Fabricated smoke exhaust pipe for residence

The prefabricated smoke exhaust duct structure, composed of aluminum alloy profiles and cement fiberboard, solves the problems of heavy weight and complex installation, achieving lightweight and convenient installation, while also providing heat insulation and decorative functions.

CN121557501APending Publication Date: 2026-02-24HUNAN XINGNENG PIPELINE CO LTD
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Patent Information

Application Number
CN202511969508.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-24
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

Existing residential exhaust ducts are heavy and complex to manufacture and install, especially metal ducts which require specialized hoisting equipment and are not insulated.

Method used

It adopts an assembled structure consisting of columns, connectors, metal pipes and non-metallic plates. The columns and connectors are made of aluminum alloy profiles, the metal pipes are galvanized square pipes, and the non-metallic plates are cement fiberboard. They are fixed by adhesive and fasteners, and combined with pipe connectors and air inlet components, it can be assembled on site.

Benefits of technology

It achieves lightweight design, facilitates transportation and installation, and possesses excellent thermal insulation and decorative properties.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a house assembly type smoke exhaust pipe which comprises a hollow square support composed of four stand columns and connecting pieces connected between the stand columns, a metal pipe arranged in the support and a non-metal plate arranged outside the support in a wrapping mode, and the metal pipe is fixedly connected into the support through glue. And the non-metal plate is fixed on the bracket through a fastener or glue. The metal pipes, the non-metal plates, the stand columns and the connecting pieces can be combined and assembled into the needed smoke exhaust pipe on site, and the smoke exhaust pipe has the advantages of being light in weight and convenient to transport, construct and install. The outer surface of the smoke exhaust pipe is made of a non-metal plate on which tiles can be fixed, thereby being convenient for owners to decorate and good in heat-insulating performance.
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Description

Technical Field

[0001] This invention pertains to residential smoke exhaust pipes, specifically a prefabricated residential smoke exhaust pipe. Background Technology

[0002] For residential smoke exhaust ducts, concrete pipes reinforced with wire mesh are typically used. However, their drawback is their weight, making them inconvenient to manufacture, transport, and install. Metal pipes (CN223242347A) are also used. Because metal pipes are prefabricated monolithic structures, on-site installation requires specialized hoisting equipment. Installation is done step-by-step from the pre-drilled installation holes in the exhaust duct on the top floor of the residential building, making the installation process complex and lacking heat insulation. Summary of the Invention

[0003] The purpose of this invention is to provide a prefabricated smoke exhaust pipe for residential buildings that improves installation efficiency.

[0004] The technical solution adopted to achieve the purpose of this invention is as follows: The prefabricated smoke exhaust pipe for residential buildings provided by the present invention includes a hollow square bracket consisting of four columns and connectors connecting the columns, a metal pipe disposed within the bracket, and a non-metallic plate covering the outside of the bracket. The metal pipe is fixedly connected to the bracket by adhesive, and the non-metallic plate is fixed to the bracket by fasteners or adhesive. The side length of the square bracket is not less than 200 mm.

[0005] The column and connector are made of metal. The column includes two first mounting surfaces that are perpendicular to the metal pipe, two second mounting surfaces that are perpendicular to the non-metallic plate, and two third mounting surfaces that are parallel to the second mounting surfaces and not on the same plane, and are connected to the connector. The connector is connected to the column by fasteners or welding.

[0006] The columns and connectors are made of aluminum alloy profiles, and the metal pipes are square pipes made of galvanized sheet; the non-metallic plates are made of cement fiberboard.

[0007] It also includes pipe fittings, which include fittings that fit the inner wall of the metal pipe and support plates located in the middle of the outer wall of the fittings. The fittings are located on the upper and lower parts of the support plates, forming upper and lower interfaces, respectively.

[0008] It also includes an air inlet component, which includes a tube with a panel and a retaining ring located at the end of the tube and threadedly connected to the tube. Beneficial effects

[0009] This invention allows for the on-site assembly of metal pipes, non-metallic plates, columns, and connectors into the required smoke exhaust pipe, offering advantages such as light weight, convenient transportation, and easy installation. The exterior of the smoke exhaust pipe is made of non-metallic plates that can be tiled, facilitating homeowner decoration and providing good thermal insulation.

[0010] The technical solution of the present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0011] Figure 1 This is the front view of the present invention.

[0012] Figure 2 This is a top view of the present invention.

[0013] Figure 3 This is an installation diagram of the present invention.

[0014] Figure 4 This is a front view of the pipe connector in this invention.

[0015] Figure 5 This is a top view of the pipe connector. Detailed Implementation

[0016] See Figure 1 — Figure 2 The prefabricated smoke exhaust pipe for residential buildings provided by the present invention includes a hollow square bracket consisting of four columns 1 and connectors 5 connecting the columns 1, a metal pipe 4 disposed in the bracket, and a non-metallic plate 3 covering the outside of the bracket. The metal pipe 4 is fixedly connected to the bracket by adhesive, and the non-metallic plate 3 is fixed to the bracket by fastener screws 2. The side length of the bracket is not less than 200 mm.

[0017] In the bracket, the column 1 includes two first mounting surfaces 103 that are perpendicular to the metal tube 4, two second mounting surfaces 102 that are perpendicular to the non-metallic plate 3, and two third mounting surfaces 101 that are parallel to the second mounting surfaces 102 and not on the same plane, and are connected to the connector 5. The connector 5 is connected to the column 1 by screws 2.

[0018] The column 1 and the connector 5 are made of metal, such as aluminum alloy profiles; the non-metallic plate 3 can also be fixed to the bracket by riveting or adhesive, and the connector 5 can also be fixed to the bracket by fasteners, rivets or welding.

[0019] The metal pipe 4 is a square pipe, which can be made of galvanized sheet, which is inexpensive and not easy to rust; the non-metallic plate 3 can be made of 12 / 15mm thick cement fiberboard, which is strong, easy to cut, and can be tiled.

[0020] The metal tube 4 and the non-metal plate 3 can be fixedly connected to the bracket using commercially available high-temperature resistant and flame-retardant sealant.

[0021] The present invention also includes a pipe connector 6, such as Figure 4 — Figure 5 As shown, it includes a pipe fitting 601 that fits into the inner wall of the metal pipe 4, and a support piece 602 located in the middle of the outer wall of the pipe fitting 601. The upper and lower parts of the pipe fitting 601 located on the support piece 602 form upper and lower interfaces 6011 and 6012, respectively.

[0022] The present invention also includes an air inlet component 7, which includes a tube body 702 with a panel 701 and a retaining ring 703 provided at the tail of the tube body 702 and threadedly connected to the tube body 702.

[0023] The installation method of this invention: the column 1, metal pipe 4, and non-metallic plate 3 can all be pre-processed to standard dimensions according to current residential building material specifications; during on-site installation of the smoke exhaust pipe, such as Figure 3 As shown, the columns 1, metal pipes 4, and non-metallic plates 3 can be cut to the required lengths according to the floor height of the residential building. First, the columns 1 are fixed to the four corners of the metal pipes 4 with adhesive. The four columns 1 are assembled into a bracket by several connectors 5. Then, the non-metallic plates 3 are covered and fixed on the columns 1 on the four sides of the bracket with screws 2 to form a smoke exhaust pipe. Next, an air inlet hole is opened at the top of the smoke exhaust pipe and an air inlet component 7 is installed. The air inlet component 7 is fixed by locking the tail of the pipe body 702 with a fixing ring 703 and sealed with high-temperature flame-retardant sealant. Then, a pipe connector 6 is installed at the top of the smoke exhaust pipe. The lower interface 6012 of the pipe connector 6 is inserted into the metal pipe 4 of the smoke exhaust pipe and supported on the smoke exhaust pipe by a support plate 602. Finally, the smoke exhaust pipe of the upper floor is lowered from the reserved opening on the floor slab, so that its metal pipe 4 is fitted onto the upper interface 6011 of the pipe connector 6 at the top of the smoke exhaust pipe of the lower floor and pressed onto the support plate 602. When installing the exhaust pipe, apply high-temperature resistant flame-retardant sealant to the upper and lower interfaces 6011 and 6012 of the pipe connector 6 beforehand to increase the sealing between the pipe connector 6 and the upper and lower exhaust pipes and prevent smoke leakage. Complete the installation of the entire flue according to the above steps.

Claims

1. A prefabricated smoke exhaust pipe for residential buildings, characterized in that: It includes a hollow square bracket consisting of four columns and connectors connecting the columns, a metal tube disposed inside the bracket, and a non-metallic plate covering the outside of the bracket. The metal tube is fixedly connected to the bracket by adhesive, and the non-metallic plate is fixed to the bracket by fasteners or adhesive. The side length of the square bracket is not less than 200 mm.

2. The prefabricated smoke exhaust pipe for residential buildings according to claim 1, characterized in that: The column and connector are made of metal. The column includes two first mounting surfaces that are perpendicular to the metal pipe, two second mounting surfaces that are perpendicular to the non-metallic plate, and two third mounting surfaces that are parallel to the second mounting surfaces and not on the same plane, and are connected to the connector. The connector is connected to the column by fasteners or welding.

3. The prefabricated smoke exhaust pipe for residential buildings according to claim 2, characterized in that: The columns and connectors are made of aluminum alloy profiles, and the metal pipes are square pipes made of galvanized sheet; the non-metallic plates are made of cement fiberboard.

4. The prefabricated smoke exhaust pipe for residential buildings according to any one of claims 1 to 3, characterized in that: It also includes pipe fittings, which include fittings that fit the inner wall of the metal pipe and support plates located in the middle of the outer wall of the fittings. The fittings are located on the upper and lower parts of the support plates, forming upper and lower interfaces, respectively.

5. The prefabricated smoke exhaust pipe for residential buildings according to claim 4, characterized in that: It also includes an air inlet component, which includes a tube with a panel and a retaining ring located at the end of the tube and threadedly connected to the tube.

Citation Information

Patent Citations

  • Ventilation pipeline device of building body

    CN223242347U