CN2504247Y - Multihole front clamping jack - Google Patents
Multihole front clamping jack Download PDFInfo
- Publication number
- CN2504247Y CN2504247Y CN 01233606 CN01233606U CN2504247Y CN 2504247 Y CN2504247 Y CN 2504247Y CN 01233606 CN01233606 CN 01233606 CN 01233606 U CN01233606 U CN 01233606U CN 2504247 Y CN2504247 Y CN 2504247Y
- Authority
- CN
- China
- Prior art keywords
- plate
- stretch
- sleeve
- draw
- compression
- 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
A porous front-lock type jack comprises an oil cylinder 4 mounted on a screw nut 1 and a piston 3 and a tension sleeve 5 arranged in the oil cylinder 4 in turn. One end of the tension sleeve 5 is pressed firm by the screw nut 1, and the other end is connected with a tension anchor plate 10 via threads; the tension anchor plate has an anchor hole and a clamping sheet 9. The jack also has an automatic compression device consisting of a compression plate 6, a compression spring 7 and a compression sleeve 8 and an automatic top-loosening device consisting of a positioning plate 11, a top-loosening plate 12 and a top-loosening sleeve 13. On a compression plate sleeve, the compression sleeve, thereinto, the compression spring is sleeved and fixed on the tension anchor plate via bolts; one end of the compression sleeve pushes the large end of the clamping sheet; at the other edge of the tension anchor plate, the top-loosening sleeve butts the small end of the clamping sheet and connects with the top-loosening plate by welding or via threads; the top-loosening plate is fixed on the tension anchor plate via screwed connection; the positioning plate is fixed on the piston with bolts. The jack has simple structure as well as safe and reliable performance in construction.
Description
One, technical field:
The utility model relates to a kind of vehicle for construction, especially for the preceding cassette stretch-draw jack of tensioned prestressing bar.
Two, background technology:
Along with the development of prestressing technique, unit in charge of construction is more and more higher to the performance requriements of prestress facility each side, and the preceding card of stretch-draw jack is the developing direction of jack.Cassette jack before a kind of porous is disclosed as 95219193.8, its complex structure, pressing plate and as between the support rebound of top deals by bolted connection, otherwise the hole that has top pine cover and stretch-draw anchor slab during work is not to the phenomenon of position.
Three, technical scheme:
Technical problem to be solved in the utility model is: solve before the existing porous cassette jack and compress and loosen apparatus structure complexity, unhandy problem, provide a kind of simple in structure on the basis that does not influence tension of prestressed tendon, anchoring property, cassette jack before the safe and reliable porous.
For this reason, more than the utility model before the hole solution of cassette jack be: adopt automatic compacting device of forming by pressing plate, holddown spring, clamping sleeve and the loose device of forming by locating plate, top deals, top pine cover in automatic top, and it be contained in respectively on the two sides of stretch-draw anchor slab.
Its concrete structure is: cassette jack before a kind of porous, comprise the oil cylinder on nut and be assemblied in in-oil cylinder piston, stretch-draw cover successively, one end of stretch-draw cover is compressed by nut, the other end of stretch-draw cover is connected with the stretch-draw anchor slab by screw thread, anchor hole and intermediate plate are arranged on the stretch-draw anchor slab, it is characterized in that: this jack is by an automatic compacting device of being made up of pressing plate, holddown spring, clamping sleeve and the loose device in automatic top is made up of locating plate, top deals, top pine cover; Pressing plate put be with holddown spring clamping sleeve by being bolted on the stretch-draw anchor slab, clamping sleeve one end roof pressure is on the big end of intermediate plate, another side at the stretch-draw anchor slab, top pine cover withstands the intermediate plate small end, links to each other with the top deals by welding or thread connecting mode, the top deals is fixed on the stretch-draw anchor slab by bolt connecting mode, and locating plate is fixed by bolts on the piston.
Because the utility model adopts automatic compacting device of being made up of pressing plate, holddown spring, clamping sleeve and the automatic top pine device of being made up of locating plate, top deals, top pine cover, and it is contained in respectively on the two sides of stretch-draw anchor slab, top pine cover links together with the stretch-draw anchor slab, move with intermediate plate, the hole that does not have top pine cover and a stretch-draw anchor slab is not to the phenomenon of position; And do not need auxiliary devices such as bolt or pilot bar, simple in structure, safe and reliable.
