CN215444736U

CN215444736U - Anti-loosening bolt assembly with integrated structure

Info

Publication number: CN215444736U
Application number: CN202122193760.7U
Authority: CN
Inventors: 余磊; 李琪
Original assignee: Lhasa Yuzhixin Technology Co ltd
Current assignee: Lhasa Yuzhixin Technology Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-01-07
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses an integrated anti-loosening bolt assembly, which comprises a bolt and a gasket which are movably connected through an interlocking retaining structure, wherein the interlocking retaining structure comprises a retaining block A at the bottom of the bolt and a retaining block B at the top of the gasket, the retaining block A and the retaining block B can be completely wedged, and the linear distance between the top of the bolt and the bottom of the gasket is shortest when the retaining block A and the retaining block B are completely wedged; when the bolt and the gasket rotate relatively, the stopping block A and the stopping block B slide relatively to increase the linear distance between the top of the bolt and the bottom of the gasket gradually, a limiting structure A is arranged on the side wall of the screw rod part of the bolt, and a limiting structure B is arranged in a through hole in the middle of the gasket; the limit knot A, B matches for limiting the gasket from falling off the screw portion. The bolt and the gasket are integrally connected, the bolt and the gasket cannot fall off, the carrying is convenient, and the direction and gasket specification use errors in the installation process are avoided.

Description

Anti-loosening bolt assembly with integrated structure

Technical Field

The utility model relates to the technical field of fasteners, in particular to an integrated anti-loosening bolt assembly.

Background

Bolts are common fastener fittings, and under high frequency, large amplitude vibration or impact conditions, the bolts typically rotate relatively, resulting in loose displacement of the fastened object, i.e., fastening failure. For this reason, the search for anti-loosening fasteners has been ongoing.

The better mode of locking effect that moves at present just sets up the interlocking structure of bolt, gasket. For example, the chinese application utility model CN200420002477.5 discloses an anti-theft bolt, which sets mutually engaged wedges on the contact surface of the bolt and the gasket, so that the wedges can slide and dislocate when the bolt is loose, and still can keep the fastening state. For such bolts, the bolts and the gaskets must be matched when in use, otherwise, the wedge blocks are not matched to influence the use effect, and in the actual use process, due to the error of workers, the conditions of wrong installation direction of the gaskets, wrong specification and use of the gaskets and the like occur, so that the bolts and the gaskets need to be combined into a whole.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an integrated anti-loosening bolt assembly which integrally connects a bolt and a gasket, is convenient to carry and avoids errors in direction and gasket specification in the installation process. The specific scheme of the utility model is as follows:

an integrated anti-loosening bolt assembly comprises a bolt and a gasket which are coaxially arranged, wherein the bolt comprises a head part and a screw rod part, the screw rod part penetrates through a middle through hole of the gasket, the head part is movably connected with the gasket through an interlocking retaining structure, the interlocking retaining structure comprises a retaining block A positioned at the bottom of the head part and a retaining block B positioned at the top of the gasket, the retaining block A and the retaining block B can be completely wedged, and the vertical distance between the top of the head part and the bottom of the gasket is shortest when the retaining block A and the retaining block B are completely wedged; when the bolt and the gasket rotate relatively, the stopping block A and the stopping block B slide relatively to increase the vertical distance between the top of the head and the bottom of the gasket gradually, and the bottom of the gasket is provided with anti-slip teeth; the limit knot A, B is matched and used for limiting the gasket to fall off from the screw rod part, so that the bolt and the gasket are connected into a whole.

As an embodiment of the present invention, the limiting structure a and the limiting structure B are both ring structures, and an outer diameter of the limiting structure a is greater than an inner diameter of the limiting structure B.

As an embodiment of the present invention, after the gasket is completely wedged into the bolt, the limiting structure a is located in the middle through hole of the gasket, that is, the limiting structure a does not extend out of the gasket. Therefore, the contact between the limiting structure and the fixed object when in use can be completely avoided, and the application range of the bolt can be improved.

As an implementation mode of the utility model, when the bolt assembly is disassembled, the bolt and the gasket need to be rotated together, usually, the spanner clamps the non-return block B and the bolt head, and the non-return block B can be made to be very low in height due to the anti-theft requirement, so that the spanner cannot clamp the non-return block B, the gasket is made to be circular, the peripheral side surface of the gasket is provided with the groove, and the bolt and the gasket can be conveniently and smoothly disassembled only when a specific tool clamps the bolt and the gasket.

In one embodiment of the present invention, the grooves are distributed uniformly around the circumference.

