CN206918025U - A kind of strap cam holds out against the combination stop nut of structure - Google Patents
A kind of strap cam holds out against the combination stop nut of structure Download PDFInfo
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- CN206918025U CN206918025U CN201720782488.7U CN201720782488U CN206918025U CN 206918025 U CN206918025 U CN 206918025U CN 201720782488 U CN201720782488 U CN 201720782488U CN 206918025 U CN206918025 U CN 206918025U
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- nut
- tapered ramp
- arc surface
- out against
- holds out
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Abstract
It the utility model is related to field of mechanical technique, specifically a kind of strap cam holds out against the combination stop nut of structure, including top nut and lower nut, the top side of lower nut is provided with boss arc surface, the cylindrical side of top nut is provided with eccentric structure, top nut is arranged on the top of lower nut, the position correspondence of boss arc surface and eccentric structure simultaneously contacts, the internal thread tooth bottom of top nut and lower nut is provided with a tapered ramp, and the angle between described tapered ramp and described internal thread lower plane reverse extending line is 30 °.The utility model compared with the existing technology, in interior Bottom of Thread sets up one 30 ° of tapered ramp, and when bolts and nuts are mutually tightened, the cusp of bolt is just tightly withstood on the tapered ramp of variable-tooth type checknut, so as to generate very big coupling mechanism force；Contacted by top nut and lower nut in boss arc surface with eccentric structure, produce the horizontal pressure perpendicular to bolt axis, so as to further improve anti-loosening property.
Description
Technical field
It the utility model is related to field of mechanical technique, the locking spiral shell of combination that specifically a kind of strap cam holds out against structure
It is female.
Background technology
With expanding economy, its screw thread can not meet to be actually needed using 30 ° of wedge-shaped checknuts come locking.
Therefore, it is necessary to design the combination stop nut that a kind of strap cam with more preferable anti-loosing effect holds out against structure.
The content of the invention
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of band with more preferable anti-loosing effect is convex
Wheel holds out against the combination stop nut of structure.
In order to achieve the above object, the utility model is the combination stop nut that a kind of strap cam holds out against structure, including upper
Nut and lower nut, it is characterised in that：The top side of lower nut is provided with boss arc surface, and the cylindrical side of top nut is provided with partially
Core structure, top nut are arranged on the top of lower nut, and the position correspondence of boss arc surface and eccentric structure simultaneously contacts, top nut and
The internal thread tooth bottom of lower nut is provided with a tapered ramp, and described tapered ramp reversely prolongs with described internal thread lower plane
Angle between long line is 30 °.
Angle between described internal thread lower plane and upper plane is 60 °.
Described eccentric structure is cam surface.
The utility model compared with the existing technology, in interior Bottom of Thread sets up one 30 ° of tapered ramp, when bolt and spiral shell
When parent phase is mutually tightened, the cusp of bolt is just tightly withstood on the tapered ramp of variable-tooth type checknut, very big so as to generate
Coupling mechanism force；Contacted by top nut and lower nut in boss arc surface with eccentric structure, produce the horizontal stroke perpendicular to bolt axis
To pressure, so as to further improve anti-loosening property.
Brief description of the drawings
Fig. 1 is lower nut structural representation of the present utility model.
Fig. 2 is top nut schematic diagram of the present utility model.
Schematic diagram is applied in combination to be of the present utility model in Fig. 3.
Fig. 4 is combination top view of the present utility model.
Fig. 5 is helicitic texture schematic diagram of the present utility model.
Embodiment
The utility model is described further in conjunction with accompanying drawing.
Referring to Fig. 1-5, the utility model is the combination stop nut that a kind of strap cam holds out against structure, including top nut is with
Nut.The tooth bottom of internal thread 1 of top nut 4 and lower nut 2 is provided with a tapered ramp 3, and tapered ramp 3 is put down for 1 time with internal thread
Angle between the reverse extending line of face is 30 °, and the angle between the lower plane of internal thread 1 and upper plane is 60 °.When bolt 7 and spiral shell
After parent phase is mutually tightened, the cusp of bolt 7 is just withstood on 30 ° of tapered ramps 3 of internal thread 1, due to the change of tooth form angle, makes to apply
Normal force caused by the contact between screw thread and bolt axis are added in into 30 degree of 60 degree of angles rather than regular screw threads, it is caused
Locking frictional force increases so as to reach anti-loosing effect.
The top side of lower nut 2 is provided with boss arc surface 5, and the cylindrical side of top nut 4 is provided with eccentric structure, top nut
4 are arranged on the top of lower nut 2, and the position correspondence of boss arc surface 5 and eccentric structure simultaneously contacts.Wherein, eccentric structure is convex
Wheel face 6.First lower nut 2 is tightened in the normal order during installation, then top nut 4 is installed again, connect in the cam surface 6 of top nut 4
When contacting the boss arc surface 5 of lower nut 2, due to the cam profile of top nut 4, according to the design feature of cam self-locking, produce
Perpendicular to the horizontal pressure FX of bolt axis, so as to play the purpose for further improving anti-loosing effect.
The utility model can freely coordinate with the external screw thread of standard, the externally threaded tolerance coordinated with the utility model
For more than 6g, the utility model can be used for institute connection fastening field in need.
Claims (3)
1. a kind of strap cam holds out against the combination stop nut of structure, including top nut and lower nut, it is characterised in that：Lower nut
（2）Top side be provided with boss arc surface（5）, top nut（4）Cylindrical side be provided with eccentric structure, top nut（4）Set
In lower nut（2）Top, boss arc surface（5）With the position correspondence of eccentric structure and contacting, top nut（4）And lower nut
（2）Internal thread（1）Tooth bottom is provided with a tapered ramp（3）, described tapered ramp（3）With described internal thread（1）Under
Angle between planar inverted extended line is 30 °.
2. a kind of strap cam according to claim 1 holds out against the combination stop nut of structure, it is characterised in that：Described is interior
Screw thread（1）Angle between lower plane and upper plane is 60 °.
3. a kind of strap cam according to claim 1 holds out against the combination stop nut of structure, it is characterised in that：Described is inclined
Core structure is cam surface（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720782488.7U CN206918025U (en) | 2017-06-30 | 2017-06-30 | A kind of strap cam holds out against the combination stop nut of structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720782488.7U CN206918025U (en) | 2017-06-30 | 2017-06-30 | A kind of strap cam holds out against the combination stop nut of structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206918025U true CN206918025U (en) | 2018-01-23 |
Family
ID=61334775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720782488.7U Active CN206918025U (en) | 2017-06-30 | 2017-06-30 | A kind of strap cam holds out against the combination stop nut of structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206918025U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158810A (en) * | 2019-04-19 | 2019-08-23 | 天津市思特玻璃有限公司 | A kind of glass fireproof partition |
-
2017
- 2017-06-30 CN CN201720782488.7U patent/CN206918025U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158810A (en) * | 2019-04-19 | 2019-08-23 | 天津市思特玻璃有限公司 | A kind of glass fireproof partition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 408-B, No. 1438, Shaanxi North Road, Putuo District, Shanghai, 200060 Patentee after: Shanghai Zhengao Automobile Technology Co.,Ltd. Address before: 201808 103, Building 2, No. 1108, Yongxin Road, Xuxing Town, Jiading District, Shanghai Patentee before: SHANGHAI ZHENGAO NUT CO.,LTD. |
|
| CP03 | Change of name, title or address |