. The sum of the angles of the first latch 11 and the second latch 31 is larger than the lead angle of the screw rod 2, so that bolt loosening can be effectively prevented.

In addition, the bolt head 1 is a hexagonal flange bolt head or a button head or a round head or a flat truncated head or a hexagonal head or a pan head or a truss head or a crystal round head or a flat head or an inner hexagon screw head.

It should be noted that the above embodiments are only specific and clear descriptions of technical solutions and technical features of the present application. However, to those skilled in the art, aspects or features that are part of the prior art or common general knowledge are not described in detail in the above embodiments.

In addition, the technical solutions of the present application are not limited to the above-described embodiments, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined, so that other embodiments that can be understood by those skilled in the art may be formed.

Claims

1. The utility model provides an anticreep bolt, includes bolt head (1), screw rod (2) and anticreep gasket (3), its characterized in that: bolt head (1) bottom surface evenly sets up the first latch of several (11), the top cover of screw rod (2) is equipped with anticreep gasket (3), the top clearance fit of anticreep gasket (3) and screw rod (2), the top surface of anticreep gasket (3) evenly sets up several second latch (31), the bottom surface of anticreep gasket (3) evenly sets up several third latch (32), first latch (11) cooperatees with second latch (31).

2. The anti-drop bolt according to claim 1, characterized in that: the first latch (11), the second latch (31) and the third latch (32) are all sawtooth-shaped latches.

3. The anti-drop bolt according to claim 2, characterized in that: the tooth-shaped direction of the third latch (32) is opposite to the thread direction of the screw (2).

4. The anti-drop bolt according to claim 3, characterized in that: the tooth form direction of the first latch tooth (11) is opposite to that of the second latch tooth (31), and the tooth form direction of the second latch tooth (31) is opposite to that of the third latch tooth (32).

5. The anti-drop bolt according to claim 4, characterized in that: the sum of the angles of the first latch (11) and the second latch (31) is larger than the lead angle of the screw (2).

6. The anti-drop bolt according to claim 5, characterized in that: the bolt head (1) is a hexagonal flange bolt head or a button head or a round head or a flat bottom truncated head or a hexagonal head or a pan head or a truss head or a crystal round head or a flat head or an inner hexagonal screw head.