A prefabricated building component hoisting and positioning clamp
By designing an innovative structure for the crossbeam and clamping components, and using servo motors and counterweights to adjust the center of gravity, the stability and adaptability issues of traditional lifting clamps in the lifting of large components have been solved, achieving efficient and safe lifting and positioning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 费县房屋征收服务中心
- Filing Date
- 2025-08-26
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional lifting clamps are difficult to effectively counteract swaying and eccentric loads when lifting large, asymmetrical, or irregularly shaped components, leading to overturning accidents. They have poor stability, are not adaptable to components of different sizes and shapes, have low positioning accuracy, and are complicated to operate.
The fixture design includes a crossbeam, lifting ring, anti-tilt assembly, and clamping assembly. The center of gravity is adjusted by a servo motor-driven screw, and the counterweight is balanced. Combined with the adjustable clamping assembly, dynamic center of gravity adjustment and multi-directional stability enhancement are achieved.
It improves the safety and stability of the hoisting process, enhances the adaptability to components of different sizes, ensures positioning accuracy and ease of operation, and improves construction efficiency and quality.
Smart Images
Figure CN224411205U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hoisting and positioning technology, and in particular to a hoisting and positioning fixture for prefabricated building components. Background Technology
[0002] In the use of prefabricated buildings, precise positioning and safety assurance during component hoisting are crucial. Traditional hoisting clamps generally lack a center of gravity adjustment mechanism. When faced with large, asymmetrical, or irregularly shaped components, they are unable to effectively counteract the swaying and eccentric loads during hoisting, which can easily lead to overturning accidents of the components or the clamps themselves, resulting in poor stability and significant safety hazards. At the same time, most clamps have a fixed and simple clamping structure, which is not adaptable to components of different sizes and shapes and lacks versatility. Their counterweight design is also mostly static and fixed, and cannot dynamically optimize the center of gravity position according to the weight distribution of the components and hoisting conditions, affecting positioning accuracy and increasing operational complexity. In addition, existing clamps have limited means to improve the lateral stability and anti-overturning ability of components, making it difficult to reliably cope with complex and ever-changing actual hoisting environments. Summary of the Invention
[0003] To overcome the technical defects of the existing technology, this utility model provides a hoisting and positioning fixture for prefabricated building components, which has the advantages of simple structure, convenient operation, accurate positioning and strong stability.
[0004] The technical solution adopted by this utility model is as follows: it includes a crossbeam and a lifting ring for connecting the lifting rope. The lifting ring is fixed to the top of the crossbeam. The top and bottom of the crossbeam are respectively provided with an installation groove and a first limiting slide groove. An anti-tilting component is fixedly installed inside the installation groove. A telescopic part is fixedly installed on one side inside the first limiting slide groove. A movable block that slides and engages inside the first limiting slide groove is fixed at the other end of the telescopic part. A clamping component for clamping building components is fixedly installed at the bottom of the movable block.
[0005] Preferably, in order to enhance the anti-tipping performance of the positioning clamp and ensure that it will not tip over or sway during hoisting, the anti-tilting component includes a slider with an opening at the top and a plug with grooves on both sides. The slider is disposed inside the mounting groove, the plug is inserted into the top of the slider, and a counterweight is fixed to the top of the plug.
[0006] Preferably, in order to achieve flexible adjustment of the slider's position inside the mounting slot and balanced distribution of the counterweight, a servo motor for driving is fixedly installed on one side of the crossbeam. A screw is installed at the output end of the servo motor, and the other end of the screw passes through the crossbeam and is rotatably installed inside the mounting slot. The screw is threadedly connected to the slider, and a fixing slot is provided inside the slider.
[0007] Preferably, in order to quickly assemble and disassemble the insert block and the counterweight block, a second limiting groove is provided on the outer side of the slider, a side plate is slidably engaged inside the second limiting groove, a limiting plate is provided inside the fixing groove, the limiting plate is engaged inside the groove, a connecting rope is fixed to the rear side of the limiting plate, and the other end of the connecting rope passes through the slider and is fixed to one side of the side plate.
[0008] Preferably, in order to improve the stability of the limiting plate being engaged inside the groove, a first spring is fixedly connected between the fixing groove and the limiting plate.
[0009] Preferably, in order to enhance the clamping force of the clamping assembly on the building components and to adapt to the clamping of building components of different sizes, the clamping assembly includes a fixed frame with a T-shaped groove inside and an L-shaped support plate. The top of the fixed frame is fixedly installed on the bottom of the moving block, one end of the L-shaped support plate is disposed inside the T-shaped groove, and a second spring is fixedly connected between the bottom of the L-shaped support plate and the inner wall of the bottom of the fixed frame.
[0010] Preferably, in order to improve the stability of building components during hoisting, an extension plate is provided inside the T-slot.
[0011] Preferably, in order to move the extension plate inside the T-slot, a connector is installed between the L-shaped support plate and the extension plate.
[0012] The beneficial effects of this utility model are as follows: the anti-tilting component at the top of the crossbeam can dynamically adjust the center of gravity of the positioning fixture, preventing the building components or fixture from tipping over during hoisting, thus enhancing safety and stability. It also achieves a balanced distribution of the counterweight weight, further improving the accuracy of hoisting positioning. This allows for convenient adjustment of the layout of the anti-tilting component to meet the needs of different hoisting scenarios. At the same time, the clamping component not only enhances the clamping force on the building components but also enables adaptive clamping of building components of different sizes, improving the versatility and practicality of the fixture. Furthermore, the extension plate and connecting parts inside the T-slot further enhance the stability of the building components during hoisting, ensuring a safe and smooth hoisting process and strong practicality. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a bottom view of the overall structure of this utility model;
[0015] Figure 3 This is a schematic diagram showing the connection between the clamping assembly, the telescopic part, and the slider of this utility model;
[0016] Figure 4This is a schematic diagram showing the disassembled structure of the anti-tilt component of this utility model;
[0017] Figure 5 This is a cross-sectional view of the clamping component structure of this utility model.
[0018] Explanation of reference numerals in the attached drawings: 1. Crossbeam; 2. Mounting groove; 3. Anti-tilt assembly; 301. Servo motor; 302. Screw; 303. Slider; 304. Insert block; 305. Counterweight block; 306. Fixing groove; 307. Second limiting slide groove; 308. Side plate; 309. Connecting rope; 310. Limiting plate; 311. First spring; 4. Lifting ring; 5. Clamping assembly; 501. Fixing frame; 502. L-shaped support plate; 503. Second spring; 504. Extension plate; 505. Connector; 6. First limiting slide groove; 7. Telescopic part; 8. Moving block. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings:
[0020] like Figures 1-5 As shown, this embodiment provides a hoisting and positioning fixture for prefabricated building components, including a crossbeam 1 and a lifting ring 4 for connecting a hoisting rope. The lifting ring 4 is fixed to the top of the crossbeam 1. The top and bottom of the crossbeam 1 are respectively provided with an installation groove 2 and a first limiting slide groove 6. An anti-tilting component 3 is fixedly installed inside the installation groove 2. A telescopic part 7 is fixedly installed on one side inside the first limiting slide groove 6. A movable block 8 that slides and engages inside the first limiting slide groove 6 is fixed at the other end of the telescopic part 7, which facilitates the clamping and fixing of building components of different lengths and sizes. A clamping component 5 for clamping building components is fixedly installed at the bottom of the movable block 8.
[0021] In practical use, the anti-tilting component 3 is assembled and adjusted manually according to the building components to be hoisted, adapting to different hoisting scenarios and ensuring the safety and stability of the hoisting process. After assembly, the operator connects the hoisting rope to the hoisting ring 4 and aligns the clamping component 5 with the building component to be hoisted. Then, the telescopic part 7 is activated, causing the moving block 8 to slide within the first limiting groove 6, thereby driving the clamping component 5 to approach and clamp the building component. During the hoisting process, the anti-tilting component 3 effectively prevents the building component or clamp from tilting by dynamically adjusting the center of gravity, enhancing the overall safety and stability. This clamp has a simple structure, is easy to operate, has accurate positioning, and strong stability. It is widely used in the hoisting and positioning process of prefabricated building components, effectively improving construction efficiency and quality.
[0022] As a technical optimization solution of this utility model, specifically as follows: Figure 4As shown, the anti-tilt assembly 3 includes a slider 303 with an opening at the top and an insert block 304 with grooves on both sides. The slider 303 is disposed inside the mounting groove 2, and the insert block 304 is inserted into the top of the slider 303. A counterweight block 305 is fixed to the top of the insert block 304, which improves the stability of the positioning fixture during the hoisting of building components. A servo motor 301 for driving is fixedly installed on one side of the crossbeam 1. A screw 302 is installed at the output end of the servo motor 301, and the other end of the screw 302 passes through the crossbeam 1 and is rotatably installed inside the mounting groove 2. 02 is threadedly connected to slider 303. Slider 303 has a fixing groove 306 inside. A second limiting groove 307 is provided on one side of the outside of slider 303. A side plate 308 is slidably engaged inside the second limiting groove 307. A limiting plate 310 is provided inside the fixing groove 306. The limiting plate 310 is engaged inside the groove. A connecting rope 309 is fixed to the rear side of the limiting plate 310. The other end of the connecting rope 309 passes through slider 303 and is fixed to one side of side plate 308. A first spring 311 is fixedly connected between fixing groove 306 and limiting plate 310.
[0023] In use, the operator can press down on the side plate 308 to move it inside the second limiting groove 307, which in turn moves the connecting rope 309. When the connecting rope 309 moves, it pulls the limiting plate 310, causing the limiting plate 310 to disengage from the grooves on both sides of the insert block 304 under the elastic force of the first spring 311. This allows the insert block 304 and the counterweight block 305 to be quickly removed. When the limiting plate 310 is inserted into the groove, the insert block 304 and the counterweight block 305 can be fixed, realizing the quick disassembly and balancing of the weight of the counterweight block 305 and improving the convenience of operation. At the same time, the servo motor 301 can drive the screw 302 to rotate. When the screw 302 rotates, it is threadedly connected to the slider 303, which can push the slider 303 to slide inside the mounting groove 2 instead of rotating. This facilitates the adjustment of the position of the counterweight block 305, realizing the rapid adjustment of the layout of the anti-tilt component 3 to adapt to the needs of different hoisting scenarios and further improving the accuracy and stability of hoisting positioning.
[0024] As a technical optimization solution of this utility model, specifically as follows: Figure 5 As shown, the clamping assembly 5 includes a fixed frame 501 with a T-shaped groove inside and an L-shaped support plate 502. The top of the fixed frame 501 is fixedly installed on the bottom of the movable block 8. One end of the L-shaped support plate 502 is located inside the T-shaped groove. A second spring 503 is fixedly connected between the bottom of the L-shaped support plate 502 and the inner wall of the bottom of the fixed frame 501. An extension plate 504 is provided inside the T-shaped groove. A connector 505 is installed between the L-shaped support plate 502 and the extension plate 504, so that the L-shaped support plate 502 and the extension plate 504 can move synchronously.
[0025] In use, the building component to be hoisted is placed on top of the L-shaped support plate 502. The L-shaped support plate 502 is compressed and moves downward, pressing against the second spring 503. Under the action of the connecting piece 505, the L-shaped support plate 502 moves downward while the extension plate 504 moves outward, thereby increasing the contact area between the clamping assembly 5 and the building component and improving the stability of the clamping. At the same time, under the elastic force of the second spring 503, the clamping force on the building component can be enhanced, improving the stability and reliability of the clamping. Furthermore, the T-slot and the extension plate 504 increase the flexibility of the clamping assembly 5, further improving the versatility and practicality of the clamp, and ensuring the stability and safety of the building component during hoisting.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.
Claims
1. A prefabricated building component hoisting positioning clamp, comprising a crossbeam (1) and a lifting ring (4) for connecting a lifting rope, the lifting ring (4) being fixed on the top of the crossbeam (1), characterized in that: The top and bottom of the crossbeam (1) are respectively provided with an installation groove (2) and a first limiting slide groove (6). An anti-tilting component (3) is fixedly installed inside the installation groove (2). A telescopic part (7) is fixedly installed on one side inside the first limiting slide groove (6). A moving block (8) that is slidably engaged inside the first limiting slide groove (6) is fixed at the other end of the telescopic part (7). A clamping component (5) for clamping building components is fixedly installed at the bottom of the moving block (8).
2. The hoisting and positioning fixture for prefabricated building components according to claim 1, characterized in that: The anti-tilt assembly (3) includes a slider (303) with an opening at the top and a plug (304) with grooves on both sides. The slider (303) is disposed inside the mounting groove (2), and the plug (304) is inserted into the top of the slider (303). A counterweight (305) is fixed to the top of the plug (304).
3. The hoisting and positioning fixture for prefabricated building components according to claim 2, characterized in that: A servo motor (301) for driving is fixedly installed on one side of the crossbeam (1). A screw (302) is installed at the output end of the servo motor (301). The other end of the screw (302) passes through the crossbeam (1) and is rotatably installed inside the mounting groove (2). The screw (302) is threadedly connected to the slider (303). A fixing groove (306) is opened inside the slider (303).
4. The hoisting and positioning fixture for prefabricated building components according to claim 3, characterized in that: A second limiting groove (307) is provided on one side of the slider (303). A side plate (308) is slidably engaged inside the second limiting groove (307). A limiting plate (310) is provided inside the fixing groove (306). The limiting plate (310) is engaged inside the groove. A connecting rope (309) is fixed to the rear side of the limiting plate (310). The other end of the connecting rope (309) passes through the slider (303) and is fixed to one side of the side plate (308).
5. A hoisting and positioning fixture for prefabricated building components according to claim 4, characterized in that: A first spring (311) is fixedly connected between the fixing groove (306) and the limiting plate (310).
6. The hoisting and positioning fixture for prefabricated building components according to claim 1, characterized in that: The clamping assembly (5) includes a fixing frame (501) with a T-shaped groove inside and an L-shaped support plate (502). The top of the fixing frame (501) is fixedly installed on the bottom of the moving block (8). One end of the L-shaped support plate (502) is located inside the T-shaped groove. A second spring (503) is fixedly connected between the bottom of the L-shaped support plate (502) and the inner wall of the bottom of the fixing frame (501).
7. A hoisting and positioning fixture for prefabricated building components according to claim 6, characterized in that: An extension plate (504) is provided inside the T-shaped groove.
8. A hoisting and positioning fixture for prefabricated building components according to claim 7, characterized in that: A connector (505) is installed between the L-shaped support plate (502) and the extension plate (504).