CN202063668U - Jack of integrated anchor tool - Google Patents
Jack of integrated anchor tool Download PDFInfo
- Publication number
- CN202063668U CN202063668U CN2011200286532U CN201120028653U CN202063668U CN 202063668 U CN202063668 U CN 202063668U CN 2011200286532 U CN2011200286532 U CN 2011200286532U CN 201120028653 U CN201120028653 U CN 201120028653U CN 202063668 U CN202063668 U CN 202063668U
- Authority
- CN
- China
- Prior art keywords
- jack
- anchor slab
- anchor
- work
- tool
- 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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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a jack of an integrated anchor tool, comprising a cylinder body and a piston. Nuts and lengthening sleeves are fixedly and respectively arranged on two ends of a cylinder body through bolts; a connection cylinder is arranged in the piston; one end of the connection cylinder is threadedly connected with a nut and the other end of the connection cylinder is threadedly connected with an anchor slab tool; end faces of the anchor slab tool and the connection cylinder tightly press against the end faces of the lengthening sleeves; a working anchor slab is arranged on a front end of the lengthening sleeve; and a working clamping piece is arranged in the working anchor slab. According to the utility model, the application of the jack reduces the distance between the working anchor slab and the anchor slab tool; each beam of steel strand can save 0.9 meter after tensioning; and the situation of deadlock of the jack is avoided when the thread stripping of the clamping piece of a cross-core typed jack generates.
Description
Technical field
The utility model relates to prestress hydraulic jack technical field, specifically belongs to integrated moveable anchor jack.
Background technology
Prestressing technique is the gordian technique during high ferro is built, promptly the underrelaxation high strength steel strand (intensity reaches 2000MPa) of some is through in the concrete component in-to-in preformed hole, on the steel wire bundle at concrete component two ends, install strand tapered anchorage then, by tensioner stretch-draw steel strand such as hydraulic jacks, apply prestress for the high ferro concrete component, improve the loading strength of member, make member have good resistance to cleavage and earthquake resistance and prevention performance simultaneously.
The prestress hydraulic jack has broad application prospects as indispensable tensioner in the pre-stress construction.
In the concrete beam body reserving hole channel, put on steel strand (the every end length in reserve of steel strand is 0.8m), successively erection work anchor slab, work clip sheet, positioning plate, jack main body, instrument anchor slab and instrument intermediate plate.
After striking the clamping tool intermediate plate, start oil pump to the jack fuel feeding, piston moves, and by moveable anchor (instrument anchor slab and instrument intermediate plate) extended steel twisted wire, exerts pressure for the beam body.
After pulling force reaches design value, unloading, the steel strand retraction drives the work clip sheet follow-up, utilizes intermediate plate from anchor steel strand to be anchored in the work anchor slab.There is following problem in the feedthrough jack:
1, the every end length in reserve of steel strand is 0.8m, treats that intermediate plate is total to the 1.6m steel strand with two ends and cuts away waste material behind anchor.
2, the feedthrough jack in use will be pulled down moveable anchor after finishing one group of steel strand tension, moveable anchor will be reinstalled before next group stretch-draw, because the volume mass of moveable anchor is bigger, causes moveable anchor installation and dismounting difficulty big.
3, when the stripped thread situation appears in intermediate plate, moveable anchor is locked in the rear end of jack, deals with difficulty.Inner blocking type jack problems analysis:
1, the piston elongation end of jack is measured difficulty of steel strand stretch value by beam body one end in the use of inner blocking type jack in the market in the construction.
2, because the inner blocking type jack has increased part, assembling trouble, and maintenance difficult.
When 3, the stripped thread situation appears in work clip sheet, may locked jack main body, difficult treatment.
4, require the hole arragement direction of instrument anchor slab and work anchor slab unified in the construction, the inner blocking type jack is difficult to control.
The utility model content
The purpose of this utility model provides integrated moveable anchor jack, the application of jack has reduced the distance between work ground tackle and the instrument ground tackle, stretch-draw finishes the every bundle steel strand in back can save 0.9m, and jack is by locked situation when having avoided the feedthrough jack intermediate plate stripped thread situation to occur.
The technical solution adopted in the utility model is as follows:
Integrated moveable anchor jack, include cylinder body, piston, the two ends of cylinder body are equipped with nut, lengthening cover by bolt respectively, be provided with connecting cylinder in the piston, one end of connecting cylinder is connected with nut thread, and the other end instrument anchor slab that has been threaded, the end face of instrument anchor slab, connecting cylinder are close proximity to the end face of lengthening cover, the front end of lengthening cover is connected with the work anchor slab is installed, and in the work anchor slab work clip sheet is installed.
Be provided with positioning plate between the front end of described lengthening cover and the work anchor slab.
Concrete work progress of the present utility model is:
1, moveable anchor, nut are connected on the internal and external screw thread of connecting cylinder, and in the punching tube with its jack of packing into together, with socket head cap screw with this overall fixed on the main body of jack.
