Air vortex range hood with rotatable and contractile air supplement pipe

Abstract

The utility model discloses an air vortex range hood with a rotatable and contractile air supplement pipe, which relates to the technical field of kitchen equipment and comprises a range hood shell, an exhaust fume collecting hood arranged at the bottom of the range hood shell, a fume inlet arranged in the middle of the exhaust fume collecting hood, a fume exhaust system arranged at the top of the range hood shell, and an air supplement system arranged on the range hood shell. The air supplement system can form annular transverse airflow around the smoke inlet, the air supplement system is connected with a rotary contraction device, and the rotary contraction device can drive an air supplement port of the air supplement system to change between the range hood shell and the smoke collecting hood; according to the air vortex extractor hood with the air supplementing pipe capable of rotating and contracting, an air flow field similar to tornado is formed below the smoke inlet through mutual cooperation of the air supplementing system and the smoke exhaust system, so that the suction force of the position, close to a cooking bench, below the smoke inlet of the extractor hood is enhanced, oil smoke escape is reduced, the indoor air quality is improved, and human health is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen equipment, in particular to an air vortex range hood with a rotatable and contractible air supply duct. Background Art

[0002] Oil smoke is a substance floating in the air. Its movement is irregular. In an environment with flowing airflow, it will flow with the airflow.

[0003] The range hood uses its characteristics to generate suction force through the motor, thus forming an air flow path to draw away the fumes in the kitchen, thereby improving the kitchen environment and reducing harm to the human body.

[0004] However, when oil smoke is produced, the amount is large and will escape in all directions. The existing range hoods have insufficient suction power, and a small amount of oil smoke will still escape, thereby affecting the kitchen environment and damaging human health. Utility Model Content

[0005] The purpose of the utility model is to provide an air vortex range hood with a rotatable and retractable air supply duct. The air vortex range hood with a rotatable and retractable air supply duct forms a tornado-like wind flow field below the smoke inlet through the mutual cooperation of the air supply system and the smoke exhaust system, thereby enhancing the suction force below the smoke inlet of the range hood near the stove, reducing the escape of oil smoke, and further improving the indoor air quality to ensure human health.

[0006] The above-mentioned optimized structure of the utility model is achieved through the following technical solutions: an air vortex range hood with a rotatable and retractable air supply duct, comprising a range hood shell, a smoke collecting hood is provided at the bottom of the range hood shell, a smoke inlet is provided in the middle of the smoke collecting hood, a smoke exhaust system is provided at the top of the range hood shell, the range hood shell is provided with an air supply system, the air supply system can form an annular horizontal airflow around the smoke inlet, the air supply system is connected to a rotating and retracting device, and the rotating and retracting device can drive the air supply port of the air supply system to change between the range hood shell and the smoke collecting hood.

[0007] In some embodiments, the smoke exhaust system includes a smoke exhaust fan, which is disposed in the range hood housing. The smoke exhaust fan is connected to an exhaust duct. A smoke exhaust port is provided on the top of the range hood housing, and the exhaust duct runs through the smoke exhaust port.

[0008] In some embodiments, the air supply system includes an air supply fan, the bottom of which is connected to an air distribution box, the air distribution box is connected to at least four air supply ducts, and at least six air supply holes are provided on one side of the air supply duct, and the air flow blows from the multiple air supply holes toward the inner wall of the smoke hood.

[0009] In some embodiments, the plurality of air supply openings are arranged in three rows on the wall of the air supply duct.

[0010] In some embodiments, a hose is connected between the air distribution box and the plurality of air supply ducts.

[0011] In some embodiments, the rotating and contracting device includes an electric hinge, and the electric hinge is arranged on the inner bottom wall of the range hood housing. The air supply duct is arranged on the electric hinge and can drive the air supply duct to bend.

[0012] In some embodiments, the bending angle of the air supply duct is 90°.

[0013] In some embodiments, a filter is installed inside the smoke inlet.

[0014] In some embodiments, a control system is further provided in the smoke hood, and the control system is connected to the smoke exhaust system, the air supply system and the rotating and retracting device.

[0015] In summary, the utility model has the following beneficial effects:

[0016] The air vortex range hood with a rotatable and retractable air supply duct forms a tornado-like wind flow field below the smoke inlet through the cooperation of the air supply system and the smoke exhaust system, thereby enhancing the suction force below the smoke inlet of the range hood near the stove and reducing the escape of oil fume, thereby improving the indoor air quality and ensuring human health; at the same time, the air supply duct is driven by an electric hinge to rotate, expand and retract, and the expansion angle of the air supply duct can be adjusted, thereby adjusting the air outlet route of the air supply port to adapt to different actual needs and improve the oil fume extraction performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a side view of the utility model when it is not in operation;

[0019] Figure 3 It is a side view of the utility model when in operation;

[0020] Figure 4 It is a structural schematic diagram of an air supply duct of the utility model.

[0021] In the figure: 1. Exhaust duct; 2. Smoke exhaust port; 3. Air supply fan; 4. Smoke exhaust fan; 5. Air supply duct; 6. Filter; 7. Control system; 8. Range hood housing; 9. Smoke hood; 10. Smoke inlet; 11. Air supply hole; 12. Air distribution box; 13. Hose; 14. Electric hinge. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] refer to Figure 1-4 An air vortex range hood with a rotatable and retractable air supply duct comprises a range hood housing 8, a fume collecting hood 9 is installed at the bottom of the range hood housing 8, a fume inlet 10 is provided in the middle of the fume collecting hood 9, and a filter 6 is installed inside the fume inlet 10 to prevent pollutants from entering the fume exhaust system and the air supply system and affecting the two systems. A fume exhaust system is provided at the top of the range hood housing 8, and the fume exhaust system is connected to the fume inlet 10. The range hood housing 8 is provided with an air supply system, and the air supply system can form an annular lateral airflow around the fume inlet 10. At the same time, the fume exhaust system will inhale airflow from the fume inlet 10 when it is running. The fume exhaust system and the air supply system cooperate with each other, so that a tornado-like wind flow field is formed below the fume inlet 10, thereby enhancing the suction force below the range hood fume inlet 10 near the stove, reducing the escape of oil smoke, and thus improving the indoor air quality and ensuring human health.

[0024] The air supply system is connected to a rotating and contracting device, which can drive the air supply port of the air supply system to change between the range hood housing 8 and the smoke collecting hood 9; thereby changing the direction of the air flow of the air supply system, and then changing the rotation angle and intensity of the wind flow field, so that it can be adjusted according to different situations, suitable for different scenes, and increasing the scope of use of the utility model.

[0025] The smoke exhaust system includes a smoke exhaust fan 4, which is arranged in the range hood housing 8. The air inlet of the smoke exhaust fan 4 is connected to the smoke inlet 10 inside the smoke collecting hood 9. The smoke exhaust fan 4 is connected to the exhaust duct 1. A smoke exhaust port 2 is arranged on the top of the range hood housing 8. The exhaust duct 1 runs through the smoke exhaust port 2. The smoke at the smoke inlet 10 is discharged through the exhaust duct 1 by the smoke exhaust fan 4.

[0026] The air supply system includes an air supply fan 3, which is installed in the range hood housing 8. The air inlet of the air supply fan 3 is connected to the room, and the air outlet of the air supply fan 3 is connected to the air distribution box 12. The air distribution box 12 is connected to at least four air supply ducts 5. The air distribution box 12 and the multiple air supply ducts 5 are connected through a discharge hose 13, which can reduce the impact between the devices in the range hood housing 8; at least six air supply holes 11 are provided on one side of the air supply duct 5, and the multiple air supply holes 11 can be arranged in three rows. It is arranged on the wall of the air supply duct 5, and the air flow blows from multiple air supply holes 11 to the inner wall of the smoke hood 9; the air supply fan 3 sucks in the indoor air when it is running, and the air sucked in by the air supply fan 3 passes through the air outlet, the air distribution box 12, the hose 13 and the four air supply ducts 5 in turn to reach the air supply hole 11, and finally blows to the inner wall of the smoke hood 9, the air supply hole 11 keeps blowing air and the smoke exhaust fan 4 keeps running and sucking air, and cooperates with each other to form a wind flow field similar to a tornado around the smoke inlet 10.

[0027] The rotating and retracting device includes an electric hinge 14, which is arranged on the inner bottom wall of the range hood housing 8. An air supply duct 5 is provided on the electric hinge 14, which can drive the air supply duct 5 to bend. The bending angle of the air supply duct 5 can be 90°. The rotation of the electric hinge 14 can drive the air supply duct 5 to rotate down or up, thereby realizing the switching of the air supply duct 5 between the expanded state and the retracted state, and the angle between the air outlet route of the air supply duct 5 and the vertical line can be adjusted to meet different actual needs.

[0028] Specifically, when the electric hinge 14 drives the multiple air supply ducts 5 to rotate and descend, the multiple air supply ducts 5 rotate and extend out from the range hood housing 8. When the air supply ducts 5 have completed their descent, the air supply ducts 5 are in an expanded state and are in a straight shape as a whole; when the electric hinge 14 drives the multiple air supply ducts 5 to rotate and ascend, the multiple air supply ducts 5 rotate and retract into the range hood housing 8. At this time, the air supply ducts 5 are in a contracted state and are in an L shape as a whole.

[0029] In some embodiments, a control system 7 is also installed in the smoke hood 9, and the control system 7 is connected to the smoke exhaust system, the air supply system and the rotating contraction device; it can control the actions of the smoke exhaust system, the air supply system and the rotating contraction device to enhance the intelligence of the utility model; at the same time, it can realize the synchronous operation of multiple air supply ducts 5.

[0030] The specific working principle is as follows:

[0031] When the range hood is running, the four air supply ducts 5 inside the range hood housing 8 will rotate and extend from the range hood housing 8 under the control of the electric hinge 14. After the four air supply ducts 5 are extended, the exhaust fan 4 and the air supply fan 3 will start immediately. When the air provided by the air supply fan 3 reaches the air supply holes 11 on the four air supply ducts 5, the air supply holes 11 will continue to blow air to form a wind curtain around the smoke inlet 10, and the exhaust fan 4 will inhale air from the smoke inlet 10 when running; the exhaust fan 4 and the air supply holes 11 cooperate with each other to form a tornado-like wind flow field below the smoke inlet 10, enhance the suction force below the smoke inlet 10 of the range hood near the stove, reduce the escape of oil smoke, thereby improving the indoor air quality and protecting human health. At the same time, according to different actual needs, the rotation angle of the electric hinge 14 can be adjusted to change the air outlet route of the air supply hole 11, thereby achieving different suction forces and suction directions, and improving the oil smoke suction performance.

[0032] When the range hood stops running, the smoke exhaust fan 4 and the air supply fan 3 stop running immediately, and the air supply holes on the four air supply ducts stop blowing air immediately. At the same time, the electric hinge 14 controls the four air supply ducts 5 to rotate and rise to the inside of the range hood housing 8, so that the air supply ducts 5 are hidden in the range hood housing 8, thereby improving the appearance of the range hood when it is not in operation.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air vortex range hood with a rotatable and retractable air supply duct, comprising a range hood housing (8), a fume collecting hood (9) being provided at the bottom of the range hood housing (8), a fume collecting hood (9) being provided at the middle of the fume collecting hood (9), characterized in that: The top of the range hood housing (8) is provided with a smoke exhaust system, and the range hood housing (8) is provided with an air supply system, the air supply system can form an annular transverse airflow around the smoke inlet (10), and the air supply system is connected to a rotating contraction device, and the rotating contraction device can drive the air supply port of the air supply system to change between the range hood housing (8) and the smoke collecting hood (9).

2. The air vortex range hood with a rotatable and retractable air supply duct according to claim 1, characterized in that: The smoke exhaust system comprises a smoke exhaust fan (4), the smoke exhaust fan (4) is arranged in the range hood housing (8), the smoke exhaust fan (4) is connected to an exhaust duct (1), a smoke exhaust port (2) is arranged at the top of the range hood housing (8), and the exhaust duct (1) passes through the smoke exhaust port (2).

3. The air vortex range hood with a rotatable and retractable air supply duct according to claim 1, characterized in that: The air supply system comprises an air supply fan (3), the bottom of the air supply fan (3) is connected to an air distribution box (12), the air distribution box (12) is connected to at least four air supply ducts (5), and at least six air supply holes (11) are provided on one side of the air supply duct (5), and air flows from the multiple air supply holes (11) toward the inner wall of the smoke collecting hood (9).

4. The air vortex range hood with a rotatable and retractable air supply duct according to claim 3, characterized in that: The plurality of air supply openings (11) are arranged in three rows on the wall of the air supply duct (5).

5. The air vortex range hood with a rotatable and retractable air supply duct according to claim 3, characterized in that: A hose (13) is connected between the air distribution box (12) and the plurality of air supply ducts (5).

6. The air vortex range hood with a rotatable and retractable air supply duct according to claim 1, characterized in that: The rotating and retracting device comprises an electric hinge (14), wherein the electric hinge (14) is arranged on the inner bottom wall of the range hood housing (8), and the air supply duct (5) is arranged on the electric hinge (14), and can drive the air supply duct (5) to bend.

7. The air vortex range hood with a rotatable and retractable air supply duct according to claim 6, characterized in that: The bending angle of the air supply duct (5) is 90°.

8. The air vortex range hood with a rotatable and retractable air supply duct according to claim 1, characterized in that: A filter screen (6) is installed inside the smoke inlet (10).

9. The air vortex range hood with a rotatable and retractable air supply duct according to claim 1, characterized in that: A control system (7) is also provided in the smoke collecting hood (9), and the control system (7) is connected to the smoke exhaust system, the air supply system and the rotating and contracting device.

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