Fireproof building curtain wall
The curtain wall unit box design, which combines fire-resistant boards and thermal insulation cotton, solves the problems of flammability and inconvenience in later repairs of building curtain walls, and improves fire resistance and thermal insulation performance as well as facilitates maintenance.
Patent Information
- Application Number
- CN202520188468.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2035-02-07
AI Technical Summary
Existing building curtain walls are easily ignited by open flames and have outstanding thermal insulation performance, but they are fixed to the keel and are inconvenient to repair later.
The curtain wall unit box design, which combines fire-resistant boards and thermal insulation cotton, is fixed by positioning blocks, pins and springs. Combined with locking pins and keel insertion, it achieves detachable fire-resistant and thermal insulation performance. The sliding plate is supported by guide rods and springs for quick installation and removal.
It improves the fire resistance and thermal insulation performance of the curtain wall, while facilitating later maintenance and replacement, thus reducing maintenance costs.
Smart Images

Figure CN223548794U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building curtain walls, specifically a fire-resistant building curtain wall. Background Technology
[0002] Building curtain walls are decorative and functional components of the exterior walls of buildings. Curtain walls can not only beautify the appearance of buildings, but also provide functions such as heat preservation, heat insulation, wind protection, and waterproofing.
[0003] In the invention application patent with publication number CN107558644A, a building curtain wall is disclosed, which includes one or more curtain wall panels spliced together. A decorative edge is installed at the junction of the outer walls of each curtain wall panel to seal the gap between the curtain wall panels. The curtain wall panels are all fixedly installed on the keel frame of the building.
[0004] Existing building curtain walls typically emphasize thermal insulation performance, but due to the nature of their materials, they are easily ignited by open flames, posing a safety risk. Furthermore, they are usually fixed to a keel, making later repairs inconvenient. Therefore, improvements are needed. Utility Model Content
[0005] The purpose of this utility model is to provide a fire-resistant building curtain wall, which solves the problem that existing building curtain walls generally have outstanding thermal insulation performance, but due to the material, they are easily ignited by open flames, which is not safe enough. At the same time, it also solves the problem that they are generally fixed to the keel, making later repairs inconvenient.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a fire-resistant building curtain wall, comprising two keels fixedly connected to the wall, a curtain wall unit box slidably connected between the two keels, a fire-resistant board on the surface of the curtain wall unit box, a positioning block fixedly connected to the side of the fire-resistant board near the curtain wall unit box, the positioning block being inserted into the curtain wall unit box, a locking pin slidably connected inside the curtain wall unit box, the locking pin engaging with the positioning block, a spring being provided inside the curtain wall unit box, a sliding plate slidably connected inside the curtain wall unit box, a locking pin fixedly connected to the sliding plate, the locking pin penetrating the curtain wall unit box and slidably connected to the curtain wall unit box, and the locking pin being inserted into the keel.
[0007] Preferably, thermal insulation cotton is placed inside the curtain wall unit box, and the thermal insulation cotton is in contact with the fire-resistant board. The addition of thermal insulation cotton can increase the thermal insulation performance of the curtain wall unit box.
[0008] Preferably, one end of the first spring is fixedly connected to the locking pin, and the other end of the first spring is fixedly connected to the inner surface of the curtain wall unit box. By setting the first spring, the elastic force can be applied to the locking pin, ensuring it is always locked into the positioning block.
[0009] Preferably, the sliding plate is provided with ball bearings on its side, and the ball bearings are slidably connected to the inner surface of the curtain wall unit box. By providing ball bearings, the relative friction between the sliding plate and the curtain wall unit box can be reduced.
[0010] Preferably, a guide rod is fixedly connected inside the curtain wall unit box. The guide rod passes through the sliding plate and is slidably connected to it. A spring is sleeved on the outer side of the guide rod. The guide rod guides the sliding of the sliding plate.
[0011] Preferably, one end of the second spring is fixedly connected to a sliding piece, and the other end of the second spring is fixedly connected to the inner surface of the curtain wall unit box. By configuring the second spring, the reaction force can be applied to the sliding piece, ensuring that the locking pin on the sliding piece is always inserted into the keel.
[0012] Preferably, a protective locking block is fixedly connected inside the curtain wall unit box. The protective locking block passes through the sliding plate and engages with it. The protective locking block provides a locking function for the sliding plate, preventing accidental contact or loosening.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model increases the thermal insulation of the curtain wall unit box by inserting a thermal insulation cotton inside the unit box. Then, a fire-resistant board is attached to the surface of the unit box and locked in place by positioning blocks, pins and springs, which increases the fire resistance of the unit box. In addition, the fire-resistant board is detachable, making it easy to replace later without replacing the whole unit, thus reducing costs.
[0015] 2. This utility model provides a sliding plate that is elastically supported by a spring and a guide rod inside the upper and lower ends of the curtain wall unit box. A locking pin is provided on the sliding plate. The locking pin will be inserted into the keel under the action of the spring. In this way, the curtain wall unit box can be quickly disassembled and assembled by simply controlling the engagement and disengagement of the locking pin and the keel. Attached Figure Description
[0016] Figure 1 This is a perspective view of the overall structure of this utility model;
[0017] Figure 2 For the present utility model Figure 1 A three-dimensional sectional view of the local structure;
[0018] Figure 3 For the present utility model Figure 1 Top sectional view;
[0019] Figure 4 For the present utility model Figure 3 Enlarged view of the A-section structure;
[0020] Figure 5 For the present utility model Figure 1 A front sectional view;
[0021] Figure 6 For the present utility model Figure 5 Enlarged view of the structure of part B.
