CN104709846A - Combined type light lifting device and application method thereof - Google Patents

Abstract

The invention discloses a combined type light lifting device and an application method thereof. The combined type light lifting device 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 of the lifting machine oil pumps are connected with the hydraulic system, and the hydraulic system is electrically connected with the control device. The combined type light lifting device has the advantages that a split structure is adopted, transportation is facilitated, less space is occupied, field assembly is facilitated, the oil pumps and a portal frame are of a split structure, separation transportation and temporary assembly are achieved, the oil pumps can be detected conveniently, and parts can be replaced conveniently. The oil pumps are used for lifting the lifting machines by a certain height, an operator can move the combined type light lifting device conveniently, and time and labor are saved. The combined type light lifting device is simple in overall structure, small in size and flexible and convenient to use.

Description

A Portable Combined Lifting Equipment and Its Using Method

technical field

The invention relates to a portable combined lifting device and its usage method.

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. Mechanical jacks are inflexible to use and inconvenient to carry; hydraulic jacks are easy to use and have a wide range of applications. The lifting height of existing jacks is all between 10-30cm, which cannot meet the use requirements. Moreover, the existing lifts are all installed with upright oil pumps. At the same time, the chain is used as a transmission to drive heavy objects to lift. This increases the mechanical structure, increases the overall weight, and also increases the transmission force. consumption.

Contents of the invention

In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a portable combined lifting device and its usage method.

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

A portable combined lifting device, characterized in that it includes four lifts, a hydraulic system and a control device, the lifts are lifts with an inverted oil pump, and the lifts are symmetrically placed on the four corners, Forming a rectangle, the hydraulic oil 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 includes a door frame, a load-bearing mechanism, a support leg and an oil pump. The bottom of the door frame is vertically fixed on one end of the support leg, forming an L shape with the support leg. An oil pump is fixed on the top of the door frame. The central axis of the oil pump is connected to the door The central axis of the frame coincides. The oil pump includes a valve core and a sliding sleeve. There are connecting ends fixed on both sides of the sliding sleeve, which are fixedly connected to the top of the door frame through the connecting end. The end of the spool is fixedly connected with the load-bearing mechanism, the sliding sleeve is also provided with a hydraulic oil hole, and the oil pump has at least one section.

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

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

The locking device is a U-shaped groove with one side opening. There are bolt holes on the top of the door frame. Bolts are arranged in the bolt holes. The connecting ends on both sides of the oil pump sliding sleeve can slide into the U-shaped groove along the horizontal direction. , and limited by bolts.

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-pipe oil pump or a double-pipe oil pump; the connection between the valve core and the load-bearing mechanism is fixedly connected with a fixed seat, and the fixed seat is connected to the door frame through a safety pin Docking.

It also includes walking wheels, which are arranged at the bottom of the side where the mast and the supporting legs are connected, and the bottom of the walking wheels is on the same level as the bottom of the supporting legs. The load-bearing mechanism includes a bracket and a limit tooth, and the bracket is connected to the oil pump , the end of the limit tooth is fixedly connected with the bracket.

The load-bearing mechanism includes a bracket, a bracket, and a pad. The bracket is connected to the oil pump. One end of the bracket is provided with a bracket adjustment hole, and the other end is provided with a pad adjustment hole. The tooth adjusting hole is fixedly connected, and the other end of the supporting tooth is connected with the supporting pad through threads and the supporting pad adjusting hole.

It also includes a lifting frame, the lifting frame includes a lifting plate and legs, the top of the leg is fixed on the central axis position below the lifting plate, and the lifting frame is located under the load-bearing mechanism.

A method of using a portable combined lifting device, which is characterized in that it includes four inverted hydraulic movable lifts according to claim 1, two lifts are placed in parallel in a group, and the two lifts in the same group The lifts are placed relative to each other so that the four load-bearing mechanisms form four support points. The four lifts are respectively connected to the hydraulic control device through pipelines. When the hydraulic control device is turned on, when the spools of the four oil pumps protrude downward synchronously, The load-bearing mechanism moves down, thereby driving the upper load to move downward. When the spools of the four oil pumps retract upward synchronously, the load-bearing mechanism moves upward, thereby driving the upper load to lift upward. When it is lifted to the top, it can be A safety pin is inserted into the fixed seat at the bottom of the load-bearing mechanism to fix the load-bearing mechanism to prevent it from sliding down.

Compared with prior art, the beneficial effect of the present invention is:

The separate structure is adopted, which is convenient for transportation, does not occupy space, and is convenient for on-site assembly. The oil pump and the mast are separated to realize separate transportation and temporary assembly. At the same time, it is also convenient for maintenance of the oil pump and replacement of parts. The oil pump is used to raise the lift to a certain height, which is convenient for the operator to move and saves time and effort. The overall structure is simple, the volume is small, and the use is flexible and convenient. The mast is used to support the oil pump so that the force on the oil pump is more even. The support has walking wheels, and there is only one set of walking wheels, which does not affect the fixing of the support. When it needs to be moved, the walking wheels can be used by tilting the support, which is convenient for moving.

Description of drawings

Figure 1 is a top view of the present invention.

Fig. 2 is a front view of the hydraulic movable lift.

Fig. 3 is a right side view of the hydraulic movable lift.

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

Fig. 5 is a structural schematic diagram of the bearing mechanism.

Fig. 6 is a structural schematic diagram of the bearing mechanism.

Fig. 7 is a structural schematic diagram of the bearing mechanism.

In the figure: 1-supporting leg 2-door frame 3-spool 4-sliding sleeve 5-handle 6-load bearing mechanism 7-traveling wheel 10-tooth 11-pad 12-pad adjustment hole 13-limiting tooth 14 -bracket 15-tooth adjustment hole 16-safety pin 17-fixed seat 18-first balance valve 19-second balance valve 20-third balance valve 21-fourth balance valve 22-electromagnetic reversing valve 23-hydraulic pressure Oil cylinder 24 lifting frame.

Detailed ways

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

Example 1:

A portable combined lifting device, including four lifts, a hydraulic system and a control device, the lifts are lifts with an inverted oil pump, and the lifts are symmetrically placed on the four corners to form a rectangle, lifting The hydraulic oil 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 includes a mast, a load-bearing mechanism, a support leg and an oil pump, and the bottom of the mast is vertically fixed on one end of the support leg. The supporting legs form an L shape. An oil pump is fixed on the upper part of the mast. The central axis of the oil pump coincides with the central axis of the mast. The oil pump includes a valve core and a sliding sleeve. Both sides of the sliding sleeve are fixed with connecting ends. The top of the frame is fixedly connected, the valve core is located at the lower part of the sliding sleeve and between the door frames, forming an inverted oil pump, the end of the valve core is fixedly connected with the load-bearing mechanism, the sliding sleeve is also provided with a hydraulic oil hole, and the oil pump is at least one Festival.

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

The hydraulic system also includes a balance valve group, the balance valve group includes a plurality of balance valves, two hydraulic cylinders of the lift are formed into a group, one end is connected with the first balance valve, the other end is connected with the second balance valve, the two The first balance valve is connected with a third balance valve, the two second balance valves are connected with a fourth balance valve, and the third balance valve and the fourth balance valve are respectively connected with the electromagnetic reversing valve. One end of the electromagnetic reversing valve is respectively connected with the check valve, the motor oil pump and the filter, and the other end is directly connected with the oil cylinder.

By adopting the balance valve group and controlling the lifting with the control device, the oil pumps of the four lifts can be lifted or lowered synchronously.

It further includes a lifting frame, the lifting frame includes a lifting plate and legs, the top of the legs is fixed on the central axis below the lifting plate, and the lifting frame is located under the load-bearing mechanism. The lifting plate can play the role of the second 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, a lifting frame is provided under the load-bearing mechanism, which can lift To the role of the second lifting, improve safety.

A method of using a portable combined lifting device, which is characterized in that it includes four inverted hydraulic movable lifts according to claim 1, two lifts are placed in parallel in a group, and the two lifts in the same group The lifts are placed relative to each other so that the four load-bearing mechanisms form four support points. The four lifts are respectively connected to the hydraulic control device through pipelines. When the hydraulic control device is turned on, when the spools of the four oil pumps protrude downward synchronously , the load-bearing mechanism moves down, thereby driving the upper load to move downward. When the spools of the four oil pumps retract upward synchronously, the load-bearing mechanism moves upward, thereby driving the upper load to lift upward. When lifted to the top, it can be Insert the safety pin at the fixed seat at the bottom of the load-bearing mechanism to fix the load-bearing mechanism to prevent it from sliding

Example 2:

A portable combined lifting device, including four lifts, a hydraulic system and a control device, the lifts are lifts with an inverted oil pump, and the lifts are symmetrically placed on the four corners to form a rectangle, lifting The hydraulic oil 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 includes a mast, a load-bearing mechanism, a support leg and an oil pump, and the bottom of the mast is vertically fixed on one end of the support leg. The supporting legs form an L shape. An oil pump is fixed on the upper part of the mast. The central axis of the oil pump coincides with the central axis of the mast. The oil pump includes a valve core and a sliding sleeve. Both sides of the sliding sleeve are fixed with connecting ends. The top of the frame is fixedly connected, the valve core is located at the lower part of the sliding sleeve and between the door frames, forming an inverted oil pump, the end of the valve core is fixedly connected with the load-bearing mechanism, the sliding sleeve is also provided with a hydraulic oil hole, and the oil pump is at least one Festival.

The oil pump can also be movably fixed on the door frame, the top of the door frame is provided with a locking device, the two sides of the oil pump sliding sleeve are fixed on the door frame through the locking device, and the locking device is one side There are bolt holes on the top of the mast for the U-shaped groove opening, and bolts are arranged in the bolt holes. The connecting ends on both sides of the oil pump sliding sleeve can slide into the U-shaped groove along the horizontal direction and be limited by the bolts.

Example 3:

A portable combined lifting device, including four lifts, a hydraulic system and a control device, the lifts are lifts with an inverted oil pump, and the lifts are symmetrically placed on the four corners to form a rectangle, lifting The hydraulic oil 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 includes a mast, a load-bearing mechanism, a support leg and an oil pump, and the bottom of the mast is vertically fixed on one end of the support leg. The supporting legs form an L shape. An oil pump is fixed on the upper part of the mast. The central axis of the oil pump coincides with the central axis of the mast. The oil pump includes a valve core and a sliding sleeve. Both sides of the sliding sleeve are fixed with connecting ends. The top of the frame is fixedly connected, the valve core is located at the lower part of the sliding sleeve and between the door frames, forming an inverted oil pump, the end of the valve core is fixedly connected with the load-bearing mechanism, the sliding sleeve is also provided with a hydraulic oil hole, and the sliding sleeve is provided with There is a single hydraulic oil hole, which is a single-pipe 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, and the oil pump is at least one section.

Example 4:

A portable combined lifting device, including four lifts, a hydraulic system and a control device, the lifts are lifts with an inverted oil pump, and the lifts are symmetrically placed on the four corners to form a rectangle, lifting The hydraulic oil 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 includes a mast, a load-bearing mechanism, a support leg and an oil pump, and the bottom of the mast is vertically fixed on one end of the support leg. The supporting legs form an L shape. An oil pump is fixed on the upper part of the mast. The central axis of the oil pump coincides with the central axis of the mast. The oil pump includes a valve core and a sliding sleeve. Both sides of the sliding sleeve are fixed with connecting ends. The top of the frame is fixedly connected, the valve core is located at the lower part of the sliding sleeve and between the door frames, forming an inverted oil pump, the end of the valve core is fixedly connected with the load-bearing mechanism, the sliding sleeve is also provided with a hydraulic oil hole, and the sliding sleeve is provided with There are two hydraulic oil holes, which are double-pipe oil pumps, and the hydraulic oil holes can be located on the side wall of the sliding sleeve or at the bottom of the sliding sleeve, and the oil pump is at least one section.

Example 5:

A portable combined lifting device, including four lifts, a hydraulic system and a control device, the lifts are lifts with an inverted oil pump, and the lifts are symmetrically placed on the four corners to form a rectangle, lifting The hydraulic oil 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 includes a mast, a load-bearing mechanism, a support leg and an oil pump, and the bottom of the mast is vertically fixed on one end of the support leg. The supporting legs form an L shape. An oil pump is fixed on the upper part of the mast. The central axis of the oil pump coincides with the central axis of the mast. The oil pump includes a valve core and a sliding sleeve. Both sides of the sliding sleeve are fixed with connecting ends. The top of the frame is fixedly connected, the valve core is located at the lower part of the sliding sleeve and between the door frames, forming an inverted oil pump, the end of the valve core is fixedly connected with the load-bearing mechanism, the sliding sleeve is also provided with a hydraulic oil hole, and the oil pump is at least one section; the load-bearing mechanism includes a bracket, a limit tooth, the bracket is connected with the oil pump, and the end of the limit tooth is fixedly connected with the bracket.

Embodiment 6:

A portable combined lifting device, including four lifts, a hydraulic system and a control device, the lifts are lifts with an inverted oil pump, and the lifts are symmetrically placed on the four corners to form a rectangle, lifting The hydraulic oil 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 includes a mast, a load-bearing mechanism, a support leg and an oil pump, and the bottom of the mast is vertically fixed on one end of the support leg. The supporting legs form an L shape. An oil pump is fixed on the upper part of the mast. The central axis of the oil pump coincides with the central axis of the mast. The oil pump includes a valve core and a sliding sleeve. Both sides of the sliding sleeve are fixed with connecting ends. The top of the frame is fixedly connected, the valve core is located at the lower part of the sliding sleeve and between the door frames, forming an inverted oil pump, the end of the valve core is fixedly connected with the load-bearing mechanism, the sliding sleeve is also provided with a hydraulic oil hole, and the oil pump is at least one section; the load-bearing mechanism includes a bracket, a bracket, and a pad, and the bracket is connected to the oil pump. One end of the bracket is provided with a bracket adjustment hole, and the other end is provided with a pad adjustment hole. The bracket and the bracket pass through the positioning pin 1. The supporting tooth adjustment hole is fixedly connected, and the other end of the supporting tooth is connected with the supporting pad through the thread and the supporting pad adjusting hole.

Further, the connection between the valve core and the load-bearing mechanism is fixedly connected with a fixed seat, and the fixed seat is inserted into the door frame through a safety pin.

Further, the door frame is provided with a handle.

Further, it also includes traveling wheels, which are arranged at the bottom of one side where the mast is connected with the supporting legs, and the bottom of the traveling wheels is on the same horizontal line as the bottom of the supporting legs.

The invention adopts a split structure, which is convenient for transportation, does not take up space, and is convenient for on-site assembly. The separation of mechanisms such as the oil pump and the door frame is also convenient for maintenance of the oil pump and replacement of parts. The oil pump is used to raise the lift to a certain height, which is convenient for the operator to move and saves time and effort. The overall structure is simple, the volume is small, and the use is flexible and convenient. The mast is used to support the oil pump so that the force on the oil pump is more even.

Claims (10)

1. a light combined lifting equipment, it is characterized in that, comprise four lifting machines, hydraulic efficiency pressure system and control setups, described lifting machine is the lifting machine being inverted oil pump, lifting machine symmetry is placed on four angles, form rectangle, the hydraulic ram of lifting machine oil pump is connected with hydraulic efficiency pressure system, and hydraulic efficiency pressure system is electrically connected with control setup.

2. the light combined lifting equipment of one according to claim 1, it is characterized in that, described lifting machine comprises door frame, support mechanism, supporting leg and oil pump, one end being fixed on supporting leg of door frame bottom vertical, L shape is formed with supporting leg, the top of door frame is fixed with oil pump, the central axis of oil pump and the central axes of door frame, described oil pump comprises spool and sliding sleeve, sliding sleeve both sides are fixed with coupling end, be fixedly connected with door frame top by coupling end, spool is in sliding sleeve bottom and be between door frame, form inverted oil pump, spool end is fixedly connected with support mechanism, described sliding sleeve is also provided with hydraulic pressure oilhole, described oil pump is at least a joint.

3. the light combined lifting equipment of one according to claim 2, is characterized in that, what described oil pump can also be movable is fixed on door frame, and the top of described door frame is provided with latching device, and the both sides of oil pump sliding sleeve are fixed on door frame by latching device.

4. the light combined lifting equipment of one according to claim 3, it is characterized in that, described latching device is the groove of an opening upwards, this groove is positioned on the inwall of the relative side of door frame, the outer wall of door frame is also provided with a bolt hole communicated with groove, be provided with bolt in bolt hole, the coupling end of oil pump sliding sleeve both sides can be positioned in groove, and is fastened by bolts on door frame.

5. the light combined lifting equipment of one according to claim 3, it is characterized in that, described latching device is the U-type groove of a lateral openings, bolt hole is provided with at the top of door frame, bolt is provided with in bolt hole, the coupling end of oil pump sliding sleeve both sides can slip in U-type groove in the horizontal direction, and spacing by bolt.

6. the light combined lifting equipment of one according to any claim of claim 2-5, is characterized in that, hydraulic pressure oilhole can be positioned on sliding sleeve sidewall or bottom sliding sleeve, and oil pump can be single tube oil pump or two-tube oil pump; Described spool and support mechanism junction are fixedly connected with permanent seat, and permanent seat is by safety pin and door frame grafting.

7. the light combined lifting equipment of one according to claim 2, is characterized in that, also comprise road wheel, and road wheel is arranged on the side bottom that door frame is connected with supporting leg, bottom road wheel be on same level line bottom supporting leg; Described support mechanism comprises bracket, limiting tooth, and bracket is connected with oil pump, and limiting tooth end is fixedly connected with bracket.

8. the light combined lifting equipment of one according to claim 2, it is characterized in that, described support mechanism comprises bracket, holder tooth, pad, bracket is connected with oil pump, holder tooth one end is provided with holder tooth adjustment hole, the other end is provided with pad adjustment hole, holder tooth with bracket by locating dowel pin, ask tooth adjustment hole to be fixedly connected with, hold in the palm that the tooth other end passes through screw thread, pad adjustment hole is connected with pad.

9. the light combined lifting equipment of one according to the arbitrary claim of claim 1-5,7-9, it is characterized in that, also comprise a lift stand, described lift stand comprises lifts plate and supporting leg, the top of supporting leg is fixed on the cental axial position lifted below plate, and described lift stand is positioned at below support mechanism.

10. the using method of a light combined lifting equipment, it is characterized in that, comprise four removable lifting machines of inversion hydraulic pressure according to claim 1, lifting machine two is one group of parallel placement, two lifting machines with group are staggered relatively, four support mechanisms are made to form four strong points, four lifting machines are connected with hydraulic control device respectively by pipeline, open hydraulic control device, when the spool of four oil pumps synchronously stretches out downwards, support mechanism moves down, thus drive loading above to move down, when the spool of four oil pumps synchronously upwards bounces back, support mechanism moves, thus drive loading upwards lifting above, when giving rise to top, safety pin can be inserted in permanent seat place bottom support mechanism, fixing support mechanism prevents from gliding.