CN1286708C - Pneumati-hydraulic automatic jack - Google Patents
Pneumati-hydraulic automatic jack Download PDFInfo
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- CN1286708C CN1286708C CN 200410008307 CN200410008307A CN1286708C CN 1286708 C CN1286708 C CN 1286708C CN 200410008307 CN200410008307 CN 200410008307 CN 200410008307 A CN200410008307 A CN 200410008307A CN 1286708 C CN1286708 C CN 1286708C
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Abstract
The present invention relates to a pneumatic hydraulic automatic jack which comprises a hydraulic jack and a pneumatic oil pump device, wherein an oil outlet of an oil pressure cylinder in the pneumatic oil pump device is connected with an oil inlet of the hydraulic jack; the pneumatic oil pump device is provided with an automatic cycle mechanism; the automatic cycle mechanism comprises a movable valve capable of blocking an air inlet channel, wherein the movable valve is arranged at the air inlet channel of an air cylinder; the movable valve is fixedly connected with a movable valve spring; a switch piston rod is arranged in front of the movable valve of the air inlet channel; the bottom part of the switch piston rod is arranged in a switch air cylinder and is fixedly connected with a switch piston; the switch piston is fixedly connected with a reset spring, and a limiting ball which is pushed by a ball spring is arranged on the reset spring; the limiting ball is arranged in a ball chute; one end of the ball spring is pushed at the ball chute, and the other end is pushed at the limiting ball; the bottom part of the switch air cylinder is communicated with the bottom part of the air cylinder by an air return channel. The present invention has the advantages of simple operation, high efficiency, small volume, light weight, portability and low cost, and an air pump can be continuously input with compressed gas until an object is lifted.
Description
Technical field
The present invention relates to a kind of jack, the automatic jack of especially a kind of Pneumatic Liquid pressure type.
Background technology
The Pneumatic hydraulic jack is imported pressure gas with air pump when inflation, the piston that promotes in the cylinder is gone into hydraulic actuating cylinder with the oil pressure of hydraulic jack, promotes jack then and lifts object.Pneumatic hydraulic jack as number of patent application CN89220468 announcement, when air pump input high pressure gas, can not import continuously, after the input pressure gas promotes piston, need stop input earlier,, pressure gas be transferred to other places by the electromagnetic valve commutation, after making the piston homing by the effect of return spring, recover the input pressure gas again, and so forth, until lifting object.So use such jack, complicated operation, efficient is low.In addition, jack structure complexity, cost height, heaviness, be not easy to carry.
Summary of the invention
The present invention will solve the defective of above-mentioned prior art, and a kind of automatic jack of Pneumatic Liquid pressure type of tool automatic circulation mechanism is provided, so that jack can be imported when the input pressure gas continuously.
The present invention solves the technical scheme that its technical matters adopts.The automatic jack of this Pneumatic Liquid pressure type, comprise hydraulic jack, give the pneumatic oil pumping device of hydraulic pressure jack pump oil, wherein pneumatic oil pumping device is placed the piston rod of pump oil in the compressing cylinder by cylinder, compressing cylinder, the piston rod that places the piston in the cylinder, front end, the compressing cylinder oil outlet is connected with the oil inlet of hydraulic jack, pneumatic oil pumping device also is provided with automatic circulation mechanism, this automatic circulation mechanism comprises the moving valve of the stopped up inlet channel of being located at inlet cylinder, and this moving valve is connected with the moving valve spring; Described inlet channel is provided with the switching piston bar that can make the inlet channel break-make before moving valve, this switching piston bar bottom places switches in the cylinder and affixed switching piston, this switching piston is connected with retracing spring, and the top of switching piston is provided with the spacing ball that is withstood by ball spring, this spacing ball is located in the ball spout, ball spring one end peaks at ball spout, and the other end peaks at spacing ball; Switching cylinder bottom communicates by the return-air road with cylinder bottom; The switching piston bar has can be with the transverse air channel of this switching piston bar side inlet conducting, and this switching piston bar also has vertical air flue, and these vertical air flue two ends are towards moving valve place one side opening; When inflating to jack, pressure gas promotes described moving valve and seals deflation hole, opens inlet channel simultaneously.
The effect that the present invention is useful is: the present invention is simple to operate, and efficient height, air pump can be imported pressure gas continuously until lifting object, and volume is little, in light weight, be easy to carry about with one, cost is low.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structure for amplifying scheme drawing of automatic circulation mechanism of the present invention;
1-inlet channel, 2-ball spring, 3-spacing ball, 4-retracing spring, 5-switching piston bar, 6-moving valve, 7-deflation hole, 8-moving valve spring, 9-switch, 10-upper piston, 11-cone-shaped spring, 12-air inlet pipe, 13-lower piston, 14-compressing cylinder, 15-compressing cylinder oil outlet, 16-compressing cylinder oil inlet, 17-hydraulic actuating cylinder oil inlet, 18-lifting piston, 19-hydraulic actuating cylinder oil outlet, 20-oil drain hole, 21-pouring orifice, 22-sealing member, 23-circular slide way, 24-muffler rolled, 25-cylinder, 26-oil cylinder, 27-hydraulic actuating cylinder, 28-piston rod, 29-switching cylinder, 30-switching piston, 31-dividing plate, 32-transverse air channel, 33-vertically air flues, 34-air bleed hole.
The specific embodiment
The invention will be described further below in conjunction with accompanying drawing:
The automatic jack of this Pneumatic Liquid pressure type, comprise hydraulic jack, give the pneumatic oil pumping device of hydraulic pressure jack pump oil, wherein pneumatic oil pumping device by cylinder 25, compressing cylinder 14, place piston rod, the front end of the piston in the cylinder 25 to place the piston rod 28 of pump oil in the compressing cylinder 14, compressing cylinder oil outlet 15 is connected with the hydraulic actuating cylinder oil inlet 17 of hydraulic jack, pneumatic oil pumping device also is provided with automatic circulation mechanism, this automatic circulation mechanism comprises the moving valve 6 of the stopped up inlet channel 1 of being located at inlet cylinder 1, and this moving valve 6 is connected with moving valve spring 8; Described inlet channel 1 is provided with the switching piston bar 5 that can make inlet channel 1 break-make before moving valve 6, have through hole on the switching piston bar 5, and when switching piston bar 5 in a state of nature the time, gas can pass through in through hole.These switching piston bar 5 bottoms place switches in the cylinder 29 and affixed switching piston 30, this switching piston 30 is connected with retracing spring 4, and the top of switching piston 25 is provided with the spacing ball 3 that is withstood by ball spring 2, this spacing ball 3 is located in the ball spout 23, ball spring 2 one ends peak at ball spout 23, and the other end peaks at spacing ball 3; Switching cylinder 29 bottoms communicates by return-air road 24 with cylinder 25 bottoms.Described switching piston bar 5 has can be with the transverse air channel 32 of this switching piston bar 5 side inlets 1 conducting, and this switching piston bar 5 also has vertical air flue 33, and these vertical air flue 33 two ends are towards moving valve 6 places one side opening.Switching piston bar 5 is in position the time, and transverse air channel 32 just in time is positioned at air passage 1, with both sides air passage conducting.After switching piston bar 5 was pushed upwardly, vertically air flue 33 1 end openings were over against inlet channel 1, and other end opening is exposed to outside the jack, and like this, the anticyclonic pressure between switching piston bar 5 and the moving valve 6 just can be from vertical air flue 33 rows to the external world.When upper piston 10 is shifted the end onto, the gas in the upper cylinder enters muffler 24, switch cylinder 29 inflations promote switching piston bars 5 upwards block inlet channel 1 and bleed off switching piston bar 5 and moving valve 6 between air pressure.Ball spring 2 withstands spacing ball 3, makes switching piston 30 that resistance be arranged, and could promote switching piston 30 to certain air pressure, and one shift the end onto, and fluted on the switching piston 30, spacing ball 3 rolls when groove, prevent that switching piston 30 from deflecting, to guarantee that vertical air flue 33 is over against inlet channel 1.
Cylinder 25 is divided into upper cylinder and lower cylinder by dividing plate 31, in the casing top half bottom air bleed hole 34 is set, be respectively equipped with upper piston 10, the lower piston 13 affixed in upper cylinder, the lower cylinder, be respectively equipped with cone-shaped spring 11 between upper and lower piston and the upper and lower cylinder with piston rod 28; Cone-shaped spring can one be pressed onto the end.The upper cylinder top communicates by air inlet pipe 12 with the lower cylinder top, and this air inlet pipe 1 is provided with switch 9.Press switch 9, upper and lower cylinder is communicated with, and upper and lower cylinder is all worked during inflation, pull-up switch 9, blocking-up air inlet pipe 12, when upper cylinder was worked, the lower cylinder air communicated by the switch 9 and the external world, make it not produce resistance, empty wagons is with a cylinder, and loaded vehicle is with two cylinders.But save compressed gas like this.
Hydraulic jack comprises the lifting piston 18 that places in the hydraulic actuating cylinder 27, and this hydraulic actuating cylinder 27 places in the oil cylinder 26; Hydraulic actuating cylinder oil inlet 17 is provided with the check valve of only import but no export and is connected with compressing cylinder oil outlet 15, and hydraulic actuating cylinder oil outlet 19 is provided with the check valve of only export but no import and is connected with oil cylinder 26, and compressing cylinder oil inlet 16 is provided with the check valve of only import but no export and is connected with oil cylinder 26.
When using jack, inflate to jack, pressure gas by the transverse air channel 32 on the switching piston bar 5, arrives moving valve 6 through inlet channel 1, and promotion moving valve 6 is sealed deflation hole 7, open inlet channel 1 simultaneously, pressure gas enters cylinder and promotes upper piston 10, lower piston 13, thereby promotes piston rod 28, and oil pressure is gone into hydraulic actuating cylinder 27, lifting piston 18 rises, and lifts object.When upper piston when pressing down, gas is discharged from air bleed hole 34; When upper piston 10 is pressed onto the end, the gas of upper cylinder enters muffler 24, switch cylinder 29 inflations, promote switching piston bar 5, transverse air channel 32 up moves thereupon, not conducting of side inlet, and vertically air flue one end opening is over against inlet channel, and other end opening is exposed to outside the jack, and the anticyclonic pressure that switching piston bar 5 and moving valve are 6 is arranged to the external world by vertical air flue 33, at this moment moving valve 6 following air pressure are greater than top air pressure, moving valve spring 8 and pressure gas promote moving valve 6 together and up move, and open deflation hole 7, bleed off gas, upper piston 10, lower piston 13 upward movement under the elastic force effect of cone-shaped spring 11 sets back, and discharges gas from deflation hole 7.At this moment, piston rod 28 rises, the oil of oil cylinder 26 through compressing cylinder oil inlet 16 fine pressure oil cylinders.In the process of upper piston 10 returns, when the position that upper piston 10 rises is higher than muffler 24, the Pneumatic pipe cleaner that switches cylinder 29 is crossed muffler 24 discharges, switching piston 30 pressure disappear, and retracing spring is switching piston 30 pop into position, and a working cycle is finished, begin lower whorl work again, if air pressure is not enough, just do not work, up to air pump air pressure is increased to can promote switching piston 30 till.
Oil drain hole 20 can bleed off the oil of oil cylinder 26, and can oiling in oil cylinder 26 from pouring orifice 21.All be provided with sealing member 22 in some necessary positions.
Claims (3)
1, the automatic jack of a kind of Pneumatic Liquid pressure type, comprise hydraulic jack, give the pneumatic oil pumping device of hydraulic pressure jack pump oil, wherein pneumatic oil pumping device is by cylinder (25), compressing cylinder (14), place the piston in the cylinder (25), front end places the interior pump oil of compressing cylinder (14) and places the piston rod (28) of the piston in the cylinder (25), compressing cylinder oil outlet (15) is connected with the oil inlet (17) of hydraulic jack, it is characterized in that: 1), pneumatic oil pumping device also is provided with automatic circulation mechanism, this automatic circulation mechanism comprises the moving valve (6) of the stopped up inlet channel of being located at inlet cylinder (1), and this moving valve (6) is connected with moving valve spring (8); Described inlet channel (1) is provided with the switching piston bar (5) that can make the inlet channel break-make before moving valve, this switching piston bar (5) bottom places switches in the cylinder (29) and affixed switching piston (30), this switching piston (30) is connected with retracing spring (4), and the top of switching piston (30) is provided with the spacing ball (3) that is withstood by ball spring (2), this spacing ball (3) is located in the ball spout (23), ball spring (2) one ends peak at ball spout (23), and the other end peaks at spacing ball (3); Switching cylinder (29) bottom communicates by return-air road (24) with cylinder (25) bottom;
2), switching piston bar (5) has can be with the transverse air channel (32) of this switching piston bar (5) side inlet (1) conducting, this switching piston bar (5) also has vertical air flue (33), these vertical air flue (33) two ends are towards moving valve (6) place one side opening;
3), when inflating to jack, pressure gas promotes described moving valve (6) and seals deflation hole (7), opens inlet channel (1) simultaneously.
2, the automatic jack of Pneumatic Liquid pressure type according to claim 1, it is characterized in that: described cylinder (25) is divided into upper cylinder and lower cylinder by dividing plate (31), in the casing top half bottom air bleed hole (34) is set, be respectively equipped with in upper cylinder, the lower cylinder and affixed upper piston (10), the lower piston (13) of piston rod (28), be respectively equipped with cone-shaped spring (11) between upper and lower piston and the upper and lower cylinder; The upper cylinder top communicates by inlet channel (12) with the lower cylinder top, and this inlet channel (12) is provided with switch (9).
3, the automatic jack of Pneumatic Liquid pressure type according to claim 1 is characterized in that: described hydraulic jack comprises the lifting piston (18) that places in the hydraulic actuating cylinder (27), and this hydraulic actuating cylinder (27) places in the oil cylinder (26); Hydraulic actuating cylinder oil inlet (17) is provided with the check valve of only import but no export and is connected with compressing cylinder oil outlet (15), hydraulic actuating cylinder oil outlet (19) is provided with the check valve of only export but no import and is connected with oil cylinder (26), and compressing cylinder oil inlet (16) is provided with the check valve of only import but no export and is connected with oil cylinder (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410008307 CN1286708C (en) | 2004-02-24 | 2004-02-24 | Pneumati-hydraulic automatic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410008307 CN1286708C (en) | 2004-02-24 | 2004-02-24 | Pneumati-hydraulic automatic jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1559877A CN1559877A (en) | 2005-01-05 |
| CN1286708C true CN1286708C (en) | 2006-11-29 |
Family
ID=34439920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410008307 Expired - Fee Related CN1286708C (en) | 2004-02-24 | 2004-02-24 | Pneumati-hydraulic automatic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1286708C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616697B (en) * | 2012-04-28 | 2014-04-23 | 常熟通润汽车零部件股份有限公司 | Oil jack with pneumatic pump |
| CN103395715B (en) * | 2013-06-24 | 2015-09-02 | 无锡商业职业技术学院 | Pneumahydraulic jack |
| CN111634267A (en) * | 2020-06-02 | 2020-09-08 | 浙江大学 | Pneumatic multi-wheel synchronous lifting device and method thereof |
-
2004
- 2004-02-24 CN CN 200410008307 patent/CN1286708C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1559877A (en) | 2005-01-05 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20061129 Termination date: 20100224 |