WO2016112607A1

WO2016112607A1 - Combined type light lifting apparatus and method for using same

Info

Publication number: WO2016112607A1
Application number: PCT/CN2015/078835
Authority: WO
Inventors: 叶欣
Original assignee: 叶欣
Priority date: 2015-01-14
Filing date: 2015-05-13
Publication date: 2016-07-21
Also published as: CN104709846A; CN104709846B

Abstract

Disclosed are a combined type light lifting apparatus and a method for using same. The combined type lifting apparatus comprises four lifting machines, a hydraulic system and a control device. The lifting machines are provided with inverted oil pumps and are symmetrically placed at the four corners to form a rectangle. Hydraulic oil cylinders (23) of the lifting machine oil pumps are connected to the hydraulic system, and the hydraulic system is electrically connected to the control device. The combined type lifting apparatus adopts a split structure and is convenient to transport, field assembly is facilitated, the oil pumps can be examined conveniently, and parts can be replaced conveniently, and an operator can move the combined type lifting apparatus conveniently; the combined type lifting apparatus is simple in structure, small in size and flexible and convenient to use.

Description

Lightweight combined lifting device and using method thereof

Technical field

The invention relates to a lightweight combined lifting device and a method of using same.

Background technique

At present, the lifts used in the maintenance industry mainly use fixed lifts, which are inconvenient to move and cannot be effectively solved for some special occasions. At present, mobile lifts are mainly mechanical or hydraulic jacks. The mechanical jack is inflexible and inconvenient to handle; the hydraulic jack is easy to use and has a wide application range. The existing jack lifting height is between 10-30cm, which can not meet the needs of use. Moreover, the existing lifts are installed by the erecting oil pump, and the chain is used as the transmission to drive the heavy objects to lift, which increases the mechanical structure, increases the overall weight, and increases the transmission force. Consumption.

Summary of the invention

To overcome the deficiencies of the prior art, it is an object of the present invention to provide a lightweight combined lifting apparatus and method of use thereof.

To achieve the above object, the present invention is achieved by the following technical solutions:

A portable combined lifting device, comprising four lifts, a hydraulic system and a control device, wherein the lift is a lift of an inverted oil pump, and the lift is symmetrically placed at four corners, Forming a rectangle, the hydraulic cylinder of the lift oil pump is connected to the hydraulic system, and the hydraulic system is electrically connected to the control device.

The lift comprises a gantry, a load-bearing mechanism, a support leg and an oil pump. The bottom of the gantry is vertically fixed at one end of the support leg, and forms an L-shaped shape with the support leg. The upper part of the gantry is fixed with an oil pump, and the central axis and the door of the oil pump The central axis of the frame is coincident, the oil pump comprises a valve core and a sliding sleeve, and the connecting ends are fixed on both sides of the sliding sleeve, and the connecting end is fixedly connected with the top of the door frame, and the valve core is located at the lower part of the sliding sleeve and between the door frames, forming an inverted The oil pump has a fixed end connected to the load-bearing mechanism, and the sliding sleeve is further provided with a hydraulic oil hole, and the oil pump is at least one section.

The oil pump can also be fixedly fixed on the door frame, and the top of the door frame is provided with a locking device, and both sides of the oil pump sliding sleeve are fixed on the door frame by the locking device.

The locking device is an upwardly upward groove, and the groove is located on an inner wall of the opposite side of the gantry. The outer wall of the gantry is further provided with a bolt hole communicating with the groove, and the bolt hole is provided with a bolt. The connecting ends on both sides of the oil pump sleeve can be placed in the groove and fastened to the door frame by bolts.

The locking device is a U-shaped groove that is open to the side, and a bolt hole is arranged at the top of the door frame, and bolts are arranged in the bolt hole, and the connecting ends of the oil pump sliding sleeve can slide into the U-shaped groove in the horizontal direction. And limit by bolt.

The hydraulic oil hole may be located on the side wall of the sliding sleeve or the bottom of the sliding sleeve, and the oil pump may be a single tube oil pump or a double tube oil pump; the valve core and the load bearing mechanism are fixedly connected with a fixing seat, and the fixing seat passes the safety pin and the door frame. Plug in.

The utility model further comprises a walking wheel, wherein the walking wheel is arranged at a bottom of one side of the gantry and the supporting leg, and the bottom of the walking wheel is on the same horizontal line as the bottom of the supporting leg, the load-bearing mechanism comprises a bracket and a limiting tooth, and the bracket is connected with the oil pump. The limit tooth end is fixedly connected to the bracket.

The load-bearing mechanism comprises a bracket, a supporting bracket and a supporting pad, and the bracket is connected with the oil pump, the supporting tooth has a supporting tooth adjusting hole at one end, and the supporting pad adjusting hole at the other end, the supporting tooth and the bracket pass the positioning pin and the supporting bracket The tooth adjustment hole is fixedly connected, and the other end of the tooth is connected with the support pad through a thread and a pad adjustment hole.

Also included is a carrier that includes a lifting plate and a leg, the top of the leg being secured to a central axis position below the lifting plate, the lifting frame being located below the load bearing mechanism.

A method for using a lightweight combined lifting device, comprising the four inverted hydraulic movable lifts according to claim 1, wherein the lifting machines are placed in parallel in a group, and the two groups of the same group The lifts are placed opposite each other, so that the four load-bearing mechanisms form four support points, and the four lifts are respectively connected to the hydraulic control device through the pipeline, and the hydraulic control device is turned on. When the spools of the four oil pumps are synchronously extended downward, The load-bearing mechanism moves down, thereby driving the upper load to move downward. When the spools of the four oil pumps are simultaneously retracted upward, the load-bearing mechanism moves up, thereby pushing the upper load upward, and when lifting to the top, A safety pin is inserted into the fixed seat at the bottom of the load-bearing mechanism, and the fixed load-bearing mechanism prevents the sliding.

Compared with the prior art, the beneficial effects of the present invention are:

The split structure is convenient for transportation, does not occupy space, and is convenient for on-site assembly. The oil pump and the door frame are separated to realize separate transportation and temporary assembly. At the same time, it is also convenient for repairing the oil pump and also for replacing parts. The oil pump is used for lifting, and the lift is raised to a certain height, which is convenient for the operator to move, saving time and effort. The overall structure is simple, small in size, flexible and convenient to use. The gantry is used to support the oil pump to make the pump more evenly loaded. The support has a walking wheel, and the walking wheel is only provided with one set, which does not affect the fixing of the bracket. When it is necessary to move, the inclined bracket can use the walking wheel for convenient movement.

DRAWINGS

Figure 1 is a plan view of the present invention.

Figure 2 is a front elevational view of the hydraulically movable lift.

Figure 3 is a right side view of the hydraulically movable lift.

Figure 4 is a top plan view of a hydraulically movable lift.

Figure 5 is a schematic view showing the structure of the load-bearing mechanism.

Figure 6 is a schematic view showing the structure of the load-bearing mechanism.

Figure 7 is a schematic view showing the structure of the load-bearing mechanism.

Figure 8 is a hydraulic schematic.

In the figure: 1-support leg 2-door frame 3-valve 4-sleeve 5-handle 6-load-bearing mechanism 7-wheel 10-tooth 11-bearing pad 12-pad adjustment hole 13-limit tooth 14 - bracket 15-tooth adjustment hole 16-safety pin 17-fixing seat 18-first balancing valve 19-second balancing valve 20-third balancing valve 21-fourth balancing valve 22-electromagnetic reversing valve 23-hydraulic Cylinder 24 lifting bracket.

detailed description

The present invention is described in detail below with reference to the accompanying drawings in which Figures 1-7, but it should be noted that the implementation of the present invention is not limited to the following embodiments.

Example 1:

A portable combined lifting device comprising four lifts, a hydraulic system and a control device, the lift is a lift of an inverted oil pump, and the lift is placed symmetrically on the four corners to form a rectangle The hydraulic cylinder of the lift oil pump is connected with the hydraulic system, and the hydraulic system is electrically connected with the control device. The lift comprises a door frame, a load-bearing mechanism, a support leg and an oil pump, and the bottom of the door frame is vertically fixed at one end of the support leg, and The support leg is formed in an L shape, and an oil pump is fixed on an upper portion of the gantry. The central axis of the oil pump coincides with a central axis of the gantry. The oil pump includes a valve core and a sliding sleeve, and the connecting end is fixed on both sides of the sliding sleeve, and the connecting end and the door are connected The top of the frame is fixedly connected, and the valve core is located at the lower part of the sliding sleeve and between the door frames to form an inverted oil pump. The end of the valve core is fixedly connected with the load-bearing mechanism, and the sliding sleeve is further provided with a hydraulic oil hole, and the oil pump is at least one. Section.

The oil pump can also be fixedly fixed on the door frame, and the top of the door frame is provided with a locking device, and both sides of the oil pump sliding sleeve are fixed on the door frame by a locking device, and the locking device is an opening An upward groove, the groove is located on an inner wall of the opposite side of the gantry, and a bolt hole communicating with the groove is further disposed on the outer wall of the gantry, the bolt hole is provided with a bolt, and the connecting end of the oil pump sliding sleeve is connected It can be placed in the groove and fastened to the gantry by bolts.

The hydraulic system further includes a balancing valve group, the balancing valve group includes a plurality of balancing valves, and the hydraulic cylinders of the lifting machine are two in a group, one end is connected with the first balancing valve, and the other end is connected with the second balancing valve, two The first balancing valve is in turn connected to a third balancing valve, which in turn is connected to a fourth balancing valve, and the third balancing valve and the fourth balancing valve are respectively connected to the electromagnetic reversing valve. One end of the electromagnetic reversing valve is connected to the one-way valve, the motor oil pump and the filter, and the other end is directly connected to the oil cylinder.

By using a balancing valve block and controlling the lift with the control unit, the oil pumps of the four lifts can be lifted or lowered simultaneously.

Further included is a lifting frame that includes a lifting plate and a leg, the top of the leg being fixed at a central axis position below the lifting plate, the lifting frame being located below the load bearing mechanism. The lifting plate can play the role of the second heavy support. When the lifting device lifts the heavy object, it needs to last for a period of time. In order to prevent the lifting device from falling suddenly, the load-bearing machine Under the structure, there is a lifting frame, which can play the role of the second weight lifting and improve safety.

A method for using a lightweight combined lifting device, comprising the four inverted hydraulic movable lifts according to claim 1, wherein the lifting machines are placed in parallel in a group, and the two groups of the same group The lifts are placed opposite each other, so that the four load-bearing mechanisms form four support points, and the four lifts are respectively connected to the hydraulic control device through the pipeline, and the hydraulic control device is turned on. When the spools of the four oil pumps are synchronously extended downward, The load-bearing mechanism moves down, thereby driving the upper load to move downward. When the spools of the four oil pumps are simultaneously retracted upward, the load-bearing mechanism moves up, thereby pushing the upper load upward, and when lifting to the top, A safety pin is inserted into the fixed seat at the bottom of the load-bearing mechanism, and the fixed load-bearing mechanism prevents the sliding

Example 2:

The oil pump can also be fixedly fixed on the door frame, and the top of the door frame is provided with a locking device, and both sides of the oil pump sliding sleeve are fixed on the door frame by a locking device, and the locking device is one side To the open U-shaped groove, a bolt hole is arranged at the top of the gantry, and bolts are arranged in the bolt hole, and the connecting ends on both sides of the oil pump sliding sleeve can slide into the U-shaped groove in the horizontal direction and are restricted by bolts.

Example 3:

A portable combined lifting device comprising four lifts, a hydraulic system and a control device, the lift is a lift of an inverted oil pump, and the lift is placed symmetrically on the four corners to form a rectangle The hydraulic cylinder of the lift oil pump is connected with the hydraulic system, and the hydraulic system is electrically connected with the control device. The lift comprises a door frame, a load-bearing mechanism, a support leg and an oil pump, and the bottom of the door frame is vertically fixed at one end of the support leg, and The support leg is formed in an L shape, and an oil pump is fixed on an upper portion of the gantry. The central axis of the oil pump coincides with a central axis of the gantry. The oil pump includes a valve core and a sliding sleeve, and the connecting end is fixed on both sides of the sliding sleeve, and the connecting end and the door are connected The top of the frame is fixedly connected, and the valve core is located at the lower part of the sliding sleeve and between the door frames to form an inverted oil pump. The end of the valve core is fixedly connected with the load-bearing mechanism, and the sliding sleeve is further provided with a hydraulic oil hole, and the sliding sleeve is provided with There is a single hydraulic oil hole, which is a single-tube oil pump. The hydraulic oil hole can be located on the side wall of the sliding sleeve or at the bottom of the sliding sleeve. The oil pump is at least one section.

Example 4:

A lightweight combined lifting device comprising four lifts, a hydraulic system and a control device, the lift being inverted The lift of the oil pump, the lift is placed symmetrically on the four corners to form a rectangle, the hydraulic cylinder of the lift oil pump is connected with the hydraulic system, and the hydraulic system is electrically connected with the control device, the lift comprises a gantry, The load-bearing mechanism, the support leg and the oil pump, the bottom of the gantry is vertically fixed at one end of the support leg, forming an L shape with the support leg, and an oil pump is fixed on the upper part of the gantry, and the central axis of the oil pump coincides with the central axis of the gantry, the oil pump The utility model comprises a valve core and a sliding sleeve, wherein the sliding sleeve has a connecting end fixed on both sides thereof, and the connecting end is fixedly connected with the top of the gantry, the valve core is located at a lower part of the sliding sleeve and between the gantry, forming an inverted oil pump, a valve core end and a load-bearing mechanism a fixed connection, the sliding sleeve is further provided with a hydraulic oil hole, and the sliding sleeve is provided with two hydraulic oil holes, which are double-tube oil pumps, and the hydraulic oil holes may be located on the side wall of the sliding sleeve or the bottom of the sliding sleeve, The oil pump is at least one section.

Example 5:

A portable combined lifting device comprising four lifts, a hydraulic system and a control device, the lift is a lift of an inverted oil pump, and the lift is placed symmetrically on the four corners to form a rectangle The hydraulic cylinder of the lift oil pump is connected with the hydraulic system, and the hydraulic system is electrically connected with the control device. The lift comprises a door frame, a load-bearing mechanism, a support leg and an oil pump, and the bottom of the door frame is vertically fixed at one end of the support leg, and The support leg is formed in an L shape, and an oil pump is fixed on an upper portion of the gantry. The central axis of the oil pump coincides with a central axis of the gantry. The oil pump includes a valve core and a sliding sleeve, and the connecting end is fixed on both sides of the sliding sleeve, and the connecting end and the door are connected The top of the frame is fixedly connected, and the valve core is located at the lower part of the sliding sleeve and between the door frames to form an inverted oil pump. The end of the valve core is fixedly connected with the load-bearing mechanism, and the sliding sleeve is further provided with a hydraulic oil hole, and the oil pump is at least one. The load-bearing mechanism comprises a bracket and a limiting tooth, and the bracket is connected with the oil pump, and the limiting tooth end is fixedly connected with the bracket.

Example 6

A portable combined lifting device comprising four lifts, a hydraulic system and a control device, the lift is a lift of an inverted oil pump, and the lift is placed symmetrically on the four corners to form a rectangle The hydraulic cylinder of the lift oil pump is connected with the hydraulic system, and the hydraulic system is electrically connected with the control device. The lift comprises a door frame, a load-bearing mechanism, a support leg and an oil pump, and the bottom of the door frame is vertically fixed at one end of the support leg, and The support leg is formed in an L shape, and an oil pump is fixed on an upper portion of the gantry. The central axis of the oil pump coincides with a central axis of the gantry. The oil pump includes a valve core and a sliding sleeve, and the connecting end is fixed on both sides of the sliding sleeve, and the connecting end and the door are connected The top of the frame is fixedly connected, and the valve core is located at the lower part of the sliding sleeve and between the door frames to form an inverted oil pump. The end of the valve core is fixedly connected with the load-bearing mechanism, and the sliding sleeve is further provided with a hydraulic oil hole, and the oil pump is at least one. The load-bearing mechanism comprises a bracket, a supporting bracket and a supporting pad, and the bracket is connected with the oil pump, the supporting tooth has a supporting tooth adjusting hole at one end, and the supporting pad adjusting hole at the other end, and the supporting tooth and the bracket pass the positioning pin Tooth tone The joint hole is fixedly connected, and the other end of the tooth is connected with the support pad through a thread and a pad adjustment hole.

Further, the connecting portion of the valve core and the load-bearing mechanism is fixedly connected with a fixing seat, and the fixing seat is inserted into the door frame through the safety pin.

Further, the door frame is provided with a handle.

Further, the utility model further comprises a walking wheel, wherein the walking wheel is disposed at a bottom of one side of the gantry and the supporting leg, and the bottom of the walking wheel is on the same horizontal line as the bottom of the supporting leg.

The invention adopts the split structure, is convenient for transportation, does not occupy space, is convenient for on-site assembly, separates the oil pump and the door frame, and is also convenient for repairing the oil pump and also for replacing parts. The oil pump is used for lifting, and the lift is raised to a certain height, which is convenient for the operator to move, saving time and effort. The overall structure is simple, small in size, flexible and convenient to use. The gantry is used to support the oil pump to make the pump more evenly loaded.

Claims

A portable combined lifting device, comprising four lifts, a hydraulic system and a control device, wherein the lift is a lift of an inverted oil pump, and the lift is symmetrically placed at four corners, Forming a rectangle, the hydraulic cylinder of the lift oil pump is connected to the hydraulic system, and the hydraulic system is electrically connected to the control device.
A lightweight combined lifting device according to claim 1, wherein the lift comprises a gantry, a load-bearing mechanism, a support leg and an oil pump, and the bottom of the gantry is vertically fixed at one end of the support leg, and The support leg is formed in an L shape, and an oil pump is fixed on an upper portion of the gantry. The central axis of the oil pump coincides with a central axis of the gantry. The oil pump includes a valve core and a sliding sleeve, and the connecting end is fixed on both sides of the sliding sleeve, and the connecting end and the door are connected The top of the frame is fixedly connected, and the valve core is located at the lower part of the sliding sleeve and between the door frames to form an inverted oil pump. The end of the valve core is fixedly connected with the load-bearing mechanism, and the sliding sleeve is further provided with a hydraulic oil hole, and the oil pump is at least one. Section.
A lightweight combined lifting device according to claim 2, wherein said oil pump is also movably fixed to the gantry, and the top of the gantry is provided with a locking device, and the oil pump sliding sleeve Both sides are fixed to the door frame by a locking device.
A lightweight combined lifting device according to claim 3, wherein said locking device is an open upward groove, said groove being located on an inner wall of the opposite side of the gantry, at the gantry The outer wall is further provided with a bolt hole communicating with the groove, and the bolt hole is provided with a bolt, and the connecting ends of the oil pump sliding sleeve can be placed in the groove and fastened to the door frame by bolts.
A lightweight combined lifting device according to claim 3, wherein the locking device is a U-shaped groove that is open at one side, and a bolt hole is arranged at the top of the door frame, and the bolt hole is provided therein. Bolts, the connecting ends on both sides of the oil pump sliding sleeve can be slid into the U-shaped groove in the horizontal direction and are restricted by bolts.
A lightweight combined lifting device according to any of claims 2-5, characterized in that the hydraulic oil hole can be located on the side wall of the sliding sleeve or the bottom of the sliding sleeve, and the oil pump can be a single tube oil pump or a double tube oil pump. A fixed seat is fixedly connected to the connection between the valve core and the load-bearing mechanism, and the fixed seat is inserted into the door frame through the safety pin.
A lightweight combined lifting device according to claim 2, further comprising a walking wheel disposed at a bottom of one side of the gantry and the supporting leg, the bottom of the walking wheel being at the same horizontal line as the bottom of the supporting leg The bearing mechanism comprises a bracket and a limiting tooth, and the bracket is connected with the oil pump, and the limiting tooth end is fixedly connected with the bracket.
A lightweight combined lifting device according to claim 2, wherein the load-bearing mechanism comprises a bracket, a bracket, and a bracket, and the bracket is connected to the oil pump, and one end of the bracket is provided with a tooth adjustment hole. The other end is provided with a pad adjusting hole, and the bracket and the bracket are fixedly connected by a positioning pin and a tooth adjusting hole, and the other end of the tooth is connected with the pad through a thread and a pad adjusting hole.
A lightweight combined lifting device according to any one of claims 1-5, 7-9, further comprising a lifting frame, the lifting frame comprising a lifting plate and a leg, The top of the leg is fixed at a central axis position below the lifting plate, and the lifting frame is located below the load-bearing mechanism.
A method for using a lightweight combined lifting device, comprising the four inverted hydraulic movable lifts according to claim 1, wherein the lifting machines are placed in parallel in a group, and the two groups of the same group The lifts are placed opposite each other, so that the four load-bearing mechanisms form four support points, and the four lifts are respectively connected to the hydraulic control device through the pipeline, and the hydraulic control device is turned on. When the spools of the four oil pumps are synchronously extended downward, The load-bearing mechanism moves down, thereby driving the upper load to move downward. When the spools of the four oil pumps are simultaneously retracted upward, the load-bearing mechanism moves up, thereby pushing the upper load upward, and when lifting to the top, A safety pin is inserted into the fixed seat at the bottom of the load-bearing mechanism, and the fixed load-bearing mechanism prevents the sliding.