CN211975640U - Locknut assembly - Google Patents
Locknut assembly Download PDFInfo
- Publication number
- CN211975640U CN211975640U CN202020391790.1U CN202020391790U CN211975640U CN 211975640 U CN211975640 U CN 211975640U CN 202020391790 U CN202020391790 U CN 202020391790U CN 211975640 U CN211975640 U CN 211975640U
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- CN
- China
- Prior art keywords
- locknut
- fastening nut
- reaming
- screw hole
- nut
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Abstract
The utility model relates to a locknut subassembly, including bolt, fastening nut and locknut, be equipped with on fastening nut and locknut with bolt complex screw hole, fastening nut's one end is equipped with and is greater than the reaming and the annular groove of screw hole with the coaxial just diameter in screw hole, and the diameter of annular groove is greater than the reaming aperture, and it is protruding that the reaming inner wall is equipped with the round, is equipped with the nylon circle in the reaming, the protruding interference fit of nylon circle and reaming inner wall, a locknut terminal surface is equipped with the boss, the beneficial effects of the utility model are that: the anti-loose nut assembly is simple in structure and good in anti-loose effect.
Description
Technical Field
The utility model relates to a fastener technical field, concretely relates to locknut subassembly.
Background
Threaded fasteners are widely used in various industrial fields, but nuts and bolts are easily loosened under a vibrating condition, thereby affecting reliable operation of equipment. The existing anti-loosening structure still has many defects, such as complex structure, high cost, need of special tools and the like, and therefore the anti-loosening nut assembly with simple structure and good anti-loosening effect is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, provide a locknut subassembly, simple structure, locking respond well.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a locknut subassembly, includes bolt, fastening nut and locknut, be equipped with on fastening nut and the locknut with bolt complex screw hole, its characterized in that: fastening nut's one end be equipped with coaxial and the diameter of screw hole is greater than the reaming and the annular groove of screw hole, the diameter of annular groove is greater than reaming aperture, the reaming inner wall is equipped with the round arch, is equipped with the nylon circle in the reaming, the protruding interference fit of nylon circle and reaming inner wall, locknut terminal surface is equipped with the boss. When the anti-loosening bolt is installed, the fastening nut is screwed into the bolt, the nylon ring is sleeved into the bolt to be matched with the fastening nut, the anti-loosening nut is screwed into the bolt, and the boss of the anti-loosening nut is embedded into the groove of the fastening nut.
The utility model has the characteristics as above: install fastening nut and nylon circle on the bolt, because nylon circle and arch be interference fit, bellied area small stress is more concentrated for the nylon circle is tightly pressed on the screw thread of bolt, and the frictional force increase between the two makes fastening nut be difficult to not hard up.
The utility model discloses further setting is: the threads of the fastening nut and the locknut are 30-degree wedge-shaped lockthreads, the thread pitches of the fastening nut and the locknut are the same, and the threads are opposite.
The utility model has the characteristics as above: the threads of the fastening nut and the locknut are designed into 30-degree wedge-shaped lockthreads, and when the nut and the bolt are screwed tightly, the tooth tip of the bolt is propped against the wedge-shaped inclined surface of the nut, so that huge locking force is generated; the opposite thread further prevents loosening of the fastening nut.
The utility model discloses further setting is: the boss of the locknut is annular, and the protrusion is triangular and is in interference fit with the groove of the fastening nut.
The utility model has the characteristics as above: the bulge of the locknut is clamped in the groove of the fastening nut in a triangular mode, and the locknut is pressurized to enhance the locknut effect.
The utility model discloses further setting is: the anti-loose nut and the fastening nut are hexagonal nuts.
The utility model has the characteristics as above: the nut is designed into a hexagon nut, so that a wrench is convenient to use for screwing.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of a fastening nut according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of the locknut of the embodiment of the present invention.
Fig. 4 is a schematic structural view of a 30-degree wedge-shaped anti-loose thread according to an embodiment of the present invention.
Detailed Description
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
The locknut assembly shown in fig. 1-4 comprises a bolt 1, a fastening nut 2 and a locknut 3, wherein threaded holes matched with the bolt 1 are formed in the fastening nut 2 and the locknut 3, the threads are 30-degree wedge-shaped lockthreads, the thread pitches are the same, the threads are opposite, and both the threads are hexagon nuts.
The one end of fastening nut 2 is equipped with and is greater than reaming 23 and the annular groove 22 of screw hole coaxial and diameter with the screw hole, and the diameter of annular groove 22 is greater than reaming 23's aperture, and reaming 23 inner wall is equipped with the protruding 21 of round, is equipped with nylon ring 4 in the reaming 23, and nylon ring 4 and the protruding 21 interference fit of reaming 23 inner wall.
One end face of the locknut 3 is provided with a boss 31, the boss 31 is annular, and the protrusion is triangular and is in interference fit with the groove 22 of the fastening nut 2.
Claims (4)
1. The utility model provides a locknut subassembly, includes bolt, fastening nut and locknut, be equipped with on fastening nut and the locknut with bolt complex screw hole, its characterized in that: fastening nut's one end be equipped with coaxial and the diameter of screw hole is greater than the reaming and the annular groove of screw hole, the diameter of annular groove is greater than reaming aperture, the reaming inner wall is equipped with the round arch, is equipped with the nylon circle in the reaming, the protruding interference fit of nylon circle and reaming inner wall, locknut terminal surface is equipped with the boss.
2. A locknut assembly as claimed in claim 1, wherein: the threads of the fastening nut and the locknut are 30-degree wedge-shaped lockthreads, the thread pitches of the fastening nut and the locknut are the same, and the threads are opposite.
3. A locknut assembly as claimed in claim 1, wherein: the boss of the locknut is annular, and the protrusion is triangular and is in interference fit with the groove of the fastening nut.
4. A locknut assembly as claimed in claim 1, wherein: the anti-loose nut and the fastening nut are hexagonal nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020391790.1U CN211975640U (en) | 2020-03-24 | 2020-03-24 | Locknut assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020391790.1U CN211975640U (en) | 2020-03-24 | 2020-03-24 | Locknut assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211975640U true CN211975640U (en) | 2020-11-20 |
Family
ID=73380055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020391790.1U Active CN211975640U (en) | 2020-03-24 | 2020-03-24 | Locknut assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211975640U (en) |
-
2020
- 2020-03-24 CN CN202020391790.1U patent/CN211975640U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |