CN203856856U - Loosening-preventive and disassembling-preventive fastening member - Google Patents
Loosening-preventive and disassembling-preventive fastening member Download PDFInfo
- Publication number
- CN203856856U CN203856856U CN201420280513.8U CN201420280513U CN203856856U CN 203856856 U CN203856856 U CN 203856856U CN 201420280513 U CN201420280513 U CN 201420280513U CN 203856856 U CN203856856 U CN 203856856U
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- CN
- China
- Prior art keywords
- thread
- bolt
- angle
- preventive
- fastening member
- 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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- Bolts, Nuts, And Washers (AREA)
Abstract
Disclosed is a loosening-preventive and disassembling-preventive fastening member. The fastening member is technically characterized by comprising a nut body and a bolt, a thread meshed with a bolt thread on the surface of the bolt is arranged on the inner surface of the nut body, angle of the thread is different from that of the bolt thread, rotating angle of the thread is leftward while that of the bolt thread is rightward, and rotating angle of the thread is rightward while that of the bolt thread is leftward. By adopting the technical scheme, tooth form angle of a thread meshing face is changed, and an existing meshing mode is changed into a point contact mode; a certain amount of elastic deformation can be generated at a related position on the meshing face of the thread and the bolt thread when the tooth form after being changed is under a tightened state, and static friction force is far higher than that on a common thread meshing face at the moment to achieve the objective of loosening prevention; the loosening-preventive and disassembling-preventive fastening member is supportive of stepless adjusting, wide in pretightening force application range, reusable, long in service life, simple in structure and convenient to use.
Description
Technical field
The utility model relates to securing means technical field, specifically a kind of blocking and antiunloading fastening piece.
Background technique
Nut is common fastening piece at mechanical field, the effect of playing also can not be ignored, existing nut internal surface mostly is worm structure, under for example burning sun and rainwater and moisture conditions in the external world, can affect the tightness of nut, as the time can produce loosening phenomenon after for a long time, may have influence on thus mechanical Security and functional, in addition, existing nut can not carry out stepless adjustment, therefore the Applicable scope of pretightening force is little, and working life is not ideal enough.
The engagement system of conventional mechanical whorl is the contact between equal angular and the Surface of action of same curvature, is line contact at profile of tooth sectional drawing, can regard a kind of nonelastic contact as, and pretightening force accommodation is less, under tight condition, gets loose through vibrating easily.
Model utility content.
In order to address the above problem, the utility model provides a kind of blocking and antiunloading fastening piece.
A kind of blocking and antiunloading fastening piece, comprise nut body and bolt, on nut body internal surface, be provided with the screw thread being meshed with the bolt line on bolt surface, the bottom of interrupting of the conical butt head of bolt has an oblique breach, the large bottom portion of the frustum of a cone of nut body has an oblique breach, it is characterized in that: the angle of described screw thread is different from the angle of bolt line.
Further, the angle of described screw thread is for rotating left.
Further, the angle of described bolt line is for rotating to the right.
Further, the angle of described screw thread is for rotating to the right.
Further, the angle of described bolt line is for rotating left.
Advantage of the present utility model:
1, can steplessly adjust, pretightening force accommodation is large;
2, can be repeatedly used long service life;
3, simple in structure, easy to use.
Brief description of the drawings
Fig. 1 is overall structure simplified schematic diagram of the present utility model;
Fig. 2 is the structural representation sketch in the utility model using process.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated; Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment 1
As shown in Figure 1-2, a kind of blocking and antiunloading fastening piece, comprise nut body 1 and bolt 4, on nut body 1 internal surface, be provided with the screw thread 2 being meshed with the bolt line 3 on bolt 4 surfaces, the large bottom portion of the conical butt head of bolt 4 has an oblique breach, and the large bottom portion of the frustum of a cone of nut body 1 has an oblique breach, and the angle of described screw thread 2 is different from the angle of bolt line 3, the angle of described screw thread 2 is for rotating left, and the angle of described bolt line 3 is for rotating to the right.
Further, the angle of described screw thread 2 is for rotating to the right.
Further, the angle of described bolt line 3 is for rotating left.
Adopt technique scheme to change the profile of tooth angle of screw thread 2 Surface of action, make existing engagement system become a contact, profile of tooth after changing can make screw thread 2 and the region of interest on bolt line 3 Surface of action produce a certain amount of resiliently deformable under tight condition, and stiction now, far above the stiction on regular screw threads Surface of action, reaches locking object with this, also can steplessly adjust, pretightening force accommodation is large, can be repeatedly used long service life, simple in structure, easy to use.
Claims (5)
1. a blocking and antiunloading fastening piece, comprise nut body and bolt, on nut body internal surface, be provided with the screw thread being meshed with the bolt line on bolt surface, the bottom of interrupting of the conical butt head of bolt has an oblique breach, the large bottom portion of the frustum of a cone of nut body has an oblique breach, it is characterized in that: the angle of described screw thread is different from the angle of bolt line.
2. a kind of blocking and antiunloading fastening piece according to claim 1, is characterized in that: the angle of described screw thread is for rotating left.
3. a kind of blocking and antiunloading fastening piece according to claim 1, is characterized in that: the angle of described bolt line is for rotating to the right.
4. a kind of blocking and antiunloading fastening piece according to claim 1, is characterized in that: the angle of described screw thread is for rotating to the right.
5. a kind of blocking and antiunloading fastening piece according to claim 1, is characterized in that: the angle of described bolt line is for rotating left.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420280513.8U CN203856856U (en) | 2014-05-27 | 2014-05-27 | Loosening-preventive and disassembling-preventive fastening member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420280513.8U CN203856856U (en) | 2014-05-27 | 2014-05-27 | Loosening-preventive and disassembling-preventive fastening member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203856856U true CN203856856U (en) | 2014-10-01 |
Family
ID=51606708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420280513.8U Expired - Fee Related CN203856856U (en) | 2014-05-27 | 2014-05-27 | Loosening-preventive and disassembling-preventive fastening member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203856856U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819195A (en) * | 2015-04-15 | 2015-08-05 | 李延春 | Loosening-prevention type bolt |
| CN107923428A (en) * | 2015-07-31 | 2018-04-17 | 英法斯泰克知识产权私人有限公司 | Threaded fastener |
| CN108071642A (en) * | 2016-11-10 | 2018-05-25 | 株式会社友荣精密 | Fastening member |
-
2014
- 2014-05-27 CN CN201420280513.8U patent/CN203856856U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819195A (en) * | 2015-04-15 | 2015-08-05 | 李延春 | Loosening-prevention type bolt |
| CN107923428A (en) * | 2015-07-31 | 2018-04-17 | 英法斯泰克知识产权私人有限公司 | Threaded fastener |
| US10724566B2 (en) | 2015-07-31 | 2020-07-28 | Infastech Intellectual Properties Pte. Ltd. | Threaded fastener |
| CN107923428B (en) * | 2015-07-31 | 2021-08-24 | 英法斯泰克知识产权私人有限公司 | Threaded fastener |
| CN113530942A (en) * | 2015-07-31 | 2021-10-22 | 英法斯泰克知识产权私人有限公司 | Threaded fastener |
| CN108071642A (en) * | 2016-11-10 | 2018-05-25 | 株式会社友荣精密 | Fastening member |
| CN108071642B (en) * | 2016-11-10 | 2021-12-21 | 株式会社友荣精密 | Fastening member |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TANG LIBO Effective date: 20141203 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141203 Address after: 300222 Tianjin city Nankai District Huayuan Wuhua Avenue Taiyu building 3 floor Patentee after: TIANJIN HENGGUAN SCIENCE & TECHNOLOGY DEVELOPMENT CO., LTD. Patentee after: Tang Libo Address before: 300222 Tianjin city Nankai District Huayuan Wuhua Avenue Taiyu building 3 floor Patentee before: TIANJIN HENGGUAN SCIENCE & TECHNOLOGY DEVELOPMENT CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20170527 |