CN217653929U - Cooking fume exhauster - Google Patents

Abstract

The utility model discloses a range hood. The range hood comprises a fume collecting hood, a first main air inlet and a second main air inlet are formed in the fume collecting hood, and a first position is formed between the first main air inlet and the second main air inlet; the filter screen assembly comprises a first filter screen and a second filter screen, the first filter screen is arranged at the first main air inlet, and the second filter screen is arranged at the second main air inlet; the movable filter screen structure is arranged on the smoke collection cover and positioned on the upper sides of the first filter screen and the second filter screen, the movable filter screen structure comprises a mesh structure, the movable filter screen structure can move among a first position, a second position and a third position relative to the smoke collection cover, and when the movable filter screen structure is positioned at the first position, the mesh structure is positioned above the first filter screen; when the movable filter screen structure is located at the second position, the mesh structure is located above the second filter screen; when the moving screen structure is in the third position, the mesh structure is above the first position.

Description

Cooking fume exhauster

Technical Field

The utility model relates to a kitchen electricity technical field especially relates to a range hood.

Background

The existing double-cavity range hood generally takes the middle part of a fume collecting hood as a boundary point, and two air inlets for absorbing fume extend outwards. Because the two side edges of the air inlet close to the fume collecting hood are far away from the air duct of the range hood, the air pressure is low, when a large amount of oil fume is generated, part of the oil fume often escapes from the two side edges of the fume collecting hood, so that the air in a kitchen is poor, and the human health is influenced.

Therefore, a range hood is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the problems that exist among the prior art to a certain extent at least, for this reason, the utility model provides a range hood can enlarge the negative pressure zone that range hood absorbs the oil smoke for the oil smoke gets into range hood's area and enlarges, thereby has reduced the oil smoke and has escaped, has carried out double filtration to the oil smoke simultaneously, thereby has improved oil smoke filter effect.

The above purpose is realized by the following technical scheme:

a range hood, comprising:

the exhaust fume collecting hood is provided with a first main air inlet and a second main air inlet, and a first part is formed between the first main air inlet and the second main air inlet;

the filter screen assembly comprises a first filter screen and a second filter screen, the first filter screen is installed at the first main air inlet, and the second filter screen is installed at the second main air inlet;

a moving screen structure mounted on the hood and located above the first and second screens, the moving screen structure including a mesh structure, the moving screen structure being movable relative to the hood between a first position, a second position, and a third position, the mesh structure being located above the first screen when the moving screen structure is in the first position; when the moving screen structure is in the second position, the mesh structure is above the second screen; when the moving screen structure is in the third position, the mesh structure is above the first location.

Optionally, remove screen structure including install drive structure on the collection petticoat pipe and with the removal otter board that drive structure transmission is connected, drive structure can drive it is relative to remove the otter board the collection petticoat pipe is in the first position the second position and move between the third position, mesh structure sets up remove on the otter board.

Optionally, the driving structure comprises a motor and a rack and pinion assembly, the motor is mounted on the fume collecting hood, and the motor drives the moving mesh plate to move between the first position, the second position and the third position relative to the fume collecting hood through the rack and pinion assembly.

Optionally, the rack-and-pinion assembly includes a gear mounted at an output end of the motor and a rack in meshed driving connection with the gear, the rack being mounted on one of a front side and a rear side of the moving mesh plate.

Optionally, remove the filter screen structure and still include the guide, the guide is installed on the collection cigarette cover, another one in the front side of removal otter board and the rear side passes through rack and pinion drive assembly with motor drive is connected, the opposite side with guide sliding connection.

Optionally, the oil cup is arranged at the lower side of the rear part of the smoke collecting hood, and the moving screen plate is arranged in a downward inclined mode from the front side to the rear side.

Optionally, the smoke collecting cover is further provided with an auxiliary air inlet, the auxiliary air inlet is located at the first position, a second portion is formed between the first main air inlet and the auxiliary air inlet, and a third portion is formed between the second main air inlet and the auxiliary air inlet.

Optionally, the screen assembly further comprises a third screen, the third screen being mounted at the auxiliary air intake.

Optionally, the mesh structure comprises a first set of mesh holes and a second set of mesh holes, the first set of mesh holes and the second set of mesh holes forming a first plate therebetween, the second set of mesh holes being located above the first screen and the first set of mesh holes being located above the third screen when the moving screen is in the first position; when the moving screen is in the second position, the second set of apertures is above the third screen and the first set of apertures is above the second screen; when the movable screen plate is located at the third position, the first plate is located above the third filter screen, the first mesh group is located above the third position, and the second mesh group is located above the second position.

Optionally, a second plate is arranged on one side of the first mesh group, which is far away from the first plate, a third plate is arranged on one side of the second mesh group, which is far away from the first plate, when the movable mesh plate is located at the third position, the second plate is located above the second filter screen, and the third plate is located above the first filter screen.

Optionally, the part that is close to of first filter screen the third filter screen is first filter house, first filter house is from keeping away from one side of third filter screen is to being close to one side of third filter screen slope down sets up, being close to of second filter screen the part of third filter screen is the second filter house, the second filter house is from keeping away from one side of third filter screen is to being close to one side slope down sets up of third filter screen, the shape that removes the otter board is the arc surface, works as it is located when the third position, it is crooked down from both ends to the middle part to remove the otter board, and, the third plate is located the top of first filter house, the second plate is located the top of second filter house.

Optionally, the smoke collecting hood further comprises a machine case and a turbine structure arranged in the machine case, the machine case is mounted on the smoke collecting hood, and the movable filter screen structure is arranged between the turbine structure and the smoke collecting hood.

Compared with the prior art, the utility model discloses at least, including following beneficial effect:

the range hood that this embodiment provided can be when the left side cooking utensils of range hood below are opened alone, and the relative collection petticoat pipe of removal filter screen structure moves to first position department to make the mesh structure of removing the filter screen structure be located the top of first filter screen, thereby enlarge the negative pressure zone that range hood absorbs the oil smoke, make the area that the oil smoke got into range hood enlarge, thereby reduced the oil smoke and escaped, carried out double filtration to the oil smoke simultaneously, thereby improved the oil smoke filter effect. Similarly, when the right cooker below the range hood is independently opened, the movable filter screen structure moves to the second position relative to the fume collecting hood, so that the mesh structure of the movable filter screen structure is located above the second filter screen, the negative pressure area of the range hood for absorbing the fume is enlarged, the area of the fume entering the range hood is enlarged, the fume escape is reduced, the fume is doubly filtered, and the fume filtering effect is improved. When the left side cooking utensils and the right side cooking utensils below the range hood are opened simultaneously, the movable filter screen structure moves to the third position relative to the fume collecting cover, and the mesh structure is located above the first position, so that the negative pressure of the first main air inlet and the second main air inlet of the range hood is the same, the fume suction effect of the left side cooking utensils and the right side cooking utensils is guaranteed to be balanced, and meanwhile, the movable filter screen structure plays a role of a condensing plate to accelerate the condensation of the fume.

Drawings

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

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic structural diagram of the range hood according to the embodiment of the present invention after the case and the turbine are removed (the movable screen is located at the third position);

fig. 4 is a schematic structural diagram of the range hood according to the embodiment of the present invention after the case and the turbine are removed (the movable screen is located at the first position).

In the figure:

1. a smoke collecting hood; 11. a first main air inlet; 12. a second main air inlet; 13. an auxiliary air inlet;

2. a screen assembly; 21. a first filter screen; 22. a second filter screen; 23. a third filter screen;

3. moving the screen structure; 31. moving the screen plate; 311. a first group of mesh openings; 312. a second group of mesh openings; 313. a first plate; 314. a second plate; 315. a third plate; 316. a rack; 32. a motor; 33. a guide member;

4. a chassis;

5. a turbine structure;

6. an oil cup.

Detailed Description

The present invention is illustrated by the following examples, but the present invention is not limited to these examples. To the embodiment of the present invention, modify or replace some technical features, without departing from the spirit of the present invention, it should be covered in the technical solution scope of the present invention.

Referring to fig. 1-4, the present invention provides a range hood, which includes a smoke collecting hood 1, a filter screen assembly 2 and a movable filter screen structure 3. The fume collecting hood 1 is provided with a first main air inlet 11 and a second main air inlet 12, and a first part is formed between the first main air inlet 11 and the second main air inlet 12. The strainer assembly 2 includes a first strainer 21 and a second strainer 22, the first strainer 21 is installed at the first main air inlet 11, and the second strainer 22 is installed at the second main air inlet 12. The movable filter screen structure 3 is installed on the smoke collecting hood 1 and is positioned on the upper sides of the first filter screen 21 and the second filter screen 22, the movable filter screen structure 3 comprises a mesh structure, the movable filter screen structure 3 can move among a first position, a second position and a third position relative to the smoke collecting hood 1, and when the movable filter screen structure 3 is positioned at the first position, the mesh structure is positioned above the first filter screen 21; when the moving screen structure 3 is in the second position, the mesh structure is above the second screen 22; when the moving screen structure 3 is in the third position, the mesh structure is above the first location.

The range hood that this embodiment provided can be when the left side cooking utensils of range hood below are opened alone, and the relative collection petticoat pipe 1 of removal filter screen structure 3 moves to first position department to make the mesh structure of removal filter screen structure 3 be located the top of first filter screen 21, thereby enlarge the negative pressure zone that range hood absorbs the oil smoke, make the area that the oil smoke got into range hood enlarge, thereby reduced the oil smoke and escaped, carried out double filtration to the oil smoke simultaneously, thereby improved oil smoke filter effect. Similarly, when the right side cooking utensils below range hood were opened alone, remove filter structure 3 and remove to second position department relative collection petticoat pipe 1 to make the mesh structure of removing filter structure 3 be located the top of second filter screen 22, thereby enlarge range hood and absorb the negative pressure zone of oil smoke, make the area that the oil smoke got into range hood enlarge, thereby reduced the oil smoke escape, carried out double filtration to the oil smoke simultaneously, thereby improved the oil smoke filter effect. And when the left side cooking utensils and the right side cooking utensils of range hood below were opened simultaneously, remove filter screen structure 3 and remove to the third position relative collection petticoat pipe 1, the mesh structure is located the top of first position to make the first main air intake 11 of range hood and the negative pressure size of second main air intake 12 the same, guaranteed that the oil absorption cigarette effect to left side cooking utensils and right side cooking utensils is comparatively balanced, make simultaneously to remove filter screen structure 3 and play the effect of condensing plate, the condensation of acceleration oil smoke.

Optionally, the moving screen structure 3 includes a driving structure installed on the smoke collecting hood 1 and a moving screen 31 in transmission connection with the driving structure, the driving structure can drive the moving screen 31 to move between a first position, a second position and a third position relative to the smoke collecting hood 1, and the mesh structure is opened on the moving screen 31. The movable filter screen structure 3 has simple structure and is easy to be installed on the range hood.

Alternatively, the driving structure includes a motor 32 and a rack and pinion assembly, the motor 32 is mounted on the fume collecting hood 1, and the motor 32 drives the moving mesh plate 31 to move between the first position, the second position and the third position relative to the fume collecting hood 1 through the rack and pinion assembly. The motor 32 and the gear rack transmission assembly are arranged to drive the moving screen plate 31 to move, so that the moving precision of the moving screen plate 31 is guaranteed.

Alternatively, the rack-and-pinion assembly includes a gear installed at an output end of the motor 32 and a rack 316 in meshed driving connection with the gear, and the rack 316 is installed on one of a front side and a rear side of the moving screen 31, so that the motor 32 can drive the moving screen 31 to move in the left and right directions through the rack-and-pinion assembly.

Optionally, the moving screen structure 3 further comprises a guide 33, the guide 33 is mounted on the smoke collecting hood 1, the other of the front side and the rear side of the moving screen 31 is in transmission connection with the motor 32 through a rack-and-pinion transmission assembly, and the other side is in sliding connection with the guide 33. Through setting up guide 33 to guarantee to remove otter board 31 and can move along guide 33 all the time, and then guaranteed to remove the motion stability of otter board 31, and then guaranteed to remove the motion accuracy of filter screen structure 3.

Optionally, an oil cup 6 is further included, the oil cup 6 is disposed at the lower side of the rear portion of the smoke collecting hood 1, and the moving mesh plate 31 is disposed to be inclined downward from the front side to the rear side, so that the condensed oil smoke can smoothly flow into the oil cup 6.

Optionally, the smoke collecting cover 1 is further provided with an auxiliary air inlet 13, the auxiliary air inlet 13 is located at the first position, a second portion is formed between the first main air inlet 11 and the auxiliary air inlet 13, and a third portion is formed between the second main air inlet 12 and the auxiliary air inlet 13.

Optionally, the screen assembly 2 further includes a third screen 23, and the third screen 23 is installed at the auxiliary air inlet 13.

Optionally, the mesh structure comprises a first set of holes 311 and a second set of holes 312, the first set of holes 311 and the second set of holes 312 forming a first plate 313, the second set of holes 312 being located above the first screen 21 and the first set of holes 311 being located above the third screen 23 when the moving screen 31 is in the first position; when the moving screen 31 is in the second position, the second set of holes 312 is above the third screen 23 and the first set of holes 311 is above the second screen 22; when the moving screen 31 is at the third position, the first plate 313 is above the third screen 23, the first mesh group 311 is above the third portion, and the second mesh group 312 is above the second portion. Through setting up supplementary air intake 13 and setting up the mesh structure into first mesh group 311 and second mesh group 312, do benefit to when unilateral cooking utensils are opened, further enlarge the negative pressure zone that the range hood absorbs the oil smoke for the area that the oil smoke got into range hood is bigger, thereby has further reduced the oil smoke and has escaped.

Optionally, a side of the first mesh group 311 away from the first plate 313 has a second plate 314, a side of the second mesh group 312 away from the first plate 313 has a third plate 315, when the moving mesh plate 31 is located at the third position, the second plate 314 is located above the second screen 22, and the third plate 315 is located above the first screen 21, so that the moving mesh plate 31 can be better used as a condensation plate.

Optionally, a portion of the first filter screen 21 close to the third filter screen 23 is a first filter portion, the first filter portion is disposed to be inclined downward from a side far away from the third filter screen 23 to a side close to the third filter screen 23, a portion of the second filter screen 22 close to the third filter screen 23 is a second filter portion, the second filter portion is disposed to be inclined downward from a side far away from the third filter screen 23 to a side close to the third filter screen 23, the shape of the moving mesh plate 31 is an arc surface, and when the moving mesh plate 31 is located at the third position, the moving mesh plate 31 is bent downward from two ends to a middle portion. The arc surface shape of the moving screen plate 31 is beneficial to avoiding the first filter screen 21 and the second filter screen 22 during movement, so that the moving screen plate 31 is prevented from colliding with the first filter screen 21 and the second filter screen 22 during movement, and the miniaturization of the range hood is facilitated.

Optionally, when the moving mesh plate 31 is located at the third position, the third plate 315 is located above the first filtering portion, and the second plate 314 is located above the second filtering portion, so as to facilitate the oil smoke to enter the range hood through the first filter screen 21 and the second filter screen 22; on the other hand, the oil smoke is favorably adhered to the movable screen plate 31 to filter and condense the oil smoke.

Optionally, the device further comprises a machine case 4 and a turbine structure 5 arranged in the machine case 4, wherein the machine case 4 is installed on the fume collecting hood 1, and the movable filter screen structure 3 is arranged between the turbine structure 5 and the fume collecting hood 1. Because the turbine is also arc-shaped, the moving screen plate 31 arranged on the arc surface can also avoid the turbine, and the miniaturization of the range hood is further facilitated.

Specifically, when the moving screen 31 is located at the third position, the turbine structure 5 is located directly above the moving screen 31.

What has been described above is merely some embodiments of the present invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims (12)

1. A range hood, characterized by comprising:

the exhaust fume collecting hood comprises a fume collecting hood (1), a first main air inlet (11) and a second main air inlet (12) are formed in the fume collecting hood, and a first part is formed between the first main air inlet (11) and the second main air inlet (12);

a screen assembly (2) comprising a first screen (21) and a second screen (22), the first screen (21) being mounted at the first primary air inlet (11), the second screen (22) being mounted at the second primary air inlet (12);

a mobile screen structure (3) mounted on the hood (1) and located on an upper side of the first and second screens (21, 22), the mobile screen structure (3) comprising a mesh structure, the mobile screen structure (3) being movable relative to the hood (1) between a first position, a second position and a third position, the mesh structure being located above the first screen (21) when the mobile screen structure (3) is located in the first position; when the moving sieve structure (3) is in the second position, the mesh structure is above the second sieve (22); when the moving sieve structure (3) is in the third position, the mesh structure is above the first location.

2. A range hood according to claim 1, wherein the moving screen structure (3) comprises a driving structure installed on the fume collecting hood (1) and a moving screen (31) in transmission connection with the driving structure, the driving structure can drive the moving screen (31) to move between the first position, the second position and the third position relative to the fume collecting hood (1), and the mesh structure is opened on the moving screen (31).

3. A range hood according to claim 2, wherein the driving structure comprises a motor (32) and a rack and pinion assembly, the motor (32) is mounted on the fume collecting hood (1), and the motor (32) drives the moving mesh plate (31) to move between the first position, the second position and the third position relative to the fume collecting hood (1) through the rack and pinion assembly.

4. The range hood according to claim 3, wherein the rack-and-pinion assembly comprises a gear and a rack (316) in meshed transmission connection with the gear, the gear is installed at the output end of the motor (32), and the rack (316) is installed on one of the front side and the rear side of the moving screen (31).

5. The extractor hood according to claim 4, characterized in that the moving screen structure (3) further comprises a guide (33), the guide (33) is mounted on the fume collecting hood (1), the other of the front side and the rear side of the moving screen plate (31) is in transmission connection with the motor (32) through the rack-and-pinion transmission assembly, and the other side is in sliding connection with the guide (33).

6. The range hood according to claim 2, further comprising an oil cup (6), wherein the oil cup (6) is disposed at a lower side of a rear portion of the fume collecting hood (1), and the moving mesh plate (31) is disposed to be inclined downward from a front side to a rear side.

7. The range hood according to any one of claims 2 to 6, wherein an auxiliary air inlet (13) is further formed in the smoke collecting hood (1), the auxiliary air inlet (13) is located at the first position, a second portion is formed between the first main air inlet (11) and the auxiliary air inlet (13), and a third portion is formed between the second main air inlet (12) and the auxiliary air inlet (13).

8. The extractor hood according to claim 7, wherein the screen assembly (2) further comprises a third screen (23), the third screen (23) being installed at the auxiliary air intake (13).

9. The range hood according to claim 8, wherein the mesh structure comprises a first mesh group (311) and a second mesh group (312), the first mesh group (311) and the second mesh group (312) forming a first plate (313), the second mesh group (312) being located above the first screen (21) when the moving screen (31) is in the first position, the first mesh group (311) being located above the third screen (23); when the moving screen (31) is in the second position, the second set of orifices (312) is above the third screen (23) and the first set of orifices (311) is above the second screen (22); when the movable screen plate (31) is located at the third position, the first plate (313) is located above the third filter screen (23), the first mesh group (311) is located above the third position, and the second mesh group (312) is located above the second position.

10. The range hood of claim 9, wherein a side of the first mesh group (311) remote from the first plate (313) has a second plate (314), a side of the second mesh group (312) remote from the first plate (313) has a third plate (315), the second plate (314) is located above the second screen (22) and the third plate (315) is located above the first screen (21) when the moving mesh plate (31) is in the third position.

11. The range hood according to claim 10, wherein the portion of the first filter screen (21) close to the third filter screen (23) is a first filter portion, the first filter portion is disposed to be inclined downward from a side far from the third filter screen (23) to a side close to the third filter screen (23), the portion of the second filter screen (22) close to the third filter screen (23) is a second filter portion, the second filter portion is disposed to be inclined downward from a side far from the third filter screen (23) to a side close to the third filter screen (23), the movable mesh plate (31) is shaped as an arc surface, when the movable mesh plate (31) is located at the third position, the movable mesh plate (31) is bent downward from two ends to a middle part, the third plate block (315) is located above the first filter portion, and the second plate block (314) is located above the second filter portion.

12. A range hood according to any one of claims 1 to 6, further comprising a cabinet (4) and a turbine structure (5) arranged inside the cabinet (4), wherein the cabinet (4) is mounted on the fume collecting hood (1), and the movable filter screen structure (3) is arranged between the turbine structure (5) and the fume collecting hood (1).

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