Self-elevating safety picking net structure for silo construction

Abstract

The invention relates to the technical field of building construction, in particular to a self-elevating safety picking net structure for silo construction. A plurality of longitudinal sliding rails are arranged on the silo wall at intervals in the circumferential direction, an annular frame which is located on the outer side of the silo wall and is horizontally arranged is jointly connected into the sliding rails in a sliding mode, a traction rope is connected to the top of the annular frame, and a safety net is laid on the annular frame. By arranging the longitudinal sliding rail fixedly connected with the silo wall and the annular frame in sliding fit with the longitudinal sliding rail, the protection coverage range in the horizontal direction is expanded. The annular frame and the safety net can be controlled to ascend and descend along the sliding rail through the traction rope, so that safety protection can be conveniently adjusted along with the construction height of the silo, the manual operation amount, the high-altitude operation time and potential risks caused by repeated disassembly, installation and transfer of the safety net in a traditional mode are greatly reduced, and the construction efficiency and safety are improved. And the method better adapts to the rhythm of modern slip-form construction.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically a self-elevating safety cantilever structure for silo construction. Background Technology

[0002] In the construction of high-rise and special structure buildings, especially in the slipform construction of concrete silos, safety protection for high-altitude operations is always a core aspect concerning the life and property safety of construction workers. These types of projects are high-risk sub-projects, with high working surfaces and concentrated risks, placing extremely stringent requirements on the reliability, effectiveness, and coordination with construction techniques of safety protection facilities. Currently, the traditional protection solutions commonly used in the industry mostly focus on the direct enclosure of the working platform, such as installing guardrails and toe boards on the slipform platform, and suspending dense-mesh safety nets vertically or horizontally below, aiming to create a closed working space. These methods have provided basic guarantees for construction safety in long-term practice.

[0003] However, with advancements in construction technology and increasingly refined project management requirements, the limitations of traditional safety nets have become increasingly apparent. On one hand, their protective coverage is typically limited to the vicinity of the platform, leaving blind spots for materials or tools that may fall further during construction activities, failing to achieve comprehensive, three-dimensional interception. On the other hand, suspended safety nets are often fixed to the structure via temporary bindings or simple connectors, making the connections prone to loosening and resulting in insufficient overall stability. They are susceptible to detachment or damage in strong winds or other severe weather conditions, or from unexpected impacts, posing a challenge to the long-term reliability of the protection. Furthermore, the installation, dismantling, and upward transfer of traditional safety nets often rely heavily on manual labor, involving cumbersome procedures and lengthy processes. This not only increases workers' working hours and labor intensity at height but may also introduce new safety hazards due to the numerous operational steps, making it difficult to fully match the efficient, precise, and safe pace of modern slipform construction. Therefore, developing a safety protection device that can be stably integrated with the silo structure, easily adjusted according to the construction progress, and provides more comprehensive protection, based on existing protective measures, has become a pressing technical challenge for the industry. Summary of the Invention

[0004] The present invention aims to solve the above problems, thereby providing a self-elevating safety cantilever structure for silo construction that improves efficiency.

[0005] The technical solution adopted by the present invention to solve the aforementioned problem is as follows:

[0006] A self-elevating safety net structure for silo construction includes multiple longitudinal slide rails spaced circumferentially on the silo wall. A horizontally arranged annular frame located on the outer side of the silo wall is slidably connected within the slide rails. A traction rope is connected to the top of the annular frame, and a safety net is laid on the annular frame.

[0007] The present invention, which adopts the above technical solution, has the following prominent features compared with the prior art:

[0008] By installing longitudinal sliding rails fixed to the silo wall and a sliding ring frame, a stable and movable horizontal protective platform is constructed. This structure effectively solves the problem of loosening and falling off traditional suspended safety nets, enhances the reliability of the connection between the safety net and the main structure, and expands the horizontal protective coverage. Simultaneously, the ring frame, along with the safety net, can be raised and lowered along the sliding rails using traction ropes, allowing for convenient adjustment of safety protection according to the silo construction height. This significantly reduces the manual labor, high-altitude work time, and potential risks associated with the repeated disassembly, installation, and relocation of safety nets in traditional methods, contributing to improved construction efficiency and safety, and better adapting to the pace of modern slipform construction.

[0009] As a preferred embodiment, a further technical solution of the present invention is:

[0010] Furthermore, the annular frame includes horizontal steel pipes equal in number to the slide rails. Multiple layers of arc-shaped connecting pipes are fixed at intervals along the circumference of the annular frame between adjacent horizontal steel pipes. The inner ends of the horizontal steel pipes are slidably engaged in the corresponding slide rails. Through the combination of horizontal steel pipes and connecting pipes, the annular frame possesses sufficient structural rigidity and integrity, enabling it to stably support the safety net and resist deformation. The multi-layered connecting pipes enhance the load-bearing capacity of the frame without excessively increasing the size of individual components, allowing it to withstand certain impact loads while ensuring the guiding function of the frame's smooth sliding within the slide rails.

[0011] Furthermore, a T-shaped longitudinal opening is provided on the side of the slide rail away from the silo wall. A slider is attached to one end of the horizontal steel pipe and engages within this opening. A pulley is connected to the side of the slider facing the inside of the opening, creating a reliable sliding connection mechanism. The cooperation between the T-shaped opening and the slider prevents the annular frame from accidentally detaching from the slide rail in the horizontal direction, enhancing the stability of the connection. The pulley transforms the sliding friction between the frame and the slide rail into rolling friction, effectively reducing resistance during lifting and lowering, making the traction lifting operation more effortless and smooth, and helping to extend the service life of related components.

[0012] Furthermore, airbags are wrapped around the horizontal steel pipe sections between adjacent connecting pipes. The arrangement of these airbags provides additional cushioning and shock absorption for the safety net. When a falling object impacts the safety net, the airbags can absorb some of the impact energy through deformation, reducing the direct impact force on the frame structure and lowering the risk of the safety net rupture due to instantaneous overload. The placement of the airbags wrapped around the horizontal steel pipes also takes into account the additional protection that the frame itself may require.

[0013] Furthermore, a lifting ring connected to the traction rope is installed at the top of the inner end of the horizontal steel pipe. The design of the traction point helps to achieve synchronous and stable lifting and lowering of the entire ring frame, avoiding frame tilting or jamming due to uneven force, thereby improving the control accuracy and operational safety of the lifting process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the connection structure between the horizontal steel pipe and the slide rail in an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the inner end structure of the horizontal steel pipe in an embodiment of the present invention;

[0017] The components in the diagram are labeled as follows: 1. Silo wall; 2. Slide rail; 3. Horizontal steel pipe; 4. Connecting pipe; 5. Sliding block; 6. Pulley; 7. Traction rope; 8. Safety net; 9. Safety airbag. Detailed Implementation

[0018] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0019] A self-elevating safety net structure for silo construction includes multiple longitudinal slide rails 2 spaced circumferentially along the silo wall 1. Hooks are welded to the back of the rails to match the pre-embedded parts of the silo wall 1, ultimately achieving ground connection. A horizontally arranged annular frame located outside the silo wall 1 is slidably connected within the slide rails 2. The annular frame is made of Q235 steel pipe and connected to the outside. A traction rope 7 is connected to the top of the annular frame. In practical applications, the upper end of the traction rope 7 can be connected to lifting equipment such as a winch or electric hoist. A safety net 8, made of polyester fiber woven mesh, is laid on the annular frame and connected to the annular frame by high-strength nylon rope.

[0020] Furthermore, the annular frame includes horizontal steel pipes 3 in the same number as the slide rails 2. Multiple layers of arc-shaped connecting pipes 4 are fixed at intervals along the circumference of the annular frame between adjacent horizontal steel pipes 3. The inner ends of the horizontal steel pipes 3 are slidably engaged in the corresponding slide rails 2. Through the combination of the horizontal steel pipes 3 and the connecting pipes 4, the annular frame possesses sufficient structural rigidity and integrity, enabling it to stably support the safety net 8 and resist deformation. The arrangement of multiple connecting pipes 4 enhances the load-bearing capacity of the frame without excessively increasing the size of individual components, allowing it to withstand certain impact loads while ensuring the guiding function of the frame's smooth sliding within the slide rails 2.

[0021] Furthermore, the slide rail 2 has a T-shaped longitudinal opening on the side facing away from the silo wall 1. One end of the horizontal steel pipe 3 has a slider 5 that is engaged in the opening. A pulley 6 is connected to the side of the slider 5 facing the inside of the opening, thus constructing a reliable sliding connection mechanism. The cooperation between the T-shaped opening and the slider 5 can prevent the annular frame from accidentally dislodging from the slide rail 2 in the horizontal direction, enhancing the stability of the connection. The pulley 6 transforms the sliding friction between the frame and the slide rail 2 into rolling friction, which can effectively reduce the resistance during the lifting process, making the traction lifting operation more effortless and smooth, and helping to extend the service life of related components.

[0022] Furthermore, airbags 9 are wrapped around the horizontal steel pipe 3 between adjacent connecting pipes 4. The arrangement of airbags 9 provides additional cushioning and shock absorption for the safety net 8. The airbags 9 can be made of materials with certain strength and elasticity, such as neoprene rubber, and are fixed to the steel pipe by reinforced Velcro or straps. When a falling object impacts the safety net 8, the airbag can absorb some of the impact energy through deformation, reducing the direct impact force on the frame structure and lowering the risk of the safety net 8 breaking due to instantaneous overload. The placement of the airbags wrapped around the horizontal steel pipe 3 also takes into account the additional protection that the frame itself may need.

[0023] Furthermore, a lifting ring connected to the traction rope 7 is provided at the top of the inner end of the horizontal steel pipe 3. By setting multiple evenly distributed lifting rings as traction points and using a synchronous control system (such as using multiple synchronous motors or PLC control) to coordinate the movement of each traction rope 7, the design of the traction points helps to achieve synchronous and stable lifting and lowering of the entire ring frame, avoiding frame tilting or jamming due to uneven force, thereby improving the control accuracy and operational safety of the lifting process.

[0024] By combining multiple longitudinal slide rails 2 spaced circumferentially along the silo wall 1 with a horizontal annular frame slidably connected to its outer side, a stable and horizontally movable protective platform is provided for construction. Its structural advantage lies in the annular frame, which consists of horizontal steel pipes 3 equal in number to the slide rails 2, and multiple layers of arc-shaped connecting pipes 4 fixed circumferentially between adjacent horizontal steel pipes 3. This gives the frame good overall rigidity and load-bearing capacity, stably supporting the safety net 8 and resisting deformation, effectively improving the shortcomings of traditional suspended safety nets, such as easy loosening of connection points and insufficient overall stability. The slide rails 2 have T-shaped longitudinal openings on the side facing away from the silo wall 1, and the inner ends of the horizontal steel pipes 3 have sliders 5 with pulleys 6 that are engaged in the openings. This sliding connection mechanism not only prevents the frame from horizontally detaching through the T-shaped fit, enhancing the reliability of the connection, but also ensures stability through the pulleys 6. Converting sliding friction into rolling friction makes the traction and lifting process more effortless and stable, reducing the cumbersome operation and safety hazards caused by manual adjustment; the safety airbags 9 wrapped on the horizontal steel pipe 3 sections between adjacent connecting pipes 4 can absorb energy through deformation when a falling object impacts, providing additional cushioning, reducing the direct impact on the frame and net, and helping to reduce the risk of damage to the safety net 8; the lifting rings set at the top of the inner end of the horizontal steel pipe 3 and connected to the traction rope 7 serve as clear traction points, and with possible synchronous control, help to achieve stable and synchronous lifting of the entire frame, avoiding tilting and jamming, so that the safety protection can be easily adjusted with the construction height, reducing the amount of manual operation, high-altitude operation time and potential risks caused by the repeated disassembly, installation and transfer of safety nets in traditional methods, and improving the durability and reliability of the protection and construction efficiency.

[0025] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. A self-elevating safety cantilever structure for silo construction, characterized in that: Multiple longitudinal slide rails are spaced around the silo wall. A horizontally arranged annular frame located on the outside of the silo wall is slidably connected to the slide rails. A traction rope is connected to the top of the annular frame, and a safety net is laid on the annular frame.

2. The self-elevating safety net structure for silo construction according to claim 1, characterized in that: The ring frame includes horizontal steel pipes of the same number as the slide rails. Multiple layers of arc-shaped connecting pipes are fixed between adjacent horizontal steel pipes at circumferential intervals along the ring frame. The inner ends of the horizontal steel pipes are slidably engaged in the corresponding slide rails.

3. The self-elevating safety net structure for silo construction according to claim 2, characterized in that: The slide rail has a T-shaped longitudinal opening on the side away from the silo wall. One end of the horizontal steel pipe has a slider that is locked in the opening, and a pulley is connected to the side of the slider facing the inside of the opening.

4. The self-elevating safety net structure for silo construction according to claim 2, characterized in that: Safety airbags are wrapped around the horizontal steel pipe sections between two adjacent connecting pipes.

5. The self-elevating safety net structure for silo construction according to claim 1, characterized in that: A lifting ring connected to a traction rope is installed at the top of the inner end of the horizontal steel pipe.

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