Adjustable laminated slab hoisting device

Abstract

The invention provides an adjustable laminated slab hoisting device. The adjustable laminated slab hoisting device comprises a hoisting bracket, a transverse frame, a horizontal driving assembly and a hoisting sling, the hoisting support comprises a bottom frame and a lifting assembly arranged on the bottom frame. The transverse frame is horizontally arranged at the top of the lifting assembly, the horizontal driving assembly is arranged at the top of the transverse frame, the hoisting tool is connected with the output end of the horizontal driving assembly through the connecting assembly, and the connecting assembly is slidably connected with the transverse frame; the hoisting tool comprises a mounting box and four driving boxes arranged on the mounting box, and a sling is hung on each driving box; a driving device is arranged in each driving box, and the driving devices are used for controlling winding and unwinding of the corresponding slings; two connecting rods are arranged among the four slings in a staggered mode, and the two ends of each connecting rod are hinged to the corresponding slings respectively; and a horizontal detector is arranged at the top of each connecting rod, so that the problem that in the prior art, when a laminated slab is hoisted, the laminated slab is inconvenient to level is solved.

Description

Technical Field

[0001] This invention relates to the field of construction equipment, and more particularly to an adjustable composite slab hoisting device. Background Technology

[0002] In prefabricated buildings, composite slabs serve as crucial horizontal load-bearing components, and their installation quality directly impacts the overall structural safety and functionality of the building. Traditionally, composite slab hoisting typically employs tower cranes with simple lifting equipment, manually operated by experienced hoisting workers. However, this traditional hoisting method presents numerous problems during actual construction:

[0003] The levelness control of composite slabs during hoisting relies entirely on the experience and visual judgment of the operators. Due to the lack of precise measurement methods and real-time feedback, repeated adjustments are often required, resulting in low efficiency, seriously affecting the construction progress, and the limited accuracy of manual leveling makes it difficult to meet the installation requirements of high-quality projects. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an adjustable composite slab hoisting device, which solves the problem that it is inconvenient to level the composite slab when hoisting it.

[0005] According to an embodiment of the present invention, an adjustable composite slab hoisting device includes: a hoisting bracket, a crossbeam, a horizontal drive assembly, and a hoisting device; the hoisting bracket includes a base frame and a lifting assembly mounted on the base frame, the lifting assembly being vertically adjustable; the crossbeam is horizontally mounted on top of the lifting assembly, the horizontal drive assembly is mounted on top of the crossbeam, and the hoisting device is connected to the output end of the horizontal drive assembly via a connecting assembly, the connecting assembly being slidably connected to the crossbeam; the hoisting device includes a mounting box and four drive boxes mounted on the mounting box, each drive box having a sling suspended from it, and each sling having a hook at its bottom end; each drive box has a drive device for controlling the raising and lowering of the corresponding sling; two connecting rods are staggered between the four slings, and the two connecting rods are located on different horizontal planes, with both ends of each connecting rod hinged to the corresponding sling; a level detector is mounted on the top of each connecting rod for monitoring the horizontal state of the composite slab during hoisting.

[0006] Compared to existing technologies, this invention offers the following advantages: The addition of a lifting assembly with height adjustment allows for flexible adjustment of the overall lifting height based on on-site construction needs, adapting to different floor heights. A horizontal drive assembly enables precise horizontal movement of the lifting equipment, facilitating accurate hoisting of the composite slab to the target installation position and reducing the difficulty of manual traction and positioning. Four independently driven slings allow for independent length adjustment of the four suspension points of the composite slab, facilitating horizontal adjustment. Two connecting rods at different horizontal planes are interleaved between the four slings, with both ends hinged to the corresponding slings. Each connecting rod, with a level sensor at its top, can monitor the horizontal state (tilt angle and direction) of the composite slab in real-time during hoisting, providing accurate feedback to operators. This facilitates the operation of different drive devices to extend and retract the corresponding slings, thereby adjusting the horizontal posture of the composite slab. Compared to manual judgment, this significantly improves the convenience of adjusting the horizontal state of the composite slab during hoisting.

[0007] Furthermore, each of the aforementioned drive devices includes a servo motor, a reducer, and a drum, wherein the output shaft of the servo motor is connected to the drum via the reducer, and the sling is wound around the drum.

[0008] Furthermore, the lifting assembly includes a lifting hydraulic cylinder, the output end of which is provided with a connecting seat, which is detachably connected to the crossbeam by bolts.

[0009] Furthermore, the leveling instrument is a dual-axis tilt sensor or a laser level.

[0010] Furthermore, each of the connecting rods is a telescopic structure, including a fixed rod and a sliding rod, with the fixed rod and the sliding rod slidably connected, and the leveling instrument is located on the top of the fixed rod.

[0011] Furthermore, the connecting assembly includes: a connecting column, a mounting base, and a connecting rod. The connecting column passes vertically through the crossbeam and is slidably connected to the crossbeam in the horizontal direction. The bottom end of the connecting column is connected to the mounting box by bolts. The mounting base is fixed to the top of the connecting column. The connecting rod is horizontally fixed to the top of the mounting base by a fixing seat. The end of the connecting rod is connected to the output end of the horizontal drive assembly.

[0012] Furthermore, several sliders are provided between the bottom of the mounting base and the crossbeam, and each slider is slidably connected to the top of the crossbeam.

[0013] Furthermore, at least two hanging rings are evenly arranged on the top of the mounting box with its axis as the center, and each hanging ring is fixed with an auxiliary connecting cable to the connecting column.

[0014] Furthermore, the horizontal drive assembly includes a horizontal hydraulic cylinder, which is horizontally mounted on top of the crossbeam via a mounting bracket, and the output end of the horizontal hydraulic cylinder is connected to the end of the connecting rod. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention.

[0016] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0017] Figure 3 This is a structural diagram of the lifting equipment.

[0018] Figure 4 This is a schematic diagram of the connecting rod.

[0019] Figure 5 This is a schematic diagram of the drive device.

[0020] In the above attached diagram: 1. Base frame; 2. Cross frame; 3. Mounting box; 4. Drive box; 5. Lifting sling; 6. Hook; 7. Connecting rod; 8. Leveling instrument; 9. Servo motor; 10. Reducer; 11. Drum; 12. Lifting hydraulic cylinder; 13. Connecting seat; 14. Fixed rod; 15. Sliding rod; 16. Connecting column; 17. Mounting seat; 18. Slider; 19. Connecting rod; 20. Fixed seat; 21. Hanging ring; 22. Auxiliary connecting cable; 23. Horizontal hydraulic cylinder; 24. Mounting frame. Detailed Implementation

[0021] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] like Figures 1 to 5 As shown in the figure, an adjustable composite slab hoisting device is proposed in this embodiment of the invention, which mainly includes: a hoisting bracket, a crossbeam 2, a horizontal drive assembly, and a hoisting tool.

[0023] The hoisting support includes a base frame 1 and a lifting assembly mounted on the base frame 1. The lifting assembly is vertically adjustable to accommodate installation operations at different heights. In this embodiment, the lifting assembly preferably uses a lifting hydraulic cylinder 12, whose output end is provided with a connecting seat 13. The connecting seat 13 is detachably connected to the cross frame 2 by bolts, facilitating transportation and installation while ensuring the stability and reliability of the lifting operation.

[0024] The horizontal frame 2 is horizontally positioned on top of the lifting assembly, and the horizontal drive assembly is positioned on top of the horizontal frame 2. In this embodiment, the horizontal drive assembly includes a horizontal hydraulic cylinder 23, which is horizontally fixed to the horizontal frame 2 via a mounting bracket 24. The lifting device is connected to the output end of the horizontal drive assembly via a connecting assembly, and the connecting assembly is slidably connected to the horizontal frame 2 to ensure the stability of the lifting device during horizontal movement. The output end of the horizontal hydraulic cylinder 23 is connected to the connecting assembly, and the horizontal position of the lifting device is adjusted by driving the connecting assembly, thereby adapting to the lifting requirements of composite slabs at different locations.

[0025] The connecting assembly includes a connecting column 16, a mounting base 17, and a connecting rod 19. The connecting column 16 passes vertically through the cross frame 2 and is slidably connected to the cross frame 2 in the horizontal direction. The mounting base 17 is fixed to the top of the connecting column 16. The connecting rod 19 is horizontally fixed to the top of the mounting base 17 by a fixing seat 20, and its end is connected to the output end of the horizontal hydraulic cylinder 23.

[0026] Specifically, to further enhance the smoothness of sliding, a number of sliders 18 are provided between the bottom of the mounting base 17 and the crossbeam 2. The sliders 18 are slidably connected to the top of the crossbeam 2 to reduce friction and improve the accuracy of movement.

[0027] Specifically, the lifting equipment includes a mounting box 3 and four drive boxes 4 mounted on the mounting box 3. Each drive box 4 contains a drive device for controlling the winding and unwinding of the corresponding sling 5. Each sling 5 has a hook 6 at its bottom for suspending the composite slab. The drive device preferably includes a servo motor 9, a reducer 10, and a drum 11. The servo motor 9 drives the drum 11 to rotate via the reducer 10, achieving precise winding and unwinding of the sling 5. This allows for independent adjustment of the length of each sling 5, enabling fine-tuning of the height of each suspension point on the composite slab.

[0028] To monitor the horizontal status of the composite slab in real time, two connecting rods 7 are staggered between the four suspension cables 5, and the two connecting rods 7 are located on different horizontal planes. The two ends of each connecting rod 7 are hinged to the corresponding suspension cable 5. A level detector 8 is provided at the top of each connecting rod 7, preferably a dual-axis tilt sensor or a laser level, which can provide real-time feedback on the tilt angle and direction of the composite slab.

[0029] Furthermore, the connecting rod 7 is a telescopic structure, including a fixed rod 14 and a sliding rod 15. The fixed rod 14 and the sliding rod 15 are slidably connected, and the level detector 8 is installed on the top of the fixed rod 14. This design allows the connecting rod 7 to flexibly adjust its length according to the size of the composite slab, adapting to the hoisting of composite slabs of different specifications.

[0030] To enhance stability during hoisting, at least two hanging rings 21 are evenly arranged on the top of the mounting box 3 with its axis as the center. Each hanging ring 21 is fixed with an auxiliary connecting cable 22 to the connecting column 16 to prevent the hoisting device from separating from the connecting column 16 and falling accidentally.

[0031] In actual hoisting operations, operators first adjust the height of the crossbeam 2 using the lifting hydraulic cylinder 12, and then move the hoisting equipment directly above the composite slab using the horizontal hydraulic cylinder 23. After the sling 5 is connected to the composite slab via the hook 6, the drive unit is activated. The horizontal status of the composite slab is monitored in real time by the level detector 8, allowing operators to clearly identify which drive unit should be activated to control the raising and lowering of the corresponding sling 5 until the composite slab reaches a horizontal state, and then it is smoothly lowered to the installation position. Specifically: The hoisting components are equipped with height adjustment features, allowing the overall lifting height of the device to be flexibly adjusted according to on-site construction needs, adapting to different floor heights. The horizontal drive assembly enables precise horizontal movement of the lifting equipment, facilitating the accurate hoisting of the composite slab to the target installation position and reducing the difficulty of manual traction and positioning. Four independently driven slings 5 ​​allow for independent length adjustment of the four suspension points of the composite slab, facilitating horizontal adjustment. Two connecting rods 7, located at different horizontal planes, are staggered between the four slings 5, with both ends of the connecting rods 7 hinged to the corresponding slings 5. Each connecting rod 7, arranged at different heights, has a level sensor 8 at its top, allowing real-time and direct monitoring of the composite slab's horizontal state (tilt angle and direction) during hoisting. This provides accurate feedback to operators, facilitating the operation of different drive devices to extend and retract the corresponding slings 5, thereby adjusting the horizontal attitude of the composite slab. Compared to manual judgment, this significantly improves the convenience of adjusting the horizontal state of the composite slab during hoisting.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An adjustable composite slab hoisting device, characterized in that, include: Lifting bracket, cross frame (2), horizontal drive assembly and lifting tools; The hoisting support includes a base frame (1) and a lifting assembly mounted on the base frame (1), the lifting assembly being able to adjust the height in the vertical direction; The horizontal frame (2) is horizontally set on top of the lifting assembly, the horizontal drive assembly is set on top of the horizontal frame (2), the lifting device is connected to the output end of the horizontal drive assembly through the connecting assembly, and the connecting assembly is slidably connected to the horizontal frame (2); The lifting device includes a mounting box (3) and four drive boxes (4) set on the mounting box (3). Each drive box (4) is suspended by a sling (5), and each sling (5) is provided with a hook (6) at the bottom end. Each of the drive boxes (4) is provided with a drive device, which is used to control the raising and lowering of the corresponding sling (5); Two connecting rods (7) are interlaced between the four slings (5), and the two connecting rods (7) are located on different horizontal planes. The two ends of each connecting rod (7) are respectively hinged to the corresponding sling (5). Each link (7) is equipped with a level detector (8) at its top to monitor the level of the composite plate during hoisting.

2. The adjustable composite slab hoisting device as described in claim 1, characterized in that, Each of the aforementioned drive devices includes a servo motor (9), a reducer (10), and a drum (11). The output shaft of the servo motor (9) is connected to the drum (11) via the reducer (10), and the sling (5) is wound around the drum (11).

3. The adjustable composite slab hoisting device as described in claim 1, characterized in that, The lifting assembly includes a lifting hydraulic cylinder (12), on which a connecting seat (13) is provided. The connecting seat (13) is detachably connected to the cross frame (2) by bolts.

4. The adjustable composite slab hoisting device as described in any one of claims 1-3, characterized in that, The level detector (8) is a dual-axis tilt sensor or a laser level.

5. The adjustable composite slab hoisting device as described in claim 4, characterized in that, Each of the connecting rods (7) is a telescopic structure, including a fixed rod (14) and a sliding rod (15). The fixed rod (14) and the sliding rod (15) are slidably connected, and the level detector (8) is set on the top of the fixed rod (14).

6. The adjustable composite slab hoisting device as described in claim 5, characterized in that, The connecting assembly includes a connecting column (16), a mounting base (17), and a connecting rod (19). The connecting column (16) passes vertically through the cross frame (2) and is slidably connected to the cross frame (2) in the horizontal direction. The bottom end of the connecting column (16) is connected to the mounting box (3) by bolts. The mounting base (17) is fixed to the top end of the connecting column (16). The connecting rod (19) is horizontally fixed to the top of the mounting base (17) by a fixing seat (20). The end of the connecting rod (19) is connected to the output end of the horizontal drive assembly.

7. The adjustable composite slab hoisting device as described in claim 6, characterized in that, A number of sliders (18) are provided between the bottom of the mounting base (17) and the cross frame (2), and each slider (18) is slidably connected to the top of the cross frame (2).

8. The adjustable composite slab hoisting device as described in claim 6, characterized in that, The top of the mounting box (3) is also evenly provided with at least two hanging rings (21) centered on its axis line, and each hanging ring (21) is fixed with an auxiliary connecting cable (22) between it and the connecting column (16).

9. The adjustable composite slab hoisting device as described in claim 6, characterized in that, The horizontal drive assembly includes a horizontal hydraulic cylinder (23), which is horizontally mounted on top of the crossbeam (2) via a mounting bracket (24), and the output end of the horizontal hydraulic cylinder (23) is connected to the end of the connecting rod (19).

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