Prefabricated concrete floor slab hoisting equipment and construction method

Abstract

The invention discloses prefabricated concrete floor slab hoisting equipment and a construction method, and belongs to the technical field of concrete floor slab installation. Comprising a moving assembly, a telescopic pull rod is connected to the outer side surface of the moving assembly, and after the midpoint line of a clamped and fixed concrete floor is aligned with the midpoint line of the installed concrete floor, an electric telescopic rod is started to drive a first base and a second base to move towards the walls of the two ends of a room till the concrete floor is installed; when a mounting gap generated after the concrete floor slab is mounted is insufficient for a space required by the hoisting device for continuing mounting operation, a fourth driving motor is started, and a second circular rotating block and a third circular rotating block rotate in opposite directions, so that the concrete floor slab is aligned with the space required to be mounted for mounting operation; in this way, the hoisting device can have two working states, so that the hoisting device can adapt to various installation scenes, the time needed for calibration of workers is shortened, and the installation efficiency of the concrete floor is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete floor installation, and more specifically, to a hoisting device and construction method for prefabricated concrete floors. Background Art

[0002] A concrete floor is a structural layer made by pouring concrete and adding steel bars or other reinforcing materials, mainly used to support the weight of a building and transfer loads. Currently, when hoisting a concrete floor, one end of the concrete floor is fixed first, and then the concrete floor is hoisted by the rising of a towing rope. However, during the hoisting process of the concrete floor, the concrete floor will sway left and right, causing the towing rope to sway, and then causing the concrete floor to separate from the fixing plate and the concrete floor to slip. This may cause the impact force received during the slipping process of the concrete floor to be too strong, resulting in the concrete floor cracking, thereby reducing the utilization rate of the concrete floor and the installation efficiency of the concrete floor. Moreover, after the hoisting device lifts the concrete floor, it is also necessary for workers to move, correct, and adjust the installation of the concrete floor, which not only increases the installation time of the concrete floor but also reduces the installation efficiency of the concrete floor. Summary of the Invention

[0003] The purpose of the present invention is to provide a hoisting device and construction method for prefabricated concrete floors to solve the problems raised in the above background art.

[0004] A hoisting device for prefabricated concrete floors includes a moving component. The outer surface of the moving component is connected with a telescopic pull rod, and a rotating component is connected in the inner cavity of the moving component. One side of the upper end of the rotating component is connected with a first hoisting component, and the other side of the upper end of the rotating component is connected with a second hoisting component. Connection grooves are provided on the front and rear surfaces of the moving component, and the telescopic pull rod is slidably connected to the moving component through the connection grooves. When the telescopic pull rod moves upward, it can be separated from the moving component. The first hoisting component includes a rectangular frame body. A hoisting mechanism is connected in the inner cavity of the rectangular frame body. One end surface of the hoisting mechanism away from the rectangular frame body is connected with a clamping component. A first controller is connected to the inner wall of one end of the rectangular frame body, and a first rectangular sliding groove is provided on the inner wall surface of one end of the rectangular frame body. The rotating component includes a fourth driving motor. The output end of the fourth driving motor is connected with a first rotating shaft. The upper end of the first rotating shaft is connected with a second circular rotating block. One end of the second circular rotating block close to the second hoisting component is connected with a third circular rotating block.

[0005] Preferably, the lifting mechanism includes a first driving motor, the output end of the first driving motor is connected to a first threaded rod, the upper surface of the first threaded rod is sleeved with a rectangular sliding block, and one end inner cavity of the rectangular sliding block is connected with a first circular rotating block.

[0006] Preferably, one end of the first circular rotating block close to the first driving motor is connected with a second driving motor, and one end surface of the rectangular sliding block facing the first controller is connected with a rectangular trigger block, and the first circular rotating block is rotatably connected with the rectangular sliding block.

[0007] Preferably, the clamping assembly includes a third driving motor, the output end of the third driving motor is sleeved with a first rotating belt, and both ends of the first rotating belt are sleeved with a bidirectional threaded rod.

[0008] Preferably, the upper and lower outer sides of the bidirectional threaded rod are sleeved with first sliders, the outer sides of the first sliders are connected with rectangular connecting blocks, the front two side surfaces of the rectangular connecting blocks are provided with second rectangular chutes, and one end surface of each first slider away from the rectangular connecting block is connected with a rectangular clamping plate, and the bidirectional threaded rod is installed in the inner cavity of the second rectangular chute, and one end surface of the rectangular connecting block close to the lifting mechanism is fixed on the outer surface of the first circular rotating block. When the third driving motor drives the first rotating belt to rotate, it will drive the bidirectional threaded rod to rotate, thereby driving the first sliders to move along the second rectangular chute towards the middle part of the bidirectional threaded rod, and further driving the rectangular clamping plates to move towards the middle part of the bidirectional threaded rod until the surfaces of the rectangular clamping plates contact the surface of the concrete floor slab. At this time, the midpoint line on the outer surface of the rectangular clamping plate and the center point of the first circular rotating block are in the same plane.

[0009] Preferably, a first gear is sleeved on the outer surface of the first rotating shaft, a ring gear is sleeved on the outer surface of the first gear, a second gear is sleeved on one end of the ring gear away from the second circular rotating block, a third gear is connected to the lower end of the second gear, and the first lifting assembly is installed on the upper surface of the second circular rotating block.

[0010] Preferably, one end of the third gear meshes with a fourth gear, the inner cavity of the fourth gear is connected with a second rotating shaft, the upper end of the second rotating shaft is connected with a ring-shaped connecting block, a pawl is connected to the inner side of the ring-shaped connecting block, and a ratchet wheel is connected in the inner cavity of the ring-shaped connecting block, and the upper surface of the ratchet wheel is connected with the lower surface of the third circular rotating block. The ring-shaped connecting block is connected with the second rotating shaft, and the second lifting assembly is installed on the upper surface of the third circular rotating block.

[0011] Preferably, the moving component includes a first base. Electric telescopic rods are connected in the inner cavities at both ends of the first base. One end of the electric telescopic rod away from the first base is connected to a second base. Moving mechanisms are connected to both sides of the lower end of the first base and both sides of the lower end of the second base. Circular holes are provided on the upper surfaces of the first base and the second base. A first lifting component is connected to the upper end of the first base, and a second lifting component is connected to the upper end of the second base.

[0012] Preferably, the first rotating shaft, the second circular rotating block, the first gear, the annular rack, the second gear, and the third gear together form a first rotating mechanism. The fourth gear, the second rotating shaft, the annular connecting block, the pawl, the ratchet, and the third circular rotating block together form a second rotating mechanism. The first rotating mechanism is installed in the inner cavity of the first base, and the second rotating mechanism is installed in the inner cavity of the second base. The second circular rotating block is installed in the circular hole provided on the upper surface of the first base, and the third circular rotating block is installed in the circular hole provided on the upper surface of the second base.

[0013] Preferably, a construction method of a prefabricated assembled concrete floor slab lifting device includes the following steps: S1. First, control the moving mechanism through the console, drive the lifting device to move to the position of the horizontally placed concrete floor slab that needs to be installed, align the rectangular clamping plate with the middle part of the horizontally placed concrete floor slab, and then start the electric telescopic rod to extend, thereby driving the first base and the second base to move towards the horizontally placed concrete floor slab, and further driving the outer surfaces of the rectangular connecting blocks in the first lifting component and the rectangular connecting blocks in the second lifting component to contact the horizontally placed concrete floor slab. At this time, start the third driving motor and drive the first rotating belt to rotate, thereby driving the bidirectional threaded rod to rotate, and further driving the first sliders sleeved on the upper and lower ends of the bidirectional threaded rod to move along the second rectangular chute towards the middle part of the rectangular connecting block until the rectangular clamping plate contacts the surface of the concrete floor slab, so as to clamp and fix the concrete floor slab. S2. After the concrete floor slab is clamped and fixed, start the electric telescopic rod to make the first base and the second base return to their original positions, and then start the first driving motor to drive the first threaded rod to rotate, thereby driving the rectangular sliding block and the rectangular trigger block to move upward along the first threaded rod until the rectangular trigger block coincides with the trigger groove provided at the lower end of the first controller. At this time, the first controller will start the second driving motor, thereby driving the first circular rotating block to rotate 90 degrees, further driving the clamping component to rotate 90 degrees, and finally driving the concrete floor slab to rotate 90 degrees to make the concrete floor slab in a vertical state. At this time, the height of the bottom end of the concrete floor slab from the ground is 1 - 2 cm. Then, control the lifting device to move to the position for installing the concrete floor slab through the console, and align the midpoint line of the clamped and fixed concrete floor slab with the midpoint line of the concrete floor slab to be installed. S3. When the midpoint line of the clamped concrete slab is aligned with the midpoint line of the installed concrete slab, the electric telescopic rod is started to drive the first base and the second base to move toward the two end walls of the room until one end of the concrete slab contacts the wall surface of the concrete slab, and then the lifting device is restored to its original position, and the operation is performed in sequence until the installed concrete slab is close to the surface of the lifting device. At this time, when the lifting device clamps and fixes the vertical concrete slab and moves to the installation position, the fourth drive motor is started to rotate, and the first rotating shaft is driven to rotate, thereby driving the second circular rotating block to rotate, and then driving the first gear to rotate. As the first gear rotates, the annular rack is driven to rotate, thereby driving the second gear to rotate, and then driving the third gear to rotate. The rotation of the third gear will drive the fourth gear to rotate, and the third gear and the fourth gear are allowed to rotate in opposite directions, thereby driving the second rotating shaft to rotate, and then driving the annular connecting block and the ratchet to rotate, and the rotation of the ratchet will drive the ratchet to rotate, thereby driving the third circular rotating block to rotate; S4. As the third gear and the fourth gear rotate in opposite directions, the second circular rotating block and the third circular rotating block are driven to rotate in opposite directions, so that the first lifting assembly and the second lifting assembly rotate in opposite directions and rotate ninety degrees, so that the concrete floor slab is aligned with the position where it needs to be installed. After the concrete floor slab is installed in the position where it needs to be installed, the lifting device is restored to its original position, and then fine-tuning is performed manually until the installed concrete floor slab forms a soundproof wall, and all operations are terminated at this point.

