CN102556887B - Portable electric hydraulic jack - Google Patents
Portable electric hydraulic jack Download PDFInfo
- Publication number
- CN102556887B CN102556887B CN 201210009445 CN201210009445A CN102556887B CN 102556887 B CN102556887 B CN 102556887B CN 201210009445 CN201210009445 CN 201210009445 CN 201210009445 A CN201210009445 A CN 201210009445A CN 102556887 B CN102556887 B CN 102556887B
- Authority
- CN
- China
- Prior art keywords
- oil
- cavity
- fuel tank
- fluid port
- hydraulic fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Check Valves (AREA)
Abstract
The invention relates to a portable electric hydraulic jack. The technical scheme includes that a hydraulic jacking device of the jack is arranged on one side of a base, a mount is arranged on the other side of the base, an oil tank is arranged on one side of the mount facing the hydraulic jacking device, and a motor is arranged on the other side of the mount. The oil tank is made of elastic materials and in a 'concave' bag type structure, a concave opening of the oil tank is clamped on a telescopic arm of the hydraulic jacking device, an opening end of the oil tank is hermetically fixed on the mount, an oil pump device is arranged in the oil tank, an oil inlet of the oil pump device is arranged towards the oil tank, oil supply passages are arranged on the mount and the base, one ends of the oil supply passages are connected with the oil pump device, and the other ends of the oil supply passages are connected with the hydraulic jacking device. The concave opening of the oil tank having the 'concave' bag type structure is clamped on the telescopic arm of the hydraulic jacking device, the problem about arrangement of the oil tank is solved, and meanwhile, the size of the oil tank is reduced due to the fact that the oil pump device is arranged in the oil tank directly.
Description
Technical field
The present invention relates to a kind of jack device.
Background technology
Car generally adopts hydraulic structure with jack, makes the top of jack lift device by manual control hydraulic oil and rises, and this jack general structure is heavier, be difficult for carrying, and the operation effort.Existing the appearance adopts the 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 oil sources case and is connected the motor that the oil sources case connects, by the oil pump of driven by motor and be provided with the oil cylinder of piston rod, be provided with unidirectional controlled valve between described oil pump and oil cylinder, unidirectional controlled valve is provided with the valve cavity, described valve cavity comprises valve cavity and lower valve cavity, be provided with the first logical hydraulic fluid port between described two valve cavitys, be provided with in described upper valve cavity and can adjust with the forward and reverse rotation of motor the check valve of oil circuit direction, be provided with in described lower valve cavity 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 that communicates with fuel tank, with the joining motor of oil pump, be provided with push rod in oil cylinder, the inner end of push rod is provided with piston, piston is divided into oil cylinder and stretches out oil pocket and indentation oil pocket, oil pump respectively by delivery line with stretch out oil pocket and the indentation oil pocket communicates, described delivery line is provided with balance cock, this balance cock comprises compensating cylinder and is located at the interior balanced plug of compensating cylinder, balanced plug is divided into left chamber and right chamber to compensating cylinder, left chamber with stretch out oil pocket and communicate, right chamber communicates with the indentation oil pocket, be respectively equipped with the plugging structure for the activity of liquid for plugging force feed in left chamber and right chamber, described two 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.
Chinese invention patent application (application number: 201010177728.3 applyings date: the oil supply structure that 2010-05-20) discloses a kind of hydraulic electric jack, described hydraulic electric jack also comprises base and top act structure, oil supply structure comprises fuel tank, oil inlet passage and oil discharge passage, described fuel tank is arranged on the base of motor-driven jack, described oil inlet passage and oil discharge passage one end all are connected with fuel tank, the other end is all lifted structure with the top of hydraulic electric jack and is linked, described fuel tank is cryptomere, and this fuel tank adopts elastomeric material to make.For 201010177728.3 patents, fuel tank is oil supply structure that cryptomere solved hydraulic electric jack and the technical matters such as has easy leakage of oil, a jack easily contaminated, service life is shorter.But fuel tank and motor-driven jack minute are arranged, and have so just greatly increased the volume of whole device, are not easy to carry and store.And small and exquisite for jack for car, using easy to carry is a requirement.
In addition, for relating to oil pump and by-pass valve control in 200620107377.8 patents, because oil pump and valve in existing technology are generally design separately, such design has not only increased the volume of product, simultaneously, 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 that exists for the oil supply structure that solves the 201010177728.3 above-mentioned described hydraulic electric jacks of patent, the purpose of this invention is to provide a kind of Portable electric hydraulic jack, this jack has solved the problem that fuel tank arranges, greatly dwindled the volume of single unit system, make product more small and exquisite, be easy to carry and store.
In order to realize above-mentioned purpose, the present invention has adopted following technical scheme:
A kind of Portable electric hydraulic jack, this jack comprises hydraulic jacking device, oil pump device, fuel tank, motor and support, described hydraulic jacking device is arranged on a side of support, the opposite side of support is provided with mount pad, mount pad towards a side of hydraulic jacking device described fuel tank is set, the opposite side of mount pad arranges described motor; Described fuel tank adopts elastomeric material to make, fuel tank is capsule formula " spill " structure, the recess of fuel tank is stuck on the telescopic boom of hydraulic jacking device, the open end sealing of fuel tank is fixed on mount pad, described oil pump device is arranged in fuel tank, and the oil inlet of oil pump device is offered towards fuel tank, and is provided with oil supply gallery on described mount pad and support, oil supply gallery one end connects oil pump device, and the other end is connected to hydraulic jacking device.As preferably, above-mentioned elastomeric material adopts rubber.
As further improvement, above-mentioned oil pump device comprises gear type pump and by-pass valve control, described gear type pump comprises gear, protecgulum and bonnet, protecgulum is captiveed joint with described mount pad, described gear is arranged in the gear type pump cavity of protecgulum and bonnet formation, and be connected with described motor-driven, described by-pass valve control is integrated to be arranged on protecgulum.
As further improving again, the by-pass valve control cavity is set on above-mentioned protecgulum, the by-pass valve control cavity is outside equipped with the first plug sealing, slides in the by-pass valve control cavity and is provided with sliding shoe, and sliding shoe is divided into the first cavity and the second cavity with the by-pass valve control cavity; Be provided with the first oil circuit on the first cavity, the first oil circuit is communicated with the upper hydraulic fluid port of gear type pump, is the first cavity fuel feeding in the gear forward; The outer end of described the first cavity is provided with the 3rd cavity, the first cavity is connected by the first logical hydraulic fluid port with the 3rd cavity, be provided with the oil outlet one-way valve for sealing the first logical hydraulic fluid port on the first logical hydraulic fluid port, described sliding shoe is provided with to move on can be with sliding shoe in the first cavity and backs down the push rod that oil outlet one-way valve opens wide the first logical hydraulic fluid port, and being provided with oil outlet on the 3rd cavity, oil outlet connects described oil supply gallery; Be provided with the second oil circuit on described the second cavity, the second oil circuit is communicated with the lower hydraulic fluid port of gear type pump, be the second cavity fuel feeding in the gear counter-rotating, and be provided with fuel return hole on the sidewall of the by-pass valve control cavity that sliding shoe seals, fuel return hole is connected to described fuel tank, is conducted with described the second oil circuit when described fuel return hole moves on sliding shoe; Be fixed with in line check valve on described bonnet, 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 oil inlet, and oil inlet is communicated with described fuel tank.
As further improving again, also be fixed with by pass valve on above-mentioned bonnet, 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 communicated with described fuel tank.During greater than 1.2T (this value can be adjusted setting), by pass valve is opened when load pressure, and oil pump high pressure oil out 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, described the first 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, also be fixed with Fuel Tanking Unit on above-mentioned bonnet, Fuel Tanking Unit comprises the 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 the second oil outlet that connects 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 with 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 and be full of hydraulic oil in oil storage cavity, when hydraulic jacking device descends, motor reversal, hydraulic oil in oil suction, oil storage cavity makes enough oil promote sliding shoe and backs down oil outlet one-way valve, efficiently solves the problem that descends and be obstructed.
As further improvement 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 in the second plug, and outer end and steel ball offset, 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 the O type circle for sealing the first cavity and the second cavity again.
The present invention is owing to having adopted above-mentioned technical scheme, at first fuel tank is made the capsule formula structure of " spill ", the recess of fuel tank is stuck on the telescopic boom of hydraulic jacking device, has solved the problem that arranges of fuel tank, simultaneously oil pump device has directly been accomplished in fuel tank, reduced the volume that arranges.Further, the present invention also 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 characteristics simple in structure, easy to use.
Description of drawings
Fig. 1 is principle of the invention structural representation.
Fig. 2 is structural representation of the present invention.
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 Portable electric hydraulic 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 1 ends connect oil pump device 4, and the other end is connected to hydraulic jacking device 1.
as shown in Figure 7, be fixed with in line check valve 9 on described bonnet 42, 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 the oil inlet port 92 that connects 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 1 ends and spring 94 offset, the inner chamber of other end closed valve 91.
As shown in Figure 5, also be fixed with by pass valve 7 on bonnet 42, 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 the first oil outlet 76 that connects 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, described the first oil outlet 76 is arranged on the outer end of valve body 71, 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 the rear end of needle 74, described set screw 72 is threaded connection with valve body 71, and is provided with captive nut 73 in the outer end of set screw 72.During greater than 1.2T (this value can be adjusted setting), by pass valve 7 is opened when load pressure, and oil pump high pressure oil out comes back to fuel tank 6 through oil circuit, in order to avoid damage product because of overload.
As shown in Figure 6, also be fixed with Fuel Tanking Unit 8 on bonnet 42, 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 the second oil outlet 85 that connects 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 with the inner chamber of oil storage plug 81.
As shown in Figure 1, when needing hydraulic jacking device 1 to rise, give the first oil circuit 22 fuel feeding by gear type pump, oil pressure is pushed oil outlet one-way valve open rises hydraulic jacking device 1 to oil supply gallery 15 fuel feeding, separator 83 is fitted in the second oil outlet 85 under the effect of oil pressure simultaneously, makes to be full of hydraulic oil in oil storage cavity.When needs hydraulic jacking device 1 descends, motor 5 counter-rotatings, 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 descends and be obstructed, expose simultaneously fuel return hole 24, oil is got back to fuel tank through the second oil circuit 23, fuel return hole 24.
Claims (10)
1. Portable electric hydraulic jack, this jack comprises hydraulic jacking device (1), oil pump device (4), fuel tank (6), motor (5) and support (10), it is characterized in that: 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) arranges described fuel tank (6) towards a side of hydraulic jacking device (1), and 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 of fuel tank (6) is stuck on the telescopic boom of hydraulic jacking device (1), the open end sealing of fuel tank (6) is fixed on mount pad (11), described oil pump device (4) is arranged in fuel tank (6), the oil inlet of oil pump device (4) is offered towards fuel tank (6), and be provided with oil supply gallery (15) on described mount pad (11) and support (10), oil supply gallery (15) one ends connect oil pump device (4), the other end is connected to hydraulic jacking device (1).
2. a kind of Portable electric hydraulic jack according to claim 1, it is characterized in that: oil pump device (4) comprises gear type pump and by-pass valve control (2), described gear type pump comprises gear (50), protecgulum (41) and bonnet (42), protecgulum (41) is captiveed joint with described mount pad (11), described gear (50) is arranged in the gear type pump cavity of protecgulum (41) and bonnet (42) formation, and be in transmission connection with described motor (5), described by-pass valve control (2) is integrated to be arranged on protecgulum (41).
3. a kind of Portable electric hydraulic jack according to claim 2, it is characterized in that: described protecgulum arranges the by-pass valve control cavity on (41), the by-pass valve control cavity is outside equipped with the first plug (43) sealing, slide in the by-pass valve control cavity and be provided with sliding shoe (3), sliding shoe (3) is divided into the first cavity (20) and the second cavity (30) with the by-pass valve control cavity, be provided with the first oil circuit (22) on the first cavity (20), 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) with the 3rd cavity (40), be provided with the oil outlet one-way valve for sealing the first logical hydraulic fluid port (27) on the first logical hydraulic fluid port (27), described sliding shoe (3) is provided with in the first cavity (20) and can backs down the push rod (31) that oil outlet one-way valve opens wide the first logical hydraulic fluid port (27) with moving on sliding shoe (3), and be provided with the first oil outlet (21) on the 3rd cavity (40), the first oil outlet (21) connects described oil supply gallery (15), be provided with the second oil circuit (23) on described the second cavity (30), the second oil circuit (23) is communicated with the lower hydraulic fluid port (48) of gear type pump, be the second cavity (30) fuel feeding in gear (50) counter-rotating, and be provided with fuel return hole (24) on the sidewall of the by-pass valve control cavity that sliding shoe (3) seals, fuel return hole (24) is connected to described fuel tank (6), is conducted with described the second oil circuit (23) when described fuel return hole (24) moves on sliding shoe (3), be fixed with in line check valve (9) on described bonnet (42), the inner of in line check valve (9) is provided with the first oil through (45), 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 (9) is provided with oil inlet port (92), and oil inlet port (92) is communicated with described fuel tank (6).
4. according to claim 2 or 3 described a kind of Portable electric hydraulic jacks, it is characterized in that: also be fixed with by pass valve (7) on bonnet (42), bonnet (42) is provided with the second oil through (46) in the inner of by pass valve (7), the second oil through (46) is connected with the upper hydraulic fluid port (49) of described gear type pump, and the outer end of by pass valve (7) is communicated with described fuel tank (6).
5. a kind of Portable electric hydraulic jack according to claim 4, 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 the first 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).
6. a kind of Portable electric hydraulic jack according to claim 3, it is characterized in that: also be fixed with Fuel Tanking Unit (8) on bonnet (42), 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 the second oil outlet (85) that connects fuel tank (6); The inner chamber of oil storage plug (81) is provided with the separator (83) for shutoff cavity two ends, and separator (83) is divided into two cavitys with the inner chamber of oil storage plug (81).
7. a kind of Portable electric hydraulic jack according to claim 6, is characterized in that: the steel ball that separator (83) adopts diameter to match with oil storage plug (81) inner chamber.
8. a kind of Portable electric hydraulic jack according to claim 3, 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 with the first logical hydraulic fluid port (27) and seals the first logical hydraulic fluid port (27).
9. a kind of Portable electric hydraulic jack according to claim 3, 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 ends and spring (93) offset, other end closed valve (91) inner chamber.
10. a kind of Portable electric hydraulic jack according to claim 3 is characterized in that: the centre of sliding shoe (3) is provided with the O type circle (32) for sealing the first cavity (20) and the second cavity (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210009445 CN102556887B (en) | 2012-01-13 | 2012-01-13 | Portable electric hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210009445 CN102556887B (en) | 2012-01-13 | 2012-01-13 | Portable electric hydraulic jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102556887A CN102556887A (en) | 2012-07-11 |
| CN102556887B true CN102556887B (en) | 2013-11-06 |
Family
ID=46403740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210009445 Active CN102556887B (en) | 2012-01-13 | 2012-01-13 | Portable electric hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102556887B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104858777A (en) * | 2015-05-19 | 2015-08-26 | 朱德金 | Electric supporter for shot blasting machine |
| CN106348198A (en) * | 2016-08-29 | 2017-01-25 | 凯迈（洛阳）测控有限公司 | Jack and plunger pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6199379B1 (en) * | 1999-10-01 | 2001-03-13 | Mvp (H.K.) Industries Limited | Oil circuit of a jack for rising object to preset position rapidly |
| CN101537991A (en) * | 2009-04-09 | 2009-09-23 | 陈华军 | Dual-use hydraulic electric jack |
| CN201495071U (en) * | 2009-07-10 | 2010-06-02 | 福州斯耐特机械设备有限公司 | Pneumatic hydraulic jack |
| CN201574063U (en) * | 2009-12-28 | 2010-09-08 | 夏博文 | Portable multipurpose hydraulic jack |
| CN202465170U (en) * | 2012-01-13 | 2012-10-03 | 温岭市鑫磊空压机有限公司 | Portable electric hydraulic jack |
-
2012
- 2012-01-13 CN CN 201210009445 patent/CN102556887B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6199379B1 (en) * | 1999-10-01 | 2001-03-13 | Mvp (H.K.) Industries Limited | Oil circuit of a jack for rising object to preset position rapidly |
| CN101537991A (en) * | 2009-04-09 | 2009-09-23 | 陈华军 | Dual-use hydraulic electric jack |
| CN201495071U (en) * | 2009-07-10 | 2010-06-02 | 福州斯耐特机械设备有限公司 | Pneumatic hydraulic jack |
| CN201574063U (en) * | 2009-12-28 | 2010-09-08 | 夏博文 | Portable multipurpose hydraulic jack |
| CN202465170U (en) * | 2012-01-13 | 2012-10-03 | 温岭市鑫磊空压机有限公司 | Portable electric hydraulic jack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102556887A (en) | 2012-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102556884B (en) | Portable dual-purpose hydraulic jack for vehicles | |
| CN203441509U (en) | Novel large-flow hydraulic control one-way valve | |
| CN201031829Y (en) | Compound oil cylinder cylinder rod operation gear changes | |
| CN102530767B (en) | Valve integrated oil pump device of electric hydraulic jack | |
| CN102556887B (en) | Portable electric hydraulic jack | |
| CN202465173U (en) | Portable vehicle double-purpose electric hydraulic jack | |
| CN202465170U (en) | Portable electric hydraulic jack | |
| CN102092655B (en) | Power-driven hydraulic jack provided with load power-off protective device | |
| CN202465176U (en) | Oil pump device integrated with valve body for electric hydraulic jack | |
| CN202832603U (en) | Novel medium-flux hydraulic control one-way valve | |
| CN201971586U (en) | Electrohydraulic jack for vehicles | |
| CN202001237U (en) | Hydraulic manual pump for lifting truck cab | |
| CN103267003B (en) | Manual variable double-piston pump | |
| CN201971591U (en) | Overload protection electrohydraulic jack for vehicles | |
| CN201666237U (en) | Treadle type hydraulic pump | |
| CN202203200U (en) | Lowering valve of hydraulic distributor | |
| CN202038835U (en) | Electro-hydraulic jack device | |
| CN102092654B (en) | Electric hydraulic jack device | |
| CN204163974U (en) | Plunger pump | |
| CN201954239U (en) | Lubricating device with self inflation pneumatic tyre pressure oil tank | |
| CN201671804U (en) | Automatic variable high-pressure emulsion pump for coal mine | |
| CN102556886B (en) | Electro-hydraulic jack having device capable of preventing resistance to drop-down | |
| CN202465177U (en) | Electro-hydraulic jack with descending blocking prevention device | |
| CN202203201U (en) | Hydraulic distributor | |
| CN201925699U (en) | Lubricating device with self-inflating air chamber pressure oil tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| CP01 | Change in the name or title of a patent holder |
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. |
|
| CP01 | Change in the name or title of a patent holder |