An assembled smoke screen vertical wall
By adopting a prefabricated smoke curtain structure and utilizing components such as expansion bolts and snap-fit connections, on-site assembly without welding is achieved, solving the problems of complex installation and safety hazards of existing smoke curtains, and improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI CHINA CONSTR EIGHTH ENG DIVISION DECORA
- Filing Date
- 2025-05-15
- Publication Date
- 2026-06-16
AI Technical Summary
The existing smoke curtain installation structure is complex and requires welding operations, which leads to problems such as complicated construction, high cost, and fire safety hazards.
The prefabricated smoke curtain, which uses physical connections between its components, including expansion bolts, snap-fit connectors, aluminum profile frames, fireproof cloth, and glass, is prefabricated in the factory and only requires assembly on site, avoiding welding.
It simplifies the installation process, improves construction efficiency and safety, reduces costs, and ensures the flatness and compactness of the installation.
Smart Images

Figure CN224357920U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of interior decoration technology, and in particular to a prefabricated smoke curtain. Background Technology
[0002] In high-rise or super high-rise shopping malls, office buildings, and warehouses, smoke curtains that hang from the building's ceiling are usually required during interior decoration to prevent smoke from flowing horizontally under the ceiling, thereby improving the smoke exhaust effect within the smoke control zone and ensuring the safety of the building's indoor environment.
[0003] The existing installation structure of smoke curtains typically involves constructing a suspended wall using light steel keel and gypsum board, then fixing glass grooves to the suspended wall before installing the glass. This existing structure is quite complex, containing numerous fragmented components and often requiring welding during installation. Welding demands a high level of technical skill from construction workers, and the high temperatures and open flames generated during on-site welding pose certain risks. Consequently, the installation process is cumbersome, labor-intensive, and lacks efficiency and effectiveness, while also presenting fire safety hazards. Utility Model Content
[0004] In order to solve the above problems, the present invention aims to provide a prefabricated smoke curtain in which all components are physically connected, eliminating the need for on-site welding.
[0005] This utility model provides a prefabricated smoke curtain, characterized in that it is composed of several adjacent smoke curtain units, each smoke curtain unit including: expansion bolts, snap-fit connection components, aluminum profile frame, fireproof cloth, first bolt, U-shaped clamp, second bolt, and smoke curtain glass; the snap-fit connection components are fixed to the bottom of the concrete floor slab by expansion bolts; the upper end of the aluminum profile frame is bolted to the snap-fit connection components, and the aluminum profile frame is perpendicular to the concrete floor slab; the first bolt is installed at the lower end of the aluminum profile frame, vertically downward, and the U-shaped clamp is connected to the lower end of the first bolt, with the opening of the U-shaped clamp facing downward; the lower end face of the U-shaped clamp is flush with the lower surface of the ceiling; the smoke curtain glass is clamped at the opening of the U-shaped clamp, the second bolt is horizontally positioned, penetrates the smoke curtain glass, and is connected and fixed to the U-shaped clamp; the upper edge of the fireproof cloth is fixed to the concrete floor slab, the fireproof cloth covers the aluminum profile frame, and the lower edge of the fireproof cloth extends to contact the upper surface of the ceiling.
[0006] Furthermore, the assembled smoke curtain provided by this utility model may also have the following features: the snap-fit connection assembly consists of a slot and a fastener. The slot includes a horizontally arranged embedded plate portion, the lower surface of which is connected to a vertically arranged vertical plate portion. One side of the embedded plate portion forms a downwardly extending edge, and the lower end of the vertical plate portion forms an upwardly extending edge opposite to the downwardly extending edge. The upwardly extending edge and the downwardly extending edge form a slot. The fastener has a vertical protrusion structure that cooperates with the downwardly extending edge and a horizontal protrusion structure that abuts against the downwardly extending edge.
[0007] Furthermore, the assembled smoke curtain provided by this utility model may also have the following features: a gasket is installed between the vertical protrusion structure of the fastener and the downward extension edge of the slot.
[0008] Furthermore, the assembled smoke curtain provided by this utility model may also have the following features: the embedded plate part of the slot component is provided with a long bolt hole, and the long bolt hole is connected to the expansion bolt.
[0009] Furthermore, the assembled smoke curtain provided by this utility model may also have the following features: the aluminum profile frame is a rectangular frame, which is composed of an upper strip, a lower strip, a left strip and a right strip connected by bolts, and fireproof cloth installation grooves are provided on the upper strip, the lower strip, the left strip and the right strip.
[0010] Furthermore, the assembled smoke curtain provided by this utility model may also have the following features: the fireproof cloth is installed in the fireproof cloth mounting groove by an aluminum pressure strip.
[0011] Furthermore, the assembled smoke curtain provided by this utility model may also have the following features: the lower surface of the lower strip is provided with a bolt mounting groove, the bolt head of the first bolt is located in the bolt mounting groove, and the bolt shank of the first bolt is connected to the U-shaped clamp and fixed by a nut.
[0012] Furthermore, the assembled smoke curtain provided by this utility model may also have the following characteristics: there is a gap between adjacent smoke curtain units, and the gap is filled with transparent fireproof adhesive.
[0013] Furthermore, the assembled smoke curtain provided by this utility model may also have the following characteristics: the gap distance is 5mm.
[0014] Furthermore, the prefabricated smoke curtain provided by this utility model may also have the following features: the upper edge of the fireproof cloth is fixed to the concrete floor slab by fixing aluminum strips and screws.
[0015] The function and effects of this utility model:
[0016] This utility model's prefabricated smoke curtain has a simple structure, transferring the on-site welding process to factory prefabrication. On-site assembly is only required, eliminating the need for welding or open flames. In the upper part of the prefabricated smoke curtain, fireproof cloth is fixed to the building's structural floor slab and aluminum profile frame for sealing, effectively blocking smoke flow above the ceiling. In the lower part, the smoke curtain glass is suspended and fixed using U-shaped clamps, blocking smoke flow below the ceiling. This embodiment of the prefabricated smoke curtain is convenient and efficient to operate; it saves energy and has a low cost; all components are prefabricated and manufactured in a standardized factory. Compared to on-site welding, its assembly and installation flatness and density are significantly improved, and rapid installation is possible. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the assembled smoke curtain in an embodiment of the present utility model;
[0018] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;
[0019] Figure 3 This is a schematic diagram of the slot component in the snap-fit assembly connector of this utility model embodiment;
[0020] Figure 4 This is a schematic diagram showing the installation of the snap-fit assembly connector in an embodiment of this utility model;
[0021] Figure 5 This is a structural schematic diagram of the aluminum profile frame in an embodiment of this utility model;
[0022] Figure 6 This is the book Figure 1 A magnified view of a section at point B in the middle;
[0023] Figure 7 This is a front structural diagram of the assembled smoke curtain in an embodiment of this utility model. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following embodiments, in conjunction with the accompanying drawings, will specifically illustrate the technical solution of this utility model.
[0025] <Example>
[0026] See Figure 1 and Figure 7 This embodiment provides a prefabricated smoke curtain, which is composed of several adjacent smoke curtain units. Figure 7The illustration shows two adjacent smoke curtain units, but this is not a limitation. In other embodiments, more smoke curtain units can be set according to the actual building conditions and the size requirements of the smoke curtain units.
[0027] See Figure 1 and Figure 7 Each smoke curtain unit includes: expansion bolt 2, snap-fit connection assembly 3, aluminum profile frame 5, fireproof cloth 4, first bolt 8, U-shaped clamp 9, second bolt 7, and smoke curtain glass 6.
[0028] See Figure 1 and Figure 2 The snap-fit connection assembly 3 is fixed to the underside of the concrete floor slab 1 by expansion bolts 2. The snap-fit connection assembly 3 is used to suspend the aluminum profile frame 5. See also... Figures 2 to 4 The snap-fit connection assembly 3 consists of a slot 31 and a fastener 32.
[0029] See Figure 3 The slot component 31 includes a horizontally arranged embedded plate portion. The embedded plate portion of the slot component 31 is provided with an elongated bolt hole 31a, which is connected to the expansion bolt 2. A vertically arranged vertical plate portion is connected to the lower surface of the embedded plate portion of the slot component 31. One edge of the embedded plate portion forms a downward extending edge, and the lower end of the vertical plate portion forms an upward extending edge opposite to the downward extending edge. The upward extending edge and the downward extending edge form a slot 31b.
[0030] Fastener 32 has a vertical protrusion that mates with the downwardly extending edge and a horizontal protrusion that abuts against the lower extending edge. See also Figure 2 Fastener 32 is connected and fixed to the aluminum profile frame 5 by self-tapping screws 33. See also Figure 4 In some embodiments, a shim 34 is also installed between the vertical protrusion structure of the fastener 32 and the downward extension edge of the slot 31. By adding a shim at the fastening point of the fastener 32 and the slot 31b, the verticality of the aluminum profile frame 5 can be adjusted.
[0031] See Figure 1 , Figure 2 and Figure 7 The upper end of the aluminum profile frame 5 is connected and fixed to the fastener 32, and the aluminum profile frame 5 is perpendicular to the concrete floor slab 1. The upper edge of the fireproof cloth 4 is fixed to the concrete floor slab 1 by fixing aluminum strips 11 and screws, and the fireproof cloth 4 covers the aluminum profile frame 5, and the lower edge of the fireproof cloth 4 extends to contact the upper surface of the ceiling 10 (in this embodiment, the ceiling is a gypsum board ceiling).
[0032] See Figure 5 The aluminum profile frame 5 is a rectangular frame, composed of an upper strip 5a, a lower strip 5b, a left strip 5c, and a right strip 5d. (See also...) Figure 2 and Figure 5 The aluminum profile frame 5 is provided with bolt holes 51 for mounting bolts. The upper strip 5a, lower strip 5b, left strip 5c, and right strip 5d are connected and fixed by bolts 53. Each of the upper strip 5a, lower strip 5b, left strip 5c, and right strip 5d is provided with a fireproof cloth mounting groove 52. The fireproof cloth 4 is installed in the fireproof cloth mounting groove 52 by an aluminum pressure strip 12. Furthermore, the aluminum pressure strip 12 and the aluminum profile frame 5 are also fixed by screws (not shown in the diagram).
[0033] See Figure 6 The lower surface of the lower edge strip 5b of the aluminum profile frame 5 is provided with a bolt mounting groove. The bolt head 8a of the first bolt 8 is located in the bolt mounting groove. The bolt shank 8b of the first bolt 8 is connected to the U-shaped clamp 9 and fastened by two nuts 81.
[0034] Preferably, the upper edge strip 5a, lower edge strip 5b, left edge strip 5c, and right edge strip 5d all adopt the same structure, which facilitates mass production in the factory and reduces manufacturing costs. In addition, since the edge strips of the aluminum profile frame 5 are prefabricated in the factory, only assembly and connection are required on site, without the need for welding or open flames.
[0035] See Figure 1 and Figure 6 The first bolt 8 is installed at the lower end of the aluminum profile frame 5, vertically downwards. A U-shaped clamp 9 is connected to the lower end of the first bolt 8, with the opening of the U-shaped clamp 9 facing downwards. The lower end face of the U-shaped clamp 9 is flush with the lower surface of the suspended ceiling 10. The smoke curtain glass 6 is clamped at the opening of the U-shaped clamp 9. The second bolt 7 is horizontally positioned, with the bolt shank 7b passing through the smoke curtain glass 6 and connecting to the U-shaped clamp 9, and is secured by a nut 71.
[0036] A gap is provided between adjacent smoke curtain units (see...) Figure 7 (As shown at position C), the gap is 5mm, and the gap is filled with transparent fireproof glue to ensure that the glass has room to expand when exposed to high temperatures.
[0037] The prefabricated smoke curtain of this embodiment has the following advantages: Its structure is simple, transferring the on-site welding process to factory prefabrication. On-site assembly is only required, eliminating the need for welding or open flames. In the upper part of the prefabricated smoke curtain, fireproof cloth is fixed to the building's structural floor slab and aluminum profile frame for sealing, effectively blocking smoke flow above the ceiling. In the lower part, the smoke curtain glass is suspended and fixed using U-shaped clamps to block smoke flow below the ceiling. This prefabricated smoke curtain is convenient and efficient to operate; it saves energy and has a lower cost; all components are prefabricated and manufactured in a factory, significantly improving the flatness and compactness of the assembly compared to on-site welding, and enabling rapid installation.
[0038] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.
Claims
1. A prefabricated smoke curtain, characterized in that: It consists of several adjacent smoke curtain units, each smoke curtain unit including: expansion bolts, snap-fit connection components, aluminum profile frame, fireproof cloth, first bolt, U-shaped clamp, second bolt and smoke curtain glass; The snap-fit connection assembly is fixed to the underside of the concrete floor slab by the expansion bolts; The upper end of the aluminum profile frame is bolted to the snap-fit connection assembly, and the aluminum profile frame is perpendicular to the concrete floor slab. The first bolt is installed at the lower end of the aluminum profile frame and is set vertically downwards. The U-shaped clamp is connected to the lower end of the first bolt, and the opening of the U-shaped clamp faces downwards. The lower end face of the U-shaped clamp is flush with the lower surface of the suspended ceiling; The smoke curtain glass is clamped at the opening of the U-shaped clamp, and the second bolt is set in a horizontal direction. The second bolt passes through the smoke curtain glass and is connected and fixed to the U-shaped clamp. The upper edge of the fireproof cloth is fixed to the concrete floor slab, the fireproof cloth covers the aluminum profile frame, and the lower edge of the fireproof cloth extends to contact the upper surface of the ceiling.
2. The assembled smoke curtain as described in claim 1, characterized in that: in, The snap-fit connection assembly consists of a slot and a fastener. The slot component includes a horizontally arranged embedded plate portion, a vertically arranged vertical plate portion connected to the lower surface of the embedded plate portion, a downwardly extending edge formed along one side of the embedded plate portion, and an upwardly extending edge formed at the lower end of the vertical plate portion opposite to the downwardly extending edge. The upwardly extending edge and the downwardly extending edge constitute a slot. The fastener has a vertical protrusion that engages with the downwardly extending edge and a horizontal protrusion that abuts against the lower extending edge.
3. The assembled smoke curtain as described in claim 2, characterized in that: in, A gasket is also installed between the vertical protrusion of the fastener and the downward extension edge of the slot.
4. The assembled smoke curtain as described in claim 2, characterized in that: in, The embedded plate portion of the slot component is provided with elongated bolt holes, which are connected to the expansion bolts.
5. The assembled smoke curtain as described in claim 1, characterized in that: in, The aluminum profile frame is a rectangular frame, consisting of an upper strip, a lower strip, a left strip, and a right strip connected by bolts. Each of the upper strip, the lower strip, the left strip, and the right strip is provided with a fireproof cloth mounting groove.
6. The assembled smoke curtain as described in claim 4, characterized in that: in, The fireproof cloth is installed in the fireproof cloth mounting groove by an aluminum pressure strip.
7. The assembled smoke curtain as described in claim 4, characterized in that: in, The lower surface of the lower strip is provided with a bolt mounting groove, the bolt head of the first bolt is located in the bolt mounting groove, and the bolt shank of the first bolt is connected to the U-shaped clamp and fixed by a nut.
8. The assembled smoke curtain as described in claim 1, characterized in that: in, A gap is provided between adjacent smoke curtain units, and the gap is filled with transparent fireproof adhesive.
9. The assembled smoke curtain as described in claim 8, characterized in that: in, The distance of the gap is 5mm.
10. The assembled smoke curtain as described in claim 1, characterized in that: in, The upper edge of the fireproof cloth is fixed to the concrete floor slab by fixing aluminum strips and screws.