CN2356019Y - Horizontal hydraulic jack - Google Patents
Horizontal hydraulic jack Download PDFInfo
- Publication number
- CN2356019Y CN2356019Y CN 98246411 CN98246411U CN2356019Y CN 2356019 Y CN2356019 Y CN 2356019Y CN 98246411 CN98246411 CN 98246411 CN 98246411 U CN98246411 U CN 98246411U CN 2356019 Y CN2356019 Y CN 2356019Y
- Authority
- CN
- China
- Prior art keywords
- cylinder
- oil
- oil cylinder
- piston rod
- jack
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a horizontal hydraulic jack which can be rapidly lifted in zero loading. The utility model is provided with support brackets on two sides, a pump cylinder, an oil tank, an oil cylinder, a piston rod, a pressure release switch, a rocking arm, a pulling rod and a top plate. The oil cylinder is designed into an inner oil cylinder with an outer oil cylinder and a hollow cavity. The back part of a piston rod arranged into the outer oil cylinder is provided with an inner cavity forming a blind-hole shape. The inner oil cylinder is fixed on the back base of the jack and positioned into the inner cavity of the piston rod. The back end of the inner oil cylinder is connected with an oil path communicated with the pump cylinder. The jack can be used for hoisting the weight and can be rapidly lifted in the zero loading.
Description
The utility model belongs to jack.
The horizontal hydraulic jack is to promote the piston rod reach through pump pressure liquid oil to high-voltage oil cavity, pushes rocking arm and raises up, and makes lifting and pushes up and lift heavy thing.Arrive at weight taking over a business to begin to be raised to, one section idle path is arranged.Existing horizontal hydraulic jack no matter unloaded and heavy duty promotes the piston rod reach through pump pressure liquid oil, all is the overcoat oil cylinders that charge into piston rod through pressure oil, the reach of promotion piston rod.Because this oil cylinder cross section is much larger than the cross section of input pumping cylinder, so jack when zero load, the speed of advancement of piston rod is also very slow.The pump pressure oil cylinder is finished the idle path of jack so repeatedly, and is not only time-consuming but also require great effort.
The purpose of this utility model is to provide for overcoming above-mentioned defective that a kind of take over a business when unloaded can zooming horizontal hydraulic jack.
The technical solution of the utility model horizontal hydraulic jack is to be provided with both sides supporting plate and pumping cylinder, fuel tank, oil cylinder, piston rod, release of pressure switch, rocking arm, pull bar and to take over a business, its special character is the inner cylinder that said oil cylinder is set to have an outer oil cylinder and a tubulose tool cavity, place outer its rear portion of in-oil cylinder piston rod to be provided with a blind hole type inner cavity, inner cylinder is fixed in jack back seat and position within piston rod in the chamber, and the inner cylinder rear end is connected with oil circuit and runs through pumping cylinder.
The utility model horizontal hydraulic jack is owing to be provided with an outer oil cylinder and an inner cylinder, the inner cylinder rear end is connected with oil circuit and runs through pumping cylinder and inner cylinder position in the inner chamber of piston rod, so when jack is unloaded, press pumping cylinder, liquid oil in the fuel tank can be pressed into the cavity of inner cylinder, inner cylinder places the inner chamber of piston rod, the liquid oil that is pressed into will push the piston rod reach, meanwhile, and the oil cylinder outside check valve is sucked automatically of the liquid oil meeting in the suction function lower fuel tank.Because the cavity of inner cylinder and piston rod cavity section be much smaller than outer oil cylinder cross section, thus piston rod can move forward fast, push rocking arm and join to take over a business fast rise, finish idle path.When jack takes over a business to arrive at weight, continue to press pumping cylinder, inside and outside oil cylinder and the oil pressure that is connected in the oil circuit rise, and back down release of pressure switch front springs institute top check valve, and pressure oil is pumped to outer oil cylinder, continues to promote the piston rod reach, the jack-up weight.
Below in conjunction with description of drawings embodiment of the present utility model.
Fig. 1 is the utility model horizontal hydraulic jack profile scheme drawing;
Fig. 2 is a shifting state local structure scheme drawing before this jack piston rod;
Fig. 3 is the another local structure scheme drawing of shifting state before this jack piston rod.
Mark and corresponding component are among the figure: 1 takes over a business, 2 supporting plates, 3 rocking arms, 4 pull bars, 5 piston rods, 6 fuel tanks, 7 pumping cylinders, 8 rocking bars, 9 outer oil cylinders, 10 inner cylinders, 11 inner chambers, 12 cavitys, 13 release of pressure switches, 14 springs, 15,16 oil circuits, 17 steel balls, 18-23 oil circuit, 24 reservoir compartments, 25 high-voltage oil cavities, 26 rocker sleeves.
The horizontal hydraulic jack of present embodiment, be provided with both sides supporting plate 2, the supporting plate rear portion is provided with manual pumping cylinder 7, the input piston upper end of pumping cylinder is connected with rocker sleeve 26 and wherein is inserted with rocking bar 8, the pumping cylinder front portion is provided with annular fuel tank 6 its inwalls and is configured to outer oil cylinder 9, be provided with piston rod 5 its front end pivots in the outer oil cylinder and be connected with rocking arm 3, rocking arm front end pivot is connected with its upper end of seat and is provided with 1, takes over a business a lower ending pivot and is connected with pull bar 4 pull bar other end pivots and is connected in supporting plate 2.Outer oil cylinder 9 is fixed in back seat with fuel tank 6.Outer oil cylinder inside is provided with inner cylinder 10 and is fixed in back seat.The piston rod rear portion offers blind hole type inner cavity 11 inner cylinders and places this inner chamber, and piston rod is placed in inner cylinder 10 with its inner chamber 11 and can moves forward and backward with respect to the inner cylinder oil seal type.Inner cylinder 10 tool cavity 12 and rear end is connected with oil circuit 20,16 in succession and runs through pumping cylinder 7 in it for tubulose.Said back seat is provided with top, this steel ball front of steel ball that release of pressure switch 13 its front end overheads act as check valve and is provided with spring 14 and is positioned at oil circuit 15, and spring front end overhead has the steel ball 17 that act as check valve.24 rear portions, reservoir compartment of fuel tank are connected with oil suction line 19 and lead in pumping cylinder 7 and be connected with oil return circuit 23.The high-voltage oil cavity rear portion is connected with oil suction line 21 and pump oil oil circuit 22.
The principle of work of this jack is: when 1. unloaded, press rocking bar 8 pump oil, liquid oil phase in the fuel tank cavity 12 that is pressed into inner cylinder through oil circuit 19,16,20 that continues is pressed into piston rod cavity 11 then, promotion piston rod 5 reach fast makes rocking arm 3 and takes over a business 1 fast rise and finish idle path, and meanwhile the liquid oil in the suction function lower fuel tank is sucked oil pocket 25 automatically; 2. after jack arrives at weight, continue to press rocking bar 8 pump oil, inner cylinder cavity 12 and the oil pressure that is connected in the oil circuit 20,18 increase, and back down steel ball 17, and pressure oil is pumped to high-voltage oil cavity 25 through oil circuit 15,22, promote piston rod reach jack-up weight; 3. after finishing the act of weight top, open release of pressure switch 13, liquid oil is back to fuel tank 6 through oil circuit 18,15,22,23 in the inside and outside oil cylinder.
Claims (1)
1, horizontal hydraulic jack, be provided with both sides supporting plate (2) and pumping cylinder (7), fuel tank (6), oil cylinder, piston rod (5), release of pressure switch (13), rocking arm (3), pull bar (4) and take over a business (1), it is characterized in that said oil cylinder is set to have the inner cylinder (10) of an outer oil cylinder (9) and a tubulose tool cavity (12), place outer its rear portion of in-oil cylinder piston rod (5) to be provided with a blind hole type inner cavity (11), inner cylinder (10) is fixed in jack back seat and position within piston rod in chamber (11), and the inner cylinder rear end is connected with oil circuit and runs through pumping cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98246411 CN2356019Y (en) | 1998-11-12 | 1998-11-12 | Horizontal hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98246411 CN2356019Y (en) | 1998-11-12 | 1998-11-12 | Horizontal hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2356019Y true CN2356019Y (en) | 1999-12-29 |
Family
ID=33991881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98246411 Expired - Fee Related CN2356019Y (en) | 1998-11-12 | 1998-11-12 | Horizontal hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2356019Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318290C (en) * | 2001-05-02 | 2007-05-30 | 河泰洪 | Hydraulic jack |
| US20150210518A1 (en) * | 2014-01-27 | 2015-07-30 | Chung-Yi Yang | Anti-overpressure double-acting threaded jack |
| CN104875001A (en) * | 2015-06-09 | 2015-09-02 | 江西铜业股份有限公司 | Main speed reducer assembly assembling and disassembling trolley |
-
1998
- 1998-11-12 CN CN 98246411 patent/CN2356019Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318290C (en) * | 2001-05-02 | 2007-05-30 | 河泰洪 | Hydraulic jack |
| US20150210518A1 (en) * | 2014-01-27 | 2015-07-30 | Chung-Yi Yang | Anti-overpressure double-acting threaded jack |
| CN104875001A (en) * | 2015-06-09 | 2015-09-02 | 江西铜业股份有限公司 | Main speed reducer assembly assembling and disassembling trolley |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |