Combined air inlet and exhaust passage for building

Abstract

The utility model relates to a combined air intake and exhaust passage for a building, and belongs to the technical field of air intake and exhaust passages for kitchens and toilets of buildings. According to the technical scheme, a smoke exhaust duct and an air inlet duct are formed by combining wall corners of a building and assembling units; floor slab reserved holes are formed in floor slabs at the bottom and the top of the wall corner, positioning and sealing bearing pieces are arranged in the floor slab reserved holes, the overall shape of the positioning and sealing bearing pieces is matched with the section shape of the assembly, and the assembly is arranged between the positioning and sealing bearing pieces at the bottom and the top. And the positioning sealing bearing piece is fixed on the floor beside the floor reserved hole. The utility model has the beneficial effects that the smoke exhaust duct and the air inlet duct are assembled by using the corner by adopting the assembly, the connector is good in sealing, smoke and air leakage is avoided, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a combined air intake and exhaust duct for buildings, belonging to the technical field of air intake and exhaust ducts for kitchens and bathrooms in buildings. Background Art

[0002] The smoke exhaust ducts in the kitchen and bathroom are also called ventilation ducts, exhaust ducts, exhaust ducts, etc. Common problems with the exhaust ducts in the existing technology are: smoke and odor transmission and low installation efficiency. The main reasons for the smoke and odor transmission and low installation efficiency are: all the smoke exhaust ducts in the existing technology are made of multiple exhaust ducts prefabricated in the factory and transported to the building construction site. They are assembled from bottom to top in the corners of the building. One exhaust duct is installed on each floor. The interfaces of the exhaust ducts on each floor need to be aligned up and down, and then plastered and sealed. Since the prefabricated exhaust ducts need to be installed in the corners of the room, the flatness of the wall in the corner affects the alignment of the exhaust duct interface. In addition, the exhaust ducts prefabricated in batches in the factory have dimensional errors. Generally, the exhaust ducts on each floor differ by 2-3 cm. The exhaust duct interfaces are greatly misaligned, cannot be plastered, and are not well sealed, which easily causes smoke and air leakage. Utility Model Content

[0003] The purpose of the utility model is to provide a combined air intake and exhaust duct for a building, which utilizes the wall corner to assemble the smoke exhaust duct and the air intake duct with a combination of parts, has a good interface seal, avoids smoke and air leakage, improves installation efficiency, and solves the above-mentioned problems existing in the background technology.

[0004] The technical solution of this utility model is:

[0005] A combined air intake and exhaust duct for a building comprises at least one smoke exhaust duct and at least one air intake duct, wherein the smoke exhaust duct and the air intake duct are composed of a wall corner and an assembly; the assembly is composed of a rectangular tube, an extended side one and an extended side two, the extended side one and the extended side two respectively extend outward along two adjacent sides of the rectangular tube, the ends of the extended side one and the extended side two are respectively close to and fixed to the two sides of the wall corner, the rectangular tube is the smoke exhaust duct, and the space enclosed between the rectangular tube and the two sides of the wall corner is the air intake duct; the floor slabs at the bottom and top of the wall corner are provided with floor slab reserved holes, and a positioning sealing support member is arranged in the floor slab reserved holes, the overall shape of the positioning sealing support member matches the cross-sectional shape of the assembly, the assembly is arranged between the bottom and top positioning sealing support members, and the positioning sealing support member is fixed to the floor slab next to the floor slab reserved hole.

[0006] Furthermore, the positioning sealing support member is arranged in a reserved hole in the floor slab, wherein the lower part of the positioning sealing support member is located at the top of the lower building and matches the top of the assembly of the lower building, and the upper part of the positioning sealing support member is located at the bottom of the upper building and matches the bottom end of the assembly of the upper building; the gaps between the positioning sealing support member and the assembly of the upper building and the assembly of the lower building are sealed by mortar; the extended side one and the extended side two ends of the assembly are both load-bearing angles, and the load-bearing angle is a sloped structure. The gap between the sloped structure of the load-bearing angle and the wall corner is filled with anti-cracking mortar, and fixed and sealed with the wall corner, forming an airtight smoke exhaust duct and air intake duct as a whole.

[0007] Furthermore, the positioning sealing support is composed of positioning ribs, rectangular positioning plates and L-shaped positioning plates. The four rectangular positioning plates form a rectangular positioning frame. The inner diameter of the rectangular positioning frame matches the inner diameter of the rectangular tube. An L-shaped positioning plate is arranged outside the rectangular positioning frame. The distance between the L-shaped positioning plate and the rectangular positioning frame matches the thickness of the rectangular tube. The two ends of the L-shaped positioning plate are respectively connected to the rectangular positioning frame through corresponding positioning ribs, and the two positioning ribs respectively match the positions of the extended side one and the extended side two.

[0008] Furthermore, the positioning sealing support member is fixed to the floor slab next to the reserved hole in the floor slab through a positioning rib support member and a rectangular plate support member; wherein: one end of the two positioning rib support members is fixed to the floor slab through expansion bolts, and the other ends of the two positioning rib support members are respectively welded to the corresponding positioning ribs; the middle part of the rectangular plate support member is welded to the corner of the rectangular positioning frame away from the L-shaped positioning plate, and both ends are fixed to the floor slab through expansion bolts.

[0009] The beneficial effects of the utility model are as follows: the smoke exhaust duct and the air inlet duct are assembled by using the assembly parts at the wall corner, the interface is well sealed, smoke and air leakage is avoided, and the installation efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of an embodiment of the utility model before installation;

[0011] Figure 2 This is a schematic diagram of an embodiment of the utility model after installation;

[0012] Figure 3 This is a cross-sectional view of the exhaust port and air inlet of the assembly after installation of the embodiment of the utility model;

[0013] Figure 4 This is a schematic diagram of the sealing support member after installation according to an embodiment of the utility model;

[0014] Figure 5 This is a top view of the sealing support member after installation according to an embodiment of the utility model;

[0015] Figure 6 This is a schematic diagram of a positioning sealing support member according to an embodiment of the present utility model;

[0016] In the figure: assembly 1, smoke exhaust duct 2, air inlet duct 3, exhaust port 4, air inlet 5, air inlet pipe 8, wall 9, air inlet filter 10, floor 11, middle partition plate 14, exhaust check valve 15, air inlet check valve 16, load-bearing angle 17, floor reserved hole 18, wall corner 19, anti-cracking mortar 20, positioning and sealing support 21, mortar 22, rectangular tube 23, extended side 1 24, extended side 2 25, positioning rib support 26, rectangular plate support 27, positioning rib 28, rectangular positioning plate 29, L-shaped positioning plate 30, smoke exhaust duct support 31, edge positioning member 32, corner positioning member 33. DETAILED DESCRIPTION

[0017] The present invention is further described below through examples.

[0018] Refer to the attached Figure 1-6 This embodiment provides a combined air intake and exhaust duct for a building, comprising at least one exhaust duct 2 and at least one intake duct 3. The exhaust duct 2 and the intake duct 3 are formed by combining a corner 19 of the building and a component 1; the component 1 is composed of a rectangular tube 23, an extended side 1 24, and an extended side 25. The extended side 1 24 and the extended side 25 are respectively extended outward along two adjacent sides of the rectangular tube 23. The ends of the extended side 1 24 and the extended side 25 are respectively close to and fixed to the two sides of the corner 19. The rectangular tube 23 is the smoke exhaust duct 2, and the space enclosed between the rectangular tube 23 and the two sides of the wall corner 19 is the air inlet duct 3; the floor slabs 11 at the bottom and top of the wall corner 19 are provided with floor slab reserved holes 18, and a positioning sealing support member 21 is provided in the floor slab reserved hole 18. The overall shape of the positioning sealing support member 21 matches the cross-sectional shape of the assembly 1. The assembly 1 is arranged between the bottom and top positioning sealing support members 21, and the positioning sealing support member 21 is fixed on the floor slab 11 next to the floor slab reserved hole 18.

[0019] Refer to the attached Figure 4 The positioning sealing support member 21 is arranged in the reserved hole 18 of the floor slab, wherein the lower part of the positioning sealing support member 21 is located at the top of the lower building and matches the top of the assembly 1 of the lower building, and the upper part of the positioning sealing support member 21 is located at the bottom of the upper building and matches the bottom end of the assembly 1 of the upper building; the gaps between the positioning sealing support member 21 and the assembly of the upper building and the assembly of the lower building are sealed by mortar 22; the ends of the extended side 1 24 and the extended side 2 25 of the assembly 1 are both load-bearing angles 17, and the load-bearing angle 17 is a sloped structure. The gap between the sloped structure of the load-bearing angle 17 and the wall corner 19 is filled with anti-cracking mortar 20, and fixed and sealed with the wall corner 19, forming an airtight smoke exhaust duct 2 and air intake duct 3 as a whole.

[0020] Refer to the attached Figure 5 The positioning sealing support member 21 is composed of positioning ribs 28, rectangular positioning plates 29 and L-shaped positioning plates 30. The four rectangular positioning plates 29 form a rectangular positioning frame. The inner diameter of the rectangular positioning frame matches the inner diameter of the rectangular tube 23. The L-shaped positioning plate 30 is set outside the rectangular positioning frame. The distance between the L-shaped positioning plate 30 and the rectangular positioning frame matches the thickness of the rectangular tube 23. The two ends of the L-shaped positioning plate 30 are connected to the rectangular positioning frame through corresponding positioning ribs 28. The two positioning ribs 28 match the positions of the extended side 1 24 and the extended side 2 25 respectively.

[0021] Refer to the attached Figure 5 The positioning sealing support member 21 is fixed to the floor 11 next to the reserved hole 18 of the floor slab through the positioning rib support member 26 and the rectangular plate support member 27; wherein: one end of the two positioning rib support members 26 is fixed to the floor slab 11 through expansion bolts, and the other ends of the two positioning rib support members 26 are respectively welded to the corresponding positioning ribs 28; the middle part of the rectangular plate support member 27 is welded to the corner of the rectangular positioning frame away from the L-shaped positioning plate 30, and both ends are fixed to the floor slab 11 through expansion bolts.

[0022] Refer to the attached Figure 3 The exhaust duct 2 is provided with an exhaust port 4 connected to the kitchen and bathroom, and an exhaust check valve 15 is provided on the exhaust port 4; the air inlet duct 3 is provided with an air inlet 5 connected to the kitchen and bathroom, and an air inlet check valve 16 is provided on the air inlet duct 3. The air inlet duct 3 is connected with the air outside the building through the air inlet pipe 8. The air enters the kitchen and bathroom of the building through the air inlet pipe 8, the air inlet duct 3 and the air inlet 5, destroying the vacuum generated in the residential kitchen and bathroom when using the exhaust fan and the range hood, avoiding odor from the floor drain and smoke and odor, and keeping the air in the residential kitchen and bathroom fresh.

[0023] Refer to the attached Figure 3 The air intake pipe 8 is preset in the wall 9 of the building, one end of the air intake pipe 8 is connected to the air inlet duct 3, and the other end of the air intake pipe 8 is connected to the air outside the building. An air intake filter 10 is provided on the air intake pipe 8.

[0024] In this embodiment, the assembly 1 can also be composed of a large L-shaped plate and a small L-shaped plate. The length of each side of the large L-shaped plate is shorter than that of the small L-shaped plate. The ends of the large L-shaped plate are respectively attached to and fixed to the two sides of the wall corner 19. The small L-shaped plate is buckled into the large L-shaped plate. A rectangular tube 23 is formed between the small L-shaped plate and the large L-shaped plate. The large L-shaped plate outside the rectangular tube 23 has two extended sides, one 24 and the other 25. The rectangular tube 23 is the smoke exhaust duct 2. The space enclosed between the rectangular tube 23 and the two sides of the wall corner 19 is the air intake duct 3. The small L-shaped plate serves as the intermediate partition 14 between the smoke exhaust duct 2 and the air intake duct 3. The final structure of this assembly is the same as the previous assembly, but the assembly method is different.

Claims

1. A combined air intake and exhaust duct for a building, characterized by: The invention comprises at least one smoke exhaust duct (2) and at least one air inlet duct (3), wherein the smoke exhaust duct (2) and the air inlet duct (3) are formed by combining a wall corner (19) of a building and an assembly (1); the assembly (1) is formed by combining a rectangular tube (23), an extended side 1 (24) and an extended side 2 (25), wherein the extended side 1 (24) and the extended side 2 (25) are respectively extended outward along two adjacent sides of the rectangular tube (23), and the ends of the extended side 1 (24) and the extended side 2 (25) are respectively close to and fixed to the two sides of the wall corner (19), and the rectangular tube (23) is the smoke exhaust duct ( 2), the space enclosed between the rectangular tube (23) and the two sides of the wall corner (19) is the air inlet (3); the floor slabs (11) at the bottom and top of the wall corner (19) are both provided with floor slab reserved holes (18), and a positioning sealing support member (21) is provided in the floor slab reserved holes (18), and the overall shape of the positioning sealing support member (21) matches the cross-sectional shape of the assembly (1), and the assembly (1) is provided between the bottom and top positioning sealing support members (21), and the positioning sealing support member (21) is fixed on the floor slab (11) next to the floor slab reserved holes (18).

2. The combined air intake and exhaust duct for a building according to claim 1, characterized in that: The positioning sealing support member (21) is arranged in the reserved hole (18) of the floor slab, wherein the lower part of the positioning sealing support member (21) is located at the top of the lower building and matches the top of the assembly (1) of the lower building, and the upper part of the positioning sealing support member (21) is located at the bottom of the upper building and matches the bottom of the assembly (1) of the upper building; the gaps between the positioning sealing support member (21) and the assembly of the upper building and the assembly of the lower building are sealed by mortar (22); the ends of the extended side 1 (24) and the extended side 2 (25) of the assembly (1) are both load-bearing angles (17), and the load-bearing angle (17) is a sloped structure. The gap between the sloped structure of the load-bearing angle (17) and the wall corner (19) is filled by anti-cracking mortar (20), and is fixed and sealed with the wall corner (19), so that the whole constitutes an airtight exhaust duct (2) and an air inlet duct (3).

3. A combined air intake and exhaust duct for a building according to claim 1 or 2, characterized in that: The positioning seal support member (21) is fixed to the floor slab (11) next to the floor slab reserved hole (18) through a positioning rib support member (26) and a rectangular plate support member (27); wherein: one end of the two positioning rib support members (26) is fixed to the floor slab (11) through expansion bolts, and the other ends of the two positioning rib support members (26) are respectively welded to the corresponding positioning ribs (28); the middle part of the rectangular plate support member (27) is welded to the corner of the rectangular positioning frame away from the L-shaped positioning plate (30), and the two ends are fixed to the floor slab (11) through expansion bolts.

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