A modular prefabricated floor slab hoisting equipment

Abstract

This utility model discloses a modular prefabricated floor slab hoisting device, belonging to the field of prefabricated building construction equipment. It includes a hoisting beam with hoisting lugs at its top and an adjustable frame on the beam. A clamping mechanism is connected to the bottom of the adjustable frame via a connecting frame. The clamping mechanism includes a support beam with a first clamping arm and a second clamping arm below it. Both the first and second clamping arms are connected to the support beam via sliding components, and a driving mechanism is provided between them. The spacing between the two adjustable frames can be adjusted according to the length of the prefabricated floor slab. The first and second clamping arms can accommodate prefabricated floor slabs of different widths, offering a wide range of applications and strong adaptability. The driving mechanism moves the first and second clamping arms closer together to clamp the prefabricated floor slab, reducing labor intensity and improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building construction equipment, and in particular to a modular prefabricated floor slab hoisting equipment. Background Technology

[0002] With the acceleration of industrialization in the construction industry, modular prefabricated buildings have become an important development direction in the modern construction field due to their significant advantages such as high construction efficiency, less on-site pollution, and easy control of component quality. Among them, modular prefabricated floor slabs, as the core component of the building's horizontal load-bearing system, directly determine the construction cycle and construction quality of the overall project through the efficiency and safety of their on-site installation. The hoisting operation, as a key process for transferring floor slabs from the component storage area to the installation position, places stringent requirements on the performance of hoisting equipment.

[0003] Currently, the hoisting of modular prefabricated floor slabs mainly relies on traditional lifting equipment (such as truck cranes and tower cranes) in conjunction with conventional lifting tools (such as wire rope slings and ordinary hooks). However, this traditional hoisting method has many insurmountable drawbacks in practical applications: First, poor adaptability: Modular prefabricated floor slabs vary greatly in specifications and dimensions, and traditional lifting tools are mostly fixed structures, making it impossible to flexibly adjust the hoisting point position according to the specific parameters of the floor slab. This can easily lead to uneven stress on the floor slab, causing components to tilt, deform, or even fall off during the hoisting process. Second, low work efficiency: In the traditional hoisting process, the connection and disassembly of the lifting tools and the floor slab must be completed manually. Especially in high-altitude operations, operators need to perform untying operations below or to the side of the components, which is not only labor-intensive but also poses safety hazards such as falls from heights and being struck by objects. In addition, the cycle of a single hoisting operation is long. Utility Model Content

[0004] The purpose of this utility model is to provide a modular prefabricated floor slab hoisting equipment to solve the problems of poor adaptability of existing hoisting devices, high labor intensity of untying operations, and low work efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model discloses a modular prefabricated floor slab hoisting device, including a hoisting beam, a hoisting lug on the top of the hoisting beam, an adjustable frame on the hoisting beam, and a clamping mechanism at the bottom of the adjustable frame via a connecting frame.

[0007] The clamping mechanism includes a support beam, which is disposed at the bottom of the connecting frame. Below the support beam are a first clamping arm and a second clamping arm for clamping the prefabricated floor slab. Both the first clamping arm and the second clamping arm are connected to the support beam via a sliding assembly. A driving mechanism is disposed between the first clamping arm and the second clamping arm.

[0008] Furthermore, the number of lifting lugs is set to three, with the three lifting lugs respectively located at the middle, left, and right ends of the top surface of the lifting beam.

[0009] Furthermore, the top surface of the lifting beam is provided with two sets of positioning modules, and the number of the adjusting frame is set to two. Each set of positioning modules is used to adjust the position of the adjusting frame.

[0010] Furthermore, the positioning module includes several positioning blocks, which are equidistantly distributed on the top surface of the lifting beam. The top of the adjusting frame is located in the mounting cavity between two adjacent positioning blocks. A fixing cover plate is provided above the adjusting frame, and the fixing cover plate is bolted to two adjacent positioning blocks.

[0011] Furthermore, the sliding assembly includes a slide rod disposed below the support beam, a slider slidably disposed on the slide rod, and the first clamping arm or the second clamping arm disposed at the bottom of the slider.

[0012] Furthermore, the driving mechanism includes a driving component, which is disposed above the support beam. The working rod of the driving component is connected to the first clamping arm via a movable frame. A gear is disposed at the center of the bottom of the support beam. Both the first clamping arm and the second clamping arm are provided with racks that mesh with the gear. A pressure wheel is disposed below the support beam on the outside of the rack.

[0013] Furthermore, both the bottom outer sides of the first clamping arm and the second clamping arm are provided with a hooking mechanism, and a hanging ring is detachably provided on the hooking mechanism, with a protective rope provided between the two hanging rings.

[0014] Furthermore, the hanging mechanism includes a fixing frame, which is disposed on the outer side wall of the first clamping arm or the second clamping arm. A partition is disposed inside the fixing frame, and a pull rod is disposed on the fixing frame. A spring is sleeved on the pull rod above the partition. The lower end of the pull rod passes through the partition and extends to the bottom of the fixing frame. The hanging ring is sleeved on the pull rod at the position between the partition and the bottom plate of the fixing frame.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0016] The spacing between the two adjustable frames of this utility model can be adjusted according to the length of the prefabricated floor slab. The first and second clamping arms of the clamping mechanism can also be matched with prefabricated floor slabs of different widths, with a wide range of applications and strong adaptability. The driving mechanism drives the first and second clamping arms to move closer to each other to clamp the prefabricated floor slab. Compared with the traditional manual untying method, it greatly reduces labor intensity and improves work efficiency. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is the front view of the modular prefabricated floor slab hoisting equipment of this utility model;

[0019] Figure 2 This is a side view of the modular prefabricated floor slab hoisting equipment of this utility model;

[0020] Figure 3 This is a top view of the modular prefabricated floor slab hoisting equipment of this utility model;

[0021] Figure 4 This is a structural diagram of the lifting beam, positioning module, and adjusting frame of this utility model;

[0022] Figure 5 This is a schematic diagram of the clamping mechanism of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the attachment mechanism of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Lifting beam; 2. Lifting lug; 3. Positioning block; 4. Adjusting frame; 5. Fixed cover plate; 6. Connecting frame; 7. Support beam; 8. First clamping arm; 9. Second clamping arm; 10. Driving component; 11. Moving frame; 12. Gear; 13. Rack; 14. Pressure wheel; 15. Slide rod; 16. Sliding block; 17. Fixed frame; 18. Partition plate; 19. Pull rod; 20. Spring; 21. Hanging ring; 22. Protective cable; 23. Lifting sling; 24. Lifting hook; 25. Lifting ring. Detailed Implementation

[0025] like Figure 1-6 As shown, a modular prefabricated floor slab hoisting device includes a hoisting beam 1. The top of the hoisting beam 1 is connected to three lifting lugs 2, which are respectively located at the middle, left, and right ends of the top surface of the hoisting beam 1. The hoisting beam 1 is provided with two adjustable frames 4, and the spacing between the two adjustable frames 4 can be adjusted according to the length of the prefabricated floor slab. The bottom of the adjustable frames 4 is equipped with a clamping mechanism through a connecting frame 6.

[0026] like Figure 3As shown, two sets of positioning modules are installed on the top surface of the suspension beam 1, arranged symmetrically. Two adjusting frames 4 are also present, each set of positioning modules used to adjust the position of the adjusting frame 4. Each positioning module includes several positioning blocks 3, equidistantly distributed on the top surface of the suspension beam 1. The top of the adjusting frame 4 is installed in the mounting cavity between two adjacent positioning blocks 3. A fixing cover plate 5 is provided above the adjusting frame 4, and the fixing cover plate 5 is bolted to the two adjacent positioning blocks 3. In use, the position of the adjusting frame 4 is adjusted according to the length of the prefabricated floor slab. The top beam of the adjusting frame 4 is installed in the mounting cavity between two adjacent positioning blocks 3, and the fixing cover plate 5 is placed on top of the top beam. The central protrusion of the fixing cover plate 5 contacts the top beam, and the fixing parts on both sides of the fixing cover plate 5 are bolted to the positioning blocks 3.

[0027] like Figure 5 As shown, the clamping mechanism includes a support beam 7, which is connected to the bottom of the connecting frame 6. A first clamping arm 8 and a second clamping arm 9 for clamping the prefabricated floor slab are provided below the support beam 7. The first clamping arm 8 and the second clamping arm 9 are both connected to the support beam 7 through a sliding assembly. A driving mechanism is provided between the first clamping arm 8 and the second clamping arm 9.

[0028] The sliding assembly includes a slide rod 15, both ends of which are connected to the bottom surface of the support beam 7 via supports. A slider 16 is slidably mounted on the slide rod 15, and the first clamping arm 8 or the second clamping arm 9 is connected to the bottom of the slider 16.

[0029] The driving mechanism includes a driving component 10, which can be a hydraulic cylinder. The driving component 10 is mounted above the support beam 7 via a mounting plate. A movable frame 11 is connected to the top of the first clamping arm 8. The working rod of the driving component 10 is connected to the movable frame 11. A gear 12 is mounted at the bottom center of the support beam 7 via a rotating shaft. Both the first clamping arm 8 and the second clamping arm 9 are connected to racks 13 that mesh with the gear 12. The two racks 13 mesh with the two sides of the gear 12 respectively. Below the support beam 7, a pressure wheel 14 is mounted on the outside of the racks 13 via a mounting frame. During the movement of the racks 13, the pressure wheel 14 presses the racks 13 to ensure that the racks 13 mesh with the gear 12.

[0030] When in use, when the working rod of the drive component 10 is shortened, it drives the first clamping arm 8 to move backward, and the rack 13 connected to the first clamping arm 8 also moves backward, thereby driving the gear 12 to rotate. The rotation of the gear 12 drives the rack 13 connected to the second clamping arm 9 to move forward, the distance between the first clamping arm 8 and the second clamping arm 9 decreases, the first clamping arm 8 and the second clamping arm 9 move closer to each other, and clamp the prefabricated floor slab.

[0031] Both the bottom outer sides of the first clamping arm 8 and the second clamping arm 9 are connected to a hanging mechanism, on which a hanging ring 21 is detachably installed. A protective cable 22 is connected between the two hanging rings 21. The protective cable 22 is located below the prefabricated floor slab, further improving the safety of the hoisting process.

[0032] like Figure 6 As shown, the hanging mechanism includes a fixing frame 17, which is configured as a U-shaped structure. The vertical plate of the fixing frame 17 is connected to the outer wall of the first clamping arm 8 or the second clamping arm 9. A partition 18 is connected inside the fixing frame 17. A pull rod 19 is installed on the fixing frame 17. A pull ring is connected to the top of the pull rod 19. The rod body of the pull rod 19 passes through the through holes of the top plate of the fixing frame 17, the partition 18, and the bottom plate of the fixing frame 17 in sequence. A spring 20 is sleeved on the pull rod 19 above the partition 18. A limit block is connected on the outer wall of the pull rod 19 below the spring 20. The lower end of the pull rod 19 passes through the partition 18 and the bottom plate of the fixing frame 17 and extends to the bottom of the fixing frame 17. The hanging ring 21 is sleeved on the pull rod 19 at the position between the partition 18 and the bottom plate of the fixing frame 17. When in use, pull the lever 19 upwards. The bottom end of the lever 19 is pulled out from the base plate of the fixing frame 17, compressing the spring 20. Place the hanging ring 21 on the surface of the base plate of the fixing frame 17. Release the lever 19. Under the elastic force of the spring 20, the lever 19 moves downwards, passes through the hanging ring 21, and is reinserted into the through hole of the base plate of the fixing frame 17.

[0033] The working process of this utility model is as follows:

[0034] First, adjust the position of the adjusting frame 4 according to the length of the prefabricated floor slab, install the top beam of the adjusting frame 4 in the installation cavity between two adjacent positioning blocks 3, and cover the top beam with a fixing cover plate 5. The protruding part in the middle of the fixing cover plate 5 contacts the top beam, and the fixing parts on both sides of the fixing cover plate 5 are connected to the positioning blocks 3 by bolts. Then, connect the hook 24 at the bottom of the sling 23 to the lifting lug 2, and connect the lifting ring 25 at the top of the sling 23 to the hook of the crane, thereby connecting the equipment to the crane. Finally, the crane moves to the working position, the lifting beam 1 moves to the top of the prefabricated floor slab, and the two clamping mechanisms are symmetrical about the center position of the prefabricated floor slab to ensure that the prefabricated floor slab is subjected to balanced force. The drive mechanism drives the first clamping arm 8 and the second clamping arm 9 to move closer to each other to clamp the prefabricated floor slab. Install the hanging rings 21 at both ends of the protective cable 22 on the hanging mechanism, and then use the crane to lift the prefabricated floor slab.

[0035] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A modular prefabricated floor slab hoisting equipment, characterized in that: Includes a lifting beam (1), the top of which is provided with a lifting lug (2), and the lifting beam (1) is provided with an adjustable frame (4) with an adjustable position. The bottom of the adjustable frame (4) is provided with a clamping mechanism through a connecting frame (6). The clamping mechanism includes a support beam (7), which is located at the bottom of the connecting frame (6). A first clamping arm (8) and a second clamping arm (9) for clamping the prefabricated floor slab are located below the support beam (7). The first clamping arm (8) and the second clamping arm (9) are both connected to the support beam (7) through a sliding component. A driving mechanism is provided between the first clamping arm (8) and the second clamping arm (9).

2. The modular prefabricated floor slab hoisting equipment according to claim 1, characterized in that: The number of the lifting lugs (2) is set to three, and the three lifting lugs (2) are respectively located at the middle, left and right ends of the top surface of the lifting beam (1).

3. The modular prefabricated floor slab hoisting equipment according to claim 1, characterized in that: The top surface of the lifting beam (1) is provided with two sets of positioning modules, and the number of the adjustment frame (4) is set to two. Each set of positioning modules is used to adjust the position of the adjustment frame (4).

4. The modular prefabricated floor slab hoisting equipment according to claim 3, characterized in that: The positioning module includes several positioning blocks (3), which are equidistantly distributed on the top surface of the lifting beam (1). The top of the adjusting frame (4) is set in the mounting cavity between two adjacent positioning blocks (3). A fixing cover plate (5) is provided above the adjusting frame (4), and the fixing cover plate (5) is connected to two adjacent positioning blocks (3) by bolts.

5. The modular prefabricated floor slab hoisting equipment according to claim 1, characterized in that: The sliding assembly includes a slide rod (15) disposed below the support beam (7), and a slider (16) is slidably disposed on the slide rod (15). The first clamping arm (8) or the second clamping arm (9) is disposed at the bottom of the slider (16).

6. The modular prefabricated floor slab hoisting equipment according to claim 1, characterized in that: The driving mechanism includes a driving component (10), which is located above the support beam (7). The working rod of the driving component (10) is connected to the first clamping arm (8) via a moving frame (11). A gear (12) is provided at the bottom center of the support beam (7). Both the first clamping arm (8) and the second clamping arm (9) are provided with racks (13) that mesh with the gear (12). A pressure wheel (14) is provided below the support beam (7) on the outside of the rack (13).

7. The modular prefabricated floor slab hoisting equipment according to claim 1, characterized in that: The bottom outer sides of the first clamping arm (8) and the second clamping arm (9) are provided with a hooking mechanism. The hooking mechanism is detachably provided with a hanging ring (21), and a protective rope (22) is provided between the two hanging rings (21).

8. The modular prefabricated floor slab hoisting equipment according to claim 7, characterized in that: The hanging mechanism includes a fixing frame (17), which is disposed on the outer side wall of the first clamping arm (8) or the second clamping arm (9). A partition (18) is disposed inside the fixing frame (17). A pull rod (19) is disposed on the fixing frame (17). A spring (20) is sleeved on the pull rod (19) and above the partition (18). The lower end of the pull rod (19) passes through the partition (18) and extends to the bottom of the fixing frame (17). The hanging ring (21) is sleeved on the pull rod (19) at the position between the partition (18) and the bottom plate of the fixing frame (17).

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