First floor non-landing exhaust pipe

By designing a non-ground-level exhaust pipe on the first floor, the problems of space occupation and increased costs of the flue were solved, achieving space saving and improved construction efficiency, and providing protection and fireproof functions.

CN223991550UActive Publication Date: 2026-03-13QINGDAO CHINA RAILWAY WEST COAST INVESTMENT DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-07
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

In existing technologies, the first-floor flue is too long, which occupies the first-floor space, is unsightly, and increases construction costs.

Method used

Design a first-floor non-ground-level exhaust pipe, including a second-floor slab, an exhaust duct body, a first exhaust pipe and a second exhaust pipe, equipped with anti-debris components, a fireproof check valve and an oil drain pipe, and connected to the floor slab through columns to achieve stable installation and protection of the exhaust pipe.

Benefits of technology

It saves space on the first floor, reduces construction procedures, improves the performance of the exhaust duct, prevents construction debris from damaging the exhaust pipe, and has fireproof and backflow prevention functions.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223991550U_ABST
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Abstract

The utility model relates to the technical field of exhaust flues, and discloses a first floor non-landing exhaust pipe which comprises a second floor, an exhaust duct body is arranged at the top of the second floor, a first exhaust pipe is arranged on the second floor in a penetrating mode, a second exhaust pipe is arranged at the bottom of the first exhaust pipe, and the top of the first exhaust pipe is arranged in the exhaust duct body. The first exhaust pipe is provided with a slag building prevention piece. According to the utility model, the space of the first floor is saved without landing on the ground, the exhaust pipe of the first floor can be prevented from being damaged by building slag, and the use effect of the first floor exhaust passage is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of exhaust flue technology, and in particular to a non-ground-level exhaust pipe for the first floor. Background Technology

[0002] In residential buildings, flues are pipe systems used to remove fumes generated during kitchen cooking or foul air from bathrooms. They are a fundamental component of the shared exhaust system for kitchens and bathrooms. With the increasing number of modern high-rise buildings, flue systems, as channels for the emission of waste oil fumes and gases, play a crucial role in maintaining indoor air quality in high-rise buildings.

[0003] Currently, the first-floor flue is set on the ground via a base. For example, Chinese utility model patent CN216949305U discloses a residential flue, including a stainless steel flue, a first-floor base, and a rooftop vent. Each floor of the residential building has a flue duct opening, which is located at the intersection of two main walls of the building. The first-floor base is formed by concrete pouring on the bottom floor of the building. The stainless steel flue is composed of multiple sections of stainless steel pipes prefabricated in a machining plant, connected sequentially from bottom to top. These multiple sections of stainless steel pipes are installed from the top of the first-floor base into the pre-reserved flue duct openings on each floor of the residential building.

[0004] The existing technology has at least the following problems: First, the flue on the first floor is too long, and the base and flue will occupy a certain amount of activity space on the first floor and are not aesthetically pleasing; second, the excessively long flue and base on the first floor will increase the construction cost. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by developing a first-floor exhaust pipe that does not touch the ground. This invention not only saves space on the first floor by keeping it off the ground, but also prevents construction debris from damaging the exhaust pipe on the first floor, effectively improving the usability of the first-floor exhaust duct.

[0006] The technical solution of this utility model to solve the technical problem is as follows: a first-floor non-ground exhaust pipe, including a second floor slab, an exhaust duct body is provided at the top of the second floor slab, a first exhaust pipe is provided through the second floor slab, a second exhaust pipe is provided at the bottom of the first exhaust pipe, the top of the first exhaust pipe is located inside the exhaust duct body, and an anti-slag component is provided on the first exhaust pipe.

[0007] As an optimization, the bottom of the first exhaust pipe is equipped with an annular base plate. This provides a flat mounting platform for easy installation of the second exhaust pipe.

[0008] As an optimization, the anti-construction debris component is a crash barrier, which is installed inside the first exhaust pipe, with its bottom connected to the annular base plate. When the building height does not exceed twelve stories, the crash barrier can effectively catch falling construction debris, is easy to install, and has low production costs.

[0009] As an optimization, the anti-debris component is a conical cap, which is installed on top of the first exhaust pipe via several sets of columns. When the building height exceeds twelve stories, the conical cap can deflect vertically falling construction debris from the exhaust duct body, preventing high-rise construction debris from damaging the first exhaust pipe and puncturing the second exhaust pipe; the columns can support the conical cap.

[0010] As an optimization, the column is connected to the side wall of the first exhaust pipe, the bottom of the column is set inside the second-floor slab, and the top of the column is connected to the edge of the conical cap. This can improve the connection strength between the first exhaust pipe and the second-floor slab and enhance the impact resistance of the conical cap.

[0011] As an optimization, the bottom of the column is connected to the top of the first exhaust pipe, and the top of the column is connected to the edge of the conical cap. This facilitates welding and saves materials.

[0012] As an optimization, a fireproof check valve is installed at the connection between the first and second exhaust pipes, with its top connected to the annular base plate. By installing the fireproof check valve, it can be installed in conjunction with the annular base plate, ensuring good sealing between the two, providing fire resistance, and guiding smoke upwards to prevent backflow.

[0013] As an optimization, an oil drain pipe is also installed through the second floor slab, with the top height of the oil drain pipe being less than the top height of the first exhaust pipe. By installing the oil drain pipe, oil stains accumulated in the exhaust duct body can be discharged, and oil stains can be prevented from entering the first exhaust pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By designing the exhaust duct body, fumes from all floors can be uniformly discharged. The first exhaust pipe directs fumes from the first floor into the exhaust duct body, eliminating the need for construction of the exhaust duct body on the first floor. The second exhaust pipe allows for easy connection to the first-floor range hood. Anti-construction debris prevents falling debris from the upper floors from damaging the first exhaust pipe and puncturing the second exhaust pipe. This invention saves space on the first floor by eliminating the need for ground-level installation, reduces the steps required for installing the original concrete exhaust duct on the first floor, saves construction time, and prevents construction debris from damaging the exhaust pipes on the first floor, effectively improving the usability of the first-floor exhaust duct. Attached Figure Description

[0016] Figure 1 This is a top view of one embodiment of the present invention.

[0017] Figure 2 for Figure 1 A cross-sectional view along the AA direction.

[0018] Figure 3 for Figure 1 A cross-sectional view along the BB direction.

[0019] Figure 4 This is a schematic diagram of the first exhaust pipe, the anti-slag component, and the annular base plate in another embodiment of the present invention.

[0020] In the diagram: 1. Second floor slab; 2. Exhaust duct body; 3. First exhaust pipe; 4. Second exhaust pipe; 5. Anti-debris component; 6. Column; 7. Annular base plate; 8. Fireproof check valve; 9. Oil drain pipe. Detailed Implementation

[0021] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0022] Example 1

[0023] Figures 1 to 3 As one embodiment of this utility model, such as Figures 1 to 3 As shown, a first-floor non-ground exhaust pipe includes a second-floor slab 1. An exhaust duct body 2 is provided at the top of the second-floor slab 1. A first exhaust pipe 3 is provided through the second-floor slab 1. A second exhaust pipe 4 is provided at the bottom of the first exhaust pipe 3. The first exhaust pipe 3 is a stainless steel pipe with a wall thickness of 2mm. The second exhaust pipe 4 is a metal corrugated pipe used to connect to the first-floor range hood. The top of the first exhaust pipe 3 is located inside the exhaust duct body 2. The top of the first exhaust pipe 3 is higher than the second-floor slab 1. The first exhaust pipe 3 is provided with a debris-proof component 5.

[0024] By setting up the exhaust duct body 2, the smoke from all floors can be discharged uniformly; by setting up the first exhaust pipe 3, the smoke from the first floor can be introduced into the exhaust duct body 2; by setting up the second exhaust pipe 4, it is easy to connect to the range hood on the first floor; by setting up the anti-construction debris component 5, it is prevented from falling construction debris from the upper floors and damaging the first exhaust pipe 3, and prevented from puncturing or damaging the second exhaust pipe 4.

[0025] like Figure 2 As shown, the bottom of the first exhaust pipe 3 is provided with an annular base plate 7, which can provide a flat installation platform for easy installation of the second exhaust pipe.

[0026] like Figures 1 to 3 As shown, the anti-construction debris component 5 is a conical cap, which is installed inside the exhaust duct body 2. The anti-construction debris component 5 is mounted on top of the first exhaust pipe 3 via several sets of columns 6, and a gap is provided between the anti-construction debris component 5 and the first exhaust pipe 3. When the building height exceeds twelve stories, the conical cap can deflect vertically falling construction debris inside the exhaust duct body 2, preventing high-rise construction debris from damaging the first exhaust pipe 3 and puncturing the second exhaust pipe 4; the columns 6 can support the conical cap.

[0027] like Figures 1 to 3 As shown, the column 6 is connected to the side wall of the first exhaust pipe 3, the bottom of the column 6 is set inside the second floor slab 1, and the top of the column 6 is connected to the edge of the conical cap. This can improve the connection strength between the first exhaust pipe 3 and the second floor slab 1, and improve the impact resistance of the anti-slag component 5.

[0028] like Figure 2 and Figure 3 As shown, a fireproof check valve 8 is installed at the connection between the first exhaust pipe 3 and the second exhaust pipe 4. The top of the fireproof check valve 8 is connected to the annular base plate 7. By installing the fireproof check valve 8, it has a fireproof function and can guide smoke upward to prevent backflow of smoke.

[0029] like Figure 1 and Figure 3 As shown, an oil drain pipe 9 is also installed through the second-floor slab 1. The top height of the oil drain pipe 9 is less than the top height of the first exhaust pipe 3. By installing the oil drain pipe 9, the oil stains accumulated in the exhaust duct body 2 can be discharged, and the oil stains can be prevented from entering the first exhaust pipe 3.

[0030] Example 2

[0031] The difference between this embodiment and embodiment 1 is that the bottom of the column 6 is connected to the top of the first exhaust pipe 3, and the top of the column 6 is connected to the edge of the anti-slag component 5. This allows for easy welding during prefabrication.

[0032] Example 3

[0033] The difference between this embodiment and embodiment 1 is that, as Figure 4 As shown, the anti-construction debris component 5 is a crash barrier, which is installed inside the first exhaust pipe 3, and its bottom is connected to the annular base plate 7. When the building height does not exceed twelve stories, the crash barrier can effectively catch construction debris falling from high-rise buildings, and it is easy to install with low production costs.

[0034] During construction, the top of the first exhaust pipe 3 is higher than the second floor slab 1, and the annular base plate 7 is installed at the bottom of the second floor slab 1. The oil drain pipe 9 is installed on the side of the first exhaust pipe 3 away from the corner of the wall to facilitate oil unloading later. It is also ensured that the top of the oil drain pipe 9 is lower than the top of the first exhaust pipe 3 to prevent oil from leaking from the first exhaust pipe 3. When the construction debris generated by the owners of the second floor and above falls into the exhaust duct body 2, it will fall onto the anti-construction debris component 5. The anti-construction debris component 5 can buffer the construction debris. When the building height exceeds twelve stories, the anti-construction debris component 5 is selected with a conical cap, which can deflect the vertically falling construction debris in the exhaust duct body 2 to prevent the construction debris from falling from the high-rise building and damaging the first exhaust pipe 3 and puncturing the second exhaust pipe 4. When the building height does not exceed twelve stories, the anti-construction debris component 5 is selected with an anti-collision net, which can effectively receive the construction debris falling from the high-rise building and is easy to install with low production cost. During construction, in order to further enhance the anti-construction debris capability, the anti-construction debris component 5 can also be selected with both a conical cap and an anti-collision net. This utility model not only saves space on the first floor by eliminating the need for the first floor to be on the ground, but also reduces the installation process of the original cement exhaust duct on the first floor, saving construction time. Furthermore, it prevents construction debris from damaging the exhaust pipe on the first floor, effectively improving the performance of the first floor exhaust duct.

[0035] The descriptions of the orientation or relative positional relationships of the structure in this utility model, such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer", are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A ground-floor non-ground-level exhaust pipe, comprising a second-floor slab (1), wherein an exhaust duct body (2) is provided on the top of the second-floor slab (1), characterized in that: The first exhaust pipe (3) is provided through the two-story floor (1), the bottom of the first exhaust pipe (3) is provided with the second exhaust pipe (4), the top of the first exhaust pipe (3) is arranged in the inside of the exhaust passage body (2), and the first exhaust pipe (3) is provided with the anti-construction slag part (5).

2. The first stage ungrounded tailpipe of claim 1, wherein: The bottom of the first exhaust pipe (3) is provided with the annular bottom plate (7), and the annular bottom plate (7) is connected with the two-story floor (1).

3. The first stage ungrounded tailpipe of claim 2, wherein: The anti-construction slag part (5) is a crash net, the crash net is arranged on the inner side of the first exhaust pipe (3), and the bottom of the crash net is connected with the annular bottom plate (7).

4. The first stage ungrounded tailpipe of claim 2, wherein: The anti-construction slag part (5) is a conical cap, and the anti-construction slag part (5) is arranged on the top of the first exhaust pipe (3) through a plurality of groups of stand columns (6).

5. The first stage ungrounded tailpipe of claim 4, wherein: The stand column (6) is connected with the side wall of the first exhaust pipe (3), the bottom of the stand column (6) is arranged in the two-story floor (1), and the top of the stand column (6) is connected with the edge of the conical cap.

6. The first stage ungrounded tailpipe of claim 4 wherein: The bottom of the stand column (6) is connected with the top of the first exhaust pipe (3), and the top of the stand column (6) is connected with the edge of the conical cap.

7. The first stage ungrounded exhaust pipe according to claim 3 or 5 or 6, characterized in that: The connection part of the first exhaust pipe (3) and the second exhaust pipe (4) is provided with the fireproof check valve (8), and the top of the fireproof check valve (8) is connected with the annular bottom plate (7).

8. The first stage ungrounded tailpipe of claim 7, wherein: The two-story floor (1) is also provided with the oil drain pipe (9) through, and the top of the oil drain pipe (9) is lower than the top of the first exhaust pipe (3).

Citation Information

Patent Citations

  • Stainless steel flue and residence flue using same

    CN216949305U