[0014] Compared with the prior art, the advantages of the present invention are: 1. In the present invention, after the midpoint line of the clamped concrete floor is aligned with the midpoint line of the installed concrete floor, the electric telescopic rod is started to drive the first base and the second base to move toward the two end walls of the room until the concrete floor is installed. When the installation gap generated after the concrete floor is installed is insufficient for the space required for the lifting device to continue the installation operation, the fourth drive motor is started and the second circular rotating block and the third circular rotating block are rotated towards each other, so that the concrete floor is aligned with the required installation space for installation operation. In this way, the lifting device can have two working states, so that the lifting device can adapt to a variety of installation scenarios, thereby reducing the time required for calibration by the staff and improving the installation efficiency of the concrete floor. At the same time, the concrete floor is fixed by mechanical force to avoid the concrete floor from falling off and improve the utilization rate of the concrete floor.

[0015] 2. In the present invention, by starting the second drive motor to drive the first circular rotating block to rotate by 90 degrees, the concrete floor slab is driven to rotate by 90 degrees. Then, the lifting and transporting device is moved, and after the midpoint line of the clamped and fixed concrete floor slab is aligned with the midpoint line for installing the concrete floor slab, the electric telescopic rod is started to drive the first base and the second base to move towards the two end walls of the room until the installation of the concrete floor slab is completed. In this way, the two sides of the clamped concrete floor slab will keep the two ends of the lifting and transporting device in a state of the same mass all the time, improving the stability of the lifting and transporting device. At the same time, this device can install two concrete floor slabs simultaneously, thus reducing the time required for installing the concrete floor slab and further improving the installation efficiency of the concrete floor slab.

[0016] 3. In the present invention, when the fourth drive motor rotates, it will drive the second circular rotating block and the third circular rotating block to rotate towards each other, so that the first lifting and transporting component and the second lifting and transporting component rotate towards each other. If the fourth drive motor rotates in reverse, the second circular rotating block rotates while the position of the third circular rotating block remains unchanged. In this way, by controlling the forward and reverse rotation of the fourth drive motor, the working form of the lifting and transporting device can be changed, and further the working scenarios of the lifting and transporting device can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 is a schematic diagram of the internal structure of the present invention.

[0019] Figure 3 is a schematic diagram of the structure of the first lifting and transporting component of the present invention.

[0020] Figure 4 is a schematic diagram of the structure of the lifting and transporting mechanism of the present invention.

[0021] Figure 5 is a schematic diagram of the structure of the clamping component of the present invention.

[0022] Figure 6 is a schematic diagram of the internal structure of the clamping component of the present invention.

[0023] Figure 7 is a schematic diagram of the structure of the rotating component of the present invention.

[0024] Figure 8 is a front view schematic diagram of the rotating component of the present invention.

[0025] Figure 9 is a schematic diagram of the structure of the moving component of the present invention.

