CN102530767B - Oil pump device of electro-hydraulic jack with integrated valve body - Google Patents
Oil pump device of electro-hydraulic jack with integrated valve body 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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- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 14
- 125000006850 spacer group Chemical group 0.000 claims 3
- 239000003921 oil Substances 0.000 description 135
- 239000012530 fluid Substances 0.000 description 31
- 239000002828 fuel tank Substances 0.000 description 25
- 239000000446 fuel Substances 0.000 description 18
- 239000010720 hydraulic oil Substances 0.000 description 5
- 208000002925 dental caries Diseases 0.000 description 4
- 238000007373 indentation Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000007963 capsule composition Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- -1 motor Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
本发明涉及一种车辆用千斤顶装置。集成阀体的电动液压千斤顶的油泵装置，该油泵装置包括齿轮泵，齿轮泵包括齿轮、前盖和后盖；前盖上设置控制阀门腔体，控制阀门腔体内设置有滑动块，滑动块将控制阀门腔体分割成两个腔体；第一腔体上设置有第一油路，第一油路连通齿轮泵的上油口；第一腔体的外端设置有第三腔体，第一腔体与第三腔体相连接，第一通油口上设置有出油单向阀，滑动块在第一腔体内设有顶杆，第三腔体上设置有出油口；第二腔体上设置有第二油路，第二油路连通齿轮泵的下油口，并在控制阀门腔体的侧壁上设有回油孔；后盖上固定设有进油单向阀。本发明将控制阀门集成到油泵中，使产品的体积大大缩小，有效降低了漏油的几率。
The invention relates to a vehicle jack device. An oil pump device of an electro-hydraulic jack with an integrated valve body, the oil pump device includes a gear pump, the gear pump includes a gear, a front cover and a rear cover; The cavity of the control valve is divided into two cavities; the first cavity is provided with a first oil passage, and the first oil passage is connected to the oil port of the gear pump; the outer end of the first cavity is provided with a third cavity, and the second The first cavity is connected with the third cavity, the first oil port is provided with an oil outlet check valve, the sliding block is provided with a push rod in the first cavity, and the third cavity is provided with an oil outlet; the second cavity The body is provided with a second oil passage, which communicates with the lower oil port of the gear pump, and an oil return hole is provided on the side wall of the control valve cavity; the rear cover is fixed with an oil inlet check valve. The invention integrates the control valve into the oil pump, greatly reduces the volume of the product, and effectively reduces the probability of oil leakage.
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009461.6A CN102530767B (en) | 2012-01-13 | 2012-01-13 | Oil pump device of electro-hydraulic jack with integrated valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009461.6A CN102530767B (en) | 2012-01-13 | 2012-01-13 | Oil pump device of electro-hydraulic jack with integrated valve body |
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 Expired - Fee Related CN102530767B (en) | 2012-01-13 | 2012-01-13 | Oil pump device of electro-hydraulic jack with integrated valve body |
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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 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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- 2012-01-13 CN CN201210009461.6A patent/CN102530767B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN102530767A (en) | 2012-07-04 |
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Address after: 317500 Zhejiang city of Taizhou province Wenling City Industrial City Wenling Xinlei Air Compressor Co. Ltd. Patentee after: XINLEI COMPRESSOR CO.,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. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 |
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| CF01 | Termination of patent right due to non-payment of annual fee |