CN203348286U - Disassembly prevention antitheft bolt and special tool - Google Patents
Disassembly prevention antitheft bolt and special tool Download PDFInfo
- Publication number
- CN203348286U CN203348286U CN 201320411391 CN201320411391U CN203348286U CN 203348286 U CN203348286 U CN 203348286U CN 201320411391 CN201320411391 CN 201320411391 CN 201320411391 U CN201320411391 U CN 201320411391U CN 203348286 U CN203348286 U CN 203348286U
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- pit
- burglary
- disassembling
- special tool
- bolt
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Abstract
The utility model relates to a fastening part, in particular to a disassembly prevention antitheft bolt and a special tool. The disassembly prevention antitheft bolt comprises a head portion and a screw and is characterized in that the head portion is in a shape of a semi-sphere, a pit is arranged in the middle of the head portion, and two arc-shaped grooves axisymmetric with the pit serving as a center are arranged on the same horizontal plane of the inner wall of the pit. The special tool used cooperatively with the disassembly prevention antitheft bolt comprises a rod portion capable of being inserted into the pit and is characterized in that two key tongues are arranged on the rod portion, can extend out of and retract into the rod portion through springs, can be contained in the arc-shaped grooves, and are distributed axisymmetrically with the rod portion serving as a center. The disassembly prevention antitheft bolt is simple in structure, low in cost, convenient to control, good in antitheft effect and strong in practical applicability.
Description
Technical field
The utility model relates to a kind of fastening piece, relates in particular to a kind of Anti-disassembling burglary-resisting bolt and special tool.
Background technique
Bolt and nut is fastening piece commonly used, connection and the fixing indispensable vitals of device between mechanical part, bolt and nut uses very convenient as fastening piece, install easily, dismounting also is easy to, but for the equipment in the Infrastructure that is in field, the photovoltaic module equipment that particularly value ratio is higher, because bolt and nut can be dismantled easily, often by the lawless person, stolen or destroy, cause both unsafe hidden danger or directly destruction to these Infrastructure, for solving this difficult problem, many people research and develop diversified anti-theft bolt, as publication number is CN101737396A, the Chinese utility model patent that name is called " anti-theft bolt " discloses a kind of anti-theft bolt, comprise bolt shank and bolt head.Wherein, bolt head comprises the sphere that He Yu bottom surface, bottom surface connects, and described sphere is comprised of two above continuous curve surfaces, and a side margin of curved surface is overlapped in another curved surface be adjacent, and the curved surface overlapping is provided with draw-in groove.The structure that sphere directly combines with bottom surface, make common wrench hold bolt and turn on.Overlapping and the structure of single direction draw-in groove is set at overlapping by plural continuous curve surface, make on bolt screw tight after, can't turn on by identical instrument.But still can by the lawless person, be utilized the instruments such as transformed screwdriver and hammer to dismantle, anti-theft effect is undesirable.Also have some anti-theft bolts, anti-theft effect can reach requirement but component are many, complex structure, and manufacture cost is high.
Summary of the invention
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, solves the difficult problem that existing photovoltaic module is used conventional bolt often to lose, and a kind of Anti-disassembling burglary-resisting bolt is provided.Another purpose of the present utility model is to provide a kind of special tool be used in conjunction with Anti-disassembling burglary-resisting bolt.
The purpose of this utility model is achieved through the following technical solutions:
This Anti-disassembling burglary-resisting bolt, comprise head and screw rod, it is characterized in that described head is that semicircle is spherical, and there is a pit at middle part, offers two on the same level of the inwall of pit with the axisymmetric curve bath of pit centres.
As preferably, the arc length of each curve bath accounts for 1/4th of pit circumference circle.
Further preferably, the cross section of curve bath is semicircle.
The special tool be used in conjunction with Anti-disassembling burglary-resisting bolt, comprise a bar section that can insert pit, it is characterized in that two of described bar section installings can lean out with key tongue and this key tongue of retraction bar section and can be contained in curve bath by spring, two key tongues are symmetrical with bar section central shaft.
As preferably, described key tongue lean out and retraction partly spherical for semicircle.
Can also be preferably, lean out and the retraction of described key tongue are partly half cydariform.
The utlity model has following good effect: simple in structure, cost is low, control convenience, good anti-theft effect, practical.
The accompanying drawing explanation
Fig. 1 be the utility model tamper unload the anti-theft bolt structural representation;
Fig. 2 is the structural representation that of the present utility model and Anti-disassembling burglary-resisting bolt are used in conjunction with special tool;
Fig. 3 is Fig. 2 partial structurtes schematic diagram.
Wherein: 1 head, 2 screw rods, 11 pits, 111 curve baths, 3 bar sections, 4 springs, 5 key tongues.
Embodiment
By reference to the accompanying drawings, describe the utility model in detail, and provide specific embodiment, for further illustrating the utility model.
Mode of execution one: with reference to Fig. 1-2.This embodiment's Anti-disassembling burglary-resisting bolt, screw rod 2 is as good as with plain bolt, head 1 is that semicircle is spherical, there is a pit 11 at middle part, offer two on the same level of the inwall of pit with the axisymmetric curve bath 111 of pit centres, the arc length of each curve bath accounts for 1/4th of pit circumference circle, and the cross section of curve bath is semicircle.
