Assembled reinforced concrete component hoisting device
By employing an all-around lifting device in prefabricated buildings, utilizing C-shaped steel welded square frames and adjustable lifting columns, the complex problem of lifting steel-concrete components was solved, achieving efficient and safe lifting, reducing costs and construction time, and promoting the industrialization of construction.
Patent Information
- Application Number
- CN202520594814.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-01
AI Technical Summary
In existing prefabricated buildings, the hoisting methods for steel-concrete components are complex, making it difficult to achieve efficient and safe single-machine operation, resulting in high costs and long construction periods. Furthermore, traditional hoisting methods fail to fully reflect the advantages of prefabricated buildings.
By adopting an all-around lifting method with increased lifting points, and utilizing a square lifting frame welded from C-shaped steel, equipped with multiple hooks and adjustable square columns, combined with lifting tools and limit pins, precise and efficient lifting of different precast steel-concrete components can be achieved.
It enables precise, efficient, and safe hoisting of different precast steel-concrete components, reducing costs, shortening construction time, improving construction efficiency, reducing environmental pollution, and advancing the process of building industrialization.
Smart Images
Figure CN223836908U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lifting tools, specifically relating to a lifting device for prefabricated steel-concrete components. Background Technology
[0002] Currently, tower cranes are the most popular method for hoisting prefabricated building structures both domestically and internationally. Tower cranes have a hoisting capacity of 3 to 100 tons and a boom length of 40 to 80 meters. The equipment model depends on the height and floor plan of the building, the weight of the components, and the installation location. They are generally used as single-machine operations and are relatively economical.
[0003] Precast reinforced concrete components are diverse in type, large in quantity, complex in joints, and require high technical expertise. They are typically hoisted from multiple points on a single component, necessitating careful consideration of the hoisting sequence and methods. Traditional hoisting methods often employ balance beams and frames to avoid direct contact between steel wire ropes and the concrete components. Different concrete components require different hoisting devices, necessitating frequent switching. This prevents the full realization of the advantages of precast construction and creates a misconception that precast construction is not more efficient or faster than traditional cast-in-place structures. Therefore, it is necessary to develop a balanced hoisting device suitable for different concrete components to address these issues. Summary of the Invention
[0004] To address the aforementioned issues, this utility model discloses a prefabricated steel-concrete component hoisting device. By increasing the number of hoisting points and employing an all-around hoisting method, it can accurately, efficiently, and safely hoist different prefabricated steel-concrete components, thereby reducing costs, shortening the construction period, and saving expenses.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A prefabricated steel-concrete composite component hoisting device includes a hoisting frame. The hoisting frame is a square structure welded from four C-shaped steels. A lifting ring is provided on the top of the C-shaped steels. At least two hooks are provided on the outer side of the C-shaped steels at the front and rear ends of the hoisting frame. Lifting tools are hung on the hooks. The hoisting frame has reinforcing ribs inside. Two horizontal square tubes are provided on the inner side of the C-shaped steels on the left and right sides of the hoisting frame. Square columns are provided inside the square tubes. The square columns extend outside the C-shaped steels on the left and right sides of the hoisting frame. A hook is also provided at the outermost end of the square column. Matching connection holes are provided on the square tubes and square columns. Limiting pins are provided in the connection holes. The number of connection holes is ≥2.
[0007] As an improvement of this utility model, a safety plate is provided on the hook, and the safety plate is connected to the hook by a pin and a spring.
[0008] As an improvement of this utility model, the lifting device includes a square ring, a wire rope and a hook, the square ring and the hook are connected by the wire rope, and the square ring is hung on the hook.
[0009] As an improvement of this utility model, the reinforcing rib is a cross-shaped steel welded together.
[0010] As an improvement of this utility model, the number of upper limit pins for each square column is ≥2.
[0011] The beneficial effects of this utility model are as follows:
[0012] This utility model discloses a prefabricated steel-concrete component hoisting device, which adopts an increased hoisting point and all-round hoisting method to accurately, efficiently and safely hoist different prefabricated steel-concrete components, thereby reducing costs, shortening the construction period and saving costs. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] List of identifiers in attached diagrams:
[0015] 1. Lifting frame, 2. Lifting ring, 3. Lifting hook, 4. Lifting tool, 5. Reinforcing rib, 6. Square tube, 7. Square column, 8. Connecting hole, 9. Limit pin, 10. Safety plate, 11. Square ring, 12. Wire rope, 13. Hook. Detailed Implementation
[0016] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.
[0017] As shown in the figure, the prefabricated steel-concrete component hoisting device of this utility model includes a hoisting frame 1. The hoisting frame 1 is a square structure welded from four C-shaped steels, with the entire surface of the C-shaped steels exposed. A lifting ring 2 is provided on the top of the C-shaped steels. At least two hooks 3 are provided on the outer side of the C-shaped steels at the front and rear ends of the hoisting frame 1. Lifting tools 4 are hung on the hooks 3. The hoisting frame 1 has reinforcing ribs 5 inside. Two horizontal square tubes 6 are provided on the inner side of the C-shaped steels on the left and right sides of the hoisting frame 1. Square columns 7 are provided inside the square tubes 6. The square columns 7 extend out of the C-shaped steels on the left and right sides of the hoisting frame 1. A hook 3 is also provided at the outermost end of the square column 7. Matching connecting holes 8 are provided on the square tubes 6 and the square columns 7. Limiting pins 9 are provided in the connecting holes 8. The number of connecting holes 8 is ≥2.
[0018] The present invention discloses a prefabricated steel-concrete component hoisting device, which uses a tower crane hook to hook the four corner lifting rings 2, and the lower lifting device to hoist prefabricated components such as composite slabs and stairs; the hoisting is convenient, safe and reliable.
[0019] The lifting of the composite slab uses multiple hooks 3 on the outer side of the C-shaped steel at the front and rear ends of the lifting frame 1. The lifting point position can be adjusted according to the size of the composite slab. Moreover, the lifting device 4 is hung separately on the hook 3, and the lifting point position can be changed at any time. The four lifting devices 4 hook the composite slab from below, ensuring the stability of the composite slab during the lifting process.
[0020] The hoisting of the staircase uses the hooks 3 at the outer ends of the square columns 7 on the left and right sides of the hoisting frame 1. Because the staircases are of different lengths and have height differences, the length can be adjusted by using the telescopic square columns. The hoisting device 4 can be replaced with a long steel wire rope, which can overcome the above problems and lift the staircase away smoothly.
[0021] The hook 3 described in this application is welded to the outside of a C-shaped steel or a square column. The C-shaped steel is welded together to form a square structure with internal reinforcing ribs 5. The square tube 6 is placed between the C-shaped steel and the reinforcing ribs. The overall structure is stable and will not deform significantly. The square tube 6 has an opening on the outside, and the square column 7 can slide inside. It is fixed by two limiting pins 9. When in use, the limiting pins 9 can be pulled out, and the square column 7 can be moved. Once it is in place, it can be inserted again.
[0022] The reinforcing rib 5 described in this invention is a cross-shaped steel welded together, which serves to fix the C-shaped steel to the square tube.
[0023] The lifting device 4 of this utility model includes a square ring 11, a wire rope 12, and a hook 13. The square ring 11 and the hook 13 are connected by the wire rope 12. In use, the square ring 11 is simply hung on the hook 3, making replacement convenient. Moreover, the wire rope 12 comes in various lengths, facilitating the lifting of different prefabricated components.
[0024] To prevent the square ring 11 from slipping out of the hook 3, this utility model provides a safety plate 10 on the hook 3. The safety plate 10 is connected to the hook 3 by a pin and a spring. After the square ring 11 is hooked, the safety plate 10 automatically resets, increasing safety.
[0025] This utility model discloses a prefabricated steel-concrete component hoisting device, which can accurately, efficiently, and safely hoist different prefabricated steel-concrete components, improving efficiency, shortening construction period, and solving the current problems of rising and insufficient labor costs in the construction industry. It objectively saves on the input and use of steel pipes, formwork, and timber, thus reducing costs. Because prefabricated steel-concrete components are manufactured in batches in factories, the degree of industrialization increases, and industrial division of labor is strengthened, which is conducive to the promotion of industrialized construction. On-site wet work is greatly reduced, minimizing dust, air, noise pollution, and waste emissions, thus increasing environmental benefits.
[0026] It should be noted that the above content merely illustrates the technical concept of this utility model and cannot be used to limit the scope of protection of this utility model. For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and all such improvements and modifications fall within the scope of protection of the claims of this utility model.
Claims
1. A hoisting device for prefabricated steel-concrete components, including a hoisting frame, characterized in that: The hoisting frame is a square structure welded from four C-shaped steels. A lifting ring is provided on the top of the C-shaped steels. At least two hooks are provided on the outer side of the C-shaped steels at the front and rear ends of the hoisting frame. Lifting tools are hung on the hooks. The hoisting frame has reinforcing ribs inside. Two horizontal square tubes are provided on the inner side of the C-shaped steels on the left and right sides of the hoisting frame. Square columns are provided inside the square tubes. The square columns extend outside the C-shaped steels on the left and right sides of the hoisting frame. A hook is also provided at the outermost end of the square column. Matching connecting holes are provided on the square tubes and square columns. Limiting pins are provided in the connecting holes. The number of connecting holes is ≥2.
2. The prefabricated steel-concrete component hoisting device according to claim 1, characterized in that: The hook is equipped with a safety plate, which is connected to the hook by a pin and a spring.
3. The prefabricated steel-concrete component hoisting device according to claim 1, characterized in that: The lifting device includes a square ring, a wire rope, and a hook. The square ring and the hook are connected by the wire rope, and the square ring is hung on the hook.
4. The prefabricated steel-concrete component hoisting device according to claim 1, characterized in that: The reinforcing rib is a cross-shaped steel section welded together.
5. The prefabricated steel-concrete component hoisting device according to claim 1, characterized in that: The number of upper limit pins for each square column is ≥2.