CN211952868U - Range hood with rotary suction effect - Google Patents

Abstract

The utility model discloses a range hood with effect of inhaling soon, 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 air intake and the smoking portion intercommunication of the top of collection petticoat pipe and fan subassembly, 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, it has the whirl face so that the air current of flowing through it produces the whirl to go out the extension respectively in smoke guide face's both sides, smoke guide face is equipped with the boss toward the epirelief 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, air supply channel's air-out end and air jet intercommunication, air supply channel's air inlet end and fan subassembly's. 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

Range hood with rotary suction effect

Technical Field

The utility model relates to a kitchen electricity technical field especially relates to a range hood with spin-suction effect.

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 range hood with spin-on effect, 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 range hood with rotary suction effect comprises a fume collecting hood and a fan component, wherein a smoke suction part for discharging smoke outwards is arranged at the position above the fume collecting hood, the fan component is arranged at the top of the smoke collecting cover, an air inlet of the fan component is communicated with the smoke sucking part, the smoke guide part is 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, 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 air outlet of the fan assembly.

In some embodiments, the end of the swirling surface is bent outward to form a plane, and the plane is inclined backward from top to bottom.

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 front end of the smoke collecting hood side wall.

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

In some embodiments, a vent is opened at an air outlet of the fan assembly, and the vent is communicated with the air supply channel.

In some embodiments, the fan assembly has a volute, and the vent opens on a side wall of the volute outlet.

In some embodiments, the air supply channel includes a connecting pipe, a first air supply pipe and a second air supply pipe, wherein one end of the connecting pipe is communicated with the vent, the other end of the connecting pipe is respectively communicated with the air inlet end of the first air supply pipe and the air inlet end of 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, the connecting pipe is bent inward at a position connected to the ventilation opening to form a mounting portion, and the mounting portion is embedded in the ventilation opening to mount the connecting pipe at the position of the ventilation opening.

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

1. the utility model discloses a 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 an exploded schematic view of a part of the structure of the range hood in the embodiment of the present invention;

fig. 4 is a sectional view 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 present embodiment provides a range hood with a rotary suction effect, which includes a smoke collecting hood 1 and a fan assembly 2, wherein the top of the smoke collecting hood 1 is provided with a smoke absorbing part 3 for discharging smoke outwards, the fan component 2 is arranged in the smoke collecting hood 1, the air inlet of the fan component 2 is communicated with the smoke absorbing part 3, it is characterized by also comprising a smoke guide part 4 arranged at the lower part of the smoking part 3, a smoke guide surface 41 arranged right in front of the smoke guide part 4, swirl surfaces 42 are respectively arranged on two sides of the smoke guide surface 41 in an outward extending way to cause the airflow passing through the swirl surfaces to generate swirl, a lug boss 43 is convexly arranged on the smoke guide surface 41 in the vertical direction, a plurality of air nozzles 44 are respectively arranged on two opposite side walls of the boss 43, an air supply channel 5 is arranged in the exhaust fume collecting hood 1, the air outlet end of the air supply channel 5 is communicated with the air nozzles 44, and the air inlet end of the air supply channel 5 is communicated with the air outlet of the fan component 2 to convey air flow in the air supply channel 5.

In the embodiment, the range hood is provided with a smoke suction part 3 at the top position of the smoke collecting hood 1, a smoke guide part 4 is arranged below the smoke collecting hood 1, the air outlet of the fan component 2 is communicated with the air outlets 44 at the two sides of the boss 43 through the air supply channel 5, so that partial gas exhausted by the fan component 2 of the range hood is blown out from the gas nozzles 44 to the two sides of the range hood after passing through the air supply channel 5, the gas flow blown out from the gas nozzles 44 on the two sides of the boss 43 sequentially passes through the smoke guide surface 41 and the rotational flow surface 42 and then turns to rotate to form an air curtain, because of the gas viscosity effect, the rotational flow of the smoke guide part 4 is matched with the suction force of the fan component 2 of the range hood, thereby forming unique spiral airflow, therefore, the range hood forms a rotary suction gathering effect before oil smoke gas diffusion, has a simple structure, can prevent oil smoke from diffusing and escaping, and achieves the effect of high-efficiency smoke gathering.

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 convexly arranged outwards in the vertical direction at the middle position of the smoke guide surface 41, the smoke collecting hood 1 is divided into two parts which are bilaterally symmetrical, the boss 43 is provided with two opposite side surfaces, the two side surfaces are convexly arranged outwards 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, so that 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 to communicate the air outlet end of the air supply channel 5 with the air nozzles 44, the air inlet end of the air supply channel 5 is communicated with the air outlet of the fan assembly 2, when the air supply device is started to work to guide the external gas into, 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 front end 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.

Furthermore, a vent 21 is formed in the air outlet of the fan assembly 2, the vent 21 is communicated with the air supply channel 5, the design is reasonable and ingenious, and air flow discharged by the fan assembly 2 can be guided into the air supply channel 5.

Preferably, the fan assembly 2 has a volute 22, and the vent 21 is opened on the side wall of the air outlet of the volute 22, which is simple in structure and reasonable in design.

Specifically, air supply channel 5 includes connecting pipe 51, first blast pipe 52 and second blast pipe 53, wherein connecting pipe 51 one end and vent 21 intercommunication, the other end respectively with the air inlet end of first blast pipe 52, the air inlet end intercommunication of second blast pipe 53, the air-out end of first blast pipe 52 and the air jet 44 of boss 43 one side wherein intercommunication, the air-out end of second blast pipe 53 and the air jet 44 of the other side of boss 43 intercommunication, its simple structure, reasonable in design can be convenient for assemble air supply channel 5.

