CN115626557A

CN115626557A - Assembled building component hoisting device and hoisting method thereof

Info

Publication number: CN115626557A
Application number: CN202211265570.4A
Authority: CN
Inventors: 洪文聪; 吴毅峰; 何秋敏; 许志坤; 吕福荣
Original assignee: Fujian Yucheng Construction Engineering Co ltd
Current assignee: Fujian Yucheng Construction Engineering Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-01-20

Abstract

The invention relates to the technical field of constructional engineering instruments and discloses an assembly type building component hoisting device and a hoisting method thereof. According to the invention, the limiting part is arranged at the bottom end of the hanging plate, when the prefabricated part needs to be unhooked, the hanging tool is driven to move to the position below the limiting part through the winding operation of the hanging rope, the hanging tool is in threaded sleeve connection with the movable ring, and meanwhile, the movable ring is driven to rotate and vertically move upwards by utilizing the motor and the parts thereof arranged in the limiting part, so that the hanging tool clamped in the installation point of the prefabricated part can be automatically taken out, the hanging efficiency is effectively improved, and the safety of constructors is ensured.

Description

Assembled building component hoisting device and hoisting method thereof

Technical Field

The invention relates to the technical field of constructional engineering equipment, in particular to an assembly type building component hoisting device and a hoisting method thereof.

Background

The prefabricated building is a building form formed by assembling prefabricated components on a construction site, has the advantages of convenience in transportation, simplicity in assembly and the like, and is widely applied to the building industry. Prefabricated components of the fabricated building are firstly processed in advance in a factory, then transported to an assembly site, and then assembled according to certain operation specifications by using a hoisting device. The hoisting device generally comprises a lifting rope part installed on a lifting plate and a lifting appliance tied at one end of the lifting rope, and meanwhile, installation points matched with the lifting appliance are reserved on prefabricated parts processed in a factory, so that the lifting appliance can be conveniently installed on the prefabricated parts on the assembly site in the following process, and the prefabricated parts can be hoisted.

However, the existing hoisting device has some defects in the using process: firstly, as part of the prefabricated parts are placed in the vertical direction after hoisting is finished, constructors need to climb to high altitude to disassemble the hoisting tool, so that the construction difficulty is high, the danger is high, and the hoisting construction efficiency is low; secondly, in the hoisting process, because the prefabricated part is in a suspended state, the prefabricated part is easy to shake and deflect at a certain angle, a plurality of lifting ropes are mutually wound and rubbed, the service life of the lifting ropes is shortened, and the hoisting safety is reduced.

Disclosure of Invention

Aiming at the defects of the existing hoisting device in the use process in the background technology, the invention provides the assembled building component hoisting device and the hoisting method thereof, which have the advantages of promoting the automatic disassembly of a hoisting tool, enhancing the hoisting safety, preventing a plurality of hoisting ropes from being intertwined and prolonging the service life of the hoisting tool, and solve the technical problems in the background technology.

The invention provides the following technical scheme: an assembly type building component hoisting device comprises a hoisting plate, wherein two sides of the top end of the hoisting plate are fixedly connected with a fixing part, the hoisting plate is connected with a hoisting machine body through the fixing part, a coiling part is fixedly connected with the bottom end of the hoisting plate, the surface of the coiling part is fixedly connected with one end of a hoisting rope, the other end of the hoisting rope is fixedly connected with the top end of a hoisting tool, external threads are arranged on the lower surface of the hoisting tool, side blocks are embedded in two sides of the upper part of the hoisting tool, the bottom end of the hoisting tool is clamped with a mounting point of a prefabricated component, a limiting part is fixedly connected with the bottom end of the hoisting plate on one side of the hoisting rope, a vertical hole is formed in the transverse part of the limiting part, the wall surfaces of the limiting parts on the upper and lower parts in the vertical hole are movably connected with one end of a supporting bar, and the other end of the supporting bar is fixedly connected with the outer wall of a movable ring, the outer wall and the rack fixed connection of activity ring, the inner wall of activity ring be equipped with the internal thread of external screw thread looks adaptation, the movable hole has been seted up to the both sides of activity ring, and the activity ring cup joints through movable hole and moving part activity, is located through rubber membrane fixed connection between activity ring and the moving part of the upper and lower side of movable hole inner chamber, the activity hole inner chamber is provided with the spring, and is connected activity ring and moving part through the spring, the hole has been seted up to the inside of moving part, and the hole has three port, two ports and the movable hole intercommunication of hole, and another port and the rubber spare intercommunication of hole, one side fixed connection of rubber spare and moving part, the transverse groove has been seted up to the locating part, and is provided with the control in the transverse groove.

Preferably, the control comprises motor, montant, pinion rack, the top fixed connection of motor and the horizontal part of locating part, the bottom of motor and the one end swing joint of montant, the other end of montant pass the top of locating part and contact with the inside bottom surface of cross slot, be located the inside montant outer wall fixedly connected with pinion rack of cross slot.

Preferably, the cross section of the lifting appliance is in the shape of an upper trapezoid and a lower rectangle, the upper trapezoid is narrow at the top and wide at the bottom, the radius of the inner ring of the movable ring is larger than the radius of the lower part of the lifting appliance, one lifting appliance is internally provided with two side blocks, and the two side blocks have different magnetism.

Preferably, the top end of one lifting appliance is fixedly connected with two lifting ropes, the two lifting ropes are oppositely arranged, and the positions of the lifting ropes correspond to the positions of the side blocks.

Preferably, the sectional shape of activity hole is the type of protruding font, the sectional shape of moving part is the type of protruding font, and the moving part one end that is close to the activity ring outside is short compared in the moving part other end, the length of activity hole is short compared in the length of moving part, one the inside of activity ring is equipped with two moving parts, and two moving parts have different magnetism, and the magnetism that is close to each other between side piece and the moving part is the same.

Preferably, six racks are arranged on the outer side of one movable ring, and the six racks and the two movable pieces are arranged around the movable ring together.

Preferably, the rubber part is made of elastic rubber, a telescopic bulge is arranged on the surface of the rubber part, the bulge is connected with the internal thread, and the bulge and the internal thread form a complete thread shape together.

Preferably, the hoisting method of the assembly type building component hoisting device comprises the following steps:

pulling the coiling piece, moving the lifting rope downwards, clamping the lifting appliance with a mounting point of the prefabricated part, and simultaneously moving two moving pieces in one moving ring inwards under the action of magnetic force and spring elasticity between the two moving pieces, so that the rubber piece on the surface of the moving piece is contacted with the lifting rope and forms a limiting effect on the lifting rope, the two lifting ropes are always kept vertical, and the lifting in place is realized on the whole;

secondly, starting a crane body to suspend and hoist the prefabricated part, transferring the prefabricated part to an assembly position from a transportation position, correcting the position of the prefabricated part after the prefabricated part reaches the assembly position, and fixedly supporting the prefabricated part;

thirdly, when the lifting appliance is disassembled, firstly, the lifting appliance body is controlled to enable the lifting plate to descend, the winding piece is controlled to enable the lifting rope to contract, the lifting plate stops descending until the top end of the lifting appliance enters the movable ring, at the moment, a magnetic force effect is generated between the movable piece and the side block, the movable piece rotates and slightly adjusts the angle of the movable ring when the movable piece is not meshed with the toothed plate, so that the bottom opening of the internal thread is aligned with the top opening of the external thread, meanwhile, the movable piece moves outwards along the movable hole until the toothed plate is meshed with the movable piece, meanwhile, the surface of the rubber piece generates bulges, and the bulges are connected with the internal thread in shape to form a thread ring in the movable ring;

and fourthly, when the moving part is in a meshed state with the toothed plate, the inductor receives an induction signal and starts the motor, so that the toothed plate rotates to drive the movable ring to rotate, the internal thread and the external thread continuously move to realize vertical shifting of the lifting appliance, and then the bottom end of the lifting appliance is separated from a clamping state with the mounting point of the prefabricated component, and the lifting appliance is automatically disassembled.

The invention has the following beneficial effects:

1. according to the invention, the limiting part is arranged at the bottom end of the hanging plate, one limiting part corresponds to one lifting appliance, when a prefabricated part needs to be unhooked, the lifting appliance is driven to move to the position below the limiting part through the winding operation of the lifting rope, the lifting appliance is in threaded sleeve connection with the movable ring, and meanwhile, the movable ring is driven to rotate and vertically move upwards by utilizing the motor and parts thereof arranged in the limiting part, so that the lifting appliance clamped in the installation point of the prefabricated part can be automatically taken out, a constructor does not need to climb to a high place to perform dismounting operation, the lifting efficiency is effectively improved, and the safety of the constructor is ensured.

2. According to the invention, the lifting ropes connected with one lifting appliance are all arranged in one movable ring, so that the rotation winding of a plurality of lifting ropes among a plurality of lifting appliances is effectively prevented, and meanwhile, in the process of lifting the prefabricated part, the movable part and the rubber part extend inwards under the action of the elastic force and the magnetic force, so that the lifting ropes are in contact with the rubber part, the movement of the lifting ropes in the movable ring is effectively limited, the phenomenon that the lifting ropes on the same external thread are wound with each other is prevented, the abrasion degree of the lifting ropes is reduced, the service life of the lifting ropes is prolonged, and the use safety of the lifting device is enhanced.

Drawings

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

FIG. 2 is an enlarged view of a portion of the structure A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of a portion of the structure shown at B in FIG. 1 according to the present invention;

FIG. 4 is a schematic view of a partial structure of the lifting device in threaded connection with the movable ring according to the present invention;

FIG. 5 is a schematic cross-sectional top view of the position-limiting element at the height of the inner hole in the state of FIG. 1;

fig. 6 is a schematic top view of the spreader of the present invention.

In the figure: 1. a hanger plate; 11. a fixing member; 2. rolling up the part; 21. a lifting rope; 3. a hanger; 31. an external thread; 32. a side block; 4. prefabricating a component; 5. a limiting member; 51. a supporting strip; 6. a motor; 61. a toothed plate; 7. a movable ring; 71. a rack; 72. an internal thread; 8. a movable member; 81. an inner bore; 82. a rubber film; 9. a rubber member.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-2 and 6, an assembled building component lifting device includes a lifting plate 1, two sides of the top end of the lifting plate 1 are fixedly connected to a fixing member 11, and the lifting plate 1 is connected to a crane body through the fixing member 11, so that the lifting plate 1 can move up and down and left and right under the control of the crane body, and a prefabricated component 4 clamped with a lifting appliance 3 is transferred from a transportation place to an assembly place, the bottom end of the lifting plate 1 is fixedly connected to a winding member 2, the surface of the winding member 2 is fixedly connected to one end of a lifting rope 21, the other end of the lifting rope 21 is fixedly connected to the top end of the lifting appliance 3, that is, the top end of one lifting appliance 3 is fixedly connected to two lifting ropes 21, the two lifting ropes 21 are oppositely arranged, and the positions of the lifting ropes 21 correspond to the positions of side blocks 32, so as to strengthen the transverse restriction on the prefabricated component 4, and prevent the prefabricated component 4 from deflecting after being lifted to cause the lifting ropes 21 among the lifting appliances 3 to be mutually wound, the lifting rope 21 is effectively protected, the service life of the lifting rope 21 is prolonged, the profile of the lifting appliance 3 is in an upper trapezoid shape and a lower rectangle shape, the upper trapezoid shape is narrow at the top and wide at the bottom, the lifting appliance 3 can push the moving part 8 to move towards the outer side along the moving hole when entering the moving ring 7, so that the rubber part 9 is separated from the contact with the lifting rope 21, the space in the moving ring 7 is increased, a foundation is provided for the threaded sleeve connection of the side blocks 32 of the subsequent lifting appliance 3 and the internal thread 72, the radius of the inner ring of the moving ring 7 is larger than that of the lower part of the lifting appliance 3, the lifting appliance 3 can smoothly enter the moving ring 7, the external thread 31 is arranged on the surface of the lower part of the lifting appliance 3, the side blocks 32 are embedded in the two sides above the lifting appliance 3, two side blocks 32 are arranged in one lifting appliance 3, and the two side blocks 32 have different magnetism, so that the moving part 8 effectively moves outwards, the lifting appliance 3 can smoothly enter the movable ring 7 without being blocked by the movable piece 8 and the rubber piece 9, the movable ring 7 is slightly adjusted under the action of magnetic force between the movable piece 8 and the side block 32, the external thread 31 is further ensured to be aligned with the internal thread 72 and the bulge of the rubber piece 9, and the lifting appliance 3 is vertically lifted.

Referring to fig. 1, further, the bottom end of the hanger 3 is clamped with the mounting point of the prefabricated component 4.

Referring to fig. 1, 3-5, further, a limiting member 5 is fixedly connected to the bottom end of the hanging plate 1 at one side of the hanging rope 21, a vertical hole is formed at the transverse portion of the limiting member 5, the wall surfaces of the limiting member 5 at the upper and lower portions inside the vertical hole are movably connected to one end of a supporting bar 51, the other end of the supporting bar 51 is fixedly connected to the outer wall of the movable ring 7, the outer wall of the movable ring 7 is fixedly connected to racks 71, that is, six racks 71 are disposed on the outer side of one movable ring 7, and the six racks 71 and two movable members 8 are disposed together around the movable ring 7, when the movable member 8 moves outwards, the two movable members 8 are identical in shape to the racks 71, so as to effectively push the movable ring 7 to rotate, an internal thread 72 adapted to the external thread 31 is disposed on the inner wall of the movable ring 7, movable holes with a convex section shape are formed on both sides of the movable ring 7, and the movable ring 7 is movably sleeved with the movable member 8 through the movable holes, the sectional shape of the movable part 8 is convex, one end of the movable part 8 close to the outer side of the movable ring 7 is shorter than the other end of the movable part 8, the length of the movable hole is shorter than that of the movable part 8, a closed space formed by the rubber film 82, the movable part 8 and the movable ring 7 can be formed in the movable hole above and below the movable part 8, so that the rubber part 9 is pushed to contract or expand according to the volume of the closed space, two movable parts 8 are arranged in one movable ring 7, the two movable parts 8 have different magnetism, the magnetism between the side blocks 32 and the movable parts 8 which are close to each other is the same, when the lifting appliance 3 is inserted into the movable ring 7, the magnetic force between the side blocks 32 and the movable part 8 pushes the movable part 8 to move outwards for fixing, the movable ring 7 rotates for fine adjustment, and the alignment between the external thread 31 and the internal thread 72 is convenient, be located the activity hole inner chamber, through rubber membrane 82 fixed connection between activity ring 7 of below and the moving part 8, the activity hole inner chamber is provided with the spring, and be connected activity ring 7 and moving part 8 through the spring, this spring can make moving part 8 move to the inboard direction of activity ring 7 under the normality, hole 81 has been seted up to the inside of moving part 8, and hole 81 has three port, two ports and the activity hole intercommunication of hole 81, and another port and the rubber spare 9 intercommunication of hole 81, one side fixed connection of rubber spare 9 and moving part 8, rubber spare 9 is the elastic rubber material, the surface of rubber spare 9 is equipped with the telescopic arch, bellied shape meets with internal thread 72, and both constitute complete screw thread shape jointly, can get into behind the activity ring 7 at hoist 3, external screw thread 31 contacts with internal thread 72 and arch, realize the holistic vertical upward shifting up of hoist 3.

Please refer to fig. 3-4, further, a transverse groove is formed in the limiting part 5, and a control part is disposed in the transverse groove, the control part is composed of a motor 6, a vertical rod and a toothed plate 61, the motor 6 is fixedly connected to the top end of the transverse part of the limiting part 5, the bottom end of the motor 6 is movably connected to one end of the vertical rod, the other end of the vertical rod passes through the top end of the limiting part 5 and contacts with the inner bottom surface of the transverse groove, the toothed plate 61 is fixedly connected to the outer wall of the vertical rod inside the transverse groove, the vertical rod and the toothed plate 61 can rotate after the motor 6 is started, and since the toothed plate 61 is engaged with the movable part 8, the toothed plate 61 rotates and pushes the movable ring 7 to rotate, so as to realize the thread pushing of the movable ring 7 to the lifting appliance 3.

Fig. 3 and 4 are specific structural diagrams of the inside of the limiting member 5 when the lifting tool 3 is in different states, specifically, the state of fig. 3 is a state when the lifting tool 3 is lifted by the prefabricated member 4 and the lifting tool 3 does not enter the movable ring 7, at this time, both the two movable members 8 in the movable ring 7 are in an inward movement state, the movable members 8 are not meshed with the toothed plate 61, but push the rubber member 9 to contact with the lifting rope 21, and meanwhile, the protrusion in the rubber member 9 is in a contraction state, so that the surface of the rubber member 9 is smooth, and when the rubber member 9 limits the lifting rope 21, the friction force between the rubber member 9 and the lifting rope 21 is small; the state of fig. 4 is being dismantled for hoist 3, and the state when hoist 3 gets into the movable ring 7, two moving parts 8 in the movable ring 7 all are the outward moving state this moment, moving part 8 both with the meshing of pinion rack 61, make rubber 9 not contact with lifting rope 21 again, the arch in the rubber 9 is the inflation state simultaneously, make rubber 9 and internal thread 72 form complete screw thread shape, motor 6 starts to drive the movable ring 7 rotatory, hoist 3 vertically shifts up.

Example two:

a hoisting method of an assembly type building component hoisting device comprises the following steps:

firstly, please refer to fig. 1 and 3, pull the rolling element 2, move the lifting rope 21 downwards and clamp the lifting appliance 3 with the installation point of the prefabricated component 4, and at the same time, the two moving elements 8 in one moving ring 7 move inwards under the action of the magnetic force and the spring force between the two moving elements, so that the rubber element 9 on the surface of the moving element 8 contacts with the lifting rope 21 and forms a limit function for the lifting rope 21, so that the two lifting ropes 21 are always kept vertical, and the lifting in place is realized in a comprehensive way;

secondly, starting a crane body to suspend and hoist the prefabricated part 4, transferring the prefabricated part 4 from a transportation position to an assembly position, correcting the position of the prefabricated part 4 after the prefabricated part reaches the assembly position, and fixedly supporting the prefabricated part 4;

thirdly, referring to fig. 4, when the lifting appliance 3 is disassembled, firstly, the lifting appliance body is controlled to enable the lifting plate 1 to descend, the coiling piece 2 is controlled to enable the lifting rope 21 to contract, when the top end of the lifting appliance 3 enters the movable ring 7, the lifting plate 1 stops descending, at this time, a magnetic force effect is generated between the movable piece 8 and the side block 32, the movable piece 8 rotates and slightly adjusts the angle of the movable ring 7 when the movable piece 8 is not meshed with the toothed plate 61, so that the bottom end opening of the internal thread 72 is aligned with the top end opening of the external thread 31, meanwhile, the movable piece 8 moves outwards along the movable hole until the toothed plate 61 is meshed with the movable piece 8, and meanwhile, the surface of the rubber piece 9 generates a bulge, and the bulge is connected with the internal thread 72 to jointly form a complete thread inside the movable ring 7;

the fourth step, when moving part 8 and pinion rack 61 are the engaged state, the inductor receives inductive signal and starter motor 6 for pinion rack 61 is rotatory, because pinion rack 61 meshes with moving part 8 and rack 71 at rotatory in-process, thereby it is rotatory to drive movable ring 7, makes internal thread 72 and external screw thread 31 constantly move, realizes the vertical of hoist 3 and shifts up, and then makes the mounting point of hoist 3 bottom and prefabricated component 4 break away from the joint state, to sum up the realization to the automatic of hoist 3 dismantlement.

The using method of the invention has the following working principle:

a constructor pulls the coiling part 2 to move the lifting rope 21 downwards and clamp the lifting appliance 3 in the mounting point of the prefabricated part 4, meanwhile, two moving parts 8 in one movable ring 7 move inwards under the action of magnetic attraction and spring elasticity between the two moving parts, so that the rubber part 9 on the surfaces of the moving parts 8 is in contact with the lifting rope 21 to enable the two lifting ropes 21 to be kept vertical all the time, namely, the lifting rope 21 is limited to prevent the lifting safety from being reduced due to the mutual winding of the two lifting ropes 21, the lifting operation is in place, then the lifting appliance body is started to suspend and lift the prefabricated part 4, the prefabricated part 4 is transferred to an assembly position from a transportation position, and after the prefabricated part reaches the assembly position, the position of the prefabricated part 4 is corrected, and the prefabricated part 4 is fixedly supported;

when the prefabricated component 4 is completely and fixedly supported, and the lifting appliance 3 needs to be disassembled, firstly, the lifting appliance body is controlled to enable the lifting board 1 to descend, the coiling piece 2 is controlled to enable the lifting rope 21 to contract, the lifting appliance 3 stops descending the lifting board 1 until the top end of the lifting appliance enters the movable ring 7, at the moment, a magnetic force effect is generated between the movable piece 8 and the side block 32, the movable piece 8 rotates and slightly adjusts the angle of the movable ring 7 when the movable piece 8 is not meshed with the toothed plate 61, so that the bottom end opening of the internal thread 72 is aligned with the top end opening of the external thread 31, meanwhile, the movable piece 8 moves outwards along the movable hole until the toothed plate 61 is meshed with the movable piece 8, meanwhile, the surface of the rubber piece 9 generates bulges, the bulge shape is connected with the internal thread 72 to jointly form a complete thread inside the movable ring 7, then the inductor receives an induction signal that the movable piece 8 is meshed with the toothed plate 61, so as to start the motor 6, the toothed plate 61 rotates, as the toothed plate 61 is meshed with the toothed plate 8 and the rack 71 in the rotating process, thereby driving the movable ring 7 to rotate, the lifting appliance 72 and continuously moves with the internal thread, and further realizing the upward movement of the lifting appliance 3, and the automatic disassembly of the lifting appliance 3 in a vertical and automatic disassembly state of the prefabricated component 3.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an assembled building element hoist device, includes hanger plate (1), the top both sides and mounting (11) fixed connection of hanger plate (1), and hanger plate (1) are connected with the loop wheel machine body through mounting (11), its characterized in that: the bottom fixedly connected with of hanger plate (1) is rolled up piece (2), the surface of rolled up piece (2) and the one end fixed connection of lifting rope (21), the other end of lifting rope (21) and the top fixed connection of hoist (3), the below surface of hoist (3) is equipped with external screw thread (31), the top both sides of hoist (3) are embedded to have side piece (32), the bottom of hoist (3) and the mounting point joint of prefabricated component (4), be located hanger plate (1) bottom fixedly connected with locating part (5) of lifting rope (21) one side, be located locating part (5) horizontal part has seted up the perpendicular hole, be located the inside upper and lower locating part (5) wall of perpendicular hole and the one end swing joint of support bar (51), the other end of support bar (51) and the outer wall fixed connection of activity ring (7), the outer wall and the rack (71) fixed connection of activity ring (7), the inner wall of activity ring (7) is equipped with internal thread (72) with the adaptation with movable part (31), the both sides of activity ring (7) have seted up the both sides of activity ring (7) and are located through activity ring (8) movable part (8) and movable part (8) cup joint, the inner chamber (8), the activity hole inner chamber is provided with the spring, and is connected activity ring (7) and moving part (8) through the spring, hole (81) have been seted up to the inside of moving part (8), and hole (81) have three port, two ports and the activity hole intercommunication of hole (81), and another port and rubber spare (9) intercommunication of hole (81), one side fixed connection of rubber spare (9) and moving part (8), the cross slot has been seted up in locating part (5), and is provided with the control in the cross slot.

2. An assembly building element hoist device according to claim 1, characterized in that: the control comprises motor (6), montant, pinion rack (61), motor (6) and the top fixed connection of locating part (5) horizontal part, the bottom of motor (6) and the one end swing joint of montant, the other end of montant pass the top of locating part (5) and contact with the inside bottom surface of cross slot, be located the inside montant outer wall fixedly connected with pinion rack (61) of cross slot.

3. An assembly building element hoist device according to claim 1, characterized in that: the section shape of hoist (3) is last trapezoidal, rectangle down, and goes up trapezoidal shape and for going up narrow width down, the inner circle radius of activity ring (7) is big than the below radius in hoist (3), one hoist (3) inside is provided with two side pieces (32), and two side pieces (32) have different magnetism.

4. An assembly building element hoist device according to claim 1, characterized in that: the top end of the lifting appliance (3) is fixedly connected with two lifting ropes (21), the two lifting ropes (21) are arranged oppositely, and the positions of the lifting ropes (21) correspond to the positions of the side blocks (32).

5. An assembly building element hoist device according to claim 1, characterized in that: the section shape in activity hole is type of protruding, the section shape of moving part (8) is type of protruding, and is close to moving part (8) one end in the activity ring (7) outside and compares in moving part (8) other end short, the length in activity hole compares in the length of moving part (8) short, one the inside of activity ring (7) is equipped with two moving parts (8), and two moving parts (8) have different magnetism, and be close to each other magnetism between side piece (32) and the moving part (8) is the same.

6. An assembly building element hoist device according to claim 1, characterized in that: the outer side of one movable ring (7) is provided with six racks (71), and the six racks (71) and the two movable pieces (8) are arranged around the movable ring (7) together.

7. An assembly building element hoist device according to claim 1, characterized in that: the rubber part (9) is made of elastic rubber, a telescopic bulge is arranged on the surface of the rubber part (9), the bulge is connected with the internal thread (72), and the bulge and the internal thread form a complete thread shape together.

8. The method for hoisting the fabricated building element according to claim 5, comprising the steps of:

firstly, pulling a coiling piece (2), moving a lifting rope (21) downwards, enabling a lifting appliance (3) to be clamped with a mounting point of a prefabricated part (4), and enabling two moving pieces (8) in one movable ring (7) to move inwards under the action of magnetic force and spring elasticity between the two moving pieces, so that a rubber piece (9) on the surfaces of the moving pieces (8) is in contact with the lifting rope (21) and forms a limiting effect on the lifting rope (21), the two lifting ropes (21) are enabled to be kept vertical all the time, and lifting in place is achieved in a comprehensive mode;

secondly, starting a crane body to suspend and hoist the prefabricated part (4), transferring the prefabricated part to an assembly position from a transportation position, correcting the position of the prefabricated part (4) after the prefabricated part reaches the assembly position, and fixedly supporting the prefabricated part (4);

thirdly, when the lifting appliance (3) is disassembled, firstly, the lifting appliance body is controlled to enable the lifting plate (1) to descend, the coiling piece (2) is controlled to enable the lifting rope (21) to contract, when the top end of the lifting appliance (3) enters the movable ring (7), the lifting plate (1) stops descending, at the moment, a magnetic action is generated between the movable piece (8) and the side block (32), the movable piece (8) rotates and slightly adjusts the angle of the movable ring (7) when the movable piece (8) is not meshed with the toothed plate (61), so that the bottom end opening of the internal thread (72) is aligned with the top end opening of the external thread (31), meanwhile, the movable piece (8) moves outwards along the movable hole until the toothed plate (61) is meshed with the movable piece (8), meanwhile, the surface of the rubber piece (9) generates a bulge, the bulge shape of the bulge is connected with the internal thread (72), and a thread ring in the movable ring (7) is formed together;

the fourth step, when moving part (8) and pinion rack (61) are the meshing state, the sensor received inductive signal and starter motor (6) for pinion rack (61) are rotatory, and it is rotatory to drive movable ring (7), makes internal thread (72) and external screw thread (31) continuous motion, realizes the vertical of hoist (3) and shifts up, and then makes hoist (3) bottom break away from the joint state with the mounting point of prefabricated component (4), realizes the automatic dismantlement to hoist (3) to integrate.