CN220287544U - Fume exhauster - Google Patents

Abstract

The embodiment of the application provides a range hood, relates to the technical field of kitchen appliances, and solves the problem of poor range hood. The range hood comprises: the smoke machine comprises a smoke machine main body, a smoke collecting hood and an oil net device; the smoke collecting hood is arranged below the smoke machine main body and is communicated with the smoke channel. The oil net device is arranged in the fume collecting hood and is connected with the fume collecting hood. The oil screen device comprises: the oil-fume collecting hood comprises an outer oil net, an inner oil net and a guide rail assembly, wherein the outer oil net is connected with the fume collecting hood, and the inner oil net is arranged on one side of the outer oil net, which is close to the oil-fume channel. The guide rail assembly includes: the guide rail is arranged on one side surface of the outer oil net, which is close to the oil smoke channel, and extends along the first direction; the guide post is connected with the inner oil screen and the guide rail, and can move in the guide rail; the guide rail assembly is connected with the outer oil net and the inner oil net, wherein the inner oil net can move along a first direction relative to the outer oil net through the guide rail assembly so as to change the position relationship between meshes of the inner oil net and meshes of the outer oil net.

Description

Fume exhauster

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a range hood.

Background

With the development of scientific technology, the application of the range hood is more and more popular, and the range hood has become one of the indispensable kitchen household appliances in modern families. At present, most of Chinese household kitchens are generally provided with two cooking heads, one of the cooking heads is used singly or two cooking heads are used simultaneously during cooking, most of households do not use two cooking heads for cooking at the same time, one cooking head is used for cooking under most conditions, more oil smoke can be generated, and the other cooking head is used for cooking, so that the generated oil smoke is less.

In the prior art, the air inlet mesh of the oil net device of the range hood is generally designed into a fixed structure, and the left and right air inlet areas of the range hood cannot be adjusted. The negative pressure of the single-side cooker is the same as that of the double-side cooker, and the oil smoke amount of the single-side oil smoke is the same.

The size of the oil smoke generated by a kitchen is different according to different use scenes, and the oil screen device of the traditional range hood can not change the oil smoke sucking amount along with the use of a single-side kitchen range, so that the oil smoke sucking effect is poor.

Disclosure of Invention

The embodiment of the utility model provides a range hood, which solves the problem of changing the amount of fume, improves the fume sucking effect of the range hood, and particularly improves the fume sucking effect of the range hood when a single-side kitchen range is used.

In order to achieve the above object, some embodiments of the present utility model provide the following technical solutions:

the embodiment of the utility model provides a range hood, relates to the technical field of kitchen appliances, and solves the problem of poor oil smoke suction during operation of a kitchen range. The range hood comprises: the smoke machine comprises a smoke machine main body, a smoke collecting hood and an oil net device; the smoke collecting hood is arranged below the smoke machine main body and is communicated with the smoke channel. The oil net device is arranged in the fume collecting hood and is connected with the fume collecting hood. The oil screen device comprises: the oil-fume collecting hood comprises an outer oil net, an inner oil net and a guide rail assembly, wherein the outer oil net is connected with the fume collecting hood, and the inner oil net is arranged on one side of the outer oil net, which is close to the oil-fume channel. The guide rail assembly includes: the guide rail is arranged on one side surface of the outer oil net, which is close to the oil smoke channel, and extends along the first direction; the first direction is parallel to the plane of the outer oil screen; the guide post is connected with the inner oil screen and the guide rail, and can move in the guide rail; the guide rail assembly is connected with the outer oil net and the inner oil net, wherein the inner oil net can move along a first direction relative to the outer oil net through the guide rail assembly so as to change the position relationship between meshes of the inner oil net and meshes of the outer oil net.

Some embodiments of the present utility model provide a range hood that changes the mesh position relationship of an inner oil screen and an outer oil screen through a rail assembly. The guide rail assembly enables the outer oil net and the inner oil net to be connected simply, and the guide rail assembly is simple in structure, easy to assemble, simple in disassembly and installation modes and flexible to use. The inner oil net moves relative to the outer oil net through the guide rail component according to the oil smoke generated by the left and right cooking heads. By changing the position of the inner oil net, the overlapping area of the mesh of the inner oil net and the mesh of the outer oil net in the range hood can be changed, namely the area of the outer oil net which is shielded can be changed, so that the air inlet area can be changed. Thus, the range hood provided by the embodiment of the application can adjust the amount of oil smoke entering the range hood, so that efficient smoking is achieved, the smoking effect is improved, and the use experience of a user is improved. The guide rail assembly can reduce abrasion when the inner oil net moves, is efficient and durable, has low cost, is not easy to damage and has long service life.

In some embodiments, the guide post comprises a sliding sleeve and a pulley, the sliding sleeve being connected to the guide rail and being movable along the guide rail; the pulley is nested in the sliding sleeve and connected with the inner oil net.

In some embodiments, the oil screen apparatus further comprises: the elastic limiting piece is arranged at one end of the guide rail, which is close to the edge of the outer oil net.

In some embodiments, the oil screen device further comprises a driving mechanism and a rocker arm, wherein the driving mechanism is arranged on one side of the outer oil screen, which is close to the oil smoke channel, and is used for driving the inner oil screen to move. The rocker arm is connected with the driving mechanism and the inner oil screen, and the driving mechanism drives the inner oil screen to move through the rocker arm.

In some embodiments, the outer oil screen includes a first region and a second region arranged in a first direction; the inner oil screen comprises a first inner oil screen and a second inner oil screen. The first inner oil net is arranged on one side of the outer oil net, which is close to the oil smoke channel, and corresponds to the first area; the first inner oil net can move along a first direction relative to the outer oil net, when the first inner oil net moves to a first position, meshes of the first inner oil net coincide with meshes of the outer oil net, and when the first inner oil net moves to a second position, the meshes of the first inner oil net are staggered with meshes of the outer oil net.

The second inner oil net is arranged on one side of the outer oil net, which is close to the oil smoke channel, and corresponds to the second area; the second inner oil net can move along the first direction relative to the outer oil net, when the second inner oil net moves to the third position, the meshes of the second inner oil net are overlapped with those of the outer oil net, and when the second inner oil net moves to the fourth position, the meshes of the second inner oil net are staggered with those of the outer oil net.

In some embodiments, the rail assembly includes a first rail assembly for connecting the outer oil screen and the first inner oil screen and a second rail assembly; the second guide rail assembly is used for connecting the outer oil net and the second inner oil net;

the first inner oil net moves along a first direction relative to the outer oil net through the first guide rail assembly; the second inner oil screen moves in the first direction relative to the outer oil screen through the second rail assembly.

In some embodiments, the first rail assembly comprises at least one first rail and at least one first guide post, the at least one first rail being connected to a side surface of the outer oil screen adjacent to the oil smoke channel and extending in a first direction; at least one first guide pillar is connected with a first inner oil network; each first guide rail is connected with at least one first guide pillar, and the first guide pillars can move in the first guide rails so as to drive the first inner oil net to move relative to the outer oil net.

The second guide rail assembly comprises at least one second guide rail and at least one second guide post, and the at least one second guide rail is connected to one side surface of the outer oil net, which is close to the oil smoke channel, and extends along the first direction; at least one second guide pillar is connected with a second inner oil network; each second guide rail is connected with at least one second guide pillar, and the second guide pillars can move in the second guide rails so as to drive the second inner oil net to move relative to the outer oil net.

In some embodiments, the first rail assembly comprises two first rails and four first guide posts, the two first rails are respectively positioned at two sides of the plurality of meshes of the outer oil screen along a second direction, and the second direction is perpendicular to the first direction; each first guide rail is connected with two first guide posts; the second rail assembly includes: the two second guide rails are respectively positioned at two sides of a plurality of meshes of the outer oil net along the second direction, and the first direction is perpendicular to the second direction; each second guide rail is connected with two second guide posts.

In some embodiments, the first rail and the second rail on the same side of the plurality of cells of the outer oil screen are connected at one end that is adjacent to each other.

In some embodiments, the range hood comprises a hood body, a fume collecting hood and an oil screen device, wherein a fume channel is arranged in the hood body, and the fume collecting hood is arranged below the hood body and communicated with the fume channel; the oil net device is arranged in the fume collecting hood and connected with the fume collecting hood, the oil net device comprises an outer oil net, an inner oil net and a guide rail assembly, and the outer oil net is connected with the fume collecting hood; the inner oil net is arranged on one side of the outer oil net, which is close to the oil smoke channel; the guide rail assembly is used for connecting the outer oil net and the inner oil net; the inner oil net can move along a first direction relative to the outer oil net through the guide rail assembly, so that meshes of the inner oil net are relatively overlapped or staggered with meshes of the outer oil net.

Some embodiments of the present disclosure provide a range hood that achieves the benefits of improving smoking.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and do not limit the utility model.

Fig. 1 is a side view of a whole structure of a range hood according to an embodiment of the present application;

fig. 2 is a front view of the internal structure of the whole range hood according to the embodiment of the present application;

fig. 3 is a schematic diagram of an oil screen device of a range hood according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of an inner oil screen after moving according to an embodiment of the present application;

fig. 5 is a schematic view of an internal oil screen and a driving mechanism of a range hood according to an embodiment of the present disclosure;

FIG. 6 is an exploded view of an oil screen device according to an embodiment of the present disclosure;

fig. 7 is a schematic diagram of movement of an inner oil screen according to an embodiment of the present application;

fig. 8 is a schematic diagram of an outer oil network according to an embodiment of the present disclosure;

fig. 9 is a schematic diagram of connection between a guide rail assembly and an inner oil screen and an outer oil screen according to an embodiment of the present application;

fig. 10 is an enlarged view of area a of fig. 9;

fig. 11 is a diagram of an external oil screen guide rail according to an embodiment of the present application;

fig. 12 is a guide rail connection structure diagram provided in an embodiment of the present application;

FIG. 13 is an enlarged view of region B of FIG. 12;

FIG. 14 is an enlarged view of area C of FIG. 7;

fig. 15 is a schematic view of a guide post according to an embodiment of the present disclosure;

FIG. 16 is a detailed view of a pulley and sliding sleeve provided in an embodiment of the present application;

FIG. 17 is a top view of a guide post according to an embodiment of the present disclosure;

FIG. 18 is a longitudinal cross-sectional view of a guide post according to an embodiment of the present disclosure;

FIG. 19 is a schematic view of an elastic limiting member according to an embodiment of the present disclosure;

fig. 20 is a schematic diagram of a driving mechanism according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context. In addition, when describing a pipeline, the terms "connected" and "connected" as used herein have the meaning of conducting. The specific meaning is to be understood in conjunction with the context.

In embodiments of the utility model, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In the embodiments of the present utility model, reference numerals such as "351 (35)" appearing in the drawings denote that the component known by the reference numeral is both 351 and 35, while 351 belongs to 35. Other similar reference numerals in embodiments of the utility model are also referred to in this description.

The range hood is a kitchen cleaning type household appliance for purifying the kitchen environment. The fume generated by the fume extractor during cooking contains a plurality of substances harmful to human bodies, and on the other hand, the fume extractor is easy to cause the kitchen environment to become greasy and not easy to clean, so the fume extractor becomes a necessary machine for changing the kitchen environment.

The range hood is arranged above the kitchen range, combustion waste which is generated when the kitchen range burns during cooking can be generated, the range hood can rapidly pump away the waste which is generated when the kitchen range burns and the oil smoke which is harmful to human bodies and is generated in the cooking process, and the range hood is discharged outdoors, so that the combustion waste and the oil smoke which is harmful to the human bodies are prevented from being diffused indoors. The advantage of doing so is that the range hood is adopted to collect the oil smoke in a condensing way, so that the indoor air pollution is reduced. The range hood can play a role in purifying air and also play a role in protecting against toxicity and explosion. In addition, the environment of the kitchen is changed, and the damage of the oil smoke to the environment of the kitchen and the health of human bodies is reduced.

The range hood is fixed through a negative pressure area formed by the fan, the size of the negative pressure is fixed, the amount of the adsorbed and discharged oil smoke is also fixed, and the size of the oil smoke is different according to different use scenes. Therefore, when the single-side kitchen range is used, the existing range hood is used for fixedly sucking the whole kitchen range area, and clean invalid air is sucked in half, so that the suction and exhaust potential of the range hood is seriously wasted, and the smoking effect is poor. On the other hand cooking utensils are all at the during operation, use a kitchen range to cook, can produce more oil smoke like this, use another kitchen range to cook, the oil smoke that produces like this is less, and the range hood on the market at present, its air intake general design is fixed structure, and the air inlet area is unable to be adjusted about, leads to smoking volume inhomogeneous, and smoking effect is relatively poor.

Based on the above, the embodiment of the utility model provides a range hood, wherein an oil net device is arranged in the range hood, so that the problem that the smoking amount cannot be changed along with the use of a kitchen range is solved, and the smoking effect of the range hood is improved.

In some embodiments, as shown in fig. 1, 2, 3 and 4, a range hood 1000 provided herein includes a hood main body 1, a fume collecting hood 2 and an oil screen device 3, a fume collecting hood 2 is disposed below the hood main body 1, and the fume collecting hood 2 is communicated with the fume collecting hood.

As shown in fig. 1 and 2, the tobacco machine main body 1 includes: a frame 11, a fan assembly 12 and a smoke outlet assembly 13. The fan assembly 12 and the cigarette discharging assembly 13 are both arranged in the cigarette machine main body 1, and the fan assembly 12 comprises: the volute 111, an impeller 112 provided in the volute 111, and a motor 113 for driving the impeller 112 to rotate relative to the volute 111, and the smoke outlet assembly 13 communicates with an air outlet of the volute 111.

The motor 113 is a core part of the range hood, and when the motor 113 drives the impeller 112 to rotate, air in the housing 11 can be discharged outside through the smoke discharging assembly 13, thereby generating a negative pressure region in the housing 11. At this time, the oil smoke can be sucked into the frame 11 by the negative pressure area, then oil-gas separation is carried out in the frame 11, grease particles are condensed into oil drops and then collected by an oil way, and the purified smoke is discharged outside to form an oil smoke channel.

Meanwhile, in order to accommodate the less discharged oil smoke, the range hood 1000 further includes a fume collecting hood 2 as shown in fig. 1, 2, 3 and 4, and the fume collecting hood 2 may be disposed under the hood body 1. The smoke collecting cavity is formed inside the smoke collecting cover 2, one end, close to the smoke collecting cover 2, of the smoke machine main body 1 is the top of the funnel-shaped structure, and the smoke collecting cover 2 is connected with the oil smoke channel below the smoke machine main body 1.

The end of the fume collecting hood 2 far away from the fume collecting hood main body 1 is an opening with a funnel-shaped structure, so that fume can enter and be contained in the fume collecting hood 2. At this time, the oil smoke can be contained in the fume collecting hood 2 under the action of negative pressure, and the phenomenon of overflowing and diffusing a large amount of oil smoke is prevented.

The oil smoke channel is arranged right above the oil smoke rising and at the same time is arranged at the center position in the frame 11 of the main body 1 of the range hood 1000, and the oil smoke enters the frame 11 of the main body 1 of the range hood 1000 through the oil smoke channel. When the range hood 1000 is opened, waste generated by combustion in a stove and oil smoke harmful to a human body during cooking can be quickly sucked into the frame 11 of the range hood body 1 of the range hood 1000.

In the operation process of the range hood 1000, the range hood 1000 can generate a large amount of noise, and the long-term cooking under the noise can bring adverse reactions such as dizziness, dysphoria, palpitation and the like to a user, so that the use experience of the user is seriously affected. The main noise sources of the range hood 1000 are the fan assembly 12, and the noise of the fan assembly 12 includes the fluid noise generated in the air duct of the fan assembly 12, and the noise of the motor 113, the impeller 112, and the like. Therefore, when the range hood 1000 is used, the silencing plate is arranged on the inner wall of the frame 11 of the range hood 1000, and silencing cotton is arranged in the silencing plate. Noise generated by the fan assembly 12 is absorbed by the noise reduction cotton, thereby achieving the purpose of reducing noise.

