Suspending and lifting device for concrete prefabricated panel

Abstract

The invention discloses a hanging and lifting device for a concrete prefabricated panel, which comprises a vertical guide rail, a lifting frame and a lifting mechanism, and a sliding mechanism is arranged in the guide rail and is used for supporting the up-down sliding of the lifting frame; the lifting frame is arranged in the guide rail in a sliding manner; the tail end of the rotating frame is connected with a pull rope; the pulley is arranged at the top of the guide rail, and the pull rope bypasses the pulley to change the direction; the winch is mounted at the bottom of the guide rail and used for winding and unwinding the pull rope; one end of the pull rope is fixedly connected to the rotating frame, and the other end of the pull rope is wound around the pulley and then wound to the winch. The two clamping plates are arranged below the rotating frame in a sliding mode and used for clamping a concrete prefabricated panel; the telescopic cylinder is connected between the two clamping plates and controls the clamping and loosening of the two clamping plates through the telescopic action of the telescopic cylinder; compared with the prior art, the operation of clamping, lifting, unloading and the like of the plate can be completed within a short time, and the requirement of fast-paced construction is met.

Description

Technical Field

[0001] The invention relates to the technical field of suspension devices, in particular to a suspension and lifting device for a prefabricated concrete plate. Background Art

[0002] As a widely used building material in modern buildings, precast concrete panels are widely used in various building structures due to their advantages of standardized production, fast construction speed, and controllable quality. In the construction process, the suspension operation of precast concrete panels is an indispensable part, which is mainly suitable for high-rise buildings, large factories, bridges, tunnels and other occasions where a large number of precast components need to be installed quickly.

[0003] In the prior art, a common suspension method is to lift the plate by clamping the edge of the plate through a clamping device. However, due to the heavy weight of the precast concrete plate, it is easy to crack during the clamping and lifting process, and the edge part is often fragile, which will lead to edge collapse. In order to solve the problem of plate cracking caused by clamping and lifting, the prior art usually adopts the method of adding a support device in the center of the plate for improvement. However, this method requires the installation of the support device after the plate is lifted, the operation process is relatively cumbersome, and increases the construction difficulty and time cost.

[0004] Another way to avoid cracking of the panels is to first erect the panels and then suspend them. Although this method can effectively reduce the force area of ​​the panels during the lifting process, thereby reducing the risk of cracking, since the precast concrete panels are usually in a horizontal state when in use, they need to be erected before hanging and lowered after installation. These additional operations not only require additional devices and equipment support, but also increase the complexity and cost of construction.

[0005] Therefore, it is necessary to provide a suspension and lifting device for precast concrete panels to solve the problems raised in the above background technology. Summary of the invention

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a suspension and lifting device for a precast concrete plate, comprising: A vertical guide rail, wherein a sliding mechanism is disposed inside the guide rail for supporting the lifting frame to slide up and down; A lifting frame, slidably disposed in the guide rail; a rotating frame, the end of which is connected to a pull rope; A pulley is arranged on the top of the guide rail, and the pull rope passes around the pulley to change direction; A winch, installed at the bottom of the guide rail, for retracting and releasing the pull rope; One end of the pull rope is fixedly connected to the rotating frame, and the other end is wound around the pulley and then reeled into the winch; Two clamping plates are slidably arranged below the rotating frame and are used to clamp the prefabricated concrete panels; The telescopic cylinder is connected between the two clamping plates and controls the clamping and loosening of the two clamping plates through its telescopic action.

[0007] Furthermore, the lifting frame is provided with a locking mechanism for locking the position of the lifting frame.

[0008] Furthermore, an inclined inclined plate is fixed below the clamping plate, and when the two clamping plates are close to each other, the two inclined plates can scoop up the plate.

[0009] Furthermore, the inclination angle of the inclined plate is Furthermore, a rotating rod is rotatably arranged on one side of the rotating frame away from the lifting frame, and an extension rod is slidably arranged in each of the rotating rods. Support rollers are arranged in the two extension rods.

[0010] Furthermore, a connecting shaft is provided on a side of the rotating frame away from the lifting frame, a turntable is rotatably provided in the connecting shaft, a guide rod is fixed on a side of the turntable away from the rotating frame, and the pull rope is connected to the lower part of the turntable.

[0011] Furthermore, the guide rod is slidably connected with a guide shaft that passes through the front and rear of the guide rod, and a through slot is provided in the rotating rod. The guide shaft passes through the through slots of the two rotating rods respectively and is fixed to the extension rod.

[0012] Furthermore, a slide groove is provided in the extension rod, and a plurality of support rollers are slidably arranged between the two extension rods.

[0013] Furthermore, two X-shaped connecting rods are hinged at both ends of the support roller, and the adjacent connecting rod ends at the same end are hinged together, and a group of connecting rods are also hinged at the end of the support roller closest to the rotating rod, which is hinged to one side of the rotating frame.

[0014] Furthermore, the surface of the support roller is coated with a rubber layer.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the device controls the retraction and extension of the pull rope through the winch to achieve the up and down and rotation movements of the lifting frame and the rotating frame. The whole process is easy to operate, which greatly reduces the complexity of manual operation and improves work efficiency.

[0016] In the present invention, the rotatable design of the rotating frame enables the plate to be suspended upright, and the center of gravity is closer to the guide rail during the lifting process, thereby reducing the risk of shaking and tilting and improving the stability of lifting.

[0017] In the present invention, the sliding arrangement of the rotating rod and the extension rod, and the uniform distribution of the supporting rollers under the action of the connecting rod enable the device to adapt to plates of different sizes and weights, thereby improving the flexibility and versatility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a suspension and lifting device for a precast concrete panel; Figure 2 It is a schematic diagram of the overall structure of the lifting frame; Figure 3 It is a schematic diagram of the side structure of the lifting frame in a horizontal state; Figure 4 It is a schematic diagram of the side structure of the lifting frame in an upwardly rotating state; In the figure: 1. guide rail; 2. lifting frame; 3. rotating frame; 31. rotating rod; 32. extension rod; 33. connecting shaft; 34. turntable; 35. guide rod; 36. guide shaft; 37. through groove; 38. slide groove; 39. connecting rod; 4. pull rope; 5. pulley; 6. winch; 7. splint; 71. inclined plate; 8. telescopic cylinder; 9. support roller. DETAILED DESCRIPTION

[0019] See also Figure 1-Figure 4 In an embodiment of the present invention, a suspension and lifting device for a precast concrete plate comprises: A vertical guide rail 1, wherein a sliding mechanism is disposed inside the guide rail 1 for supporting the lifting frame 2 to slide up and down; A lifting frame 2 is slidably disposed in the guide rail 1; A rotating frame 3, the end of which is connected to a pull rope 4; A pulley 5 is arranged on the top of the guide rail 1, and the pull rope 4 passes around the pulley 5 to change direction; A winch 6, installed at the bottom of the guide rail 1, for retracting and releasing the pull rope 4; One end of the pull rope 4 is fixedly connected to the rotating frame 3, and the other end is wound around the pulley 5 and then rolled up to the winch 6; Two clamping plates 7 are slidably disposed below the rotating frame 3 and are used to clamp the precast concrete panels; The telescopic cylinder 8 is connected between the two clamping plates 7 and controls the clamping and loosening of the two clamping plates 7 through its telescopic action.

[0020] When the winch 6 loosens the pull rope 4, the lifting frame 2 descends and the rotating frame 3 rotates to a horizontal state. The two clamping plates 7 can be clamped and flattened by the telescopic cylinder 8. When the winch 6 reels the pull rope 4, the rotating frame 3 will rotate upward, thereby standing up the clamping plates 7, so that the center of gravity of the plate is closer to the guide rail. The winch 6 continues to reel in the pull rope 4 to pull the lifting frame 2 up, thereby stably lifting the plate.

[0021] In this embodiment, a locking mechanism is provided on the lifting frame 2 for locking the position of the lifting frame 2 when needed.

[0022] In this embodiment, an inclined inclined plate 71 is fixed below the clamping plate 7, and when the two clamping plates 7 are close to each other, the two inclined plates 71 can scoop up the plate, so that the two sides of the plate can be clamped between the clamping plates 7 and the inclined plates 71, thereby fixing the up-down and lateral positions of the plate.

[0023] In this embodiment, the inclined plate (71) has an inclination angle of 45°, which can ensure sufficient scooping force when clamping the plate, and avoid unnecessary pressure or damage to the plate due to excessive angle during the lifting process.

[0024] In this embodiment, a rotating rod 31 is rotatably provided on one side of the rotating frame 3 away from the lifting frame 2 , and an extension rod 32 is slidably provided in each rotating rod 31 . Support rollers 9 are provided in two of the extension rods 32 .

[0025] By adjusting the rotation angle of the rotating rod 31 and the length of the extension rod 32, the supporting roller 9 can support the middle of the plate to avoid damage such as cracking and breaking due to force on both sides of the plate.

[0026] In this embodiment, a connecting shaft 33 is provided on the side of the rotating frame 3 away from the lifting frame 2, a turntable 34 is rotatably provided in the connecting shaft 33, a guide rod 35 is fixed on the side of the turntable 34 away from the rotating frame 3, and the pull rope 4 is connected to the lower part of the turntable 34.

[0027] In this embodiment, the guide rod 35 is slidably connected with a guide shaft 36 that passes through the front and rear of the guide rod 35 . A through slot 37 is provided in the rotating rod 31 . The guide shaft 36 passes through the through slots 37 of the two rotating rods 31 and is fixed to the extension rod 32 .

[0028] The rotating rod 31 and the connecting shaft 33 are arranged offset to each other. When the winch 6 reels in the pull rope 4, the turntable 34 will be subjected to torque to cause the guide rod 35 to rotate downward and the extension rod 32 to extend. When the guide rod 35 rotates to the point where the support roller 9 presses the plate and cannot continue to rotate, the pull rope 4 will pull the rotating frame 3 to rotate upward, thereby making the plate stand up.

[0029] In this embodiment, a slide groove 38 is provided in the extension rod 32 , and a plurality of support rollers 9 are slidably provided between the two extension rods 32 .

[0030] In this embodiment, two X-shaped connecting rods 39 are hinged at both ends of the support roller 9, and the ends of the adjacent connecting rods 39 at the same end are hinged together, and a group of connecting rods 39 are also hinged at the end of the support roller 9 closest to the rotating rod 31, and the group of connecting rods 39 are hinged to one side of the rotating frame 3.

[0031] That is, when the extension rod 32 is extended, the support rollers 9 will increase their spacing in a uniformly distributed manner under the action of the connecting rod 39, so that the support rollers 9 are evenly distributed in the extension rod 32 attached to the plate, so as to provide uniform support for the plate.

[0032] In this embodiment, the surface of the support roller 9 is coated with a rubber layer, which can not only play a buffering role between the support roller 9 and the plate, but also increase the sliding friction between the support roller 9 and the plate to ensure that the plate does not slide back and forth.

[0033] When implementing: Operate the winch 6 to loosen the pull rope 4, so that the lifting frame 2 is lowered to the ground. At the same time, the rotating frame 3 rotates to a horizontal state under the action of gravity. Start the telescopic cylinder 8 to push the two clamping plates 7 to move closer to the middle. The inclined plate 71 scoops up the plate and clamps it between the clamping plate 7 and the inclined plate 71 to fix the up-down and lateral positions of the plate. After confirming that the plate has been firmly clamped and supported, operate the winch 6 to start winding the drawstring 4. As the drawstring 4 is tightened, the turntable 34 is subjected to torque, causing the guide rod 35 to rotate downward, thereby pushing the extension rod 32 to extend, and the support roller 9 further presses the plate. When the guide rod 35 rotates to the point where the support roller 9 presses the plate and cannot continue to rotate, the tension of the drawstring 4 will begin to pull the rotating frame 3 to rotate upward, causing the clamping plate 7 and the clamped plate to stand up, and the center of gravity of the plate is closer to the guide rail 1. Continue to wind up the drawstring 4, and the lifting frame 2 will rise accordingly. At the same time, the rotating frame 3 keeps the plate in an upright state, and stably lifts the plate to the required height. When the plate is lifted to the specified height, the lifting frame 2 is locked in the current position to ensure that the plate is stably suspended, the winch 6 releases the pull rope 4, the rotating frame 3 rotates downward to a horizontal state, and the telescopic cylinder 8 is started to make the clamping plate 7 release the plate, and the plate slides out from the inclined plate 71.

[0034] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A suspension and lifting device for a prefabricated concrete plate, comprising: A vertical guide rail (1), wherein a sliding mechanism is arranged inside the guide rail (1) for supporting the lifting frame (2) to slide up and down; A lifting frame (2) slidably disposed in the guide rail (1); A rotating frame (3), the end of which is connected to a pull rope (4); A pulley (5) is arranged on the top of the guide rail (1), and the pull rope (4) passes around the pulley (5) to change direction; A winch (6) installed at the bottom of the guide rail (1) and used for retracting and releasing the pull rope (4); One end of the pull rope (4) is fixedly connected to the rotating frame (3), and the other end is wound around the pulley (5) and then reeled into the winch (6); Two clamping plates (7) are slidably arranged below the rotating frame (3) and are used to clamp the prefabricated concrete panels; The telescopic cylinder (8) is connected between the two clamping plates (7) and controls the clamping and loosening of the two clamping plates (7) through its telescopic action.

2. The suspension and lifting device for precast concrete panels according to claim 1, characterized in that: The lifting frame (2) is provided with a locking mechanism for locking the position of the lifting frame (2).

3. The suspension and lifting device for precast concrete panels according to claim 1, characterized in that: An inclined inclined plate (71) is fixed below the clamping plate (7), and when the two clamping plates (7) are close to each other, the two inclined plates (71) can scoop up the plate.

4. The suspension and lifting device for precast concrete panels according to claim 3, characterized in that: The inclined plate (71) has an inclination angle of (45)°.

5. The suspension and lifting device for precast concrete panels according to claim 1, characterized in that: A rotating rod (31) is rotatably arranged forwards and backwards on a side of the rotating frame (3) away from the lifting frame (2), an extension rod (32) is slidably arranged in each of the rotating rods (31), and support rollers (9) are arranged in the two extension rods (32).

6. The suspension and lifting device for precast concrete panels according to claim 5, characterized in that: A connecting shaft (33) is provided on a side of the rotating frame (3) away from the lifting frame (2), a rotating disk (34) is rotatably provided in the connecting shaft (33), a guide rod (35) is fixed on a side of the rotating disk (34) away from the rotating frame (3), and the pull rope (4) is connected to the lower part of the rotating disk (34).

7. The suspension and lifting device for precast concrete panels according to claim 6, characterized in that: The guide rod (35) is slidably connected to a guide shaft (36) that passes through the front and rear of the guide rod. A through slot (37) is provided in the rotating rod (31). The guide shaft (36) passes through the through slots (37) of the two rotating rods (31) and is fixed to the extension rod (32).

8. The suspension and lifting device for precast concrete panels according to claim 5, characterized in that: A sliding groove (38) is provided in the extension rod (32), and a plurality of supporting rollers (9) are slidably arranged between the two extension rods (32).

9. The suspension and lifting device for precast concrete panels according to claim 8, characterized in that: Two connecting rods (39) distributed in an X shape are hinged at both ends of the support roller (9), and the ends of the adjacent connecting rods (39) at the same end are hinged together. A group of connecting rods (39) is also hinged at the end of the support roller (9) closest to the rotating rod (31), and the group of connecting rods (39) is hinged to one side of the rotating frame (3).

10. The suspension and lifting device for precast concrete panels according to claim 1, characterized in that: The surface of the support roller (9) is coated with a rubber layer.

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