CN202046833U - Lifting jack - Google Patents
Lifting jack Download PDFInfo
- Publication number
- CN202046833U CN202046833U CN2011201255226U CN201120125522U CN202046833U CN 202046833 U CN202046833 U CN 202046833U CN 2011201255226 U CN2011201255226 U CN 2011201255226U CN 201120125522 U CN201120125522 U CN 201120125522U CN 202046833 U CN202046833 U CN 202046833U
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- China
- Prior art keywords
- piston
- hydraulic ram
- jack
- hydrocylinder
- lifting jack
- 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 discloses a lifting jack convenient to carry. The lifting jack comprises a hydrocylinder, a piston is arranged in the hydrocylinder, an oil pipe joint is arranged at one sealed end of the hydrocylinder, and a suspension device is arranged on the hydrocylinder. The suspension device can hoist the lifting jack, so that the lifting jack is very convenient when being carried, safety accidents are not easy to happen, and multiple persons can cooperate to carry the lifting jack or mechanical equipment can be adopted for carrying, thus greatly improving the working efficiency. The suspension device formed by hoisting rings is connected with the hydrocylinder by a detachable structure, the structure is simple, and the cost is low. A baffle is arranged at the top of the piston and fixes the piston, and residual hydraulic oil in the hydrocylinder can be prevented from jacking up the piston, so that damage to the piston due to collision can be prevented. A nut is arranged at the upper part of the hydrocylinder, and the nut and the piston can support a beam jointly, so that the sedimentation of the beam caused by shrinkage of the piston after a long time can be avoided. The lifting jack is suitable for popularization and application in the field of bridge jacking.
Description
Technical field
The utility model relates to the bridge jacking field, especially a kind of jack.
Background technology
Bridge jacking is meant the operating process that jacking apparatus such as adopting jack is raised the bridge major bearing structures, at present, employed jack comprises hydraulic ram in the bridge jacking engineering, in hydraulic ram, be provided with piston, be provided with tubing interface at hydraulic ram leak free one end, because jack will bear very big power, the metal that it is good that hydraulic ram and piston all adopt the load performance is made, this just makes that the weight of jack is heavier, the weight of a general jack is the twenty or thirty kilogram at least, six or seven ten kilograms at most, in the bridge jacking process, jack need be carried on the scaffold up to tens of meters usually or on the Dun Ding of bridge pier, because the outer wall of jack is smooth, also not having can be for the handle of operating personal carrying, hook etc., make jack very painstaking when carrying, also inconvenient, safety misadventure takes place easily, and can't allow many people carry jointly, work efficiency is very low.In addition, when remaining hydraulic oil is arranged in the hydraulic ram, when carrying,, piston is collided and damages easily with piston jack-up.
The utility model content
Technical problem to be solved in the utility model provides a kind of jack of being convenient to carry.
The technical scheme that its technical matters that solves the utility model adopts is: this jack, comprise hydraulic ram, and in hydraulic ram, be provided with piston, be provided with tubing interface at hydraulic ram leak free one end, described hydraulic ram is provided with erecting by overhang.
Further be that described erecting by overhang is arranged on the top of hydraulic ram.
Further be, described erecting by overhang comprises suspension ring, and suspension ring are connected with hydraulic ram by demountable structure.
Further be, described demountable structure comprises screw mandrel and is arranged on tapped bore on the hydraulic ram, and screw mandrel is arranged on the suspension ring and is suitable with tapped bore, and screw mandrel can be screwed in the tapped bore.
Further be, described piston head is provided with baffle plate, has the through hole suitable with screw mandrel on the baffle plate, is screwed in the tapped bore behind the screw mandrel insertion through hole baffle plate is fixed.
Further be that the top of described hydraulic ram is provided with auxiliary support structure.
Further be, on the top of described hydraulic ram nut be set and form described auxiliary support structure that the length of nut and the stroke of piston are complementary, nut and hydraulic ram are by being threaded.
The beneficial effects of the utility model are: by erecting by overhang is set on hydraulic ram, when the carrying jack, can reeve erecting by overhang slings jack, make jack very convenient when carrying, be not easy to take place safety misadventure, and can allow common carrying of many people or employing mechanical equipment carry, improved work efficiency greatly.Erecting by overhang is arranged on the top of hydraulic ram, is to hang jack for convenience.The erecting by overhang of forming by suspension ring, and be connected with hydraulic ram by demountable structure, simple in structure, cost is low, and can very easily suspension ring be removed when using jack, in order to avoid influence the jacking operation.By the demountable structure that screw mandrel, tapped bore are formed, convenient disassembly, simple in structure, cost is lower.Baffle plate is set and is fixed at piston head, can avoid hydraulic oil remaining in the hydraulic ram, prevent that piston is collided and damages piston jack-up.Top at hydraulic ram is provided with auxiliary support structure, after piston reaches the stroke that needs, can avoid piston to cause the sedimentation of beam body in long-time after contraction by auxiliary support structure and piston together support beam body.By the auxiliary support structure that nut is formed, easy to operate, only need turn nut and get final product to appointed positions, and also simple in structure, cost is low.
Description of drawings
Fig. 1 is the utility model jack structure scheme drawing;
Be labeled as among the figure: hydraulic ram 1, piston 2, tubing interface 3, suspension ring 4, screw mandrel 5, tapped bore 6, baffle plate 7, nut 8.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
As shown in Figure 1, this jack comprises hydraulic ram 1, is provided with piston 2 in hydraulic ram 1, is provided with tubing interface 3 at hydraulic ram 1 leak free one end, and described hydraulic ram 1 is provided with erecting by overhang.By on hydraulic ram 1, erecting by overhang being set, when the carrying jack, can reeve erecting by overhang slings jack, make jack very convenient when carrying, be not easy to take place safety misadventure, and can allow common carrying of many people or employing mechanical equipment carry, improved work efficiency greatly.Described erecting by overhang is arranged on the top of hydraulic ram 1, is to hang jack for convenience.Described erecting by overhang comprises suspension ring 4, and suspension ring 4 are connected with hydraulic ram 1 by demountable structure, and this erecting by overhang is simple in structure, and cost is low, and can very easily suspension ring 4 be removed when using jack, in order to avoid influence the jacking operation.Described demountable structure comprises screw mandrel 5 and is arranged on tapped bore 6 on the hydraulic ram 1, and screw mandrel 5 is arranged on the suspension ring 4 and is suitable with tapped bore 6, and screw mandrel 5 can be screwed in the tapped bore 6, the demountable structure of forming by screw mandrel 5, tapped bore 6, convenient disassembly, simple in structure, cost is lower.Described piston 2 tops are provided with baffle plate 7, have the through hole suitable on the baffle plate 7 with screw mandrel 5, screw mandrel 5 inserts and is screwed in the tapped bore 6 behind the through holes baffle plate 7 is fixing, can avoid hydraulic oil remaining in the hydraulic ram 1 with piston 2 jack-up, prevents that piston 2 is collided and damages.The top of described hydraulic ram 1 is provided with auxiliary support structure, after piston 2 reaches the stroke that needs, can avoid piston 2 to cause the sedimentation of beam body in long-time after contraction by auxiliary support structure and piston 2 together support beam bodies.Nut 8 is set on the top of described hydraulic ram 1 forms described auxiliary support structure, the stroke of the length of nut 8 and piston 2 is complementary, nut 8 and hydraulic ram 1 are by being threaded, the auxiliary support structure of forming by nut 8, easy to operate, only need turn nut 8 and get final product to appointed positions, and simple in structure, and cost is low.
Concrete, this jack comprises hydraulic ram 1, is provided with piston 2 in hydraulic ram 1, is provided with tubing interface 3 at hydraulic ram 1 leak free one end, described hydraulic ram 1 is provided with erecting by overhang.Described erecting by overhang can be arranged on hydraulic ram 1 any position, hang for convenience, as preferred mode be: described erecting by overhang is arranged on the top of hydraulic ram 1.Described erecting by overhang can have numerous embodiments, for example, handle, hook or through hole etc. can be set on hydraulic ram 1, as preferred mode be: described erecting by overhang comprises suspension ring 4, suspension ring 4 are connected with hydraulic ram 1 by demountable structure, and this erecting by overhang is simple in structure, and cost is low, and when using jack, can very easily suspension ring 4 be removed, in order to avoid influence the jacking operation.Described demountable structure also can have numerous embodiments, for example, a webge slot can be set on hydraulic ram 1, on suspension ring 4, wedge is set, also can adopt the bigger magnet of a pair of magnetic force to be separately positioned on hydraulic ram 1 and the suspension ring 4, as preferred mode be: described demountable structure comprises screw mandrel 5 and the tapped bore 6 that is arranged on the hydraulic ram 1, screw mandrel 5 is arranged on the suspension ring 4 and is suitable with tapped bore 6, screw mandrel 5 can be screwed in the tapped bore 6, the demountable structure of forming by screw mandrel 5, tapped bore 6, convenient disassembly, simple in structure, cost is lower.The working process of this jack is as follows: when jack being carried on tens meters high scaffolds or the Dun Ding of bridge pier when going up, the screw mandrel 5 that is provided with on the suspension ring 4 is screwed in the tapped bore 6, suspension ring 4 are installed, adopt other accessory appliancess such as rope then, by suspension ring 4 jack is sling, when lifting, can many people operate together, also can adopt the mechanical equipment lifting, raise the efficiency, in the process of slinging, hydraulic oil remaining in the hydraulic ram 1 is with piston 2 jack-up, prevent piston 2 to be collided and damage, be provided with baffle plate 7 at piston 2 tops, have the through hole suitable on the baffle plate 7 with screw mandrel 5, be screwed in the tapped bore 6 baffle plate 7 is fixing behind the screw mandrel 5 insertion through holes, baffle plate 7 can be installed when suspension ring 4 are installed simultaneously, after jack hung appointed positions, with jack be placed on suitable stationkeeping good after, hydraulic oil is injected in the jacks piston 2 jack-up by tubing interface 3, reach the purpose of jacking, after piston 2 reaches the stroke that needs, cause the sedimentation of beam body for fear of piston 2 in long-time after contraction, be provided with auxiliary support structure on the top of hydraulic ram 1.Described auxiliary support structure can adopt numerous embodiments, for example, on the sidewall of hydraulic ram 1, chute is set, be provided with the slide bar suitable in the chute with chute, also be provided with the screens structure in the slide bar termination, also can adopt some pillars, and jack places side by side, as preferred mode is: nut 8 is set on the top of described hydraulic ram 1 forms described auxiliary support structure, the stroke of the length of nut 8 and piston 2 is complementary, nut 8 and hydraulic ram 1 are by being threaded, by the auxiliary support structure that nut 8 is formed, easy to operate, only need turn nut 8 and get final product to appointed positions, and simple in structure, cost is low.
Claims (7)
1. jack comprises hydraulic ram (1), is provided with piston (2) in hydraulic ram (1), is provided with tubing interface (3) at hydraulic ram (1) leak free one end, and it is characterized in that: described hydraulic ram (1) is provided with erecting by overhang.
2. jack as claimed in claim 1 is characterized in that: described erecting by overhang is arranged on the top of hydraulic ram (1).
3. jack as claimed in claim 2 is characterized in that: described erecting by overhang comprises suspension ring (4), and suspension ring (4) are connected with hydraulic ram (1) by demountable structure.
4. jack as claimed in claim 3, it is characterized in that: described demountable structure comprises screw mandrel (5) and is arranged on tapped bore (6) on the hydraulic ram (1), it is last and suitable with tapped bore (6) that screw mandrel (5) is arranged on suspension ring (4), and screw mandrel (5) can be screwed in the tapped bore (6).
5. jack as claimed in claim 4 is characterized in that: described piston (2) top is provided with baffle plate (7), has on the baffle plate (7) and the suitable through hole of screw mandrel (5), is screwed in the tapped bore (6) baffle plate (7) is fixing behind screw mandrel (5) the insertion through hole.
6. according to any described jack of claim in the claim 1 to 5, it is characterized in that: the top of described hydraulic ram (1) is provided with auxiliary support structure.
7. jack as claimed in claim 6, it is characterized in that: on the top of described hydraulic ram (1) nut (8) is set and forms described auxiliary support structure, the stroke of the length of nut (8) and piston (2) is complementary, and nut (8) and hydraulic ram (1) are by being threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201255226U CN202046833U (en) | 2011-04-26 | 2011-04-26 | Lifting jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201255226U CN202046833U (en) | 2011-04-26 | 2011-04-26 | Lifting jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202046833U true CN202046833U (en) | 2011-11-23 |
Family
ID=44987151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201255226U Expired - Fee Related CN202046833U (en) | 2011-04-26 | 2011-04-26 | Lifting jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202046833U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274329A (en) * | 2013-05-29 | 2013-09-04 | 南京工程学院 | Jacking-and-pulling jack and construction method applying jacking-and-pulling jack to pile-anchor support |
| CN108918273A (en) * | 2018-08-23 | 2018-11-30 | 中国五冶集团有限公司 | Anti-float anchor rod anti-pulling test device |
| CN109956396A (en) * | 2019-04-19 | 2019-07-02 | 安徽省矿业机电装备有限责任公司 | Modular bracket hoisting structure |
-
2011
- 2011-04-26 CN CN2011201255226U patent/CN202046833U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274329A (en) * | 2013-05-29 | 2013-09-04 | 南京工程学院 | Jacking-and-pulling jack and construction method applying jacking-and-pulling jack to pile-anchor support |
| CN103274329B (en) * | 2013-05-29 | 2016-03-23 | 南京工程学院 | A kind of top draws jack for the construction method of pile-anchor retaining |
| CN108918273A (en) * | 2018-08-23 | 2018-11-30 | 中国五冶集团有限公司 | Anti-float anchor rod anti-pulling test device |
| CN109956396A (en) * | 2019-04-19 | 2019-07-02 | 安徽省矿业机电装备有限责任公司 | Modular bracket hoisting structure |
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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: 20111123 Termination date: 20150426 |
|
| EXPY | Termination of patent right or utility model |