CN216109526U

CN216109526U - Wind cap structure

Info

Publication number: CN216109526U
Application number: CN202120932685.9U
Authority: CN
Inventors: 余丹阳; 王智捷; 李永波; 姚家前; 潘叶江
Original assignee: Vatti Co Ltd
Current assignee: Vatti Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-03-22
Anticipated expiration: 2031-04-30

Abstract

The utility model provides a hood structure which comprises a shell, wherein a cavity is formed in the shell, an air inlet is formed at the bottom of the shell, an air outlet is formed at the top of the shell, a plurality of blades are arranged at the air outlet, one ends of the blades are flush with the air outlet surface of the air outlet, the other ends of the blades extend towards the cavity, and the extending length of the blades is gradually increased from one end close to the air inlet to one end far away from the air inlet. The blades are in a sunken step shape, airflow can be guided out from the air inlet to the air outlet along the blades after entering the air inlet, and the blades have a flow guiding effect on the airflow, so that the wind resistance of the hood structure is effectively reduced, and the noise is reduced.

Description

Wind cap structure

Technical Field

The utility model relates to the technical field of smoke exhaust, in particular to a hood structure.

Background

With the improvement of living standard of people, the requirements of people on living environment and living comfort level are higher and higher; the smoke exhaust channel of the high-rise residence quickly discharges unclean air in a kitchen or a toilet to the outside for indoor ventilation, so the requirement on smoke exhaust of the smoke exhaust channel is higher and higher. In the prior art, the ventilation fan is used at the outlet of the public smoke exhaust channel of the high-rise residence to assist in smoke exhaust, the rain-proof requirement is considered about the smoke exhaust direction, and the smoke exhaust form is usually adopted, so that on one hand, the wall surface of the balcony around the fan is polluted by oil smoke stains, and on the other hand, the smoke exhaust form noise of the smoke exhaust all around is diffused all around along with the smoke, the noise value is usually overlarge, and the rest of resident users is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model solves one of the problems in the prior related art to a certain extent, and therefore the utility model aims to provide a hood structure for reducing noise.

The above purpose is realized by the following technical scheme:

the utility model provides a hood structure, includes the casing form in the casing and hold the chamber the casing bottom forms the air intake the casing top forms the air outlet department is equipped with a plurality of blades, the one end of blade with the air-out face parallel and level of air outlet, the other end of blade to hold the chamber direction and extend, just the extension length of blade is by being close to the one end of air intake is to keeping away from the one end of air intake lengthens gradually.

As a further improvement of the present invention, the housing includes a top plate, the housing is open at the top, the top plate is disposed at the opening, and the air outlet is formed between a peripheral edge of the opening and the top plate.

As a further improvement of the utility model, the air inlet (31) is arranged below the top plate (4), and the projection of the top plate (4) on the bottom plate covers the air inlet (31).

As a further improvement of the utility model, the distance between the edge of the top plate and the corresponding edge of the air inlet is more than 50 mm.

As a further improvement of the utility model, a rib is formed by extending upwards from the peripheral edge of the air inlet, and the height of the rib is more than 80 mm.

As a further improvement of the present invention, the air outlet includes a first air outlet disposed at a left end of the top plate, a second air outlet disposed at a right end of the top plate, a third air outlet disposed at a front end of the top plate, and a fourth air outlet disposed at a rear end of the top plate, blades disposed at the first air outlet and the second air outlet are disposed along a width direction of the housing, and blades disposed at the third air outlet and the fourth air outlet are disposed along a length direction of the housing.

As a further improvement of the utility model, the sum of the air inlet areas of the first air outlet and the second air outlet is S1, the sum of the air inlet areas of the third air outlet and the fourth air outlet is S2, the area of the air inlet is S3, S1+ S2 is larger than S3 times a, and S1+ S2 is larger than S3 times a, wherein a is 1.4-1.6.

As a further improvement of the present invention, a flow guiding structure is disposed at one end of the vane close to the air inlet, and the flow guiding structure is used for guiding the air flowing in from the air inlet to the air outlet.

As a further improvement of the utility model, a rain shielding structure is arranged at the upper end part of the blade close to the top plate.

As a further improvement of the present invention, the rain shielding structure includes a rain shielding sheet, and the rain shielding sheet is disposed to be inclined toward the top plate from one end close to the blade to one end far away from the blade.

Compared with the prior art, the utility model at least comprises the following beneficial effects:

1. the utility model provides a hood structure, blade are formula echelonment that sinks, and the air current gets into the back from the air intake, can follow the blade and derive to the air outlet, and the blade has the effect of water conservancy diversion to the air current, effectively reduces hood structure windage, noise reduction.

Drawings

FIG. 1 is a schematic structural diagram of a hood structure according to an embodiment;

FIG. 2 is an exploded view of an exemplary hood structure;

FIG. 3 is a sectional view of one of the blast cap structures in the embodiment;

FIG. 4 is a schematic structural view of a top plate and a blade in the embodiment;

FIG. 5 is a rear view of the top plate and vanes of the embodiment;

FIG. 6 is a schematic structural view of a blade in the embodiment;

FIG. 7 is another schematic view of the blade according to the embodiment.

Detailed Description

The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications to the embodiments of the utility model or equivalent substitutions of parts of technical features without departing from the spirit of the utility model are intended to be covered by the scope of the claims of the utility model.

Referring to fig. 1-7, the hood structure of the present invention includes a housing 1, a cavity 2 is formed in the housing 1, an air inlet 31 is formed at the bottom of the housing 1, an air outlet 6 is formed at the top of the housing 1, a plurality of blades 7 are disposed at the air outlet 6, one end of each blade 7 is flush with an air outlet surface of the air outlet 6, the other end of each blade 7 extends toward the cavity 2, and the extension length of each blade 7 gradually increases from one end close to the air inlet 31 to one end far away from the air inlet 31.

The utility model provides a hood structure, wherein a plurality of blades 7 are arranged at an air outlet 6, one end of each blade 7 is flush with the air outlet surface of the air outlet 6, the other end of each blade 7 extends towards the direction of a containing cavity 2, the extending length of each blade 7 is gradually increased from one end close to an air inlet 31 to one end far away from the air inlet 31, so that the blades 7 are in a sunken step shape, airflow can be led out to the air outlet 6 along the blades 7 after entering from the air inlet 31, and the blades 7 have the flow guiding effect on the airflow, thereby effectively reducing the wind resistance of the hood structure and reducing noise.

The housing 1 includes a top plate 4, the top of the housing 1 is opened 8, the top plate 4 is disposed at the opening 8, and the air outlet 6 is formed between the peripheral edge of the opening 8 and the top plate 4.

In the present embodiment, the top plate 4 is disposed near the center of the opening 8.

And the opening 8 is provided with a top plate fixing frame 81, the top plate fixing frame 81 comprises a first top plate fixing strip 811 and a second top plate fixing strip 812, and the first top plate fixing strip 811 and the second top plate fixing strip 812 are arranged along the width direction of the hood structure. The first top plate fixing strip 811 and the second top plate fixing strip 812 are transversely provided on the opening 8. The left and right ends of the top plate 4 are connected to the first top plate fixing strip 811 and the second top plate fixing strip 812, respectively.

The air outlet 6 is in including setting up first air outlet 61, the setting of roof 4 left end are in second air outlet 62, the setting of roof 4 right-hand member are in the third air outlet 63 of roof 4 front end and setting are in the fourth air outlet 64 of roof 4 rear end first air outlet 61 second air outlet 62 third air outlet 63 reaches all be equipped with a plurality of blades 7 on the fourth air outlet 64, set up and be in first air outlet 61 reaches the blade 7 of second air outlet 62 is followed the width direction setting of casing 1 sets up, sets up and is in third air outlet 63 reaches the blade 7 of fourth air outlet 64 is followed the length direction setting of casing 1. The blades 7 disposed at the first outlet 61 are parallel to each other, the blades 7 disposed at the second outlet 62 are parallel to each other, the blades 7 disposed at the third outlet 63 are parallel to each other, and the blades 7 disposed at the fourth outlet 64 are parallel to each other.

In this embodiment, 6 to 10 blades 7 are disposed at the first outlet 61, the second outlet 62, the third outlet 63, or the fourth outlet 64. And the blades 7 are arranged at even intervals. An air outlet channel is formed between the adjacent blades 7, or between the blades 7 and the top plate 4, or between the blades 7 and the shell 1.

The air inlet 31 is arranged below the top plate 4, and the distance between the edge of the top plate 4 and the corresponding edge of the air inlet 31 is larger than 50 mm.

The projection of the top plate 4 on the bottom plate 3 covers the air inlet 31.

The air inlet 31 is arranged below the top plate 4, and the projection of the top plate 4 on the bottom plate 3 covers the air inlet 31, that is, the air outlet 6 and the air inlet 31 are arranged in a staggered manner, and the air inlet 31 is shielded by the top plate 4, so that raindrops are prevented from dropping to the air inlet 31 through the air outlet 6.

And the distance D between the edge of the top plate 4 and the corresponding edge of the air inlet 31 is greater than 50mm, that is, the distance D1 between the left edge of the top plate 4 and the left edge of the air inlet 31 is greater than 50mm, the distance D2 between the right edge of the top plate 4 and the right edge of the air inlet 31 is greater than 50mm, the distance D3 between the front edge of the top plate 4 and the front edge of the air inlet 31 is greater than 50mm, and the distance D4 between the rear edge of the top plate 4 and the rear edge of the air inlet 31 is greater than 50 mm. Further preventing raindrops from dropping through the air outlet 6 to the air inlet 31.

A rain shield 71 is provided at the upper end of the blade 7 adjacent to the top plate 4.

For example, if 8 blades 7 are disposed at the first air outlet 61, and the 8 blades 7 are sequentially disposed from the position close to the top plate 4 to the position far away from the top plate 4, the intervals are uniform. The upper ends of 4 of the blades 7 close to the top plate 4 are provided with rain shielding structures 71, so that rainwater cannot enter an air outlet channel obliquely, and the upper ends of the remaining 4 blades 7 far away from the top plate 4 are not provided with rain shielding structures 71, and are far away from the top plate 4, namely far away from the air inlet 31. Can save materials and effectively keep off rain.

In this embodiment, the rain shielding structure 71 includes a rain shielding sheet, and the rain shielding sheet is inclined toward the top plate 4 from the end close to the blade 7 to the end far from the blade 7.

A flow guide structure 72 is disposed at one end of the vane 7 close to the air inlet 31, and the flow guide structure 72 is used for guiding the air flowing in from the air inlet 31 to the air outlet 6. The lower end part of the blade 7 is provided with a flow guide structure 72, the flow guide structure 72 comprises a flow guide sheet, and the flow guide sheet is obliquely arranged from one end close to the blade 7 to one end far away from the blade 7 to the direction of the air inlet 31. Simple structure effectively guides the air flow and reduces the noise.

The sum of the air inlet areas of the first air outlet 61 and the second air outlet 62 is S1, the sum of the air inlet areas of the third air outlet 63 and the fourth air outlet 64 is S2, the area of the air inlet is S3, and S1+ S2 is more than a times of S3, wherein a is 1.4-1.6. In this example, a is 1.4. Effectively reducing the wind resistance.

The peripheral edge at the air inlet 31 extends upwards to form a rib 311, and the height H1 of the rib 311 is greater than 80 mm. It is possible to prevent water droplets entering the inner chamber from flowing into the air inlet 31.

The shell 1 further comprises a top plate 4, a surrounding plate 5 and a bottom plate 3, a connecting support is arranged at the upper end of the surrounding plate 5, and the top plate fixing frame 81 is connected with the connecting support. The bottom plate 3 is provided with baffle plates 32, the baffle plates 32 are respectively arranged at four corners of the bottom plate 3, a water outlet 321 is formed between the two baffle plates 32, and the lower end part of the enclosing plate 5 is connected with the retaining side 311.

The above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.

Claims

1. The utility model provides a hood structure, its characterized in that includes casing (1) form in casing (1) and hold chamber (2) casing (1) bottom forms air intake (31) casing (1) top forms air outlet (6) department is equipped with a plurality of blades (7), the one end of blade (7) with the air-out face parallel and level of air outlet (6), the other end of blade (7) to hold chamber (2) direction and extend, just the extension length of blade (7) is by being close to the one end of air intake (31) is to keeping away from the one end of air intake (31) is elongated gradually.

2. A hood structure according to claim 1, characterized in that said casing (1) comprises a top plate (4), said casing (1) being open at the top, said top plate (4) being arranged at said opening and forming said air outlet opening (6) between the peripheral edge of said opening and said top plate (4).

3. A hood structure according to claim 2, characterized in that said air inlet opening (31) is arranged below said top plate (4), and the projection of said top plate (4) onto said bottom plate covers said air inlet opening (31).

4. A hood structure according to claim 3, characterized in that the distance between the edge of the top plate (4) and the corresponding edge of the air inlet opening (31) is more than 50 mm.

5. A hood structure according to claim 3, characterized in that the peripheral edge at the air inlet (31) extends upwards to form a rib (311), and the height of the rib (311) is more than 80 mm.

6. The hood structure according to claim 2, wherein the air outlet (6) comprises a first air outlet (61) disposed at a left end of the top plate (4), a second air outlet (62) disposed at a right end of the top plate (4), a third air outlet (63) disposed at a front end of the top plate (4), and a fourth air outlet (64) disposed at a rear end of the top plate (4), wherein the blades (7) disposed at the first air outlet (61) and the second air outlet (62) are disposed along a width direction of the housing (1), and the blades (7) disposed at the third air outlet (63) and the fourth air outlet (64) are disposed along a length direction of the housing (1).

7. A hood structure according to claim 6, characterized in that the sum of the air intake areas of the first outlet (61) and the second outlet (62) is S1, the sum of the air intake areas of the third outlet (63) and the fourth outlet (64) is S2, the area of the air intake (31) is S3, and S1+ S2 is greater than a times of S3, where a is 1.4-1.6.

8. The hood structure according to any one of claims 1-7, wherein a flow guiding structure (72) is disposed at an end of the vane (7) close to the inlet (31), and the flow guiding structure (72) is configured to guide the gas flowing in from the inlet (31) to the outlet (6).

9. A hood structure according to any of claims 2-7, characterized in that a rain shield (71) is arranged at the upper end of the blades (7) near the roof (4).

10. A hood structure according to claim 9, characterized in that said rain shield (71) comprises a rain shield, said rain shield being inclined towards the top plate (4) from the end near said blades (7) to the end far from said blades (7).