In particular, the connection pipe 51 is bent inward at a position connected to the vent 21 to form a mounting portion, and the mounting portion is fitted into the vent 21 to mount the connection pipe 51 at the position of the vent 21.

In this embodiment, the fan assembly 2 has a volute 22, an impeller and a motor, the volute 22 is installed above the smoke collecting hood 1, the motor is disposed in the volute 22, an output end of the motor is connected to the impeller, the impeller is driven by the motor to rotate to guide external oil smoke into the smoke collecting hood 1 through a smoke inlet of the smoke sucking part 3, the oil smoke enters the volute 22 through an air inlet of the volute 22, the oil smoke entering the volute 22 flows into a smoke exhaust pipe through an air outlet of the volute 22, a ventilation opening 21 is formed at an air outlet of the volute 22, a connecting pipe 51 is bent at a position connected to the ventilation opening 21 to form an installation part (not shown in the figure) so that the connecting pipe 51 is installed at the position of the ventilation opening 21 after passing through the ventilation opening 21, one end of the connecting pipe 51 of the air supply passage 5 is communicated with the ventilation opening 21, and the other end of the connecting pipe, The air inlet end of the second blast pipe 53 is communicated, the air outlet end of the first blast pipe 52 is communicated with the air jet 44 on the left side wall of the boss 43, the air outlet end of the second blast pipe 53 is communicated with the air jet 44 on the right side wall of the boss 43, when the fan of the fan component 2 operates, the exhaust air flow is guided into the connecting pipe 51 through the vent 21, the air entering the connecting pipe 51 flows into the first blast pipe 52 and the second blast pipe 53 respectively, thereby part of the air exhausted by the fan component 2 of the range hood per se is blown out from the air jet 44 on the two sides of the boss 43 to the two sides of the smoke collecting hood 1 through the air supply channel 5, due to the wall attachment effect, the air flow blown out from the air jet 44 on the two sides of the boss 43 passes through the rotational flow surfaces 42 on the two sides of the smoke collecting hood 1 to turn the air flow, thereby forming unique helical air flow in cooperation with the suction force of the range hood per se, forming the rotational suction, the effect of high-efficient smoking that gathers together is reached.

In this embodiment, when a user cooks, the range hood is started to work, the fan assembly 2 is started, the fan assembly 2 generates an upward suction force to drive an external airflow and oil smoke to flow into the smoking part 3 of the smoke collecting hood 1 from the smoke inlet, and then to be discharged out of the room from the smoke exhaust pipeline of the range hood after passing through the fan assembly 2, meanwhile, a part of the gas discharged outward by the fan assembly 2 is blown out from the air outlets 44 on both sides of the boss 43 toward both sides of the smoke collecting hood 1 through the air supply channel 5, due to the gas viscosity effect, the gas ejected from the air outlets 44 on both sides of the boss 43 forms air curtains on both sides of the smoke collecting hood 1 and makes a turning rotation to generate gas when flowing through the swirling surface 42, and the fan assembly 2 forms a spiral upward airflow under the cooperation of the upward suction force generated at the position of the smoking part 3, so that the oil smoke is upwards and swirls upwards before diffusion, and prevents, improve the rotary smoking effect.

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 (8)

1. The utility model provides a range hood with rotary suction effect, 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 the air intake of 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 and be provided with whirl surface (42) so that the air current that flows 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), the air-out end of air supply passageway (5) with jet orifice (44) intercommunication, the air inlet end of air supply passageway (5) with the air outlet intercommunication of fan subassembly (2) is in the past carry the air current in air supply passageway (5).

2. The range hood with the cyclone effect according to claim 1, wherein the end of the cyclone 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 range hood with a cyclone effect according to claim 1, wherein any horizontal section of the cyclone surface (42) is a quarter of a circular arc, and one end of the cyclone surface (42) is tangent to the smoke guide surface (41) and the other end is tangent to the front end of the side wall of the smoke collecting hood (1).

4. The range hood with the cyclone effect according to claim 3, wherein the diameter of the circular arc of the cyclone surface (42) is gradually increased from bottom to top.

5. The range hood with the rotary suction effect according to claim 1, wherein a vent (21) is formed at an air outlet of the fan assembly (2), and the vent (21) is communicated with the air supply channel (5).

6. The range hood with the rotary suction effect according to claim 5, wherein the fan assembly (2) is provided with a volute (22), and the ventilation opening (21) is opened on a side wall of an air outlet of the volute (22).

7. The range hood with the cyclone effect according to claim 5, wherein the air supply channel (5) comprises a connecting pipe (51), a first air supply pipe (52) and a second air supply pipe (53), wherein one end of the connecting pipe (51) is communicated with the ventilation opening (21), the other end of the connecting pipe is respectively communicated with the air inlet end of the first air supply pipe (52) and the air inlet end of the second air supply pipe (53), the air outlet end of the first air supply pipe (52) 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 (53) is communicated with the air outlet (44) on the other side of the boss (43).

8. The range hood with the rotary suction effect according to claim 7, wherein the connecting pipe (51) is bent inward at a connecting position with the ventilation opening (21) to form a mounting portion, and the mounting portion is embedded into the ventilation opening (21) to mount the connecting pipe (51) at the position of the ventilation opening (21).

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