CN203509532U - Cable clamp stretcher - Google Patents
Cable clamp stretcher Download PDFInfo
- Publication number
- CN203509532U CN203509532U CN201320577765.2U CN201320577765U CN203509532U CN 203509532 U CN203509532 U CN 203509532U CN 201320577765 U CN201320577765 U CN 201320577765U CN 203509532 U CN203509532 U CN 203509532U
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- CN
- China
- Prior art keywords
- hole
- piston
- stretcher
- pulling
- cable clamp
- 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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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model discloses a cable clamp stretcher which comprises a supporting sleeve. A pulling sleeve is installed in the supporting sleeve in a matched mode, the middle of one side of the supporting sleeve is provided with a notch, the circumference, corresponding to the notch, of the pulling sleeve is provided with poking holes, a cylinder is pressed onto the upper end face of the supporting sleeve, a piston is installed in the cylinder in a sealed mode, the middle of the piston is provided with a through hole, the inside of the through hole is provided with a pull rod in a matched mode, the middle of the pull rod is provided with a step guide hole, the lower end portion of the step guide hole is provided with internal threads matched with a cable clamp connection screw rod in a screwed mode, a locking nut is arranged on an outer cylindrical face of the upper end portion of the pull rod in a screwed mode, the circumference of the locking nut is also provided with poking holes, the top end of the cylinder is provided with a cover plate in a matched mode, the upper end portion of the piston penetrates through the middle of the cover plate, and the cable clamp stretcher further comprises poking rods matched with the poking holes. The cable clamp stretcher is special for installation of a suspension bridge main cable clamp, the structure is simple, operations and maintenance are facilitated, the price is low, one stretcher can be provided with different pull rods, locking nuts and pulling sleeves, and the cable clamp stretcher is used for pretightening bolts of different specifications.
Description
Technical field
The utility model relates to a kind of stretcher, relates in particular to a kind of cord clip stretcher.
Background technology
In existing bolt tensioning jack structure, work bolt is mostly directly to spin together with piston when stretching, and spiral is screwing while installing with piston, inconvenient operation, hand labor intensity greatly, waste time and energy, inefficiency.
Utility model content
The purpose of this utility model is in order to make up the deficiency of prior art, and a kind of cord clip stretcher is provided.
The utility model is achieved through the following technical solutions:
A kind of cord clip stretcher, it is characterized in that: include support set, in described support set, coordinate pulling sleeve is installed, one middle side part of described support set is provided with breach, on the pulling sleeve circumferential position of described breach correspondence position, be distributed with pulling hole, described support set upper surface is pressed with cylinder body, in described cylinder body, be provided with stepped hole, in described stepped hole, be sealed and installed with piston, the middle part of described piston is provided with through hole, in described through hole, coordinate and middle part is installed with the pull bar of step pilot hole, the bottom of described step pilot hole is provided with the internal thread screwing with cord clip connecting screw rod, on the upper end external cylindrical surface of described pull bar, also there is external screw thread, and be combined with locking nut, on described locking nut circumference, be also distributed with pulling hole, the top cooperation of described cylinder body is provided with cover plate, the upper end of described piston is through cover plate middle part, and coordinate with its guiding, also include the driving lever coordinating with pulling hole.
The external cylindrical surface middle part of described piston is provided with annular boss, cylinder body corresponding to annular boss lower surface is provided with oil inlet passage, the oil-in of oil inlet passage is provided with snap joint, described piston upper end external cylindrical surface is provided with thin red line, the through hole upper end at described piston middle part is provided with internal thread, and described internal thread coordinates with the external screw thread on the external cylindrical surface of pull bar upper end.
The utility model has the advantages that:
The utility model is exclusively used in suspension bridge master and lookes at the installation of cord clip, and it is simple in structure, convenient operation and maintenance, and low price, same stretcher can be equipped with different pull bars, locking nut and pulling sleeve, for the tools for bolts ' pretension of different size.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The specific embodiment
Referring to accompanying drawing, a kind of cord clip stretcher, include support set 7, in support set 7, coordinate pulling sleeve 6 is installed, one middle side part of support set 7 is provided with breach, on pulling sleeve 6 circumferential positions of breach correspondence position, be distributed with pulling hole 10, support set 7 upper surfaces are pressed with cylinder body 4, in cylinder body 4, be provided with stepped hole, in stepped hole, be sealed and installed with piston 9, the middle part of piston 9 is provided with through hole, in through hole, coordinate and middle part is installed with the pull bar 1 of step pilot hole, the bottom of step pilot hole is provided with the internal thread screwing with cord clip connecting screw rod, on the upper end external cylindrical surface of pull bar 1, also there is external screw thread, and be combined with locking nut 2, on locking nut 2 circumference, be also distributed with pulling hole 10, the top cooperation of cylinder body 4 is provided with cover plate 3, the upper end of piston 9 is through cover plate 3 middle parts, and coordinate with its guiding, also include the driving lever 8 coordinating with pulling hole 10.The external cylindrical surface middle part of piston 9 is provided with annular boss, cylinder body 4 corresponding to annular boss lower surface is provided with oil inlet passage, the oil-in of oil inlet passage is provided with snap joint 5, piston 9 upper end external cylindrical surfaces are provided with thin red line, the through hole upper end at piston 9 middle parts is provided with internal thread, and internal thread coordinates with the external screw thread on pull bar 1 upper end external cylindrical surface.
Operation principle:
A. support set 7 and pulling sleeve 6 are enclosed within on nut, guarantee supporting surface and the bolt axis of support set 7
Vertically, support set axis and bolt axis coaxle.
B. cylinder body 4 is placed on support set 7, pull bar 1 is put in cylinder body, use driving lever 8 dextrorotation pull bars 1, pull bar 1 is screwed on bolt completely, then screw locking nut 2, it is leaned against on cylinder piston end face.
C. after hydraulic elongator and pumping plant being connected with high-pressure rubber pipe, relief lever on locking pumping plant, operation depression bar is observed gauge hand, when gauge hand points to required pressure simultaneously, unclamp depression bar, with driving lever 8 rotation pulling sleeve, 6(are locking nut clockwise, counterclockwise for unscrewing nut), and observe whether joint close of bolt and supporting surface by peep hole, after joint close, can unscrew relief lever, now bolt has reached predetermined pretension effect.
If d. stretcher has reached range (seeing thin red line), stop immediately upper pressure, with driving lever 8 rotation pulling sleeves 6, make after nut and supporting surface joint close, unscrew the relief lever on pumping plant, then use the pulling hole of driving lever 8 rotating rods 1, pull bar 1 screws relief lever downwards again after screwing, repeating step c, until pump station pressure reaches required pressure.
E. when bolt reaches after pretension requirement, unscrew the relief lever on pumping plant, can take off stretcher.
Claims (2)
1. a cord clip stretcher, it is characterized in that: include support set, in described support set, coordinate pulling sleeve is installed, one middle side part of described support set is provided with breach, on the pulling sleeve circumferential position of described breach correspondence position, be distributed with pulling hole, described support set upper surface is pressed with cylinder body, in described cylinder body, be provided with stepped hole, in described stepped hole, be sealed and installed with piston, the middle part of described piston is provided with through hole, in described through hole, coordinate and middle part is installed with the pull bar of step pilot hole, the bottom of described step pilot hole is provided with the internal thread screwing with cord clip connecting screw rod, on the upper end external cylindrical surface of described pull bar, also there is external screw thread, and be combined with locking nut, on described locking nut circumference, be also distributed with pulling hole, the top cooperation of described cylinder body is provided with cover plate, the upper end of described piston is through cover plate middle part, and coordinate with its guiding, also include the driving lever coordinating with pulling hole.
2. cord clip stretcher according to claim 1, it is characterized in that: the external cylindrical surface middle part of described piston is provided with annular boss, cylinder body corresponding to annular boss lower surface is provided with oil inlet passage, the oil-in of oil inlet passage is provided with snap joint, described piston upper end external cylindrical surface is provided with thin red line, the through hole upper end at described piston middle part is provided with internal thread, and described internal thread coordinates with the external screw thread on the external cylindrical surface of pull bar upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320577765.2U CN203509532U (en) | 2013-09-17 | 2013-09-17 | Cable clamp stretcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320577765.2U CN203509532U (en) | 2013-09-17 | 2013-09-17 | Cable clamp stretcher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203509532U true CN203509532U (en) | 2014-04-02 |
Family
ID=50368514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320577765.2U Expired - Fee Related CN203509532U (en) | 2013-09-17 | 2013-09-17 | Cable clamp stretcher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203509532U (en) |
-
2013
- 2013-09-17 CN CN201320577765.2U patent/CN203509532U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20150917 |
|
| EXPY | Termination of patent right or utility model |