CN211399910U

CN211399910U - Fume exhaust fan

Info

Publication number: CN211399910U
Application number: CN201921474853.3U
Authority: CN
Inventors: 陈关锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-09-01
Anticipated expiration: 2029-09-06

Abstract

The utility model relates to a range hood device, specifically say so, a fan and flue separation have easily clean, the range hood device that smoke exhaust effect is good, long service life, including flue pipe and shell, the shell includes the cigarette machine main part and holds together the petticoat pipe, the cigarette machine main part with hold together the petticoat pipe and be located respectively the outside and the bottom of flue pipe, the cigarette machine main part with be provided with the draft tube between the flue pipe for introduce outside air inside the flue pipe. The utility model has the advantages that: the fan is separated from the flue, oil smoke can be discharged through the flue pipe without passing through the fan, oil stain is prevented from being adhered to the fan, the smoke discharging effect is good, the cleaning is easy, and the service life is long.

Description

Fume exhaust fan

Technical Field

The utility model relates to a range hood field specifically is a range hood.

Background

The range hood is a kitchen fume extractor, and at present, the inside fan of range hood on the market all is installed inside the flue pipe, rotates through the fan and forms the air current, takes away the oil smoke of range hood bottom, but this kind of range hood has following problem: the fan is installed inside the flue pipe, and when discharging fume through the flue pipe, oil in the flue gas can the adhesion on the fan, and smoke exhaust effect is poor, needs regularly to dismantle the clearance to the fan, and not only the fan is dismantled the difficulty, and the greasy dirt of adhesion is more troublesome on the clearance fan moreover.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a range hood to solve traditional range hood that proposes in the above-mentioned background art and install the fan inside the flue pipe, the smoke exhaust effect is poor, needs regularly to dismantle the clearance to the fan, and not only the fan is dismantled the difficulty, clears up the greasy dirt of adhesion on the fan moreover and more is trouble scheduling problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a range hood, includes flue pipe and shell, the shell includes the cigarette machine main part and holds the petticoat pipe, the cigarette machine main part with hold the petticoat pipe and be located respectively the outside and the bottom of flue pipe, the cigarette machine main part with be provided with the draft tube between the flue pipe for introduce outside air inside the flue pipe.

Preferably, the draft tube is sleeved on the periphery of the lower portion of the flue pipe, an A fan is installed between the draft tube and the flue pipe, the A fan blows downwards, the bottom of the draft tube is integrally connected with an arc-shaped air collecting panel, the edge of the arc-shaped air collecting panel is bent upwards, a blowing port is formed between the arc-shaped air collecting panel and the edge of the lower end of the flue pipe, the upper end of the flue pipe is connected with an upper draft tube, a B fan is installed inside the lower end of the upper draft tube, and the B fan blows upwards.

Preferably, the draft tube includes first draft tube and second draft tube, and first draft tube and second draft tube are all established in the flue pipe periphery, first draft tube is located flue pipe upper portion position, and the second draft tube is located flue pipe lower part position, and the upper end of first draft tube and the lower extreme of second draft tube all are equipped with arc collection wind panel, two be equipped with the mouth of blowing between the tip of arc collection wind panel and flue pipe, the clearance between first draft tube and the second draft tube is inlet channel, just A fan is all installed to the inside of first draft tube and second draft tube.

Preferably, a circular ring-shaped partition plate is arranged between the first guide cylinder and the second guide cylinder, and the partition plate is fixedly installed on the outer wall of the flue pipe.

Preferably, the mouth of blowing is 0.1 ~ 5 cm's gap for the air current has improved the air current velocity of flow greatly after the air current passes through between the bottom of arc collection wind panel and flue pipe bottom, and the effect of induced drafting is showing.

Preferably, the inner wall of the air inlet at the bottom end of the flue pipe is provided with an arc-shaped protruding panel, so that the air flow can flow towards the center of the inside of the flue pipe conveniently.

Compared with the prior art, the beneficial effects of the utility model are that:

with fan and flue pipe separation, make the oil smoke just can pass through the flue pipe and discharge through the fan, avoid the greasy dirt adhesion on the fan, smoke exhaust effect is good, helps prolonging the life of fan, need not to regularly clear up the fan because of the greasy dirt, and convenient province trouble.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of an internal structure of a first embodiment of the present invention;

fig. 3 is a schematic view of the internal structure of a second embodiment of the present invention;

fig. 4 is a perspective view of the fan of the present invention a.

In the figure: 1. a cigarette machine main body; 2. collecting a smoke hood; 3. a draft tube; 31. a first draft tube; 32. a second draft tube; 301. an arc-shaped wind collecting panel; 4. a flue pipe; 401. an arc-shaped protruding panel; 5. an upper draft tube; 6. a, a fan; 7. an air blowing port; 8. a partition plate; 9. and B, a fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1-2 and 4, a range hood comprises a flue pipe 4 and a shell, wherein the shell comprises a cigarette machine main body 1 and a smoke collecting hood 2, the cigarette machine main body 1 and the smoke collecting hood 2 are respectively positioned at the outer side and the bottom of the flue pipe 4, and a draft tube 3 is arranged between the cigarette machine main body 1 and the flue pipe 4 and used for introducing external air into the flue pipe 4.

Specifically, 3 covers of draft tube are established in flue pipe 4 lower part periphery, and install A fan 6 between draft tube 3 and the flue pipe 4, A fan 6 blows downwards, 3 bottom an organic whole of draft tube are connected with arc collection wind panel 301, the edge of arc collection wind panel 301 upwards buckles, just arc collection wind panel 301 with be equipped with blowing port 7 between the lower extreme edge of flue pipe 4, the upper portion end-to-end connection of flue pipe 4 has draft tube 5, the lower extreme internally mounted of going up draft tube 5 has B fan 9, B fan 9 blows upwards.

