CN201045373Y - Anti-theft bolt - Google Patents
Anti-theft bolt Download PDFInfo
- Publication number
- CN201045373Y CN201045373Y CNU2007200237281U CN200720023728U CN201045373Y CN 201045373 Y CN201045373 Y CN 201045373Y CN U2007200237281 U CNU2007200237281 U CN U2007200237281U CN 200720023728 U CN200720023728 U CN 200720023728U CN 201045373 Y CN201045373 Y CN 201045373Y
- Authority
- CN
- China
- Prior art keywords
- bolt
- sealing cap
- cylinder head
- retaining ring
- solid sealing
- 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 a burglarproof bolt which comprises a flat bolt, wherein an annular groove is positioned on the head portion of the flat bolt, a retaining ring is installed in the annular groove, the head portion of the flat bolt is provided with a fitting circular fixed-sealing cap, and an inner annular groove corresponding to the retaining ring is arranged on the circular fixed-sealing cap, the retaining ring is a trapezoidal retaining ring, and an inner inclined surface is arranged on the edge of the circular fixed-sealing cap. Due to that the shapes of the flat bolt and the circular fixed-sealing cap are both circular, the circular fixed-sealing cap can only rotate in the head portion of the flat bolt and can not be prized up under the action of the retaining ring, and the flat bolt can not be demounted even using common tools, thereby greatly enhancing the burglarproof performance of the bolt, and preventing license plates from losing.
Description
Technical field
The utility model relates to a kind of anti-theft bolt, especially a kind of license-plate anti-theft bolt.
Background technique
Existing automobile license plate; generally be to install by bolt; bolt head after installation adds plastic cap, the solid sealing cap of aluminum alloy and the solid sealing cap of stainless steel again; the car plate fender bracket of employing license-plate anti-theft frame that also has or use band burglarproof lock; above-mentioned car plate installation form all can not fundamentally solve the license-plate anti-theft problem; cause car plate often to be lost, make troubles for people's trip.
Summary of the invention
Provide car plate after a kind of install to be difficult for the anti-theft bolt of being removed on the technical problems to be solved in the utility model.
For solving the problems of the technologies described above, the utility model comprises cylinder head bolt, and its structural feature is that the head at cylinder head bolt is provided with ring shaped slot, is installed with ring washer in the ring shaped slot, head at cylinder head bolt is fitted with circular solid sealing cap, and circular solid sealing cap is provided with the inner ring type groove corresponding with ring washer.
As to improvement of the present utility model, described ring washer is trapezoidal ring washer; On described circular Gu Fengmaokou edge, be provided with interior inclined-plane.
After adopting said structure, earlier car plate is fixed with the above-mentioned cylinder head bolt that is installed with ring washer, head at cylinder head bolt covers circular solid sealing cap then, because the sealing cap external shape is all rounded admittedly for cylinder head bolt, circle, circular solid sealing cap can only freely rotate at the head of cylinder head bolt, circular solid sealing cap is under can not being prized under the effect of ring washer, therefore cylinder head bolt can not be removed, adopt general tool also bolt can't be unloaded, so can improve its theftproof performance greatly, prevent that car plate from losing.And adopt trapezoidal ring washer, and on circular Gu Fengmaokou edge, be provided with interior inclined-plane, make the assembling between circular solid sealing cap and the cylinder head bolt easier.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:
Fig. 1 is to overall structure schematic representation of the present utility model;
Fig. 2 is the structural representation of cylinder head bolt among Fig. 1;
Fig. 3 is the vertical section structure schematic representation of ring washer among Fig. 1;
Fig. 4 is the plan view of Fig. 3;
Fig. 5 is the vertical section structure schematic representation of circular solid sealing cap among Fig. 1.
