CN2378567Y - Antitheft nut and screw bolt - Google Patents
Antitheft nut and screw bolt Download PDFInfo
- Publication number
- CN2378567Y CN2378567Y CN 99206673 CN99206673U CN2378567Y CN 2378567 Y CN2378567 Y CN 2378567Y CN 99206673 CN99206673 CN 99206673 CN 99206673 U CN99206673 U CN 99206673U CN 2378567 Y CN2378567 Y CN 2378567Y
- Authority
- CN
- China
- Prior art keywords
- cap body
- nut
- platform
- antitheft
- breach
- 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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- Clamps And Clips (AREA)
Abstract
The utility model relates to an antitheft nut and a screw bolt. A contact area of the bottom of a nut body and a workpiece is small of the existing antitheft nut and the screw bolt is small, tightness and antitheft performance is reduced, and additional shims are usually needed. The utility model is provided with a normal screw hole having screw threads, a screw rod and a cap body having taper. The utility model is characterized in that N numbers of platform gaps are cut at the center section of an outer waist of the nut body, one plane of the platform gap is perpendicular to a bottom face of the nut body, and the platform gaps are distributed according to a regular polygon having N sides (N is odd and >= 3). Through structural improvement, the tightness of the nut and the screw bolt is enhanced, the antitheft effect is good, and the use is convenient without adding the shim.
Description
The utility model belongs to five metals class fastening piece, relates to the nut with anti-theft feature and the improvement technological scheme of bolt.
Industrial and mineral equipment has a lot of occasions need use anti-theft screw cap and bolt, and the cap body of existing employing band tapering and the anti-theft screw cap of asymmetric anchor clamps clamp face and bolt kind are simple in structure, have anti-theft effect.But this veriety from cap body waist on earth, is cut out the plane for the special fixture clamping, and cap body bottom surface is corresponding with the workpiece area of contact to be reduced, and tautness and theftproof performance descend, and also need add Upper gasket during use.
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and a kind of not only had anti-theft feature, but also novel anti-theft nut and bolt with higher tautness are provided.
The purpose of this utility model realizes in the following manner, a kind of novel anti-theft nut, comprise that profile is cap body and the female screw that tapering is arranged, it is characterized in that the external waist of cap stage casing, cut N platform breach, a plane of platform breach is vertical with the bottom surface of cap body, and the platform breach distributes by n-shaped (N is an odd number, N 〉=3).
The upper and lower section part that described a kind of novel anti-theft nut, cap body do not scabble the platform breach all is garden platform shape.
A kind of novel anti-theft bolt comprises that profile is the cap body of tapering to be arranged and externally threaded screw rod is arranged, and is characterized in that the external waist of cap stage casing, cut N platform breach, a plane of platform breach is vertical with the bottom surface of cap body, and the platform breach distributes by n-shaped (N is an odd number, N 〉=3).
Described a kind of novel anti-theft bolt, the hypomere that the cap body does not scabble the platform breach partly is frustoconic shape, and epimere partly is frustoconic shape or sphere.
The utility model has overcome the deficiency of existing procucts by architecture advances, and nut, bolt have improved tautness, and anti-theft effect is good, and easy to use, does not need other shimming.
Further specify the utility model below in conjunction with Figure of description, and provide embodiment.
Fig. 1: the utility model structural representation.
As shown in the figure, a kind of novel anti-theft nut and bolt, nut and bolt all have the cap body 1 of band tapering, and present embodiment is frustoconic shape cap body 1.5 platform breach 2 have been cut in cap body 1 outer waist stage casing, and a plane of platform breach 2 is vertical with the bottom surface 3 of cap body 1, and another side is parallel with bottom surface 3, and platform breach 2 is pressed regular pentagon and distributed.The upper and lower section part that nut cap body 1 does not scabble platform breach 2 is the same garden platform shape of tapering, needs according to cap body 1 blank material size, processing request and tautness (surface of contact), also can adopt different tapering.The hypomere that nuts body 1 does not scabble platform breach 2 partly is frustoconic shape, and epimere partly is frustoconic shape or sphere.Have after the nut of such cap body 1 structure and bolt screw, common wrench and pipe wrench all can not be backed out, and have only the special tool that matches with nut and nuts body 1, could easy-to-operat.
Claims (4)
1, a kind of novel anti-theft nut, comprise that profile is cap body (1) and the female screw (4) that tapering is arranged, it is characterized in that the outer waist of cap body (1) stage casing, cut N platform breach (2), a plane of platform breach (2) is vertical with the bottom surface (3) of cap body (1), platform breach (2) distributes by n-shaped (N is an odd number, N 〉=3).
2, a kind of novel anti-theft nut as claimed in claim 1 is characterized in that the upper and lower section part that cap body (1) does not scabble platform breach (2) all is garden platform shape.
3, a kind of novel anti-theft bolt, comprise that profile is the cap body (1) of tapering to be arranged and externally threaded screw rod (5) is arranged, it is characterized in that the outer waist of cap body (1) stage casing, cut N platform breach (2), a plane of platform breach (2) is vertical with the bottom surface (3) of cap body (1), platform breach (2) distributes by n-shaped (N is an odd number, N 〉=3).
4, a kind of novel anti-theft bolt as claimed in claim 3 is characterized in that the hypomere part that cap body (1) does not scabble platform breach (2) all is frustoconic shape, and epimere partly is frustoconic shape or sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99206673 CN2378567Y (en) | 1999-04-08 | 1999-04-08 | Antitheft nut and screw bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99206673 CN2378567Y (en) | 1999-04-08 | 1999-04-08 | Antitheft nut and screw bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2378567Y true CN2378567Y (en) | 2000-05-17 |
Family
ID=34000883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99206673 Expired - Fee Related CN2378567Y (en) | 1999-04-08 | 1999-04-08 | Antitheft nut and screw bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2378567Y (en) |
-
1999
- 1999-04-08 CN CN 99206673 patent/CN2378567Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |