CN101126409B - Theft-proof screw bolt and the dedicated tool - Google Patents
Theft-proof screw bolt and the dedicated tool Download PDFInfo
- Publication number
- CN101126409B CN101126409B CN200710027515A CN200710027515A CN101126409B CN 101126409 B CN101126409 B CN 101126409B CN 200710027515 A CN200710027515 A CN 200710027515A CN 200710027515 A CN200710027515 A CN 200710027515A CN 101126409 B CN101126409 B CN 101126409B
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- nut
- bolt
- screw rod
- counterbore
- theft bolt
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Abstract
The invention relates to an anti-theft bolt and a special matching tool, including a bolt rod and a bolt cap which are mutually fixed or connected by the thread. A counterbore with internal thread is opened on the top surface of the bolt rod or the bolt cap, the direction of the internal thread in the counterbore is the same as the thread on the bolt rod and a friction groove is arranged along the radial direction on the top surface. The special opening tool for the anti-theft bolt is similar in the shape with the ordinary screwdriver, meanwhile, the surface of the operation rod is provided with the outer thread which matches with the thread in the counterbore, and a holding device, the lower end surface of which matches with the shape of the top surface of the bolt rod or the bolt cap, is sleeved on the operation rod, the holding device works under the pushing force of a locating piece and a butterfly-shaped handle on the locating piece. The invention is simple and practical, easy to carry and has low cost in manufacturing; and can be widely applied for the fixing of outdoor facility or equipment and can provide different bolts and special opening tool for different users. The bolt is difficult to be disassembled without the special matching tool, which can effectively prevent the act of theft and provide effective safety guarantee for the outdoor equipment.
Description
Technical field
The present invention relates to a kind of bolt, be meant a kind of outdoor anti-theft bolt and supporting special opening instrument thereof especially.
Background technique
Have stable political situation community installations, equipment of at present a lot of cities often suffers to steal, usurp, destroy, for example manhole cover, street lamp facility, cable etc.These facilities, equipment do not use effective anti-theft measure when installing or only use simple tapered end antitheft, cause these facilities, equipment to be destroyed easily and to be stolen.And the cost of production that has the higher antitheft equipment of Security now is higher, and input-output ratio is low, should not use on a large scale.
Summary of the invention
The problem that the present invention need solve provides a kind of simple and practical anti-theft bolt and supporting special opening instrument thereof.
Design a kind of anti-theft bolt according to the above-mentioned problem that need to solve, comprised screw rod and nut, be the nut that fuses with screw rod on the top of screw rod, the counterbore of tapping in the nut upper surface has, the direction of this screw thread is identical with hand of spiral on the screw rod; Or screw rod is threaded each other with nut, the counterbore of tapping on the top end of screw rod, having, and the direction of this screw thread is identical with hand of spiral on the screw rod.During enforcement, that the top of screw rod or the shape of nut can be is spherical, frustum or frustoconic shape, and nut also can be oblate cylindricality.Add man-hour, also radially be provided with frictional groove equably at the top end surface of screw rod or the upper surface of nut, this frictional groove is straight trough or arc groove.In addition, described counterbore and screw coaxial line or axis are parallel to each other.
Because special moulding, screwing and open all of anti-theft bolt of the present invention must be used special special opening instrument.The main body of this opener likeness in form normal screws is criticized, form by handle and working beam, the surface of working beam have with counterbore in the outside thread that is complementary of screw thread.This opener also comprises a binding clasp that cooperates with working beam, and the shape of the upper surface of the top of the lower end surface of binding clasp and screw rod or nut is complementary and is coupled.Described binding clasp is made up of the positioning block that is spirally connected with working beam that is connected on the clamp and the clamp that are enclosed within on the working beam, is fixed with the butterfly-shaped handle that is symmetrical in working beam on the positioning block end face.In addition, the Placement between clamp and positioning block is, has circular groove on the top of clamp, and cross-sectional shape is in the lower edge of positioning block of a shape turns over, and in the lower edge of turning over be fastened in the circular groove and can in groove, slide.For the needs that assemble, positioning block can be designed to two of symmetry, and two interblocks are inserted the involutory or negative and positive engaging each other of form with plug tenon.
