Embedded fire-resistant air pipe flange connecting structure

Abstract

The utility model relates to the technical field of building air pipes, in particular to an embedded type fire-resistant air pipe flange connecting structure which comprises two sections of fire-resistant air pipe bodies, the opposite ends of the two sections of fire-resistant air pipe bodies are fixedly connected with angle steel type embedded flanges, and the angle steel type embedded flanges are fixedly connected with the fire-resistant air pipe bodies through sealing plates. The flange is fixed to the fire-resistant air pipe, the angle steel type flange is adopted in the inner cavity and connected through the C-shaped groove, so that the fire-resistant air pipe is effectively fixed, a formed fire-resistant material is directly inserted into the middle cavity to form a secondary heat preservation structure, and a male and female seaming structure is adopted for fixing outside. A built-in assembly mode is adopted at the joint of the fire-resistant air pipe and the flange, so that the appearance is attractive, display integration is achieved under the condition that no suspended ceiling exists, the height of the fire-resistant air pipe is effectively reduced, embedded secondary heat preservation cannot be seen from the outside, the appearance of the fire-resistant air pipe is in seamless connection, and the fire-resistant reliability of the fire-resistant air pipe is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building air ducts, in particular to an embedded fire-resistant air duct flange connection structure. Background Art

[0002] With the development of economy and the progress of society, public areas such as subways, underground passages and various venues have gradually eliminated suspended ceilings, so the beauty of fire protection or ventilation ducts is particularly critical. At present, the angle steel flange connection or angle steel type flange connection basically used in the market, the connection protrudes from the air duct, which gradually deviates from the decoration style. In the original structure, whether it is angle steel flange or angle steel type flange, it is installed on the outside of the air duct, and the protruding part affects the beauty of the air duct. Some areas have suspension height restrictions, and the angle steel flange of the air duct also has a certain impact (in principle, the impact of the height is not less than 15mm).

[0003] At present, the air duct is installed in an open manner and exposed in public areas. The angle steel flange and angle steel type flange originally used protrude from the air duct surface. Some air ducts need to be renovated twice, and the angle steel flange or angle steel type flange of the existing air duct needs to be insulated twice or protrude from the plane during the connection process, which affects the appearance, increases the cost, and is inconvenient to install. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an embedded fire-resistant air duct flange connection structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An embedded fire-resistant air duct flange connection structure comprises two sections of fire-resistant air duct bodies, the opposite ends of the two sections of the fire-resistant air duct bodies are fixedly connected with angle steel type embedded flanges, the angle steel type embedded flanges and the fire-resistant air duct bodies are connected and fixed by a sealing plate, and the sealing plate adopts a yin-yang bite structure;

[0007] The angle steel embedded flanges on the two sections of the fire-resistant duct body are connected and fixed by a C-shaped groove. Both ends of the fire-resistant duct body are provided with a cavity filled with an insulation layer. The insulation layer is provided with a connecting end on one side close to the angle steel embedded flange.

[0008] Preferably, the connecting end is made of galvanized steel plate, and the galvanized steel plate is assembled by integral continuous molding.

[0009] Preferably, the surface of the angle steel type embedded flange is provided with outer colored steel, and the side of the angle steel type embedded flange close to the C-shaped groove is provided with inner colored steel.

[0010] Preferably, the fire-resistant air duct body adopts a double-layer or multi-layer structure.

[0011] Preferably, the thermal insulation layer is filled with embedded thermal insulation material.

[0012] The beneficial effects of the utility model are:

[0013] The flange is fixed on the fire-resistant air duct, and an angle steel flange is used in the inner cavity, and connected with a C-shaped groove, so as to effectively fix the fire-resistant air duct, and the formed refractory material is directly inserted into the middle cavity to form a secondary insulation structure, and the yin-yang bite structure is used for fixing on the outside. The connection between the refractory air duct and the flange adopts a built-in assembly method, which makes it beautiful in appearance and shows integration in the absence of a ceiling, effectively reducing the height of the fire-resistant air duct, and its embedded secondary insulation cannot be seen from the outside, making the appearance of the fire-resistant air duct seamlessly connected, and further improving its fire-resistant reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of an embedded fire-resistant air duct flange connection structure proposed by the utility model;

[0015] Figure 2 The utility model provides an embedded fire-resistant air duct flange connection structure. Figure 1 The structural diagram of the enlarged point A in the middle;

[0016] Figure 3 A schematic diagram of a fire-resistant air duct body and an angle steel-type embedded flange connection structure of an embedded fire-resistant air duct flange connection structure proposed by the utility model;

[0017] Figure 4 This is a schematic diagram of an angle steel embedded flange structure of an embedded fire-resistant air duct flange connection structure proposed by the utility model;

[0018] Figure 5 The utility model provides a schematic diagram of a top view of an angle steel embedded flange of an embedded fire-resistant air duct flange connection structure.

[0019] In the figure:

[0020] 1. Fire-resistant duct body; 2. Angle steel embedded flange; 3. Connection end; 4. Closing plate; 5. C-shaped groove; 6. Insulation layer; 7. External color steel; 8. Internal color steel. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0023] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0024] Example:

[0025] Reference Figure 1-4 , an embedded fire-resistant air duct flange connection structure, comprising two sections of fire-resistant air duct bodies 1, the opposite ends of the two sections of the fire-resistant air duct bodies 1 are fixedly connected with angle steel type embedded flanges 2, the angle steel type embedded flanges 2 and the fire-resistant air duct body 1 are connected and fixed by a sealing plate 4, and the sealing plate 4 adopts a yin-yang bite structure;

[0026] The angle steel embedded flanges 2 on the two sections of the fire-resistant duct body 1 are connected and fixed by a C-shaped groove 5. Both ends of the fire-resistant duct body 1 are provided with a cavity, and the cavity is filled with an insulation layer 6. The insulation layer 6 is provided with a connecting end 3 on one side close to the angle steel embedded flange 2.

[0027] The connecting end 3 is made of galvanized steel plate, and the galvanized steel plate is made by integral continuous molding and assembly.

[0028] The surface of the angle steel type embedded flange 2 is provided with an outer colored steel 7 , and the side of the angle steel type embedded flange 2 close to the C-shaped groove 5 is provided with an inner colored steel 8 .

[0029] The fire-resistant air duct body 1 adopts a double-layer or multi-layer structure.

[0030] The thermal insulation layer 6 is filled with embedded thermal insulation material.

[0031] In this embodiment, when it is necessary to connect two sections of fire-resistant duct bodies 1, the flanges are first connected and fixed to the two sections of fire-resistant duct bodies 1, and the inner cavities thereof are connected by the angle steel embedded flanges 2, and then the angle steel embedded flanges 2 are connected by the C-shaped grooves 5, so that the fire-resistant duct bodies 1 can be directly connected without fasteners, making the assembly more simple and efficient, and the galvanized steel plate is used as the connection end 3 of the angle steel embedded flange 2, and is assembled by connection molding, so as to effectively fix the fire-resistant duct body 1, and then a layer of insulation layer 6 is assembled and filled with refractory materials between the outer color steel 7 and the inner color steel 8, and then the formed insulation layer 6 is Directly insert it into the middle cavity to form secondary insulation, and then directly insert the sealing plate 4 into the connection between the fire-resistant duct body 1 and the angle steel embedded flange 2. Since the sealing plate 4 adopts a yin-yang bite structure, it can be fixed and assembled by gently squeezing, ensuring that the connection between the fire-resistant duct body 1 and the angle steel embedded flange 2 has good sealing performance, making the appearance of the fire-resistant duct body 1 seamlessly connected, and the flange connection structure and the embedded secondary insulation structure cannot be seen from the outside, and the insulation and assembly processes are completed at the same time, thereby showing integration in the absence of a suspended ceiling, effectively reducing the height of the fire-resistant duct body 1, and improving its fire resistance reliability.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An embedded fire-resistant air duct flange connection structure, comprising two sections of fire-resistant air duct bodies (1), characterized in that: The opposite ends of the two sections of the fire-resistant air duct body (1) are fixedly connected with an angle steel type embedded flange (2), and the angle steel type embedded flange (2) and the fire-resistant air duct body (1) are connected and fixed via a sealing plate (4), and the sealing plate (4) adopts a yin-yang bite structure; The angle steel embedded flanges (2) on the two sections of the fire-resistant duct body (1) are connected and fixed via a C-shaped groove (5); both ends of the fire-resistant duct body (1) are provided with cavities, the cavities are filled with a thermal insulation layer (6), and a connecting end (3) is provided on one side of the thermal insulation layer (6) close to the angle steel embedded flange (2).

2. The embedded fire-resistant air duct flange connection structure according to claim 1, characterized in that: The connecting end (3) is made of a galvanized steel plate, and the galvanized steel plate is made by integral continuous molding and assembly.

3. The embedded fire-resistant air duct flange connection structure according to claim 1, characterized in that: The surface of the angle steel type embedded flange (2) is provided with outer colored steel (7), and the side of the angle steel type embedded flange (2) close to the C-shaped groove (5) is provided with inner colored steel (8).

4. The embedded fire-resistant air duct flange connection structure according to claim 1, characterized in that: The fire-resistant air duct body (1) adopts a double-layer or multi-layer structure.

5. The embedded fire-resistant air duct flange connection structure according to claim 1, characterized in that: The thermal insulation layer (6) is filled with embedded thermal insulation material.

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