CN201301860Y - Burglarproof nut - Google Patents
Burglarproof nut Download PDFInfo
- Publication number
- CN201301860Y CN201301860Y CNU2008202231104U CN200820223110U CN201301860Y CN 201301860 Y CN201301860 Y CN 201301860Y CN U2008202231104 U CNU2008202231104 U CN U2008202231104U CN 200820223110 U CN200820223110 U CN 200820223110U CN 201301860 Y CN201301860 Y CN 201301860Y
- Authority
- CN
- China
- Prior art keywords
- nut
- cut out
- screw thread
- height
- theft
- 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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- Burglar Alarm Systems (AREA)
Abstract
The utility model discloses a burglarproof nut, wherein a spiral screw thread (4) is arranged in the nut (1), the periphery of the nut (1) is in a smooth round shape, the center is a hollow cylinder (2), a part of the solid cylinder in the nut (1) is dug to form a step, the screw thread (4) is arranged in the part (3) which is not dug, and the dug part is projected into a six-pointed star shape on the bottom surface of the nut. The burglarproof nut overcomes the defect that an existing nut (1) can not be burglarproof, the utility model provides the nut (1) which has simple structure, convenient production, repeated use and low cost, and can prevent robbers from screwing down the nut (1) to steal objects, and the nut can be widely applied in daily life.
Description
Technical field
The utility model relates to a kind of nut of special shape, is specifically related to the nut that relies on shape antitheft.
Background technique
Usually use screw bolt and nut fixed object and article at present.Especially on highway facilities, electric power facility a large amount of use screw bolt and nut draw label, crash bar, transformer fixed.The advantage of using bolt, nut to fix is to use conveniently, needs only by instruments such as common spanner or pliers, nut is tightened on the bolt get final product.But the robber pulls down existing orthohexagonal nut rotation easily with common wrench or pliers, thereby steals equipment.
The model utility content
The utility model has overcome the deficiencies in the prior art, provides to rely on special nut shape to carry out antitheft.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of anti-theft nut is the screw thread 4 of spiral in the nut 1.Nut 1 periphery is smooth circle, and central authorities are hollow cylinder 2, and solid cylinder is cut out a part and forms a step in the nut 1, and screw thread 4 is in the part 3 that is not cut out, and the part that is cut out projects into Hexangular Star on the bottom surface of nut.
Further technological scheme is that each angular shape of Hexangular Star is the same, and is identical at interval.
Further technological scheme be screw thread 4 when being the clockwise direction swivel nut 1 nut 1 retreat, counterclockwise nut 1 advances during swivel nut 1.
Further 2/3rds of maximum diameter≤nut 1 diameter of the part that cut out of technological scheme, 4/3rds of 〉=hollow cylinder 2 diameters.
Further technological scheme is that the height of the height of solid cylinder cutouts and the part 3 that do not cut out equates.
Further technological scheme is that the height of solid cylinder cutouts is half of height of the part 3 that do not cut out.
Compared with prior art, the beneficial effects of the utility model are simple in structure, and are convenient for production, can reuse, and cost is low, can prevent that the robber from screwing off nut and stealing article.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that the A-A ' of Fig. 1 is to sectional view.
Embodiment
Below in conjunction with accompanying drawing the utility model is further elaborated.
Shown in 1,2, a kind of anti-theft nut is the screw thread 4 of spiral in the nut 1.Nut 1 periphery is smooth circle, and central authorities are hollow cylinder 2, and solid cylinder is cut out a part and forms a step in the nut 1, and screw thread 4 is in the part 3 that is not cut out, and the part that is cut out projects into Hexangular Star on the bottom surface of nut.Each angular shape of Hexangular Star is the same, and is identical at interval.The maximum diameter of the part that cuts out equals 2/3rds of nut 1 diameter, is 4/3rds of hollow cylinder 2 diameters.1 nut 1 retreated when screw thread 4 was the clockwise direction swivel nut, and nut 1 advances during counter clockwise direction swivel nut 1.The height of the height of solid cylinder cutouts and the part 3 that do not cut out equates.
During use, the utility model is placed on the bolt, it is outside wherein to be cut out a part of one side by interior solid cylinder, is enclosed within the hollow parts that is cut out with special-purpose instrument.The professional tool center is a circular hole, can pass bolt, and it is peripheral the same with the partial shape that is cut out, and professional tool and nut 1 coincide.Counterclockwise rotate professional tool drive nut 1 and be rotated counterclockwise, article are fixed.When the robber steals, because nut 1 periphery is smooth circle, can't rotating nut 1 with common spanner or this pliers, nut 1 can't be disassembled.Simultaneously because general nut 1 counterclockwise swivel nut 1 retreat, if can take swivel nut 1 counterclockwise during the powerful swivel nut 1 of robber, it is tight more that the result can cause nut 1 to rotate more, and reach antitheft purpose.When as needs article being disassembled, the instrument of special use is enclosed within the hollow parts that is cut out, clockwise direction rotation professional tool drives nut 1 and turns clockwise, and nut 1 rotates from bolt, takes off article.
Claims (6)
1, a kind of anti-theft nut, it in the nut (1) screw thread (4) of spiral, it is characterized in that nut (1) periphery is smooth circle, central authorities are hollow cylinder (2), the interior solid cylinder of nut (1) is cut out a part and is formed a step, screw thread (4) is in the part that is not cut out (3), is projected into Hexangular Star by the part that cut out on the bottom surface of nut.
2, anti-theft nut according to claim 1 is characterized in that each angular shape of described Hexangular Star is the same, and is identical at interval.
3, anti-theft nut according to claim 2, (1) nut (1) retreats when it is characterized in that described screw thread (4) is the clockwise direction swivel nut, and counterclockwise nut (1) advances during swivel nut (1).
4, anti-theft nut according to claim 3, it is characterized in that the described part that is cut out maximum diameter≤nut (1) diameter 2/3rds, 4/3rds of 〉=hollow cylinder (2) diameter.
5, anti-theft nut according to claim 4, the height of the part that it is characterized in that the height of described solid cylinder cutouts and do not cut out (3) equates.
6, anti-theft nut according to claim 4, the height that it is characterized in that described solid cylinder cutouts are half of height of the part (3) that do not cut out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202231104U CN201301860Y (en) | 2008-12-04 | 2008-12-04 | Burglarproof nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202231104U CN201301860Y (en) | 2008-12-04 | 2008-12-04 | Burglarproof nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201301860Y true CN201301860Y (en) | 2009-09-02 |
Family
ID=41085485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202231104U Expired - Fee Related CN201301860Y (en) | 2008-12-04 | 2008-12-04 | Burglarproof nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201301860Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736548A (en) * | 2016-04-12 | 2016-07-06 | 哈尔滨东安发动机（集团）有限公司 | Disassembly structure for closed shell |
-
2008
- 2008-12-04 CN CNU2008202231104U patent/CN201301860Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736548A (en) * | 2016-04-12 | 2016-07-06 | 哈尔滨东安发动机（集团）有限公司 | Disassembly structure for closed shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20090902 Termination date: 20100104 |