CN201671943U - Self-locking nut with triangular squeezing end surfaces - Google Patents
Self-locking nut with triangular squeezing end surfaces Download PDFInfo
- Publication number
- CN201671943U CN201671943U CN2010201975330U CN201020197533U CN201671943U CN 201671943 U CN201671943 U CN 201671943U CN 2010201975330 U CN2010201975330 U CN 2010201975330U CN 201020197533 U CN201020197533 U CN 201020197533U CN 201671943 U CN201671943 U CN 201671943U
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- CN
- China
- Prior art keywords
- nut
- self
- locking
- squeezing
- locking nut
- 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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Abstract
The utility model discloses a self-locking nut with triangular squeezing end surfaces, which comprises a nut. One end of the nut is provided with three squeezing surfaces which is molded via squeezing, the three squeezing surfaces form a triangle at the end of the nut, and an internal threaded hole of the nut at the end of the three squeezing surfaces is a non-circular or non-oval hole. When the nut is connected with a screw stem, at least three self-locking points are formed at the position of a deformation hole, and tightly contact with threads of the screw stem so as to produce self-locking moment. In addition, as the three squeezing surfaces are in squeezing molding, screw pitch in the threaded hole at the end of the nut with the three squeezing surfaces can be in axial compression deformation, and when the nut is connected with the screw stem, larger self-locking moment is also produced atthe position of deformed threads. The self-locking nut has the advantages of fine self-locking effect, simple structure and easy manufacturing.
Description
Technical field
The utility model relates to a kind of extruding end face triangle self-locking nut, belongs to a kind of self-locking nut technical field.
Background technique
At present traditional full-metallic hexagon nut pack into bolt connect fastening after, under the situation that is subjected to external clamping force and compressive force, withdraw from easily, cause being connected the fastening piece operational failure, have a strong impact on the matching requirements of fastener.And self-locking nut of the prior art generally adopts the internal thread with nut one end to be made into oval in shape, though the self-locking nut of this shape has certain self-locking property, but because the latching point of this nut has only 2 points of symmetry, the self-locking moment that is produced is smaller, so its using effect still is not ideal enough.
Summary of the invention
The purpose of this utility model is, provide a kind of simple in structure, make easily and the self-locking effect is pushed end face triangle self-locking nut preferably, to overcome the deficiencies in the prior art.
The technical solution of the utility model: extruding end face triangle self-locking nut of the present utility model comprises nut, on an end of nut, be provided with three compressive planes by extrusion modling, three compressive planes constitute a leg-of-mutton shape in the end of nut, and are non-circular or non-oval-shaped hole at the interior threaded hole of the nut of three compressive plane one ends.
Above-mentioned nut is all-metal hexagon nut.
Owing to adopted technique scheme, thereby the utility model makes the interior threaded hole of the nut of three compressive plane one ends become non-circular or non-oval-shaped distortion hole by three compressive planes of extrusion modling on an end of nut, like this when nut of the present utility model is connected with screw rod, contact the latching point of generation self-locking moment very closely with screw flight thereby produce three to I haven't seen you for ages in the position in this distortion hole; In addition, because when carrying out three compressive planes of extrusion modling, the pitch in this end tapped hole also can produce axial crushing deformation, when nut was connected with screw rod, the screw thread place after this distortion also can produce bigger self-locking moment like this.Therefore, the utility model has self-locking effect preferably in use.The utility model compared with prior art, the utility model not only has the effective advantage of self-locking, but also have simple in structure, make to be easy to advantage.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the side-looking structural representation of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment of the present utility model: when making extruding end face triangle self-locking nut of the present utility model, nut 1 is all-metal hexagon nut, can adopt 45 steel, 1Cr18Ni9Ti, 1Cr17Ni2, metallic material such as ML35 are made, during making, produce metric system or MJ screw thread by traditional tapping mode and according to the needs that use earlier, then by after the tapping on arbitrary end face of nut 1 three compressive planes 2 of pattern tool extrusion modling, make three compressive planes 2 constitute a leg-of-mutton shape in the end of nut 1, and making the interior threaded hole at the nut 1 of three compressive plane 2 one ends is non-circular or non-oval-shaped hole, can make the screw thread of this end face be subjected to radial and axial distortion like this, and after pass through to upset sclerosis of refrigeration do or the mechanical property of heat treatment reinforcement with satisfied regulation, it can not freely be rotated on the screw flight that uses that matches, and the function that can outside clamping force or compressive force, provide anti-spline to a certain degree to move back, thereby reach the purpose of self-locking property.
Because the utility model is connected by fitted bolt and matrix, can play good anti-spline and move back effect, therefore be particularly suitable for as the locking special fastener use of the connection of industries such as Aeronautics and Astronautics, automobile, electronics.
Claims (2)
1. one kind is pushed end face triangle self-locking nut, comprise nut (1), it is characterized in that: on an end of nut (1), be provided with three compressive planes (2) by extrusion modling, three compressive planes (2) constitute a leg-of-mutton shape in the end of nut (1), and are non-circular or non-oval-shaped hole at the interior threaded hole of the nut (1) of three compressive plane (2) one ends.
2. extruding end face triangle self-locking nut according to claim 1 is characterized in that: nut (1) is all-metal hexagon nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201975330U CN201671943U (en) | 2010-05-20 | 2010-05-20 | Self-locking nut with triangular squeezing end surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201975330U CN201671943U (en) | 2010-05-20 | 2010-05-20 | Self-locking nut with triangular squeezing end surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201671943U true CN201671943U (en) | 2010-12-15 |
Family
ID=43329355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201975330U Expired - Fee Related CN201671943U (en) | 2010-05-20 | 2010-05-20 | Self-locking nut with triangular squeezing end surfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201671943U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672076A (en) * | 2012-04-28 | 2012-09-19 | 河南航天精工制造有限公司 | Device for necking grooved self-locking nut |
| CN104019110A (en) * | 2014-06-12 | 2014-09-03 | 费小芳 | Nut |
-
2010
- 2010-05-20 CN CN2010201975330U patent/CN201671943U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672076A (en) * | 2012-04-28 | 2012-09-19 | 河南航天精工制造有限公司 | Device for necking grooved self-locking nut |
| CN102672076B (en) * | 2012-04-28 | 2014-12-17 | 河南航天精工制造有限公司 | Device for necking grooved self-locking nut |
| CN104019110A (en) * | 2014-06-12 | 2014-09-03 | 费小芳 | Nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20140520 |