Modularized building prefabricated part positioning and hoisting device

Abstract

The utility model discloses a modular building prefabricated part positioning and hoisting device which comprises a base and traction ropes arranged at the two ends of the base, and four positioning devices are arranged on the base in a sliding mode. The positioning device comprises a first clamping groove matched with the thickness of the base and a second clamping groove matched with the thickness of the prefabricated part, the first clamping groove is connected with the waist groove of the base through a locking bolt to achieve sliding positioning in the length direction, and the second clamping groove is fixed in the width direction by adjusting the relative distance between the second clamping groove and the prefabricated part through a positioning bolt. And through a bidirectional positioning structure, the hoisting requirements of prefabricated parts of different specifications can be rapidly met, and the problems that a traditional device is insufficient in positioning precision, limited in applicability and tedious in operation are solved. The device has the advantages of being convenient to adjust, reliable in positioning, stable in structure and the like, obviously improves the hoisting efficiency and safety of the modular building prefabricated parts, and is suitable for industrial construction scenes.

Description

Technical Field

[0001] This article relates to a modular prefabricated building component positioning and hoisting device. Background Technology

[0002] In the field of modular construction, the efficiency and precision of prefabricated component hoisting operations directly affect project progress and quality. Most existing devices employ fixed slots or single-directional positioning designs, making it difficult to effectively constrain the length and width of prefabricated components simultaneously. During actual hoisting, components are prone to shifting or tilting, often requiring repeated lifting and adjustments to complete installation.

[0003] Furthermore, modular buildings involve a variety of prefabricated components such as wall panels, floor slabs, and stairs, with significant differences in size. Traditional fixed-structure hoisting equipment is difficult to accommodate components of multiple specifications, requiring frequent equipment changes during projects.

[0004] The industry currently has an increasingly urgent need for standardized and efficient hoisting equipment. However, existing adjustable devices generally suffer from problems such as narrow adjustment range and poor structural stability, making it difficult to meet the requirements of industrialized construction. Therefore, developing a new type of hoisting device that can flexibly adapt to components of various specifications, is easy to operate, and has reliable positioning has become a key technological breakthrough for improving the construction efficiency of modular buildings. Utility Model Content

[0005] This utility model aims to provide a modular prefabricated building component positioning and hoisting device, which effectively solves the problems of poor adjustability and poor positioning effect in existing structures. The specific solution is as follows:

[0006] A modular prefabricated building component positioning and hoisting device includes a traction rope and a base, wherein the traction rope is located at both ends of the base; the length of the base is greater than the maximum length of the prefabricated component to be hoisted, and the width of the base is less than the minimum width of the prefabricated component to be hoisted.

[0007] The base is equipped with four positioning devices, which can slide along the length of the base. The positioning devices are provided with through holes, and the base is provided with waist grooves. The locking bolts pass through the through holes and waist grooves and are connected to the locking nuts. When the side of the positioning device abuts against the side of the prefabricated component to be hoisted, the locking bolts and locking nuts are tightened.

[0008] To better secure the precast components to be hoisted, the positioning device includes a first slot and a second slot. The engagement height of the first slot matches the thickness of the base, and the upper end of the second slot is provided with an upper spring block. The engagement height of the second slot matches the thickness of the precast component to be hoisted. The first slot allows the positioning device to slide effectively on the base, and the second slot allows for effective fixation of the precast component to be hoisted.

[0009] The first slot is designed with a locking height that matches the thickness of the base. It has an upper locking block at the top and a lower locking block at the bottom, both with through holes for the locking bolt to pass through. Through these through holes, the locking bolt can pass through the base's groove and engage with the locking nut, allowing the positioning device to slide and adjust along the length of the base, while also enabling quick locking and fixing after positioning.

[0010] The second slot has an adaptive function: its clamping height is adapted to the thickness of the prefabricated component to be hoisted. The upper end is equipped with a metal upper spring block with several weight-reducing grooves on its surface. Through its own elastic deformation, it can adaptively conform to the surface of components of different thicknesses. The lower end is an L-shaped fixing block, whose rear end is connected to the positioning device body via two positioning bolts. Rotating the positioning bolts drives the fixing block to move back and forth, precisely adjusting the distance between the second slot and the side of the component to achieve clamping in the width direction.

[0011] Meanwhile, in order to quickly fix the positioning device to the base, the upper end of the first slot is an upper locking block and the lower end is a lower locking block. The surfaces of the upper and lower locking blocks are provided with through holes for the locking bolts to pass through.

[0012] To accommodate precast components of varying thicknesses, the upper end of the second slot is a spring block made of metal, with several weight-reducing grooves on its surface. The spring block can adapt to precast components of different thicknesses through elastic deformation.

[0013] The lower end of the second slot is an L-shaped fixing block. The rear end of the fixing block is connected to the body of the positioning device through a positioning bolt. The positioning bolt can rotate back and forth, thereby changing the relative distance between the second slot and the prefabricated component to be hoisted.

[0014] To maintain a secure hold, when the side of the positioning device abuts against the side of the precast component to be hoisted, the sides of both the upper and lower locking blocks abut against the side of the precast component to be hoisted.

[0015] When the positioning device slides to the side to abut against the component, the upper and lower locking blocks simultaneously press against the side of the component, forming a length-direction limit. Simultaneously, the upper elastic block provides elastic contact, and the L-shaped fixing block provides surface contact, jointly constraining the width of the component. Each positioning device contains two positioning bolts and two locking bolts. This double-bolt structure enhances connection strength and anti-overturning capability, ensuring reliable fixation of the positioning device to the component during hoisting. Beneficial effects

[0016] The base features a sliding positioning device along its length and a second adjustable slot structure along its width, enabling complete constraint on the length and width of the prefabricated components. This allows for control of displacement errors during hoisting within ±2mm and significantly reduces subsequent splicing and adjustment procedures.

[0017] Meanwhile, the base is designed to be longer than the maximum length of similar precast components (generally it can cover 3-12 meter specifications) and narrower than the minimum width (generally it can accommodate components with a width of 1.5 meters or less). Combined with the positioning device that allows for full-stroke sliding adjustment along the length of the base, it can be compatible with more than 90% of conventional modular building components. Attached Figure Description

[0018] Figure 1 This is a hoisting diagram of a modular prefabricated building component positioning and hoisting device.

[0019] Figure 2 This is a schematic diagram showing the installation between the prefabricated component to be hoisted and the base;

[0020] Figure 3 This is a schematic diagram of a positioning device. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of a positioning device. Figure 2 ;

[0022] Figure 5 This is a schematic diagram of a positioning device. Figure 3 ;

[0023] In the diagram: 1. Traction rope, 2. Base, 21. Waist groove, 3. Precast component to be hoisted, 4. Positioning device, 41. First slot, 42. Second slot, 43. Positioning bolt, 44. Upper locking block, 45. Lower locking block, 46. Upper spring block. Detailed Implementation

[0024] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0025] Example 1: Used for hoisting prefabricated components with a length of 8-12 meters, a width of 2.5-3 meters, and a thickness of 0.6 meters.

[0026] A modular prefabricated building component positioning and hoisting device includes a base 2 and traction ropes 1 located at both ends of the base 2 along its length. The length of the base 2 is greater than the maximum length of the prefabricated component 3 to be hoisted, and the width is less than the minimum width of the prefabricated component 3 to be hoisted. Four positioning devices 4 are slidably arranged on the base 2 along its length. A groove 21 is formed on the surface of the base 2, and the positioning devices 4 are connected to the base 2 by locking bolts passing through the groove 21.

[0027] The locking height of the first slot 41 is adapted to the thickness of the base 2. Its upper end is the upper locking block 44 and its lower end is the lower locking block 45. The surfaces of the upper locking block 44 and the lower locking block 45 are provided with through holes for the locking bolts to pass through. The locking bolts are used to fix the device 4 to the base 2, thereby realizing the sliding adjustment and locking of the positioning device 4 along the length of the base 2.

[0028] The clamping height of the second slot 42 is adapted to the thickness of the precast component 3 to be hoisted. Its upper end is a metal upper spring block 46, the surface of which is provided with several weight-reducing grooves; the lower end is an L-shaped fixing block, which is connected to the positioning device 4 body by two positioning bolts 43. Rotating the positioning bolts 43 can push the L-shaped fixing block to move back and forth, adjusting the relative distance between the second slot 42 and the side of the precast component 3 to be hoisted, so as to achieve adaptive clamping in the width direction.

[0029] When the positioning device 4 slides to the side and abuts against the precast component 3 to be hoisted, the sides of the upper locking block 44 and the lower locking block 45 abut against the upper and lower surfaces of the component 3 respectively. At the same time, the upper spring block 46 of the second locking groove 42 elastically abuts against the upper surface of the component 3, and the L-shaped fixing block fits against the side of the component 3. Through the double fixing mechanism of double locking bolts and double positioning bolts 43, a two-way limit is formed on the length and width of the component 3.

[0030] Installation steps

[0031] S1. Base positioning and component placement

[0032] The base is then smoothly hoisted to the ground work area using lifting equipment, ensuring that the base surface is level. The prefabricated component to be hoisted is then gently placed on top of the base, and its position is roughly adjusted visually to ensure its center is roughly aligned with the center of the base (allowing for a deviation of ±10cm), providing a basis for subsequent precise adjustments.

[0033] S2. Preliminary hoisting and leveling

[0034] Start the hoisting equipment and simultaneously lift the component and base to a height of 40-50cm off the ground, then pause. Observe whether the base tilts. If it shifts, slide the positioning device along the length of the base, and adjust it to be completely level through the force feedback of the traction rope. During this process, the precast component will automatically center itself as the positioning device slides until the base is level.

[0035] S3, Length direction positioning and fixing

[0036] After confirming that the base is level, use a wrench to tighten the locking bolts of the positioning device, and fix the positioning device to the base through the fit between the groove and the through hole. At this time, the side of the positioning device is tightly against the side of the precast component, and the sides of the upper and lower clamping blocks simultaneously press against the component, forming a two-way limit in the length direction, ensuring that the component has no longitudinal displacement during hoisting.

[0037] S4, Width Direction Adaptive Adjustment

[0038] To address thickness variations in prefabricated components, rotating the positioning bolt clockwise pushes the L-shaped fixing block forward, gradually embedding the second slot into the side of the component; rotating it counterclockwise releases the slot. After adjusting until the slot is fully flush with the component surface, secure the slot position with double positioning bolts to achieve precise locking in the width direction. The clamping force can be judged by observing the degree of compression deformation of the upper spring block (it is recommended to allow for 2-3mm of compression) to ensure reliable fixing without damaging the component surface.

[0039] S5. Safety Confirmation Before Lifting

[0040] Double-check the tightness of all locking and positioning bolts, ensuring that the upper and lower locking blocks and the second locking groove are in tight contact with the component without gaps. After completing bidirectional positioning, the formal hoisting operation can begin. The entire installation and commissioning process takes approximately 15-20 minutes, which is more than 50% more efficient than traditional devices.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A modular prefabricated building component positioning and hoisting device, characterized in that, It includes a traction rope and a base, with the traction rope located at both ends of the base; the length of the base is greater than the maximum length of the prefabricated component to be hoisted, and the width of the base is less than the minimum width of the prefabricated component to be hoisted. The base is equipped with four positioning devices, which can slide along the length of the base. The positioning devices are provided with through holes, and the base is provided with waist grooves. The locking bolts pass through the through holes and waist grooves and are connected to the locking nuts. When the side of the positioning device abuts against the side of the prefabricated component to be hoisted, the locking bolts and locking nuts are tightened.

2. The modular prefabricated building component positioning and hoisting device according to claim 1, characterized in that... The positioning device includes a first slot and a second slot. The engagement height of the first slot matches the thickness of the base. The upper end of the second slot is provided with an upper spring block. The engagement height of the second slot matches the thickness of the prefabricated component to be hoisted.

3. A modular prefabricated building component positioning and hoisting device according to claim 2, characterized in that... The upper end of the first slot is an upper locking block, and the lower end is a lower locking block. The surfaces of both the upper and lower locking blocks are provided with through holes for the locking bolts to pass through.

4. A modular prefabricated building component positioning and hoisting device according to claim 3, characterized in that... The upper end of the second slot is an upper spring block, and the lower end is an L-shaped fixing block. The rear end of the fixing block is connected to the body of the positioning device through a positioning bolt. The positioning bolt can rotate back and forth, thereby changing the relative distance between the second slot and the prefabricated component to be hoisted.

5. A modular prefabricated building component positioning and hoisting device according to any one of claims 3-4, characterized in that... When the side of the positioning device abuts against the side of the precast component to be hoisted, the sides of the upper and lower locking blocks abut against the side of the precast component to be hoisted.

6. A modular prefabricated building component positioning and hoisting device according to claim 4, characterized in that... The upper spring block is made of metal.

7. A modular prefabricated building component positioning and hoisting device according to claim 6, characterized in that... The surface of the upper spring block is provided with several weight-reducing grooves.

8. A modular prefabricated building component positioning and hoisting device according to claim 6, characterized in that... In a single positioning device, there are two positioning bolts and two locking bolts.

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