CN2331648Y - Horizontal oil jack once lifting to top device with shortening banking time - Google Patents
Horizontal oil jack once lifting to top device with shortening banking time Download PDFInfo
- Publication number
- CN2331648Y CN2331648Y CN 98227135 CN98227135U CN2331648Y CN 2331648 Y CN2331648 Y CN 2331648Y CN 98227135 CN98227135 CN 98227135 CN 98227135 U CN98227135 U CN 98227135U CN 2331648 Y CN2331648 Y CN 2331648Y
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- oil
- piston rod
- line
- jack
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Abstract
The utility model discloses a horizontal type lifting to top device with empty travel of an oil pressure jack. The utility model belongs to a lifting tool and is composed of a manual oil pump, an oil cylinder, an outer sleeve, a top cap, a bottom base, an oil return valve, a main piston rod arranged in the oil cylinder, etc., wherein, the inner part of the main piston rod is provided with a small piston rod which is a hollow pipe with an oil path; one end of the main piston rod is arranged on the bottom base by a screw sleeve; a small oil chamber with empty travel is arranged between the main piston rod and the small piston rod and is communicated with the oil path. The bottom base is respectively provided with a main oil inlet path, a small oil inlet path, a main oil return path, a small oil return path, a big oil return path, a work oil inlet path and an oil path for oil supply. The utility model can effectively shorten the empty travel time before a support plate contacts with the load and improve the work efficiency.
Description
The utility model relates to a kind of horizontal oil jack idle travel one pump and gives rise to ejection device, belongs to lifting gear.
Existing horizontal oil jack, with its top thing the time, need operation through several times, just can make the pallet on the crane arm contact and enter real lifting load with load, this section stroke people contact pallet with load before claims idle travel, and the interior operation of idle travel is operated idle travel, carry out the idle travel action need regular hour several times, and idle travel lifting speed is extremely slow, and operational motion is many, thereby has influenced the work efficiency of jack.
The purpose of this utility model be to provide a kind of and can shorten the empty stroke time of pallet before contacting with load effectively, horizontal oil jack idle travel one pump of increasing work efficiency gives rise to ejection device.
The purpose of this utility model is achieved like this, a kind of horizontal oil jack idle travel one pump gives rise to ejection device, it is by hand oil pump 4, oil cylinder 39, overcoat 38, top cap 37, base 8, fuel-return valve 20 and be located at main piston rod 9 in the oil cylinder 39 etc. and form, be provided with a small piston rod 10 in the described main piston rod 9, small piston rod 10 is hollow tubulars of a band oil duct 11, and the one end is installed on the base 8 by swivel nut 24; Be a null small oil cavity 28 between described main piston rod 9 and the small piston rod 10, communicate with oil duct 11; Offer a total in-line 6 on the described base 8 respectively, one little in-line 7, one total oil return line 21, one little oil return line 22, one big oil return line 19, one work in-line 3, one repairing oil circuit 16, total in-line 6 and hand oil pump 4 following oil pump chambeies 1 communicate, little in-line 7 and total in-line 6, oil duct 11 communicates, steel ball 18 is set in it, total oil return line 21 communicates with the oil storage chamber 12 of jack, little oil return line 22 and total oil return line 21, oil duct 11 communicates, big oil return line 19 and total oil return line 21, the working oil chamber 14 of jack communicates, steel ball 30 is set in it, stage clip 29, work in-line 3 and total in-line 6, the working oil chamber 14 of jack communicates, steel ball 5 is set in it, stage clip 2, the working oil chamber 14 of repairing oil circuit 16 and jack, oil storage chamber 12 communicates, and steel ball 17 is set in it.
Below in conjunction with accompanying drawing the utility model is further described below.
Fig. 1 is the annexation figure between hand oil pump 4 of the present utility model, total in-line 6, little in-line 7 and the work in-line 3.
Fig. 2 is a structure principle chart of the present utility model.
Fig. 3 is between big oil return line 19 of the present utility model and working oil chamber 14, the total oil return line 21 and little oil return line 22 and oil duct 11, the total annexation figure between the oil return line 21.
Fig. 4 cooperates the working state figure of horizontal oil jack for the utility model.
Offer cavity in the main piston rod 9 of the present utility model, be placed with small piston rod 10 in it, small piston rod 10 is hollow tubulars of band oil duct 11, be fixed on the base 8 after one end and swivel nut 24 welding, between base 8 and swivel nut 24 sealing member 23 is set, the effect of sealing member 23 is to guarantee that hydraulic oil and working oil chamber 14 in the oil duct 11 are isolated.Orienting sleeve 15 of the present utility model is fixed in the main piston rod 9, between orienting sleeve 15 and main piston rod 9 sealing member 13 is set, and sealing member 13 seals when main piston rod 9 and small piston rod 10 carry out slide relative.
The utility model offers spacing hole 27, offers draining hole 26 in the inside of orienting sleeve 15, offers draining hole 25 in the inside of main piston rod 9 in the top ends of small piston rod 10.The effect in spacing hole 27, draining hole 26,25 is ranges of control main piston rod 9, promptly after idle travel finishes, jack bears a heavy burden when being lifted to the extreme higher position, in order to prevent that main piston rod 9 is drawn out outside the oil cylinder 39, when spacing hole 27 is positioned at the same side of sealing member 13 with draining hole 26,25, hydraulic oil in oil duct 11 and the null small oil cavity 28 is just flowed through draining hole 26 in the orienting sleeve 15 and the draining holes 25 in the main piston rod 9 by the spacing hole 27 of small piston rod 10 top ends and is entered in the working oil chamber 14, to guarantee that main piston rod 9 is no longer to outer displacement.
One end of oil cylinder 39 of the present utility model, overcoat 38 is installed on the base 8, and the other end and top cap 37 are fixing.Cavity between oil cylinder 39 and the overcoat 38 is the oil storage chamber 12 of jack, and the cavity between the left end of oil cylinder 39 and the main piston rod 9 is the working oil chamber 14 of jack.
The bar head 36 of main piston rod 9 of the present utility model is contained in the endoporus of oil jack contiguous block 32, and middle plant spring cotter 40, contiguous block 32 are enclosed within the endoporus of pull bar 31, and pull bar 31 can drive crane arm 34 and do the lifting campaign.
Total in-line 6 of the present utility model, little in-line 7, total oil return line 21, little oil return line 22, big oil return line 19, work in-line 3, repairing oil circuit 16 all are opened on the base 8.One end of total in-line 6 is communicated with oil pump chamber 1, and the other end is communicated with little in-line 7; One end of little in-line 7 is communicated with total in-line 6, and the other end communicates with oil duct 11, the null small oil cavity 28 of small piston rod 10 respectively, and steel ball 18 is set on the boss of little in-line 7; One end of total oil return line 21 communicates with big oil return line 19, little oil return line 22 respectively, and the other end communicates with the oil storage chamber 12 of jack, and controls the Push And Release of total oil return line 21 by being located at fuel-return valve 20 on the base 8; One end of little oil return line 22 communicates with total oil return line 21, and the other end communicates with oil duct 11; One end of big oil return line 19 communicates with total oil return line 21, and the other end communicates with the working oil chamber 14 of jack, on the boss of big oil return line 19 steel ball 30, stage clip 29 is set; One end of work in-line 3 communicates with total in-line 6, and the other end communicates with the working oil chamber 14 of jack, on the boss of work in-line 3 steel ball 5, stage clip 2 is set; One end of repairing oil circuit 16 communicates with the working oil chamber 14 of jack, and the other end communicates with the oil storage chamber 12 of jack, and steel ball 17 is set on the boss of repairing oil circuit 16.
When using the utility model, at first close fuel-return valve 20, the handle 35 of pressing oil jack then, hand oil pump 4 is moved down to be sent into the hydraulic oil in the oil pump chamber 1 in total in-line 6, at this moment hydraulic oil is through total in-line 6, little in-line 7, enter in the oil duct 11 after backing down the steel ball 18 on the little in-line 7 then, and then enter in the null small oil cavity 28, outwards move with stroke and the speed that is several times as much as oil pump core 4 thereby promote main piston rod 9, pass through contiguous block 32 by main piston rod 9 this moment, pull bar 31 drives crane arm 34 and places the pallet 33 on the crane arm 34 to rise to the load place rapidly.In whole idle travel lifting process, hydraulic oil in the oil storage chamber 12 ceaselessly backs down steel ball 17 through repairing oil circuit 16 and enters in the working oil chamber 14, to guarantee being full of hydraulic oil in the working oil chamber 14, by sealing member 23 hydraulic oil and working oil chamber 14 in the oil duct 11 are kept apart simultaneously.After idle travel is eliminated, be that the pallet of oil jack is with after load contacts, because the pressure wink that load produced is promptly by pallet 33, crane arm 34, pull bar 31, contiguous block 32 is delivered on the main piston rod 9, continue this moment oil pump is exerted pressure, hydraulic oil is continued to flow in the null small oil cavity 28, cause the oil pressure in the null small oil cavity 28 to rise, when oil pressure rises to certain value, just through oil duct 11, little in-line 7, total in-line 6 passes to work in-line 3, thereby back down the steel ball 5 that is withstood by stage clip 2 in the work in-line 3, hydraulic oil is entered in the working oil chamber 14 by work in-line 3, from then on oil jack changes the heavy burden lifting into by unloaded lifting, the course of action of heavy burden lifting is guaranteed by the structure of original horizontal oil jack, when giving rise to highest line journey place, hydraulic oil in oil duct 11 and the null small oil cavity 28 is just by the spacing hole 27 of the small piston rod 10 top ends interior draining hole 25 of draining hole 26 in the orienting sleeve 15 and main piston rod 9 of flowing through, and enter in the working oil chamber 14, to guarantee that main piston rod 9 is not drawn out outside the oil cylinder 39.When needs put down crane arm 34, at first open fuel-return valve 20, at this moment the steel balls 30 that back down in the big oil return line 19 of the hydraulic oil in the working oil chamber 14 flow in the oil storage chambers 12 through total oil return lines 21; Hydraulic oil in the null small oil cavity 28 then flows into oil storage chamber 12 behind oil duct 11, little oil return line 22, total oil return line 21 on the other hand, makes main piston rod 9 inwardly do return motion, until arriving reference position.
The utility model is because after having adopted said structure, eliminated the long defective of existing oil jack idle travel required time fully, realized only needing pressing handle 35 once, just oil jack can be risen to required any control position from minimum lift location, and unloaded lifting speed is exceedingly fast, be more than ten times of the unloaded lifting speed of original jack, so can increase substantially the work efficiency of oil jack.
Claims (4)
1, a kind of horizontal oil jack idle travel one pump gives rise to ejection device, it is by hand oil pump (4), oil cylinder (39), overcoat (38), top cap (37), base (8), fuel-return valve (20) and be located at main piston rod (9) in the oil cylinder (39) etc. and form, it is characterized in that being provided with in the described main piston rod (9) small piston rod (10), small piston rod (10) is the hollow tubular of a band oil duct (11), and the one end is installed on the base (8) by swivel nut (24); Be a null small oil cavity (28) between described main piston rod (9) and the small piston rod (10), communicate with oil duct (11); Offer a total in-line (6) on the described base (8) respectively, one little in-line (7), one total oil return line (21), one little oil return line (22), one big oil return line (19), one work in-line (3), one repairing oil circuit (16), the following oil pump chamber (1) of total in-line (6) and hand oil pump (4) communicates, little in-line (7) and total in-line (6), oil duct (11) communicates, steel ball (18) is set in it, total oil return line (21) communicates with the oil storage chamber (12) of jack, little oil return line (22) and total oil return line (21), oil duct (11) communicates, big oil return line (19) and total oil return line (21), the working oil chamber of jack (14) communicates, steel ball (30) is set in it, stage clip (29), work in-line (3) and total in-line (6), the working oil chamber of jack (14) communicates, steel ball (5) is set in it, stage clip (2), the working oil chamber (14) of repairing oil circuit (16) and jack, oil storage chamber (12) communicates, and steel ball (17) is set in it.
2, horizontal oil jack idle travel one pump according to claim 1 gives rise to ejection device, it is characterized in that between base (8) and swivel nut (24) sealing member (23) being set.
3, horizontal oil jack idle travel one pump according to claim 1 gives rise to ejection device, it is characterized in that orienting sleeve (15) is fixed in the main piston rod (9), is provided with sealing member (13) between orienting sleeve (15) and main piston rod (9).
4, horizontal oil jack idle travel one pump according to claim 1 gives rise to ejection device, it is characterized in that offering spacing hole (27), offer draining hole (26) in the inside of orienting sleeve (15), offering draining hole (25) in the inside of main piston rod (9) in the top ends of small piston rod (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227135 CN2331648Y (en) | 1998-06-19 | 1998-06-19 | Horizontal oil jack once lifting to top device with shortening banking time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227135 CN2331648Y (en) | 1998-06-19 | 1998-06-19 | Horizontal oil jack once lifting to top device with shortening banking time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2331648Y true CN2331648Y (en) | 1999-08-04 |
Family
ID=33977509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98227135 Expired - Fee Related CN2331648Y (en) | 1998-06-19 | 1998-06-19 | Horizontal oil jack once lifting to top device with shortening banking time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2331648Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100343158C (en) * | 2003-08-27 | 2007-10-17 | 信孚产业股份有限公司 | Jacking device having three stage raising speed |
| US8376319B2 (en) | 2009-09-25 | 2013-02-19 | Changshu Tongrun Auto Accessory Co., Ltd | Hydraulic jack capable of displaying load and overload warning |
| CN104692279A (en) * | 2015-03-23 | 2015-06-10 | 常熟通润汽车零部件股份有限公司 | Oil returning structure |
| CN106966317A (en) * | 2017-05-17 | 2017-07-21 | 常熟通润汽车修理设备有限公司 | Unloaded quick lifting Horizontal hydraulic jack |
-
1998
- 1998-06-19 CN CN 98227135 patent/CN2331648Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100343158C (en) * | 2003-08-27 | 2007-10-17 | 信孚产业股份有限公司 | Jacking device having three stage raising speed |
| US8376319B2 (en) | 2009-09-25 | 2013-02-19 | Changshu Tongrun Auto Accessory Co., Ltd | Hydraulic jack capable of displaying load and overload warning |
| CN104692279A (en) * | 2015-03-23 | 2015-06-10 | 常熟通润汽车零部件股份有限公司 | Oil returning structure |
| CN106966317A (en) * | 2017-05-17 | 2017-07-21 | 常熟通润汽车修理设备有限公司 | Unloaded quick lifting Horizontal hydraulic 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 |