CN216788960U

CN216788960U - Fastener for preventing theft and loosening

Info

Publication number: CN216788960U
Application number: CN202220087934.3U
Authority: CN
Inventors: 骆永平
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-06-21
Anticipated expiration: 2032-01-13

Abstract

The utility model discloses a fastener which is anti-theft and anti-loosening, comprising an assembly body, a connecting part and a barb structure; a cavity is formed in the assembling body and matched with the fastening piece, and an opening communicated with the cavity is formed in one end of the assembling body; the connecting part is arranged on the end face of the opening, and the connecting part and the assembling body are of an integrally formed structure; the barb structure is disposed on an inner wall of the opening. The barb structure is clamped into a clearance space between the fastener and the surface of the plate, so that the fastener and the fastener can be prevented from being easily disengaged, the spike-tooth structure is embedded into the surface of the plate, the rotation resistance is increased, the fastener cannot be easily rotated, and the anti-theft, anti-loosening and anti-loosening purposes are achieved; the anti-theft anti-loosening device can be sleeved on fasteners such as a hexagon nut and a hexagon bolt, has good anti-theft and anti-loosening effects on the fasteners, and is convenient to process and manufacture and low in production and manufacturing cost.

Description

Fastener for preventing theft and loosening

Technical Field

The utility model relates to the technical field of fasteners, in particular to a fastener which is anti-theft and anti-loosening.

Background

The fastener is a mechanical part which is used for fastening connection and has extremely wide application. The fastener has wide application industries including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, dies, hydraulic pressure and the like, and various fasteners can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, instruments, supplies and the like, and are the most widely applied mechanical basic parts.

The bolt, the fastener gasket and the nut are the most commonly used fasteners, the bolt usually consists of a screw rod and a nut which are integrally connected, the screw rod is provided with external threads, and the nut matched with the bolt is internally provided with corresponding internal threads. The panel is directly fixed by the bolt and the nut, so that the risk of being stolen and dismantled exists, and although a plurality of anti-theft fasteners are disclosed in the prior art, most of the anti-theft fasteners are complex in structure and structure, and the manufacturing and the processing are not convenient enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an anti-theft and anti-loosening fastener, which aims to solve the problems in the background technology.

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

a fastener for preventing theft and loosening comprises an assembling body, a connecting part and a barb structure;

a cavity is formed in the assembling body and is matched with the fastening piece, and an opening communicated with the cavity is formed in one end of the assembling body;

the connecting part is arranged on the end face of the opening, and the connecting part and the assembling body are of an integrally formed structure;

the barb structure is disposed on an inner wall of the opening.

Preferably, the connecting part is of a spike tooth structure.

Preferably, the barb structures are wedge-shaped barbs.

Preferably, the fitting body has a cylindrical shape.

Preferably, the volume of the cavity is greater than the volume of the fastener to which it is fitted.

Preferably, the fastener further comprises a flange ring disposed on an end face of the opening.

Preferably, the cavity is of a hexagon socket cavity structure.

Compared with the prior art, the utility model has the beneficial effects that: the barb structure is clamped into a clearance space between the hexagon nut and the surface of the plate, so that the fastener and the hexagon nut can be prevented from being easily disengaged, the spike-tooth structure is embedded into the surface of the plate, the rotation resistance is increased, the fastener cannot be easily rotated, and the purposes of preventing theft and detachment and loosening are achieved; the anti-theft anti-loosening fastener is simple and reasonable in structural design, has good anti-theft and anti-loosening effects on the fastener, and is convenient to manufacture and process integrally.

Drawings

FIG. 1 is a perspective view of an embodiment 1 of an anti-tamper, anti-release fastener;

FIG. 2 is a side view, partially in section, of an embodiment 1 of an anti-tamper, anti-release fastener;

FIG. 3 is a perspective view of the fastener of embodiment 1 of an anti-tamper, anti-release fastener;

FIG. 4 is a perspective view of the assembly of embodiment 2 of an anti-tamper, anti-release fastener;

FIG. 5 is a side view, partially in section, of embodiment 2 of an anti-tamper, anti-release fastener;

FIG. 6 is a perspective view of the fastener of embodiment 2 of an anti-tamper, anti-release fastener;

FIG. 7 is a perspective view of the assembly of embodiment 3 of an anti-tamper, anti-release fastener;

FIG. 8 is a side view of an embodiment 3 of an anti-tamper, anti-release fastener.

In the figure: 100-plate, 1-bolt, 11-nut, 12-screw, 2-fastener, 21-assembly body, 22-flange ring, 23-connecting part, 24-barb structure, 25-through hole, 3-hexagon nut and 4-fastener gasket.

