Composite fireproof device for sightseeing elevator in high-rise office lobby
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN OBO ENG DESIGN CONSULTANTS CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-12
Smart Images

Figure CN224351435U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building fire protection technology, specifically a composite fire protection device for sightseeing elevators in high-rise office lobbies. Background Technology
[0002] Fire-resistant partitions in elevator shafts are an important component of building fire protection design, with the aim of preventing the vertical spread of fire through elevator shafts.
[0003] Traditional fireproof partitions for elevator shafts often use solid walls or metal fireproof panels, resulting in poor transparency and severely obstructing the view from sightseeing elevators. Therefore, many existing methods use glass curtain walls to improve the elevator's visibility. However, ordinary glass curtain walls are prone to cracking under high temperatures, creating fire channels and failing to meet the 2-hour fire resistance integrity requirement for elevator shafts specified in the "Code for Fire Protection Design of Buildings" GB 50016—2014 (2018 edition).
[0004] Therefore, the existing fireproof tempered glass is being replaced. However, the existing fireproof glass system lacks modular connection with the load-bearing structure. At the same time, the connection between the fireproof tempered glass and the load-bearing structure is made easy for high-temperature fire to spread, which poses a safety hazard. Utility Model Content
[0005] The purpose of this utility model is to provide a composite fireproof device for sightseeing elevators in high-rise office lobbies, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a composite fireproof device for a sightseeing elevator in a high-rise office lobby, comprising a keel frame, multiple composite fireproof tempered glass panes, and mounting brackets; the keel frame is fixed with mounting brackets for connecting two adjacent composite fireproof tempered glass panes, wherein: the mounting brackets include a first connecting bracket and a second connecting bracket, the ends of the composite fireproof tempered glass panes are placed on the first connecting bracket and the second connecting bracket and fixed to the keel frame by fixing bolts, and the first connecting bracket and the second connecting bracket are sealed to the composite fireproof tempered glass panes by fireproof sealing components.
[0007] The composite fireproof device for the sightseeing elevator in the high-rise office lobby described above: the keel frame includes vertical beams and horizontal beams fixed on the vertical beams, and connecting steel plates are fixed on the horizontal beams; it also includes a keel frame, which is fixed to the connecting steel plates by bolts, and a connection position for connecting composite fireproof tempered glass is formed at the end of the keel frame away from the connecting steel plates.
[0008] The composite fireproof device for the sightseeing elevator in the high-rise office lobby described above includes: fireproof sealing components including fireproof silicone connecting the first connecting frame and one side of the composite fireproof tempered glass; and fireproof expansion sealing strip connecting the second connecting frame and the other side of the composite fireproof tempered glass.
[0009] As described above, the composite fireproof device for the sightseeing elevator in the high-rise office lobby has elastic bending portions at both ends of the first connecting frame. The elastic bending portions bend toward the composite fireproof tempered glass, and the fireproof silicone wraps around the elastic bending portions and abuts against the keel frame and the composite fireproof tempered glass respectively.
[0010] The composite fireproof device for the sightseeing elevator in the high-rise office lobby, as described above, consists of a cavity formed between the first connecting frame, the second connecting frame, and the two composite fireproof tempered glass panels, and the cavity is filled with rock wool fireproof filler.
[0011] As described above, the composite fireproof device for the sightseeing elevator in the high-rise office lobby has a snap-on cover on the side of the second connecting frame away from the first connecting frame.
[0012] The composite fireproof device for the sightseeing elevator in the high-rise office lobby, as described above, has a nano self-cleaning coating on the side of the composite fireproof tempered glass away from the keel frame.
[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: The modular design of the keel frame, multiple composite fireproof tempered glass panels, and mounting brackets forms a transparent fire barrier. The first and second connecting brackets, in conjunction with fireproof sealing components, connect the composite fireproof tempered glass to the keel frame, achieving an edge sealing effect. This effectively solves the problem of traditional elevator shaft fireproof partitions obstructing the view, while simultaneously achieving effective fire protection. A flexible connection is formed between the composite fireproof tempered glass and the keel frame. The fireproof expansion sealing strip expands rapidly when exposed to high temperatures, effectively preventing the spread of fire and smoke. Furthermore, the fireproof silicone sealant, used in conjunction with the fireproof expansion sealing strip, forms a double fire barrier, further enhancing the safety and reliability of the entire elevator shaft fire protection system. Attached Figure Description
[0014] Figure 1 A schematic diagram of the composite fire protection device for a sightseeing elevator in a high-rise office lobby.
[0015] Figure 2 Another structural schematic diagram of the composite fireproof device for the sightseeing elevator in a high-rise office lobby;
[0016] Figure 3 for Figure 1 Enlarged view of the structure at point A in the middle;
[0017] Figure 4A schematic diagram of the mounting frame in the composite fireproof device for the sightseeing elevator in a high-rise office lobby.
[0018] Figure 5 This is a schematic diagram of the connection status of the composite fire protection device for the sightseeing elevator in the lobby of a high-rise office building at the corner of the elevator shaft.
[0019] In the diagram: 1-Vertical beam, 2-Connecting steel plate, 3-Keeper frame, 301-Connecting position, 4-Bolt, 5-Fireproof silicone, 6-Composite fireproof tempered glass, 7-Mounting bracket, 701-First connecting bracket, 7011-Elastic bending part, 702-Fixing bolt, 703-Second connecting bracket, 704-Clip cover, 8-Fireproof expansion sealing strip, 9-Horizontal beam. Detailed Implementation
[0020] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.
[0021] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.
[0022] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.
[0023] Please see Figures 1-4 In this embodiment of the utility model, the composite fireproof device for the sightseeing elevator in the high-rise office lobby includes a keel frame, multiple composite fireproof tempered glass panes 6, and mounting brackets 7. The keel frame is fixed with mounting brackets 7 for connecting two adjacent composite fireproof tempered glass panes 6. The mounting brackets 7 include a first connecting bracket 701 and a second connecting bracket 703. The ends of the composite fireproof tempered glass panes 6 are placed on the first connecting bracket 701 and the second connecting bracket 703 and fixed to the keel frame by fixing bolts 702. The first connecting bracket 701 and the second connecting bracket 703 are sealed to the composite fireproof tempered glass panes 6 by fireproof sealing components.
[0024] In this embodiment, the keel frame, multiple composite fireproof tempered glass 6 and mounting bracket 7 are modularly designed to form a transparent fire barrier. The first connecting bracket 701 and the second connecting bracket 702, together with the fireproof sealing component, connect the composite fireproof tempered glass 6 to the keel frame and achieve the edge sealing effect. This effectively solves the problem of traditional elevator shaft fireproof partitions blocking the view, while achieving an effective fireproof effect.
[0025] The keel frame includes a vertical beam 1 and a horizontal beam 9 fixed on the vertical beam 1. A connecting steel plate 2 is fixed on the horizontal beam 9. The frame also includes a keel frame 3, which is fixed to the connecting steel plate 2 by bolts 4. The end of the keel frame 3 away from the connecting steel plate 2 has a connection position 301 for connecting the composite fireproof tempered glass 6.
[0026] Please see Figure 1 and Figure 5 The keel frame 3 is adapted to different positions. The connection position 301 on the keel frame 3 at the corner of the elevator shaft is right-angled to realize the vertical connection of two adjacent composite fireproof tempered glass 6. The keel frame 3 on the side or front and back of the elevator shaft is set into a T-shaped structure to realize the planar docking of two adjacent composite fireproof tempered glass 6.
[0027] The surfaces of the keel frame 3, crossbeam 9, and vertical beam 1 are all treated with thin-film fireproof fluorocarbon spray coating with a coating thickness of ≥500μm, and the horizontal welding joints are covered with fire-resistant coating.
[0028] Furthermore, the fireproof sealing component includes fireproof silicone 5 connecting the first connecting frame 701 and one side of the composite fireproof tempered glass 6; it also includes a fireproof expansion sealing strip 8 connecting the second connecting frame 703 and the other side of the composite fireproof tempered glass 6. The first connecting frame 701 has elastic bending portions 7011 at both ends, which bend towards the composite fireproof tempered glass 6. The fireproof silicone 5 wraps around the elastic bending portions 7011 and abuts against the keel frame and the composite fireproof tempered glass 6 respectively, thereby achieving a flexible connection between the composite fireproof tempered glass 6 and the keel frame 3. The fireproof expansion sealing strip 8 can rapidly expand when exposed to high temperatures, effectively preventing the spread of fire and smoke. Simultaneously, the fireproof silicone 5 and the fireproof expansion sealing strip 8 work together to form a double fire barrier, further enhancing the safety and reliability of the entire elevator shaft fire protection system.
[0029] The first connecting frame 701, the second connecting frame 703, and the two composite fireproof tempered glass 6 form a cavity, which is filled with rock wool fireproof filler, thereby effectively isolating heat transfer and improving the overall fireproof and heat insulation performance. At the same time, the filling of rock wool fireproof filler also enhances the structural stability between the composite fireproof tempered glass 6 and the mounting frame 7, making the entire fireproof seal more stable and reliable in a fire environment.
[0030] Preferably, a cover 704 is snapped onto the side of the second connecting bracket 703 away from the first connecting bracket 701. The cover 704 is an aluminum profile cover and its surface is coated with fluorocarbon to effectively protect the fixing bolt 702 and prevent flames from entering along the threaded connection.
[0031] The composite fireproof tempered glass 6 has a nano self-cleaning coating on the side away from the keel frame, which makes the visible light transmittance of the composite fireproof tempered glass 6 ≥82%.
[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A composite fireproof device for a sightseeing elevator in a high-rise office lobby, comprising a keel frame, multiple composite fireproof tempered glass panels (6), and a mounting bracket (7); characterized in that, The keel frame is fixed with a mounting bracket (7) for connecting two adjacent composite fireproof tempered glass (6), wherein: the mounting bracket (7) includes a first connecting bracket (701) and a second connecting bracket (703), the end of the composite fireproof tempered glass (6) is placed on the first connecting bracket (701) and the second connecting bracket (703) and fixed to the keel frame by fixing bolts (702), and the first connecting bracket (701) and the second connecting bracket (703) are sealed to the composite fireproof tempered glass (6) by fireproof sealing components.
2. The composite fireproof device for a high-rise office lobby sightseeing elevator according to claim 1, characterized in that, The keel frame includes a vertical beam (1) and a horizontal beam (9) fixed on the vertical beam (1). A connecting steel plate (2) is fixed on the horizontal beam (9). It also includes a keel frame (3), which is fixed to the connecting steel plate (2) by bolts (4). The end of the keel frame (3) away from the connecting steel plate (2) has a connection position (301) for connecting the composite fireproof tempered glass (6).
3. The composite fireproof device for a high-rise office lobby sightseeing elevator according to claim 1, characterized in that, The fireproof sealing component includes fireproof silicone (5) connecting the first connecting frame (701) and one side of the composite fireproof tempered glass (6); it also includes a fireproof expansion sealing strip (8) connecting the second connecting frame (703) and the other side of the composite fireproof tempered glass (6).
4. The composite fireproof device for a high-rise office lobby sightseeing elevator according to claim 3, characterized in that, The first connecting frame (701) has elastic bending portions (7011) at both ends. The elastic bending portions (7011) bend toward the composite fireproof tempered glass (6). The fireproof silicone (5) wraps the elastic bending portions (7011) and abuts against the keel frame and the composite fireproof tempered glass (6) respectively.
5. The composite fireproof device for a high-rise office lobby sightseeing elevator according to claim 1, characterized in that, A cavity is formed between the first connecting frame (701), the second connecting frame (703), and the two composite fireproof tempered glass (6), and the cavity is filled with rock wool fireproof filler.
6. The composite fireproof device for a high-rise office lobby sightseeing elevator according to claim 1, characterized in that, The second connecting frame (703) has a snap-on cover (704) on the side away from the first connecting frame (701).
7. The composite fireproof device for a high-rise office lobby sightseeing elevator according to claim 1, characterized in that, The composite fireproof tempered glass (6) has a nano self-cleaning coating on the side away from the keel frame.