A convenient hoisting device for prefabricated building wall panels

Abstract

The present invention relates to the field of building hoisting equipment, and in particular to a convenient assembled building wall panel hoisting device; the device comprises a wall panel and a hoisting assembly, wherein the hoisting assembly comprises a hoist located at the top and a plurality of flat rectangular pads, wherein the width of the pads is equal to the thickness of the wall panel, each wall panel corresponds to a group of pads, each group of pads comprises three pads, the thickness of the pads is greater than the length of the steel bars on the bottom surface of the wall panel, a lifting ring is fixedly installed above the hoist through several pull ropes, the lifting ring is located above the top surface of the hoist, the length of the hoist is less than the length of the wall panel, a first fixing structure for fixing the upper part of the wall panel is installed on the bottom surface of the hoist, and three groups of lifting ropes distributed along the length direction are fixedly installed on the bottom surface of the hoist, and each group of lifting ropes comprises two lifting ropes symmetrically distributed front and back; the present invention can level the wall panel by adjusting the screw rod, and the operation is simpler and more convenient, and the wall panel does not need to reserve grouting holes, so the integrity of the wall panel is maintained.

Description

Technical Field

[0001] The present invention relates to the field of construction hoisting equipment, and particularly to a convenient hoisting device for prefabricated building wall panels. Background Art

[0002] A prefabricated building refers to a building assembled on-site through reliable connection methods after transporting prefabricated precast concrete structures, steel structures, modern wood structures, etc. to the construction site. Due to the advantages of fast and efficient installation of prefabricated buildings, they are highly favored. However, in the prior art, for the hoisting of building wall panels, multiple steps are required, such as positioning, placing leveling gaskets, sealing sheets, then hoisting, extracting the gaskets for leveling, installing support frames, grouting and pouring, etc. Moreover, the entire hoisting process has many and complicated procedures, and grouting holes need to be reserved in the wall panels. At the same time, during the hoisting process of the wall panels, ropes are mostly used for movement, and the ropes are prone to causing the wall panels to shake during hoisting, which is likely to cause wear at the corners of the wall panels. Summary of the Invention

[0003] To solve the problems existing in the prior art, the present invention provides a convenient hoisting device for prefabricated building wall panels.

[0004] The technical solution of the present invention is as follows:

[0005] The present invention provides a convenient hoisting device for prefabricated building wall panels, including a wall panel and a hoisting assembly. The hoisting assembly includes a lifting appliance located above and several groups of flat cuboid-shaped pads. The width of the pads is equal to the thickness of the wall panel. Each wall panel corresponds to a group of pads. Each group of pads includes three pads. The thickness of the pads is greater than the length of the bottom steel bars of the wall panel. Above the lifting appliance, a sling is fixedly installed through several ropes. The sling is located above the top surface of the lifting appliance. The length of the lifting appliance is less than the length of the wall panel. On the bottom surface of the lifting appliance, a first fixing structure for fixing the upper part of the wall panel is installed. On the bottom surface of the lifting appliance, three groups of lifting ropes distributed along its length direction are fixedly installed. Each group of lifting ropes includes two lifting ropes symmetrically distributed front and back. On the front and back sides of the pads, first screw holes are opened, and threaded rods in threaded cooperation with them are provided in the first screw holes. The outer ends of the threaded rods are all located outside the corresponding pads. The lower ends of the lifting ropes are all provided with hook fixing assemblies for hook connection with the threaded rods on the corresponding sides of the pads below. During use, each group of pads is respectively placed at both ends and the middle position of the bottom surface of the wall panel, and the outer sides of the pads are flush with the corresponding sides of the wall panel. Each group of lifting ropes is fixedly hooked to the threaded rods on the corresponding sides of the pads below through the hook fixing structures at their lower ends, and then the upper part of the wall panel is fixed through the first fixing structure.