Based on the structure of the range hood 1000, when the range hood 1000 works, the range hood 1000 controls the motor 113 to drive the impeller 112 to rotate, so that the impeller 112 can discharge the air in the frame 11 out of the room through the smoke outlet assembly 13, thereby generating a negative pressure area in the frame 11. The rising oil smoke can enter the frame 11 through the oil net device 3 under the suction of the negative pressure area. Then, oil and gas separation is carried out on the oil smoke under the centrifugal action of the impeller 112, grease particles in the oil smoke are thrown to the inner wall of the oil smoke channel by virtue of centrifugal force, and are condensed into oil drops to be collected by an oil way, and the purified smoke is discharged outside through the smoke outlet component 13 after being accelerated by the impeller 112.

As shown in fig. 3 and 4, the range hood 1000 further includes: the oil screen device 3 is arranged in the fume collecting hood 2, is arranged below the fume collecting hood main body 1, and is arranged in the center of the fume collecting hood 2 and connected with the fume collecting hood 2; the surface of the oil screen device 3 is provided with a plurality of meshes 4, so that the oil smoke can enter the smoke machine main body 1 from the oil smoke channel through the oil screen device 3. The oil net device 3 can filter the oil smoke entering the inside of the smoke ventilator main body 1, and the oil net device 3 is tightly connected with the smoke collecting cover 2, so that the problem that the oil smoke enters the inner cavity wall of the smoke collecting cover 2 from the gap of the oil net device 3 and the smoke collecting cover 2 can not occur, the oil smoke is sucked from the mesh 4 in a concentrated manner, and the oil smoke absorbing effect of the smoke ventilator 1000 is improved.

In some embodiments, as shown in fig. 5 and 6, the oil screen device 3 includes: an outer oil screen 31, an inner oil screen 32 and a rail assembly 5, the outer oil screen 31 being connected to the fume collecting hood 2, the outer oil screen 31 comprising at least two areas aligned in a first direction X. The outer oil screen 31 comprises a first area 311 and a second area 312, the first direction X being parallel to the plane of the outer oil screen 31.

In some embodiments, the outer oil screen 31 is rectangular, and the angle between the first direction X and the length direction of the outer oil screen 31 is greater than or equal to 0 ° and less than or equal to 90 °. The angle between the first direction X and the length direction of the outer oil screen 31 may be 0 °, 10 °, 20 °, 30 °, 40 °, 50 °, 60 °, 70 °, 80 °, 90 °, and so on.

Illustratively, the first direction X is at an angle equal to 0 ° to the length of the outer oil screen 31, i.e. the first direction X coincides with the length of the outer oil screen 31.

Illustratively, the first direction X is at an angle equal to 90 ° to the length of the outer oil screen 31, i.e. the first direction X coincides with the width of the outer oil screen 31.

The inner oil net 32 is arranged on one side of the outer oil net 31, which is close to the oil smoke channel, namely, the inner oil net 32 is positioned on the inner side of the outer oil net 31, and at least two inner oil nets 32 are arranged; the inner oil screen 32 includes a first inner oil screen 321 and a second inner oil screen 322, each inner oil screen 32 corresponds to an area of the outer oil screen 31, the first inner oil screen 321 is orthographic projected in the first area 311, the second inner oil screen 322 is orthographic projected in the first area 312, and the inner oil screen 32 is movable along the first direction X relative to the outer oil screen 31.

In some embodiments, as shown in fig. 6, 9 and 10, the guide rail assembly 5 includes a guide rail 51 and a guide post 52, wherein the guide rail 51 is disposed on a surface of the outer oil screen 31 near the oil smoke channel and extends along the first direction X; the guide post 52 is connected with the inner oil screen 32 and is connected with the guide rail 51 at the same time, and the guide post 52 can move in the guide rail 51; the guide rail assembly 5 connects the outer oil screen 31 and the inner oil screen 32, wherein the inner oil screen 32 can move along a first direction X relative to the outer oil screen 31 through the guide rail assembly 5 so as to change the position relationship between the mesh 4 of the outer oil screen 31 and the mesh 4 of the inner oil screen 32, so that the mesh 4 of the inner oil screen 32 and the mesh 4 of the outer oil screen 31 are relatively overlapped or staggered, and the first direction X is parallel to the plane of the outer oil screen 31.

The positional relationship of the mesh 4 of the outer oil net 31 and the mesh 4 of the inner oil net 32 includes examples in which the ratio of the overlapping area of the mesh 4 of the outer oil net 31 and the mesh 4 of the inner oil net 32 to the total area of the mesh 4 may be 0 to 100%, for example: if the overlapping area of the mesh 4 of the outer oil screen 31 and the mesh 4 of the inner oil screen 32 is 50%, a part of half of the area of the mesh 4 of the outer oil screen 31 is blocked by the inner oil screen 32, the mesh 4 of the outer oil screen 31 can only be opened by half, and a small amount of oil smoke can pass through the mesh 4; if the overlapping area of the mesh 4 of the outer oil screen 31 and the mesh 4 of the inner oil screen 32 is 100%, the mesh 4 of the outer oil screen 31 and the mesh 4 of the inner oil screen 32 are completely overlapped, i.e. the mesh 4 of the outer oil screen 31 is completely opened, and the oil smoke reaching the mesh 4 can pass through; if the overlapping area of the mesh 4 of the outer oil screen 31 and the mesh 4 of the inner oil screen 32 is 0%, both the mesh 4 of the outer oil screen 31 and the mesh 4 of the inner oil screen 32 are shielded, the mesh 4 of the outer oil screen 31 is closed, and the oil smoke reaching the mesh 4 is not allowed to pass.

When both cooking ranges are in use, the oil smoke generated by both cooking ranges rises vertically upwards, as shown in fig. 3, if the overlapping area of the mesh 4 of the outer oil net 31 and the mesh 4 of the inner oil net 32 is 100%, the mesh 4 of the outer oil net 31 and the mesh 4 of the inner oil net 32 are completely overlapped, the mesh 4 of the first area 311 and the mesh 4 of the second area 312 of the outer oil net 31 are both in an open state, the suction force of the range hood 1000 is uniformly distributed in the area close to the oil smoke generating point under the mesh 4 of the first area 311 and the mesh 4 of the second area 312, and the generated oil smoke is intensively sucked by the range hood 1000.

When the cooker is used on one side, only one cooking range is used or one cooking range is used for cooking, and the other cooking range is used for cooking, at the moment, more oil smoke is generated by only one side of the cooking range, and no oil smoke or little oil smoke is generated by the other side of the cooking range, as shown in fig. 4, the overlapping area of the mesh 4 of the outer oil screen 31 and the mesh 4 of the inner oil screen 32 is 0%, only the mesh 4 of the first area 311 of the outer oil screen 31 is in an open state, the mesh 4 of the second area 312 of the outer oil screen 31 is in a closed state, the suction force of the range hood 1000 is concentrated in an area close to the oil smoke generating point under the mesh 4 of the first area 311 of the outer oil screen 31, and the generated oil smoke is concentrated and sucked by the range hood 1000.

The guide rail assembly 5 enables the outer oil net 31 and the inner oil net 32 to be connected simply, and the guide rail assembly 5 is simple in structure, easy to assemble, simple in disassembly and installation mode and flexible to use. The inner oil net 32 is moved relative to the outer oil net 31 by the guide rail assembly 5 according to the oil smoke generated by the left and right cooking heads. By changing the position of the inner oil screen 32, the overlapping area of the mesh 4 of the inner oil screen 32 and the mesh 4 of the outer oil screen 31 in the range hood 1000, that is, the area of the outer oil screen 31 covered by the mesh 4 can be changed, so that the air intake area can be changed. The amount of the oil smoke entering the range hood 1000 is regulated, so that efficient smoking is achieved, the smoking effect is improved, and the use experience of a user is improved. The guide rail assembly 5 enables the inner oil net 32 to move more smoothly when the inner oil net 32 moves, and the use of the guide rail assembly 5 can reduce abrasion. The guide rail assembly 5 is efficient, durable, low in cost, not prone to damage and long in service life. When the kitchen range is used by a user, the guide rail assembly 5 can be adjusted according to the lampblack generated by the left kitchen range and the right kitchen range, and the inner oil screen 32 is controlled to move relative to the outer oil screen 31. By changing the position of the inner oil net 32 and changing the overlapping area of the mesh 4 of the inner oil net 32 and the mesh 4 of the outer oil net 31 in the range hood 1000, the area of the outer oil net 31 covered by the mesh 4 can be changed, so that the air inlet area is changed, the suction force is concentrated in the area for generating the oil smoke, the smoking force is increased, the amount of the oil smoke entering the range hood 1000 is regulated, and therefore, efficient smoking is achieved, the smoking effect is improved, and the user experience is improved.

Thus, in some embodiments, as shown in fig. 5, 6, 7, 8, and 11, the outer oil screen 31 includes a first region 311 and a second region 312 aligned in a first direction X; the inner oil screen 32 includes a first inner oil screen 321 and a second inner oil screen 322.

The first inner oil screen 321 is disposed on one side of the outer oil screen 31 near the oil smoke channel and corresponds to the first region 311; the first inner oil screen 321 is movable relative to the outer oil screen 31 in a first direction X, the mesh openings 4 of the first inner oil screen 321 coinciding with the mesh openings 4 of the outer oil screen 31 when the first inner oil screen 321 is moved to the first position, the mesh openings 4 of the first inner oil screen 321 being staggered from the mesh openings 4 of the outer oil screen 31 when the first inner oil screen 321 is moved to the second position.

The second inner oil screen 322 is disposed on a side of the outer oil screen 31 close to the oil smoke channel and corresponds to the second area 312; the second inner oil screen 322 is movable in the first direction X relative to the outer oil screen 31, the mesh openings 4 of the second inner oil screen 321 being coincident with the mesh openings 4 of the outer oil screen 31 when the second inner oil screen 312 is moved to the third position, the mesh openings 4 of the second inner oil screen 322 being staggered from the mesh openings 4 of the outer oil screen 31 when the second inner oil screen 322 is moved to the fourth position.

The outer oil net 31 and the inner oil net 32 are uniformly distributed with elongated meshes 4, a plurality of meshes 4 of the outer oil net 31 are arranged in parallel, a plurality of meshes 4 of the inner oil net 32 are arranged in parallel, and the outer oil net 31 and the inner oil net 32 are arranged in parallel. The strip-shaped mesh 4 is beneficial to increasing the air inlet area, has large air inlet quantity, can not be blocked by greasy dirt, and has simple structure and easy cleaning.

Illustratively, the length direction of the mesh 4 is perpendicular to the first direction X. In this way, the inner oil screen 32 moves a small distance relative to the outer oil screen 31, and the overlapping area of the mesh 4 of the inner oil screen 32 and the mesh 4 of the outer oil screen 31 can be changed greatly.

