CN212481409U - Rotary suction type range hood - Google Patents

Abstract

The utility model discloses a rotary-suction type range hood, which comprises a smoke collecting hood and a wind box component, wherein the smoke collecting hood is provided with a smoke inlet part and a smoke guide part positioned below the smoke inlet part, a first air supply device and a second air supply device are arranged in the fume collecting hood, a protruding structure which extends vertically and divides the fume guide surface into two parts, and a left air passage and a right air passage which are positioned at the left side and the right side of the fume guide surface and extend vertically are convexly arranged on the fume guide surface at the front of the fume guide part, two opposite side walls of the protruding structure are rotational flow surfaces used for enabling airflow flowing through the protruding structure to rotate, the left air passage and the right air passage are both provided with exhaust holes which are vertically arranged and are used for exhausting air towards the rotational flow surface, the smoke collecting hood is internally provided with a first ventilating pipeline and a second ventilating pipeline, has a simple structure, can prevent oil smoke from diffusing and escaping, and achieves the effect of collecting smoke efficiently.

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.

SUMMERY OF THE UTILITY MODEL

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 aims to provide a rotary suction formula range hood, its simple structure can prevent that the oil smoke from diffusing the escape, reaches the high efficiency and holds together the effect of smoking.

The above purpose is realized by the following technical scheme:

the utility model provides a rotary-suction type range hood, includes collection petticoat pipe and bellows subassembly, the collection petticoat pipe has into cigarette portion and is located advance the smoke guide portion of cigarette portion below, it is equipped with the outlet flue to advance cigarette portion top, bottom and is equipped with into the cigarette region, bellows subassembly set up in collection petticoat pipe top and with the outlet flue intercommunication be provided with first air supply arrangement and second air supply arrangement in the collection petticoat pipe the positive smoke guide face of smoke guide portion is protruding to be equipped with along vertical extension and will the outstanding structure that the smoke guide face divide into two and be located the left side air flue and the right side air flue of vertical extension are followed to the smoke guide face left and right sides, the relative both sides wall of outstanding structure is for being used for making the rotatory whirl face of the air current that flows through it left side air flue with all be provided with on the right side air flue along vertical arrangement and towards the exhaust hole that the whirl face was given vent gas be provided with first air pipe and second air conduit in the, the first air supply device is communicated with the left air passage through the first ventilating pipeline, and the second air supply device is communicated with the right air passage through the second ventilating pipeline.

In some embodiments, the protruding structure divides the smoke inlet area into two parts, the front surface of the protruding structure is an inclined surface inclined from top to bottom, and two sides of the front surface of the protruding structure are respectively connected with the smoke guide surface on the front surface of the smoke guide portion through the cyclone surfaces on two sides.

In some embodiments, the cyclone surface is an arc surface extending from the smoke guide surface on the front side of the smoke guide portion toward the front side of the protruding structure, any horizontal section of the arc surface is a quarter arc, one end of the arc is tangent to the smoke guide surface on the front side of the smoke guide portion, and the other end of the arc is tangent to the front end of the side wall of the protruding structure.

In some embodiments, the arc diameter of the vortex surface is linearly increased from bottom to top.

In some embodiments, the distance between the center of the vent hole and the smoke guide surface of the front face of the smoke guide portion is less than 20 mm.

In some embodiments, a first mounting hole and a second mounting hole are respectively arranged on two sides of the top of the smoke collecting hood, the first air supply device is arranged in the first mounting hole, the second air supply device is arranged in the second mounting hole, the first mounting hole is communicated with the left air passage through the first ventilating duct, and the second mounting hole is communicated with the right air passage through the second ventilating duct.

In some embodiments, the first air supply device comprises a first fan and a first air inlet cover, the first fan is arranged in the first mounting hole, and the first air inlet cover is arranged at the air inlet end of the first mounting hole;

the second air supply device comprises a second fan and a second air inlet cover, the second fan is arranged in the second mounting hole, and the second air inlet cover is arranged at the air inlet end of the second mounting hole.

In some embodiments, the first air supply device further comprises a first filter member disposed between the first air intake cover and the first fan;

the second air supply device further comprises a second filtering member, and the second filtering member is arranged between the second air inlet cover and the second fan.

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

1. the utility model discloses a rotary suction formula range hood, its simple structure can prevent that the oil smoke diffusion from escaping, reaches the high efficiency and gathers together the effect of smoking.

Drawings

Fig. 1 is a front view of a range hood in an embodiment of the present invention;

fig. 2 is a bottom view of the range hood in the embodiment of the present invention;

fig. 3 is a rear view of the range hood in the embodiment of the present invention;

fig. 4 is a partially exploded view of the range hood according to the embodiment of the present invention.

Detailed Description

The present invention is illustrated by the following examples, but the present invention is not limited to these examples. To the embodiment of the present invention, modify or replace some technical features, without departing from the spirit of the present invention, it should be covered in the technical solution scope of the present invention.

The first embodiment is as follows: as shown in fig. 1 to 4, the present embodiment provides a rotary suction type range hood, which includes a smoke collecting hood 1 and a wind box assembly 2, wherein the smoke collecting hood 1 has a smoke inlet 11 and a smoke guiding part 12 located below the smoke inlet 11, the smoke inlet 11 has a smoke outlet at the top and a smoke inlet area 110 at the bottom, the wind box assembly 2 is disposed at the top of the smoke collecting hood 1 and is communicated with the smoke outlet for sucking smoke oil and forming an upward suction force to a cyclone gas, a first air supply device 31 and a second air supply device 32 are disposed in the smoke collecting hood 1, a protruding structure 13 extending vertically and dividing the smoke guiding surface 120 into two parts is protruded from the smoke guiding surface 120 on the front of the smoke guiding part 12, and a left air flue 14 and a right air flue 15 extending vertically on the left and right sides of the smoke guiding surface 120, opposite side walls of the protruding structure 13 are air flues 130 for rotating an air flow flowing through the swirling flow, exhaust holes 121 disposed vertically and facing the swirling flow surface 130 are disposed on the left air flue 14 and the right air flue 15, the airflow ejected from the exhaust hole 121 turns and rotates after flowing along the smoke guide surface 120 to the rotational flow surface 130, a first ventilation duct 41 and a second ventilation duct 42 are arranged in the smoke collecting cover 1, the first air supply device 31 is communicated with the left air passage 14 through the first ventilation duct 41, and the second air supply device 32 is communicated with the right air passage 15 through the second ventilation duct 42.

The rotary suction type range hood of the embodiment has a simple structure, can prevent oil smoke from diffusing and escaping, and achieves the effect of high-efficiency gathering and smoking.

In this embodiment, the first ventilation duct 41 and the second ventilation duct 42 are formed by connecting several segments of hard tubes, but may also adopt other forms such as a hose and an adapter. The discharge holes 121 may be formed in other forms, such as a long hole, a polygonal hole, a star-shaped hole, etc., as long as they function to discharge air outward.

Specifically, through the first air supply device 31 and the second air supply device 32 arranged in the smoke collecting hood 1, the first air supply device 31 sprays outside air from the exhaust holes 121 on two sides of the smoke collecting hood 1 through the first ventilating duct 41 and the second air supply device 32 through the second ventilating duct 42, due to the air viscosity effect, after the high-speed exhaust air passes through the cyclone surface 130 in the area below the center of the smoke suction port of the smoke collecting hood 1, the air flow turns and rotates, the suction force of the range hood is matched, so that unique spiral air flow is formed, the rotary suction gathering effect can be formed before the oil smoke gas is diffused, and the efficient gathering smoking effect is achieved.

When the range hood works, the air box assembly 2, the first air supply device 31 and the second air supply device 32 are started, and the upward suction force generated by the air box assembly 2 drives external air flow and oil smoke to flow into the smoke inlet part 11 of the smoke collection cover 1 from the smoke inlet area 110 and then to be discharged outdoors from a smoke exhaust pipeline of the range hood after passing through the air box assembly 2. The first air supply device 31 sprays outside air from the exhaust holes 121 on two sides of the smoke collecting hood 1 through the first ventilation pipeline 41 and the second air supply device 32 through the second ventilation pipeline 42, due to the air viscosity effect, the air sprayed out from the exhaust holes 121 forms a side air curtain, oil smoke can be cut into different areas, peripheral air flow can be driven to flow together and generate radial force, the air flow forms cyclone air under the matching action of the cyclone surface 130, upward spiral air flow is formed under the matching of upward suction force generated by the air box component 2, so that the oil smoke is upwards sucked and gathered before diffusion, the oil smoke is prevented from being diffused and escaping, and the rotary smoking effect is improved.

Specifically, the smoke guide part 12 of the smoke collecting cover 1 is located at the rear side of the bottom surface of the smoke inlet 11 and the back surfaces of the smoke inlet 11 and the smoke guide part 12 are located at the same plane, so that the smoke inlet 11 and the smoke guide part 12 form a 7 shape, and the front side of the bottom surface of the smoke inlet 11 is used for preventing smoke from escaping upwards. The smoke inlet area 110 is disposed at the front side of the bottom surface of the smoke inlet 11 so that the airflow spirally upward flows into the smoke inlet 11 through the smoke inlet area 110. Preferably, the smoke inlet area 110 is formed by a plurality of smoke inlet holes, so that the smoke inlet area 110 can serve as an oil screen, on one hand, the oil-smoke separation effect can be achieved, on the other hand, the oil screen can be omitted, the assembly process is simplified, and the manufacturing cost is reduced.

Preferably, the protruding structure 13 divides the smoke inlet area 110 into two parts, the front 131 of the protruding structure 13 is an inclined plane inclined from top to bottom, and two sides of the front 131 of the protruding structure 13 are respectively connected with the smoke guide surface 120 on the front of the smoke guide part 12 through the cyclone surfaces 130 on two sides.

In addition, the smoke inlet area 110 is divided into two parts through the protruding structures 13, so that the smoke inlet areas 110 on the left side and the right side can respectively correspond to burners on the stove, the working states of the left air passage 14 and the right air passage 15 can be conveniently controlled according to the specific use conditions of the burners on the stove, and the energy is saved while the efficient rotary smoke suction effect is ensured.

Further, the swirling surface 130 is an arc surface extending from the smoke guide surface 120 on the front surface of the smoke guide portion 12 toward the front surface 131 of the protruding structure 13, any horizontal cross section of the arc surface is a quarter arc, one end of the arc is tangent to the smoke guide surface 120 on the front surface of the smoke guide portion 12, and the other end of the arc is tangent to the front end of the side wall of the protruding structure 13 in the front-rear direction. Its simple structure, reasonable in design, ingenious does benefit to and makes the air current form the whirl gaseous to form the ascending air current of spiral under the cooperation of the ascending suction that bellows subassembly 2 produced, thereby make the oil smoke upwards the spin-suction before the diffusion gather together, prevent that the oil smoke from diffusing the escape, improve rotatory smoking effect.

Furthermore, the diameter of the arc of the swirling surface 130 is linearly increased from bottom to top, so that under the matching action of the left air passage 14, the right air passage 15 and the swirling surface 130, the air flow forms a tornado effect to be enhanced, and the effect of absorbing and gathering oil smoke by swirling is enhanced.

In the present embodiment, the distance between the center of the exhaust hole 121 and the smoke guide surface 120 on the front surface of the smoke guide portion 12 is less than 20 mm. Therefore, the gas sprayed from the left air passage 14 and the right air passage 15 flows to the swirling surface 130 along the smoke guide surface 120 to form a wall attachment effect, which is beneficial to further accelerating the swirling gas and enhancing the rotary smoking effect.

Preferably, be provided with first mounting hole 16 and second mounting hole 17 respectively in collection petticoat pipe 1 top both sides, first air supply arrangement 31 sets up in first mounting hole 16, and second air supply arrangement 32 sets up in second mounting hole 17, and first mounting hole 16 passes through first air pipe 41 and left side air flue 14 intercommunication, second mounting hole 17 pass through second air pipe 42 and right side air flue 15 intercommunication, its simple structure, reasonable in design, ingenious, the installation and the fixing of first air supply arrangement 31, second air supply arrangement 32 of being convenient for from this.

More preferably, the first air supply device 31 includes a first fan 311 and a first air inlet cover 313, the first fan 311 is disposed in the first mounting hole 16, the first air inlet cover 313 is disposed at an air inlet end of the first mounting hole 16, the first air inlet cover 313 is provided with a plurality of air inlet holes for allowing external air to pass through, the first air inlet cover 313 is disposed at the air inlet end of the first mounting hole 16 and is flush with an outer end face of the first mounting hole 16, so that by additionally providing the first air inlet cover 313, external impurities can be prevented from entering the first mounting hole 16 and the first fan 311, further, the exhaust hole 121 can be prevented from being blocked by the external impurities, and the usability of the range hood is ensured;

second air supply arrangement 32 includes second fan 321 and second air inlet cover 322, second fan 321 sets up in second mounting hole 17, and second air inlet cover 322 sets up in the air inlet end of second mounting hole 17, be equipped with a plurality of inlet ports that supply the outside air to pass through on second air inlet cover 322, second air inlet cover 322 lid is located the air inlet end of second mounting hole 17 and is parallel and level mutually with the outer terminal surface of second mounting hole 17, so through addding second air inlet cover 322, can prevent that external impurity from entering into second mounting hole 17 and second fan 321 the inside, and then avoid external impurity to block up exhaust hole 121, guarantee range hood's performance.

In this embodiment, the first air supply device 31 further includes a first filtering component 312, the first filtering component 312 is disposed between the first air inlet cover 313 and the first fan 311, and the first filtering component 312 is used for filtering external impurities, so as to prevent the first air supply device 31, the first ventilation duct 41 and the left air duct 14 from being polluted by the external impurities after the range hood works for a long time, and further prevent the exhaust hole 121 from being blocked. Preferably, the first filtering component 312 is rectangular, and a plurality of filtering holes are formed on the top surface and the bottom surface of the first filtering component 312, so that double filtering can be formed, the filtering effect is improved, the first air supply device 31, the first ventilating duct 41 and the left air flue 14 are prevented from being polluted, and the usability of the range hood is further improved;

the second air supply device 32 further includes a second filter element 323, the second filter element 323 is disposed between the second air inlet cover 322 and the second fan 321, and the second filter element 323 is used for filtering external impurities, so as to prevent the range hood from polluting the second air supply device 32, the second ventilation pipeline 42 and the right side air passage 15 after long-time operation, and further prevent the exhaust hole 121 from being blocked. Preferably, the second filtering component 323 is rectangular, and a plurality of filtering holes are formed in the top surface and the bottom surface of the second filtering component 323, so that double filtering can be formed, the filtering effect is improved, further, the second air supply device 32, the second ventilation duct 42 and the right air passage 15 are prevented from being polluted, and the usability of the range hood is further improved.

When the range hood works, the air box assembly 2, the first air supply device 31 and the second air supply device 32 are started, the air box assembly 2 drives external gas to flow into the smoke inlet part 11 of the smoke collection cover 1 from the smoke inlet area 110, and the external gas is discharged outdoors from a smoke exhaust pipeline of the range hood after passing through the air box assembly 2. The first air blowing device 31 drives the external air to flow into the first ventilation duct 41 from the first air inlet cover 313 through the first filtering component 312, and is discharged outside through the exhaust hole 121 of the left air duct 14. The second air blowing device 32 drives the outside air to flow into the second ventilation duct 42 from the second air inlet cover 322 through the second filtering member 323, and is discharged outside through the exhaust hole 121 of the right air duct 15.

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. A rotary suction type range hood comprises a smoke collecting hood (1) and an air box assembly (2), wherein the smoke collecting hood (1) is provided with a smoke inlet part (11) and a smoke guide part (12) positioned below the smoke inlet part (11), the top of the smoke inlet part (11) is provided with a smoke outlet, the bottom of the smoke inlet part is provided with a smoke inlet area (110), the air box assembly (2) is arranged at the top of the smoke collecting hood (1) and communicated with the smoke outlet, the rotary suction type range hood is characterized in that a first air supply device (31) and a second air supply device (32) are arranged in the smoke collecting hood (1), a protruding structure (13) which extends vertically and divides the smoke guide surface (120) into two parts and a left air passage (14) and a right air passage (15) which are positioned at the left side and the right side of the smoke guide surface (120) and extend vertically are convexly arranged on the smoke guide surface (120), and two opposite side walls of the protruding structure (13) are flow surfaces (130) which are used for enabling airflow flowing through the protruding structure to rotate, the exhaust hole (121) that follow vertical arrangement and orientation whirling flow face (130) was given vent to anger all is provided with on left side air flue (14) with right side air flue (15) be provided with first air duct (41) and second air duct (42) in collection petticoat pipe (1), first air supply arrangement (31) pass through first air duct (41) with left side air flue (14) intercommunication, second air supply arrangement (32) pass through second air duct (42) with right side air flue (15) intercommunication.

2. The rotary suction type range hood according to claim 1, wherein the protruding structure (13) divides the smoke inlet area (110) into two parts, the front surface (131) of the protruding structure (13) is an inclined surface inclined from top to bottom, and two sides of the front surface (131) of the protruding structure (13) are respectively connected with the smoke guide surface (120) of the front surface of the smoke guide part (12) through the cyclone surfaces (130) at two sides.

3. The rotary suction type range hood according to claim 2, wherein the swirling surface (130) is a circular arc surface extending from the smoke guide surface (120) on the front surface of the smoke guide portion (12) to the front surface (131) of the protruding structure (13), and any horizontal cross section of the circular arc surface is a quarter circular arc, one end of the circular arc is tangent to the smoke guide surface (120) on the front surface of the smoke guide portion (12), and the other end of the circular arc is tangent to the front end of the side wall of the protruding structure (13).

4. The rotary-suction range hood according to claim 3, wherein the diameter of the circular arc of the swirling surface (130) is linearly increased from bottom to top.

5. The rotary suction type range hood according to any one of claims 1 to 4, wherein the distance between the center of the exhaust hole (121) and the smoke guide surface (120) on the front surface of the smoke guide part (12) is less than 20 mm.

6. The rotary suction type range hood according to any one of claims 1 to 4, wherein a first mounting hole (16) and a second mounting hole (17) are respectively formed at two sides of the top of the fume collecting hood (1), the first air supply device (31) is disposed in the first mounting hole (16), the second air supply device (32) is disposed in the second mounting hole (17), the first mounting hole (16) is communicated with the left air passage (14) through the first ventilation duct (41), and the second mounting hole (17) is communicated with the right air passage (15) through the second ventilation duct (42).

7. The rotary suction type range hood according to claim 6, wherein the first air supply device (31) comprises a first fan (311) and a first air inlet cover (313), the first fan (311) is disposed in the first mounting hole (16), and the first air inlet cover (313) is disposed at an air inlet end of the first mounting hole (16);

the second air supply device (32) comprises a second fan (321) and a second air inlet cover (322), the second fan (321) is arranged in the second mounting hole (17), and the second air inlet cover (322) is arranged at the air inlet end of the second mounting hole (17).

8. The rotary suction type range hood according to claim 7, wherein the first air supply device (31) further comprises a first filter member (312), the first filter member (312) is disposed between the first air inlet cover (313) and the first fan (311);

the second air supply device (32) further comprises a second filter member (323), and the second filter member (323) is arranged between the second air inlet cover (322) and the second fan (321).

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