Embodiment
With reference to accompanying drawing, this anti-theft bolt comprises cylinder head bolt 1, and the top 5 of cylinder head bolt 1 can be interior hexagon, also can be in-line or cross.Head at cylinder head bolt 1 is provided with ring shaped slot 4, this ring shaped slot 4 roughly is positioned at the vertical intermediate portion of cylinder head bolt 1 head, be installed with ring washer 2 in the ring shaped slot 4, be fitted with circular solid sealing cap 3 at the head of cylinder head bolt 1, circular solid sealing cap 3 is provided with the inner ring type groove 7 corresponding with ring washer 2.In order to make the assembling between circular solid sealing cap and the cylinder head bolt easier, described ring washer 2 is designed to trapezoidal ring washer (referring to Fig. 3), and 3 mouthfuls of solid sealing caps of described circle are along being provided with the interior inclined-plane 6 corresponding with trapezoidal ring washer shape, circular solid sealing cap and the equipped use of cylinder head bolt, circular solid sealing cap adopts stainless steel material to make.
Claims (3)
1. anti-theft bolt, comprise cylinder head bolt (1), it is characterized in that being provided with ring shaped slot (4) at the head of cylinder head bolt (1), be installed with ring washer (2) in the ring shaped slot (4), head at cylinder head bolt (1) is fitted with circular solid sealing cap (3), and circular solid sealing cap (3) is provided with the inner ring type groove (7) corresponding with ring washer (2).
2. anti-theft bolt according to claim 1 is characterized in that described ring washer (2) is trapezoidal ring washer.
3. anti-theft bolt according to claim 2 is characterized in that solid sealing cap (3) mouth of described circle is along being provided with interior inclined-plane (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200237281U CN201045373Y (en) | 2007-06-15 | 2007-06-15 | Anti-theft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200237281U CN201045373Y (en) | 2007-06-15 | 2007-06-15 | Anti-theft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201045373Y true CN201045373Y (en) | 2008-04-09 |
Family
ID=39308845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200237281U Expired - Fee Related CN201045373Y (en) | 2007-06-15 | 2007-06-15 | Anti-theft bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201045373Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162486A (en) * | 2011-04-13 | 2011-08-24 | 常州市武进湖塘鸿盛机械配件厂 | Special-shaped outer ridge automobile tyre theft-proof bolt/nut and transition spanner |
| TWI418713B (en) * | 2008-09-11 | 2013-12-11 | Yu Guang Lai | The burglarproof device of the bolt |
| CN108488188A (en) * | 2018-06-04 | 2018-09-04 | 海盐兴隆紧固件有限公司 | A kind of antitheft hex bolts |
| CN108953343A (en) * | 2017-05-19 | 2018-12-07 | 严振宏 | The fastener of tool-free dismounting |
| CN109026949A (en) * | 2018-08-13 | 2018-12-18 | 徐州圣旺达液压机械有限公司 | A kind of hydraulic cylinder mounting device with protective shell |
| CN110107587A (en) * | 2019-06-04 | 2019-08-09 | 海盐鼎丰紧固件有限公司 | A kind of combination type theft-proof screw bolt with protection cap |
-
2007
- 2007-06-15 CN CNU2007200237281U patent/CN201045373Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI418713B (en) * | 2008-09-11 | 2013-12-11 | Yu Guang Lai | The burglarproof device of the bolt |
| CN102162486A (en) * | 2011-04-13 | 2011-08-24 | 常州市武进湖塘鸿盛机械配件厂 | Special-shaped outer ridge automobile tyre theft-proof bolt/nut and transition spanner |
| CN108953343A (en) * | 2017-05-19 | 2018-12-07 | 严振宏 | The fastener of tool-free dismounting |
| CN108953343B (en) * | 2017-05-19 | 2020-09-11 | 严振宏 | Fastener capable of being disassembled and assembled without tool |
| CN108488188A (en) * | 2018-06-04 | 2018-09-04 | 海盐兴隆紧固件有限公司 | A kind of antitheft hex bolts |
| CN109026949A (en) * | 2018-08-13 | 2018-12-18 | 徐州圣旺达液压机械有限公司 | A kind of hydraulic cylinder mounting device with protective shell |
| CN110107587A (en) * | 2019-06-04 | 2019-08-09 | 海盐鼎丰紧固件有限公司 | A kind of combination type theft-proof screw bolt with protection cap |
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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: 20080409 |