CN217031289U - Cooking fume exhauster - Google Patents

Abstract

The utility model discloses a range hood, comprising: the smoke collecting cover is internally provided with a smoke inlet cavity and a smoke exhaust cavity, the smoke inlet cavity is positioned below or in front of the smoke exhaust cavity, the front side of the smoke collecting cover is provided with an air inlet communicated with the smoke inlet cavity, the left side and/or the right side of the smoke inlet cavity are/is provided with a smoke suction port, and the smoke exhaust cavity is communicated with the smoke inlet cavity through the smoke suction port; the air cabinet comprises an air box and a fan arranged in the air box, the air box is arranged at the top of the fume collecting cover and communicated with the fume exhaust cavity, and after the fan is started, a low-pressure vortex area can be generated on the left side or the right side of the fume inlet cavity close to the fume suction port, so that the fume is sucked into the fume inlet cavity and then forms rotary airflow. The utility model forms the rotating airflow in the smoke inlet cavity, so that the negative pressure area moves downwards outwards, the smoke suction effect is improved, meanwhile, the purpose of separating oil and smoke can be achieved without an oil screen, the oil screen can be omitted, the cost is low, and the oil screen is omitted from being cleaned by a user.

Description

Cooking fume exhauster

Technical Field

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

Background

At present, the smoking mode of side smoking machine is mostly the panel and outwards turns over to open and hold together the cigarette to in order not to influence the placing of pan, the design of turning over the board generally all is the upper portion of cigarette machine, and can design the oil net and carry out the oil smoke separation in the inside of turning over the board, this kind of cigarette machine has following problem in the use:

1. when oil smoke is exhausted, the smoke path is too long, the smoke moves upwards firstly, the smoke is hit to the turning plate, the smoke is collected by the turning plate to enter the air inlet, and then the smoke enters the air cabinet through the oil screen to be exhausted, and in the smoke exhausting mode, part of smoke diffuses to the periphery in the rising process to influence the use of a user;

2. when the turning plate is opened, a part of sight line can be shielded, and after the turning plate is used for a long time, the surface of the turning plate has the problem of oil dripping;

3. after the oil screen is used for a long time, the surface of the oil screen can adsorb a large amount of oil, a user is required to disassemble and clean the oil screen, and the smoking effect can be influenced.

Disclosure of Invention

The utility model aims to solve at least one of the problems in the prior related art to a certain extent, and therefore, the utility model provides the range hood, which improves the smoking effect by forming rotary airflow in the smoke inlet cavity to enable the negative pressure region to move downwards outwards, can achieve the purpose of oil-smoke separation without an oil net, can save the oil net, has low cost and avoids the cleaning of the oil net by a user.

According to the range hood that provides above-mentioned, it realizes through following technical scheme:

a range hood, comprising: the smoke collecting cover is internally provided with a smoke inlet cavity and a smoke exhaust cavity, the smoke inlet cavity is positioned below or in front of the smoke exhaust cavity, the front side of the smoke collecting cover is provided with an air inlet communicated with the smoke inlet cavity, the left side and/or the right side of the smoke inlet cavity are/is provided with a smoke suction port, and the smoke exhaust cavity is communicated with the smoke inlet cavity through the smoke suction port; the wind cabinet, the wind cabinet include bellows and install in fan in the bellows, bellows set up in the top and the intercommunication of collection petticoat pipe the chamber of discharging fume starts behind the fan, can advance the smoke chamber and be close to the left side or the right side of smoking mouth produce the low pressure vortex district, thereby make the flue gas inhale form rotatory air current behind the smoking intracavity.

In some embodiments, the smoking port is provided on the left side of the top surface and/or the right side of the top surface of the smoking cavity.

In some embodiments, the bottom surface of the smoke intake cavity is arranged obliquely in the vertical direction, and/or the top surface of the smoke intake cavity is arranged obliquely in the vertical direction.

In some embodiments, the smoke collection cover further comprises a condensation plate assembly, a smoke collection cavity is formed inside the smoke collection cover, the condensation plate assembly is installed in the smoke collection cavity and divides the smoke collection cavity into an upper cavity and a lower cavity, the upper cavity forms the smoke discharge cavity, and at least part of the lower cavity forms the smoke inlet cavity; the left side and/or the right side of the condensation plate component are/is provided with the smoke suction ports, or the smoke suction ports are formed between the condensation plate component and the side wall of the smoke collection cavity.

In some embodiments, the condensation plate assembly includes a condensation plate disposed within and connected to the smoke collection chamber, the smoke suction port is formed between the condensation plate and a left side wall of the smoke collection chamber, and/or the smoke suction port is formed between the condensation plate and a right side wall of the smoke collection chamber.

In some embodiments, the condensation plate assembly further comprises an adjusting plate, the adjusting plate is movably connected to one side of the condensation plate close to the smoking port, and the ventilation area of the smoking port is adjusted by matching the adjusting plate with the smoking port.

In some embodiments, an end of the modulation plate proximate the condensing plate is rotatably coupled to the condensing plate; or the adjusting plate is connected with the condensing plate in a sliding mode, and a guide structure is arranged between the adjusting plate and the condensing plate.

In some embodiments, the smoke guide plate assembly is movably arranged in the smoke inlet cavity and used for opening the air inlet in an inward movement mode and closing the air inlet in an outward movement mode.

In some embodiments, the smoke collecting hood further comprises a driving assembly, the lower end of the smoke guide plate assembly is rotatably connected with the smoke collecting hood, the driving assembly is arranged in the smoke inlet cavity, the output end of the driving assembly is connected with the smoke guide plate assembly, and the driving assembly is used for driving the smoke guide plate assembly to turn inwards to open the air inlet or driving the smoke guide plate assembly to turn outwards to close the air inlet.

In some embodiments, a mounting cavity located below the smoke inlet cavity and a guide groove arranged in the front-back direction are further arranged inside the smoke collecting hood, the mounting cavity is communicated with the smoke inlet cavity through the guide groove, and a positioning part is arranged in the mounting cavity; the driving assembly is arranged in the mounting cavity; the cigarette guiding plate assembly comprises a cigarette guiding plate and a swing arm, the cigarette guiding plate is rotatably arranged in the cigarette inlet cavity, the swing arm movably penetrates through the guide groove, one end of the guide groove is connected with the cigarette guiding plate, and the other end of the guide groove is connected with the positioning portion and the output end of the driving assembly respectively.

Compared with the prior art, the utility model at least comprises the following beneficial effects:

1. according to the range hood, the air inlet is formed in the front of the smoke collecting hood, the smoke inlet cavity communicated with the air inlet is additionally arranged in the smoke collecting hood, and the smoke suction port is formed in the left side or the right side of the smoke inlet cavity, so that after a fan of the range hood is started, a low-pressure vortex area is generated on the front of the smoke inlet cavity, namely the back of a panel of the smoke collecting hood, close to the air inlet, and accordingly smoke is sucked into the smoke inlet cavity to form rotary airflow, the negative pressure area moves downwards outwards, smoke is prevented from escaping, and the smoke suction effect is improved;

2. the flue gas inhales and forms rotatory air current behind the smoke inlet chamber, runs into smoke inlet chamber top surface after, and the grease condenses to smoke inlet chamber top surface on, reaches the purpose of oil smoke separation, can save the oil net of air intake and/or smoke suction mouth department simultaneously, and reduce cost avoids the user to wash the oil net from, avoids influencing the oil absorption effect because of the setting of oil net.

Drawings

Fig. 1 is a schematic structural diagram of a range hood in an embodiment of the utility model;

fig. 2 is a sectional view of a range hood in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of the range hood according to the embodiment of the present invention, in which a panel is hidden;

FIG. 4 is a schematic diagram illustrating the flow direction of the inlet air of the fan of the range hood according to the embodiment of the present invention;

FIG. 5 is a schematic structural view of a cold plate assembly in an embodiment of the present invention;

FIG. 6 is a schematic view of the structure of a chamber partition in the embodiment of the present invention;

fig. 7 is a right side view of a range hood in an embodiment of the present invention, with the smoke deflector assembly in a maximum open position;

FIG. 8 is an enlarged view of portion A of FIG. 7;

FIG. 9 is a left side elevational view of the range hood in an embodiment of the present invention with the smoke deflector assembly in an intermediate open position;

fig. 10 is a left side view of the range hood according to the embodiment of the present invention, in which the smoke guide plate assembly is in a closed position.

