CN102530767B - Valve integrated oil pump device of electric hydraulic jack - Google Patents
Valve integrated oil pump device of electric hydraulic jack Download PDFInfo
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- CN102530767B CN102530767B CN201210009461.6A CN201210009461A CN102530767B CN 102530767 B CN102530767 B CN 102530767B CN 201210009461 A CN201210009461 A CN 201210009461A CN 102530767 B CN102530767 B CN 102530767B
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Abstract
The invention relates to a vehicular jack device, in particular to a valve integrated oil pump device of an electric hydraulic jack, which comprises a gear pump. The gear pump comprises a gear, a front cover and a rear cover, the front cover is provided with a control valve cavity, a slider is arranged in the control valve cavity and divides the same into two cavities including the first cavity and the second cavity, the first cavity is provided with a first oil channel which is communicated with an oil feed inlet of the gear pump, a third cavity is arranged at the outer end of the first cavity, the first cavity is connected with the third cavity, a first oil feed inlet is provided with an oil outlet one-way valve, the slider is provided with a jacking rod arranged in the first cavity, the third cavity is provided with an oil outlet, the second cavity is provided with a second oil channel, the second oil channel is communicated with an oil discharge outlet of the gear pump, an oil return hole is arranged on the side wall of the control valve cavity, and the rear cover is fixedly provided with an oil inlet one-way valve. A control valve is integrated in the oil pump, so that the size of the oil pump device is reduced greatly and oil leakage probability is decreased effectively.
Description
Technical field
The present invention relates to a kind of vehicle jack device, relate in particular to the oil pump device of electric hydraulic lifting jack.
Background technology
Sedan-chair jack for vehicles generally adopts hydraulic structure, makes the top of jack lift device rise by manual control hydraulic oil, and this jack general structure is heavier, be difficult for carrying, and operation effort.Existing appearance adopts Vehicle Power socket to draw the electric hydraulic jack of power supply.
As Chinese utility model patent (application number: 200620107377.8 applyings date: 2006-09-04) disclose a kind of electric hydraulic jack for vehicle use, this jack comprises the motor that oil sources case is connected with described oil sources case, by the oil pump of driven by motor and be provided with the oil cylinder of piston rod, between described oil pump and oil cylinder, be provided with unidirectional controlled valve, unidirectional controlled valve is provided with valve cavity, described valve cavity comprises valve cavity and lower valve cavity, between described two valve cavitys, be provided with the first logical hydraulic fluid port, in described upper valve cavity, be provided with and can adjust with the forward and reverse rotation of motor the check valve of oil circuit direction, in described lower valve cavity, be provided with can be with the forward and reverse rotation of motor axially movable push rod component.
As Chinese utility model patent (application number: 200920304975.8 applyings date: 2009-06-24) disclose hydraulic jacking mechanism, this mechanism comprises oil cylinder, fuel tank, the oil pump communicating with fuel tank, with the joining motor of oil pump, in oil cylinder, be provided with push rod, the inner end of push rod is provided with piston, piston is divided into oil cylinder to stretch out oil pocket and indentation oil pocket, oil pump respectively by delivery line with stretch out oil pocket and indentation oil pocket communicates, described delivery line is provided with balance cock, this balance cock comprises compensating cylinder and is located at the balanced plug in compensating cylinder, balanced plug is divided into Zuo Qiangheyou chamber compensating cylinder, left chamber with stretch out oil pocket and communicate, right chamber communicates with indentation oil pocket, in Zuo Qiang Heyou chamber, be respectively equipped with the movable plugging structure for liquid for plugging force feed, two described delivery lines pass through respectively plugging structure, described balanced plug can be slided in compensating cylinder, balanced plug can make a certain plugging structure conducting after sliding.
Patent of invention (the application number: 201110031310.6 applyings date: 2011-01-28) disclosed a kind of electrical hydraulic jack device for vehicle of applicant's application, this device comprises hydraulic jacking device, fuel tank, motor, oil pump and by-pass valve control body, hydraulic jacking device connects by-pass valve control body by oil circuit, the work of motor forward or reverse control oil pump, in described by-pass valve control body, be provided with oil cylinder cavity, in oil cylinder cavity, slide and be provided with sliding shoe, sliding shoe is divided into the first cavity and the second cavity by oil cylinder cavity, on the first cavity and the second cavity, be respectively equipped with the first logical hydraulic fluid port, on the first logical hydraulic fluid port, be respectively equipped with for sealing the elastic component of the first logical hydraulic fluid port, the outside of two first logical hydraulic fluid ports connects described hydraulic jacking device and described fuel tank by oil circuit respectively, the two ends of described sliding shoe are respectively equipped with push rod, and push rod is respectively over against elastic component, and push rod is selected one with sliding shoe motion and backed down an elastic component one first logical hydraulic fluid port is opened wide, and being respectively equipped with the first oilhole at the first cavity and the second cavity, the first oilhole connects respectively oil inlet and the oil outlet of oil pump by oil circuit.
In above-mentioned patent, relate to oil pump and by-pass valve control, because oil pump and valve in existing technology are generally design separately, such design has not only increased the volume of product, and small and exquisite for jack for car, using easy to carry is a requirement.Meanwhile, the phenomenon that easily occurs leakage of oil for the place of oil pump and a plurality of by-pass valve control settings.
Summary of the invention
The technological deficiency existing in order to solve above-mentioned electrical hydraulic jack device for vehicle, the oil pump device that the object of this invention is to provide a kind of electric hydraulic lifting jack of integrated valve body, this device is integrated into by-pass valve control in oil pump, the volume of product is dwindled greatly, this oil pump can directly install in fuel tank simultaneously, effectively reduce the probability of leakage of oil, there is feature simple in structure, easy to use.
In order to realize above-mentioned object, the present invention has adopted following technical scheme:
The oil pump device of the electric hydraulic lifting jack of integrated valve body, this oil pump device comprises gear type pump, and gear type pump comprises gear, protecgulum and bonnet, and gear is arranged in the gear type pump cavity of protecgulum and bonnet formation; By-pass valve control cavity is set on protecgulum, and by-pass valve control cavity is outside equipped with the first plug sealing, in by-pass valve control cavity, slides and is provided with sliding shoe, and sliding shoe is divided into the first cavity and the second cavity by by-pass valve control cavity; On the first cavity, be provided with the first oil circuit, the first oil circuit is communicated with the upper hydraulic fluid port of gear type pump, is the first cavity fuel feeding in gear forward; The outer end of the first described cavity is provided with the 3rd cavity, the first cavity is connected by the first logical hydraulic fluid port is set with the 3rd cavity, on the first logical hydraulic fluid port, be provided with for sealing the oil outlet one-way valve of the first logical hydraulic fluid port, described sliding shoe is provided with to move on can be with sliding shoe and backs down oil outlet one-way valve and make the first logical unlimited push rod of hydraulic fluid port in the first cavity, is provided with the oil outlet of lifting device for connecting hydraulic jack top on the 3rd cavity; On the second described cavity, be provided with the second oil circuit, the second oil circuit is communicated with the lower hydraulic fluid port of gear type pump, in gear reversion, it is the second cavity fuel feeding, and be provided with for connecting the fuel return hole of fuel tank on the sidewall of the by-pass valve control cavity sealing at sliding shoe, when moving on sliding shoe, described fuel return hole is conducted with the second described oil circuit; On described bonnet, be fixed with in line check valve, the inner of in line check valve is connected with the lower hydraulic fluid port of described gear type pump, and the outer end of in line check valve is provided with for connecting the oil inlet port of fuel tank.
As further improvement, on above-mentioned bonnet, be also fixed with by pass valve, the inner of by pass valve is connected with the upper hydraulic fluid port of described gear type pump, and the outer end of by pass valve is provided with for connecting the first oil through of fuel tank.When load pressure is greater than 1.2T (this value can be adjusted setting), by pass valve is opened, and high pressure oil out of oil pump comes back to fuel tank through this oil circuit, in order to avoid damage product because of overload.
As further improving again, above-mentioned by pass valve comprises valve body, needle, stage clip and set screw, the inner of valve body is connected with the upper hydraulic fluid port of described gear type pump, the first described oil outlet is arranged on the outer end of valve body, described needle is arranged on valve body inner sealing oil outlet and upper hydraulic fluid port, and described stage clip is arranged in set screw, and the rear end of stage clip and needle offsets, described set screw and valve body are threaded connection, and are provided with captive nut in the outer end of set screw.
As further improving again, on above-mentioned bonnet, be also fixed with Fuel Tanking Unit, Fuel Tanking Unit comprises oil storage plug, bonnet is provided with the 3rd oil through in the inner of oil storage plug, the 3rd oil through is connected with the upper hydraulic fluid port of described gear type pump, and the outer end of oil storage plug is provided with for connecting the second oil outlet of fuel tank; The inner chamber of oil storage plug is provided with the separator for shutoff cavity two ends, and separator is divided into two cavitys by the inner chamber of oil storage plug.When rising, hydraulic jacking device gives the first oil circuit fuel feeding by oil pump, separator is fitted in the left side of oil storage plug inner chamber under the effect of oil pressure, make to be full of in oil storage cavity hydraulic oil, when hydraulic jacking device declines, motor reversal, oil suction, the hydraulic oil in oil storage cavity makes enough oil promote sliding shoe and backs down oil outlet one-way valve, efficiently solves the problem that declines and be obstructed.
As further improving again, the steel ball that above-mentioned separator adopts diameter to match with oil storage plug inner chamber.
As further improving, above-mentioned oil outlet one-way valve comprises the second plug, spring and steel ball again, and the second plug is fixed on protecgulum, and spring is arranged on the second plug Nei， outer end and steel ball offsets, and steel ball and the first logical hydraulic fluid port offset and seal the first logical hydraulic fluid port.
As further improving, above-mentioned in line check valve comprises valve body, spring and steel ball again, and valve body is fixed on bonnet, and spring is arranged on body cavity, and steel ball one end and spring offset, other end closed valve inner chamber.
As further improving, the centre of above-mentioned sliding shoe is provided with for sealing the O type circle of the first cavity and the second cavity again.
The present invention, owing to having adopted above-mentioned technical scheme, is integrated into by-pass valve control in oil pump, and the volume of product is dwindled greatly, and this oil pump can directly install in fuel tank simultaneously, effectively reduces the probability of leakage of oil, has feature simple in structure, easy to use.
Accompanying drawing explanation
Fig. 1 is the theory structure schematic diagram that the present invention uses.
Fig. 2 is the structural representation that the present invention uses.
Fig. 3 is the structural representation of oil pump device of the present invention.
Fig. 4 is the structural representation of by-pass valve control and oil outlet one-way valve.
Fig. 5 is the structural representation of by pass valve.
Fig. 6 is the structural representation of Fuel Tanking Unit.
Fig. 7 is the structural representation of in line check valve.
The specific embodiment
A kind of electric hydraulic lifting jack as shown in Figure 1 and Figure 2, this jack comprises hydraulic jacking device 1, oil pump device 4, fuel tank 6, motor 5 and support 10, described hydraulic jacking device 1 is arranged on a side of support 10, the opposite side of support 10 is provided with mount pad 11, mount pad 11 towards a side of hydraulic jacking device 1 described fuel tank 6 is set, the opposite side of mount pad 11 arranges described motor 5; Described fuel tank 6 adopts elastomeric material to make, fuel tank 6 is capsule formula " spill " structure, the recess 61 of fuel tank 6 is stuck on the telescopic boom of hydraulic jacking device 1, the opening sealing of fuel tank 6 is fixed on mount pad 11, described oil pump device 4 is arranged in fuel tank 6, and the oil inlet of oil pump device 4 is offered towards fuel tank 6, and is provided with oil supply gallery 15 on described mount pad 11 and support 10, oil supply gallery 15 one end connect oil pump device 4, and the other end is connected to hydraulic jacking device 1.
As shown in Figure 7, on described bonnet 42, be fixed with in line check valve 9, bonnet 42 is provided with the first oil through 45 in the inner of in line check valve 9, the first oil through 45 is connected with the lower hydraulic fluid port 48 of described gear type pump, the outer end of in line check valve is provided with for connecting the oil inlet port 92 of fuel tank 6, described in line check valve comprises valve body 91, spring 94 and steel ball 93, valve body 91 is fixed on the top of the first oil through 45, spring 94 is arranged on the inner chamber of valve body 91, spring 94 belows and the first oil through 45 offset, steel ball 93 one end and spring 94 offset, the inner chamber of other end closed valve 91.
As shown in Figure 5, on bonnet 42, be also fixed with by pass valve 7, bonnet 42 is provided with the second oil through 46, the second oil throughs 46 and is connected with the upper hydraulic fluid port 49 of described gear type pump in the inner of by pass valve 7, the outer end of by pass valve 7 is provided with for connecting the first oil outlet 76 of fuel tank 6.By pass valve 7 comprises valve body 71, needle 74, stage clip 75 and set screw 72, the inner of valve body 71 is arranged on the top of the second oil through 46, the first described oil outlet 76 is arranged on valve body 71 outer end, described needle 74 is arranged on valve body 71 inner sealing the first oil outlets 76 and upper hydraulic fluid port 49, described stage clip 75 is arranged in set screw 72, stage clip 75 offsets with needle 74 rear end, described set screw 72 is threaded connection with valve body 71, and is provided with captive nut 73 in set screw 72 outer end.When load pressure is greater than 1.2T (this value can be adjusted setting), by pass valve 7 is opened, and high pressure oil out of oil pump comes back to fuel tank 6 through oil circuit, in order to avoid damage product because of overload.
As shown in Figure 6, on bonnet 42, be also fixed with Fuel Tanking Unit 8, Fuel Tanking Unit 8 comprises oil storage plug 81, bonnet 42 is provided with the 3rd oil through 47 in the inner of oil storage plug 81, the 3rd oil through 47 is connected with the upper hydraulic fluid port 49 of described gear type pump, and oil storage plug 81 outer end is provided with for connecting the second oil outlet 85 of fuel tank 6; The inner chamber of oil storage plug 81 is provided with the separator 83 for shutoff cavity two ends, the steel ball that separator 83 adopts diameter to match with oil storage plug 81 inner chambers, and separator 83 is divided into two cavitys by the inner chamber of oil storage plug 81.
As shown in Figure 1, while needing hydraulic jacking device 1 to rise, by gear type pump, give the first oil circuit 22 fuel feeding, oil pressure is pushed oil outlet one-way valve open rises hydraulic jacking device 1 to oil supply gallery 15 fuel feeding, simultaneously separator 83 is fitted in the second oil outlet 85 under the effect of oil pressure, makes to be full of in oil storage cavity hydraulic oil.When needs hydraulic jacking device 1 declines, motor 5 reversions, oil suction, hydraulic oil in oil storage cavity makes enough oil promote sliding shoe 3 and backs down oil outlet one-way valve, efficiently solve the problem that declines and be obstructed, expose fuel return hole 24 simultaneously, oil is got back to fuel tank through the second oil circuit 23, fuel return hole 24.
Claims (6)
1. the oil pump device of the electric hydraulic lifting jack of integrated valve body, this oil pump device comprises gear type pump, gear type pump comprises gear (50), protecgulum (41) and bonnet (42), and gear (50) is arranged in the gear type pump cavity of protecgulum (41) and bonnet (42) formation; It is characterized in that: protecgulum arranges by-pass valve control cavity on (41), by-pass valve control cavity is outside equipped with the first plug (43) sealing, in by-pass valve control cavity, slide and be provided with sliding shoe (3), sliding shoe (3) is divided into the first cavity (20) and the second cavity (30) by by-pass valve control cavity; On the first cavity (20), be provided with the first oil circuit (22), the first oil circuit (22) is communicated with the upper hydraulic fluid port (49) of gear type pump, is the first cavity (20) fuel feeding in gear (50) forward; The outer end of described the first cavity (20) is provided with the 3rd cavity (40), the first cavity (20) is connected by the first logical hydraulic fluid port (27) is set with the 3rd cavity (40), on the first logical hydraulic fluid port (27), be provided with for sealing the oil outlet one-way valve of the first logical hydraulic fluid port (27), described sliding shoe (3) is provided with and can backs down oil outlet one-way valve and make the first logical unlimited push rod (31) of hydraulic fluid port (27) with moving on sliding shoe (3) in the first cavity (20), is provided with the first oil outlet (21) of lifting device for connecting hydraulic jack top on the 3rd cavity (40); On described the second cavity (30), be provided with the second oil circuit (23), the second oil circuit (23) is communicated with the lower hydraulic fluid port (48) of gear type pump, in gear (50) reversion, it is the second cavity (30) fuel feeding, and be provided with the fuel return hole (24) for connecting fuel tank (6) on the sidewall of the by-pass valve control cavity sealing at sliding shoe (3), when moving on sliding shoe (3), described fuel return hole (24) is conducted with described the second oil circuit (23); On described bonnet (42), be fixed with in line check valve (9), the inner of in line check valve (9) is connected with the lower hydraulic fluid port (48) of described gear type pump, and the outer end of in line check valve (9) is provided with the oil inlet port (92) for connecting fuel tank (6); On described bonnet (42), be also fixed with Fuel Tanking Unit (8) and by pass valve (7), Fuel Tanking Unit (8) comprises oil storage plug (81), bonnet (42) is provided with the 3rd oil through (47) in the inner of oil storage plug (81), the 3rd oil through (47) is connected with the upper hydraulic fluid port (49) of described gear type pump, and the outer end of oil storage plug (81) is provided with for connecting second oil outlet (85) of fuel tank (6); The inner chamber of oil storage plug (81) is provided with the separator (83) for shutoff cavity two ends, separator (83) is divided into two cavitys by the inner chamber of oil storage plug (81), the inner of described by pass valve (7) is connected with the upper hydraulic fluid port (49) of described gear type pump, and the outer end of by pass valve (7) is provided with for connecting first oil through (76) of fuel tank (6).
2. the oil pump device of the electric hydraulic lifting jack of integrated valve body according to claim 1, it is characterized in that: by pass valve (7) comprises valve body (71), needle (74), stage clip (75) and set screw (72), the inner of valve body (71) is connected with the upper hydraulic fluid port (49) of described gear type pump, described the first oil outlet (21) is arranged on the outer end of valve body (71), described needle (74) is arranged on valve body (71) inner sealing oil outlet (21) and upper hydraulic fluid port (49), described stage clip (75) is arranged in set screw (72), stage clip (75) offsets with the rear end of needle (74), described set screw (72) is threaded connection with valve body (71), and be provided with captive nut (73) in the outer end of set screw (72).
3. the oil pump device of the electric hydraulic lifting jack of integrated valve body according to claim 1, is characterized in that the steel ball that separator (83) adopts diameter to match with oil storage plug (81) inner chamber.
4. the oil pump device of the electric hydraulic lifting jack of integrated valve body according to claim 1, it is characterized in that: oil outlet one-way valve comprises the second plug (44), spring (25) and steel ball (26), the second plug is fixed on protecgulum (41), spring (25) is arranged in the second plug (44), outer end and steel ball (26) offset, and steel ball (26) offsets and seals the first logical hydraulic fluid port (27) with the first logical hydraulic fluid port (27).
5. the oil pump device of the electric hydraulic lifting jack of integrated valve body according to claim 1, it is characterized in that: in line check valve (9) comprises valve body (91), spring (93) and steel ball (94), valve body (91) is fixed on bonnet (42), spring (93) is arranged on valve body (91) inner chamber, steel ball (94) one end and spring (93) offset, other end closed valve (91) inner chamber.
6. the oil pump device of the electric hydraulic lifting jack of integrated valve body according to claim 1, is characterized in that: the centre of sliding shoe (3) is provided with for sealing the O type circle (32) of the first cavity (20) and the second cavity (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009461.6A CN102530767B (en) | 2012-01-13 | 2012-01-13 | Valve integrated oil pump device of electric hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009461.6A CN102530767B (en) | 2012-01-13 | 2012-01-13 | Valve integrated oil pump device of electric hydraulic jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102530767A CN102530767A (en) | 2012-07-04 |
| CN102530767B true CN102530767B (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210009461.6A Active CN102530767B (en) | 2012-01-13 | 2012-01-13 | Valve integrated oil pump device of electric hydraulic jack |
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| CN (1) | CN102530767B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104512831A (en) * | 2013-10-07 | 2015-04-15 | 张安月 | Hydraulic pump, lifting apparatus for vehicles and lifting and inflated dual-purpose apparatus for vehicles |
| CN104555801A (en) * | 2013-10-09 | 2015-04-29 | 张安月 | Novel hydraulic pump, automobile hoisting equipment and automobile hoisting and inflating dual-purpose equipment |
| CN108150463A (en) * | 2018-02-01 | 2018-06-12 | 浙江微力电动科技有限公司 | Integral electric hydraulic system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2222256Y (en) * | 1995-06-26 | 1996-03-13 | 江苏省金坛市阀门厂 | Integrated type hydraulic power device |
| CN201172613Y (en) * | 2007-12-27 | 2008-12-31 | 张寅秀 | Electric hydraulic jack |
| CN101537991B (en) * | 2009-04-09 | 2012-01-04 | 温岭市鑫磊空压机有限公司 | Dual-use hydraulic electric jack |
| CN202465176U (en) * | 2012-01-13 | 2012-10-03 | 温岭市鑫磊空压机有限公司 | Oil pump device integrated with valve body for electric hydraulic jack |
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Address after: 317500 Zhejiang city of Taizhou province Wenling City Industrial City Wenling Xinlei Air Compressor Co. Ltd. Patentee after: Compressor Xinlei Limited by Share Ltd Address before: 317500 Zhejiang city of Taizhou province Wenling City Industrial City Wenling Xinlei Air Compressor Co. Ltd. Patentee before: Wenling Xinlei Air Compressor Co., Ltd. |