[0006] Furthermore, the hook fixing assembly includes connecting rods fixedly installed at the lower ends of the suspension ropes. Convex upward arc-shaped bumps are fixedly installed at the lower ends of the connecting rods. An upper semi-ring with a downward concave surface and a lower semi-ring with an upward concave surface are arranged below the bumps from top to bottom. The upper semi-ring and the lower semi-ring can be combined into a complete circular ring. Threads are provided on the inner sides of both the upper semi-ring and the lower semi-ring. Connecting ropes are provided on the outer perimeters of the lower semi-rings. The middle parts of the connecting ropes are fixedly connected to the outer perimeters of the lower semi-rings. Rope passing rings are fixedly installed on both sides of the upper parts of the upper semi-rings. The two ends of the connecting ropes respectively bypass the corresponding sides of the upper semi-rings, pass through the rope passing rings on the corresponding sides, then bypass the corresponding sides of the bumps and are fixedly connected to the corresponding sides of the connecting rods. The threads on the inner sides of the upper semi-ring and the lower semi-ring can be meshed and matched with the threads on the outer perimeter of the screw rod.

[0007] Furthermore, the first fixing structure includes several vertically extendable and lockable rods installed on the bottom surface of the sling. Fixed blocks are fixedly installed at the lower ends of the vertically extendable and lockable rods. Vertical blind holes are opened on the bottom surfaces of the fixed blocks. The blind holes can be sleeved on the reinforcing bars on the top surface of the wall panel or the upper ends of the connecting parts.

[0008] Furthermore, rectangular cavities are provided inside the cushion blocks. The first screw holes communicate with the cavities. The inner ends of the screw rods extend into the cavities. A plurality of groups of vertical jack holes are opened on the top surfaces of the cushion blocks. Each group of jack holes includes two jack holes symmetrically distributed front and back. Two push blocks symmetrically distributed front and back are provided inside the cavities. One side of each push block away from the middle of the cavity is in contact and cooperation with the inner end of the corresponding screw rod on the corresponding side. The left and right sides of the push blocks are respectively in contact and cooperation with the corresponding inner walls of the cavities. The top surface of the push block is an inclined surface, and the side of the top surface of the push block close to the screw rod is higher than the side close to the middle of the cavity. First through holes are opened inside the screw rods. The screw rods are internally provided with first through holes coaxial with them. The first through holes include internal threaded holes close to the cavity and regular hexagonal holes located on the outside. Slurry outlet holes communicating with the inside of the cavities are opened in the middle of the left and right sides of the cushion blocks. Moving limit structures are provided between the push blocks and the cavities to enable the push blocks to only move from the screw rod to the middle side of the cavity. During use, the lower ends of the reinforcing bars on the bottom surface of the wall panel are inserted into the jack holes of the cushion blocks below it and are in contact and cooperation with the top surfaces of the push blocks. At the same time, several groups of templates that can be used in cooperation with each group of cushion blocks are also provided. Each group of templates includes two templates with the same length as the wall panel. Third through holes corresponding to the screw rods during use are provided on the front sides of the templates. Nuts used in cooperation with the screw rods are also provided. During use, the screw rods on the front and back sides of the cushion blocks below the wall panel penetrate through the third through holes on the corresponding sides, and the templates are fixed by screwing the nuts with the screw rods.

[0009] Furthermore, the moving limit structure includes two first grooves distributed along its length direction opened at the bottom of the push block. Ratchet teeth are hingedly installed in the first grooves. Torsion springs are installed at the hinge points of the ratchet teeth. Horizontally arranged tooth grooves corresponding to the push blocks are opened at the bottom of the cavity. The lower ends of the ratchet teeth are inserted into the corresponding tooth grooves, and when the screw rod pushes the corresponding push block to move, the ratchet teeth move with the push block to the middle side of the cavity.

[0010] The beneficial effects achieved by the present invention are as follows:

[0011] The present invention has a unique design and novel concept. Each wall panel is used in cooperation with a group of cushion blocks. Each group of cushion blocks can not only provide bottom support for the corresponding wall panel during transportation, making the transportation of the wall panel more convenient, but also can be used in cooperation with the lifting ropes of the lifting tool, thus facilitating the hoisting of the wall panel. At the same time, each lifting rope adopts a unique upper half-ring and lower half-ring structure, which can not only hook the screw through the lower half-ring, but also engage the threads on the inner sides of the upper half-ring and the lower half-ring with the threads on the outer periphery of the screw. At the same time, with the cooperation of the protrusions, the upper half-ring and the lower half-ring fix the screw during the splicing process, and the thread engagement can effectively prevent the wall panel from shaking along the axial direction of the screw during hoisting. At the same time, the telescopic and lockable vertical rod under the lifting tool can fix the upper part of the wall panel, thus effectively improving the stability of the wall panel during hoisting. And the present invention can level the wall panel by adjusting the screw, without pre-placing leveling gaskets, sealing sheets, etc. at the wall panel installation position, and the operation is simpler and more convenient. At the same time, the wall panel does not need to reserve grouting holes during production, maintaining the integrity of the wall panel. Grouting can be carried out through the slurry outlet of the screw and the cushion block to connect the bottom of the wall panel with the installation position, making the installation simpler and more convenient. Description of the Drawings

[0012] Figure 1 is the overall structure schematic diagram of the present invention.

[0013] Figure 2 is Figure 1 the enlarged view of the view in the A direction in

[0014] Figure 3 is Figure 1 the enlarged view of the partial area Ⅰ in

[0015] Figure 4 is Figure 2 the enlarged view of the partial area Ⅱ in

[0016] Figure 5 is Figure 2 the enlarged view of the partial area Ⅲ in

[0017] Figure 6 is Figure 5 the enlarged view of the partial area Ⅳ in

[0018] Figure 7 is the usage state diagram of the present invention.

[0019] Figure 8 is Figure 7 the enlarged view of the view in the B direction in

[0020] Figure 9 is the mortar movement state diagram. Detailed implementation manners

[0021] To facilitate the understanding of those skilled in the art of the present invention, the following describes the specific implementation manners of the present invention with reference to the accompanying drawings.

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] It should be noted that when a component is referred to as being "mounted on" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there may be an intermediate component at the same time.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0026] As Figures 1 to 9 shown, the present invention provides a convenient hoisting device for prefabricated building wall panels, including a wall panel 1 and a hoisting assembly. A vertical steel bar connector is provided in the middle of the top surface of the wall panel 1, and a plurality of groups of vertical steel bars 3 are provided on the bottom surface of the wall panel 1 and distributed along its length direction. Each group of steel bars 3 includes two steel bars 3 symmetrically distributed front and back. The wall panel 1 belongs to the prior art and will not be described in detail.

[0027] The hoisting assembly includes a sling 5 and an array of pads 14. The width of the sling 5 is smaller than the width of the wall panel 1. A lifting ring 4 is provided above the sling 5. The lifting ring 4 is connected to the top surface of the sling 5 through several pull ropes 11. Figure 1 As shown in , when the wall panel 1 is hoisted by a crane or the like, the hook of the crane and the hoist ring 4 can be hooked and matched.

[0028] The bottom of the sling 5 is provided with three groups of slings 6 evenly distributed along its length direction, each group of slings 6 includes two slings 6 symmetrically distributed front and back along the bottom surface of the sling 5, and the lower end of each sling 6 is fixedly installed with a connecting rod 7, and the lower end of the connecting rod 7 is fixedly installed with an arc-shaped protrusion 8, the convex surface of the protrusion 8 faces upward, and a semicircular upper semi-ring 9 with a concave surface facing upward and a semicircular lower semi-ring 10 are provided below the protrusion 8 in sequence, the outer diameters of the upper semi-ring 9 and the lower semi-ring 10 are equal and can be assembled into a complete ring, and the concave sides of the upper semi-ring 9 and the lower semi-ring 10 are A thread is provided, and a connecting rope 13 is provided on the outer periphery of the lower half ring 10. The maximum transverse width of the protrusion 8 is larger than the outer diameter of the lower half ring 10. The middle part of the connecting rope 13 is fixedly connected to the outer periphery of the lower half ring 10. Two rope threading rings 12 symmetrically distributed on the upper periphery of the upper half ring 9 are fixedly installed. The two ends of the connecting rope 13 pass through the outer periphery of the lower half ring 10 and pass through the rope threading rings 12 on the corresponding side in turn, pass through the outer periphery of the corresponding side of the protrusion 8 and are fixedly connected to the corresponding side of the connecting rod 7. The distance between the two rope threading rings 12 is smaller than the outer diameter of the upper half ring 9. Figure 3 As shown in the figure, the two ends of the connecting rope 13 are connected to the connecting rod 7, and the middle part of the connecting rope 13 is fixedly connected to the outer periphery of the lower half ring 10. At the same time, the upper half ring 9 located between the protrusion 8 and the lower half ring 10 can be moved, that is, the upper half ring 9 can be adjusted under the active cooperation between the rope threading ring 12 and the connecting rope 13, so that the distance between the upper half ring 9 and the lower half ring 10 changes.

[0029] The bottom surface of the sling 2 is provided with a plurality of telescopic locking vertical rods 17 distributed along its length, and the lower ends of the vertical rods 17 are fixedly installed with fixing blocks 18, and the bottom surfaces of the fixing blocks 18 are provided with vertical blind holes 19, such as Figure 4 As shown in the figure, when the wall panel 1 is hoisted, the fixing blocks 18 are respectively mounted on the outer periphery of the upper part of the steel bars or the connecting parts on the top surface of the wall panel 1, that is, the upper part of the steel bars or the connecting parts on the top surface of the wall panel 1 is inserted into the blind hole 19, and the upper part of the wall panel 1 is fixed by the vertical rods 17 and the fixing blocks 18 to prevent the wall panel 1 from shaking.

[0030] Each group of spacers 14 includes three spacers 14. The thickness of the spacer 14 is greater than the length of the steel bars 3 on the bottom surface of the wall panel 1. The width of the spacer 14 is the same as the thickness of the wall panel 1. The spacer 14 is a flat cuboid structure. First screw holes 15 perpendicular to it are opened on both the front and rear sides of the spacer 14. Screw rods 16 threadedly connected thereto are provided in the first screw holes 15. The outer ends of the screw rods 16 penetrate through the corresponding first screw holes 15 and are located outside the spacer 14. Threads are provided on the outer periphery of the screw rods 16. The inner sides of the upper half rings 9 and the lower half rings 10 corresponding to each group of lifting ropes 6 can be threadedly engaged with the outer periphery of the corresponding screw rods 16. When transporting the wall panel 1, each wall panel 1 corresponds to a group of spacers 14. The groups of spacers 14 are respectively placed at both ends and in the middle of the bottom surface of the wall panel 1, and the front and rear sides of the spacers 14 are flush with the corresponding sides of the wall panel 1 respectively. At the same time, in order for the outer sides of the spacers 14 at both ends of the bottom surface of the wall panel 1 to be flush with both sides of the wall panel 1, as Figure 5 shown in. In this way, the wall panel 1 is supported during the transportation of the wall panel 1; when the wall panel 1 needs to be hoisted, through the hook connection between the hook of the crane and the lifting ring 4, and at this time the lifting ropes 6 are not straightened. At the same time, the three groups of lifting ropes 6 below the lifting tool 2 are corresponding to the spacers 14 at the bottom of the wall panel 1 one by one. At the same time, the lower half rings 10 of each group of lifting ropes 6 are respectively hooked on the outer peripheries of the two screw rods 16 of the corresponding spacers 14. Since threads are provided on the outer periphery of the screw 16 and the inner side of the lower half ring 10, the inner side thread of the lower half ring 10 is meshed with the outer periphery thread of the corresponding screw rod 16. At the same time, the upper half ring 9 is covered above the corresponding screw rod 16. Then, by pulling the lifting ring 4 with the hook, the lifting ropes 6 are in a straightened state. Due to the straightening of the lifting ropes 6, and since the maximum lateral width of the protrusion 8 is greater than the outer diameter of the lower half ring 10, and the distance between the two rope-passing rings 12 is less than the outer diameter of the lower half ring 9, the straightening of the lifting ropes 6 causes the protrusion 8 to pull the connecting rope 13 upward and outward at the same time, so that the connecting rope 13 pushes the lower half ring 9 downward to press on the screw rod 16, so that the upper half ring 9 and the lower half ring 10 fix the screw rod 16 at the same time, and the inner side threads of the upper half ring 9 and the lower half ring 10 are meshed with the outer periphery of the corresponding screw rod 16, so as to fix the spacer 14 and the wall panel 1 to prevent shaking. Then, by adjusting the vertical rod 18, the blind holes 19 are sleeved on the outer periphery of the lower steel bars or connectors, and the vertical rod 18 is locked, so that the wall panel 1 can be hoisted by the crane. And at the position where the wall panel 1 is placed, only the position frames of the spacers 14 need to be drawn, and during the hoisting process, the spacers 14 are respectively placed in the corresponding position frames, so that the positioning is simpler. During the installation of the wall panel 1, then the spacers 14 and the wall panel 1 can be installed together.

[0031] Each spacer block 14 is internally provided with a cavity 20 having a rectangular cross-section. The first screw holes 15 are all communicated with the interior of the cavity 20. The inner ends of the screw rods 16 all extend into the corresponding cavities 20. A plurality of vertical insertion holes 21 are formed in the top surface of each spacer block 14. Each group of insertion holes 21 includes two insertion holes 21 that are symmetrically distributed front and back. During use, the steel bars 3 at the bottom of the wall panel 1 can pass through the insertion holes 21 of the spacer blocks 14 below it and extend into the cavity 20. Two push blocks 22 that are symmetrically distributed front and back are provided in each cavity 20. The left and right sides of the push block 22 are respectively in contact and cooperation with the corresponding side walls of the cavity 20. The top of the push block 22 is an inclined surface. The lower ends of the steel bars 3 are all located on the inclined surfaces of the corresponding push blocks 22. The side of the push block 22 close to the screw rod 16 is higher than the side close to the middle of the cavity 20. The bottom surface of the push block 22 is in contact with the bottom surface of the cavity 20. A moving guiding structure is provided between the push block 22 and the cavity 20 to make it move only from the side of the screw rod to the middle side of the cavity 20.

[0032] One implementation of the moving guiding structure is that two first grooves 23 are formed at the bottom of the push block 22. Ratchet teeth 24 are hingedly installed in the first grooves 23. Torsion springs are installed at the hinge points of the ratchet teeth 24. Horizontal tooth grooves 25 corresponding to the push blocks 22 are formed at the bottom of the cavity 20. The tooth grooves 25 are distributed along the length direction of the corresponding push blocks 22. The ratchet teeth 24 at the lower part of the push block 22 are all inserted into the tooth grooves 25 below it. The inner ends of the screw rods 16 are all in contact and cooperation with the corresponding push blocks 22. By rotating the screw rods 16, the screw rods 16 are made to move towards the interior of the cavity 20 along the corresponding first screw holes 15, and then the corresponding push blocks 22 can be pushed towards the middle of the cavity 20 by the screw rods 16. And the engagement and cooperation between the ratchet teeth 24 and the tooth grooves 25 make the push block 22 move only towards the middle side of the cavity 20.

[0033] Slurry outlets 26 communicated with the interior of the cavity 20 are formed in the middle of the left and right sides of the spacer block 14. The screw rod 16 is internally provided with a first through hole coaxial with it. The first through hole includes an internal threaded hole 27 close to the cavity 20 and a regular hexagonal hole 28 located on the outside. The top surface of the push block 22 is located below the outer top surface of the internal threaded hole 27 on the corresponding side, that is, the push block 22 cannot block the internal threaded hole 27 on the corresponding side. As Figure 5 shown in the figure, during the installation process of the wall panel 1, if it is necessary to adjust the wall panel 1 to make it horizontal, the installer jacks up the wall panel 1 with a crowbar, and then inserts an adjusting rod with a regular hexagonal cross-section at the end into the regular hexagonal hole 28, and rotates the screw rod 16 to make the screw rod 16 push the corresponding push block 22 towards the interior of the cavity 20, so as to push the corresponding steel bar 3 upwards through the inclined surface of the push block 22, thereby finely adjusting the wall panel 1.

[0034] It also includes a template 29 that can be used in conjunction with each group of cushion blocks 14. Each group of templates 29 includes two templates 29 that are the same length as the wall panel 1. The height of the template 29 is higher than the thickness of the cushion block 14. Third through holes 30 corresponding one by one to the three front-side screws 16 during the use of the cushion block 14 are provided on the front sides of the templates 29. At the same time, nuts 31 that cooperate with the screws 16 are provided, and a connector 32 that can be hermetically butted and communicated with the screw 16 is also provided. The outer end of the connector 32 is fixedly connected to the delivery pipe 33 of the mortar supply device. After the wall panel 1 is horizontally adjusted, it is necessary to grout and pour the connection between the bottom of the wall panel 1 and the installation position. At this time, the templates 29 are first installed on both the front and back sides of the wall panel 1. When installing the templates 29, the screws 16 are all passed through the corresponding third through holes 30 on the corresponding sides, and then the nuts 31 are sleeved on the outer ends of all the screws 16 passing through the third through holes 30, and the templates 29 are fixed by the nuts 31. Then, the outer end of the connector 32 is hermetically butted with the outer end of a screw 16 located in the middle of the wall panel 1, as shown in Figure 8 as shown. Then, mortar is pumped into the screw 16 through the mortar supply device. The pumping of the mortar is as shown in Figure 9 as shown. In this way, the mortar flows to both sides through the slurry outlets 26 on both sides of the cushion block 14 in the middle of the wall panel 1. At the same time, under the shielding of the template 29, the bottom of the wall panel 1 is filled with mortar until the mortar flows into the cushion blocks 14 at both ends of the bottom of the wall panel 1 from the middle of the wall panel 1, and the mortar flows out from the slurry outlets 26 of the cushion blocks 14 at both ends of the bottom of the wall panel 1 that are far from the middle of the wall panel 1. In this way, the bottom of the wall panel 1 is filled with mortar. After the mortar structure is formed, the template 29 is removed, and the part of the screw 16 protruding from the cushion block 14 is cut off.

[0035] The above-described embodiments of the present invention do not constitute a limitation to the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A convenient assembled building wall panel hoisting device, characterized in that: It includes a wall panel and a hoisting assembly. The hoisting assembly includes a spreader located above and several groups of flat cuboid-shaped pads. The width of the pads is equal to the thickness of the wall panel. Each wall panel corresponds to a group of pads. Each group of pads includes three pads. The thickness of the pads is greater than the length of the bottom steel bars of the wall panel. Above the spreader, several pulling ropes are fixedly installed with a lifting ring. The lifting ring is located above the top surface of the spreader. The length of the spreader is less than the length of the wall panel. On the bottom surface of the spreader, a first fixing structure for fixing the upper part of the wall panel is installed. On the bottom surface of the spreader, three groups of lifting ropes are fixedly installed and distributed along its length direction. Each group of lifting ropes includes two lifting ropes symmetrically distributed front and back. On the front and back sides of the pads, first screw holes are opened. In the first screw holes, screws are provided and threadedly engaged therewith. The outer ends of the screws are all located outside the corresponding pads. The lower ends of the lifting ropes are all provided with a hook fixing assembly for hook connection with the screws. During use, each group of pads is respectively placed at both ends and the middle position of the bottom surface of the wall panel, and the outer sides of the pads are flush with the corresponding sides of the wall panel. Each group of lifting ropes is fixedly hooked to the screws on the corresponding sides of the pads below through the hook fixing assembly at its lower end, and then the upper part of the wall panel is fixed through the first fixing structure; The hook fixing assembly includes a connecting rod. The lower ends of the lifting ropes are all fixedly installed with connecting rods. The lower ends of the connecting rods are all fixedly installed with convex upward arc-shaped protrusions. Below the protrusions, a concave downward upper half ring and a concave upward lower half ring are provided from top to bottom. The upper half ring and the lower half ring can be combined into a complete ring. Threads are provided on the inner sides of the upper half ring and the lower half ring. Connecting ropes are provided on the outer peripheries of the lower half rings. The middle parts of the connecting ropes are fixedly connected to the outer peripheries of the lower half rings. On both sides of the upper part of the upper half ring, threading rings are fixedly installed. The two ends of the connecting ropes respectively bypass the corresponding sides of the upper half ring and pass through the threading rings on the corresponding sides, and then bypass the corresponding sides of the protrusions and are fixedly connected to the corresponding sides of the connecting rods. The threads on the inner sides of the upper half ring and the lower half ring can be meshed and matched with the threads on the outer periphery of the screw.

2. A convenient assembled building wall panel hoisting device according to claim 1, characterized in that: The first fixing structure includes several vertically telescopic and lockable vertical rods installed on the bottom surface of the spreader. Fixed blocks are fixedly installed at the lower ends of the vertical rods. Vertical blind holes are opened on the bottom surfaces of the fixed blocks. The blind holes can all be sleeved on the upper ends of the steel bars or connectors on the top surface of the wall panel.

3. A convenient assembled building wall panel hoisting device according to claim 1 or 2, characterized in that: Each of the said cushion blocks is internally provided with a cavity having a rectangular cross-section. The first screw holes communicate with the cavity, and the inner ends of the screws extend into the cavity. The top surfaces of the cushion blocks are each provided with an array of vertical insertion holes. Each group of insertion holes includes two insertion holes symmetrically distributed front and back. Two push blocks symmetrically distributed front and back are provided in each cavity. One side of each push block away from the middle of the cavity is in contact and cooperation with the inner end of the corresponding screw on that side. The left and right sides of each push block are respectively in contact and cooperation with the corresponding inner walls of the cavity. The top surface of the push block is an inclined surface, and the side of the top surface of the push block close to the screw is higher than the side close to the middle of the cavity. A first through hole is provided inside each screw. A first through hole coaxial with it is provided inside the screw. The first through hole includes an internal thread hole close to the cavity and a regular hexagon hole on the outside. Slurry outlets communicating with the inside of the cavity are provided in the middle of the left and right sides of each cushion block. A moving limit structure is provided between each push block and the cavity to make the push block can only move from the screw to the middle side of the cavity. During use, the lower ends of the steel bars at the bottom of the wall panel are inserted into the insertion holes of the cushion blocks below it and are in contact and cooperation with the top surfaces of the push blocks. At the same time, an array of templates that can be used in cooperation with each group of cushion blocks is also provided. Each group of templates includes two templates having the same length as the wall panel. A third through hole corresponding to the screw during the use of each group of cushion blocks is provided on the front side of each template. A nut used in cooperation with the screw is also provided. During use, the screws on the front and back sides of the cushion blocks below the wall panel penetrate through the corresponding third through holes on the corresponding sides, and the templates are fixed by screwing the nuts with the screws.

4. The convenient prefabricated building wall panel hoisting device according to claim 3, characterized in that: The said moving limit structure includes two first grooves distributed along its length direction provided at the bottom of the push block. Ratchet teeth are hingedly installed in the first grooves. Torsion springs are installed at the hinge joints of the ratchet teeth. Horizontal tooth grooves corresponding to the push blocks are provided at the bottom of the cavity. The lower ends of the ratchet teeth are inserted into the corresponding tooth grooves, and when the screw pushes the corresponding push block to move, the ratchet teeth move with the push block to the middle side of the cavity.

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