CN216790284U - Fume exhaust fan - Google Patents

Abstract

The utility model discloses a range hood, which comprises a smoke collecting hood and a panel component arranged at the bottom of the smoke collecting hood, wherein an air inlet is formed in the panel component, a filter screen is arranged at the air inlet, the filter screen gradually inclines downwards from front to back, and an oil cup is arranged at the bottom of the rear side of the smoke collecting hood, and the range hood is characterized in that: the filter screen has at least two and control interval arrangement, and the preceding tip of every filter screen can be dismantled with panel components and be connected, and the rear end of every filter screen can be dismantled with collection petticoat pipe and be connected. Compared with the prior art, the utility model has the advantages that: by arranging the two-section type filter screen, the filter screen is detachably connected with the panel assembly and the smoke collecting hood respectively, so that the filter screen can be conveniently detached and cleaned after detachment; the smoke collecting hood is convenient for installing the filter screen and the smoke collecting hood by arranging the bottom plate; through setting up the backup pad between the bottom plate of collection petticoat pipe and posterior lateral plate, can strengthen the rigidity and the intensity of bottom plate, avoid the bottom plate to warp.

Description

Fume exhaust fan

Technical Field

The utility model relates to an oil fume purification device, in particular to a range hood.

Background

The range hood works by utilizing the fluid dynamics principle, sucks and exhausts oil smoke through a centrifugal fan arranged in the range hood, and filters partial grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated in the center of the fan, oil smoke below the range hood is sucked into the fan, accelerated by the fan and then collected and guided by the volute to be discharged out of a room.

Current range hood, like the range hood of taking smoke deflector that applicant's application number is 201721042218.9 patent discloses, including the casing, be located the casing fan, be located the collection petticoat pipe of casing below, smoke deflector and oil net, the collection petticoat pipe has the air intake, the oil net is located the air intake of collection petticoat pipe and is located smoke deflector top, the rear side bottom of collection petticoat pipe is equipped with the oil cup.

The filter screen is range hood's first filter equipment, if make the integral type between filter screen and the panel or other mounting means that are difficult to the dismouting, then be difficult for doing cleaning work to range hood inside and filter screen, lead to the oil absorption cigarette effect to descend after the live time has been long. Therefore, the problem that needs to be solved urgently is that whether the filter screen is convenient to detach and install and how the filter screen is easier to clean and install.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a range hood which is convenient for disassembling and cleaning a filter screen aiming at the defects of the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a range hood, includes collection petticoat pipe and sets up the panel components in collection petticoat pipe bottom, the air intake has been seted up on the panel components, air intake department is provided with the filter screen, the filter screen is extended by preceding downward sloping backward gradually, the rear side bottom of collection petticoat pipe is provided with oil cup, its characterized in that: the filter screen has at least two and control interval arrangement, and the preceding tip of every filter screen can be dismantled with panel components and be connected, and the rear end of every filter screen can be dismantled with collection petticoat pipe and be connected.

Preferably, filter screen and panel components joint cooperation, the preceding tip of filter screen is provided with the jack catch towards the inside one side of range hood, panel components is located air intake front end border adjacent position and is provided with to bump and detain, the jack catch makes filter screen and panel components joint with bumping the cooperation of detaining.

For the convenience of fixing the jaw, the jaw passes through the fixed setting on the upper surface of filter screen of jaw seat, the upper surface front end of filter screen has the first turn-ups of buckling backward, first turn-ups is formed with the breach of stepping down by backward preceding recess, thereby step down breach and jaw cooperation supply the jaw to follow the breach of stepping down passes.

In order to avoid the fixing of the jaw seat and the filter screen, the fixing screws protrude out of the flanges, countersunk flanging holes are formed in the left side and the right side of the yielding notch in the first flange, the corresponding positions of the jaw seat are provided with yielding grooves, the yielding grooves are formed by sinking in the direction of keeping away from the first flange towards the side direction of the first flange, and the jaw and the filter screen are connected and fixed by penetrating through the countersunk flanging holes and the jaw seat through the countersunk screws.

In order to prevent oil stains flowing down from the top of the fan frame or the smoke collecting hood from directly dripping from meshes on the filter screen to the table top and being collected into the oil cup through the filter screen, the filter screen is provided with the meshes, the panel assembly is provided with a second flanging which is bent upwards and backwards at the position at the front end of the edge of the air inlet, the latch fastener is fixedly arranged on the second flanging, and the distance from the edge of the front end of the air inlet to the tail end of the second flanging is L4; the distance between the front end edge of the air inlet and the front end of the corresponding mesh is L5, and L5 is larger than L4.

Preferably, the cooperation of pegging graft of filter screen and collection petticoat pipe, the collection petticoat pipe includes the posterior lateral plate, the lower tip of posterior lateral plate is buckled forward and is formed with the bottom plate, the back tip of filter screen is the protrusion backward and is formed with the inserted sheet, be formed with the slot on the preceding tip of bottom plate, the inserted sheet can insert in the slot and make filter screen and collection petticoat pipe peg graft.

In order to enhance the rigidity and strength of the bottom plate, the range hood further comprises a support plate arranged between the air inlet and the rear side plate, the rear end part of the support plate is fixedly connected with the rear side plate, and the front end part of the support plate is fixedly connected with the front end part of the bottom plate.

In order to avoid the interference of the support plate and the filter screen, the front end of the support plate is provided with a yielding through hole corresponding to the position of the insertion piece.

In order to facilitate the connection and fixation of the rear end part of the support plate and the rear side plate, the rear end part of the support plate is connected and fixed with the rear side plate through a first bending edge formed by bending downwards.

In order to conveniently limit the installation position of the rear end part of the supporting plate, an upper limiting bract and a lower limiting bract are arranged on the rear side plate, the upper limiting bract is used for limiting the top surface position of the rear end part of the supporting plate, and the lower limiting bract is used for limiting the lower end position of a first bending edge for fixing the supporting plate and the rear side plate.

In order to facilitate the connection and fixation of the front end part of the support plate and the bottom plate, the front end part of the support plate is connected and fixed with the front end part of the bottom plate through a second bending edge formed by bending downwards.

In order to limit the left and right positions of the support plate and guide the installation of the support plate, the bottom plate is provided with two side limit edges which are respectively arranged at the left side and the right side of the support plate, and the side limit edges are formed by bending the front end of the bottom plate upwards and incline towards the direction gradually far away from the support plate.

In order to facilitate the oil stain on the bottom plate to be collected into the oil cup, the front end part of the bottom plate is provided with an oil leakage hole, and the front end part of the oil cup is positioned in front of the oil leakage hole.

Compared with the prior art, the utility model has the advantages that: by arranging the two-section type filter screen, the filter screen is detachably connected with the panel assembly and the smoke collecting hood respectively, so that the filter screen can be conveniently detached and cleaned after detachment; the smoke collecting hood is convenient for installing the filter screen and the smoke collecting hood by arranging the bottom plate; through setting up the backup pad between the bottom plate of collection petticoat pipe and posterior lateral plate, can strengthen the rigidity and the intensity of bottom plate, avoid the bottom plate to warp.

Drawings

FIG. 1 is a schematic view of a range hood according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a range hood in accordance with an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a hidden fan frame and a fan system of a range hood according to an embodiment of the present invention;

FIG. 4 is a schematic view of the range hood according to the embodiment of the present invention, wherein one of the filter screens is hidden in the range hood;

FIG. 5 is a partial cross-sectional view of the connection between the panel assembly and the filter screen of the range hood according to the embodiment of the present invention;

FIG. 6 is a schematic view of a filter screen and a part of connecting components thereof of the range hood according to the embodiment of the present invention;

FIG. 7 is an exploded view of FIG. 6;

fig. 8 is a schematic view of a partially exploded structure of a filter screen and a smoke collection hood of a range hood according to an embodiment of the present invention;

fig. 9 is a partial sectional view of a smoke collecting hood of a range hood according to an embodiment of the present invention;

fig. 10 is a schematic view of a support plate of a smoke collecting hood of a range hood according to an embodiment of the present invention.

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 functions.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "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 illustrated in the drawings for the purposes of convenience in describing the utility model and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, construction and operation, and that the disclosed embodiments of the utility model are arranged in different orientations, so that the directional terms are exemplary only and are not to be construed as limiting, e.g., "upper," "lower than," and the same, "" lower than, "etc., where the same, and the same than the like in the same than the other than the same than the other than the same in the same than the same in the same than in the same direction of the same, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 to 3, a range hood includes a fume collecting hood 1, a fan frame 2 disposed above the fume collecting hood 1, and a fan system 3 disposed in the fan frame 2. The collection petticoat pipe 1 is the high hollow cover body in front low back, and the bottom surface of collection petticoat pipe 1 is open shape to be provided with panel components 4 in this uncovered department, seted up air intake 41 on the panel components 4, air intake 41 department is provided with filter screen 5, and filter screen 5 is by preceding downward sloping extension backward gradually.

The fume collecting hood 1 includes a front side plate 11, a rear side plate 12, a top plate 13 and a support plate 14, wherein the top plate 13 and the support plate 14 are arranged between the tops of the front side plate 11 and the rear side plate 12, the front side plate 11 and the rear side plate 12 are arranged at intervals in the front-rear direction, and the bottom of the front side plate 11 is higher than the bottom of the rear side plate 12. The support plate 14 is disposed between the intake opening 41 and the rear side plate 12 and is inclined upward gradually from the front to the rear. The smoke collecting cover 1 further includes a bottom plate 15 bent forward from the lower end of the rear side plate 12, and the front end of the bottom plate 15 corresponds to the lower end of the filter screen 5 and the front end of the support plate 14. An oil cup 6 is arranged at the bottom of the rear side of the smoke collecting cover 1, and the front end part of the oil cup 6 is positioned in front of the rear end part of the filter screen 5.

Since the length of the front end side of the bottom plate 15 is long, about 860mm, the rigidity is poor and the deformation is easy. For this purpose, the support plate 14 is provided, and referring to fig. 3 and 10, a rear end portion of the support plate 14 is connected and fixed to the rear side plate 12 by a first bent side 141 bent downward, and a front end portion of the support plate 14 is connected and fixed to a front end portion of the bottom plate 15 by a second bent side 142 bent downward. Therefore, the supporting plate 14, the rear side plate 12 and the bottom plate 15 form a triangular supporting rib after being assembled, and the rigidity and the strength of the rear side plate 12 and the bottom plate 15 are greatly improved.

In order to facilitate the positioning of the supporting plate 15 in accordance with the installation of the supporting plate 14, referring to fig. 9, an upper stopper bud 121 and a lower stopper bud 122 are provided on the rear side plate 12, and a side stopper 152 is provided on the bottom plate 15, the side stopper 152 having two sides and being respectively located on the left and right sides of the supporting plate 14. The upper stopper bud 121 serves to limit the top position of the rear end of the support plate 14, and the lower stopper bud 122 serves to limit the lower end position of the first bent side 141 to which the support plate 14 is fixed to the rear side plate 12. The lateral limiting edge 152 is formed by bending the front end of the bottom plate 15 upwards, and inclines towards a direction gradually away from the support plate 14 (the lateral limiting edge 152 on the left side gradually inclines towards the left from bottom to top, and the lateral limiting edge 152 on the right side gradually inclines towards the right from bottom to top), and the inclination angle with the vertical direction is 60-80 degrees. The portion between the two lateral limiting edges 152 is thus formed as a flare for guiding the installation of the support plate 14. The supporting plate 14 can be easily mounted on the rear side plate 12 and the bottom plate 15 by the restraining action of the two restraining bracts and the guiding action of the two side restraining edges 152.

The front end of the bottom plate 15 is opened with an oil leakage hole 153, and the front end of the oil cup 6 is located in front of the oil leakage hole 153, preferably in a rectangular shape, so that the oil dirt in the fume collecting hood 1 can flow down into the oil cup 6.

The number of the sieves 5 is at least two, and in this embodiment, the sieves 5 are arranged at intervals in the left and right directions, so that the overall length of the sieves 5 can be shortened, and the washing in the sink is facilitated. The filter screen 5 is detachably connected with the panel component 4 and the smoke collecting hood 1 through a connecting piece component. Wherein, the front end of the filter screen 5 is connected with the panel component 4 in a clamping way, and the rear end of the filter screen 5 is connected with the smoke collecting hood 1 in an inserting way.

Referring to fig. 3 to 8, the connector assembly includes a claw 71 disposed on one side of the filter screen 5 facing the interior of the range hood, and a latch 72 disposed on the panel assembly 4 at an adjacent position along the front end edge of the air inlet 41, the claw 71 is gourd-shaped, has a large head and a small middle part, and can be latched into a groove in the latch 72, a spring, a marble, etc. are disposed in the groove, so that the claw 71 can be locked, and the connection manner of the claw 71 and the latch 72 is the same as that of the prior art.

The jaw 71 is fixedly arranged on the filter screen 5 through the jaw seat 73, the front end of the filter screen 5 is provided with a first flanging 51 which is bent backwards, the first flanging 51 is recessed backwards and forwards to form a yielding notch 511, and the yielding notch 511 is matched with the jaw 71 and can allow the jaw 71 to pass through the yielding notch 511. Countersunk holes 512 are formed in the left side and the right side of the abdicating notch 511 on the first flanging 51, abdicating grooves 731 are formed in the corresponding positions of the jaw seats 73 and are formed by sinking towards one side of the first flanging 51 towards the direction far away from the first flanging 51, countersunk screws penetrate through the countersunk holes 512 and the jaw seats 73 to connect and fix the jaws 71 and the filter screen 5, and therefore, when the jaws 71 are fixed on the filter screen 5, the back surfaces of the countersunk screws are flush with the filter screen 5.

The connector assembly further comprises a plug piece 74 protruding rearward from the rear end portion of the filter net 5, a slot 151 is formed on the front end portion of the base plate 15, and the plug piece 74 is inserted into the slot 151, so that one-sided limitation is possible. The other part of the rear end of the screen 15 is attached to the other part of the front end of the bottom plate 15, whereby the rear end of the screen 5 is integrally fixed.

Referring to fig. 10, the front end of the supporting plate 14 is provided with a yielding through hole 143 corresponding to the position of the insertion piece 74, and the yielding through hole mainly has the following function 1 of avoiding the insertion piece 74 of the filter screen 5; 2. the oil stain flowing down the rear side plate 12 is leaked into the oil cup 6.

Therefore, during installation, after the inserting piece 74 at the lower end of the filter screen 5 is inserted into the inserting groove 151 on the bottom plate 15, the lower side of the filter screen 5 is taken as a rotation center to rotate the upper end of the filter screen 5, so that the clamping jaw 71 on the filter screen 5 can be overlapped with the center of the groove of the touch buckle 72, and the filter screen 5 and the panel component 4 can be fixed by being clamped by force. When the filter screen 5 is disassembled, the filter screen 5 is pulled out by reverse force and then is taken out by rotation, thereby being convenient to assemble and disassemble the filter screen 5. Because the spring and the marble are arranged in the latch 72, the touch feeling of detachment and installation is good. Because the filter screen 5 is two-section type, can also easily put into the basin after tearing open and getting and wash.

The screen 5 is provided with meshes, which in this embodiment comprise a first mesh 52, a second mesh 53 and a third mesh 54, which are long in strip shape, for air intake, wherein the first mesh 52 is located between the third mesh 53 and the third mesh 54 in the left-right direction. The length (the extending direction of the meshes, the front-back direction in the mounted state) of the first meshes 52 is L1, the length of the second meshes 53 is L2, and the length of the third meshes 54 is L3, wherein the second meshes 53 are located at the left and right sides of the whole range hood 5, and the third meshes 54 are located at the side of the other filter 5 of the filter 5. The position of the claw 71 corresponds to the first mesh 52. L1 and L2, L1 and L3 are all different.

The panel assembly 4 is provided with a second flange 42 bending upward and backward at the front end of the edge of the air inlet 41, the latch 72 is fixedly arranged on the second flange 42, and the distance from the front end edge of the air inlet 41 to the tail end of the second flange 42 is L4. The distance between the front end edge of the air inlet 41 (the front end part of the filter screen 5) and the front end of the first mesh 52 is L5, and L5 is greater than L4, and the preferable length difference is more than 14mm, and the main function of the air inlet is to prevent oil stains flowing down from the top of the fan frame 2 or the smoke collecting hood 1 from directly dripping from the first mesh 52 on the filter screen 5 to the table surface, while after L5 is greater than L4, the oil stains drip to the position where the filter screen 5 is not perforated and then flow down to the oil cup 6.

Claims (13)

1. The utility model provides a range hood, includes collection petticoat pipe (1) and panel components (4) of setting in collection petticoat pipe (1) bottom, air intake (41) have been seted up on panel components (4), air intake (41) department is provided with filter screen (5), filter screen (5) are extended by preceding downward sloping gradually backward, the rear side bottom of collection petticoat pipe (1) is provided with oil cup (6), its characterized in that: the filter screens (5) are arranged at intervals in a left-right mode, the front end portion of each filter screen (5) is detachably connected with the panel assembly (4), and the rear end portion of each filter screen (5) is detachably connected with the smoke collecting hood (1).

2. The range hood of claim 1, wherein: the front end of filter screen (5) is provided with jack catch (71) towards the inside one side of range hood, panel components (4) are located air intake (41) front end border adjacent position and are provided with and bump knot (72), jack catch (71) and bump knot (72) cooperation make filter screen (5) and panel components (4) joint.

3. The range hood of claim 2, wherein: jack catch (71) are fixed to be set up on the upper surface of filter screen (5) through jack catch seat (73), the upper surface front end of filter screen (5) has first turn-ups (51) of buckling backward, first turn-ups (51) are formed with notch of stepping down (511) by the back preceding recess, thereby notch of stepping down (511) and jack catch (71) cooperation supply jack catch (71) to follow notch of stepping down (511) passes.

4. The range hood of claim 3, wherein: the left and right sides that lies in abdicating breach (511) on first turn-ups (51) is provided with countersunk head turn-ups hole (512), the corresponding position of jack catch seat (73) is formed with abdicating recess (731), abdicating recess (731) is sunken and form by the direction of keeping away from first turn-ups (51) one side to through countersunk head screw pass countersunk head turn-ups hole (512) and jack catch seat (73) and be connected claw (71) and filter screen (5) fixedly.

5. The range hood of claim 3, wherein: the filter screen (5) is provided with meshes, the panel component (4) is provided with a second flanging (42) which is bent upwards and backwards at the position located at the front end of the edge of the air inlet (41), the latch fastener (72) is fixedly arranged on the second flanging (42), and the distance from the edge of the front end of the air inlet (41) to the tail end of the second flanging (42) is L4; the distance between the front end edge of the air inlet (41) and the front end of the corresponding mesh is L5, and L5 is larger than L4.

6. The range hood of claim 2, wherein: collection petticoat pipe (1) includes posterior lateral plate (12), the lower tip forward bending type of posterior lateral plate (12) is formed with bottom plate (15), the back tip of filter screen (5) is to the backward protrusion be formed with inserted sheet (74), be formed with slot (151) on the front end of bottom plate (15), inserted sheet (74) can insert in slot (151) and make filter screen (5) and collection petticoat pipe (1) peg graft.

7. The range hood of claim 6, wherein: the range hood further comprises a supporting plate (14) arranged between the air inlet (41) and the rear side plate (12), the rear end portion of the supporting plate (14) is fixedly connected with the rear side plate (12), and the front end portion of the supporting plate (14) is fixedly connected with the front end portion of the bottom plate (15).

8. The range hood of claim 7, wherein: the front end of the supporting plate (14) is provided with a yielding through hole (143) corresponding to the position of the plug piece (74).

9. The range hood of claim 7, wherein: the rear end part of the support plate (14) is fixedly connected with the rear side plate (12) through a first bent edge (141) formed by bending downwards.

10. The range hood of claim 9, wherein: the rear side plate (12) is provided with an upper limiting bract (121) and a lower limiting bract (122), the upper limiting bract (121) is used for limiting the top surface position of the rear end part of the supporting plate (14), and the lower limiting bract (122) is used for limiting the lower end part position of a first bending edge (141) fixed between the supporting plate (14) and the rear side plate (12).

11. The range hood of claim 7, wherein: the front end part of the supporting plate (14) is connected and fixed with the front end part of the bottom plate (15) through a second bent edge (142) formed by bending downwards.

12. The range hood of claim 11, wherein: the bottom plate (15) is provided with two side limiting edges (152), the two side limiting edges (152) are respectively located on the left side and the right side of the supporting plate (14), and the side limiting edges (152) are formed by bending the front end of the bottom plate (15) upwards and incline towards the direction away from the supporting plate (14) gradually.

13. The range hood of claim 6, wherein: an oil leakage hole (153) is formed in the front end of the bottom plate (15), and the front end of the oil cup (6) is located in front of the oil leakage hole (153).

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