Hoisting device for large-span laminated slab in prefabricated building

Abstract

The utility model discloses a hoisting device for a large-span laminated slab in a prefabricated building, which comprises a hoisting frame, a second rope buckle is mounted at one end of the bottom of the hoisting frame, a reel is mounted at the other end of the bottom of the hoisting frame, and the reel is driven by a driving component. A plurality of fixed pulleys installed on the lifting frame are arranged between the second rope buckle and the reel, a movable pulley is arranged between every two adjacent fixed pulleys, the bottom of each movable pulley is connected with a lifting hook assembly, a lifting rope is connected to a winding roller in the reel, and the other end of the lifting rope sequentially penetrates through the fixed pulleys and the movable pulleys and then is connected to the second rope buckle; a locking assembly is installed on the top of the end, close to the reel, of the lifting frame. According to the utility model, the end part of the lifting rope is firstly fixed through the locking assembly, the working pressure of the servo motor is reduced, safety accidents caused by loosening of the lifting rope due to failure of the servo motor during lifting are prevented, and the lifting hook can be sealed through the arc-shaped sealing rod, so that the safety accidents are further prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting devices, in particular to a hoisting device for a large-span composite plate in a prefabricated assembled building. Background Art

[0002] In the prior art, the Chinese utility model patent application publication specification with patent number 202322638094.2 discloses a composite plate lifting device, including a parallel beam, a pair of second rope buckles are fixedly connected to the lower end of the parallel beam, a rope winding assembly matching the second rope buckle is fixedly connected to the parallel beam, a plurality of fixed pulleys are installed between the parallel beam and the rope winding assembly, a first rope is connected between the second rope buckle and the rope winding assembly, a plurality of movable pulleys are arranged on the first rope, and a driving assembly for driving the rope winding assembly is installed at the upper end of the parallel beam.

[0003] However, the hoisting device in the above patent ensures that the length of the first rope does not change completely by stopping the motor after lifting the composite plate, which will cause the motor to be under excessive pressure and be easily affected by external factors, resulting in the length of the first rope cannot be fixed, seriously affecting the hoisting effect, and even causing serious safety accidents. Utility Model Content

[0004] The utility model aims to provide a hoisting device for large-span composite panels in prefabricated assembled buildings to solve the above-mentioned problems.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model discloses a hoisting device for a large-span composite plate in a prefabricated assembled building, comprising a hoisting frame, a plurality of first rope buckles are connected to the top of the hoisting frame, two symmetrically arranged second rope buckles are installed on one end of the bottom of the hoisting frame, two symmetrically arranged reels are installed on the other end of the bottom of the hoisting frame, the two reels are driven by a driving component, the driving component is installed on the hoisting frame, a plurality of fixed pulleys installed on the hoisting frame are arranged between the second rope buckle and the reel, a movable pulley is arranged between two adjacent fixed pulleys, and a hook assembly is connected to the bottom of the movable pulley A lifting rope is connected to the winding roller in the reel, and the other end of the lifting rope passes through each fixed pulley and a movable pulley in turn and is connected to the second rope buckle; a locking assembly is installed on the top of the lifting frame close to one end of the reel, and the locking assembly includes an electric telescopic rod installed on the top of the lifting frame, and the telescopic end of the electric telescopic rod is placed in a groove opened on the top surface of the lifting frame, and two through holes are opened at the bottom of the groove, and a U-shaped rod is provided below the through hole, and both ends of the U-shaped rod pass through the through holes and are connected to the telescopic end of the electric telescopic rod, and the lifting rope passes through the U-shaped rod.

[0007] Furthermore, the driving assembly includes a connected servo motor and a dual-axis reducer, the dual-axis reducer is fixed to the bottom of the hanging frame, and the two output shafts of the dual-axis reducer are respectively connected to the reel and control the rotation of the reel roller in the reel.

[0008] Furthermore, the hook assembly includes a connecting piece and a hook, the hook is installed at the bottom of the movable pulley through the connecting piece, a slot is provided on the hook, an arc-shaped sealing rod is inserted into the slot, and the bottom of the arc-shaped sealing rod and the bottom of the slot are connected by a spring.

[0009] Furthermore, two symmetrically arranged inclined surfaces are provided on the end of the arc-shaped sealing rod which is placed outside.

[0010] Furthermore, four fixed pulleys installed on the hanging frame are provided between the second rope buckle and the reel.

[0011] Furthermore, an anti-slip layer is provided on the rod body of the U-shaped rod and on the bottom surface of the hanging frame corresponding to the position of the U-shaped rod.

[0012] Compared with the prior art, the beneficial technical effects of the utility model are:

[0013] The utility model first fixes the end of the lifting rope through the locking component, reduces the working pressure of the servo motor, and prevents the safety accidents caused by the loosening of the lifting rope due to the failure of the servo motor during lifting. The hook can also be sealed by the arc-shaped sealing rod to further prevent the safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 This is a front view of a hoisting device for a large-span composite slab in a prefabricated assembled building of the utility model;

[0016] Figure 2 This is a schematic diagram for installing the drive assembly;

[0017] Figure 3 Install a cutaway view for the locking assembly;

[0018] Figure 4 It is the cross-sectional view of the hook;

[0019] Explanation of the accompanying drawings: 1. lifting frame; 2. first rope buckle; 3. second rope buckle; 4. reel; 5. lifting rope; 6. fixed pulley; 7. movable pulley; 8. servo motor; 9. double-axis reducer; 10. connecting piece; 11. hook; 12. slot; 13. arc-shaped sealing rod; 14. spring; 15. electric telescopic rod; 16. groove; 17. through hole; 18. U-shaped rod; 19. anti-slip layer. DETAILED DESCRIPTION

[0020] like Figure 1-4 As shown, a hoisting device for a large-span composite panel in a prefabricated assembled building includes a hoisting frame 1, and a plurality of first rope buckles 2 are connected to the top of the hoisting frame 1.

[0021] Two symmetrically arranged second rope buckles 3 are installed on one end of the bottom of the hanging frame 1, and two symmetrically arranged reels 4 are installed on the other end of the bottom of the hanging frame 1. The two reels 4 are driven by a driving component, and the driving component is installed on the hanging frame 1. The driving component includes a connected servo motor 8 and a double-axis reducer 9. The double-axis reducer 9 is fixed to the bottom of the hanging frame 1, and the two output shafts of the double-axis reducer 9 are respectively connected to the reels 4 and control the rotation of the winding rollers in the reels 4.

[0022] Four fixed pulleys 6 installed on the lifting frame 1 are provided between the second rope buckle 3 and the reel 4, and a movable pulley 7 is provided between two adjacent fixed pulleys 6. A hook assembly is connected to the bottom of the movable pulley 7, and the hook assembly includes a connecting piece 10 and a hook 11. The hook 11 is installed on the bottom of the movable pulley 7 through the connecting piece 10. A slot 12 is provided on the hook 11, and an arc-shaped sealing rod 13 is inserted into the slot 12. The bottom of the arc-shaped sealing rod 13 and the bottom of the slot 12 are connected by a spring 14. Two symmetrically arranged inclined surfaces are provided on the end of the arc-shaped sealing rod 13 placed on the outside. The inclined surfaces are provided to facilitate opening during lifting or unloading.

[0023] A sling rope 5 is connected to the reel in the reel 4 , and the other end of the sling rope 5 passes through each fixed pulley 6 and movable pulley 7 in sequence and is connected to the second rope buckle 3 .

[0024] A locking assembly is installed on the top of the hanging frame 1 close to one end of the reel 4, and the locking assembly includes an electric telescopic rod 15 installed on the top of the hanging frame 1, and the telescopic end of the electric telescopic rod 15 is placed in a groove 16 opened on the top surface of the hanging frame 1, and two through holes 17 are opened at the bottom of the groove 16. A U-shaped rod 18 is provided below the through hole 17, and both ends of the U-shaped rod 18 pass through the through hole 17 and are connected to the telescopic end of the electric telescopic rod 15, and the lifting rope 5 passes through the U-shaped rod 18.

[0025] An anti-slip layer 19 is provided on the rod body of the U-shaped rod 18 and on the bottom surface of the hanging frame 1 corresponding to the position of the U-shaped rod 18 .

[0026] When the servo motor 8 stops rotating, the telescopic end of the electric telescopic rod 15 retracts, so that the U-shaped rod 18 pulls the suspension rope 5 upward, until the U-shaped rod 18 and the two anti-skid layers 19 on the suspension frame 1 firmly clamp the suspension rope 5 to prevent it from running away.

[0027] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A hoisting device for large-span composite panels in prefabricated and assembled buildings, characterized in that: The invention comprises a hanging frame (1), wherein a plurality of first rope buckles (2) are connected to the top of the hanging frame (1), two symmetrically arranged second rope buckles (3) are installed on one end of the bottom of the hanging frame (1), and two symmetrically arranged reels (4) are installed on the other end of the bottom of the hanging frame (1), the two reels (4) are driven by a driving component, and the driving component is installed on the hanging frame (1), and a plurality of fixed pulleys (6) installed on the hanging frame (1) are arranged between the second rope buckle (3) and the reel (4), and a movable pulley (7) is arranged between two adjacent fixed pulleys (6), and a hook assembly is connected to the bottom of the movable pulley (7), and a hanging rope (5) is connected to the reel in the reel (4), and the hanging rope (5) is connected to the reel in the reel (4). ) passes through each fixed pulley (6) and movable pulley (7) in sequence and is then connected to the second rope buckle (3); a locking assembly is installed on the top of the hoisting frame (1) close to one end of the reel (4), and the locking assembly comprises an electric telescopic rod (15) installed on the top of the hoisting frame (1), the telescopic end of the electric telescopic rod (15) is placed in a groove (16) provided on the top surface of the hoisting frame (1), two through holes (17) are provided at the bottom of the groove (16), a U-shaped rod (18) is provided below the through hole (17), both ends of the U-shaped rod (18) pass through the through hole (17) and are then connected to the telescopic end of the electric telescopic rod (15), and the hoisting rope (5) passes through the U-shaped rod (18).

2. The hoisting device for large-span composite panels in prefabricated and assembled buildings according to claim 1 is characterized in that: The driving assembly comprises a servo motor (8) and a double-axis reducer (9) connected to each other. The double-axis reducer (9) is fixed to the bottom of the hanging frame (1). The two output shafts of the double-axis reducer (9) are respectively connected to the reel (4) and control the rotation of the reel inside the reel (4).

3. The hoisting device for large-span composite panels in prefabricated and assembled buildings according to claim 1 is characterized in that: The hook assembly comprises a connecting piece (10) and a hook (11); the hook (11) is installed at the bottom of the movable pulley (7) through the connecting piece (10); a slot (12) is provided on the hook (11); an arc-shaped sealing rod (13) is inserted into the slot (12); the bottom of the arc-shaped sealing rod (13) and the bottom of the slot (12) are connected via a spring (14).

4. The hoisting device for large-span composite panels in prefabricated and assembled buildings according to claim 3 is characterized in that: The end of the arc-shaped sealing rod (13) placed outside is provided with two symmetrically arranged inclined surfaces.

5. The hoisting device for large-span composite panels in prefabricated and assembled buildings according to claim 1 is characterized in that: Four fixed pulleys (6) mounted on the hanging frame (1) are provided between the second rope buckle (3) and the reel (4).

6. The hoisting device for large-span composite panels in prefabricated and assembled buildings according to claim 1 is characterized in that: An anti-slip layer (19) is provided on the rod body of the U-shaped rod (18) and on the bottom surface of the hanging frame (1) corresponding to the position of the U-shaped rod (18).

Images