CN218844681U

CN218844681U - Volute assembly and range hood

Info

Publication number: CN218844681U
Application number: CN202222724278.6U
Authority: CN
Inventors: 卢楚鹏; 周骏尧
Original assignee: Guangdong Vanward New Electric Co Ltd
Current assignee: Guangdong Vanward New Electric Co Ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-04-11
Anticipated expiration: 2032-10-14

Abstract

The utility model relates to a spiral case subassembly, including the spiral case and install in the shutoff piece of spiral case, the oil leak hole has been seted up to the bottom of this spiral case, and shutoff piece movably locates the spiral case, and the shutoff piece is configured to be the shutoff oil leak hole under the spiral case subassembly is in operating condition to and open the oil leak hole under the spiral case subassembly is in non-operating condition. The utility model discloses still relate to a range hood, including collection petticoat pipe and spiral case subassembly, spiral case subassembly install in the collection petticoat pipe. The utility model discloses can prevent that the air in the spiral case from leaking through the oil leak hole, the volume of airing exhaust and air exhaust efficient, and can avoid the air to leak the torrent of formation and reduce the wind noise outward.

Description

Volute assembly and range hood

Technical Field

The utility model relates to range hood, especially relate to a spiral case subassembly and range hood.

Background

With the development of economy and the progress of society, people have higher and higher requirements on life quality, and the range hood as a kitchen appliance for purifying kitchen air has gone into every family; the kitchen ventilator is arranged above a kitchen stove, can rapidly pump away waste burned by the stove and oil smoke harmful to human bodies generated in the cooking process, and exhaust the waste and the oil smoke out of a room, so that pollution is reduced, and air is purified; the conventional range hood generally adopts a hole opening mode, so that oil dirt in the volute flows out of the volute and is finally gathered in the oil cup.

The volute is an important component of the range hood, and the conventional volute structure refers to fig. 1 and generally comprises a volute front plate 20, a volute surrounding plate 10 and a volute rear plate 30; further, an oil leakage hole 102 is generally provided on the volute shroud 10; when the motor drives the impeller 70 to rotate, the air flows along the volute enclosing plate 10 and is finally discharged out of the volute, but the oil leakage hole 102 is communicated with the outside atmosphere during the whole operation process, so that the following effects are caused:

1. part of the air leaks out through the oil leakage holes 102, so that the air exhaust amount and the air exhaust efficiency are reduced;

2. when the air flow flows through the oil leakage hole 102, a small part of air leaks out due to the fact that the oil leakage hole 102 damages the wall surface of the volute, turbulence is formed, and wind noise is increased.

SUMMERY OF THE UTILITY MODEL

One of the technical problems solved by the present invention is to provide a spiral case assembly, which can prevent the air in the spiral case from leaking through the oil leakage hole, and is favorable to improving the air exhaust amount and the air exhaust efficiency, and effectively avoid the air from leaking to form turbulence to reduce the wind noise.

The second technical problem solved by the present invention is to provide a range hood.

The first technical problem is solved by the following technical scheme:

a volute component comprises a volute and a plugging piece installed on the volute, wherein an oil leakage hole is formed in the bottom of the volute, the plugging piece is movably arranged on the volute, the plugging piece is configured to plug the oil leakage hole when the volute component is in a working state, and the oil leakage hole is opened when the volute component is in a non-working state.

Compared with the prior art, the volute component has the beneficial effects that: the oil leakage hole is formed in the bottom of the volute, the plugging piece can move at the oil leakage hole, the plugging piece is configured to plug the oil leakage hole when the volute component is in a working state, and the oil leakage hole is opened when the volute component is in a non-working state, so that air in the volute can be prevented from leaking out through the oil leakage hole, the air exhaust amount and the air exhaust efficiency can be improved, and turbulent flow formed by air leakage can be effectively avoided, and the air noise is reduced. Along with the activity of shutoff piece, shutoff piece and the at least partial separation of spiral case bounding wall are so that the oil leak hole exposes, and the oil leak hole is opened this moment and makes the interior oily dirt of spiral case accessible oil leak hole outflow outside.

In one embodiment, the blocking piece is of a plate structure, the blocking piece is connected to the volute casing through a rotating connection structure so as to be rotatably arranged at the oil leakage hole, and when the blocking piece is located at the blocking position, the blocking piece is at least partially located outside the oil leakage hole.

In one embodiment, the rotary connection structure comprises a rotating shaft and at least one rotating shaft mounting part, the rotating shaft mounting part is arranged on the outer surface of the volute, the rotating shaft is rotatably connected to the rotating shaft mounting part, and the blocking piece is fixed on the rotating shaft.

In one embodiment, the rotating shaft is connected to the surface of the blocking piece and divides the blocking piece into a first side and a second side, when the volute component is in a non-working state, the blocking piece is arranged in an inclined mode, the first side extends into the volute, the second side extends out of the volute in a reverse direction relative to the first side, and when the volute component is in a working state, the rotating direction of the blocking piece is opposite to the direction of an air flow formed at an oil leakage hole in the volute in the working state of the volute component.

In one embodiment, in the non-operating state, the blocking piece is configured such that the second side thereof always has a tendency to rotate downward to open the oil leakage hole.

In one embodiment, the plugging piece comprises a plate body and a limiting part arranged on the plate body, and when the plugging piece is located at a plugging position, the limiting part is abutted to the volute.

In one embodiment, the rotating shaft is disposed in the middle of the plate body so that the first side and the second side are balanced with each other, and the limiting portion is disposed on the second side.

In one embodiment, the edge of the oil leakage hole extends inwards and radially to form a limiting part, and the plugging piece is provided with a groove which is abutted against the limiting part.

In one embodiment, the two rotating shaft mounting parts are arranged, the two rotating shaft mounting parts are respectively arranged at two opposite sides of the oil leakage hole, and the two rotating shafts are respectively and rotatably arranged at two sides of the rotating shaft along the axial direction.

The second technical problem is solved by the following technical solutions:

the utility model provides a range hood, includes collection petticoat pipe and spiral case subassembly, spiral case subassembly install in the collection petticoat pipe.

Compared with the background art, the range hood has the beneficial effects that: the volute component is installed in the smoke collecting hood, so that oil collected by the smoke collecting hood can enter the volute component, the plugging piece can move at an oil leakage hole at the bottom of the volute, the plugging piece is configured to plug the oil leakage hole when the volute component is in a working state, and the oil leakage hole is opened when the volute component is in a non-working state, so that air in the volute can be prevented from leaking out through the oil leakage hole, the improvement of the air exhaust amount and the air exhaust efficiency is facilitated, and the air can be effectively prevented from leaking out to form turbulent flow, so that the wind noise is reduced. Along with the movement of the plugging piece, the oil leakage hole can be opened so that oil dirt in the volute can flow out of the outside through the oil leakage hole.

Drawings

Fig. 1 is a schematic structural diagram of a range hood in the prior art;

fig. 2 is a schematic structural view of the range hood in embodiment 1 of the present invention when the oil leak hole is in an open state;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic cross-sectional view of FIG. 2;

FIG. 5 is an enlarged view of portion B of FIG. 4;

fig. 6 is a schematic structural view of the range hood in embodiment 1 of the present invention when the oil leakage hole is in a closed state;

FIG. 7 is a schematic cross-sectional view of FIG. 6;

fig. 8 is an enlarged view of portion C of fig. 7.

Description of reference numerals: 10. a volute casing coaming; 101. a blocking member; 1011. a first side; 1012. a second side; 102. an oil leak hole; 103. a rotating shaft; 104. a rotating shaft mounting member; 105. a limiting part; 106. a closure mounting member; 20. a volute front plate; 30. a volute back plate; 40. an air flow passage; 50. mounting holes; 60. an air outlet; 70. an impeller.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

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 to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the present application, it is to 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 meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

referring to fig. 1 to 8, a preferred embodiment of the present invention provides a range hood, which includes a fume collecting hood and a volute assembly, wherein the volute assembly is installed in the fume collecting hood, so that oil collected by the fume collecting hood can enter the volute assembly.

The volute assembly comprises a volute, specifically, the volute comprises a volute front plate 20, a volute rear plate 30 and an impeller 70, the volute front plate 20 and the volute rear plate 30 are symmetrically arranged, a volute surrounding plate 10 is respectively connected with the volute front plate 20 and the volute rear plate 30 to form an air flow channel 40, a mounting hole 50 and an air outlet 60 in a surrounding mode, an oil leakage hole 102 is communicated with the air outlet 60 and the mounting hole 50 through the air flow channel 40, and the impeller 70 is rotatably connected to the mounting hole 50.

In this embodiment, the volute assembly further includes a blocking piece 101 installed on the volute, the bottom of the volute enclosing plate 10 is provided with an oil leakage hole 102, the blocking piece 101 is rotatably disposed on the volute enclosing plate 10, and the blocking piece 101 is configured to block the oil leakage hole 102 when the volute assembly is in an operating state and open the oil leakage hole 102 when the volute assembly is in a non-operating state.

In this embodiment, when the impeller 70 rotates, the blocking piece 101 is rotated by an external force to abut against the volute casing enclosing plate 10 and cover the oil leakage hole 102, so that the oil leakage hole 102 is in a closed state; when the impeller 70 stops rotating, the blocking piece 101 can be reset to be at least partially separated from the volute casing enclosing plate 10 without external force, so that the oil leakage hole 102 is exposed and is in an open state.

In particular embodiments, the impeller 70 is driven by a motor to rotate within the mounting hole 50. When the impeller 70 rotates in the mounting hole 50, air enters the air flow channel 40 from the mounting hole 50, and flows along the inner wall of the volute enclosing plate 10 to push the blocking piece 101 to close the oil leakage hole 102, and the air is discharged out of the volute through the air outlet 60; when the impeller 70 stops rotating, the blocking member 101 automatically opens the oil leakage hole 102 under the action of gravity, and at this time, the oil in the air flow passage 40 can flow out of the volute through the oil leakage hole 102. Thus, when the oil dirt is effectively discharged, the oil leakage hole 102 can be effectively closed when the impeller 70 is started to prevent the air in the volute from leaking out through the oil leakage hole 102, which is beneficial to improving the air exhaust amount and the air exhaust efficiency, and can effectively avoid the turbulent flow formed by the air leakage so as to reduce the wind noise.

In this embodiment, the blocking piece 101 is a plate structure, the blocking piece 101 is connected to the scroll casing through a rotational connection structure so as to be rotatably disposed in the oil leakage hole 102, and when the blocking piece 101 is located at the blocking position, the blocking piece 101 is located at least partially outside the oil leakage hole 102. In the closed state, the rotation direction of the blocking piece 101 when the oil leakage hole 102 rotates through the rotary connecting structure is opposite to the flow direction of air inside the oil leakage hole 102; in the open state, the rotation direction of the blocking piece 101 when the oil leakage hole 102 rotates through the rotary connection structure is the same as the flow direction of the air inside the oil leakage hole 102. Thus, the blocking piece 101 can rotate counterclockwise under the action of the external force of the air flow in the air flow passage 40 to effectively close the oil leakage hole 102, and the blocking piece 101 can rotate and reset to automatically open the oil leakage hole 102 when not being influenced by the external force of the air flow. Therefore, when the oil stain is effectively discharged, the oil leakage hole 102 can be effectively closed when the impeller 70 is started, so that the air in the volute is prevented from leaking out through the oil leakage hole 102, the air exhaust amount and the air exhaust efficiency are favorably improved, and the air is effectively prevented from leaking out to form turbulent flow, so that the wind noise is reduced.

In this embodiment, the blocking piece 101 is rotatably connected to the inside of the oil leakage hole 102 at least partially through a rotating connection structure, so that one end of the blocking piece 101 extends into the air flow passage 40 to contact with the air flow, thereby facilitating the effective opening of the oil leakage hole 102.

In this embodiment, two rotating shaft mounting members 104 are provided, two of the rotating shaft mounting members 104 are respectively mounted on two opposite sides of the oil leakage hole 102, two sides of the rotating shaft 103 along the axial direction thereof are respectively rotatably mounted on the two rotating shaft mounting members 104, and the blocking member 101 is fixedly connected with the rotating shaft 103 through the blocking member mounting members 106. The blocking piece 101 is fixed on the rotating shaft 103 and at least partially rotates inside the oil leakage hole 102, so that the rotating shaft 103 is mounted on the outer surface of the volute enclosing plate 10 through two rotating shaft mounting pieces 104, which is beneficial to improving the stability of the mounting structure of the rotating shaft 103 and the volute enclosing plate 10 and is beneficial to smooth rotation of the rotating shaft 103, the blocking piece 101 is mounted on the rotating shaft 103 through the blocking piece mounting piece 106, so that the rotating shaft 103 can drive the blocking piece 101 to synchronously rotate, one part of the blocking piece 101 rotates inside the oil leakage hole 102 and can be in contact with the air flow in the air flow channel 40, the air flow can push the blocking piece 101 to rotate to be abutted against the inner wall of the volute enclosing plate 10, the other part of the blocking piece 101 synchronously rotates outside the oil leakage hole 102 to be abutted against the outer surface of the volute enclosing plate 10, and when the air flow in the air flow channel 40 is not enough to push the blocking piece 101 inside the oil leakage hole 102 to rotate, the blocking piece 101 resets to rotate and open the oil leakage hole 102.

In other embodiments, the number of the shaft mounts 104 may be set according to actual needs.

In this embodiment, the rotating shaft 103 is connected to the surface of the blocking piece 101 and divides the blocking piece 101 into a first side 1011 and a second side 1012, when the scroll casing assembly is in a non-operating state, the blocking piece 101 is disposed obliquely, the first side 1011 extends into the scroll casing, the second side 1012 extends reversely to the outside of the scroll casing relative to the first side 1011, and when the scroll casing assembly is in an operating state, the rotating direction of the blocking piece 101 is opposite to the direction of the air flow formed at the oil leakage hole 102 in the scroll casing in the operating state of the scroll casing assembly. Therefore, when the volute assembly works in a natural state, the oil leakage hole 102 can be automatically closed; when the volute assembly is in a non-working state, the plugging piece 101 can automatically open the oil leakage hole 102 under the action of gravity.

In this embodiment, the blocking member 101 always keeps the second side 1012 tending to rotate downward to open the oil leakage hole 102 when the volute assembly is in the non-operating state. Thus, the second side 1012 of the blocking member 101 always rotates downward when the volute assembly is in the non-operating state, so as to ensure that the volute assembly automatically opens the oil leakage hole 102 in the non-operating state.

In this embodiment, the blocking piece 101 includes a plate body and a limiting portion 105 disposed on the plate body, and when the blocking piece 101 is located at the blocking position, the limiting portion 105 abuts against the scroll casing to block the oil leakage hole 102, so that blocking of the oil leakage hole 102 can be better controlled.

In other embodiments, the plate body and the position-limiting portion 105 are of a unitary structure.

In this embodiment, the rotation shaft is disposed in the middle of the plate body to balance the first side 1011 and the second side 1012, the limiting portion 105 is disposed on the second side 1012, which is convenient to implement, and the limiting portion is disposed on the second side 1012 to ensure that the blocking piece 101 always keeps the second side 1012 rotating downward to open the oil leakage hole 102 when the volute assembly is in a non-operating state while being limited.

Specifically, in the closed state, the limiting portion 105 abuts against the other side of the oil leakage hole 102 and is located at the highest point of the rotation track; in the open state, the limiting portion 105 is separated from the other side of the oil leakage hole 102 and is at the lowest point of the rotation track. Therefore, the limit part 105 can be used for limiting, when the range hood works, the motor drives the impeller 70 to rotate, the air flow flows on the inner wall of the volute casing wall plate 10, the air flow pushes the blocking piece 101 at the oil leakage hole 102 to rotate until the limit part 105 on the blocking piece 101 is contacted with the volute casing wall plate 10, and at the moment, the volute casing wall plate 10 covers the oil leakage hole 102 to close the oil leakage hole. When the range hood stops working, the impeller 70 stops rotating, the air in the air flow passage 40 stops flowing, the blocking piece 101 restores to the original state due to the action of gravity (the part is at the lowest point because the end of the limiting part 105 is heavier), at this time, the oil leakage hole 102 is reopened, and the oil stain in the air flow passage 40 can be discharged to the outside of the volute through the oil leakage hole 102. So that the oil leakage hole 102 can be automatically opened to ensure the pollution discharge function of the oil leakage hole 102.

In this embodiment, the oil leakage hole 102 is opened at the lowest point of the volute enclosing plate 10, so that the oil in the air flow passage 40 can be completely discharged from the oil leakage hole 102 to the outside of the volute under the action of gravity.

In other embodiments (not shown in the figures), the edge of the oil leakage hole 102 extends radially inward to form a limiting portion, the blocking piece 101 is provided with a groove abutting against the limiting portion, and when the blocking piece 101 is located at the blocking position, the limiting portion abuts against the groove to block the oil leakage hole 102.

In this embodiment, the shape of the blocking piece 101 is matched with that of the oil leakage hole 102, so that the blocking piece 101 can effectively cover the oil leakage hole 102 to close the oil leakage hole. Specifically, in the present embodiment, the oil leakage hole 102 is a square hole, and the blocking member 101 is a square plate. Of course, in other embodiments, the oil leakage hole 102 may also be a circular hole, and the blocking member 101 may be a circular plate.

In this embodiment, the area of the blocking piece 101 is larger than that of the oil leakage hole 102, which is beneficial for the blocking piece 101 to better cover the oil leakage hole 102 and improve the sealing performance.

In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The detailed description of the above embodiments only expresses several embodiments of the present invention, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A volute assembly is characterized by comprising a volute and a blocking piece (101) installed on the volute, wherein an oil leakage hole (102) is formed in the bottom of the volute, the blocking piece (101) is movably arranged on the volute, and the blocking piece (101) is configured to block the oil leakage hole (102) when the volute assembly is in an operating state and open the oil leakage hole (102) when the volute assembly is in a non-operating state.

2. The volute assembly of claim 1, wherein: the blocking piece (101) is of a plate structure, the blocking piece (101) is connected to the volute through a rotating connecting structure and is rotatably arranged at the oil leakage hole (102), and when the blocking piece (101) is located at a blocking position, at least part of the blocking piece (101) is located on the outer side of the oil leakage hole (102).

3. The volute assembly of claim 2, wherein: the rotating connection structure comprises a rotating shaft (103) and at least one rotating shaft mounting piece (104), the rotating shaft mounting piece (104) is arranged on the outer surface of the volute, the rotating shaft (103) is rotatably connected to the rotating shaft mounting piece (104), and the plugging piece (101) is fixed on the rotating shaft (103).

4. The volute assembly of claim 3, wherein: the rotating shaft (103) is connected to the surface of the blocking piece (101) and divides the blocking piece (101) into a first side (1011) and a second side (1012), the volute component is in a non-working state, the blocking piece (101) is obliquely arranged, the first side (1011) extends into the volute, the second side (1012) is opposite to the first side (1011) and reversely extends out of the volute, the volute component is in a working state, and the rotating direction of the blocking piece (101) is opposite to the air flow direction formed by the oil leakage hole (102) in the volute in the working state of the volute component.

5. The volute assembly of claim 4, wherein: in the non-working state, the blocking piece (101) is configured to always have the tendency of rotating downwards on the second side (1012) thereof so as to open the oil leakage hole (102).

6. The volute assembly of claim 5, wherein: the plugging piece (101) comprises a plate body and a limiting part (105) arranged on the plate body, wherein when the plugging piece (101) is located at a plugging position, the limiting part (105) is abutted to the volute.

7. The volute assembly of claim 6, wherein: the rotating shaft is arranged in the middle of the plate body, so that the first side (1011) and the second side (1012) are balanced mutually, and the limiting part (105) is arranged on the second side (1012).

8. The volute assembly of claim 4, wherein: the edge of the oil leakage hole (102) extends inwards in the radial direction to form a limiting part, and the plugging piece (101) is provided with a groove which is abutted against the limiting part.

9. The volute assembly of claim 3, wherein: the two rotating shaft mounting pieces (104) are arranged, the two rotating shaft mounting pieces (104) are respectively mounted on two opposite sides of the oil leakage hole (102), and the two sides of the rotating shaft (103) in the axial direction are respectively rotatably mounted on the two rotating shaft mounting pieces (104).

10. A range hood comprising a smoke collection hood and a volute assembly according to any one of claims 1 to 9, the volute assembly being mounted within the smoke collection hood.