2, the cover that will extend is fixed on the front end of jack.
3, after erection work ground tackle, positioning plate, mobile jack main body is through steel strand in the jack in-to-in moveable anchor.
4, strike the clamping tool intermediate plate, start oil pump to the jack fuel feeding, piston moves, and by moveable anchor (instrument anchor slab and instrument intermediate plate) extended steel twisted wire, exerts pressure for the beam body.
After pulling force reached design value, unloading was constructed next time.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1, the application of this jack has reduced the distance between work ground tackle and the instrument ground tackle, makes the length in reserve of the every end of steel strand reduce to 0.35m by 0.8m, and stretch-draw finishes the every bundle steel strand in back can save 0.9m.
2, nut and lengthening cover are connected the rear and front end of jack by hexagonal bar iron, after finishing single tension, only need the instrument intermediate plate is taken off, and need not dismantle again before stretch-draw next time, the mounting tools anchor slab, have improved operating efficiency.Avoided screw thread damage in common inner blocking type jack, the built-in jack installation process of moveable anchor.
3, between connecting cylinder and the nut by being threaded, can be in the construction according to the position, hole of the position adjustments moveable anchor of work anchor plate hole, steel strand comes convenient and swift.
4, fall an oblique angle at instrument anchor slab straight hole end, it is convenient that steel strand penetrate the instrument anchor slab.
5, intermediate plate stripped thread problem occurs, can the jack main body be unloaded with nut, connecting cylinder from the dismounting of jack main body down again, jack is by locked situation when having avoided the feedthrough jack intermediate plate stripped thread situation to occur.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Referring to accompanying drawing, integrated moveable anchor jack, include cylinder body 1, piston 2, the two ends of cylinder body 1 are equipped with nut 3, lengthening cover 4 by bolt respectively, be provided with connecting cylinder 5 in the piston, one end of connecting cylinder 5 is threaded with nut 3, the other end instrument anchor slab 6 that has been threaded, the end face of instrument anchor slab, connecting cylinder is close proximity to the end face of lengthening cover, the front end of lengthening cover is connected with work anchor slab 7 is installed, in the work anchor slab 7 work clip sheet 8 is installed, is provided with positioning plate 9 between the front end of lengthening cover and the work anchor slab.
Claims (2)
1. integrated moveable anchor jack, include cylinder body, piston, it is characterized in that: the two ends of cylinder body are equipped with nut, lengthening cover by bolt respectively, be provided with connecting cylinder in the piston, one end of connecting cylinder is connected with nut thread, and the other end instrument anchor slab that has been threaded, the end face of instrument anchor slab, connecting cylinder are close proximity to the end face of lengthening cover, the front end of lengthening cover is connected with the work anchor slab is installed, and in the work anchor slab work clip sheet is installed.
2. integrated moveable anchor jack according to claim 1 is characterized in that: be provided with positioning plate between the front end of described lengthening cover and the work anchor slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200286532U CN202063668U (en) | 2011-01-28 | 2011-01-28 | Jack of integrated anchor tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200286532U CN202063668U (en) | 2011-01-28 | 2011-01-28 | Jack of integrated anchor tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202063668U true CN202063668U (en) | 2011-12-07 |
Family
ID=45057538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200286532U Expired - Fee Related CN202063668U (en) | 2011-01-28 | 2011-01-28 | Jack of integrated anchor tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202063668U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011008A (en) * | 2012-12-05 | 2013-04-03 | 柳州市桥厦工程管材有限公司 | Chuck connection front clamping type jack |
| CN106121272A (en) * | 2016-06-12 | 2016-11-16 | 岩土科技股份有限公司 | Building pillar apparatus for removing and method |
| CN108193883A (en) * | 2018-01-08 | 2018-06-22 | 中交三公局第工程有限公司 | Flat hogging moment steel strand wires jack |
| CN112976299A (en) * | 2021-02-26 | 2021-06-18 | 中交一公局第二工程有限公司 | Skew prefabricated T-beam prestress tensioning construction method and auxiliary device |
-
2011
- 2011-01-28 CN CN2011200286532U patent/CN202063668U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011008A (en) * | 2012-12-05 | 2013-04-03 | 柳州市桥厦工程管材有限公司 | Chuck connection front clamping type jack |
| CN103011008B (en) * | 2012-12-05 | 2015-07-29 | 柳州市桥厦工程管材有限公司 | Clip type jack before chuck connects |
| CN106121272A (en) * | 2016-06-12 | 2016-11-16 | 岩土科技股份有限公司 | Building pillar apparatus for removing and method |
| CN108193883A (en) * | 2018-01-08 | 2018-06-22 | 中交三公局第工程有限公司 | Flat hogging moment steel strand wires jack |
| CN112976299A (en) * | 2021-02-26 | 2021-06-18 | 中交一公局第二工程有限公司 | Skew prefabricated T-beam prestress tensioning construction method and auxiliary device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20170128 |