CN116951490A

CN116951490A - Tobacco gathering mechanism and range hood

Info

Publication number: CN116951490A
Application number: CN202310675194.4A
Authority: CN
Inventors: 任富佳; 吕立丰; 罗明桥; 胡娇; 吕春明; 郁明跃; 夏世敏; 余国成
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2023-10-27

Abstract

The invention belongs to the technical field of electric appliances, and particularly discloses a smoke gathering mechanism and a range hood. The cigarette gathering mechanism comprises: the smoke collecting hood is provided with a smoke collecting cavity and a smoke inlet plate forming the lower bottom of the smoke collecting cavity, the smoke inlet plate is provided with a smoke collecting cavity concavely arranged upwards, and the cavity wall of the smoke collecting cavity is provided with an inner air inlet communicated with the smoke collecting cavity; the lower wind shield is arranged at the front side of the lower part of the fume collecting hood and is positioned below the fume inlet plate, the front end and the rear end of the fume collecting cavity are respectively positioned at the front side and the rear side of the lower wind shield, and an outer air inlet is formed between the upper end of the lower wind shield and the front end of the fume collecting cavity; the front smoke baffle is rotatably connected to the front end of the smoke collecting hood and can selectively open or close the outer air inlet, and when the front smoke baffle closes the outer air inlet, the front smoke baffle and the lower wind baffle are arranged at a preset obtuse angle. The range hood comprises the smoke collecting mechanism. The smoke collecting mechanism and the range hood provided by the invention can improve the smoke sucking effect and reduce the occupied space of the range hood.

Description

Tobacco gathering mechanism and range hood

Technical Field

The invention relates to the technical field of electric appliances, in particular to a smoke gathering mechanism and a range hood.

Background

With the improvement of life quality of people, the range hood becomes an indispensable electrical appliance in a kitchen, is usually arranged above a kitchen range, and can rapidly pump and exhaust waste gas generated by combustion of the gas range and oil smoke generated in a cooking process, so that the environment of the kitchen is purified, and the cooking comfort of people is improved.

The existing range hoods are generally divided into a top-suction type range hood and a side-suction type range hood according to the arrangement mode of a smoke inlet. The whole floor space of the top-draft type range hood is relatively small, the smoke inlet is formed in the bottom of the smoke collecting hood, and oil smoke is cleaned by exhausting the oil smoke upwards during operation; the side-draught type range hood integrally extends downwards from front to back in an inclined manner, and the smoke inlet is formed in the front side surface of the smoke collecting hood in an inclined manner. The whole floor space of the top-draft range hood is smaller, but the area of the smoke collecting cavity is smaller due to the limitation of a processing technology and the limitation of the height, so that the air inlet area is difficult to increase, the suction effect is influenced, and the problem that the oil smoke is easy to escape from four sides exists; although the air inlet of the side-draft range hood is closer to the cooking bench, the suction effect is relatively good, but the space is limited due to the large occupied space, and the side-draft range hood is easy to collide by a user.

Therefore, a smoke collecting mechanism and a range hood are needed to solve the above technical problems.

Disclosure of Invention

The invention aims to provide a smoke gathering mechanism, which is used for increasing the air inlet area, improving the oil smoke sucking effect, reducing the occupied space of the smoke gathering mechanism and reducing the collision probability of the smoke gathering mechanism and a user.

Another object of the present invention is to provide a range hood, so as to improve the oil smoke exhausting capability of the range hood, reduce the occupied space of the range hood, and improve the use experience of the range hood.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

a smoke gathering mechanism comprising:

the smoke collecting hood is provided with a smoke collecting cavity and a smoke inlet plate forming the lower bottom of the smoke collecting cavity, the smoke inlet plate is provided with a smoke collecting cavity concavely arranged upwards, the cavity wall of the smoke collecting cavity is provided with an inner air inlet communicated with the smoke collecting cavity, and the inner air inlet is communicated with the smoke collecting cavity;

the lower wind shield is arranged at the front side of the lower part of the smoke collecting cover, the front end and the rear end of the smoke collecting cavity are respectively positioned at the front side and the rear side of the lower wind shield, and an outer air inlet is formed between the upper end of the lower wind shield and the front end of the smoke collecting cavity;

the front smoke baffle plate is rotationally connected to the front end of the smoke collecting hood and can selectively open or close the outer air inlet, and when the front smoke baffle plate closes the outer air inlet, the front smoke baffle plate and the lower wind baffle plate are arranged at a preset obtuse angle.

As an optional technical scheme of a smoke gathering mechanism, the smoke collecting cover comprises an upper shell and a lower shell, the smoke inlet plate forms the bottom of the upper shell, the lower shell is connected to the rear side of the bottom of the upper shell, and the lower wind shield is mounted on the front side of the lower shell.

As an alternative technical scheme of the smoke gathering mechanism, the upper shell and the lower shell are welded or detachably connected.

As an alternative technical scheme of the cigarette gathering mechanism, the left side and the right side of the upper shell are respectively provided with a side baffle, and the side baffles cover the corresponding side surfaces of the upper shell and the lower shell.

As an alternative technical scheme of the smoke gathering mechanism, when the front smoke baffle closes the outer air inlet, orthographic projections of the upper shell, the lower shell and the lower wind baffle on the side baffle are positioned on the inner side of the side baffle;

and/or, the lower wind shield has a first included angle relative to the vertical plane, the front side edge of the side baffle has a second included angle relative to the vertical plane, and the first included angle is smaller than the second included angle.

As an optional technical scheme of a smoke gathering mechanism, the smoke collecting hood comprises an oil collecting cavity positioned at the lower side of the smoke gathering plate, the lower wind shield forms a front side cavity wall of the oil collecting cavity, the rear end of the smoke gathering cavity is communicated with the oil collecting cavity, the smoke gathering plate is provided with a rear communication port, and the rear communication port is positioned at the rear side of the smoke gathering cavity and is communicated with the oil collecting cavity and the smoke gathering cavity;

And the rear side cavity wall of the smoke gathering cavity is provided with an oil leakage port.

As an alternative technical scheme of the cigarette gathering mechanism, two cigarette gathering cavities are arranged at intervals along the left-right direction, and the outer air inlets are arranged in one-to-one correspondence with the cigarette gathering cavities;

and/or the ventilation area of the outer air inlet is smaller than that of the inner air inlet.

As an optional technical scheme of the smoke gathering mechanism, the smoke collecting hood is provided with an oil collecting cavity positioned at the lower side of the smoke inlet plate, the lower wind shield forms a front side cavity wall of the oil collecting cavity, and the oil collecting cavity is communicated with the smoke collecting cavity;

the upper end of the lower wind shield is rotationally connected with the fume collecting hood, so that a side air inlet which can be selectively opened or closed is formed between the fume inlet plate and the upper end of the lower wind shield; or, the lower end of the lower wind shield is rotatably connected with the fume collecting hood, so that a side air inlet which can be selectively opened or closed is formed between the lower end of the lower wind shield and the lower end of the fume collecting hood.

As an alternative technical scheme of a smoke gathering mechanism, the lower wind shield comprises a fixed baffle plate and a movable baffle plate, a side air inlet is formed in the fixed baffle plate, and the movable baffle plate is movably connected with the fixed baffle plate so as to selectively open or close the side air inlet.

As an optional technical scheme of the cigarette gathering mechanism, the cigarette gathering mechanism further comprises a lower plate driving piece, and the lower plate driving piece drives the movable baffle to move along a direction approaching to or separating from the fixed baffle so as to open or close the side air inlet.

As an alternative technical scheme of the fume collecting mechanism, the lower end of the fume collecting hood is internally provided with a mounting space for mounting an oil cup, the mounting space is provided with a front side opening for the oil cup to enter and exit, and the lower wind shield can selectively open or close the front side opening.

As an alternative technical scheme of the smoke gathering mechanism, the upper end of the lower wind shield is rotationally connected with the smoke collecting cover, so that the lower end of the lower wind shield can be turned forwards to open the front side opening;

or, the lower wind shield comprises an upper plate part and a lower plate part, the upper end of the upper plate part is in butt joint with the smoke inlet plate, the front side opening is formed between the lower end of the upper plate part and the lower end of the smoke collecting cover, and the lower plate part is in sliding connection with the upper plate part so as to open or close the front side opening.

As an optional technical scheme of a cigarette gathering mechanism, the inner air inlet comprises a front air inlet and a rear air inlet, the rear air inlet is positioned at the rear side of the front air inlet, the front air inlet is opposite to the outer air inlet, and the rear air inlet is opposite to the lower wind deflector and is arranged at intervals.

As an optional technical scheme of the smoke gathering mechanism, a filter screen is detachably arranged at the front air inlet, and the filter screen can be detached and assembled through the outer air inlet;

and/or the rear air inlets are arranged at intervals along the left-right direction.

As an optional technical scheme of a tobacco gathering mechanism, the top cavity wall of the tobacco gathering cavity is provided with an inner air inlet, a filter screen and oil blocking parts are arranged at the inner air inlet, two oil blocking parts are arranged at intervals along the left-right direction, and the two oil blocking parts are respectively used for receiving oil drops dripping from the left side wall and the right side wall of the bellows.

As an optional technical scheme of a smoke gathering mechanism, the oil blocking component comprises an oil blocking bottom plate and a silencing piece, the oil blocking bottom plate is connected with the filter screen or the smoke collecting hood, a plurality of noise reduction holes are formed in the oil blocking bottom plate, and the silencing piece is installed on the inner side of the oil blocking bottom plate.

As an optional technical scheme of a cigarette gathering mechanism, the cigarette gathering mechanism further comprises a front plate driving mechanism, the front plate driving mechanism can drive the front cigarette baffle to rotate to open or close the outer air inlet, and the front plate driving mechanism can drive the rotating connecting end of the front cigarette baffle to move back and forth.

As an alternative solution of a smoke gathering mechanism, the front plate driving mechanism includes:

the sliding seat can be arranged in the fume collecting hood in a front-back sliding way along the fume inlet plate, and the rotary connecting end is rotatably arranged on the sliding seat;

and the plate driving assembly is used for driving the front smoke baffle plate to rotate relative to the sliding seat and driving the sliding seat to slide relative to the smoke inlet plate.

As an optional technical scheme of a cigarette gathering mechanism, the cigarette gathering mechanism comprises a front plate driving mechanism, the front cigarette baffle comprises a first turning plate and a second turning plate, two ends of the first turning plate are respectively hinged with the smoke collecting hood and the second turning plate, and the front plate driving mechanism is connected with the second turning plate so as to drive the front cigarette baffle to open or close the outer air inlet.

As an alternative technical scheme of the smoke gathering mechanism, the lower wind shield is provided with a lower ornamental plate forming the front side surface of the lower wind shield, and the heat conductivity coefficient of the lower ornamental plate is lower than that of the smoke collecting cover;

and/or the inner side of the lower wind shield is provided with a heating device;

and/or, the smoke gathering mechanism comprises an oil cup arranged at the bottom of the smoke collecting cover, a condensation preventing plate is arranged on the front side surface of the oil cup, and the heat conductivity coefficient of the condensation preventing plate is lower than that of the oil cup.

A range hood comprises the fume collecting mechanism.

The invention has the beneficial effects that:

according to the smoke gathering mechanism, the smoke gathering cavity is formed by inwards concavely arranging the smoke inlet plate, the rear end of the smoke gathering cavity extends to the rear side of the upper end of the lower wind shield, the front end of the smoke gathering cavity extends to the front side of the upper end of the lower wind shield, the front-rear width of the smoke gathering cavity is increased on the basis that the size of the smoke gathering mechanism in the front-rear direction is unchanged, and the smoke pumping effect is improved; meanwhile, when the smoke gathering mechanism is in a closed state, the front smoke baffle and the lower wind baffle are arranged at a preset obtuse angle, so that the height dimension of the front end of the smoke gathering mechanism can be reduced, the height of the front end of the smoke gathering mechanism is raised, the collision probability of the smoke gathering mechanism and a user is reduced, the structural compactness of the smoke gathering mechanism is improved, and the occupied space of the smoke gathering mechanism is reduced; furthermore, the arrangement of the lower wind shield can stop the oil smoke from flowing to the rear side, guide the oil smoke to enter the smoke collecting cavity, play a role in collecting the oil smoke, and further improve the oil smoke pumping and exhausting effect.

According to the range hood provided by the invention, by adopting the fume collecting mechanism, the fume sucking effect of the fume collecting mechanism can be improved, the occupied space of the range hood is reduced, and the use experience of the range hood is improved.

Drawings

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

fig. 2 is a cross-sectional view of a range hood according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a front smoke baffle in a closed state according to a first embodiment of the present invention;

fig. 4 is a schematic structural view of a front smoke baffle provided in the first embodiment of the present invention in an opened state;

fig. 5 is a schematic view of a split structure of a fume collecting hood according to a first embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a filter and oil blocking component according to a first embodiment of the present invention;

fig. 7 is a schematic structural view of a smoke collecting mechanism provided in the first embodiment of the present invention when a front smoke baffle is in a closed state;

fig. 8 is a schematic structural view of a smoke collecting mechanism provided in the first embodiment of the present invention when a front smoke baffle is in a closed state;

FIG. 9 is a schematic view of a baffle drive mechanism and a front baffle assembly according to a first embodiment of the present invention;

FIG. 10 is a top view of a baffle drive mechanism and smoke inlet plate provided in accordance with a first embodiment of the present invention;

FIG. 11 is a schematic view of a rotating mounting plate and a rotating shaft according to a first embodiment of the present invention;

fig. 12 is a schematic structural diagram of a smoke gathering mechanism according to a second embodiment of the present invention;

FIG. 13 is an enlarged view of a portion of FIG. 12 at I;

fig. 14 is a schematic structural view of a smoke gathering mechanism according to a third embodiment of the present invention;

fig. 15 is a schematic structural diagram of a smoke gathering mechanism according to a fourth embodiment of the present invention;

fig. 16 is a schematic structural view of a smoke gathering mechanism according to a fifth embodiment of the present invention;

fig. 17 is a cross-sectional view of a range hood according to a sixth embodiment of the present invention;

fig. 18 is a cross-sectional view of a range hood according to a sixth embodiment of the present invention;

fig. 19 is a schematic diagram of a split structure of an oil blocking component according to a sixth embodiment of the present invention;

fig. 20 is a schematic structural view of a smoke collecting mechanism provided in the seventh embodiment of the present invention in a fully closed state;

fig. 21 is a schematic structural view of a smoke collecting mechanism according to a seventh embodiment of the present invention in a fully opened state;

fig. 22 is a schematic structural view of a smoke collecting mechanism according to an eighth embodiment of the present invention;

fig. 23 is a schematic structural view of a smoke collecting mechanism provided in an eighth embodiment of the present invention in a closed state;

fig. 24 is a schematic structural view of a smoke collecting mechanism according to an eighth embodiment of the present invention in a fully opened state;

fig. 25 is a schematic structural view of a smoke collecting mechanism provided by a ninth embodiment of the present invention when a lower wind shield is turned open;

Fig. 26 is a schematic structural view of a smoke collecting mechanism provided in the ninth embodiment of the present invention when a lower wind deflector is in a closed state;

fig. 27 is a front view of a smoke gathering mechanism provided by a ninth embodiment of the present invention;

fig. 28 is a schematic structural view of a smoke collecting mechanism according to a tenth embodiment of the present invention;

fig. 29 is a schematic structural view of a smoke collecting mechanism according to an eleventh embodiment of the present invention;

fig. 30 is a schematic structural view of a smoke gathering mechanism according to a twelfth embodiment of the present invention;

fig. 31 is a schematic structural view of a smoke collecting mechanism according to a thirteenth embodiment of the present invention.

The figures are labeled as follows:

100. a smoke gathering mechanism; 200. a pumping mechanism; 201. a wind box; 202. a blower;

1. a fume collecting hood; 11. an upper housing; 111. a cover top plate; 112. a smoke inlet plate; 1121. an outer air inlet; 1122. a rear communication port; 1123. a middle spacer; 113. an upper backboard; 114. an upper side plate; 115. a smoke gathering convex part; 1151. a smoke collecting cavity; 1152. an oil leakage port; 116. a smoke collecting cavity; 117. an oil guiding groove; 118. a front cover plate; 119. an inner air inlet; 1191. a front air inlet; 1192. a rear air inlet; 12. a lower housing; 121. a lower side plate; 122. a cover bottom plate; 1221. an oil collecting port; 123. a lower back plate; 124. an oil collecting cavity; 125. limit edge parts; 13. side baffles;

2. A front baffle assembly; 21. a front smoke baffle; 211. a first flap; 212. a second flap; 22. rotating the mounting plate; 221. a shaft connection portion; 23. a drive mounting plate; 24. a rotating shaft; 25. a hinge base;

3. a front plate driving mechanism; 31. a sliding seat; 311. a board connection portion; 312. a drive connection; 3121. a first connection portion; 3122. a second connecting portion; 313. a connecting ear; 32. a rotation driving part; 321. a rotary drive motor; 322. a drive gear; 323. a driven gear; 324. a connecting rod; 33. a slide driving member; 331. a slide driving motor; 332. a gear set; 333. a drive rack; 334. a screw rod; 335. a pull rope; 336. a reset member; 34. a mounting base;

4. a lower wind deflector; 41. a fixed baffle; 42. a movable baffle; 43. side air inlet; 44. an observation window; 5. a lower plate driving member; 6. a filter screen; 61. a mesh portion; 7. an oil blocking component; 71. an oil baffle bottom plate; 711. a noise reduction hole; 72. a sound deadening member; 73. a cover plate; 8. a heating device; 9. a front plaque; 10. a guide rail; 20. an oil cup detection device; 210. a detection region; 30. an oil cup; 40. and a condensation preventing plate.

Detailed Description

The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The embodiment provides a top-draft type range hood, which can be applied to furniture life to pump kitchen oil smoke, purify kitchen air and promote cooking experience.

As shown in fig. 1 and 2, the range hood provided in the present embodiment includes a smoke collecting mechanism 100 and a suction and exhaust mechanism 200. The smoke gathering mechanism 100 is provided with a smoke gathering cavity 116 and an outer air inlet 1121 communicated with the smoke gathering cavity 116, and the top of the smoke gathering mechanism 100 is provided with a smoke outlet communicated with the smoke gathering cavity 116; the exhaust mechanism 200 is installed at the top end of the smoke gathering mechanism 100, the exhaust mechanism 200 comprises a wind box 201 connected with the top end of the smoke gathering mechanism 100, an exhaust fan 202 arranged in the wind box 201 and the like, the lower end of the wind box 201 is communicated with a smoke outlet, the exhaust fan 202 is used for exhausting smoke, so that negative pressure is formed at the outer air inlet 1121, and the smoke is exhausted out of the smoke exhaust fan through the exhaust fan 202 after entering the wind box 201 through the outer air inlet 1121, the smoke collecting cavity 116 and the smoke outlet.

As shown in fig. 2 to 5, the smoke collecting mechanism 100 includes a smoke collecting hood 1, a baffle mechanism and an oil cup 30, the smoke collecting hood 1 has a front cover plate 118 and a rear cover plate which are arranged opposite to each other in the front-rear direction and at a distance from each other, a hood top plate 111 is connected between the top end of the front cover plate 118 and the top end of the rear cover plate, a smoke outlet is provided in the hood top plate 111, and a bellows 201 is connected to the hood top plate 111. A smoke inlet plate 112 is connected between the lower end of the front cover plate 118 and the rear cover plate, a smoke collecting cavity 116 is formed by surrounding the smoke inlet plate 112, the cover top plate 111, the front cover plate 118 and the rear cover plate, and an outer air inlet 1121 is formed in the smoke inlet plate 112, namely, the smoke inlet plate 112 forms the lower bottom of the smoke collecting cavity 116. An oil cup 30 is mounted at the bottom of the fume collecting hood 1 for receiving waste oil dropped by the fume collecting hood 1 and a baffle mechanism, etc.

As shown in fig. 2-5, in this embodiment, the smoke inlet plate 112 is concavely formed with a smoke collecting cavity 1151, an inner air inlet 119 is provided on a cavity wall of the smoke collecting cavity 1151, the inner air inlet 119 is communicated with the smoke collecting cavity 1151 and the smoke collecting cavity 116, and the smoke enters the smoke collecting cavity 116 through the outer air inlet 1121, the smoke collecting cavity 1151 and the inner air inlet 119.

The baffle mechanism comprises a front baffle assembly 2 and a lower windscreen 4. Wherein, lower deep bead 4 sets up in the lower part front side of collection petticoat pipe 1 and is located the below of advance cigarette board 112, draws in the front end and the rear end of cigarette chamber 1151 and is located the front and back both sides of lower deep bead 4 respectively, is formed with outer air intake 1121 between the upper end of lower deep bead 4 and the front end of drawing in the cigarette chamber 1151. The front baffle assembly 2 includes a front smoke baffle 21, the front smoke baffle 21 is rotatably connected to the front end of the smoke inlet 112 and can selectively open or close the outer air inlet 1121, and when the front smoke baffle 21 closes the outer air inlet 1121, the front smoke baffle 21 and the lower wind baffle 4 are arranged at a preset obtuse angle.

According to the smoke gathering mechanism 100 and the range hood provided by the embodiment, the smoke gathering cavity 1151 is formed by inwards concavely arranging the smoke inlet plate 112, the rear end of the smoke gathering cavity 1151 extends to the rear side of the upper end of the lower wind shield 4, the front end of the smoke gathering cavity 1151 extends to the front side of the upper end of the lower wind shield 4, the front-back width of the smoke gathering cavity 1151 is increased on the basis that the size of the smoke gathering mechanism 100 in the front-back direction is unchanged, and the effect of lampblack suction is improved; meanwhile, when the smoke gathering mechanism 100 is in a closed state, the front smoke baffle 21 and the lower wind baffle 4 are arranged at a preset obtuse angle, so that the height dimension of the front end of the smoke gathering mechanism 100 can be reduced, the height of the front end of the smoke gathering mechanism 100 is raised, the collision probability of the smoke gathering mechanism 100 and a user is reduced, the structural compactness of the smoke gathering mechanism 100 is improved, and the occupied space of the smoke gathering mechanism 100 is reduced; secondly, the arrangement of the lower wind shield 4 can stop the oil smoke from flowing to the rear side, guide the oil smoke to enter the smoke gathering cavity 1151, play a role in gathering the oil smoke, and further improve the oil smoke pumping and exhausting effect.

Further, the air inlet area of the outer air inlet 1121 is smaller than that of the inner air inlet 119, so that a funnel effect can be formed between the main air inlet and the outer air inlet 1121, and meanwhile, as the oil smoke is adsorbed from inside to outside, the flow rate of the oil smoke when reaching the outer air inlet 1121 with smaller air inlet area can be increased, the negative pressure effect is enhanced, and the oil smoke sucking effect can be further improved.

In this embodiment, the two smoke gathering cavities 1151 are arranged side by side along the left-right direction, the outer air inlet 1121 and the inner air inlet 119 are all arranged in one-to-one correspondence with the smoke gathering cavities 1151, the two smoke gathering cavities 1151 are respectively arranged corresponding to two cooking benches of the gas stove, so that the negative pressure of the single smoke gathering cavity 1151 is increased, the oil smoke pumping capacity is improved, the oil smoke dissipation probability is reduced, the processing difficulty of the smoke collecting cover 1 can be reduced, and the overall structural strength and rigidity of the smoke inlet plate 112 and the smoke collecting cover 1 are improved. In other embodiments, only one smoke gathering chamber 1151 may be provided, i.e. the smoke gathering chamber 1151 covers two cooking tops in the left-right direction.

The front smoke baffle 21 and the lower wind shield 4 are provided with one, that is, the front smoke baffle 21 and the lower wind shield 4 cover the two smoke collecting cavities 1151 in the left-right direction, so that the structure of the smoke collecting mechanism 100 is simplified, and the cost is reduced. In other embodiments, one front smoke baffle 21 may be provided for each smoke gathering chamber 1151, and each front smoke baffle 21 may be separately controlled to achieve single-sided selective air intake.

In this embodiment, in order to facilitate the processing of the fume collecting hood 1, the fume collecting hood 1 includes an upper housing 11 and a lower housing 12 which are disposed in a vertically split manner, the upper housing 11 is surrounded to form a fume collecting cavity 116, the fume inlet plate 112 forms the bottom of the upper housing 11, and the front fume baffle 21 is mounted at the front end of the bottom of the upper housing 11; the lower casing 12 is mounted on the bottom rear side of the upper casing 11, the lower casing 12 is surrounded by an oil collecting cavity 124, the lower wind deflector 4 forms the front side of the lower casing 12, and the oil cup 30 is mounted on the bottom of the lower casing 12. Through the upper shell 11 and the lower shell 12 that divide into components of a whole that can function independently about with collection petticoat pipe 1, can reduce the restriction of processing technology to upper shell 11 shape, can improve the processing convenience of drawing in the cigarette chamber 1151 from this, extend and draw in the width of cigarette chamber 1151 in the fore-and-aft direction to increase the air inlet area.

