Automatic unhooking device for hoisting steel structure

Abstract

An automatic unhooking device for steel structure hoisting comprises an inverted-U-shaped ring, an outer pipe, an inner rod and a spring and is characterized in that a sling is arranged at the top end of the inverted-U-shaped ring, the outer pipe is a steel pipe with a certain length, one end of the outer pipe is fixedly arranged on the outer edge of a hole, the spring is arranged between the inner rod and the outer pipe, one end of the spring is welded to the outer side of the inverted-U-shaped ring, and the other end of the spring is welded to the outer side of the inverted-U-shaped ring. When the inner rod is used for hoisting operation, the limiting rod is fixed in the limiting groove along the outer pipe sliding way, a hoisted object and the inverted-U-shaped ring are connected and fixed, the hoisted object is hoisted to a to-be-installed position through a steel wire rope on the upper portion of the inverted-U-shaped ring to be installed, and after installation is completed, the limiting rod is shifted through a thin rope connected with the limiting rod, and then the hoisted object is lifted to the to-be-installed position. The inner rod limiting rod rebounds into the outer pipe along the sliding way through the elastic force of the spring to achieve automatic unhooking. The automatic unhooking device for steel structure hoisting has the advantages that the automatic unhooking device is simple in structure and convenient to manufacture, the construction speed is increased, the construction safety is guaranteed, and the engineering cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of construction engineering, and in particular relates to an automatic unhooking device for steel structure hoisting. Background Art

[0002] With the economic and social development of our country, the number of steel structure industrialized workshops is increasing, which can be specifically divided into light and heavy steel structure workshops. Industrial and civil construction facilities built with steel are called steel structures. The characteristics of steel structure workshops are: light weight, high strength and large span of steel structure buildings. The construction period of steel structure buildings is short, which reduces the investment cost accordingly. Steel structure buildings have high fire resistance and strong corrosion resistance. Steel structure buildings are easy to move and have more extensive applications for recycling without pollution. However, when the steel structure is hoisted, it is generally tied with steel wire ropes before hoisting. After hoisting, the staff needs to climb to the upper part of the steel structure and dismantle the steel wire ropes, but this method is more dangerous and troublesome when dismantling the steel wire ropes, and affects the hoisting efficiency of the steel structure.

[0003] Therefore, the known steel structure hoisting method has the above-mentioned inconveniences and problems. Summary of the invention

[0004] The purpose of the present invention is to provide a safe and reliable automatic unhooking device for steel structure hoisting.

[0005] To achieve the above purpose, the technical solution of the present invention is: An automatic unhooking device for steel structure hoisting, comprising an inverted U-shaped ring, an outer tube, an inner rod, and a spring, wherein: The top of the inverted U-shaped ring is provided with a sling, and the two supporting rods at the lower end of the inverted U-shaped ring are provided with corresponding holes; The outer tube is a steel tube of a certain length, one end of the outer tube is fixedly arranged at the outer edge of a hole, the other end of the outer tube is provided with a slideway and a limit groove, and the end of the outer tube is provided with a base. The inner rod is a steel rod of a certain length, which is arranged in the outer tube, an end plate is arranged at the end of the inner rod, a limit rod is arranged on the inner rod, and the limit rod is connected with a thin rope; The spring is arranged between the inner rod and the outer tube, one end of the spring is welded to the outside of the inverted U-shaped ring, and the other end of the spring is fixed to the inner rod limit rod; Among them: when the inner rod is hoisting, the limit rod is fixed in the limit groove along the outer tube slideway, and the hoisted object is connected and fixed to the inverted U-shaped ring, and is hoisted to the installation position through the steel wire rope on the upper part of the inverted U-shaped ring for installation. After the installation is completed, the thin rope connected to the limit rod is pulled, and the spring force is used to rebound the inner rod limit rod along the slideway to the outer tube to realize automatic unhooking.

[0006] The automatic unhooking device for steel structure hoisting of the present invention can be further implemented by adopting the following technical measures.

[0007] The aforementioned automatic unhooking device for steel structure hoisting, wherein the inner rod can be stably placed between the two supporting rods at the lower end of the inverted U-shaped ring during the hoisting operation, thereby achieving a steel U-shaped buckle for hoisting.

[0008] After adopting the above technical solution, the automatic unhooking device for steel structure hoisting of the present invention has the following advantages: 1. The automatic unhooking device has a simple structure and is easy to manufacture; 2. Improve construction speed and ensure construction safety; 3. Reduce project costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the structure of the automatic unhooking device according to an embodiment of the present invention, wherein the inner rod is placed between the two supporting rods at the lower end of the inverted U-shaped ring; Figure 2 Another structural schematic diagram of the automatic unhooking device according to an embodiment of the present invention, in which the inner rod is retracted and the unhooking state is opened; Figure 3 Schematic diagram of the connection between the limiting rod and the thin rope according to an embodiment of the present invention. DETAILED DESCRIPTION

[0010] The present invention is further described below in conjunction with embodiments and accompanying drawings.

[0011] Example 1 Please refer to Figure 1-Figure 3 The automatic unhooking device for steel structure hoisting of the present invention is provided with a steel wire rope 1. The steel wire rope 1 of the automatic unhooking device is connected to an inverted U-shaped ring 2, a support rod of the inverted U-shaped ring is welded to an outer tube 5, a slideway 9 and a limit groove 8 are arranged on the outer tube, and a base 6 is arranged at the end. An inner rod 4 is arranged in the outer tube, an end plate 10 is arranged at its end, and a limit rod 7 is arranged on the inner rod; a spring 3 is arranged between the inner rod and the outer tube, one end of the spring is welded to the outside of the U-shaped ring and the inside of the outer tube, and the other end of the spring is fixed to the limit rod of the inner rod; when the inner rod is hoisting, its limit rod is fixed in the limit groove along the slideway of the outer tube, the hoisted object is connected and fixed with the U-shaped ring, and is hoisted to the installation position to be installed through the steel wire rope on the upper part of the U-shaped ring, and after the installation is completed, the thin rope 11 connected to the limit rod is toggled, and the inner rod limit rod is rebounded along the slideway to the inner rod by the spring force to realize automatic unhooking.

[0012] The present invention has substantial characteristics and significant technical progress. Compared with the traditional practice, the automatic unhooking device for steel structure hoisting of the present invention can realize automatic unhooking by pulling a thin rope connected to the limit rod after installation, and utilizing the spring force to rebound the inner rod limit rod along the slideway to the outer rod, thereby improving the construction speed, ensuring the construction safety and reducing the cost, and has been recognized by the operating workers and the management and use units.

[0013] The above embodiments are only for the purpose of illustrating the present invention, but not for limiting the present invention. A person skilled in the art may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.

Claims

1. An automatic unhooking device for steel structure hoisting, comprising an inverted U-shaped ring, an outer tube, an inner rod, and a spring, characterized in that: The top of the inverted U-shaped ring is provided with a sling, and the two supporting rods at the lower end of the inverted U-shaped ring are provided with corresponding holes; The outer tube is a steel tube of a certain length, one end of the outer tube is fixedly arranged at the outer edge of a hole, the other end of the outer tube is provided with a slideway and a limit groove, and the end of the outer tube is provided with a base. The inner rod is a steel rod of a certain length, which is arranged in the outer tube, an end plate is arranged at the end of the inner rod, a limit rod is arranged on the inner rod, and the limit rod is connected with a thin rope; The spring is arranged between the inner rod and the outer tube, one end of the spring is welded to the outside of the inverted U-shaped ring, and the other end of the spring is fixed to the inner rod limit rod; Among them: when the inner rod is hoisting, the limit rod is fixed in the limit groove along the outer tube slideway, and the hoisted object is connected and fixed to the inverted U-shaped ring, and is hoisted to the installation position through the steel wire rope on the upper part of the inverted U-shaped ring for installation. After the installation is completed, the thin rope connected to the limit rod is pulled, and the spring force is used to rebound the inner rod limit rod along the slideway to the outer tube to realize automatic unhooking.

2. The automatic unhooking device for steel structure hoisting according to claim 1, characterized in that: The inner rod can be stably placed between the two supporting rods at the lower end of the inverted U-shaped ring during the hoisting operation, thereby achieving a steel U-shaped buckle for hoisting.

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