An indoor assembly type hoisting device for construction engineering
By designing an indoor prefabricated hoisting device that includes components such as a bottom support and threaded jacks, the problem of traditional hoisting equipment being difficult to use in confined spaces has been solved, enabling efficient and flexible hoisting operations that are suitable for various construction environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 黑龙江省建筑安装集团有限公司
- Filing Date
- 2025-10-10
- Publication Date
- 2026-08-04
AI Technical Summary
In construction environments with limited space or enclosed structures, such as indoor spaces, basements, pipe shafts, and equipment rooms, traditional large hoisting equipment has difficulty entering, resulting in low construction efficiency and even making it difficult to complete hoisting tasks.
An indoor prefabricated hoisting device for building engineering is adopted, including components such as a base support, threaded jack, support structure, fixed column, I-beam, locking mechanism, winch and traction rope. By combining these components, height adjustment, structural locking and hoisting operations can be achieved, adapting to narrow spaces and pipes of different sizes.
It enables efficient hoisting in confined spaces, is lightweight and reusable, adapts to different power conditions at construction sites, and improves construction efficiency and safety.
Smart Images

Figure CN224590594U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of indoor prefabricated hoisting technology, and in particular to an indoor prefabricated hoisting device for building engineering. Background Technology
[0002] In modern construction engineering, especially in electromechanical installation, pipe hoisting is a common and critical construction task. Traditional hoisting operations mainly rely on large lifting machinery, such as cranes and tower cranes, which are more suitable for outdoor or open spaces. However, in indoor, basement, pipe shaft, equipment room and other space-constrained or structurally enclosed construction environments, large hoisting equipment is difficult to access and is easily restricted by the height, width and surrounding obstacles during the hoisting process, resulting in low construction efficiency and even difficulty in completing the hoisting task. To address these issues, we propose an indoor prefabricated hoisting device for construction engineering. Utility Model Content
[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an indoor prefabricated hoisting device for building engineering.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: An indoor prefabricated hoisting device for building construction includes a base support, a bearing pipe installed on one side of the upper end of the base support, a threaded jack installed inside the bearing pipe, a support structure installed on the upper end of the threaded jack, a fixed column installed on the upper end of the support structure, a top plate fixed to the upper end of the fixed column, an I-beam penetrating through the fixed column, a locking mechanism installed on the I-beam, pulleys installed on both sides of the lower end of the I-beam, a winch fixed on one side of the upper end of the base support, a traction rope installed on the winch, the traction rope passing through two pulleys, and a hook connected to one end of the traction rope.
[0005] Preferably, the support structure includes two mutually fixed columns, one of which has a fall arrestor pipe fixed to its lower end, and a jack outer sleeve fixed to its upper end. The upper end of the threaded jack passes through the jack outer sleeve and is connected to the lower end of the fall arrestor pipe. The upper end of one of the columns is fixed to the lower end of the fixed column.
[0006] Preferably, a warning device is installed on one side of the column, the warning device including a warning light and a buzzer.
[0007] Preferably, the locking mechanism includes two bolts that pass through both sides of the upper end of the top plate, the upper end of the I-beam is provided with a plurality of mounting holes at equal intervals, the upper end of the top plate is provided with four mounting slots, and a bolt on the same side passes through a mounting slot and a mounting hole on the same side.
[0008] Preferably, the upper end of the fixing post is provided with a through hole, through which the traction rope passes.
[0009] When used in this utility model: 1. Foundation fixing: Place the bottom support on a flat ground to ensure the overall stability of the device; 2. Height adjustment: Start the threaded jack and push the support structure up through the jack sleeve until the top of the top plate of the fixed column touches the bottom of the second floor slab to ensure stable positioning and prevent side overturning; 3. Structural locking: The jacks are protected by fall arresters to prevent the structure from falling in the event of jack failure; 4. Lifting boom adjustment: The front and rear positions of the I-beams on the fixed column are adjusted in advance, and the front and rear positions are fixed by locking mechanism to adapt to pipes of different sizes; 5. Lifting operation: Start the winch, and the traction rope drives the hook through the pulley to carry out the lifting operation. If there is no power, a manual hoist can be used instead. 6. Operational Warning: During the operation of the device, the warning device will automatically activate, alerting surrounding personnel to pay attention to safety through audible and visual signals; 7. Disassembly and Recycling: After the hoisting task is completed, each component is disassembled in sequence and collected for reuse.
[0010] This utility model has the following advantages: 1. The device uses lightweight, high-strength materials and features an optimized structural design, which significantly reduces the overall weight of the equipment, making it easy to handle manually and move on-site, and suitable for operation in confined spaces; 2. All components are connected by standardized flanges or quick-connect fittings, which greatly shortens the installation and disassembly time of the equipment, improves construction efficiency, and facilitates equipment maintenance and component replacement. 3. The device is suitable for both electric winch hoisting and manual hoist hoisting, adapting to the power conditions of different construction sites. The hoisting arm is adjustable to accommodate pipes of different diameters and lengths, providing high flexibility. In summary, this utility model is easy to handle manually and move on-site, suitable for operation in confined spaces, applicable to both electric winch hoisting and manual hoist hoisting, adaptable to different power conditions at construction sites, adjustable lifting arm to accommodate pipes of different diameters and lengths, highly flexible, and reusable components. It is suitable for areas such as indoor spaces, basements, pipe shafts, and equipment rooms where traditional hoisting equipment is difficult to access. Attached Figure Description
[0011] Figure 1 This is a structural diagram of the present invention; Figure 2A structural diagram of the I-beam of this utility model; Figure 3 for Figure 1 Enlarged view of the structure at point A.
[0012] In the diagram: 1 Bolt, 2 Mounting hole, 3 I-beam, 4 Hook, 5 Top plate, 6 Pulley, 7 Fixed column, 8 Column, 9 Warning device, 10 Traction rope, 11 Fall arrestor pipe, 12 Jack outer sleeve, 13 Mounting groove, 14 Bearing pipe, 15 Bottom support, 16 Winch, 17 Through hole. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0014] Reference Figure 1-3 An indoor prefabricated hoisting device for building construction includes a bottom support 15, which is welded from high-strength steel and has an anti-slip rubber pad installed at its bottom to improve its anti-slip ability, and is especially suitable for concrete or smooth metal floors. A bearing pipe 14 is installed on one side of the upper end of the bottom support 15. A threaded jack is installed inside the bearing pipe 14. The threaded jack has a self-locking function to prevent the structure from falling due to power failure or operational errors. The outer sleeve of the jack plays a guiding and protective role, enhances the stability of the jack operation, and is equipped with a lubrication system to extend its service life. The upper end of the threaded jack is equipped with a support structure, the upper end of the support structure is equipped with a fixed column 7, the upper end of the fixed column 7 is fixed with a top plate 5, and an I-shaped steel 3 is inserted through the fixed column 7. The design of the I-shaped steel enhances the load-bearing capacity of the lifting arm. The locking mechanism adopts a quick-plug structure, which facilitates quick adjustment of the lifting arm length to adapt to the size requirements of different pipes or equipment. A locking mechanism is installed on the I-beam 3. Pulleys 6 are installed on both sides of the lower end of the I-beam 3. A winch 16 is fixed on one side of the upper end of the bottom support 15. A traction rope 10 is installed on the winch 16. The traction rope 10 passes through the two pulleys 6. One end of the traction rope 10 is connected to a hook 4. The pulleys adopt a rolling bearing structure to reduce frictional resistance. The traction rope can be made of high-strength steel wire rope or carbon fiber composite material rope to improve safety and durability. The hook is equipped with an anti-disengagement device, which conforms to GB / T10051.5-2010 standard. The support structure includes two mutually fixed columns 8. The lower end of one column 8 is fixed with a fall arrestor tube 11, and the upper end of the bearing tube 14 is fixed with a jack outer tube 12. The upper end of the threaded jack passes through the jack outer tube 12 and is connected to the lower end of the fall arrestor tube 11. The upper end of one column 8 is fixed to the lower end of the fixed column 7. The fall arrestor tube 11 is equipped with a buffer spring and a limiting device inside as a safety redundancy design to prevent the structure from suddenly falling when the main jack fails. A warning device 9 is installed on one side of the column 8. The warning device 9 includes a warning light and a buzzer. The warning device is linked to the winch and is automatically turned on when the operation starts. The light is a high-brightness LED strobe light, and the sound alarm is an adjustable volume buzzer to adapt to different noise environments. The locking mechanism includes two bolts 1 that pass through both sides of the upper end of the top plate 5, multiple mounting holes 2 that are evenly spaced at the upper end of the I-beam 3, four mounting slots 18 that are provided at the upper end of the top plate 5, and a bolt 1 on the same side that passes through a mounting slot 18 and a mounting hole 2 on the same side. The upper end of the fixed column 7 is provided with a through hole 17, through which the traction rope 10 passes. The upper end of the bottom support 15 is provided with mounting holes 13 at all four corners. The winch is electrically driven and has functions such as overload protection and limit switch. In the event of a power outage, it can be quickly replaced with a manual hoist as a backup power source to ensure emergency operation capability.
[0015] When used in this utility model: 1. Foundation fixing: Place the bottom support 15 on a flat ground to ensure the overall stability of the device; 2. Height adjustment: Start the threaded jack and push the support structure up through the jack sleeve 12 until the top of the top plate 5 at the top of the fixed column 7 touches the bottom of the second floor slab to ensure stable positioning and prevent side overturning. 3. Structural locking: The fall arrestor tube 11 is used to protect the jacks and prevent the structure from falling in the event of jack failure; 4. Lifting boom adjustment: The front and rear positions of the I-beam 3 on the fixed column are adjusted in advance, and the front and rear positions are fixed by the locking mechanism to adapt to pipes of different sizes; 5. Lifting operation: Start the winch 16, and the traction rope 10 drives the hook 4 through the pulley 6 to carry out the lifting operation. If there is no power, a manual hoist can be used instead. 6. Operational warning: During the operation of the device, the warning device 9 will automatically activate, alerting surrounding personnel to pay attention to safety through audible and visual signals; 7. Disassembly and Recycling: After the hoisting task is completed, each component is disassembled in sequence and collected for reuse.
[0016] This invention can also be applied in the following fields: Construction site: Used for hoisting mechanical and electrical equipment such as air ducts, water pipes, and cable trays; Interior decoration projects: suitable for high-altitude installations such as ceilings, keels, and lighting fixtures; Maintenance and repair work: Facilitates the replacement of equipment at height or the repair of structures; Warehousing and logistics system: can be used for the handling and installation of equipment within a warehouse.
[0017] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. An indoor prefabricated hoisting device for building construction, comprising a bottom support (15), characterized in that, A bearing pipe (14) is installed on one side of the upper end of the bottom support (15). A threaded jack is installed inside the bearing pipe (14). A support structure is installed on the upper end of the threaded jack. A fixed column (7) is installed on the upper end of the support structure. A top plate (5) is fixed on the upper end of the fixed column (7). An I-beam (3) is passed through the fixed column (7). A locking mechanism is installed on the I-beam (3). Pulleys (6) are installed on both sides of the lower end of the I-beam (3). A winch (16) is fixed on one side of the upper end of the bottom support (15). A traction rope (10) is installed on the winch (16). The traction rope (10) passes through two pulleys (6). A hook (4) is connected to one end of the traction rope (10).
2. The indoor prefabricated hoisting device for building engineering according to claim 1, characterized in that: The support structure includes two mutually fixed columns (8), one of which has a fall arrestor pipe (11) fixed at its lower end, and a jack outer sleeve (12) fixed at its upper end. The upper end of the threaded jack passes through the jack outer sleeve (12) and is connected to the lower end of the fall arrestor pipe (11). The upper end of one of the columns (8) is fixed to the lower end of the fixed column (7).
3. The indoor prefabricated hoisting device for building engineering according to claim 2, characterized in that: A warning device (9) is installed on one side of the column (8), and the warning device (9) includes a warning light and a buzzer.
4. The indoor prefabricated hoisting device for building engineering according to claim 1, characterized in that: The locking mechanism includes two bolts (1) that pass through both sides of the upper end of the top plate (5). The upper end of the I-beam (3) is provided with multiple mounting holes (2) at equal intervals. The upper end of the top plate (5) is provided with four mounting grooves (13). One bolt (1) on the same side passes through one mounting groove (13) and one mounting hole (2) on the same side.
5. The indoor prefabricated hoisting device for building engineering according to claim 1, characterized in that: The upper end of the fixed column (7) is provided with a through hole (17), and the traction rope (10) passes through the through hole (17).