CN2881187Y - Antitheft tightening device - Google Patents
Antitheft tightening device Download PDFInfo
- Publication number
- CN2881187Y CN2881187Y CN 200620101189 CN200620101189U CN2881187Y CN 2881187 Y CN2881187 Y CN 2881187Y CN 200620101189 CN200620101189 CN 200620101189 CN 200620101189 U CN200620101189 U CN 200620101189U CN 2881187 Y CN2881187 Y CN 2881187Y
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- CN
- China
- Prior art keywords
- bolt
- nut
- protection cylinder
- hole
- securing means
- 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
An antitheft tightening device comprises a bolt and a nut, and the nut cooperates with the bolt. The bolt comprises a special-shaped bolt head and a bolt rod; the nut is a special-shaped nut; the antitheft tightening device also comprises an upper protective barrel and a lower protective barrel; a through-hole is opened at the bottom of the upper protective barrel, and the size of the through-hole is matching with the bolt rod, the bolt head locates in the upper protective barrel; a through-hole is also opened at the bottom of the lower protective barrel, the size of the through-hole is matching with the bolt rod, both the special-shaped nut and the bolt rod which is matching with the special-shaped nut are in the lower protective barrel. The utility model provides an antitheft tightening device with simple structure and low cost.
Description
(1) technical field
The utility model relates to a kind of securing means, especially a kind of bolt and nut securing means.
(2) background technique
General, nuts and bolt cooperates the employing standard piece, can dismantle securing means with instrument commonly used, but in some occasion, such as outdoor transformer equipment or other important equipment, securing means also needs to possess anti-theft feature, promptly utilizes instrument commonly used can not open this securing means easily.
Existing anti-theft bolt, such as number of patent application is 200410034504.1, patent name is the patent of invention of anti-theft bolt, anti-theft nut and special spanner, a kind of anti-theft bolt is disclosed, the termination and the nut making of bolt are the shape that has certain taper, make the robber can't utilize common equipment to looser a bolt and nut; Simultaneously, on the anti-theft bolt end face, be manufactured with polygon counterbore or groove, be convenient to the nut screwing clamping bolt time, block bolt head, make bolt not rotate simultaneously with nut with instrument.Also the shortcoming of Cun Zaiing is: 1, structure more complicated; 2, cost of production is higher.
(3) summary of the invention
In order to overcome existing antitheft securing means complex structure, deficiency that cost of production is high, the utility model provides a kind of simple in structure, antitheft securing means that cost of production is low.
The technological scheme that its technical problem that solves the utility model adopts is:
A kind of antitheft securing means comprises bolt, nut, and described nut cooperates with bolt, and described bolt comprises special shaped screw bolt head, bolt shank, and described nut is an abnormity nut, and described antitheft securing means also comprises protection cylinder, following protection cylinder; The described protection cylinder bottom of going up has through hole, described hole size and bolt shank coupling, and described bolt head is positioned at protection cylinder; Described protection cylinder down bottom also has through hole, described hole size and bolt shank coupling, and described abnormity nut and the bolt shank that cooperates with abnormity nut are positioned at protection cylinder down.
Further, described special shaped screw bolt head, abnormity nut are asymmetric dihedral.
Or described special shaped screw bolt head, abnormity nut are half elliptic.
Clamping bolt of the present utility model, nut adopt abnormity such as asymmetric dihedral or half elliptic, have only socket wrench specially adapted for it to open; Therefore this product has changed the defect that common in the past anti-theft bolt is easily opened by pipe tongs because protection cylinder has been protected bolt is difficult for being unlocked, and pipe tongs can only rotate protection cylinder can not rotating bolt, plays antitheft effect.As oneself needing unlatching also very convenient, as long as two special opening sleeves, two sleeves stretch into respectively in the protection cylinder, rotate tightening nut and get final product.
The beneficial effects of the utility model mainly show: 1, simple in structure; 2, cost of production is low; 3, theftproof performance is good; 4, be fit to produce in enormous quantities.
(4) description of drawings
Fig. 1 is the structural drawing of antitheft securing means.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the plan view of Fig. 1.
Fig. 4 is the structural drawing of special opening sleeve.
(5) embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 1, Fig. 2, Fig. 3, a kind of antitheft securing means comprises bolt 1, nut 2, described nut 2 cooperates with bolt 1, described bolt 1 comprises special shaped screw bolt head 3, bolt shank 4, and described nut 2 is an abnormity nut, and described antitheft securing means also comprises protection cylinder 5, following protection cylinder 6; Described protection cylinder 5 bottoms of going up have through hole, described hole size and bolt shank 4 couplings, and described bolt head 3 is positioned at protection cylinder 5; Described protection cylinder 6 tops down also have through hole, described hole size and bolt shank 4 couplings, and described abnormity nut 2 and the bolt shank 4 that cooperates with abnormity nut are positioned at protection cylinder 6 down.
Described special shaped screw bolt head 3, abnormity nut 2 are asymmetric dihedral or half elliptic, perhaps other non-regular shapes.
Protection cylinder all is cylindrical up and down, and last protection cylinder bottom has through hole, so that bolt shank inserts, following protection cylinder top has through hole, when operation is installed, only need antitheft securing means of the present utility model be installed at the cover rim place of equipment and get final product.The utility model is applicable to outdoor transformer equipment or other outdoor equipments.
Have only socket wrench specially adapted for it 7 to open; Therefore this product has changed the defect that common in the past anti-theft bolt is easily opened by pipe tongs because protection cylinder has been protected bolt is difficult for being unlocked, and pipe tongs can only rotate protection cylinder can not rotating bolt, plays antitheft effect.As oneself needing unlatching also very convenient,, rotate tightening nut and get final product as long as 7, two sleeves of two special opening sleeves stretch into respectively in the protection cylinder.
Claims (3)
1, a kind of antitheft securing means, comprise bolt, nut, described nut cooperates with bolt, it is characterized in that: described bolt comprises special shaped screw bolt head, bolt shank, described nut is an abnormity nut, and described antitheft securing means also comprises protection cylinder, following protection cylinder;
The described protection cylinder bottom of going up has through hole, described hole size and bolt shank coupling, and described bolt head is positioned at protection cylinder;
Described protection cylinder top down also has through hole, described hole size and bolt shank coupling, and described abnormity nut and the bolt shank that cooperates with abnormity nut are positioned at protection cylinder down.
2, antitheft securing means as claimed in claim 1 is characterized in that: described special shaped screw bolt head, abnormity nut are asymmetric dihedral.
3, it is characterized in that as claim 1: described special shaped screw bolt head, abnormity nut are half elliptic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620101189 CN2881187Y (en) | 2006-02-24 | 2006-02-24 | Antitheft tightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620101189 CN2881187Y (en) | 2006-02-24 | 2006-02-24 | Antitheft tightening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2881187Y true CN2881187Y (en) | 2007-03-21 |
Family
ID=37881027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620101189 Expired - Fee Related CN2881187Y (en) | 2006-02-24 | 2006-02-24 | Antitheft tightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2881187Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111361690A (en) * | 2020-04-17 | 2020-07-03 | 中船黄埔文冲船舶有限公司 | Ship window anti-theft device |
-
2006
- 2006-02-24 CN CN 200620101189 patent/CN2881187Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111361690A (en) * | 2020-04-17 | 2020-07-03 | 中船黄埔文冲船舶有限公司 | Ship window anti-theft device |
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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 |