People-climbing-free unhooking device for hoisting steel column of steel structure

Abstract

The invention discloses a people-getting-up-free unhooking device for steel structure steel column hoisting. The people-getting-up-free unhooking device comprises a U-shaped buckle, a buckle clamping ring is arranged at the end of the U-shaped buckle, a telescopic shaft stick is arranged in the buckle clamping ring, one end of the shaft stick is connected with a transmission rod, a rotating ring is arranged at the end of the transmission rod, a tripping rope is arranged on the rotating ring, and the tripping rope is perpendicular to an operation face. A sleeve is arranged on the outer side of the buckle clamping ring, one end of the shaft roller and the transmission rod are arranged in the sleeve, the transmission rod is sleeved with a high-strength spring, one end of the high-strength spring is fixedly connected with the shaft roller, and the other end of the high-strength spring is fixedly connected with the inner wall of the sleeve. An anti-falling rope is further arranged on the rotating ring and connected with the hoisting device. Compared with the prior art, during construction of a high-rise steel structure building, after a component is installed in place and unloaded through the device, the internal component is unhooked through the dragging effect of the tripping rope, risks such as falling caused by manual high-altitude operation are avoided, the working efficiency is improved, and it is ensured that the construction progress is stably advanced.

Description

Technical Field

[0001] The invention relates to the technical field of lifting and hoisting, and in particular to a person-free unhooking device for lifting a steel column of a steel structure. Background Art

[0002] In construction, the hoisting of steel columns of steel structure buildings is a key link. In the traditional hoisting construction process of steel structure steel columns, manual unhooking is usually adopted. The specific operation is that after the steel column is hoisted to the designated installation position by the crane and initially fixed, the operator needs to climb to the hook of the steel column with the help of climbing equipment (such as scaffolding, climbing vehicle, etc.), manually unhook the hook or operate the relevant unhooking device to complete the separation of the steel column and the hook. For example, in the construction of some multi-story or high-rise steel structure buildings, workers often have to climb to a height of several meters or even tens of meters to perform unhooking operations, risking many safety risks such as falling from heights and collisions with hoisted objects. This method not only poses a serious threat to the personal safety of the operators, but also the entire unhooking process is inefficient. It often prolongs the hoisting cycle of the steel column due to the uncertainty of manual operation (such as the hook is stuck and difficult to unhook, the operator is not skilled in operation, etc.), thereby affecting the progress of the entire building construction.

[0003] As the construction industry pays more and more attention to construction safety, relevant safety regulations and standards are becoming increasingly stringent. Working at heights has always been a high-incidence link in construction safety accidents, and the safety hazards of the traditional manual unhooking method of steel column hoisting have become increasingly prominent. There is an urgent need for a technical means to avoid manual unhooking operations at heights, so as to reduce the probability of safety accidents, protect the lives of construction workers, and meet the increasingly stringent construction safety management requirements.

[0004] At the same time, the scale of steel structure buildings has been getting larger and larger in recent years, and the number and size of steel columns have also increased accordingly. Faced with the task of hoisting a large number of steel columns, if we still rely on the traditional manual unhooking method, it will greatly slow down the construction speed. For example, in the construction of a large steel structure plant, there may be hundreds of steel columns that need to be hoisted. It takes a long time to manually unhook each steel column, and the overall construction period will be greatly extended. Therefore, in order to adapt to the rapid development of the construction industry and the needs of large-scale steel structure construction, improving the efficiency of the steel column hoisting link has become an urgent problem to be solved, which has also prompted the development of unhooking devices without people. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a steel structure steel column hoisting unhooking device that does not require people to climb on board. Pulling the release rope on the operating surface causes the internal components to unhook, thereby avoiding the risks of falling caused by manual high-altitude operations, improving work efficiency, and ensuring the steady progress of construction.

[0006] To achieve this technical purpose, the present invention adopts the following scheme: A device for lifting a steel column of a steel structure without people climbing on it comprises a U-shaped buckle, a buckle ring is provided at the end of the U-shaped buckle, a retractable shaft stick is provided inside the buckle ring, one end of the shaft stick is connected to a transmission rod, a swivel is provided at the end of the transmission rod, a release rope is provided on the swivel, and the release rope hangs down to an operating surface; a sleeve is provided on the outer side of the buckle ring, one end of the shaft stick and the transmission rod are provided in the sleeve, a high-strength spring is sleeved on the transmission rod, one end of the high-strength spring is fixedly connected to the shaft stick, and the other end of the high-strength spring is fixedly connected to the inner wall of the sleeve; an anti-fall rope is also provided on the swivel, and the anti-fall rope is connected to the lifting device.

[0007] Compared with the prior art, the present invention has the following beneficial effects: The device of the present invention can be used in the construction of high-rise steel structure buildings to quickly and accurately put steel columns in place, and can prevent unhooking during the hoisting process to improve safety. After the components are installed in place and unloaded, the pulling effect of the release rope can be used to cause the internal components to unhook, thereby avoiding the risks of falling caused by manual high-altitude operations, improving work efficiency, and ensuring that the construction progress is steadily advanced.

[0008] Furthermore, a sealing plate is arranged at one end of the sleeve away from the buckle ring, and the high-strength spring is fixedly arranged on the sealing plate of the sleeve. An opening is arranged in the center of the sealing plate, and the transmission rod passes through the opening and can rotate in the opening.

[0009] Furthermore, the shaft rod, the transmission rod and the swivel are an integrated steel component made of wear-resistant high-strength alloy steel.

[0010] Furthermore, the anti-fall rope adopts a 6mm steel wire rope. One end of the anti-fall rope is connected to the swivel, and the other end is connected to the steel wire rope of the lifting device. Both ends are clamped with matching rope clips to prevent falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of a steel column hoisting and unhooking device for a steel structure without requiring people to climb on it according to an embodiment of the present invention; Figure 2 This is a partial cross-sectional view of a sleeve of a steel column hoisting and unhooking device for a steel structure without requiring people to climb on it according to an embodiment of the present invention; The markings in the figure are: 1. U-shaped buckle; 2. Buckle ring; 3. Shaft stick; 4. Sleeve; 5. Transmission rod; 6. High-strength spring; 7. Swivel; 8. Release rope; 9. Anti-fall rope. DETAILED DESCRIPTION

[0012] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail through the following specific implementation methods, but the present invention is not limited thereto.

[0013] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" or "laid on" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0014] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0015] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0016] See also Figure 1 and Figure 2 The present invention provides a device for lifting a steel column of a steel structure without people climbing up, comprising a U-shaped buckle 1, a buckle snap ring 2 is provided at the end of the U-shaped buckle 1, a retractable shaft stick 3 is provided in the buckle snap ring 2, one end of the shaft stick 3 is connected to a transmission rod 5, a swivel 7 is provided at the end of the transmission rod 5, a release rope 8 is provided on the swivel 7, and the release rope 8 is hung to an operating surface; a sleeve 4 is provided on the outer side of the buckle snap ring 2, a sealing plate is provided at the end of the sleeve 4 away from the buckle snap ring 2, an opening is provided in the center of the sealing plate, one end of the shaft stick 3 and the transmission rod 5 are arranged in the sleeve 4, the transmission rod 5 passes through the opening on the sealing plate of the sleeve 4 and can rotate in the opening, a high-strength spring 6 is sleeved on the transmission rod 5, one end of the high-strength spring 6 is fixedly connected to the shaft stick 3, and the other end of the high-strength spring 6 is fixedly connected to the inner wall of the sealing plate of the sleeve 4; an anti-falling rope 9 is also provided on the swivel 7, and the anti-falling rope 9 is connected to the lifting device.

[0017] In some embodiments, the shaft 3, the transmission rod 5 and the swivel 7 are an integral steel component made of wear-resistant high-strength alloy steel.

[0018] More specifically, the U-shaped buckle 1, the buckle ring 2 and the shaft rod 3 constitute a buckle assembly. The U-shaped buckle 1 and the buckle ring 2 are forged with high-strength alloy steel. Their shapes are optimized based on the common design of the lifting ears or lifting holes on the steel columns. They have a suitable opening size and curvature radius, and are connected to the lifting rope of the crane to ensure that the lifting force can be reliably transmitted to the U-shaped buckle 1. The connection has certain wear resistance and fatigue resistance, and can adapt to frequent lifting operations.

[0019] The shaft rod 3 is made of wear-resistant high-strength steel. It can automatically close and form a whole with the U-shaped buckle 1 and the buckle ring 2 through the pushing force of the high-strength spring 6. The connecting part has undergone special strength design and processing technology to ensure that it can firmly hang on the steel column. At the same time, it is necessary to ensure that the hook has sufficient strength and rigidity when bearing the gravity of the steel column without deformation or breakage.

[0020] As a component directly connected to the steel column and bearing its weight, the main function of the buckle assembly is to provide a stable hanging point for the steel column to ensure that the steel column can be firmly hung on the U-shaped buckle 1 during the lifting process. At the same time, it needs to have a certain degree of versatility and be able to adapt to steel columns of different specifications (such as different diameters of lifting ears, different cross-sectional shapes of lifting holes, etc.), so as to be convenient for use in a variety of steel structure construction scenarios.

[0021] The sleeve 4 and the high-strength spring 6 form an anti-slip device, which is made of wear-resistant and high-hardness metal material. The thrust of the high-strength spring 6 is used to automatically return the shaft stick 3 to the buckle ring 2, so that it is in a normally closed state. When the lifting and hoisting operation is performed, due to the gravity of the component, the steel column is firmly locked to prevent it from shaking or accidentally unhooking during the lifting process, and the anti-slip effect of the device can be better guaranteed. This device makes full use of mechanical and mechanical principles to eliminate complex and expensive electronic components such as sensors, automatically returns to its original position, is safe and reliable, and is a key part to ensure the safety of the steel column during the lifting process. Since the steel structure steel column is usually heavy, once it accidentally falls off from the buckle during the lifting process, it will cause a serious safety accident, which will not only damage the steel column itself, but also may cause great harm to the personnel, equipment and constructed structures below. The anti-slip device can effectively reduce this risk, ensure the smooth progress of the entire lifting operation, and greatly speed up the construction progress of the steel column installation.

[0022] The swivel 7, the transmission rod 5 and the release rope 8 constitute the release device, wherein the swivel 7, the transmission rod 5 and the shaft rod 3 are an integrated steel component made of wear-resistant high-strength alloy steel. After the steel column is installed, the ground operator uses the release rope 8 to pull the swivel 7 outward, causing the transmission rod 5 to produce a linear motion, thereby pulling the shaft rod 3 in the buckle ring 2, so that the shaft rod 3 moves out of the buckle ring 2, releasing the locking state of the steel column, completing the release action, and then the steel column is separated from the buckle under the action of its own weight and slight external force.

[0023] The tripping device can automatically trip after the steel column is hoisted into place, eliminating the need for manual unhooking operations, greatly improving the safety and efficiency of construction. It is especially suitable for the hoisting construction of a large number of steel columns in steel structures such as high-rise buildings and large industrial plants, which can effectively speed up the construction progress and avoid safety hazards such as falling from heights and misoperation caused by manual operations.

[0024] The anti-fall device is composed of an anti-fall rope 9 and a fixed rope clip. The anti-fall rope 9 adopts a 6mm steel wire rope. One end of the anti-fall rope 9 is connected to the swivel 7, and the other end is connected to the steel wire rope of the lifting device. Both ends are clamped with matching rope clips to prevent falling off. The anti-fall device is another insurance for the rigging to prevent accidents caused by the separation of the rigging and the hook. Although the reliability of the buckle assembly, anti-slip device and release device has been ensured as much as possible during the design and installation process, it is still difficult to completely eliminate the occurrence of some unexpected situations. The existence of the anti-fall device is to minimize the hazards caused by falling objects from high altitudes in extreme cases, and to ensure the safety of personnel, equipment and the entire steel structure construction at the construction site.

[0025] The method of using the unhooking device for lifting steel columns of steel structures without people stepping on them of the present invention is as follows: after the lifting equipment is in place, use a lifting rope (such as a steel wire rope) to connect the U-shaped buckle 1 of the present invention to the crane, pass the shaft stick 3 through the steel column ear seat, and the anti-drop device automatically returns the shaft stick 3 to the buckle clamp ring 2 by the thrust of the high-strength spring 6, and connect the two ends of the anti-fall rope 9 to the lifting steel wire rope and the swivel 7 with the corresponding saddle rope clamps, and fasten them in place. After installation, the steel column is lifted, and a trial lift is first performed to ensure that the rope is firmly connected and the force is evenly applied, and the length of the release rope 8 meets the use requirements, that is, it should be greater than the sum of the length of the steel column, the height of the installation point above the operating surface, and the falling radius. After the trial lifting operation is completed, the formal lifting is carried out, and the steel column is lifted to the designated installation position, and the connection and tightening operation is performed.

[0026] After the steel column is tightened, the hoisting wire rope is unloaded for unhooking operation. The on-site operator uses the release rope 8 to pull the swivel 7 on the operating surface (ground). Since the device of the present invention is subjected to horizontal outward and downward pulling forces, the swivel 7 horizontally pulls the shaft rod 3 to separate it from the buckle buckle 2 and the lifting ear of the buckle assembly. At the same time, the device assembly is subjected to downward pulling force to separate it from the steel column, completing the unhooking operation.

[0027] Finally, it should be noted that the above are only preferred embodiments of the present invention. Of course, those skilled in the art can make changes and modifications to the present invention. If these modifications and variations fall within the scope of the claims of the present invention and their equivalent technologies, they should be considered to be within the scope of protection of the present invention.

Claims

1. A device for lifting a steel column of a steel structure without requiring people to climb on it, comprising a U-shaped buckle (1), a buckle ring (2) being arranged at the end of the U-shaped buckle (1), characterized in that: A retractable shaft stick (3) is arranged inside the buckle buckle (2), one end of the shaft stick (3) is connected to a transmission rod (5), a swivel (7) is arranged at the end of the transmission rod (5), a release rope (8) is arranged on the swivel (7), and the release rope (8) is suspended to the operating surface; a sleeve (4) is arranged outside the buckle buckle (2), one end of the shaft stick (3) and the transmission rod (5) are arranged in the sleeve (4), a high-strength spring (6) is sleeved on the transmission rod (5), one end of the high-strength spring (6) is fixedly connected to the shaft stick (3), and the other end of the high-strength spring (6) is fixedly connected to the inner wall of the sleeve (4); an anti-fall rope (9) is also arranged on the swivel (7), and the anti-fall rope (9) is connected to the lifting device.

2. The unhooking device for lifting steel columns of steel structures without people according to claim 1 is characterized in that: A sealing plate is provided at one end of the sleeve (4) away from the buckle ring (2), and a high-strength spring (6) is fixedly arranged on the sealing plate of the sleeve (4). An opening is provided at the center of the sealing plate, and a transmission rod (5) passes through the opening and can rotate in the opening.

3. The unhooking device for lifting steel columns of steel structures without people according to claim 1 is characterized in that: The shaft rod (3), the transmission rod (5) and the rotating ring (7) are an integral steel component made of wear-resistant high-strength alloy steel.

4. The unhooking device for lifting steel columns of steel structures without requiring people to climb on them according to claim 1 is characterized in that: The anti-fall rope (9) is a 6 mm steel wire rope, one end of which is connected to the swivel (7), and the other end of which is connected to the steel wire rope of the lifting device.

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