Description of drawings:
Fig. 1: cassette jack scheme drawing before the utility model porous.
The specific embodiment:
Cassette jack before a kind of porous, the piston 3, the stretch-draw that comprise the oil cylinder 4 on nut 1 and be assemblied in successively in the oil cylinder 4 overlap 5, end at stretch-draw cover 5 is compressed by nut 1, the other end of stretch-draw cover 5 is connected with stretch-draw anchor slab 10 by screw thread, anchor hole and intermediate plate 9 are arranged, the loose devices in automatic tops that this jack also has an automatic compacting device of being made up of pressing plate 6, holddown spring 7, clamping sleeve 8 and is made up of locating plate 11, top deals 12, top pine cover 13 on the anchor slab 10; Pressing plate 6 put be with holddown spring 7 clamping sleeve 8 by being bolted on the stretch-draw anchor slab 10, clamping sleeve 8 one end roof pressures are on intermediate plate 9 big ends, another side at stretch-draw anchor slab 10, top pine cover 13 withstands intermediate plate 9 small ends, links to each other with top deals 12 by welding or thread connecting mode, top deals 12 is fixed on the stretch-draw anchor slab 10 by bolt connecting mode, and locating plate 11 is fixed by bolts on the piston.
Claims (1)
1, cassette jack before a kind of porous, comprise that the oil cylinder (4) on nut (1) reaches piston (3), the stretch-draw cover (5) that is assemblied in successively in the oil cylinder (4), end at stretch-draw cover (5) is compressed by nut (1), the other end of stretch-draw cover (5) is connected with stretch-draw anchor slab (10) by screw thread, anchor hole and intermediate plate (9) are arranged on the anchor slab (10), it is characterized in that: the loose device in automatic top that this jack has an automatic compacting device of being made up of pressing plate (6), holddown spring (7), clamping sleeve (8) and is made up of locating plate (11), top deals (12), top pine cover (13); Pressing plate (6) put be with holddown spring (7) clamping sleeve (8) by being bolted on the stretch-draw anchor slab (10), clamping sleeve (8) one end roof pressures are on the big end of intermediate plate (9), another side in stretch-draw anchor slab (10), top pine cover (13) withstands intermediate plate (9) small end, links to each other with top deals (12) by welding or thread connecting mode, top deals (12) is fixed on the stretch-draw anchor slab (10) by bolt connecting mode, and locating plate (11) is fixed by bolts on the piston (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01233606 CN2504247Y (en) | 2001-07-31 | 2001-07-31 | Multihole front clamping jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01233606 CN2504247Y (en) | 2001-07-31 | 2001-07-31 | Multihole front clamping jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2504247Y true CN2504247Y (en) | 2002-08-07 |
Family
ID=33647395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01233606 Expired - Fee Related CN2504247Y (en) | 2001-07-31 | 2001-07-31 | Multihole front clamping jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2504247Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045018A (en) * | 2014-05-30 | 2014-09-17 | 柳州泰姆预应力机械有限公司 | Front-clamping type jack |
| CN106395674A (en) * | 2016-11-25 | 2017-02-15 | 柳州市邱姆预应力机械有限公司 | Intelligent front-clamping type jack |
| CN110028006A (en) * | 2019-04-24 | 2019-07-19 | 杭州富阳泳富机械有限公司 | A kind of vehicle jack is quickly met an urgent need fixture |
-
2001
- 2001-07-31 CN CN 01233606 patent/CN2504247Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045018A (en) * | 2014-05-30 | 2014-09-17 | 柳州泰姆预应力机械有限公司 | Front-clamping type jack |
| CN106395674A (en) * | 2016-11-25 | 2017-02-15 | 柳州市邱姆预应力机械有限公司 | Intelligent front-clamping type jack |
| CN110028006A (en) * | 2019-04-24 | 2019-07-19 | 杭州富阳泳富机械有限公司 | A kind of vehicle jack is quickly met an urgent need fixture |
| CN110028006B (en) * | 2019-04-24 | 2020-05-15 | 杭州富阳泳富机械有限公司 | Quick emergency clamp for vehicle-mounted jack |
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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 |