CN2304760Y - Two speed separate hydraulic jack pump - Google Patents
Two speed separate hydraulic jack pump Download PDFInfo
- Publication number
- CN2304760Y CN2304760Y CN 97236152 CN97236152U CN2304760Y CN 2304760 Y CN2304760 Y CN 2304760Y CN 97236152 CN97236152 CN 97236152 CN 97236152 U CN97236152 U CN 97236152U CN 2304760 Y CN2304760 Y CN 2304760Y
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- oil
- pump
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- oil circuit
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- Expired - Lifetime
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Abstract
The utility model relates to a two speed separate oil-pressure jack oil pump, which comprises a bottom base, a hand lifting device, an oil storage pipe, an air discharge valve, a high-pressure soft pipe, a top cap, an oil path system of small pump oil injection communicated with a small pump hole in the bottom base, an oil path system of small pump oil suction, an oil path system of main oil injection and an oil path system of small pump safety. The bottom base is provided with a step-shaped pump hole composed of a big pump hole and the small pump hole. A pump core forms a step shape to be matched with the big pump hole and the small pump hole. The oil path system of big pump oil suction, the oil path system of big pump oil injection, the oil path system of main oil injection and an oil path system of big pump overflow are communicated with the big pump hole. The utility model enables the jack to rapidly upward move in the conditions of empty load or light load and slowly upward move as the original jack in the condition of heavy load.
Description
The utility model relates to a kind of jack oil pump, particularly double speed separated type hydraulic jack oil pump.
The oil pump of existing separated type hydraulic jack, because a small pump hole and a lineal shape pump core are only arranged, so during operation separated type hydraulic jack, no matter whether oil cylinder carries, every total travel is operated once, and the hydraulic pressure oil mass of oil pump output is consistent, and oil cylinder is got to the extreme higher position from extreme lower position, often want total travel operating pumps core hundreds of times, use inconvenience.
The purpose of this utility model provides a kind of double speed separated type hydraulic jack oil pump, and it makes jack fast rise under zero load or underloading situation, the same slow rising with former jack under heavily loaded situation.
The utility model comprises base 6, what be connected with base 6 presses arm device, oil storing tube 9, bleed valve 14 and high pressure hose 37, the top cap 40 that is connected with oil storing tube 9, the little infusion oil oil-way system that in base 6, communicates; little pump oil suction line system; total fuel injection oil-way system and little pump safety oil-way system; the stepped shaft pump hole of on base 6, forming; pump core 3 matches big pump oil suction line system for stepped shaft with big pump hole 41 and small pump hole 42; the oily oil-way system of big infusion; the total fuel injection oil-way system communicates with big pump hole 41 with pump overflow oil-way system greatly by big pump hole 41 and small pump hole 42 with small pump hole 42.
Below in conjunction with accompanying drawing the utility model is further described below.
Fig. 1 is a structural drawing of the present utility model.
Fig. 2 is the A-A phantom of Fig. 1.
Fig. 3 is the B-B phantom of Fig. 1.
Fig. 4 is the C-C phantom of Fig. 1.
Fig. 5 is the D-D phantom of Fig. 2.
Fig. 6 is the E-E phantom of Fig. 3.
Fig. 7 is the structural drawing of flexible pipe 7.
Fig. 8 is that pump core 3 cooperates partial sectional view with the pump hole.
Big pump oil suction line of the present utility model system is made up of oil circuit hole 57,56,55,58,59 and steel ball 44, one end in oil circuit hole 57 communicates with oil storing tube 9, the other end communicates with oil circuit hole 56, oil circuit hole 56 communicates with oil circuit hole 55, oil circuit hole 55 communicates with oil circuit hole 58, and oil circuit hole 58 communicates with oil circuit hole 59, and oil circuit hole 59 communicates with big pump hole 41, steel ball 44 places on oil circuit hole 55 and the step that 56 link to each other, constitutes one-way valve.Big infusion oil oil-way system is made up of oil circuit hole 59,58,55,54,53, steel ball 47, spring 64, screw 49 and seal ring 52, oil circuit hole 53 1 ends communicate with the total fuel injection oil-way system, the other end communicates with oil circuit hole 54, oil circuit hole 54 communicates with oil circuit hole 55, oil circuit hole 55 communicates with oil circuit hole 58, oil circuit hole 58 communicates with oil circuit hole 59, oil circuit hole 59 communicates with big pump hole 41, steel ball 47 places on oil circuit hole 55 and the step that 54 link to each other, steel ball 47 upper ends contact with spring 64, spring 64 upper ends contact with screw 49, and 6 of screw 49 and bases have seal ring 52.Steel ball 47, spring 64, screw 49 and seal ring 52 are formed safe and reliable one-way valve.Big pump hole 41, small pump hole 42 add seal ring 74 by the thin segment head of seal ring on the base 6 31 or pump core 3 and separate.Add seal ring 5 between big pump hole 42 tops and the base 6.
Little pump oil suction line of the present utility model system is made up of oil circuit hole 57,46,45,48 and steel ball 25, oil circuit hole 57 1 ends communicate with oil storing tube 9, the other end communicates with oil circuit hole 46, oil circuit hole 46 communicates with oil circuit hole 45, oil circuit hole 45 communicates with oil circuit hole 48, oil circuit hole 48 communicates with small pump hole 42, and steel ball 25 places on the step that oil circuit hole 45 and oil circuit hole 46 link to each other, and constitutes one-way valve.Little infusion oil oil-way system is made up of oil circuit hole 48,45,43,53, steel ball 26, spring 27, screw 19 and seal ring 35, oil circuit hole 53 1 ends communicate with the total fuel injection oil-way system, the other end communicates with oil circuit hole 43, oil circuit hole 43 communicates with oil circuit hole 45, oil circuit hole 45 communicates with oil circuit hole 48, oil circuit hole 48 communicates with small pump hole 42, steel ball 26 places on oil circuit hole 45 and the step that oil circuit hole 43 links to each other, steel ball 26 upper ends contact with spring 27, spring 27 upper ends contact with screw 19, and 6 of screw 19 and bases have seal ring 35.Steel ball 26, spring 27, screw 19 and seal ring 35 are formed safe and reliable one-way valve.
Total fuel injection oil-way system of the present utility model is made up of oil circuit hole 63,65,66,67,68, steel ball 71,72, spring 34 and screw 73, oil circuit hole 63 is communicated with oil circuit hole 53 and 65, oil circuit hole 65 communicates with oil circuit hole 66, oil circuit hole 66 communicates with oil circuit hole 67, oil circuit hole 68 enters high pressure hose 37, steel ball 71 places on oil circuit hole 53 and the step that oil circuit hole 63 links to each other, steel ball 71 right-hand members contact with spring 34, spring 34 right-hand members contact with steel ball 72, steel ball 72 right-hand members contact with screw 73, and screw 73 is connected on the base 6.Big pump overflow oil-way system is made up of oil circuit hole 60,61,62, steel ball 23, spring seat 22, relief valve spring 21, screw 20,17 and seal ring 18, oil circuit hole 62 communicates with oil circuit hole 61 and oil storing tube 9 respectively, oil circuit hole 61 communicates with oil circuit hole 60, oil circuit hole 60 communicates with oil circuit hole 58, steel ball 23 places oil circuit hole 60 to link to each other with oil circuit hole 61 on the step, steel ball 23 1 ends contact with spring seat 22, spring seat 22 contacts with relief valve spring 21, relief valve spring 21 contacts with screw 20, and screw 17 and seal ring 18 are connected on the base 6.Little pump safety oil-way system is made up of oil circuit hole 50,51,62, steel ball, spring seat, safety valve spring 24, two screws and seal ring, oil circuit hole 62 communicates with oil circuit hole 51 and oil storing tube 9 respectively, oil circuit hole 51 communicates with oil circuit hole 50, oil circuit hole 50 communicates with oil circuit hole 48, steel ball places on oil circuit hole 51 and the step that oil circuit hole 50 links to each other, steel ball one end contacts with spring seat, spring seat contacts with safety valve spring 24, safety valve spring 24 contacts with a screw, and another screw and seal ring are connected on the base 6.6 of high pressure hose 37 1 ends and bases are connected by tapered thread and unsintered tape and seal, the other end is connected by tapered thread and unsintered tape with valve body 39 and seals, in order to prevent that dust from entering in the oil circuit from valve body 39, connect dust cap 38 at high pressure hose 37 and 39 of valve bodies, in the time will connecting oil cylinder, dust cap 38 is screwed off from valve body 39, when oil cylinder is separated with oil pump, need dust cap 38 is screwed on valve body 39, blocks dust.Cone screw 28 screws in base 6 and fastening, the sealing oil circuit.Screw 36 screws in base 6 and fastening, and 6 of screw 36 and bases are used adhesive seal.
The arm device of pressing of the present utility model is formed by pressing hand 7, handle 8 and grip 12, and handle 8 one ends screw in and press hand 7, and the other end puts grip 12.Pump core 3 stretches out the upper end portion of big pump hole 41, by bearing pin 4 with press hand 7 and be connected, open hole and groove that system and bearing pin 4 match respectively in the upper end portion of bottom of pressing hand 7 and pump core 3, pass by bearing pin 4 and wherein realize connecting.Pressing hand presses hand axle 2 by one and is connected with base 6 upper ends with two ring washers.Oil storing tube 9 one ends screw in base 6 and fastening, and the other end screws in nut 10 and top cap 40, and fastening with nut 10, utilize seal ring 29 to seal at oil storing tube 9 and 6 of bases, seal with seal ring 11 on 40 on oil storing tube 9 and top cap.Top cap 40 is provided with vent hole 69,70 and venting valve rod 14 and two seals circle 13 and constitutes bleed valve.During oil pump work, open bleed valve and regulate oil storing tube gas inside pressure, further improve the quality of separated type hydraulic jack oil pump, when oil pump is not worked, then close bleed valve.Seal ring 15 is loaded onto bolt 16, and bolt 16 screws in top cap 40, when needs refuel to jacking oil pump, screws out bolt 16, refuels to jacking oil pump and finishes, and bolt 16 is screwed in top cap 40.Relief valve is made up of oil return valve rod 33, seal ring 32 and steel ball 1, and steel ball 1 is on the step in oil circuit hole 66, and steel ball 1 right-hand member contacts with oil return valve rod 33, and oil return valve rod 33 and seal ring 32 are connected on the base 6.
When the utility model uses, close the relief valve of forming by oil return valve rod 33, seal ring 32 and steel ball 1, last handle 8, make to press on the hand 7 and carry, drive pump core 3 and promote, the working oil in the oil storing tube 9 is by oil cleaner screen 30, the big pump oil suction line hole 57,56 of flowing through, back down steel ball 44, the oil circuit hole 55,58,59 of flowing through again enters big pump hole 41.Simultaneously, the steel ball 25 of one-way valve is backed down in the little pump oil suction line hole 57,46 of also flowing through after by oil cleaner screen 30 of the working oil in the oil storing tube 9, and the oil circuit hole 45,48 of flowing through again enters small pump hole 42.Press down handle 8, the steel ball 44,25 of one-way valve covers the aperture in oil circuit hole 56,46 respectively in big pump, the little pump oil suction line, and the working oil that enters in big pump hole 41, the small pump hole 42 can not be flow backwards.After simultaneously the working oil in the big pump hole 41 is subjected to pressure that pump core 3 presses down, successively the oil circuit hole 59,58,55 by big infusion oil oil circuit,, back down the steel ball 26 of one-way valve, flow through oil circuit hole 54,53, back down steel ball 71, the oil circuit hole 63,65,66,67,68 of the total fuel injection oil circuit of flowing through enters high pressure hose 37.After working oil in the small pump hole is subjected to pressure that pump core 3 presses down, oil circuit hole 48,45 by little infusion oil oil circuit successively, back down the steel ball 26 of one-way valve, the oil circuit hole 43,53 of flowing through, back down the steel ball 71 of one-way valve, the oil circuit hole 63,65,66,67,68 of the total fuel injection oil circuit of flowing through enters high pressure hose 37.Repeatable operation handle 8 like this, the pump core is moved up and down repeatedly, working oil is constantly transferred to high pressure hose 37 by oil storing tube 9, be connected with oil cylinder by the valve body 39 that is attached thereto as high pressure hose 37, just can make oil cylinder work, because big pump and little pump is worked simultaneously and the big oiling in hole of big pump is faster, the oil cylinder fast rise.When heavy duty, when the working oil pressure in the high pressure hose 37 reached certain value, the working oil in the big pump hole 41 was backed down the steel ball 23 of relief valve through the oil circuit hole 59,58,60, and oil storing tube 8 is flowed back in the oil circuit hole 61,62 of flowing through.When the jack heavy duty, when the working oil pressure in the high pressure hose 37 reaches rated working pressure, working oil in the big pump hole 41 flows back to oil storing tube 9 through above-mentioned oil circuit; the oil circuit hole 48,50 of flowing through of the working oil in the small pump hole 42; steel ball that the backs down safety valve oil circuit hole 51,62 of flowing through; flow back to oil storing tube 9, in order to avoid damage equipment and jeopardize personal safety.When needs set back the oil cylinder of separated type hydraulic jack, as long as open relief valve it is resetted, at this moment, in-oil cylinder working oil flows back in the oil storing tube 9 of jacking oil pump through valve body 39, high pressure hose 37 and the oil circuit that communicates with oil cylinder 2.
When the utility model is in unloaded and light condition when jack, big pump hole 41, small pump hole 42 are given the oil cylinder oiling simultaneously, big pump hole 41 capacity are big, oiling is many, make the oil cylinder fast rise, compare with existing jacking oil pump, the number of times that same oil cylinder is got to extreme higher position total travel operating pumps core from extreme lower position significantly reduces.When jack was in heavy condition, the working oil of big pump hole 41 flowed to oil storing tube 9 through relief valve, and the working oil in the small pump hole 42 still by equally injecting oil cylinder originally, rises by normal speed.
Claims (4)
1, a kind of double speed separated type hydraulic jack oil pump comprises base (6).What be connected with base (6) presses arm device, oil storing tube (9), bleed valve (14) and high pressure hose (37), the top cap (40) that is connected with oil storing tube (9), the little infusion oil oil-way system that in base (6), communicates; little pump oil suction line system; total fuel injection oil-way system and little pump safety oil-way system; it is characterized in that the stepped shaft pump hole that on base (6), has big pump hole (41) and small pump hole (42) to form; pump core (3) matches with big pump hole (41) and small pump hole (42) for stepped shaft, big pump oil suction line system; the oily oil-way system of infusion greatly; the total fuel injection oil-way system communicates with big pump hole (41) with pump overflow oil-way system greatly with small pump hole (42).
2, double speed separated type hydraulic jack oil pump according to claim 1, it is characterized in that big pump oil suction line system is by oil circuit hole (57), (56), (55), (58), (59) and steel ball (44) form, one end in oil circuit hole (57) communicates with oil storing tube (9), the other end communicates with oil circuit hole (56), oil circuit hole (56) communicates with oil circuit hole (55), oil circuit hole (55) communicates with oil circuit hole (58), oil circuit hole (58) communicates with oil circuit hole (59), oil circuit hole (59) communicates with big pump hole (41), steel ball (44) places on oil circuit hole (55) and the step that (56) link to each other, constitutes one-way valve.
3, double speed separated type hydraulic jack oil pump according to claim 1, it is characterized in that big infusion oil oil-way system is by oil circuit hole (59), (58), (55), (54), (53), steel ball (47), spring (64), screw (49) and seal ring (52) are formed, oil circuit hole (53) one ends communicate with the total fuel injection oil-way system, the other end communicates with oil circuit hole (54), oil circuit hole (54) communicates with oil circuit hole (55), oil circuit hole (55) communicates with oil circuit hole (58), oil circuit hole (58) communicates with oil circuit hole (59), oil circuit hole (59) communicates with big pump hole (41), steel ball (47) places on oil circuit hole (55) and the step that (54) link to each other, steel ball (47) upper end contacts with spring (64), spring (64) upper end contacts with screw (49), between screw (49) and base (6) seal ring (52) is arranged.
4, double speed separated type hydraulic jack oil pump according to claim 1 is characterized in that big pump hole (41), small pump hole (42) add seal ring (74) by the thin segment head of seal ring (31) on the base (6) or pump core (3) and separate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97236152 CN2304760Y (en) | 1997-05-22 | 1997-05-22 | Two speed separate hydraulic jack pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97236152 CN2304760Y (en) | 1997-05-22 | 1997-05-22 | Two speed separate hydraulic jack pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2304760Y true CN2304760Y (en) | 1999-01-20 |
Family
ID=33947093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97236152 Expired - Lifetime CN2304760Y (en) | 1997-05-22 | 1997-05-22 | Two speed separate hydraulic jack pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2304760Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303828A (en) * | 2011-08-15 | 2012-01-04 | 常熟通润汽车零部件股份有限公司 | Hydraulic pump structure for double-speed separating type hydraulic jack |
| CN103332627A (en) * | 2013-07-02 | 2013-10-02 | 平湖市通力机械有限公司 | Backseat connecting device of separating type hydraulic jack |
| CN103342308A (en) * | 2013-07-02 | 2013-10-09 | 平湖市通力机械有限公司 | Manual oil pump of oil jack |
| CN104368635A (en) * | 2013-08-12 | 2015-02-25 | 平湖市通力机械有限公司 | Multi-purpose auto repair dresser |
| CN104909298A (en) * | 2015-06-01 | 2015-09-16 | 常熟通润汽车修理设备有限公司 | Tailstock device of portable jack oil pump oil storage cylinder |
-
1997
- 1997-05-22 CN CN 97236152 patent/CN2304760Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303828A (en) * | 2011-08-15 | 2012-01-04 | 常熟通润汽车零部件股份有限公司 | Hydraulic pump structure for double-speed separating type hydraulic jack |
| CN103332627A (en) * | 2013-07-02 | 2013-10-02 | 平湖市通力机械有限公司 | Backseat connecting device of separating type hydraulic jack |
| CN103342308A (en) * | 2013-07-02 | 2013-10-09 | 平湖市通力机械有限公司 | Manual oil pump of oil jack |
| CN104368635A (en) * | 2013-08-12 | 2015-02-25 | 平湖市通力机械有限公司 | Multi-purpose auto repair dresser |
| CN104909298A (en) * | 2015-06-01 | 2015-09-16 | 常熟通润汽车修理设备有限公司 | Tailstock device of portable jack oil pump oil storage cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |