Concrete laminated slab hoisting device

Abstract

The utility model discloses a concrete laminated slab hoisting device, and belongs to the technical field of hoisting. Comprising a davit which can be mounted with hoisting equipment; the arm rods are hinged to the outer part of the hanging column in a staggered symmetrical structure; the steel cable penetrates through the arm rod and is fixedly connected with the davit; the expanding and supporting rod is hinged to the outer part of the arm rod; the thread sleeve seat is hinged and mounted between the two symmetrical expanding and supporting rods; and the adjusting lead screw is rotationally connected to the bottom end of the lifting column and is in threaded fit with the thread sleeve seat. According to the application, the steel cable is matched with the arm rod, so that the steel cable can stably hoist an object under the guidance of the arm rod, the hoisting use stability of the steel cable is ensured, and the arm rod is supported by the expanding rod with an angle adjusting function, so that the expanding angle of the arm rod is adjusted; and the steel cable is ensured to be attached to the concrete laminated slabs of various specifications for hoisting use.

Description

Technical Field

[0001] The present application relates to the field of hoisting technology, and more specifically, to a concrete composite slab hoisting device. Background Art

[0002] The composite slab is an assembled integral floor slab composed of prefabricated slabs and cast-in-place reinforced concrete layers. The composite slab often needs to be hoisted to the construction height by a hoisting device for construction. However, the traditional hoisting cable of the composite slab is long and is easily affected by wind loads during the hoisting process, resulting in a decrease in the hoisting accuracy. Therefore, a concrete composite slab hoisting device that can stably lift the slab is needed.

[0003] A document with prior art disclosure (announcement) number CN210439705U provides a precast concrete composite slab lifting device. In the related technology of the device, a special splicing reinforcement component is used to connect the reinforcement buckles on both sides of the longitudinal lifting support rod with pins to ensure the overall stability of the splicing lifting device and speed up the installation and disassembly efficiency of the lifting device.

[0004] Although the above-mentioned prior art solution can achieve the relevant beneficial effects through the structure of the prior art, it still has the following defects: when the wire rope is used for lifting operation, it will cause the lifting object to deviate, resulting in poor stability of the hoisted concrete composite slab.

[0005] In view of this, we propose a concrete composite slab lifting device. Utility Model Content

[0006] In order to improve the problems raised in the above background technology, the present application provides a concrete composite slab hoisting device.

[0007] The concrete composite slab lifting device provided in this application adopts the following technical solution:

[0008] A concrete composite slab hoisting device, comprising:

[0009] A davit capable of being mounted with a lifting device;

[0010] The arm is hingedly mounted on the outside of the davit in a staggered symmetrical structure;

[0011] Steel cable, passing through the boom and connected and fixed to the davit;

[0012] A spreader bar, hingedly mounted on the outside of the boom;

[0013] The screw sleeve seat is hingedly installed between two symmetrical expansion support rods;

[0014] Adjust the lead screw, rotate it to connect to the bottom end of the suspension column, and adapt it to the thread of the screw sleeve seat.

[0015] By adopting the above technical solution, the steel cable is coordinated with the arm so that the steel cable can stably lift objects under the guidance of the arm, thereby ensuring the stability of the steel cable lifting. The arm is supported by a support rod with an angle adjustment function to adjust the expansion angle of the arm, thereby ensuring that the steel cable can fit various specifications of concrete composite slabs for lifting.

[0016] As an optional solution of the technical solution of the present application document, one side of the arm and the line mouth are rotatably connected to a fixed pulley capable of guiding the steel cable, and one end of the steel cable is fixedly connected to a steel rope tightener capable of telescopic adjustment.

[0017] By adopting the above technical solution, the steel rope tightener can be used to compensate for the hoisting height of steel cables with different height adjustments, ensuring that the concrete composite slab can be hoisted and used smoothly.

[0018] As an optional solution to the technical solution of the present application document, a lifting rod is hingedly installed in a movable opening at one end of the arm rod, and a hanging rod is slidably connected to the outside of the lifting rod. The hanging rod arranged in an L-shaped structure is threadedly connected to the lifting rod through an adjusting screw connected by internal rotation to limit the position.

[0019] By adopting the above technical solution, the lifting rod and the hanging rod are used for telescopic adjustment, so that the side of the concrete composite slab lifted by the steel cable can be hung and limited, thereby ensuring the safety of the lifting and use of the concrete composite slab.

[0020] As an optional solution to the technical solution of the present application document, one end of the hanging rod arranged in an L-shaped structure is hingedly installed with two outward expansion rods, and the hinged end of the outward expansion rod is fixedly connected with a transmission gear, and the two transmission gears are meshed and adapted for transmission.

[0021] By adopting the above technical solution, the outer expansion rod of the meshing transmission is used for hinged expansion, so that the bottom side of the lifted concrete composite slab can be effectively lifted and supported.

[0022] As an optional solution to the technical solution of the present application document, the sleeve seat includes a screw sleeve that can be adapted to the adjusting screw thread, the screw sleeve is externally rotatably connected to a hinge seat, the external thread of the hinge seat is connected to a fastening bolt that can abut and limit the screw sleeve, and the hinge seat is hingedly installed with the expansion rod.

[0023] By adopting the above technical solution, by utilizing the limit connection between the lead screw sleeve and the articulated seat through the tightening bolts, it is possible to choose whether the sleeve seat is limited by the adjustable lead screw thread, thereby facilitating the adjustment of adjacent spacing of the symmetrically staggered arms, so that the arms can be used for stably lifting the concrete composite slabs of the square structure.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The present application utilizes the cooperation of steel cables and arm rods so that the steel cables can stably lift objects under the guidance of the arm rods, thereby ensuring the stability of the steel cables in lifting. The arm rods are supported by expansion rods with angle adjustment function to achieve adjustment of the expansion angle of the arm rods, thereby ensuring that the steel cables can fit various specifications of concrete composite slabs for lifting.

[0026] 2. The present application utilizes the lifting rod and the hanging rod for telescopic adjustment, so that the side of the concrete composite slab lifted by the steel cable can be hung and limited to ensure the safety of the lifting and use of the concrete composite slab, and the outward expansion rod of the meshing transmission is hinged and unfolded to effectively support the bottom side of the lifted concrete composite slab. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a concrete composite slab hoisting device disclosed in a preferred embodiment of the present application;

[0028] Figure 2 A schematic diagram of the arm structure connection of a concrete composite slab hoisting device disclosed in a preferred embodiment of the present application;

[0029] Figure 3 A schematic diagram of the screw sleeve seat structure of a concrete composite slab lifting device disclosed in a preferred embodiment of the present application;

[0030] Explanation of the numbers in the figure: 1. Hanging column; 2. Arm; 3. Steel cable; 4. Expanding support rod; 5. Screw sleeve seat; 6. Adjusting screw; 21. Fixed pulley; 22. Lifting rod; 23. Hanging rod; 24. Outward expansion rod; 25. Transmission gear; 31. Steel rope tightener; 51. Screw screw sleeve; 52. Articulated seat. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings.

[0032] Reference Figure 1-3 A concrete composite slab hoisting device in the embodiment of the present application includes:

[0033] A davit 1 capable of being mounted with a lifting device;

[0034] The arm 2 is hingedly mounted on the outside of the davit 1 in a staggered symmetrical structure;

[0035] A steel cable 3 passes through the arm 2 and is connected and fixed to the davit 1;

[0036] The expansion rod 4 is hingedly mounted outside the arm 2;

[0037] The screw sleeve seat 5 is hingedly installed between two symmetrical expansion support rods 4;

[0038] The screw rod 6 is adjusted to be rotatably connected to the bottom end of the suspension column 1 and threadably matched with the screw sleeve seat 5.

[0039] The concrete composite slab lifting device utilizes the steel cable 3 in cooperation with the arm 2, so that the steel cable 3 can stably lift objects under the guidance of the arm 2, thereby ensuring the stability of the steel cable 3 in lifting. The arm 2 is supported by the expansion rod 4 with an angle adjustment function, and the expansion angle of the arm 2 is adjusted to ensure that the steel cable 3 can fit various specifications of concrete composite slabs for lifting.

[0040] Reference Figure 2 and Figure 1 In the concrete composite slab lifting device recorded in the embodiment of the present application, one side of the arm 2 and the line mouth are rotatably connected to the fixed pulley 21 that can guide the steel cable 3, and one end of the steel cable 3 is fixedly connected to a steel rope tightener 31 that can be telescopically adjusted, and a lifting rod 22 is hingedly installed in the movable mouth opened at one end of the arm 2, and a hanging rod 23 is slidably connected to the outside of the lifting rod 22. The hanging rod 23 arranged in an L-shaped structure is threadedly connected to the lifting rod 22 through an adjusting screw connected internally and rotatably, and one end of the hanging rod 23 arranged in an L-shaped structure is hingedly installed with two outward expansion rods 24, and the hinged end of the outward expansion rod 24 is fixedly connected to a transmission gear 25, and the two transmission gears 25 are meshed and adapted for transmission.

[0041] The concrete composite slab lifting device can compensate for the lifting height of the steel cable 3 with different height adjustments by using the steel rope tightener 31, thereby ensuring that the concrete composite slab can be stably lifted and used, and the lifting rod 22 and the hanging rod 23 can be telescopically adjusted, so that the side of the concrete composite slab lifted by the steel cable 3 can be hung and limited, thereby ensuring the safety of the lifting and use of the concrete composite slab, and the hanging rod 23 arranged in an L-shaped structure is hingedly installed at one end with two outward expansion rods 24, and the hinged end of the outward expansion rod 24 is fixedly connected with a transmission gear 25, and the two transmission gears 25 are meshed and adapted.

[0042] Reference Figure 3 and Figure 1 In the concrete composite slab lifting device recorded in the embodiment of the present application, the screw sleeve seat 5 includes a screw sleeve 51 that can be threadably adapted to the adjusting screw 6, the screw sleeve 51 is externally rotatably connected to a hinge seat 52, the hinge seat 52 is externally threadedly connected to a fastening bolt that can abut and limit the screw sleeve 51, and the hinge seat 52 is hingedly installed with the expansion support rod 4.

[0043] The concrete composite slab lifting device utilizes the screw sleeve 51 and the hinge seat 52 to limit the connection through the fastening bolts, and can select whether the sleeve seat 5 is limited by the thread of the adjustable screw 6, so as to facilitate the adjustment of the adjacent spacing of the symmetrically staggered arm rods 2, so that the arm rods 2 can stably lift the rectangular concrete composite slab.

[0044] Working principle: When the device is needed to stably lift a rectangular concrete composite slab, the device needs to be lowered to an appropriate height above the concrete composite slab to be lifted, and according to the length specifications of the concrete composite slab, the screw 6 is rotated and adjusted in sequence to drive the screw sleeve seat 5 to lift and lower, so that the screw sleeve seat 5 that is regulated to move in a limited position drives the expansion rod 4 to adjust the arm 2 to a hanger that meets the specifications and shape of the hoisted concrete composite slab;

[0045] Next, the steel rope tightener 31 at one end of the steel cable 3 on the high side is thread-adjusted to keep the multiple steel rope tighteners 31 on the same horizontal line;

[0046] When the steel rope tightener 31 is mounted and connected to the concrete composite slab and is lifted, the operator on the ground turns over the lifting rod 22 to drive the hanging rod 23 to perform auxiliary hanging and limiting on the side of the lifted concrete composite slab.

Claims

1. A concrete composite slab hoisting device, characterized in that: include: A davit (1) capable of being mounted with a lifting device; The arm (2) is hingedly mounted on the outside of the suspension column (1) in a staggered symmetrical structure; A steel cable (3) passes through the arm (2) and is connected and fixed to the davit (1); A spreading rod (4) is hingedly mounted outside the arm (2); The screw sleeve seat (5) is hingedly mounted between two symmetrical expansion support rods (4); The adjusting screw (6) is rotatably connected to the bottom end of the suspension column (1) and is threadably matched with the screw sleeve seat (5).

2. The concrete composite slab hoisting device according to claim 1 is characterized in that: One side of the arm (2) and the line port are both rotatably connected to a fixed pulley (21) capable of guiding the steel cable (3), and one end of the steel cable (3) is fixedly connected to a steel cable tightener (31) capable of telescopic adjustment.

3. The concrete composite slab hoisting device according to claim 1 is characterized in that: A lifting rod (22) is hingedly installed in a movable opening at one end of the arm rod (2), and a hanging rod (23) is slidably connected to the outside of the lifting rod (22). The hanging rod (23) is arranged in an L-shaped structure and is threadedly connected to the lifting rod (22) through an adjusting screw connected by internal rotation to limit the position.

4. The concrete composite slab hoisting device according to claim 3 is characterized in that: One end of the hook rod (23) arranged in an L-shaped structure is hingedly mounted with two outward expansion rods (24), and the hinged end of the outward expansion rod (24) is fixedly connected with a transmission gear (25), and the two transmission gears (25) are meshed and adapted for transmission.

5. The concrete composite slab hoisting device according to claim 1, characterized in that: The screw sleeve seat (5) comprises a screw sleeve (51) which can be threadably matched with the adjusting screw (6); the screw sleeve (51) is externally rotatably connected to a hinge seat (52); the hinge seat (52) is externally threadably connected to a fastening bolt which can abut against the screw sleeve (51) to limit the position; and the hinge seat (52) is hingedly mounted to the expansion support rod (4).

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