Multifunctional lock assembly for building construction edge hole protective barrier

The multi-functional lock assembly for protective railings at construction site openings utilizes a combination of rotating rods and bolt rods to achieve rapid installation and disassembly of the protective device. This solves the problems of complex installation, obstruction of material handling, and poor safety in existing technologies, thereby improving construction safety.

CN224032239UActive Publication Date: 2026-03-24HEILONGJIANG HEIJIANYI CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing protective devices for building construction site openings are cumbersome to install and dismantle, have complex structures, hinder material handling, and are unsafe, easily leading to falls from heights.

Method used

The construction site adopts a multi-functional locking component for the guardrail at the edge of the building. The guardrail is fixed to the inside of the outer wall by rotating rods and bolts. The reinforcement hooks and top plate enable quick installation and disassembly. The two ends of the guardrail are supported by the outer wall to avoid structural instability and damage to the original building.

Benefits of technology

It enables rapid installation and disassembly of protective devices, facilitates material handling, improves structural stability and safety, prevents falls from heights, and does not damage the original building.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multifunctional lock assembly of a building construction edge hole protective barrier, and relates to a protective device of a building edge hole. Comprising lock bodies (1) and a protection rod (2), the protection rod is horizontally arranged on the inner side of a hole of a building outer wall (3), the two ends of the protection rod are lapped on the building outer wall on the two sides of the hole, the lock bodies are arranged at the two ends of the protection rod respectively, the protection rod is arranged in an opening frame of the lock bodies, and two reinforcing hooks of the lock bodies are hooked on the outer side of the building outer wall on the side face of the hole. The bolt rod abuts against the inner side of the protection rod to fix the protection rod to the inner side of the hole of the building outer wall. The problems that bolts and other components are adopted in an existing patent, installation and detachment are tedious, the structure is complex, and edge holes are inconvenient to open and close; after the protection device is opened, a protection component is arranged at the hole, and carrying of the materials is hindered; the problems that an existing similar device is unstable in structure and poor in safety, and an original building is damaged by a protection device are solved.
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Description

Technical Field

[0001] This utility model relates to protective devices in building construction, specifically protective devices for openings at the edges of buildings. Background Technology

[0002] There are various types of edges in construction projects, and openings are often located at these edges. The proper functioning of protective facilities (fences, covers, etc.) at these edges is of paramount importance for safety management throughout the entire project. To prevent people or objects from falling during construction, edge protection measures must be installed at building openings.

[0003] CN112282400A discloses a safety protection device for edge openings in building construction and its usage method. By setting up connecting bolts, connecting plates, and placement plates, the placement plates can be fixed by the connecting bolts through the connecting plates, which facilitates the installation of power tools on the placement plates, reduces the number of lines and pipes, avoids a cluttered working environment, and improves the practicality of the device.

[0004] During construction, the aforementioned patented technology requires frequent handling and hoisting of materials at the openings near the edges, necessitating the opening of protective devices. The patented technology uses bolts and other components, making installation and disassembly cumbersome and structurally complex, which is inconvenient for opening and closing near the edges. Furthermore, once the protective devices are open, the protective components at the opening hinder material handling during loading and unloading.

[0005] CN117005708A discloses a protective device for edge openings in building construction. It involves inserting a conical insert block from a support pile into the ground at the opening, and then using a foot pedal to push the block into the ground for quick and easy fixation of the support pile. A lifting pile is pulled up and down vertically along a groove under the limiting action of a limiting slot and a limiting slider. A positioning bolt passes through a through hole and is threaded into a threaded groove, positioning the lifting pile and allowing for adjustment of the protection height according to the opening height. In this patent, the conical insert is fixed to the support pile at its lower end, while the upper end of the support pile is not fixed, making it a one-end fixed protective device. When an object or person pushes against the protective device in the building, the upper part of the support column will tilt outwards due to the force, causing structural instability and poor safety. Furthermore, this protective device can damage any original building structure. During construction, building components may directly impact the protective device, and construction workers may unintentionally lean against it, causing the guardrail to tilt outwards, potentially leading to falls from heights.

[0006] In view of the above, this utility model is hereby applied for. Utility Model Content

[0007] This utility model provides a multi-functional lock component for protective railings at edge openings in building construction. This utility model solves the problems of existing patents that use bolts and other components, which are cumbersome to install and disassemble, have complex structures, and are inconvenient to open and close edge openings; after the protective device is opened, there will be protective components at the opening, which will hinder the handling of materials; and existing similar devices have unstable structures, poor safety, and the protective devices damage the original building.

[0008] To solve the above problems, this utility model adopts the following technical solution: a multi-functional lock assembly for protective railings at construction site edge openings, including a floor slab 4 and an exterior wall 3 on the outer side of the floor slab, with an edge opening 31 on the exterior wall 3; it also includes a lock body 1 and a protective rod 2. The lock body 1 includes an opening frame 11, which is a rectangular frame with an opening on one side formed by two parallel side rods and a crossbar connected to the ends of the two side rods; the crossbar of the opening frame 11 has an internally threaded threaded thread 14 in the middle, and a bolt rod 13 is provided in the threaded thread 14. The bolt rod 13 is parallel to the side rod of the opening frame, and a rotating rod 1 is vertically welded to the outer end of the bolt rod 13. 2; The inner end of the bolt rod 13 is fixedly connected to the top plate 15; The two side rod ends of the opening frame 11 have reinforcing hooks 17, which are perpendicular to the plane of the opening frame; The protective rod 2 is horizontally set inside the opening 31 of the building exterior wall 3, and the two ends of the protective rod 2 rest on the building exterior walls on both sides of the opening. Each end of the protective rod 2 is provided with a lock body 1. The protective rod 2 is set inside the opening frame 11 of the lock body 1. The two reinforcing hooks 17 of the lock body 1 are hooked to the outside of the building exterior wall 3 on the side of the opening 31. The bolt rod 13 pushes against the inner side of the protective rod 2, thereby fixing the protective rod 2 to the inner side of the opening 31 of the building exterior wall 3.

[0009] Furthermore, the multi-functional lock assembly for the protective railing at the edge of the building construction site of this utility model also has the following features: a reinforcing support rod 16 is connected between the two side rods of the opening frame 11, and the protective rod 2 is set between the reinforcing support rod 16 and the horizontal bar of the opening frame 11.

[0010] Advantages of this utility model:

[0011] By rotating the bolt rod with a rotating rod, the protective rod is pressed tightly against the inner side of the outer wall, thereby temporarily installing and fixing the protective rod at the opening, thus achieving the purpose of safety protection for the opening.

[0012] The overall structure is simple. The lock body can be made by welding scraps from the construction site or by processing in the factory, making it easy to open and protect near openings.

[0013] Once the protective device is opened, there are no components, making it easy to handle materials.

[0014] The outer wall and the protective rod are locked together by the top plate of the bolt rod and the reinforcing hook, resulting in a structurally unstable structure with good safety.

[0015] The use of locks to install the guardrails does not require any damage to the original building structure.

[0016] The guardrail is installed inside the opening, and both ends of the guardrail are supported by the outer walls on both sides of the opening. It can effectively prevent direct impact from materials inside the building and prevent people from leaning against it unintentionally, thus avoiding falls from heights caused by the above reasons and playing a safety protection role. Attached Figure Description

[0017] Figure 1 This is a perspective view of the lock body of this utility model;

[0018] Figure 2 This is a diagram showing the fit between the lock body and the guard bar;

[0019] Figure 3 This utility model is a schematic diagram of the inner side of the exterior of a building;

[0020] Figure 4 yes Figure 3 AA section view;

[0021] Figure 5 is a top-down perspective view of this utility model.

[0022] Symbols in the diagram: 1. Lock body, 11. Opening frame, 12. Rotating rod, 13. Bolt rod, 14. Threading, 15. Top plate, 16. Reinforcing support rod, 17. Reinforcing hook, 2. Protective rod, 3. Building exterior wall, 31. Opening, 4. Floor slab. Detailed Implementation

[0023] The present invention will now be described in detail using the preferred embodiments.

[0024] like Figure 1 As shown, the multi-functional lock assembly for protective railings at edge openings in building construction includes a floor slab 4 and an exterior wall 3 on the outer side of the floor slab. The exterior wall 3 has an edge opening 31. It also includes a lock body 1 and a protective rod 2. The lock body 1 includes an opening frame 11, which consists of two parallel side bars and a crossbar connected to the ends of the two side bars. The side bars and the crossbar form a rectangular frame with an opening on one side. The opening frame 11 is formed by stamping round steel, with a width of 120mm and a length of 350mm. The crossbar of the opening frame 11 has an internally threaded threaded section 14 in the middle. A bolt rod 13 is installed in the threaded section 14, parallel to the side bars of the opening frame. A rotating rod 12 is vertically welded to the outer end of the bolt rod 13, causing the bolt rod to rotate and move upwards along the threaded section. The inner end of the bolt rod 13 is fixedly connected to the top plate 15, which is used to tighten the protective rod 2; the two side rods of the opening frame 11 have reinforcing hooks 17 bent at 90 degrees at their ends, and the reinforcing hooks 17 are perpendicular to the plane of the opening frame.

[0025] like Figure 2-5As shown, the guardrail 2 is horizontally installed inside the opening 31 of the building's exterior wall 3. Both ends of the guardrail 2 rest on the exterior walls on either side of the opening. Each end of the guardrail 2 is equipped with a lock body 1, and the guardrail 2 is positioned within the opening frame 11 of the lock body 1. Two reinforcing hooks 17 of the lock body 1 hook onto the outer side of the building's exterior wall 3 on the side of the opening 31. A bolt rod 13 presses against the inner side of the guardrail 2, thus fixing the guardrail 2 to the inner side of the opening 31 of the building's exterior wall 3. Multiple guardrails can be installed from bottom to top according to construction needs to achieve a safety protection function.

[0026] A reinforcing strut 16 is connected between the two side bars of the opening frame 11, and a protective rod 2 is set between the reinforcing strut 16 and the crossbar of the opening frame 11. In this structure, the distance between the reinforcing strut 16 and the reinforcing hook 17 is less than the thickness of the protective rod 2, so that the reinforcing strut 16 will not prevent the bolt rod 13 from tightening the reinforcing strut.

[0027] The new type of multi-functional lock for edge protection railings is a product designed for construction projects or structures requiring edge protection. It is simple to install, convenient, practical, quick and effective for fixing square or round steel pipes for safety protection of openings.

[0028] The lock body is made of Φ12 national standard round steel, stamped and formed. The lock body is 120mm wide and 350mm long. The end is stamped and bent into a 100mm long tie hook to connect to the outside of the wall. The lock body reinforcement support rod is welded 150mm from the bent end. The center of the shoulder is stamped with a 12mm threaded adjustable bolt rod. The bolt rod is 200mm long and can be used to secure walls or columns of any thickness from 150mm to 300mm. The spacing of the square or round tube of the protective rod can be adjusted by adjusting the bolt rod to tighten the protective rod temporarily installed at the opening, thereby achieving the purpose of safety protection of the opening.

[0029] This lock can be installed without damaging any original building structures and effectively prevents falls from heights caused by direct impacts, temporary stacking of items, or unintentional leaning, thus providing safety protection. The components of this utility model can securely hold square or round steel pipes and provide safety protection for openings.

Claims

1. A multi-functional lock assembly for protective railings at edge openings in building construction, comprising a floor slab (4) and an exterior wall (3) on the outer side of the floor slab, wherein the exterior wall (3) has an edge opening (31); characterized in that: It also includes a lock body (1) and a protective rod (2). The lock body (1) includes an opening frame (11). The opening frame (11) is a rectangular frame with an opening on one side, consisting of two parallel side rods and a crossbar connected to the ends of the two side rods. The crossbar of the opening frame (11) has an internal threaded thread (14) in the middle. A bolt rod (13) is provided in the thread (14). The bolt rod (13) is parallel to the side rod of the opening frame. A rotating rod (12) is vertically welded to the outer end of the bolt rod (13). A top plate (15) is fixedly connected to the inner end of the bolt rod (13). The two side rods of the opening frame (11) have reinforcing hooks (17) at their ends. The reinforcing hooks (17) are perpendicular to the plane of the opening frame. The protective rod (2) is horizontally installed inside the opening (31) of the building exterior wall (3). The two ends of the protective rod (2) rest on the building exterior walls on both sides of the opening. Each end of the protective rod (2) is equipped with a lock body (1). The protective rod (2) is installed inside the opening frame (11) of the lock body (1). The two reinforcing hooks (17) of the lock body (1) are hooked to the outside of the building exterior wall (3) on the side of the opening (31). The bolt rod (13) is pushed against the inside of the protective rod (2) to fix the protective rod (2) to the inside of the opening (31) of the building exterior wall (3).

2. The multi-functional lock assembly for protective railings at construction site openings as described in claim 1, characterized in that: A reinforcing strut (16) is connected between the two side bars of the opening frame (11), and a protective rod (2) is set between the reinforcing strut (16) and the crossbar of the opening frame (11).

Citation Information

Patent Citations

  • Building construction edge hole safety protection device and using method thereof

    CN112282400A

  • Building construction edge hole protection device

    CN117005708A