CN117228543A - Portable hoist device - Google Patents

Abstract

The utility model belongs to the field of cranes with trolleys or hoisting seats which walk on fixed or movable bridges or portals, and particularly relates to a movable hoisting device. In order to solve the technical problem that the height of a lifted object is not satisfactory because the height of a frame cannot be infinitely increased on the premise that the height of the lifted object can be adjusted through a narrow passage, the utility model provides a movable lifting device which comprises a frame, a lifting seat and a wheel mechanism, wherein a first lifting mechanism for controlling the lifting of the lifting seat is arranged on the frame, a lifting appliance is connected to the lifting seat, the lifting appliance comprises a connecting structure for connecting with the lifted object, and the movable lifting device further comprises a second lifting mechanism for directly controlling the lifting of the connecting structure or controlling the lifting of the lifting appliance to indirectly control the lifting of the connecting structure. The height of the lifted object is adjusted in a two-stage lifting mode so that the height of the lifted object meets the requirement.

Description

Portable hoist device

Technical Field

The utility model belongs to the field of cranes with trolleys or hoisting seats which walk on fixed or movable bridges or portals, and particularly relates to a movable hoisting device.

Background

The movable lifting device generally comprises a frame, a lifting seat which is arranged on the frame and can slide along the frame, and a lifting appliance which is arranged below the lifting seat, wherein a wheel mechanism for moving the frame is arranged at the bottom of the frame, a lifting hook is arranged below the lifting appliance, the movable lifting device also comprises a second lifting mechanism for controlling the lifting of the lifting hook, and the second lifting mechanism can be a lifting rope connected to the lifting appliance and controls the lifting of the lifting hook in a lifting control mode; of course, the second lifting mechanism may also be a direct-acting cylinder directly arranged on the lifting appliance, and the output end of the direct-acting cylinder is connected with the lifting hook to control lifting of the lifting hook. However, if the material is to be lifted to a higher position, the height of the frame is higher, and in the engineering construction or material transferring process, the material such as a metal bracket, a pipe fitting and the like is often required to be lifted and transferred to other places by a movable lifting device, and under specific conditions, the lifting device needs to pass through a narrow passage, so that the current movable lifting device cannot meet the requirement of passing through the narrow passage.

The specification [0030] - [0041] of the patent with the publication number of CN 206407835U and the publication date of 2017.08.15 and the accompanying figures 3-7 specifically disclose a lifting device, which comprises a support frame (i.e. a frame), a lifting mechanism, two lifting mechanisms (i.e. a first lifting mechanism) and a travelling mechanism (i.e. a wheel mechanism), wherein the output ends of the two lifting mechanisms are respectively connected with two ends of the support frame, and the lifting mechanism is arranged in the hollow inside the support frame. The lifting mechanism comprises a limiting block (namely a lifting seat) and a vertical rod, wherein the lower end of the vertical rod is fixedly connected with a piston, the lower end of the piston is provided with a piston rod, and the lower end of the piston rod is fixedly connected with a lifting hook (namely a connecting structure). In the lifting device, the lifting mechanism is an air cylinder, and the vertical rod, the piston rod and the lifting hook form a lifting appliance.

When the lifting device is used, firstly, the lifting hook is hooked on the lifting ring of the material, and then the lifting mechanism drives the supporting frame to ascend, so that the lifting mechanism and the lifting hook connected to the supporting frame are driven to ascend, and the material (namely the lifted object) is lifted to a specified height. When passing through narrow and small passageway, control elevating system reduces the height of support frame to reduce the height of whole lifting hoisting device, make the frame can pass through narrow and small passageway. However, the lifting device can only adjust the height of a lifted object by the lifting mechanism, the lengths of the vertical rod, the piston and the piston rod are fixed, and the height of the frame cannot be infinitely increased on the premise that the whole lifting device can pass through a narrow passage when moving materials; when the movable hoisting device reaches a target place and lifts materials, the lengths of the vertical rod, the piston and the piston rod are too long, and after the lifting mechanism is lifted highest, the lifted height of the lifted objects is still too low, so that the requirements are not met, and the vertical rod, the piston and the piston rod are required to be replaced; or the lengths of the vertical rod, the piston and the piston rod are too short, and after the lifting mechanism is reduced to the lowest, the lifted height of the lifted object is still too high, so that the lifting mechanism is not in line with the requirements, and the vertical rod, the piston and the piston rod must be replaced. In summary, the lifting device in the prior art can only adjust the height of the lifted object by the lifting mechanism, which is not flexible enough and inconvenient to use.

Disclosure of Invention

The utility model aims to provide a movable lifting device, which aims to solve the problems that in the prior art, the movable lifting device can only adjust the height of a material by a lifting mechanism, the lengths of a vertical rod, a piston and a piston rod are certain, and when the material is moved, the height of a frame cannot be infinitely increased on the premise that the whole lifting device can pass through a narrow passage; when the movable hoisting device reaches a target place and lifts materials, the lengths of the vertical rod, the piston and the piston rod are too long, and after the lifting mechanism is lifted highest, the lifted height of the lifted objects is still too low, so that the requirements are not met, and the vertical rod, the piston and the piston rod are required to be replaced; or the lengths of the vertical rod, the piston and the piston rod are too short, and after the lifting mechanism is reduced to the lowest, the lifted height of the lifted object is still too high, so that the requirement is not met, and the vertical rod, the piston and the piston rod are required to be replaced; resulting in the technical problems of inflexibility and inconvenient use.

In order to achieve the above purpose, the technical scheme of the mobile lifting device provided by the utility model is as follows:

the utility model provides a portable hoist device, includes the frame, installs the hoist and mount seat on the frame, is equipped with the first elevating system that is used for controlling hoist and mount seat to go up and down on the frame, is connected with the hoist on the hoist and mount seat, and the hoist is including being used for the connection structure who is connected with the lifted by the object, and portable hoist device is still including being used for direct control connection structure to go up and down or be used for controlling hoist to go up and down and then indirect control connection structure goes up and down second elevating system.

The beneficial effects are as follows: the utility model is an improved utility model, in particular to a combined utility model. Through setting up first elevating system and second elevating system, can be on satisfying portable hoist device and can pass through the basis of narrow and small passageway, further adjust the position of lifted by the hoist object again through second elevating system to make the height of lifted by the hoist object satisfy the requirement. Therefore, compared with the technical scheme in the prior art, the lifting device has the advantages that the first lifting mechanism and the second lifting mechanism are mutually matched, so that the height of the movable lifting device can be reduced as much as possible, the movable lifting device can pass through a narrow passage, and the height of a lifted object can be adjusted in a two-stage lifting mode during lifting, so that the height of the lifted object meets the requirement.

Still further, the hoist seat includes at least a set of fixed pulley group, and every group fixed pulley group includes advancing rope fixed pulley and goes out rope fixed pulley, still is equipped with the guide pulley on the frame, is equipped with the lifting pulley on the hoist, still is equipped with the hoist engine on the frame, and the hoist engine includes hoist lifting rope, and hoist lifting rope is fixed in order on the frame after bypassing guide pulley, advancing rope fixed pulley, lifting pulley and go out rope fixed pulley in order to control hoist and go up and down.

The beneficial effects are as follows: when the lifting rope of the lifting tool is lengthened or shortened, the length of a section of lifting rope of the lifting tool between the lifting tool hoist and the rope inlet fixed pulley is fixed, and the length of a section of lifting rope of the lifting tool between the rope outlet fixed pulley and the frame is fixed, so that the length of the lifting rope of the lifting tool between the rope inlet fixed pulley and the lifting pulley as well as between the lifting pulley and the rope outlet fixed pulley can be changed, lifting of the lifting tool can be conveniently controlled through the lifting tool hoist, and the height of a lifted object connected with the connecting structure is controlled.

Further, the part of the lifting rope of the lifting appliance, which bypasses the rope inlet fixed pulley, the lifting pulley and the rope outlet fixed pulley, is polygonal.

The beneficial effects are as follows: the lifting rope of the lifting appliance bypasses the rope inlet fixed pulley, the lifting pulley and the rope outlet fixed pulley and forms a polygon, so that the stability of the lifting appliance can be improved, and unnecessary relative movement between the lifting seat and the lifting appliance is avoided.

Still further, the hoist and mount seat slidable installs the top at the frame, still be equipped with hoist and mount seat hoist engine and reversing structure on the frame, reversing structure is including setting up first fixed pulley, second fixed pulley and the third fixed pulley of setting in the frame opposite side in frame one side, hoist and mount seat hoist engine includes two hoist and mount seat lifting ropes, and one hoist and mount seat lifting rope is connected in one side of hoist and mount seat after bypassing first fixed pulley, and another hoist and mount seat lifting rope is connected in order to control the slip of hoist and mount seat after bypassing second fixed pulley and third fixed pulley in proper order at the opposite side of hoist and mount seat.

The beneficial effects are as follows: through hoist and mount seat hoist engine, first fixed pulley, second fixed pulley and the third fixed pulley of setting at the frame opposite side, can make two hoist and mount seat lifting ropes connect respectively in hoist and mount seat both sides, make one hoist and mount seat lifting rope extend, another hoist and mount seat lifting rope shortens correspondingly to the position of control hoist and mount seat.

Furthermore, the frame is a door-shaped frame, the three guide pulleys are arranged on the same side of the frame and are divided into two side guide pulleys and a middle guide pulley arranged between the two side guide pulleys, the lifting seat comprises two groups of fixed pulley blocks, and the two lifting ropes of the lifting appliance respectively bypass the two side guide pulleys and then bypass different fixed pulley blocks; the middle guide pulley forms the third fixed pulley, and the lifting appliance winch and the lifting seat winch are respectively positioned at two sides of the frame.

The beneficial effects are as follows: through making hoist engine and hoist seat hoist engine be located the both sides of frame respectively, can guarantee that portable hoist device's focus is stable, simultaneously, also can prevent that the frame from too much with the fixed pulley of one side, avoid the frame too wide to reduce the volume of frame. Through setting up two hoist lifting ropes to make hoist lifting rope bypass different fixed pulley group after two lateral part guide pulleys respectively, can make two hoist lifting ropes support the hoist from opposite both ends respectively, improve the stability when hoist up-and-down motion.

Still further, but hoist and mount seat and frame sliding fit in the horizontal plane, still be equipped with hoist and mount seat hoist engine and reversing structure on the frame, reversing structure is including setting up first fixed pulley, second fixed pulley and the third fixed pulley of setting in the frame opposite side in frame one side, hoist and mount seat hoist engine includes two hoist and mount seat lifting ropes, and one hoist and mount seat lifting rope is connected in one side of hoist and mount seat after bypassing first fixed pulley, and another hoist and mount seat lifting rope is connected in order to control the slip of hoist and mount seat after bypassing second fixed pulley and third fixed pulley in proper order at the opposite side of hoist and mount seat.

The beneficial effects are as follows: the lifting seat and the frame can be in sliding fit in the horizontal plane, so that the position of the lifted object can be conveniently adjusted by adjusting the position of the lifting seat. Two lifting seat lifting ropes can be respectively connected to two ends of the lifting seat through the reversing structure, so that the position of the lifting seat can be conveniently controlled.

Still further, the frame includes the frame body and installs the crane at frame body top, the hoist and mount seat is installed on the crane, first elevating system installs on the frame in order to reciprocate and indirect control hoist and mount seat lift through the drive crane.

The beneficial effects are as follows: lifting of the lifting seat can be conveniently controlled through the lifting frame.

Further, the lifting appliance comprises a top plate and a rotary platform which is connected to the lower part of the top plate and used for driving the connecting structure to rotate.

The beneficial effects are as follows: the rotary platform is arranged to drive the connecting structure to rotate, so that the lifted object can be conveniently rotated.

Still further, still be connected with the material supporting mechanism that is used for placing the lifted object on the frame, material supporting mechanism includes backup pad and the material supporting bench of setting in backup pad upper portion, but backup pad and frame are along vertical sliding fit, but material supporting bench and backup pad are along horizontal sliding fit.

The beneficial effects are as follows: through setting up material supporting mechanism, can be when the long-distance transport material, store the material on the material supporting bench earlier, later make portable hoist device remove to the target site to avoid the material to be in by the state of lifting by crane always in the transportation, reduce the material swing and hinder people and the risk that the material drops from the hoist.

Still further, the frame bottom is equipped with and removes wheel and supporting wheel, removes the four corners department that the wheel set up in the frame bottom, and the supporting wheel sets up respectively between the removal wheel at frame bottom both ends, still is equipped with the direct action actuating mechanism on the frame, and the output of each direct action actuating mechanism all vertically sets up and is connected with each removal wheel respectively, still is equipped with the detection mechanism that is used for detecting the frame apart from ground height around each removal wheel, the position of removing the wheel can be adjusted according to detection mechanism's data to the direct action actuating mechanism.

The beneficial effects are as follows: through setting up direct action actuating mechanism, removal wheel and supporting wheel, can make portable hoist device adapt to the not flat complicated operating mode in ground such as stair, when the ground is not level, only need adjust corresponding direct action actuating mechanism to adjust the altitude of each removal wheel, and then make hoist seat, hoist and by hoisting thing keep the level.

Drawings

Fig. 1 is a schematic structural view of an embodiment 1 of a mobile lifting device according to the present utility model;

fig. 2 is a schematic structural view of the lifting mechanism in embodiment 1 of the mobile lifting device of the present utility model when not lifted;

fig. 3 is a schematic structural view of a lifting mechanism in embodiment 1 of the mobile lifting device of the present utility model when lifted;

FIG. 4 is a bottom view of the wheel mechanism of embodiment 1 of the mobile lifting device of the present utility model;

fig. 5 is a schematic structural diagram of a moving structure in a specific embodiment 1 of the mobile lifting device of the present utility model;

fig. 6 is a schematic structural view of the mobile lifting device according to embodiment 1 of the present utility model when the mobile structure is adapted to stairs;

fig. 7 is a schematic view of a part of a hanger in embodiment 1 of the mobile lifting device of the present utility model;

fig. 8 is a schematic structural view of a hoist hoisting mechanism in a specific embodiment 1 of the mobile hoisting device of the present utility model;

fig. 9 is a schematic winding diagram of a hoist hoisting mechanism in a specific embodiment 1 of the mobile hoisting device of the present utility model;

fig. 10 is a schematic structural view of a hoisting base hoisting mechanism in a specific embodiment 1 of the mobile hoisting device of the utility model;

fig. 11 is a winding schematic diagram of a hoisting seat hoisting mechanism in a specific embodiment 1 of a mobile hoisting device according to the utility model;

fig. 12 is a schematic structural view of a material supporting mechanism in embodiment 1 of the mobile lifting device of the present utility model;

fig. 13 is a schematic winding diagram of a lifting rope of a lifting appliance in a specific embodiment 3 of a mobile lifting device according to the present utility model.

Reference numerals illustrate:

1. a frame; 2. hoisting the base; 21. a rope feeding fixed pulley; 22. a rope-discharging fixed pulley; 3. a lifting appliance; 31. a rotary platform; 32. a lifting hook; 33. a rope-discharging movable pulley; 34. a rope feeding movable pulley; 4. a wheel mechanism; 41. an ultrasonic radar; 42. a universal wheel; 43. steering wheel; 44. an electric push rod; 5. a material supporting mechanism; 51. a material support table; 52. a material limiting device; 53. a material supporting mechanism limiting device; 54. a material supporting mechanism sliding rail; 55. a material slide rail; 6. a screw lifting mechanism; 61. a turbine screw elevator; 611. a screw; 62. a guide rod; 7. a lifting appliance hoisting mechanism; 71. a hoist; 72. a guide pulley; 73. a lifting rope of the lifting appliance; 8. hoisting seat hoisting mechanism; 81. hoisting a seat winch; 82. hoisting a seat lifting rope; 83. a reversing pulley; 84. and an intermediate guide pulley.

Detailed Description

The present utility model is described in further detail below with reference to examples.

The utility model provides a specific embodiment 1 of a movable hoisting device, which comprises the following steps:

an object of this embodiment is to provide a mobile lifting device capable of realizing two-stage lifting, by making the first lifting mechanism and the second lifting mechanism cooperate with each other, not only can the height of the mobile lifting device be reduced as much as possible so that the mobile lifting device passes through a narrow channel, but also the height of the lifted object can be adjusted by the two-stage lifting mode so that the height of the lifted object meets the requirements.

As shown in fig. 1, this embodiment specifically provides a portable hoist device, including frame 1, hoist and mount seat 2 and wheel mechanism 4 of installing on frame 1, be equipped with the first elevating system that is used for controlling hoist and mount seat 2 to go up and down on the frame 1, be connected with hoist 3 on the hoist and mount seat 2, hoist 3 is including being used for the connection structure who is connected with the lifted by the object, portable hoist device still includes the second elevating system that is used for direct control connection structure to go up and down or is used for controlling hoist 3 to go up and down and then indirectly control connection structure to go up and down. In the present embodiment, the connection structure is a hook 32, but in other embodiments, the connection structure may be a hanging ring, a chain block, or the like.

Through setting up first elevating system and second elevating system, can be on satisfying portable hoist device and can pass through the basis of narrow and small passageway, further adjust the position of lifted by the hoist object again through second elevating system to make the height of lifted by the hoist object satisfy the requirement. Therefore, compared with the technical scheme in the prior art, the lifting device has the advantages that the first lifting mechanism and the second lifting mechanism are mutually matched, so that the height of the movable lifting device can be reduced as much as possible, the movable lifting device can pass through a narrow passage, and the height of a lifted object can be adjusted in a two-stage lifting mode during lifting, so that the height of the lifted object meets the requirement.

In order to conveniently control the lifting of the lifting seat 2, in this embodiment, as shown in fig. 2-3, the frame 1 comprises a frame 1 body and a lifting frame mounted on the top of the frame 1 body, the lifting seat 2 is mounted on the lifting frame, and a first lifting mechanism is mounted on the frame 1 to indirectly control the lifting of the lifting seat 2 by driving the lifting frame to move up and down. Specifically, the first elevating mechanism is a screw elevating mechanism 6, the screw elevating mechanism 6 comprises two turbine screw lifters 61 respectively arranged at two ends of the frame 1 body, a screw 611 of each turbine screw lifter 61 is fixedly connected with the lower end of the lifting frame, four guide rods 62 are further arranged at the lower ends of two sides of the lifting frame, which are connected with the screw 611, the four guide rods 62 are arranged at two sides of the lifting frame in two groups, each group of guide rods 62 are symmetrically arranged relative to the connecting line of the two screws 611, through holes for the guide rods 62 and the screw 611 to penetrate are further formed in the upper surface of the frame 1 body, and the guide rods 62 are in guide sliding fit with the frame 1 body so as to avoid shaking of the lifting frame when the movable lifting device moves.

Lifting of the lifting seat 2 can be conveniently controlled by the lifting frame. The lifting height of the lifting seat 2 can be conveniently controlled through the turbine screw lifter 61, the stability of the lifting frame can be enhanced through the guide rod 62, and the lifting seat 2 positioned on the lifting frame is prevented from driving a lifted object to shake.

In order to facilitate controlling the movement of the movable hoisting device, in this embodiment, as shown in fig. 4-6, the wheel mechanism 4 includes moving wheels and supporting wheels disposed at the bottom of the frame 1, the moving wheels are disposed at four corners of the bottom of the frame 1, the supporting wheels are disposed between the moving wheels at two ends of the bottom of the frame 1, the frame 1 is further provided with a linear driving mechanism, the output ends of the linear driving mechanisms are vertically disposed and connected with the moving wheels, and a detecting mechanism for detecting the height of the frame 1 from the ground is disposed around the moving wheels, and the position of the moving wheels can be adjusted by the linear driving mechanism according to the data of the detecting mechanism. Specifically, in the present embodiment, the moving wheels are four steering wheels 43, the supporting wheels are four universal wheels 42, and the supporting wheels are respectively arranged at two ends of the movable hoisting device, the detecting mechanism is an ultrasonic radar 41, and the direct-acting driving mechanism is an electric push rod 44. However, in other embodiments, the moving wheel may be two universal wheels, and in this case, the moving hoisting device is pushed by a human pushing or a machine pushing manner; the supporting wheels are four unidirectional wheels or only four supporting columns, the bottom of the movable lifting device is rectangular, the supporting beams are divided into four groups and are arranged on four sides of the bottom of the movable lifting device, when the movable lifting device is used normally, small gaps exist between the unidirectional wheels or the supporting columns and the ground (namely the unidirectional wheels or the supporting columns are not contacted with the ground), but when the ground is not level, at least one unidirectional wheel or supporting column can be contacted with the ground to avoid rollover of the movable lifting device, and then the position of the movable wheels is adjusted to enable lifted objects to be kept horizontal; the ultrasonic radar 41 may be replaced with a 3D vision sensor or an infrared sensor, etc.

Through setting up direct action actuating mechanism, removal wheel and supporting wheel, can make portable hoist device adapt to the not flat complicated operating mode in ground such as stair, when the ground is not level, only need adjust corresponding direct action actuating mechanism to adjust the altitude of each removal wheel, and then make hoist seat 2, hoist 3 and by lifting object keep the level.

In order to facilitate rotation of the lifted object, in this embodiment, as shown in fig. 7, the lifting appliance 3 includes a top plate and a rotating platform 31 connected to the lower portion of the top plate and configured to rotate the connecting structure. The rotary platform 31 can drive the connecting structure to rotate, so that the lifted object can be conveniently rotated.

In order to facilitate lifting of the lifting appliance 3, in this embodiment, as shown in fig. 8-9, the lifting seat 2 includes at least one set of fixed pulley blocks, each set of fixed pulley blocks includes a rope feeding fixed pulley 21 and a rope discharging fixed pulley 22, a guiding pulley 72 is further arranged on the frame 1, a lifting pulley is arranged on the lifting appliance 3, the second lifting mechanism is a lifting appliance lifting mechanism 7, a lifting appliance lifting machine 71 is further arranged on the frame 1, the lifting appliance 71 includes a lifting appliance lifting rope 73, and the lifting appliance lifting rope 73 sequentially bypasses the guiding pulley 72, the rope feeding fixed pulley 21, the lifting pulley and the rope discharging fixed pulley 22 and then is fixed on the frame 1 to indirectly control lifting of the connection structure. The part of the lifting rope 73 which winds around the rope inlet fixed pulley 21, the lifting pulley and the rope outlet fixed pulley 22 is polygonal, so that enveloping windings are formed. In this embodiment, the guide pulley 72, the rope-feeding fixed pulley 21 and the rope-discharging fixed pulley 22 are in the same horizontal plane, so as to facilitate winding, the lifting pulley is at least one set of movable pulley blocks, and each set of movable pulley blocks comprises a rope-feeding movable pulley 34 and a rope-discharging movable pulley 33 which are respectively arranged at two ends of the lifting appliance 3, but in other embodiments, the lifting pulley can be a single movable pulley.

When the hoist rope 73 is lengthened or shortened, since the length of the hoist rope 73 between the hoist winch 71 and the rope feeding fixed pulley 21 is fixed and the length of the hoist rope 73 between the rope discharging fixed pulley 22 and the frame 1 is fixed, only the length of the hoist rope 73 between the rope feeding fixed pulley 21 to the lifting pulley and the lifting pulley to the rope discharging fixed pulley 22 is changed, so that the lifting of the hoist 3 can be conveniently controlled by the hoist winch 71, thereby controlling the height of the lifted object connected with the connection structure. By making the hoist rope 73 bypass all sides of the polygon having the rope-in fixed pulley 21, the lifting pulley, and the rope-out fixed pulley 22 as vertices, the stability of the hoist 3 can be improved, and unnecessary relative movement between the hoist base 2 and the hoist 3 can be avoided. By making each set of movable pulley blocks comprise at least two movable pulleys, the same lifting rope 73 of the lifting appliance can support the lifting appliance 3 from multiple points, and the stability of the lifting appliance 3 and the unbalanced load resistance of the lifting device are improved.

In order to facilitate the control of the lateral movement of the lifting seat 2, in this embodiment, as shown in fig. 10-11, the lifting seat 2 is slidably matched with the frame 1 in a horizontal plane, and the frame 1 is provided with a lifting seat hoisting mechanism 8 for controlling the position of the lifting seat. Specifically, be equipped with hoist and mount seat hoist engine 81 and reversing structure on frame 1, the reversing structure is including setting up first fixed pulley in frame one side, second fixed pulley and the third fixed pulley of setting in the frame opposite side, hoist and mount seat hoist engine includes two hoist and mount seat lifting ropes 82, and one hoist and mount seat lifting rope is walked around first fixed pulley and is connected in one side of hoist and mount seat, and another hoist and mount seat lifting rope is walked around second fixed pulley and third fixed pulley in proper order and is connected in the opposite side of hoist and mount seat in order to control the slip of hoist and mount seat. Further, in this embodiment, the lifting seat 2 is slidably mounted on the top end of the frame 1, the frame 1 is further provided with a lifting seat hoist 81 and a reversing structure, the frame 1 is a door-shaped frame, three guide pulleys 72 are located on the same side of the frame, the three guide pulleys 72 are divided into two side guide pulleys and a middle guide pulley 84 located between the two side guide pulleys, the lifting seat 2 includes two groups of fixed pulley blocks, and the two lifting ropes 73 respectively bypass the two side guide pulleys and then bypass different fixed pulley blocks; the middle guide pulley 84 forms the third fixed pulley, the lifting appliance winch 71 and the lifting seat winch 81 are respectively positioned at two ends of the frame 1, the lifting seat winch 81 comprises two lifting seat lifting ropes 82, two reversing pulleys 83 (namely reversing structures, namely the first fixed pulley and the second fixed pulley) are arranged on one side of the frame 1 far away from the guide pulley 72, one lifting seat lifting rope bypasses one reversing pulley and is connected to one side of the lifting seat 2, and the other lifting seat lifting rope bypasses the other reversing pulley and the middle guide pulley 84 and is connected to the other side of the lifting seat 2 so as to control the sliding of the lifting seat 2. Diverting pulley 83 and guide pulley 72 are in the same horizontal plane to facilitate winding.

By enabling the lifting seat 2 and the frame 1 to be in sliding fit in the horizontal plane, the position of the lifted object can be conveniently adjusted by adjusting the position of the lifting seat 2. Two lifting seat lifting ropes 82 can be respectively connected to two ends of the lifting seat 2 through the reversing structure, so that the position of the lifting seat 2 can be conveniently controlled. Through hoist and mount seat hoist engine 81, switching-over pulley 83 and middle guide pulley 84, can make two hoist and mount seat lifting ropes connect respectively in hoist and mount seat 2 both sides, make one hoist and mount seat lifting rope 82 extend, and another hoist and mount seat lifting rope 82 shortens correspondingly to control the position of hoist and mount seat 2. Through setting up two hoist lifting ropes 73 to make hoist lifting rope 73 bypass different fixed pulley group after bypassing two lateral part guide pulley respectively, can make two hoist lifting ropes 73 support hoist 3 from opposite both ends respectively, improve the stability when hoist 3 up-and-down motion.

In order to facilitate long-distance material handling, in this embodiment, as shown in fig. 12, a material supporting mechanism 5 for storing a lifted object is further connected to the frame 1, the material supporting mechanism 5 includes a supporting plate and a material supporting table 51 disposed on an upper portion of the supporting plate, the supporting plate is slidably engaged with the frame 1 in a longitudinal direction, and the material supporting table 51 is slidably engaged with the supporting plate in a transverse direction. Specifically, a material supporting mechanism sliding rail 54 is arranged on the frame 1, a supporting plate is slidably mounted on the material supporting mechanism sliding rail 54, a material sliding rail 55 is arranged on the upper surface of the supporting plate, a material supporting table 51 is slidably mounted on the material sliding rail 55, and the extending direction of the material supporting mechanism sliding rail 54 and the extending direction of the material sliding rail 55 are mutually perpendicular. In order to avoid unnecessary shake of the material on the material supporting table 51, in this embodiment, the material supporting mechanism slide rail 54 and the material slide rail 55 are further provided with a material supporting mechanism limiting device 53 and a material limiting device 52 for limiting the position of the material supporting mechanism 5 or the material supporting table 51, but in other embodiments, the material supporting mechanism limiting device 53 and the material limiting device 52 may not be provided, and only the movement of the movable hoisting device with excessive acceleration may be avoided.

Through setting up material supporting mechanism 5, can be when the long-distance transport material, store the material on material supporting bench 51 earlier, later make portable hoist device remove to the target site to avoid the material to be in by the state of lifting by crane always in the transportation, reduce the material swing and hinder people and the risk that the material drops from hoist 3.

In this embodiment, the hoist winch 71 and the hoist mount winch 81 may be one double-drum winch or two single-drum winches, and of course, the hoist winch 71 and the hoist mount winch 81 may be a multi-drum winch such as a three-drum winch, and only two drums thereof may be used or the double-drum winch may be used as a single-drum winch.

When the movable hoisting device is used, firstly, the material is hoisted and placed on the material supporting mechanism 5; then, the steering wheel 43 is used for driving the movable hoisting device to move, and when the movable hoisting device is ready to pass through a narrow tunnel, the turbine screw rod lifter 61 is controlled to minimize the height of the support frame; then, driving the movable hoisting device to pass through the tunnel and move to a specific position; finally, the turbine screw lifter 61 is controlled to lift the height of the supporting frame, and the lifting appliance 3 is controlled to be high through the lifting appliance lifting mechanism 7, so that the two-stage lifting of materials is realized, and the height of the materials meets the requirement.

The specific embodiment 2 of the movable hoisting device provided by the utility model comprises the following components:

an object of the present embodiment is to provide a second and different lifting mechanism, which is mainly different from embodiment 1 in that: in this embodiment, the second lifting mechanism is a direct-acting driving cylinder fixed on the lifting seat, and specifically, may be an air cylinder, a hydraulic cylinder, or the like. The output end of the second lifting mechanism is connected with the connecting structure to directly control the lifting of the connecting structure, so that the second-level lifting of the lifted object is realized.

The embodiment 3 of the movable hoisting device provided by the utility model comprises:

the purpose of this embodiment is to provide a different winding modes of the lifting rope of the lifting appliance, and the main difference between this embodiment and the specific embodiment 1 is that: in this embodiment, as shown in fig. 13, the positions of the rope feeding fixed pulley and the rope discharging fixed pulley are exchanged, and the lifting rope 73 only bypasses n-1 sides of an n-sided shape with the rope feeding fixed pulley, the lifting pulley and the rope discharging fixed pulley as vertexes, that is, the lifting rope is in a non-enveloping winding method, and then obliquely bypasses the lifting pulley downwards after bypassing the rope feeding fixed pulley.

The embodiment 4 of the movable hoisting device provided by the utility model comprises:

the purpose of this embodiment is to provide a different structure for controlling the lateral movement of the lifting seat, and the main difference between this embodiment and the specific embodiment 1 is that: in this embodiment, two ends of the frame are respectively provided with a direct-acting pushing cylinder (air cylinder, hydraulic cylinder, etc.), and output rods of the two direct-acting pushing cylinders are respectively connected with two opposite ends of the lifting seat. By extending the output rod of one of the linear motion pushing cylinders, the output rod of the other linear motion pushing cylinder is correspondingly shortened, so that the transverse position of the lifting seat is controlled.

The embodiment 5 of the movable hoisting device provided by the utility model comprises:

the objective of the present embodiment is to provide different connection modes between the lifting seat and the first lifting mechanism, and the main difference between the present embodiment and the specific embodiment 1 is that: in the embodiment, two frames are provided, the two frames are fixedly connected through a lifting frame, and the two frames and the lifting frame jointly form a door-shaped frame. The lifting frame and the lifting seat are integrally formed, the lifting frame is a part of the lifting seat, the lifting seat can not transversely slide, and the screw rods of the two turbine screw rod lifters are respectively and fixedly connected to the two ends of the lifting seat.

Specific example 6 of the mobile hoisting device provided by the utility model:

the purpose of this embodiment is to provide a hoist and hoist seat hoist different setting modes, this embodiment mainly differs from embodiment 1 in that: in this embodiment, the hoist winch and the hoist seat winch are disposed on the same side of the hoist, a first fixed pulley, a second fixed pulley and two guide pulleys are disposed on one side of the hoist, and a third fixed pulley is disposed on the other side of the hoist.

Specific embodiment 7 of the mobile lifting device provided by the utility model:

the purpose of this embodiment is to provide a different lifting appliance, and the main difference between this embodiment and the specific embodiment 1 is that: in this embodiment, the spreader does not include a rotating platform.

The embodiment 8 of the movable hoisting device provided by the utility model comprises:

the purpose of this embodiment is to provide a different portable hoist device, and this embodiment is mainly different from embodiment 1 in that: in this embodiment, the mobile lifting device does not include a material supporting mechanism, and the material is always in a lifted state when the material is transported.

The utility model provides a specific embodiment 9 of a movable hoisting device:

the present embodiment aims to provide a different wheel mechanism, and the main difference between this embodiment and embodiment 1 is that: in this embodiment, the wheel mechanism is only four universal wheels provided at four corners of the bottom of the frame.

It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited to the above-mentioned embodiments, but may be modified without inventive effort or equivalent substitution of some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a portable hoist device, includes the frame, installs the hoist and mount seat on the frame, is equipped with the first elevating system that is used for controlling hoist and mount seat to go up and down on the frame, is connected with the hoist on the hoist and mount seat, and the hoist is including being used for the connection structure who is connected with the object by lifting by crane, its characterized in that, portable hoist device still includes the second elevating system that is used for direct control connection structure to go up and down or is used for controlling hoist to go up and down and then indirectly control connection structure to go up and down.

2. The mobile lifting device of claim 1, wherein the lifting seat comprises at least one set of fixed pulley blocks, each set of fixed pulley blocks comprises a rope inlet fixed pulley and a rope outlet fixed pulley, a guide pulley is further arranged on the frame, a lifting pulley is arranged on the lifting appliance, a lifting appliance winch is further arranged on the frame, the lifting appliance winch comprises a lifting appliance lifting rope, and the lifting appliance lifting rope sequentially bypasses the guide pulley, the rope inlet fixed pulley, the lifting pulley and the rope outlet fixed pulley and is then fixed on the frame to control lifting of the lifting appliance.

3. The mobile lifting device of claim 2, wherein the portion of the lifting appliance lifting rope that passes around the rope inlet fixed pulley, the lifting pulley and the rope outlet fixed pulley is polygonal.

4. A mobile lifting device as claimed in claim 2 or 3, wherein the lifting seat is slidably mounted on the top end of the frame, the frame is further provided with a lifting seat hoist and a reversing structure, the reversing structure comprises a first fixed pulley, a second fixed pulley and a third fixed pulley, the first fixed pulley and the second fixed pulley are arranged on one side of the frame, the third fixed pulley are arranged on the other side of the frame, the lifting seat hoist comprises two lifting seat lifting ropes, one lifting seat lifting rope is connected to one side of the lifting seat after bypassing the first fixed pulley, and the other lifting seat lifting rope is connected to the other side of the lifting seat after bypassing the second fixed pulley and the third fixed pulley in sequence so as to control the sliding of the lifting seat.

5. The movable hoisting device as claimed in claim 4, wherein the frame is a door-shaped frame, the three guide pulleys are positioned on the same side of the frame, the three guide pulleys are divided into two side guide pulleys and a middle guide pulley positioned between the two side guide pulleys, the hoisting seat comprises two fixed pulley blocks, and the two hoisting ropes of the hoisting tool bypass different fixed pulley blocks after respectively bypassing the two side guide pulleys; the middle guide pulley forms the third fixed pulley, and the lifting appliance winch and the lifting seat winch are respectively positioned at two sides of the frame.

6. The mobile lifting device of claim 1, wherein the lifting seat is slidably matched with the frame in a horizontal plane, the frame is further provided with a lifting seat winch and a reversing structure, the reversing structure comprises a first fixed pulley, a second fixed pulley and a third fixed pulley, the first fixed pulley and the second fixed pulley are arranged on one side of the frame, the third fixed pulley are arranged on the other side of the frame, the lifting seat winch comprises two lifting seat lifting ropes, one lifting seat lifting rope is connected to one side of the lifting seat after bypassing the first fixed pulley, and the other lifting seat lifting rope is connected to the other side of the lifting seat after bypassing the second fixed pulley and the third fixed pulley in sequence so as to control the sliding of the lifting seat.

7. A mobile lifting device according to any one of claims 1 to 3, wherein the frame comprises a frame body and a lifting frame mounted on top of the frame body, the lifting seat is mounted on the lifting frame, and the first lifting mechanism is mounted on the frame to indirectly control lifting of the lifting seat by driving the lifting frame to move up and down.

8. A mobile lifting device according to any one of claims 1-3, wherein the lifting appliance comprises a top plate and a swivel platform connected to the lower part of the top plate for rotating the connection structure.

9. A mobile lifting device according to any one of claims 1-3, wherein the frame is further connected with a material supporting mechanism for placing the lifted object, the material supporting mechanism comprises a supporting plate and a material supporting table arranged on the upper portion of the supporting plate, the supporting plate is in sliding fit with the frame in the longitudinal direction, and the material supporting table is in sliding fit with the supporting plate in the transverse direction.

10. A mobile lifting device according to any one of claims 1-3, wherein the bottom of the frame is provided with moving wheels and supporting wheels, the moving wheels are arranged at four corners of the bottom of the frame, the supporting wheels are respectively arranged between the moving wheels at two ends of the bottom of the frame, the frame is further provided with straight-motion driving mechanisms, the output ends of the straight-motion driving mechanisms are respectively arranged vertically and respectively connected with the moving wheels, detecting mechanisms for detecting the height of the frame from the ground are further arranged around the moving wheels, and the straight-motion driving mechanisms can adjust the positions of the moving wheels according to the data of the detecting mechanisms.