CN207246201U - A kind of variable-tooth type nut with left-right rotary screw thread - Google Patents
A kind of variable-tooth type nut with left-right rotary screw thread Download PDFInfo
- Publication number
- CN207246201U CN207246201U CN201721037612.3U CN201721037612U CN207246201U CN 207246201 U CN207246201 U CN 207246201U CN 201721037612 U CN201721037612 U CN 201721037612U CN 207246201 U CN207246201 U CN 207246201U
- Authority
- CN
- China
- Prior art keywords
- nut
- thread
- bolt
- screw thread
- utility
- 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
Links
Abstract
Machanical fastener manufacturing technology field is the utility model is related to, is concretely a kind of variable-tooth type nut with left-right rotary screw thread, nut body is made of top nut and lower nut, and levogyrate inner thread is equipped with the inside of top nut；Boss is equipped with above the lower nut, the outer rim of boss is equipped with the sinistral external thread with being meshed on the inside of top nut, dextrorotation internal thread is equipped with the inside of lower nut；Levogyrate inner thread, sinistral external thread, dextrorotation internal thread are equipped with a tapered ramp in ridge bottom, top nut is installed after nuts and bolt is tightened instantly, bolt vibrate when produce pine counterclockwise move back power make under the action of inside and outside left hand thread top nut compress lower nut, so as to improve anti-loosening property；After bolt and the utility model are mutually tightened, the cusp of bolt is just withstood on 30 ° of lozenges of the utility model, normal force caused by the contact that is applied between screw thread and bolt axis is set to increase locking frictional force into 30 ° of 60 ° of angles rather than regular screw threads so as to reach anti-loosing effect.
Description
Technical field
Machanical fastener manufacturing technology field is the utility model is related to, is concretely a kind of with left-right rotary screw thread
Variable-tooth type nut.
Background technology
With expanding economy, screw thread cannot meet to be actually needed using 30 ° of wedge-shaped checknuts come locking, especially
It is that common existing checknut can not meet customer requirement in some parts assemblings high for fastening requirements,
Therefore just need to design the stop nut that a kind of fastening ability is high and production cost is low.
The content of the invention
The utility model breaches the problem of the prior art, devises that a kind of fastening ability is high and that production cost is low is locking
Nut.
In order to achieve the above object, the utility model devises a kind of variable-tooth type nut with left-right rotary screw thread, including spiral shell
Maternal body, it is characterised in that：Nut body is made of top nut and lower nut, and levogyrate inner thread is equipped with the inside of top nut；It is described
Boss is equipped with above lower nut, the outer rim of boss is equipped with the sinistral external thread with being meshed on the inside of top nut, is set on the inside of lower nut
There is dextrorotation internal thread；It is oblique that the levogyrate inner thread, sinistral external thread, dextrorotation internal thread are equipped with a wedge shape in ridge bottom
Face.
Angle between tapered ramp and screw thread lower plane the reverse extending line is 30 °.
The utility model compared with prior art, installs top nut after nuts and bolt is tightened instantly, bolt produces when vibrating
Raw pine counterclockwise moves back power makes top nut compress lower nut under the action of inside and outside left hand thread, so as to improve anti-loosening property；When
After bolt and the utility model are mutually tightened, the cusp of bolt is just withstood on 30 ° of lozenges of the utility model, makes to be applied to spiral shell
Normal force caused by contact between line and bolt axis into 30 ° of 60 ° of angles rather than regular screw threads, increase locking frictional force from
And reach anti-loosing effect.
Brief description of the drawings
Fig. 1 is the structure diagram of top nut in the utility model.
Fig. 2 is the structure diagram of lower nut in the utility model.
Fig. 3 is helicitic texture and force diagram schematic diagram in the utility model.
Referring to Fig. 1 ~ Fig. 3,1 is top nut, and 1-1 is levogyrate inner thread, and 2 be lower nut, and 2-1 is boss, and 2-2 is left-handed outer
Screw thread, 3 be tapered ramp.
Embodiment
The utility model is described further with reference to attached drawing.
Referring to Fig. 1 ~ Fig. 3, the utility model devises a kind of variable-tooth type nut with left-right rotary screw thread, including nut sheet
Body, nut body are made of top nut 1 and lower nut 2, and the inner side of top nut 1 is equipped with levogyrate inner thread 1-1；On the lower nut 2
Side is equipped with boss 2-1, and the outer rim of boss 2-1 is equipped with the sinistral external thread 2-2 being meshed with the inner side of top nut 1, the inner side of lower nut 2
Equipped with dextrorotation internal thread；The levogyrate inner thread 1-1, sinistral external thread 2-2, dextrorotation internal thread are equipped with one in ridge bottom
A tapered ramp 3.
Angle in the utility model between tapered ramp 3 and screw thread lower plane reverse extending line is 30 °, when bolt and this
After utility model is mutually tightened, the cusp of bolt is just withstood on 30 ° of lozenges, is made caused by the contact that is applied between screw thread
Normal force and bolt axis increase locking frictional force so as to reach anti-loosing effect into 30 ° of 60 ° of angles rather than regular screw threads.
Lower nut and bolt are first tightened fixation by the utility model in specific implementation, then install top nut, hereafter, spiral shell
Bolt vibrate when produce pine counterclockwise move back power make under the action of inside and outside left hand thread top nut compress lower nut, so as to improve anti-
Loose performance, and the utility model can freely coordinate with the external screw thread of standard, and the externally threaded tolerance coordinated 6g with
On.
Claims (2)
1. a kind of variable-tooth type nut with left-right rotary screw thread, including nut body, it is characterised in that：Nut body by top nut with
Lower nut forms, and levogyrate inner thread is equipped with the inside of top nut；Be equipped with boss above the lower nut, the outer rim of boss equipped with it is upper
The sinistral external thread being meshed on the inside of nut, lower nut inner side are equipped with dextrorotation internal thread；The levogyrate inner thread, left-handed outer spiral shell
Line, dextrorotation internal thread are equipped with a tapered ramp in ridge bottom.
A kind of 2. variable-tooth type nut with left-right rotary screw thread according to claim 1, it is characterised in that：The tapered ramp
Angle between screw thread lower plane reverse extending line is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721037612.3U CN207246201U (en) | 2017-08-18 | 2017-08-18 | A kind of variable-tooth type nut with left-right rotary screw thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721037612.3U CN207246201U (en) | 2017-08-18 | 2017-08-18 | A kind of variable-tooth type nut with left-right rotary screw thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207246201U true CN207246201U (en) | 2018-04-17 |
Family
ID=61880757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721037612.3U Expired - Fee Related CN207246201U (en) | 2017-08-18 | 2017-08-18 | A kind of variable-tooth type nut with left-right rotary screw thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207246201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120496A (en) * | 2019-12-31 | 2020-05-08 | 上海球明标准件有限公司 | High-strength deep-drawing nut used in cooperation with bolt |
-
2017
- 2017-08-18 CN CN201721037612.3U patent/CN207246201U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120496A (en) * | 2019-12-31 | 2020-05-08 | 上海球明标准件有限公司 | High-strength deep-drawing nut used in cooperation with bolt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201908932U (en) | Self-locking locknut assembly | |
| CN207246201U (en) | A kind of variable-tooth type nut with left-right rotary screw thread | |
| CN201155516Y (en) | Forward and backward double thread self locking type screw rod cap nut | |
| CN201412429Y (en) | Spherical high-locking nut | |
| CN206918016U (en) | A kind of angle of articulation is more than the stop nut of the flange surface toothed of lead angle | |
| CN208330961U (en) | Combined self stop nut | |
| CN103600832B (en) | A kind of strut | |
| CN202348913U (en) | Self-locking type rollover rivet nut | |
| CN104196864A (en) | Double-nut check bolt | |
| CN206918024U (en) | A kind of anti-loose anti-theft nut of the nut side with wedged block external member | |
| CN206458704U (en) | Stop nut | |
| CN203756706U (en) | Controllable-pressure type locking combined nut | |
| CN103807271B (en) | A kind of self locking combination nut preventing nut loosening | |
| CN102900740B (en) | Cap-buckled seismic locking pipe nut | |
| CN206918025U (en) | A kind of strap cam holds out against the combination stop nut of structure | |
| CN206409498U (en) | A kind of railway locking Anti-falling-off nut of heterodont | |
| CN207246199U (en) | A kind of one side of something flange face is stepped stop nut | |
| CN203374613U (en) | Lock washer | |
| CN208040874U (en) | Blind hole quick-detachable lock and the interlayer connection structure for using the blind hole quick-detachable lock | |
| CN207246196U (en) | A kind of anti-loose anti-theft nut with crushing block external member | |
| CN207178428U (en) | A kind of Aero-Space nut being easily installed | |
| CN206668720U (en) | A kind of stop nut | |
| CN205315448U (en) | Nut is used in locking | |
| CN209523986U (en) | A kind of two-way 30 degree of variable-tooth type screw threads combination stop nut of band | |
| CN207246202U (en) | A kind of stop nut of side with continuous triangle shape groove |
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: 20180417 Termination date: 20200818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |