CN204851951U - Auto -lock swivel nut is prevented changeing by dysmorphism - Google Patents
Auto -lock swivel nut is prevented changeing by dysmorphism Download PDFInfo
- Publication number
- CN204851951U CN204851951U CN201520439565.XU CN201520439565U CN204851951U CN 204851951 U CN204851951 U CN 204851951U CN 201520439565 U CN201520439565 U CN 201520439565U CN 204851951 U CN204851951 U CN 204851951U
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- swivel nut
- hole
- nut part
- utility
- model
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Abstract
The utility model discloses an auto -lock swivel nut is prevented changeing by dysmorphism, including swivel nut part (1), be equipped with external screw thread (4) on the outer face of cylinder of swivel nut part (1), be equipped with hole (2) at the middle part of swivel nut part (1), cheat (3) along radial orientation external screw thread (4) outer denting deformation who produces through flaring or punching press that is equipped with, external screw thread (4) the oriented evagination of swivel nut part (1) just located denting deformation hole (3), a local crowning for producing auto -lock moment, there are 2-4 denting deformation holes (3) along circumference evenly distributed on external screw thread (4), and all be equipped with the local crowning to the evagination in every denting deformation hole (3). The utility model discloses not only have self -locking function's advantage, but also have the advantage that intensity is enough, firm in connection is reliable. The utility model discloses after being particularly suitable for downthehole component assembly, carry out spacing, pivoted effect to the part at downthehole axial position to its occasion that has great axial load is used.
Description
Technical field
The utility model relates to a kind of anti-rotation self-locking swivel nut, belongs to self-locking thread connection technology field.
Background technique
At present, in typically hole after Assembly of the parts, all adopt circlip for hole to carry out spacing to the axial position of part in hole, because circlip for hole wall is thin, intensity is low, easily lost efficacy under the effect of axial impact force.Therefore, when thrust load is larger, circlip for hole is adopted to carry out to the axial position of part in hole the needs that spacing mode can not meet use.
Model utility content
The purpose of this utility model is, provide a kind of can to the axial position of part in hole carry out spacing, intensity is higher, prevent the rotation of part and can bear the one abnormity anti-rotation self-locking swivel nut that thrust load impacts, thus overcomes the deficiencies in the prior art.
For achieving the above object, the utility model adopts following technical proposal:
A kind of anti-rotation self-locking swivel nut, comprise swivel nut part, the external cylindrical surface of swivel nut part is provided with outside thread, hole is provided with at the middle part of swivel nut part, the depressed deformation hole produced by enlarging or punching press is provided with outside radially outside thread, just to the outside thread of the swivel nut part at depressed deformation hole place have cambered outwards, for generation of the local crowning of self-locking moment, outside thread is circumferentially evenly distributed with 2 ~ 4 depressed deformation holes, and is provided with cambered outwards local crowning in each depressed deformation hole.
The end face of above-mentioned swivel nut part is provided with spanner handling breach.
The beneficial effect that have employed technique scheme is:
The utility model is taked to produce the outside protruding structure in 2 ~ 4 places in outside thread circumference on swivel nut, make the outside thread generation deformed threads among a small circle of swivel nut, when the outside thread after being out of shape is screwed into the matrix part of band interior threaded hole, the internal thread of matrix part tightly embraces the swivel nut that outside thread is slightly deformed, thus in making, externally threaded joint produces locking torque, the matrix part of band interior threaded hole is firmly connected with one abnormity anti-rotation self-locking swivel nut, good locking effect can be played like this, thus achieve auto-lock function, and the hole of part prevents the rotation of part, prevent moving axially of swivel nut part, because the special-shaped anti-rotation self-locking swivel nut of one is be threaded with matrix, can ensure that it has enough intensity to bear going out of thrust load.Therefore, compared with prior art, the utility model not only has the advantage of auto-lock function to the utility model, but also has the ability preventing from rotating, and intensity is enough, the advantage of firm and reliable connection.The utility model is particularly suitable in hole after Assembly of the parts, carries out spacing to the axial position of part in hole, and it has the occasion of larger thrust load to use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is A portion partial enlargement structural representation;
In figure: 1-swivel nut part, 2-hole, 3-depressed deformation is cheated, 4-outside thread.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment of the present utility model: when implementing the utility model, swivel nut part 1 is produced outside thread 4, and the heart makes hole 2 wherein, then existing flaring or impact style is adopted to produce 2 ~ 4 depressed deformation holes 3 at the radially outside outside thread in hole 2, so namely, making the outside thread on swivel nut part 1 outer surface of hole produce the local crowning of local convex distortion by making depressed deformation hole 3, during connection, producing self-locking moment; Irregularly-shaped hole has the effect preventing from rotating.
Claims (1)
1. an anti-rotation self-locking swivel nut, comprise swivel nut part (1), the external cylindrical surface of swivel nut part (1) is provided with outside thread (4), hole (2) is provided with at the middle part of swivel nut part (1), depressed deformation hole (3) produced by enlarging or punching press is provided with outside radially outside thread (4), just have cambered outwards to the outside thread (4) of the swivel nut part (1) at (3) place, depressed deformation hole, for generation of the local crowning of self-locking moment, it is characterized in that: on outside thread (4), be circumferentially evenly distributed with 2 ~ 4 depressed deformations hole (3), and be provided with cambered outwards local crowning each depressed deformation hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520439565.XU CN204851951U (en) | 2015-06-25 | 2015-06-25 | Auto -lock swivel nut is prevented changeing by dysmorphism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520439565.XU CN204851951U (en) | 2015-06-25 | 2015-06-25 | Auto -lock swivel nut is prevented changeing by dysmorphism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204851951U true CN204851951U (en) | 2015-12-09 |
Family
ID=54742503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520439565.XU Active CN204851951U (en) | 2015-06-25 | 2015-06-25 | Auto -lock swivel nut is prevented changeing by dysmorphism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204851951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013547A (en) * | 2017-05-17 | 2017-08-04 | 贵州航天精工制造有限公司 | A kind of part without twisting self-locking method and without twisting structure self-locking thread insert |
-
2015
- 2015-06-25 CN CN201520439565.XU patent/CN204851951U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013547A (en) * | 2017-05-17 | 2017-08-04 | 贵州航天精工制造有限公司 | A kind of part without twisting self-locking method and without twisting structure self-locking thread insert |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |