Combined protective fence for construction

CN224742142UActive Publication Date: 2026-09-11LIANYUNGANG XIANGYUN INVESTMENT CO LTD
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Patent Information

Application Number
CN202521249684.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-18
Publication Date
2026-09-11
Estimated Expiration
2035-06-18

AI Technical Summary

Technical Problem

[0005]针对现有技术的不足,本实用新型提供了一种建筑施工用组合式防护栏杆,解决了现有的护栏在进行加高操作时,大多仅能通过焊接进行加高,这种方式十分不便,焊接操作需要专业的焊接设备和技术人员,增加了施工成本和时间成本,而且焊接后的护栏难以再次拆卸,不利于防护栏杆的重复使用和存储,也限制了其在不同场景下的灵活应用的技术问题

Benefits of technology

一、当防护栏杆面对不同的施工环境时,需要对其防护高度进行调节改变时,可选择取出单个护栏本体,将其滑动在另一个护栏本体上端,两个护栏本体通过燕尾形滑块、燕尾形滑槽的方式提供更为稳定的滑动效果,且避免两个护栏本体连接时会沿着上端滑出而造成分体的现象,在滑动组装完成后,通过将凸形卡接杆旋拧卡接在弧面L形卡块表面从而完成两个护栏本体的组装固定,这种可滑动叠加增高的方式,提高装置组装操作的灵活性,使防护栏杆适应了更多的使用场景,且护栏本体、水平组装架和固定限位座分体式设计,可节省空闲储存时的占用空间。

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Abstract

The utility model relates to the technical field of protective guardrails, and particularly discloses a combined protective guardrail for building construction, which can be used to adjust the protective height when the protective guardrail faces different construction environments, select a single guardrail body, slide the single guardrail body on the upper end of another guardrail body, provide more stable sliding effect through dovetail-shaped sliding blocks and dovetail-shaped sliding grooves, avoid the phenomenon that the two guardrail bodies are separated when the two guardrail bodies are connected and slide out of the upper end, complete the assembly and fixing of the two guardrail bodies by screwing the convex clamping rod on the surface of the arc L-shaped clamping block after sliding assembly, improve the flexibility of the device assembly operation, make the protective guardrail adapt to more use scenarios, and save the occupied space during idle storage through the split design of the guardrail body, the horizontal assembly frame and the fixed limiting seat.
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Description

Technical Field

[0001] This utility model relates to the field of guardrail technology, and in particular to a combined guardrail for building construction. Background Technology

[0002] Modular safety railings for construction play a crucial role on construction sites, used to block and protect the site, preventing personnel and objects from accidentally entering hazardous areas. Their applications are wide-ranging, covering various construction sites, from residential to commercial buildings, all requiring safety railings to ensure construction safety. Currently, the practical application of this device typically requires the following technologies: 1. A robust connection structure ensures that the various components of the guardrail are firmly connected and can withstand certain external forces; 2. Convenient assembly and disassembly technology, facilitating the rapid erection and dismantling of guardrails at different construction stages; 3. Reliable limiting and fixing technology ensures that the guardrail will not easily shift or deform during use.

[0003] Currently, to achieve the protective function of construction sites, various construction companies have adopted a variety of guardrail equipment and methods. The most common method is the use of traditional fixed guardrails, which form a protective barrier by fixing the guardrails to the ground or building structure. Other methods utilize prefabricated guardrails, assembled using bolts and other methods, offering greater flexibility.

[0004] However, the above methods have a prominent problem: when raising existing guardrails, they can mostly only be done by welding. This method is very inconvenient. Welding requires professional welding equipment and technicians, which increases construction and time costs. Moreover, the welded guardrails are difficult to disassemble again, which is not conducive to the reuse and storage of guardrails and also limits their flexible application in different scenarios. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a modular guardrail for building construction. It solves the problem that when existing guardrails are heightened, they can mostly only be heightened by welding, which is very inconvenient. Welding requires professional welding equipment and technicians, increasing construction and time costs. Moreover, welded guardrails are difficult to disassemble, which is not conducive to the reuse and storage of guardrails and also limits their flexible application in different scenarios.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A modular guardrail for construction includes a guardrail body, a dovetail-shaped slider fixedly connected to the upper end of the guardrail body, horizontal assembly frames on both sides of the guardrail body, fixed limiting seats fixedly connected to the outer surfaces of the two horizontal assembly frames, and fixed bolts threadedly connected to the guardrail body and the two horizontal assembly frames. A dovetail-shaped groove is formed inside the guardrail body, and the dovetail-shaped slider is adapted to the dovetail-shaped groove. An arc-shaped L-shaped locking block is fixedly connected to the outer surface of the guardrail body.

[0007] Preferably, a round rod mounting base is fixedly connected to one end of the outer surface of the guardrail body away from the L-shaped locking block, and a screw handle is rotatably connected to the outer surface of the round rod mounting base.

[0008] Preferably, the inside of the screw handle has a cylindrical through groove, and a support rod is fixedly connected inside the screw handle.

[0009] Preferably, a U-shaped bracket is rotatably connected to the outer surface of the supporting round rod, and a convex snap-fit ​​rod is slidably connected inside the U-shaped bracket.

[0010] Preferably, the convex locking rod has a rectangular locking groove inside, and the arc-shaped L-shaped locking block is engaged inside the rectangular locking groove.

[0011] Preferably, a spring is sleeved on the outer surface of the convex snap-fit ​​rod, and the spring is sleeved on the inner surface of the U-shaped bracket.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. When the guardrail needs to be adjusted for different construction environments, a single guardrail body can be removed and slid onto the top of another guardrail body. The two guardrail bodies provide a more stable sliding effect through dovetail sliders and dovetail grooves, and avoid the phenomenon of the two guardrail bodies sliding out along the top and separating when connected. After the sliding assembly is completed, the two guardrail bodies are assembled and fixed by screwing the convex snap-fit ​​rod onto the surface of the arc-shaped L-shaped snap-fit ​​block. This sliding and stacking height-increasing method improves the flexibility of the device assembly operation, making the guardrail adaptable to more usage scenarios. In addition, the separate design of the guardrail body, horizontal assembly frame and fixed limit seat can save space occupied when not in use.

[0013] 2. After the two guardrail bodies are spliced ​​together, when a locking and limiting operation is required, hold the convex locking rod and fit it onto the surface of the L-shaped locking block. At this time, press down on the screw handle. The operator can insert their fingers into the cylindrical through groove to more easily hold the screw handle. When the screw handle rotates around the round rod mounting base, it pulls the U-shaped bracket downwards eccentrically. At this time, the U-shaped bracket moves downwards, pulling the convex locking rod to stably lock onto the surface of the L-shaped locking block, thus quickly completing the vertical locking and fixing between the two guardrail bodies. The operation of fitting the convex locking rod and pulling the screw handle to rotate is more efficient and faster. Attached Figure Description

[0014] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 Exploded view of the horizontal assembly frame connection of this utility model; Figure 3 This is an exploded view of the arc-shaped L-shaped card block connection of this utility model; Figure 4 This is an exploded view of the convex snap-fit ​​rod connection of this utility model.

[0016] Legend: 11. Guardrail body; 12. Dovetail slider; 13. Horizontal assembly frame; 14. Fixed limit seat; 15. Fixing bolt; 16. Dovetail groove; 17. Arc-shaped L-shaped locking block; 18. Round rod mounting seat; 19. Tightening handle; 21. Supporting round rod; 22. U-shaped bracket; 23. Convex locking rod; 24. Rectangular slot; 25. Spring; 26. Cylindrical through groove. Detailed Implementation

[0017] This application provides a modular guardrail for construction, effectively solving the problem that existing guardrails, when heightened, can mostly only be increased by welding. This method is inconvenient, requires specialized welding equipment and technicians, increases construction and time costs, and the welded guardrail is difficult to disassemble, hindering its reuse and storage, and limiting its flexible application in different scenarios. When the guardrail needs to be adjusted for different construction environments, individual guardrail sections can be removed and slid onto another... The upper part of one guardrail body and the two guardrail bodies provide a more stable sliding effect through dovetail sliders and dovetail grooves, and avoid the phenomenon of the two guardrail bodies sliding out along the upper end and causing separation when they are connected. After the sliding assembly is completed, the two guardrail bodies are assembled and fixed by screwing the convex snap-fit ​​rod onto the surface of the arc-shaped L-shaped snap-fit ​​block. This sliding and stacking height increase method improves the flexibility of the device assembly operation, making the guardrail adaptable to more usage scenarios. In addition, the separate design of the guardrail body, horizontal assembly frame and fixed limit seat can save space occupied when not in use. Example

[0018] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the technical solution in this application effectively solves the problem that existing guardrails can mostly only be heightened by welding, which is very inconvenient. Welding requires professional welding equipment and technicians, increasing construction and time costs. Moreover, the welded guardrail is difficult to disassemble, which is not conducive to the reuse and storage of the guardrail and limits its flexible application in different scenarios. The overall idea is as follows: A modular guardrail for construction includes a guardrail body 11, a dovetail slider 12 fixedly connected to the upper end of the guardrail body 11, and horizontal assembly frames 13 provided on both sides of the guardrail body 11. Fixed limiting seats 14 are fixedly connected to the outer surfaces of the two horizontal assembly frames 13. The guardrail body 11 and the two horizontal assembly frames 13 are connected to the guardrail body 11 and the two horizontal assembly frames 13. The guardrail is internally threaded with fixing bolts 15. The guardrail consists of a guardrail body 11, a horizontal assembly frame 13, and a fixed limiting seat 14. The horizontal assembly frame 13 is installed inside the guardrail body 11 by screwing in the fixing bolts 15. The fixed limiting seat 14 can be installed in the ground by expansion screws. The fixed limiting seat 14 provides support and fixation for the guardrail body 11. When assembling the guardrail around the guardrail, the horizontal assembly frames 13 on the surfaces of the two guardrail bodies 11 are aligned. The assembly and fixation can then be completed by screwing in the bolt assembly inside the horizontal assembly frame 13. Multiple guardrail bodies 11 can block and protect the construction site. After a construction project is completed, the guardrail needs to be disassembled and stored separately for later use.

[0019] The guardrail body 11 has a dovetail-shaped groove 16 inside. The dovetail-shaped slider 12 and the dovetail-shaped groove 16 are compatible. When the guardrail faces different construction environments and its protection height needs to be adjusted, a single guardrail body 11 can be taken out and slid onto the top of another guardrail body 11. The two guardrail bodies 11 provide a more stable sliding effect through the dovetail-shaped slider 12 and the dovetail-shaped groove 16, and avoid the phenomenon of the two guardrail bodies 11 sliding out along the top and causing separation when connected. After the sliding assembly is completed, the two guardrail bodies 11 are assembled and fixed by screwing the convex snap-fit ​​rod 23 onto the surface of the arc-shaped L-shaped snap-fit ​​block 17. This sliding and stacking height-increasing method improves the flexibility of the device assembly operation, making the guardrail adaptable to more usage scenarios. In addition, the guardrail body 11, the horizontal assembly frame 13 and the fixed limit seat 14 are designed separately, which can save space occupied when not in use.

[0020] An L-shaped arc-shaped locking block 17 is fixedly connected to the outer surface of the guardrail body 11. A round rod mounting base 18 is fixedly connected to the end of the outer surface of the guardrail body 11 away from the L-shaped arc-shaped locking block 17. A screw handle 19 is rotatably connected to the outer surface of the round rod mounting base 18. A cylindrical through groove 26 is opened inside the screw handle 19. A supporting round rod 21 is fixedly connected inside the screw handle 19. A U-shaped bracket 22 is rotatably connected to the outer surface of the supporting round rod 21. A convex locking rod 23 is slidably connected inside the U-shaped bracket 22. A rectangular locking groove 24 is opened inside the convex locking rod 23. The L-shaped arc-shaped locking block 17 is locked inside the rectangular locking groove 24. A spring 25 is sleeved on the outer surface of the convex locking rod 23. The spring 25 is sleeved on the inner surface of the U-shaped bracket 22. After the two guardrail bodies 11 are spliced ​​together, when it is necessary to perform a locking and limiting operation, the convex locking rod 23 is held and sleeved on the L-shaped arc-shaped locking block. On surface 17, when pressing down on the screw handle 19, the operator can insert their fingers into the cylindrical through groove 26 to more easily hold the screw handle 19. When the screw handle 19 rotates around the cylindrical mounting base 18, it pulls the U-shaped bracket 22 downward eccentrically. At this time, the U-shaped bracket 22 moves downward, pulling the convex locking rod 23 to stably engage with the surface of the arc-shaped L-shaped locking block 17, thus quickly completing the vertical engagement and fixation between the two guardrail bodies 11. The operation of engaging the convex locking rod 23 and pulling the screw handle 19 to rotate is more efficient and faster. When the convex locking rod 23 is pulled downward by the U-shaped bracket 22, the surface of the U-shaped bracket 22 will compress the spring 25 during the sliding process. When the guardrail body 11 vibrates, the elastic properties of the spring 25 ensure the stability of the engagement between the convex locking rod 23 and the arc-shaped L-shaped locking block 17.

[0021] To address the problems existing in the prior art, this utility model provides a modular guardrail for construction. When the guardrail needs to be adjusted for different construction environments, a single guardrail body 11 can be removed and slid onto the top of another guardrail body 11. The two guardrail bodies 11 provide a more stable sliding effect through a dovetail slider 12 and a dovetail groove 16, and avoid the phenomenon of the two guardrail bodies 11 sliding out along the upper end and causing separation when connected. After the sliding assembly is completed, the two guardrail bodies 11 are assembled and fixed by screwing the convex locking rod 23 onto the surface of the arc-shaped L-shaped locking block 17. This sliding and stacking height-increasing method improves the flexibility of the device assembly operation, making the guardrail adaptable to more usage scenarios. Moreover, the separate design of the guardrail body 11, the horizontal assembly frame 13, and the fixed limiting seat 14 can save space occupied during idle storage.

[0022] Working principle: The first step involves assembling the guardrail into a single unit consisting of a guardrail body 11, a horizontal assembly frame 13, and a fixing limit seat 14. The horizontal assembly frame 13 is installed inside the guardrail body 11 by tightening fixing bolts 15. The fixing limit seat 14 is installed in the ground using expansion bolts, providing support and fixation for the guardrail body 11. During the assembly of the guardrail around the perimeter, the horizontal assembly frames 13 on the surfaces of the two guardrail bodies 11 are aligned. Assembly and fixation are then completed by tightening the bolts within the horizontal assembly frames 13. Multiple guardrail bodies 11 together protect the construction site. After a construction project is completed, the guardrail needs to be disassembled and stored separately for later use. When the protective height needs to be adjusted in the working environment, a single guardrail body 11 can be removed and slid onto the top of another guardrail body 11. The two guardrail bodies 11 provide a more stable sliding effect through the dovetail slider 12 and dovetail groove 16, and avoid the phenomenon of the two guardrail bodies 11 sliding out along the top and causing separation when connected. After the sliding assembly is completed, the two guardrail bodies 11 are assembled and fixed by screwing the convex snap-fit ​​rod 23 onto the surface of the arc-shaped L-shaped snap-fit ​​block 17. This sliding and stacking height-increasing method improves the flexibility of the device assembly operation, making the guardrail adaptable to more usage scenarios. In addition, the separate design of the guardrail body 11, the horizontal assembly frame 13 and the fixed limit seat 14 can save space occupied when not in use.

[0023] The second step involves performing a locking and limiting operation on the two guardrail bodies 11 after they are joined together. The worker holds the convex locking rod 23 and places it onto the surface of the L-shaped locking block 17. Then, pressing down on the screw handle 19 allows the worker to insert their fingers into the cylindrical slot 26 for easier gripping. As the screw handle 19 rotates around the cylindrical mounting base 18, it pulls the U-shaped bracket 22 downwards, causing it to shift eccentrically. This downward displacement of the U-shaped bracket 22 pulls the convex locking rod 23 into a stable locking position. The convex locking rod 23 is attached to the surface of the L-shaped locking block 17, thereby quickly completing the vertical locking and fixing between the two guardrail bodies 11. The operation of connecting the convex locking rod 23 and pulling the screw handle 19 to rotate is more efficient and faster. When the convex locking rod 23 is pulled down by the U-shaped bracket 22, the surface of the U-shaped bracket 22 will compress the spring 25 during the sliding process. When the guardrail body 11 vibrates, the elastic properties of the spring 25 itself ensure the stability of the locking and installation of the convex locking rod 23 and the L-shaped locking block 17.

[0024] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A modular protective railing for construction, comprising a railing body (11), wherein a dovetail-shaped slider (12) is fixedly connected to the upper end of the railing body (11), characterized in that, The guardrail body (11) is provided with horizontal assembly frames (13) on both sides. The outer surfaces of the two horizontal assembly frames (13) are fixedly connected with fixed limiting seats (14). The guardrail body (11) and the two horizontal assembly frames (13) are threadedly connected with fixing bolts (15). The guardrail body (11) is provided with a dovetail-shaped slide groove (16). The dovetail-shaped slider (12) and the dovetail-shaped slide groove (16) are compatible. Among them, the outer surface of the guardrail body (11) is fixedly connected with an arc-shaped L-shaped card block (17).

2. The combined protective railing for building construction as described in claim 1, characterized in that, A round rod mounting base (18) is fixedly connected to one end of the outer surface of the guardrail body (11) away from the arc-shaped L-shaped block (17). The outer surface of the round rod mounting base (18) is rotatably connected to a screw handle (19).

3. A modular protective railing for building construction as described in claim 2, characterized in that, The inside of the screw handle (19) is provided with a cylindrical through groove (26). The screw handle (19) has a support rod (21) fixedly connected inside.

4. A modular protective railing for building construction as described in claim 3, characterized in that, The outer surface of the supporting round rod (21) is rotatably connected to a U-shaped bracket (22). The U-shaped bracket (22) has a convex snap rod (23) slidably connected inside.

5. A modular protective railing for building construction as described in claim 4, characterized in that, The convex snap rod (23) has a rectangular snap groove (24) inside; The L-shaped arc-shaped card block (17) is engaged inside the rectangular card slot (24).

6. A combined protective railing for building construction as described in claim 5, characterized in that, A spring (25) is sleeved on the outer surface of the convex snap rod (23); The spring (25) is sleeved on the inner surface of the U-shaped bracket (22).