CN111288191B

CN111288191B - Check valve for range hood and range hood with check valve

Info

Publication number: CN111288191B
Application number: CN202010107226.7A
Authority: CN
Inventors: 魏喜明; 何新奎; 马世涛; 罗力; 蒋济武; 霍星凯; 陈爱民
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2022-02-25
Anticipated expiration: 2040-02-21
Also published as: CN111288191A

Abstract

The invention discloses a check valve for a range hood and a range hood with the same, wherein the check valve for the range hood comprises: the range hood comprises a body, a hood body and a hood body, wherein the body comprises a sleeve part and a mounting part which are connected with each other, and the mounting part is used for being connected with a smoke exhaust port of the range hood; and a silencing structure provided inside the sleeve portion. The check valve is provided with the silencing structure, so that when the gas discharged by the range hood passes through the check valve, the noise generated by gas flowing is reduced through the silencing structure, and the effects of sound attenuation and noise reduction are achieved.

Description

Check valve for range hood and range hood with check valve

Technical Field

The invention relates to the technical field of vibration noise of range hoods, in particular to a check valve for a range hood and the range hood with the check valve.

Background

In the related art, the noise of the range hood is a problem existing in the use process of the range hood all the time, in the prior art, the problem of the abnormal noise is solved by designing the range hood or the fan body, however, when the range hood exhausts, the noise generated by exhausting becomes a main noise source under the use condition of a user.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a check valve for a range hood, which has a noise reduction structure, so that when gas exhausted from the range hood passes through the check valve, the noise generated by the gas flow can be reduced by the noise reduction structure, thereby achieving the effects of reducing noise and noise.

Another object of the present invention is to provide a range hood having the above check valve for range hood.

According to a check valve for a range hood of an embodiment of the first aspect of the invention, the check valve for the range hood comprises: the range hood comprises a body, a hood body and a hood body, wherein the body comprises a sleeve part and a mounting part which are connected with each other, and the mounting part is used for being connected with a smoke exhaust port of the range hood; and a silencing structure provided inside the sleeve portion.

According to the check valve for the range hood, which is disclosed by the embodiment of the invention, the check valve is provided with the body and the silencing structure, the mounting part of the body can be connected with the smoke exhaust port of the range hood, so that the position of the whole structure is stabilized, the sleeve part of the body can stably mount the inside of the check valve with the silencing structure to prevent the silencing structure from being dislocated, and the silencing structure is arranged inside the body, so that when gas exhausted by the range hood passes through the check valve, the noise generated by gas flowing can be reduced, the effects of reducing noise and reducing noise are achieved, the check valve has the noise reduction function, and the use experience of a user is improved.

In addition, the check valve for the range hood according to the present invention may further have the following additional technical features:

in some embodiments of the present invention, the check valve for a range hood further comprises: an inner liner disposed within the body and defining a sound-attenuating cavity with the body, the sound-attenuating cavity configured as at least a portion of the sound-attenuating structure.

In some embodiments of the present invention, the inner lining plate is cylindrical, and the sound-deadening chamber is formed in a ring shape in cross section.

In some embodiments of the present invention, the inner lining plate is provided with a through hole for communicating the inner cavity of the inner lining plate and the sound-deadening cavity.

In some embodiments of the invention, the interior wall of the interior lining panel is roughened to form a roughened surface configured as at least a portion of the sound attenuating structure.

In some embodiments of the present invention, the sleeve portion and the mounting portion have a stepped surface therebetween, and the bottom of the inner liner plate is supported on the stepped surface.

In some embodiments of the present invention, the check valve for a range hood further comprises: the check valve plate is arranged in the inner lining plate in an openable and closable manner, and the inner cavity of the inner lining plate is closed when the check valve plate is closed; a stopper disposed between the inner liner plate and the sleeve and closing a cross section of the muffling chamber.

In some embodiments of the present invention, the check valve for a range hood further comprises: a sound-absorbing cotton provided inside the sleeve portion, the sound-absorbing cotton being configured as at least a part of the noise deadening structure.

In some embodiments of the invention, the sound-absorbing cotton is ring-shaped and disposed around an inner wall of the sleeve portion.

A range hood according to an embodiment of the second aspect of the invention comprises a non-return valve for a range hood according to an embodiment of the first aspect described above.

The range hood according to the embodiment of the second aspect of the invention comprises the check valve for the range hood. The check valve for the range hood according to the embodiment of the invention has the corresponding beneficial effects that the check valve for the range hood according to the embodiment of the invention has the advantages that the range hood with the check valve can reduce noise generated when gas flows by the through holes, the sound-absorbing cotton and other structures arranged on the check valve when the gas passes through the check valve in the process of discharging the oil smoke, so that the noise generated when the range hood is used can be further reduced, and the silencing effect of the range hood is better.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a top view of the body of a check valve of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the body of the check valve of the embodiment of the present invention;

FIG. 3 is a side view of the body of the non-return valve of the embodiment of the present invention;

FIG. 4 is a perspective view of the body of the non-return valve of the embodiment of the present invention;

FIG. 5 is a side view of an interior lining panel of an embodiment of the present invention;

FIG. 6 is a cross-sectional view of an interior lining panel of an embodiment of the present invention;

FIG. 7 is a top view of an inner liner plate according to an embodiment of the present invention;

FIG. 8 is a perspective view of an interior lining panel according to an embodiment of the present invention;

FIG. 9 is a top view of a check valve according to an embodiment of the present invention;

FIG. 10 is a cross-sectional view of a check valve according to an embodiment of the present invention;

FIG. 11 is a perspective view of a check valve according to an embodiment of the present invention;

FIG. 12 is a side view of the check valve plate of the embodiment of the present invention when closed;

FIG. 13 is a side view of the check valve plate of an embodiment of the present invention as it opens;

FIG. 14 is a top view of a check valve plate according to an embodiment of the present invention;

FIG. 15 is a perspective view of a check valve plate according to an embodiment of the present invention;

FIG. 16 is a cross-sectional view of a sound-absorbing cotton according to an embodiment of the present invention;

FIG. 17 is a plan view of a sound-absorbing cotton according to an embodiment of the present invention;

FIG. 18 is a perspective view of a sound-absorbing cotton according to an embodiment of the present invention;

fig. 19 is an exploded view of the structure of the check valve of the embodiment of the present invention.

Reference numerals:

a non-return valve 100;

a body 1; a sleeve portion 11; a mounting portion 12; a step surface 13;

a sound-deadening structure 2;

an inner lining plate 3; a sound-deadening chamber 31; a through hole 32;

a check valve plate 4; the sub-blades 41;

a stopper 5;

and sound absorption cotton 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "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 are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A non-return valve 100 for a range hood (not shown) according to an embodiment of the first aspect of the present invention will be described with reference to fig. 1 to 19.

As shown in fig. 1 to 19, a check valve 100 for a range hood includes: a body 1 and a sound-deadening structure 2.

As shown in fig. 1-4, the main body 1 includes a sleeve portion 11 and a mounting portion 12 connected to each other, and the mounting portion 12 is used for connecting to an exhaust port of the range hood.

As shown in fig. 5 to 18, the muffler structure 2 is provided inside the sleeve portion 11.

Specifically, the body 1 includes a mounting portion 12 and a sleeve portion 11, the mounting portion 12 can be connected with a smoke exhaust port of the range hood for stabilizing the position of the body 1, and the sleeve portion 11 is a barrel-shaped structure, so that the silencing structure 2 can be mounted inside the sleeve portion 11. The noise reduction structure 2 can reduce noise generated by gas discharged through the check valve 100 when the check valve 100 is used, thereby allowing the check valve 100 to have noise reduction and silencing effects.

According to the check valve 100 for the range hood provided by the embodiment of the invention, the check valve 100 is provided with the body 1 and the silencing structure 2, the mounting part 12 of the body 1 can be connected with the smoke exhaust port of the range hood, so that the position of the whole structure is stabilized, the sleeve part 11 of the body 1 can stably mount the silencing structure 2 inside the check valve 100 to prevent the silencing structure 2 from being dislocated, and the silencing structure 2 is arranged inside the body 1, so that when gas exhausted by the range hood passes through the check valve 100, the noise generated by gas flow can be reduced, the effects of reducing the noise and reducing the noise are achieved, the check valve 100 has the noise reduction function, and the use experience of a user is improved.

As shown in fig. 5 to 8, the check valve 100 for a range hood further includes an inner lining plate 3, the inner lining plate 3 is disposed in the body 1 and defines a sound-deadening chamber 31 with the body 1, and the sound-deadening chamber 31 is configured as at least a part of the sound-deadening structure 2.

Specifically, the inner lining plate 3 is installed inside the check valve 100, the inner lining plate 3 is installed inside the body 1, and a sound deadening chamber 31 is defined between the inner lining plate and the inside of the body 1, and the sound deadening chamber 31 is at least a part of the sound deadening structure 2, that is, the sound deadening chamber 31 itself may constitute the sound deadening structure 2, and of course, the sound deadening chamber 3 may also constitute the sound deadening structure 2 together with other structures.

Further, the inner liner 3 may be cylindrical, and the cross section of the sound-deadening chamber 31 may be formed in a ring shape. That is, the inner lining plate 3 has a cylindrical structure, and the muffler chamber 31 has an annular cross section. Thereby, the lining plate 3 is attached to the inside of the sleeve portion 11, and the silencing chamber 31 can be formed between the lining plate 3 and the main body 1. Therefore, the volume of the silencing cavity 31 can be effectively improved, and the silencing effect is improved.

Further, the inner liner 3 may not be cylindrical, but may be, for example, semi-circular arc-shaped, whereby the sound-deadening chamber 31 defined between it and the sleeve portion 11 may also be semi-circular arc-shaped, whereby the cost can be reduced.

As shown in fig. 5 to 8, the inner lining plate 3 is provided with a through hole 32 for communicating the inner cavity of the inner lining plate 3 with the sound-deadening chamber 31.

Specifically, be equipped with a plurality of equidistance distribution's through-hole 32 in interior welt 3, through-hole 32 are used for communicating interior welt 3's inner chamber and amortization chamber 31, and when having gas flow in check valve 100, gas can enter into the amortization intracavity through-hole 32 to fall and make an uproar in amortization chamber 31, thereby promote check valve 100's noise cancelling effect, reduce the noise that gas flow produced in check valve 100.

Further, the inner wall of the inner lining plate 3 is roughened to form a roughened surface, which may be configured as at least a part of the sound-deadening structure 2. In other words, since the inner wall of the lining plate 3 is roughened so that sound is transmitted through the sound wave, the inner wall of the lining plate 3 is roughened so that the sound wave can be reflected multiple times, and the gas noise generated when the gas passes through the inside of the check valve 100 can be reduced.

Optionally, the inner wall of the lining plate 3 is roughened, the inner wall of the lining plate 3 may be provided with irregular protrusions, or the inner wall may be provided with grooves, or the inner wall of the lining plate 3 may be provided with different textures to increase the roughness of the inner wall.

As shown in fig. 2 and 10, the sleeve portion 11 and the mounting portion 12 have a stepped surface 13 therebetween, and the bottom of the lining plate 3 is supported on the stepped surface 13.

Specifically, there is a stepped surface 13 between the sleeve portion 11 and the mounting portion 12, that is, the radial dimensions of the sleeve portion 11 and the mounting portion 12 are different, so that a stepped surface 13 is formed between the sleeve portion 11 and the mounting portion 12 due to the dimensional difference, and at the same time, the bottom of the lining plate 3 is supported on the stepped surface 13, that is, the stepped surface 13 can be abutted against the bottom of the lining plate 3, so that the position of the lining plate 3 can be defined, and the position of the lining plate 3 can be fixed, thereby preventing the lining plate 3 from being dislocated or slipping off during use.

As shown in fig. 12 to 15, the check valve 100 for a range hood further includes: a check valve plate 4 and a check 5.

Specifically, the check valve plate 4 is arranged inside the lining plate 3 in an openable and closable manner, and the inner cavity of the lining plate 3 is sealed when the check valve plate 4 is closed.

That is, as shown in fig. 12 to 15, the check valve sheet 4 has an opening and closing structure and can be opened and closed, so that the inner liner 3 can be opened and closed by opening and closing the check valve sheet 4, thereby opening and closing the inner passage of the check valve 100.

The sub-vane 41 as shown in fig. 12 to 15, the check valve sheet 4 is composed of two sub-vanes 41 that can rotate around the middle, that is, the check valve sheet 4 includes two sub-vanes 41 having the same shape, and the two sub-vanes 41 can pivot with each other, whereby the check valve sheet 4 has two states of opening and closing, and the sound deadening chamber 31 can be opened and closed.

Furthermore, the shape of the outer edge of the sub-blade 41 of the check valve plate 4 can be matched with the inner diameter of the inner lining plate 3, so that the check valve plate 4 can seal the silencing cavity 31 when the range hood discharges smoke, and the smoke is prevented from flowing backwards.

Therefore, when the check valve plate 4 is opened, the inner cavity of the lining plate 3 can be sealed, and the smoke exhausted by the check valve 100 is prevented from flowing backwards into the check valve 100; when the check valve plate 4 is relatively closed, the outlet of the inner cavity of the check valve 3 can be opened, so that the smoke can be discharged outwards.

As shown in fig. 10, the stopper 5 is provided between the inner lining plate 3 and the sleeve portion 11, and closes the cross section of the sound-deadening chamber 31. That is, the stopper 5 is disposed around the outer wall of the inner lining 3, that is, the stopper 5 is an annular structure surrounding the outer part of the inner lining 3, and the cross section of the sound absorbing cavity 31 can be closed, so that a closed space is formed between the stopper 5 and the sound absorbing cavity 31, and smoke is prevented from leaking out of the sound absorbing cavity 31, or external smoke flows backwards through the sound absorbing cavity 31.

As shown in fig. 16 to 18, the check valve 100 for a range hood further includes: and sound absorption cotton 6. The sound absorbing cotton 6 is provided inside the sleeve portion 11, and the sound absorbing cotton 6 is configured as at least a part of the noise deadening structure 2.

Further, the sound-absorbing cotton 6 is annular and disposed around the inner wall of the sleeve portion 11.

Specifically, the sound absorbing cotton 6 is at least a part of the noise reduction structure 2, the sound absorbing cotton 6 is provided inside the sleeve portion 11, and the sound absorbing cotton 6 is provided around the inner wall of the sleeve portion 11, whereby the sound absorbing cotton 6 is positioned between the inner lining 3 and the sleeve portion 11, and the position of the sound absorbing cotton 6 can be limited by the provision of the stopper 5, thereby preventing the position of the sound absorbing cotton 6 from slipping.

Optionally, the sound-absorbing cotton 6 may be glass fiber sound-absorbing cotton or polyester fiber sound-absorbing cotton.

A range hood according to a second aspect of the embodiment of the invention is as follows.

The range hood according to the embodiment of the second aspect of the invention comprises the check valve 100 for the range hood. Because the check valve 100 for the range hood according to the embodiment of the present invention is provided, the check valve 100 for the range hood according to the embodiment of the present invention has corresponding beneficial effects, that is, the range hood with the check valve 100 can reduce noise generated when gas flows by the structure of the through hole 32 and the sound absorbing cotton 6 provided on the check valve 100 when the gas passes through the check valve 100 in the process of discharging the oil smoke, so that the noise generated when the gas flows can be further reduced, and the silencing effect of the range hood is better.

Of course, the present invention is not limited thereto, and the check valve 100 according to the embodiment of the present invention perfectly combines the smoke backflow prevention function and the noise reduction function of the check valve 100, has the function of reducing noise generated by gas passing through the inside of the check valve 100 while preventing smoke backflow, and maximally saves design space and cost, and is very convenient to assemble and disassemble.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 do not necessarily 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.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A check valve for a range hood, comprising:

the range hood comprises a body, a hood body and a hood body, wherein the body comprises a sleeve part and a mounting part which are connected with each other, and the mounting part is used for being connected with a smoke exhaust port of the range hood;

a silencing structure provided inside the sleeve portion;

the inner lining plate is arranged in the body and defines a silencing cavity with the body;

the check valve plate, the check valve plate comprises two can be around middle part pivoted sub-blades, two can pivot each other between the sub-blade, the check valve plate can open and shut locate inside the interior bushing plate, seal when the check valve plate is closed the inner chamber of interior bushing plate.

2. The check valve for a range hood of claim 1, wherein the sound-attenuating chamber is configured as at least a portion of the sound-attenuating structure.

3. The check valve for a range hood according to claim 2, wherein the inner lining plate is cylindrical, and the cross section of the muffling chamber is formed in a ring shape.

4. The check valve for a range hood according to claim 3, wherein the inner lining plate is provided with a through hole for communicating the inner cavity of the inner lining plate with the silencing cavity.

5. The check valve for a range hood according to claim 4, wherein an inner wall of the inner liner plate is roughened to form a roughened surface, the roughened surface being configured as at least a part of the noise attenuating structure.

6. The check valve for a range hood according to claim 2, wherein a stepped surface is provided between the sleeve portion and the mounting portion, and a bottom of the inner liner plate is supported on the stepped surface.

7. The check valve for a range hood according to claim 3, further comprising:

a stopper provided between the inner lining plate and the sleeve portion and closing a cross section of the sound-deadening chamber.

8. The check valve for a range hood according to any one of claims 1 to 7, further comprising: a sound-absorbing cotton provided inside the sleeve portion, the sound-absorbing cotton being configured as at least a part of the noise deadening structure.

9. The check valve for a range hood according to claim 8, wherein the sound-absorbing cotton is ring-shaped and disposed around an inner wall of the sleeve portion.

10. A range hood, characterized by comprising the check valve for a range hood according to any one of claims 1 to 9.