Reference numerals: the smoke collecting cover comprises a smoke collecting cover 1, an air inlet 101, a smoke suction port 102, a guide groove 103, a transverse plate 104, a smoke inlet cavity 11, a smoke exhaust cavity 12, an installation cavity 13 and a positioning part 131;

a wind cabinet 2, a fan 21;

the smoke guide plate component 3, the smoke guide plate 31 and the swing arm 32;

the condensation plate component 4, the condensation plate 41, the flanging 411, the strip-shaped groove 412, the gap 413 and the adjusting plate 42;

a drive assembly 5; cavity separator 6, draw-in groove 61.

Detailed Description

The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications of the embodiments of the utility model, or equivalent substitutions for parts of technical features without departing from the spirit of the utility model, should be included in the scope of the claims of the utility model.

Referring to fig. 1-4, the present embodiment provides a range hood, which includes a smoke collecting hood 1 and an air cabinet 2, a smoke inlet cavity 11 and a smoke discharge cavity 12 are disposed inside the smoke collecting hood 1, the smoke inlet cavity 11 is located below or in front of the smoke discharge cavity 12, an air inlet 101 communicating with the smoke inlet cavity 11 is disposed on the front side (i.e., a panel or a front side plate) of the smoke collecting hood 1, a smoke suction port 102 is disposed on the left side and/or the right side of the smoke inlet cavity 11, and the smoke discharge cavity 12 is communicated with the smoke inlet cavity 11 through the smoke suction port 102. The wind cabinet 2 comprises a wind box (not shown in the figure) and a fan 21 arranged in the wind box, wherein the wind box is fixedly arranged at the top of the smoke collecting cover 1 and communicated with the smoke exhaust cavity 12.

In this embodiment, the smoke inlet cavity 11 is located below the smoke outlet cavity 12. Two smoke inlet chambers 11 which are arranged side by side are arranged on the left side and the right side in parallel at intervals in the smoke collecting hood 1, two air inlets 101 which are arranged on the left side and the right side in parallel are arranged on a panel of the smoke collecting hood 1, the left air inlet 101 is communicated with the left smoke inlet chamber 11, and the right air inlet 101 is communicated with the right smoke collecting chamber 11, so that double-cavity double suction is realized.

A smoke suction port 102 is arranged on the left side of the left smoke inlet cavity 11, so that after the fan 21 is started, a low-pressure vortex region can be generated on the left side of the left smoke inlet cavity 11, namely, a low-pressure vortex region is generated at the position, on the left side of the air inlet 101, of the front surface of the left smoke inlet cavity 11, smoke is sucked into the left smoke inlet cavity 11 to form a rotating air flow, a rotating air path is formed by utilizing the karman vortex street principle, the speed of the smoke flow is favorably accelerated, the negative pressure region moves downwards, the smoke is prevented from escaping, especially, the smoke suction effect of the smoke escaping towards the left outer side of the smoke collecting cover 1 is better, and the left side smoke suction effect is improved. Similarly, a smoke suction port 102 is arranged on the right side of the right smoke inlet cavity 11, so that after the fan 21 is started, a low-pressure vortex area can be generated on the right side of the right smoke inlet cavity 11, namely, the low-pressure vortex area is generated at the position on the right side of the air inlet 101 on the front side of the right smoke inlet cavity 11, so that smoke is sucked into the right smoke inlet cavity 11 to form rotary airflow, the speed of the smoke is increased, the negative pressure area moves downwards outwards, the smoke is prevented from escaping, and the right smoke suction effect is improved.

It can be seen that, in the range hood of the present embodiment, the front surface of the smoke collecting hood 1 is provided with the air inlet 101, the smoke inlet cavity 11 communicated with the air inlet 101 is additionally arranged inside the smoke collecting hood 1, and the left side or the right side of the smoke inlet cavity 11 is provided with the smoke suction port 102, so that after the fan 21 of the range hood is started, a low pressure vortex region is generated on the front surface of the smoke inlet cavity 11 (i.e. the back surface of the panel of the smoke collecting hood 1) close to the air inlet 101, so that smoke is sucked into the smoke inlet cavity 11 to form a rotating airflow, the negative pressure region moves downwards outwards, smoke escape is prevented, and the smoke suction effect is improved; in addition, the smoke is sucked into the smoke inlet cavity 11 to form rotary airflow, and after the smoke is collided with the top surface of the smoke inlet cavity 11, the grease is condensed on the top surface of the smoke inlet cavity 11, so that the purpose of separating the oil and the smoke is achieved, meanwhile, an oil net at the air inlet 101 and/or the smoke suction port 102 can be omitted, the cost is reduced, the user is not required to clean the oil net, and the influence on the oil suction effect due to the arrangement of the oil net is avoided.

Optionally, the top surface of each smoke intake cavity 11 is higher than the upper edge of the corresponding air inlet 101. The left smoke suction port 102 is arranged on the left side of the top surface of the left smoke inlet cavity 11, so that the low-pressure vortex area generated on the left side is closer to the left side wall of the smoke collecting cover 1, and the high-efficiency smoke suction effect on the left side is ensured. The right smoke suction port 102 is arranged close to the right side of the top surface of the right smoke inlet cavity 11, so that a low-pressure vortex area generated on the right side is closer to the right side wall of the smoke collecting cover 1, and the high-efficiency smoke suction effect on the right side is ensured.

In the first modification, the smoke suction port 102 may be provided only on the right side of the top surface of the left smoke intake chamber 11, or the smoke suction ports 102 may be provided on both the left and right sides of the top surface of the left smoke intake chamber 11. Similarly, only the left side of the top surface of the right smoke inlet cavity 11 is provided with the smoke suction port 102, or the left side and the right side of the top surface of the right smoke inlet cavity 11 are provided with the smoke suction ports 102.

In the second modification, it is possible to change the left smoking inlet 102 to the left side upper end near the left smoke inlet 11 and the right smoking inlet 102 to the right side upper end near the right smoke inlet 11, and in this case, it is necessary to add a flow channel both in the left outer side near the left smoke inlet 11 and in the right outer side near the right smoke inlet 11, so that the left smoking inlet 102 can communicate with the smoke discharge chamber 12 through the left flow channel, and the right smoking inlet 102 can communicate with the smoke discharge chamber 12 through the right flow channel.

Referring to fig. 2, alternatively, the bottom surface of each smoke intake chamber 11 is arranged obliquely in the vertical direction, and/or the top surface of each smoke intake chamber 11 is arranged obliquely in the vertical direction. The bottom surface of the smoke inlet cavity 11 can be designed to be arranged from front to back and inclined upwards, and can also be arranged from back to front and inclined upwards, so that oil drops are favorably drained into an oil cup positioned at the bottom of the smoke collecting cover 1, and the oil drops are prevented from being deposited in the smoke inlet cavity 11. The top surface of the smoke inlet cavity 11 can be designed to be obliquely arranged from front to back and upwards so as to guide the oil stain deposited on the top surface of the smoke inlet cavity 11 to the front surface of the smoke inlet cavity 11 and then flow downwards to the bottom surface of the smoke inlet cavity 11 along the front surface of the smoke inlet cavity; the top surface of the smoke inlet cavity 11 can also be designed to be obliquely arranged from back to front and upwards so as to guide the oil stain deposited on the top surface of the smoke inlet cavity 11 to the back surface of the smoke inlet cavity 11 and then flow downwards to the bottom surface of the smoke inlet cavity 11 along the back surface thereof.

Referring to fig. 2-3 and fig. 5, further, the present invention further includes a condensation plate assembly 4, a smoke collecting chamber (not shown in the drawings) is formed inside the smoke collecting cover 1, the condensation plate assembly 4 is installed in the smoke collecting chamber and located above the air inlet 101, and the condensation plate assembly 4 divides the smoke collecting chamber into an upper chamber and a lower chamber, the upper chamber forms a smoke discharging chamber 12, and at least a portion of the lower chamber forms a smoke inlet chamber 11. The left side and the right side of the condensation plate component 4 are both provided with a smoke suction port 102, or a smoke suction port 102 is formed between the condensation plate component 4 and the left side wall and the right side wall of the smoke collection cavity, and the lower cavity is communicated with the upper cavity (namely the smoke discharge cavity 12) through the smoke suction port 102. Therefore, the condensation plate component 4 divides the smoke collecting cavity into the smoke exhaust cavity 12 and the smoke inlet cavity 11, so that the smoke inlet cavity 11 and the smoke suction port 102 are formed conveniently; in the smoking process, after the oil smoke enters the smoke inlet cavity 11, centrifugal force is generated through the Karman vortex street principle, and after the oil smoke touches the condensing plate component 4, grease is condensed on the condensing plate component 4, so that the purpose of oil smoke separation is achieved.

In the present embodiment, the condensation plate assembly 4 includes a condensation plate 41, the condensation plate 41 is obliquely disposed in the smoke collecting chamber and connected to the smoke collecting cover 1, a smoke suction port 102 is formed between the condensation plate 41 and the left side wall of the smoke collecting chamber, and a smoke suction port 102 is formed between the condensation plate 41 and the right side wall of the smoke collecting chamber.

Optionally, two flanges 411 extending upwards are respectively disposed at the front edge and the rear edge of the condensation plate 41, the flanges 411 are integrally formed with the condensation plate 41, and the front flange 411 and the rear flange 411 are respectively connected to the front surface and the rear surface of the smoke collecting hood 1, so as to cooperate with the front surface and the rear surface of the smoke collecting hood 1 through the two flanges 411, so that the condensation plate 41 is stably and reliably mounted inside the smoke collecting hood. Each flanging 411 and the smoke collecting hood 1 can be fixedly connected in a screw, bonding, welding, riveting or buckling mode.

In this embodiment, the condensation plate assembly 4 further includes two adjusting plates 42, the two adjusting plates 42 are respectively movably connected to the left and right sides of the condensation plate 41, and the ventilation area of the corresponding smoking opening 102 is adjusted by matching each adjusting plate 42 with the corresponding smoking opening 102. Therefore, the adjustment plate 42 is matched with the smoking port 102, so that the ventilation area of the smoking port 102 is changed, and the unit air intake of the smoking port 102 can be adjusted; secondly, through the relative position of adjustment regulating plate 42 and condensing plate 41, make condensing plate subassembly 4 can adapt to the collection petticoat pipe that the direction length is different about, improve condensing plate subassembly 4's adaptability and commonality.

Alternatively, one end of each adjusting plate 42 adjacent to the condensing plate 41 is rotatably connected to the condensing plate 41, i.e., the adjusting plate 42 is hinged to the condensing plate 41. Alternatively, each adjustment plate 42 is slidably coupled to the condensation plate 41.

Referring to fig. 5, in the present embodiment, the adjusting plate 42 is slidably connected to the condensing plate 41, the adjusting plate 42 is movably disposed on the top of the adjusting plate 42 and located between the front and rear flanges 411, and the adjusting plate 42 can slide left and right along the condensing plate 41. Optionally, a guide structure is provided between each adjusting plate 42 and the condensing plate 41 to make the movement of the adjusting plate 42 more smooth.

The guide structure includes a strip-shaped groove 412 and a sliding portion (not shown in the figure), two strip-shaped grooves 412 are provided on both left and right sides of the condensation plate 41 at intervals in the front-rear direction, and the length direction of each strip-shaped groove 412 is the same as the length direction of the condensation plate 41. The position of each adjusting plate 42 corresponding to the strip-shaped groove 412 is fixedly provided with a sliding part, and each sliding part is connected with the corresponding strip-shaped groove 412 in a sliding manner.

Referring to fig. 3 and fig. 5-6, further, a cavity partition 6 is further included, and the cavity partition 6 is disposed in the lower cavity and divides the lower cavity into two smoke inlet cavities 11 arranged in parallel at left and right intervals. In this embodiment, the smoke collecting cover 1 is further provided with a transverse plate 104 located below the air inlet 101, the transverse plate 104 is located on the back face of the panel of the smoke collecting cover 1, the left end and the right end of the transverse plate 104 are respectively and fixedly connected with the left side wall and the right side wall of the smoke collecting cover 1, and the lower end of the panel of the smoke collecting cover 1 is fixedly connected with the transverse plate 104. The lower end of the cavity divider 6 is provided with an inwardly mounted inner groove disposed in the outer surface of the upper end of the transverse plate 104 and connecting the transverse plate 104. The upper end of the cavity separator 6 is provided with a clamping groove 61 which is opened upwards, and the clamping groove 61 is matched and clamped with the front edge of the condensation plate 41.

Optionally, a notch 413 is provided at the middle of the rear side of the condensation plate 41, and the notch 413 is arranged corresponding to the rear side of the top of the cavity partition 6, so that the notch 413 can play a fool-proof role to prevent the condensation plate 41 from being assembled incorrectly.

Referring to fig. 1, 3 and 7-8, further, a smoke guide plate assembly 3 is further included, a movable smoke guide plate assembly 3 is disposed in each smoke inlet cavity 11, and the smoke guide plate assembly 3 is used for moving inwards to open the corresponding air inlet 101 and also used for moving forwards to close the corresponding air inlet 101. From this, add mobilizable smoke deflector subassembly 3 in every advances smoke chamber 11, realize switch air intake 101 to when opening air intake 101, effectively avoid smoke deflector subassembly 3 to shelter from some sight, prevent the oil drip problem, promote user's use and experience.

In the embodiment, the opening and closing movement of each smoke guide plate assembly 3 can be controlled by the driving assembly 5, so that the opening and closing of each air inlet 101 can be automatically controlled, and the cigarette can be gathered in different areas. The lower end of the smoke guide plate component 3 is rotatably connected with the smoke collecting cover 1. The driving assembly 5 is disposed in the smoke inlet chamber 11, and an output end of the driving assembly is connected to the smoke guide plate assembly 3, so as to drive the smoke guide plate assembly 3 to turn inwards to open the air inlet 101, or drive the smoke guide plate assembly 3 to turn outwards to close the air inlet 101.

Optionally, a mounting cavity 13 located below the smoke inlet cavity 11 and a guide groove 103 arranged in the front-back direction are further provided inside the smoke collecting cover 1, the guide groove 103 is provided between the mounting cavity 13 and the smoke inlet cavity 11, and the mounting cavity 13 is communicated with the smoke inlet cavity 11 through the guide groove 103. A positioning portion 131 is provided in the mounting chamber 13.

The smoke guide plate assembly 3 comprises a smoke guide plate 31 and a swing arm 32, the smoke guide plate 31 is rotatably arranged in the smoke inlet cavity 11, the swing arm 32 movably penetrates through the guide groove 103, one end of the swing arm is connected with the smoke guide plate 31, and the other end of the swing arm is rotatably connected with the positioning portion 131. The driving assembly 5 is installed in the installation cavity 13, and the output end of the driving assembly 5 is connected with the swing arm 32, so that the driving assembly 5 is prevented from being polluted in the oil absorption process, and the service life of the driving assembly 5 is prolonged.

The working principle of the smoke guide plate assembly 3 of the present embodiment is described below with reference to fig. 7 to 10:

when smoking is needed, the fan 21 and the driving component 5 on the side where smoking is needed are started, and the driving component 5 rotates towards the direction of opening the air inlet 101 to drive the smoke guide plate component 3 to turn inwards. The opening angle of the smoke guide plate component 3 is controlled according to the working gear of the cigarette machine. If the cigarette machine works at the maximum gear, the cigarette guide plate assembly 3 is controlled to turn inwards to the maximum position, and at the moment, the upper end part of the cigarette guide plate assembly 3 is abutted or in clearance fit with the back surface of the cigarette inlet cavity 11, referring to figures 7-8; if the cigarette machine is operated in the middle gear, the cigarette guide plate assembly 3 is controlled to turn inwards to the middle position, and at the moment, the cigarette guide plate assembly 3 is substantially vertical to the horizontal plane, and refer to fig. 9.

When the cigarette machine is turned off, the fan 21 is turned off, and the driving assembly 5 is controlled to rotate towards the direction of closing the air inlet 101, and the driving assembly 5 drives the cigarette guide plate assembly 3 to turn outwards until the cigarette guide plate assembly 3 closes the corresponding air inlet 101, referring to fig. 10.

In other embodiments, the switch of the smoke guide plate assembly 3 may be manually controlled. For example, the smoke guide plate assembly 3 is installed in the smoke inlet cavity 11 in a manner of being capable of moving back and forth in a translational motion, and two opposite side surfaces of the smoke guide plate assembly 3 and the smoke inlet cavity 11 are movably connected through a guide rail structure.

Or the smoke guide plate component 3 is designed to be installed in the smoke inlet cavity 11 in a turnover mode, and the two opposite side faces of the smoke guide plate component 3 and the smoke inlet cavity 11 are movably connected through the positioning components. Optionally, the positioning assembly includes a plurality of detents and a positioning element, and a plurality of detents are disposed on two opposite sides of the smoke inlet cavity 11 at intervals along the front-back direction. The lower extreme rotatable coupling of smoke deflector subassembly 3 advances the bottom surface of cigarette chamber 11 to smoke deflector subassembly 3's relative both sides are connected with the setting element respectively, and this setting element can remove between the screens, and like this, through the cooperation relation of manual regulation setting element and different screens, can realize adjusting smoke deflector subassembly 3's difference and open the angle.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model.

Claims (10)

1. A range hood, comprising:

the smoke collecting cover comprises a smoke collecting cover (1), wherein a smoke inlet cavity (11) and a smoke exhaust cavity (12) are arranged in the smoke collecting cover (1), the smoke inlet cavity (11) is positioned below or in front of the smoke exhaust cavity (12), an air inlet (101) communicated with the smoke inlet cavity (11) is formed in the front of the smoke collecting cover (1), a smoke suction port (102) is formed in the left side and/or the right side of the smoke inlet cavity (11), and the smoke exhaust cavity (12) is communicated with the smoke inlet cavity (11) through the smoke suction port (102);

air cabinet (2), air cabinet (2) including bellows with install in fan (21) in the bellows, bellows set up in the top and the intercommunication of collection petticoat pipe (1) smoke discharge chamber (12), start-up fan (21) back, can advance smoke chamber (11) and be close to the left side or the right side of smoking mouth (102) produce the low pressure vortex district, thereby make the flue gas inhale it forms rotatory air current to advance behind the smoke chamber (11).

2. A range hood as claimed in claim 1, wherein the smoke suction port (102) is provided on the left side and/or the right side of the top surface of the smoke inlet chamber (11).

3. A range hood according to claim 2, characterized in that the bottom surface of the smoke inlet chamber (11) is arranged obliquely in the vertical direction and/or the top surface of the smoke inlet chamber (11) is arranged obliquely in the vertical direction.

4. A range hood according to any one of claims 1-3, further comprising a condensation plate assembly (4), wherein a smoke collection chamber is formed inside the smoke collection cover (1), the condensation plate assembly (4) is installed inside the smoke collection chamber and divides the smoke collection chamber into an upper chamber and a lower chamber, the upper chamber forms the smoke discharge chamber (12), and at least a part of the lower chamber forms the smoke inlet chamber (11);

the left side and/or the right side of the condensation plate component (4) are/is provided with the smoking openings (102), or the smoking openings (102) are formed between the condensation plate component (4) and the side wall of the smoke collection cavity.

5. A range hood according to claim 4, wherein the condensation plate assembly (4) comprises a condensation plate (41), the condensation plate (41) is disposed in the smoke collection chamber and connected to the smoke collection chamber (1), the smoke suction port (102) is formed between the condensation plate (41) and the left side wall of the smoke collection chamber, and/or the smoke suction port (102) is formed between the condensation plate (41) and the right side wall of the smoke collection chamber.

6. The range hood according to claim 5, wherein the condensation plate assembly (4) further comprises an adjusting plate (42), the adjusting plate (42) is movably connected to one side of the condensation plate (41) close to the smoke suction port (102), and the ventilation area of the smoke suction port (102) is adjusted by the adjusting plate (42) matching with the smoke suction port (102).

7. A range hood as claimed in claim 6, wherein one end of the adjusting plate (42) close to the condensing plate (41) is rotatably connected with the condensing plate (41);

or the adjusting plate (42) is in sliding connection with the condensing plate (41), and a guide structure is arranged between the adjusting plate (42) and the condensing plate (41).

8. The range hood according to claim 1, further comprising a smoke guide plate assembly (3), wherein the smoke guide plate assembly (3) is movably disposed in the smoke inlet chamber (11) and is configured to move inward to open the air inlet (101) and move outward to close the air inlet (101).

9. A range hood according to claim 8, further comprising a driving assembly (5), wherein the lower end of the smoke guide plate assembly (3) is rotatably connected to the smoke collecting hood (1), the driving assembly (5) is disposed in the smoke inlet chamber (11) and the output end of the driving assembly is connected to the smoke guide plate assembly (3) for driving the smoke guide plate assembly (3) to turn inwards to open the air inlet (101), or driving the smoke guide plate assembly (3) to turn outwards to close the air inlet (101).

10. A range hood according to claim 9, wherein a mounting cavity (13) located below the smoke inlet cavity (11) and a guide groove (103) arranged along a front-back direction are further provided inside the smoke collecting hood (1), the mounting cavity (13) is communicated with the smoke inlet cavity (11) through the guide groove (103), and a positioning portion (131) is provided in the mounting cavity (13);

the driving assembly (5) is arranged in the mounting cavity (13);

lead cigarette board subassembly (3) including leading cigarette board (31) and swing arm (32), lead cigarette board (31) rotationally set up in advance in cigarette chamber (11), swing arm (32) movably wears to locate guide way (103) and its one end are connected lead cigarette board (31), the other end is connected respectively location portion (131) with the output of drive assembly (5).

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