The upper case 11 includes a front cover plate 118 and an upper back plate 113 disposed opposite to each other in front and rear, two upper side plates 114 connected between the front cover plate 118 and the left and right sides of the upper back plate 113, and the cover top plate 111 connected between the front cover plate 118, the upper back plate 113 and the top ends of the upper side plates 114, and a smoke inlet plate 112 connected between the front cover plate 118, the upper back plate 113 and the bottom ends of the upper side plates 114. The intake plate 112 extends obliquely downward from front to rear to guide the oil dirt attached to the intake plate 112 to flow rearward to the rear side of the smoke collecting chamber 116 and be collected by the oil cup 30. That is, the overall longitudinal section of the upper housing 11 is in a right trapezoid structure, and the smoke inlet plate 112 forms the oblique side of the right trapezoid structure. Further, the front decorative plate 9 is attached to the front side of the front cover plate 118, and the front decorative plate 9 is made of glass or plastic material, so as to improve the appearance aesthetics of the smoke gathering mechanism 100 and the range hood.

In the present embodiment, the lower case 12 includes a lower back plate 123, lower side plates 121 provided on both left and right sides of the lower back plate 123, and a cover bottom plate 122 is connected between the lower back plate 123 and bottom ends of the two lower side plates 121. The lower back plate 123, the two lower side plates 121 and the cover bottom plate 122 surround the oil collecting cavity 124 formed with upper and front openings, the rear end of the smoke inlet plate 112 closes the upper opening of the oil collecting cavity 124, and the lower wind shield 4 seals the front opening of the oil collecting cavity 124.

Preferably, the upper back plate 113 is flush with the lower back plate 123 and screwed or riveted, and the upper side plate 114 is flush with the lower side plate 121 of the corresponding side and screwed or riveted, thereby enabling the structural stability of the fume collecting hood 1 to be enhanced, enabling the upper and lower cases 11 and 12 to form a rigidly connected structure, and enabling the processing efficiency to be improved. In other embodiments, the plates on the corresponding sides of the upper and lower cases 11 and 12 may be welded together.

In this embodiment, the oil cup 30 is mounted on the lower side of the lower housing 12, and in order to ensure that the waste oil can flow into the oil cup 30 and be collected by the oil cup 30, the rear side of the smoke inlet plate 112 is provided with an oil passing hole communicated with the oil collecting cavity 124, so that the waste oil on the rear side of the smoke inlet plate 112 flows into the oil collecting cavity 124 through the oil passing hole; an oil collecting port 1221 is formed in the cover bottom plate 122, so that waste oil in the oil collecting cavity 124 can flow into the oil cup 30 through the oil collecting port 1221.

In order to shield the trace of the connection part of the upper shell 11 and the lower shell 12 and improve the overall aesthetic property of the smoke gathering mechanism 100, in the embodiment, the smoke collecting hood 1 further comprises side baffles 13 arranged on the left side and the right side of the upper shell 11, and the side baffles 13 cover the corresponding side surfaces of the upper shell 11 and the lower shell 12, so that the smoke collecting hood 1 is in an integral structure from the outside, the appearance aesthetic property is strong, and the overall structural rigidity and the structural strength of the smoke collecting hood 1 are stronger.

The side guards 13 are preferably bonded to the upper and lower side panels 114 and 121 to avoid perforating or grooving the side guards 13 and to maintain the integrity of the appearance of the side guards 13. More preferably, when the front smoke baffle 21 seals the outer air inlet 1121, the front projection of the front smoke baffle 21, the lower wind baffle 4, the upper shell 11 and the lower shell 12 on the plane of the side baffle 13 is positioned in the range of the side wind baffle, so that the side baffle 13 can visually shield the structure on the smoke collecting hood 1 laterally, and the appearance aesthetic property is further improved; simultaneously, this kind of setting for side shield 13 can extend forward to the front side of stretching out lower deep bead 4, can play well from this and draw in the cigarette effect, reduces the probability that the oil smoke outwards loss, improves the oil smoke suction effect.

Further, the lower wind deflector 4 has a first angle with respect to the vertical plane, and the front side edge of the side baffle 13 has a second angle with respect to the vertical plane, and the first angle is smaller than the second angle.

Specifically, the side baffle 13 has a polygonal structure, the upper side of which is flush with the hood top panel 111, the rear side of which is flush with the back cover panel, the lower side of which is flush with the hood bottom panel 122, the front side of which is flush with the front cover panel 118, and the front oblique side of which is connected between the lower end of the front side and the front end of the lower side. This can simplify the structure of the side shield 13 while ensuring the stopping effect of the side shield 13 against the soot.

In this embodiment, since the rear end of the smoke collecting cavity 1151 is communicated with the smoke collecting cavity 116, part of the smoke enters the smoke collecting cavity 124 through the rear end of the smoke collecting cavity 1151, in order to avoid the smoke escaping or collecting inside the lower shell 12 to form vortex, preferably, the rear side of the smoke inlet plate 112 is provided with a rear communication opening 1122, the rear communication opening 1122 is located at the rear side of the smoke collecting cavity 1151 and is communicated with the smoke collecting cavity 116 and the inner cavity of the smoke collecting cavity 124, and by arranging the rear communication opening 1122, the smoke entering the lower shell 12 can be pumped and discharged to the exhaust fan 202 through the rear communication opening 1122, so as to further improve the effect of smoke pumping. In other embodiments, a separation plate may be used between the rear end of the smoke gathering chamber 1151 and the upper end of the lower wind guard 4, and the separation plate may be formed by the smoke inlet plate 112 itself, or a separate separation plate may be installed on the smoke inlet plate 112 for separation.

The rear communication ports 1122 may have a long structure extending from left to right to simplify the process. The rear communication ports 1122 may have a circular, oval, or polygonal structure, and the rear communication ports 1122 may be provided in plural at intervals in the left-right direction. Preferably, the rear communication ports 1122 are arranged in a strip shape and are arranged in one-to-one correspondence with the smoke collecting cavities 1151.

It should be noted that, since the rear communication port 1122 communicates with the smoke collecting chamber 116 and the oil collecting chamber 124, the rear communication port 1122 may serve as an oil passing hole on the smoke inlet plate 112, that is, oil droplets adhered to the interior of the upper housing 11 and the smoke inlet plate 112 may flow to the lower housing 12 through the rear communication port 1122 and flow from the lower housing 12 to the oil cup 30.

Further, the rear side wall of the smoke collecting chamber 1151 is provided with a drain port with a lower opening, and the drain port is communicated with the smoke collecting chamber 116 and the smoke collecting chamber 1151, so that oil drops attached to the inner wall of the smoke collecting chamber 1151 and the lower wind shield 4 are better guided to flow to the rear side of the smoke inlet plate 112, and then flow into the oil cup 30.

The cross-sectional area of the smoke gathering cavity 1151 gradually decreases from the cavity inlet to the cavity bottom, and the cavity bottom of the smoke gathering cavity 1151 is provided with an air inlet, namely, the cross-sectional area of the smoke gathering cavity 1151 is gradually reduced along the air inlet direction, so that the smoke gathering effect can be better realized, the air inlet speed is enhanced, and the suction effect is improved.

Further, the smoke inlet plate 112 is concavely provided with a smoke gathering convex part 115, and the inner cavity of the smoke gathering convex part 115 forms a smoke gathering cavity 1151. The smoke gathering convex part 115 comprises an air inlet top plate, an air inlet front plate, two air inlet side plates and an air inlet rear plate, wherein the air inlet top plate, the air inlet front plate, the two air inlet side plates and the air inlet rear plate are formed by surrounding, the air inlet front plate is connected to the front side of the air inlet top plate, the two air inlet side plates are respectively connected to the left side and the right side of the air inlet top plate, and the air inlet rear plate is connected to the air inlet top plate and the rear side of the two air inlet side plates.

The air inlet front plate and the air inlet top plate are arranged basically vertically, so that the front side cavity wall of the smoke collecting cavity 1151 is basically parallel to the smoke inlet direction of the smoke collecting cavity 1151, and the probability of the adhesion of the oil smoke on the front side cavity wall is reduced. The air intake top plate extends obliquely downward from front to back to guide oil stain attached to the upper surface of the air intake top plate to flow backward to the rear side of the smoke intake plate 112. The air inlet side plate and the air inlet top plate preferably form an obtuse angle, namely the air inlet side plate extends downwards obliquely from a direction away from the air inlet top plate so as to guide the oil stain attached on the air inlet side plate to flow into the smoke inlet plate 112, and accordingly the oil stain flows from the smoke inlet plate 112 to the rear lower part and flows into the oil cup 30. The air inlet rear plate is preferably arranged in an arc shape, so that the flow of oil drops is guided.

A middle partition 1123 is formed between two adjacent smoke gathering cavities 1151, and adjacent air intake side plates of the two smoke gathering cavities 1151 form left and right sides of the middle partition 1123, so that the middle partition 1123 forms an upwardly open oil guide groove 117. The air inlet side plate is formed with oil guiding grooves 117 as the adjacent upper side plate 114, and the oil guiding grooves 117 in the middle and at both sides can receive the oil smoke dropped from the air inlet side plate and guide the oil drops at the front side of the air inlet side plate 112 to flow backward to the rear side.

In order to filter the oil smoke entering the smoke gathering cavity 1151, a filter screen 6 is installed at the inner air inlet 119, and the filter screen 6 is arranged in one-to-one correspondence with the inner air inlet 119. In order to improve the installation convenience of the filter screen 6, an installation boss is concavely arranged at the bottom of the smoke gathering cavity 1151 upwards and backwards, an installation groove is formed in the installation boss, an inner air inlet 119 is formed in the bottom of the installation groove, the filter screen 6 is installed in the installation groove and covers the inner air inlet 119, and the filter screen 6 is connected with the bottom of the installation groove in a detachable connection mode such as magnetic connection, screw connection or clamping connection.

During the fume exhausting process, the oil drops on the inner wall of the bellows 201 drop downwards along the inner wall of the bellows 201, wherein the oil drops attached to the rear side wall of the bellows 201 drop downwards on the rear side of the fume collecting hood 1, flow into the oil cup 30 through the rear communication port 1122 and the oil collecting port 1221, drop to the front end of the fume inlet plate 112 along the inner wall of the front side of the bellows 201, flow backwards along the fume inlet plate 112 to the rear side of the fume inlet plate 112, and drop downwards into the oil cup 30.

Because the width of the bellows 201 in the left-right direction is smaller than the width of the fume collecting hood 1 in the left-right direction, the left and right side walls of the bellows 201 are opposite to the filter screen 6 with two fume collecting cavities 1151, in order to prevent oil drops attached to the left and right side walls of the bellows 201 from dropping down to the filter screen 6 along the side walls of the bellows 201 and dropping down to the kitchen range table top from the filter screen 6, preferably, the inner air inlet 119 is provided with oil baffle members 7, the oil baffle members 7 are arranged in one-to-one correspondence with the left and right side walls of the bellows 201, and the oil baffle members 7 are obliquely arranged from top to bottom to receive the oil drops dropping from the corresponding side walls of the bellows 201 and guide the oil drops into the oil cup 30 from front to back.

In other embodiments, when only one of the smoke gathering chamber 1151 and the inner air intake 119 is provided, the two oil baffle members 7 may be provided at the same inner air intake 119.

As shown in fig. 2 and 6, in the embodiment, the oil blocking member 7 and the filter screen 6 are integrally formed, that is, the filter screen 6 includes two screen portions 61 disposed side by side left and right, a plurality of meshes are disposed on the screen portions 61, the oil blocking member 7 is in a plate-shaped structure without openings, and the oil blocking member 7 is connected between the two screen portions 61. By the arrangement, the processing of the oil blocking part 7 can be simplified, the processing difficulty of the oil blocking part 7 is reduced, the structure of the smoke gathering mechanism 100 is simplified, and the cost is reduced.

In other embodiments, the oil blocking member 7 may be separately disposed from the filter screen 6 and detachably connected thereto. In still other embodiments, the oil blocking component 7 may also be integrally formed with the fume collecting hood 1, specifically, the inner air inlet 119 includes two sub air inlets spaced left and right, and the top wall of the fume collecting chamber 1151 is disposed between the two sub air inlets in a closed manner, and the structure between the two sub air inlets forms the oil blocking component 7.

The length of the oil blocking member 7 in the front-rear direction is preferably equal to the length of the filter screen 6 to achieve coverage of the filter screen 6 in the front-rear direction. The width of the oil baffle 7 is preferably 20mm to 40mm to prevent the oil drops falling on the oil baffle 7 from flowing to the left and right sides to the filter screen 6. Further, the upper surface of the oil baffle component 7 is provided with an oil guiding groove, and the oil guiding groove extends downwards from front to back in an inclined manner so as to better guide oil drops to flow backwards to the rear side of the smoke inlet plate 112, and the oil drops received by the oil baffle component 7 are prevented from flowing to the filter screen 6 from the left side and the right side, so that the function of collecting waste oil is better achieved.

As shown in fig. 7 and 8, to avoid the front smoke baffle 21 from colliding with a user when rotating to the open position, in this embodiment, the baffle mechanism further includes a front plate driving mechanism 3, the front plate driving mechanism 3 can drive the front smoke baffle 21 to switch between the open state and the closed state, and when the front smoke baffle 21 is in the closed state, the front end of the front smoke baffle 21 is located at the front end of the smoke inlet 112, and when the front smoke baffle 21 rotates to the open state, the rotating connection end of the front smoke baffle 21 can move backward relative to the closed state.

By the arrangement, when the front smoke baffle 21 rotates to the opening position, the whole position of the front smoke baffle 21 can move backwards, so that collision between the front smoke baffle 21 and a user can be reduced, the arrangement of the front smoke baffle 21 is prevented from interfering with the realization of the user, and the use safety and use comfort of the smoke collecting mechanism 100 and the range hood are improved; meanwhile, by means of the arrangement, when the outer air inlet 1121 is closed, the front smoke baffle 21 can cover the smoke inlet 112 in a full screen mode, and appearance attractiveness and cleaning convenience of the range hood are improved. In other embodiments, the front smoke baffle 21 may be rotatably connected to the smoke collecting hood 1 only at the front end.

Preferably, when the front smoke baffle 21 rotates to the open position, the front smoke baffle 21 is flush with the front air inlet plate, so that the effect of gathering smoke of the front smoke baffle 21 can be ensured while the size of the outer air inlet 1121 is increased, and the flow of the smoke to the smoke gathering cavity 1151 can be better guided. In other embodiments, when the front smoke barrier 21 is rotated to the open position, the front smoke barrier 21 extends obliquely forward from top to bottom, and the upper end of the front smoke barrier 21 is located between the front end of the smoke gathering chamber 1151 and the front end of the smoke gathering hood 1.

The front plate driving mechanism 3 comprises a sliding seat 31 and a plate driving assembly, the sliding seat 31 is arranged on the inner side of the smoke inlet plate 112 in a sliding manner, and the rotating connecting end is connected with the sliding seat 31 in a rotating manner; the plate driving assembly is used for driving the front turning plate to rotate relative to the sliding seat 31 and driving the sliding seat 31 to slide. By providing the slide seat 31, the moving position of the rotational connection end of the front smoke baffle 21 can be controlled better, and the convenience in setting the slide driving structure of the front smoke baffle 21 by the front panel driving mechanism 3 can be improved. In other embodiments, the sliding seat 31 may not be provided, that is, the front panel driving mechanism 3 is directly connected to the front smoke baffle 21 through a connecting rod structure or other transmission structures, so that the upper end of the front smoke baffle 21 can move backward when the outer air inlet 1121 is opened by rotating the front smoke baffle 21.

In the present embodiment, the panel driving assembly includes a rotation driving part 32 and a sliding driving part 33, the rotation driving part 32 being mounted to the sliding seat 31 and for driving the front smoke baffle 21 to rotate; the sliding driving part 33 is installed inside the fume collecting hood 1 and used for driving the sliding seat 31 to slide, and the rotating driving part 32 and the sliding driving part 33 can be independently controlled to operate. That is, in the present embodiment, the rotation of the front smoke baffle 21 is controlled by the rotation driving part 32, and the sliding of the front smoke baffle 21 is controlled by the sliding driving part 33, so that the rotation and the sliding of the front smoke baffle 21 can be individually controlled, whereby the angle of rotation and the sliding stroke can be controlled respectively as required, the control accuracy can be improved, the transmission structure between the parts can be simplified, and the flexibility of the transmission structure setting can be improved.

As shown in fig. 7 and 9, in the present embodiment, the slide seat 31 includes a drive connection portion 312 and a plate connection portion 311, the plate connection portion 311 extending in the left-right direction, and the rotation connection end of the front smoke barrier 21 being rotatably connected to the plate connection portion 311; the driving connection portion 312 is vertically connected with the plate connection portion 311, and the driving connection portion 312 is located between the two smoke gathering cavities 1151 and disposed corresponding to the middle partition 1123, the rotation driving member 32 is mounted on the driving connection portion 312, and the sliding driving member 33 is connected with the driving connection portion 312. The structure of the sliding seat 31 can improve the connection convenience of the sliding seat 31, the sliding driving part 33 and the front smoke baffle 21, and improve the installation stability of the front smoke baffle 21; meanwhile, as the driving connecting part 312 is positioned between the two smoke gathering cavities 1151, the damage of the smoke to the sliding driving part 33 and the rotating driving part 32 can be reduced, and the cleaning convenience and the operation safety of the front plate driving mechanism 3 are improved.

It will be appreciated that the panel drive assembly may also be disposed between the smoke gathering chamber 1151 and the corresponding upper side panel 114 when the front smoke baffle 21 and the smoke gathering chamber 1151 are disposed in a one-to-one correspondence, or when only one smoke gathering chamber 1151 is disposed.

As shown in fig. 7 to 9, the driving connection part 312 includes a first connection part 3121 and a second connection part 3122 connected in an L-shape, the first connection part 3121 is slidably disposed on the smoke inlet plate 112, the second connection part 3122 is perpendicular to the smoke inlet plate 112, the rotation driving part 32 is mounted on the second connection part 3122, and the driving end thereof passes through the first connection part 3121 and the smoke inlet plate 112 and is connected with the front smoke baffle plate 21. The driving end of the slide driving member 33 is connected to the second connection portion 3122. The configuration of the drive connection portion 312 can further improve the convenience of mounting the rotation driving member 32, and can easily adjust the mounting angle of the rotation driving member 32, and can also improve the convenience of connection between the slide driving member 33 and the slide seat 31.

Further, as shown in fig. 9 to 11, the left and right ends of the plate connecting portion 311 are extended downward with connecting lugs 313, and the connecting lugs 313 pass through the smoke inlet plate 112 and are rotatably connected with the front smoke baffle 21. Long through holes are formed in the front ends of the left side and the right side of the smoke inlet plate 112, the through holes extend along the sliding direction of the sliding seat 31, the through holes are arranged in one-to-one correspondence with the connecting lug parts 313, and the connecting lug parts 313 are arranged in the through holes in a sliding mode.

In order to improve the convenience of connection of the front baffle assembly 2 and the slide seat 31, the rear side of the front smoke baffle 21 is provided with a rotary mounting plate 22, the rotary mounting plates 22 are arranged in one-to-one correspondence with the connecting lugs 313, and the connecting lugs 313 are rotatably connected with the rotary mounting plates 22 on the corresponding sides through the rotary shafts 24. Thus, the structure of holes and grooves formed in the front smoke baffle 21 can be avoided, and the structural integrity of the front smoke baffle 21 is ensured. The rotary mounting plate 22 is preferably of a long strip structure to increase the contact area of the rotary mounting plate 22 with the front smoke baffle 21, thereby increasing the connection stability of the front smoke baffle 21 and the rotary mounting plate 22.

In the present embodiment, the slide driving part 33 preferably includes a second push rod motor whose case is installed in the hood 1, and whose telescopic rod is connected to the second connection part 3122. In other embodiments, the sliding driving member 33 may have other structures that can slide the sliding seat 31.

In the present embodiment, the front end of the rotation mounting plate 22 is provided with the shaft connection portion 221, the shaft connection portion 221 is located on the front side of the front smoke baffle 21, and the outer end of the shaft connection portion 221 is provided with the rotation shaft 24 in a protruding manner, and the rotation shaft 24 is rotatably connected with the connection ear 313. In another embodiment, the rotation shaft 24 extends in the left-right direction, two ends of the rotation shaft 24 are fixedly connected with the two rotation mounting plates 22 respectively, two ends of the rotation shaft 24 extend out of the corresponding rotation mounting plates 22 respectively, two ends of the rotation shaft 24 are rotatably connected with the two connecting lugs 313 respectively, so that the turning synchronicity of the left and right sides of the front smoke baffle 21 can be ensured, and the turning reliability of the front smoke baffle 21 can be improved.

In this embodiment, the rotation driving part 32 preferably adopts a first push rod motor, the motor casing of which is rotatably mounted on the second connection portion 3122, and the telescopic rod of which is movably connected to the front smoke baffle 21 after passing through the first connection portion 3121. In order to improve the connection convenience of the rotation driving part 32 and the front smoke baffle 21, the back plate of the front smoke baffle 21 is provided with a driving mounting plate 23, the driving mounting plate 23 is convexly provided with a hinge seat 25, and the driving end of the rotation driving part 32 is hinged with the hinge seat 25 so as to avoid forming a hole and groove structure on the front smoke baffle 21.

In this embodiment, the driving mounting plate 23 and the rotating mounting plate 22 are both of a strip-shaped structure, and a plurality of glue overflow holes are formed along the length direction of the strip-shaped structure, the driving mounting plate 23 and the rotating mounting plate 22 are adhered to the front smoke baffle 21, and excessive glue overflows from the glue overflow holes, so that the mounting reliability of the driving mounting plate 23 and the rotating mounting plate 22 on the front smoke baffle 21 is improved.

As shown in fig. 10, to improve the sliding reliability of the sliding seat 31, the smoke gathering mechanism 100 further includes a sliding guide assembly, wherein the sliding guide assembly includes a guide sliding rail 10 laid on the smoke inlet plate 112 and a sliding block in sliding fit with the guide sliding rail 10, and the sliding block is connected with the sliding seat 31, so that the sliding smoothness of the sliding seat 31 can be improved by providing a guide for the sliding of the sliding seat 31 through the sliding guide assembly. Preferably, two sliding guide assemblies are arranged, and the two sliding guide assemblies are respectively positioned on one side of the two smoke gathering cavities 1151, which are opposite to each other, so that the stability of stress at two ends of the sliding seat 31 is improved, the sliding guide assemblies can be separated from the rotation driving part 32 and the sliding driving part 33, the layout rationality in the smoke gathering cavities 1151 of each structure is improved, and the probability of interference between the structures is reduced.

Example two

As shown in fig. 12 and 13, the embodiment of the present invention provides a smoke collecting mechanism 100 and a range hood, and the structure of the smoke collecting mechanism 100 and the range hood provided in the embodiment is substantially the same as that of the first embodiment, only the arrangement of the plate driving components is different, and the embodiment will not be repeated for the same structure as that of the first embodiment.

Specifically, the panel driving assembly includes a rotary driving motor 321 and a transmission assembly, the rotary driving motor 321 is installed in the fume collecting hood 1, the rotary driving motor 321 drives the front fume blocking panel 21 to open the outer air inlet 1121 through the transmission assembly and simultaneously drives the rotary connecting end of the front fume blocking panel 21 to move backwards, and synchronously drives the rotary connecting end of the front fume blocking panel 21 to move forwards when the front fume blocking panel 21 is driven to close the outer air inlet 1121.

That is, the front plate driving mechanism 3 provided in this embodiment is provided with only one rotary driving motor 321, and the rotary driving motor 321 drives the front smoke baffle 21 to rotate and the movement of the rotating connection end, so that the number of driving parts can be reduced, and the cost can be reduced.

The motor shaft of the rotary driving motor 321 is arranged along the left-right direction, a driving gear 322 is sleeved on the motor shaft of the rotary driving motor 321, and the transmission assembly comprises a rotation transmission assembly and a sliding transmission assembly. The rotary driving motor 321 drives the front smoke baffle 21 to rotate through the rotary transmission assembly, and the rotary driving motor 321 drives the sliding seat 31 to slide through the sliding transmission assembly.

The rotation transmission assembly comprises a connecting rod 324 and a driven gear 323, the driven gear 323 is rotatably arranged on the sliding seat 31 and meshed with the driving gear 322, and the connecting rod 324 is connected between the driven gear 323 and the front smoke baffle 21; the sliding transmission assembly comprises a transmission rack 333, the transmission rack 333 is arranged on the smoke inlet plate 112 along the sliding direction and fixedly connected with the smoke inlet plate 112, and the driving gear 322 is in transmission connection with the transmission rack 333.

That is, when the motor shaft of the rotary driving motor 321 rotates, the motor shaft drives the driving gear 322 to rotate, and the driving gear 322 drives the driven gear 323 to rotate, thereby driving the connecting rod 324 to rotate and further driving the front smoke baffle 21 to rotate; meanwhile, the rotation of the driving gear 322 drives the driving gear 322 to move relative to the driving rack 333, so that the whole sliding seat 31 slides relative to the smoke inlet plate 112.

Preferably, the driven gear 323 is a sector gear, and the link 324 is connected to the end of the sector gear to improve the connection convenience of the link 324 and the driven gear 323, so that the driven gear 323 and the link 324 can be installed in the same plane. Further, the driven gear 323 and the connecting rod 324 are integrally formed, so that the connection strength between the driven gear 323 and the connecting rod 324 is enhanced, the probability of deformation of the connecting rod 324 is reduced, and the driven gear 323 and the front smoke baffle 21 are ensured to synchronously rotate.

The connecting rod 324 is preferably arc-shaped with an opening facing forward and upward, and the connecting rod 324 is preferably vertically connected with the front smoke baffle 21, so that space occupied by the rotating connecting rod 324 is saved, the structural compactness is improved, and the probability of convenience in stress of the connecting rod 324 is reduced.

In this embodiment, the sliding transmission part further includes a gear set 332, where the gear set 332 is meshed between the driving gear 322 and the transmission rack 333, so that direct meshing between the driving gear 322 and the transmission rack 333 can be avoided, and thus the layout flexibility of the driving gear 322 and the transmission rack 333 can be improved, and the speed of sliding operation can be controlled by setting the number of gears in the gear set 332 and the transmission ratio.

In this embodiment, the gear set 332 includes three gears that are sequentially engaged, and two gears at both ends are engaged with the driving gear 322 and the driving rack 333, respectively. It will be appreciated that the number of gears in the gear set 332 and the gear ratios of adjacent gears may be specifically considered based on the angle of the front smoke barrier 21 being flipped from the open state to the closed state and the distance the front smoke barrier 21 is moved back during flipping, and the present embodiment is not limited thereto.

Preferably, to avoid interference between the sliding transmission assembly and the rotating transmission assembly, the driving gear 322 is a double gear having two gear portions coaxially and alternately disposed, one of the gear portions being meshed with the gear set 332, and the other gear portion being meshed with the gear set 332, thereby enabling the gear set 332 and the rotating transmission assembly to be located in two vertical planes, and effectively avoiding interference between the structures.

Example III

As shown in fig. 14, the embodiment of the present invention provides a smoke collecting mechanism 100 and a range hood, and the structure of the smoke collecting mechanism 100 and the range hood provided in the embodiment are the same as those of the first embodiment, only the arrangement of the front plate driving mechanism 3 is different, and the embodiment will not be repeated for the same structure as that of the first embodiment.

In this embodiment, the rotation driving member 32 and the sliding driving member 33 are separately provided, and the rotation driving member 32 may adopt the push rod motor in the first embodiment, or may adopt the structure of the rotation driving motor 321 in the second embodiment in cooperation with the rotation transmission assembly to drive the front smoke baffle 21 to rotate, and the embodiment does not limit the structure of the rotation driving member 32 for realizing the rotation of the front smoke baffle 21.

In this embodiment, the sliding driving part 33 includes a sliding driving motor 331, a pull rope 335 and a resetting piece 336, the rotation shaft of the sliding driving motor 331 extends along the left-right direction, one end of the pull rope 335 is wound on the rotation shaft of the sliding driving motor 331, the other end is connected to the sliding seat 31, and two ends of the resetting piece 336 are respectively connected to the sliding seat 31 and the smoke collecting cover 1. The sliding driving motor 331 pulls the sliding seat 31 to move in a direction approaching the sliding driving motor 331 through the pull rope 335, and the reset piece 336 is used for applying a restoring force far from the sliding driving motor 331 to the sliding seat 31.

That is, in the present embodiment, when the slide driving motor 331 rotates, the pulling rope 335 is wound around the rotation shaft of the slide driving motor 331, thereby pulling the slide seat 31 to slide in a direction approaching the slide driving motor 331, that is, the front end of the front smoke baffle 21 is moved backward; when the sliding driving motor 331 stops rotating, the sliding seat 31 can slide along a direction away from the sliding driving motor 331 under the elastic restoring force of the restoring member 336, so that the pull rope 335 is released from the rotating shaft, and the sliding seat 31 drives the front smoke baffle 21 to return to the initial position from the backward position.

In this embodiment, the sliding driving motor 331 adopts a self-locking motor, the motor shaft of which can be limited and locked when rotating to any angle, the range hood is provided with a controller, the controller controls the sliding driving motor 331 to switch between a self-locking state and an unlocking state, and when the sliding driving motor 331 is in the unlocking state, the pull rope can drive the rotating shaft of the sliding driving motor 331 to rotate so as to release the pull rope from the rotating shaft. Therefore, the front smoke baffle plate can be ensured to be in an open state stably. The motor capable of realizing self-locking and releasing of the rotating shaft is an existing mature product, and the structure of the motor is not repeated in the embodiment.

In the arrangement, the sliding driving motor 331 with smaller size can be selected, so that the overall cost of the front plate driving mechanism 3 is reduced, and the cost of the smoke gathering mechanism 100 is reduced; meanwhile, because the occupied space of the pull rope 335 and the reset piece 336 is smaller, and the space layout requirement is lower, the whole occupied space of the sliding driving part 33 can be reduced, the probability of interference of the internal structure of the smoke collecting cavity 116 is reduced, and the compactness and the layout flexibility are improved.

In the present embodiment, the sliding driving motor 331 is disposed at the rear side of the smoke collecting cavity 116, so that the sliding driving motor 331 is far away from the outer air inlet 1121, thereby reducing the damage of the smoke to the sliding driving motor 331 and improving the safety and reliability of the sliding driving motor 331; meanwhile, the sliding driving motor 331 is arranged at the rear side of the smoke collecting cavity 116 and can be better separated from the sliding seat 31, so that the internal space layout rationality of the smoke collecting cavity 116 is improved, and the interference probability between structures is reduced.

The pull rope 335 may be a steel wire rope or a flexible rope structure with a certain flexibility and good strength, such as a fishing line.

In the present embodiment, the return member 336 is disposed at the rear side of the slide holder 31, and the front end is connected to the slide holder 31, and the rear end is connected to the fume collecting hood 1, and the return member 336 is compressed when the slide holder 31 slides from the initial position to the rearward position. In other embodiments, the return member 336 may be disposed at the front side of the second connection portion 3122, and the rear end thereof is connected to the second connection portion 3122, and the front end is connected to the front cover plate 118 of the hood 1, and the return member 336 is in an extended state when the slide mount 31 is slid from the initial position to the rearward position.

Further, a guiding column is disposed inside the smoke collecting cavity 116, the guiding column extends along the sliding direction of the sliding seat 31, and the reset piece 336 is sleeved on the guiding column to guide the deformation direction of the reset piece 336, so as to better determine the direction of the elastic restoring force of the reset piece 336. The return member 336 is preferably a spring, which is relatively inexpensive.

The rear side of the smoke collecting cavity 116 is preferably further provided with a pressing block, the pressing block is connected to the rear end of the guide post, and the rear end of the elastic piece is pressed against the pressing block, so that the length of the reset piece 336 in the initial state can be adjusted, and the flexibility of selecting the reset piece 336 is improved. The pressing block is preferably detachably connected with the fume collecting hood 1.

Example IV

As shown in fig. 15, the embodiment of the present invention provides a smoke collecting mechanism 100 and a range hood, and the structure of the smoke collecting mechanism 100 and the range hood provided in the embodiment are the same as those of the first embodiment, only the arrangement of the front plate driving mechanism 3 is different, and the embodiment will not be repeated for the same structure as that of the first embodiment.

In this embodiment, the sliding driving part 33 includes a sliding driving motor 331 and a screw rod 334, the screw rod 334 extends along the sliding direction of the sliding seat 31, the sliding driving motor 331 is installed in the fume collecting hood 1 and is connected with the rear end of the screw rod 334, the front end of the screw rod 334 is rotatably connected with the fume collecting hood 1, and the sliding driving motor 331 drives the screw rod 334 to rotate. The sliding driving part 33 further comprises a nut seat sleeved on the screw rod 334, and the nut seat is connected to the sliding seat 31. Therefore, when the sliding driving motor 331 rotates, the screw rod 334 rotates to drive the nut seat to move along the length direction of the screw rod 334, so as to drive the sliding seat 31 to move and further drive the front smoke baffle 21 to slide.

Further, the front side of the smoke collecting cavity 116 is provided with the mounting seat 34, the rear side of the mounting seat 34 is provided with a mounting surface perpendicular to the smoke inlet plate 112, and the front end of the screw rod 334 is rotatably mounted on the mounting surface, so that the extending direction of the screw rod 334 is ensured to be the same as the sliding direction of the sliding seat 31, the mounting precision of the screw rod 334 is improved, and meanwhile, the mounting convenience of the screw rod 334 in the smoke collecting cavity 116 is also improved.

In the present embodiment, the sliding driving motor 331 is disposed at the rear side of the smoke collecting cavity 116, so that the sliding driving motor 331 is far away from the outer air inlet 1121, thereby reducing the damage of the smoke to the sliding driving motor 331 and improving the safety and reliability of the sliding driving motor 331; meanwhile, the sliding driving motor 331 is arranged at the rear side of the smoke collecting cavity 116 and can be better separated from the sliding seat 31, so that the internal space layout rationality of the smoke collecting cavity 116 is improved, and the interference probability between structures is reduced. In other embodiments, the slide driving motor 331 may be disposed at the front side of the smoke collecting chamber 116 when the layout space meets the requirement.

Example five

As shown in fig. 16, this embodiment provides a smoke collecting mechanism 100 and a range hood, and the basic structure of the smoke collecting mechanism 100 provided in this embodiment is the same as that of the first embodiment, and only the arrangement of the baffle mechanism is different, so that the description of the same contents of the first embodiment will not be repeated.

In this embodiment, the baffle mechanism includes a front baffle assembly 2 and a front plate driving mechanism 3, the front baffle assembly 2 includes two hinged first turning plates 211 and second turning plates 212, two ends of the first turning plates 211 are respectively hinged with the second turning plates 212 and the fume collecting hood 1, and the driving end of the front plate driving mechanism 3 is connected with the second turning plates 212, so that the front plate driving mechanism 3 drives the second turning plates 212 to rotate, and the rotation of the second turning plates 212 drives the first turning plates 211 to rotate, so that the front baffle assembly 2 is switched between an open state and a closed state.

When the front baffle assembly 2 is in an open state, the first turning plate 211 and the second turning plate 212 are arranged at an obtuse angle, and the inclination angle of the first turning plate 211 relative to the vertical direction is larger than that of the second turning plate 212 relative to the vertical direction; when the front flap assembly 2 is in the closed state, the first flap 211 and the second flap 212 are spliced in the front-rear direction, and the rear end of the second flap 212 is abutted with the lower windshield 4.

The structure of the baffle mechanism can ensure that the front baffle assembly 2 covers the bottom of the fume collecting hood 1 in the front-back direction and simultaneously lifts the lower end height of the front baffle assembly 2 in an opened state, so that the probability of collision with a user after the front baffle assembly 2 is opened is reduced; meanwhile, when the smoke sucking device is opened, the first turning plate 211 and the second turning plate 212 are arranged at an obtuse angle, so that the area can be increased, the smoking effect is improved, and the pumping effect is improved.

In this embodiment, the front plate driving mechanism 3 includes a push rod motor, a motor housing of the push rod motor is rotatably mounted inside the fume collecting hood 1, and a telescopic rod of the push rod motor movably extends out of the fume inlet plate 112 and the tail end of the telescopic rod is hinged with the second turning plate 212. The front plate driving mechanism 3 is simple in structure and easy to arrange. In other embodiments, other driving structures may be used to implement the rotation driving of the second flap 212, for example, the rotation driving structure in the second embodiment may be used. The present embodiment does not limit the form of the driving structure for realizing the inversion of the second flap 212.

Example six

As shown in fig. 17 to 19, the embodiment of the present invention provides a smoke collecting mechanism 100 and a range hood, and the basic structures of the smoke collecting mechanism 100 and the range hood provided in the embodiment are the same as those of the first embodiment, only the arrangement of the oil blocking member 7 is different, and the embodiment will not be repeated for the same contents as the first embodiment.

In this embodiment, the oil blocking component 7 is separately arranged with the filter screen 6, and the oil blocking component 7 is detachably connected with the filter screen 6 or the smoke gathering convex part 115, so that the structure of the filter screen 6 adopts a generalized structure, the processing cost of the filter screen 6 is reduced, the modularized arrangement of the filter screen 6 is improved, and meanwhile, the structural design flexibility of the oil blocking component 7 can be improved, so that the structural arrangement of the oil blocking component 7 is not limited by the structure of the filter screen 6.

The oil blocking part 7 is preferably detachably connected with the filter screen 6, so that the oil blocking part 7 and the filter screen 6 can be cleaned respectively, and the cleaning convenience of the filter screen 6 is improved. In other embodiments, the oil blocking member 7 may also be welded to the filter screen 6.

Further, the oil blocking member 7 is mounted on the outer side of the smoke gathering convex portion 115 and detachably connected to the top surface of the smoke gathering convex portion 115. In an embodiment, the front end and the rear end of the oil blocking part 7 are connected with the smoke gathering convex part 115 through fastening screws, and the fastening screws are preferably screwed on the filter screen 6, so that the fastening among the filter screen 6, the smoke gathering convex part 115 and the oil blocking part 7 is realized, and the fastening effect is improved. In other embodiments, the oil blocking member 7 and the smoke gathering convex portion 115 may be connected by clamping or riveting.

Further, the oil blocking component 7 comprises an oil blocking bottom plate 71 and a silencing piece 72, the oil blocking bottom plate 71 is connected with the filter screen 6 or the fume collecting hood 1, a plurality of noise reduction holes 711 are formed in the oil blocking bottom plate 71, and the silencing piece 72 is installed on the inner side of the oil blocking bottom plate 71. Therefore, under the condition that waste oil on the bellows 201 is received and drained by the oil baffle component 7, noise at the inner air inlet 119 can be reduced, noise generated by operation of the range hood is reduced, and use experience of the range hood is improved.

In other embodiments, the oil blocking member 7 may have only an oil blocking function, i.e. the oil blocking member 7 has a U-shaped structure or a flat plate structure, and the U-shaped opening of the oil blocking member 7 is disposed upward, and the U-shaped groove forms the oil guiding groove 117 to better receive the waste oil flowing down from the bellows 201, so as to avoid the turbulent flow of the oil stain.

The silencer 72 can be made of silencing cotton, is low in cost, and does not interfere with the receiving of waste oil. However, it is understood that the muffler 72 may have other structures, for example, the muffler 72 may be a muffler plate opposite to the oil baffle plate 71 and disposed at intervals, and the muffler plate is provided with muffler holes, and the muffler holes and the noise reducing holes 711 are disposed in a staggered manner in the projection plane of the oil baffle plate 71, so as to achieve a noise reduction effect.

The oil baffle bottom plate 71 is of a box-shaped structure, the silencing piece 72 is positioned inside the box-packed structure, and a silencing hole is formed in the box bottom of the box-packed structure. The arrangement of the oil baffle bottom plate 71 of the box structure can provide positioning for the installation of the silencing piece 72, and on the other hand, the waste oil received by the box structure is prevented from flowing to the filter screen 6 along the left side and the right side.

The aperture of the noise reduction hole 711 is smaller than the mesh aperture of the filter screen 6, so that the damage of greasy dirt to the silencer 72 can be reduced, and the usability of the silencer 72 can be ensured. The muffler 72 may be attached to the oil deflector 71 by means of bonding or screw connection, and the connection structure of the muffler 72 and the oil deflector 71 is not limited in this embodiment.

Further, the oil blocking member 7 further includes a cover plate 73, the cover plate 73 is detachably connected to the oil blocking bottom plate 71, and the muffler 72 is interposed between the cover plate 73 and the oil blocking bottom plate 71. The cover plate 73 can prevent the received oil drops from dripping onto the silencer 72, further improve the oil blocking effect and better ensure the silencing effect.

In this embodiment, the cover 73 may have a flat plate structure, and the cover 73 is inserted into the box structure to reduce the probability of oil flowing along the cover 73 to the left and right sides. In other embodiments, the cover plate 73 may be in a box structure with an opening facing the oil baffle bottom plate 71, and the cover plate 73 covers the upper end of the oil baffle bottom plate 71 and closes the opening of the upper end of the oil baffle bottom plate 71. With this arrangement, the cover plate 73 may be provided with an oil drain groove.

It should be noted that the baffle mechanism in this embodiment may be any of the baffle mechanisms of the first to fifth embodiments.

Example seven

As shown in fig. 20 and 21, the present embodiment provides a smoke collecting mechanism 100 and a range hood, and the smoke collecting mechanism 100 and the range hood provided in the present embodiment are based on further improvements of the structure in the first embodiment, and the present embodiment will not be described in detail in the same manner as in the first embodiment.

In this embodiment, the lower side of the lower wind deflector 4 is rotatably connected with the smoke collecting hood 1, so that a side air inlet 43 which can be selectively opened or closed is formed between the upper end of the lower wind deflector 4 and the smoke inlet plate 112, and when the side air inlet 43 is opened, the side air inlet 43 is communicated with the outer air inlet 1121, thereby being capable of changing the area of the smoke collecting cavity 1151 and improving the smoke inlet effect.

In the present embodiment, the smoke gathering mechanism 100 has a closed state and a fully opened state, when the smoke gathering mechanism 100 is in the closed state, the side air inlet 43 is closed by the lower wind deflector 4, the outer air inlet 1121 is closed by the front smoke baffle 21, and the rear end of the front smoke baffle 21 is abutted with the upper end of the lower wind deflector; when the smoke gathering mechanism 100 is in a fully opened state, the upper end of the lower wind shield 4 turns forward, the outer air inlet 1121 and the side air inlet 43 are both opened, and the air inlet area is increased; meanwhile, as the upper end of the outer air inlet 1121 moves downwards, the outer air inlet 1121 is closer to the cooking bench, and the oil smoke sucking effect is improved; furthermore, since the upper end of the lower wind deflector 4 rotates forward and downward, the distance between the upper end of the lower wind deflector 4 and the smoke inlet plate 112 increases, and thus the effect of smoke exhaust can be further increased.

That is, the smoke gathering mechanism 100 provided in this embodiment can change the smoke gathering area of the smoke gathering chamber 1151 by rotating the front smoke baffle 21 and rotating the lower wind baffle 4, thereby changing the smoke gathering effect of the smoke gathering chamber 1151 and further changing the effect of smoke exhaust. During actual use, only the front smoke baffle 21 or both the front smoke baffle 21 and the lower wind deflector 4 may be selectively opened according to cooking needs, so that efficiency and cost are combined.

In this embodiment, the smoke collecting mechanism 100 further includes a lower plate driving member 5, where the lower plate driving member 5 is used to drive the lower wind deflector 4 to switch between a closed state and an open state, and adjust an opening angle of the lower wind deflector 4, so as to implement automatic control of turning of the lower wind deflector 4, and improve operation intellectualization and automation of the range hood.

The lower plate driving piece 5 can adopt a push rod motor, a motor shell of the push rod motor can be rotatably arranged on the smoke inlet plate 112, and a driving end of the push rod motor is hinged with the lower wind shield 4.

Further, the lower end of the lower wind shield 4 is always located at the inner side of the oil cup 30, so that oil drops attached to the lower wind shield 4 can slide downwards into the oil cup 30, and the oil drops are prevented from dripping on a cooking bench.

The rotation angle of the lower wind deflector 4 is preferably 0 to 45 ° so as to avoid interference with the oil cup 30 due to an excessive rotation angle of the lower wind deflector 4.

To avoid the rotation of the lower windshield 4 interfering with the rotation of the front smoke baffle 21, it is preferable that when the smoke gathering mechanism 100 needs to be switched to the fully open state, the front smoke baffle 21 is controlled to rotate to the open position by the controller, and then the lower windshield 4 is controlled to rotate. With this arrangement, when the smoke collecting mechanism 100 is in the fully closed state, the distance between the upper end of the lower wind shield 4 and the front smoke baffle 21 is smaller, so that the appearance attractiveness of the smoke collecting mechanism 100 and the range hood is improved.

In other embodiments, the distance between the rear end of the front smoke baffle 21 and the upper end of the lower wind baffle 4 can be increased when the front smoke baffle is in the fully closed state, so that the front smoke baffle and the lower wind baffle are not interfered with each other in rotation.

It should be noted that the arrangement of the front smoke baffle 21 assembly and the front panel driving mechanism 3 in the present embodiment may employ the arrangement of the front smoke baffle 21 and the front panel driving mechanism 3 in any of the first to fifth embodiments.

Example eight

As shown in fig. 22 to 24, the present embodiment provides a smoke collecting mechanism 100 and a range hood, and the smoke collecting mechanism 100 provided in the present embodiment is based on a further improvement of the structure in the first embodiment, and the present embodiment will not be repeated for the same contents as the first embodiment.

In the present embodiment, the lower wind deflector 4 includes a fixed baffle 41 and a movable baffle 42, the fixed baffle 41 is provided with a side air inlet 43, and the movable baffle 42 can move relative to the fixed baffle 41 to selectively open or close the side air inlet 43.

By providing the side air inlet 43 on the fixed baffle 41 and providing the movable baffle 42 capable of opening or closing the side air inlet 43, the air inlet position of the smoke gathering mechanism 100 can be increased when the side air inlet 43 is opened, thereby increasing the air inlet area of the smoke gathering cavity 116 and improving the air inlet effect and the smoke exhaust effect. Meanwhile, the side air inlet 43 is lower than the outer air inlet 1121, so that the side air inlet 43 is arranged closer to the cooking bench, the oil smoke pumping effect can be further enhanced, and the use flexibility of the smoke gathering mechanism 100 is improved.

In this embodiment, the outer air inlet 1121 and/or the side air inlet 43 may be selectively opened according to the cooking fume generated by cooking, for example, in the quick-frying state, the amount of fume is large, and at this time, the side air inlet 43 and the outer air inlet 1121 may be simultaneously opened; when the amount of the oil smoke is relatively small and the cooking appliance is a short appliance, only the side air inlet 43 can be opened, so that the interference between the range hood and the cooking appliance is avoided while the oil smoke pumping and discharging effect is enhanced; when the amount of the oil smoke is relatively small and the cooking appliance is a high appliance such as a steamer, the side air inlet 43 can be closed, and the outer air inlet 1121 is opened, so that the interference between the movable baffle plate 42 and the cooking appliance is avoided while the oil smoke sucking effect is ensured, and the use flexibility and the use safety of the range hood are improved.

In this embodiment, the smoke gathering mechanism 100 further includes a lower plate driving member 5, and the lower plate driving member 5 drives the movable shutter 42 to move in a direction away from or toward the fixed shutter 41 to close or open the side smoke inlet. This kind of setting can reduce the interference between movable baffle 42 and other structures, and makes the area setting of movable baffle 42 can not be limited by the size of gathering oil chamber 124, can increase the size of side air inlet 43, also can reduce the probability that movable baffle 42 interfered with user or cooking utensil simultaneously, improves the safety in utilization of gathering cigarette mechanism 100.

When the lower wind shield 4 closes the side air inlet 43, the front side surfaces of the movable baffle plate 42 and the fixed baffle plate 41 are preferably flush, so that the appearance attractiveness of the smoke gathering mechanism 100 and the range hood is improved; when the lower wind shield 4 opens the side air inlet 43, the movable baffle 42 is located at the front side of the fixed baffle 41 and is spaced from the fixed baffle 41, so as to avoid that the side movable baffle 42 is located at the inner side of the oil collecting cavity 124 to obstruct the upward flow of the smoke.

In other embodiments, the flapper 42 may also be rotatably coupled to the fixed flapper 41 such that the flapper 42 can rotate to open or close the side air intake 43; in other alternative embodiments, the flapper 42 may also be slidably coupled to the fixed flapper 41 to open or close the side air intake 43.

In this embodiment, the lower plate driving member 5 may adopt a push rod motor, a motor casing of the push rod motor is installed in the oil collecting cavity 124 through a motor base, and a telescopic rod of the push rod motor is connected with the movable baffle 42. In other embodiments, other forms of drive arrangements may be provided to actuate the flapper 42.

Example nine

As shown in fig. 25-28, the present embodiment provides a smoke collecting mechanism 100 and a range hood, and the smoke collecting mechanism 100 and the range hood provided in the present embodiment are based on further improvements of the structure in the first embodiment, and the description of the same contents as those in the first embodiment will not be repeated.

In this embodiment, the upper end of the lower wind guard 4 is rotationally connected with the fume collecting hood 1, so that the lower end of the lower wind guard 4 turns backwards, and a side air inlet 43 is formed between the lower end of the lower wind guard 4 and the fume collecting hood 1, and the side air inlet 43 is communicated with the inner cavity of the oil collecting cavity 124, so that the air inlet position can be increased, the air inlet effect is improved, and the fume pumping effect is improved.

Further, an installation space for installing the oil cup 30 is formed in the oil collecting chamber 124, the installation space having a front side opening, and the oil cup 30 being installed in the installation space and being accessible to the installation space through the front side opening. The lower wind shield 4 can be opened and rotated to open or close the front side opening, and when the lower wind shield 4 closes the front side opening, the lower wind shield 4 is positioned at the front side of the oil cup 30 and shields the oil cup 30, so that the oil cup 30 is hidden at the back side of the lower wind shield 4, and the appearance simplicity of the smoke gathering mechanism 100 is improved; when the lower wind deflector 4 opens the front side opening, the oil cup 30 can be taken and put through the front side opening to realize replacement of the oil cup 30. In the present embodiment, the lower portion of the oil collecting chamber 124 forms an installation space.

In this embodiment, the lower wind deflector 4 is rotatably connected to the fume collecting hood 1 to selectively open or close the front opening, and in other embodiments, the lower wind deflector 4 may also be selectively opened or closed to the front opening by other means, for example, the lower wind deflector 4 may be detachably connected to the fume collecting hood 1, or the lower wind deflector 4 may be provided as an upper plate portion and a lower plate portion in sliding connection, and the lower plate portion may slide relative to the upper plate portion to open or close the front opening.

The smoke gathering mechanism 100 further comprises a lower plate driving piece 5, and the lower plate driving piece 5 drives the lower wind shield 4 to rotate. The lower plate driving member 5 may adopt a push rod motor or other driving structure capable of realizing the rotation of the lower wind deflector 4, which is not limited in this embodiment.

In the present embodiment, the rear end of the smoke gathering chamber 1151 is spaced from the oil collecting chamber 124, so that the intrusion of the smoke entering the smoke gathering chamber 1151 into the lower plate driving member 5 can be reduced. The separation structure can adopt a structure formed by the smoke inlet plate 112, and the separation plate can be arranged on the smoke inlet plate 112 to realize the separation between the smoke collecting cavity 1151 and the oil collecting cavity 124.

Further, the rear side wall of the smoke gathering chamber 1151 is provided with an oil leakage port 1152 with a lower opening, the rear end of the smoke inlet plate 112 is provided with a rear communication port 1122, and the rear communication port 1122 is communicated with the oil collecting cavity 124 so as to better guide oil drops attached to the separation structure to flow to the rear side of the smoke inlet plate 112 and flow into the oil cup 30.

Further, be provided with transparent observation window 44 on the lower deep bead 4, user's accessible observation window 44 observes the inside oil cup 30 of collection petticoat pipe 1 to judge the oil mass in the oil cup 30, make things convenient for the user to judge the clearance or the change opportunity of oil cup 30 according to the observation result, improve user's use experience.

Preferably, the two observation windows 44 are arranged at intervals along the left-right direction, so that the accuracy of the observation result is improved, and meanwhile, the convenience of user observation is improved, so that the user can observe the state of the oil cup 30 in the cooking process.

In order to ensure the sealing stability of the lower wind guard 4 to the front side opening, in this embodiment, the upper end of the lower wind guard 4 is rotationally connected with the fume collecting hood 1, and the lower end is connected with the fume collecting hood 1 through a clamping connection, a magnetic connection or other detachable connection modes, so that the lower wind guard 4 is in a stable closed state when the oil cup 30 is not required to be removed, and when the oil cup 30 is required to be removed, the lower end of the wind guard 4 can be manually removed, so that the lower wind guard 4 can be opened, and then the oil cup 30 is taken out for replacement.

In this embodiment, the oil cup 30 is directly placed on the hood bottom plate 122, so as to save the installation structure of the oil cup 30 on the fume collecting hood 1, and improve the convenience of taking and placing the oil cup 30. In order to avoid the oil cup 30 to slide out of the installation space, the front side of the cover bottom plate 122 is bent upwards to form a limiting edge 125, the limiting edge 125 can stop the oil cup 30, the oil cup 30 is prevented from falling out of the installation space, and the setting stability of the oil cup 30 is improved.

Further, when the lower wind deflector 4 closes the front side opening, the lower end of the lower wind deflector 4 abuts against the front side surface of the limit edge portion 125, thereby enabling to ensure the reliability of closing the front side opening by the lower wind deflector 4 and to reduce the gap between the lower end of the lower wind deflector 4 and the smoke collecting hood 1.

In order to improve the cleaning convenience of the oil cup 30 and avoid the overflow of the oil in the oil cup 30, preferably, the oil collecting cavity 124 is further provided with an oil cup detecting device 20, and the oil cup detecting device 20 is used for detecting whether the oil amount in the oil cup 30 is greater than a preset cleaning condition, so as to determine whether the oil cup 30 meets the preset cleaning condition.

In this embodiment, the fume collecting hood 1 is internally provided with the oil cup detection device 20, the range hood includes a controller, the oil cup detection device 20 is used for detecting whether the oil mass in the oil cup 30 reaches the preset cleaning condition, when the oil cup detection device 20 detects that the oil mass reaches the preset cleaning condition, the controller sends out an oil cup cleaning prompt to a user according to the detection result of the oil cup detection device 20, the oil cup cleaning prompt can be displayed in a display device in the form of text display, prompt lamp flashing or alarm sound alarm lamp, and the embodiment does not limit the embodiment mode of the oil cup cleaning prompt.

Namely, in this embodiment, the automatic detection of the oil amount in the oil cup 30 can be realized through the oil cup detection device 20, so that the user can be prompted to clean or replace the oil cup 30 more conveniently, the problem that the oil cup 30 is not cleaned timely due to forgetting or other reasons of the user is avoided, and the use reliability and the use experience of the range hood are improved.

In the present embodiment, the oil cup detection device 20 may be a visual detection device to determine the amount of oil in the oil cup 30 by visual detection. In other embodiments, the oil cup detecting device 20 may be a liquid level detecting device to detect whether the oil in the oil cup 30 reaches a preset liquid level, or a weight detecting device or a pressure detecting device disposed below the oil cup 30 to detect whether the total weight of the oil cup 30 reaches a preset weight.

That is, the existing arrangement that can be used to realize the detection of the oil amount in the oil cup 30 can be applied to this embodiment, and this embodiment does not limit the specific detection means of the oil amount in the oil cup 30.

Examples ten

The present embodiment provides a smoke collecting mechanism 100 and a range hood, and the structures of the smoke collecting mechanism 100 and the range hood provided in the present embodiment are basically the same as those of the ninth embodiment, only a part of the arrangements are different, and the present embodiment does not describe the same contents as the ninth embodiment.

As shown in fig. 28, in the present embodiment, the oil cup 30 is a disposable oil cup, and a plurality of rear communication ports 1122 are provided on the smoke inlet plate 112 at intervals in the left-right direction, and the rear communication ports 1122 are located above the oil cup 30. The oil cup detection device 20 is a visual detection device, and is mounted on the lower side of the smoke inlet plate 112 and located between two adjacent rear communication ports 1122.

Since the oil cup 30 is a disposable oil cup, when oil drops fall down from the rear communication port 1122 to the oil cup 30, the oil cup 30 starts to accumulate waste oil at a position facing the rear communication port 1122, and when the oil amount increases, the waste oil spreads out from the accumulation position to other positions. Since the positions of the oil cups 30 where the oil is adsorbed are different from the positions where the oil is not adsorbed, the visual inspection device judges whether the oil is attached and the area size of the attached oil at the inspection area 210 directly below the visual inspection device through color recognition. When the visual inspection device judges that the oil smoke area attached to the inspection area 210 exceeds the preset area, the oil cup 30 is judged to need to be replaced.

In this embodiment, the preset area is compared and judged based on the area of the detection area 210 of the visual detection device, and when the preset area/the area of the detection area 210 is greater than or equal to the preset ratio, it is judged that the oil cup 30 needs to be replaced. The preset ratio may be 85% -1. The magnitude of the preset ratio can be specifically set according to the oil absorption rate of the material of the oil cup 30.

Preferably, the visual inspection device is located at the middle of the two rear communication ports 1122, and the corresponding inspection area 210 is located directly below the visual inspection device, thereby enabling the reliability of the inspection result to be improved.

The oil cup detection device 20 is preferably arranged between two adjacent rear communication ports 1122 so as to improve the detection accuracy. In the present embodiment, three rear communication ports 1122 are provided at intervals, and the distance between the middle rear communication port 1122 and the rear communication ports 1122 on both sides is the same, and two oil cup detection devices 20 are provided. In other embodiments, the number of rear communication ports 1122 and the number of oil cup detection devices 20 may be set as desired.

Example eleven

As shown in fig. 29, the present embodiment provides a smoke collecting mechanism 100 and a range hood, and the smoke collecting mechanism 100 and the range hood provided in the present embodiment are based on further improvements of the structures in any of the foregoing embodiments, and the present embodiment will not be repeated for the same contents as those in the foregoing embodiments.

Because in the flue gas pumping and exhausting process, flue gas can collide the leading flank of lower deep bead 4, when lower deep bead 4 is the panel beating face, because panel beating coefficient of heat conductivity is higher, the oil smoke bumps down and condenses easily and produce and hang the stream after striking down deep bead 4, causes the oil droplet to adhere to down deep bead 4, even drips on the top of a kitchen range mesa, influences the outward appearance and causes clean difficulty.

To solve the technical problem, in this embodiment, the lower wind guard 4 at least includes the lower plaque that forms its leading flank, the thermal conductivity of lower plaque is lower than the thermal conductivity of collection petticoat pipe 1, from this make collection petticoat pipe 1 can be made by the panel beating, and the setting of lower plaque can reduce the thermal conductivity of lower wind guard 4 front side, reduce the probability of condensation behind flue gas and the contact of lower wind guard 4 front side, guarantee that the flue gas can be absorbed by pumping mechanism 200 before being condensed into the oil droplet, reduce the probability of oil stain adhesion in lower wind guard 4 front side, improve the convenience of lower wind guard 4 clearance, help reducing the clearance number of times on range hood surface, reduce the probability that the oil droplet drips on the mesa, improve kitchen's health condition.

In this embodiment, the lower decoration plate is preferably made of glass, and has low thermal conductivity, attractive appearance and strong please. In other embodiments, the lower decorative plate may be made of a material with low thermal conductivity, such as rubber or silica gel.

In this embodiment, the lower windscreen 4 further comprises a lining plate arranged inside the lower trim panel, preferably made of sheet metal material, which is advantageous for improving the connection convenience of the lower windscreen 4 with the smoke collecting hood 1 or the lower plate driving part 5. The inner lining plate is preferably adhered in the lower decorative plate, so that a hole and a groove structure are avoided being formed in the lower decorative plate.

It should be noted that, when the lower ornamental plate is fixedly disposed with respect to the fume collecting hood 1, the inner lining plate may be integrally formed with the lower housing 12, so as to reduce the convenience in processing the lower windshield 4. When the lower wind shield 4 is movably connected with the fume collecting hood 1, the inner decorative plate is connected with the lower plate driving piece 5.

Further, the front side of the oil cup 30 is covered with the anti-condensation plate 40, and the heat conductivity coefficient of the anti-condensation plate 40 is higher than that of the oil cup 30, so that the probability of condensation of oil smoke on the front side of the oil cup 30 can be reduced, the probability of adhesion of oil stains on the front side of the oil cup 30 is reduced, oil drops are further prevented from dripping on a table top, and the cleaning convenience and the use comfort of the smoke gathering mechanism 100 and the range hood are improved. The condensation preventing plate 40 is preferably made of glass material to improve the aesthetic appearance and cleaning convenience of the smoke gathering mechanism 100 and the range hood.

Example twelve

As shown in fig. 30, this embodiment provides a smoke collecting mechanism 100 and a range hood, where the smoke collecting mechanism 100 provided in this embodiment is substantially the same as that in embodiment eleven, and only part of the settings are different, and the embodiment will not be repeated for the same contents as embodiment eleven.

In this embodiment, the heating device 8 is disposed inside the lower casing 12, and the heating device 8 is located at the rear side of the lower wind guard 4 and is used for heating the lower wind guard 4, so as to prevent the oil smoke from condensing at the lower wind guard 4, and effectively avoid the oil smoke from condensing at the front side of the lower wind guard 4 and adhering to the lower wind guard 4; simultaneously, heating device 8 heats lower deep bead 4 for the front side of lower deep bead 4 is formed with thermal field, and thermal field impels the oil smoke to change flow direction, and upper forward flows, and increases the speed that the air current flows, thereby has improved the effect of oil smoke evacuation, improves the oil absorption effect.

In the present embodiment, the lower windshield 4 may be made of sheet metal, or may be provided as a two-layer structure in the eleventh embodiment.

The heating device 8 comprises an electric heating wire which is arranged on the back surface of the lower wind shield 4 so as to reduce the occupied space of the heating device 8 while ensuring the heating effect. The electric heating wires can be arranged in a plurality of left and right directions, or in an up and down direction, or in a serpentine shape on the back surface of the lower wind deflector 4, and the specific arrangement mode of the electric heating wires is not limited in this embodiment.

The heating device 8 may also be any other device capable of realizing electric heating, and the specific type and structure of the heating device 8 in this embodiment are not limited.

Example thirteen

As shown in fig. 31, the present embodiment provides a smoke collecting mechanism 100 and a range hood, and the smoke collecting mechanism 100 and the range hood provided in the present embodiment are improved based on any one of the above embodiments, and the present embodiment does not repeat the description of the same structure as the above embodiments.

In this embodiment, the inner air inlet 119 includes a front air inlet 1191 and a rear air inlet 1192, the rear air inlet 1192 is located at the rear side of the front air inlet 1191, the front air inlet 1191 is opposite to the outer air inlet 1121, and the air inlet is detachably provided with a filter screen 6.

Because the rear end of the smoke gathering cavity 1151 is located at the back side of the lower wind guard 4, the air inlet 119 is relatively larger than the air inlet 1121, and the air inlet 119 is relatively smaller than the air inlet 119, so that the oil smoke is easier to adhere to the front side of the inner air inlet 119. The inner air inlet 119 is arranged to be the front air inlet 1191 and the rear air inlet 1192, so that the air inlet at the front air inlet 1191 is larger than the air inlet at the rear air inlet 1192, and the filter screen 6 is arranged at the front air inlet 1191, so that the total air inlet area of the inner air inlet 119 can be increased while the filtering of the oil smoke is realized, the size of the filter screen 6 is reduced, and the convenience in disassembly, assembly and replacement of the filter screen 6 is ensured while the oil smoke pumping effect is improved; because the air intake of the rear air inlet 1192 is smaller, the filter screen 6 does not need to be arranged at the rear air inlet 1192, and the cost and the weight of the smoke gathering mechanism 100 are reduced.

In this embodiment, filter screen 6 can be through outer air intake 1121 dismouting, can effectively improve filter screen 6's dismouting convenience from this for when needs dismouting filter screen 6, can overturn preceding smoke baffle 21 to the open condition and can realize the dismantlement to filter screen 6, improve filter screen 6's dismantlement and clearance convenience.

Further, the rear air inlet 1192 is a long strip opening, the ventilation area of the single rear air inlet 1192 is smaller than the single mesh area of the filter screen 6, and ventilation resistance is reduced. And the rear air inlets 1192 are arranged at intervals along the left-right direction, so that the single area of the rear air inlets 1192 is reduced while the air inlet quantity of the rear air inlets 1192 is ensured, and the structure between two adjacent rear air inlets 1192 forms a structure for condensing and filtering oil smoke, thereby being more beneficial to waste oil recovery.

It should be noted that the structural arrangement of the inner air inlet 119 provided in this embodiment may be applied to any of the above embodiments.

Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims

1. A smoke gathering mechanism, comprising:

the smoke collecting cover (1) is provided with a smoke collecting cavity (116) and a smoke inlet plate (112) forming the lower bottom of the smoke collecting cavity (116), the smoke inlet plate (112) is provided with a smoke collecting cavity (1151) concavely arranged upwards, and the cavity wall of the smoke collecting cavity (1151) is provided with an inner air inlet (119) communicated with the smoke collecting cavity (116);

the lower wind shield (4) is arranged at the front side of the lower part of the fume collecting hood (1), the front end and the rear end of the fume collecting cavity (1151) are respectively positioned at the front side and the rear side of the lower wind shield (4), and an outer air inlet (1121) is formed between the upper end of the lower wind shield (4) and the front end of the fume collecting cavity (1151);

the front smoke baffle plate (21) is rotationally connected to the smoke collecting hood (1) and can selectively open or close the outer air inlet (1121), and when the front smoke baffle plate (21) closes the outer air inlet (1121), the front smoke baffle plate (21) and the lower wind baffle plate (4) are arranged at a preset obtuse angle.

2. The smoke gathering mechanism as recited in claim 1, wherein the smoke collecting hood (1) comprises an upper housing (11) and a lower housing (12), the smoke inlet plate (112) forms the bottom of the upper housing (11), the lower housing (12) is connected to the bottom rear side of the upper housing (11), and the lower wind deflector (4) is mounted to the front side of the lower housing (12).

3. The smoke-gathering mechanism as recited in claim 2, wherein said upper housing (11) and said lower housing (12) are welded or detachably connected.

4. The smoke gathering mechanism as recited in claim 2, wherein side guards (13) are provided on both the left and right sides of the upper housing (11), the side guards (13) covering corresponding sides of the upper housing (11) and the lower housing (12).

5. The smoke gathering mechanism as recited in claim 4, wherein when said front smoke baffle (21) closes said outer air intake (1121), the orthographic projections of said upper housing (11), said lower housing (12) and said lower wind baffle (4) on said side baffle (13) are located inside said side baffle (13);

and/or, the lower wind deflector (4) has a first included angle relative to the vertical plane, the front side edge of the side baffle (13) has a second included angle relative to the vertical plane, and the first included angle is smaller than the second included angle.

6. The smoke gathering mechanism as recited in claim 1, wherein the smoke collecting cover (1) comprises an oil collecting cavity (124) positioned at the lower side of the smoke inlet plate (112), the lower wind shield (4) forms a front side cavity wall of the oil collecting cavity (124), the rear end of the smoke gathering cavity (1151) is communicated with the oil collecting cavity (124), the smoke inlet plate (112) is provided with a rear communication port (1122), and the rear communication port (1122) is positioned at the rear side of the smoke gathering cavity (1151) and is communicated with the oil collecting cavity (124) and the smoke collecting cavity (116);

And/or the rear side cavity wall of the smoke gathering cavity (1151) is provided with an oil leakage port (1152).

7. The smoke gathering mechanism according to any one of claims 1-6, wherein two smoke gathering cavities (1151) are arranged at intervals along the left-right direction, and the outer air inlets (1121) are arranged in one-to-one correspondence with the smoke gathering cavities (1151);

and/or the ventilation area of the outer air inlet (1121) is smaller than the ventilation area of the inner air inlet (1151).

8. The smoke gathering mechanism as recited in any one of claims 1-6, wherein the smoke collecting hood (1) has an oil collecting cavity (124) located at the lower side of the smoke inlet plate (112), the lower wind deflector (4) forms a front side cavity wall of the oil collecting cavity (124), the oil collecting cavity (124) is communicated with the smoke collecting cavity (116);

the upper end of the lower wind shield (4) is rotationally connected with the fume collecting hood (1) so as to form a side air inlet (43) which can be selectively opened or closed between the fume inlet plate (112) and the upper end of the lower wind shield (4); or, the lower end of the lower wind shield (4) is rotationally connected with the fume collecting hood (1), so that a side air inlet (43) which can be selectively opened or closed is formed between the lower end of the lower wind shield (4) and the lower end of the fume collecting hood (1).

9. The smoke gathering mechanism as recited in any one of claims 1-6, wherein the lower wind deflector (4) comprises a fixed baffle (41) and a movable baffle (42), a side air inlet (43) is provided on the fixed baffle (41), and the movable baffle (42) is movably connected with the fixed baffle (41) to selectively open or close the side air inlet (43).

10. The smoke-gathering mechanism as recited in claim 9, further comprising a lower plate drive (5), wherein the lower plate drive (5) drives the flapper (42) in a direction toward or away from the fixed flapper (41) to open or close the side air intake (43).

11. The smoke gathering mechanism as recited in any one of claims 1-6, wherein the smoke collecting hood (1) has a mounting space inside at a lower end for mounting an oil cup (30), the mounting space has a front side opening for the oil cup (30) to go in and out, and the lower wind deflector (4) is capable of selectively opening or closing the front side opening.

12. The smoke gathering mechanism as recited in claim 11, wherein the upper end of the lower wind deflector (4) is rotatably connected to the smoke collecting hood (1) so that the lower end of the lower wind deflector (4) can be turned forward to open the front side opening;

Or, the lower wind deflector (4) comprises an upper plate part and a lower plate part, the upper end of the upper plate part is in butt joint with the smoke inlet plate (112), the front side opening is formed between the lower end of the upper plate part and the lower end of the smoke collecting cover (1), and the lower plate part is in sliding connection with the upper plate part so as to open or close the front side opening.

13. The smoke gathering mechanism as recited in any of claims 1-6, wherein said inner air intake (119) comprises a front air intake (1191) and a rear air intake (1192), said rear air intake (1192) is located at a rear side of said front air intake (1191), said front air intake (1191) is disposed opposite said outer air intake (1121), and said rear air intake (1192) is disposed opposite and spaced from said lower air deflector (4).

14. The smoke gathering mechanism as recited in claim 13, wherein a filter screen (6) is detachably disposed at the front air inlet (1191), and wherein the filter screen (6) is detachable through the outer air inlet (1121);

and/or, a plurality of rear air inlets (1192) are arranged at intervals along the left-right direction.

15. The smoke gathering mechanism as recited in any one of claims 1 to 6, wherein the top wall of the smoke gathering chamber (1151) is provided with the inner air inlet (119), a filter screen (6) and oil blocking parts (7) are arranged at the inner air inlet (119), two oil blocking parts (7) are arranged at intervals along the left-right direction, and the two oil blocking parts (7) are respectively used for receiving oil drops dripping from the left side wall and the right side wall of the bellows (201).

16. The smoke gathering mechanism as recited in claim 15, wherein the oil blocking member (7) comprises an oil blocking bottom plate (71) and a silencing member (72), the oil blocking bottom plate (71) is connected with the filter screen (6) or the smoke collecting hood (1), a plurality of noise reduction holes (711) are formed in the oil blocking bottom plate (71), and the silencing member (72) is mounted on the inner side of the oil blocking bottom plate (71).

17. The smoke-gathering mechanism as recited in any one of claims 1 to 6, further comprising a front plate drive mechanism (3), wherein the front plate drive mechanism (3) is capable of driving the front smoke baffle (21) to rotate to open or close the outer air intake (1121), and wherein the front plate drive mechanism (3) is capable of driving the rotational connection end of the front smoke baffle (21) to move back and forth.

18. The smoke gathering mechanism as recited in claim 17, wherein the front plate drive mechanism (3) comprises:

the sliding seat (31) can be arranged in the fume collecting hood (1) in a front-back sliding way along the fume inlet plate (112), and the rotating connecting end is rotatably arranged on the sliding seat (31);

and the plate driving assembly is used for driving the front smoke baffle plate (21) to rotate relative to the sliding seat (31) and driving the sliding seat (31) to slide relative to the smoke inlet plate (112).

19. The smoke gathering mechanism as recited in any of claims 1-6, characterized in that the smoke gathering mechanism comprises a front plate driving mechanism (3), the front smoke baffle (21) comprises a first turning plate (211) and a second turning plate (212), two ends of the first turning plate (211) are respectively hinged with the smoke collecting hood (1) and the second turning plate (212), and the front plate driving mechanism (3) is connected with the second turning plate (212) to drive the front smoke baffle (21) to open or close the outer air inlet (1121).

20. The smoke gathering mechanism as recited in any one of claims 1 to 6, wherein the lower windscreen (4) has a lower fascia forming a front side thereof, the lower fascia having a thermal conductivity lower than that of the smoke collecting hood (1);

and/or, the inner side of the lower wind shield (4) is provided with a heating device (8);

and/or, the fume gathering mechanism comprises an oil cup (30) arranged at the bottom of the fume collecting hood (1), a condensation preventing plate (40) is arranged on the front side surface of the oil cup (30), and the heat conductivity coefficient of the condensation preventing plate (40) is lower than that of the oil cup (30).

21. A range hood comprising a smoke gathering mechanism as claimed in any one of claims 1 to 20.