CN212005845U - Connecting flange and range hood - Google Patents

Abstract

The utility model discloses a range hood's flange and range hood relates to domestic appliance technical field, and this flange is used for connecting range hood's quick-witted case and collection petticoat pipe, and flange includes: the flange body that is the ring frame form and collection petticoat pipe connect the turn-ups, and the turn-ups is connected to collection petticoat pipe includes the internal connection turn-ups that extends towards the inboard from the flange body towards the external connection turn-ups that extends and from the flange body. The flange body comprises a case connecting part, and the case connecting part is connected to the outer side of the peripheral wall of the case bottom edge of the case so as to prevent oil from overflowing. The utility model discloses a flange and range hood can reduce range hood's noise at work and avoid the reduction of the amount of wind, and user experience is good.

Description

Connecting flange and range hood

Technical Field

The utility model relates to the technical field of household appliances, specifically, relate to a flange and range hood.

Background

The fume exhauster, also called as fume exhauster, is a kitchen electrical appliance for purifying kitchen environment, and can quickly exhaust away the waste burned by stove and the harmful fume produced in cooking process, and discharge the fume to outdoor, at the same time, condense and collect the fume, reduce pollution, purify air and possess safety protection action of gas-proof and explosion-proof. In general, a range hood product is usually improved by enhancing suction force in order to obtain a better oil smoke suction effect, but the cost is that larger noise is generated, the noise can interfere conversation, thinking, rest and sleep, even under a high-noise environment for a long time, hearing loss can be caused, and bad experience is easily brought to a user.

Disclosure of Invention

The utility model aims at providing a novel flange and range hood, this flange and range hood can reduce range hood's noise at work and avoid the reduction of the amount of wind, and user experience is good.

In order to achieve the above object, the utility model provides a range hood's flange for connect range hood's quick-witted case and collection petticoat pipe, flange includes:

the flange body is in a ring frame shape; and

the turn-ups is connected to collection petticoat pipe, collection petticoat pipe connects the turn-ups and includes the follow flange body is towards the outer joint turn-ups of outside extension and follow the flange body is towards the inboard in-connection turn-ups that extends.

Optionally, the connecting flange may be in a shape of a square frame, the outer connecting flange includes a first outer connecting flange and a second outer connecting flange that are spaced apart from each other in parallel along a first direction, and the inner connecting flange includes a first inner connecting flange and a second inner connecting flange that are spaced apart from each other in parallel along a second direction.

Furthermore, the inner connecting flanging can be used for supporting the bottom edge of the case.

Further, the connecting flange may be a square frame, and the first direction is perpendicular to the second direction.

Alternatively, the connecting flange may be an integrally formed part.

Optionally, the flange body includes a case connection portion, and the case connection portion may be connected to an outer side of a circumferential wall of a case bottom edge of the case to prevent oil from overflowing.

Correspondingly, the invention also comprises a range hood, wherein the range hood comprises a case, a fume collecting hood and the connecting flange, and the connecting flange is connected with the fume collecting hood through the fume collecting hood connecting flanging.

Optionally, the smoke collecting cover is provided with a smoke collecting cover smoke outlet, the smoke collecting cover connecting flanging is connected to the peripheral part of the smoke collecting cover smoke outlet, and the smoke collecting cover connecting flanging can be located in the orifice outline of the smoke collecting cover smoke outlet by surrounding the orifice outline of the limited flange hole.

Further, a case smoke inlet is formed in the bottom of the case, and the relationship between the smoke inlet area S1 of the case smoke inlet and the hole area S2 of the flange hole can satisfy: S2/S1 is more than or equal to 85 percent.

Still further, the inner connecting cuff may extend inwardly by a width of not more than 12 mm.

The connecting flange of the range hood of the utility model is used for connecting the machine case and the smoke collecting hood of the range hood, the connecting flange comprises a flange body and a smoke collecting hood connecting flange, the flange body is in a ring frame shape, and the peripheral wall of the machine case bottom edge of the machine case can be arranged at the inner side of the flange body to prevent oil from overflowing; the turn-ups is connected to collection petticoat pipe is used for being connected with collection petticoat pipe and including the outer joint turn-ups that extends towards the outside from the flange body and the inner connection turn-ups that extends towards the inboard from the flange body, so, the inner connection turn-ups can be used to the quick-witted bottom edge of bearing machine case, the outer joint turn-ups is located the outside of the perisporium that the quick-witted bottom edge of machine case was followed, can avoid the outer joint turn-ups to shelter from the air inlet area of quick-witted case, the air inlet area of range hood has been increased, the windage has been reduced, can reduce range hood's noise, and can avoid the reduction.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural diagram of a range hood in the prior art;

FIG. 2 is a schematic structural view of the enclosure and the connection flange of FIG. 1;

fig. 3 shows a schematic structural view of a connecting flange according to an embodiment of the present invention;

fig. 4 shows an exploded view of the installation of a range hood according to an embodiment of the present invention;

FIG. 5 is a bottom view of the enclosure of FIG. 4 with the attachment flange attached;

fig. 6 is a cross-sectional view of a range hood according to an embodiment of the present invention;

fig. 7 is a partially enlarged schematic view of fig. 6.

Description of the reference numerals

1 connecting flange 11 flange body

12 external connection flange 13 internal connection flange

14 flange hole 2 chassis

Smoke collecting hood 3 of 21 machine box smoke inlet

Smoke outlet of 31 smoke collecting hood

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present invention.

The following description is made with reference to the drawings and is in accordance with the utility model discloses a flange and range hood's air inlet area is big, the windage is little, can reduce range hood's noise at work, and can avoid the reduction of the amount of wind, and it is effectual to inhale oil smoke, and user experience is good.

Referring to the connection flange of fig. 3 to 7, the connection flange 1 is used for connecting the case 2 and the smoke collection cover 3 of the range hood, and includes a flange body 11 in a ring frame shape and a smoke collection cover connection flange, and the smoke collection cover connection flange includes an outer connection flange 12 extending from the flange body 11 toward the outside and an inner connection flange 13 extending from the flange body 11 toward the inside. In this case, the position relatively close to the center of the connection flange 1 is defined as "inner" and the position relatively far from the center of the connection flange 1 is defined as "outer".

As shown in fig. 1 and 2, the existing european style cigarette making machine comprises a machine case 2, a smoke collecting hood 3, a connecting flange 1, a fan system and the like, wherein the fan system is arranged in the machine case 2, the machine case 2 is connected with the smoke collecting hood 3 through the connecting flange 1, and the machine case 2, the smoke collecting hood 3 and the connecting flange 1 are connected in a riveting mode, so that a cigarette making machine air duct system is formed. In general, a range hood product is usually improved by enhancing suction force in order to obtain a better oil smoke suction effect, but the cost is that larger noise is generated, the noise can interfere conversation, thinking, rest and sleep, even under a high-noise environment for a long time, hearing loss can be caused, and bad experience is easily brought to a user.

To the above-mentioned range hood of strong suction produces the pain point of great noise easily, the inventor carries out the repetition test, observe, and discover after carrying out careful analysis to many factors, european style range hood's quick-witted case 2 and collection petticoat pipe 3 are through the connection of detaining in the square flange 1, inlay in flange 1 along the perisporium at the end of quick-witted case 2 promptly, because the inboard horizontal turn-ups of square flange 1 have sheltered from the air inlet area of quick-witted case 2, lead to the air inlet area not enough, the amount of wind reduces, the windage increases, the noise also has corresponding rising. As shown in fig. 2, the air inlet side of the chassis 2 is riveted to the connecting flange 1, and the horizontal flanges on the left and right sides of the connecting flange 1 shield the air inlet area of the chassis 2.

In order to solve the pain point, the connecting flange 1 of the utility model comprises a flange body 11 and a smoke collecting hood connecting flange, the flange body 11 is in a ring frame shape, and the peripheral wall of the chassis bottom edge of the chassis 2 can be arranged at the inner side of the flange body 11 to prevent the oil from overflowing; the turn-ups is connected to collection petticoat pipe is used for being connected with collection petticoat pipe 3 and including the outer connection turn-ups 12 that extends towards the outside from flange body 11 and the inner connection turn-ups 13 that extends towards the inboard from flange body 11, so, inner connection turn-ups 13 can be used to the quick-witted bottom edge of bearing machine case 2, outer connection turn-ups 12 is located the outside of the perisporium that quick-witted bottom edge of quick-witted case 2 was followed, can avoid outer connection turn-ups 12 to shelter from the air inlet area of quick-witted case 2, the air inlet area of range hood has been increased, the windage resistance has been reduced, can reduce range hood's noise, and can.

Alternatively, the connecting flange 1 may be in a shape of a four-sided frame, the outer connecting flange 12 includes a first outer connecting flange and a second outer connecting flange which are spaced apart from each other in parallel in a first direction, and the inner connecting flange 13 includes a first inner connecting flange and a second inner connecting flange which are spaced apart from each other in parallel in a second direction. As shown in fig. 3 and 4, the first outward connecting flange and the second outward connecting flange are a left horizontal outward flange and a right horizontal outward flange, respectively, and the first inward connecting flange and the second inward connecting flange are a front horizontal inward flange and a rear horizontal inward flange, respectively. So, establish first outer connection turn-ups and second outer connection turn-ups into outside turn-ups, avoid two turn-ups to shelter from the air inlet area of quick-witted case 2, increase range hood's air inlet area, reduce the windage, reduce range hood's noise at work, avoid the reduction of the amount of wind, improve range hood's work efficiency. Of course, the shape of the connecting square flange 1 is not limited to be a quadrangular frame, and may be a polygonal frame, for example, and the outer connecting flange 12 or the inner connecting flange 13 may further include a plurality of outer flanges or inner flanges, etc., and the present invention is not limited thereto.

Optionally, if the accumulated oil on the inner peripheral wall of the chassis 2 overflows to the outer side of the connecting flange 1, the interior of the range hood is troublesome to clean and difficult to clean, bacteria are easily bred and peculiar smell is generated for a long time, which is not favorable for the cleanness and sanitation of the range hood. Therefore, the flange body 11 includes a case connection portion, and the connection flange 1 is connected to the outer side of the circumferential wall of the case bottom edge of the case 2 through the case connection portion, so that the oil accumulated on the inner circumferential wall of the case 2 can be prevented from overflowing to the outer connection flange 12 of the connection flange.

Furthermore, the connecting flange 1 is connected with the outer side of the peripheral wall of the bottom edge of the case 2 through the case connecting part, and the bottom edge of the case 2 can also be supported on the inner connecting flange 13, so that the mounting structure of the case 2 can be more stable and reliable.

Furthermore, in order to make the structure of the range hood more reasonable and beautiful and to make the air intake area of the cabinet 2 as large as possible, as shown in fig. 3 and 4, the connecting flange 1 may be a square frame, and the first direction is perpendicular to the second direction. Of course, first direction also can not be perpendicular to the second direction, and first direction forms certain contained angle with the second direction promptly, and flange 1 also can be parallelogram etc. the utility model discloses be not limited to this.

Alternatively, in order to make the structure of the connecting flange 1 simpler and to reduce production and manufacturing costs, the connecting flange 1 may be an integrally formed part. Of course, the connecting flange 1 may also be a split-type formed part, and the present invention is not limited thereto.

Correspondingly, as shown in fig. 4, the utility model discloses still include a range hood, this range hood includes quick-witted case 2, collection petticoat pipe 3 and foretell flange 1, and flange 1 connects turn-ups through collection petticoat pipe and connects collection petticoat pipe 3. Wherein, range hood still includes the fan system, and the fan system is located in quick-witted case 2, and quick-witted case 2 is connected with collection petticoat pipe 3 through flange 1's collection petticoat pipe connection turn-ups, and quick-witted case 2, collection petticoat pipe 3 are connected through the riveting mode with flange 1 to form cigarette machine air duct system.

Specifically, as shown in fig. 3 and 4, the flange body 11 is in an approximate quadrilateral frame shape, and the flange body 11 includes a chassis connecting portion, where the chassis connecting portion includes a first frame wall, a second frame wall, a third frame wall, and a fourth frame wall that surround and form four borders. The bottom edges of the first frame wall and the third frame wall extend inwards to form a first inner connecting flanging and a second inner connecting flanging, and the bottom edges of the second frame wall and the fourth frame wall extend outwards to form a first outer connecting flanging and a second outer connecting flanging. The connecting flange 1 may be riveted to the outer side of the peripheral wall of the bottom edge of the chassis 2 through at least the first frame wall and the third frame wall, or the connecting flange 1 may be riveted to the outer side of the peripheral wall of the bottom edge of the chassis 2 through the first frame wall, the second frame wall, the third frame wall, and the fourth frame wall. As shown in fig. 6 and 7, the peripheral wall of the bottom edge of the casing 2 is mounted inside the frame wall of the flange body 11, so that the oil is prevented from overflowing. In addition, the inner connecting flange 13 is used for supporting the bottom edge of the chassis 2, and the outer connecting flange 12 and the inner connecting flange 13 are respectively riveted with the smoke collecting hood 3.

Alternatively, the smoke collecting hood 3 may be provided with a smoke collecting hood outlet 31, the smoke collecting hood connecting flange being connected to a peripheral portion of the smoke collecting hood outlet 31, and flange holes 14 being defined by inner side edges of the first inner connecting flange, the second inner connecting flange, the first outer connecting flange, and the second outer connecting flange. In order to avoid the shielding of the peripheral edge part of the smoke collecting cover smoke outlet 31 on the air inlet area of the case 2, the smoke collecting cover connecting flanging is positioned in the orifice outline of the smoke collecting cover smoke outlet 31 around the limited orifice outline of the flange hole 14, so that the wind resistance can be reduced, the working noise of the range hood can be reduced, and the reduction of the wind volume can be avoided.

Alternatively, the bottom of the chassis 2 may be provided with the chassis smoke inlet 21, and the relationship between the smoke inlet area S1 of the chassis smoke inlet 21 and the hole area S2 of the flange hole 14 satisfies: S2/S1 is more than or equal to 85%, or the width of the inner connecting flanging 13 extending towards the inner side can be not more than 12mm, so that the larger the ratio of S2/S1 is, or the smaller the width of the inner connecting flanging 13 extending towards the inner side is, the less the inner connecting flanging 13 shields the air inlet area of the case 2, the smaller the wind resistance is, and the lower the working noise of the range hood is. As shown in fig. 3 to 5, the inner connecting flange 13 is located inside the smoke inlet 21 of the chassis, and the smaller the width of the inner connecting flange 13 extending inward, the less the inner connecting flange 13 shields the air inlet area of the chassis 2; further, the smaller the width of the inward extension of the inner connecting flange 13, the larger the hole area S2 of the flange hole 14, and the larger the ratio S2/S1, the less the wind entering area of the cabinet 2 is blocked.

To sum up, the utility model discloses a flange and range hood's air inlet area is big, the windage is little, can reduce range hood's noise at work, and can avoid the reduction of the amount of wind, and it is effectual to inhale oil smoke, and user experience is good.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. The utility model provides a flange of range hood for connect range hood's quick-witted case and collection petticoat pipe, its characterized in that, flange includes:

the flange body is in a ring frame shape; and

the turn-ups is connected to collection petticoat pipe, collection petticoat pipe connects the turn-ups and includes the follow flange body is towards the outer joint turn-ups of outside extension and follow the flange body is towards the inboard in-connection turn-ups that extends.

2. The flange according to claim 1, wherein the flange is in the shape of a square frame, the outer flanges comprise first outer flanges and second outer flanges spaced apart from each other in parallel in a first direction, and the inner flanges comprise first inner flanges and second inner flanges spaced apart from each other in parallel in a second direction.

3. The connecting flange according to claim 2, wherein the inner connecting flange is used for supporting a bottom edge of the chassis.

4. The attachment flange of claim 2 wherein said attachment flange is a right four sided frame and said first direction is perpendicular to said second direction.

5. The connecting flange according to claim 1, wherein the connecting flange is an integrally formed piece.

6. The connecting flange according to any one of claims 1 to 5, wherein the flange body includes a case connecting portion connected to an outer side of a peripheral wall of a bottom edge of a case of the case to prevent oil from overflowing.

7. A range hood is characterized by comprising a machine case, a smoke collecting hood and a connecting flange according to any one of claims 1 to 6, wherein the connecting flange is connected with the smoke collecting hood through the smoke collecting hood connecting flanging.

8. The range hood of claim 7 wherein the fume collecting hood is provided with a fume collecting hood outlet, the fume collecting hood connecting flange is connected to a peripheral portion of the fume collecting hood outlet, and the fume collecting hood connecting flange surrounds an orifice contour of the defined flange hole and is located within the orifice contour of the fume collecting hood outlet.

9. The range hood of claim 8, wherein the bottom of the housing is provided with a housing smoke inlet, and a relationship between a smoke inlet area S1 of the housing smoke inlet and a hole area S2 of the flange hole satisfies: S2/S1 is more than or equal to 85 percent.

10. The range hood of claim 7 wherein the inner connecting flange extends inwardly no more than 12mm wide.

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