[0026] Figure 10 is a schematic diagram of the structure of the first working state of the present invention.

[0027] Figure 11Schematic structural diagram of the second working state of the present invention.

[0028] Description of reference numerals in the figure: 1. Moving component; 101. First base; 102. Electric telescopic rod; 103. Second base; 104. Moving mechanism; 2. Telescopic pull rod; 3. Rotating component; 301. Fourth driving motor; 302. First rotating shaft; 303. Second circular rotating block; 304. First gear; 305. Ring rack; 306. Second gear; 307. Third gear; 308. Fourth gear; 309. Second rotating shaft; 310. Ring connecting block; 311. Pawl; 312. Ratchet; 313. Third circular rotating block; 4. First hoisting component; 401. Rectangular frame; 402. Hoisting mechanism; 403. Clamping component; 404. First controller; 405. First driving motor; 406. First threaded rod; 407. Rectangular sliding block; 408. First circular rotating block; 409. Second driving motor; 410. Rectangular trigger block; 411. Third driving motor; 412. First rotating belt; 413. Bidirectional threaded rod; 414. First slider; 415. Rectangular connecting block; 416. Second rectangular chute; 417. Rectangular clamping plate; 5. Second hoisting component. Detailed implementation manners

[0029] Embodiment: Please refer to Figure 1 and Figure 2 A prefabricated and assembled concrete floor slab hoisting device, including a moving component 1, a telescopic pull rod 2 is connected to the outer surface of the moving component 1, and a rotating component 3 is connected to the inner cavity of the moving component 1. One side of the upper end of the rotating component 3 is connected with a first hoisting component 4, and the other side of the upper end of the rotating component 3 is connected with a second hoisting component 5. Connection grooves are formed on the front and rear surfaces of the moving component 1, and the telescopic pull rod 2 is slidably connected to the moving component 1 through the connection grooves. When the telescopic pull rod 2 moves upward, it can be separated from the moving component 1; Please refer to Figure 3 The first hoisting component 4 includes a rectangular frame 401, a hoisting mechanism 402 is connected to the inner cavity of the rectangular frame 401, a clamping component 403 is connected to the end surface of the hoisting mechanism 402 away from the rectangular frame 401, a first controller 404 is connected to the inner wall of one end of the rectangular frame 401, and a first rectangular chute is formed on the inner wall surface of one end of the rectangular frame 401. The components of the second hoisting component 5 are the same as those of the first hoisting component 4; Please refer to Figure 7 and Figure 8, the rotating assembly 3 includes a fourth driving motor 301. The output end of the fourth driving motor 301 is connected to a first rotating shaft 302. The upper end of the first rotating shaft 302 is connected to a second circular rotating block 303. One end of the second circular rotating block 303 close to the second hoisting assembly 5 is connected to a third circular rotating block 313.

[0030] Specifically, after the midpoint line of the concrete floor slab after being clamped and fixed is aligned with the midpoint line of the installed concrete floor slab, start the electric telescopic rod 102 to drive the first base 101 and the second base 103 to move towards the two end walls of the room. Until after the installation of the concrete floor slab is completed, when the installation gap generated after the installation of the concrete floor slab is insufficient for the space required for the hoisting device to continue the installation operation, start the fourth driving motor 301 and let the second circular rotating block 303 and the third circular rotating block 313 rotate towards each other, so that the concrete floor slab is aligned with the space to be installed for the installation operation. In this way, the hoisting device can have two working states, so that the hoisting device can adapt to a variety of installation scenarios, thereby reducing the time required for the staff to calibrate and improving the installation efficiency of the concrete floor slab. At the same time, the concrete floor slab is fixed by mechanical force to avoid the concrete floor slab from falling off and improve the utilization rate of the concrete floor slab.

[0031] Please refer to Figure 4 , the hoisting mechanism 402 includes a first driving motor 405. The output end of the first driving motor 405 is connected to a first threaded rod 406. The upper end surface of the first threaded rod 406 is sleeved with a rectangular sliding block 407. One end inner cavity of the rectangular sliding block 407 is connected to a first circular rotating block 408.

[0032] Please refer to Figure 4 , one end of the first circular rotating block 408 close to the first driving motor 405 is connected to a second driving motor 409. And one end surface of the rectangular sliding block 407 facing the first controller 404 is connected to a rectangular trigger block 410. And the first circular rotating block 408 is rotationally connected to the rectangular sliding block 407. When the rectangular trigger block 410 coincides with the trigger groove opened at the lower end of the first controller 404, the rectangular sliding block 407 will move to the uppermost end of the rectangular frame 401.

[0033] Please refer to Figure 5 and Figure 6 , the clamping assembly 403 includes a third driving motor 411. The output end of the third driving motor 411 is sleeved with a first rotating belt 412. Both ends of the first rotating belt 412 are sleeved with a bidirectional threaded rod 413.

[0034] Please refer to Figure 5 and Figure 6, on the outer sides of the upper and lower ends of the bidirectional threaded rod 413, first sliders 414 are sleeved. On the outer sides of the first sliders 414, rectangular connecting blocks 415 are connected. On the two side surfaces at the front end of the rectangular connecting block 415, second rectangular sliding grooves 416 are provided, and on the surface of each first slider 414 away from the rectangular connecting block 415, a rectangular clamping plate 417 is connected. And the bidirectional threaded rod 413 is installed in the inner cavity of the second rectangular sliding groove 416. And one end surface of the rectangular connecting block 415 close to the hoisting mechanism 402 is fixed on the outer surface of the first circular rotating block 408. When the third driving motor 411 drives the first rotating belt 412 to rotate, it will drive the bidirectional threaded rod 413 to rotate, thereby driving the first slider 414 to move along the second rectangular sliding groove 416 towards the middle part of the bidirectional threaded rod 413, and further driving the rectangular clamping plate 417 to move towards the middle part of the bidirectional threaded rod 413 until the surface of the rectangular clamping plate 417 contacts the surface of the concrete floor slab. At this time, the midpoint line on the outer surface of the rectangular clamping plate 417 and the center point of the first circular rotating block 408 are in the same plane.

[0035] Please refer to Figure 7 and Figure 8 , on the outer surface of the first rotating shaft 302, a first gear 304 is sleeved. On the outer surface of the first gear 304, an annular rack 305 is sleeved. At one end of the annular rack 305 away from the second circular rotating block 303, a second gear 306 is sleeved. At the lower end of the second gear 306, a third gear 307 is connected. And the first hoisting assembly 4 is installed on the upper surface of the second circular rotating block 303.

[0036] Please refer to Figure 7 and Figure 8 , one end of the third gear 307 meshes with a fourth gear 308. The inner cavity of the fourth gear 308 is connected with a second rotating shaft 309. The upper end of the second rotating shaft 309 is connected with an annular connecting block 310. On the inner side of the annular connecting block 310, a pawl 311 is connected. And in the inner cavity of the annular connecting block 310, a ratchet 312 is connected. And the upper surface of the ratchet 312 is connected with the lower surface of the third circular rotating block 313. The annular connecting block 310 is connected with the second rotating shaft 309. The second hoisting assembly 5 is installed on the upper surface of the third circular rotating block 313.

[0037] Specifically, by rotating the fourth driving motor 301, it will drive the second circular rotating block 303 and the third circular rotating block 313 to rotate towards each other, so that the first hoisting assembly 4 and the second hoisting assembly 5 rotate towards each other. If the fourth driving motor 301 rotates in reverse, the second circular rotating block 303 rotates, while the position of the third circular rotating block 313 remains unchanged. In this way, by controlling the forward and reverse rotation of the fourth driving motor 301, the working form of the hoisting device can be changed, and thus the working scenarios of the hoisting device can be increased.

[0038] Please refer to Figure 9 , the moving component 1 includes a first base 101. Electric telescopic rods 102 are connected to the inner cavities at both ends of the first base 101. One end of the electric telescopic rod 102 away from the first base 101 is connected to a second base 103. Moving mechanisms 104 are connected to both sides of the lower end of the first base 101 and both sides of the lower end of the second base 103. Circular holes are provided on the upper surfaces of the first base 101 and the second base 103. A first lifting component 4 is connected to the upper end of the first base 101, and a second lifting component 5 is connected to the upper end of the second base 103. The moving mechanism 104 is composed of a motor and a pulley.

[0039] The first rotating shaft 302, the second circular rotating block 303, the first gear 304, the annular rack 305, the second gear 306 and the third gear 307 together form a first rotating mechanism. The fourth gear 308, the second rotating shaft 309, the annular connecting block 310, the pawl 311, the ratchet 312 and the third circular rotating block 313 together form a second rotating mechanism. The first rotating mechanism is installed in the inner cavity of the first base 101, and the second rotating mechanism is installed in the inner cavity of the second base 103. The second circular rotating block 303 is installed in the circular hole provided on the upper surface of the first base 101, and the third circular rotating block 313 is installed in the circular hole provided on the upper surface of the second base 103. When the first base 101 and the second base 103 are separated, the first rotating mechanism and the second rotating mechanism will be separated.

[0040] Specifically, by starting the second driving motor 409 to drive the first circular rotating block 408 to rotate 90 degrees, thereby driving the concrete floor slab to rotate 90 degrees. Then move the lifting device, and after aligning the midpoint line of the clamped and fixed concrete floor slab with the midpoint line for installing the concrete floor slab, then start the electric telescopic rod 102 to drive the first base 101 and the second base 103 to move towards the two end walls of the room until the installation of the concrete floor slab is completed. In this way, the two clamped concrete floor slabs will keep both ends of the lifting device in a state of the same mass all the time, improving the stability of the lifting device. At the same time, this device can install two concrete floor slabs simultaneously, thus reducing the time required for installing the concrete floor slab and further improving the installation efficiency of the concrete floor slab.

[0041] Please refer to Figure 10 and Figure 11, A construction method for a hoisting device of a prefabricated assembled concrete floor slab, comprising the following steps: S1. First, control the moving mechanism 104 through the console, and drive the hoisting device to move to the position of the horizontally placed concrete floor slab that needs to be installed. Align the rectangular clamping plate 417 with the middle part of the horizontally placed concrete floor slab. Then, start the electric telescopic rod 102 to extend, thereby driving the first base 101 and the second base 103 to move towards the horizontally placed concrete floor slab, and further driving the outer surfaces of the rectangular connecting blocks 415 in the first hoisting assembly 4 and the rectangular connecting blocks 415 in the second hoisting assembly 5 to contact the horizontally placed concrete floor slab. At this time, start the third driving motor 411 and drive the first rotating belt 412 to rotate, thereby driving the bidirectional threaded rod 413 to rotate, and further driving the first sliders 414 sleeved on the upper and lower ends of the bidirectional threaded rod 413 to move along the second rectangular chute 416 towards the middle part of the rectangular connecting block 415 until the rectangular clamping plate 417 contacts the surface of the concrete floor slab, so as to perform the clamping and fixing operation on the concrete floor slab; S2. After the concrete floor slab is clamped and fixed, start the electric telescopic rod 102 and let the first base 101 and the second base 103 return to their original positions. Then, start the first driving motor 405 and drive the first threaded rod 406 to rotate, thereby driving the rectangular sliding block 407 and the rectangular trigger block 410 to move upward along the first threaded rod 406 until the rectangular trigger block 410 coincides with the trigger groove opened at the lower end of the first controller 404. At this time, the first controller 404 will start the second driving motor 409, thereby driving the first circular rotating block 408 to rotate 90 degrees, and further driving the clamping assembly 403 to rotate 90 degrees, and finally driving the concrete floor slab to rotate 90 degrees and making the concrete floor slab in a vertical state. At this time, the height of the bottom end of the concrete floor slab from the ground is 1 - 2 cm. Then, control the hoisting device to move to the position for installing the concrete floor slab through the console, and align the midpoint line of the clamped and fixed concrete floor slab with the midpoint line of the installed concrete floor slab; S3. When the midpoint line of the clamped concrete slab is aligned with the midpoint line of the installed concrete slab, the electric telescopic rod 102 is started to drive the first base 101 and the second base 103 to move toward the two end walls of the room until one end of the concrete slab touches the wall surface of the concrete slab, and then the lifting device is restored to its original position, and the operation is performed in sequence until the installed concrete slab approaches the surface of the lifting device. At this time, when the lifting device clamps and fixes the vertical concrete slab and moves it to the installation position, the fourth drive motor 301 is started to rotate, and the first rotating shaft 302 is driven to rotate. The second circular rotating block 303 is driven to rotate, and then the first gear 304 is driven to rotate. As the first gear 304 rotates, the annular rack 305 is driven to rotate, thereby driving the second gear 306 to rotate, and then driving the third gear 307 to rotate. The rotation of the third gear 307 drives the fourth gear 308 to rotate, and the third gear 307 and the fourth gear 308 rotate in opposite directions, thereby driving the second rotating shaft 309 to rotate, and then driving the annular connecting block 310 and the pawl 311 to rotate. The rotation of the pawl 311 drives the ratchet 312 to rotate, thereby driving the third circular rotating block 313 to rotate. S4. As the third gear 307 and the fourth gear 308 rotate towards each other, the second circular rotating block 303 and the third circular rotating block 313 will be driven to rotate towards each other, so that the first lifting assembly 4 and the second lifting assembly 5 rotate towards each other and rotate ninety degrees, so that the concrete floor slab is aligned with the position where it needs to be installed. After the concrete floor slab is installed at the position where it needs to be installed, the lifting device is restored to its original position, and then fine-tuning is performed manually until the installed concrete floor slab forms a soundproof wall, and all operations are terminated at this point.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A prefabricated and assembled concrete floor slab hoisting device, comprising a moving component (1), characterized in that: A telescopic pull rod (2) is connected to the outer surface of the moving component (1), and a rotating component (3) is connected to the inner cavity of the moving component (1). One side of the upper end of the rotating component (3) is connected to a first lifting component (4), and the other side of the upper end of the rotating component (3) is connected to a second lifting component (5); The first lifting component (4) includes a rectangular frame body (401). A lifting mechanism (402) is connected to the inner cavity of the rectangular frame body (401). A clamping component (403) is connected to the surface of the end of the lifting mechanism (402) far away from the rectangular frame body (401), and a first controller (404) is connected to the inner wall of one end of the rectangular frame body (401); The rotating component (3) includes a fourth driving motor (301). The output end of the fourth driving motor (301) is connected to a first rotating shaft (302). The upper end of the first rotating shaft (302) is connected to a second circular rotating block (303). One end of the second circular rotating block (303) close to the second lifting component (5) is connected to a third circular rotating block (313).

2. The prefabricated and assembled concrete floor slab hoisting equipment according to claim 1, characterized in that: The lifting mechanism (402) includes a first driving motor (405). The output end of the first driving motor (405) is connected to a first threaded rod (406). A rectangular sliding block (407) is sleeved on the upper surface of the first threaded rod (406). A first circular rotating block (408) is connected to the inner cavity of one end of the rectangular sliding block (407).

3. The hoisting device for prefabricated precast concrete floor slabs according to claim 2, characterized in that: One end of the first circular rotating block (408) close to the first driving motor (405) is connected to a second driving motor (409), and a rectangular trigger block (410) is connected to the surface of the end of the rectangular sliding block (407) facing the first controller (404).

4. A prefabricated and assembled concrete floor slab hoisting device according to claim 3, characterized in that: The clamping component (403) includes a third driving motor (411). The output end of the third driving motor (411) is sleeved with a first rotating belt (412). The two ends of the first rotating belt (412) are sleeved with a bidirectional threaded rod (413).

5. The hoisting equipment for prefabricated precast concrete floor slabs according to claim 4, characterized in that: The upper and lower outer sides of the bidirectional threaded rod (413) are sleeved with first sliders (414). A rectangular connecting block (415) is connected to the outside of the first sliders (414). Second rectangular sliding grooves (416) are formed on the front side surfaces of both sides of the rectangular connecting block (415), and a rectangular clamping plate (417) is connected to the surface of the end of each first slider (414) far away from the rectangular connecting block 415.

6. The hoisting equipment for prefabricated precast concrete floor slabs according to claim 5, characterized in that: A first gear (304) is sleeved on the outer surface of the first rotating shaft (302). An annular rack (305) is sleeved on the outer surface of the first gear (304). A second gear (306) is sleeved on the end of the annular rack (305) far away from the second circular rotating block (303). The lower end of the second gear (306) is connected to a third gear (307).

7. A prefabricated precast concrete floor slab hoisting device according to claim 6, characterized in that: One end of the third gear (307) meshes with a fourth gear (308). The inner cavity of the fourth gear (308) is connected to a second rotating shaft (309). The upper end of the second rotating shaft (309) is connected to an annular connecting block (310). The inner side of the annular connecting block (310) is connected to a pawl (311), and a ratchet wheel (312) is connected in the inner cavity of the annular connecting block (310).

8. The hoisting equipment for prefabricated precast concrete floor slabs according to claim 7, characterized in that: The moving assembly (1) includes a first base (101). Electric telescopic rods (102) are connected to the inner cavities at both ends of the first base (101). One end of the electric telescopic rod (102) away from the first base (101) is connected to a second base (103). Moving mechanisms (104) are connected to both sides of the lower end of the first base (101) and both sides of the lower end of the second base (103).

9. A hoisting device for prefabricated precast concrete floor slabs according to claim 8, characterized in that: The first rotating shaft (302), the second circular rotating block (303), the first gear (304), the annular rack (305), the second gear (306) and the third gear (307) together form a first rotating mechanism. The fourth gear (308), the second rotating shaft (309), the annular connecting block (310), the pawl (311), the ratchet wheel (312) and the third circular rotating block (313) together form a second rotating mechanism.

10. A construction method of a hoisting device for prefabricated precast concrete floor slabs. For a hoisting device for prefabricated precast concrete floor slabs according to claim 9, it is characterized in that, It includes the following steps: S1. First, control the moving mechanism (104) through the console, and drive the hoisting device to move to the position of the horizontally placed concrete floor where installation operations need to be carried out. Align the rectangular clamping plate (417) with the middle part of the horizontally placed concrete floor. Then, start the electric telescopic rod (102) to extend, so as to drive the first base (101) and the second base (103) to move towards the horizontally placed concrete floor, and further drive the outer surfaces of the rectangular connecting block (415) in the first hoisting assembly (4) and the rectangular connecting block (415) in the second hoisting assembly (5) to contact the horizontally placed concrete floor. At this time, start the third driving motor (411) and drive the first rotating belt (412) to rotate, so as to drive the bidirectional threaded rod (413) to rotate, and further drive the first sliders (414) sleeved on the upper and lower ends of the bidirectional threaded rod (413) to move along the second rectangular chute (416) towards the middle part of the rectangular connecting block (415) until the rectangular clamping plate (417) contacts the surface of the concrete floor, so as to clamp and fix the concrete floor. S2. After the concrete floor is clamped and fixed, the electric telescopic rod (102) is started and the first base (101) and the second base (103) are restored to their original positions. Then, the first driving motor (405) is started and the first threaded rod (406) is driven to rotate, thereby driving the rectangular sliding block (407) and the rectangular trigger block (410) to move upward along the first threaded rod (406) until the rectangular trigger block (410) coincides with the trigger groove formed at the lower end of the first controller (404). At this time, the first controller (404) is turned on. The device (404) starts the second driving motor (409), thereby driving the first circular rotating block (408) to rotate 90 degrees, and then driving the clamping assembly (403) to rotate 90 degrees, and finally driving the concrete floor slab to rotate 90 degrees, and making the concrete floor slab in a vertical state. At this time, the height of the bottom end of the concrete floor slab from the ground is 1-2CM, and then, the control console controls the lifting device to move to the position where the concrete floor slab is installed, and aligns the midpoint line of the clamped and fixed concrete floor slab with the midpoint line of the installed concrete floor slab; S3. When the midpoint line of the clamped concrete slab is aligned with the midpoint line of the installed concrete slab, the electric telescopic rod (102) is started to drive the first base (101) and the second base (103) to move toward the two end walls of the room until one end of the concrete slab contacts the wall surface of the concrete slab, and then the lifting device is restored to its original position and operated in sequence until the installed concrete slab approaches the surface of the lifting device. At this time, when the lifting device clamps and fixes the vertically placed concrete slab and moves it to the installation position, the fourth drive motor (301) is started to rotate, and the first rotating shaft (302) is driven to rotate, thereby driving the second circular rotating block (303) rotates, thereby driving the first gear (304) to rotate. As the first gear (304) rotates, the annular rack (305) is driven to rotate, thereby driving the second gear (306) to rotate, thereby driving the third gear (307) to rotate, and the rotation of the third gear (307) drives the fourth gear (308) to rotate, and the third gear (307) and the fourth gear (308) rotate in opposite directions, thereby driving the second rotating shaft (309) to rotate, and then driving the annular connecting block (310) and the ratchet (311) to rotate, and the rotation of the ratchet (311) drives the ratchet wheel (312) to rotate, thereby driving the third circular rotating block (313) to rotate; S4. As the third gear (307) and the fourth gear (308) rotate in opposite directions, the second circular rotating block (303) and the third circular rotating block (313) are driven to rotate in opposite directions, thereby causing the first lifting assembly (4) and the second lifting assembly (5) to rotate in opposite directions by ninety degrees, thereby aligning the concrete floor slab with the position where it is to be installed. After the concrete floor slab is installed in the position where it is to be installed, the lifting device is restored to its original position, and then fine-tuning is performed manually until the installed concrete floor slab forms a soundproof wall, thereby terminating all operations.

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