Assembled building laminated slab hoisting equipment

Abstract

The utility model belongs to the technical field of building hoisting, and particularly relates to assembly type building laminated slab hoisting equipment which comprises a hoisting plate, the upper surface of the hoisting plate is fixedly connected with a plurality of hoisting plate hoisting chains, the lower surface of the hoisting plate is provided with more than two groups of main hoisting assemblies and more than two groups of auxiliary hoisting assemblies, and the hoisting plate hoisting chains are fixedly connected with the hoisting plate hoisting chains. The main lifting assemblies comprise main lifting hooks and main lifting chains, the number of the main lifting hooks in each group of main lifting assemblies is more than two, the auxiliary lifting assemblies comprise auxiliary lifting hooks and auxiliary lifting chains, the lower surface of the lifting plate is rotationally connected with a rotating roller for winding the auxiliary lifting chains, and a driving part for driving the rotating roller to rotate is fixedly mounted on the lifting plate. According to the utility model, the main hoisting assembly and the auxiliary hoisting assembly are used for hoisting the prefabricated slab, the hoisting point positions of the prefabricated slab are increased, the hoisting of the prefabricated slab is more stable, and the potential safety hazard is effectively reduced; in addition, the prefabricated slab can be inclined under the action of the auxiliary hoisting assembly, and inclined hoisting of the prefabricated slab is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building hoisting, and in particular relates to a hoisting device for assembled building composite panels. Background Art

[0002] Composite slabs are prefabricated, monolithic floor slabs composed of precast panels and cast-in-place reinforced concrete layers. They are a preferred structural form, integrating the precast panels with the upper cast-in-place reinforced concrete layer to form a single unit. The precast panels serve as both a component of the composite slab structure and a permanent formwork for the cast-in-place reinforced concrete layer. Composite slabs offer excellent integrity and high rigidity, and their smooth upper and lower surfaces facilitate finishing. They are suitable for high-rise buildings and large-span structures requiring high rigidity.

[0003] At present, the composite slabs commonly used in domestic prefabricated building construction are truss reinforced concrete composite slabs. The prefabricated slabs of this composite slab are first prefabricated in the factory with the bottom plate and bottom truss steel bars, and then transported to the construction site for lifting and installation. However, the current lifting of prefabricated slabs at the construction site mostly adopts the method of tower crane wire rope / lifting chain. Specifically, the hooks on the wire rope / lifting chain are hooked with the hanging points on the prefabricated slab, and the number of hooks is usually four. Therefore, during the lifting process of the prefabricated slab, there are only four points of connection between the hook and the prefabricated slab, and the connection relies only on the strength of the four hanging points. As a result, the prefabricated slab is not stable enough during lifting, posing a major safety hazard. Utility Model Content

[0004] The utility model aims to provide a lifting device for assembled building composite panels, so as to solve the problem that traditional four-corner lifting devices are not stable enough and thus cause great safety hazards.

[0005] In order to achieve the above-mentioned purpose, the scheme of the utility model is as follows: prefabricated building composite panel lifting equipment, including a lifting plate, the upper surface of the lifting plate is fixedly connected to a plurality of lifting plate lifting chains, the lower surface of the lifting plate is provided with a main lifting assembly and an auxiliary lifting assembly, the number of main lifting assemblies and auxiliary lifting assemblies are both more than two groups, the main lifting assembly includes a main hook and a main lifting chain, and the number of main hooks in each group of main lifting assemblies is more than two, the auxiliary lifting assembly includes an auxiliary hook and an auxiliary lifting chain, the lower surface of the lifting plate is rotatably connected to a roller for winding the auxiliary lifting chain, and a driving member for driving the roller to rotate is fixedly installed on the lifting plate.

[0006] The working principle and beneficial effects of this solution are as follows: In this solution, the main lifting assembly and the auxiliary lifting assembly are used to connect the prefabricated panel and the lifting plate. In this way, there are at least six points on the prefabricated panel that are subjected to the upward pulling force. Compared with the traditional four-corner lifting method, this solution has more lifting points, and the lifting of the prefabricated panel is more stable, which effectively reduces safety hazards. Not only that, in this solution, the auxiliary lifting chain can be wrapped around the roller, the effective lifting length of the auxiliary lifting chain is adjustable, and the auxiliary lifting hook can arbitrarily select the hanging point on the prefabricated panel, which is suitable for prefabricated panels of different specifications. Moreover, during the lifting process of the prefabricated panel, the auxiliary lifting chain of a set of auxiliary lifting assemblies is wound, which can tilt the prefabricated panel and change the tilt angle of the prefabricated panel, thereby making it easier to lift the prefabricated panel.

[0007] Optionally, a limit plate I and a limit plate II are provided on the outer peripheral wall of the rotating roller, and a limit groove for the auxiliary lifting chain to be wound is formed between the limit plate I and the limit plate II.

[0008] In this solution, the auxiliary lifting chain is restricted from winding in the limiting groove, ensuring that the auxiliary lifting chain is wound or released on the same radial surface of the roller, thereby ensuring that the retraction and extension amount of the auxiliary lifting assembly can be accurately controlled.

[0009] Optionally, both the limiting plate I and the limiting plate II include a limiting main plate and a limiting guide plate, and the distance between the limiting guide plate of the limiting plate I and the limiting guide plate of the limiting plate II gradually increases radially outwardly along the rotating roller.

[0010] In this solution, the limiting guide plate is designed so that the limiting groove has an expanded opening, so that the auxiliary lifting chain can be smoothly wound around the roller or released from the roller when it is not in the radial direction of the roller.

[0011] Optionally, the driving component is a servo motor with a brake.

[0012] In this solution, the servo motor with a brake can prevent the auxiliary lifting chain from being released during the lifting process, thereby ensuring the lifting effect of the auxiliary lifting assembly on the prefabricated panel.

[0013] Optionally, the number of the main lifting components and the auxiliary lifting components are two groups, and the two groups of main lifting components are symmetrically arranged along the horizontal central axis of the lifting plate, and the two groups of auxiliary lifting components are symmetrically arranged along the horizontal central axis of the lifting plate.

[0014] In this solution, two sets of main lifting assemblies and two sets of auxiliary lifting assemblies are sufficient to lift the prefabricated panels, and the symmetrical arrangement can ensure that the prefabricated panels are subjected to balanced forces.

[0015] Optionally, the number of the driving members is the same as the number of the auxiliary lifting assemblies, and the driving members are arranged symmetrically along the center point of the lifting plate.

[0016] In this solution, the driving member is symmetrical along the center point of the lifting plate, and the lifting plate is kept horizontal under balanced force, avoiding the use of a counterweight block to balance the force of the lifting plate.

[0017] Optionally, the main hook and the auxiliary hook both include a hook body, an anti-slip plate is hinged on the hook body, and a torsion spring is installed at the hinge between the anti-slip plate and the hook body, and an obstruction part is provided on the hook body, and the outer side of the anti-slip plate is against the obstruction part.

[0018] In this solution, the anti-slip plate can deflect toward the hook inside the hook body so that the hook body can be hooked with the hanging point, and then the anti-slip plate is reset under the action of the torsion spring and re-aligned with the obstruction part, thereby preventing the hanging point from being unhooked and effectively improving the lifting safety.

[0019] Optionally, the number of the hoisting plate lifting chains is four or more, and the connection points between the hoisting plate lifting chains and the hoisting plate are evenly distributed on the hoisting plate.

[0020] In this solution, four or more lifting chains of the lifting plate apply a balanced pulling force to the lifting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of the hoisting equipment for assembled building composite panels in Example 1 of the present utility model;

[0022] Figure 2 for Figure 1 Left view of;

[0023] Figure 3 A schematic diagram of the suspension points selected for the main hook and the auxiliary hook in the first embodiment of the present invention;

[0024] Figure 4 This is a schematic structural diagram of the hook body in the second embodiment of the present utility model;

[0025] Figure 5 Schematic diagram of the deflected state of the anti-slip plate on the hook body in the second embodiment of the present utility model. DETAILED DESCRIPTION

[0026] The following is further described in detail through specific implementation methods:

[0027] The marks in the drawings of the specification include: lifting plate 1, lifting plate lifting chain 2, main lifting assembly 3, main hook 301, main lifting chain 302, auxiliary lifting assembly 4, auxiliary hook 401, auxiliary lifting chain 402, roller 5, mounting block 6, driving part 7, limit plate I8, limit plate II9, limit groove 10, hook body 11, obstruction part 1110, anti-slip plate 12, prefabricated plate 13.

[0028] Example 1

[0029] This embodiment is basically as Figure 1 and Figure 2 As shown: The prefabricated building composite panel lifting equipment includes a lifting plate 1, and a plurality of lifting plate lifting chains 2 are fixedly connected to the upper surface of the lifting plate 1. The number of the lifting plate lifting chains 2 is four or more, and the connection points between the lifting plate lifting chains 2 and the lifting plate 1 are evenly distributed on the lifting plate 1. In this embodiment, the number of the lifting plate lifting chains 2 is four, and the connection points between the four lifting plate lifting chains 2 and the lifting plate 1 are evenly distributed on the four corners of the lifting plate 1. The lifting plate lifting chains 2 are welded to the lifting plate 1, or the lifting plate 1 has holes for the lifting plate lifting chains 2 to pass through, and then the lifting plate lifting chains 2 are tied to the lifting plate 1.

[0030] The lower surface of the lifting plate 1 is provided with a main lifting assembly 3 and an auxiliary lifting assembly 4. The number of main lifting assemblies 3 and auxiliary lifting assemblies 4 is two or more. In this embodiment, the number of main lifting assemblies 3 and auxiliary lifting assemblies 4 is two. The two sets of main lifting assemblies 3 are symmetrically arranged along the horizontal longitudinal center axis of the lifting plate 1, and the two sets of auxiliary lifting assemblies 4 are symmetrically arranged along the horizontal longitudinal center axis of the lifting plate 1. Each set of main lifting assembly 3 includes a main hook 301 and a main lifting chain 302. The main hook 301 is welded to one end of the main lifting chain 302, and the other end of the main lifting chain 302 is welded to the bottom surface of the lifting plate 1. The number of main lifting hooks 301 is two or more. In this embodiment, the number of main lifting hooks 301 is two, and the two main hooks 301 are symmetrically arranged along the horizontal transverse center axis of the lifting plate 1.

[0031] Each auxiliary lifting assembly 4 includes an auxiliary hook 401 and an auxiliary lifting chain 402. The auxiliary hook 401 is welded to one end of the auxiliary lifting chain 402, and the other end of the auxiliary lifting chain 402 is welded to the bottom surface of the lifting plate 1. In this embodiment, there are two auxiliary hooks 401, symmetrically arranged along the horizontal transverse centerline of the lifting plate 1. A roller 5, around which the auxiliary lifting chain 402 is wound, is rotatably connected to the bottom surface of the lifting plate 1. Specifically, a mounting block 6 is welded to the bottom surface of the lifting plate 1. The mounting block 6 has a mounting hole, in which a bearing is fixed. The roller 5 is coaxially fixed to the bearing. A drive element 7 for rotating the roller 5 is fixedly mounted to the lifting plate 1 (specifically, the mounting block 6 welded to the bottom surface of the lifting plate 1). In this embodiment, the drive element 7 is a servo motor with a brake, and the two drive elements 7 are symmetrically arranged about the center point of the lifting plate 1. In addition, a limit plate I8 and a limit plate II9 are welded on the outer peripheral wall of the roller 5, and a limit groove 10 for the auxiliary lifting chain 402 to be wound around is formed between the limit plate I8 and the limit plate II9. The limit plate I8 and the limit plate II9 both include a limit main plate and a limit guide plate. The distance between the limit guide plate of the limit plate I8 and the limit guide plate of the limit plate II9 gradually increases radially outwardly along the roller 5, so that the inner diameter of the limit groove 10 gradually increases radially outwardly along the roller 5.

[0032] During actual use, under the action of lifting equipment (such as a tower crane), the lifting plate 1 is moved above the prefabricated panel 13 to be lifted, and the worker hooks the main hooks 301 on the corresponding hanging points on the prefabricated panel 13 (the trusses on the prefabricated panel 13). After the four main hooks 301 are hooked with the corresponding hanging points, the lifting plate 1 moves upward, the main lifting chain 302 is tightened, and the prefabricated panel 13 is lifted a certain distance (about 5 cm). At this time, the length of the auxiliary lifting chain 402 is observed. If the length of the auxiliary lifting chain 402 is insufficient for the auxiliary hook 401 to hook with the corresponding suspension point on the precast panel 13, the driver 7 is activated, which drives the roller 5 to rotate (forward), thereby releasing the auxiliary lifting chain 402. The effective length of the auxiliary lifting chain 402 increases, allowing the auxiliary hook 401 to hook with the corresponding suspension point on the precast panel 13. If the length of the auxiliary lifting chain 402 is sufficient, the auxiliary hook 401 is hooked to the corresponding suspension point on the precast panel 13 until all four auxiliary hooks 401 are hooked with the corresponding suspension points. Then, the driver 7 is activated again, which drives the roller 5 to rotate in the reverse direction, causing the auxiliary lifting chain 402 to be wrapped around the limiting groove 10, reducing the length of the auxiliary lifting chain 402 and tightening it, thereby allowing the auxiliary lifting assembly 4 to assist the main lifting assembly 3 in lifting the precast panel 13. Finally, the hoisting equipment hoists the hoisting plate 1 and the prefabricated plate 13 to the predetermined position for installation. In this embodiment, the main hook 301 and the auxiliary hook 401 are located at the selected suspension points on the prefabricated plate 13. Figure 3 shown.

[0033] In addition, during the hoisting process of the precast panel 13, when the precast panel 13 needs to be tilted according to the actual situation of the construction site, the driving member 7 on the left side drives the roller 5 to reverse (refer to Figure 2 ), so that the auxiliary lifting chain 402 on the left is wound in the corresponding limiting groove 10, the effective length of the auxiliary lifting chain 402 on the left is reduced, and the precast panel 13 being hoisted gradually becomes higher on the left and lower on the right; when the driving member 7 on the right drives the roller 5 to reverse, so that the auxiliary lifting chain 402 on the right is wound in the corresponding limiting groove 10, the length of the auxiliary lifting chain 402 on the right is reduced, and the precast panel 13 being hoisted gradually becomes lower on the left and higher on the right. In this way, the precast panel 13 can be hoisted horizontally or tilted, and the tilt angle can be adjusted. In addition, the winding and releasing of the auxiliary lifting chain 402 are guided by the limiting guide plate, and the auxiliary lifting chain 402 can be smoothly wound and released, thereby ensuring the winding and releasing amount of the auxiliary lifting chain 402.

[0034] After the prefabricated panel 13 is seated at the predetermined position, the hoisting plate 1 continues to move downward for a distance (e.g., 10 cm), so that the main hoisting chain 302 and the auxiliary hoisting chain 402 are no longer taut, and the worker can remove the main hook 301 and the auxiliary hook 401 from the corresponding hanging points.

[0035] In summary, this embodiment provides eight locations for hoisting the prefabricated panels 13. Compared to the traditional four-corner hoisting method, this embodiment provides a more stable hoisting of the prefabricated panels 13, effectively reducing safety hazards. Furthermore, this embodiment is applicable to prefabricated panels 13 of different specifications. Furthermore, in this embodiment, the prefabricated panels 13 can be tilted during hoisting, further facilitating the hoisting of the prefabricated panels 13.

[0036] Example 2

[0037] The difference between this embodiment and the first embodiment is that: Figure 4 As shown, both the main hook 301 and the auxiliary hook 401 include a hook body 11, to which is hingedly connected an anti-slip plate 12. Specifically, the anti-slip plate 12 is hingedly connected to the hook body 11 via a pin. A torsion spring (not shown) is installed at the hinged connection between the anti-slip plate 12 and the hook body 11. One end of the torsion spring is welded to the anti-slip plate 12, and the other end of the torsion spring is welded to the hook body 11. An obstruction portion 1110 is integrally formed on the hook body 11, and the outer side of the anti-slip plate 12 abuts against the obstruction portion 1110.

[0038] In this embodiment, when the main hook 301 and the auxiliary hook 401 are hooked with the corresponding hanging points, the anti-dropping piece 12 hinged on the hook body 11 deflects inward (such as Figure 5 As shown by the dotted line in the middle, the hook body 11 is hooked with the hanging point, and then the anti-slip sheet 12 is deflected outward and reset under the action of the torsion spring, and the anti-slip sheet 12 is again against the obstruction portion 1110, thereby closing the opening of the hook body 11, avoiding the occurrence of unhooking, and effectively improving the safety of lifting.

[0039] The above description is merely an embodiment of the present invention. Commonly known details such as the specific structure and characteristics of the solution are not described in detail here. It should be noted that those skilled in the art may make various modifications and improvements without departing from the structure of the present invention. These modifications and improvements should also be considered within the scope of protection of the present invention and will not affect the effectiveness and practicality of the implementation of the present invention. The specific embodiments and other descriptions in the specification may be used to interpret the content of the claims.

Claims

1. A lifting device for assembled building composite panels, comprising a lifting plate, the upper surface of which is fixedly connected to a plurality of lifting chains for the lifting plate, characterized in that: The lower surface of the lifting plate is provided with a main lifting assembly and an auxiliary lifting assembly, and the number of the main lifting assembly and the auxiliary lifting assembly are both more than two groups. The main lifting assembly includes a main hook and a main lifting chain, and the number of main hooks in each group of main lifting assemblies is more than two. The auxiliary lifting assembly includes an auxiliary hook and an auxiliary lifting chain. The lower surface of the lifting plate is rotatably connected to a roller for winding the auxiliary lifting chain, and a driving member for driving the roller to rotate is fixedly installed on the lifting plate.

2. The hoisting equipment for assembled building composite panels according to claim 1 is characterized in that: A limiting plate I and a limiting plate II are provided on the outer peripheral wall of the rotating roller, and a limiting groove for the auxiliary lifting chain to be wound is formed between the limiting plate I and the limiting plate II.

3. The hoisting equipment for assembled building composite panels according to claim 2 is characterized in that: The limiting plate I and limiting plate II both include a limiting main plate and a limiting guide plate. The distance between the limiting guide plate of limiting plate I and the limiting guide plate of limiting plate II gradually increases outward along the radial direction of the rotating roller.

4. The hoisting equipment for assembled building composite panels according to claim 1 is characterized in that: The driving component is a servo motor with a brake.

5. The hoisting equipment for assembled building composite panels according to claim 1 is characterized in that: The number of the main lifting components and the auxiliary lifting components are both two groups, and the two groups of main lifting components are symmetrically arranged along the horizontal central axis of the lifting plate, and the two groups of auxiliary lifting components are symmetrically arranged along the horizontal central axis of the lifting plate.

6. The hoisting equipment for assembled building composite panels according to claim 5 is characterized in that: The number of the driving members is the same as the number of the auxiliary lifting assemblies, and the driving members are arranged symmetrically along the center point of the lifting plate.

7. The hoisting equipment for assembled building composite panels according to claim 1 is characterized in that: The main hook and the auxiliary hook both include a hook body, an anti-dropping piece is hinged on the hook body, and a torsion spring is installed at the hinge between the anti-dropping piece and the hook body. An obstruction part is provided on the hook body, and the outer side of the anti-dropping piece is against the obstruction part.

8. The hoisting equipment for assembled building composite panels according to claim 1 is characterized in that: The number of the hoisting plate lifting chains is four or more, and the connection points between the hoisting plate lifting chains and the hoisting plate are evenly distributed on the hoisting plate.

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