CN2583424Y - Locking antiskid screw bolt - Google Patents
Locking antiskid screw bolt Download PDFInfo
- Publication number
- CN2583424Y CN2583424Y CN 02244796 CN02244796U CN2583424Y CN 2583424 Y CN2583424 Y CN 2583424Y CN 02244796 CN02244796 CN 02244796 CN 02244796 U CN02244796 U CN 02244796U CN 2583424 Y CN2583424 Y CN 2583424Y
- Authority
- CN
- China
- Prior art keywords
- bolt
- screw
- screw bolt
- nut
- 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
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Abstract
The utility model relates to a fastener, particularly a locking antiskid screw bolt. Aiming at defects that the screw bolt in the prior art is generally a rotary bolt provided with straight screw threads and matched with screw nuts which are often loosened or dropped during the process of fierce vibration, the rod part of the bolt is designed into a convex shape, and the outer screw threads on the asymmetrical upper and lower parts of the convex shape are opposite in rotary directions. The inner diameter and the rotary directions of the corresponding two screw nuts are respectively engaged with the upper and the lower parts of the convex shape of the bolt, which achieves the locking and anti-sliding purpose. The utility model has simple structure and low cost, the contact length of the screw nuts and the bolt can be regulated optionally, and multiple functions are combined into one body.
Description
The utility model relates to a kind of fastening piece, more particularly relates to a kind of locking anti-skidding bolt.
Bolt of the prior art is generally the double-screw bolt of straight single start thread rotation and supporting nut, in violent concussion process, often nut can become flexible or landing, causes unnecessary trouble or hidden danger, and a slight bolt has influenced people's normal life and work.
The purpose of this utility model provides a kind of anti-loosening anti-sliding, locking anti-skidding bolt simple in structure, with low cost.
For achieving the above object, the utility model is taked following design proposal:
The bar portion of double-screw bolt is a convex, and the up and down asymmetric two-part external thread rotary veer of convex is opposite, and the internal diameter of two nuts of its correspondence and internal thread sense of rotation match with the protruding top and the bottom of double-screw bolt respectively.
For better effect: two nut surface of contact are that uniform section is trapezoidal.
Two nut outside dimensions are similar or equal.
Advantage of the present utility model is: (1) simple in structure, reduce production costs; (2) screw design becomes the despun convex of hand of spiral, and nut matches with it, can play being fastenedly connected, and multiple setting up defences prevents its loosening or landing; (3) two nut surface of contact are that uniform section is trapezoidal, can enlarge its surface of contact, increase friction, can also the regulated at will nut and the contact length of double-screw bolt, and a many usefulness.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
Fig. 1 is the utility model structural representation.
Fig. 2 is the trapezoidal structural representation of uniform section for the utility model two nut surface of contact.
The bar portion of the bolt double-screw bolt 1 among Fig. 1 is a convex, asymmetric two-part external thread rotary veer is opposite about the convex, the internal diameter of two nuts 2 of its correspondence and internal thread sense of rotation match with the protruding top and the bottom of double-screw bolt 1 respectively, and swivel nut 2 gets final product successively in order.
Only two nuts, 2 surface of contact are designed to certain inclination among Fig. 2, it is trapezoidal to be uniform section, presses the thickness of immobilization material, and swivel nut 2 gets final product successively in order.
Claims (3)
1, a kind of locking anti-skidding bolt, comprise double-screw bolt and nut, it is characterized in that: the bar portion of double-screw bolt is a convex, and the up and down asymmetric two-part external thread rotary veer of convex is opposite, and the internal diameter of two nuts of its correspondence and internal thread sense of rotation match with the protruding top and the bottom of double-screw bolt respectively.
2, anti-easing bolt as claimed in claim 1, it is characterized in that: two nut surface of contact are that uniform section is trapezoidal.
3, anti-easing bolt as claimed in claim 1 or 2, it is characterized in that: two nut outside dimensions are similar or equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02244796 CN2583424Y (en) | 2002-11-13 | 2002-11-13 | Locking antiskid screw bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02244796 CN2583424Y (en) | 2002-11-13 | 2002-11-13 | Locking antiskid screw bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2583424Y true CN2583424Y (en) | 2003-10-29 |
Family
ID=33716590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02244796 Expired - Fee Related CN2583424Y (en) | 2002-11-13 | 2002-11-13 | Locking antiskid screw bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2583424Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009024093A1 (en) * | 2007-08-21 | 2009-02-26 | Beijing 3-D Spinal Orthopedics S & T Co. Ltd | A lockable and antirust bolt fastener |
| CN109306998A (en) * | 2017-07-26 | 2019-02-05 | 万金根 | A kind of positive and negative silk screw of never becoming loose |
-
2002
- 2002-11-13 CN CN 02244796 patent/CN2583424Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009024093A1 (en) * | 2007-08-21 | 2009-02-26 | Beijing 3-D Spinal Orthopedics S & T Co. Ltd | A lockable and antirust bolt fastener |
| CN109306998A (en) * | 2017-07-26 | 2019-02-05 | 万金根 | A kind of positive and negative silk screw of never becoming loose |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |