CN216744512U

CN216744512U - Smoke collecting device and range hood

Info

Publication number: CN216744512U
Application number: CN202123304341.2U
Authority: CN
Inventors: 任富佳; 陈飞; 肖遥; 吕春明; 余国成
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-06-14
Anticipated expiration: 2031-12-24

Abstract

The utility model provides a smoke collection device and a range hood, relating to the technical field of kitchen appliances, wherein the smoke collection device comprises: the device comprises a smoke collecting hood, a smoke collecting assembly, a first driving mechanism and a cleaning assembly, wherein the smoke collecting assembly is hinged with the smoke collecting hood, and the first driving mechanism is respectively connected with the smoke collecting hood and the smoke collecting assembly; the first driving mechanism is used for driving the smoke collecting component to move towards the inner side or the outer side of a smoke suction port of the smoke collecting cover, and the cleaning component is connected inside the smoke collecting cover; the cigarette gathering component comprises a bottom screen plate; the cleaning component is provided with a brushing surface, the brushing surface is positioned on the motion path of the bottom screen plate, and the brushing surface can be contacted with the bottom screen plate. When the cigarette gathering assembly moves, the bottom screen plate can be in contact with the brushing surface and brush off oil stains on the bottom screen plate, so that the purpose of cleaning the bottom screen plate is achieved, meshes on the bottom screen plate are not easy to block, the frequency of disassembling and cleaning is reduced, and manpower is saved.

Description

Smoke collecting device and range hood

Technical Field

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

Background

A smoke suction port is formed in a smoke collecting cover of the range hood, a smoke collecting assembly hinged with the smoke collecting cover is arranged at the smoke suction port, a push-pull mechanism is connected between the smoke collecting assembly and the smoke collecting cover, and the smoke suction port can be opened and closed through the push-pull mechanism.

The cigarette collecting component is easily polluted by oil stains, and the cleaning of the cigarette collecting component is time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a smoke collecting device and a range hood so as to solve the technical problem that a smoke collecting component in the existing range hood is time-consuming and labor-consuming in cleaning.

In a first aspect, an embodiment of the present invention provides an smoke collecting device, including: the device comprises a smoke collecting hood, a smoke collecting assembly, a first driving mechanism and a cleaning assembly, wherein the smoke collecting assembly is hinged with the smoke collecting hood, and the first driving mechanism is respectively connected with the smoke collecting hood and the smoke collecting assembly; the first driving mechanism is used for driving the smoke collecting component to move towards the inner side or the outer side of a smoke suction port of the smoke collecting cover, and the cleaning component is connected inside the smoke collecting cover;

the cigarette gathering component comprises a bottom screen plate; the cleaning assembly is provided with a brushing surface, the brushing surface is positioned on the motion path of the bottom screen plate, and the brushing surface can be in contact with the bottom screen plate.

Further, the cleaning assembly comprises a rolling brush, and the circumferential side wall of the rolling brush is in rolling contact with the bottom screen plate.

Further, the cleaning assembly comprises a driving module, and the driving module is connected with the rolling brush and used for driving the rolling brush to rotate around the axis of the rolling brush.

Furthermore, the smoke collecting device further comprises a linkage assembly, the linkage assembly is respectively connected with the bottom screen plate and the rolling brush, the linkage assembly is used for driving the smoke collecting assembly to move through the rotating rolling brush, and the driving module and the linkage assembly form the first driving mechanism.

Further, the linkage assembly comprises a first engaging structure arranged on the rolling brush and a second engaging structure arranged on the bottom mesh plate.

Furthermore, the first meshing structure comprises a plurality of teeth arranged on the rolling brush at intervals along the rolling direction of the rolling brush, the second meshing structure comprises a plurality of limiting holes arranged on the bottom screen plate at intervals along the moving direction of the bottom screen plate; the plurality of teeth are engaged with the limiting hole.

Furthermore, the smoke collecting cover is provided with two smoke sucking ports, and each smoke sucking port is correspondingly hinged with a smoke collecting component;

the cigarette gathering component comprises: the cigarette holder comprises a backboard, a first side plate and a second side plate, wherein the first side plate and the second side plate are arranged at two opposite ends of the backboard at intervals, the front edges of the first side plate and the second side plate are respectively connected with the back face of the backboard, a bottom net plate is arranged between the first side plate and the second side plate, and the backboard, the first side plate, the second side plate and the bottom net plate are enclosed to form a cigarette collecting cavity.

Further, the side plates, close to each other, on the two cigarette collecting assemblies are first side plates; the first side plate is provided with a plurality of first through holes penetrating through two opposite side faces of the first side plate.

Further, the fume collecting device includes a cleaning member, and the cleaning member includes: the main body is connected with the smoke collecting hood;

the main part is provided with an oil scraping structure used for being abutted against a first side plate face of the smoke collecting component, and the oil scraping structure is used for scraping oil stains on the first side plate face of the smoke collecting cover relative to the smoke collecting cover.

Further, the main part is connected the inboard of collection petticoat pipe, the structure of scraping oil is provided with first oil guide face on one side of collection petticoat pipe front panel, certainly the structure of scraping oil is towards the direction of collection petticoat pipe front panel, first oil guide face inclines towards keeping away from first curb plate direction.

Further, the main part is connected the inboard of collection petticoat pipe, the frizing structure is provided with the second and leads the oil level on one side of collection petticoat pipe front panel dorsad, certainly the front panel of collection petticoat pipe is towards the direction of frizing structure, the second leads the oil level to keeping away from first curb plate direction slope.

In a second aspect, the range hood provided by the embodiment of the utility model comprises the smoke collecting device.

The smoke collecting device provided by the embodiment of the utility model comprises: the device comprises a smoke collecting hood, a smoke collecting assembly, a first driving mechanism and a cleaning assembly, wherein the smoke collecting assembly is hinged with the smoke collecting hood, and the first driving mechanism is respectively connected with the smoke collecting hood and the smoke collecting assembly; the first driving mechanism is used for driving the smoke collecting component to move towards the inner side or the outer side of a smoke suction port of the smoke collecting cover, and the cleaning component is connected inside the smoke collecting cover; the cigarette gathering component comprises a bottom screen plate; the cleaning assembly is provided with a brushing surface, the brushing surface is positioned on the motion path of the bottom screen plate, and the brushing surface can be in contact with the bottom screen plate. When the smoke collecting component works, the bottom screen plate faces to a stove, oil smoke rising upwards passes through the bottom screen plate and enters the smoke collecting hood, and the bottom screen plate has the function of filtering the oil smoke, so that oil stains can be hung on the bottom screen plate. When the cigarette gathering assembly moves, the bottom screen plate can be in contact with the brushing surface and brush off oil stains on the bottom screen plate, so that the purpose of cleaning the bottom screen plate is achieved, meshes on the bottom screen plate are not easy to block, the frequency of disassembling and cleaning is reduced, and manpower is saved.

The range hood provided by the embodiment of the utility model comprises the smoke collecting device. Because the range hood provided by the embodiment of the utility model adopts the smoke collecting device, the range hood provided by the embodiment of the utility model also has the advantages of the smoke collecting device.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic view of a range hood provided by an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a range hood provided by an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at position A;

FIG. 4 is a schematic view of a smoke gathering assembly in a smoke gathering device provided by an embodiment of the utility model;

fig. 5 is a schematic view of an internal structure of another range hood provided by the embodiment of the present invention;

FIG. 6 is a partial enlarged view of the position B in FIG. 5;

FIG. 7 is a cross-sectional view of the cleaning member of FIG. 5 in a position;

figure 8 is a schematic view of the cleaning member of figure 5.

Icon: 100-a smoke collecting hood;

200-a cigarette gathering component; 210-a bottom mesh plate; 220-a first side panel; 230-a second side plate; 240-back plate

310-rolling brush; 320-a motor;

410-teeth; 420-a limiting hole;

500-oil cup;

600-a cleaning member; 610-oil scraping structure; 611-a first oil guide surface; 612-second oil guide surface; 613-arc shaped structures.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 3, the smoke collecting device provided by the embodiment of the present invention includes: the fume collecting hood 100, the fume collecting assembly 200, the first driving mechanism and the cleaning assembly are arranged, the fume collecting assembly 200 is hinged to a fume suction port of the fume collecting hood 100, and the fume suction port can be arranged on a front panel of the fume collecting hood 100. First actuating mechanism is connected with collection petticoat pipe 100 and collection cigarette subassembly 200 respectively, first actuating mechanism is used for driving it moves to the inboard or the outside of the mouth of smoking of collection petticoat pipe to hold together cigarette subassembly 200, clean subassembly is connected inside collection petticoat pipe 100. The smoke gathering assembly 200 comprises a bottom screen plate 210, when the smoke gathering assembly 200 is positioned at the outer side of the smoke suction port, the bottom screen plate 210 is positioned above the cooker, and when the smoke gathering assembly 200 is positioned at the inner side of the smoke suction port, the bottom screen plate 210 returns to the inside of the smoke collecting hood 100. The cleaning assembly has a brush surface on a moving path of the bottom screen plate 210, and the brush surface can contact with the bottom screen plate 210. When the smoke collecting assembly 200 works, the bottom screen plate 210 faces the kitchen range, the rising oil smoke passes through the bottom screen plate 210 and enters the smoke collecting hood 100, and the bottom screen plate 210 has the function of filtering the oil smoke, so that oil stains can be hung on the bottom screen plate. When the cigarette gathering assembly 200 moves, the bottom screen plate 210 can contact with the brushing surface and brush off oil stains on the bottom screen plate 210, so that the purpose of cleaning the bottom screen plate 210 is achieved, meshes on the bottom screen plate 210 are not easy to block, the frequency of disassembling and cleaning is reduced, and manpower is saved.

The cleaning assembly may include a roller brush 310, and a circumferential sidewall of the roller brush 310 is in rolling contact with the floor screen 210.

The rolling brush 310 may extend along the width direction of the smoke collecting hood 100, and may be provided with a mounting seat on the inner wall of the smoke collecting hood 100, and two ends of the rolling brush are respectively connected with the two mounting seats in a rotating manner, for example, shaft holes are provided at two ends of the rolling brush 310, and a rotating shaft inserted into the shaft holes is provided on the mounting seat, so as to realize that the rolling brush 310 rolls relative to the smoke collecting hood 100. The moving direction of the bottom screen plate 210 can be tangent to the circumferential side wall of the rolling brush 310, the circumferential side wall of the rolling brush 310 can contact with the bottom surface of the bottom screen plate 210, friction exists between the bottom screen plate and the rolling brush 310, and the moving bottom screen plate 210 can drive the rolling brush 310 to rotate, so that the circumferential side wall of the rolling brush 310 is in contact with the bottom screen plate 210, and oil stains are sufficiently cleaned.

The cleaning assembly includes a driving module connected to the rolling brush 310 for driving the rolling brush 310 to rotate around its axis.

As shown in fig. 3, the driving module may drive the rolling brush to actively rotate, for example, the driving module includes a motor 320, a driving shaft of the motor 320 is connected to the rolling brush 310, and the motor 320 drives the rolling brush 310 to rotate and contact with the moving floor screen 210, so as to achieve a better cleaning effect. Specifically, the rotation direction of the roller brush may be set to be opposite to the movement direction of the base screen plate 210, so as to improve the friction force therebetween and achieve a better cleaning effect.

The smoke collecting device further comprises a linkage assembly, the linkage assembly is respectively connected with the bottom screen plate 210 and the rolling brush 310, the linkage assembly is used for driving the smoke collecting assembly 200 to move through the rotating rolling brush 310, and the driving module and the linkage assembly form the first driving mechanism.

The driving module simultaneously drives the rolling brush 310 to rotate and the smoke gathering assembly 200 to move, so that two driving pieces are avoided, the cost is saved, and the excessive space in the smoke collecting hood 100 is avoided being occupied.

The linkage assembly includes a first engagement structure provided on the roller brush 310 and a second engagement structure provided on the base mesh plate 210.

The rotating roller brush 310 can drive the first engaging structure to rotate, because the first engaging structure is engaged with the second engaging structure, the power can be transmitted to the bottom mesh plate 210, so as to drive the whole cigarette collecting assembly 200 to move. The first engagement structure may include a plurality of teeth 410, the plurality of teeth 410 being surrounded on the circumferential side wall of the drum brush 310, and the second engagement structure may be a tooth groove provided on the base mesh plate 210 to be engaged with the teeth 410 and arranged linearly. In this embodiment, the tooth slot may be formed by a plurality of limiting holes 420, and the plurality of limiting holes 420 are arranged at intervals along the moving direction of the bottom mesh plate 210; a plurality of the teeth 410 are engaged with the stopper hole 420. The limiting holes 420 may form a member for driving the cigarette gathering assembly 200 to move on the one hand, and on the other hand, the limiting holes 420 may serve as filtering holes on the bottom screen plate 210.

As shown in fig. 4, the smoke collecting hood 100 may have two smoke absorbing openings, and each smoke absorbing opening is hinged with a smoke collecting assembly 200. The cigarette gathering assembly 200 further comprises a back plate 240, a first side plate 220 and a second side plate 230, the first side plate 220 and the second side plate 230 are arranged at two opposite ends of the back plate 240 at intervals, namely, the first side plate 220 and the second side plate 230 can be arranged at the left end and the right end of the back plate 240 respectively, the front edges of the first side plate 220 and the second side plate 230 are connected with the back face of the back plate 240 respectively, the bottom screen plate 210 is connected to the rear side of the back plate 240, the left edge and the right edge of the bottom screen plate 210 are connected with the first side plate 220 and the second side plate 230 respectively, the first side plate 220 and the second side plate 230 can be perpendicular to the back plate 240, the first side plate 220, the second side plate 230 and the bottom screen plate 210 enclose a cigarette gathering cavity, and when the cigarette gathering assembly 200 is swung out from a cigarette smoking port, the back plate 240, the first side plate 220, the second side plate 230 and the bottom screen plate 210 are all located outside the cigarette smoking port. Two curb plates that hold together cigarette subassembly 200 and go up close to each other are first curb plate 220, be provided with a plurality of first through-holes that run through its relative both sides face on the first curb plate 220. On the range hood provided with the double smoke suction ports of the smoke gathering assembly 200, the first side plates 220 on the two smoke gathering assemblies 200 are positioned on the inner sides, and the second side plates 230 play roles of gathering smoke and guiding flow, so that the oil smoke on the outer sides is guided into the smoke gathering cavity, and the oil smoke is prevented from overflowing to the outer sides of the range hood; and first curb plate 220 not only plays the effect of holding together cigarette and water conservancy diversion, still plays filterable effect, and when leaning on the inboard oil smoke that rises to transversely enter into to hold together the cigarette chamber, behind first through-hole, partial greasy dirt is attached to on first curb plate 220, can improve the filter effect of greasy dirt.

When two cigarette gathering assemblies 200 are provided, the number of the rolling brush 310, the number of the driving module and the number of the linkage assemblies are two, so that the two cigarette gathering assemblies 200 can operate independently.

As shown in fig. 5 to 8, the smoke collecting device includes a cleaning member 600, and the cleaning member 600 includes: a main body connected with the fume collecting hood 100; the main body is provided with an oil scraping structure 610 which is used for abutting against the first side plate 220 of the smoke collecting cover 200, and the oil scraping structure 610 is used for scraping oil stains on the first side plate 220 when the smoke collecting cover 100 moves relative to the smoke collecting cover 200.

The cleaning member 600 has a certain elasticity, and the oil scraping structure 610 is pressed on the first side plate 220. The oil scraping structure 610 is in contact with the first side plate 220, and when the cigarette gathering assembly 200 is closed, the oil scraping structure 610 performs one oil scraping action on the outer surface of the first side plate 220; when gathering together cigarette subassembly 200 and opening, frizing structure 610 carries out once more frizing action with first curb plate 220, consequently, uses a product when the user, will carry out twice cleanness, and the difficult jam of mesh on the first curb plate 220 has reduced and has dismantled abluent frequency.

The main part is connected the inboard of collection petticoat pipe 100, oil scraping structure 610 is provided with first oil guide surface 611 on one side towards collection petticoat pipe 100 front panel, certainly oil scraping structure 610 is towards the direction of collection petticoat pipe 100 front panel, first oil guide surface 611 inclines to keeping away from first curb plate 220 direction.

As shown in fig. 7 and 8, when the smoke collecting assembly 200 moves towards the inside of the smoke collecting hood 100 under the driving of the driving mechanism, the oil scraping structure 610 scrapes off oil, and the scraped oil is located between the front panel of the smoke collecting hood 100 and the oil scraping structure 610, and the scraped oil flows to the inside of the front panel of the smoke collecting hood 100 along the first guiding surface in the direction away from the smoke suction port under the guiding of the first oil guiding surface 611, so as to prevent the oil from flowing out of the smoke suction port.

The main part is connected collection petticoat pipe 100's inboard, oil scraping structure 610 is provided with second oil guide surface 612 on one side of collection petticoat pipe 100 front panel dorsad, certainly collection petticoat pipe 100's front panel is towards oil scraping structure 610's direction, second oil guide surface 612 inclines to keeping away from first curb plate 220 direction.

As shown in fig. 7 and 8, when the smoke collecting assembly 200 is driven by the driving mechanism to move towards the outside of the smoke collecting hood 100, the oil scraping structure 610 scrapes off oil, and the scraped oil is located at one side of the oil scraping structure 610 away from the front panel of the smoke collecting hood 100, and the scraped oil flows to the inside of the front panel of the smoke collecting hood 100 along the second oil guiding surface 612 in the direction away from the smoke suction opening under the guidance of the second oil guiding surface 612, so as to prevent the oil from flowing out from the smoke suction opening.

The oil scraping structure 610 includes an arc-shaped structure 613 formed by bending a plate, and an outer side wall of the arc-shaped structure 613 is used for abutting against the first side plate 220.

As shown in fig. 8, the cleaning member 600 may be formed by bending or bending a plate, wherein the oil scraping structure 610 is formed by bending, wherein the first oil guiding surface 611 and the second oil guiding surface 612 are formed by bending, and the first oil guiding surface 611 and the second oil guiding surface 612 are respectively located at two sides of the arc-shaped structure and are respectively connected with two opposite sides of the arc-shaped structure.

A first oil guiding structure is arranged in the fume collecting hood 100, and the first oil guiding structure is located below the rolling brush 310 and used for guiding oil brushed down by the rolling brush 310 into the oil cup 500.

The first oil guiding structure may be an inner wall of a front panel of the fume collecting hood, the rolling brush 310 is located above the inner wall of the front panel of the fume collecting hood, the inner wall of the front panel may receive oil stains flowing down from the rolling brush 310, the oil cup 500 is located below a lowest edge of the inner wall of the front panel, and the oil stains on the inner wall of the front panel may flow into the oil cup 500.

A second oil guiding structure is arranged in the fume collecting hood 100, and the second oil guiding structure is located below the cleaning member 600 and used for guiding oil scraped by the oil scraping structure 610 into the oil cup 500. The oil groove that connects that the oily structure can be for being located between the smoking mouth is led to the second, and the cleaning member is installed in connecing the oil groove, and two cleaning members interval settings about connecing in the oil groove.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An extractor hood device, comprising: the device comprises a smoke collecting cover (100), a smoke collecting component (200), a first driving mechanism and a cleaning component, wherein the smoke collecting component (200) is hinged with the smoke collecting cover (100), and the first driving mechanism is respectively connected with the smoke collecting cover (100) and the smoke collecting component (200); the first driving mechanism is used for driving the smoke collecting component (200) to move towards the inner side or the outer side of a smoke suction port of the smoke collecting cover (100), and the cleaning component is connected inside the smoke collecting cover (100);

the cigarette gathering assembly (200) comprises a bottom mesh plate (210); the cleaning assembly is provided with a brush surface which is positioned on the motion path of the bottom screen plate (210), and the brush surface can be contacted with the bottom screen plate (210).

2. The fume collecting device according to claim 1, characterized in that said cleaning assembly comprises a rolling brush (310), a circumferential side wall of said rolling brush (310) being in rolling contact with said bottom mesh plate (210).

3. A fume collecting device according to claim 2, characterized in that said cleaning assembly comprises a driving module connected with said rolling brush (310) for driving said rolling brush (310) to rotate around its axis.

4. A smoke collecting device according to claim 3, further comprising a linkage assembly, said linkage assembly is connected with the bottom mesh plate (210) and the rolling brush (310), said linkage assembly is used for driving the smoke collecting assembly (200) to move through the rotating rolling brush (310), said driving module and linkage assembly form said first driving mechanism.

5. The fume extraction device according to claim 4, wherein said linkage assembly includes a first engagement structure provided on said roller brush (310) and a second engagement structure provided on a floor screen (210).

6. A smoke collecting device according to claim 5, wherein said first engaging structure comprises a plurality of teeth (410) arranged on said rolling brush (310), said plurality of teeth (410) being arranged at intervals along a rolling direction of said rolling brush (310), said second engaging structure comprises a plurality of position limiting holes (420) arranged on said bottom mesh plate (210), said plurality of position limiting holes (420) being arranged at intervals along a moving direction of said bottom mesh plate (210); the plurality of teeth (410) are engaged with the limiting hole (420).

7. A smoke collecting device according to any one of the claims 1-6, wherein said smoke collecting hood (100) is provided with two smoke sucking ports, each smoke sucking port is hinged with a smoke collecting component (200);

the cigarette gathering assembly (200) comprises: the cigarette box comprises a back plate (240), a first side plate (220) and a second side plate (230), wherein the first side plate (220) and the second side plate (230) are arranged at two opposite ends of the back plate (240) at intervals, the front edges of the first side plate (220) and the second side plate (230) are respectively connected with the back surface of the back plate (240), a bottom net plate (210) is located between the first side plate (220) and the second side plate (230), and the back plate (240), the first side plate (220), the second side plate (230) and the bottom net plate (210) enclose a cigarette gathering cavity.

8. A smoke collecting device according to claim 7, wherein the side plates close to each other on the two smoke collecting components (200) are first side plates (220); the first side plate (220) is provided with a plurality of first through holes penetrating through two opposite side faces of the first side plate.

9. The fume collecting device according to claim 8, characterized in that said fume collecting device comprises a cleaning member (600), said cleaning member (600) comprising: a main body connected with the fume collecting hood (100);

be provided with in the main part and be used for with hold together oil scraping structure (610) of first curb plate (220) face butt of cigarette subassembly (200), oil scraping structure (610) are used for hold together cigarette subassembly (200) for when collection petticoat pipe (100) move with greasy dirt on first curb plate (220) face is scraped off.

10. A fume collecting device according to claim 9, characterized in that said main body is connected inside said fume collecting hood (100), said oil scraping structure (610) is provided with a first oil guiding surface (611) on the side facing the front panel of said fume collecting hood (100), said first oil guiding surface (611) is inclined away from the first side plate (220) from the direction of said oil scraping structure (610) facing the front panel of said fume collecting hood (100).

11. A fume collecting device according to claim 9, characterized in that said main body is connected inside said fume collecting hood (100), and a second oil guiding surface (612) is provided on a side of said oil scraping structure (610) facing away from a front panel of said fume collecting hood (100), said second oil guiding surface (612) being inclined away from said first side plate (220) in a direction from said front panel of said fume collecting hood (100) toward said oil scraping structure (610).

12. A range hood, characterized by comprising the smoke collecting device of any one of claims 1 to 11.