WO2017045353A1 - 液压千斤顶 - Google Patents
液压千斤顶 Download PDFInfo
- Publication number
- WO2017045353A1 WO2017045353A1 PCT/CN2016/073911 CN2016073911W WO2017045353A1 WO 2017045353 A1 WO2017045353 A1 WO 2017045353A1 CN 2016073911 W CN2016073911 W CN 2016073911W WO 2017045353 A1 WO2017045353 A1 WO 2017045353A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oil
- pipe
- inlet pipe
- oil inlet
- hydraulic jack
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/32—Constructional features with means for avoiding excessive shocks on completion of movements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
- F16K11/0856—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug having all the connecting conduits situated in more than one plane perpendicular to the axis of the plug
Definitions
- Embodiments of the invention relate to a hydraulic jack.
- the jack is a light lifting device that uses a steel lifting member to lift heavy objects in the stroke through the top bracket.
- the more common jacks have mechanical jacks and hydraulic jacks.
- the embodiment of the invention provides a hydraulic jack including an oil cylinder, an oil pool and an oil storage barrel, wherein the oil storage barrel includes opposite front and rear portions, and the oil outlet of the oil cylinder passes through the oil inlet pipe and the oil storage barrel
- the front oil inlet is connected, and the oil inlet of the oil pool is connected to the oil outlet of the front portion of the oil storage barrel through an oil outlet pipe, and the oil inlet pipe and the oil discharge pipe are respectively provided with a guide a switch valve of the oil inlet pipe and the oil discharge pipe; a partition plate and an elastically retractable member disposed in the oil storage barrel, the partition plate being in the storage wall along the barrel wall of the oil storage barrel Moving between the front portion and the rear portion of the oil drum, the inner space of the oil storage tub is divided into a front space and a rear space on opposite sides of the partition, the front space and The oil inlet pipe and the oil discharge pipe are in communication, the front space and the rear space are not in communication with each other, and the partition is connected to the oil storage by
- the oil inlet pipe includes a first oil inlet pipe and a second oil inlet pipe
- the oil delivery pipe includes a first oil outlet pipe and a second oil delivery pipe, and one end of the first oil inlet pipe and the oil storage barrel a front oil inlet is connected, one end of the first oil pipe is connected to an oil outlet of a front portion of the oil storage barrel, and one end of the second oil inlet pipe is connected to an oil outlet of the oil cylinder.
- One end of the second oil outlet is connected to the oil inlet of the oil pool;
- the switching valve is located between the first oil inlet pipe and the second oil inlet pipe, and is located at the first oil outlet pipe and the Between the second oil pipe.
- the switching valve includes a rotatable member, and the first oil inlet pipe, the first oil delivery pipe, the second oil inlet pipe, and the second oil delivery pipe are all attached to the rotatable member
- the rotatable member is provided with a first through hole and a second through hole extending through the rotatable member, and a straight extending direction of the first through hole is not parallel or intersected with a straight line extending direction of the second through hole;
- the first perforation communicates with the first oil inlet pipe and the second oil inlet pipe, the first oil outlet pipe and the second oil delivery pipe are not electrically connected, and the second perforation communicates with the second perforation
- the first oil inlet pipe and the second oil inlet pipe are not electrically connected.
- the direction in which the first perforations extend is perpendicular to the direction in which the second perforations extend.
- the side of the rotatable member is a cylindrical surface
- the first oil inlet pipe, the first oil delivery pipe, the second oil inlet pipe, and the second oil delivery pipe are both rotatable members The sides are fitted together.
- At least one of the bottom surfaces of the rotatable member is provided with a handle.
- the telescoping member is a spring having one end connected to the rear of the oil storage tub and the other end connected to the partition.
- the switching valve further includes a protective body that is encapsulated in the protective body.
- the hydraulic jack further includes a return valve, one end of the oil return valve is connected to the oil outlet of the oil cylinder, and the other end is connected to the oil inlet of the oil pool.
- FIG. 1 is a schematic structural view of a hydraulic jack according to an embodiment of the present invention.
- FIG. 2 is a schematic structural view of an oil storage barrel according to an embodiment of the present invention.
- FIG. 3 is a schematic structural view of an oil inlet pipe, an oil outlet pipe, an on-off valve, and an oil storage barrel according to an embodiment of the present invention
- FIG. 4 is a schematic structural view of an on-off valve according to an embodiment of the present invention.
- Figure 5 is a cross-sectional view showing an on-off valve in accordance with an embodiment of the present invention.
- the hydraulic jack is filled with hydraulic oil, and the pressure of the hydraulic oil is used to control the lifting of the hydraulic jack.
- the hydraulic jack is equipped with a return valve in the return line, and the hydraulic oil of the return valve is opened to return to the oil pool for storing the hydraulic oil in the hydraulic jack, so that the front seat of the hydraulic jack is lowered.
- the inventor has found that the oil return valve of the hydraulic jack in the related art needs to be manually controlled by an operator, and it is difficult for the operator to control the degree of switching and the switching time of the oil return valve, and it is likely that the front seat of the hydraulic jack rapidly drops. The situation poses a risk to the operator and the weight placed in the front bracket.
- Embodiments of the present invention provide a hydraulic jack that avoids the rapid drop of the front bracket of the hydraulic jack, thereby reducing the risk to the operator of the hydraulic jack and the weight in the front bracket.
- an embodiment of the present invention provides a hydraulic jack including a cylinder 10, an oil pool 11, and an oil storage tank 13.
- the oil storage tub 13 includes opposing front portions F and rear portions B.
- the oil outlet 101 of the oil cylinder 10 is connected to the oil inlet 131 of the front portion F of the oil storage tank 13 through the oil inlet pipe 12, and the oil inlet port 111 of the oil pool 11 passes through the oil outlet pipe 14 and the front portion F of the oil storage tank 13.
- the port 132 is connected.
- the inlet pipe 12 and the oil delivery pipe 14 are provided with an on-off valve 15 for selectively connecting the inlet pipe 12 and the outlet pipe 14;
- the oil storage tank 13 is provided with a partition 16 movable along the wall W of the oil storage tank 13 and
- the elastically retractable member 17 is located between the partition 16 and the rear portion B of the oil storage tub 13.
- the partition 16 is movable between the front portion F and the rear portion B of the oil storage tub 13 along the wall W of the oil storage tub.
- the internal space of the oil storage tub 13 communicates with the outside thereof only through the oil inlet 131 and the oil outlet 132 of the front portion F, for example.
- the internal space of the oil storage tub 13 is divided into a front space FS and a rear space BS on opposite sides of the partition.
- the front space FS is in communication with the oil inlet pipe 12 and the oil delivery pipe 14.
- the front space FS and the rear space BS are not in communication with each other.
- the partition 16 is connected to the rear portion B of the oil storage tub 13 by the telescopic member 17 located in the rear space BS.
- the switching valve 15 controls the inlet pipe 12 to open, the hydraulic oil enters the oil storage tub 13.
- the hydraulic oil pushes the partition 16 in the oil storage tank 13, and the partition 16 is pressed.
- the telescopic member 17 causes the telescopic member 17 to generate an elastic force until the hydraulic pressure of the hydraulic oil entering the oil storage tub 13 is balanced with the elastic force generated by the telescopic member 17, and the hydraulic oil cannot continue to enter the oil storage tub 13
- the on-off valve 15 disposed on the oil inlet pipe 12 controls the inlet pipe 12 to be closed; Then, for example, the on-off valve 15 provided on the oil discharge pipe 14 controls the outlet oil pipe 14 to open, the retractable member 17 rebounds, and pushes the partition plate 16 to press the hydraulic oil in the oil storage tub 13 through the oil discharge pipe 14 out of the oil storage tub 13
- the oil pipe 11 is returned to the oil pool 11 of the hydraulic jack through the oil outlet pipe 14, so that the hydraulic oil can be recycled. Since the amount of
- the oil cylinder 10 and the oil pool 11 are respectively connected to the oil storage barrel 13 through the oil inlet pipe 12 and the oil discharge pipe 14, and the oil storage barrel 13 is provided with a partition 16 movable along the wall of the barrel, and The retractable member 17 between the partition 16 and the rear portion of the oil storage tub 13 is provided with an on-off valve 15 for controlling the inlet or outlet 14 of the oil feed pipe 12 and the oil discharge pipe 14, respectively.
- the valve 15 Opening the oil inlet pipe 12, so that the hydraulic oil enters the oil storage tub 13 until the hydraulic pressure of the hydraulic oil entering the oil storage tub 13 is balanced with the elastic force of the telescopic member 17 in the oil storage tub 13; or the operation switch
- the valve 15 opens the oil outlet pipe 14 such that the telescopic member 17 in the oil storage tub 13 pushes the partition plate 16 to squeeze hydraulic oil out of the oil storage tub 13; in the related art, the degree of switching and the switching time are manually controlled.
- the amount of hydraulic oil that is balanced with the elastic force of the telescopic member 17 in each of the oil storage tubs 13 is constant, so that the top bracket of the hydraulic jack is lowered.
- the speed is slowed down, avoiding the rapid drop of the top bracket of the hydraulic jack, thereby reducing the risk to the operator of the hydraulic jack and the weight in the top bracket.
- the oil inlet pipe 12 includes a first oil inlet pipe 18 and a second oil inlet pipe 19
- the oil delivery pipe 14 includes a first oil delivery pipe 20
- the second oil delivery pipe 21 has one end connected to the oil inlet 131 of the front portion of the oil storage tank 13 and the other end of which is airtightly connected to the switching valve 15.
- the front oil outlet 132 is connected, the other end is airtightly connected to the switching valve 15, the second oil inlet pipe 19 is connected to the oil outlet 101 of the cylinder 10, and the other end is airtightly connected to the switching valve 15, and the second end is One end of the oil port is connected to the oil inlet 111 of the oil pool 11, and the other end is airtightly connected to the switching valve 15;
- the switching valve 15 for selectively connecting the oil inlet pipe 12 and the oil outlet pipe 14 is located at the first oil inlet pipe 18 and the first Two Between the oil inlet pipes 19 and between the first oil discharge pipe 20 and the second oil discharge pipe 21.
- opening the oil inlet pipe 12 is to guide the first oil inlet pipe 18 and the second oil inlet pipe 19; opening the oil outlet pipe 14 is to guide the first oil outlet pipe 20 and the second oil outlet pipe 21.
- the switching valve 15 is selectively connected to the oil inlet pipe 12 and the oil delivery pipe 14 to mean that the switching valve 15 closes the oil outlet pipe 14 when the oil inlet pipe 12 is opened, and closes the oil inlet pipe 15 when the oil outlet pipe 14 is opened.
- the on-off valve 15 includes, for example, a rotatable member 22 between the first inlet pipe 18 and the second inlet pipe 19 and A rotatable member is interposed between the first oil discharge pipe 20 and the second oil discharge pipe 21.
- the side surface K of the rotatable member 22 is, for example, a cylindrical surface.
- the rotatable member 22 has a cylindrical outer shape.
- the first oil inlet pipe 18, the first oil delivery pipe 20, the second oil inlet pipe 19, and the second oil delivery pipe 21 are all in contact with the cylindrical side surface K of the rotatable member 22; in order to facilitate the operator to rotate the rotary member of the switching valve 15 22, at least one bottom surface of the rotatable member 22 is provided with a handle 23; the rotatable member 22 is provided with a first through hole 24 and a second through hole 25 penetrating the rotatable member 22, and the straight line extending direction of the first through hole 24 is second The straight lines extending in the direction of the perforations 25 are not parallel or intersect.
- the extending direction of the first through hole 24 is perpendicular to the extending direction of the second through hole 25; when the rotatable member 22 is rotated to a certain angle, the first through hole 24 communicates with the first oil inlet pipe 18 and the second oil inlet pipe 19
- the second through hole 25 does not communicate with any one of the first oil discharge pipe 20 and the second oil discharge pipe 21 so that the first oil discharge pipe 20 and the second oil discharge pipe 21 are not connected, and the hydraulic oil can pass through the second oil inlet pipe 19 from the oil cylinder 10 in turn.
- the first through hole 24 and the first oil inlet pipe 18 enter the oil storage tub 13; when the rotatable member 22 is rotated to another angle, the second through hole 25 communicates with the first oil discharge pipe 20 and the second oil discharge pipe 21 without the first through hole 24
- the first oil inlet pipe 18 and the second oil inlet pipe 19 are in communication with each of the first oil inlet pipe 18 and the second oil inlet pipe 19, so that the hydraulic oil can pass through the first oil discharge pipe 20 and the second oil from the oil storage tank 13 in sequence.
- the perforations 25 and the second oil discharge pipe 21 flow into the oil pool 11.
- the on-off valve 15 may also include a protective body 26.
- the rotatable member 22 can be enclosed in a protective body 26.
- the protective body 26 may have a solid structure or a hollow structure.
- the telescopic member 17 in the above embodiment may be, for example, a spring, one end of which is connected to the rear portion of the oil storage tub 13 and the other end is connected to the partition 16; when the first through hole 24 will be the first oil inlet pipe 18 and the second inlet When the oil pipe 19 is turned on, the first oil discharge pipe 20 and the second oil inlet pipe 19 are not turned on, the hydraulic oil enters the oil storage tank 13 and pushes the partition plate 16, and the partition plate 16 drives the spring connected to the partition plate 16, and the spring compresses to generate an elastic force.
- the hydraulic jack in the embodiment of the present invention may further include a return valve 27 .
- One end of the oil return valve 27 is connected to the oil outlet 101 of the oil cylinder 10 , and the other end is connected to the oil inlet 111 of the oil pool 11 .
- the oil return valve 27 In the normal state (for example, in the case where the front bracket S of the hydraulic jack is not required to be rapidly lowered), the oil return valve 27 is closed, and the oil outlet 101 of the cylinder 10 is not in communication with the oil inlet 111 of the oil pool 11, the cylinder 10
- the hydraulic oil in the oil tank enters the oil pool through the oil storage tank 13; when the top bracket S requiring the hydraulic jack drops rapidly, the oil return valve 27 is opened, and the oil outlet 101 of the oil cylinder 10 communicates with the oil inlet 111 of the oil pool 11
- the hydraulic oil in the cylinder 10 can directly enter the oil pool 11 via the oil return valve, thereby quickly releasing the hydraulic oil in the oil cylinder 10, thereby achieving a rapid drop of the top bracket of the hydraulic jack.
- the components that release the hydraulic oil in the cylinder 10 can be selected to flexibly select the descending mode of the hydraulic jack.
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- Types And Forms Of Lifts (AREA)
Abstract
Description
Claims (9)
- 一种液压千斤顶,包括油缸、油池和储油桶,其中,所述储油桶包括相对的前部和后部,所述油缸的出油口通过进油管与储油桶的前部的进油口连接,所述油池的进油口通过出油管与储油桶的前部的出油口连接,所述进油管和所述出油管上均设有用于择一导通所述进油管和所述出油管的开关阀;所述储油桶内设有隔板和具有弹性的可伸缩构件,所述隔板可沿所述储油桶的桶壁在所述储油桶的所述前部和所述后部之间移动,所述储油桶的内部空间被分成位于所述隔板的相反两侧的前部空间和后部空间,所述前部空间与所述进油管以及所述出油管连通,所述前部空间与所述后部空间彼此不连通,所述隔板通过位于所述后部空间中的所述可伸缩构件连接到所述储油桶的后部。
- 根据权利要求1所述的液压千斤顶,其中,所述进油管包括第一进油管和第二进油管,所述出油管包括第一出油管和第二出油管,所述第一进油管的一端与所述储油桶的前部的进油口连接,所述第一出油管的一端与所述储油桶的前部的出油口连接,所述第二进油管的一端与所述油缸的出油口连接,所述第二出油口的一端与所述油池的进油口连接;所述开关阀位于所述第一进油管与所述第二进油管之间,以及位于所述第一出油管与所述第二出油管之间。
- 根据权利要求2所述的液压千斤顶,其中,所述开关阀包括可转动构件,所述第一进油管、所述第一出油管、所述第二进油管与所述第二出油管均与所述可转动构件相贴合;所述可转动构件设有贯穿所述可转动构件第一穿孔和第二穿孔,且所述第一穿孔的直线延伸方向与第二穿孔的直线延伸方向不平行也不相交;在所述第一穿孔连通所述第一进油管和所述第二进油管的情况下,所述第一出油管和所述第二出油管不导通,在所述第二穿孔连通所述第一出油管和所述第二出油管的情况下,所述第一进油管和所述第二进油管不导通。
- 根据权利要求3所述的液压千斤顶,其中,所述第一穿孔的延伸方向与所述第二穿孔的延伸方向相互垂直。
- 根据权利要求3所述的液压千斤顶,其中,所述可转动构件的侧面 为圆柱面,所述第一进油管、所述第一出油管、所述第二进油管与所述第二出油管均与所述可转动构件的侧面相贴合。
- 根据权利要求5所述的液压千斤顶,其中,所述可转动构件的至少一个底面上设置有把手。
- 根据权利要求1所述的液压千斤顶,其中,所述可伸缩构件为弹簧,所述弹簧的一端与所述储油桶的后部相连,另一端与所述隔板相连。
- 根据权利要求3至6中任意一项所述的液压千斤顶,其中,所述开关阀包括保护体,所述可转动构件封装在所述保护体中。
- 根据权利要求1至8中任一项所述的液压千斤顶,还包括回油阀门,所述回油阀门一端连接所述油缸的出油口,另一端连接所述油池的进油口。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US15/531,798 US9926177B2 (en) | 2015-09-17 | 2016-02-17 | Hydraulic jack |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201510595694.2 | 2015-09-17 | ||
CN201510595694.2A CN105110231B (zh) | 2015-09-17 | 2015-09-17 | 一种液压千斤顶 |
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WO2017045353A1 true WO2017045353A1 (zh) | 2017-03-23 |
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PCT/CN2016/073911 WO2017045353A1 (zh) | 2015-09-17 | 2016-02-17 | 液压千斤顶 |
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US (1) | US9926177B2 (zh) |
CN (1) | CN105110231B (zh) |
WO (1) | WO2017045353A1 (zh) |
Families Citing this family (2)
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CN105110231B (zh) | 2015-09-17 | 2017-08-29 | 京东方科技集团股份有限公司 | 一种液压千斤顶 |
CN108059106A (zh) * | 2017-12-18 | 2018-05-22 | 江苏海事职业技术学院 | 一种船舶柴油机的液压传动装置 |
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- 2016-02-17 WO PCT/CN2016/073911 patent/WO2017045353A1/zh active Application Filing
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CN105110231A (zh) * | 2015-09-17 | 2015-12-02 | 京东方科技集团股份有限公司 | 一种液压千斤顶 |
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US20170327358A1 (en) | 2017-11-16 |
US9926177B2 (en) | 2018-03-27 |
CN105110231B (zh) | 2017-08-29 |
CN105110231A (zh) | 2015-12-02 |
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