Movable cross hoisting device
By designing a mobile, span-crossing hoisting device, and utilizing adjustable-height supports and telescopic lifting beams, the problem of hoisting in confined spaces such as underground parking garages was solved, enabling efficient and safe hoisting operations and improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-10
AI Technical Summary
During construction, especially when installing equipment in underground smart parking garages and underground floors, existing hoisting equipment cannot enter, resulting in high hoisting difficulty and low efficiency. This poses safety hazards and construction obstacles, particularly in multi-span construction scenarios.
Design a mobile span-crossing hoisting device, including a front support, a rear support, a lifting beam, a lifting beam column, an electric hoist, and a manual screw jack. By adjusting the support height and the lifting beam extension, combined with a hydraulic or electric adjustable rod telescopic structure, flexible hoisting operations can be achieved.
It enables efficient, safe, and rapid hoisting in confined spaces, improving construction efficiency, reducing manpower and material input, lowering construction costs, expanding the scope of application, and ensuring construction safety.
Smart Images
Figure CN223983358U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of over-span hoisting technology, and in particular to a movable over-span hoisting device. Background Technology
[0002] In the current construction industry, underground intelligent parking garages, building-related water supply, fire protection, heating, ventilation and other equipment are generally designed in underground floors. Due to the limited installation space, existing hoisting equipment cannot enter the entire construction area, and large equipment such as cranes cannot be used. Especially when the building has multiple spans, the hoisting of equipment across spans is difficult, the hoisting efficiency is low, and the construction is greatly hindered.
[0003] Conventional cross-span hoisting typically employs hoisting equipment such as winches, hand-operated hoists, and tripods in conjunction with scaffolding to lift equipment and materials. However, in installation environments with multiple workstations and repetitive tasks, hoisting equipment must be repeatedly erected. Traditional hoisting methods are inefficient, involve a heavy workload for workers, are cumbersome, pose numerous safety hazards, waste significant human and material resources, and severely impact project progress. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, this utility model provides a movable span-crossing hoisting device. It uses a hoisting beam with an adjustable length according to the building span, which is set on the top of the front and rear supports. The hoisting beam extends out of the front support, and the end of the hoisting beam is equipped with a hoisting beam column with adjustable height. The extended hoisting beam and hoisting beam column enable the hoisting of equipment and building materials across the span, achieving efficient, safe, convenient and fast continuous hoisting operations.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A movable span-crossing hoisting device includes a front support, a rear support, a lifting beam, a lifting beam column, an electric hoist, a connecting beam, and a manual screw jack. The front and rear supports are arranged in parallel with a front-to-back interval and are connected by the connecting beam. The front and rear supports are height-adjustable telescopic structures. A lifting beam is installed in the span direction between the top of the front and rear supports, extending from the front end of the front support. A lifting beam column is installed at the end of the extended end of the lifting beam, and the lifting beam column is a height-adjustable telescopic structure. Manual screw jacks are installed on both sides of the connecting beam near the front and rear supports, and the bottom of the manual screw jacks is equipped with support feet. An electric hoist is installed on the lifting beam.
[0007] Furthermore, the elongation of the hanging beam extending from the front support is adjusted according to the distance of the building span, and the elongation is at least greater than one building span.
[0008] Furthermore, both the front and rear brackets are provided with positioning pin holes at their lower parts, and positioning pins are installed in the positioning pin holes to limit the height of the front and rear brackets.
[0009] Furthermore, the height adjustment of the front and rear supports is driven by a manual winch.
[0010] Furthermore, the height adjustment of the lifting beam column is driven by hydraulic or electric means.
[0011] Furthermore, the front support, rear support, hanging beam, hanging beam column, and connecting crossbeam are all detachably connected.
[0012] Furthermore, limiting elastic elements are provided at both ends of the lifting beam.
[0013] Furthermore, the front support is equipped with directional wheels at the bottom, and the rear support is equipped with omnidirectional wheels at the bottom.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1) The height can be adjusted by the front and rear supports to adapt to hoisting in basements and indoor spaces with limited height; by extending the extension of the hoisting beam and the hoisting beam column, it can realize the hoisting operation environment of building span. The hoisting operation height can be adjusted, and hoisting of different building spans can be realized. The hoisting adjustment is flexible and convenient, and the hoisting is convenient and fast.
[0016] 2) The bottom of the front and rear supports utilizes directional wheels and swivel wheels to enable the hoisting device to move freely. Especially when performing the same operation repeatedly at multiple equal workstations, the movement is quick, which greatly improves work efficiency, saves a lot of construction costs, saves a lot of manpower and material resources, optimizes the operation procedure, and ensures personal safety and the safety of hoisting equipment.
[0017] 3) The front support, rear support, lifting beam, lifting beam column and connecting crossbeam of the device are all detachable connections composed of flanges and bolts. Disassembly and assembly are simple and convenient, which facilitates the construction and transportation of the mobile span hoisting device. It is suitable for different construction environments, has a wide range of applications and strong practicality. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a movable span hoisting device according to the present invention.
[0019] Figure 2 This is a schematic diagram of the anti-slip pad block structure described in this utility model.
[0020] Figure 3 This is a schematic diagram of the hoisting method of the mobile span hoisting device described in this utility model.
[0021] In the diagram: 1. Front support; 2. Rear support; 3. Diagonal support; 4. Connecting beam; 5. Lifting beam; 6. Lifting beam column; 7. Manual winch; 8. Positioning pin hole; 9. Positioning pin; 10. Directional wheel; 11. Universal wheel; 12. Manual screw jack; 13. Elastic limiter; 14. Support foot; 15. Electric hoist; 16. Telescopic rod; 17. Anti-slip block; 18. Anti-slip plate; 19. Material; 20. Building span. Detailed Implementation
[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings:
[0023] like Figures 1-3 As shown, the working principle of a movable span-crossing hoisting device is as follows: Adjust the height of the front support 1 and the rear support 2, insert positioning pins 8 into the front support 1 and the rear support 2 to achieve the hoisting height positioning of the front support 1 and the rear support 2; the lifting beam 5 extends out of the front end of the front support 1, and the extension of the lifting beam 5 spans the length of the building span 20; the end of the lifting beam 5 is equipped with a lifting beam column 6, and the lifting beam 5 is equipped with an electric hoist 15; the material 19 is hoisted across the span through the lifting beam 5 and the lifting beam column 6; the length of the lifting beam 5 can be adjusted according to the building span 20, and the height of the lifting beam column 6 can be adjusted to ensure that the bottom of the lifting beam column 6 is stably and flatly fixed on the ground of the span, thereby achieving efficient, safe, convenient, fast, and continuous hoisting operations.
[0024] like Figures 1-3As shown, a movable span-crossing hoisting device includes a front support 1, a rear support 2, a lifting beam 5, lifting beam columns 6, an electric hoist 15, a manual winch 7, diagonal supports 3, a connecting beam 4, and a manual screw jack 12. The front support 2 and rear support 3 are portal frame structures, where the tops of the columns on both sides are connected to the beams. The front support 1 and rear support 2 are arranged parallel to each other at intervals. The front support 1 and rear support 2 are connected by the connecting beam 4, which is divided into two sections, connecting the lower parts of the columns on both sides of the front support 1 and rear support 2 respectively. Diagonal supports 3 are installed between the columns on both sides of the front support 1 and the connecting beams 4, and between the columns on both sides of the rear support 2 and the connecting beams 4. The diagonal supports 3 are installed at a 45° angle for reinforcement and stability. The front support 1 and rear support 2 are telescopic structures, and their height is adjusted by the manual winch 7. The manual winch 7 is mounted on the inclined support 3. The manual winch 7 is equipped with a ratchet and uses a wire rope for traction, which improves the safety of adjusting the height of the front support 1 and the rear support 2. There are 4 sets of positioning pin holes 8 distributed on the lower part of the two side columns of the front support 1 and the rear support 2. When the front support 1 and the rear support 2 reach the hoisting construction height, positioning pins 9 are inserted into the positioning pin holes 8 to position the hoisting height. The front support 1 and the rear support 2 can be height-adjusted and can be used in work sites of different heights. A suspension beam 5 is installed across the span between the top of the front support 1 and the rear support 2. The suspension beam 5 extends from the front end of the front support 1, and a suspension beam column 6 is installed at the end of the extended end of the suspension beam 5. The extension of the suspension beam 5 is greater than the length of at least one building span 20. Over-span hoisting is achieved through the suspension beam 5 and the suspension beam column 6. The suspension beam column 6 is a telescopic structure, and a hydraulic or electric drive adjustment rod 16 is used to extend and retract the suspension beam column 6 to adjust its height, ensuring that the suspension beam column 6 can be stably supported on the ground at the over-span support position. Manual screw jacks 12 are installed at both ends of the connecting beam 4 near the front support 1 and the rear support 2. Support feet 14 are installed at the bottom of the manual screw jacks 12. When hoisting over the span, the height of the support feet 14 is adjusted by the manual screw jacks 12, using the support feet 14 to raise the front support 1 and the rear support 2, so that the directional wheels 10 of the front support 1... The casters 11 of the rear support 2 are suspended in the air, and anti-slip blocks 17 are placed at both ends below the connecting crossbeam 4. Anti-slip plates 18 are set on the top of the anti-slip blocks 17. The anti-slip plates 18 are placed on the lower surface of the connecting crossbeam 4. The anti-slip blocks 17 can withstand the corresponding load of the hoisted material 19, so that the entire movable cross-span hoisting device can hoist stably and reliably. The hoisting beam 5 is equipped with an electric hoist 15. The hoisting beam 5 is made of I-beam. The lower horizontal plate of the I-beam serves as the running track of the electric hoist 15. The electric hoist 15 is selected according to 1.5 times the maximum load. The material 19 is hoisted by the electric hoist 15. After the hoisting is stable and reliable, the electric hoist 15 is moved along the hoisting beam 5 to the hoisting beam column 6 to realize the cross-span hoisting of the material 19. The material 19 is placed in the cross-span installation position. The two ends of the hoisting beam 5 are equipped with elastic limiters 13 to limit the electric hoist 15.
[0025] Furthermore, the front support 1, rear support 2, lifting beam 5, lifting beam column 6, and connecting crossbeam 4 are all detachable connected by flanges and high-strength bolts, which makes disassembly and assembly simple and convenient, reusable, and easy to transport and handle the mobile span lifting device during construction. It is suitable for different construction environments and has a wide range of applications.
[0026] Furthermore, the front support 1 is provided with a directional wheel 10 at its bottom, and the rear support 2 is provided with a universal wheel 11 at its bottom. The universal wheel 11 realizes the transfer direction of the movable cross-span hoisting device, and the directional wheel 10 realizes the forward and backward movement of the movable cross-span hoisting device.
[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A portable overcross hoisting device, comprising a front support, a rear support, a hoisting beam, a hoisting beam stand, an electric hoist, a connecting beam and a manual screw rod elevator, the front support and the rear support are arranged in parallel and spaced apart front and rear, and the front support and the rear support are connected by the connecting beam, characterized in that, The front support and the rear support are height-adjustable telescopic structures, a hanging beam is arranged between the top of the front support and the top of the rear support in a span direction, the hanging beam extends from the front end of the front support, an end of the extending end of the hanging beam is provided with a hanging beam stand, the hanging beam stand is a height-adjustable telescopic structure, a manual screw lifter is arranged on both sides of the connecting beam close to the front support and the rear support, and a support foot is arranged at the bottom of the manual screw lifter.
2. The portable span-erecting hoisting device according to claim 1, characterized in that The extension amount of the hanging beam extending out of the front support is adjusted according to the distance of the building span, and the extension amount is at least greater than one building span.
3. The portable span-erecting hoisting device according to claim 1, characterized in that, The lower part of the front support and the lower part of the rear support are provided with positioning pin holes, and a positioning pin is arranged in the positioning pin hole to limit the height of the front support and the rear support.
4. The portable span-erecting hoisting device according to claim 1, characterized in that, The driving mode of the height adjustment of the front support and the rear support adopts a manual winch.
5. The portable span-erecting hoisting device according to claim 1, wherein, The driving mode of the height adjustment of the hanging beam stand adopts hydraulic pressure or electricity.
6. The portable span-erecting hoisting device according to claim 1, characterized in that The front support, the rear support, the hanging beam, the hanging beam stand and the connecting beam are all detachably connected.
7. The portable span-erecting hoisting device according to claim 1, characterized in that Limiting elastic members are arranged at both ends of the hanging beam.
8. The portable span-erecting hoisting device according to claim 1, characterized in that, Directional wheels are arranged at the bottom of the front support, and universal wheels are arranged at the bottom of the rear support.