Exhaust passage structure of building

Abstract

The utility model relates to the technical field of exhaust passages, and provides an exhaust passage structure of a building, which comprises a floor slab, a connecting frame, an upper flue and a lower flue, the connecting frame comprises an outer frame and an upper annular plate, and the outer frame is fixedly arranged in the reserved hole; the upper ring plate is fixedly arranged in the outer frame, and a plurality of leaking holes are formed in the upper ring plate; the upper flue is arranged on the upper side of the upper annular plate in an abutting-against mode. The lower flue is arranged on the lower side of the upper annular plate in an abutting-against mode, and the lower flue is communicated with the upper flue through the upper annular plate. According to the utility model, the upper ring plate is arranged in the reserved hole, and the leak hole is formed in the upper ring plate, so that when the upper flue and the lower flue are respectively arranged on the two sides of the upper ring plate, concrete between the upper flue and the outer frame can penetrate through the leak hole to be filled between the lower flue and the outer frame, and the construction efficiency of the exhaust passage is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust ducts, in particular to an exhaust duct structure of a building. Background Art

[0002] The exhaust duct is a tubular passage used to discharge exhaust gas or smoke. In residential buildings, it serves to discharge kitchen smoke or bathroom exhaust gas. In order to facilitate the manufacture, transportation and installation of the exhaust duct, the exhaust duct is usually set as a multi-section assembled structure.

[0003] The utility model with patent publication number CN219411653U discloses an exhaust duct supporting connection structure, including a fine stone concrete filling layer arranged between the lower exhaust pipe and the reserved hole, a sealed cast-in-place structure arranged between the upper exhaust pipe and the reserved hole, a supporting cast-in-place structure arranged between the upper exhaust pipe and the lower exhaust pipe, and four L-shaped steels arranged on the top surface of the fine stone concrete filling layer and arranged along the edge of the reserved hole, the horizontal plate of the L-shaped steel is fixed in the supporting cast-in-place structure, the vertical plate of the L-shaped steel is fixed on the floor slab, and the top surface of the fine stone concrete filling layer is flush with the top surface of the lower exhaust pipe. The utility model improves the connection strength between the upper exhaust pipe and the lower exhaust pipe, ensures the sealing of the joint connection between the upper exhaust pipe and the lower exhaust pipe, thereby realizing reliable connection and sealing between the exhaust duct and the floor slab.

[0004] In the above technical solution, in order to install the upper exhaust pipe and the lower exhaust pipe in the reserved hole, a filling layer and a sealed cast-in-place structure are respectively arranged between the reserved hole and the lower exhaust pipe and the upper exhaust pipe. However, this exhaust duct structure requires pouring the filling layer first, and then installing the supporting cast-in-place structure, L-shaped steel and the sealed cast-in-place structure after it solidifies, which makes the installation operation of the exhaust duct more cumbersome and reduces the construction efficiency of the exhaust duct. Utility Model Content

[0005] In view of this, the utility model proposes an exhaust duct structure for a building, which can achieve rapid installation of the exhaust duct and improve the construction efficiency of the exhaust duct.

[0006] The technical solution of the utility model is implemented as follows: The utility model provides an exhaust duct structure of a building, including a floor, a connecting frame, an upper flue and a lower flue, wherein:

[0007] The floor slab is provided with a reserved hole;

[0008] The connecting frame comprises an outer frame and an upper ring plate, wherein the outer frame is fixedly arranged in the reserved hole; the upper ring plate is fixedly arranged in the outer frame, and a plurality of leakage holes are opened in the upper ring plate;

[0009] The upper flue is arranged against the upper side of the upper ring plate;

[0010] The lower flue is disposed against the lower side of the upper ring plate, and the lower flue is communicated with the upper flue through the upper ring plate, and the lower flue and the outer frame are communicated with each other through the leakage hole.

[0011] On the basis of the above technical solution, preferably, the connecting frame further comprises a lower ring plate, which is fixedly arranged on the outer frame and spaced below the upper ring plate, and the lower ring plate is located on the outer side of the lower flue.

[0012] More preferably, the connecting frame further comprises an inner cylinder, which is fixedly disposed in the upper ring plate and abuts against inner walls of the upper flue and the lower flue, respectively.

[0013] More preferably, the outer frame includes an outer cylinder and a flange plate, wherein:

[0014] The outer cylinder is fixedly arranged on the outer side of the upper ring plate and fixedly arranged in the reserved hole, the outer cylinder is spaced apart from the outer walls of the upper flue and the lower flue, and the lower ring plate is fixedly arranged on the bottom side of the outer cylinder;

[0015] The flange plate is fixedly arranged on the top end of the outer side of the outer tube and is fixedly connected to the top side of the floor slab.

[0016] More preferably, the outer frame further comprises a straight-edge plate, and the straight-edge plate is fixedly arranged on the top end of the outer tube for being fixedly connected to the wall.

[0017] More preferably, the upper ring plate is located in the middle of the outer cylinder and the inner cylinder.

[0018] On the basis of the above technical solution, preferably, the upper flue comprises a first flue and a second flue, wherein:

[0019] The outer side of the bottom end of the first flue is in a cone shape;

[0020] The inner side of the top end of the second flue is in a cone shape, and the second flue is connected to the first flue in a socket-and-spigot manner.

[0021] More preferably, the upper flue further comprises a sealing cylinder, and the sealing cylinders are respectively fixedly disposed in the first flue and the second flue, and the two sealing cylinders are sealed against each other.

[0022] More preferably, one end of the first flue close to the second flue is located below one end of one of the sealing cylinders close to the other sealing cylinder.

[0023] More preferably, the upper flue further includes a baffle and a guide plate, wherein:

[0024] A smoke outlet is provided on the side wall of the first smoke duct;

[0025] The partition is fixedly arranged in the first flue and parallel to its axial direction, and the partition and the first flue are enclosed to form two branch flues;

[0026] The guide plate is rotatably arranged in the first flue and selectively abuts against the inner wall of the first flue and the partition, wherein when the guide plate abuts against the inner wall of the first flue, the smoke outlet is blocked; when the guide plate abuts against the partition, one end of one of the branch channels is blocked, and the smoke outlet is connected to the branch channel with one end blocked.

[0027] The exhaust duct structure of a building of the utility model has the following beneficial effects compared with the prior art:

[0028] (1) By setting an upper ring plate in the reserved hole and opening a leakage hole in the upper ring plate, when the upper flue and the lower flue are respectively installed on both sides of the upper ring plate, the concrete between the upper flue and the outer frame can pass through the leakage hole and be filled between the lower flue and the outer frame, thereby improving the construction efficiency of the exhaust duct;

[0029] (2) By providing the inner tube and the sealing tube, not only can the sealing performance of the exhaust duct be improved to avoid problems such as smoke leakage and air leakage, but also the inner wall of the exhaust duct can be made smoother, making it difficult for impurities to adhere to the inner wall of the exhaust duct;

[0030] (3) By providing flanged plates and straight edge plates, the connecting frame can be fixed on the floor or the wall, thereby improving the adaptability of the connecting frame to the installation environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a partial cross-sectional view of an exhaust duct structure of a building of the utility model;

[0033] Figure 2 A three-dimensional diagram of a connecting frame in an exhaust duct structure of a building according to the utility model;

[0034] Figure 3It is a three-dimensional diagram of the lower ring plate in the exhaust duct structure of a building of the utility model;

[0035] Figure 4 It is a cross-sectional view of a sealing cylinder in an exhaust duct structure of a building of the utility model;

[0036] Figure 5 It is a cross-sectional view of the first flue when the guide plate of the exhaust duct structure of a building of the utility model abuts against the inner wall of the first flue;

[0037] Figure 6 It is a cross-sectional view of the first flue when the guide plate of the exhaust duct structure of a building of the utility model abuts against the partition plate.

[0038] Among them: 1. Floor; 101. Reserved opening; 2. Connecting frame; 21. Outer frame; 211. Outer tube; 212. Flanged plate; 213. Straight edge plate; 22. Upper ring plate; 23. Lower ring plate; 24. Inner tube; 201. Leakage hole; 3. Upper flue; 31. First flue; 32. Second flue; 33. Sealing tube; 34. Partition; 35. Guide plate; 301. Smoke outlet; 302. Branch duct; 4. Lower flue. DETAILED DESCRIPTION

[0039] The following will be combined with the specific implementation of the utility model to clearly and completely describe the technical solution in the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] like Figure 1-6 As shown, an exhaust duct structure of a building of the utility model comprises a floor 1, a connecting frame 2, an upper flue 3 and a lower flue 4.

[0041] The floor 1 is a gap between two adjacent floors in the building. A reserved opening 101 is provided on the floor 1. The connecting ends of the upper flue 3 and the lower flue 4 are installed in the reserved opening 101 and filled and fixed by pouring concrete.

[0042] The connecting frame 2 is used to connect the upper flue 3 and the lower flue 4. The connecting frame 2 includes an outer frame 21 and an upper ring plate 22, wherein the outer frame 21 is fixedly arranged in the reserved hole 101; the upper ring plate 22 is fixedly arranged in the outer frame 21, and a plurality of leakage holes 201 are opened in the upper ring plate 22; Figure 1As shown, the upper flue 3 is set against the upper side of the upper ring plate 22; the lower flue 4 is set against the lower side of the upper ring plate 22, and the lower flue 4 is connected to the upper flue 3 through the upper ring plate 22, and the lower flue 4 and the outer frame 21 are connected as well as the upper flue 3 and the outer frame 21 through the leakage hole 201. When the connecting frame 2, the upper flue 3 and the lower flue 4 are arranged in the reserved hole 101 and concrete is injected between the upper flue 3 and the outer frame 21, not only the gap between the upper flue 3 and the outer frame 21 can be filled, but also the concrete can flow into the gap between the lower flue 4 and the outer frame 21 along the leakage hole 201 to fill the gap, thereby realizing the rapid fixation and sealing between the connecting frame 2, the upper flue 3 and the lower flue 4, and improving the construction efficiency of the exhaust duct.

[0043] The connecting frame 2 also includes a lower ring plate 23 and an inner cylinder 24. Figure 1 and Figure 3 As shown, the lower ring plate 23 is fixedly set on the outer frame 21 and is spaced below the upper ring plate 22, and the lower ring plate 23 is located on the outside of the lower flue 4 to support the concrete when injecting concrete so that the concrete remains between the lower flue 4 and the outer frame 21.

[0044] The inner tube 24 is fixedly arranged in the upper ring plate 22 and abuts against the inner walls of the upper flue 3 and the lower flue 4 respectively. Figure 1 As shown, the inner tube 24 can not only seal the connection gap between the upper flue 3 and the lower flue 4, improve the sealing performance of the exhaust duct and prevent smoke leakage, but also make the inner walls of the upper flue 3 and the lower flue 4 smoother, making it difficult for impurities to adhere to the inner wall of the exhaust duct.

[0045] In order to improve the uniformity of fixing the upper flue 3 and the lower flue 4 , it is preferred that the upper ring plate 22 is located in the middle of the outer cylinder 211 and the inner cylinder 24 .

[0046] like Figure 2 As shown, the outer frame 21 includes an outer tube 211, a flange plate 212 and a straight edge plate 213, wherein the outer tube 211 is fixedly arranged on the outer side of the upper ring plate 22 and fixedly arranged inside the reserved opening 101, the outer tube 211 is spaced apart from the outer walls of the upper flue 3 and the lower flue 4, and the lower ring plate 23 is fixedly arranged on the bottom side of the outer tube 211; the flange plate 212 is fixedly arranged on the top end of the outer side of the outer tube 211 and fixedly connected to the top side of the floor 1, thereby improving the fixing firmness of the outer frame 21 and the floor 1.