Specifically, mouth 7 of blowing is 0.1 ~ 5 cm's gap for the air current has improved the air current velocity of flow greatly after the air current passes through between the bottom of arc collection wind panel 301 and the flue pipe 4 bottom, and the effect of induced drafting is showing.

Specifically, the inner wall of the air inlet at the bottom end of the flue pipe 4 is provided with an arc-shaped protruding panel 401, so that the airflow can flow towards the center inside the flue pipe 4 conveniently.

The working principle is as follows: at the lampblack absorber during operation, the below is held together petticoat pipe 2 and is used for gathering the oil smoke, in order to prevent the oil smoke diffusion, A fan 6 that is located between draft tube 3 and flue pipe 4 blows the air downwards, the air passes 7 of blowing mouths and flows to flue pipe 4 upper portion, it upwards flows to drive the flue gas that holds together 2 down the petticoat pipe, and simultaneously, the B fan 9 in the last draft tube 5 upwards blows, it upwards flows to drive the flue gas in flue pipe 4, play the effect that the pressure boost was discharged fume, B fan 9 also does not contact with the oil smoke, be favorable to prolonging the life of B fan 9.

Example II,

Referring to fig. 3 and 4, a range hood, includes flue pipe 4 and shell, the shell includes cigarette machine main part 1 and holds together petticoat pipe 2, cigarette machine main part 1 with hold together petticoat pipe 2 and be located respectively the outside and the bottom of flue pipe 4, wherein, the vent has been seted up to the outer wall position of cigarette machine main part 1, and the vent sets up the position between first draft tube 31 and second draft tube 32, first draft tube 31 and second draft tube 32 are used for introducing outside air inside flue pipe 4.

Specifically, draft tube 3 includes first draft tube 31 and second draft tube 32, first draft tube 31 and second draft tube 32 are all established at flue pipe 4 periphery, first draft tube 31 is located flue pipe 4 upper portion position, second draft tube 32 is located flue pipe 4 lower part position, the upper end of first draft tube 31 and the lower extreme of second draft tube 32 all are equipped with arc collection wind panel 301, be equipped with mouth of blowing 7 between the tip of two arc collection wind panels 301 and flue pipe 4, the clearance between first draft tube 31 and the second draft tube 32 is inlet channel, just A fan 6 is all installed to the inside of first draft tube 31 and second draft tube 32.

Specifically, a circular ring-shaped partition plate 8 is arranged between the first guide cylinder 31 and the second guide cylinder 32, and the partition plate 8 is fixedly installed on the outer wall of the flue pipe 4.

Specifically, mouth 7 of blowing is 0.1 ~ 5 cm's gap for the air current has improved the air current velocity of flow greatly after the air current passes through between the bottom 301 of arc collection wind panel and the flue pipe 4 bottom, and the effect of induced drafting is showing.

The working principle is as follows: the two fans 6A between the first guide cylinder 31 and the second guide cylinder 32 and the flue pipe 4 respectively guide air into the flue pipe 4 upwards and downwards through the air blowing ports 7, the air blown into the flue pipe 4 flows upwards, the air flows upwards, negative pressure is formed in the flue pipe 4, and the purpose of exhausting oil smoke by using oil smoke is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A range hood, its characterized in that: including flue pipe (4) and shell, the shell includes cigarette machine main part (1) and holds together petticoat pipe (2), cigarette machine main part (1) with it is located respectively to hold together petticoat pipe (2) the outside and the bottom of flue pipe (4), cigarette machine main part (1) with be provided with draft tube (3) between flue pipe (4) for introduce outside air inside flue pipe (4), the inner wall of flue pipe (4) bottom air intake is provided with protruding panel of arc (401), is convenient for the air current to put towards flue pipe (4) inside center and flows.

2. A range hood according to claim 1, wherein: the utility model discloses a flue pipe, including draft tube (3), flue pipe (4), air guide cylinder (3) cover and be in, air guide cylinder (3) and flue pipe (4) are established in the lower part periphery, and install A fan (6) between draft tube (3) and flue pipe (4), A fan (6) blow downwards, draft tube (3) bottom an organic whole is connected with arc collection wind panel (301), the edge of arc collection wind panel (301) is upwards buckled, just arc collection wind panel (301) with be equipped with mouth of blowing (7) between the lower extreme edge of flue pipe (4), the upper portion end-to-end connection of flue pipe (4) has last draft tube (5), the lower extreme internally mounted of going up draft tube (5) has B fan (9).

3. A range hood according to claim 1, wherein: guide shell (3) include first guide shell (31) and second guide shell (32), and first guide shell (31) and second guide shell (32) are all established in flue pipe (4) periphery, first guide shell (31) are located flue pipe (4) upper portion position, second guide shell (32) are located flue pipe (4) lower part position, the upper end of first guide shell (31) and the lower extreme of second guide shell (32) all are equipped with arc collection wind panel (301), be equipped with between the tip of two arc collection wind panels (301) and flue pipe (4) mouth of blowing (7), the clearance between first guide shell (31) and second guide shell (32) is air inlet channel, just A fan (6) are all installed to the inside of first guide shell (31) and second guide shell (32).

4. A range hood according to claim 3, wherein: a circular ring-shaped partition plate (8) is arranged between the first guide cylinder (31) and the second guide cylinder (32), and the partition plate (8) is fixedly installed on the outer wall of the flue pipe (4).

5. A range hood according to any one of claims 2 or 3, wherein: the air blowing port (7) is a gap of 0.1-5 cm, so that the air flow speed is greatly improved after the air flow passes through the space between the bottom of the arc-shaped air collecting panel (301) and the bottom of the flue pipe (4), and the air suction effect is obvious.