The special tool be used in conjunction with aforementioned Anti-disassembling burglary-resisting bolt, comprise a bar section 3 that can insert pit 11, two of bar section installings can lean out the key tongue 5 with retraction bar section by spring 4, and this key tongue can be contained in curve bath 111, and two key tongues are symmetrical with bar section central shaft.The leant out part of key tongue 5 is that semicircle is spherical.
During use, when the bar section 3 by special tool fashionable to pit 11 interpolations of Anti-disassembling burglary-resisting bolt, effect due to power, in key tongue 5 retraction bar sections 3, the while left rotation and right rotation, in key tongue 5 is encountered pit 11 curve bath 111 time, key tongue 5 is because the effect of spring 4 elastic force leans out in curve bath 111, when special tool is further rotated, the end that key tongue 5 forwards curve bath 111 to can't be rotated further, thereby drive Anti-disassembling burglary-resisting bolt locking, it is very tight that this mode can not be locked, because being shaped as of key tongue 5 is spherical, put in more effort, key tongue 5 still can retraction bar section 3 in.The process of unclamping similarly.
Mode of execution two: with reference to Fig. 1-2.With reference to Fig. 1-2.This embodiment's Anti-disassembling burglary-resisting bolt, screw rod 2 is as good as with plain bolt, head 1 is that semicircle is spherical, there is a pit 11 at middle part, offer two on the same level of the inwall of pit with the axisymmetric curve bath 111 of pit centres, the arc length of each curve bath accounts for 1/4th of pit circumference circle, and the cross section of curve bath is semicircle.
The special tool be used in conjunction with aforementioned Anti-disassembling burglary-resisting bolt, comprise a bar section 3 that can insert pit 11, two of bar section installings can lean out the key tongue 5 with retraction bar section by spring 4, and this key tongue can be contained in curve bath 111, and two key tongues are symmetrical with bar section central shaft.The leant out part of key tongue 5 is half cydariform.
During use, when the bar section 3 by special tool fashionable to pit 11 interpolations of Anti-disassembling burglary-resisting bolt, effect due to power, in key tongue 5 retraction bar sections 3, the while left rotation and right rotation, in key tongue 5 is encountered pit 11 curve bath 111 time, key tongue 5 is because the effect of spring 4 elastic force leans out in curve bath 111, when special tool is further rotated, the end that key tongue 5 forwards curve bath 111 to can't be rotated further, thereby drive Anti-disassembling burglary-resisting bolt locking, it is very tight that this mode can be locked, because key tongue 5 be shaped as half cydariform, what with the end of curve bath 111, contact is a plane, even add again much strength, key tongue 5 still can retraction bar section 3 in.The process of unclamping similarly.
Be understandable that, only provided part mode of execution of the present utility model in this specification, according to above-mentioned principle, the utility model can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the utility model is not limited to embodiment disclosed and described above, to modifications and changes more of the present utility model, also should fall in the protection domain of claim of this patent.In addition, although used some specific terms as dead bolt in this specification, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (6)
1. Anti-disassembling burglary-resisting bolt, comprise head (1) and screw rod (2), it is characterized in that head is that semicircle is spherical, and there is a pit (11) at middle part, offers two on the same level of pit inwall with the axisymmetric curve bath of pit centres (111).
2. Anti-disassembling burglary-resisting bolt according to claim 1, is characterized in that the arc length of each curve bath (111) accounts for 1/4th of pit circumference circle.
3. Anti-disassembling burglary-resisting bolt according to claim 1 and 2, is characterized in that the cross section of described curve bath (111) is for semicircle.
4. the special tool be used in conjunction with Anti-disassembling burglary-resisting bolt claimed in claim 1, comprise a bar section (3) that can insert pit (11), it is characterized in that two of described bar section installings can lean out with key tongue (5) and this key tongue of retraction bar section and can be contained in curve bath (111) by spring (4), two key tongues are symmetrical with bar section central shaft.
5. the special tool be used in conjunction with Anti-disassembling burglary-resisting bolt according to claim 4, is characterized in that the leant out part of described key tongue (5) is spherical for semicircle.
6. the special tool that according to claim 4 and Anti-disassembling burglary-resisting bolt is used in conjunction with, the leant out part that it is characterized in that described key tongue (111) is half cydariform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320411391 CN203348286U (en) | 2013-07-11 | 2013-07-11 | Disassembly prevention antitheft bolt and special tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320411391 CN203348286U (en) | 2013-07-11 | 2013-07-11 | Disassembly prevention antitheft bolt and special tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203348286U true CN203348286U (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320411391 Expired - Fee Related CN203348286U (en) | 2013-07-11 | 2013-07-11 | Disassembly prevention antitheft bolt and special tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN203348286U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588085A (en) * | 2017-08-09 | 2018-01-16 | 宁波市镇海华隆紧固件有限公司 | A kind of antitheft bolt device |
-
2013
- 2013-07-11 CN CN 201320411391 patent/CN203348286U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588085A (en) * | 2017-08-09 | 2018-01-16 | 宁波市镇海华隆紧固件有限公司 | A kind of antitheft bolt device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20210711 |