CN2577031Y - Trapezoidal left-right-hand check bolt - Google Patents
Trapezoidal left-right-hand check bolt Download PDFInfo
- Publication number
- CN2577031Y CN2577031Y CN 02270716 CN02270716U CN2577031Y CN 2577031 Y CN2577031 Y CN 2577031Y CN 02270716 CN02270716 CN 02270716 CN 02270716 U CN02270716 U CN 02270716U CN 2577031 Y CN2577031 Y CN 2577031Y
- Authority
- CN
- China
- Prior art keywords
- bolt
- cylindrical
- screw thread
- trapezoidal
- 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 trapezoidal left-right-hand check bolt, which belongs to commonly used screw thread connecting pieces for mechanical equipment. The trapezoidal left-right-hand check bolt is composed of a bolt head 1 and a cylindrical bolt rod 2, wherein, one end of the cylindrical bolt rod 2 is provided with a cylindrical trapezoid 5 which is respectively provided with screw thread 3 and screw thread 4 which are in opposite directions. The utility model overcomes the defects of unsafety, low production efficiency, etc. at work which are caused by the loose of bolt connecting pieces owing to violent shock, and has the advantages of simple structure, convenient use, safety, etc.
Description
Affiliated technical field
The utility model relates to a kind of threaded connector, particularly bolt connection piece that can be locking.
Background technique
At present the most frequently used bolt connection piece is generally columniform bar and head is formed on the machinery, and there have screw thread, bolt head to have on the bar to be round, square with hexagonal, and the most frequently used is hexagonal.Nut is spun on the screw thread during assembling, and part surface is injured during for fear of spin nut, at packing ring of nut underneath.But this bolt connection piece, often at large-scale equipment, the aperiodicity that especially constantly is subjected to rolled piece in rolling process clashes, and make the door shape baffle plate lock bolt of fixed guide fittings crossbeam on the bearing support, constantly loosening in the operation of rolling, and influence is produced, and has reduced manufacturing efficiency.Because becoming flexible during bolt connects also brought unsafe factor to work.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, is difficult for when being subjected to impact force becoming flexible, and is convenient to processing, and safe again a kind of bolt.
The utility model is achieved in that and is provided with cylindrical trapezoidally at an end that includes bolt head and cylindrical bolt bar, is respectively equipped with the opposite screw thread of hand of spiral cylindrical on trapezoidal.
The utility model is owing to be provided with opposite cylindrical trapezoidal of threaded direction at an end of cylindrical bolt bar, thereby in use, can make two opposite to the jacking nut rotation direction, locking and the mechanical locking combined effect of friction links together, can be effectively locking, avoid having improved working efficiency owing to the loosening unsafe factor that brings of bolt connection piece.
The utility model is simple in structure, and is easy to use, is convenient to promote.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Accompanying drawing 1 is a structural representation of the present utility model.
Schematic representation when accompanying drawing 2 is a user mode of the present utility model.
Among the figure, the 1-bolt head; 2-cylindrical bolt bar; The 3-screw thread; The 4-screw thread; 5-is cylindrical trapezoidal; The 6-link; The 7-link; The 8-nut; The 9-nut.
Embodiment
Be respectively equipped with hand of spiral opposite screw thread 3 and screw thread 4 comprising that a end by bolt head 1 and cylindrical bolt bar 2 is provided with on cylindrical trapezoidal 5, cylindrical trapezoidal 5.
In use cylindrical bolt bar 2 is passed link 6 and 7, nut 8 is inserted in cylindrical trapezoidal 5 stub ends tightens, then will the nut 9 opposite be inserted in cylindrical trapezoidal 5 little head end and tighten with nut 8 hand of spirals.When one loosening trend being arranged, another just in time is fastening, and two nuts are linked together, and just can play effectively locking effect.
The utility model is simple in structure, and is easy to use, safe, is convenient to promote, and is the desirable bolt connection piece that main equipment uses.
Claims (1)
1, a kind ofly revolves chek bolt about trapezoidal, it is to be made of bolt head (1) and cylindrical bolt bar (2), it is characterized in that being provided with cylindrical trapezoidal (5), on cylindrical trapezoidal (5), be respectively equipped with opposite screw thread of hand of spiral (3) and screw thread (4) at an end of cylindrical bolt bar (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02270716 CN2577031Y (en) | 2002-11-11 | 2002-11-11 | Trapezoidal left-right-hand check bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02270716 CN2577031Y (en) | 2002-11-11 | 2002-11-11 | Trapezoidal left-right-hand check bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2577031Y true CN2577031Y (en) | 2003-10-01 |
Family
ID=33735707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02270716 Expired - Fee Related CN2577031Y (en) | 2002-11-11 | 2002-11-11 | Trapezoidal left-right-hand check bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2577031Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493996A (en) * | 2011-12-20 | 2012-06-13 | 重庆长安汽车股份有限公司 | Special-shaped assembly bolt |
| CN102705341A (en) * | 2012-06-25 | 2012-10-03 | 中国十七冶集团有限公司 | Left-handed and right-handed rotation nut locking device for large-diameter shaft end |
| CN102827994A (en) * | 2012-07-25 | 2012-12-19 | 江苏永钢集团有限公司 | Tandem-preventing shaft for converter bearing |
-
2002
- 2002-11-11 CN CN 02270716 patent/CN2577031Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493996A (en) * | 2011-12-20 | 2012-06-13 | 重庆长安汽车股份有限公司 | Special-shaped assembly bolt |
| CN102705341A (en) * | 2012-06-25 | 2012-10-03 | 中国十七冶集团有限公司 | Left-handed and right-handed rotation nut locking device for large-diameter shaft end |
| CN102705341B (en) * | 2012-06-25 | 2014-06-11 | 中国十七冶集团有限公司 | Left-handed and right-handed rotation nut locking device for large-diameter shaft end |
| CN102827994A (en) * | 2012-07-25 | 2012-12-19 | 江苏永钢集团有限公司 | Tandem-preventing shaft for converter bearing |
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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 |