Trolley for hoisting and moving large prefabricated part

Abstract

The invention relates to the technical field of road construction equipment, and discloses a trolley for hoisting and moving a large prefabricated component, the trolley comprises a frame and wheels, the wheels are mounted at the bottom of the frame, the frame is provided with a driving device, a moving device and a hoisting device, the driving device is used for driving the wheels to rotate, and the moving device is used for driving the hoisting device to move on the frame. The lifting device comprises a lifting gravity rope, a first power piece used for driving the lifting gravity rope to stretch out and draw back and a lifting hook assembly, the frame is further provided with a storage platform used for storing the large prefabricated parts, the storage platform is located below the lifting device, the storage platform is provided with a plurality of partition plates, and the space between every two adjacent partition plates is used for containing the large prefabricated parts. The method is used for solving the problems that time and labor are consumed and efficiency is low when existing large prefabricated parts such as curbs are installed.

Description

Technical Field

[0001] The invention relates to the technical field of road construction equipment, and in particular to a trolley for lifting and moving large prefabricated components. Background Art

[0002] As roads of all levels and even roads in parks, there must be a clear dividing line between the lanes and sidewalks. The dividing line is usually divided by curbstones. The construction of curbstones determines the progress and quality of road construction to a certain extent. Curbstones refer to the boundary stones set at the edge of the road surface and other structural belts, referred to as curbstones. The installation and construction of curbstones is an indispensable part of road construction. After the construction of the road base is completed, the curbstones must be installed as soon as possible to ensure that the surface layer can be paved as soon as possible. During the construction of the curbstones, the curbstones are generally transported to the side of the road and stacked, and then transported and installed piece by piece by manpower. Because the curbstones are heavy, two people are required to use hemp ropes and iron hooks to tie and transport them. After they are transported to the installation location, the hemp ropes and iron hooks that tie the curbstones are removed. Road construction needs to be accelerated during the rainy season and winter. The installation of curbstones begins during the road maintenance period. Because vehicles cannot be driven on the road base during the maintenance period, the curbstones are concentrated at both ends of the road, and they are loaded and unloaded on carts by manpower and transported to the installation location, resulting in low efficiency and serious delays in the construction period. Summary of the invention

[0003] The purpose of the present invention is to provide a trolley for lifting and moving large prefabricated components, so as to solve the problems of time-consuming, labor-intensive and low-efficiency in the installation of existing curbstones in the above-mentioned background technology.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] A trolley for lifting and moving large prefabricated components comprises a frame and wheels, wherein the wheels are mounted at the bottom of the frame, and the frame is provided with a driving device, a moving device and a lifting device, wherein the driving device is used to drive the wheels to rotate, and the moving device is used to drive the lifting device to move on the frame, and the lifting device comprises a lifting gravity rope, a power member for driving the lifting gravity rope to extend and retract, and a lifting hook assembly, and the frame is also provided with a storage platform for storing large prefabricated components, the storage platform is located below the lifting device, and a plurality of partitions are provided on the storage platform, and the space between two adjacent partitions is used to place large prefabricated components.

[0006] The principle of the present invention: the frame serves as the basic skeleton of the entire trolley and plays a role in supporting and stabilizing. The wheels move under the action of the driving device to enable the trolley to reach the designated position. After the large prefabricated components are manually tied and fixed, the trolley is in place, and the required large prefabricated components are fixedly connected through the lifting hook assembly, and the large prefabricated components are lifted into the air by driving the lifting gravity rope through the power member; then the lifting device is driven by the moving device to move the large prefabricated components to the installation site on the construction site for installation; during installation, the large prefabricated components are moved up and down and forward and backward by the driving device and the moving device until the large prefabricated components are installed in place.

[0007] If the transportation distance is long, use a storage platform to store multiple prefabricated components. Specifically, after the prefabricated components are connected through the lifting hook assembly, they are slowly moved to the storage platform by using a driving device and a moving device. The prefabricated components are placed on the storage platform and separated by partitions to facilitate subsequent installation and lifting.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] 1. The driving device drives the trolley to move to the predetermined installation position, and the moving device and the power part adjust the position of the lifting hook assembly up and down and front and back, which is convenient for the installation of large prefabricated components. It has the advantages of simple operation and strong flexibility.

[0010] 2. Setting up a storage platform to store multiple prefabricated components avoids repeated turning back and empty return of the trolley, and improves the working efficiency of the trolley. Using partitions to separate the stored prefabricated components makes it easier for the lifting device to lift and install the prefabricated components, saving time and improving efficiency.

[0011] Furthermore, a fastening mechanism is provided in the space between the two adjacent partitions, and the fastening mechanism includes a fastening concave plate, a bottom carrier block and at least one pair of oppositely arranged side clamping blocks. A cavity is provided in the fastening concave plate, a vertically arranged longitudinal sliding rod is connected between the bottom carrier block and the fastening concave plate, one end of the longitudinal sliding rod is fixedly connected to the bottom carrier block, and the other end of the longitudinal sliding rod is sealed and slidably connected in the cavity, a horizontally arranged transverse sliding rod is connected between the side clamping block and the fastening concave plate, one end of the transverse sliding rod is fixedly connected to the side clamping block, and the other end of the transverse sliding rod is sealed and slidably connected in the cavity.

[0012] The prefabricated components on the storage platform are fixed by the fastening mechanism. Specifically, the prefabricated components are lifted to the storage platform by the lifting device, and the prefabricated components are slowly placed on the bottom carrier block between the side clamp blocks. As the prefabricated components contact the bottom carrier block, they will push the bottom carrier block downward under the action of their own gravity. The bottom carrier block will drive the longitudinal slide bar to slide downward, reducing the volume of the cavity and increasing the air pressure, thereby causing the transverse slide bar to slide out of the cavity. The transverse slide bar will drive the side clamp blocks to move toward the prefabricated components until the side clamp blocks press the prefabricated components tightly. The fastening mechanism uses the prefabricated components' own gravity to drive the fastening mechanism to fix them, which saves time, effort, and is stable, ensuring the efficiency and effect of the entire lifting work.

[0013] Furthermore, the fastening mechanism includes two pairs of side clamps arranged opposite to each other, which are used to fix the four sides of the large prefabricated component. Multiple pairs of side clamps are used to tighten and fix the prefabricated component from all directions to achieve a better stabilization effect and prevent the prefabricated component from shaking during trolley operation or transportation.

[0014] Furthermore, the top of the side clamp block is arranged in a downwardly inclined wedge shape, which is convenient for placing the prefabricated component into the fastening mechanism.

[0015] Furthermore, the storage platform is slidably connected to the frame, and a storage bin is provided on the frame, and the storage platform slides into the storage bin. The storage platform is pulled out of the storage bin by sliding, so that the lifting device can put the prefabricated components onto the storage platform; the storage platform is pushed into the storage bin by sliding, and the prefabricated components are stored and protected by the storage bin.

[0016] Furthermore, a counterweight assembly is provided on the frame, and the counterweight assembly is arranged opposite to the storage platform. The counterweight assembly is used to balance the trolley, so that it can be more stable during operation.

[0017] Furthermore, the moving device includes a ball screw and a power member 2 for driving the ball screw, the ball screw is rotatably connected to the vehicle frame, a carrier plate is fixedly connected to the nut of the ball screw, and the lifting device is arranged on the carrier plate. The ball screw is driven to rotate by the power member 2, and the nut on it will make a linear motion, and the carrier plate is driven to move by the nut, thereby achieving a moving driving effect on the lifting device, so that the lifting device can reach a more stable state when moving.

[0018] Furthermore, the carrier plate is rotatably connected with a guide wheel and a conductor roller, and a circumferential groove is provided on the conductor roller. The lifting gravity rope is wound around the guide wheel and one end is fixed on the conductor roller and wound in the groove. The conductor roller is driven to rotate by a power member, and the conductor roller rotates to wind the lifting gravity rope into the groove thereon. The groove is used to limit the lifting gravity rope, so that the conductor roller can achieve a better retracting and releasing effect on the lifting gravity rope. The guide wheel guides and stabilizes the lifting gravity rope, making the lifting gravity rope more stable during the process of lifting the prefabricated component, and preventing it from shaking and affecting the lifting effect.

[0019] Further, the lifting hook assembly is a lifting hook, and the lifting hook is fixedly connected to the lifting gravity rope. The prefabricated component is fixed by the lifting hook, and the lifting gravity rope is used to lift and lower the lifting hook, so as to lift and install the prefabricated component.

[0020] Furthermore, the lifting hook assembly includes a lifting main board and two lifting claws arranged in an arc shape. The lifting main board is fixed on the lifting gravity rope. One end of the lifting claw is hinged on the lifting main board. A torsion spring is provided at the hinge. The other end of the lifting claw is relatively arranged and fixed with an electromagnet that attracts each other magnetically. When lifting the prefabricated component, the electromagnet is energized, and the electromagnets will attract each other, so that the free ends of the two lifting claws merge, and the torsion spring will deform and store force, thereby fixing the prefabricated component. Then, the lifting main board is lifted by the lifting gravity rope. The lifting main board acts as a carrier to support the lifting claws, so that it can be more stable during the lifting process. When the prefabricated component needs to be placed and installed, the electromagnet is powered off, and the lifting claws are reset and separated under the action of the torsion spring, releasing the fixation of the prefabricated component, thereby achieving the effect of automatically loosening the prefabricated component and improving the efficiency of the trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a partial cross-sectional structure of a front view of the first embodiment of the present invention;

[0022] Figure 2 It is a partial bottom view schematic diagram of the first embodiment of the present invention;

[0023] Figure 3 It is a partial side view schematic diagram of the lifting device in the first embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the positional relationship between the conductor roller and the first motor in the first embodiment of the present invention;

[0025] Figure 5 It is a schematic diagram of a partial cross-sectional structure of a front view of Embodiment 2 of the present invention;

[0026] Figure 6 for Figure 5 A magnified view at point A;

[0027] Figure 7 It is a schematic structural diagram of the lifting hook assembly in the second embodiment of the present invention. DETAILED DESCRIPTION

[0028] The following is further described in detail through specific implementation methods:

[0029] The figure marks in the drawings of the specification include: frame 1, wheel 2, engine group 3, ball screw 4, second motor 5, nut 6, carrier plate 7, lifting gravity rope 8, lifting hook 9, first motor 10, guide wheel 11, wire roller 12, groove 13, storage platform 14, counterweight assembly 15, partition 16, storage bin 17, slide rail 18, limit block 19, hydraulic cylinder 20, fastening concave plate 21, bottom carrier block 22, side clamping block 23, cavity 24, longitudinal slide rod 25, transverse slide rod 26, lifting main board 27, lifting claw 28, electromagnet 29.

[0030] Embodiment 1 is basically as shown in the attached Figures 1 to 4 As shown:

[0031] A trolley for lifting and moving large prefabricated components comprises a frame 1 and wheels 2, wherein the wheels 2 are mounted at the bottom of the frame 1, and the frame 1 is provided with a driving device, a moving device and a lifting device, wherein the driving device is used to drive the wheels 2 to rotate, and the driving device is an engine group 3. The moving device is used to drive the lifting device to move on the frame 1, and the moving device comprises two horizontally arranged ball screws 4 and a second power member for driving the ball screws 4. In this embodiment, the second power member is a second motor 5. The ball screws 4 are rotatably connected to the frame 1, and a carrier plate 7 is fixedly connected to the nuts 6 of the two ball screws 4, and the lifting device is arranged on the carrier plate 7.

[0032] The lifting device includes a lifting gravity rope 8, a power part 1 for driving the lifting gravity rope 8 to extend and retract, and a lifting hook 9. The lifting hook 9 is fixedly connected to the lifting gravity rope 8, and the power part 1 is a first motor 10. A guide wheel 11 and a conductor roller 12 are rotatably connected to the carrier plate 7. The conductor roller 12 is coaxially connected to the output shaft of the first motor 10. A circumferential groove 13 is provided on the conductor roller 12. The lifting gravity rope 8 is wound around the guide wheel 11 and one end is fixed on the conductor roller 12 and wound in the groove 13.

[0033] The frame 1 is also provided with a storage platform 14 and a counterweight assembly 15 for storing large prefabricated components, and the counterweight assembly 15 is arranged opposite to the storage platform 14. The storage platform 14 is located below the lifting device, and a plurality of partitions 16 are fixedly connected to the storage platform 14, and the space between two adjacent partitions 16 is used to place large prefabricated components.

[0034] In specific implementation, the engine group 3 drives the wheels 2 to rotate, driving the trolley to move to the specified position. The second motor 5 is started, and the second motor 5 drives the ball screw 4 to rotate. When the ball screw 4 rotates, it will drive the nut 6 on it to move linearly. The nut 6 is used to drive the carrier plate 7 to move, thereby adjusting the position of the lifting device so that it is located directly above the prefabricated component. The first motor 10 is started, and the first motor 10 drives the wire roller 12 to rotate forward. The wire roller 12 rotates to release the lifting gravity rope 8. Under the gravity of the lifting hook 9, the lifting hook 9 slowly contacts the prefabricated component and fixes the prefabricated component. Then the first motor 10 drives the wire roller 12 to rotate in the opposite direction, and the wire roller 12 shrinks and winds the lifting gravity rope 8 into the groove 13. Under the guidance of the guide wheel 11, the lifting gravity rope 8 stably lifts the lifting hook 9, thereby lifting the prefabricated component to a suitable height. Then, the second motor 5 drives the ball screw 4 to rotate, and the carrier plate 7 moves to drive the entire lifting device and the prefabricated component to move horizontally, so that the prefabricated component is located above the storage platform 14. The first motor 10 drives the wire roller 12 to rotate forward, and the lifting gravity rope 8 is released through the rotation of the wire roller 12. Under the gravity of the lifting hook 9 and the prefabricated component, the prefabricated component is placed between the partitions 16 of the storage platform 14. Repeating the above steps can place multiple prefabricated components on the storage platform 14, and the prefabricated components are separated and limited by the partitions 16 to prevent the prefabricated components from shaking and causing damage during the operation or movement of the trolley. As more and more prefabricated components are stored on the storage platform 14, the weight of one side of the storage platform 14 on the trolley will increase. During the process, the weight balancing assembly 15 is used. In this embodiment, a gravity block, such as an iron block, can be used for weight balancing. During installation, the prefabricated structure on the storage platform 14 is lifted to the designated installation position by the lifting device.

[0035] Embodiment 2 is basically as shown in the attached Figures 5 to 7 As shown:

[0036] The difference between this embodiment and the first embodiment is that a storage bin 17 is fixedly connected to the frame 1, a horizontally arranged slide rail 18 is fixedly connected inside the storage bin 17, the left end of the slide rail 18 extends out of the storage bin 17 and is provided with a limit block 19, the storage platform 14 is slidably connected to the slide rail 18, a hydraulic cylinder 20 for driving the storage platform 14 to slide is fixedly connected inside the storage bin 17 by threads, and the storage platform 14 slides in and out of the storage bin 17.

[0037] A fastening mechanism is provided in the space between two adjacent partitions 16, and the fastening mechanism includes a fastening concave plate 21, a bottom carrier block 22 and at least one pair of oppositely arranged side clamp blocks 23. In this embodiment, two pairs of oppositely arranged side clamp blocks 23 are provided to fix the four sides of the large prefabricated component, namely, the front, back, left, and right sides. The top of each side clamp block 23 is wedge-shaped and inclined downward toward the prefabricated component. A cavity 24 is provided in the fastening concave plate 21, and a vertically arranged longitudinal slide bar 25 is connected between the bottom carrier block 22 and the fastening concave plate. The upper end of the longitudinal slide bar 25 is fixedly connected to the bottom carrier block 22, and the lower end of the longitudinal slide bar 25 is sealed and slidably connected in the cavity 24. A horizontally arranged transverse slide bar 26 is connected between the side clamp block 23 and the fastening concave plate, and one end of the transverse slide bar 26 is fixedly connected to the side clamp block 23, and the other end of the transverse slide bar 26 is sealed and slidably connected in the cavity 24.

[0038] The lifting hook 9 assembly includes a lifting main board 27 and two lifting claws 28 arranged in an arc shape. The lifting main board 27 is fixed on the lifting gravity rope 8. One end of the lifting claw 28 is hinged to the lifting main board 27. A torsion spring is provided at the hinge. The other end of the lifting claw 28 is relatively arranged and fixedly connected with a magnetically attracted electromagnet 29. A switch for turning on and off the power to the electromagnet 29 is installed on the frame 1.

[0039] Initially, the storage platform 14 is located in the storage bin 17, and the storage bin 17 serves as a protective cover to protect against dust. When the storage platform 14 needs to be used, the hydraulic cylinder 20 is started, and the hydraulic cylinder 20 drives the storage platform 14 to slide leftward on the slide rail 18 out of the storage bin 17. When the storage platform 14 completely slides out of the storage bin 17, it will contact and abut against the limit block 19, and the limit block 19 limits the storage platform 14 to prevent it from falling from the slide rail 18. After the storage platform 14 slides out of the storage bin 17, the prefabricated components can be stored on the storage platform 14, and the prefabricated components in the storage platform 14 can also be hoisted to the installation position.

[0040] In the process of placing the prefabricated components on the storage platform 14, the prefabricated components are lifted to the storage platform 14 by the lifting device, and the prefabricated components are slowly placed on the bottom carrier block 22 between the side clamping blocks 23. As the prefabricated components contact the bottom carrier block 22, the bottom carrier block 22 will be pushed downward by its own gravity, and the bottom carrier block 22 will drive the longitudinal slide bar 25 to slide downward, so that the volume of the cavity 24 is reduced and the air pressure is increased, and then the transverse slide bar 26 slides out of the cavity 24, and the transverse slide bar 26 drives the side clamping blocks 23 to move toward the prefabricated components until the side clamping blocks 23 press the prefabricated components tightly. When the prefabricated components need to be taken out from the storage platform 14, the prefabricated components are fixed by the lifting device, and then the prefabricated components are lifted. As the prefabricated component continues to move upward, the prefabricated component will be separated from the bottom plate carrier block, and the bottom plate carrier block will lose the force from the prefabricated component, which will drive the longitudinal slide bar 25 to slide upward and reset under the action of the air pressure. At the same time, the transverse slide bar 26 will also drive the side clamp block 23 to slide and reset in the direction away from the prefabricated component, thereby releasing the fixation of the prefabricated component and completing the automatic lifting of the prefabricated component. The prefabricated component's own gravity is used to drive the fastening mechanism, change the air pressure in the cavity 24, and fix the prefabricated component, which saves time, effort, and is stable, ensuring the efficiency and effect of the entire lifting work.

[0041] When the lifting device is lifting the prefabricated component, the switch is turned on, and the electromagnet 29 is energized through the switch control. The electromagnets 29 will attract each other, so that the free ends of the two lifting claws 28 merge, and the torsion spring will deform and store force, thereby fixing the prefabricated component, and then the lifting main board 27 is lifted by the lifting gravity rope 8. The lifting main board 27 plays the role of a carrier, supporting the lifting claws 28, so that it can be more stable during the lifting process. When it is necessary to place and install the prefabricated component, the switch is turned off, and the electromagnet 29 is de-energized through the switch control. The lifting claws 28 are reset and separated under the action of the torsion spring, and the fixation of the prefabricated component is released, thereby achieving the effect of automatically loosening the prefabricated component and improving the efficiency of the trolley.

[0042] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention. These should also be regarded as the scope of protection of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A trolley for lifting and moving large prefabricated components, comprising a frame and wheels, wherein the wheels are mounted at the bottom of the frame, and characterized in that: A driving device, a moving device and a lifting device are provided on the frame. The driving device is used to drive the wheels to rotate, and the moving device is used to drive the lifting device to move on the frame. The lifting device includes a lifting gravity rope, a power part for driving the lifting gravity rope to extend and retract, and a lifting hook assembly. The frame is also provided with a storage platform for storing large prefabricated components. The storage platform is located below the lifting device. A plurality of partitions are provided on the storage platform, and the space between two adjacent partitions is used to place large prefabricated components.

2. The trolley for lifting and moving large prefabricated components according to claim 1 is characterized in that: A fastening mechanism is provided in the space between the two adjacent partitions, and the fastening mechanism includes a fastening concave plate, a bottom carrier block and at least one pair of oppositely arranged side clamping blocks. A cavity is provided in the fastening concave plate, a vertically arranged longitudinal sliding rod is connected between the bottom carrier block and the fastening concave plate, one end of the longitudinal sliding rod is fixedly connected to the bottom carrier block, and the other end of the longitudinal sliding rod is sealed and slidably connected in the cavity, a horizontally arranged transverse sliding rod is connected between the side clamping block and the fastening concave plate, one end of the transverse sliding rod is fixedly connected to the side clamping block, and the other end of the transverse sliding rod is sealed and slidably connected in the cavity.

3. The trolley for lifting and moving large prefabricated components according to claim 2 is characterized in that: The fastening mechanism comprises two pairs of side clamping blocks arranged opposite to each other, which are used to fix the four side surfaces of the large prefabricated component, namely, the front, back, left, and right.

4. The trolley for lifting and moving large prefabricated components according to claim 3 is characterized in that: The top of the side clamp block is arranged in a downwardly inclined wedge shape.

5. The trolley for lifting and moving large prefabricated components according to claim 4 is characterized in that: The storage platform is slidably connected to the vehicle frame, a storage bin is provided on the vehicle frame, and the storage platform enters the storage bin by sliding.

6. A trolley for lifting and moving large prefabricated components according to claim 5, characterized in that: The frame is provided with a counterweight assembly, which is arranged opposite to the storage platform.

7. The trolley for lifting and moving large prefabricated components according to claim 6 is characterized in that: The moving device comprises a ball screw and a power part 2 for driving the ball screw, the ball screw is rotatably connected to the vehicle frame, a carrier plate is fixedly connected to the nut of the ball screw, and the lifting device is arranged on the carrier plate.

8. The trolley for lifting and moving large prefabricated components according to claim 7, characterized in that: The carrier plate is rotatably connected with a guide wheel and a conductor roller, the conductor roller is provided with a circumferential groove, the lifting gravity rope is wound around the guide wheel and one end of the rope is fixed on the conductor roller and wound in the groove.

9. The trolley for lifting and moving large prefabricated components according to claim 8, characterized in that: The lifting hook assembly is a lifting hook, and the lifting hook is fixedly connected to the lifting gravity rope.

10. The trolley for lifting and moving large prefabricated components according to claim 8, characterized in that: The lifting hook assembly includes a lifting main board and two lifting claws arranged in an arc shape. The lifting main board is fixed on the lifting gravity rope. One end of the lifting claw is hinged to the lifting main board. A torsion spring is provided at the hinge. The other end of the lifting claw is relatively arranged and fixedly connected with an electromagnet that attracts magnetically.

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