CN2310759Y - Sleeve double-plunger hydraulic jack - Google Patents
Sleeve double-plunger hydraulic jack Download PDFInfo
- Publication number
- CN2310759Y CN2310759Y CN 97226430 CN97226430U CN2310759Y CN 2310759 Y CN2310759 Y CN 2310759Y CN 97226430 CN97226430 CN 97226430 CN 97226430 U CN97226430 U CN 97226430U CN 2310759 Y CN2310759 Y CN 2310759Y
- Authority
- CN
- China
- Prior art keywords
- sleeve
- pump
- hydraulic jack
- plunger
- base
- 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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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to a new sleeve double-plunger hydraulic jack whose structure is improved on the foundation of the original public-known hydraulic jack. The utility model adopts a push rod, a sleeve, an oil cylinder and an outer sleeve which are orderly sheathed to form a multi-stage sleeve push-rise mechanism in order to improve the push-rise height. A pump pressure mechanism is composed of two plunger pumps mutually connected. The two plunger pumps form an operating rod of hinge pump oil in a parallelogram by a connecting rod and a handle. One pump works no matter the handle is upward lifted or downward pressed and thus the work efficiency of the jack is doubled. Meanwhile, the utility model still keeps the advantages of simple structure, convenient operation and convenient carry of the original common jack.
Description
This practicality newly relates to a kind of new hydraulic lifting machinery, and it can increase top lifting height and improve jacking speed.
At present, known hydraulic jack all adopts the single-stage oil cylinder, and its top lifting height has limited the elevate a turnable ladder height less than the system height of self.And having only a cover plunger pump, handle presses down Shi Caineng makes push rod rise inefficiency.
The purpose of this utility model provides a kind of novel hydraulic jack, and it promptly keeps, and original jack structure is simple, use, advantage easy to carry, doubles again to increase work efficiency and top lifting height simultaneously.
The purpose of this utility model is achieved in that sleeve-type double plunger hydraulic jack is on the basis of original known hydraulic jack, improves its structure.It includes lifting body, pump pressure mechanism and valve and oil circuit.Lifting body, pump pressure mechanism are fixed on the base, be communicated with by oil circuit between pump pressure mechanism and the lifting body, and form multistage sleeve lifting body by push rod, sleeve, oil cylinder and outer sleeve fit successively, pump pressure mechanism is made up of two plunger pump doubly-linkeds, and two plungers constitute a parallelogram hinge pump oil joystick by connecting rod and handle respectively.No matter carry or press down on the handle pump work done is arranged all the time, double the work efficiency of jack thus.And lifting body adopts multistage sleeve, thereby has improved top lifting height greatly.
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is machine construction principle figure of the present utility model.
Among the figure 1, gland 2, outer sleeve 3, oil cylinder 4, sleeve 5, push rod 6, base 7, the screw 8 of draining the oil, fuel-return valve 9, elastic spring 10, check valve 11, plunger cylinder 12, plunger (first) 13, plunger (second) 14, connecting rod 15, handle
In the accompanying drawings, push rod (5) is inserted in the oil cylinder (3) of packing into behind the sleeve, and is fixed on the base by gland (1) by oil cylinder bottom thread and base (6) close-coupled, outer sleeve (2), when handle pressed down, the pressure oil that plunger pump produces backed down check valve (10) and enters jacking cylinder.Become to making push rod to rise, when push rod rises to a limitation height, improved top lifting height greatly thereby push rod lower end boss drive sleeve continues rising step by step.
Pump pressure mechanism is made up of two plunger pumps and is fixed on base (6) goes up, is fixed on outer sleeve (2) wall by link to each other with handle (15) the oily joystick of parallelogram hinge pump of formation, its hinged support point of the two pairs of connecting rods (14) on two plungers.When handle is up carried, plunger (first) is to the pump work done, when pressing down, plunger (second) is to the pump work done.In the process that pumps of handle, there is a pump in running order all the time like this, thereby jacking speed is doubled.
Fuel-return valve on the jacking cylinder (8), check valve on plunger pump oil cylinder and the jacking cylinder (10) all is arranged on the base (6), and is communicated with, constitutes fluid control by the oil circuit on the base (6) with plunger pump oil cylinder (11), (12) jacking cylinder (3), outer sleeve (2).Check valve (10), be used to control the switching of oil circuit between plunger cylinder (11) and the jacking cylinder (3).Another fuel-return valve (8) on the base is used to control the lifting of push rod (5).During work, tighten the screw of draining the oil (7) on the fuel-return valve, promptly close drainback passage, by handle pump oil, push rod rises and lifts weight.When weight was descended, as long as unclamp the screw of draining the oil (7), fuel-return valve is opened, pressure oil flowed to the outer sleeve inner chamber, and push rod is by deadweight decline.
Claims (4)
1, a kind of sleeve-type double plunger hydraulic jack includes lifting body, pump pressure mechanism and valve and oil circuit, lifting body, pump pressure mechanism are fixed on the base, be communicated with by oil circuit between pump pressure mechanism and the lifting body, it is characterized in that forming multistage sleeve lifting body by push rod, sleeve, oil cylinder and outer sleeve fit successively, pump pressure mechanism is made up of two plunger pump doubly-linkeds.
2, sleeve-type double plunger hydraulic jack according to claim 1, it is characterized in that jacking cylinder by bottom thread closely link to each other with base, outer sleeve is fixed on the base by gland.
3, sleeve-type double plunger hydraulic jack according to claim 1, it is characterized in that being linked to each other with handle by two pairs of connecting rods on two plungers constitutes parallelogram hinge pump oil joystick, and its hinged support point is fixed on the outer sleeve wall.
4, sleeve-type double plunger hydraulic jack according to claim 1, it is characterized in that the check valve on fuel-return valve, plunger pump oil cylinder and the jacking cylinder on the jacking cylinder all is arranged on the base, be communicated with plunger pump oil cylinder, jacking cylinder, outer sleeve by the oil circuit that is arranged on the base, constitute hydraulic control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97226430 CN2310759Y (en) | 1997-09-05 | 1997-09-05 | Sleeve double-plunger hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97226430 CN2310759Y (en) | 1997-09-05 | 1997-09-05 | Sleeve double-plunger hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2310759Y true CN2310759Y (en) | 1999-03-17 |
Family
ID=33940170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97226430 Expired - Fee Related CN2310759Y (en) | 1997-09-05 | 1997-09-05 | Sleeve double-plunger hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2310759Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104229668A (en) * | 2014-10-06 | 2014-12-24 | 苏州蓝王机床工具科技有限公司 | Hydraulic jack |
| CN105480891A (en) * | 2015-12-30 | 2016-04-13 | 李陶胜 | Double-cylinder hydraulic jack for vehicles |
| CN110304575A (en) * | 2019-07-15 | 2019-10-08 | 钱海燕 | A kind of lifting device |
| CN111071965A (en) * | 2019-12-01 | 2020-04-28 | 王磊 | Lifting equipment applied to auxiliary power line erection |
-
1997
- 1997-09-05 CN CN 97226430 patent/CN2310759Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104229668A (en) * | 2014-10-06 | 2014-12-24 | 苏州蓝王机床工具科技有限公司 | Hydraulic jack |
| CN105480891A (en) * | 2015-12-30 | 2016-04-13 | 李陶胜 | Double-cylinder hydraulic jack for vehicles |
| CN110304575A (en) * | 2019-07-15 | 2019-10-08 | 钱海燕 | A kind of lifting device |
| CN111071965A (en) * | 2019-12-01 | 2020-04-28 | 王磊 | Lifting equipment applied to auxiliary power line erection |
| CN111071965B (en) * | 2019-12-01 | 2021-12-17 | 江苏省送变电有限公司 | Lifting equipment applied to auxiliary power line erection |
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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 |