CN212803904U - Combined compression type locknut - Google Patents
Combined compression type locknut Download PDFInfo
- Publication number
- CN212803904U CN212803904U CN202021116272.5U CN202021116272U CN212803904U CN 212803904 U CN212803904 U CN 212803904U CN 202021116272 U CN202021116272 U CN 202021116272U CN 212803904 U CN212803904 U CN 212803904U
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- CN
- China
- Prior art keywords
- nut
- locknut
- circular boss
- convex
- boss
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000006835 compression Effects 0.000 title abstract description 11
- 238000007906 compression Methods 0.000 title abstract description 11
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a combination pressing mode locknut belongs to fastener technical field. A combination compression type locknut, including convex nut and concave nut, be equipped with the ring boss on the convex nut, be equipped with the tapered recess on the concave nut. Through the design of the cross sectional areas of the concave nut and the convex nut, the locking operation can be carried out only by using a wrench with a uniform specification, the labor complexity is reduced, and the efficiency is increased. The circular ring boss on the convex nut is extruded through the conical groove on the concave nut, so that the friction between the convex nut and the stud is increased while the connection between the concave nut and the stud is ensured, and the locking effect is further improved.
Description
Technical Field
The utility model relates to a fastener technical field, concretely relates to combination pressing mode locknut.
Background
The fastening element is the most widely used mechanical base element and is an integral part of the fastening connection. The locknut is a common locknut, and the locknut has a locknut principle including mechanical locknut, rivet-punch locknut, friction locknut, structural locknut and the like. In the prior art, for example, chinese patent (ZL20181734069.5) discloses a combined locknut, which is fastened and locked by screwing a left-handed conical pipe thread on a nut body with an inner hole thread of the locknut and by arranging a nylon ring. However, when the locknut is installed, two wrenches with different calibers are needed, the labor steps are increased, and the working efficiency is greatly reduced during mass production.
The prior art Chinese patent (ZL201810957317.2) discloses a combined type locknut which comprises a locknut, a combined type nut and a rubber gasket, wherein under the action of a pretightening force of the locknut, the looseness is effectively prevented through the increase of friction force between threads. However, the locknut is not only complicated in structure but also inconvenient to install.
Therefore, in the field of fasteners, especially locknuts, a locknut with a simple structure, convenient installation and good locking effect is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the prior art, and provides a simple structure, simple to operate and locking effectual combination compression type locknut, has improved locking effect, has promoted production efficiency.
In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:
a combined compression type locknut comprises a convex nut and a concave nut, wherein the convex nut and the concave nut are required to be screwed on a stud to be locked together;
the convex nut comprises a nut body, the cross section area of the nut body is a regular polygonal nut structure, and a circular boss which is integrated with the nut body is arranged on one side of the nut body; the circular boss is of a conical pipe structure, the inner diameter of the circular boss is the same as that of the nut body, and the outer diameter of the circular boss is smaller than that of an inscribed circle of the nut body; the inner hole of the circular boss is provided with concentric threads with the same diameter as the nut body;
the female nut is of a nut structure with the same cross section area as the male nut; the inner hole of the female nut is provided with threads with the same diameter as the male nut, and one side of the inner hole of the female nut is provided with a tapered groove; the depth of the groove is the same as the height of the circular ring boss.
Preferably, the circular boss is uniformly provided with slots on the taper pipe, and the depth of the slots is equal to the height of the circular boss.
Preferably, the taper of the groove is smaller than that of the circular ring boss.
Preferably, the included angle between the slotting direction of the circular ring boss and the tangential direction of the thread is an obtuse angle.
Compared with the prior art, the utility model beneficial effect lies in:
the utility model provides a combined compression type locknut, through the design of the cross sectional area of the concave nut and the convex nut is equal, the locking work can be carried out only by using the wrench with the uniform specification, the labor complexity is reduced, and the efficiency is increased;
the circular boss on the convex nut is extruded through the conical groove on the concave nut, so that the friction between the convex nut and the stud is increased while the connection between the concave nut and the stud is ensured, and the locking effect is further improved;
through slotting on the circular ring boss, and the fluting direction is obtuse design with screw thread tangential direction contained angle, reduces fluting department to protruding nut frictional resistance to increase the frictional force of circular ring boss to the double-screw bolt.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure of a combined compression type locknut;
FIG. 2 is a front view of a combination compression locknut;
FIG. 3 is a top view of a male nut structure;
fig. 4 is a sectional view of a combination compression type locknut.
