A hoisting device for laminated slabs

Abstract

The utility model discloses a kind of superimposed plate hoisting devices, the utility model relates to superimposed plate hoisting technical field.It includes hoisting support, the upper end of hoisting support is provided with lifting ring, installation mechanism for superimposed plate hoisting is provided on hoisting support, installation mechanism includes: adjusting assembly, including the slide rail support of hoisting support lower end fixation, the inside of slide rail support is provided with the sliding block connected by opening and closing component, the both ends of sliding block are provided with the hoisting pole rotatably connected by rotating shaft, the lower end of hoisting pole movably connects with lifting hook main body, the utility model opening and closing component is through bidirectional screw rod adjusting sliding block position, the interval of lifting hook main body can be flexibly adjusted, adapt to the hoisting demand of different size superimposed plate, improve the versatility of device, and locking assembly is through the cooperation of baffle rod, locking groove and locking rod, hoisting hook main body and hoisting pole can be firmly connected, avoid lifting hook to fall off in hoisting process, enhance the security of hoisting.

Description

Technical Field

[0001] This utility model relates to the field of composite slab hoisting technology, specifically a composite slab hoisting device. Background Technology

[0002] Composite slabs are precast concrete slabs formed by stacking multiple concrete segments to create large components, facilitating faster and more efficient construction. Composite slabs are typically prefabricated in a factory, requiring only hoisting and installation on-site, reducing the time spent on-site concrete pouring. Specialized hoisting equipment is usually needed during hoisting to ensure the composite slabs are moved safely and efficiently to their designated locations.

[0003] Currently, hoisting devices use hooks to lift composite slabs. However, these devices employ only simple hook structures and lack effective locking mechanisms. During hoisting, the hooks can easily detach from the hoisting rods due to swaying or external impacts on the composite slabs, potentially causing safety accidents. Furthermore, accurately determining the center position of the hoisting support on the composite slab is crucial. If the hoisting support deviates from the center, the center of gravity of the composite slab will shift during hoisting, causing an imbalance of forces at both ends. This can lead to tilting, swaying, or even breakage during lifting and positioning, severely impacting construction quality and safety. However, most existing hoisting devices lack effective positioning mechanisms, making it difficult to position the hoisting device and ensure the hoisting support is centered on the composite slab. Therefore, this invention provides a composite slab hoisting device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a composite slab hoisting device that solves the problem of simple hook structures lacking effective locking mechanisms, which can easily cause the hook to detach from the hoisting rod during hoisting due to the swaying of the composite slab or external impact, thus leading to safety accidents.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a composite slab hoisting device, comprising a hoisting bracket, a hoisting ring at the upper end of the hoisting bracket, and an installation mechanism for hoisting the composite slab on the hoisting bracket, the installation mechanism comprising: The adjustment assembly includes a slide rail bracket fixed at the lower end of the hoisting bracket, a slider connected by an opening and closing assembly inside the slide rail bracket, hoisting rods rotatably connected at both ends of the slider by a rotating shaft, a hook body movably connected at the lower end of the hoisting rods, and a stop bar connected by a locking assembly at the upper end of the hook body. The positioning assembly includes a limit slide rail fixed to the upper end face of the slide rail bracket, a slide rod bracket slidably connected inside the limit slide rail, and a positioning plate fixed to the lower end of the slide rod bracket.

[0006] Preferably, the opening and closing assembly includes a bidirectional screw rotatably connected inside the slide rail bracket, the slider is slidably connected to the inner wall of the slide rail bracket, and the slider is threadedly connected to the bidirectional screw.

[0007] Preferably, the slider is configured as two sets, and the lifting rods are located at both ends of the slider.

[0008] Preferably, the locking assembly includes a locking groove on the lower side wall of the lifting rod, the stop rod is located at the upper end of the hook body and is rotatably connected by a rotating shaft, one end of the stop rod is engaged with the inside of the locking groove, a locking rod is fixed to the side wall of one end of the stop rod, the locking rod is in contact with the outer wall of the lifting rod, and a bolt is provided inside the locking rod.

[0009] Preferably, the limiting slide rail has an L-shaped structure, and the limiting slide rail is configured in two sets that are symmetrically installed, with the slide rod bracket located inside the limiting slide rail.

[0010] Preferably, the hoisting bracket has a sliding groove inside, a lead screw is rotatably connected inside the sliding groove, a movable block is slidably connected to the inner wall of the sliding groove, the movable block is threadedly connected to the lead screw, movable rods are provided on both sides of the movable block and rotatably connected by a rotating shaft, a connecting block is fixed at the upper end of the sliding rod bracket, and the other end of the movable rod is rotatably connected to the connecting block by a rotating shaft.

[0011] Beneficial effects This utility model provides a hoisting device for composite slabs. Compared with the prior art, it has the following advantages: Firstly, the opening and closing assembly of this utility model can flexibly adjust the spacing of the hook body by adjusting the position of the slider through a bidirectional screw, adapting to the hoisting requirements of composite plates of different sizes and improving the versatility of the device. Furthermore, the locking assembly, through the cooperation of the stop bar, locking groove and locking rod, can firmly connect the hook body to the hoisting rod, preventing the hook from falling off during hoisting and enhancing the safety of hoisting.

[0012] Secondly, this utility model, through the cooperation of the lead screw, movable block, and movable rod, can precisely control the movement of the positioning plate, ensuring that the two sets of positioning plates accurately clamp the composite plate, so that the hoisting bracket is in the center position, solving the problem of difficulty in finding the center point, and avoiding the breakage of the composite plate due to imbalance at both ends caused by the center of gravity shift. The limiting slide rail is L-shaped and symmetrically installed, which guides and limits the sliding of the slide rod bracket, ensuring that the movement of the positioning plate is stable and accurate. It can quickly and accurately complete the hoisting preparation and positioning work of the composite plate, improving hoisting efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a schematic diagram of the slider structure of this utility model; Figure 3 This is a schematic diagram of the positioning plate structure of this utility model; Figure 4 This is a schematic diagram of the main structure of the hook of this utility model.

[0014] In the diagram: 1. Lifting bracket; 101. Lifting ring; 2. Slide rail bracket; 201. Double-acting screw; 202. Slider; 203. Lifting rod; 204. Hook body; 3. Stop bar; 301. Locking rod; 302. Locking groove; 4. Limiting slide rail; 401. Slide rod bracket; 402. Positioning plate; 5. Slide groove; 501. Lead screw; 502. Movable block; 503. Movable rod; 504. Connecting block. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-4 This utility model provides a technical solution: a composite slab hoisting device, including a hoisting bracket 1, a hoisting ring 101 at the upper end of the hoisting bracket 1, and an installation mechanism for hoisting the composite slab on the hoisting bracket 1, the installation mechanism including: The adjustment assembly includes a slide rail bracket 2 fixed at the lower end of the lifting bracket 1. The slide rail bracket 2 is provided with a slider 202 connected by an opening and closing assembly. Both ends of the slider 202 are provided with a lifting rod 203 rotatably connected by a rotating shaft. The lower end of the lifting rod 203 is movably connected to a hook body 204. The upper end of the hook body 204 is provided with a stop bar 3 connected by a locking assembly. The positioning assembly includes a limit slide rail 4 fixed to the upper end face of the slide rail bracket 2, a slide rod bracket 401 slidably connected inside the limit slide rail 4, and a positioning plate 402 fixed to the lower end of the slide rod bracket 401.

[0017] The lifting ring 101 is lifted by a crane.

[0018] In a preferred embodiment, the opening and closing assembly includes a bidirectional screw 201 rotatably connected inside the slide rail bracket 2, a slider 202 slidably connected to the inner wall of the slide rail bracket 2, and a threaded connection between the slider 202 and the bidirectional screw 201. The slider 202 is configured as two sets, and the lifting rods 203 are respectively located at both ends of the slider 202. The locking assembly includes a locking groove 302 opened on the lower side wall of the lifting rod 203, a stop rod 3 located at the upper end of the hook body 204 and rotatably connected via a rotating shaft, one end of the stop rod 3 being engaged with the inside of the locking groove 302, and a locking rod 301 fixed to the side wall of one end of the stop rod 3. The locking rod 301 is in contact with the outer wall of the lifting rod 203, and a bolt is provided inside the locking rod 301.

[0019] When it is necessary to adjust the spacing of the lifting points to accommodate composite plates of different sizes, operate the opening and closing assembly and rotate the bidirectional screw 201. Since the slider 202 is threadedly connected to the bidirectional screw 201 and slides on the inner wall of the slide rail bracket 2, the two sets of sliders 202 will move towards or away from each other along the bidirectional screw 201.

[0020] The movement of the slider 202 drives the lifting rod 203 connected at both ends by a rotating shaft to move, thereby adjusting the distance between the hook bodies 204 to match the lifting point position on the composite plate. When the hook body 204 is connected to the lifting point on the composite plate, it is fixed by a locking assembly. The stop bar 3 is rotated so that one end of it is inserted into the locking groove 302 on the lower side wall of the lifting rod 203. At this time, the locking rod 301 at one end of the stop bar 3 is in contact with the outer wall of the lifting rod 203. The stop bar 3 is then locked by the bolt inside the locking rod 301 to prevent the hook body 204 from separating from the lifting point.

[0021] In a preferred embodiment, the limiting slide rail 4 has an L-shaped structure and is configured as two sets symmetrically installed. The slide rod bracket 401 is located inside the limiting slide rail 4. The hoisting bracket 1 has a slide groove 5 inside. The slide groove 5 is rotatably connected to the lead screw 501. The inner wall of the slide groove 5 is slidably connected to the movable block 502. The movable block 502 is threadedly connected to the lead screw 501. Movable rods 503 are rotatably connected to both sides of the movable block 502 via a rotating shaft. The upper end of the slide rod bracket 401 is fixed with a connecting block 504. The other end of the movable rod 503 is rotatably connected to the connecting block 504 via a rotating shaft. The two sets of positioning plates 402 clamp and position the composite plate to ensure that the hoisting bracket 1 is in the center position of the composite plate.

[0022] Furthermore, when it is necessary to determine the center position of the hoisting bracket 1 on the composite plate, the positioning component is operated and the lead screw 501 is rotated. Since the movable block 502 is threadedly connected to the lead screw 501 and slides on the inner wall of the slide groove 5, the movable block 502 will move up and down along the lead screw 501. The movement of the movable block 502 drives the movable rods 503 connected on both sides through the rotating shaft to move. The other end of the movable rod 503 is rotatably connected to the connecting block 504 at the upper end of the slide rod bracket 401, thereby pushing the slide rod bracket 401 to slide within the limit slide rail 4.

[0023] The sliding of the slide rod bracket 401 causes the positioning plate 402 fixed at the lower end to move. The two sets of symmetrically installed positioning plates 402 move closer to each other and clamp the composite plate. At this time, the hoisting bracket 1 is in the center position of the composite plate.

[0024] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0025] When it is necessary to adjust the spacing between the lifting points to accommodate composite plates of different sizes, operate the opening and closing assembly and rotate the bidirectional screw 201. Since the slider 202 is threadedly connected to the bidirectional screw 201 and slides on the inner wall of the slide rail bracket 2, the two sets of sliders 202 will move towards or away from each other along the bidirectional screw 201. The movement of the slider 202 drives the lifting rod 203 connected at both ends through the rotating shaft to move, thereby adjusting the distance between the hook bodies 204 to match the lifting point position on the composite plate. When connecting the hook body 204 to the lifting point of the composite plate, it is fixed by the locking assembly. Rotate the stop rod 3 so that one end of it is inserted into the locking groove 302 on the lower side wall of the lifting rod 203. At this time, the locking rod 301 at one end of the stop rod 3 is in contact with the outer wall of the lifting rod 203. Then, the stop rod 3 is locked by the bolt inside the locking rod 301 to prevent the hook body 204 from separating from the lifting point. When it is necessary to determine the center position of the hoisting bracket 1 on the composite plate, operate the positioning component and rotate the lead screw 501. Since the movable block 502 is threadedly connected to the lead screw 501 and slides on the inner wall of the slide groove 5, the movable block 502 will move up and down along the lead screw 501. The movement of the movable block 502 drives the movable rods 503 connected to both sides through the rotating shaft to move. The other end of the movable rod 503 is rotatably connected to the connecting block 504 at the upper end of the slide rod bracket 401, thereby pushing the slide rod bracket 401 to slide in the limiting slide rail 4. The sliding of the slide rod bracket 401 drives the positioning plate 402 fixed at the lower end to move. The two sets of symmetrically installed positioning plates 402 move closer to each other and clamp the composite plate. At this time, the hoisting bracket 1 is at the center position of the composite plate.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hoisting device for laminated slab, comprising a hoisting support (1), an upper end of the hoisting support (1) is provided with a lifting ring (101), characterized in that: The hoisting bracket (1) is equipped with an installation mechanism for hoisting the composite slabs. The installation mechanism includes: The adjustment assembly includes a slide rail bracket (2) fixed at the lower end of the lifting bracket (1). The slide rail bracket (2) is provided with a slider (202) connected by an opening and closing assembly. Both ends of the slider (202) are provided with a lifting rod (203) rotatably connected by a rotating shaft. The lower end of the lifting rod (203) is movably connected to a hook body (204). The upper end of the hook body (204) is provided with a stop bar (3) connected by a locking assembly. The positioning assembly includes a limit slide rail (4) fixed on the upper end face of the slide rail bracket (2), a slide rod bracket (401) slidably connected inside the limit slide rail (4), and a positioning plate (402) fixed at the lower end of the slide rod bracket (401).

2. The hoisting device for a laminated slab according to claim 1, characterized in that: The opening and closing assembly includes a bidirectional screw (201) rotatably connected inside the slide rail bracket (2), a slider (202) located on the inner wall of the slide rail bracket (2) in a sliding connection, and the slider (202) and the bidirectional screw (201) in a threaded connection.

3. The hoisting device for a laminated slab according to claim 1, characterized in that: The slider (202) is configured in two sets, and the lifting rods (203) are located at both ends of the slider (202).

4. The device according to claim 1, wherein: The locking assembly includes a locking groove (302) on the lower side wall of the lifting rod (203). The stop rod (3) is located at the upper end of the hook body (204) and is rotatably connected by a rotating shaft. One end of the stop rod (3) is engaged with the inside of the locking groove (302). A locking rod (301) is fixed on the side wall of one end of the stop rod (3). The locking rod (301) is in contact with the outer wall of the lifting rod (203), and a bolt is provided inside the locking rod (301).

5. The device according to claim 1, wherein: The limiting slide rail (4) has an L-shaped structure. The limiting slide rail (4) is configured in two sets that are symmetrically installed. The slide rod bracket (401) is located inside the limiting slide rail (4).

6. The device according to claim 1, wherein: The hoisting bracket (1) has a sliding groove (5) inside, and a lead screw (501) is rotatably connected inside the sliding groove (5). A movable block (502) is slidably connected to the inner wall of the sliding groove (5). The movable block (502) is threadedly connected to the lead screw (501). Movable rods (503) are rotatably connected to both sides of the movable block (502) via a rotating shaft. A connecting block (504) is fixed at the upper end of the sliding rod bracket (401). The other end of the movable rod (503) is rotatably connected to the connecting block (504) via a rotating shaft.

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