[0047] The reserved opening 101 is usually adjacent to the wall of the building. The plane of the flanged plate 212 is parallel to the plane of the floor 1 and cannot be connected to the wall beside the reserved opening 101. The straight edge plate 213 can solve this problem. Figure 2 As shown, the straight edge plate 213 is fixedly arranged on the top end of the outer tube 211 for being fixedly connected to the wall.

[0048] The upper flue 3 and the lower flue 4 can also be set as a multi-section assembled structure, taking the upper flue 3 as an example. Figure 4 As shown, the upper flue 3 includes a first flue 31, a second flue 32 and a sealing cylinder 33, wherein the outer side of the bottom end of the first flue 31 is conical; the inner side of the top end of the second flue 32 is conical, and the second flue 32 is connected to the first flue 31 by a socket-shaped manner. This conical socket-shaped structure can prevent the first flue 31 or the second flue 32 from deviating in its radial direction, thereby improving the connection stability between the two; of course, the second flue 32 and the first flue 31 are preferably filled with concrete for reinforcement.

[0049] The sealing cylinders 33 are fixedly arranged in the first flue 31 and the second flue 32 respectively, and the two sealing cylinders 33 are sealed against each other. The sealing cylinder 33 and the inner cylinder 24 are similar, which play a role in improving the connection sealing of the first flue 31 and the second flue 32 and improving the smoothness of the inner walls of the first flue 31 and the second flue 32; it is preferred that the end of the first flue 31 close to the second flue 32 is located below the end of one of the sealing cylinders 33 close to the other sealing cylinder 33, that is, the connection position of the first flue 31 and the second flue 32 is staggered with the connection position of the two sealing cylinders 33, so that the sealing of the upper flue 3 is improved.

[0050] like Figure 5 and Figure 6 As shown, the upper flue 3 also includes a partition 34 and a guide plate 35, wherein a smoke port 301 is opened on the side wall of the first flue 31, and the smoke port 301 is connected to a pipe such as a range hood inside the residence, and is used to discharge the smoke in the household into the exhaust pipe. In the figure, the smoke in the upper first flue 31 flows from bottom to top; the partition 34 is fixedly arranged in the first flue 31 and is parallel to its axial direction, and the partition 34 and the first flue 31 are enclosed to form two branch channels 302, and both ends of the two branch channels 302 are connected to both ends of the first flue 31; the guide plate 35 is rotatably arranged in the first flue 31, and selectively abuts against the inner wall of the first flue 31 and the partition 34, as shown in FIG. Figure 5 As shown, when the guide plate 35 abuts against the inner wall of the first flue 31, the guide plate 35 blocks the smoke outlet 301. At this time, the resident has no need to discharge smoke into the exhaust duct, so that the maximum ventilation cross-section is maintained between the two ends of the first flue 31, which is conducive to the rapid passage of smoke in the exhaust duct; Figure 6 As shown, when the guide plate 35 abuts against the partition plate 34, the guide plate 35 blocks one end of one of the branch channels 302, and connects the smoke outlet 301 with the branch channel 302 with one end blocked. At this time, the residents need to discharge the smoke into the exhaust duct, which can not only isolate the smoke in the house from the smoke in the first flue 31 to avoid the problem of smoke backflow, but also ensure the rapid discharge of the smoke in the house; specifically, the guide plate 35 is preferably an arc-shaped structure.

[0051] The installation method of the exhaust duct structure of a building of the utility model is as follows:

[0052] First, use the flange plate 212 and / or the straight edge plate 213 to fix the connecting frame 2 in the reserved hole 101, and then install the upper flue 3 and the lower flue 4 on the upper and lower sides of the upper ring plate 22 respectively, and make the upper flue 3 and the lower flue 4 located between the outer tube 211 and the inner tube 24, and finally inject concrete between the upper flue 3 and the outer tube 211 to fill the gap between the upper flue 3 and the outer tube 211, and fill the gap between the lower flue 4 and the outer tube 211 through the leakage hole 201.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An exhaust duct structure of a building, characterized in that: It comprises a floor slab (1), a connecting frame (2), an upper flue (3) and a lower flue (4), wherein: The floor slab (1) is provided with a reserved hole (101); The connecting frame (2) comprises an outer frame (21) and an upper ring plate (22), wherein the outer frame (21) is fixedly arranged in the reserved hole (101); the upper ring plate (22) is fixedly arranged in the outer frame (21), and a plurality of leakage holes (201) are opened in the upper ring plate (22); The upper flue (3) is arranged in contact with the upper side of the upper ring plate (22); The lower flue (4) is arranged in contact with the lower side of the upper ring plate (22), and the interior of the lower flue (4) is connected to the interior of the upper flue (3) through the upper ring plate (22), and the lower flue (4) and the outer frame (21) are connected to the upper flue (3) and the outer frame (21) through the leakage hole (201).

2. The exhaust duct structure of a building as claimed in claim 1, characterized in that: The connecting frame (2) further comprises a lower ring plate (23), wherein the lower ring plate (23) is fixedly arranged on the outer frame (21) and is arranged below the upper ring plate (22) at intervals, and the lower ring plate (23) is located outside the lower flue (4).

3. The exhaust duct structure of a building as claimed in claim 2, characterized in that: The connecting frame (2) also includes an inner cylinder (24), which is fixedly arranged in the upper ring plate (22) and abuts against the inner walls of the upper flue (3) and the lower flue (4), respectively.

4. The exhaust duct structure of a building as claimed in claim 3, characterized in that: The outer frame (21) comprises an outer cylinder (211) and a flange plate (212), wherein: The outer cylinder (211) is fixedly arranged on the outside of the upper ring plate (22) and fixedly arranged in the reserved hole (101); the outer cylinder (211) is spaced apart from the outer walls of the upper flue (3) and the lower flue (4); and the lower ring plate (23) is fixedly arranged on the bottom side of the outer cylinder (211); The flange plate (212) is fixedly arranged at the top end of the outer side of the outer tube (211), and is fixedly connected to the top side of the floor slab (1).

5. The exhaust duct structure of a building as claimed in claim 4, characterized in that: The outer frame (21) further comprises a straight-side plate (213), wherein the straight-side plate (213) is fixedly arranged on the top end of the outer cylinder (211) and is used for being fixedly connected to a wall.

6. The exhaust duct structure of a building as claimed in claim 5, characterized in that: The upper ring plate (22) is located in the middle of the outer cylinder (211) and the inner cylinder (24).

7. The exhaust duct structure of a building as claimed in claim 1, characterized in that: The upper flue (3) comprises a first flue (31) and a second flue (32), wherein: The outer side of the bottom end of the first flue (31) is in a cone shape; The inner side of the top end of the second flue (32) is in a cone shape, and the second flue (32) is connected to the first flue (31) by means of a socket joint.

8. The exhaust duct structure of a building as claimed in claim 7, characterized in that: The upper flue (3) further comprises a sealing cylinder (33), wherein the sealing cylinder (33) is fixedly arranged in the first flue (31) and the second flue (32), respectively, and the two sealing cylinders (33) are sealed against each other.

9. The exhaust duct structure of a building as claimed in claim 8, characterized in that: One end of the first flue (31) close to the second flue (32) is located below one end of one of the sealing cylinders (33) close to the other sealing cylinder (33).

10. The exhaust duct structure of a building as claimed in claim 7, characterized in that: The upper flue (3) further comprises a partition (34) and a guide plate (35), wherein: A smoke outlet (301) is provided on the side wall of the first smoke duct (31); The partition plate (34) is fixedly arranged in the first flue (31) and parallel to its axial direction, and the partition plate (34) and the first flue (31) enclose two branch flues (302); The guide plate (35) is rotatably arranged in the first flue (31) and selectively abuts against the inner wall of the first flue (31) and the partition (34), wherein when the guide plate (35) abuts against the inner wall of the first flue (31), the smoke outlet (301) is blocked; when the guide plate (35) abuts against the partition (34), one end of one of the branch channels (302) is blocked, and the smoke outlet (301) is connected to the branch channel (302) with one end blocked.

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