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 to 3, a fastener 2 for preventing theft and loosening includes an assembly body 21, a connecting portion 23, and a barb structure 24;

a cavity is formed in the assembling body 21 and is matched with the fastener, an opening communicated with the cavity is formed in one end of the assembling body 21, and a through hole 25 through which the screw 12 penetrates is formed in the other end of the assembling body 21; the fastener in this embodiment is specifically a hexagon nut 3, but nuts of other structures may be adopted.

The connecting part 23 is arranged on the end surface of the opening, and the connecting part 23 and the assembling body 21 are of an integrally formed structure;

the barb structures 24 are disposed on the inner wall of the opening. In the present embodiment, the connecting portion 23 is embodied as a spike structure, and it is obvious that other embedding structures capable of embedding into the surface of the plate 100 can be adopted.

As shown in fig. 1-3, two sheets of plates 100 are fixed through a bolt 1 and a hexagon nut 3, a fastener gasket 4 is arranged between the hexagon nut 3 and the surface of the plate 100, the outer diameter of the fastener gasket 4 is smaller than the outer dimension of the hexagon nut 3, so that a clearance space is formed between the hexagon nut 3 and the surface of the plate 100, the hexagon nut 3 is sleeved with a fastener 2 by using a pneumatic tool, the barb structure 24 is clamped into the clearance space, and meanwhile, the nail tooth structure is embedded into the surface of the plate 100. The barb structure 24 is clamped into a clearance space between the hexagonal nut 3 and the surface of the plate 100, so that the fastener 2 and the hexagonal nut 3 can be prevented from being easily disengaged, the nail tooth structure is embedded into the surface of the plate 100, the rotating resistance is increased, the fastener 2 cannot be easily rotated, and the purposes of preventing theft and detachment and loosening are achieved.

In the present embodiment, the barb structure 24 is a wedge-shaped barb, which is convenient to be inserted into a clearance space between the hexagon nut 3 and the surface of the plate 100.

In this embodiment, the assembly body 21 is cylindrical, so that the fastener 2 is not convenient to rotate by driving a foreign object, thereby achieving the purpose of preventing theft and loosening.

In this embodiment, it is obvious that the volume of the cavity needs to be larger than the volume of the fastener (hexagonal nut 3) to be fitted thereto. The cavity can be in a structure of an inner hexagonal groove, and can be sleeved on fasteners such as an outer hexagonal nut and an outer hexagonal bolt.

Example 2: referring to fig. 4 to 6, a fastener 2 for preventing theft and detachment and loosening is different from embodiment 1 in that the fastener further includes a flange ring 22, the flange ring 22 is disposed on an end surface of the opening, and the connecting portion 23 is specifically disposed on the end surface of the flange ring 22, so that the structural design is more reasonable.

Example 3: referring to fig. 7 to 8, a fastener for preventing theft and loosening differs from embodiment 2 in that two fastener fasteners 2 are provided, one of the fastener fasteners is sleeved on a hexagon nut 3 in the manner of embodiment 1, and the other fastener can be sleeved on a nut 11 of a bolt 1 in the same manner, obviously, a fastener gasket 4 can be provided between the nut 11 and the surface of a plate 100, and the outer diameter of the fastener gasket 4 is smaller than the outer dimension of the nut 11, so that a gap space is also provided between the nut 11 and the surface of the plate 100, and a barb structure 24 is clamped into the gap space, and meanwhile, a nail tooth structure is embedded into the surface of the plate 100 on the left side, so that the theft and loosening prevention function of the nut 11 can be achieved.

In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only terms of relationships determined for convenience of describing structural relationships of the parts or elements of the present invention, and are not intended to refer to any parts or elements of the present invention, and are not to be construed as limiting the present invention.

Claims

1. The utility model provides a fastener that locking was taken off is torn open in theftproof which characterized in that: the fastener (2) comprises an assembling body (21), a connecting part (23) and a barb structure (24);

a cavity is formed in the assembling body (21), the cavity is matched with the fastening piece, and an opening communicated with the cavity is formed in one end of the assembling body (21);

the connecting part (23) is arranged on the end face of the opening, and the connecting part (23) and the assembling body (21) are of an integrally formed structure;

the barb structure (24) is disposed on an inner wall of the opening.

2. The fastener clip of claim 1, wherein: the connecting part (23) is of a spike-tooth structure.

3. The fastener clip of claim 1, wherein: the barb structure (24) is a wedge-shaped barb.

4. The fastener clip of claim 1, wherein: the assembly body (21) is cylindrical in shape.

5. The fastener clip of claim 1, wherein: the volume of the cavity is larger than the volume of the fastener matched with the cavity.

6. The fastener clip of claim 1, wherein: the fastener (2) further comprises a flange ring (22), and the flange ring (22) is arranged on the end face of the opening.

7. The fastener clip of claim 1, wherein: the cavity adopts an inner hexagonal groove cavity structure.