CN118929481B

CN118929481B - Portable mobile lifting device

Info

Publication number: CN118929481B
Application number: CN202410841643.2A
Authority: CN
Inventors: 李国伟; 王翌鑫; 李健权; 王永刚; 王文武
Original assignee: Sinohydro Bureau 6 Co Ltd
Current assignee: Sinohydro Bureau 6 Co Ltd
Priority date: 2024-06-27
Filing date: 2024-06-27
Publication date: 2025-12-09
Anticipated expiration: 2044-06-27
Also published as: CN118929481A

Abstract

The invention discloses a movable portable lifting device which comprises a base, a support column, a cross beam and an operating assembly, wherein the support column is provided with a first rotating shaft, the middle part of a beam body of the cross beam is hinged to the support column through a horizontal second rotating shaft, the operating assembly is arranged at one end of the cross beam and comprises an operating rod, a rope disc and a rocker arm limiting part, the rocker arm limiting part comprises a vertical rod, a cross rod and an extension rod, and the tail end of the extension rod is provided with a hook-shaped component used for keeping the distance between rocker arms of the rope disc. The device has overcome current hoisting device and is not applicable to narrow and small work place, rely on the power, turn to inconvenient scheduling problem, through set up first pivot and connect the crossbeam with the second pivot in the middle of the pillar, realize the vertical and horizontal free rotation of crossbeam, flexible operation is high-efficient, through the cooperation between rope reel rocking arm and the rocking arm locating part, can realize packing up the lifting rope fast and operate the crossbeam in order and carry out the heavy object transport, occupation space is little, convenient operation is high-efficient moreover, do not rely on the power, one just can accomplish the heavy object transport.

Description

Portable mobile lifting device

Technical Field

The invention relates to the technical field of construction equipment, in particular to a movable portable lifting device.

Background

In engineering construction, it is often necessary to carry objects, and when some objects having a large weight are moved, particularly when carrying up and down, it is necessary to use hoisting equipment.

Lifting equipment is generally a standard of a construction site, however, the existing lifting equipment usually has a large volume, a large movable space is needed, and in a place with a small working surface, the large mechanical equipment is limited to enter and use, or when the engineering quantity is small, the large mechanical equipment is not necessary to use, because the engineering quantity is poor in economical efficiency, the manual transportation is inefficient, the time consumption is too long, the construction period is delayed, and the lifting equipment is needed, but the equipment is required to have a small volume and good lifting and transporting performance. Chinese patent publication No. CN205045732U, publication day is 24 of 2016, the name is "a portable hoisting device", which discloses a hoisting device, including the machine case, the jack-up mast, hoist and mount arm, hoist mechanism, hoist motor is through work after the battery power supply, hoist and mount heavy object is carried out through wire rope drive lifting hook up-and-down motion, however the hoisting device that this patent provided uses the hoist engine to hoist, can't guarantee in the hoist and mount operation that battery electric quantity is enough, and hoist position often inconvenient to carry out the electric wire arrangement, the suitability of device is limited, and this device uses the lifting hook to carry out up-and-down motion, and when carrying the object, often need carry out operations such as loading, stacking in addition to upwards promoting the object, the inflexible steering mode leads to the operation very inconvenient.

Disclosure of Invention

The invention solves the problems that the existing lifting device is not suitable for a narrow work place, relies on power supply, is inconvenient to turn, and the like, provides a movable portable lifting device, realizes the vertical and horizontal free rotation of the cross beam by arranging a first rotating shaft in the middle of a support column and connecting the cross beam by a second rotating shaft, the device is flexible and efficient in operation, through the cooperation between the rope disc rocker arm and the rocker arm limiting piece, the lifting rope can be rapidly retracted, the weight can be carried by operating the cross beam in a homeopathic mode, the occupied space is small, the operation is convenient and efficient, the power supply power is not relied on, and the weight can be carried by one person.

In order to achieve the above purpose, the present invention adopts the following scheme:

a mobile portable lifting device comprising:

a base;

the support column comprises a lower end column body and an upper end column body, the lower end column body is fixed on the base, and the upper end column body is coaxially and rotatably connected to the lower end column body through a first rotating shaft;

The middle part of the beam body of the beam is hinged to the upper end column body through a horizontal second rotating shaft, one end of the beam is provided with a first supporting pulley, and the other end of the beam is provided with an operating assembly;

The operation assembly comprises an operation rod, rope discs and rocker arm limiting parts, wherein the operation rod is horizontally arranged and fixed with the cross beams in a mutually perpendicular mode, a pair of mandrel symmetrical connection of the rope discs is arranged at two ends of the operation rod, a hanging rope wound in each rope disc passes through a first supporting pulley and then hangs a heavy object to be transferred, the rotating directions of the two rope discs when the two rope discs are placed in a rope mode are opposite, rope disc rocker arms are arranged on the upper sides of the two rope discs respectively, the rocker arm limiting parts comprise vertical rods, cross rods and extension rods, the lower ends of the vertical rods are connected with the cross beams in a sleeved mode in a sliding mode, the upper ends of the vertical rods are connected with the middle of the cross rods, the extension rods are connected with two ends of the cross rods respectively and extend towards the direction of the rope discs, and hook-shaped members used for keeping the distance between the rope disc rocker arms are arranged at the tail ends of the extension rods.

Preferably, the two rope reels and the central spindles thereof are integrally arranged, the central spindles rotatably penetrate through the operating rod, and gears with the same size capable of mutually driving are arranged at the lower ends of the two central spindles.

Preferably, the gears of the two mandrels are indirectly driven by an even number of drive gears of the same size.

Preferably, a second supporting pulley for supporting the lifting rope is arranged in the middle of the cross beam.

Preferably, the tail end of the lifting rope is connected to the lower side of the cross beam, a movable pulley is slidably arranged on the lifting rope, a movable hook is connected to the movable pulley, and a hanging basket for placing heavy objects is hung on the movable hook.

Preferably, a fixed hook is arranged at one end of the cross beam, which is close to the weight, and the tail end of the lifting rope is hung on the fixed hook.

Preferably, one end of the cross beam connected with the operation rod is provided with a counterweight hook for hanging a counterweight.

Preferably, a blocking block for limiting the sliding distance of the rocker arm limiting piece is arranged on the cross beam between the vertical rod of the rocker arm limiting piece and the support post.

Preferably, a movable pulley block and a telescopic support piece are arranged under the base, and the telescopic support piece comprises a support pad at the lower end and an adjustable threaded rod with the upper end screwed into the base.

The lifting device has the advantages that (1) through the arrangement of the longitudinal first rotating shaft and the transverse second rotating shaft, the transverse and vertical free rotation of the cross beam can be realized, the lifting and the translation of objects can be carried out, the operation mode is flexible and efficient, (2) through the forward and backward sliding of the rocker arm limiting piece, the rope disc rocker arm is limited or unlocked, the rope disc rocker arm can be used as a handle for operating the cross beam after being used for tightening a lifting rope, the lifting operation is compact in structure and more coherent in operation, the lifting operation can be completed by only one person, the device is simple in structure and small in size, occupies small space, can conveniently enter a small space to carry out work through the arrangement of the pulleys on the base, has high economic applicability when carrying objects with small single weight, and (4) the device utilizes the double-rope disc structure to unify the operation positions for tightening the lifting rope, pushing the lifting and the objects to be the rope disc rocker arm, does not need to use an additional energy supply device, and can be used at any time and is more suitable for a working environment with limited conditions.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic diagram of the front structure of the present invention;

fig. 3 is a schematic top view of the present invention.

In the figure, a base 1, a strut 2, a first rotating shaft 3, a cross beam 4, a second rotating shaft 5, a first supporting pulley 6, an operating rod 7, a rope reel 8, a rope reel rocker arm 9, a vertical rod 10, a cross rod 11, an extension rod 12, a hook member 13, a lifting rope 14, a gear 15, a second supporting pulley 16, a movable pulley 17, a movable hook 18, a hanging basket 19, a fixed hook 20, a counterweight hook 21, a blocking block 22, a movable pulley block 23 and a telescopic support 24 are shown.

Detailed Description

The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.

It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

In the description of the present invention, the terms "mounted," "connected," and "disposed" are to be construed broadly as being either fixedly connected, disposed, or detachably connected, disposed, or integrally connected, unless otherwise specifically indicated and defined, as conventional methods and materials are available commercially. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. The terms "transverse," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for convenience in describing and simplifying the description of the present invention based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.

As shown in fig. 1 to 3, the portable lifting device provided by the present invention includes:

The base 1 is generally rectangular, has larger basis weight so that the device is more stable in the lifting process, can be conveniently transported in a trolley or self-carrying pulley mode, can be stably placed on the ground without shaking, and can be provided with a horizontal balance adjusting structure at the bottom to adapt to different terrains.

The support column 2 comprises a lower end column body and an upper end column body, wherein the lower end column body is fixed on the base 1, the upper end column body is coaxially and rotatably connected to the lower end column body through a first rotating shaft 3, the lower end column body of the support column 2 and the base 1 can be integrally connected, the column body is divided into an upper part and a lower part from the middle and is connected through the first rotating shaft 3, the first rotating shaft 3 is vertically arranged at the center position of the support column 2, and transverse swinging of the cross beam 4 is realized through rotation of the upper end column body on the lower end column body when the device is used.

The middle part of the beam body of the beam 4 is hinged to the upper end column body through a horizontal second rotating shaft 5, one end of the beam 4 is provided with a first supporting pulley 6, the other end of the beam 4 is provided with an operation assembly, the top of the upper end column body is of a structure of two opposite supporting plates, the second rotating shaft 5 is arranged between the supporting plates and penetrates through the middle part of the beam 4, the specific position of the beam 4 is adjusted and designed according to the actual use requirement, so that the beam meets the lever structure requirement of a lifting device, and one end of the beam 4 provided with the first supporting pulley 6 is used for hanging heavy objects.

The operation assembly comprises an operation rod 7, rope reels 8 and rocker arm limiting parts, wherein the operation rod 7 is horizontally arranged and is fixed with the cross beam 4 in a mutually perpendicular mode, a pair of mandrel symmetrical connection of the rope reels 8 is arranged at two ends of the operation rod 7, a hanging rope 14 wound in each rope reel 8 is used for hanging a heavy object to be transferred after passing through the first supporting pulley 6, rope reel rocker arms 9 are arranged on the upper sides of the two rope reels 8 in opposite rotation directions when the two rope reels 8 are placed in a rope mode, the rocker arm limiting parts comprise vertical rods 10, cross rods 11 and extension rods 12, the lower ends of the vertical rods 10 are in sliding sleeve connection with the cross beam 4, the upper ends of the vertical rods are connected with the middle of the cross rods 11, the extension rods 12 are connected to two ends of the cross beam 11 respectively and extend towards the direction of the rope reels 8, and hook-shaped members 13 used for keeping the distance between the rope reels 9 are arranged at the tail ends of the extension rods 12. The beam 4 is connected with one end of the operating rod 7, a structure for hanging weights can be arranged, the operating rod 7 is a rectangular rod, a mandrel of the rope drum 8 penetrates through a rod body of the operating rod 7, at least one part of the rope drum 8 and the mandrel or the mandrel and the operating rod 7 can rotate relatively, a vertical rod 10 of a rocker arm limiting piece is sleeved on the beam 4, the rope drum 9 is closed or far away from the rope drum 8 by sliding on the beam 4, the maximum distance and the minimum distance are formed by rotating a pair of rope drums 8, the distance between a pair of extending rods 12 is between the maximum distance and the minimum distance, the value of the mandrel distance close to the two rope drums 8 is optimal, a hook-shaped member 13 at the tail end of the extending rod 12 is of a structure which is bent inwards twice at right angles, when the operating rod 7 is pressed down to enable the beam 4 to pass through a horizontal position, the extending rod 12 naturally slides towards the rope drum 8 and hooks the rope drum rocker 9 from two sides, the rope drum rocker 9 is prevented from rotating towards the direction of a rope placing, the extending length of the rope 14 is kept to hang an object, when the object is placed down, the operating rod 7 is rotated, the hook-shaped member 9 is enabled to be separated from the rope drum 12 and the rope drum 12 is reset, and the rope drum 12 can be rotated, and the rope hook member 12 is placed from the hook member 13.

When the device is used for lifting and carrying heavy objects, the rope reel rocker arm 9 is firstly rocked to release the rope, so that the lifting rope 14 is in a loose state, the supporting body with the heavy objects is placed on the ground, the upper end of the supporting body is hung on the lifting rope 14, the rope reel rocker arm 9 is rocked to tighten the lifting rope 14 to a proper length, the rope reel rocker arm 9 is continuously held, the operating rod 7 is pressed down, the rocker arm limiting parts slide to the rope reel 8, the hook members 13 at the two ends hook the rope reel rocker arm 9, and the rope reel 8 cannot rotate. Taking paying off from opposite sides of the two rope reel 8 as an example, when the rope reel rocker arm 9 rotates to a forward position, it is clamped into the rocker arm limiting member, and due to the tension of the lifting rope 14 under the action of the weight, the left rope reel rocker arm 9 has a tendency to rotate anticlockwise, the right rope reel rocker arm 9 has a tendency to rotate clockwise, so that the distance between the two rope reel rocker arms has a tendency to expand, but the rope reel rocker arm 9 cannot continue to pull away by the distance limited by the rocker arm limiting member, so that the rope reel 8 cannot rotate. Then slightly pressing down the operating rod 7 for a certain distance to lift the heavy object off the ground, rotating the cross beam 4 to transfer the heavy object to the target position, then putting down the heavy object, lifting the operating rod 7 to loosen the lifting rope 14, rotating the rope disc rocker 9 towards the direction of approaching the middle to separate the rocker limiting part and resetting in a sliding manner, taking down the heavy object from the lifting rope 14, and then turning the cross beam 4 back to the vicinity of the heavy object to be carried, so that the lifting and carrying of the heavy object can be realized through repeated operation.

The device can realize free transverse and vertical rotation of the cross beam 4 through the arrangement of the first longitudinal rotating shaft 3 and the second transverse rotating shaft 5 when in use, so that objects can be lifted and translated, the operation mode is flexible and efficient, the rope disc rocker 9 can be limited or released at intervals by sliding the rocker limiting parts forwards and backwards for limiting or unlocking the rope disc rocker 9, the rocker can be used as a handle for operating the cross beam 4 after being used for tightening the lifting rope 14, the device is compact in structure and more coherent in operation, lifting operation can be completed by only one person, the device is simple in structure and small in size, and compared with a hoisting structure in a frame shape, the lever structure used by the device occupies small space, can conveniently enter a small space for working through the arrangement of pulleys on the base 1, is suitable for carrying objects with small single weight, the use and transportation cost of the device are reduced, the device is used for unifying the operation positions of tightening the lifting rope 14 and pushing down the lifting and carrying objects into the rope disc rocker 9, and the device is free of using an energy supply device at any time, and is applicable to more suitable for limited working environments.

In another technical solution, as shown in fig. 3, the two rope reels 8 and the spindles thereof are all integrally arranged, the spindles rotatably penetrate through the operating rod 7, and the lower ends of the two spindles are provided with gears 15 with the same size capable of mutually driving. The rope reel 8 and the mandrel thereof synchronously rotate, the rotation of the lower end of the mandrel is limited by the gears, the rotation mode of the rope reel 8 is limited, the same-size gears 15 are used for transmission, the constant-speed rotation of a pair of rope reels 8 can be realized, and the lifting ropes 14 controlled by the two rope reels 8 are synchronously wound and unwound.

The gears 15 of the two mandrels are indirectly driven by an even number of drive gears 15 of the same size. The rotation directions of the two rope reels 8 can be guaranteed to be opposite through the transmission of an even number of gears 15, if the winding and unwinding positions of the rope reels 8 are in opposite positions, the left rope reel 8 is rotated clockwise and the right rope reel 8 is rotated anticlockwise, the tightening of the lifting rope 14 is achieved, the loosening of the lifting rope 14 is achieved through the reverse operation, the force transmission is achieved through the meshing of the gears 15, the force difference of two hands can be balanced through the cooperation between the two rope reel rocker arms 9, and better operation experience is achieved. The size of a single gear 15 can be reduced by using an indirect transmission mode, the extension amount of the gear 15 to the tail end of the cross beam 4 is reduced, and the error collision between the gear 15 and an operator is avoided.

In another embodiment, as shown in fig. 2, a second supporting pulley 16 for supporting the lifting rope 14 is disposed at the middle of the beam 4. The second supporting pulley 16 is located between the rope reel 8 and the first supporting pulley 6, and can be arranged on the cross beam 4 at the position of the second rotating shaft 5, the lifting rope 14 can be supported relative to the height of the cross beam 4 to make the lifting rope 14 turn to a certain degree, the pulling trend of the lifting rope 14 can be changed by arranging the second supporting pulley 16, the sliding of the lifting rope 14 can be prevented by a distance closer to the rope reel 8, and the supporting force to the lifting rope 14 can be shared by the first supporting pulley 6.

The end of the beam 4 connected with the operating rod 7 is provided with a counterweight hook 21 for hanging a counterweight. By arranging the counterweight hooks 21, a certain amount of counterweight can be hung, the weight range of the liftable counterweight is enlarged, and the operation of staff is more labor-saving.

In another technical scheme, as shown in fig. 1, the tail end of the lifting rope 14 is connected to the lower side of the cross beam 4, a movable pulley 17 is slidably arranged on the lifting rope 14, a movable hook 18 is connected to the movable pulley 17, and a hanging basket 19 for placing a heavy object is hung on the movable hook 18. By connecting the ends of the lifting rope 14 to the lower side of the cross beam 4 and using the movable pulley 17, the tension can be shared by the two ends of the lifting rope 14, and the lifting process is more stable.

The end of the cross beam 4, which is close to the weight, is provided with a fixed hook 20, and the tail end of the lifting rope 14 is hung on the fixed hook 20. The fixed hook 20 is positioned at the lower side of the tail end of the cross beam 4, and the lifting rope 14 can be hung on or taken off from the fixed hook 20, so that the movable pulley 17 is convenient to replace and adjust.

In another technical scheme, a blocking block 22 for limiting the sliding distance of the rocker arm limiting piece is arranged on the cross beam 4 between the vertical rod 10 of the rocker arm limiting piece and the support post 2. The blocking piece 22 blocks the vertical rod 10 of the rocker arm limiting piece, and prevents the rocker arm limiting piece from being far away from the rope reel 8 to influence the operation efficiency.

The movable pulley block 23 and the telescopic support piece 24 are arranged under the base 1, and the telescopic support piece 24 comprises a support pad at the lower end and an adjustable threaded rod with the upper end screwed into the base 1. Through adjusting the length of exposing of threaded rod, can switch and remove assembly pulley 23 or flexible support 24 and touch the ground, conveniently carry out quick removal of device or steadily place.

The number of equipment and the scale of processing described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be readily apparent to those skilled in the art.

Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims

1. A mobile portable lifting device, comprising:

a base;

2. The movable portable hoisting device according to claim 1, wherein both rope reels are integrally provided with their spindles, the spindles rotatably penetrate the operating rod, and gears of the same size are provided at lower ends of both spindles, which are capable of mutually transmitting.

3. The mobile portable lifting device of claim 2 wherein gears of two of the spindles are indirectly driven by an even number of drive gears of the same size.

4. The movable portable lifting device of claim 1, wherein a second support sheave for supporting the hoist rope is provided at a middle portion of the cross beam.

5. The movable portable lifting device according to claim 1, wherein the tail end of the lifting rope is connected to the lower side of the cross beam, a movable pulley is slidably arranged on the lifting rope, a movable hook is connected to the movable pulley, and a hanging basket for placing heavy objects is hung on the movable hook.

6. The movable portable lifting device of claim 5, wherein a fixed hook is provided at an end of the cross beam adjacent to the weight, and wherein the sling end is suspended from the fixed hook.

7. The movable portable lifting device according to claim 1, wherein one end of the cross beam connected with the operation rod is provided with a counterweight hook for hanging a counterweight.

8. The movable portable lifting device according to claim 1, wherein a blocking piece for limiting the sliding distance of the rocker arm limiting piece is arranged on a cross beam between the vertical rod of the rocker arm limiting piece and the support post.

9. The mobile portable lifting device of claim 1, wherein a mobile pulley block and a telescoping support are provided under the base, the telescoping support comprising a support pad at a lower end and an adjustable threaded rod threaded into the base at an upper end.