The present invention is simple and practical, volume is little and sturdy and durable, be easy to processing, cost is low, except that nut need select for use as the case may be special-purpose form, supporting nut is a universal standard part; Can be widely used in the fixing of external facilities, equipment, can be different users and be equipped with different bolts and special opening, under the situation of not using supporting special tool, be difficult to demounting bolt, can effectively check larceny, for outdoor equipment provides effective safety guarantee.
Description of drawings
Fig. 1 is the assembling perspective view of the embodiment of the invention; Fig. 2 is the complete section schematic representation of Fig. 1; Fig. 3,4,5 is other three kinds of form embodiment of the invention complete section structural representations; Fig. 6 is the structural representation of the present invention in user mode; Fig. 7 is the special tool perspective view supporting with the present invention; Fig. 8 is a special tool pinching end cross-sectional view of the present invention; Fig. 9 is the scheme of installation of special tool pinching end of the present invention.
Embodiment
Embodiment one: following the invention will be further described with reference to the accompanying drawings.Major part among the figure has the afterburning hole 10 on the working beam 7, binding clasp 8, handle 9, handle of frictional groove 3, counterbore 4, the special tool of screw rod 1, nut 2, screw tip face or nut upper surface.
Fig. 1, the 2nd, a kind of basic embodiment schematic representation of anti-theft bolt of the present invention, Fig. 3 and Fig. 1,2 difference only are the screw tip shape, illustrated bolt is made up of screw rod 1 and nut 2 two-part, screw rod and nut mutually between for being threaded; Anti-theft bolt shown in Fig. 4,5 then is the conventional construction form that nut is positioned at screw tip and is connected to one.And inventive point of the present invention is, is provided with a counterbore type counterbore 3 overlapping or parallel with screw axial on screw tip or nut, and the hand of spiral in this hole is identical with hand of spiral on the screw rod.From figure as can be known, that the shape of screw tip or nut can be is spherical, frustum or frustoconic shape, and non-traditional polygonal and polygon; And when between nut and screw rod when being threaded, nut then is advisable with oblate cylindricality, the purpose of Chu Liing is when making nut play location, clamping action like this, can not be opened by common pliers or other non-special tools.Further improve anti-theft capability in order to implement, also can processing equably on the upper surface of the top of screw rod or nut (as adopting roller flower mode) go out frictional groove 4, the effect that frictional groove is set is to make it to cooperate increase frictional force with special-purpose instrument, makes things convenient for special tool installation and removal anti-theft bolt.
As shown in Figure 7, the main body of this special opening instrument likeness in form normal screws is criticized, forms by handle 9 and working beam 7, the surface of working beam 7 have with anti-theft bolt on the outside thread 71 that is complementary of the interior screw thread of counterbore 4, can be used for connecting anti-theft bolt.This opener also comprises a binding clasp 8 that cooperates with working beam 7, is used to clamp anti-theft bolt.As shown in Figure 8, be complementary and be coupled the frictional force between increase binding clasp 8 and the nut 2 in the shape of the lower end surface 84 of binding clasp 8 and nut 2 upper surfaces of anti-theft bolt.Described binding clasp 8 is made up of the positioning block 82 that is spirally connected with working beam 7 that is connected on the clamp 81 and the clamp 81 that are enclosed within on the working beam 7, is fixed with the butterfly-shaped handle 83 that is symmetrical in working beam 7 on positioning block 82 end faces.Among the figure, cross-sectional shape is in the lower edge of positioning block 82 of a shape turns over, and in the lower edge of turning over be fastened in the circular groove 85 and can in groove, slide, be convenient to allow clamp 81 engage with nut 2.When positioning block 82 when screw thread 71 directions of working beam 7 are rotated, positioning block 82 can move on working beam 7.As shown in Figure 9, for the needs that assemble, positioning block 82 can be designed to two of symmetry, and two interblocks are involutory with the slotting form of latch 86 tenons.Like this She Ji special tool can be fast, easily anti-theft bolt is fixed on the special tool, made things convenient for the installation and removal of anti-theft bolt.In addition, the Placement that clamp 81 and positioning block are 82 is to have circular groove 85 on the top of clamp 81.On handle, can be provided with the afterburning hole 10 that is used for mounting auxiliary.When getting rusty when being difficult to open, anti-theft bolt can open anti-theft bolt adding on the hole 10 mounting auxiliary.
When this anti-theft bolt is installed, as Fig. 2, shown in Figure 7, earlier the working beam on the opener of special use 7 is screwed in the counterbore 4 at anti-theft bolt top, rotating locating blocks 82 then, allow the nut 2 of clamp 81 near anti-theft bolt, make clamp folder 81 and nut 2 closures, at this moment binding clasp 8 has clamped anti-theft bolt.Just can anti-theft bolt be screwed in the screw 73 that is complementary with anti-theft bolt on upper strata fixture 71 and the lower floor's fixture 72 now by the opener of special use.Thereby upper strata fixture 71 and lower floor's fixture 72 are fixed together.Unclamp binding clasp 8 then, the working beam 7 of back-outing at last.So just finished the installation of anti-theft bolt.
Dismounting is during anti-theft bolt, is detachable anti-theft bolt after utilizing above-mentioned method that anti-theft bolt and special-purpose opener are linked together.
Embodiment two: the structure of present embodiment and embodiment's one described anti-theft bolt structure are basic identical.As shown in Figure 3, difference is that the nut 2 of anti-theft bolt is shaped as taper type, and the shape that only needs in the production to change nut 2 and frictional groove 3 designs different anti-theft bolts and special tool with regard to can be different users.
Embodiment three: the structure of present embodiment and embodiment's one described anti-theft bolt structure are basic identical.As shown in Figure 4, can with frictional groove set on the nut 23 the slight recessed groove of 1 vertical stud axis, the cross section of frictional groove 3 be shaped as one section camber line, the diameter of this camber line is much larger than the diameter of nut 2, the bolt arrangement that designs like this is simpler, durable, and difficulty of processing is lower.
Embodiment four: the structure of present embodiment and embodiment's one described anti-theft bolt structure are basic identical.As shown in Figure 5, be that tightening latch 1 is threaded each other with nut 2, She Ji bolt can be hidden in whole bolt in the fixture like this, can be used for sealing water pipe, gas pipe line end.
Claims (7)
1. anti-theft bolt, comprise screw rod (1) and nut (2), on the top of screw rod is the nut that fuses with screw rod, the counterbore of tapping (4) in the nut upper surface has, the direction of this screw thread is identical with hand of spiral on the screw rod, the shape of nut is spherical, frustum, frustoconic shape or oblate cylindricality, it is characterized in that radially being provided with frictional groove (3) equably at the upper surface of nut, and this frictional groove is straight trough or arc groove.
2. anti-theft bolt, comprise screw rod (1) and nut (2), on the top of screw rod is the nut that fuses with screw rod, the counterbore of tapping (4) in the nut upper surface has, the direction of this screw thread is identical with hand of spiral on the screw rod, the shape of nut is spherical, frustum, frustoconic shape or oblate cylindricality, it is characterized in that screw diameter is identical with the nut diameter, screw thread on the screw rod is extended on the nut, counterbore runs through nut, upper surface at nut radially is provided with frictional groove (3) equably, and this frictional groove is straight trough or arc groove.
3. anti-theft bolt according to claim 1 and 2 is characterized in that described counterbore and screw coaxial line or axis are parallel to each other.
4. special opening instrument that is used to open each described anti-theft bolt of claim 1 to 3, the main body likeness in form normal screws that it is characterized in that this opener is criticized, form by handle (9) and working beam (7), the outside thread that the screw thread that the surface of working beam has and counterbore (4) is interior is complementary, working beam is provided with the binding clasp (8) that cooperates with working beam, and the shape of the upper surface of the lower end surface of this binding clasp (84) and nut is complementary and is coupled.
5. the special opening instrument of anti-theft bolt according to claim 4, it is characterized in that described binding clasp is made up of the positioning block (82) that is spirally connected with working beam that is connected on the clamp (81) and the clamp that are enclosed within on the working beam, be fixed with the butterfly-shaped handle (83) that is symmetrical in working beam on the positioning block end face.
6. the special opening instrument of anti-theft bolt according to claim 5 is characterized in that having on the top of clamp circular groove (85), and cross-sectional shape is in the lower edge of positioning block of Jiong shape turns over, and in the lower edge of turning over be fastened in the circular groove and can in groove, slide.
7. the special opening instrument of anti-theft bolt according to claim 6 is characterized in that described positioning block two for symmetry, and two interblocks are inserted the involutory or negative and positive engaging each other of form with plug tenon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710027515A CN101126409B (en) | 2007-04-12 | 2007-04-12 | Theft-proof screw bolt and the dedicated tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710027515A CN101126409B (en) | 2007-04-12 | 2007-04-12 | Theft-proof screw bolt and the dedicated tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101126409A CN101126409A (en) | 2008-02-20 |
| CN101126409B true CN101126409B (en) | 2010-05-26 |
Family
ID=39094514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710027515A Expired - Fee Related CN101126409B (en) | 2007-04-12 | 2007-04-12 | Theft-proof screw bolt and the dedicated tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101126409B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518639B (en) * | 2011-12-14 | 2014-01-01 | 广州市天薪通信器材有限公司 | Special screw plug and demounting tool special for same |
| CN107642539A (en) * | 2017-10-28 | 2018-01-30 | 东台市凯润精密机械股份有限公司 | A kind of stainless steel safe antitheft screw |
| CN113746006B (en) * | 2021-09-10 | 2024-05-24 | 国网辽宁省电力有限公司抚顺供电公司 | High-reliability distribution box |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3921874A1 (en) * | 1989-07-04 | 1989-11-30 | Hoehler Juergen Dipl Volksw | Screw with a countersunk recess in the head, a right-handed and a left-handed thread being located on the inner wall of said recess. Screwdriver with complementary threads on the outer border of the part which is screwed into the countersunk recess in order to screw in, and unscrew, the screw |
| GB2232218A (en) * | 1989-06-02 | 1990-12-05 | Frederick John Yarrow | Security fasteners for preventing theft or vandalism |
| FR2675553A3 (en) * | 1991-04-18 | 1992-10-23 | Fagix | Theft-proof fastening element and compatible clamping piece |
| CN2363113Y (en) * | 1997-07-24 | 2000-02-09 | 李刚 | Demounting-resistant nut, screw bolt and special clamp nut |
| DE19902192A1 (en) * | 1999-01-21 | 2000-07-27 | Daniel Lanneree | Theft-proof screw or nut has annular recess with free end for screw-driver, thrust surface, main and insertion parts, head and shaft |
| US6736579B2 (en) * | 1998-02-18 | 2004-05-18 | Volvo Personvagnar Ab | Screw device and assembly for theft-proofing vehicle wheels |
| CN1670386A (en) * | 2004-03-19 | 2005-09-21 | 罗伯特·施吕特 | Anti-tamper fastener |
| CN2729400Y (en) * | 2004-06-18 | 2005-09-28 | 李书超 | Unscrew bolt |
| CN201043559Y (en) * | 2007-04-12 | 2008-04-02 | 陈伟明 | Anti-theft bolt and its special tool |
-
2007
- 2007-04-12 CN CN200710027515A patent/CN101126409B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2232218A (en) * | 1989-06-02 | 1990-12-05 | Frederick John Yarrow | Security fasteners for preventing theft or vandalism |
| DE3921874A1 (en) * | 1989-07-04 | 1989-11-30 | Hoehler Juergen Dipl Volksw | Screw with a countersunk recess in the head, a right-handed and a left-handed thread being located on the inner wall of said recess. Screwdriver with complementary threads on the outer border of the part which is screwed into the countersunk recess in order to screw in, and unscrew, the screw |
| FR2675553A3 (en) * | 1991-04-18 | 1992-10-23 | Fagix | Theft-proof fastening element and compatible clamping piece |
| CN2363113Y (en) * | 1997-07-24 | 2000-02-09 | 李刚 | Demounting-resistant nut, screw bolt and special clamp nut |
| US6736579B2 (en) * | 1998-02-18 | 2004-05-18 | Volvo Personvagnar Ab | Screw device and assembly for theft-proofing vehicle wheels |
| DE19902192A1 (en) * | 1999-01-21 | 2000-07-27 | Daniel Lanneree | Theft-proof screw or nut has annular recess with free end for screw-driver, thrust surface, main and insertion parts, head and shaft |
| CN1670386A (en) * | 2004-03-19 | 2005-09-21 | 罗伯特·施吕特 | Anti-tamper fastener |
| CN2729400Y (en) * | 2004-06-18 | 2005-09-28 | 李书超 | Unscrew bolt |
| CN201043559Y (en) * | 2007-04-12 | 2008-04-02 | 陈伟明 | Anti-theft bolt and its special tool |
Non-Patent Citations (1)
| Title |
|---|
| 同上. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101126409A (en) | 2008-02-20 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20100526 Termination date: 20110412 |