Protective device for dismounting and replacing fixed glass of exposed frame curtain wall

By forming a closed protective structure on the exposed frame curtain wall, and using protective frame components connected with bolts and fixed with self-tapping screws, the problems of glass falling and shards flying are solved, realizing an efficient and safe glass removal process, and adapting to the needs of curtain walls of different sizes.

CN223964200UActive Publication Date: 2026-03-03CHINA NUCLEAR IND 24 CONSTR
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Patent Information

Application Number
CN202520495792.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-03-03
Estimated Expiration
2035-03-20

AI Technical Summary

Technical Problem

When removing fixed glass from exposed frame curtain walls, the safety risks of falling glass and broken glass shards are difficult to prevent effectively. Existing measures cannot fundamentally eliminate accidents, and manual removal is inefficient and costly.

Method used

Design a protective device that forms a closed structure with the exposed frame glass curtain wall, using protective frame components connected by bolts and fixed with self-tapping screws to form a stable protective barrier to prevent glass from falling and shards from flying, and improves construction safety and efficiency through lifting rings and explosion-proof membranes.

Benefits of technology

It effectively prevents glass from falling and glass shards from dropping, improves construction safety, reduces labor costs, increases demolition efficiency, adapts to curtain wall requirements of different sizes, and its modular design facilitates transportation and storage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protective device for dismantling and replacing fixed glass of an exposed frame curtain wall, and relates to the technical field of building construction protective equipment, the protective device comprises a plurality of protective frame assemblies which are connected in series, each protective frame assembly comprises a protective frame body, each protective frame body is connected to the outer side wall of the exposed frame glass curtain wall, and the protective frame bodies are connected with the protective frame bodies. The protection frame body and the exposed frame glass curtain wall form a closed structure, the closed structure effectively prevents glass falling and broken glass falling in the dismantling and replacing process, safety in the construction process is ensured, and the problem of dismantling and replacing the outer curtain wall glass of the high-rise building is solved.
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Description

Technical Field

[0001] This utility model relates to the field of building construction protection equipment technology, specifically to a protective device for the removal and replacement of fixed glass in exposed frame curtain walls. Background Technology

[0002] Against the backdrop of continuous advancements in modern building technology and rapid urbanization, cities are gradually entering a phase of renewal, with the number of high-rise and super high-rise building renovation projects showing a year-on-year increasing trend. Among these renovation projects, the demand for modifying existing glass curtain walls is becoming increasingly common. Glass curtain walls, with their unique aesthetics and excellent lighting effects, have become the preferred choice for many building facades. However, after long-term use, due to aging, changes in function, or adjustments in style, they often need to be demolished, rebuilt, or replaced.

[0003] During the removal of fixed glass from exposed-frame curtain walls, a series of safety issues gradually emerged, causing significant concern. Because fixed glass in exposed-frame curtain walls is typically installed at a high position, it is highly likely to fall once it loses its restraint during removal. Falling glass can cause serious injury or death to people on the ground, damage nearby parked vehicles, facilities, and buildings, triggering a series of safety accidents and seriously endangering people's lives and property.

[0004] To address safety concerns during demolition, some measures have been implemented in the past, such as setting up warning signs on the ground and erecting simple protective sheds. However, these methods can only reduce risks to a certain extent and cannot fundamentally eliminate the dangers caused by falling glass. From the perspective of convenience and labor costs, existing demolition methods rely heavily on manual labor for complex operations at heights, which is not only inefficient but also requires a large workforce, resulting in high labor costs. Moreover, controlling glass breakage during manual demolition is difficult, and shards of glass can easily fly everywhere, further increasing the danger of the demolition operation. Utility Model Content

[0005] The purpose of this utility model is to provide a protective device for the removal and replacement of fixed glass in exposed frame curtain walls. This protective device forms a closed structure with the exposed frame glass curtain wall, thereby effectively preventing glass from falling and glass shards from falling during the removal and replacement process, ensuring safety during construction, and solving the problem of glass removal and replacement in high-rise building exterior curtain walls.

[0006] To achieve the above-mentioned technical effects, this utility model is implemented through the following technical solution:

[0007] A protective device for removing and replacing fixed glass in an exposed frame curtain wall includes multiple protective frame assemblies connected in series. Each of the protective frame assemblies includes a protective frame body, and each protective frame body is connected to the outer side wall of the exposed frame glass curtain wall, forming a closed structure with the exposed frame glass curtain wall.

[0008] In this solution, the protective device consists of multiple protective frame components connected in series. Each protective frame component includes a protective frame body connected to the outer wall of the exposed frame glass curtain wall, forming a closed structure. During construction, construction workers remove the glass from inside the room. Because the outer wall of the exposed frame glass curtain wall and the protective frame components form a closed structure, the protective frame components will effectively prevent the glass from falling and glass shards from falling during the removal process, effectively reducing the probability of safety accidents at the construction site.

[0009] As a further technical solution for the protective device, the protective frame assembly includes a first protective frame assembly and a second protective frame assembly, wherein the protective frame bodies in the first protective frame assembly and the second protective frame assembly are connected by bolts.

[0010] In this solution, the protective frame body is connected by bolts for easy disassembly and assembly. This allows for flexible adjustment of the protective device layout according to the actual conditions of the construction site, improving installation efficiency. The bolt connection also ensures that the two protective frame components are tightly joined, so that the protective device as a whole can withstand the impact of falling glass or the pressure of broken glass, with each part bearing the force collaboratively, enhancing overall stability and effectively preventing problems such as loosening or deformation due to uneven stress. At the same time, from the perspective of maintenance and transportation, the detachable bolt connection makes it easy to disassemble and transport the protective device after construction. It also facilitates the accurate location and replacement of damaged individual protective frame components in case of damage, reducing maintenance costs and improving the practicality and versatility of the protective device.

[0011] As a further technical solution for the protective device, the first protective frame assembly and the second protective frame assembly are fixed to the sides and the bottom keel of the exposed frame glass curtain wall by multiple sets of self-tapping screws.

[0012] In this solution, multiple sets of self-tapping screws securely fix the protective frame assembly to the sides and lower keel of the curtain wall. This ensures a tight fit between the protective device and the curtain wall, effectively withstanding the impact of falling glass and the pressure of broken glass during glass removal. This prevents the protective device from shifting or falling off, thus ensuring the safety of personnel and property below. Furthermore, this fixing method is easy for construction workers to operate, resulting in high construction efficiency, making it suitable for large-scale curtain wall glass removal operations. In addition, the self-tapping screw fixing facilitates subsequent disassembly and replacement of the protective device. If any part of the protective device is damaged, it can be quickly removed and replaced, ensuring the continued protective function and guaranteeing the smooth progress of the removal work.

[0013] As a further technical solution for the protective device, the frame of the protective frame body is provided with reserved holes that match the self-tapping screws, and the reserved holes are evenly distributed on the frame of the protective frame body.

[0014] In this design, the protective frame body features pre-drilled holes evenly distributed to match the self-tapping screws. From an installation perspective, this significantly improves installation efficiency. Workers can quickly align the self-tapping screws with the pre-drilled holes and secure them without needing to drill on-site, saving time and labor costs. Regarding the fixing effect, the evenly distributed pre-drilled holes ensure that the protective frame body experiences more even stress on the curtain wall keel after the self-tapping screws are installed, enhancing the overall stability and robustness of the protective device. This ensures that during glass removal, the protective device can effectively withstand the impact of falling glass and the pressure of shards, preventing excessive localized stress that could lead to deformation or loosening.

[0015] As a further technical solution for the protective device, the first protective frame assembly and the second protective frame assembly are connected sequentially from top to bottom to the outer wall of the exposed frame glass curtain wall, and the spacing between adjacent self-tapping screws on the first protective frame assembly is not less than 400mm.

[0016] In this design, the first and second protective frame components are connected sequentially to the outer wall of the curtain wall from top to bottom. This layout can fully cover the area of ​​glass to be demolished, forming a continuous and effective protective barrier. It can better catch the glass and debris falling during the demolition process and prevent them from falling below and causing safety accidents. Furthermore, the spacing between adjacent self-tapping screws on the first protective frame component is set to be no less than 400mm. This spacing can ensure that the protective frame component has enough fastening points when fixed, so that the protective frame can be reliably connected to the curtain wall keel, ensuring the overall stability of the protective device and withstanding various forces during the demolition operation. It can also avoid material waste and installation inconvenience caused by excessively dense screws.

[0017] As a further technical solution for the protective device, the spacing between adjacent self-tapping screws on the second protective frame assembly is not less than 200mm.

[0018] In this design, because the second protective frame assembly is located below, it is more susceptible to impact and pressure from falling glass and debris during glass removal. Setting the spacing between adjacent self-tapping screws on this assembly to no less than 200mm increases the number of fixing points, making the connection between the protective frame and the curtain wall keel tighter and more secure. Compared to the relatively larger screw spacing on the first protective frame assembly, the denser screw layout of the second protective frame assembly effectively distributes pressure, reduces the load on individual screws, and prevents screw loosening, deformation, or detachment of the protective frame due to excessive localized stress, thus providing more reliable protection for dismantling operations.

[0019] As a further technical solution for the protective device, both the first protective frame assembly and the second protective frame assembly include a protective plate, which is located inside the enclosed structure and connected to the wall of the protective frame body.

[0020] In this solution, the protective plate can directly block the glass shards generated during the demolition process, preventing the shards from flying to a farther area and reducing the risk of injury to surrounding personnel and objects. At the same time, the protective plate is connected to the protective frame body, which also increases the structural strength of the entire protective component. When subjected to external impact, it can assist the protective frame body in bearing the force, making the protective device more stable and less prone to deformation or damage.

[0021] As a further technical solution for the protective device, the protective frame body is a frame structure welded from angle steel.

[0022] In this solution, the frame structure is easy to process and manufacture. Construction workers can flexibly cut and weld angle steel according to the actual dimensions measured on site, and assemble the protective frame body that meets the needs of different curtain wall sizes. This improves the adaptability and versatility of the protective device, effectively reduces production costs, and facilitates transportation and on-site installation, greatly improving construction efficiency.

[0023] As a further technical solution for the protective device, the outer side wall of the protective frame body is also connected with multiple lifting rings.

[0024] In this solution, by connecting the hoisting equipment to the hoisting ring, the protective device can be precisely hoisted to the installation position on the exposed-frame glass curtain wall, achieving rapid positioning and installation and improving construction efficiency. During dismantling, the hoisting ring also allows for the safe removal of the protective device from a height, reducing the risks to construction workers operating at heights.

[0025] As a further technical solution for the protective device, the protective device also includes an explosion-proof film, which is located outside the enclosed structure and connected to the wall surface of the exposed frame glass curtain wall.

[0026] In this solution, the explosion-proof film effectively prevents glass fragments from flying outwards the moment the glass breaks, greatly reducing the risk of injury to personnel and property outside the protective device. Simultaneously, it limits the extent of glass breakage, allowing the glass to retain some integrity after shattering, facilitating subsequent cleanup and reducing the difficulties caused by scattered glass shards.

[0027] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0028] 1. This utility model forms a closed structure with the exposed frame glass curtain wall, thereby effectively preventing glass from falling and broken glass shards from falling during the dismantling and replacement process, ensuring safety during construction, and solving the problem of dismantling and replacing glass on the exterior curtain wall of high-rise buildings.

[0029] 2. This utility model can be processed according to the on-site measured dimensions and can be adapted to the removal of fixed glass in exposed frame curtain walls of different sizes. Its modular design allows for flexible combination and disassembly of each component, making it convenient for transportation and storage. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0031] Figure 1 This is a schematic diagram of the structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the main structure of the first protective frame assembly;

[0033] Figure 3 This is a side view of the first protective frame assembly.

[0034] Figure 4 This is a schematic diagram of the main structure of the second protective frame assembly;

[0035] Figure 5 This is a side view of the second protective frame assembly.

[0036] The attached diagram shows the markings and corresponding component names:

[0037] 1-Lifting ring, 2-Bolt, 2.1-Bolt hole, 3-Reserved hole, 4-Protective frame body, 5-Protective plate. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0039] Example 1

[0040] This embodiment 1 provides a protective device for the removal and replacement of fixed glass in exposed frame curtain walls, such as... Figures 1-5As shown, the system includes multiple protective frame assemblies connected in series. Each protective frame assembly includes a protective frame body 4, which is a frame structure welded from angle steel. Each protective frame body 4 is connected to the outer wall of the exposed frame glass curtain wall. The protective frame body and the exposed frame glass curtain wall form a closed structure. This closed structure effectively prevents glass from falling and broken glass from falling during the dismantling and replacement process, ensuring safety during construction.

[0041] Specifically, the number of protective frame components can be flexibly selected according to the specifications and dimensions of the exposed frame glass curtain wall. In this embodiment, two protective frame components are used as an example, including a first protective frame component and a second protective frame component. Both the first and second protective frame components include a protective plate 5. The protective plate 5 is located inside the enclosed structure and connected to the wall surface of the protective frame body 4. It is used to directly block the glass fragments generated during the demolition process. Furthermore, two sets of matching bolt holes 2.1 are provided between the protective frame bodies 4 in the first and second protective frame components. The protective frame bodies 4 are connected and fixed together by tightening bolts 2 in the bolt holes 2.1. The detachable bolt connection facilitates the disassembly and transportation of the protective device after construction. It also facilitates the accurate positioning and replacement of damaged individual protective frame components in case of damage, thereby reducing maintenance costs.

[0042] The protective frame body 4 has pre-drilled holes 3 that match the self-tapping screws on its frame. These pre-drilled holes 3 are evenly distributed on the frame of the protective frame body 4. In use, the first protective frame assembly and the second protective frame assembly are connected to the two sides and the lower keel of the exposed frame glass curtain wall from top to bottom through the pre-drilled holes 3 and the corresponding self-tapping screws. In order to better bear the glass and debris falling during the demolition process and prevent them from falling down and causing safety accidents, the spacing between adjacent self-tapping screws on the first protective frame assembly is set to 400mm. This spacing can ensure that the protective device will not easily fall off when it is impacted. In addition, considering that glass debris scattered on the ground may put pressure on the protective device, the spacing between adjacent self-tapping screws on the second protective frame assembly is 200mm. This ensures that even under the pressure of glass debris, the protective device can remain stable and will not be deformed or damaged due to heavy pressure.

[0043] In addition, to achieve rapid positioning and installation and improve construction efficiency, multiple lifting rings 1 are connected to the outer wall of the protective frame body 4. These lifting rings 1 allow the protective device to be safely hoisted down from a height, reducing the risks to construction workers operating at heights. Furthermore, the protective device includes an explosion-proof membrane, located on the outside of the enclosed structure and connected to the surface of the exposed-frame glass curtain wall. In the event of glass breakage, the explosion-proof membrane effectively prevents glass fragments from flying outwards, significantly reducing the risk of injury to personnel and property outside the protective device.

[0044] The procedure for using this device is as follows:

[0045] Before removing the glass, the dimensions of the glass to be removed were measured in detail according to the actual site conditions, and the protective device was fabricated accordingly. The device adopts a segmented design. The main body of the protective frame 4 is welded from L40×40×4 angle steel, and φ10 steel bars are installed on the back side as lifting rings 1. During installation, the sealant on the keel decorative strip of the glass curtain wall is first removed and the decorative strip is removed. Then, the protective device is connected to each part of the combined frame with M10 bolts and fixed to the keel on both sides and the bottom of the exposed frame glass curtain wall with M5.5×70mm self-tapping screws.

[0046] Indoor operators apply explosion-proof film to the glass to be removed. The explosion-proof film can play a certain role in restraining the glass when it breaks, reducing the range and force of the flying glass fragments, and reducing the risk of injury to personnel and the surrounding environment.

[0047] Use a window breaker to break glass with shatterproof film. During operation, select the pre-designated breaking point and strike precisely to break the glass in the intended manner. If it is multi-layered glass, break it layer by layer from the outermost to the innermost. For example, after breaking the first layer of film-coated glass, clean it, then apply the film to the second layer, break it, and clean it. When breaking the second layer of glass, in addition to the window breaker, a safety hammer can be used to assist in the operation.

[0048] After the glass breaks, first use a broom to clean up the larger glass shards and collect them. Then, use a vacuum cleaner to clean up any remaining small fragments on the ground, ensuring that there are no fragments left to avoid injury or disruption to subsequent construction work.

[0049] After completing the glass removal and cleanup, and confirming there is no risk of falling debris, dismantle the protective device. During dismantling, first check the security of the safety rope and lifting ring 1, then proceed by removing the upper protective frame body 4 first, followed by the lower protective frame body 4. After dismantling, seal any nail holes created during the installation of the protective device using M5.5×70mm self-tapping screws of the same specifications used to fix the device. Apply a suitable amount of structural adhesive to the screws and tighten them to restore the smoothness and aesthetics of the wall surface.

[0050] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A protective device for removing and replacing fixed glass in exposed frame curtain walls, characterized in that, It includes multiple protective frame assemblies connected in series, wherein each of the protective frame assemblies includes a protective frame body (4), each of the protective frame bodies (4) is connected to the outer wall of the exposed frame glass curtain wall, and the protective frame body (4) and the exposed frame glass curtain wall form a closed structure.

2. The protective device for removing and replacing fixed glass in a visible frame curtain wall according to claim 1, characterized in that, The protective frame assembly includes a first protective frame assembly and a second protective frame assembly, wherein the protective frame body (4) in the first protective frame assembly and the second protective frame assembly is connected by bolts (2).

3. A protective device for removing and replacing fixed glass in an exposed-frame curtain wall according to claim 2, characterized in that, The first protective frame assembly and the second protective frame assembly are fixed to the two sides and the lower keel of the exposed frame glass curtain wall by multiple sets of self-tapping screws.

4. A protective device for removing and replacing fixed glass in an exposed-frame curtain wall according to claim 3, characterized in that, The protective frame body (4) has reserved holes (3) that match the self-tapping screws on its frame. The reserved holes (3) are evenly distributed on the frame of the protective frame body (4).

5. A protective device for removing and replacing fixed glass in an exposed-frame curtain wall according to claim 4, characterized in that, The first protective frame assembly and the second protective frame assembly are connected sequentially from top to bottom to the outer wall of the exposed frame glass curtain wall, and the spacing between adjacent self-tapping screws on the first protective frame assembly is not less than 400mm.

6. A protective device for removing and replacing fixed glass in an exposed-frame curtain wall according to claim 5, characterized in that, The spacing between adjacent self-tapping screws on the second protective frame assembly is not less than 200mm.

7. A protective device for removing and replacing fixed glass in a visible-frame curtain wall according to any one of claims 2-6, characterized in that, Both the first protective frame assembly and the second protective frame assembly include a protective plate (5), which is located inside the closed structure and connected to the wall of the protective frame body (4).

8. A protective device for removing and replacing fixed glass in an exposed frame curtain wall according to claim 7, characterized in that, The protective frame body (4) is a frame structure welded from angle steel.

9. A protective device for removing and replacing fixed glass in an exposed-frame curtain wall according to claim 7, characterized in that, The outer wall of the protective frame body (4) is also connected to multiple lifting rings (1).

10. A protective device for removing and replacing fixed glass in an exposed-frame curtain wall according to claim 7, characterized in that, The protective device also includes an explosion-proof film, which is located outside the enclosed structure and connected to the wall surface of the exposed frame glass curtain wall.