CN216077921U - Anti-loosening combined fastener - Google Patents
Anti-loosening combined fastener Download PDFInfo
- Publication number
- CN216077921U CN216077921U CN202121785537.5U CN202121785537U CN216077921U CN 216077921 U CN216077921 U CN 216077921U CN 202121785537 U CN202121785537 U CN 202121785537U CN 216077921 U CN216077921 U CN 216077921U
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- China
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- gasket
- nut
- bolt
- positioning groove
- loosening
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Abstract
A loosening-preventing combined fastener comprises a bolt, a nut and a gasket, wherein the nut is screwed on the bolt; the gasket is positioned above the nut, the gasket is sleeved outside the bolt, and the gasket is connected with the nut through a screw; at least one positioning groove is formed on the periphery of the stud of the bolt; the middle of the gasket is provided with a through hole, and the edge of the through hole is connected with a bulge matched with the positioning groove. Compared with the prior art, according to the anti-loosening combined fastener, the gasket and the bolt are clamped with the positioning groove through the protrusion to prevent the gasket from rotating, and the nut and the gasket are connected into a whole through the screw, so that the nut cannot rotate after being screwed, and the nut and the bolt are prevented from loosening.
Description
Technical Field
The utility model relates to the field of fasteners, in particular to an anti-loosening combined fastener.
Background
The outer side of the bolt is provided with an external thread, the middle of the nut is provided with an internal thread hole, the internal thread hole is connected with the external thread to fix a workpiece, and the nut is easy to loosen with the bolt if the workpiece is in a vibrating working environment for a long time due to the clearance at the mutual connection part of the threads.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a loosening-preventing combined fastener aiming at the defects of the prior art.
In order to solve the technical problems, the utility model adopts the technical scheme that:
a loosening-preventing combined fastener comprises a bolt, a nut and a gasket, wherein the nut is screwed on the bolt; the gasket is positioned above the nut, the gasket is sleeved outside the bolt, and the gasket is connected with the nut through a screw; at least one positioning groove is formed on the periphery of the stud of the bolt; the middle of the gasket is provided with a through hole, and the edge of the through hole is connected with a bulge matched with the positioning groove.
Furthermore, a plurality of threaded holes are processed on the surface of the nut around the center.
Furthermore, a plurality of arc-shaped grooves are machined on the surface of the gasket around the center.
Compared with the prior art, according to the anti-loosening combined fastener, the gasket and the bolt are clamped with the positioning groove through the protrusion to prevent the gasket from rotating, and the nut and the gasket are connected into a whole through the screw, so that the nut cannot rotate after being screwed, and the nut and the bolt are prevented from loosening.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the nut of the present invention;
FIG. 3 is a schematic view of the construction of the gasket of the present invention;
the bolt comprises a bolt body 1, a bolt body 2, a nut body 3, a gasket body 4, a screw 5, a positioning groove 6, a protrusion 7, a threaded hole 8 and an arc-shaped groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below.
As shown in fig. 1 to 3, the anti-loosening combined fastener comprises a bolt 1, a nut 2 and a gasket 3, wherein the nut 2 is screwed on the bolt 1; the gasket 3 is positioned above the nut 2, the gasket 3 is sleeved outside the bolt 1, and the gasket 3 and the nut 2 are connected with each other through a screw 4; four positioning grooves 5 are formed in the periphery of the stud of the bolt 1, and the positioning grooves 5 are uniformly distributed around the center of the stud; the middle of the gasket 3 is provided with a through hole, and the edge of the through hole is connected with a bulge 6 matched with the positioning groove 5.
Four threaded holes 7 are machined in the surface of the nut 2 around the center; four arc-shaped grooves 8 are machined on the surface of the gasket 3 around the center.
When the combined fastener is used, the bolt 1 penetrates through the holes of the workpiece I and the workpiece II, the nut 2 is screwed on the bolt 1, the gasket 3 is sleeved on the outer side of the stud of the bolt 1, the bulge 6 in the center of the gasket 3 is clamped in the positioning groove 5 on the outer side of the stud, and then the gasket 3 and the nut are locked through the screw 4.
The present invention is not limited to the embodiments described above, and those skilled in the art may make modifications or changes within the scope of the disclosure without departing from the spirit of the present invention, so that the scope of the present invention is defined by the appended claims.
Claims (3)
1. The utility model provides a locking combined fastener that moves, includes bolt, nut and gasket, its characterized in that: the nut is screwed on the bolt; the gasket is positioned above the nut, the gasket is sleeved outside the bolt, and the gasket is connected with the nut through a screw; at least one positioning groove is formed on the periphery of the stud of the bolt; the middle of the gasket is provided with a through hole, and the edge of the through hole is connected with a bulge matched with the positioning groove.
2. A locking combination fastener as claimed in claim 1, wherein: and a plurality of threaded holes are processed on the surface of the nut around the center.
3. A locking combination fastener as claimed in claim 1, wherein: a plurality of arc-shaped open grooves are machined on the surface of the gasket around the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121785537.5U CN216077921U (en) | 2021-08-02 | 2021-08-02 | Anti-loosening combined fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121785537.5U CN216077921U (en) | 2021-08-02 | 2021-08-02 | Anti-loosening combined fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216077921U true CN216077921U (en) | 2022-03-18 |
Family
ID=80667372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121785537.5U Active CN216077921U (en) | 2021-08-02 | 2021-08-02 | Anti-loosening combined fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216077921U (en) |
-
2021
- 2021-08-02 CN CN202121785537.5U patent/CN216077921U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |