CN2088617U - Theft-proof screw bolt - Google Patents
Theft-proof screw bolt Download PDFInfo
- Publication number
- CN2088617U CN2088617U CN 91211167 CN91211167U CN2088617U CN 2088617 U CN2088617 U CN 2088617U CN 91211167 CN91211167 CN 91211167 CN 91211167 U CN91211167 U CN 91211167U CN 2088617 U CN2088617 U CN 2088617U
- Authority
- CN
- China
- Prior art keywords
- screw bolt
- nut
- ratchet
- theft
- wedge
- 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.)
- Withdrawn
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- Burglar Alarm Systems (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model belongs to the screw bolt fastener which is a theft-proof screw bolt used for the fastener of the angle steel of the steel tower of electric lines. A screw bolt body 1 is provided with a saw-tooth groove; a nut 2 is provided with an inner cavity in which a spring steel wire 3 and a wedge-shaped block 4 with a ratchet are arranged. When the nut is screwed toward the screw bolt, the ratchet of the wedge-shaped block 4 can move upward and downward along the saw-tooth groove of the threaded rod under the action of the spring steel wire 3. But when the nut is disassembled, the other end face of the ratchet is exactly clamped into the saw-tooth groove of the screw bolt to limit the reversing and loosening of the nut, achieving the theft-proof purpose. The utility model has the advantages of convenient use, reduced welding cost of the steel tower and the maintenance of the safe operation of the electric line.
Description
The utility model belongs to bolt fastener.
The iron tower of field electric circuit, main material adopts angle steel, combines by screw is fastening, because the plain bolt convenient disassembly so the stolen phenomenon of steel tower corner iron often takes place, directly influences the safe operation of power supply line, weight person causes circuit and equipment scrapping.For addressing the above problem, the general at present welding method that adopts is an one with the bolt and nut weldering, has avoided steel tower corner iron stolen, but has also increased the iron tower cost, every grade of iron tower welding expense reaches more than 1000 yuan, especially in the massif area and non-transformer district work difficulty bigger.
The purpose of this utility model is to provide a kind of anti-theft bolt, behind the fastening steel tower corner iron of this anti-theft bolt, can't dismantle, and saves cost than the employing welding method, and easy to use.
For achieving the above object, technical characteristics of the present utility model is as follows, and is illustrated in conjunction with the accompanying drawings.
Fig. 1: anti-theft bolt structural representation.
Fig. 2: anti-theft bolt sectional drawing.
Among the figure: 1 screw rod, 2 nuts, 3 Spring Steel Wires, 4 wedge-shaped blockss.
Anti-theft bolt is made up of screw rod and nut, vertically equidistantly be milled with 2-4 bar zigzag groove at the screw rod body, be provided with a cavity at nut, wedge and spring steel wire with a ratchet are housed in the cavity, the ratchet on the wedge is corresponding with the zigzag groove on the screw rod to coincide.
In use, nut is screwed on screw rod, the wedge ratchet on the nut moves up and down along screw rod zigzag groove, until nut screwing clamping under the effect of spring steel wire thereupon. But when removing nut, ratchet reverses thereupon, and just in time card enters in the screw rod zigzag groove, and it is loosening to have limited the nut reversing, reaches antitheft purpose.
Advantage of the present utility model: this anti-theft bolt is easy to use, reduces the iron tower welding cost, prevents the stolen destruction of steel tower corner iron, has safeguarded the safe operation of power circuit.This bolt also can be used in the other field.
Embodiment:
Clamping bolt on the iron tower generally adopts M16, M20 bolt.
The dark 2-2.5mm of zigzag fashion groove on the screw rod body, serrated slot is 60 ° of angles.
Claims (2)
1, anti-theft bolt is made up of screw rod and nut, it is characterized in that vertically equidistantly being milled with 2-4 bar zigzag fashion groove at the screw rod body, be provided with a cavity on nut, wedge-shaped blocks and Spring Steel Wire with a ratchet are housed in the cavity, the ratchet on the wedge-shaped blocks is corresponding with the zigzag fashion groove on the screw rod to coincide.
2, anti-theft bolt according to claim 1 is characterized in that the dark 2-2.5mm of zigzag fashion groove on the screw rod body, and serrated slot is 60 ° of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91211167 CN2088617U (en) | 1991-01-24 | 1991-01-24 | Theft-proof screw bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91211167 CN2088617U (en) | 1991-01-24 | 1991-01-24 | Theft-proof screw bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2088617U true CN2088617U (en) | 1991-11-13 |
Family
ID=4919876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91211167 Withdrawn CN2088617U (en) | 1991-01-24 | 1991-01-24 | Theft-proof screw bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2088617U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366926C (en) * | 2006-04-06 | 2008-02-06 | 张连墩 | Checkscrew built in spring lamination |
| CN104847777A (en) * | 2014-12-17 | 2015-08-19 | 北汽福田汽车股份有限公司 | Stay cable adjustment assembly and vehicle with the same |
| CN105332513A (en) * | 2015-12-11 | 2016-02-17 | 招商局重庆交通科研设计院有限公司 | Curved plate-type carbon fiber plate anchor device tensioning system |
| CN105369985A (en) * | 2015-12-11 | 2016-03-02 | 招商局重庆交通科研设计院有限公司 | Curved-plate type anchorage device for carbon fiber plates |
| CN105864260A (en) * | 2016-05-31 | 2016-08-17 | 国网山东省电力公司宁津县供电公司 | Unidirectional anti-detaching bolt |
| CN107314024A (en) * | 2017-08-24 | 2017-11-03 | 李树峰 | A kind of fastening assembly |
| CN108591225A (en) * | 2018-05-14 | 2018-09-28 | 青岛新鲁同钢构有限公司 | Foundation bolt and its processing, application method |
| CN109737128A (en) * | 2019-02-19 | 2019-05-10 | 国家电网有限公司 | Antitheft tightening assembly and removal tool special |
| CN111043129A (en) * | 2019-12-16 | 2020-04-21 | 陈钦先 | Self-locking fixing bolt for constructional engineering |
-
1991
- 1991-01-24 CN CN 91211167 patent/CN2088617U/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366926C (en) * | 2006-04-06 | 2008-02-06 | 张连墩 | Checkscrew built in spring lamination |
| CN104847777A (en) * | 2014-12-17 | 2015-08-19 | 北汽福田汽车股份有限公司 | Stay cable adjustment assembly and vehicle with the same |
| CN105332513A (en) * | 2015-12-11 | 2016-02-17 | 招商局重庆交通科研设计院有限公司 | Curved plate-type carbon fiber plate anchor device tensioning system |
| CN105369985A (en) * | 2015-12-11 | 2016-03-02 | 招商局重庆交通科研设计院有限公司 | Curved-plate type anchorage device for carbon fiber plates |
| CN105864260A (en) * | 2016-05-31 | 2016-08-17 | 国网山东省电力公司宁津县供电公司 | Unidirectional anti-detaching bolt |
| CN107314024A (en) * | 2017-08-24 | 2017-11-03 | 李树峰 | A kind of fastening assembly |
| CN108591225A (en) * | 2018-05-14 | 2018-09-28 | 青岛新鲁同钢构有限公司 | Foundation bolt and its processing, application method |
| CN108591225B (en) * | 2018-05-14 | 2022-03-08 | 青岛新鲁同钢构有限公司 | Foundation bolt and machining and using methods thereof |
| CN109737128A (en) * | 2019-02-19 | 2019-05-10 | 国家电网有限公司 | Antitheft tightening assembly and removal tool special |
| CN111043129A (en) * | 2019-12-16 | 2020-04-21 | 陈钦先 | Self-locking fixing bolt for constructional engineering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |