CN219550612U - Fume exhauster - Google Patents

Abstract

The utility model discloses a range hood, which comprises a fume collecting hood, a fan frame arranged on the fume collecting hood and a fan system arranged in the fan frame, wherein the fume collecting hood comprises a bottom plate provided with an air inlet, an oil cup is arranged at the middle position of the bottom plate, the bottom plate gradually inclines upwards from the middle to the left side and the right side respectively, an oil guide net is arranged at the joint of the fume collecting hood and the fan frame, a first oil leakage hole is formed in the position, corresponding to the oil cup, of the bottom plate, and a second oil leakage hole is formed in the position, corresponding to the oil cup, of the oil guide net. Through setting up the oil guide net, can accord with the safety rule requirement, avoid the user can direct contact to fan system, and the oil guide net is by both sides to middle oil guide, can be with the greasy dirt of fan frame drip to middle guide and collect in the oil cup, and avoid direct whereabouts down, cause the potential safety hazard.

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 centrifugal fan comprises a volute, an impeller arranged in the volute and a motor for driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated at the center of the fan, and oil smoke below the range hood is sucked into the fan and is collected by the volute after being accelerated by the fan to be guided to be discharged out of the room.

The existing top-suction type range hood is disclosed in China patent with the application number of 201820122063.8, and is disclosed in China patent with the application number of 201922407146.9. Some oil drops are possible in the top-suction type range hood, especially when water is boiled, water drops are easy to drop in winter or north. A common solution is to alert the user to scrub.

In order to improve the oil path environment of the cavity, there is also a range hood, such as a range hood with air purifying function disclosed in the present patent application No. 202122621562.6, which includes: the fan frame is internally provided with an air inlet duct; the exhaust fume collecting hood is arranged at the bottom of the fan frame and provided with a shoulder protruding outwards relative to the fan frame, and the bottom of the exhaust fume collecting hood is provided with a main air inlet; an auxiliary air channel communicated with the air inlet channel is defined in the shoulder part, and a secondary air inlet communicated with the auxiliary air channel is further arranged at the bottom of the fume collecting hood.

The range hood can improve the oil way to a certain extent, but still has the risk of directly dripping oil dirt in the fan frame downwards, and needs to be further improved.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the range hood, which can guide the oil stains on a fan frame to flow downwards to be collected, so as to avoid potential safety hazards caused by direct dripping.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a range hood, includes collection petticoat pipe, sets up fan frame and the fan system of setting in the fan frame on collection petticoat pipe, collection petticoat pipe is including the bottom plate of seting up the air intake, the intermediate position of bottom plate is provided with the oil cup, the bottom plate is by middle left side and right side respectively upwards slope, its characterized in that gradually: the exhaust fume collecting hood is characterized in that an oil guide net is arranged at the joint of the fume collecting hood and the fan frame, a first oil leakage hole is formed in the position, corresponding to the oil cup, of the bottom plate, and a second oil leakage hole is formed in the position, corresponding to the oil cup, of the oil guide net.

Through setting up the oil guide net, can accord with the safety rule requirement, avoid the user can direct contact to fan system, and the oil guide net is by both sides to middle oil guide, can be with the greasy dirt of fan frame drip to middle guide and collect in the oil cup, and avoid direct whereabouts down, cause the potential safety hazard.

The oil guiding net is in a shape that the left side and the right side gradually incline downwards towards the middle so as to facilitate the oil dirt to flow towards the middle and be collected.

Further, the oil stain can be guided backwards to be collected, the oil guiding net is provided with upwards turned-up meshes, the meshes extend in the front-back direction, and the rear side of the oil guiding net is provided with a downwards bent guide part.

Further, the oil stain can be guided backwards and collected, the oil guiding net is provided with upwards flanging meshes, the meshes are provided with two groups of left and right arranged at intervals, each group of the oil guiding net is provided with at least two meshes which extend left and right, the meshes of each group of the oil guiding net are arranged at intervals front and back, and the rear side of the oil guiding net is provided with a downwards bent guide part.

Further, the fan frame comprises a fan cover plate positioned at the front side, and the position, corresponding to the fan cover plate, of the oil guide net is a solid part, so that oil stains flowing down by the fan cover plate can be prevented from directly dripping downwards.

Further, in order to better support the oil dirt flowing down on the fan frame, the oil guiding net is provided with upwards bent flanges at least at the left side, the right side and the front side.

Preferably, for the cooking utensils of adaptation double kitchen, thereby the bottom plate is protruding upwards to be formed with first collection cigarette chamber and the second collection cigarette chamber of controlling the arrangement under the bottom plate, first air intake has been seted up to the part that corresponds first collection cigarette chamber on the bottom plate, the second air intake has been seted up to the part that corresponds the second collection cigarette chamber on the bottom plate.

For being convenient for guide oil smoke gathers to the centre, the part that bottom plate and first collection cigarette chamber correspond upwards is protruding by the left side and be close to the right side of second collection cigarette chamber middle, the part that bottom plate and second collection cigarette chamber correspond upwards is protruding by the right side and be close to the left side of first collection cigarette chamber middle, first air intake is from left to back gradually downward sloping ground extension, the second air intake is from right to left gradually downward sloping ground extension, the oil cup is located between two air intakes.

Furthermore, gaps exist between the oil guide net and each air inlet, so that oil smoke can be sucked from the part, close to the front side, of the air inlet, and the front side air inlet is enhanced.

In order to enlarge the range of smoke collection and further improve the effect of absorbing the smoke, the range hood further comprises two smoke baffle plates which are arranged left and right, and the smoke baffle plates are respectively arranged at the bottom of the smoke collecting hood in a rotating mode, so that corresponding areas of the main air inlet are opened and closed, and the smoke baffle plates exceed corresponding sides of the smoke collecting hood when opened, and the range of smoke collection is enlarged.

Compared with the prior art, the utility model has the advantages that: by arranging the oil guide net, the safety requirements can be met, the situation that a user can directly contact a fan system is avoided, oil dirt dropped by a fan frame can be guided to the middle by the oil guide net from two sides to the middle and collected in an oil cup, and potential safety hazards caused by direct downward dropping are avoided; the oil guide net and the air inlet have a certain gap, so that the air inlet at the front end of the air inlet can smoothly enter the fan system, the air inlet at the front side is enhanced, and the oil smoke absorbing effect is further improved.

Drawings

Fig. 1 is a schematic view of a range hood according to a first embodiment of the present utility model;

fig. 2 is a sectional view of a range hood according to a first embodiment of the present utility model;

fig. 3 is a schematic view of an oil guide net of a range hood according to a first embodiment of the present utility model;

fig. 4 is a schematic view of a range hood according to a second embodiment of the present utility model;

fig. 5 is a schematic view of a smoke collecting hood of a range hood according to a second embodiment of the present utility model;

fig. 6 is a schematic view of an oil guide net of a range hood according to a third embodiment of the present utility model.

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.

Example 1

Referring to fig. 1 to 3, a range hood is a top-draft range hood, and includes a smoke collecting hood 1, a fan frame 2 disposed above the smoke collecting hood 1, and a fan system 3 disposed in the fan frame 2, in this embodiment, the fan system 3 employs a centrifugal fan, and its axis is disposed in the front-rear direction.

The fume collecting hood 1 includes a bottom plate 13 at the bottom, the bottom plate 13 is upwardly protruded so that a first fume collecting chamber 11 and a second fume collecting chamber 12 are formed below the bottom plate 13 in a left-right arrangement, and a cross section of each fume collecting chamber is preferably substantially triangular (the cross section is a cross section in a left-right vertical direction shown in fig. 2), that is, a portion of the bottom plate 13 corresponding to the first fume collecting chamber 11 is upwardly protruded from a left side and a right side near a middle of the second fume collecting chamber 12 (the middle is not a middle of the fume collecting hood 1 but a position between the left and right sides of the first fume collecting chamber 11), and a portion of the bottom plate 13 corresponding to the second fume collecting chamber 12 is upwardly protruded from the right side and a left side near a middle of the first fume collecting chamber 11 (the middle is not a middle of the fume collecting hood 1 but a position between the left and right sides of the second fume collecting chamber 12).

The first air intake 14 has been seted up to the part that corresponds first album of cigarette chamber 11 on the bottom plate 13, and the part that corresponds second album of cigarette chamber 12 on the bottom plate 13 is equipped with second air intake 15 separately, and first air intake 14 is from left to back gradually downward sloping ground extension, and second air intake 15 is from right to left gradually downward sloping ground extension. The space above the bottom plate 13 in the fume collecting hood 1 is in fluid communication with the fan frame 2, whereby each fume collecting cavity is in fluid communication with the fan frame 2 through a corresponding air inlet.

A filter screen (not shown) may be provided at both air inlets, whereby the soot entering through each air inlet may be filtered.

The middle position of the bottom plate 13, namely the position between the two smoke collecting cavities, is provided with an oil cup 5 which can receive the oil dirt flowing down from the bottom plate 13 and the two filter screens. The bottoms of the front side and the rear side of the fume collecting hood 1 can gradually incline downwards from the left side and the right side to the middle, and the inclination degree relative to the horizontal plane can be more than 5 degrees, so that water and oil stains on the bottom edges of the front side and the rear side of the fume collecting hood 1 can be collected to the middle.

The range hood further comprises two smoke baffle plates 4, wherein the smoke baffle plates 4 are respectively and rotatably arranged at the bottom of the smoke collecting hood 1, and the rotating connection positions are one sides, away from each other, of the two smoke baffle plates 4. The left-side smoke baffle plate 4 corresponds to the first smoke collecting chamber 11, the right-side smoke baffle plate 4 corresponds to the second smoke collecting chamber 12, and is located outside (lower side) the air inlets of the respective smoke collecting chambers, respectively, and can open and close the respective air inlets by rotating. When the smoke baffle 4 is closed, the smoke baffle 4 is folded in the corresponding smoke collecting cavity, and when the smoke baffle 4 is opened, the smoke baffle can extend beyond the corresponding side of the smoke collecting hood 1 in the left-right direction, so that the smoke collecting area (negative pressure area) of the side (left side or right side) is enlarged.

The smoke baffle 4 can be driven by the existing movement mechanism to rotate relative to the smoke collecting hood 1, and the rotation axis extends in the front-rear direction, such as a motor, an electric push rod and the like. Preferably, the movement mechanisms of the two smoke baffles 4 can be independent or linked. In the initial state, the smoke baffle plate 4 can be in a state of being folded in the corresponding smoke collecting cavity. When the cooking of the right side cooking range is performed, the smoke baffle 4 on the right side is opened, and when the cooking of the left side cooking range is performed, the smoke baffle 4 on the left side is opened. The two smoke baffle plates 4 can be opened when the single-side cooking range is used for cooking, so that the interference of side wind on two sides of the range hood can be prevented, a stable flow field is formed above the cooker, and the smoking effect is more stable. When the two cooking heads cook, both smoke baffle plates 4 can be opened.

Through opening of two cigarette baffle plates 4, can form effectual M type, two collection cigarette chamber cooperation cigarette baffle plates 4 can form the depth of gathering cigarettes more than 3 times of ordinary collection petticoat pipe.

The top of each smoke collecting cavity is provided with the air inlet as large as possible, so that the smoke can be sucked into the smoke exhaust ventilator. The oil dirt dropped or condensed on both sides of the bottom plate 13 may flow toward the middle, thereby being collected in the oil cup 5. In order to ensure that the oil dirt in the range hood can be normally gathered to the middle oil bearing position, the oil bearing composition structure can be single or can be a combination of a lamp and an oil cup.

In order to meet the safety regulations, the oil guide net 6 is arranged at the joint of the top of the fume collecting hood 1 and the fan frame 2, and the oil guide net 6 gradually inclines downwards from front to back. The oil guide net 6 is provided with a mesh 61, the mesh 61 is preferably a burring hole, burring is upward, and the mesh 61 is a long-strip hole extending in the front-rear direction. The oil dirt may be guided backward along the portions between the meshes 61 so as to be collected in the oil cup 5. The oil guide net 6 can also play a role in carding the oil smoke air flow, and rectify the oil smoke air flow.

The oil guide net 6 is formed with upwardly bent flanges 63 at least at left, right and front sides so that the oil guide net 6 can receive oil dirt flowing down around the fan frame 2. The rear side of the oil guide net 6 is formed with a guide 64 bent downward. When the oil collecting hood is installed, the guide part 64 can be close to a wall, and can guide oil stains of the oil guide net 6 downwards to the oil collecting hood 1, and an oil leakage hole (not shown) is formed in the lowest position of the bottom plate 13, and corresponds to the oil cup 5, so that the oil stains flow downwards into the oil cup 5.

A certain gap is formed between the oil guide net 6 and the bottom plate 13, so that smooth oil smoke suction from the front side of each smoke collecting cavity can be ensured.

Example two

Referring to fig. 5, in this embodiment, a first difference from the above embodiment is that a filter screen 16 is integrally formed at each air inlet on the bottom plate 13. The bottom plate 13 is provided at a lowermost middle position thereof with first oil leakage holes 131, and the first oil leakage holes 131 may have at least two and be arranged at intervals in the front-rear direction, and the positions of the first oil leakage holes 131 correspond to the oil cups 5.

Example III

Referring to fig. 6, in the present embodiment, a difference from the above-described embodiment is that the mesh 61 has two groups of horizontally spaced apart, each group has at least two elongated shaped mesh 61 extending horizontally, the mesh 61 of each group is horizontally spaced apart front and rear, and the oil guiding net 6 is gradually inclined downward from the left and right sides toward the middle. A second oil leakage hole 65 is formed in the middle of the oil guide net 6, and the position of the second oil leakage hole 65 corresponds to the oil cup 5. Thus, the oil dirt on the oil guide net 6 is collected in the middle and then flows down into the oil cup 5 through the second oil drain hole 65 and the first oil drain hole 131.

In order to prevent the oil dirt flowing down from the fan cover plate 21 at the front side of the fan frame 2 from directly dripping down, the position on the oil guiding net 6 corresponding to the fan cover plate 21 is a solid part 62 without meshes 61, so that the oil dirt dripping from the fan cover plate 21 can be blocked.

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 (9)

1. The utility model provides a range hood, includes collection petticoat pipe (1), sets up fan frame (2) and fan system (3) of setting in fan frame (2) on collection petticoat pipe (1), collection petticoat pipe (1) are including the bottom plate (13) of seting up the air intake, the intermediate position of bottom plate (13) is provided with oil cup (5), bottom plate (13) are by middle left side and right side respectively gradually upward sloping, its characterized in that: the oil guide net (6) is arranged at the joint of the fume collecting hood (1) and the fan frame (2), a first oil leakage hole (131) is formed in the position, corresponding to the oil cup (5), of the bottom plate (13), a second oil leakage hole (65) is formed in the position, corresponding to the oil cup (5), of the oil guide net (6), and the oil guide net (6) is in a shape with the left side and the right side inclined downwards gradually towards the middle.

2. The range hood of claim 1, wherein: the oil guide net (6) is provided with upward flanging meshes (61), the meshes (61) extend in the front-back direction, and the rear side of the oil guide net (6) is provided with a downward bending flow guide part (64).

3. The range hood of claim 1, wherein: the oil guide net (6) is provided with upward flanging meshes (61), the meshes (61) are provided with two groups which are arranged at intervals left and right, each group is provided with at least two meshes (61) which extend left and right, the meshes (61) of each group are arranged at intervals front and back, and the rear side of the oil guide net (6) is provided with downward bending guide parts (64).

4. A range hood according to claim 3, wherein: the fan frame (2) comprises a fan cover plate (21) positioned at the front side, and the position, corresponding to the fan cover plate (21), on the oil guide net (6) is a solid part (62).

5. The range hood of claim 1, wherein: the oil guide net (6) is formed with upwardly bent flanges (63) at least at the left, right and front sides.

6. The range hood of claim 1, wherein: the bottom plate (13) protrudes upwards, a first smoke collecting cavity (11) and a second smoke collecting cavity (12) which are arranged left and right are formed below the bottom plate (13), a first air inlet (14) is formed in a part, corresponding to the first smoke collecting cavity (11), of the bottom plate (13), and a second air inlet (15) is formed in a part, corresponding to the second smoke collecting cavity (12), of the bottom plate (13).

7. The range hood of claim 6, wherein: the part that bottom plate (13) corresponds with first album of cigarette chamber (11) is upwards protruding by the left side with be close to the right side direction centre of second album of cigarette chamber (12), the part that bottom plate (13) corresponds with second album of cigarette chamber (12) is upwards protruding by the right side and be close to the left side direction centre of first album of cigarette chamber (11), first air intake (14) are by left side backward gradually downward sloping ground extension, second air intake (15) are from right side left side gradually downward sloping ground extension, oil cup (5) are located between two air intakes.

8. The range hood of claim 1, wherein: gaps exist between the oil guide net (6) and each air inlet.

9. The range hood according to any one of claims 1 to 8, wherein: the range hood further comprises two smoke baffle plates (4) which are arranged left and right, the smoke baffle plates (4) are respectively arranged at the bottom of the smoke collecting hood (1) in a rotating mode, so that corresponding areas of the main air inlet are opened and closed, and when the smoke baffle plates (4) are opened, the smoke baffle plates exceed corresponding sides of the smoke collecting hood (1) to enlarge the smoke collecting range.