First-layer exhaust flue

Abstract

The utility model relates to the technical field of exhaust flues, and discloses a first-layer exhaust flue which comprises an exhaust passage, a bottom plate is arranged at the bottom of the exhaust passage, a buffer layer is arranged at the top of the bottom plate, deformed steel bars are arranged on the exhaust passage in a penetrating manner, a preformed hole is formed in the bottom of the side wall of the exhaust passage, a fireproof check valve is arranged on the preformed hole, and a smoke exhaust pipe is arranged on the fireproof check valve. According to the utility model, the length of the first-layer flue can be reduced, the indoor usable area of the first-layer flue can be increased, oil stains deposited in the flue can be adsorbed in daily life, the use effect of the first-layer exhaust flue is effectively improved, and the building cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust flues, in particular to a first-floor exhaust flue. Background Art

[0002] In residential buildings, flues are pipe products used to remove smoke generated by cooking activities in the kitchen or foul air in the bathroom, and are basic components of the common exhaust pipe system for kitchens and bathrooms. With the increasing number of modern high-rise buildings, the flue system, as a channel for the discharge of waste oil smoke and gas in high-rise buildings, plays a very important role in maintaining the indoor air quality of high-rise buildings. At present, the first-floor flue is set on the ground through a base. For example, the Chinese utility model patent with the authorization announcement number CN216949305U discloses a residential flue, including a stainless steel flue, a first-floor base and a roof hood. A flue duct opening is opened on each floor of the residential building, and the flue duct opening is opened at the intersection of the two main walls of the residential building. The first-floor base is cast by cement on the lowest floor of the residential building. The stainless steel flue is formed by connecting multiple sections of stainless steel pipes prefabricated in a mechanical processing plant from bottom to top in sequence. The multiple sections of the stainless steel pipes are installed in sections from the top of the first-floor base from bottom to top in the reserved flue duct openings on each floor of the residential building.

[0003] There are at least the following problems in the prior art: first, the flue on the first floor is too long, and the base and the flue will occupy a certain activity space on the first floor, which is not beautiful; second, the overly long flue and base on the first floor will increase the construction cost. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model develops a first-floor exhaust flue, which can not only reduce the length of the first-floor flue, but also absorb oil stains deposited in the flue in daily life, effectively improving the use effect of the first-floor exhaust flue and reducing construction costs.

[0005] The technical solution of the utility model to solve the technical problem is: a first-floor exhaust flue, comprising an exhaust duct, a bottom plate is provided at the bottom of the exhaust duct, a buffer layer is provided on the top of the bottom plate, threaded steel is penetrated through the exhaust duct, a reserved hole is provided at the bottom of the side wall of the exhaust duct, a fire check valve is provided on the reserved hole, and a smoke exhaust pipe is provided on the fire check valve.

[0006] As an optimization, the exhaust duct and the base plate are integrally formed, which can be easily prefabricated. Glass fiber is provided in the exhaust duct and the base plate to enhance the strength of the base plate and the exhaust duct.

[0007] As an optimization, the buffer layer is any one of rock wool strips, rock wool boards and glass wool, which can absorb oil stains deposited in the exhaust duct and improve the impact resistance of the bottom plate to construction slag. The thickness of the buffer layer is 40mm to 60mm to avoid blocking the fire check valve.

[0008] As an optimization, two groups of rebars are provided. The distance between the rebars and the side wall of the exhaust duct is 20mm to 40mm, which can prevent the rebars from being stuck in construction slag. One end of the rebar passes through the exhaust duct and is set in the wall at a depth of 50mm to 60mm to ensure the connection strength between the exhaust duct and the wall.

[0009] As an optimization, the distance between the lowest point of the reserved hole and the top of the bottom plate is greater than or equal to 60 mm, so that the buffer layer can fully absorb the oil stains and prevent the oil stains from directly leaking.

[0010] As an optimization, the smoke exhaust pipe is a metal bellows, which has a long service life.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] By setting the bottom plate and the buffer layer, the construction slag generated by the owner during decoration can be received, and the buffer layer can not only buffer the construction slag and prevent the construction slag from penetrating the bottom plate, but also absorb the oil stains deposited in the flue; by setting the threaded steel bar, the connection strength between the exhaust duct and the wall can be enhanced, and the exhaust duct can be suspended; by setting the reserved hole, the construction slag can be easily removed, the fire check valve can be installed, and the buffer layer can be easily replaced; by setting the exhaust pipe, the oil smoke can be discharged into the exhaust duct. The utility model can not only reduce the length of the first-floor flue and increase the usable area of the first floor, but also absorb the oil stains deposited in the flue in daily life, effectively improving the use effect of the exhaust flue on the first floor and reducing the construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a cross-sectional view of an embodiment of the utility model on the first and second floors.

[0014] Figure 2 This is a top view of an embodiment of the utility model on the second floor.

[0015] In the figure: 1. Exhaust duct; 2. Bottom plate; 3. Buffer layer; 4. Threaded steel bar; 5. Reserved hole; 6. Fire check valve; 7. Smoke exhaust pipe; 8. Ceiling; 9. Floor. DETAILED DESCRIPTION

[0016] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0017] Example 1

[0018] Figures 1 to 2 An embodiment of the present utility model is as follows: Figures 1 to 2As shown, a first-floor exhaust duct comprises an exhaust duct 1 and a floor 9. The bottom of the exhaust duct 1 passes through the floor slab 9 and is arranged in the first floor. A bottom plate 2 is provided at the bottom of the exhaust duct 1. A buffer layer 3 is provided on the top of the bottom plate 2. The bottom of the bottom plate 2 is 310 mm away from the floor slab 9, and a reserved height for the installation of a fire check valve 6, a smoke exhaust pipe 7 and a suspended ceiling 8 can be reserved. A threaded steel bar 4 is penetrated through the exhaust duct 1. A reserved hole 5 is provided at the bottom of the side wall of the exhaust duct 1. A fire check valve 6 is provided on the reserved hole 5, and a smoke exhaust pipe 7 is provided on the fire check valve 6.

[0019] By providing a base plate 2 and a buffer layer 3, the construction debris generated during renovation by the owner can be absorbed, and the buffer layer 3 can not only buffer the construction debris and prevent the construction debris from penetrating the base plate 2, but also absorb the oil stains deposited in the flue; by providing threaded steel bars 4, the connection strength between the exhaust duct 1 and the wall can be enhanced, and the exhaust duct 1 can be suspended; by providing a reserved hole 5, the construction debris can be easily removed, the fire check valve 6 can be installed, and the buffer layer 3 can be easily replaced; by providing a smoke exhaust pipe 7, the oil smoke can be discharged into the exhaust duct 1.

[0020] like Figures 1 to 2 As shown, the exhaust duct 1 and the base plate 2 are integrally formed and can be easily prefabricated. Glass fiber is added to the exhaust duct 1 within a height of 500 mm from the bottom to the second floor and to the base plate 2 during prefabrication, which can enhance the strength of the base plate 2 and the exhaust duct 1.

[0021] like Figures 1 to 2 As shown, the buffer layer 3 is any one of rock wool strips, rock wool boards and glass wool, which can absorb the oil stains deposited in the exhaust duct 1 and can also improve the impact resistance of the bottom plate 2 to construction slag. The thickness of the buffer layer 3 is 40 mm. When the buffer layer 3 is a rock wool strip, the width of a single strip is 50 mm, which is convenient for installation and can avoid blocking the fire check valve 6.

[0022] like Figures 1 to 2 As shown, two groups of threaded steel bars 4 are provided, and both groups of threaded steel bars 4 are arranged in the floor 9. The diameter of the threaded steel bars 4 is 14 mm, and the distance between the threaded steel bars 4 and the side wall of the exhaust duct 1 is 30 mm, which can prevent the threaded steel bars 4 from getting stuck in the construction slag. One end of the threaded steel bars 4 passes through the exhaust duct 1 and is arranged in the wall at a depth of 50 mm, and the other end of the threaded steel bars 4 passes through the exhaust duct 1 and is arranged in the floor 9 at a depth of 50 mm, ensuring the connection strength between the exhaust duct 1 and the wall and floor 9. The distance between the threaded steel bars 4 and the bottom plate 2 is 435 mm, which prevents the threaded steel bars 4 from affecting the installation of the buffer layer 3 and the fire check valve 6.

[0023] like Figure 1 As shown, the diameter of the reserved hole 5 is 180 mm, and the distance between the lowest point of the reserved hole 5 and the top of the bottom plate 2 is greater than or equal to 60 mm. The buffer layer 3 can fully absorb the oil stains to prevent the oil stains from leaking directly.

[0024] likeFigure 1 As shown, the exhaust pipe 7 is a metal bellows pipe.

[0025] During decoration, the bottom of the first-floor ceiling 8 can be flush with the bottom plate 2, achieving the effect that the first-floor flue is not exposed. The reserved hole 5, the fire check valve 6, and the exhaust pipe 7 are all arranged above the first-floor ceiling 8, which can increase the usable area of the first-floor interior, save the cost of the first-floor flue, and improve the aesthetic effect; when the construction waste generated by the owners on the second floor and above falls in the exhaust duct 1 during decoration, it will fall on the buffer layer 3. The buffer layer 3 can buffer the construction waste to prevent the construction waste from piercing through the bottom plate 2, and the construction waste can be taken out from the reserved hole 5; in long-term use, the buffer layer 3 can also adsorb the deposited oil stains. When it is found that oil stains overflow from the fire check valve 6, the fire check valve 6 can be disassembled, the old buffer layer 3 can be taken out, and a new buffer layer 3 can be replaced.

[0026] In the present utility model, the description of the orientation or relative position relationship of the structure, such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicates the orientation or relative position relationship based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated structure must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

Claims

1. A first-floor exhaust flue, comprising an exhaust duct (1) and a ceiling (8), wherein a bottom plate (2) is provided at the bottom of the exhaust duct (1), and it is characterized in that: A buffer layer (3) is provided on the top of the bottom plate (2). Threaded steel bars (4) are penetrated through the exhaust duct (1). A reserved hole (5) is provided at the bottom of the side wall of the exhaust duct (1). A fire check valve (6) is provided on the reserved hole (5). A smoke exhaust pipe (7) is provided on the fire check valve (6). The bottom of the ceiling (8) is flush with the bottom plate (2). The reserved hole (5), the fire check valve (6) and the smoke exhaust pipe (7) are all arranged above the ceiling (8).

2. The first-floor exhaust flue according to claim 1, wherein: The exhaust duct (1) and the bottom plate (2) are integrally formed, and fiberglass is provided in both the exhaust duct (1) and the bottom plate (2).

3. The first-floor exhaust flue according to claim 2, characterized in that: The buffer layer (3) is any one of rock wool strips, rock wool boards and glass wool, and the thickness of the buffer layer (3) is 40mm - 60mm.

4. The first-floor exhaust flue according to claim 3, characterized in that: Two groups of threaded steel bars (4) are provided. The distance between the threaded steel bars (4) and the side wall of the exhaust duct (1) is 20mm - 40mm. The inner ends of the threaded steel bars (4) pass through the exhaust duct (1) and are arranged in the wall at a depth of 50mm - 60mm.

5. The first-floor exhaust flue according to claim 4, characterized in that: The distance between the lowest point of the reserved hole (5) and the top of the bottom plate (2) is greater than or equal to 60mm.

6. The first - floor exhaust flue according to any one of claims 1 to 5, characterized in that: The smoke exhaust pipe (7) is a metal bellows.

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