CN2371387Y - Anti-theft nut - Google Patents
Anti-theft nut Download PDFInfo
- Publication number
- CN2371387Y CN2371387Y CN 98208255 CN98208255U CN2371387Y CN 2371387 Y CN2371387 Y CN 2371387Y CN 98208255 CN98208255 CN 98208255 CN 98208255 U CN98208255 U CN 98208255U CN 2371387 Y CN2371387 Y CN 2371387Y
- Authority
- CN
- China
- Prior art keywords
- needle roller
- nut
- roller groove
- groove
- screwed
- 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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- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to a theftproof nut, which comprises a nut and a rolling needle. The rolling needle is a thin cylinder, the side wall of an inner hole of the nut is provided with a segment of rolling needle groove, the rolling needle is arranged in the rolling needle groove, and the length of the rolling needle is less than or equal to the length of the rolling needle groove. One end of the rolling needle groove is opened right home, the other end is not opened right home, the one end which is opened right home is a screwed end for screw bolts, the cross section of the rolling needle groove is a wedge shape, along the rotating direction of the nut which is screwed in, the front part of the rolling needle groove is narrow, and the rear part of the rolling needle groove is wide. The utility model has the advantages of simple structure, convenient operation, strong twisting force for stopping back action, and high theftproof performance.
Description
The utility model relates to a kind of anti-theft nut.It is a kind of anti-theft fastening piece of novel field facility.
Electric power tower in the construction, the bolt that the freeway guardrail combination is used is robbed by the minority unprincipled fellow often, causes serious economic loss for construction top order.Though existing various types of anti-theft bolts on the market, nut is sold, and has the cost height, complicated operation, shortcoming such as antitheft effect is limited.
The purpose of this utility model is to provide a kind of anti-theft nut, and it is simple in structure, and is easy to operate, and the torsion that only reverses is strong, and theftproof performance is good.
The purpose of this utility model is achieved in that
A kind of anti-theft nut, it comprises nut and needle roller, needle roller is thin cylindrical body, the endoporus sidewall of nut has one section needle roller groove, put into needle roller in the needle roller groove, needle roller length is less than or equal to the length of needle roller groove, and needle roller groove one end reaches head, the other end does not reach head, an end that reaches head is that bolt is screwed into end, and the cross section of needle roller groove is a wedge shape, along the direction that is screwed into the nut rotation, needle roller groove anterior narrow, the rear portion of needle roller groove is wide; Needle roller rolls in the depths of needle roller groove when nut is screwed into, until with nut screwing clamping, when nut is back-outed, needle roller is rolled by the taper of screw thread tip band to the needle roller groove, because of tolerance between screw bolt and nut very little, needle roller can make nut not fall back out along with stuck between screw thread, thereby plays antitheft effect.
The needle roller groove is located at the position near certain angle of the inner hole wall of hexagon nut.It also comprises needle roller card bucket, needle roller card bucket is a tubular shape, the one end closure, the other end opens wide, the endoporus that needle roller card bucket is put into anti-theft nut blocks, and card bucket outer wall is provided with tongue corresponding to the needle roller groove of anti-theft nut, and needle roller is fixed in the needle roller groove, when nut was screwed on the bolt, needle roller card bucket was ejected by bolt.
The utility model has following advantage and good effect:
It is specially adapted to old electric power tower, the needs of freeway guardrail transformation and reinforcing, and can save substantial contribution, boundary dimension is identical with plain nut, meets relative national standards and every mechanical property requirement.
Fig. 1 is the plan view of the utility model anti-theft nut;
Fig. 2 is the worm's eye view of the utility model anti-theft nut;
Fig. 3 is the left view of the utility model anti-theft nut;
Fig. 4 is the plan view of the utility model needle roller card bucket;
Fig. 5 is the left pseudosection of the utility model needle roller card bucket;
Describe the utility model in detail below in conjunction with drawings and Examples:
It comprises nut 1 and needle roller 2, needle roller is thin cylindrical body, and the endoporus sidewall of nut has one section needle roller groove 3, puts into needle roller in the needle roller groove, needle roller length is less than or equal to the length of needle roller groove, needle roller groove one end reaches head, and the other end does not reach head, and an end that reaches head is that bolt is screwed into end, the cross section of needle roller groove is a wedge shape, along the direction that is screwed into nut rotation, needle roller groove anterior narrow, the rear portion of needle roller groove is wide; Needle roller rolls in the depths of needle roller groove when nut is screwed into, until with nut screwing clamping, when nut is back-outed, needle roller is rolled by the taper of screw thread tip band to the needle roller groove, because of tolerance between screw bolt and nut very little, needle roller can make nut not fall back out along with stuck between screw thread, thereby plays antitheft effect.
The needle roller groove is located at the position near certain angle of the inner hole wall of hexagon nut.It also comprises needle roller card bucket 4, needle roller card bucket is a tubular shape, the one end closure, the other end opens wide, the endoporus that needle roller card bucket is put into anti-theft nut blocks, and card bucket outer wall is provided with tongue 5 corresponding to the needle roller groove of anti-theft nut, and needle roller is fixed in the needle roller groove, when nut was screwed on the bolt, needle roller card bucket was ejected by bolt.
Claims (3)
1. anti-theft nut, it comprises nut and needle roller, it is characterized in that: needle roller is thin cylindrical body, the endoporus sidewall of nut has one section needle roller groove, put into needle roller in the needle roller groove, needle roller length is less than or equal to the length of needle roller groove, and needle roller groove one end reaches head, the other end does not reach head, an end that reaches head is that bolt is screwed into end, and the cross section of needle roller groove is a wedge shape, along the direction that is screwed into the nut rotation, needle roller groove anterior narrow, the rear portion of needle roller groove is wide; Needle roller rolls in the depths of needle roller groove when nut is screwed into, until with nut screwing clamping, when nut is back-outed, needle roller is rolled by the taper of screw thread tip band to the needle roller groove, because of tolerance between screw bolt and nut very little, needle roller can make nut not fall back out along with stuck between screw thread, thereby plays antitheft effect.
2. anti-theft nut according to claim 1 is characterized in that: the needle roller groove is located at the position near certain angle of the inner hole wall of hexagon nut.
3. anti-theft nut according to claim 1, it is characterized in that: it also comprises needle roller card bucket, needle roller card bucket is a tubular shape, the one end closure, the other end opens wide, and the endoporus that needle roller card bucket is put into anti-theft nut blocks, card bucket outer wall is provided with tongue corresponding to the needle roller groove of anti-theft nut, needle roller is fixed in the needle roller groove, and when nut was screwed on the bolt, needle roller card bucket was ejected by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98208255 CN2371387Y (en) | 1998-09-18 | 1998-09-18 | Anti-theft nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98208255 CN2371387Y (en) | 1998-09-18 | 1998-09-18 | Anti-theft nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2371387Y true CN2371387Y (en) | 2000-03-29 |
Family
ID=33964010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98208255 Expired - Fee Related CN2371387Y (en) | 1998-09-18 | 1998-09-18 | Anti-theft nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2371387Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386534C (en) * | 2006-06-23 | 2008-05-07 | 孙于清 | Firm screw cap for stopping move back |
| CN106246691A (en) * | 2015-06-12 | 2016-12-21 | 现代自动车株式会社 | Anti-theft nut |
| CN106704341A (en) * | 2017-02-21 | 2017-05-24 | 浙江海力股份有限公司 | Support frame type plug-sleeve-free roller theftproof screw nut |
-
1998
- 1998-09-18 CN CN 98208255 patent/CN2371387Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386534C (en) * | 2006-06-23 | 2008-05-07 | 孙于清 | Firm screw cap for stopping move back |
| CN106246691A (en) * | 2015-06-12 | 2016-12-21 | 现代自动车株式会社 | Anti-theft nut |
| CN106246691B (en) * | 2015-06-12 | 2019-08-30 | 现代自动车株式会社 | Anti-theft nut |
| CN106704341A (en) * | 2017-02-21 | 2017-05-24 | 浙江海力股份有限公司 | Support frame type plug-sleeve-free roller theftproof screw nut |
| CN106704341B (en) * | 2017-02-21 | 2023-01-13 | 浙江海力股份有限公司 | Support type anti-theft nut without sleeve and roller |
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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 |