CN2327831Y - Anti-stealing nut - Google Patents
Anti-stealing nut Download PDFInfo
- Publication number
- CN2327831Y CN2327831Y CN 98202197 CN98202197U CN2327831Y CN 2327831 Y CN2327831 Y CN 2327831Y CN 98202197 CN98202197 CN 98202197 CN 98202197 U CN98202197 U CN 98202197U CN 2327831 Y CN2327831 Y CN 2327831Y
- Authority
- CN
- China
- Prior art keywords
- nut
- core
- sleeve
- bolt
- endoporus
- 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 nut which is connected with a screw bolt to form a fastening. The utility model is characterized in that a nut core and a nut sleeve form a transmission pair, and the nut core is a cylindrical body of a cone table whose screw hole is connected with the screw bolt through a screw thread. The outer part of the nut sleeve is like a nut with a plurality of angles, and the inner hole of the nut sleeve is larger than a through hole of a screw rod. The contact end surface between the nut core and the nut sleeve is provided with one-way meshing saw teeth. The nut can be conveniently screwed down and can not be unscrewed through the tools, such as a wrench, so the nut has the obvious anti-stealing function.
Description
The utility model relates to fastening piece, particularly a kind of and bolted nut.
Nut and bolt connect to form fastening piece, using method and extensively.Take away but will use instrument such as spanner just can unscrew on the existing nut, this has just made things convenient for stealer and saboteur.Therefore nut can be tightened easily, become the problem that needs to be resolved hurrily but can not unscrew easily just to take away.
It is easy to use that the purpose of this utility model will design the same energy of a kind of and existing nut exactly, but can not unscrew the nut of taking away easily.
For this reason and the invention nut, connect into fastening piece with bolt, it constitutes transmission by nut and swivel nut, nut core is a circular cone cylinder, its endoporus is the screw that matches with bolt, nut sleeve is outer, and its endoporus is the through hole of diameter greater than the bolt nominal size like polygonal nut, and the sawtooth of one way engagement is arranged on nut core and the end face that nut sleeve contacts.
For from the utility model nut and existing nut are consistent, with fascination stealer one to, can make the endoporus of the utility model nut sleeve can contain nut core, and have in the endoporus with the nut core end face on the saw of sawtooth one way engagement nibble.
When the anti-pilferage of the utility model nut uses, nut sleeve can be withstood nut core twists and to be enclosed within on the bolt, use spanner nutting cover then, because nut sleeve and nut core constitute transmission, the sawtooth of one way engagement transmits torsion between nut sleeve and the nut core, promote nut core, it is tightened, can take away nut sleeve then.Because nut core is a garden frustum cylinder, instruments such as use spanner can't be unscrewed it.Even do not take away nut sleeve, because the soldered tooth between nut sleeve and the nut core is the sawtooth of one way engagement, anti-nutting cover can not be unscrewed nut core, thereby has reached the purpose that prevents that nut from being stolen.
Embodiment describes the utility model below in conjunction with accompanying drawing.
Fig. 1 is anti-nut and the bolt coupled condition schematic representation stolen of the utility model.
Fig. 2 is the anti-nut core schematic representation of stealing nut.
Fig. 3 is the anti-nut sleeve schematic representation of stealing nut.
Fig. 4 is the nut sleeve schematic representation that can contain nut core.
As Fig. 1, Fig. 2, shown in Figure 3, the anti-nut of stealing constitutes transmission by nut core 3 and nut sleeve 5, connects into fastening piece with bolt 1.Screw thread 2 on the bolt 1 is connected with the screw thread 6 of nut core 3.Nut core 3 is circular cone cylinders.The polygonal nut of nut sleeve 5 outer likeness in form, its endoporus 7 is the through hole of diameter greater than the bolt nominal size.The sawtooth 4 that one way engagement is arranged on both end faces of contacting of nut core 3 and nut sleeve 5.
As shown in Figure 4, the endoporus 7 of nut sleeve 5 can contain nut core 3, have in the endoporus 7 with nut core 4 end faces on the sawtooth 4 of sawtooth 4 one way engagement.
Claims (2)
1, a kind of nut, connect into fastening piece with bolt, it is characterized in that nut is the transmission that is made of nut core and nut sleeve, nut core is a circular cone cylinder, its endoporus is the screw that matches with bolt, nut sleeve is outer, and its endoporus is the through hole of diameter greater than the bolt nominal size like polygonal nut, and the sawtooth of one way engagement is arranged on nut core and the end face that nut sleeve contacts.
2, nut according to claim 1 is characterized in that the endoporus of said nut sleeve can contain nut core, have in its endoporus with the nut core end face on the sawtooth of sawtooth one way engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98202197 CN2327831Y (en) | 1998-03-19 | 1998-03-19 | Anti-stealing nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98202197 CN2327831Y (en) | 1998-03-19 | 1998-03-19 | Anti-stealing nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2327831Y true CN2327831Y (en) | 1999-07-07 |
Family
ID=33959296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98202197 Expired - Fee Related CN2327831Y (en) | 1998-03-19 | 1998-03-19 | Anti-stealing nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2327831Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943206A (en) * | 2010-09-14 | 2011-01-12 | 中国原子能科学研究院 | Locking structure of bolt and nut |
| CN108487872A (en) * | 2018-04-18 | 2018-09-04 | 盐城庆隆机械有限公司 | A kind of piano wire is slipped out of the hand tool |
| CN109185315A (en) * | 2018-11-23 | 2019-01-11 | 航天精工股份有限公司 | A kind of locking auxiliary connection |
-
1998
- 1998-03-19 CN CN 98202197 patent/CN2327831Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943206A (en) * | 2010-09-14 | 2011-01-12 | 中国原子能科学研究院 | Locking structure of bolt and nut |
| CN108487872A (en) * | 2018-04-18 | 2018-09-04 | 盐城庆隆机械有限公司 | A kind of piano wire is slipped out of the hand tool |
| CN109185315A (en) * | 2018-11-23 | 2019-01-11 | 航天精工股份有限公司 | A kind of locking auxiliary connection |
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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 |