CN217004595U

CN217004595U - Fume exhaust fan

Info

Publication number: CN217004595U
Application number: CN202220055102.3U
Authority: CN
Inventors: 王伟; 刘杰; 陈浩辉; 余旭锋; 王紫军
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-07-19
Anticipated expiration: 2032-01-07

Abstract

The utility model discloses a range hood, which comprises an air inlet component and a fan frame arranged above the air inlet component, wherein the air inlet component is communicated with the fluid inside the fan frame, the air inlet component comprises a front side wall and a rear side wall which are arranged at intervals in the front-rear direction, an air inlet is formed in the front side wall, the range hood also comprises a smoke baffle component capable of opening and closing the air inlet and a movement mechanism used for driving the smoke baffle component to move, and the range hood is characterized in that: keep off the cigarette board subassembly and include first fender cigarette board and second fender cigarette board, the upper end and the preceding lateral wall of first fender cigarette board rotate to be connected, the lower extreme of first fender cigarette board rotates with the upper end of second fender cigarette board to be connected, motion includes the straight line drive module of the ascending motion in the upper and lower direction of output, the lower extreme of second fender cigarette board directly or indirectly rotates with the output of straight line drive module to be connected, the rotation axis of first fender cigarette board and second fender cigarette board extends in the left and right directions.

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 has become one of the indispensable kitchen household electrical appliances in modern families. 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, and is accelerated by the fan, collected by the volute and guided to be discharged outdoors.

The existing range hood mainly has a low suction type in the form that an air inlet is close to a smoke source, for example, a low suction type range hood disclosed in Chinese patent with application number 201120406258.3 comprises a smoke collecting hood with a smoke suction port at the bottom, a fan cover is arranged at the top of the smoke collecting hood, at least one group of fans are arranged in the fan cover, a filter assembly capable of adjusting the air inlet position is further arranged on the smoke suction port, the inside of the smoke collecting hood is hollow, the fan cover is arranged at the center or one side of the top of the smoke collecting hood, and the air inlet of each fan is communicated with the smoke collecting hood.

If the smoke collecting effect is to be improved, the smoke baffle plate which can be turned over is usually arranged at the air inlet, and because the air inlet is lower, the smoke baffle plate is easy to interfere with a pot and the like in the moving process, and can shield the sight in an opening state, so that the smoke collecting effect is still to be improved.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a range hood aiming at the problems existing in the prior art, which can improve the oil smoke suction effect, simultaneously can avoid the interference of the smoke baffle plate and a cooker in the opening process, and simultaneously can not shield the sight.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a range hood, includes the air inlet subassembly and sets up the fan frame in air inlet subassembly top, the inside fluid intercommunication of air inlet subassembly and fan frame, the preceding lateral wall and the back lateral wall of interval arrangement around the air inlet subassembly includes, the air intake has been seted up on the preceding lateral wall, range hood is still including the motion that can open and close the fender cigarette board subassembly of air intake and be used for the drive to keep off the motion of cigarette board subassembly, its characterized in that: keep off the cigarette board subassembly and include first fender cigarette board and second fender cigarette board, the upper end and the preceding lateral wall of first fender cigarette board rotate to be connected, the lower extreme of first fender cigarette board rotates with the upper end of second fender cigarette board to be connected, motion includes the straight line drive module of the ascending motion in the upper and lower direction of output, the lower extreme of second fender cigarette board directly or indirectly rotates with the output of straight line drive module to be connected, the rotation axis of first fender cigarette board and second fender cigarette board extends in the left and right directions.

In order to be convenient for approaching a smoke source, oil smoke is locked in advance, and the oil smoke absorption effect is improved, the air inlet is close to the bottom of the front side wall.

In order to ensure that the left side and the right side of the smoke baffle assembly move stably and synchronously, the moving mechanism further comprises a connecting rod extending in the left-right direction, the connecting rod is fixed with the output end of the linear driving module, and the left end and the right end of the second smoke baffle are respectively in direct or indirect rotating connection with the connecting rod.

In order to guide the movement of the lower end of the second smoke baffle, the movement mechanism further comprises two guide mechanisms, the two guide mechanisms are respectively arranged on the left side and the right side of the air inlet assembly, each guide mechanism comprises a first guide rail and a second guide rail, the first guide rails are fixed in the air inlet assembly, the second guide rails are located on the front sides of the first guide rails and are in sliding fit with the first guide rails, the two ends of the connecting rod are respectively fixed with the second guide rails, and the second smoke baffle is rotatably connected with the front sides of the second guide rails.

Preferably, the linear driving module comprises a driving mechanism, a screw rod and a nut serving as an output end, the screw rod extends in the vertical direction and is driven by the driving mechanism to rotate around the axis of the screw rod, the nut is sleeved on the screw rod and is in threaded connection, and the connecting rod and the nut are fixed.

Preferably, the upper end of the first smoke baffle is hinged with the left side and the right side of the upper edge of the air inlet through a first hinge, the lower end of the second smoke baffle is provided with a second hinge towards one side in the air inlet assembly, the second hinges are provided with two ends which are close to the left end and the right end of the second smoke baffle respectively, and the second hinges are hinged with the connecting rod directly or indirectly.

In order to facilitate the fluid communication between the fan frame and the air inlet assembly, the air inlet assembly further comprises a top wall arranged between the top ends of the front side wall and the rear side wall, and an opening is formed in the top wall to enable the fluid communication between the air inlet assembly and the fan frame.

Compared with the prior art, the utility model has the advantages that: through setting up folding fender cigarette board subassembly, when enlarging and holding together the cigarette scope, can make and keep off the cigarette board subassembly and can avoid interfering with the pan when opening, also can not shelter from the sight under the open mode, keep off the second of cigarette board subassembly simultaneously and keep off the cigarette board and can also guide the oil smoke through attaching the wall effect to improve the oil absorption cigarette effect.

Drawings

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

FIG. 2 is a sectional view of a hidden fan frame of the range hood according to the embodiment of the present invention;

fig. 3 is a schematic view of a smoke barrier assembly and a movement mechanism thereof of the range hood according to the embodiment of the utility model;

fig. 4 is an exploded structural schematic view of a smoke baffle assembly and a movement mechanism thereof of the range hood according to the embodiment of the utility model;

fig. 5 is a schematic view of a range hood according to an embodiment of the present invention in a closed state.

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," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "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 4, a range hood includes an air intake assembly 1 and a fan frame 2 disposed above the air intake assembly 1, wherein a fan system (not shown) is disposed in the fan frame 2. The air inlet component 1 is communicated with the fluid in the fan frame 2.

The thickness of the air intake component 1 in the front-back direction is smaller than that of the fan frame 2, and the thickness of the air intake component 1 can be adjusted, wherein the front side is the side close to a user in a use state, and the back side is the side far away from the user in the use state. The air inlet component 1 comprises a front side wall 11 and a rear side wall 12 which are arranged at intervals in the front-rear direction, a left side wall 13 is connected between the left ends of the front side wall 11 and the rear side wall 12, a right side wall 14 is connected between the right ends of the front side wall 11 and the rear side wall 12, a top wall 15 is connected between the top ends of the front side wall 11 and the rear side wall 12, and a bottom wall 16 is connected between the bottom ends of the front side wall 11 and the rear side wall 12. Thus, the air intake assembly 1 is in a hollow box shape. The bottom of the air intake component 1 is provided with an oil cup 5, and an oil leakage hole (not shown) can be formed in the bottom wall 16 at a position corresponding to the oil cup 5, so that oil stains can be collected in the oil cup 5 through the oil leakage hole.

The front side wall 11 is provided with an air inlet 17, and the air inlet 17 is preferably close to the bottom of the front side wall 11. The top wall 15 is provided with an opening 151, so that the oil smoke can enter the air inlet component 1 through the air inlet 17 and then enter the fan frame 2 through the opening 151.

The range hood further comprises a smoke baffle assembly, the smoke baffle assembly comprises a first smoke baffle 31 and a second smoke baffle 32, the upper end of the first smoke baffle 31 is hinged to the left side and the right side of the upper edge of the air inlet 17 of the front side wall 11 through a first hinge 311, the first smoke baffle 31 can be connected with the front side wall 11 in a rotating mode through other connecting parts, the rotating axis of the first smoke baffle 31 extends leftwards and rightwards, and the rotating center is fixed.

The upper end of second cigarette board 32 is connected with the lower extreme rotation of first cigarette board 31, and one side in the lower extreme orientation air inlet subassembly 1 of second cigarette board 32 then is provided with second hinge 321, and preferably, second hinge 321 has about two of interval arrangement, more preferred respectively is close to the left and right sides both ends of second cigarette board 32.

The range hood further comprises a movement mechanism for driving the first smoke baffle 31 and the second smoke baffle 321 to move, the movement mechanism comprises a driving mechanism 41, a transmission mechanism and a guide mechanism 43, in this embodiment, the driving mechanism 41 adopts a motor, the transmission mechanism comprises a screw rod 421 and a nut 422, the screw rod 421 extends in the up-and-down direction and can be driven by the driving mechanism 41 to rotate around the axis of the screw rod 421, and the nut 422 is sleeved on the periphery of the screw rod 421 and is in threaded connection with the screw rod 421. The driving mechanism 41, the lead screw 421 and the nut 422 thus constitute a linear driving module, and the nut 422 serves as an output end of the linear driving module. The transmission mechanism further includes a link 423 fixed to the nut 422, and the link 423 extends in the left-right direction and is movable up and down with the nut 422.

The guide mechanism 43 has two

guide rails

431 and 432, which are respectively disposed at the left and right sides of the inner side of the intake assembly 1, wherein the first guide rail 431 is fixed in the intake assembly 1, the second guide rail 432 is located at the front side of the first guide rail 431, the second guide rail 432 is slidably engaged with the first guide rail 431, both ends of the link 423 are respectively fixed with the second guide rail 432, the second hinge 322 is rotatably connected with the front side of the second guide rail 432, and the rotation axis extends in the left and right directions. The second guide rails 432 are correspondingly disposed at the left and right ends of the air inlet 17.

Alternatively, the nut 422 may be directly connected to the second hinge 321. Alternatively, instead of using a hinge, other rotation connecting mechanisms may be used to connect the second smoke baffle 321 directly or indirectly to the output end of the linear driving module. In addition, the linear driving module can also adopt the existing mechanisms such as the combination of a motor, a gear and a rack, an electric push rod and the like.

Thus, referring to fig. 5, in the closed state of the range hood, the first smoke barrier 31 and the second smoke barrier 32 are in the vertical state, so as to close the air inlet 17. When the range hood needs to be opened, the moving mechanism is started, referring to fig. 1 and fig. 2, the driving mechanism 41 drives the connecting rod 423 to move upward, so as to drive the second guide rail 432 to move upward, thereby driving the lower end of the second smoke baffle 32 to move upward, gradually exposing the air inlet 17, and this movement of the second smoke baffle 32 also pushes the lower end of the first smoke baffle 31 to rotate outward around the first hinge 311. Preferably, in the open state, the second smoke baffle 32 may be horizontal, and the oil smoke may be guided into the air intake assembly 1 through the air inlet 17 along the surface of the second smoke baffle 32 by using the coanda effect, where the height of the air inlet 17 is equal to the height of the second smoke baffle 32. When the valve needs to be closed again, the driving mechanism 41 drives the connecting rod 423 to move downwards.

Above-mentioned this kind of opening mode of keeping off cigarette board subassembly can not take place to interfere with the pan of range hood below, and under the open mode, because the position of first keeping off the cigarette board is higher and shorter, consequently can not shelter from the sight.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow from the first portion along a flow path or/and be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third member, such as a fluid channel, e.g., a pipe, a channel, a conduit, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow therethrough, or a combination thereof.

Claims

1. The utility model provides a range hood, includes air inlet subassembly (1) and sets up fan frame (2) in air inlet subassembly (1) top, the inside fluid intercommunication of air inlet subassembly (1) and fan frame (2), preceding lateral wall (11) and back lateral wall (12) of interval arrangement around air inlet subassembly (1) is including, air intake (17) have been seted up on preceding lateral wall (11), range hood is still including the cigarette board subassembly that keeps off that can open and close air intake (17) and the motion that is used for driving the motion of cigarette board subassembly, its characterized in that: keep off the cigarette board subassembly and include first fender cigarette board (31) and second fender cigarette board (32), the upper end and preceding lateral wall (11) of first fender cigarette board (31) are rotated and are connected, the lower extreme of first fender cigarette board (31) is rotated with the upper end of second fender cigarette board (32) and is connected, motion includes the straight line drive module of the ascending motion in the direction from top to bottom of the output, the lower extreme of second fender cigarette board (32) rotates with the output of straight line drive module directly or indirectly and is connected, the axis of rotation of first fender cigarette board (31) and second fender cigarette board (32) extends in the direction of controlling.

2. The range hood of claim 1, wherein: the air inlet (17) is close to the bottom of the front side wall (11).

3. The range hood according to claim 1 or 2, wherein: the movement mechanism further comprises a connecting rod (423) extending in the left-right direction, the connecting rod (423) is fixed with the output end of the linear driving module, and the left end and the right end of the second smoke baffle (32) are respectively in direct or indirect rotating connection with the connecting rod (423).

4. The range hood of claim 3, wherein: the moving mechanism further comprises two guide mechanisms (43), the two guide mechanisms (43) are respectively arranged at the left side and the right side of the air inlet assembly (1), each guide mechanism (43) comprises a first guide rail (431) and a second guide rail (432), the first guide rail (431) is fixed in the air inlet assembly (1), the second guide rail (432) is located at the front side of the first guide rail (431) and is in sliding fit with the first guide rail (431), two ends of the connecting rod (423) are respectively fixed with the second guide rail (432), and the second smoke baffle (32) is in rotating connection with the front side of the second guide rail (432).

5. The range hood of claim 3, wherein: the linear driving module comprises a driving mechanism (41), a screw rod (421) and a nut (422) serving as an output end, the screw rod (421) extends in the up-down direction and can rotate around the axis of the screw rod under the driving of the driving mechanism (41), the nut (422) is sleeved on the screw rod (421) and is in threaded connection, and the connecting rod (423) and the nut (422) are fixed.

6. The range hood of claim 3, wherein: the upper end of the first smoke baffle (31) is hinged to the left side and the right side of the upper edge of the air inlet (17) of the front side wall (11) through a first hinge (311), a second hinge (321) is arranged at the lower end of the second smoke baffle (32) towards one side in the air inlet assembly (1), the second hinge (321) is provided with two ends which are close to the left end and the right end of the second smoke baffle (32) respectively, and the second hinge (321) is hinged to the connecting rod (423) directly or indirectly.

7. The range hood of claim 1 or 2, wherein: the air inlet assembly (1) further comprises a top wall (15) arranged between the top ends of the front side wall (11) and the rear side wall (12), and an opening (151) is formed in the top wall (15) to enable fluid communication between the air inlet assembly (1) and the air frame (2).