[0022] In the diagram: 1. Keel; 2. Curtain wall unit box; 3. Fire-resistant board; 4. Insulation cotton; 5. Positioning block; 6. Locking pin; 7. Spring 1; 8. Sliding plate; 9. Locking pin; 10. Ball bearing; 11. Guide rod; 12. Spring 2; 13. Protective locking block. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 A fire-resistant building curtain wall includes two keels 1 fixedly connected to the wall, a curtain wall unit box 2 slidably connected between the two keels 1, a fire-resistant board 3 in contact with the surface of the curtain wall unit box 2, and thermal insulation cotton 4 placed inside the curtain wall unit box 2, in contact with the fire-resistant board 3. The thermal insulation cotton 4 enhances the thermal insulation performance of the curtain wall unit box 2.
[0025] Please see Figure 3 , Figure 4 A positioning block 5 is fixedly connected to the side of the fire-resistant board 3 near the curtain wall unit box 2. The positioning block 5 is inserted into the curtain wall unit box 2. A locking pin 6 is slidably connected inside the curtain wall unit box 2, and the locking pin 6 is engaged with the positioning block 5. A spring 7 is installed inside the curtain wall unit box 2. One end of the spring 7 is fixedly connected to the locking pin 6, and the other end of the spring 7 is fixedly connected to the inner surface of the curtain wall unit box 2. By setting the spring 7, the elastic force can be applied to the locking pin 6, so that it is always locked into the positioning block 5.
[0026] Please see Figure 5 , Figure 6The curtain wall unit box 2 has a sliding piece 8 internally connected to a sliding plate. A locking pin 9 is fixedly connected to the sliding plate 8, passing through the curtain wall unit box 2 and slidably connected to it. The locking pin 9 is also inserted into the keel 1. A ball bearing 10 is provided on the side of the sliding plate 8, and the ball bearing 10 is slidably connected to the inner surface of the curtain wall unit box 2. The ball bearing 10 reduces the relative friction between the sliding plate 8 and the curtain wall unit box 2. A guide rod 11 is fixedly connected internally to the curtain wall unit box 2, passing through the sliding plate 8 and slidably connected to it. A second spring 12 is sleeved on the outer side of the guide rod 11. The guide rod 11 guides the sliding of the sliding plate 8. One end of the second spring 12 is fixedly connected to the sliding plate 8, and the other end is fixedly connected to the inner surface of the curtain wall unit box 2. The second spring 12 provides a reaction force to the sliding plate 8, ensuring that the locking pin 9 on the sliding plate 8 is always inserted into the keel 1. The curtain wall unit box 2 is internally fixedly connected with a protective locking block 13, which passes through the slider 8 and engages with it. The protective locking block 13 locks the slider 8 to prevent accidental contact or loosening.
[0027] The specific implementation process of this utility model is as follows: In use, first pull the slider 8 so that the locking pin 9 on the slider 8 retracts into the curtain wall unit box 2. Then, place the curtain wall unit box 2 between the two keels 1 on the wall. Then, release the slider 8. The slider 8 returns to its original position under the action of the spring 12, and the locking pin 9 on the slider 8 will be inserted into the keel 1. Then, the protective locking block 13 will also penetrate the slider 8 and lock the slider 8. Then, the insulation cotton 4 is put into the curtain wall unit box 2. Then, the fireproof board 3 is attached to the surface of the curtain wall unit box 2, and the positioning block 5 on the fireproof board 3 is inserted into the curtain wall unit box 2 and locked by the locking pin 6. In this way, the overall assembly is completed.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fire-resistant building curtain wall, comprising two keels (1) fixedly connected to the wall, characterized in that: A curtain wall unit box (2) is slidably connected between the two keels (1). A fire-resistant board (3) is in contact with the surface of the curtain wall unit box (2). A positioning block (5) is fixedly connected to the side of the fire-resistant board (3) near the curtain wall unit box (2). The positioning block (5) is inserted into the curtain wall unit box (2). A locking pin (6) is slidably connected inside the curtain wall unit box (2). The locking pin (6) is engaged with the positioning block (5). A spring (7) is provided inside the curtain wall unit box (2). A sliding piece (8) is slidably connected inside the curtain wall unit box (2). A locking pin (9) is fixedly connected to the sliding piece (8). The locking pin (9) passes through the curtain wall unit box (2) and is slidably connected to the curtain wall unit box (2). The locking pin (9) is inserted into the keel (1).
2. The fire-resistant building curtain wall according to claim 1, characterized in that: The inner side of the curtain wall unit box (2) is filled with thermal insulation cotton (4), which is in contact with the fire-resistant board (3).
3. The fire-resistant building curtain wall according to claim 1, characterized in that: One end of the spring (7) is fixedly connected to the locking pin (6), and the other end of the spring (7) is fixedly connected to the inner surface of the curtain wall unit box (2).
4. A fire-resistant building curtain wall according to claim 1, characterized in that: The side of the slide plate (8) is provided with a ball bearing (10), which is slidably connected to the inner surface of the curtain wall unit box (2).
5. A fire-resistant building curtain wall according to claim 1, characterized in that: The curtain wall unit box (2) is fixedly connected to a guide rod (11). The guide rod (11) passes through the slide plate (8) and is slidably connected to the slide plate (8). A spring (12) is sleeved on the outside of the guide rod (11).
6. A fire-resistant building curtain wall according to claim 5, characterized in that: One end of the second spring (12) is fixedly connected to the slide plate (8), and the other end of the second spring (12) is fixedly connected to the inner surface of the curtain wall unit box (2).
7. A fire-resistant building curtain wall according to claim 1, characterized in that: The curtain wall unit box (2) is internally fixedly connected to a protective locking block (13), which passes through the sliding piece (8) and engages with the sliding piece (8).
Citation Information
Patent Citations
Building curtain wall
CN107558644A