An assembled circular air pipe wall-passing fire valve assembly

Abstract

An assembled circular air pipe wall-passing fireproof valve assembly, comprising a pre-buried component and a wall-passing fireproof valve, the pre-buried component is pre-buried and installed on a fireproof wall, the wall-passing fireproof valve comprises a fireproof valve shell, an annular sealing rib a, an annular sealing rib b, a valve piece, a control unit and an end flange, the annular sealing rib a and the annular sealing rib b are prefabricated on the fireproof valve shell, the annular sealing rib b is limitingly fixed with the pre-buried component, the annular sealing rib a is fixed with the fireproof wall through expansion bolts, and fireproof washers are arranged between fixed surfaces.The assembled installation of the wall-passing fireproof valve is realized, prefabricated production of the pre-buried component and the fireproof valve ensures precision and quality, a double sealing structure effectively improves fireproof performance, cooperation of the expansion bolts and the limiting rib guarantees installation stability, and the wall-passing fireproof valve assembly is suitable for circular air pipe wall-passing scenes of various building ventilation and fire extinguishing systems.

Description

Technical Field

[0001] This utility model relates to the field of building ventilation technology, and in particular to a prefabricated circular duct wall-mounted fire damper assembly. Background Technology

[0002] In building ventilation and fire protection systems, fire dampers are crucial components for ensuring fire safety. Their primary function is to automatically close in the event of a fire, preventing the spread of fire and smoke through the ductwork. Traditionally, duct installation openings are pre-drilled in firewalls, and after the ducts are installed, the fire dampers are then installed on the ducts on either side of the firewall. However, installing fire dampers on firewalls requires considerable space, making installation difficult in areas with limited space. Furthermore, the weight of the fire damper on the duct can cause deformation of the connected duct, necessitating separate supports and increasing construction complexity. The pre-drilled duct openings need to be filled with non-combustible materials such as asbestos rope, which is difficult to do and prone to uneven filling, potentially reducing fire resistance. Summary of the Invention

[0003] This utility model aims to address the shortcomings of existing technologies by providing an assembled circular duct wall-mounted fire damper assembly.

[0004] To achieve the above objectives, this utility model adopts the following technical solution:

[0005] An assembled circular duct through-wall fire damper assembly includes a pre-embedded component 1 and a through-wall fire damper 2. The pre-embedded component 1 is pre-embedded in the wall surface of the firewall 3 through which the duct 6 passes. The through-wall fire damper 2 includes a fire damper housing 2.1, annular sealing ribs a2.2 and b2.3, a valve plate 2.4, a control unit 2.5, and an end flange 2.6. The valve plate 2.4 is disposed inside the fire damper housing 2.1 and is electrically connected to the control unit 2.5 disposed outside the fire damper housing 2.1. The annular sealing ribs a2.2 and b2.3 are pre-fabricated at both ends of the fire damper housing 2.1. The annular sealing rib b2.3 is limited and fixed to the pre-embedded component 1. The annular sealing rib a2.2 is fixed to the firewall 3 by expansion bolts 4, and fireproof gaskets 5 are provided between the fixing surfaces.

[0006] The length of the pre-embedded component 1 is the same as the thickness of the firewall 3, and an annular sealing ring 1.1 is provided at one end of the pre-embedded component 1.

[0007] The outer diameter of the annular sealing rib a2.2 at one end of the wall-mounted fire damper 2 is larger than the outer diameter of the embedded component 1, and several bolt holes are provided on the annular sealing rib a2.2. Expansion bolts 4 pass through the bolt holes and are fastened to the firewall 4.

[0008] The outer diameter of the annular sealing rib b2.3 at the other end of the wall-mounted fire damper 2 is smaller than the inner diameter of the embedded component 1, and the annular sealing rib b2.3 is limited and fixed within the annular sealing ring 1.1 of the embedded component 1.

[0009] The wall-mounted fire damper 2 is provided with end flanges 2.6 at both ends. Several screw holes are provided on the end flanges 2.6. The end flanges 2.6 are fastened to the flange plate 8 provided at the joint of the air duct 6 by fixing bolts 7 passing through the bolt holes.

[0010] A fireproof gasket 5 is provided between the end flange 2.6 and the flange plate 8.

[0011] The beneficial effects of this utility model are: This utility model realizes the assembled installation of the through-wall fire damper, the prefabrication of the embedded components and the fire damper ensures the accuracy and quality, the double sealing structure effectively improves the fire resistance performance, and the cooperation between the expansion bolts and the limiting ribs ensures the stability of the installation. It is suitable for circular air ducts passing through walls in various building ventilation and fire protection systems. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] In the diagram: 1-Embedded component; 1.1-Annular sealing ring; 2-Through-wall fire damper; 2.1-Fire damper housing; 2.2-Annular sealing rib a; 2.3-Annular sealing rib b; 2.4-Valve plate; 2.5-Control unit; 2.6-End flange; 3-Fire wall; 4-Expansion bolt; 5-Fireproof gasket; 6-Air duct; 7-Fixing bolt; 8-Flange plate;

[0014] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] An assembled circular duct through-wall fire damper assembly includes a pre-embedded component 1 and a through-wall fire damper 2. The pre-embedded component 1 is pre-embedded in the wall surface of the firewall 3 through which the duct 6 passes. The through-wall fire damper 2 includes a fire damper housing 2.1, annular sealing ribs a2.2 and b2.3, a valve plate 2.4, a control unit 2.5, and an end flange 2.6. The valve plate 2.4 is disposed inside the fire damper housing 2.1 and is electrically connected to the control unit 2.5 disposed outside the fire damper housing 2.1. The annular sealing ribs a2.2 and b2.3 are pre-fabricated at both ends of the fire damper housing 2.1. The annular sealing rib b2.3 is limited and fixed to the pre-embedded component 1. The annular sealing rib a2.2 is fixed to the firewall 3 by expansion bolts 4, and fireproof gaskets 5 are provided between the fixing surfaces.

[0017] The length of the pre-embedded component 1 is the same as the thickness of the firewall 3, and an annular sealing ring 1.1 is provided at one end of the pre-embedded component 1.

[0018] The outer diameter of the annular sealing rib a2.2 at one end of the wall-mounted fire damper 2 is larger than the outer diameter of the embedded component 1, and several bolt holes are provided on the annular sealing rib a2.2. Expansion bolts 4 pass through the bolt holes and are fastened to the firewall 4.

[0019] The outer diameter of the annular sealing rib b2.3 at the other end of the wall-mounted fire damper 2 is smaller than the inner diameter of the embedded component 1, and the annular sealing rib b2.3 is limited and fixed within the annular sealing ring 1.1 of the embedded component 1.

[0020] The wall-mounted fire damper 2 is provided with end flanges 2.6 at both ends. Several screw holes are provided on the end flanges 2.6. The end flanges 2.6 are fastened to the flange plate 8 provided at the joint of the air duct 6 by fixing bolts 7 passing through the bolt holes.

[0021] A fireproof gasket 5 is provided between the end flange 2.6 and the flange plate 8.

[0022] During installation, S1: Embedded component 1 is installed in place along with firewall 3;

[0023] S2: A fireproof gasket 5 is installed on the right side of the annular sealing rib b2.3, and the fireproof valve 2 is inserted into the embedded component 1;

[0024] S3: Install an annular fireproof gasket 5 on the left side of the firewall 3 and compact the annular sealing rib a2.2;

[0025] S4: Install expansion bolts 4 to fix the annular sealing rib a2.2 to the left side of the firewall 3.

[0026] S5: The end flanges 2.6 at both ends of the fire damper 2 are connected to the flange plate 8 of the air duct 6 by fixing bolts 7, and fire venting gaskets 5 are installed between the end flanges 2.6 and the flange plate 8.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A prefabricated circular duct wall-mounted fire damper assembly, characterized in that, The device includes a pre-embedded component (1) and a through-wall fire damper (2). The pre-embedded component (1) is pre-embedded in the wall of the firewall (3) through which the air duct (6) passes. The through-wall fire damper (2) includes a fire damper housing (2.1), annular sealing rib a (2.2), annular sealing rib b (2.3), a valve plate (2.4), a control unit (2.5), and an end flange (2.6). The valve plate (2.4) is located inside the fire damper housing (2.1) and is electrically connected to the control unit (2.5) located outside the fire damper housing (2.1). The annular sealing rib a (2.2) and the annular sealing rib b (2.3) are prefabricated at both ends outside the fire damper housing (2.1). The annular sealing rib b (2.3) is limited and fixed to the pre-embedded component (1). The annular sealing rib a (2.2) is fixed to the firewall (3) by expansion bolts (4), and fireproof gaskets (5) are provided between the fixing surfaces.

2. The assembled circular duct wall-mounted fire damper assembly according to claim 1, characterized in that, The length of the pre-embedded component (1) is the same as the thickness of the firewall (3), and an annular sealing ring (1.1) is provided at one end of the pre-embedded component (1).

3. The assembled circular duct wall-mounted fire damper assembly according to claim 1, characterized in that, The outer diameter of the annular sealing rib a (2.2) at one end of the wall-mounted fire damper (2) is larger than the outer diameter of the embedded component (1), and several bolt holes are provided on the annular sealing rib a (2.2), through which expansion bolts (4) pass and are fastened to the firewall (3).

4. The assembled circular duct wall-mounted fire damper assembly according to claim 2, characterized in that, The outer diameter of the annular sealing rib b (2.3) provided at the other end of the wall-mounted fire damper (2) is smaller than the inner diameter of the embedded component (1), and the annular sealing rib b (2.3) is limited and fixed within the annular sealing ring (1.1) of the embedded component (1).

5. The assembled circular duct wall-mounted fire damper assembly according to claim 1, characterized in that, The wall-mounted fire damper (2) is provided with end flanges (2.6) at both ends. Several screw holes are provided on the end flanges (2.6). The end flanges (2.6) are fastened to the flange plate (8) provided at the joint of the air duct (6) by means of fixing bolts (7) passing through the bolt holes.

6. A prefabricated circular duct wall-mounted fire damper assembly according to claim 5, characterized in that, A fireproof gasket (5) is provided between the end flange (2.6) and the flange plate (8).

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