CN204113863U - Anti-theft bolt - Google Patents
Anti-theft bolt Download PDFInfo
- Publication number
- CN204113863U CN204113863U CN201420542161.9U CN201420542161U CN204113863U CN 204113863 U CN204113863 U CN 204113863U CN 201420542161 U CN201420542161 U CN 201420542161U CN 204113863 U CN204113863 U CN 204113863U
- Authority
- CN
- China
- Prior art keywords
- nut
- screw rod
- fixture block
- groove
- draw
- 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
Links
Abstract
The utility model discloses a kind of anti-theft bolt, it comprises screw rod and nut, and described screw rod is provided with cavity near nut one end, is provided with restraining groove in described cavity, described nut one end is provided with guide rod, described guide rod is tapered, and described guide rod is provided with limiting stopper away from nut one end, and described leader casing is located in described cavity, described screw rod is provided with swollen portion near nut one end, described swollen portion is provided with draw-in groove, and described nut is provided with fixture block near screw rod side, described fixture block and described draw-in groove clamping.When bolt is screwed into by needs, during mounting article, by the draw-in groove clamping in the fixture block on nut and swollen portion; then twist nut with screw-driver, twist in process, screw rod slowly sinks; after swollen portion is screwed into tapped hole completely; fixture block and exact separation, compared to current anti-theft bolt, by setting nut and screw limiting; after screw rod is screwed into; nut serves protective action to screw rod, and thief cannot be turned screw rod and steal by the draw-in groove on screw rod, Security is higher.
Description
Technical field
The utility model relates to a kind of fastening piece, and more particularly, it relates to a kind of bolt.
Background technique
Bolt is the fastening piece that mechanical field is often used, and bolt generally comprises nut and threaded stem, and when bolt is fixed, by twisting nut, being screwed in tapped hole by screw rod and being fixed, fixed structure is comparatively stable.
At present, bolt on market, when threaded stem and nut, integral type is arranged, after bolt is fixing, nut is exposed at outside link, some lawless persons can twist nut by the instrument such as screw-driver or spanner, bolt is twisted out, then the object be fixed is stolen, afterwards market there is a part of anti-theft bolt, this anti-theft bolt is by nut and the split type setting of threaded stem, nut and threaded stem removably connect, when by being fixed with this anti-theft bolt, first nut and threaded stem clamping is used, threaded stem is screwed into tapped hole is fixed by twisting nut, then nut of dismantling carries out antitheft, but this anti-theft bolt has a defect, namely be after threaded stem is screwed into tapped hole, after nut is removed, the draw-in groove of threaded stem is exposed, lawless person still can pass through instrument, coordinate with these draw-in grooves, then threaded stem is twisted, bolt is back-outed come, then fixture is stolen.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of anti-theft effect better anti-theft bolt.
For achieving the above object, the utility model provides following technological scheme: a kind of anti-theft bolt, it comprises screw rod and nut, described screw rod is provided with cavity near nut one end, restraining groove is provided with in described cavity, described nut one end is provided with guide rod, described guide rod is tapered, described guide rod is provided with limiting stopper away from nut one end, described leader casing is located in described cavity, and described screw rod is provided with swollen portion near nut one end, and described swollen portion is provided with draw-in groove, described nut is provided with fixture block near screw rod side, described fixture block and described draw-in groove clamping.
By adopting technique scheme, when bolt is screwed into by needs, during mounting article, by the draw-in groove clamping in the fixture block on nut and swollen portion, then nut is twisted with screw-driver, nut twist drive bolt rotary, screw rod is screwed in screw and is fixed, twist in process, screw rod slowly sinks, swollen portion shrinks due to the extruding of tapped hole sidewall, fixture block extruding is risen by the contraction in swollen portion simultaneously, after swollen portion is screwed into tapped hole completely, fixture block and exact separation, continue to turn nut and can not drive twisting of screw rod, nut cannot pull away screw rod due to the setting of restraining groove and limiting stopper, compared to current anti-theft bolt, by nut and screw limiting are set, after screw rod is screwed into, nut serves protective action to screw rod, thief cannot be turned screw rod and steal by the draw-in groove on screw rod, Security is higher.
The utility model is set to further: it is flap that described swollen portion is set to by some metal clips circumferential array.
By adopting technique scheme, swollen portion is set to metal clips, after metal clips and fixture block clamping can be ensured, rigid required when twisting nut, while also can meet desired swollen property, and manufacturing process is simple.
Further: the corner of described fixture block is fillet.
By adopting technique scheme, described fixture block corner is that fillet is arranged, and make swollen portion when being squeezed contraction, fixture block can be slided relative on draw-in groove more smoothly, until last fixture block departs from draw-in groove.
Compared with prior art, the utility model has the advantage of: different anti-theft bolt in the past, by arranging a device that nut can be allowed to protect screw rod, achieve the lifting of anti-theft screw cap anti-theft effect, structure is simple, and novelty is strong.
Accompanying drawing explanation
Fig. 1 is the phase diagram one of the utility model anti-theft bolt embodiment;
Fig. 2 is the phase diagram two of the utility model anti-theft bolt embodiment;
Fig. 3 is the phase diagram three of the utility model anti-theft bolt embodiment;
Fig. 4 is the partial sectional view of the utility model anti-theft bolt embodiment;
Fig. 5 is the explosive view of the utility model anti-theft bolt embodiment.
Description of reference numerals: 1, screw rod; 11, cavity; 12, restraining groove; 2, nut; 21, fixture block; 22, guide rod; 23, limiting stopper; 3, metal clips; 31, draw-in groove; 4, tapped hole.
Embodiment
With reference to accompanying drawing, the utility model anti-theft bolt embodiment is described in further details.
See Fig. 1 to 4, a kind of anti-theft bolt, it comprises screw rod 1, nut 2, described screw rod 1 is provided with cavity 11 near nut 2 one end, restraining groove 12 is provided with in described cavity 11, described nut 2 one end is provided with guide rod 22, described guide rod 22 is provided with limiting stopper 23 away from nut 2 one end, and described guide rod 22 is sheathed in described cavity 11, and described guide rod 22 is tapered, described screw rod 1 is provided with metal clips 3 near nut 2 one end, described metal clips 3 is provided with draw-in groove 31, and described nut 2 is provided with fixture block 21 near screw rod 1 side, described fixture block 21 and the clamping of described draw-in groove 31.
By adopting technique scheme, when bolt is screwed into by needs, during mounting article, by draw-in groove 31 clamping of the fixture block 21 on nut 2 with metal clips 3, then nut 2 is twisted with screw-driver, twisting of nut 2 drives screw rod 1 to rotate, screw rod 1 is screwed in screw and is fixed, twist in process, screw rod 1 slowly sinks, metal clips 3 shrinks due to the extruding of tapped hole 4 sidewall, fixture block 21 is extruded rising by the contraction in swollen portion simultaneously, after swollen portion is screwed into tapped hole 4 completely, fixture block 21 is separated with draw-in groove 31, continue to turn nut 2 and can not drive twisting of screw rod 1, nut 2 cannot pull away screw rod 1 due to the setting of restraining groove 12 and limiting stopper 23, compared to current anti-theft bolt, by by nut 2 and the spacing setting of screw rod 1, after screw rod 1 is screwed into, nut 2 pairs of screw rods 1 serve protective action, thief cannot be turned screw rod 1 and steal by the draw-in groove 31 on screw rod 1, Security is higher.
See Fig. 2, when needing screw rod 1 to be screwed into tapped hole 4, screw rod 1 is aimed at tapped hole 4, then make the fixture block 21 of nut 2 and draw-in groove 31 clamping of metal clips 3, twist nut 2 by screw-driver subsequently, make nut 2 drive screw rod 1 to rotate, screw rod 1 is screwed in tapped hole 4, simple to operate when twisting nut 2, convenient, twist speed.
See Fig. 3, when screw rod 1 is screwed in tapped hole 4, screw rod 1 slowly sinks, when metal clips 3 is screwed into tapped hole 4, metal clips 3 is subject to the extruding of tapped hole 4 sidewall, metal clips 3 shrinks, and extrudes fixture block 21 in metal clips 3 contraction process, and fixture block 21 is relative to sliding on draw-in groove 31, be screwed into after tapped hole 4 completely until metal clips 3, fixture block 21 and draw-in groove 31 uncoupling, continue to turn nut 2, screw rod 1 is not along with nut 2 rotates.
See Fig. 4; screw rod 1 is provided with cavity 11, is provided with restraining groove 12 in cavity 11, and nut 2 is provided with guide rod 22; guide rod 22 is provided with limiting stopper 23; nut 2 is sheathed in cavity 11 by guide rod 22, and nut 2 can relative to screw rod 1 slippage, but due to the setting of limiting stopper 23 and restraining groove 12; nut 2 can not depart from screw rod 1; thus making nut 2 pairs of screw rods 1 have a protective action, the person of avoiding theft is by draw-in groove 31 rotating screw bolt 1 on screw rod 1, thus screw rod 1 of back-outing is stolen.
It should be noted that: described swollen portion can also have other structures to realize herein, the such as better engineering plastics of described swollen position toughness, but consider the intensity of engineering plastics, the metal clips 3 that preferred the present embodiment is used, metal clips 3 is fixed by welding on threaded stem.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. an anti-theft bolt, it comprises screw rod and nut, it is characterized in that: described screw rod is provided with cavity near nut one end, is provided with restraining groove in described cavity, described nut one end is provided with guide rod, described guide rod is tapered, and described guide rod is provided with limiting stopper away from nut one end, and described leader casing is located in described cavity, described screw rod is provided with swollen portion near nut one end, described swollen portion is provided with draw-in groove, and described nut is provided with fixture block near screw rod side, described fixture block and described draw-in groove clamping.
2. anti-theft bolt according to claim 1, is characterized in that: it is flap that described swollen portion is set to by some metal clips circumferential array.
3. anti-theft bolt according to claim 1 and 2, is characterized in that: the corner of described fixture block is fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542161.9U CN204113863U (en) | 2014-09-20 | 2014-09-20 | Anti-theft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542161.9U CN204113863U (en) | 2014-09-20 | 2014-09-20 | Anti-theft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113863U true CN204113863U (en) | 2015-01-21 |
Family
ID=52331176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420542161.9U Expired - Fee Related CN204113863U (en) | 2014-09-20 | 2014-09-20 | Anti-theft bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113863U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340238A (en) * | 2018-12-07 | 2019-02-15 | 浙江盛世瑞金紧固件有限公司 | A kind of anti-theft bolt |
-
2014
- 2014-09-20 CN CN201420542161.9U patent/CN204113863U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340238A (en) * | 2018-12-07 | 2019-02-15 | 浙江盛世瑞金紧固件有限公司 | A kind of anti-theft bolt |
| CN109340238B (en) * | 2018-12-07 | 2024-05-07 | 浙江盛世瑞金紧固件股份有限公司 | Antitheft bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20150920 |
|
| EXPY | Termination of patent right or utility model |