Wherein, 1-convex nut, 2-concave nut, 3-nut body, 4-circular ring boss, 5-open slot and 6-groove.
Detailed Description
The preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are not intended to limit the scope of the invention, but rather, are intended to cover all modifications and equivalents of the claims.
As shown in fig. 1, the combined compression type locknut disclosed by the utility model comprises a convex nut 1 and a concave nut 2, wherein the convex nut 1 and the concave nut 2 need to be screwed on a stud to be locked together;
the convex nut 1 comprises a nut body 3, the cross section area of the nut body 3 is a regular hexagonal nut structure, and a circular boss 4 which is integrated with the nut body 3 is arranged on one side of the nut body 3; the circular boss 4 is of a conical pipe structure, the inner diameter of the circular boss 4 is the same as that of the nut body 3, and the outer diameter of the circular boss 4 is smaller than the diameter of an inscribed circle of the nut body 3; the inner hole of the circular boss 4 is provided with concentric threads with the same diameter as the nut body 3;
the female nut 2 is of a nut structure with the same cross section area as the male nut 1; the inner hole of the female nut 2 is provided with a thread with the same diameter as the male nut 1, and one side of the inner hole of the female nut 2 is provided with a tapered groove 6; the depth of the groove 6 is the same as the height of the circular boss 4.
Preferably, the circular boss 4 is provided with four slots 5 uniformly distributed on the taper pipe along the circumference, and the depth of each slot 5 is equal to the height of the circular boss 4.
Preferably, the taper of the groove 6 is smaller than that of the circular ring boss 4, so that a better pressing effect can be realized.
Preferably, the direction of the slots 5 of the circular boss 4 forms an obtuse angle with the tangential direction of the thread.
The installation process of the combined compression type locknut is as follows:
1. firstly, screwing a convex nut 1 on a screw rod and fixing the convex nut at a set position;
2. and then, screwing the female nut 2 on the screw rod, and stopping screwing after the circular ring boss 4 is completely meshed with the groove 6 to finish the installation.
Through adopting the utility model provides a combination pressing mode locknut realizes only needing just can carrying out locking work with unified specification spanner, reduces the work complexity, and increase efficiency simultaneously, extrudees ring boss 4 on the male nut 1 through conical recess 6 on the female nut 2, can be when guaranteeing that female nut 2 is connected with the double-screw bolt, has increased the friction between male nut 1 and double-screw bolt, and then improves the locking effect.
Although particular implementations of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a combination pressing mode locknut which characterized in that: comprises a convex nut (1) and a concave nut (2);
the convex nut (1) comprises a nut body (3), the cross section area of the nut body (3) is of a regular polygonal nut structure, and a circular boss (4) which is integrated with the nut body (3) is arranged on one side of the nut body; the circular boss (4) is of a taper pipe structure, the inner diameter of the circular boss (4) is the same as that of the nut body (3), and the outer diameter of the circular boss (4) is smaller than the diameter of an inscribed circle of the nut body (3); the inner hole of the circular boss (4) is provided with concentric threads with the same diameter as the nut body (3);
the female nut (2) is of a nut structure with the cross section area equal to that of the male nut (1); the inner hole of the female nut (2) is provided with a thread with the same diameter as that of the male nut (1), and one side of the inner hole of the female nut (2) is provided with a tapered groove (6); the depth of the groove (6) is the same as the height of the circular boss (4).
2. The combination compression-type locknut of claim 1, wherein: the circular boss (4) is uniformly provided with slots (5) on the taper pipe, and the depth of the slots (5) is equal to the height of the circular boss (4).
3. The combination compression-type locknut of claim 1, wherein: the taper of the groove (6) is smaller than that of the circular ring boss (4).
4. The combination compression-type locknut of claim 2, wherein: the angle of the groove (5) of the circular boss (4) is obtuse with the included angle of the thread tangent direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021116272.5U CN212803904U (en) | 2020-06-16 | 2020-06-16 | Combined compression type locknut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021116272.5U CN212803904U (en) | 2020-06-16 | 2020-06-16 | Combined compression type locknut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212803904U true CN212803904U (en) | 2021-03-26 |
Family
ID=75096831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021116272.5U Expired - Fee Related CN212803904U (en) | 2020-06-16 | 2020-06-16 | Combined compression type locknut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212803904U (en) |
-
2020
- 2020-06-16 CN CN202021116272.5U patent/CN212803904U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |