CN2237141Y - Anti-theft bolt - Google Patents
Anti-theft bolt Download PDFInfo
- Publication number
- CN2237141Y CN2237141Y CN 96225430 CN96225430U CN2237141Y CN 2237141 Y CN2237141 Y CN 2237141Y CN 96225430 CN96225430 CN 96225430 CN 96225430 U CN96225430 U CN 96225430U CN 2237141 Y CN2237141 Y CN 2237141Y
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- CN
- China
- Prior art keywords
- rectangular
- nut
- key
- opening
- utility
- 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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Abstract
The utility model relates to a screw bolt, such as a screw head or a slot at a rod part of the screw. The head of a screw bolt rod has an opening concave key groove, and a screw cap is arranged on the screw bolt rod; a long strip-shaped key which is in the riveting state is arranged in the opening concave keyway and is not easy not to disassemble to make a thief have not any chance and to make equipment and facilities of communication and electric power iron towers, traffic, railways, bridges, etc. safer. The national property can not be destroyed to prevent dangerous outcomes of economic loss, social influence, etc. from happening. The utility model has the advantages of safety, simple and compact structure, easy manufacture and assembly, low cost, etc.
Description
The utility model relates to bolt, the screw, the bolt head that combine with the screw thread cutting, and the processing of nut is as the fluting, particularly anti-theft bolt of screw head or screw rod portion.
Be applied in communication, electric power tower at present, mostly be that the bolt that easily unloads that adopts is installed on equipment such as the railway of traffic and bridge, the facility, exist easily and be disassembled, opportunity is arranged all can for the thief demounting bolt, the property of country is damaged, produces immeasurable economic loss and social influence, cause danger and consequence comparatively serious, for overcoming above-mentioned existing deficiency, the utility model has designed anti-theft bolt.
Providing of the purpose of this utility model is easy for installation, and be safe and reliable, the anti-theft bolt that is difficult for being disassembled.
The utility model is achieved in that at the bolt shank head and has the recessed keyway of opening, the shape of the recessed keyway of opening be have rectangular trapezoidal, rectangular cylindrical, rectangular square, rectangular rectangular, rectangular half round post, rectangular deltiod, after on the bolt shank nut being installed, the tight embedding is equipped with rectangular key in the recessed keyway of opening, the shape of rectangular key be have rectangular trapezoidal, rectangular cylindrical, rectangular square, rectangular rectangular, rectangular half round post, rectangular deltiod, the last tip portion of rectangular key are sheared conquassation nut internal thread between the root circle of nut internal thread top circle and nut internal thread.
The utility model is in riveting status, be difficult for being disassembled, thief is had not yet found openings to exploit, make at communication, electric power tower, equipment such as the railway of traffic and bridge, facility are more safe and reliable, the property of country can be damaged, avoid causing the generation of dangerous consequences such as economic loss and social influence, have safe and reliable, and simple and compact for structure, be easy to make and install, advantage such as with low cost.
Concrete structure of the present utility model and embodiment are provided by the following drawings.
Fig. 1 shows schematic representation for general structure partial cutaway of the present utility model;
Fig. 2 is the structural representation of recessed keyway of the rectangular trapezoid-shaped openings of the utility model and rectangular trapezoidal rectangular key;
Fig. 3 is the structural representation of recessed keyway of the rectangular cylinder open of the utility model and rectangular cylindrical rectangular key;
Fig. 4 is the structural representation of recessed keyway of the rectangular square openings of the utility model and the rectangular key of rectangular square;
Fig. 5 is the structural representation of recessed keyway of the rectangular oblong openings of the utility model and the rectangular key of rectangular rectangular;
Fig. 6 is the structural representation of the utility model recessed keyway of rectangular half-cylindrical opening and the rectangular key of rectangular half round post;
Fig. 7 is the structural representation of the utility model recessed keyway of rectangular deltiod opening and the rectangular key of rectangular deltiod;
Fig. 8 cuts open for the local amplification of general structure of the present utility model and shows schematic representation.
To be described in further detail concrete structure of the present utility model and embodiment below in conjunction with accompanying drawing.
Embodiment 1:
Shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 8: have the recessed keyway 2 of opening at bolt shank 1 upper right side head, the shape of the recessed keyway 2 of opening is rectangular trapezoidal, after on the bolt shank 1 nut 4 being installed, the tight embedding is equipped with rectangular key 3 in the recessed keyway 2 of opening, it is rectangular trapezoidal that the shape of rectangular key 3 is, and the last tip portion of rectangular key 3 is sheared conquassation nut 4 internal threads between the root circle of nut 4 internal thread top circles and nut 4 internal threads.
Embodiment 2:
Shown in accompanying drawing 1, accompanying drawing 3, accompanying drawing 8: have the recessed keyway 2 of opening at bolt shank 1 upper right side head, the shape of the recessed keyway 2 of opening is rectangular cylindrical, after on the bolt shank 1 nut 4 being installed, the tight embedding is equipped with rectangular key 3 in the recessed keyway 2 of opening, it is rectangular cylindrical that the shape of rectangular key 3 is, and the last tip portion of rectangular key 3 is sheared conquassation nut 4 internal threads between the root circle of nut 4 internal thread top circles and nut 4 internal threads.
Embodiment 3:
Shown in accompanying drawing 1, accompanying drawing 4, accompanying drawing 8: have the recessed keyway 2 of opening at bolt shank 1 upper right side head, the shape of the recessed keyway 2 of opening is rectangular square, after on the bolt shank 1 nut 4 being installed, the tight embedding is equipped with rectangular key 3 in the recessed keyway 2 of opening, the shape of rectangular key 3 is rectangular square, and the last tip portion of rectangular key 3 is sheared conquassation nut 4 internal threads between the root circle of nut 4 internal thread top circles and nut 4 internal threads.
Embodiment 4:
Shown in accompanying drawing 1, accompanying drawing 5, accompanying drawing 8: have the recessed keyway 2 of opening at bolt shank 1 upper right side head, the shape of the recessed keyway 2 of opening is rectangular rectangular, after on the bolt shank 1 nut 4 being installed, the tight embedding is equipped with rectangular key 3 in the recessed keyway 2 of opening, the shape of rectangular key 3 is rectangular rectangular, and the last tip portion of rectangular key 3 is sheared conquassation nut 4 internal threads between the root circle of nut 4 internal thread top circles and nut 4 internal threads.
Embodiment 5:
Shown in accompanying drawing 1, accompanying drawing 6, accompanying drawing 8: have the recessed keyway 2 of opening at bolt shank 1 upper right side head, the shape of the recessed keyway 2 of opening is rectangular half round post, after on the bolt shank 1 nut 4 being installed, the tight embedding is equipped with rectangular key 3 in the recessed keyway 2 of opening, the shape of rectangular key 3 is rectangular half round post, and the last tip portion of rectangular key 3 is sheared conquassation nut 4 internal threads between the root circle of nut 4 internal thread top circles and nut 4 internal threads.
Embodiment 6:
Shown in accompanying drawing 1, accompanying drawing 7, accompanying drawing 8: have the recessed keyway 2 of opening at bolt shank 1 upper right side head, the shape of the recessed keyway 2 of opening is rectangular deltiod, after on the bolt shank 1 nut 4 being installed, the tight embedding is equipped with rectangular key 3 in the recessed keyway 2 of opening, the shape of rectangular key 3 is rectangular deltiod, and the last tip portion of rectangular key 3 is sheared conquassation nut 4 internal threads between the root circle of nut 4 internal thread top circles and nut 4 internal threads.
Claims (3)
1, anti-theft bolt, it is made up of bolt shank (1), nut (4) and rectangular key (3), it is characterized in that: have the recessed keyway of opening (2) at bolt shank (1) head, has nut (4) on the bolt shank (1), have rectangular key (3) in the recessed keyway of opening (2), the last tip portion of rectangular key (3) is positioned at shears conquassation nut (4) internal thread between the root circle of nut (4) internal thread top circle and nut (4) internal thread.
2, anti-theft bolt according to claim 1 is characterized in that: the shape of the recessed keyway of opening (2) has rectangular trapezoidal, rectangular cylindrical, rectangular square, rectangular rectangular, rectangular half round post, rectangular deltiod.
3, anti-theft bolt according to claim 1 is characterized in that: the shape of rectangular key (3) has rectangular trapezoidal, rectangular cylindrical, rectangular square, rectangular rectangular, rectangular half round post, rectangular deltiod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96225430 CN2237141Y (en) | 1996-02-13 | 1996-02-13 | Anti-theft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96225430 CN2237141Y (en) | 1996-02-13 | 1996-02-13 | Anti-theft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2237141Y true CN2237141Y (en) | 1996-10-09 |
Family
ID=33904114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96225430 Expired - Fee Related CN2237141Y (en) | 1996-02-13 | 1996-02-13 | Anti-theft bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2237141Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605074A (en) * | 2016-03-18 | 2016-05-25 | 贵州航天精工制造有限公司 | Titanium alloy bolt with key grooves |
-
1996
- 1996-02-13 CN CN 96225430 patent/CN2237141Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605074A (en) * | 2016-03-18 | 2016-05-25 | 贵州航天精工制造有限公司 | Titanium alloy bolt with key grooves |
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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 |