CN202144824U - Anti-theft bolt - Google Patents
Anti-theft bolt Download PDFInfo
- Publication number
- CN202144824U CN202144824U CN201120251235U CN201120251235U CN202144824U CN 202144824 U CN202144824 U CN 202144824U CN 201120251235 U CN201120251235 U CN 201120251235U CN 201120251235 U CN201120251235 U CN 201120251235U CN 202144824 U CN202144824 U CN 202144824U
- Authority
- CN
- China
- Prior art keywords
- nut
- key
- pinning
- screw rod
- lock
- 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
The utility model discloses an anti-theft bolt, which consists of a screw, a nut, a nut lock pin and a key, wherein a lock groove is longitudinally arranged on the outer wall of the screw; a through lock hole is formed on the side wall of the nut; the nut is screwed on the screw; the lock hole corresponds to the lock groove; a key hole is longitudinally formed along the end part of the nut lock pin; the nut lock pin is screwed in the lock hole through the key; and the inner end of the nut lock pin is arranged in the lock groove of the screw. The nut lock pin can be screwed in or out by inserting the key into the lock hole on the nut lock pin to rotate; and the key corresponds to the key hole in shape. The anti-theft bolt is simple to manufacture and mount, has strong anti-theft function, can be repeatedly used, and saves cost.
Description
Technical field
The utility model relates to a kind of bolt, particularly a kind of anti-theft bolt.
Background technique
Plain bolt is a kind of common fastening piece, because of it is convenient to installing/dismounting, so be applied in widely on the various facilities.Yet some need a large amount of use plain bolts like oil field equipment because be located at the open air, offender's bolt of just dismantling is easily stolen equipment, has caused loss both for country and individual property, has caused hidden danger to public safety again.Therefore, some disposable anti-theft bolts occurred, promptly this kind anti-theft bolt just can not be dismantled once using, and only thoroughly destroys, and such anti-theft bolt but has awkward shortcoming.Therefore, the coexistence of the detachability of bolt and anti-theft just seems particularly important.
Summary of the invention
The purpose of the utility model provides a kind of dismountable anti-theft bolt.
The utility model is made up of screw rod, nut, nut pinning and key, vertically offers locked groove on the screw rod outer wall, and the sidewall of nut offers the lockhole of perforation; Nut is arranged on the screw rod, and lockhole is corresponding with locked groove, and nut pinning end longitudinally offers keyhole; The nut pinning uses key to be arranged in the lockhole; The inner of nut pinning is arranged in the locked groove of screw rod, key is inserted in the keyhole of nut pinning and rotates, can be with precession of nut pinning or back-out; Said keyhole is semicircle, and key is semicircle and corresponding with keyhole.
The working procedure and the principle of the utility model are:
Nut with plain nut or the utility model is arranged on the screw rod earlier, and this nut plays the locking effect of bolt;
Offering the nut that connects lockhole with one again is arranged on the screw rod; Make lockhole corresponding with locked groove; Key is inserted in the keyhole of nut pinning and rotate, the nut pinning is screwed in the lockhole, the inner of nut pinning is arranged in the locked groove of screw rod; Extract key, this nut plays the antitheft effect of bolt.
The shape of described key and the shape of keyhole can also be triangle, rectangle, ellipse.
The beneficial effect of the utility model is: the utility model manufacturing is installed simple, and anti-theft feature is strong, and is reusable, saves cost.
Description of drawings
Fig. 1 is the utility model embodiment's a plan view.
Fig. 2 is the plan view of the utility model embodiment's screw rod.
Fig. 3 is the utility model embodiment's a nut pinning enlarged diagram.
Fig. 4 is the utility model embodiment's a key enlarged diagram.
Embodiment
See also Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, present embodiment is made up of screw rod 1, nut 2, nut pinning 3 and key 4, vertically offers locked groove 5 on screw rod 1 outer wall; The sidewall of nut 2 offers the lockhole 6 of perforation, and nut 2 is arranged on the screw rod 1, and lockhole 6 is corresponding with locked groove 5; Nut pinning 3 ends longitudinally offer keyhole 7, and nut pinning 3 uses key 4 to be arranged in the lockhole 6, and the inner of nut pinning 3 is arranged in the locked groove 5 of screw rod 1; Rotate in the keyhole 7 with key 4 insertion nut pinnings 3; Can be with 3 precessions of nut pinning or back-out, said keyhole 7 is semicircle, key 4 is semicircle and corresponding with keyhole 7.
The working procedure and the principle of present embodiment are:
Earlier plain nut or nut 2 are arranged on the screw rod 1, this nut plays the locking effect of bolt;
Offering the nut 2 that connects lockhole 6 with one again is arranged on the screw rod 1; Make lockhole 6 corresponding with locked groove 5; Rotate in the keyhole 7 with key 4 insertion nut pinnings 3, nut pinning 3 is screwed in the lockholes 6, the inner of nut pinning 3 is arranged in the locked groove 5 of screw rod 1; Extract key 4, this nut 2 plays the antitheft effect of bolt.
Claims (2)
1. anti-theft bolt; It is characterized in that: be made up of screw rod (1), nut (2), nut pinning (3) and key (4), vertically offer locked groove (5) on screw rod (1) outer wall, the sidewall of nut (2) offers the lockhole (6) of perforation; Nut (2) is arranged on the screw rod (1); Lockhole (6) is corresponding with locked groove (5), and nut pinning (3) end longitudinally offers keyhole (7), and nut pinning (3) uses key (4) to be arranged in the lockhole (6); The inner of nut pinning (3) is arranged in the locked groove (5) of screw rod (1); With middle rotation of keyhole (7) that key (4) inserts nut pinning (3), can be with (3) precession of nut pinning or back-out, the shape of said key (4) is corresponding with the shape of keyhole (7).
2. a kind of anti-theft bolt according to claim 1 is characterized in that: the shape of said key (4) and keyhole (7) be shaped as semicircle or triangle or rectangle or ellipse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120251235U CN202144824U (en) | 2011-07-16 | 2011-07-16 | Anti-theft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120251235U CN202144824U (en) | 2011-07-16 | 2011-07-16 | Anti-theft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202144824U true CN202144824U (en) | 2012-02-15 |
Family
ID=45580755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120251235U Expired - Fee Related CN202144824U (en) | 2011-07-16 | 2011-07-16 | Anti-theft bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202144824U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807260A (en) * | 2012-11-15 | 2014-05-21 | 孙德兴 | Mortise-tenon serial connection pin |
| CN105201997A (en) * | 2015-11-06 | 2015-12-30 | 国网山东平度市供电公司 | Stealing-preventing bolt |
| CN109306994A (en) * | 2018-11-16 | 2019-02-05 | 佛山科学技术学院 | A kind of anti-theft nut structure |
| CN109812242A (en) * | 2019-02-27 | 2019-05-28 | 江苏雄越石油机械设备制造有限公司 | A kind of theftproof collar clamp for oil production wellhead |
-
2011
- 2011-07-16 CN CN201120251235U patent/CN202144824U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807260A (en) * | 2012-11-15 | 2014-05-21 | 孙德兴 | Mortise-tenon serial connection pin |
| CN103807260B (en) * | 2012-11-15 | 2019-03-26 | 孙德兴 | Bolt is connected in series in mortise and tenon |
| CN105201997A (en) * | 2015-11-06 | 2015-12-30 | 国网山东平度市供电公司 | Stealing-preventing bolt |
| CN109306994A (en) * | 2018-11-16 | 2019-02-05 | 佛山科学技术学院 | A kind of anti-theft nut structure |
| CN109306994B (en) * | 2018-11-16 | 2021-04-20 | 佛山科学技术学院 | Anti-theft nut structure |
| CN109812242A (en) * | 2019-02-27 | 2019-05-28 | 江苏雄越石油机械设备制造有限公司 | A kind of theftproof collar clamp for oil production wellhead |
| CN109812242B (en) * | 2019-02-27 | 2021-03-26 | 江苏雄越石油机械设备制造有限公司 | Oil recovery well head theftproof clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120215 Termination date: 20120716 |