Prefabricated building hoisting device

Abstract

The utility model relates to hoist device related technical field, concretely is a kind of assembly type building hoist device, it includes: bottom plate;The top of the bottom plate is fixedly connected with support, the inside of the support is provided with hoist arm, the hoist arm is rotatably connected with the support, the bottom side of the hoist arm is provided with fixed base, the top of the fixed base is fixedly connected with portal frame.The utility model cooperates under the cooperation of bottom plate, support, hoist arm, fixed base, portal frame, steel cable, motor box and linkage mechanism, so that the device can clamp directly to building component, simplify the hoisting process of building component, improve work efficiency, solve the existing assembly type building hoist device although building component can be hoisted, but it needs worker to use bandage to bind building component after hoisting, and then bandage is hung to the inside of hook to hoist, and the operation process is more complex, and the problem of low work efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of lifting devices, specifically a prefabricated building lifting device. Background Technology

[0002] Buildings assembled on-site from prefabricated components are called prefabricated buildings. Based on the form of prefabricated components and construction methods, they are classified into five types: block buildings, panel buildings, box-type buildings, frame-panel buildings, and lift-slab / lift-floor buildings. When prefabricated buildings need to be moved during assembly, hoisting equipment is typically used for lifting and relocation.

[0003] Utility model patent CN221876412U discloses a lifting device for prefabricated building installation, belonging to the technical field of lifting devices. It addresses the problem in existing technologies where, due to the high installation height of some building components, workers must climb onto the top of the components after hoisting to manually detach the hooks, a dangerous process that can easily lead to worker injury. The device includes a crane body with a boom rotatably mounted on its upper surface. A hoisting rope is wound inside the boom, and a mounting base is fixedly installed at the bottom of the rope. The mounting base contains a clamping assembly. This utility model uses the retraction of a hydraulic telescopic rod to open the first and second hooks, disengaging them from the building component. This device eliminates the need for workers to climb onto high components to retrieve the hooks after hoisting, ensuring worker safety.

[0004] However, the above patent still has shortcomings: although the patent can lift building components, before lifting the building components, workers need to use straps to tie the building components and then hang the straps inside the hook for lifting. The operation process is relatively complicated and the work efficiency is low. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a prefabricated building lifting device to solve the problem mentioned in the background art that although the existing prefabricated building lifting devices can lift building components, they require workers to use straps to tie the building components before hanging the straps inside the hooks for lifting, which is a complicated operation process and has low work efficiency.

[0006] The technical solution of this utility model is:

[0007] A prefabricated building hoisting device includes: a base plate; a support fixedly connected to the top of the base plate, a boom disposed inside the support, the boom being rotatably connected to the support, a fixed seat disposed on one side of the bottom of the boom, a gantry frame fixedly connected to the top of the fixed seat, a steel cable fixedly connected to the top of the gantry frame, a motor box for winding and unwinding the steel cable disposed at the top of the steel cable, the motor box being fixedly connected to the boom; and linkage mechanisms for clamping building components disposed on both sides of the fixed seat.

[0008] Preferably, the linkage mechanism includes: first fixing blocks fixedly connected to both sides of the fixing base; first rotating shafts rotatably connected inside each of the first fixing blocks; first linkage rods fixedly connected to the outer surfaces of both ends of the first rotating shafts; the ends of the two first linkage rods away from the first rotating shafts fixedly connected via second rotating shafts; mounting blocks rotatably connected to the outer surface of the middle portion of the second rotating shafts; clamping plates provided on adjacent sides of the two mounting blocks; third rotating shafts rotatably connected to the side of the first fixing blocks away from the first rotating shafts; second linkage rods fixedly connected to the outer surfaces of both ends of the third rotating shafts; fourth rotating shafts rotatably connected to the side of the mounting blocks away from the second rotating shafts; both ends of the fourth rotating shafts fixedly connected to the second linkage rods; a telescopic mechanism for controlling the clamping plates to clamp the building components provided in the middle portion of each of the two first linkage rods; and a disassembly and assembly mechanism for facilitating the replacement of the clamping plates provided between the clamping plates and the mounting blocks.

[0009] Preferably, the telescopic mechanism includes: the middle portions of the two first linkage rods are fixedly connected by a fifth rotating shaft, and a third linkage rod is rotatably connected to each of the fifth rotating shafts near the first linkage rods; a second fixing block is provided at the end of each third linkage rod away from the fifth rotating shaft; a sixth rotating shaft is rotatably connected inside each of the second fixing blocks; and both ends of the sixth rotating shaft are fixedly connected to the third linkage rods respectively; the two second fixing blocks are fixedly connected by a lifting block; a first hydraulic cylinder is provided at the top of the lifting block; the first hydraulic cylinder is fixedly connected to the gantry frame; and the telescopic end of the first hydraulic cylinder is fixedly connected to the lifting block.

[0010] Preferably, the disassembly and assembly mechanism includes: a limiting block is provided between the clamping plate and the mounting block, the limiting block is fixedly connected to the mounting block, and the clamping plate is provided with a matching mounting groove near the limiting block; two hexagon socket head cap screws are provided on the side of the clamping plate away from the mounting block, one end of each hexagon socket head cap screw passes through the clamping plate and the limiting block and extends into the interior of the mounting block, and the hexagon socket head cap screws are threadedly connected to the mounting block.

[0011] Preferably, each of the two clamping plates has a damping pad on an adjacent side, and the damping pad is fixedly connected to the clamping plate.

[0012] Preferably, a second hydraulic cylinder is provided at the bottom of the boom, and a linkage block is rotatably connected to the telescopic end of the second hydraulic cylinder. The end of the second hydraulic cylinder away from the linkage block is fixedly connected to the bracket.

[0013] Preferably, each of the four corners of the base plate is provided with a mounting plate, and each mounting plate has a mounting hole inside.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Firstly, this utility model, through the coordinated action of the base plate, support, boom, fixed seat, gantry frame, steel cable, motor box, and linkage mechanism, enables the device to directly clamp building components, simplifying the lifting process of building components, improving work efficiency, and solving the problem that although existing prefabricated building lifting devices can lift building components, they require workers to use straps to tie the building components before hanging the straps inside the hooks for lifting, which is a relatively complicated operation process and has low work efficiency.

[0016] Secondly, through the coordinated action of the base plate, bracket, boom, fixed seat, gantry frame, steel cable, motor box and linkage mechanism, this utility model makes it convenient for users to remove the internal grippers of the device for maintenance and replacement, which improves practicality and solves the problem that the existing prefabricated building lifting devices are inconvenient to replace when the hooks deform during the lifting of heavy building components, resulting in poor practicality. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a prefabricated building lifting device according to the present invention;

[0018] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 This is a schematic diagram of the linkage mechanism structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the telescopic mechanism structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure between the clamping plate and the mounting block of this utility model;

[0022] Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point B.

[0023] In the picture:

[0024] 1. Base plate; 2. Bracket; 3. Boom; 4. Fixed seat; 5. Gantry frame; 6. Steel cable; 7. Motor box; 8. Linkage mechanism; 9. First fixed block; 10. First rotating shaft; 11. First linkage rod; 12. Second rotating shaft; 13. Mounting block; 14. Clamping plate; 15. Third rotating shaft; 16. Second linkage rod; 17. Fourth rotating shaft; 18. Telescopic mechanism; 19. Disassembly and assembly mechanism; 20. Fifth rotating shaft; 21. Third linkage rod; 22. Second fixed block; 23. Sixth rotating shaft; 24. Lifting block; 25. First hydraulic cylinder; 26. Limit block; 27. Mounting groove; 28. Hex socket head cap screw; 29. ​​Damping pad; 30. Second hydraulic cylinder; 31. Linkage block; 32. Mounting plate; 33. Mounting hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 6 The present invention will describe the above technical solution in detail through the following embodiments:

[0027] A prefabricated building lifting device includes: a base plate 1; a support 2 is fixedly connected to the top of the base plate 1, a boom 3 is installed inside the support 2, the boom 3 is rotatably connected to the support 2, a fixed seat 4 is installed on one side of the bottom of the boom 3, a gantry frame 5 is fixedly connected to the top of the fixed seat 4, a steel cable 6 is fixedly connected to the top of the gantry frame 5, a motor box 7 for winding and unwinding the steel cable 6 is installed on the top of the steel cable 6, and the motor box 7 is fixedly connected to the boom 3; both sides of the fixed seat 4 are provided with linkage mechanisms 8 for clamping building components, and the motor box is provided with an electric mechanism that has the function of winding and unwinding the steel cable. This function adopts an existing structure and will not be described in detail. The user can clamp the building component through the linkage mechanisms 8 on the fixed seat 4, and then wind and unwind the steel cable through the electric mechanism inside the motor box 7 to achieve the purpose of lifting the building component.

[0028] like Figure 3As shown, the linkage mechanism 8 includes: first fixing blocks 9 are fixedly connected to both sides of the fixing base 4; a first rotating shaft 10 is rotatably connected inside each of the first fixing blocks 9; first linkage rods 11 are fixedly connected to the outer surfaces of both ends of the first rotating shaft 10; the ends of the two first linkage rods 11 away from the first rotating shaft 10 are fixedly connected to the second rotating shaft 12; mounting blocks 13 are rotatably connected to the outer surface of the middle part of the second rotating shaft 12; clamping plates 14 are provided on the adjacent sides of the two mounting blocks 13; the first fixing blocks 9 are located away from the first rotating shaft 10. A third rotating shaft 15 is rotatably connected to one side of a rotating shaft 10. Second linkage rods 16 are fixedly connected to the outer surfaces of both ends of the third rotating shaft 15. A fourth rotating shaft 17 is rotatably connected to the side of the mounting block 13 away from the second rotating shaft 12. Both ends of the fourth rotating shaft 17 are fixedly connected to the second linkage rods 16. A telescopic mechanism 18 for controlling the clamping plate 14 to clamp the building component is provided in the middle of each of the two first linkage rods 11. A detachable joint is provided between the clamping plate 14 and the mounting block 13 to facilitate replacement of the clamping plate 14. The mounting mechanism 19 allows the user to pull the middle of the first linkage rod 11 via the telescopic mechanism 18, causing the first linkage rod 11 to rotate around the first rotating shaft 10. Simultaneously, the first linkage rod 11 rotates, driving the mounting block 13 via the second rotating shaft 12. As the mounting block 13 moves, it pulls one end of the second linkage rod 16 via the fourth rotating shaft 17, causing the second linkage rod 16 to rotate around the third rotating shaft 15. The cooperation of the first linkage rod 11 and the second linkage rod 16 drives the mounting block 13, which in turn drives the clamping plate 14, keeping the two clamping plates 14 perpendicular and close together, thus clamping the building component. This allows the device to directly clamp the building component, simplifying the lifting process and improving work efficiency. It solves the problem that existing prefabricated building lifting devices, while capable of lifting building components, require workers to use straps to bind the components before attaching them to hooks, resulting in a complex operation and low efficiency.

[0029] like Figure 4As shown, the telescopic mechanism 18 includes: two first linkage rods 11 are fixedly connected at their middle portions via fifth rotating shafts 20; each fifth rotating shaft 20 is rotatably connected to a third linkage rod 21 near the first linkage rods 11; each third linkage rod 21 has a second fixing block 22 at its end away from the fifth rotating shaft 20; a sixth rotating shaft 23 is rotatably connected inside each second fixing block 22; both ends of the sixth rotating shaft 23 are fixedly connected to the third linkage rods 21; the two second fixing blocks 22 are fixedly connected to each other via a lifting block 24, and the lifting mechanism... A first hydraulic cylinder 25 is provided on the top of block 24. The first hydraulic cylinder 25 is fixedly connected to the gantry frame 5. The telescopic end of the first hydraulic cylinder 25 is fixedly connected to the lifting block 24. When the first hydraulic cylinder 25 is started, the telescopic end of the first hydraulic cylinder 25 pulls the lifting block 24 upward. While the lifting block 24 moves, it drives the second fixed block 22. The second fixed block 22 drives the sixth rotating shaft 23. The sixth rotating shaft 23 pulls one end of the third linkage rod 21, so that the third linkage rod 21 pulls the first linkage rod 11 through the fifth rotating shaft 20.

[0030] like Figure 5 and Figure 6 As shown, the disassembly and assembly mechanism 19 includes: a limit block 26 is provided between the clamping plate 14 and the mounting block 13, and the limit block 26 is fixedly connected to the mounting block 13. The clamping plate 14 has a matching mounting groove 27 near the limit block 26. Two hexagon socket head cap screws 28 are provided on the side of the clamping plate 14 away from the mounting block 13. One end of each hexagon socket head cap screw 28 passes through the clamping plate 14 and the limit block 26 and extends into the interior of the mounting block 13. The hexagon socket head cap screws 28 are threadedly connected to the mounting block 13. When the user disassembles the clamping plate 14, they can use an Allen wrench to rotate the hexagon socket head cap screws 28. Separate the clamping plate 14 from the mounting block 13, and then remove the clamping plate 14 from the limiting block 26 for maintenance or replacement. During installation, fit the mounting groove 27 on the clamping plate 14 onto the surface of the limiting block 26, and then use an Allen wrench to rotate the Allen bolt 28 so that the Allen bolt 28 is connected to the mounting block 13, thereby fixing the clamping plate 14 onto the limiting block 26. This makes it convenient for users to remove the clamping plate 14 inside the device for maintenance and replacement, improving practicality and solving the problem that it is inconvenient to replace the existing prefabricated building lifting device when the hook deforms during the lifting of heavy building components, resulting in poor practicality.

[0031] like Figure 5 As shown, damping pads 29 are provided on the adjacent sides of the two clamping plates 14. The damping pads 29 are fixedly connected to the clamping plates 14, which increases the friction between the clamping plates 14 and the building components, thereby improving the stability of clamping the building components.

[0032] like Figure 1As shown, a second hydraulic cylinder 30 is provided at the bottom of the boom 3. The extension end of the second hydraulic cylinder 30 is rotatably connected to a linkage block 31. The end of the second hydraulic cylinder 30 away from the linkage block 31 is fixedly connected to the bracket 2. This allows for adjustment of the angle between the boom 3 and the base plate 1, improving practicality.

[0033] like Figure 1 and Figure 2 As shown, mounting plates 32 are provided at all four corners of the base plate 1. Mounting holes 33 are provided inside the mounting plates 32, which makes it convenient for users to install the device on the rotating seat of the crane and improves the stability of the installation.

[0034] Working principle: The first hydraulic cylinder 25 is activated. The telescopic end of the first hydraulic cylinder 25 pulls the lifting block 24 upward. Simultaneously, the lifting block 24 moves, driving the second fixed block 22. The second fixed block 22 drives the sixth rotating shaft 23, which pulls one end of the third linkage rod 21. This causes the third linkage rod 21 to pull the first linkage rod 11 via the fifth rotating shaft 20, causing the first linkage rod 11 to rotate around the first rotating shaft 10. Simultaneously, the first linkage rod 11 rotates, driving the mounting block 13 via the second rotating shaft 12. As the mounting block 13 moves, it pulls one end of the second linkage rod 16 via the fourth rotating shaft 17, causing the second linkage rod 16 to... The third rotating shaft 15 rotates around the center. The cooperation of the first linkage rod 11 and the second linkage rod 16 drives the mounting block 13, which in turn drives the clamping plate 14, keeping the two clamping plates 14 perpendicular and close together, thereby clamping the building component. This allows the device to directly clamp the building component, simplifying the lifting process and improving work efficiency. It solves the problem that although existing prefabricated building lifting devices can lift building components, they require workers to use straps to tie the building component before hanging the straps inside the hook for lifting, which is a complicated operation and has low work efficiency.

[0035] When disassembling the clamping plate 14, the user can use an Allen wrench to rotate the Allen bolt 28 to separate the Allen bolt 28 from the mounting block 13, and then remove the clamping plate 14 from the limiting block 26 for maintenance or replacement. During installation, the mounting groove 27 on the clamping plate 14 is fitted onto the surface of the limiting block 26, and then the Allen bolt 28 is rotated with an Allen wrench to connect the Allen bolt 28 to the mounting block 13, thereby fixing the clamping plate 14 onto the limiting block 26. This makes it convenient for the user to remove the clamping plate 14 inside the device for maintenance and replacement, improving practicality and solving the problem that the existing prefabricated building lifting devices are inconvenient to replace when the hooks deform during the lifting of heavy building components, resulting in poor practicality.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A prefabricated building lifting device, comprising: Base plate (1); The feature is that a bracket (2) is fixedly connected to the top of the base plate (1), a boom (3) is provided inside the bracket (2), the boom (3) is rotatably connected to the bracket (2), a fixed seat (4) is provided on one side of the bottom of the boom (3), a gantry frame (5) is fixedly connected to the top of the fixed seat (4), a steel cable (6) is fixedly connected to the top of the gantry frame (5), a motor box (7) for winding and unwinding the steel cable (6) is provided on the top of the steel cable (6), and the motor box (7) is fixedly connected to the boom (3). Both sides of the fixed base (4) are provided with a linkage mechanism (8) for clamping the building components.

2. The prefabricated building lifting device as described in claim 1, characterized in that: The linkage mechanism (8) includes: The fixed base (4) is fixedly connected to both sides of the first fixed block (9), and the first fixed block (9) is rotatably connected to the inside of the first fixed block (9). The outer surfaces of both ends of the first rotating shaft (10) are fixedly connected to the first linkage rod (11). The ends of the two first linkage rods (11) away from the first rotating shaft (10) are fixedly connected to the second rotating shaft (12). The outer surface of the middle part of the second rotating shaft (12) is rotatably connected to the mounting block (13). The two mounting blocks (13) are provided with clamping plates (14) on adjacent sides. The first fixing block (9) is rotatably connected to a third rotating shaft (15) on the side away from the first rotating shaft (10). The outer surfaces of both ends of the third rotating shaft (15) are fixedly connected to a second linkage rod (16). The mounting block (13) is rotatably connected to a fourth rotating shaft (17) on the side away from the second rotating shaft (12). Both ends of the fourth rotating shaft (17) are fixedly connected to the second linkage rod (16). The middle of each of the two first linkage rods (11) is provided with a telescopic mechanism (18) for clamping the building components by controlling the clamping plate (14); A disassembly and assembly mechanism (19) is provided between the clamping plate (14) and the mounting block (13) to facilitate the replacement of the clamping plate (14).

3. The prefabricated building lifting device as described in claim 2, characterized in that: The telescopic mechanism (18) includes: The middle parts of the two first linkage rods (11) are fixedly connected by a fifth pivot (20). The fifth pivot (20) is rotatably connected to a third linkage rod (21) near the first linkage rod (11). The third linkage rod (21) is provided with a second fixing block (22) at the end away from the fifth pivot (20). The interior of the second fixing block (22) is rotatably connected to a sixth pivot (23). The two ends of the sixth pivot (23) are fixedly connected to the third linkage rod (21). The two second fixed blocks (22) are fixedly connected by a lifting block (24). A first hydraulic cylinder (25) is provided on the top of the lifting block (24). The first hydraulic cylinder (25) is fixedly connected to the gantry frame (5). The telescopic end of the first hydraulic cylinder (25) is fixedly connected to the lifting block (24).

4. The prefabricated building lifting device as described in claim 2, characterized in that: The disassembly / assembly mechanism (19) includes: Limiting blocks (26) are provided between the clamping plate (14) and the mounting block (13). The limiting blocks (26) are fixedly connected to the mounting block (13). The clamping plate (14) is provided with a matching mounting groove (27) near the limiting block (26). Two socket head cap screws (28) are provided on the side of the clamping plate (14) away from the mounting block (13). One end of each socket head cap screw (28) passes through the clamping plate (14) and the limiting block (26) and extends into the interior of the mounting block (13). The socket head cap screws (28) are threadedly connected to the mounting block (13).

5. A prefabricated building lifting device as described in claim 2, characterized in that: Each of the two clamping plates (14) has a damping pad (29) on an adjacent side, and the damping pad (29) is fixedly connected to the clamping plate (14) respectively.

6. The prefabricated building lifting device as described in claim 1, characterized in that: The bottom of the boom (3) is provided with a second hydraulic cylinder (30), and the extension end of the second hydraulic cylinder (30) is rotatably connected to a linkage block (31). The end of the second hydraulic cylinder (30) away from the linkage block (31) is fixedly connected to the bracket (2).

7. The prefabricated building lifting device as described in claim 1, characterized in that: Mounting plates (32) are provided at all four corners of the base plate (1), and mounting holes (33) are provided inside the mounting plates (32).

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