Exhaust hood

Abstract

This invention provides an exhaust hood for installation at the end of an exhaust duct in a building. It includes an exhaust body with a base. The base has a first opening on one side and a second opening on the other side. The first opening has a mesh structure, and the second opening has a plurality of spaced-apart blades. A mounting bracket is provided on the first opening side of the base for fixed assembly with the exhaust duct. Furthermore, the exhaust hood has a wind deflector located on the blade side to block backwind influences and is connected to the exhaust body via at least one connector. One end of the connector is connected to the base, and the other end is connected to the wind deflector to maintain its stability. This structural configuration effectively reduces the impact of external wind on the backflow of the exhaust duct while maintaining exhaust efficiency and structural stability.

Claims

1. An exhaust hood for installation at the end of an exhaust duct of a building, comprising: an exhaust body including: a base having a first opening on one side and a second opening communicating with the first opening on the other side; a mesh structure disposed in the first opening; a plurality of blades arranged at intervals in the second opening; and a mounting member disposed on the side of the base having the first opening for fastening to the exhaust duct; a windproof plate disposed on the side of the base having the blades; and at least one connector disposed between the windproof plate and the exhaust body, one end of the connector being connected to the base and the other end being connected to the windproof plate.

2. The exhaust hood as described in claim 1, wherein, Each blade has a structure that extends obliquely from one end to the other and then turns to extend parallel, and has a first section and a second section connected together, the first section and the second section being sandwiched to form an included angle.

3. The exhaust hood as described in claim 2, wherein, The included angle is 100 to 145 degrees.

4. The exhaust hood as described in claim 3, wherein, The base includes a front cover and a rear cover. The first opening is formed in the front cover, the mesh structure is disposed in the front cover, the mounting member is disposed outside the front cover, and the second opening is formed in the rear cover. The rear cover and the front cover are combined to form the base.

5. The exhaust hood as described in claim 4, wherein, The mesh structure has a plurality of rhomboid meshes, each rhomboid mesh having a first diagonal and a second diagonal, the length of the first diagonal being greater than the length of the second diagonal, and the extension direction of the first diagonal of each rhomboid mesh being parallel to the extension direction of the length of the blades.

6. The exhaust hood as described in any one of claims 1 to 5, wherein, The connector is an L-shaped piece with a vertical part and a horizontal part. One end edge of the vertical part is connected to the base, and one side of the horizontal part is attached to the surface of the windproof plate.

7. The exhaust hood as described in claim 6, wherein, The vertical plate has a pair of extension plates formed by extending from the opposite side edges of the vertical plate.

8. The exhaust hood as described in claim 7, wherein, The second opening is octagonal, and the vertical piece is integrally formed with the base. The vertical piece is formed by extending from the base toward the windproof plate.

9. The exhaust hood as described in claim 8, wherein, The end edge of the vertical piece is connected to one side of the second opening and is inclined. The angle between the end edge of the vertical piece and the horizontal line is 30 to 60 degrees.

10. The exhaust hood as described in any one of claims 1 to 5, wherein, The mounting component is a tubular structure, and it is positioned to correspond to the first opening of the base, so that the hollow area of ​​the mounting component is connected to the first opening.

11. The exhaust hood as described in claim 10, wherein, The outer side of the mounting piece has at least one locking spring for locking against the inner wall of the exhaust passage.

12. The exhaust hood as described in claim 11, wherein, The number of the clips is three, and the included angle between any two adjacent clips is equal.

13. The exhaust hood as described in claim 12, wherein, The connector is an L-shaped piece with a vertical part and a horizontal part. One end edge of the vertical part is connected to the base, and one side of the horizontal part is attached to the surface of the windproof plate.

14. The exhaust hood as described in claim 13, wherein, The vertical plate has a pair of extension plates formed by extending from the opposite side edges of the vertical plate.

15. The exhaust hood as described in claim 14, wherein, The second opening is octagonal, and the vertical piece is integrally formed with the base. The vertical piece is formed by extending from the base toward the windproof plate.

16. The exhaust hood as described in claim 15, wherein, The end edge of the vertical piece is connected to one side of the second opening and is inclined. The angle between the end edge of the vertical piece and the horizontal line is 30 to 60 degrees.

17. The exhaust hood as described in any one of claims 1 to 5, wherein, The mounting component is an elastic frame structure with one side open. The open end of the mounting component faces the first opening. The two opposite ends of the open end of the mounting component are located on the base and on opposite sides of the first opening. The width of the mounting component increases from the open end to the other end.

18. The exhaust hood as described in claim 17, wherein, The connector is an L-shaped piece with a vertical part and a horizontal part. One end edge of the vertical part is connected to the base, and one side of the horizontal part is attached to the surface of the windproof plate.

19. The exhaust hood as described in claim 18, wherein, The vertical plate has a pair of extension plates formed by extending from the opposite side edges of the vertical plate.

20. The exhaust hood as described in claim 19, wherein, The second opening is octagonal, and the vertical piece is integrally formed with the base. The vertical piece is formed by extending from the base toward the windproof plate.

21. The exhaust hood as described in claim 20, wherein, The end edge of the vertical piece is connected to one side of the second opening and is inclined. The angle between the end edge of the vertical piece and the horizontal line is 30 to 60 degrees.

22. The exhaust hood as described in any one of claims 1 to 5, wherein, The minimum distance between the windbreak board and the base is 4 to 8 cm.

23. The exhaust hood as described in claim 22, wherein, The connector is an L-shaped piece with a vertical part and a horizontal part. One end edge of the vertical part is connected to the base, and one side of the horizontal part is attached to the surface of the windproof plate.

24. The exhaust hood as described in claim 23, wherein, The vertical plate has a pair of extension plates formed by extending from the opposite side edges of the vertical plate.

25. The exhaust hood as described in claim 24, wherein, The second opening is octagonal, and the vertical piece is integrally formed with the base. The vertical piece is formed by extending from the base toward the windproof plate.

26. The exhaust hood as described in claim 25, wherein, The end edge of the vertical piece is connected to one side of the second opening and is inclined. The angle between the end edge of the vertical piece and the horizontal line is 30 to 60 degrees.

27. The exhaust hood as described in claim 1 or 2, wherein, The base includes a front cover and a rear cover. The first opening is formed in the front cover, the mesh structure is disposed in the front cover, the mounting member is disposed outside the front cover, and the second opening is formed in the rear cover. The rear cover and the front cover are combined to form the base.

28. The exhaust hood as described in claim 1, 2, or 3, wherein, The mesh structure has a plurality of rhomboid meshes, each of which has a first diagonal and a second diagonal. The length of the first diagonal is greater than that of the second diagonal, and the extension direction of the first diagonal of the rhomboid meshes is parallel to the extension direction of the blades.

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