Novel smoke and odor mixing prevention exhaust flue

Abstract

The utility model relates to a novel smoke and odor mixing prevention exhaust flue. According to the technical scheme, an air inlet hole is formed in the upper side of an upper flue, an upper wind scooper is installed on the upper side of an inner cavity of the upper flue, and a lower wind scooper is installed on the lower side of the inner cavity of the upper flue; a second air inlet hole is formed in the upper side of the lower flue, a second upper wind scooper is mounted on the upper side of an inner cavity of the upper side of the lower flue, and a second lower wind scooper is mounted on the lower side of the inner cavity of the lower flue; the lower end of the upper flue is connected with the upper end of the lower flue through a quick connecting piece, and the lower wind scooper of the upper flue is in contact with the second upper wind scooper of the lower flue to form a lengthened wind scooper. The air guide cover has the beneficial effects that on one hand, a plurality of flues can be quickly mounted by adopting the quick connecting pieces, and on the other hand, the lower air guide cover is arranged at the lower part of the upper flue of the upper floor and is connected with the upper air guide cover mounted on the lower flue of the lower floor, so that the air guide cover is lengthened; and the problem that smoke and odor are mixed due to the fact that the length of an original wind scooper is short is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust flues, in particular to a novel exhaust flue that prevents smoke and odor from flowing through. Background Art

[0002] At present, there are more and more high-rise residential buildings. There is a kitchen on each floor of the house. The kitchen is generally equipped with an exhaust flue and a range hood is installed in the kitchen. The fumes from each household's kitchen are sent to the exhaust flue through the flue exhaust valve and then discharged from the top of the building. The existing exhaust flue is generally an assembled structure, and sections of the exhaust flue are prefabricated in the factory. In addition, during the construction of high-rise residential buildings, exhaust holes are reserved on the kitchen floor. When workers are working, they will install the prefabricated exhaust flues in the reserved exhaust holes one by one on each floor.

[0003] The Chinese patent application number applied by our company on March 6, 2024 is 2024204313269, and the patent name is "Anti-smoke and odor cross-contamination smoke exhaust air duct system". A set of prefabricated flues are installed between every two floor slabs. The upper part of the prefabricated flue main body of the prefabricated flue is provided with a flue inlet hole, and an air duct is connected to the inner side of the flue inlet hole; the air duct main board of the air duct is provided with air duct side panels on both sides, and the lower part of the air duct transition plate is provided with an air duct lower connecting plate. Since the lower end of the air duct is a closed structure, this patent prevents oil smoke from entering the upstairs room along the flue inlet hole upstairs and avoiding the occurrence of cross-contamination; in addition, since the air duct is fixed to the prefabricated flue by a connecting bolt, it avoids the situation where the air duct falls off due to aging of the structural adhesive after long-term use, and also avoids the problem that the air ducts on multiple floors downstairs are all smashed and fallen off due to the falling of one air duct. However, there is a problem: since the lower end of the air guide hood is located on the lower side of the flue inlet, the upper end will not exceed the height of the flue, which leads to the problem that the height of the air guide hood is only a certain distance higher than the flue inlet. As a result, the high-pressure flue gas in the exhaust flue will flow back along the upper part of the air guide hood, causing smoke and odor problems. Utility Model Content

[0004] The purpose of the utility model is to provide a new type of exhaust flue to prevent smoke and odor from crossing over in view of the above-mentioned defects in the prior art. A lower air guide hood is provided at the lower part of the upper flue on the upper floor and connected to the upper air guide hood installed in the lower flue on the next floor, thereby lengthening the air guide hood and avoiding the problem of smoke and odor crossing over caused by the short length of the original air guide hood. Quick connectors can be used to achieve rapid installation of multiple flues.

[0005] The utility model discloses a novel exhaust flue to prevent smoke and odor from flowing through, and the technical scheme thereof is as follows: comprising an upper flue (1), an upper air guide cover (2), an air inlet hole (4), a lower air guide cover (5), a quick connector (6), and a lower flue (7), wherein the air inlet hole (4) is installed on the upper side of the upper flue (1), the upper air guide cover (2) is installed on the upper side of the inner cavity of the upper flue (1), and the lower air guide cover (5) is installed on the lower side of the inner cavity of the upper flue (1); the lower flue (7) is installed on the lower side of the inner cavity of the upper flue (1); A second air inlet hole (7.3) is installed on the upper side, a second upper air guide cover (7.1) is installed on the upper side of the upper inner cavity of the lower flue (7), and a second lower air guide cover (7.2) is installed on the lower side of the inner cavity of the lower flue (7); the lower end of the upper flue (1) is connected to the upper end of the lower flue (7) via a quick connector (6), and the lower air guide cover (5) of the upper flue (1) is in contact with the second upper air guide cover (7.1) of the lower flue (7) to form an extended air guide cover.

[0006] Preferably, the upper air guide cover (2) and the lower air guide cover (5) are respectively connected and fixed to the outer wall of the upper flue (1) by a plurality of fixing bolts (3); and the second upper air guide cover (7.1) and the second lower air guide cover (7.2) are respectively connected and fixed to the outer wall of the lower flue (7) by a plurality of fixing bolts (3).

[0007] Preferably, the quick connector (6) comprises a first connector (6.1), a connecting rod (6.2), and a second connector (6.3); one end of the connecting rod (6.2) is connected to the first connector (6.1), and the other end is connected to the second connector (6.3); the first connector (6.1) and the second connector (6.3) are respectively mounted on two sides of the top end of the lower flue (7).

[0008] Preferably, the first connector (6.1) comprises an outer supporting crossbar (6.1.1), an inner connecting crossbar (6.1.2), an upper supporting clamp (6.1.3), a lower connecting outer longitudinal bar (6.1.4), and a lower connecting inner longitudinal bar (6.1.5); the lower connecting outer longitudinal bar (6.1.4), the lower connecting inner longitudinal bar (6.1.5), and the inner connecting crossbar (6.1.2) constitute a lower clamp and clamp the upper end of the lower flue (7); the upper part of the lower connecting outer longitudinal bar (6.1.4) extends to connect to the upper supporting clamp (6.1.3); an outer supporting crossbar (6.1.1) is provided on the outer side of the upper supporting clamp (6.1.3), and contacts the upper surface of the floor slab (8) through the outer supporting crossbar (6.1.1); the inner side of the upper supporting clamp (6.1.3) contacts the outer wall of the lower end of the upper flue (1).

[0009] Preferably, the upper end surface of the upper air guide cover (2) is provided with a V-shaped groove, and the lower end surface of the lower air guide cover (5) is provided with a V-shaped protrusion for cooperating with the V-shaped groove to form a sealing connection surface.

[0010] Preferably, a rectangular structure is formed between the upper air guide cover (2) and the lower air guide cover (5) and the inner wall of the upper flue (1); and a rectangular structure is formed between the second upper air guide cover (7.1) and the second lower air guide cover (7.2) and the inner wall of the lower flue (7).

[0011] The beneficial effects of the present invention are as follows: the present invention supports the upper flue by respectively installing the first connecting head and the second connecting head of the quick connecting piece on the two edges of the top end of the lower flue, so that the outer supporting cross arm contacts the upper surface of the floor slab of the upper floor, thereby reducing the pressure on the lower flue and realizing the function of quickly connecting the upper flue with the lower flue; in addition, the lower air guide hood at the lower end of the upper flue of the present invention contacts and connects with the second upper air guide hood of the lower flue to form an extended air guide hood, which plays a better role in guiding the smoke and avoids the possible smoke and odor cross-talk caused by the short air guide hood, thereby achieving the purpose of building a high-quality residence. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure before the upper flue and the lower flue are installed;

[0014] Figure 3 It is a structural diagram of the installation and docking position of the upper flue and the lower flue;

[0015] Figure 4 It is a structural diagram of the upper flue;

[0016] Figure 5 It is a schematic diagram of the utility model installed in an entire high-rise building;

[0017] In the above figure: upper flue 1, upper air guide cover 2, fixing bolts 3, air inlet 4, lower air guide cover 5, quick connector 6, lower flue 7, floor slab 8, wind cap 9, air inlet pipe 10, first connector 6.1, connecting rod 6.2, second connector 6.3, second upper air guide cover 7.1, second lower air guide cover 7.2, second air inlet 7.3, outer supporting cross arm 6.1.1, inner connecting cross bar 6.1.2, upper supporting clamp 6.1.3, lower connecting outer longitudinal rod 6.1.4, lower connecting inner longitudinal rod 6.1.5. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0019] Example 1, reference Figure 1-Figure 5The utility model mentions a new type of exhaust flue for preventing smoke and odor from mixing together, comprising an upper flue 1, an upper air guide hood 2, an air inlet 4, a lower air guide hood 5, a quick connector 6, and a lower flue 7. The air inlet 4 is installed on the upper side of the upper flue 1, the upper air guide hood 2 is installed on the upper side of the inner cavity of the upper flue 1, and the lower air guide hood 5 is installed on the lower side of the inner cavity of the upper flue 1; a second air inlet 7.3 is installed on the upper side of the lower flue 7, a second upper air guide hood 7.1 is installed on the upper side of the upper inner cavity of the lower flue 7, and a second lower air guide hood 7.2 is installed on the lower side of the inner cavity of the lower flue 7; the lower end of the upper flue 1 is connected to the upper end of the lower flue 7 by a quick connector 6, and the lower air guide hood 5 of the upper flue 1 is in contact with the second upper air guide hood 7.1 of the lower flue 7 to form an extended air guide hood.

[0020] Among them, the above-mentioned upper air guide cover 2 and lower air guide cover 5 are respectively connected and fixed to the outer wall of the upper flue 1 by multiple fixing bolts 3; the second upper air guide cover 7.1 and the second lower air guide cover 7.2 are respectively connected and fixed to the outer wall of the lower flue 7 by multiple fixing bolts 3, thereby avoiding the situation where the air guide cover falls off after long-term use, and also avoiding the problem that one air guide cover falls off and causes the air guide covers on multiple floors below to be smashed and fallen off.

[0021] Reference Figure 2 The quick connector 6 mentioned in the utility model includes a first connector 6.1, a connecting rod 6.2, and a second connector 6.3. One end of the connecting rod 6.2 is connected to the first connector 6.1, and the other end is connected to the second connector 6.3; the first connector 6.1 and the second connector 6.3 are respectively installed on the two sides of the top of the lower flue 7.

[0022] Reference Figure 3 The first connecting head 6.1 mentioned in the utility model includes an outer supporting cross arm 6.1.1, an inner connecting cross bar 6.1.2, an upper supporting clamp 6.1.3, a lower connecting outer longitudinal rod 6.1.4, and a lower connecting inner longitudinal rod 6.1.5. The lower connecting outer longitudinal rod 6.1.4, the lower connecting inner longitudinal rod 6.1.5 and the inner connecting cross bar 6.1.2 constitute a lower clamp and clamp the upper end of the lower flue 7; the upper part of the lower connecting outer longitudinal rod 6.1.4 extends to connect the upper supporting clamp 6.1.3, and an outer supporting cross arm 6.1.1 is provided on the outer side of the upper supporting clamp 6.1.3, which contacts the upper surface of the floor 8 through the outer supporting cross arm 6.1.1, and the inner side of the upper supporting clamp 6.1.3 contacts the outer wall of the lower end of the upper flue 1.

[0023] In addition, the upper and lower air guide covers 2 and 5 form a rectangular structure with the inner wall of the upper flue 1 ; the second upper and lower air guide covers 7 . 1 and 7 . 2 form a rectangular structure with the inner wall of the lower flue 7 .

[0024] When the utility model is used, the lower flue 7 is first installed at the reserved corner of the kitchen on the first floor of the building, and then the upper flue 1 is installed. Before installing the upper flue 1, the first connector 6.1 and the second connector 6.3 of the quick connector 6 are respectively installed on the two sides of the top of the lower flue 7, so that the outer supporting cross arm 6.1.1 is in contact with the upper surface of the floor slab 8 on the second floor to play a supporting role; then, the upper flue 1 is seated on the quick connector 6 at the top of the lower flue 7, and the lower air guide cover 5 at the lower end of the upper flue 1 is connected to the lower flue 8. The second upper air guide cover 7.1 of the flue 7 is in contact with the second upper air guide cover 7 to form an extended air guide cover, which plays a better guiding role and avoids the possible smoke and odor cross-talk caused by the short air guide cover; then, by analogy, the flues on the third floor, fourth floor, etc. are installed until the installation of the flue of the entire high-rise building is completed, so that the air guide covers of each floor are lengthened, reducing the occurrence of smoke and odor cross-talk problems, and a wind hood 9 is installed on the top of the high-rise building, and an air inlet pipe 10 is installed at the lowest point of the flue to realize the installation of the entire anti-smoke and odor exhaust flue.

[0025] Embodiment 2, a new type of exhaust flue for preventing smoke and odor from crossing over mentioned in the utility model comprises an upper flue 1, an upper air guide hood 2, an air inlet 4, a lower air guide hood 5, a quick connector 6, and a lower flue 7. The air inlet 4 is installed on the upper side of the upper flue 1, the upper air guide hood 2 is installed on the upper side of the inner cavity of the upper flue 1, and the lower air guide hood 5 is installed on the lower side of the inner cavity of the upper flue 1; a second air inlet 7.3 is installed on the upper side of the lower flue 7, a second upper air guide hood 7.1 is installed on the upper side of the upper inner cavity of the lower flue 7, and a second lower air guide hood 7.2 is installed on the lower side of the inner cavity of the lower flue 7; the lower end of the upper flue 1 is connected to the upper end of the lower flue 7 by a quick connector 6, and the lower air guide hood 5 of the upper flue 1 is in contact with the second upper air guide hood 7.1 of the lower flue 7 to form an extended air guide hood.

[0026] The difference from Example 1 is:

[0027] The upper end face of the upper air guide cover 2 mentioned in this embodiment is provided with a V-shaped groove, and the lower end face of the lower air guide cover 5 is provided with a V-shaped protrusion, which is used to cooperate with the V-shaped groove to form a sealing connection surface. In this way, a better sealing effect can be achieved and the situation of poor sealing during the connection process can be reduced.

[0028] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent transformation based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. A new type of exhaust flue to prevent smoke and odor from flowing through, characterized by: The invention comprises an upper flue (1), an upper air guide cover (2), an air inlet hole (4), a lower air guide cover (5), a quick connector (6), and a lower flue (7), wherein the air inlet hole (4) is installed on the upper side of the upper flue (1), the upper air guide cover (2) is installed on the upper side of the inner cavity of the upper flue (1), and the lower air guide cover (5) is installed on the lower side of the inner cavity of the upper flue (1); a second air inlet hole (7.3) is installed on the upper side of the lower flue (7), a second upper air guide cover (7.1) is installed on the upper side of the upper inner cavity of the lower flue (7), and a second lower air guide cover (7.2) is installed on the lower side of the inner cavity of the lower flue (7); the lower end of the upper flue (1) is connected to the upper end of the lower flue (7) by a quick connector (6), and the lower air guide cover (5) of the upper flue (1) is in contact with the second upper air guide cover (7.1) of the lower flue (7) to form an extended air guide cover.

2. The novel exhaust duct for preventing smoke and odor from flowing into each other according to claim 1 is characterized in that: The upper air guide cover (2) and the lower air guide cover (5) are respectively connected and fixed to the outer wall of the upper flue (1) by means of a plurality of fixing bolts (3); the second upper air guide cover (7.1) and the second lower air guide cover (7.2) are respectively connected and fixed to the outer wall of the lower flue (7) by means of a plurality of fixing bolts (3).

3. The novel exhaust duct for preventing smoke and odor from flowing into each other according to claim 2 is characterized in that: The quick connector (6) comprises a first connector (6.1), a connecting rod (6.2), and a second connector (6.3); one end of the connecting rod (6.2) is connected to the first connector (6.1), and the other end is connected to the second connector (6.3); the first connector (6.1) and the second connector (6.3) are respectively mounted on two sides of the top end of the lower flue (7).

4. The novel exhaust duct for preventing smoke and odor from flowing into each other according to claim 3 is characterized in that: The first connector (6.1) comprises an outer supporting cross arm (6.1.1), an inner connecting cross bar (6.1.2), an upper supporting clamp (6.1.3), a lower connecting outer longitudinal bar (6.1.4), and a lower connecting inner longitudinal bar (6.1.5); the lower connecting outer longitudinal bar (6.1.4), the lower connecting inner longitudinal bar (6.1.5), and the inner connecting cross bar (6.1.2) form a lower clamp and clamp the upper end of the lower flue (7); the upper part of the lower connecting outer longitudinal bar (6.1.4) extends to connect to the upper supporting clamp (6.1.3); an outer supporting cross arm (6.1.3) is provided on the outer side of the upper supporting clamp (6.1.3); 6.1.1), through the external support cross arm (6.1.1) in contact with the upper surface of the floor slab (8), the upper support clip ( The inner side of the upper flue (6.1.3) contacts the outer wall of the lower end of the upper flue (1).

5. The novel exhaust duct for preventing smoke and odor from flowing into each other according to claim 4 is characterized in that: The upper end surface of the upper air guide cover (2) is provided with a V-shaped groove, and the lower end surface of the lower air guide cover (5) is provided with a V-shaped protrusion, which is used to cooperate with the V-shaped groove to form a sealing connection surface.

6. The novel smoke and odor-proof exhaust duct according to claim 1 or 5 is characterized in that: A rectangular structure is formed between the upper air guide cover (2) and the lower air guide cover (5) and the inner wall of the upper flue (1); and a rectangular structure is formed between the second upper air guide cover (7.1) and the second lower air guide cover (7.2) and the inner wall of the lower flue (7).

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