An operating device for welding upper chord members of a hollow spherical net rack

By designing a hook-type suspension device and a safety rope operating device on the ball net frame, the instability and safety hazards of high-altitude operations during ball net frame construction were solved, providing a stable working platform and improving construction efficiency and safety.

CN224452202UActive Publication Date: 2026-07-03CHANGZHOU DONGWU STEEL STRUCTURE GRID CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU DONGWU STEEL STRUCTURE GRID CO LTD
Filing Date
2025-04-22
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In the existing technology, the traditional scaffolding erection for high-altitude operations during the construction of the ball net frame is complex and unstable, and the suspended safety ropes cannot provide a stable operating platform, resulting in safety hazards and low construction efficiency.

Method used

Design an operating device that includes support components, scaffolding boards, and safety ropes. The device is suspended from the upper chord of the net frame using a hook-type suspension member. It slides into the intersection area by gravity and is constrained by geometric constraints, providing a stable working platform. The hook-type suspension member made of threaded steel ensures uniform force distribution, and the safety rope is fixed to the transverse chord member to provide additional safety protection.

Benefits of technology

It has created an efficient and safe aerial work platform, which has improved construction efficiency and safety, reduced installation errors and dismantling time, and enhanced the operational stability and safety of construction personnel.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides an operating device for welding the upper chord members of a hollow ball net frame. Installed on the diagonal web members of the net frame, it includes a support component, scaffolding boards, and a safety rope. The support component comprises multiple hook-type suspension members made of threaded steel, with both ends bent in the same direction to form a hook structure. The hook-type suspension members are initially placed on the chord members and slide along them under gravity and pressure, entering the intersection area between the chord member and the ball joint, where they are constrained by the geometry of this area, achieving stable support. The scaffolding boards are installed on the support component and include at least two parallel planks. One end of the safety rope is connected to the worker's safety belt, and the other end is fixed to a transverse chord member of the ball net frame. This invention is easy to install, structurally stable, and improves the safety and construction efficiency of high-altitude operations on ball net frames.
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Description

Technical Field

[0001] This utility model relates to the field of construction technology of welded ball grid frame, and in particular to an operating device for welding the upper chord members of a hollow ball grid frame. Background Technology

[0002] A spherical grid structure is a common type of large-span spatial structure, widely used in stadiums, airport terminals, industrial plants, and other buildings. A spherical grid structure consists of multiple spherical nodes and chord members, connected by welding or bolting to form a stable support system. During the construction of a spherical grid structure, workers need to perform welding or installation work on the upper chord members at heights; therefore, a safe and reliable aerial work platform is crucial.

[0003] In existing technologies, construction workers typically use temporary traditional scaffolding or suspended safety ropes for high-altitude operations. However, these methods have the following problems: First, they are complex to erect. Traditional scaffolding is time-consuming to set up, and the installation and dismantling processes are cumbersome, making it unsuitable for the flexible needs of high-altitude operations. Second, they have poor stability. Suspended safety ropes can only provide personnel safety protection but cannot provide a stable operating platform for construction workers, affecting construction accuracy and efficiency. Finally, they pose safety hazards. Traditional high-altitude operation methods lack specific optimization for spherical grid structures, resulting in problems such as unstable suspension and uneven stress, which can easily lead to worker imbalance or platform slippage, increasing construction risks.

[0004] Therefore, to address the aforementioned issues, it is necessary to provide a stable, safe, and efficient operating device suitable for the upper chord members of the ball net frame, in order to improve construction efficiency and reduce safety hazards associated with working at heights. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an operating device suitable for welding the upper chord members of the ball net frame. This device can be stably suspended on the upper chord members of the ball net frame, providing a safe and stable working platform for construction personnel. At the same time, it has the characteristics of convenient installation, reliable structure, balanced force, and high safety, so as to improve the work efficiency of ball net frame construction and reduce the safety risks of high-altitude operations.

[0006] The technical solution adopted by this utility model to solve its technical problem is: an operating device for welding the upper chord members of a hollow ball net frame, which is installed on the diagonal web members of the ball net frame, including a support component, a scaffold board and a safety rope. The support component includes multiple hook-type suspension members that are evenly hooked onto the chord members on the ball net frame. The scaffold board is installed on the support component and suspended on the ball net frame by the hook-type suspension members.

[0007] Furthermore, the support component includes at least three hook-type suspension elements.

[0008] Furthermore, the hook-type suspension component is made of threaded steel, with both ends bent in the same direction to form a hook structure.

[0009] Furthermore, the hook portion of the hook-type suspension component is initially placed on the chord member of the ball net frame, and slides along the chord member under the action of gravity and pressure, entering the intersection area of ​​the chord member and the ball node and being constrained by the geometric constraints of this area.

[0010] Furthermore, when the hook-type suspension is installed, the hook portion faces the common connecting ball joint on the two chord members it hooks.

[0011] Furthermore, the scaffold plank includes at least two parallel treads.

[0012] Furthermore, one end of the safety rope is connected to the safety belt of the construction worker, and the other end is connected to the transverse chord member on the net frame.

[0013] The beneficial effects of this utility model are:

[0014] This invention utilizes a hook-type suspension structure design to enable the device to be stably suspended on the upper chord of the ball net frame. It enters the intersection area of ​​the ball node and the upper chord by gravity sliding and is constrained by the geometric constraints of this area, thus achieving stable support and improving the stability of the construction platform.

[0015] This utility model uses a hook-type suspension component made of threaded steel, with both ends bent in the same direction to form a hook structure, ensuring uniform stress on the ball net frame structure, enhancing load-bearing capacity, and improving the durability and reliability of the operating device.

[0016] When installing the hook-type suspension component of this utility model, the hook part faces the common connecting ball joint of the two upper chord members it hooks, and can naturally slide to a stable position without the need for additional fasteners, achieving self-locking support, improving construction safety, and reducing installation errors.

[0017] The support component of this utility model includes at least three hook-type suspension components to ensure the stability of the support platform, so that the scaffold boards can be evenly stressed, avoid tilting or swaying, and improve the operational safety and comfort of construction workers.

[0018] The scaffolding plank of this invention includes at least two parallel planks, providing sufficient working space to ensure that construction workers can stand, move and operate tools on the platform, thereby improving construction efficiency.

[0019] The safety rope of this utility model is fixed to the transverse chord of the ball net frame. One end of the rope is connected to the safety belt and the other end is connected to the transverse chord, so that the construction workers can obtain additional safety protection when working at height, prevent accidental falls, and improve safety.

[0020] The operating device of this utility model does not require the use of additional fixing devices, making installation and disassembly more convenient. Construction personnel only need to place the hook-type suspension component on the upper chord of the net frame, and it can slide into a stable position by gravity, which greatly improves the installation efficiency. At the same time, it is easy to disassemble and can be reused. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] In the diagram: 1-Ball net frame structure; 11-Chord member; 12-Ball node; 2-Supporting component; 21-Hook-type suspension component; 3-Scaffold board; 31-Step; 4-Safety rope. Detailed Implementation

[0023] The present invention will now be further described with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] like Figure 1 As shown, this utility model provides an operating device for welding the upper chord members of a hollow ball grid frame. This device is applicable to the chord members 11 on the ball grid frame structure 1, providing a safe and stable working platform for construction personnel. It can be used for high-altitude construction scenarios such as welding and installation of ball grid frames.

[0025] The operating device of this utility model includes a support component 2, a scaffold board 3, and a safety rope 4. The support component 2 is used to support the scaffold board 3, the scaffold board 3 provides a working platform for construction workers, and the safety rope 4 ensures the safety of construction workers.

[0026] The support component 2 includes multiple hook-type suspension members 21, made of threaded steel, which have high strength and durability. Both ends of the hook-type suspension members 21 are bent in the same direction to form a hook structure, which can adapt to the installation requirements of the chord members 11 on the net frame. During installation, the hook-type suspension members 21 are initially placed on the chord members 11 on the net frame, with the hook portion facing the common ball joint 12 of the two chord members 11 they are hooked to. Under the action of gravity and construction loads, the hook-type suspension members 21 slide along the chord members 11, eventually entering the intersection area of ​​the chord members 11 and the ball joint 12, and are constrained by the geometric constraints of this area to achieve stable support. In the stable position, the hook-type suspension members 21 can firmly support the scaffold boards 3, providing a reliable working platform, enabling construction personnel to work safely.

[0027] The scaffold plank 3 is installed on the support component 2 and includes at least two parallel planks 31, ensuring sufficient working space for construction workers. The planks 31 are fixed to multiple hook-type suspension members 21, which makes the scaffold plank 3 evenly stressed, prevents tilting or slippage, and improves construction stability. Due to the even distribution of multiple hook-type suspension members 21, the load-bearing capacity of the scaffold plank 3 is enhanced, making it safer and more stable for construction workers to work at heights.

[0028] Safety rope 4 is used to ensure the safety of construction workers and prevent accidental falls. One end is connected to the worker's safety belt, and the other end is fixed to the transverse chord of the ball-and-socket frame structure 1. During high-altitude operations, safety rope 4 provides additional safety protection, effectively preventing accidental falls even if the worker loses balance during operation, thus improving construction safety.

[0029] This utility model's operating device utilizes the self-locking characteristic of the hook-type suspension component 21 under gravity, allowing construction workers to quickly install and disassemble without the need for additional fasteners, significantly improving construction efficiency. Simultaneously, the scaffold board 3 remains stable during construction, preventing workers from being affected by platform sway. The safety rope 4 further enhances the safety of construction workers, making this device structurally sound, easy to operate, and reliable. It is suitable for various ball net frame construction environments, improving both construction efficiency and safety.

[0030] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A kind of operation device of welding upper chord member of hollow ball net rack, it is installed on inclined web member on hollow ball net rack, including support component, scaffold board and safety rope, it is characterized in that: The support component includes multiple hook-type suspension members, which are evenly hooked onto the diagonal web members of the hollow ball net frame. The scaffold boards are installed on the support component and suspended from the ball net frame by the hook-type suspension members. The hook part of the hook-type suspension member is initially placed on the diagonal web members of the hollow ball net frame. Under the action of gravity and pressure, it slides along the chord members and enters the intersection area of ​​the chord members and the ball node, and is constrained by the geometric constraints of this area. When the hook-type suspension member is installed, the hook part faces the common connecting ball node of the two diagonal web members it hooks. One end of the safety rope is connected to the safety belt of the construction personnel, and the other end is connected to the transverse chord members on the ball net frame.

2. The operating device for welding the upper chord members of a hollow sphere grid according to claim 1, characterized in that: The support component includes at least two hook-type suspension elements.

3. The operating device for welding the upper chord members of a hollow sphere grid according to claim 2, characterized in that: The hook-type suspension component is made of threaded steel, with both ends bent in the same direction to form a hook structure.

4. The operating device for welding the upper chord members of a hollow sphere grid according to claim 1, characterized in that: The scaffold planks include at least two parallel planks.