CN216557268U

CN216557268U - Cooking fume exhauster

Info

Publication number: CN216557268U
Application number: CN202122703172.3U
Authority: CN
Inventors: 余将存; 曹元�; 梁雪斐; 陈瑞
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-05-17
Anticipated expiration: 2031-11-03

Abstract

The utility model discloses a range hood, which comprises an air inlet component and a fan component arranged above the air inlet component, and is characterized in that: range hood is still including connecting the connecting tube between air inlet subassembly and fan subassembly, the inboard of air inlet subassembly, connecting tube and the inboard fluid intercommunication of fan subassembly, the connecting tube can vertically stretch out and draw back to drive the relative fan subassembly longitudinal movement of air inlet subassembly, the fan subassembly is fixed on first externally mounted basis, works as during the connecting tube shrink, the air inlet subassembly can be located second externally mounted basis, works as when the connecting tube stretches out, the air inlet subassembly can be located the below on second externally mounted basis. Compared with the prior art, the utility model has the advantages that: can carry out lifting control to the air inlet subassembly, can realize hiding whole when not using.

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 is used as an essential kitchen appliance for each family, and has the functions of sucking oil smoke from an air inlet through an impeller rotating at a high speed in a volute of a fan assembly, filtering the oil smoke by using the impeller, and discharging the filtered oil smoke from an air outlet to finish the purification work of kitchen air.

The Chinese utility model with the application number of 202020944840.4 discloses a range hood, which comprises a shell, a baffle, a lifting device, a driving device and a linkage component, wherein, a first air inlet is arranged on the shell, the baffle is pivotally connected with the shell, the baffle can rotate to the position for shielding the first air inlet and the position for opening the first air inlet, a second air inlet is arranged on the lifting device, the lifting device is slidably connected with the shell along the vertical direction, the driving device is arranged between the shell and the lifting device, the driving device is used for driving the lifting device to slide, the linkage component comprises a rotating rod, a first connecting rod and a second connecting rod, the rotating rod is pivotally connected with the shell, the first end of the first connecting rod is pivotally connected with the lifting device, the second end of the first connecting rod is pivotally connected with the first end of the rotating rod, the second end of the rotating rod is pivotally connected with the first end of the second connecting rod, the second end of the second connecting rod is pivotally connected with the baffle plate, so that the baffle plate opens the first air inlet when the lifting device descends.

The partial assembly that can only go up and down to air inlet subassembly (casing and elevating gear's combination) of above-mentioned patent, can't go up and down to air inlet subassembly's whole, can't realize carrying out whole the hiding to the range hood when not using.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a range hood aiming at the defects of the prior art, wherein the range hood can control the lifting of an air inlet assembly and can hide the whole range hood when not in use.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a range hood, includes air inlet subassembly and sets up the fan subassembly in air inlet subassembly top, its characterized in that: range hood is still including connecting the connecting tube between air inlet subassembly and fan subassembly, the inboard of air inlet subassembly, connecting tube and the inboard fluid intercommunication of fan subassembly, the connecting tube can vertically stretch out and draw back to drive the relative fan subassembly longitudinal movement of air inlet subassembly, the fan subassembly is fixed on first externally mounted basis, works as during the connecting tube shrink, the air inlet subassembly can be located second externally mounted basis, works as when the connecting tube stretches out, the air inlet subassembly can be located the below on second externally mounted basis.

In order to realize the lift of air inlet subassembly, connecting tube includes that two at least pipe connections form, and lifting fit between the adjacent pipeline, connecting tube includes and is connected fixed elementary pipeline and is connected fixed last stage pipeline with the air inlet subassembly with fan frame.

Preferably, the connecting pipeline from top to bottom includes first pipeline, second pipeline as the primary pipeline and the third pipeline as the final stage pipeline in proper order, first pipeline and second pipeline lifting fit, second pipeline and third pipeline lifting fit.

In order to realize air inlet and enlarge the smoke collecting range, the air inlet component comprises an air inlet which is arranged towards the front side, and the range hood further comprises a smoke baffle which can open and close the air inlet.

In order to control the lifting of the connecting pipeline and the adjustment of the opening angle of the smoke baffle plate according to the oil smoke concentration, the range hood further comprises an oil smoke concentration sensor which is used for detecting the oil smoke concentration and controlling the lifting of the connecting pipeline and the opening angle of the smoke baffle plate, so that the matching of the oil smoke absorption effect and the height of a user is improved, and the view line is prevented from being blocked.

Preferably, to reduce the noise of the fan assembly, the first external mounting base is a ceiling and the second external mounting base is a wall cabinet.

In order to save space in the kitchen, the connecting duct is flat.

Compared with the prior art, the utility model has the advantages that: the connecting pipeline capable of driving the air inlet assembly to lift is arranged, so that when the range hood does not work (the connecting pipeline is completely contracted), the air inlet assembly can be hidden in the second external mounting base, and when the range hood works (the connecting pipeline is expanded), the air inlet assembly can move downwards below the second external mounting base; through setting up oil smoke concentration sensor to can come the lift of control connecting tube and the opening angle who keeps off the cigarette board according to oil smoke concentration and adjust.

Drawings

Fig. 1 is a schematic view of a range hood according to an embodiment of the present invention in a non-operating state;

FIG. 2 is a schematic view of the range hood according to the embodiment of the present invention;

FIG. 3 is a schematic view of the range hood according to the embodiment of the present invention when the connecting duct is not extended;

fig. 4 is a schematic view of the range hood according to the embodiment of the present invention when the first duct and the second duct of the connection duct are unfolded;

fig. 5 is a schematic view of the range hood according to the embodiment of the present invention when the connecting duct is fully extended.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

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 5, a range hood includes an air intake assembly 1, a fan assembly 2 disposed above the air intake assembly 1, and a connecting pipe 3 connected between the air intake assembly 1 and the fan assembly 2.

The inner side of the air intake assembly 1, the inner side of the connecting pipeline 3 and the inner side of the fan assembly 2 are in fluid communication. Connecting tube 3 can vertically stretch out and draw back to drive air inlet subassembly 1 relative fan subassembly 2 longitudinal movement.

The connecting pipe 3 includes a first pipe 31, a second pipe 32 and a third pipe 33 from top to bottom. First pipeline 31 and second pipeline 32 lifting fit, second pipeline 32 and third pipeline 33 lifting fit, first pipeline 31 is connected with fan subassembly 2, and third pipeline 33 is connected with air inlet subassembly 1. Alternatively, the connecting pipeline 3 may be formed by connecting two pipelines or more than three pipelines, as long as the adjacent pipelines are connected in a lifting manner, and a primary pipeline connected and fixed with the fan frame 2 and a final pipeline connected and fixed with the air intake component 1 are provided.

Referring to fig. 1-2, the fan assembly 2 is fixedly disposed within a ceiling forming a first external mounting base 100. When the connecting pipe 3 is contracted, the air intake component 1 can be positioned in the second external installation base 200, and when the connecting pipe 3 is expanded, the air intake component 1 can be positioned below the second external installation base 200, and the second external installation base 200 in the embodiment is a wall cabinet.

The lifting coordination between the corresponding pipelines can be realized through a motion mechanism, for example, a gear mechanism driven by a motor is arranged at the inner sides of the left side and the right side of the first pipeline 31, a rack mechanism matched with the gear mechanism is arranged at the outer sides of the left side and the right side of the second pipeline 32, and when the motor drives the gear mechanism to rotate, the gear mechanism drives the rack mechanism to move up and down, so that the lifting of the second pipeline 32 is realized. The same motion mechanism may be used for the lifting engagement between the third conduit 33 and the second conduit 32. The motion mechanism is not limited to a motor, a gear and a rack mechanism, and can also be other existing linear driving modules, such as a combination of an electric push rod and a motor screw nut.

Referring to fig. 3 to 5, the air intake assembly 1 includes an air inlet 11 opened toward the front side, and a smoke barrier 4 capable of opening or closing the air inlet 11 by turning over is further disposed at the air inlet 11. The top of the smoke baffle 4 is rotatably connected with the upper part of the air inlet 11 of the air inlet component 1, and can be driven by a driving mechanism such as a motor to realize deflection, the deflection angle is 0-90 degrees, and the length of the smoke baffle 4 in the front-back direction can reach 30 cm.

When the range hood works, the movement mechanism between the first pipeline 31 and the second pipeline 32 works to enable the second pipeline 32 to descend to the maximum, then the movement mechanism between the second pipeline 32 and the third pipeline 33 works to enable the third pipeline 33 to descend, and meanwhile, the driving mechanism of the smoke baffle 4 is controlled to work, and the smoke baffle 4 starts to expand.

After the culinary art is finished, range hood closes, the motion work between second pipeline 32 and the third pipeline 33, thereby third pipeline 33 upwards rises, actuating mechanism drive keeps off cigarette board 4 and begins to close simultaneously, after keeping off cigarette board 4 and getting into the closure state and third pipeline 33 packs up and finishes, the motion work between first pipeline 31 and the second pipeline 32, second pipeline 32 begins to rise, until rising to the minimum department of stroke, range hood can draw in completely to the hanging cupboard this moment, the air inlet subassembly 1 and the connecting tube 3 of platykurtic can reduce occupation space by a wide margin.

The range hood further comprises an oil smoke concentration sensor 5 for detecting the concentration of oil smoke, the connecting pipeline 3 can realize lifting adjustment according to a detection signal of the oil smoke concentration sensor 5, and the smoke baffle 4 can realize opening angle adjustment. The oil smoke concentration sensor 5 can be arranged on the air inlet component 1.

In the operation process of the range hood, the smoke baffle 4 realizes the free adjustment of the angle according to the concentration of the oil smoke generated by cooking, and when the smoke baffle 4 performs the angle adjustment, the height of the third pipeline 33 is adjusted along with the smoke baffle 4 considering the problem that the smoke baffle 4 shields the view line of the cooking. Note that the oil smoke concentration in normal cooking is N1, the oil smoke concentration in a stir-fry state is N2, the visual angle formed by the innermost edge of the cooker viewed by a cook standing is α, and the length of the smoke barrier 4 in the front-rear direction is L.

When the concentration of cooking oil smoke is less than N1, the concentration of the cooking oil smoke is less, and the phenomenon of diffusion and escape of the cooking oil smoke is also moreSmall, can realize better water conservancy diversion effect through keeping off 4 slopes of cigarette board. At the moment, the smoke baffle plate 4 can be unfolded to be orthogonal to the sight of a person, meanwhile, the third pipeline 33 descends, so that the lower edge of the smoke baffle plate 4 is in contact with the sight, the best oil smoke absorption effect under the premise that the sight is not blocked is achieved, and the deflection angle formed by the smoke baffle plate 4 and the vertical direction is marked as theta₁。

When the concentration of the oil smoke is between N1 and N2, the smoke baffle 4 is continuously unfolded, the second pipeline 32 descends at the same time, and the deflection angle of the smoke baffle 4 is theta₂The third duct 33 has a lowered height d, d ═ lx [ cos θ [ c ] ]₁-tanα×(sinθ₂-sinθ₁)]。

When the concentration of the oil smoke reaches N2, the smoke baffle 4 reaches the horizontal state, theta₂Close to 90 degrees, the range of the smoke gathering of the smoke baffle plate 4 reaches the maximum at the moment, and the adsorption effect on the oil smoke also reaches the strongest.

When oil smoke concentration continues to increase, under the prerequisite of guaranteeing the sight, need promote the amount of wind, realized better smoke exhaust effect.

Claims

1. The utility model provides a range hood, includes air inlet subassembly (1) and sets up fan subassembly (2) in air inlet subassembly (1) top, its characterized in that: range hood is still including connecting in connecting pipeline (3) between air inlet subassembly (1) and fan subassembly (2), the inboard of inboard, connecting pipeline (3) of air inlet subassembly (1) and the inboard fluid intercommunication of fan subassembly (2), connecting pipeline (3) can vertically stretch out and draw back to drive air inlet subassembly (1) fan subassembly (2) longitudinal movement relatively, fan subassembly (2) are fixed on first externally mounted basis (100), work as during connecting pipeline (3) shrink, air inlet subassembly (1) can be located second externally mounted basis (200), works as when connecting pipeline (3) are stretched out, air inlet subassembly (1) can be located the below of second externally mounted basis (200).

2. The range hood of claim 1, wherein: connecting tube (3) form including two at least pipe connection, go up and down to cooperate between the adjacent pipeline, connecting tube (3) are including being connected fixed primary pipeline and being connected fixed final stage pipeline with air inlet subassembly (1) with the fan frame.

3. The range hood of claim 2, wherein: connecting tube (3) include first pipeline (31), second pipeline (32) as the primary pipeline and third pipeline (33) as the final stage pipeline from top to bottom in proper order, first pipeline (31) and second pipeline (32) lifting fit, second pipeline (32) and third pipeline (33) lifting fit.

4. The range hood according to any one of claims 1 to 3, wherein: the air inlet component (1) comprises an air inlet (11) formed towards the front side, and the range hood further comprises a smoke baffle (4) capable of opening and closing the air inlet (11).

5. The range hood of claim 4, wherein: the range hood also comprises an oil smoke concentration sensor (5) which is used for detecting the oil smoke concentration so as to control the lifting of the connecting pipeline (3) and the opening angle of the smoke baffle plate (4).

6. The range hood according to any one of claims 1 to 3, wherein: the first external mounting base (100) is a suspended ceiling and the second external mounting base (200) is a wall cabinet.

7. The range hood according to any one of claims 1 to 3, wherein: the connecting duct (3) is flat.