CN101504028A - Anti-demounting bolt and screwing tool - Google Patents
Anti-demounting bolt and screwing tool Download PDFInfo
- Publication number
- CN101504028A CN101504028A CNA2009101269940A CN200910126994A CN101504028A CN 101504028 A CN101504028 A CN 101504028A CN A2009101269940 A CNA2009101269940 A CN A2009101269940A CN 200910126994 A CN200910126994 A CN 200910126994A CN 101504028 A CN101504028 A CN 101504028A
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- CN
- China
- Prior art keywords
- sleeve
- nut
- bolt
- face
- bolt head
- 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.)
- Pending
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses an anti-demounting bolt and a tightening tool, wherein the anti-demounting bolt comprises a bolt and a nut, wherein a bolt head and the nut are cylindrical, the outer end faces of the cylindrical bolt head and the nut are provided with a one-way ratchet-shaped sloping step tightening surface respectively, an outer round step of the inner end face between the bolt head and the nut is sleeved with a sleeve in running fit respectively, a close cover is tightly matched in an outer port of the sleeve respectively, two sleeve wrenches which can be inserted in each sleeve respectively to be matched and locked with the ratchet-shaped sloping step tightening surface are also arranged in tightly matched in the outer port of the sleeve, and the end face of the tail part of each sleeve wrench is provided with a square hole for inserting a conventional sleeve wrench respectively. The anti-demounting bolt can only be tightened and fixed before the close cover is fastened and cannot be demounted by any tool, thus the theftproof performance is more reliable.
Description
Technical field:
The present invention relates to fastening or fixed component, the particularly a kind of fixedly anti-demounting bolt and screwing tool of usefulness of being applicable on power circuit iron tower and other field facility.
Background technique:
The anti-theft bolt that uses on the field facility is the round bush of the peripheral suit of nut in standard hex bolts now, and nut is protected, and prevents that others from using the spanner demounting bolt, steals equipment, has special-purpose socket wrench during installation and removal.The problem that this structure exists is, socket wrench is copied and being easy to, and the anti-theft bolt of other form can not have antitheft effect because of the leakage of removal tool special yet.
Summary of the invention:
The purpose of this invention is to provide a kind of can only being tightened, all can not remove the anti-demounting bolt and the screwing tool of bolt and nut with any instrument with instrument.
Technological scheme of the present invention is finished as follows, it includes screw bolt and nut, it is characterized in that: bolt head and nut are cylindrical, on the exterior edge face of cylindrical bolt head and nut, be equipped with single direction ratchet shape sloping platform rank and screw face, on the interior edge face cylindrical step between bolt head and the nut, be with a sleeve that is rotatably assorted respectively, drive fit has a capping respectively in the external port of sleeve, also have two can insert respectively and screw face with ratchet shape sloping platform rank in each sleeve and cooperate the socket wrench that blocks, be respectively equipped with a square hole that can insert conventional socket wrench on the tail end face of each socket wrench.Bolt of the present invention can only tighten fixing before the capping fastening, all can not dismantle with any instrument, so theftproof performance is more reliable.
Description of drawings:
Fig. 1 is the structural representation of bolt of the present invention,
Fig. 2 is the structural representation that the present invention screws socket wrench,
Fig. 3 is the structural representation of bolt head and screw rod,
Fig. 4 is the structural representation of nut.
Embodiment:
Further describe embodiment in conjunction with the accompanying drawings, bolt head 1 and nut 3 that the present invention will have bolt now all are made into cylindrical, on the exterior edge face of cylindrical bolt head and nut, all be processed with single direction ratchet shape slope step and screw face 6, on the interior edge face cylindrical step between bolt head and the nut, be set with by a sleeve that is rotatably assorted 4, drive fit has a capping 5 respectively in the external port of each sleeve, also have two can insert respectively in each sleeve and screw the socket wrench 7 that face cooperates screens to screw with ratchet shape sloping platform rank, the tail end face centre of each socket wrench is respectively equipped with a square hole 8 that can insert conventional socket wrench.During use, earlier two socket wrenchs are enclosed within respectively on bolt head and the nut, earlier setting up nut in the mounting hole of screw rod 2 insertion fixed blocks, screw the face interlock with the ratchet shape slope step of bolt head and nut respectively with two socket wrenchs, back taking-up socket wrench is tightened, at last two cappings are tightly fixed respectively in the port of two sleeves, can prevent any instrument dismounting.
Claims (1)
1, a kind of anti-demounting bolt and screwing tool, it includes screw bolt and nut, it is characterized in that: bolt head and nut are cylindrical, on the exterior edge face of cylindrical bolt head and nut, be equipped with single direction ratchet shape sloping platform rank and screw face, on the interior edge face cylindrical step between bolt head and the nut, be with a sleeve that is rotatably assorted respectively, drive fit has a capping respectively in the external port of sleeve, also have two can insert respectively and screw face with ratchet shape sloping platform rank in each sleeve and cooperate the socket wrench that blocks, be respectively equipped with a square hole that can insert conventional socket wrench on the tail end face of each socket wrench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101269940A CN101504028A (en) | 2008-12-16 | 2009-03-03 | Anti-demounting bolt and screwing tool |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810231383.8 | 2008-12-16 | ||
| CN200810231383 | 2008-12-16 | ||
| CNA2009101269940A CN101504028A (en) | 2008-12-16 | 2009-03-03 | Anti-demounting bolt and screwing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101504028A true CN101504028A (en) | 2009-08-12 |
Family
ID=40976371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101269940A Pending CN101504028A (en) | 2008-12-16 | 2009-03-03 | Anti-demounting bolt and screwing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101504028A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358827A (en) * | 2014-11-25 | 2015-02-18 | 内蒙古路桥有限责任公司 | Multiple-antitheft tensioning device |
| CN107553377A (en) * | 2017-10-27 | 2018-01-09 | 范永涛 | One kind fastens unidirectional dextrorotation cap nut socket wrench specially adapted for it method |
| CN108172367A (en) * | 2018-03-21 | 2018-06-15 | 辽宁电能发展股份有限公司 | A kind of outdoor transformer anti-theft device |
| CN111421330A (en) * | 2020-05-12 | 2020-07-17 | 重庆科技学院 | Pneumatic sleeve capable of automatically centering and positioning |
-
2009
- 2009-03-03 CN CNA2009101269940A patent/CN101504028A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358827A (en) * | 2014-11-25 | 2015-02-18 | 内蒙古路桥有限责任公司 | Multiple-antitheft tensioning device |
| CN107553377A (en) * | 2017-10-27 | 2018-01-09 | 范永涛 | One kind fastens unidirectional dextrorotation cap nut socket wrench specially adapted for it method |
| CN108172367A (en) * | 2018-03-21 | 2018-06-15 | 辽宁电能发展股份有限公司 | A kind of outdoor transformer anti-theft device |
| CN108172367B (en) * | 2018-03-21 | 2024-02-27 | 辽宁电能发展股份有限公司 | Outdoor transformer anti-theft device |
| CN111421330A (en) * | 2020-05-12 | 2020-07-17 | 重庆科技学院 | Pneumatic sleeve capable of automatically centering and positioning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090812 |