CN220506836U - Fume exhauster - Google Patents

Abstract

The utility model discloses a range hood, which comprises an upper box body, a lower box body and an air inlet body, wherein the lower box body and the air inlet body can respectively lift relative to the upper box body, the lower box body comprises a back plate positioned at the rear side, and an oil cup is arranged at the bottom of the air inlet body; the rear side of the oil cup exceeds the rear side of the air inlet body, a protruding structure is arranged on the back plate, and the rear side of the oil cup does not exceed the rearmost part of the protruding structure. Compared with the prior art, the utility model has the advantages that: through setting up protruding structure, can make the range hood complete machine more steady at the in-process of going up and down, avoid the oil cup to cut and rub the back extrusion of deformation later extrusion back at the in-process of going up and down and fall.

Description

Fume exhauster

Technical Field

The utility model relates to a lampblack purifying device, in particular to a range hood.

Background

The range hood has become one of the indispensable kitchen appliances in modern families. The range hood works by utilizing the fluid dynamics principle, and the range hood sucks and discharges oil smoke through a centrifugal fan arranged in the range hood and filters part of grease particles by using a filter screen.

The change of the working form of the range hood can realize the combination of the oil fume suction effect during working and the conciseness and beautiful appearance during shutdown. Lifting type range hoods are an important direction of morphological changes. The prior lifting type range hood, such as a hidden type range hood disclosed in China patent with the application number of 201821783223.X, comprises a fume collecting hood and a fume collecting hood, wherein the fume collecting hood and the fume collecting hood are communicated, a first lifting mechanism is arranged between the fume collecting hood and drives the fume collecting hood to move up and down, the fume collecting hood further comprises a movable fume collecting hood, a second lifting mechanism is arranged in an inner cavity of the fume collecting hood, and the second lifting mechanism drives the movable fume collecting hood to move up and down along a channel.

However, the oil liquid at the rear side of the fume collecting hood of the fume extractor can not be guided into the oil cup, so that potential safety hazards are easily caused by dripping downwards, and the fume extracting hood is easily scratched and rubbed with the wall surface in the lifting process of the movable fume collecting hood.

Disclosure of Invention

The utility model aims to solve the technical problems of the prior art, and provides a range hood, which improves lifting stability and ensures normal operation of an oil cup.

The technical scheme adopted for solving the technical problems is as follows: the range hood comprises an upper box body, a lower box body and an air inlet body, wherein the lower box body and the air inlet body can respectively lift relative to the upper box body, the lower box body comprises a back plate positioned at the rear side, and an oil cup is arranged at the bottom of the air inlet body; the method is characterized in that:

the rear side of the oil cup exceeds the rear side of the air inlet body, a protruding structure is arranged on the back plate, and the rear side of the oil cup does not exceed the rearmost part of the protruding structure.

Through setting up protruding structure, can make the range hood complete machine more steady at the in-process of going up and down, avoid the oil cup to cut and rub the back extrusion of deformation later extrusion back at the in-process of going up and down and fall.

Further, in order to facilitate the formation of the raised structure, the raised structure comprises a first folded edge which is folded backwards from top to bottom and a second folded edge which extends downwards from the lower end part of the first folded edge, and the rear side of the oil cup does not exceed the second folded edge.

Preferably, the second flanging extends vertically, so that the lower box body can be lifted vertically, and the lifting stability is further improved.

Further, in order to facilitate the oil on the backboard to be collected into the oil cup, the convex structure further comprises a third bending edge for guiding the oil on the backboard to the oil cup, wherein the third bending edge is formed by bending the lower end part of the second bending edge forwards.

Further, in order to facilitate oil to enter the oil cup from the protruding structure, an oil leakage hole is formed in at least the third bending edge, and the projection of the oil leakage hole on the horizontal plane is located in the projection range of the oil cup on the horizontal plane.

Preferably, the convex structure further comprises a fourth bending edge bent upwards from the lower end part of the third bending edge, and the transition position of the third bending edge and the fourth bending edge.

Further, in order to be convenient for guide the fluid on the backplate to collect the oil cup, be formed with the oil leak hole on the protruding structure, the projection of oil leak hole on the horizontal plane is located the projection scope of oil cup on the horizontal plane.

Preferably, the protruding structure is formed at the bottom of the back plate, so that the protruding structure is conveniently formed, and an excessively long oil path between the protruding structure and the oil cup is avoided.

Preferably, the air inlet body is sleeved in the lower box body, and in a non-working state, part or all of the air inlet body is folded in the lower box body, and in a working state, the air inlet body descends relative to the lower box body.

Preferably, in the non-working state, the air inlet body is fully folded in the lower box body, and the bottom of the oil cup is not exposed out of the lower box body.

Compared with the prior art, the utility model has the advantages that: by arranging the bulge structure, the whole range hood is more stable in the lifting process, and the situation that the oil cup is extruded and falls after being extruded after being rubbed with the wall surface in the lifting process is avoided; oil is guided through the protruding structure, and oil liquid on the backboard is prevented from dripping.

Drawings

Fig. 1 is a schematic diagram of a non-operating state of a range hood according to an embodiment of the present utility model;

fig. 2 is a sectional view illustrating a non-operating state of the range hood according to the embodiment of the present utility model;

fig. 3 is a schematic view of an operating state of a range hood according to an embodiment of the present utility model;

fig. 4 is a sectional view illustrating an operating state of the range hood according to the embodiment of the present utility model;

FIG. 5 is an enlarged schematic view of portion I of FIG. 4;

fig. 6 is a schematic view of a lower case and a hidden panel of a smoke baffle of the range hood according to an embodiment of the present utility model;

fig. 7 is a cross-sectional view of a lower case and a hidden panel of a smoke baffle of the range hood according to an embodiment of the present utility model;

fig. 8 is a schematic view of a back plate and a second side plate of a lower case of the range hood according to the embodiment of the present utility model;

fig. 9 is an enlarged schematic view of the portion ii of fig. 8.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present utility model, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for purposes of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and because the disclosed embodiments of the present utility model may be arranged in different orientations, these directional terms are merely for illustration and should not be construed as limitations, such as "upper", "lower" are not necessarily limited to orientations opposite or coincident with the direction of gravity. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly.

Referring to fig. 1 to 7, a range hood comprises an upper case 1, a lower case 2 and an air inlet 3, wherein the upper case 1 is fixed and immovable, for example, is fixed on a wall surface, and a fan 4 is installed inside the upper case.

The lower box body 2 and the air inlet body 3 can respectively do up-down lifting motion relative to the upper box body 1, the upper box body 1 is sleeved with the lower box body 2, and the lower box body 2 is sleeved with the air inlet body 3. In this embodiment, the lower case 2 is sleeved outside the upper case 1 and outside the air intake 3, the lower end of the upper case 1 extends into the lower case 2 from the upper end of the lower case 2, and the upper end of the air intake 3 extends into the lower case 2 from the lower end of the lower case 2.

In the whole non-working state, the upper box body 1 and the air inlet body 3 are partially or completely folded in the lower box body 2, so that the whole machine has smaller volume, occupies less kitchen space and is more attractive. In the working state of the whole machine, the lower box body 2 and the air inlet body 3 are lowered to a position closer to the smoke source, so that the performance requirement of the whole machine is ensured. The range hood is used for driving the motion mechanism of the lower box body 2 and the air inlet body 3 to lift, and can refer to the existing two-stage lift range hood, as disclosed in the chinese patent with application number 201821783223.X, and also refer to the chinese patent with application number 202010123977.8 of the applicant, and will not be repeated herein.

The air inlet body 3 comprises an air inlet 31 formed in the front side, and a smoke baffle 5 can be arranged at the bottom of the lower box body 2, wherein the smoke baffle 5 is horizontally arranged in the embodiment and is fixed with the lower box body 2. In the working state, the air inlet 31 is positioned below the bottom of the rear side of the smoke baffle 5, and the smoke baffle 5 can guide the oil smoke to enter the air inlet 31. In this embodiment, the air intake body 3 is flat (the depth in the front-rear direction is much smaller than the width in the left-right direction) as a whole, thereby forming an ultra-thin design, and the occupied space in the operating state can be reduced.

The width D of the lower case 2 in the left-right direction is larger than the width D of the upper case 1 and is substantially equal to the width of the air intake body 3. The lower case 2 includes a back plate 21, a first side plate 221, a second side plate 222, a first front plate 231, and a second front plate 232, wherein the back plate 21 is located near an installation base of the range hood, such as a wall surface, at a rear side portion of the overall structure of the lower case 2. The first front plate 231 is disposed at a front side of the back plate 21 at a spacing, which is preferably parallel to the back plate 21. The first side plates 221 have two and are disposed at left and right ends of the first front plate 231, respectively, and each of the first side plates 221 extends rearward from the corresponding end of the first front plate 231. The second front plates 232 have two, each second front plate 232 corresponds to one first side plate 221, and the second front plate 232 is connected to the rear side end portion of the corresponding first side plate 221 and extends in a direction away from the other first side plate 221. The second side plate 222 has two and is connected to the left and right side ends of the back plate 21, respectively. Each of the second side plates 222 extends forward from the connection with the back plate 21, the front end of the left second side plate 222 is connected to the left end of the left second front plate 232, and the front end of the right second side plate 222 is connected to the right end of the right second front plate 232. The second side plate 222 may extend from the rear to the front or may extend gradually away from each other from the rear to the front. The lower case 2 formed of the above-described plate member has a substantially "convex" shape in cross section (horizontal cross section).

Thus, the space between the back plate 21, the second side plate 222, and the second front plate 232 corresponds to the air intake body 3, and the air intake body 3 can be lifted and lowered in the space. The fan 4 is back-suction type, namely, the air inlet of the fan 4 faces to the rear side, thereby forming a direct-suction and direct-discharge type, and being beneficial to the suction and discharge of the oil smoke.

The second front plate 232 and the first front plate 231 may be covered with the panel 24, for example, with the panel 24 made of glass, to avoid the exposure of the connection position, and a control module, a control screen, etc. may be provided on the panel 24. The lower case 2 further includes a top plate 25 provided on top of the back plate 21, the second side plate 222, and the second front plate 232, and having two sides respectively located on the left and right sides of the upper case 1. The smoke barrier 5 at least partially closes the lower ends of the first side plate 221 and the first front plate 231.

To enhance the structural strength of the lower case 2 as a whole, the lower case 2 further includes two connection plates 26, one of which 26 is connected between the left end of the first front plate 231 and the back plate 21, and the other connection plate 26 is connected between the right end of the first front plate 231 and the back plate 21. The portion of the connection plate 26 corresponding to the first side plate 221 is located at a side of the first side plate 221 facing into the lower case 2. The back plate 21, the connecting plate 26 and the first front plate 231 are wrapped on the periphery of the upper box body 1, so that good sealing performance is achieved, reliability of an oil way of the whole machine is guaranteed, namely, the effect of sealing the space in the lower box body 2 when the lower box body 2 is lifted is achieved, and oil stains in the upper box body 1 can be guided to flow downwards when the range hood works. The first side plates 221 and the connection plates 26 may be spaced apart, so that the wires led out from the panel 24 may pass through the space between the connection plates 26 of the first side plates 221 to be upward, thereby avoiding being affected by the oil smoke.

Since the space between the back plate 21, the second side plate 222 and the second front plate 23 is used for lifting the air intake body 3, in order to avoid interference of the lifting of the air intake body 3 by the connecting plate 26, the lower end of the connecting plate 26 is higher than the back plate 21, the second side plate 222 and the second front plate 232, that is, when the air intake body 3 is at the limit position of being stored in the lower box 2, the lower end of the connecting plate 26 is not lower than the top of the position corresponding to the air intake body 3 and the connecting plate 26.

A spacer 28 may be disposed between the two second front plates 232, the spacer 28 being located below the connecting plate 26. The bottom of the first front plate 231, the bottom of the connection plate 26, and the top of the partition plate 28 may be almost flush, and the range hood further includes a bottom plate 27 disposed between the bottom of the first front plate 231 and the top of the partition plate 28.

Thus, within the lower housing 2, a first oil smoke channel Q1 is formed below the connection plate 26, adapted to the air intake body 3, and a second oil smoke channel Q2 is formed above the first oil smoke channel Q1, the two oil smoke channels being in fluid communication, the first oil smoke channel Q1 being in further fluid communication with the air intake body 3, the second oil smoke channel Q2 being in further fluid communication with the upper housing 1. The first oil smoke channel Q1 is located between the back plate 21, the second side plate 222, the second front plate 232 and the partition plate 28, and the second oil smoke channel Q2 is located between the back plate 21, the connection plate 26, the bottom plate 27 and the first front plate 231. The rear end of the first oil smoke channel Q1 is flush with the rear end of the second oil smoke channel Q2 (both are back plates 21), the front end of the second oil smoke channel Q2 is beyond the front end of the first oil smoke channel Q1, and the left and right side ends of the first oil smoke channel Q1 are beyond the left and right side ends of the second oil smoke channel Q2.

The bottom of the air inlet body 3 is provided with an oil cup 6, and the rear side of the oil cup 6 exceeds the rear side of the air inlet body 3. When the range hood is in a non-working state, the bottom of the oil cup 6 is not exposed out of the lower box body 2. Referring to fig. 4, 5, 8 and 9, a protrusion 211 is preferably formed on the back plate 21 at a bottom portion thereof, and the protrusion 211 includes a first bent edge 2111 bent backward from top to bottom, a second bent edge 2112 extending downward from a lower end portion of the first bent edge 2111, a third bent edge 2113 bent forward from a lower end portion of the second bent edge 2112, and a fourth bent edge 2114 bent upward from a lower end portion of the third bent edge 2113. Preferably, the second crimping 2112 may extend vertically.

The protrusion 211 is provided with an oil drain hole 212 at least at the third bent edge 2113, so that the main oil on the back plate 21 can be guided forward. Preferably, the transition positions of the third bent edge 2113 and the fourth bent edge 2114 can be formed. The projection of the oil leakage hole 212 on the horizontal plane is located within the projection range of the oil cup 6 on the horizontal plane. Thus, the oil flowing down through the oil drain hole 212 can be collected in the oil cup 6.

The rear side of the oil cup 6 does not exceed the part of the whole rearmost side of the protruding structure 211, in this embodiment, the part of the rearmost side is the second flange 2112, and the second flange 2112 can be preferably located on the same vertical plane with the rear side of the oil cup 6, so that the whole machine is more stable in the lifting process, the oil cup is prevented from being scratched to the wall surface, and the oil cup 6 is prevented from being extruded and deformed after being scratched to the wall surface or the oil cup 6 is prevented from falling after being extruded.

The term "fluid communication" as used herein refers to a spatial positional relationship between two components or parts (hereinafter collectively referred to as a first part and a second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow along a flow path from the first part to the second part or/and be transported to the second part, or the first part and the second part may be directly communicated with each other, or the first part and the second part may be indirectly communicated with each other through at least one third party, and the third party may be a fluid channel such as a pipe, a channel, a conduit, a flow guiding member, a hole, a groove, or the like, or a chamber allowing the fluid to flow through, or a combination thereof.

Claims (10)

1. The utility model provides a range hood, includes box (1), lower box (2) and air inlet body (3) can go up and down relative box (1) respectively, lower box (2) are including backplate (21) that are located the rear side, the bottom of air inlet body (3) is provided with oil cup (6); the method is characterized in that:

the rear side of the oil cup (6) exceeds the rear side of the air inlet body (3), a protruding structure (211) is arranged on the back plate (21), and the rear side of the oil cup (6) does not exceed the whole rearmost part of the protruding structure (211).

2. The range hood of claim 1, wherein: the convex structure (211) comprises a first bent edge (2111) which is bent backwards from top to bottom and a second bent edge (2112) which extends downwards from the lower end part of the first bent edge (2111), and the rear side of the oil cup (6) does not exceed the second bent edge (2112).

3. The range hood of claim 2, wherein: the second flange (2112) extends vertically.

4. The range hood of claim 2, wherein: the bulge structure (211) further comprises a third bending edge (2113) for guiding oil on the back plate (21) to the oil cup (6), and the third bending edge (2113) is formed by bending the lower end part of the second bending edge (2112) forwards.

5. The range hood of claim 4, wherein: at least the third bending edge (2113) is provided with an oil leakage hole (212), and the projection of the oil leakage hole (212) on the horizontal plane is positioned in the projection range of the oil cup (6) on the horizontal plane.

6. The range hood of claim 5, wherein: the convex structure (211) further comprises a fourth bending edge (2114) bent upwards from the lower end part of the third bending edge (2113), and the transition position of the third bending edge (2113) and the fourth bending edge (2114).

7. The range hood of claim 1, wherein: the oil leakage hole (212) is formed in the protruding structure (211), and the projection of the oil leakage hole (212) on the horizontal plane is located in the projection range of the oil cup (6) on the horizontal plane.

8. The range hood of claim 1, wherein: the raised structure (211) is formed at the bottom of the back plate (21).

9. The range hood of claim 1, wherein: the air inlet body (3) is sleeved in the lower box body (2), in a non-working state, the air inlet body (3) is partially or completely folded in the lower box body (2), and in a working state, the air inlet body (3) descends relative to the lower box body (2).

10. The range hood of claim 9, wherein: in a non-working state, the air inlet body (3) is fully folded in the lower box body (2), and the bottom of the oil cup (6) is not exposed out of the lower box body (2).