CN212252746U - Rotary suction type range hood - Google Patents

Abstract

The utility model discloses a rotary suction type range hood, including collection petticoat pipe and fan subassembly, wherein be provided with in collection petticoat pipe top position department and be used for the smoking portion of discharging fume toward outer, the fan subassembly sets up in the top of collection petticoat pipe and fan subassembly and smoking portion intercommunication, still including setting up the smoke guide portion in smoking portion below position department, be provided with smoke guide face in smoke guide portion's dead ahead, both sides at smoke guide face are respectively toward outer extension be provided with the whirl face so that the air current of flowing through it produces the whirl, smoke guide face is equipped with the boss toward the evagination in vertical direction, a plurality of air jet has been seted up respectively on the relative both sides wall of boss, be provided with air supply channel on collection petticoat pipe and be provided with air supply arrangement in air supply channel, air supply channel's air-out end and air jet intercommunication, air supply channel's air inlet end and collection petticoat. The oil smoke collecting device is simple in structure, and can prevent oil smoke from diffusing and escaping, so that the effect of collecting the oil smoke efficiently is achieved.

Description

Rotary suction type range hood

Technical Field

The utility model relates to a kitchen electricity technical field especially relates to a rotary suction formula range hood.

Background

The range hood is a main tool for collecting oil smoke in a kitchen, and how to improve the suction efficiency of the range hood is always important for the design and research of the range hood. When the traditional range hood inhales, the air suction range is a hemispherical area, and air in all directions is sucked indiscriminately. In this air suction mode, the air flow rate is larger at a position close to the air suction port, and the air flow rate is rapidly reduced at a position far away from the air suction port as the distance from the air suction port increases. Therefore, the air speed at the lowest part of the air suction port is reduced, which results in insufficient upward suction force, and the range hood is easily interfered by external factors, such as people walking, fan or cold air running, etc., and disturbed airflow factors are easily influenced, so that oil smoke or pollutants are dissipated along with the disturbed airflow, and the range hood has poor smoke collection and smoking effects.

Disclosure of Invention

The utility model discloses aim at solving one of the problems that exist among the prior art to a certain extent at least, for this reason, the utility model provides a rotary suction formula range hood, its simple structure can prevent that the oil smoke from diffusing the escape to reach the high efficiency and hold together the effect of cigarette.

The above purpose is realized by the following technical scheme:

a rotary-suction type range hood comprises a fume collecting hood and a fan component, wherein a fume suction part for discharging fume outwards is arranged above the fume collecting hood, the fan component is arranged at the top of the smoke collecting cover and communicated with the smoke sucking part, and also comprises a smoke guide part arranged at the position below the smoke sucking part, a smoke guide surface is arranged right in front of the smoke guide part, two sides of the smoke guide surface are respectively provided with a rotational flow surface which extends outwards to generate rotational flow for airflow passing through the smoke guide surface, the smoke guide surface is convexly provided with a lug boss outwards in the vertical direction, a plurality of air nozzles are respectively arranged on two opposite side walls of the lug boss, an air supply channel is arranged on the fume collecting cover, an air supply device is arranged in the air supply channel, the air outlet end of the air supply channel is communicated with the air jet port, and the air inlet end of the air supply channel is communicated with the outside of the smoke collecting hood.

In some embodiments, a plane is formed at the end of the swirling surface and folded outwards, and the plane is arranged from top to bottom and inclines backwards.

In some embodiments, any horizontal cross section of the swirling surface is a quarter of a circular arc, and one end of the swirling surface is tangent to the smoke guide surface, and the other end of the swirling surface is tangent to the plane of the exhaust fume collecting hood side wall.

In some embodiments, the arc diameter of the vortex surface gradually increases from bottom to top.

In some embodiments, the air supply device comprises an air supply fan, and the air supply fan is arranged at the air inlet end of the air supply channel.

In some embodiments, the air supply device further includes a hood provided on a top wall of the hood so that an air intake end of the air supply passage communicates with an outside of the hood.

In some embodiments, the air supply device further includes a filter member provided at a position between the vent cover and the air supply fan.

In some embodiments, the air supply channel includes a first air supply pipe and a second air supply pipe which are independently arranged, wherein the air supply device is arranged at the air inlet end of each of the first air supply pipe and the second air supply pipe, the air outlet end of the first air supply pipe is communicated with the air outlet on one side of the boss, and the air outlet end of the second air supply pipe is communicated with the air outlet on the other side of the boss.

In some embodiments, a first ventilation opening and a second ventilation opening are respectively arranged on two sides of the top of the smoke collecting hood, wherein the first ventilation opening is communicated with the air inlet end of the first air supply pipe, and the second ventilation opening is communicated with the air inlet end of the second air supply pipe.

Compared with the prior art, the utility model discloses an at least including following beneficial effect:

1. the utility model discloses a rotary suction type range hood, its simple structure can prevent that the oil smoke diffusion from escaping to reach the high efficiency and hold together the effect of cigarette.

Drawings

Fig. 1 is a schematic structural diagram of a range hood in an embodiment of the present invention;

fig. 2 is a schematic view of a partial structure of the range hood according to the embodiment of the present invention;

fig. 3 is a sectional view of the range hood according to the embodiment of the present invention;

fig. 4 is an exploded schematic view of a part of the structure of the range hood according to the embodiment of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below 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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the scope of the claimed technical solution of the present invention.

As shown in fig. 1 to 4, the embodiment provides a rotary-suction type range hood, which includes a smoke collecting hood 1 and a fan assembly 2, wherein a smoke sucking portion 3 for discharging smoke outwards is disposed above the smoke collecting hood 1, the fan assembly 2 is disposed on the top of the smoke collecting hood 1, the fan assembly 2 is communicated with the smoke sucking portion 3, the rotary-suction type range hood further includes a smoke guiding portion 4 disposed below the smoke sucking portion 3, a smoke guiding surface 41 is disposed right in front of the smoke guiding portion 4, two sides of the smoke guiding surface 41 are respectively provided with a rotational flow surface 42 extending outwards to generate rotational flow of airflow passing through the smoke guiding surface, the smoke guiding surface 41 is provided with a boss 43 protruding outwards in a vertical direction, two opposite side walls of the boss 43 are respectively provided with a plurality of air outlets 44, the smoke collecting hood 1 is provided with an air supply passage 5, and the air supply passage 5 is provided with an air supply device 6, an air outlet end of the air supply passage 5 is communicated with, the air inlet end of the air supply channel 5 is communicated with the outside of the smoke collecting cover 1.

In this embodiment, the range hood is provided with the smoking portion 3 at the top position of the smoke collecting hood 1, be provided with smoke guiding portion 4 below the smoke collecting hood 1, through adding the independent air supply device 6 in the smoke collecting hood 1, thereby make air supply device 6 blow off external gas from air outlets 44 on the both sides of boss 43 toward both sides of the range hood after air supply channel 5, the air current blown out by air outlets 44 on the both sides of boss 43 takes place the turning rotation to form the wind curtain after passing through smoke guiding surface 41, whirl surface 42 in proper order, because of the gas viscous effect, the whirl of smoke guiding portion 4 cooperates the suction force of the fan assembly 2 of the range hood itself, thereby form unique spiral air current, and then make the range hood form the spin-suction gathering effect before the oil smoke gas diffusion, its simple structure, can prevent the oil smoke diffusion from escaping, reach the effect of high-efficient gathering the cigarette.

In this embodiment, a smoke absorbing part 3 flush with the horizontal line is disposed at the top of the smoke collecting cover 1, a plurality of smoke inlets are disposed at the position of the smoke absorbing part 3, so that the smoke absorbing part 3 can serve as an oil net, on one hand, the oil net can be separated from the smoke, on the other hand, the oil net can be omitted, the assembly process can be simplified, the manufacturing cost can be reduced, the smoke generated by cooking can be guided into the smoke collecting cover 1 through the smoke absorbing part 3, the smoke entering the smoke collecting cover 1 can be discharged to the outside through the fan assembly 2, a smoke guiding part 4 is disposed at the lower position of the smoke absorbing part 3, the smoke guiding part 4 is disposed at the rear side of the bottom surface of the smoke absorbing part 3, and the back surfaces of the smoke guiding part 4 and the smoke guiding part 4 are disposed on the same plane 45, so that the smoke absorbing part 3 and the smoke guiding part 4 form a 7 shape, and the front side of the bottom surface of the smoke absorbing part 3 is used for preventing the smoke from, one side of the rotational flow surface 42 is connected with the smoke guide surface 41, the other side is bent and then extends outwards, so that the smoke collecting hood 1 defines an inwards concave cavity, a boss 43 is arranged at the middle position of the smoke guide surface 41 in a vertical direction in a protruding mode, the smoke collecting hood 1 is divided into two parts which are symmetrical left and right, the boss 43 is provided with two opposite side surfaces, the two side surfaces are arranged in a protruding mode relative to the smoke guide surface 41, a front panel is connected between the two side surfaces, a plurality of air nozzles 44 are symmetrically arranged on the two opposite side walls of the boss 43 respectively, the air nozzles 44 are symmetrically arranged on the left side wall and the right side wall of the boss 43, the air supply channel 5 is connected with the back of the boss 43 so that the air outlet end of the air supply channel 5 is communicated with the air nozzles 44, the air inlet end of the air supply channel 5 is communicated with the outside of the smoke collecting hood 1, when the air supply device 6 is started to work so as, the gas introduced into the blowing duct 5 is blown out to both sides through the gas ejection ports 44. The shape of the air outlets 44 in this embodiment is a long hole, a polygonal hole, or a star-shaped hole, but is not limited to the above shape, and the air outlets 44 with an appropriate shape may be selected according to actual needs as long as the function of injecting air outwards is achieved. In this embodiment, the air supply duct may be formed by connecting several sections of hard pipes, and may also be formed by using other forms such as a hose and an adapter.

Furthermore, the end part of the rotational flow surface 42 is bent outwards to form a plane 45, and the plane 45 is arranged from top to bottom and inclined backwards, so that the structure is simple and the design is reasonable.

Preferably, any horizontal section of the rotational flow surface 42 is a quarter of circular arc, one end of the rotational flow surface 42 is tangent to the smoke guide surface 41, and the other end is tangent to the plane of the side wall of the smoke collecting hood 1.

Specifically, the diameter of the arc of the swirling surface 42 is gradually increased from the bottom to the top, the structure is simple, the design is reasonable, and the smoke gathering and smoking effect can be further improved.

In this embodiment, the front ends of the two sides of the smoke collecting hood 1 are provided with the plane 45, the plane 45 is connected with the smoke guiding surface 41 through the rotational flow surface 42, any horizontal section of the rotational flow surface 42 is a quarter circular arc, one end of the circular arc of the rotational flow surface 42 is tangent to the side edge of the plane 45 in the front-rear direction, the other end of the circular arc is tangent to one side of the smoke guiding surface 41 in the left-right direction, so that airflow can form rotational flow gas, due to the wall attachment effect, upward airflow in a spiral manner is formed under the matching of upward axial suction force generated by the fan assembly 2, and therefore the oil smoke is upwards sucked and gathered before being diffused, the oil smoke is prevented from being diffused and escaping, and the. The diameter of the arc of the swirling surface 42 gradually increases from bottom to top, so that under the matching action of the air jet 44 and the swirling surface 42, the airflow is further enhanced to form a tornado effect, and the effect of enhancing the effect of absorbing and gathering oil smoke by swirling is facilitated.

Preferably, the air supply device 6 comprises an air supply fan 61, the air supply fan 61 is arranged at the air inlet end of the air supply channel 5, the design is reasonable and ingenious, and the external air of the smoke collecting hood 1 can be conveniently led into the air supply channel 5.

Preferably, air supply arrangement 6 still includes vent flap 62, vent flap 62 set up in so that on the roof of collection petticoat pipe 1 the air inlet end of air supply passageway 5 with collection petticoat pipe 1's outside intercommunication, its simple structure can prevent effectively that external debris or reptile from entering into air supply passageway 5 the inside.

Further, air supply arrangement 6 still includes filtering component 63, and filtering component 63 sets up the position department between ventilation lid 62 and the fan, and its simple structure, reasonable in design for filter external debris, with prevent that range hood from long-time work back external debris from polluting air supply arrangement 6 or supply air duct, and then avoid the jet orifice 44 to take place the jam.

Specifically, air supply channel 5 is including independent setting's first blast pipe 51 and second blast pipe 52, wherein all is provided with air supply arrangement 6 in the air inlet department of first blast pipe 51 and second blast pipe 52, the air-out end of first blast pipe 51 and the air jet 44 intercommunication of one side wherein of boss 43, the air-out end of second blast pipe 52 and the air jet 44 intercommunication of the other side of boss 43, its simple structure, reasonable in design can effectively improve range hood's the effect of holding together the cigarette and smoking.

In particular, a first ventilating opening 53 and a second ventilating opening 54 are respectively arranged at two sides of the top of the smoke collecting hood 1, wherein the first ventilating opening 53 is communicated with the air inlet end of the first air supply pipe 51, the second ventilating opening 54 is communicated with the air inlet end of the second air supply pipe 52,

in the present embodiment, the first ventilation opening 53 and the second ventilation opening 54 are respectively provided on both sides of the top of the smoke collecting hood 1, that is, the first ventilation opening 53 is provided at the left position of the smoke collecting hood 1, the second ventilation opening 54 is provided at the right position of the smoke collecting hood 1, the air supply passage 5 includes the first air supply pipe 51 and the second air supply pipe 52 which are provided independently of each other, the first ventilation opening 53 communicates with the air outlet 44 on the left side wall of the boss 43 through the first air supply pipe 51, and the second ventilation opening 54 communicates with the air outlet 44 on the right side wall of the boss 43 through the second air supply pipe 52. In this embodiment, the number of the air supply devices 6 is two, one of the air supply devices 6 is arranged in the first air supply pipe 51 to form the first air supply device 6, the other one is arranged in the second air supply pipe 52 to form the second air supply device 6, the first air supply device 6 comprises a first air supply fan 61 and a first ventilation cover 62, the first air supply fan 61 is arranged in the first air supply pipe 51, a plurality of through holes for passing outside air are formed in the first ventilation cover 62, the first ventilation cover 62 is arranged at the first ventilation opening 53 and is flush with the outer end face of the first ventilation opening 53, so that by additionally arranging the first ventilation cover 62, outside impurities can be prevented from entering the first ventilation opening 53 and the first air supply fan 61, further, the air jet opening 44 is prevented from being blocked by the outside impurities, and the use performance of the range hood is ensured; second air supply arrangement 6 includes second air supply fan 61 and second ventilation lid 62, second air supply fan 61 sets up in second blast pipe 52, set up the through-hole that a plurality of confession outside air passed through on second ventilation lid 62, second ventilation lid 62 lid is located second ventilation opening 54 department and is parallel and level mutually with the outer terminal surface in second ventilation opening 54, so through addding second ventilation lid 62, can prevent that external impurity from entering into second ventilation opening 54 and second air supply fan 61 the inside, and then avoid external impurity to block up air jet 44, guarantee range hood's performance.

In this embodiment, the first air supply device 6 further includes a first filtering member 63, the first filtering member 63 is disposed between the first ventilation cover 62 and the first air supply fan 61, the first filtering member 63 is used for filtering external impurities to prevent the range hood from polluting the first air supply device 6 and the first air supply pipe 51 after long-time operation, and further prevent the air jet 44 from being blocked, preferably, the cross section of the first filtering member 63 is rectangular, and a plurality of filtering holes are disposed on both the top surface and the bottom surface of the first filtering member 63, so that dual filtering can be formed, the filtering effect is improved, further the first air supply device 6 and the first air supply pipe 51 are prevented from being polluted, and the usability of the range hood is further improved; the second air supply device 6 further comprises a second filtering component 63, the second filtering component 63 is arranged between the second ventilating cover 62 and the second air supply fan 61, the second filtering component 63 is used for filtering external impurities so as to prevent the range hood from polluting the second air supply device 6 and the second air supply pipe 52 after working for a long time, and further prevent the air jet 44 from being blocked.

In this embodiment, the user starts range hood when cooking and works, and fan assembly 2 and air supply arrangement 6 start, and fan assembly 2 produces ascending suction, drives external air current and oil smoke and flows into the smoking portion 3 the inside of collection petticoat pipe 1 from advancing the mouth of a cigarette, and follow range hood exhaust pipe behind fan assembly 2 and discharge outdoors. The air supply device 6 brings the outside air into the air supply channel 5 after passing through the filter member 63 from the ventilation cover 62, the air entering the air supply channel 5 is respectively ejected from the air nozzles 44 on the left side wall and the right side wall of the boss 43, due to the air viscosity effect, the air ejected from the air nozzles 44 on both sides of the boss 43 forms air curtains on both sides of the smoke collecting hood 1 and makes turning rotation to generate swirling air when passing through the swirling surface 42, and forms upward spiral airflow under the coordination of the upward suction force generated by the fan assembly 2, so that the oil smoke is upwards and spirally sucked and gathered before diffusion, the oil smoke is prevented from being diffused and escaping, and the rotary smoking effect is improved.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims (9)

1. The utility model provides a rotary-suction type range hood, includes collection petticoat pipe (1) and fan subassembly (2), wherein collection petticoat pipe (1) top position department is provided with and is used for the smoking portion (3) of discharging fume toward outer, fan subassembly (2) set up in the top of collection petticoat pipe (1) just fan subassembly (2) with smoking portion (3) intercommunication, its characterized in that still including setting up smoke guide portion (4) of smoking portion (3) below position department the dead ahead of smoke guide portion (4) is provided with smoke guide surface (41) lead the both sides of smoke guide surface (41) respectively toward outer extension be provided with whirl surface (42) so that the air current of flowing through it produces the whirl, smoke guide surface (41) are equipped with boss (43) toward the evagination in the vertical direction a plurality of air jet (44) have been seted up respectively on the relative both sides wall of boss (43), be provided with air supply passageway (5) on collection petticoat pipe (1) and be provided with air supply arrangement (6) in air supply passageway (5), the air-out end of air supply passageway (5) with air jet (44) intercommunication, the air inlet end of air supply passageway (5) with the outside intercommunication of collection petticoat pipe (1).

2. The rotary suction type range hood according to claim 1, wherein the end of the swirling surface (42) is bent outward to form a flat surface (45), and the flat surface (45) is inclined from top to bottom and backward.

3. A rotary suction type range hood according to claim 1, wherein any horizontal section of the rotary flow surface (42) is a quarter of a circular arc, and one end of the rotary flow surface (42) is tangent to the smoke guide surface (41) and the other end is tangent to the plane (45) of the side wall of the smoke collecting hood (1).

4. The rotary-suction range hood according to claim 3, wherein the circular arc diameter of the swirling surface (42) is gradually increased from bottom to top.

5. The rotary suction type range hood according to claim 1, wherein the air supply device (6) comprises an air supply fan (61), and the air supply fan (61) is arranged at an air inlet end of the air supply channel (5).

6. The rotary suction type range hood according to claim 5, wherein the air supply device (6) further comprises a ventilation cover (62), the ventilation cover (62) is arranged on the top wall of the smoke collecting hood (1) to enable the air inlet end of the air supply channel (5) to be communicated with the outside of the smoke collecting hood (1).

7. The rotary suction type range hood according to claim 6, wherein the air supply device (6) further comprises a filter member (63), and the filter member (63) is disposed between the ventilation cover (62) and the air supply fan (61).

8. The rotary suction type range hood according to any one of claims 1 to 7, wherein the air supply channel (5) comprises a first air supply pipe (51) and a second air supply pipe (52) which are independently arranged, wherein the air supply device (6) is arranged at the air inlet end of each of the first air supply pipe (51) and the second air supply pipe (52), the air outlet end of the first air supply pipe (51) is communicated with the air outlet (44) on one side of the boss (43), and the air outlet end of the second air supply pipe (52) is communicated with the air outlet (44) on the other side of the boss (43).

9. The rotary suction type range hood according to claim 8, wherein a first ventilation opening (53) and a second ventilation opening (54) are respectively arranged on two sides of the top of the fume collecting hood (1), wherein the first ventilation opening (53) is communicated with the air inlet end of the first air supply pipe (51), and the second ventilation opening (54) is communicated with the air inlet end of the second air supply pipe (52).

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