In the above embodiment, only an example of two positional relationships of the first inner oil screen 321 and the outer oil screen 31, such as the first position and the second position, is given, and in other examples, the first inner oil screen 321 may be moved to other positions, and the overlapping area of the mesh 4 of the first inner oil screen 321 and the mesh 4 of the outer oil screen 31 may be any value in the range of 0 to 100% in proportion to the total area of the mesh 4, for example. For example, the overlapping area of the mesh openings 4 of the first inner oil screen 321 and the mesh openings 4 of the outer oil screen 31 is 50% of the total area of the mesh openings 4, and at this time, the mesh openings 4 of the outer oil screen 31 are in a semi-open state, so that a small amount of oil smoke can be sucked. The positional relationship of the second inner oil net 322 and the outer oil net 31 is also referred to the description of the positional relationship of the first inner oil net 321 and the outer oil net 31.

By changing the position relation of the inner oil net 32 relative to the outer oil net 31, the mesh 4 of the outer oil net 31 is opened or closed, the size of the oil smoke amount entering the oil smoke channel inside the main body 1 of the range hood 1000 is regulated, the flow speed of the air inlet is changed, the discharge rate of the oil smoke is accelerated, the working efficiency of the range hood 1000 is improved, and the smoking effect is improved. In some embodiments, as shown in fig. 6, 9, and 10, rail assembly 5 includes a first rail assembly 53 and a second rail assembly 54, first rail assembly 53 being used to connect outer oil screen 31 and first inner oil screen 321; a second rail assembly 54 for connecting the outer oil screen 31 and the second inner oil screen 322;

wherein the first inner oil screen 321 moves along the first direction X relative to the outer oil screen 31 through the first rail assembly 53; the second inner oil screen 322 is moved in the first direction X relative to the outer oil screen 31 by the second rail assembly 54.

The guide rail assembly 5 enables the outer oil net 31 and the inner oil net 32 to be connected simply, and the guide rail assembly 5 is simple in structure, easy to assemble, simple in disassembly and installation mode and flexible to use. The guide rail assembly 5 can reduce abrasion when the inner oil screen 32 moves, is efficient and durable, has low cost, is not easy to damage and has long service life.

In some embodiments, as shown in fig. 6, the first rail assembly 53 includes at least one first rail 511 and at least one first guide post 521, the at least one first rail 511 being connected to a side surface of the outer oil screen 31 adjacent to the oil smoke channel and extending in the first direction X; at least one first guide post 521 is connected to the first inner oil screen 321; each first guide rail 511 is connected to at least one first guide pillar 521, and the first guide pillars 521 can move in the first guide rails 511 to drive the first inner oil screen 321 to move relative to the outer oil screen 31.

The second rail assembly 54 includes at least one second rail 512 and at least one second guide post 522, the at least one second rail 512 being connected to a side surface of the outer oil screen 31 adjacent to the oil smoke passage and extending in the first direction X; at least one second guide post 522 is connected to a second inner oil screen 322; each second guide rail 512 is connected to at least one second guide post 522, and the second guide posts 522 can move in the second guide rails 512 to drive the second inner oil screen 322 to move relative to the outer oil screen 31.

As shown in fig. 6, 11 and 19, the first guide rail 511 is a rail extending along the first direction X, the first guide rail 511 is U-shaped, and has an opening facing one side of the first guide post 521, one end of the first guide post 521 is clamped in the opening of the first guide rail 511, and can move in the first guide rail 511, the other end of the first guide post 521 is connected with the first inner oil screen 321, and when the first guide post 521 moves, the first inner oil screen 321 can be driven to move relative to the outer oil screen 31. The first guide rail 511 is provided with a square groove structure 33 allowing the first guide post 521 to be assembled, so that the first guide post 521 is convenient to install.

As shown in fig. 6, 11 and 19, the second guide rail 512 is a rail extending along the first direction X, the second guide rail 512 is U-shaped, and the opening faces one side of the second guide post 522, one end of the second guide post 522 is clamped in the opening of the second guide rail 512 and can move in the second guide rail 512, the other end of the second guide post 522 is connected with the second inner oil screen 322, and when the second guide post 522 moves, the second inner oil screen 322 can be driven to move relative to the outer oil screen 31. The second guide rail 512 is provided with a square groove structure 33 allowing the second guide post 522 to be assembled, and the second guide post 522 is convenient to install.

The guide rail assembly 5 comprises a guide pillar 52 and a guide rail 51, the guide pillar 52 can smoothly run on the guide rail 51, meanwhile, the stability is higher, and the guide rail assembly can be fixed at a designated position relative to the guide rail 51, so that the shaking between the inner oil screen 32 and the outer oil screen 31 in the running process of the range hood 1000 is avoided, the relative position is changed, and the range hood effect is influenced. The guide post 52 and the guide rail 51 have low cost, low noise, easy replacement and convenient maintenance, and saves the use cost and the maintenance cost.

In some embodiments, as shown in fig. 6 and 11, the first rail assembly 53 includes two first rails 511 and four first guide posts 521, where the two first rails 511 are respectively located on two sides of the plurality of meshes 4 of the outer oil screen 31 along the second direction, and the first direction X is perpendicular to the second direction; each first guide rail 511 is connected with two first guide posts 521; the second rail assembly 54 includes: two second guide rails 512 and four second guide posts 522, wherein the two second guide rails 512 are respectively positioned at two sides of the plurality of meshes 4 of the outer oil screen 31 along the second direction, and the first direction X is perpendicular to the second direction; each second rail 512 is connected to two second guide posts 522.

The first guide rail component 53 and the second guide rail component 54 are arranged so as not to block the mesh 4 of the outer oil screen 31, and enough air inlet area is reserved on two sides of the strip-shaped mesh 4.

In some embodiments, as shown in fig. 11 and 12, the first guide rail 511 and the second guide rail 512 located at the same side of the plurality of mesh holes 4 of the outer oil net 31 are connected at one end close to each other.

As shown in fig. 13, after the first guide rail 511 and the second guide rail 512 are connected, the structure is fixed, the movement of the inner oil net 32 is more stable, the unstable swing of the inner oil net 32 can not be caused along with the magnitude of wind power, and the noise is reduced. As shown in fig. 14, the first guide rail 511 and the second guide rail 512 are disconnected, and each guide rail assembly 5 individually controls the movement of the inner oil screen 32 relative to the outer oil screen 31, so that a user can select the guide rail according to the usage habit.

In some embodiments, as shown in fig. 6, 15, 16, 17, and 18, the guide post 52 includes a sliding sleeve 37 and a pulley 38, and the sliding sleeve 37 is connected to the guide rail 51 and can move along the guide rail 51; pulley 38 is nested within sliding sleeve 37 and connected to inner oil screen 32.

The first guide post 521 includes a first sliding sleeve 371 and a first pulley 381, where the first sliding sleeve 371 is connected to the first guide rail 511 and can move along the first guide rail 511; the first pulley 381 is nested within the first sliding sleeve 371 and is connected to the first internal oil screen 321. The second guide post 522 includes a second sliding sleeve 372 and a second pulley 382, where the second sliding sleeve 372 is connected to the second guide rail 512 and can move along the second guide rail 512; a second pulley 382 is nested within the second sliding sleeve 372 and is coupled to the second internal oil network 322.

The sliding sleeve 37 freely rolls along with the pulley 38, a screw fastening hole is formed in the pulley 38, the pulley 38 is fastened on the inner oil screen 32 through screws, the sliding sleeve is not easy to fall off, the working efficiency of the oil screen device 3 is improved, and the guide rail assembly 5 and the inner oil screen 32 move more smoothly. The sliding sleeve 37 can make the pulley 38 and the guide rail 51 have larger friction force, and has the effect of improving the anti-skid effect. The pulley 38 can be precisely limited according to the user's needs, so that the inner oil screen 32 can move more precisely and stably. The problems of slipping, falling off, insufficient positioning accuracy and the like of the pulley 38 on the guide rail 51 are avoided.

In some embodiments, as shown in fig. 6, 11, 19, the oil screen device 3 further includes: the elastic limiting piece 39 is arranged at one end of the guide rail 51 close to the edge of the outer oil net 31. The elastic limiting piece 39 comprises a first elastic limiting piece 391 and a second elastic limiting piece 392, and the first elastic limiting piece 391 is arranged at one end of the first guide rail 511 far away from the second guide rail assembly 54; the second elastic limiting member 392 is disposed at an end of the second rail 512 away from the first rail assembly 53.

The elastic limiting piece 39 is mounted on the guide rail 51, the elastic limiting piece 39 always abuts against one side of the guide rail 51, the guide pillar 52 moves to the elastic limiting piece 39, and the guide pillar 52 can be reset through a spring. When the range hood 1000 works, the elastic limiting piece 39 is arranged to avoid contact collision between the guide post 52 and the end part of the guide rail 51; the guide post 52 is connected with the inner oil net 32, and the guide post 52 drives the inner oil net 32 to move, so that the inner oil net 32 is prevented from moving to be separated from the boundary of the outer oil net 31. The impact of the reaction force impact caused by the movement of the guide post 52 can be alleviated. The elastic limiting piece 39 is arranged, so that the guide rail assembly 5 is not easy to wear, collide and loosen, and is more fixed and reliable.

The oil screen device also comprises a driving mechanism and a rocker arm, wherein the driving mechanism is arranged on one side of the outer oil screen, which is close to the oil smoke channel, and is used for driving the inner oil screen to move.

In some embodiments, as shown in fig. 5 and 20, the oil screen device 3 further comprises a driving mechanism 6 and a rocker arm 7, wherein the driving mechanism 6 is arranged on one side of the outer oil screen 31, which is close to the oil smoke channel, and is used for driving the inner oil screen 32 to move. The rocker arm 7 is connected with the driving mechanism 6 and the inner oil net 32, and the driving mechanism 6 drives the inner oil net 32 to move through the rocker arm 7. Wherein the driving mechanism 6 is arranged between the first inner oil net 321 and the second inner oil net 322; the rocker arm 7 comprises a first rocker arm and a second rocker arm, the first rocker arm is connected with the driving mechanism 6 and the first inner oil screen 321, and the driving mechanism 6 drives the first inner oil screen 321 to move through the first rocker arm; the second rocker arm is connected with the driving mechanism 6 and the second inner oil net 322, and the driving mechanism 6 drives the second inner oil net 322 to move through the second rocker arm.

A wind deflector structure 8 is arranged around the driving mechanism 6; the wind shielding plate structure 8 is arranged on one side surface of the inner oil screen 32 opposite to the oil smoke channel; the oil smoke and wind entering the oil screen device 3 can not interfere the operation of the driving mechanism 6, so that the oil smoke is prevented from polluting the driving mechanism 6, and the service life of the driving mechanism 6 is prolonged. The driving mechanism 6 is provided with a motor, and a rocker arm 7 driven by the motor. The driving mechanism 6 selectively drives the inner oil screen 32 to move by operation control of a user. The setting of actuating mechanism 6 can be accurate drive interior oil net 32 remove, need not user manual control, need not the manual regulation interior oil net 32 and remove, more intelligent.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A range hood, comprising:

the smoke ventilator main body is internally provided with a smoke channel;

the fume collecting hood is arranged below the fume extractor main body and is communicated with the fume channel;

the oil net device is arranged in the fume collecting hood and is connected with the fume collecting hood;

the oil screen device comprises:

the outer oil net is connected with the fume collecting hood;

the inner oil net is arranged on one side of the outer oil net, which is close to the oil smoke channel;

the guide rail assembly is used for connecting the outer oil net and the inner oil net;

the guide rail assembly includes:

the guide rail is connected to one side surface of the outer oil screen, which is close to the oil smoke channel, and extends along a first direction, and the first direction is parallel to the plane of the outer oil screen;

the guide post is connected with the inner oil screen and the guide rail, and can move in the guide rail;

the inner oil screen can move along the first direction relative to the outer oil screen through the guide rail assembly so as to change the position relationship between the meshes of the inner oil screen and the meshes of the outer oil screen.

2. The range hood of claim 1, wherein the guide post comprises:

the sliding sleeve is connected with the guide rail and can move along the guide rail;

and the pulley is nested in the sliding sleeve and connected with the inner oil screen.

3. The range hood of claim 1 wherein said oil screen assembly further comprises:

the elastic limiting piece is arranged at one end of the guide rail, which is close to the edge of the outer oil net.

4. The range hood of claim 1 wherein said oil screen assembly further comprises:

the driving mechanism is arranged on one side of the outer oil net, which is close to the oil smoke channel, and is used for driving the inner oil net to move;

the oil screen device further comprises:

the rocker arm is connected with the driving mechanism and the inner oil screen, and the driving mechanism drives the inner oil screen to move through the rocker arm.

5. The range hood of any one of claims 1-4 wherein the outer oil screen includes a first region and a second region aligned along the first direction;

the inner oil screen comprises:

the first inner oil net is arranged on one side of the outer oil net, which is close to the oil smoke channel, and corresponds to the first area; the first inner oil net can move along a first direction relative to the outer oil net, when the first inner oil net moves to a first position, meshes of the first inner oil net are overlapped with meshes of the outer oil net, and when the first inner oil net moves to a second position, meshes of the first inner oil net are staggered with meshes of the outer oil net;

the second inner oil net is arranged on one side of the outer oil net, which is close to the oil smoke channel, and corresponds to the second area; the second inner oil net can move along the first direction relative to the outer oil net, when the second inner oil net moves to a third position, the meshes of the second inner oil net are overlapped with those of the outer oil net, and when the second inner oil net moves to a fourth position, the meshes of the second inner oil net are staggered with those of the outer oil net.

6. The range hood of claim 5, wherein the rail assembly comprises:

the first guide rail assembly is used for connecting the outer oil net and the first inner oil net;

the second guide rail assembly is used for connecting the outer oil net and the second inner oil net;

the first inner oil screen can move along a first direction relative to the outer oil screen through the first guide rail assembly; the second inner oil screen is movable in a first direction relative to the outer oil screen via the second rail assembly.

7. The range hood of claim 6, wherein the first rail assembly comprises:

at least one first guide rail connected to a side surface of the outer oil screen, which is close to the oil smoke channel, and extending in the first direction;

at least one first guide post connected with the first inner oil net; each first guide rail is connected with at least one first guide pillar, and the first guide pillars can move in the first guide rails so as to drive the first inner oil screen to move relative to the outer oil screen;

the second rail assembly includes:

at least one second guide rail connected to a side surface of the outer oil screen, which is close to the oil smoke channel, and extending in the first direction;

at least one second guide post connected with the second inner oil net; each second guide rail is connected with at least one second guide pillar, and the second guide pillars can move in the second guide rails so as to drive the second inner oil screen to move relative to the outer oil screen.

8. The range hood of claim 7, wherein the first rail assembly comprises:

the two first guide rails are respectively positioned at two sides of a plurality of meshes of the outer oil net along a second direction, and the first direction is perpendicular to the second direction;

four first guide posts, wherein each first guide rail is connected with two first guide posts;

the second rail assembly includes:

the two second guide rails are respectively positioned at two sides of a plurality of meshes of the outer oil net along a second direction, and the first direction is perpendicular to the second direction;

and each second guide rail is connected with two second guide posts.

9. The range hood of claim 8, wherein the first rail and the second rail on the same side of the plurality of cells of the outer oil screen are connected at one end thereof adjacent to each other.

10. A range hood, comprising:

the smoke ventilator main body is internally provided with a smoke channel;

the fume collecting hood is arranged below the fume extractor main body and is communicated with the fume channel;

the oil net device is arranged in the fume collecting hood and is connected with the fume collecting hood;

the oil screen device comprises:

the outer oil net is connected with the fume collecting hood;

the inner oil net is arranged on one side of the outer oil net, which is close to the oil smoke channel;

the guide rail assembly is used for connecting the outer oil net and the inner oil net;

the inner oil screen can move along a first direction relative to the outer oil screen through the guide rail assembly so that the mesh holes of the inner oil screen are relatively overlapped or staggered with the mesh holes of the outer oil screen; the first direction is parallel to the plane of the outer oil screen.