Compared with the prior art, the method has the following advantages:

the bolt and the gasket are integrally connected, the bolt and the gasket cannot fall off, the carrying is convenient, and the direction and gasket specification use errors in the installation process are avoided.

Drawings

Fig. 1 is a schematic view of the entire structure of a loosening prevention bolt assembly of embodiment 1;

fig. 2 is a schematic view of the entire structure of the anti-loosening bolt assembly according to embodiment 1;

FIG. 3 is a schematic half-sectional view of a loosening prevention bolt assembly of embodiment 1;

FIG. 4 is a partial enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic view of a bolt structure according to embodiment 1;

fig. 6 is a schematic view of a gasket structure of embodiment 1.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.

In the description of the present invention, it is to be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "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 in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and should not be construed as limiting the present invention.

Example 1:

referring to fig. 1 to 6, an integrated anti-loosening bolt assembly includes a bolt 1 and a washer 2 coaxially disposed, where the bolt 1 is a hexagon bolt and includes a head portion 11 and a screw portion 12. The screw rod part 12 penetrates through a middle through hole of the gasket 2, the head part 11 is movably connected with the gasket 2 through an interlocking backstop structure, the interlocking backstop structure comprises a backstop block A101 positioned at the bottom of the head part 11 and a backstop block B201 positioned at the top of the gasket 2, the backstop block A101 and the backstop block B201 can be completely wedged, and the vertical distance between the top of the head part 11 and the bottom of the gasket 2 is shortest when the backstop block A101 and the backstop block B201 are completely wedged; when the bolt 1 and the gasket 2 rotate relatively, the stopping block A101 and the stopping block B201 slide relatively to increase the vertical distance between the top of the head 11 and the bottom of the gasket 2 gradually, the bottom of the gasket 2 is provided with anti-skidding teeth 202, the side wall of the screw rod part 12 is provided with a limiting structure A121, and a through hole in the middle of the gasket 2 is provided with a limiting structure B202; the limiting structure A121 and the limiting structure B202 are matched and used for limiting the gasket 2 from falling off from the screw rod part 12. So that the bolt 1 is integrated with the washer 2 while the washer 2 can rotate relative to the bolt 1.

Specifically, the limiting structure a 121 and the limiting structure B202 are both annular boss structures, and the outer diameter of the limiting structure a 121 is larger than the inner diameter of the limiting structure B202. After the gasket 2 and the bolt 1 are completely wedged, the limiting structure A121 is located in the middle through hole of the gasket 2, namely the limiting structure A121 cannot extend out of the middle through hole of the gasket 2. Therefore, the contact between the limiting structure and the fixed object when in use can be completely avoided, and the application range of the bolt can be improved.

When the bolt assembly is disassembled, the bolt and the gasket need to be rotated together, and due to the anti-theft requirement, the height of the check block B is made very low, one end of the check block B is made to be flush with the bottom surface of the gasket 2, so that the check block B201 cannot be clamped by a wrench to rotate, the gasket 2 is made to be circular, two grooves 203 are symmetrically formed in the peripheral side surface of the gasket 2, and the bolt can be disassembled smoothly only by clamping the grooves of the bolt 1 and the gasket 2 by a special tool conveniently.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiments of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An integrated anti-loosening bolt assembly comprises a bolt and a gasket which are coaxially arranged, wherein the bolt comprises a head part and a screw rod part, the screw rod part penetrates through a middle through hole of the gasket, the bolt is movably connected with the gasket through an interlocking retaining structure, the interlocking retaining structure comprises a retaining block A positioned at the bottom of the head part and a retaining block B positioned at the top of the gasket, the retaining block A and the retaining block B can be completely wedged, and the vertical distance between the top of the head part and the bottom of the gasket is shortest when the retaining block A and the retaining block B are completely wedged; when the bolt and the gasket rotate relatively, the stopping block A and the stopping block B slide relatively to increase the vertical distance between the top of the head and the bottom of the gasket gradually, and the bottom of the gasket is provided with anti-slip teeth; and the limiting structure A is matched with the limiting structure B and used for limiting the gasket to fall off from the screw rod part.

2. The integrated anti-loosening bolt assembly according to claim 1, wherein the limiting structure A and the limiting structure B are both annular structures, and the outer diameter of the limiting structure A is larger than the inner diameter of the limiting structure B.

3. The integrated anti-loosening bolt assembly according to claim 1, wherein the limiting structure A is located in a middle through hole of the gasket after the gasket is completely wedged with the bolt.

4. An integrated anti-loosening bolt assembly according to any one of claims 1 to 3, wherein the washer is circular and the peripheral side surface of the washer is provided with a groove.

5. An integrated anti-loosening bolt assembly according to claim 4, wherein the recess is plural.