CN201671060U - Sliding device for prestress tensioning jack - Google Patents
Sliding device for prestress tensioning jack Download PDFInfo
- Publication number
- CN201671060U CN201671060U CN2010201853795U CN201020185379U CN201671060U CN 201671060 U CN201671060 U CN 201671060U CN 2010201853795 U CN2010201853795 U CN 2010201853795U CN 201020185379 U CN201020185379 U CN 201020185379U CN 201671060 U CN201671060 U CN 201671060U
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- CN
- China
- Prior art keywords
- baffle plates
- jack
- rotary shaft
- sliding device
- lifting chain
- 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
A sliding device for a prestress tensioning jack comprises a hanging cross bar for hanging a lifting chain hoist. The hanging cross bar is fixedly connected between the lower portions of two baffle plates to form a support; two connecting bars are fixedly connected between two upper corners of the two baffle plates; a rotary shaft is horizontally connected between the middles of the two baffle plates in a penetrating manner; the middle of the rotary shaft is rotationally connected with a roller wheel; the generatrix of the roller wheel is circular arc-shaped; a screw cap is arranged at one end of the rotary shaft; and a dowel is arranged at the other end of the rotary shaft. The hanging cross bar at the lower end of the sliding device is connected with the tensioning jack through the lifting chain hoist, and the roller wheel on the upper portion can roll along a steel tube inside a scaffold. The sliding device effectively solves the problem of transverse movement of the jack, is simple, practical, safe and feasible, can improve the efficiency of prestress tensioning operation, also favors accelerating construction progress, and can be widely applied to various prestress reinforced steel tensioning operation sites.
Description
Technical field
The utility model relates to the servicing unit in a kind of prestressed stretch-draw operation.
Background technology
At present, in the construction of highway bridge post stressed concrete, the prestressed reinforcement tension process is one critical process, and it directly influences the stretch-draw quality of case beam.The main tool of prestressed stretch-draw is the stretch-draw jack, whether its installation accurately is directly connected to the quality and the efficient of stretch-draw, method commonly used at present is to utilize the job site to put up scaffold, the upper end of lifting Chain block is hung on the cross bar on scaffold top, the lower end connects jack, utilize the lifting Chain block that jack is risen to specified altitude assignment, when needs are adjusted the lateral attitude of jack, can only come mobile jack in the position of cross bar upper end by mobile lifting Chain block.This method is inconvenient operation not only, and safety is relatively poor, can not satisfy the requirement of continuously tensioning construction.
The utility model content
The purpose of this utility model provides a kind of carriage that is used for the prestressed stretch-draw jack, solves the problem of adjusting lifting Chain block and jack lateral displacement.
For achieving the above object, the utility model adopts following technical scheme: a kind of carriage that is used for the prestressed stretch-draw jack, comprise the suspended cross-beam that is used for the suspension lifting Chain block, described suspended cross-beam is fixedly connected between the bottom of two baffle plates and forms support, fixedly connected two connecting rods between two upper corners of two baffle plates, a roller is rotationally connected in the middle part of the horizontal cross-under rotating shaft between the middle part of two baffle plates, rotating shaft.The bus of described roller can be circular arc.One end of described rotating shaft has axle cap, and the other end is installed with pin.
Compared with prior art the utlity model has following characteristics and beneficial effect: the utility model has overcome in traditional prestressed reinforcement stretch-draw the shortcoming that can only come mobile jack by mobile lifting Chain block, has solved inaccurate ground stretch-draw quality and the not high technical problem of efficient of causing in jack installation site.
Owing to adopted a series of devices such as suspended cross-beam, connecting rod, rotating shaft and runner, the utility model can conveniently slide on scaffold, simple to operate, can improve prestressed stretch-draw operation quality and efficient effectively, satisfy the requirement of stretch-draw operation, help accelerating construction progress, the safety when having heightened simultaneously construction greatly.The periphery of roller is circular arc, is convenient to roller smooth sliding on steel pipe.The utility model can be widely used in various prestressed reinforcement stretch-draw operation fields.
Description of drawings
The utility model is described in more detail below in conjunction with accompanying drawing.
Fig. 1 is a main TV structure schematic diagram of the present utility model.
Fig. 2 is the schematic side view of Fig. 1.
Fig. 3 is the schematic top plan view of Fig. 1.
Reference numeral: 1-baffle plate, 2-connecting rod, 3-axle cap, 4-rotating shaft, 5-roller, 6-pin, 7-suspended cross-beam.
The specific embodiment
Embodiment is referring to shown in Fig. 1-3, this carriage that is used for the prestressed stretch-draw jack, comprise the suspended cross-beam 7 that is used for the suspension lifting Chain block, described suspended cross-beam 7 is fixedly connected between the bottom of two baffle plates 1 and forms support, fixedly connected two connecting rods 2 between two upper corners of two baffle plates 1, horizontal cross-under rotating shaft 4 between the middle part of two baffle plates 1, the rotating shaft 4 middle parts roller 5 that is rotationally connected.One end of described rotating shaft 4 has axle cap 3, and the other end is installed with pin 6.For making roller smooth sliding on steel pipe, the bus of described roller 5 can be circular arc.
This carriage that is used for the prestressed stretch-draw jack in use, at first this device is enclosed within on the steel pipe of scaffold top, roller 5 is supported on the scaffolding steel pipe, then the upper end of lifting Chain block is hung on the suspended cross-beam 7, jack is hung over lifting Chain block lower end, adjust the height of jack at last by the lifting Chain block, adjust the jack lateral displacement by the roller 5 of mobile sliding device.
Claims (3)
1. carriage that is used for the prestressed stretch-draw jack, comprise the suspended cross-beam (7) that is used for the suspension lifting Chain block, it is characterized in that: described suspended cross-beam (7) is fixedly connected between the bottom of two baffle plates (1) and forms support, fixedly connected two connecting rods (2) between two upper corners of two baffle plates (1), a roller (5) is rotationally connected in the middle part of the horizontal cross-under rotating shaft (4) between the middle part of two baffle plates (1), rotating shaft (4).
2. a kind of carriage that is used for the prestressed stretch-draw jack according to claim 1 is characterized in that: the bus of described roller (5) is circular arc.
3. a kind of carriage that is used for the prestressed stretch-draw jack according to claim 1 and 2 is characterized in that: an end of described rotating shaft (4) has axle cap (3), and the other end is installed with pin (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201853795U CN201671060U (en) | 2010-05-11 | 2010-05-11 | Sliding device for prestress tensioning jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201853795U CN201671060U (en) | 2010-05-11 | 2010-05-11 | Sliding device for prestress tensioning jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201671060U true CN201671060U (en) | 2010-12-15 |
Family
ID=43328472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201853795U Expired - Fee Related CN201671060U (en) | 2010-05-11 | 2010-05-11 | Sliding device for prestress tensioning jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201671060U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108532470A (en) * | 2018-05-21 | 2018-09-14 | 中交路桥华南工程有限公司 | Directive wheel |
| CN109057126A (en) * | 2018-08-17 | 2018-12-21 | 中国十七冶集团有限公司 | A kind of building decoration furred ceiling based on BIM technology |
-
2010
- 2010-05-11 CN CN2010201853795U patent/CN201671060U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108532470A (en) * | 2018-05-21 | 2018-09-14 | 中交路桥华南工程有限公司 | Directive wheel |
| CN109057126A (en) * | 2018-08-17 | 2018-12-21 | 中国十七冶集团有限公司 | A kind of building decoration furred ceiling based on BIM technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20120511 |