CN2220462Y - hydraulic double-pump high-speed horizontal jack - Google Patents
hydraulic double-pump high-speed horizontal jack Download PDFInfo
- Publication number
- CN2220462Y CN2220462Y CN 95239499 CN95239499U CN2220462Y CN 2220462 Y CN2220462 Y CN 2220462Y CN 95239499 CN95239499 CN 95239499 CN 95239499 U CN95239499 U CN 95239499U CN 2220462 Y CN2220462 Y CN 2220462Y
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- pump
- oil
- valve
- pressure
- hydraulic
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- Expired - Fee Related
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Abstract
A hydraulic double-pump high-speed horizontal jack belongs to lifting tool, composing of a frame, a hydraulic mechanism equipped on the frame and a crane arm connected with the piston rod of the hydraulic mechanism. A pressure valve and a pair of pump cavities are equipped on a pressure distributor of the hydraulic mechanism. The inner pump cavities are respectively provided with a steel ball for oil absorption valve and the lower part of a pump core, whose upper part connects with the thumb hand linked to the pressure distributor. The lower parts of the pump cavities are respectively communicated with a press oil path and the oil cylinder through the press oil path. The base of the valve cavity of the pressure valve communicates with the press oil path. The middle part of the valve pump communicates with an oil storage cavity through the oil path. The utility model is characterized in that it has fast non-load lifting speed and one fifth of original crank frequency when the crane arm is lifted from the lowest point to the highest, and the auxiliary time for garage is greatly reduced.
Description
The utility model is a kind of hydraulic pressure double pump high-speed horizontal jack, belongs to lifting gear.
Existing horizontal jack is single pump cored structure because it adopts, so when use, in handle upward movement process, because of no pump core, so press oil that crane arm is risen, only press down in the process, could press by the pump core oil crane arm is risen at handle.So when zero load, make crane arm rise to maximum height from minimum altitude needs upper and lower pump fixed handle to reach more than 40 time, thereby has prolonged non-cutting time required when repairing greatly.
Task of the present utility model be to provide a kind of in the moving process of the upper and lower pump of handle all tool pump core press oil and can be rapidly with the hydraulic pressure double pump high-speed horizontal jack crane arm elevate a turnable ladder, that have the double pump cored structure.
Task of the present utility model is finished like this, a kind of hydraulic pressure double pump high-speed horizontal jack, form by frame 31 and a hydraulic gear and piston rod 20 bonded assembly crane arms 34 that are connected on the frame 31 with hydraulic gear, on the pressure distributor 11 of hydraulic gear, be provided with pressure valve 22 and a pair of pump chamber 9,10, pump chamber 9, oil sucting valve steel ball 12 is set respectively in 10,13 and pump core 7,8 bottom, pump core 7,8 top is connected with the hand 27 of pressing on being connected pressure distributor 11, pump chamber 9,10 bottom is respectively by pressing oil circuit 26 and pressing oil circuit 21,17 communicate with oil cylinder 19, pump chamber 9,10 bottom communicates with the total road 14 of oil suction, and the total road 14 of oil suction communicates with oil storage chamber 24; The valve pocket bottom of pressure valve 22 communicates with pressing oil circuit 26, and its middle part is communicated with oil storage chamber 24 by oil circuit 23.
Below in conjunction with accompanying drawing the utility model is further described below.
Fig. 1 is the utility model constructional drawing.
Fig. 2 is the birds-eye view of the utility model Fig. 1.
Fig. 3 is a hydraulic compressor composition of the present utility model.
Fig. 4 is the local figure of overlooking of the utility model Fig. 3.
Fig. 5 is A-A cutaway view of the utility model Fig. 4.
Hydraulic gear of the present utility model by pressure distributor 11, pump core 7,8, press hand 27, safety valve 25, pressure valve 22, Dump valve 35, oil circuit, oil cylinder 19, piston rod 20, oil storage chamber 24 etc. and form.The upper end of pump chamber 9,10 has seal groove, and seal strip 32 and nylon back-up ring 33 are set in it.After seal strip 32 and nylon back-up ring 33 be provided with, the bottom of pump core 7,8 is inserted pump chamber 9,10 respectively, thereby realized the no pump body structure of pump core 7,8.The top of pump core 8 has a pump core key seat 6, is connected the rear end of pressing hand 27 by bearing pin 5, and the top of pump core 7 is connected with the front end of pressing hand 27 by bearing pin 4, and the middle part of pressing hand 27 is connected with boss 2 on the pressure distributor 11 by bearing pin 3 and forms revolute pair.
Pressure oil circuit 17 of the present utility model is provided with semicolumn nylon body 18, will press oil circuit 17 to become semicolumn by semicolumn nylon body 18 and press oil circuit, and press oil circuit 21 and the check valve steel ball of locating with one voice 16 of pressing oil circuit 17 to define action radius for being located at.Overcome because pump core 8 is pressed the defective of oily weak effect to oil cylinder 19 than length from the pressure oil oil circuit of oil cylinder 19, after pump chamber 10 oil suctions, by pressing oil circuit 21 that oil pressure is crossed check valve steel ball 16, make oil enter oil cylinder 19 fast through the oily oil circuit 17 of the pressure of semicolumn again, thereby rapidly piston rod 20 is released.
Hydraulic gear of the present utility model is connected with frame 31 by its rear axle 38, and the front end of piston rod 20 is connected with crane arm 34 by bearing pin 39.Pressure valve 22 of the present utility model is located at the front end of pump core 7, during the pressore setting of the pressure overpressure valve 22 that touches when piston rod 20, then after pump chamber 9 oil suctions, owing to closing of the check valve steel ball 15 that is located at pressure oil circuit 26 ends, thereby low pressure oil is returned into oil storage chamber 24 by pressure valve 22 and through oil circuit 23.The effect that is located on the pressure distributor 11 of hydraulic gear near the safety valve 25 at pump core 8 places is, when piston rod 20 stressed exceeded the pressore setting of safety valve 25, the high pressure oil of pump chamber 10 was because closing of check valve steel ball 16 and enter oil circuit by safety valve 25 and go into the total road 14 of oil suction for 28,29 go back tos.The effect that is located at the Dump valve 35 on the pressure distributor 11 is, when the piston rod 20 after will making release is replied, as long as Dump valve 35 is unscrewed, at this moment, the pressure oil in the oil cylinder 19 just rapidly the oil circuit through communicating 30 with oil cylinder 19 be located at the check valve steel ball 36 of Dump valve 35 bottoms, flow directly into oil storage chamber 24 through oil circuit 37 again.
When using the utility model, as long as handle 1 inserted presses hand 27, grasp handle 1 it is pressed down, make it around bearing pin 3 left-hand revolutions, handle 1 is depressed pump core 8 by bearing pin 5, and the pressure oil in the pump chamber 10 pressed unidirectional steel ball valve 16 to enter oil cylinder 19 through pressing oil circuit 17 through pressing oil circuit 21.This moment, pump core 7 was lifted on just in time, pump chamber 9 forms negative pressure and makes it from the total road 14 of oil suction through 12 oil suctions of oil sucting valve steel ball, when handle 1 is pressed when making pump core 7 be in first dead center, act on handle 1 and to press hand 27 and make it make clickwise around bearing pin 3, pump core 7 presses down, and oil sucting valve steel ball 12 cuts out, and the pressure oil of pump chamber 9 is pressed into oil cylinder 19 through check valve steel ball 15, piston rod 20 is extrapolated, and connected crane arm 34 is rotated and lifting around bolster 40.When pump core 7 presses down, pump core 8 rises, pump chamber 10 forms negative pressure and makes it from the total road 14 of oil suction through 13 oil suctions of oil sucting valve steel ball, oil after the suction enters oil cylinder 19 through pressing oil circuit 21,17, make piston rod 20 to extrapolation, move in circles according to this, realize continuously to oil cylinder 19 fuel feeding, until crane arm 34 being lifted to most significant end by piston rod 20.
The utility model is owing to adopted said structure, improved the ascending velocity of crane arm 34 when zero load, crane arm 34 only is 1/5th of former horizontal jack pump fixed handle number of times from the number of times that least significant end rises to the required pump fixed handle of most significant end, thereby has shortened non-cutting time required when repairing greatly.
Claims (3)
1, a kind of hydraulic pressure double pump high-speed horizontal jack, form by frame (31) and a hydraulic gear and piston rod (a 20) bonded assembly crane arm (34) that is connected on the frame (31) with hydraulic gear, it is characterized in that being provided with on the pressure distributor (11) at hydraulic gear pressure valve (22) and a pair of pump chamber (9), (10), pump chamber (9), oil sucting valve steel ball (12) is set respectively (10), (13) and pump core (7), (8) bottom, pump core (7), (8) top is connected with the hand (27) of pressing on being connected pressure distributor (11), pump chamber (9), (10) bottom is respectively by pressing oil circuit (26) and pressing oil circuit (21), (17) communicate with oil cylinder (19), pump chamber (9), (10) bottom communicates with the total road of oil suction (14), and the total road of oil suction (14) communicates with oil storage chamber (24); The valve pocket bottom of pressure valve (22) communicates with pressing oil circuit (26), and its middle part is communicated with oil storage chamber (24) by oil circuit (23).
2, hydraulic pressure double pump high-speed horizontal jack according to claim 1 is characterized in that the upper end of pump chamber (9), (10) has seal groove, and seal strip (32) and nylon back-up ring (33) are set in it.
3, hydraulic pressure double pump high-speed horizontal jack according to claim 1 is characterized in that pressing oil circuit (17) to be provided with semicolumn nylon body (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95239499 CN2220462Y (en) | 1995-03-28 | 1995-03-28 | hydraulic double-pump high-speed horizontal jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95239499 CN2220462Y (en) | 1995-03-28 | 1995-03-28 | hydraulic double-pump high-speed horizontal jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2220462Y true CN2220462Y (en) | 1996-02-21 |
Family
ID=33881266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95239499 Expired - Fee Related CN2220462Y (en) | 1995-03-28 | 1995-03-28 | hydraulic double-pump high-speed horizontal jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2220462Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338330A (en) * | 2016-10-31 | 2017-01-18 | 中冶华天南京工程技术有限公司 | Injecting and blowing tank weighing and calibrating system |
| CN109969981A (en) * | 2019-04-03 | 2019-07-05 | 青岛科技大学 | A kind of novel dual-speed hydraulic lifting machine |
-
1995
- 1995-03-28 CN CN 95239499 patent/CN2220462Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338330A (en) * | 2016-10-31 | 2017-01-18 | 中冶华天南京工程技术有限公司 | Injecting and blowing tank weighing and calibrating system |
| CN109969981A (en) * | 2019-04-03 | 2019-07-05 | 青岛科技大学 | A kind of novel dual-speed hydraulic lifting machine |
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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 |