Prefabricated column hoisting device

Abstract

The utility model relates to a prefabricated column hoisting device which comprises two 90-degree bent plates which are symmetrically arranged, the two 90-degree bent plates define a rectangular frame which is consistent with a prefabricated column in size, the two ends of each 90-degree bent plate extend outwards to form connecting plates, hoisting clamping plates are arranged between the two connecting plates at the two ends, and the hoisting clamping plates are connected with the two 90-degree bent plates. The two connecting plates are connected with the lower portions of the hoisting clamping plates through high-strength bolts, and hoisting holes are formed in the upper portions of the two hoisting clamping plates. The device is mainly used for hoisting the prefabricated column with corbels on the periphery, the prefabricated column is hooped through the two 90-degree bent plates for hoisting, a thin-wall steel pipe does not need to be pre-buried in the prefabricated column to form a preformed hole, the technological process in the production process of the prefabricated column can be reduced, and compared with a traditional method that a steel bar penetrates through the preformed hole, extends out of the prefabricated column and then is hoisted through a steel wire rope clamping ring, the hoisting efficiency is improved. The device is better in stress stability, is favorable for improving the hoisting safety of the prefabricated column, and is also convenient to mount and dismount.

Description

Technical Field

[0001] This utility model belongs to the field of precast column hoisting technology, and in particular relates to a precast column hoisting device. Background Technology

[0002] Precast columns are building column components that are prefabricated in a factory, typically made of reinforced concrete or steel. After production, precast columns are transported to the construction site for hoisting and installation, becoming part of the building structure.

[0003] The traditional method for hoisting precast columns is to pre-embed thin-walled steel pipes inside the precast column to form reserved holes. After steel bars are inserted through the reserved holes and extended out of the precast column, they are hoisted using steel wire rope hooks. For example, the precast column hoisting device structure disclosed in patent CN207918257U and the precast column hoisting device disclosed in patent CN222042354U both use similar methods.

[0004] Some precast columns have corbels on their sides. These corbels can serve as ready-made support points, reducing on-site welding or casting and accelerating construction. Multi-directional corbels also allow for more flexible adjustments to the beam arrangement. For example... Figure 1 As shown, for a precast column 100 with brackets 101 on all four sides (or a cantilever beam on one side), if the traditional hoisting method is used, that is, the steel bar 200 is inserted through the pre-drilled hole and then hoisted with a wire rope hook, the steel bar 200 needs to extend beyond the position of the brackets 101 after extending on the precast column. In this case, the extension length of the steel bar 200 is too long, the stress stability is poor, and there is a safety hazard in hoisting the precast column. At the same time, the steel bar 200 is easy to bend and difficult to remove. Utility Model Content

[0005] The main objective of this invention is to propose a precast column hoisting device that can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A precast column hoisting device is used to hoist a precast column with corbels on all four sides. It is characterized by comprising two symmetrically arranged 90-degree curved plates, which together form a rectangular frame of the same size as the precast column. Connecting plates extend outward from both ends of the two 90-degree curved plates, and hoisting clamps are provided between the two connecting plates at both ends. The lower parts of the two connecting plates and the hoisting clamps are connected by high-strength bolts, and hoisting holes are provided on the upper parts of the two hoisting clamps.

[0008] Preferably, the two connecting plates at both ends are parallel to each other.

[0009] Preferably, the 90-degree bending plate and the hoisting clamp are both steel plates.

[0010] Preferably, the connecting plate and the lower part of the lifting clamp are provided with three high-strength bolt holes arranged vertically, and the distance between the holes is greater than 1.5 times the hole diameter.

[0011] Preferably, the upper circumference of the lifting hole on the lifting clamp is fully welded with a reinforcing steel plate.

[0012] Preferably, the outer surface of the 90-degree curved plate is fixed with reinforcing ribs, which are arranged along the length of the 90-degree curved plate.

[0013] This utility model provides a precast column hoisting device, which has the following beneficial effects:

[0014] This device is mainly used for hoisting precast columns with brackets on all four sides. It hoists the precast columns by clamping them with two 90-degree bent plates, eliminating the need to pre-embed thin-walled steel pipes to form reserved holes in the precast columns. This reduces the process steps in the production of precast columns. Compared with the traditional method of inserting steel rods through reserved holes and then hoisting the precast columns with wire rope clamps, this device has better stress stability, which helps to improve the safety of hoisting precast columns. At the same time, it is also convenient to install and disassemble. Attached Figure Description

[0015] Figure 1 This is a structural diagram of a traditional precast column hoisting method;

[0016] Figure 2 This is a front view of the precast column hoisting device of this utility model in use;

[0017] Figure 3 This is a top view of the precast column hoisting device of this utility model during use;

[0018] Figure 4 This is a front view of the precast column hoisting device of this utility model.

[0019] In the diagram: 1. 90-degree curved plate; 11. Connecting plate; 2. Lifting clamp; 21. Lifting hole; 22. High-strength bolt hole; 23. Reinforcing steel plate; 3. High-strength bolt; 100. Precast column; 101. Bracket; 200. Steel bar. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example

[0025] Reference Figure 2-4 A precast column hoisting device is used to hoist a precast column 100 with corbels 101 on all four sides. It includes two symmetrically arranged 90-degree curved plates 1. The two 90-degree curved plates 1 form a rectangular frame with the same size as the precast column 100. Both ends of the two 90-degree curved plates 1 have connecting plates 11 extending outward. Hoisting clamping plates 2 are provided between the two connecting plates 11 at both ends. The two connecting plates 11 are connected to the lower part of the hoisting clamping plates 2 by high-strength bolts 3. The upper part of the two hoisting clamping plates 2 is provided with hoisting holes 21.

[0026] When using this device, two 90-degree curved plates 1 are placed around the precast column 100 and below its bracket 101. Then, a lifting clamp 2 is placed between the two connecting plates 11 at both ends of the curved plates. The two connecting plates 11 are connected to the lower part of the lifting clamp 2 with high-strength bolts 3. In this way, the two 90-degree curved plates 1 clamp the precast column 100. Finally, the wire rope hook of the lifting machinery is passed through the lifting hole 21 on the upper part of the lifting clamp 2 to lift the precast column 100 to the corresponding foundation position.

[0027] This device is mainly used for hoisting precast columns 100 with brackets 101 on all four sides. The precast columns 100 are hoisted by two 90-degree bent plates 1, eliminating the need to pre-embed thin-walled steel pipes to form reserved holes in the precast columns 100. This reduces the process flow in the production of precast columns 100. Compared with the traditional method of inserting steel rods 200 through reserved holes and then hoisting the precast columns 100 with wire rope clamps, this device has better stress stability, which helps to improve the safety of hoisting the precast columns 100. At the same time, it is also convenient to install and disassemble.

[0028] In one specific implementation, the two connecting plates 11 at both ends are parallel to each other, which can ensure the strength and stability of the high-strength bolt 3 connection.

[0029] In one specific implementation, both the 90-degree bending plate 1 and the hoisting clamp plate 2 are steel plates.

[0030] In one specific implementation, three high-strength bolt holes 22 are arranged vertically on the connecting plate 11 and the lower part of the hoisting clamp plate 2, with the spacing between the holes being greater than 1.5 times the hole diameter.

[0031] In one specific implementation, a reinforcing steel plate 23 is fully welded around the upper periphery of the lifting hole 21 on the lifting clamp 2 to improve the strength of the connection between the lifting clamp 2 and the wire rope hook.

[0032] In one specific implementation, a reinforcing rib is fixed to the outer surface of the 90-degree bending plate 1. The reinforcing rib is arranged along the length of the 90-degree bending plate 1 to improve the strength of the 90-degree bending plate 1 and prevent bending.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A precast column hoisting device for hoisting precast columns with corbels on all four sides, characterized in that: It includes two symmetrically arranged 90-degree curved plates, which form a rectangular frame with the same size as the precast column. Both ends of the two 90-degree curved plates have connecting plates extending outward. A lifting clamp is provided between the two connecting plates at both ends. The two connecting plates are connected to the lower part of the lifting clamp by high-strength bolts. The upper part of the two lifting clamps has a lifting hole.

2. The precast column hoisting device according to claim 1, characterized in that: The two connecting plates at both ends are parallel to each other.

3. The precast column hoisting device according to claim 1, characterized in that: The 90-degree bending plate and the hoisting clamp are both made of steel plates.

4. The precast column hoisting device according to claim 1, characterized in that: The connecting plate and the lower part of the hoisting clamp are each provided with three high-strength bolt holes arranged vertically, with the distance between the holes being greater than 1.5 times the hole diameter.

5. The precast column hoisting device according to claim 1, characterized in that: The upper circumference of the hoisting hole on the hoisting clamp is fully welded with reinforcing steel plates.

6. The precast column hoisting device according to claim 1, characterized in that: The outer surface of the 90-degree curved plate is fixed with reinforcing ribs, which are arranged along the length of the 90-degree curved plate.

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