CN212746622U - Anti-overflow high-efficient smoke ventilator - Google Patents

Abstract

The utility model relates to the technical field of kitchen utensils, and discloses an anti-overflow high-efficiency smoke exhaust ventilator, which comprises a smoke collection shell, wherein a volute is fixed in the smoke collection shell, a smoke outlet of the volute passes through the upper side wall of the smoke collection shell, smoke inlets are arranged at the left end and the right end of the volute, an impeller is arranged in the volute and comprises an intermediate base plate, a group of blades which are uniformly distributed circumferentially are respectively fixed at the left side and the right side of the intermediate base plate, the two groups of blades and the intermediate base plate form two independent smoke conveying units, the intermediate base plate is fixed on a rotor of an external rotor motor, and a stator shaft of the external rotor motor is fixedly; the lower side wall of the smoke collection shell is provided with a filter screen, the upper side of the filter screen is provided with a one-way oil smoke channel, and the one-way oil smoke channel is arranged below the volute. The two groups of independent blades are arranged on the impeller to deliver smoke, and the one-way oil smoke channel is arranged, so that the efficiency and the quality of oil smoke pumping can be greatly improved, and the overflow of oil smoke is reduced.

Description

Anti-overflow high-efficient smoke ventilator

The technical field is as follows:

the utility model relates to a kitchen utensil technical field, concretely relates to prevent excessive high-efficient smoke ventilator.

Background art:

the kitchen ventilator is also called as a range hood, and is a kitchen appliance for purifying the kitchen environment. The kitchen ventilator is arranged above a kitchen stove, and can rapidly pump away waste burnt by the stove and oil smoke harmful to human bodies generated in the cooking process and discharge the waste and the oil smoke out of a room. However, the existing range hood only has one impeller to deliver smoke, so that a lot of oil smoke is easy to overflow, and the oil smoke extraction efficiency is low and the quality is unstable; meanwhile, oil, water, impurities and the like are easy to accumulate in the shell where the impeller of the range hood is located, and the range hood is very inconvenient to clean.

The utility model has the following contents:

the utility model aims to overcome the defects of the prior art and provide an anti-overflow high-efficiency smoke exhaust ventilator, which can greatly improve the efficiency and quality of smoke exhaust and reduce the overflow of oil smoke by arranging two groups of independent blades on an impeller to deliver smoke and arranging a one-way oil smoke channel;

and meanwhile, the oil outlet pipe is arranged at the bottom of the volute, so that the impurities such as oil at the bottom of the volute can be conveniently cleaned.

The utility model provides a technical problem's scheme is:

an anti-overflow high-efficiency smoke exhaust ventilator comprises a smoke collection shell, wherein a volute is fixed in the smoke collection shell, a smoke outlet of the volute penetrates through the upper side wall of the smoke collection shell, smoke inlets are formed in the left end and the right end of the volute, an isolating ring is arranged in the middle of the volute, an impeller is arranged in the isolating ring and comprises an intermediate base plate, a group of blades which are uniformly distributed circumferentially are fixed on the left side and the right side of the intermediate base plate respectively, two groups of blades and the intermediate base plate form two independent smoke conveying units, the intermediate base plate is fixed on a rotor of an outer rotor motor, and a stator shaft of the outer rotor motor is fixedly connected; the lower side wall of the smoke collection shell is provided with a filter screen, the upper side of the filter screen is provided with a one-way oil smoke channel, and the one-way oil smoke channel is arranged below the volute.

The one-way oil smoke passageway includes two arcs that set up around, and two arcs are fixed respectively on the rear wall and the preceding lateral wall of collection cigarette casing, are fixed with the V type slat of a plurality of circumference equipartitions between two arcs, and two adjacent V type slats form one big-end-up's the cigarette passageway that advances that is "V" style of calligraphy of falling.

An oil outlet pipe is fixed on the lower side wall of the volute, the other end of the oil outlet pipe is inserted and sleeved at the upper end of a vertically arranged oil storage pipe, and the lower end of the oil storage pipe is inserted and sleeved on and fixed on the lower side wall of the smoke collection shell; the oil storage pipe penetrates through the lower extending end of the smoke collection shell and is connected with an oil discharge cover in a threaded mode.

An isolation pad is clamped between the oil discharge cover and the lower end face of the oil storage pipe and is fixed in the oil discharge cover.

And a vent hole is formed in the upper side wall of the oil outlet pipe.

And a sponge is fixed in the vent hole.

The utility model discloses an outstanding effect is:

compared with the prior art, the smoke exhaust fan has the advantages that two groups of independent blades are arranged on the impeller to convey smoke, and the one-way smoke channel is arranged, so that the efficiency and the quality of smoke exhaust can be greatly improved, and the overflow of smoke is reduced;

and meanwhile, the oil outlet pipe is arranged at the bottom of the volute, so that the impurities such as oil at the bottom of the volute can be conveniently cleaned.

Description of the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view of FIG. 2 taken about A-A;

fig. 4 is a partially enlarged view of fig. 3 with respect to B.

The specific implementation mode is as follows:

in the embodiment, as shown in fig. 1 to 4, an anti-overflow high-efficiency range hood comprises a smoke collection housing 1, a volute 2 is fixed in the smoke collection housing 1, a smoke outlet 21 of the volute 2 penetrates through the upper side wall of the smoke collection housing 1, smoke inlets 22 are arranged at two ends of the volute 2, an isolating ring 23 is arranged in the middle of the volute 2, an impeller 3 is arranged in the isolating ring 23, the impeller 3 comprises a middle base plate 31, a group of blades 32 uniformly distributed circumferentially are fixed at each of the left side and the right side of the middle base plate 31, the two groups of blades 32 and the middle base plate 31 form two independent smoke delivery units 300, the middle base plate 31 is fixed on a rotor 41 of an outer rotor motor 4, and a stator shaft 42 of the outer rotor motor 4 is fixedly connected with the volute 2; the lower side wall of the smoke collection shell 1 is provided with a filter screen 5, the upper side of the filter screen 5 is provided with a one-way oil smoke channel 6, and the one-way oil smoke channel 6 is arranged below the volute 2.

Furthermore, the one-way oil smoke channel 6 comprises two arc-shaped plates 61 arranged in front and back, the two arc-shaped plates 61 are respectively fixed on the back side wall and the front side wall of the smoke collection shell 1, a plurality of V-shaped strips 62 uniformly distributed on the circumference are fixed between the two arc-shaped plates 61, and the two adjacent V-shaped strips 62 form a smoke inlet channel 63 which is in an inverted V shape with a large top and a small bottom.

Furthermore, an oil outlet pipe 71 is fixed on the lower side wall of the volute 2, the other end of the oil outlet pipe 71 is inserted and sleeved at the upper end of a vertically arranged oil storage pipe 72, and the lower end of the oil storage pipe 72 is inserted and sleeved and fixed on the lower side wall of the smoke collection shell 1; the oil storage pipe 72 is screwed with an oil discharge cover 73 through the lower extending end of the smoke collection housing 1.

Further, a spacer 74 is interposed between the oil drain cover 73 and the lower end surface of the oil storage pipe 72, and the spacer 74 is fixed in the oil drain cover 73.

Further, a vent hole 711 is formed in an upper side wall of the oil outlet pipe 71.

Further, a sponge 75 is fixed in the vent hole 711.

The working principle is as follows: the outer rotor motor 4 drives the impeller 3 to rotate, two groups of blades 32 on the impeller 3 form two smoke conveying units 300 to respectively pump air to smoke inlets 22 on two sides of the volute 2, at the moment, a low-pressure cavity (the pressure is less than the atmospheric pressure) is formed in the space on the outer side of the volute and the inner side of the smoke collection shell 1, oil smoke enters the smoke collection shell 1 through the filter screen 5, then enters the one-way oil smoke channel 6 and the cavity on the outer side of the volute from a smoke inlet channel 63 between the two V-shaped strip plates 62, and finally is discharged from the smoke inlets 22 on two ends of the volute 2 to a smoke outlet 21 through the impeller; because the upper end opening part of the smoke inlet channel 63 is small, the oil smoke entering the one-way oil smoke channel 6 and the cavity outside the volute cannot easily flow back into the outer cavity formed by the one-way oil smoke channel 6 and the smoke collection shell 1, the smoke extraction efficiency can be further improved, and the oil smoke overflow is further reduced;

because the time that the impeller 2 contacts the oil smoke is long, oil, water, impurities and the like are easy to accumulate on the impeller 2, and when the impeller 2 stops, the oil, the water, the impurities and the like on the impeller 2 drop into the volute 2 and are accumulated at the bottom of the volute 2; the oil, water, impurities, etc. accumulated at the bottom of the scroll casing 2 are introduced into the oil storage pipe 72 through the oil outlet pipe 71, and the oil in the oil storage pipe 72 can be discharged by unscrewing the oil discharge cap 73.

Finally, the above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims (6)

1. The utility model provides an anti-overflow high-efficient smoke ventilator, includes collection cigarette casing (1), its characterized in that: a volute (2) is fixed in the smoke collection shell (1), a smoke outlet (21) of the volute (2) penetrates through the upper side wall of the smoke collection shell (1), smoke inlets (22) are respectively arranged at the left end and the right end of the volute (2), an isolating ring (23) is arranged in the middle of the volute (2), an impeller (3) is arranged in the isolating ring (23),

the impeller (3) comprises a middle base plate (31), a group of blades (32) which are uniformly distributed on the circumference are respectively fixed on the left side and the right side of the middle base plate (31), two groups of blades (32) and the middle base plate (31) form two independent smoke conveying units (300),

the middle substrate (31) is fixed on a rotor (41) of the outer rotor motor (4), and a stator shaft (42) of the outer rotor motor (4) is fixedly connected with the volute (2); the lower side wall of the smoke collection shell (1) is provided with a filter screen (5), the upper side of the filter screen (5) is provided with a one-way oil smoke channel (6), and the one-way oil smoke channel (6) is arranged below the volute (2).

2. The anti-overflow high-efficiency range hood according to claim 1, characterized in that: one-way oil smoke passageway (6) include two arc (61) that set up from beginning to end, and two arc (61) are fixed respectively on the back lateral wall and the preceding lateral wall of collection cigarette casing (1), "V" type slat (62) of a plurality of circumference equipartitions are fixed between two arc (61), and two adjacent "V" type slats (62) form one big-end-up's be down "V" style of calligraphy advance cigarette passageway (63).

3. The anti-overflow high-efficiency range hood according to claim 1, characterized in that: an oil outlet pipe (71) is fixed on the lower side wall of the volute (2), the other end of the oil outlet pipe (71) is inserted and sleeved at the upper end of a vertically arranged oil storage pipe (72), and the lower end of the oil storage pipe (72) is inserted and sleeved and fixed on the lower side wall of the smoke collection shell (1); the oil storage pipe (72) penetrates through the lower extending end of the smoke collection shell (1) and is in threaded connection with an oil discharge cover (73).

4. The anti-overflow high-efficiency range hood according to claim 3, characterized in that: an isolation pad (74) is clamped between the oil discharge cover (73) and the lower end face of the oil storage pipe (72), and the isolation pad (74) is fixed in the oil discharge cover (73).

5. The anti-overflow high-efficiency range hood according to claim 3, characterized in that: and a vent hole (711) is formed in the upper side wall of the oil outlet pipe (71).

6. The anti-overflow high-efficiency range hood according to claim 5, characterized in that: a sponge (75) is fixed in the vent hole (711).

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