Prefabricated part hoisting auxiliary device for construction engineering construction
By designing the wheel and sliding block structure within the frame, the precise control and rotation functions of the precast component hoisting auxiliary device were achieved, solving the problems of uneven and inaccurate hoisting of existing devices and significantly improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG CHENGXI CONSTR ENG CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-19
AI Technical Summary
Existing precast component hoisting auxiliary devices are difficult to precisely control the hook height, lack convenient and efficient wall panel turning functions, and cannot flexibly adjust the hook position, resulting in uneven or inaccurate hoisting, posing safety hazards and affecting construction efficiency.
A hoisting auxiliary device was designed, comprising a frame, connecting rod, reel, gear, and slide. The wall panel rotation function is realized through electric push rod and sliding assembly. Combined with adjustable slide and positioning block, the precise alignment and stability of the hook position are ensured, adapting to wall panels of different sizes.
It enables wall panels to be moved from horizontal to vertical without manual adjustment, reducing construction difficulty and safety risks, improving the accuracy and efficiency of hoisting, and is highly adaptable, thereby enhancing work efficiency and safety on the construction site.
Smart Images

Figure CN224258085U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction engineering, and in particular to an auxiliary device for hoisting precast components in construction engineering. Background Technology
[0002] In the field of modern construction, with the booming development of prefabricated buildings, the application of precast components is becoming increasingly widespread. The hoisting of precast components has become a crucial link in the construction process, and its efficiency and safety directly affect the progress and quality of the entire project. However, precast components are large in size and weight, and come in various shapes and structures. Relying solely on traditional hoisting equipment for direct lifting is insufficient to meet the requirements for precise installation. Auxiliary devices can enhance stability and prevent components from swaying or falling. For example, when hoisting large wall panels, they can prevent dangers caused by an unstable center of gravity.
[0003] However, in actual use, the existing component hoisting auxiliary devices still have the following technical problems:
[0004] Existing equipment struggles to precisely control hook height, lacks convenient and efficient wall panel turning capabilities, and has limited adjustment of wall panel tilt angles. Most installations require workers to manually and laboriously push the wall panel from a horizontal to a vertical position at height using additional tools. This is not only complex but also poses significant safety risks; errors can cause the wall panel to sway or even fall, failing to meet complex installation requirements. Furthermore, the lack of adjustability in its structure prevents flexible hook position adjustments when handling wall panels of varying sizes. When hoisting large building exterior wall panels, the hook spacing may not match the panel dimensions, leading to uneven stress and potential safety hazards. Conversely, when hoisting small interior partition wall panels, precise hook alignment is difficult, causing installation difficulties and significantly impacting the accuracy and convenience of hoisting operations. Frequent hoisting errors due to size mismatches severely waste construction time and consequently reduce overall work efficiency on the construction site.
[0005] In response to this technical problem, this application proposes an auxiliary device for hoisting precast components in construction engineering. Utility Model Content
[0006] The purpose of this utility model is to address the shortcomings of existing technologies, such as the inconvenience of adjusting the tilt angle during installation and the low adaptability to wall panels of different sizes. The proposed device is an auxiliary hoisting device for prefabricated components in construction projects. This device enables the rotation function of the wall panels during installation, eliminating the need for manual adjustment by construction personnel at height, reducing construction difficulty and safety risks, and improving construction efficiency and installation accuracy. Simultaneously, it enhances adaptability to wall panels of different sizes, thereby improving on-site work efficiency and management level.
[0007] To achieve the above objectives, the present invention provides the following technical solution:
[0008] A precast component hoisting auxiliary device for construction engineering includes a frame: a connecting rod 1 is fixedly connected to the front side of the inner wall of the frame; the left and right sides of the outer wall of the connecting rod 1 are connected to the left and right sides of the frame via connecting rod 2; the connecting rod 1 has an installation groove 1 inside, and the connecting rod 2 has an installation groove 2 inside; the installation groove 1 and installation groove 2 are connected; a sheave is rotatably connected to the left and right sides of the inner wall of the installation groove 2; the adjacent sides of the sheaves are connected via a rotating rod; a gear is fixedly connected to the middle of the outer side of the rotating rod; the installation groove 1 is connected via... The sliding assembly is connected to a toothed plate, which meshes with a gear. A traction rope is provided inside the reel. Wire grooves are provided at both ends of the front side of the bottom of the frame. The frame is connected to a slide block via a movable assembly. A through groove is provided at the bottom of the front slide block. A limit wheel is rotatably connected to the inner wall of the through groove. The traction rope passes through the through groove and is connected to the limit wheel. A second traction rope is provided at the bottom of the rear slide block. A hook is installed at the bottom of both the first and second traction ropes. The hook is connected to a wall panel via a traction ring.
[0009] Furthermore, positioning grooves are provided at the front and rear ends of the top left and right sides of the frame, and limiting grooves are provided at the bottom left and right ends of the slide block. A positioning block is slidably connected to the inner wall of the limiting groove. Through holes are provided on the left and right sides of the positioning block. Insertion holes are provided on the left and right sides of the inner wall of the limiting groove. A positioning bolt is detachably connected to the inner wall of the through hole. The end of the positioning bolt close to the through hole passes through the through hole and is threadedly connected to the inner wall of the insertion hole.
[0010] Furthermore, a spring is fixedly connected to the top of the positioning block, and the top end of the spring is fixedly connected to the top side of the inner wall of the limiting groove.
[0011] Furthermore, each of the four corners of the top of the frame is fixedly connected to a second traction ring, and the second traction ring is connected to a connecting ring by a suspension rope. A connecting block is fixedly connected to the adjacent side of the two connecting rings, and a suspension ring is fixedly connected to the top of the connecting block.
[0012] Furthermore, the sliding assembly includes a sliding groove, which is formed at the rear end of the bottom side of the inner wall of the mounting groove. A slider is slidably connected to the inner wall of the sliding groove, and a toothed plate is fixedly connected to the top of the slider.
[0013] Furthermore, an electric push rod is fixedly connected to the front side of the slider, and the top of the electric push rod is fixedly connected to the bottom front end of the connecting rod.
[0014] Furthermore, the movable component includes a second slide groove, which is opened at the front and rear ends of the left and right sides of the frame. A second slider is slidably connected to the inner wall of the second slide groove, and the second slider is fixedly connected to the left and right sides of the inner wall of the left and right ends of the slide block.
[0015] Furthermore, the traction ring is fixedly connected to the top four corners of the wall panel.
[0016] This utility model has the following beneficial effects:
[0017] 1. This utility model realizes the wall panel installation rotation function, gradually transitioning from a horizontal state to a vertical direction. This process eliminates the need for construction personnel to perform complex and dangerous manual adjustments in a high-altitude environment, greatly reducing construction difficulty and safety risks, providing great convenience for subsequent wall panel installation work, and significantly improving construction efficiency and installation accuracy.
[0018] 2. This utility model improves the adaptability of wall panels of different sizes. Whether it is a large building exterior wall panel or a small interior partition wall panel, it can achieve efficient and precise hoisting, significantly improving the accuracy and convenience of hoisting operations, effectively reducing hoisting errors and time waste caused by size mismatch issues, and greatly improving the work efficiency and management level of the construction site. Attached Figure Description
[0019] Figure 1 A perspective view of the precast component hoisting auxiliary device for construction engineering proposed in this utility model;
[0020] Figure 2 A schematic diagram of the rotating rod structure of the auxiliary device for hoisting precast components in construction engineering proposed in this utility model;
[0021] Figure 3 This is a schematic diagram of the sliding component structure of the precast component hoisting auxiliary device for construction engineering proposed in this utility model.
[0022] Figure 4 A schematic diagram of the sliding block structure of the auxiliary device for hoisting precast components in construction engineering proposed in this utility model;
[0023] Figure 5 for Figure 4 Enlarged view of point A in the middle.
[0024] Legend:
[0025] 1. Frame; 2. Connecting rod one; 3. Connecting rod two; 4. Mounting groove one; 5. Mounting groove two; 6. Wire wheel; 7. Rotating rod; 8. Gear; 9. Sliding assembly; 10. Tooth plate; 11. Wire groove; 12. Movable assembly; 13. Slide seat; 14. Through groove; 15. Limiting wheel; 16. Traction rope one; 17. Hook one; 18. Traction ring one; 19. Wall panel; 20. Traction rope two; 21. Positioning groove; 22. Limiting groove; 23. Positioning block; 24. Through hole; 25. Insertion hole; 26. Spring; 27. Positioning bolt; 28. Traction ring two; 29. Lifting rope; 30. Connecting ring; 31. Connecting block; 32. Lifting ring; 901. Slide groove one; 902. Slider one; 903. Electric push rod; 1201. Slide groove two; 1202. Slider two. Detailed Implementation
[0026] 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.
[0027] Reference Figures 1-3 This utility model provides an embodiment of a precast component hoisting auxiliary device for construction engineering, comprising a frame 1: a connecting rod 2 is fixedly connected to the front side of the inner wall of the frame 1; the left and right sides of the outer wall of the connecting rod 2 are connected to the left and right sides of the frame 1 via connecting rods 3; the connecting rod 2 has an installation groove 4 inside; the connecting rod 3 has an installation groove 5 inside; the installation groove 4 and the installation groove 5 are connected; a sheave 6 is rotatably connected to the left and right sides of the inner wall of the installation groove 5; the adjacent sides of the sheave 6 are connected via a rotating rod 7; a gear 8 is fixedly connected to the middle of the outer side of the rotating rod 7; the installation groove 4 is connected via a sliding assembly 9. A toothed plate 10 is connected to a gear 8. A traction rope 16 is provided inside the reel 6. Wire grooves 11 are provided at both ends of the front bottom of the frame 1. The frame 1 is connected to a slide block 13 through a movable component 12. A through groove 14 is provided at the bottom of the front slide block 13. A limit wheel 15 is rotatably connected to the inner wall of the through groove 14. The traction rope 16 passes through the through groove 14 and is connected to the limit wheel 15. A traction rope 20 is provided at the bottom of the rear slide block 13. A hook 17 is installed at the bottom of both the traction rope 16 and the traction rope 20. The hook 17 is connected to a wall panel 19 through a traction ring 18.
[0028] Specifically, frame 1, as the core load-bearing structure, forms a solid and reliable frame foundation through connecting rod 2 fixedly connected to the front of the inner wall, and connecting rod 3 securely connecting the left and right sides of the outer wall of connecting rod 2 to the left and right sides of frame 1. This ensures the structural stability of the entire device during hoisting operations and allows it to withstand significant external forces without deformation or damage. Installation slots 4 and 5 are interconnected, providing a reasonable installation layout for key components such as the sheave 6, rotating rod 7, gear 8, and toothed plate 10. The sheave 6 is rotatably connected to the left and right sides of the inner wall of installation slot 5, and the adjacent sides are connected through rotating rod 7. When the toothed plate 10 moves under the drive of sliding component 9, the meshing connection between the toothed plate 10 and gear 8 causes gear 8 to rotate around rotating rod 7, thereby driving the sheave 6 to rotate synchronously, achieving precise winding and unwinding of the traction rope 16. The beneficial effect of this structural design is that the length of the traction rope 16 can be flexibly and precisely adjusted according to different construction needs, meeting the diverse requirements for the height of the front hook 17 during hoisting. For example, when hoisting prefabricated components at higher positions, the sliding component 9 can be controlled to cause the toothed plate 10 to drive the gear 8 and the reel 6 to rotate, releasing more of the traction rope 16. Specifically, after horizontally hoisting the wall panel 19 to the installation location, the front retractable traction rope 16 can be lowered, while the rear traction rope 20 remains stationary. This allows the hoisted wall panel 19 to smoothly rotate from the horizontal to the vertical direction, greatly facilitating subsequent installation operations and effectively improving construction efficiency and installation accuracy. When it is necessary to raise the hook height, the operation is reversed. The grooves 11 on the left and right ends of the front side of the bottom of the frame 1 not only provide good guidance for the traction rope 16, preventing it from tangling or deviating during movement and ensuring the smoothness and stability of the traction rope 16's movement, but also effectively protect the traction rope 16 and extend its service life. The frame 1 is connected to the slide block 13 through the movable component 12, allowing the slide block 13 to move flexibly back and forth along the frame 1.
[0029] In actual hoisting operations, when faced with precast wall panels 19 of different sizes, workers can easily adjust the position of the slide block 13 according to the specific location of the wall panel 19, and then adjust the front and rear position of the hook 17 to achieve precise positioning of the hoisting point of the wall panel 19, greatly improving the accuracy and efficiency of the hoisting operation. The through groove 14 at the bottom of the front slide block 13 and the limiting wheel 15 rotatably connected to the inner wall of the through groove 14 allow the traction rope 16 to pass through the through groove 14 and connect to the limiting wheel 15. The limiting wheel 15 effectively guides the direction of the traction rope 16, while reducing the friction of the traction rope 16 during movement, making the release and retraction of the traction rope 16 smoother, and to a certain extent preventing damage to the traction rope 16 due to friction, thus improving the reliability and service life of the traction rope 16. The second traction rope 20 at the bottom of the rear slide block 13 works in conjunction with the first traction rope 16 at the front end. The height difference between the two hooks 17 can be flexibly adjusted according to actual working conditions to meet the adjustment requirements of different tilt angles of the wall panel 19. For example, when hoisting wall panels requiring specific tilt angles, the precise control of the lengths of the first traction rope 16 and the second traction rope 20 allows for accurate posture adjustment of the wall panel 19 during hoisting, greatly facilitating subsequent installation work. Simultaneously, the frame 1 and the slide block 13 are connected by a movable component 12. The second slider 1202 slides within the second slide groove 1201, allowing the slide block 13 to move flexibly back and forth on the frame 1, facilitating adjustment of the front and rear positions of the hooks 17. Combined with the adjustable structure, it can well adapt to wall panels 19 of different sizes. Whether it's a large or small wall panel, the position of the slide block 13 can be adjusted to precisely align the hoisting point of the wall panel 19, improving the accuracy and convenience of hoisting.
[0030] Reference Figure 1 , Figure 3 and Figure 4The frame 1 has positioning grooves 21 on the front and rear ends of the top left and right sides. The slide 13 has limit grooves 22 on the left and right ends of the bottom. Positioning blocks 23 are slidably connected to the inner walls of the limit grooves 22. The positioning blocks 23 have through holes 24 on the left and right sides. The limit grooves 22 have insertion holes 25 on the left and right sides of the inner walls. Positioning bolts 27 are detachably connected to the inner walls of the through holes 24. The end of the positioning bolt 27 passes through the through hole 24 and is threaded to the inner wall of the insertion hole 25. A spring 26 is fixedly connected to the top of the positioning block 23. The top of the spring 26 is fixedly connected to the top side of the inner wall of the limit groove 22. The four corners of the top of the frame 1 are fixedly connected to traction rings 28. The traction rings 28 are connected to connecting rings 30 by ropes 29. Connecting blocks 31 are fixedly connected to the adjacent sides of the connecting rings 30 at both ends. The top of the connecting block 31 is fixedly connected to a lifting ring 32. The sliding component 9 includes a slide groove 901, which is opened at the rear end of the bottom side of the inner wall of the mounting groove 4. A slider 902 is slidably connected to the inner wall of the slide groove 901. A toothed plate 10 is fixedly connected to the top of the slider 902. An electric push rod 903 is fixedly connected to the front side of the slider 902. The top of the electric push rod 903 is fixedly connected to the bottom front end of the connecting rod 2. The movable component 12 includes a slide groove 1201, which is opened at the front and rear ends of the left and right sides of the frame 1. A slider 1202 is slidably connected to the inner wall of the slide groove 1201. The slider 1202 is fixedly connected to the left and right sides of the inner wall of the left and right ends of the slide block 13. A traction ring 18 is fixedly connected to the top four corners of the wall panel 19.
[0031] Specifically, positioning grooves 21 are provided at the front and rear ends of the left and right sides of the top of the frame 1, and limiting grooves 22 are provided at the left and right ends of the bottom of the slide block 13. Positioning blocks 23 are slidably connected to the inner walls of the limiting grooves 22. A spring 26 is fixedly connected to the top of the positioning block 23, and its top end is fixed to the top side of the inner wall of the limiting groove 22, so that the positioning block 23 partially extends out of the limiting groove 22 when no external force is applied. Through holes 24 are provided on the left and right sides of the positioning block 23, and insertion holes 25 are provided on the left and right sides of the inner wall of the limiting groove 22. Positioning bolts 27 pass through the through holes 24 and are threaded to the inner walls of the insertion holes 25, so that the positioning blocks 23 can be firmly fixed. After the workers adjust the position of the slide block 13 on the frame 1 according to the size of the wall panel 19 and the hoisting requirements, the positioning blocks 23 automatically align and partially embed into the positioning grooves 21 under the action of the spring 26. Then, the positioning bolts 27 are tightened, which can effectively prevent the slide block 13 from accidentally sliding during the hoisting process, greatly ensuring the safety and stability of the hoisting operation.
[0032] Regarding the connection with external hoisting equipment, each of the four top corners of the frame 1 is fixedly connected to a traction ring 28. The traction ring 28 is connected to a connecting ring 30 via a hoisting rope 29. A connecting block 31 is fixedly connected to the adjacent side of each connecting ring 30, and a hoisting ring 32 is fixedly connected to the top of the connecting block 31. This connection structure is rationally designed, allowing the entire device to be easily and stably connected to external hoisting equipment. During hoisting, force is evenly transmitted through the traction ring 28, hoisting rope 29, connecting ring 30, and connecting block 31 to the hoisting ring 32, ensuring balanced force distribution throughout the hoisting auxiliary device and further improving the stability of the device during operation. Meanwhile, the traction ring 18 fixedly connected to the four top corners of the wall panel 19 is used to connect to the hook 17, ensuring even force distribution on the wall panel 19 during hoisting and preventing damage or instability due to uneven force distribution, thus greatly improving the safety and stability of the hoisting operation.
[0033] Working principle: During operation, firstly, based on the position, size, and hoisting requirements of the precast wall panel 19, the electric push rod 903 is activated, pushing the slider 902 to slide within the groove 901, causing the toothed plate 10 to move, rotating the gear 8 and driving the reel 6, precisely adjusting the length of the traction rope 16 so that the front hook 17 reaches the appropriate height; simultaneously, by using the slider 1202 to slide within the groove 1201, the front and rear positions of the slide block 13 are flexibly adjusted so that the hook 17 is aligned with the traction rings 18 at the four corners of the top of the wall panel 19 and securely connected; Then, the positioning block 23 is embedded into the positioning groove 21 under the action of the spring 26, and then fixed with the positioning bolt 27 to lock the position of the slide 13. Finally, the external hoisting equipment and the wall panel 19 are connected through the traction ring 28, the hoisting rope 29, the connecting ring 30, the connecting block 31 and the hoisting ring 32 at the four corners of the top of the frame 1. During the hoisting process, the sliding component 9 and the movable component 12 can be finely adjusted again as needed to precisely control the length of the traction rope 16 and the traction rope 20 and the position of the slide 13, so as to ensure that the posture of the wall panel 19 meets the construction requirements and complete the precise hoisting operation.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An auxiliary device for hoisting precast components in construction projects, characterized in that, The frame (1) includes a frame body (1): a connecting rod (2) is fixedly connected to the front side of the inner wall of the frame body (1). The left and right sides of the outer wall of the connecting rod (2) are connected to the left and right sides of the frame body (1) through a connecting rod (3). The connecting rod (2) has an installation groove (4) inside. The connecting rod (3) has an installation groove (5) inside. The installation groove (4) and the installation groove (5) are connected. The left and right sides of the inner wall of the installation groove (5) are rotatably connected to a spool (6). The spool (6) is connected to the side of the spool (6) with a rotating rod (7). A gear (8) is fixedly connected to the middle of the outer side of the rotating rod (7). The installation groove (4) is connected to a toothed plate (10) through a sliding component (9). The toothed plate (10) and the gear (8) are connected to each other. The two sides of the frame (1) are connected by meshing. The inner side of the reel (6) is provided with a traction rope (16). The left and right ends of the bottom front side of the frame (1) are provided with wire grooves (11). The frame (1) is connected to a slide (13) through a movable component (12). The bottom of the slide (13) at the front end is provided with a through groove (14). The inner wall of the through groove (14) is rotatably connected to a limit wheel (15). The traction rope (16) passes through the through groove (14) and is connected to the limit wheel (15). The bottom of the slide (13) at the rear end is provided with a traction rope (20). The bottom ends of the traction rope (16) and the traction rope (20) are both equipped with hooks (17). The hooks (17) are connected to a wall panel (19) through a traction ring (18).
2. The precast component hoisting auxiliary device for construction engineering as described in claim 1, characterized in that: The frame (1) has positioning grooves (21) on the front and rear ends of the top left and right sides. The slide (13) has limiting grooves (22) on the bottom left and right ends. The inner wall of the limiting groove (22) is slidably connected to a positioning block (23). The positioning block (23) has through holes (24) on the left and right sides. The inner wall of the limiting groove (22) has insertion holes (25) on the left and right sides. The inner wall of the through hole (24) is detachably connected to a positioning bolt (27). The end of the positioning bolt (27) passes through the through hole (24) and is threaded to the inner wall of the insertion hole (25).
3. The precast component hoisting auxiliary device for construction engineering according to claim 2, characterized in that: A spring (26) is fixedly connected to the top of the positioning block (23), and the top of the spring (26) is fixedly connected to the top side of the inner wall of the limiting groove (22).
4. The precast component hoisting auxiliary device for construction engineering as described in claim 1, characterized in that: The frame (1) has a traction ring two (28) fixedly connected to each of the four corners of the top. The traction ring two (28) is connected to a connecting ring (30) by a hanging rope (29). A connecting block (31) is fixedly connected to the side of the connecting ring (30) at both ends. A hanging ring (32) is fixedly connected to the top of the connecting block (31).
5. The precast component hoisting auxiliary device for construction engineering according to claim 1, characterized in that: The sliding assembly (9) includes a slide groove (901), which is located at the rear end of the bottom side of the inner wall of the mounting groove (4). A slider (902) is slidably connected to the inner wall of the slide groove (901), and a toothed plate (10) is fixedly connected to the top of the slider (902).
6. The precast component hoisting auxiliary device for construction engineering as described in claim 5, characterized in that: An electric push rod (903) is fixedly connected to the front side of the slider (902), and the top of the electric push rod (903) is fixedly connected to the bottom front end of the connecting rod (2).
7. The precast component hoisting auxiliary device for construction engineering according to claim 1, characterized in that: The active component (12) includes a second slide groove (1201), which is opened on the front and rear ends of the left and right sides of the frame (1). A second slider (1202) is slidably connected to the inner wall of the second slide groove (1201), and the second slider (1202) is fixedly connected to the left and right sides of the inner wall of the left and right ends of the slide block (13).
8. The precast component hoisting auxiliary device for construction engineering according to claim 1, characterized in that: The traction ring (18) is fixedly connected to the top four corners of the wall panel (19).