CN213019793U - Smoke collecting hood assembly and range hood - Google Patents

Abstract

The utility model provides a collection petticoat pipe subassembly and lampblack absorber relates to kitchen utensil technical field. The fume collecting hood assembly comprises a fume collecting hood and a fume collecting frame; the smoke collecting frame is arranged in the smoke collecting hood and divides the inner space of the smoke collecting hood into a groove body and a cavity; a plurality of cigarette collecting grooves are formed in the cigarette collecting frame, and each cigarette collecting groove is sunken along the direction from the groove body to the cavity; each smoke collecting groove is provided with a smoke inlet which is used for communicating the smoke collecting groove with the cavity so as to form a smoke channel in the smoke collecting cover. The utility model discloses alleviate the smoke collecting plate of the current lampblack absorber's that exists among the prior art collection smoke chamber mid-mounting, can reduce the degree of depth in collection smoke chamber, when having a large amount of oil smoke, the technical problem that the oil smoke still escapes easily.

Description

Smoke collecting hood assembly and range hood

Technical Field

The utility model belongs to the technical field of the lampblack absorber technique and specifically relates to a collection petticoat pipe subassembly and lampblack absorber are related to.

Background

The lampblack absorber includes fan subassembly and collection petticoat pipe, and fan subassembly installation is in collection petticoat pipe top. The inner space of the smoke collecting cover is a smoke collecting cavity, and the fan assembly is used for forming negative pressure at the smoke collecting cavity, so that the oil smoke can penetrate through the smoke collecting cavity and then enter an air channel behind the smoke collecting cover.

The smoke inlet of the smoke collecting cover is usually positioned in the middle of the smoke collecting cavity, after the fan assembly is started, the negative pressure on the peripheral side of the smoke collecting cavity is lower than the negative pressure in the middle of the smoke collecting cavity, the gas flow rate is also lower, and therefore the oil smoke is easy to escape on the peripheral side of the smoke collecting cavity. In order to improve the negative pressure at the peripheral side of the smoke collection cavity and reduce the escape phenomenon of the oil smoke at the peripheral side of the smoke collection cavity, the middle part of the smoke collection cavity of the existing range hood is provided with a smoke collection plate with a certain thickness. The cigarette collecting plate is a trapezoid body, and the bottom surface of the cigarette collecting plate is positioned on a horizontal plane. The gap between the peripheral side of the smoke collecting plate and the peripheral side of the smoke collecting cover is a smoke inlet, and the smoke collecting plate occupies the space of the smoke collecting cavity and reduces the volume of the smoke collecting cavity, so that the smoke collecting plate can promote the negative pressure of the peripheral side of the smoke collecting cavity.

However, the smoke collecting plate arranged in the middle of the smoke collecting cavity of the existing range hood can reduce the depth of the smoke collecting cavity, and when a large amount of oil smoke exists, the oil smoke still easily escapes.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a collection petticoat pipe subassembly and lampblack absorber to alleviate the collection smoke chamber mid-mounting of the current lampblack absorber that exists among the prior art and hold together the cigarette board, can reduce the degree of depth in collection smoke chamber, when having a large amount of oil smoke, the technical problem that the oil smoke still escapes easily.

The utility model provides a smoke collecting cover component which comprises a smoke collecting cover and a smoke collecting frame;

the smoke collecting frame is arranged inside the smoke collecting hood and divides the internal space of the smoke collecting hood into a groove body and a cavity;

a plurality of cigarette collecting grooves are formed in the cigarette collecting frame, and each cigarette collecting groove is sunken along the direction from the groove body to the cavity;

each smoke gathering groove is provided with a smoke inlet, and the smoke inlets are used for communicating the smoke gathering grooves with the cavity so as to form a smoke channel in the smoke gathering cover.

Further, the smoke collecting cover assembly further comprises a plurality of annular smoke guide plates, and the smoke guide plates are arranged in the smoke collecting grooves in a one-to-one correspondence mode.

Further, the smoke guide plate comprises a first end and a second end, the first end and the second end of the smoke guide plate are located in the depth direction of the smoke collecting groove in sequence from the groove opening to the groove bottom of the smoke collecting groove, and the opening at the second end of the smoke guide plate is communicated with the smoke inlet.

Further, from the first end to the second end of the smoke guide plate, the side wall of the smoke guide plate is inclined towards the direction close to the central axis of the smoke guide plate.

Furthermore, a first interval is arranged between the second end of the smoke guide plate and the bottom of the smoke gathering groove, a second interval is arranged between the side wall of the smoke guide plate and the side wall of the smoke gathering groove, and the internal space of the smoke guide plate, the first interval and the second interval are sequentially communicated so that a main smoke exhaust channel is formed in the smoke gathering groove;

the main smoke exhaust channel is communicated with the cavity through the smoke inlet.

Furthermore, a projection of the first end of the smoke guide plate on a plane where the end part of the notch of the smoke gathering groove is located is provided with a gap with the end part of the notch of the smoke gathering groove, and the gap is communicated with the second gap, so that an auxiliary smoke exhaust channel is formed in the smoke gathering groove;

the auxiliary smoke exhaust channel is communicated with the cavity through the smoke inlet.

Further, the depth of the first interval is 20-60 mm, and the depth of the gap is 10-40 mm.

Furthermore, the smoke inlet is arranged on the side wall of the smoke gathering groove, and the projection of the smoke inlet on the side wall of the smoke guide plate is positioned between the first end and the second end of the smoke guide plate.

Further, from the notch to the bottom of the cigarette collecting groove, the side wall of the cigarette collecting groove inclines towards the direction close to the central axis of the cigarette collecting groove.

Further, the fume collecting hood assembly also comprises an oil receiving cup;

the oil collecting cup is installed on the bottom edge of the smoke collecting cover, the cup mouth of the oil collecting cup is communicated with each smoke collecting groove, and the oil collecting cup is used for receiving oil stains flowing down from each smoke collecting groove.

The utility model provides a lampblack absorber includes any one of above-mentioned technical scheme collection petticoat pipe subassembly.

The utility model provides a collection petticoat pipe subassembly and lampblack absorber can produce following beneficial effect:

the utility model provides a collection petticoat pipe subassembly includes the collection petticoat pipe and holds together the cigarette frame. The smoke collecting frame is arranged in the smoke collecting hood, and the inner space of the smoke collecting hood is divided into a groove body and a cavity which are respectively positioned on two sides of the smoke collecting frame. The cigarette holding frame is provided with a plurality of cigarette holding grooves, and each cigarette holding groove is sunken along the direction from the groove body to the cavity. Each smoke collecting groove is provided with a smoke inlet which is used for communicating the smoke collecting cavity with the cavity so as to form a smoke channel in the smoke collecting cover. When the smoke collecting hood assembly is used, the smoke collecting hood assembly can be arranged above the cooker, and the groove body is located below the cavity. Gather together a plurality of cigarette grooves on the cigarette frame and be used for dividing the cell body into a plurality of collection cigarette chambeies, every collection cigarette chamber all communicates with the cavity and forms a plurality of exhaust fume duct in the collection petticoat pipe, therefore when the cavity intercommunication of the collection petticoat pipe in this collection petticoat pipe subassembly has the fan, the fan can all form the negative pressure in every collection cigarette intracavity portion, and every collection cigarette chamber all is used for gathering together the cigarette region as this collection petticoat pipe subassembly this moment. Because the volume of the inner space of every collection smoke chamber all is less than the volume of collection petticoat pipe inner space, and a plurality of collection smoke chambers all are located the cell body, therefore compare in the current collection petticoat pipe that is not provided with the cigarette board of holding together, the utility model provides an all higher negative pressure of week side of every collection smoke chamber of collection petticoat pipe subassembly inside, the oil smoke all can have higher velocity of flow when the flow of week side of every collection smoke chamber, and the oil smoke is difficult to escape from week side of every collection smoke chamber. Furthermore, the utility model provides an inside every collection smoke chamber of collection petticoat pipe subassembly is the trough-shaped, and its inside does not need to set up the cigarette board that holds together that is used for promoting the week side negative pressure in collection smoke chamber, therefore every collection smoke chamber hold together the regional degree of depth of cigarette and all can obtain guaranteeing, when having a large amount of oil smoke, the oil smoke is difficult to be followed collection smoke chamber and is escaped.

Compared with the prior art, the utility model provides a collection petticoat pipe subassembly utilizes and holds together a plurality of cigarette grooves on holding together the cigarette frame, can locate to form a plurality of collection smoke chambeies in the inside cell body of collection petticoat pipe. Because the volume of the inner space of each smoke collecting cavity is smaller than that of the inner space of the smoke collecting cover, the negative pressure on the peripheral side of each smoke collecting cavity can be ensured, and the oil smoke is not easy to escape on the peripheral side of the smoke collecting cavity. In addition, every collection smoke chamber is the slot-like, because the negative pressure of collection smoke chamber week side can obtain guaranteeing, therefore its inside need not set up the cigarette board that gathers together that is used for promoting the week side negative pressure of collection smoke chamber, and then makes the regional degree of depth of gathering together of every collection smoke chamber all obtain guaranteeing, when having a large amount of oil smoke, the oil smoke is difficult for escaping from collection smoke chamber.

The utility model provides a lampblack absorber includes above-mentioned collection petticoat pipe subassembly, therefore the utility model provides a lampblack absorber has the same beneficial effect with above-mentioned collection petticoat pipe subassembly.

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 embodiments or the technical solutions in 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a side view of a smoke collecting hood assembly according to an embodiment of the present invention;

fig. 2 is a front view of a smoke collecting hood assembly according to an embodiment of the present invention;

FIG. 3 is a bottom view of the fume collecting hood assembly of FIG. 2;

FIG. 4 is a schematic structural view of the smoke collecting hood, the smoke collecting frame and the smoke guide plate in FIG. 3;

FIG. 5 is a cross-sectional view A-A of FIG. 1;

FIG. 6 is an enlarged view of section I of FIG. 5;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 8 is an enlarged view of section II of FIG. 7;

fig. 9 is a schematic structural diagram of the range hood provided by the embodiment of the present invention.

Icon: 1-a smoke collecting hood; 10-a tank body; 11-a cavity; 2-cigarette gathering frame; 20-a cigarette collecting groove; 200-a smoke inlet; 3-smoke collecting cavity; 4-a smoke guide plate; 40-a first end; 41-a second end; 5-oil receiving cup; 6-a fan assembly; 60-a host panel; 61-host subpanel; 62-a host; 7-check valve.

Detailed Description

The technical solution 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1 to 5, the smoke collecting hood assembly provided by the present embodiment includes a smoke collecting hood 1 and a smoke collecting frame 2. As shown in fig. 2, 3 and 4, the smoke collecting frame 2 is installed inside the smoke collecting cover 1, and as shown in fig. 5, the smoke collecting frame 2 divides the internal space of the smoke collecting cover 1 into a groove 10 and a cavity 11. As shown in fig. 4, a plurality of cigarette collecting grooves 20 are provided on the cigarette collecting rack 2, and each cigarette collecting groove 20 is recessed in a direction from the trough body 10 to the cavity 11. Each smoke collecting groove 20 is provided with a smoke inlet 200, and the smoke inlet 200 is used for communicating the smoke collecting groove 20 with the cavity 11 so as to form a smoke channel in the smoke collecting cover 1.

The trough body 10 and the cavity 11 are respectively positioned at two sides of the smoke collecting frame 2, when the smoke collecting hood assembly is used, the smoke collecting hood assembly can be arranged above a cooker, and the trough body 10 is positioned below the cavity 11. Gather together a plurality of cigarette groove 20 of holding together on the cigarette frame 2 and be used for dividing into a plurality of collection smoke chamber 3 with cell body 10, every collection smoke chamber 3 all communicates with cavity 11 and forms a plurality of exhaust fume channel in collection petticoat pipe 1, therefore when the cavity 11 intercommunication of collection petticoat pipe 1 in this collection petticoat pipe subassembly has the fan, the fan can all form the negative pressure in every collection smoke chamber 3 is inside, every collection smoke chamber 3 all is used for gathering together the cigarette region as this collection petticoat pipe subassembly this moment, the oil smoke that the kitchen range eye department on the cooking utensils of collection petticoat pipe subassembly below produced can advance to go into in collection smoke chamber 3, the oil smoke channel in the rethread collection petticoat pipe 1 enters into fan department.

Because the volume of the inner space of each smoke collecting cavity 3 is smaller than the volume of the inner space of the smoke collecting cover 1, and a plurality of smoke collecting cavities 3 are all located in the groove body 10, therefore, compared with the existing smoke collecting cover which is not provided with the smoke collecting plate, the negative pressure of the peripheral side of each smoke collecting cavity 3 inside the smoke collecting cover assembly provided by the embodiment is higher, the oil smoke can have higher flow speed when flowing at the peripheral side of each smoke collecting cavity 3, and the oil smoke is not easy to escape from the peripheral side of each smoke collecting cavity 3.

In addition, every collection cigarette chamber 3 of collection petticoat pipe subassembly inside that this embodiment provided is the slot-like, and it is inside need not to set up the cigarette board that gathers together that is used for promoting the week side negative pressure of collection cigarette chamber 3, therefore every collection cigarette chamber 3 gather together the cigarette regional degree of depth and all can obtain guaranteeing, when having a large amount of oil smoke, the oil smoke is difficult for escaping from collection cigarette chamber 3.

Compared with the prior art, the smoke collecting cover assembly provided by the embodiment utilizes the plurality of smoke collecting grooves 20 on the smoke collecting frame 2, and can form a plurality of smoke collecting cavities 3 at the groove body 10 inside the smoke collecting cover 1. Because the volume of the inner space of each smoke collecting cavity 3 is smaller than that of the inner space of the smoke collecting cover 1, the negative pressure of the peripheral side of each smoke collecting cavity 3 can be ensured, and the oil smoke is not easy to escape from the peripheral side of the smoke collecting cavity 3. In addition, every collection cigarette chamber 3 is the slot-like, because the negative pressure of collection cigarette chamber 3 week side can obtain guaranteeing, therefore its inside need not set up the cigarette board that gathers together that is used for promoting collection cigarette chamber 3 week side negative pressure, and then makes every collection cigarette chamber 3 gather together the cigarette regional degree of depth and all obtain guaranteeing, when having a large amount of oil smoke, the oil smoke is difficult to escape from collection cigarette chamber 3.

It can be seen that the smoke collecting cover subassembly that this embodiment provided has alleviated the smoke collecting plate of the current smoke collecting cavity mid-mounting of lampblack absorber that exists among the prior art, can reduce the degree of depth in smoke collecting cavity, and when having a large amount of oil smoke, the technical problem that the oil smoke still escapes easily.

In this embodiment, because a plurality of cooking holes are usually arranged on the existing kitchen range, when the fume collecting cover assembly is placed above the kitchen range, the fume collecting chambers 3 can be located above the cooking holes of the kitchen range in a one-to-one correspondence manner, and at this time, one fume collecting chamber 3 corresponds to one cooking hole on the kitchen range. After the fan that collection petticoat pipe subassembly cavity 11 department intercommunication starts, the oil smoke one-to-one of every eye of a kitchen range is held up the cigarette to a plurality of collection smoke chamber 3 in, and the exhaust passage in collection smoke chamber 3 rear gets into fan department again, and the rethread fan is discharged to the external world.

The plurality of smoke collecting cavities 3 are located above the plurality of stove holes of the stove in a one-to-one correspondence mode, oil smoke at each stove hole can easily enter the corresponding smoke collecting cavity 3 in a large amount, and the oil smoke exhaust effect is further improved.

As shown in fig. 4 and 5, the smoke collecting hood assembly provided by the present embodiment further includes a plurality of annular smoke guide plates 4, and the plurality of smoke guide plates 4 are installed in the plurality of smoke collecting grooves 20 in a one-to-one correspondence.

The annular smoke guide plate 4 can guide the flow direction of oil smoke entering the smoke collection cavity 3, and can further promote the negative pressure in the smoke collection cavity 3.

Further, the smoke guide plate 4 comprises a first end 40 and a second end 41, from the notch to the bottom of the smoke collecting groove 20, the first end 40 and the second end 41 of the smoke guide plate 4 are sequentially located in the depth direction of the smoke collecting groove 20, and the opening at the second end 41 of the smoke guide plate 4 is communicated with the smoke inlet 200.

The opening at the second end 41 of the smoke guide plate 4 is communicated with the smoke inlet 200, so that the oil smoke can pass through the opening at the second end 41 of the smoke guide plate 4 and then enter the smoke collecting cavity 3.

Further, from the first end 40 to the second end 41 of the smoke guide 4, the side wall of the smoke guide 4 is inclined toward the direction close to the center axis of the smoke guide 4.

The smoke guide plate 4 guides the oil smoke entering the smoke collection cavity 3, and the side wall of the smoke guide plate 4 inclines towards the direction close to the central axis of the smoke guide plate 4 from the first end 40 to the second end 41 of the smoke guide plate 4, so that the smoke guide plate 4 further promotes the negative pressure in the smoke collection cavity 3, so that the oil smoke more easily enters the smoke collection cavity 3 after passing through the opening at the second end 41 of the smoke guide plate 4, and then flows into the cavity 11 after passing through the smoke inlet 200 from the smoke collection cavity 3.

In the present embodiment, the smoke guide 4 is of a ring structure, the outer peripheral wall of which includes four trapezoidal side walls, and the outer peripheral wall is shaped like a step.

Further, as shown in fig. 5 and 7, a first interval is provided between the second end 41 of the smoke guiding plate 4 and the bottom of the smoke collecting groove 20, a second interval is provided between the side wall of the smoke guiding plate 4 and the side wall of the smoke collecting groove 20, and the internal space of the smoke guiding plate 4, the first interval and the second interval are sequentially communicated, so that a main smoke exhaust channel is formed in the smoke collecting groove 20. The main smoke exhaust passage is communicated with the cavity 11 through the smoke inlet 200.

The solid arrows in fig. 5 and 7 represent the flow direction of the fumes in the fume collecting hood assembly. As shown in fig. 5 and 7, under the action of the fan, the oil smoke rises from the cooktop of the stove and enters the interior of the smoke guide plate 4, and then impacts the bottom of the smoke collection groove 20, and then diffuses and flows around and enters the main smoke discharge channel. The space of main exhaust channel has the shrink trend from first interval to second interval, and the fan can provide sufficient negative pressure for main exhaust channel, makes main exhaust channel department have higher velocity of flow, and then can promote the diffusion velocity of oil smoke at the tank bottom department of holding together smoke groove 20, and then can all walk the oil smoke that gets into in collection smoke chamber 3 to fan department.

Referring to the depth of the first interval as a in fig. 5 to 8, a is preferably 20 to 60 mm in this embodiment.

As shown in fig. 5, 6, 7 and 8, the projection of the first end 40 of the smoke guiding plate 4 on the plane of the end of the mouth of the smoke gathering slot 20 has a gap with the end of the mouth of the smoke gathering slot 20, and the gap is communicated with the second gap, so that an auxiliary smoke exhaust channel is formed in the smoke gathering slot 20. The auxiliary smoke evacuation channel communicates with the chamber 11 through the smoke inlet 200.

Because the auxiliary smoke exhaust channel is communicated with the cavity 11 through the smoke inlet 200, the fan communicated with the cavity 11 can also enable the auxiliary smoke exhaust channel to generate negative pressure. When a small part of the oil smoke flowing upward toward the oil smoke collecting cover 1 exceeds the peripheral dimension of the oil smoke collecting cover 1, the negative pressure generated at the auxiliary oil smoke passage can suck the escaped oil smoke back to the oil smoke collecting cover 1, thereby improving the oil smoke exhaust effect.

Referring to the depth of the gap as b in fig. 5 to 8, b is preferably 10 to 40 mm in this embodiment.

As shown in fig. 5, the smoke inlet 200 is disposed on the side wall of the smoke collecting groove 20, and the projection of the smoke inlet 200 on the side wall of the smoke guide plate 4 is located between the first end 40 and the second end 41 of the smoke guide plate 4.

In practical applications, a filter screen may be installed at the smoke inlet 200.

When the smoke inlet 200 is disposed on the side wall of the smoke collecting groove 20 and the projection of the smoke inlet 200 on the side wall of the smoke guide plate 4 is located between the first end 40 and the second end 41 of the smoke guide plate 4, the smoke guide plate 4 can shield the smoke inlet 200 or the filter screen, so that the smoke inlet 200 or the filter screen is not exposed, and the aesthetic property of the smoke collecting hood assembly is improved.

The inside wall of the collection petticoat pipe of current lampblack absorber is provided with into mouth usually, should advance the mouth and expose usually on the inside wall of collection petticoat pipe, advances the mouth department and can pile up a large amount of greasy dirt after using for a long time to the influence is used and is experienced.

And compare in the collection petticoat pipe of current lampblack absorber, the collection petticoat pipe subassembly that this embodiment provided can utilize smoke deflector 4 to shelter from into smoke mouth 200 to can promote the aesthetic property of collection petticoat pipe subassembly.

As shown in fig. 5, from the notch to the bottom of the cigarette collecting groove 20, the side wall of the cigarette collecting groove 20 is inclined toward the central axis of the cigarette collecting groove 20.

The side wall of the cigarette gathering groove 20 inclines towards the direction close to the central axis of the cigarette gathering groove 20, so that the space of the main cigarette discharging channel can be further reduced, and the negative pressure at the main cigarette discharging channel can be further improved.

As shown in fig. 7, the fume collecting hood assembly provided by the present embodiment further includes an oil receiving cup 5. The oil receiving cup 5 is installed on the bottom edge of the fume collecting cover 1, and the cup mouth of the oil receiving cup 5 is communicated with each fume collecting groove 20 and is used for receiving the oil stains flowing down from each fume collecting groove 20.

The oil receiving cup 5 is used for receiving oil stains flowing down from each smoke collecting groove 20, so that a user can clean the oil stains in the area where the smoke collecting hood assembly is located conveniently, and the cleaning difficulty is reduced.

Example two:

as shown in fig. 9, the range hood provided by the present embodiment includes the smoke collecting hood assembly in the first embodiment.

The range hood that this embodiment provided includes the collection petticoat pipe subassembly in the embodiment one, therefore the range hood that this embodiment provided and the collection petticoat pipe subassembly in the embodiment one can solve the same technical problem, reach the same technological effect, no longer describe herein.

Further, as shown in fig. 9, the range hood provided by this embodiment further includes a fan assembly 6, and the fan assembly 6 includes an inlet and an outlet. One side of the smoke collecting cover 1 provided with the cavity 11 is provided with a through hole which is communicated with the cavity 11. The fan assembly 6 is arranged on one side of the fume collecting hood 1, and an inlet of the fan assembly 6 is communicated with the through opening.

The fan assembly 6 is used for forming negative pressure at the smoke collecting cavity 3 of the smoke collecting hood assembly, so that oil smoke generated at the stove range hole of the stove positioned below the smoke collecting hood assembly can pass through the smoke exhaust channel, passes through the inlet of the fan assembly 6, enters the fan assembly 6, and is discharged to the outside of the range hood from the outlet of the fan assembly 6.

Further, the fan assembly 6 may include a main unit panel 60, a main unit sub-panel 61, and a main unit 62, and an inlet and an outlet of the fan assembly 6 are provided on the main unit 62. The main body sub-panel 61 covers and is installed at one side of the main body 62, and the main body panel 60 covers and is installed at one side of the main body sub-panel 61.

As shown in fig. 9, the present embodiment provides a fan assembly 6 having a check valve 7 installed at an outlet thereof.

The check valve 7 is used for preventing the oil smoke from reversely flowing and flowing back at the outlet of the fan assembly 6, and further can improve the smoke exhaust effect of the range hood.

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; although the present invention has been described in detail with reference to the foregoing embodiments, it should 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; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (11)

1. A fume collecting hood assembly is characterized by comprising a fume collecting hood (1) and a fume collecting frame (2);

the smoke collecting frame (2) is arranged inside the smoke collecting hood (1) and divides the inner space of the smoke collecting hood (1) into a groove body (10) and a cavity body (11);

a plurality of cigarette collecting grooves (20) are formed in the cigarette collecting frame (2), and each cigarette collecting groove (20) is sunken along the direction from the groove body (10) to the cavity (11);

each smoke gathering groove (20) is provided with a smoke inlet (200), the smoke inlet (200) is used for communicating the smoke gathering groove (20) with the cavity (11), so that a smoke channel is formed in the smoke gathering cover (1).

2. A smoke collecting hood assembly according to claim 1, further comprising a plurality of ring-shaped smoke guide plates (4), wherein the plurality of smoke guide plates (4) are installed in the plurality of smoke collecting grooves (20) in a one-to-one correspondence.

3. The smoke collecting hood assembly according to claim 2, wherein the smoke guide plate (4) comprises a first end (40) and a second end (41), from the notch of the smoke collecting groove (20) to the bottom of the groove, the first end (40) and the second end (41) of the smoke guide plate (4) are sequentially located in the depth direction of the smoke collecting groove (20), and the opening at the second end (41) of the smoke guide plate (4) is communicated with the smoke inlet (200).

4. A smoke collecting hood assembly according to claim 3, characterized in that from the first end (40) to the second end (41) of the smoke guide plate (4), the side wall of the smoke guide plate (4) is inclined towards a direction close to the central axis of the smoke guide plate (4).

5. A smoke collecting hood assembly according to claim 3, wherein a first interval is arranged between the second end (41) of the smoke guide plate (4) and the bottom of the smoke collecting groove (20), a second interval is arranged between the side wall of the smoke guide plate (4) and the side wall of the smoke collecting groove (20), and the internal space of the smoke guide plate (4), the first interval and the second interval are communicated in sequence, so that a main smoke discharging channel is formed in the smoke collecting groove (20);

the main smoke exhaust channel is communicated with the cavity (11) through the smoke inlet (200).

6. A smoke collecting hood assembly according to claim 5, wherein the projection of the first end (40) of the smoke guide plate (4) on the plane of the end part of the smoke collecting groove (20) at the notch is provided with a gap with the end part of the smoke collecting groove (20) at the notch, and the gap is communicated with the second gap, so that an auxiliary smoke exhaust channel is formed in the smoke collecting groove (20);

the auxiliary smoke exhaust channel is communicated with the cavity (11) through the smoke inlet (200).

7. A smoke collecting cage assembly according to claim 6 wherein the depth of said first gap is 20-60 mm and the depth of said gap is 10-40 mm.

8. A smoke collecting hood assembly according to claim 3, characterized in that the smoke inlet (200) is arranged on the side wall of the smoke collecting groove (20), and the projection of the smoke inlet (200) on the side wall of the smoke guide plate (4) is located between the first end (40) and the second end (41) of the smoke guide plate (4).

9. A smoke collecting hood assembly according to claim 1, wherein from the notch to the bottom of the smoke collecting groove (20), the side wall of the smoke collecting groove (20) is inclined toward a direction close to the central axis of the smoke collecting groove (20).

10. A fume collecting hood assembly according to any of claims 1-9, characterized in that the fume collecting hood assembly further comprises an oil receiving cup (5);

the oil collecting cup (5) is installed on the bottom edge of the smoke collecting cover (1), the cup opening of the oil collecting cup (5) is communicated with each smoke collecting groove (20) and used for receiving oil stains flowing down from each smoke collecting groove (20).

11. A range hood, characterized in that it comprises a smoke collecting hood assembly of any one of claims 1 to 10.

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