Intelligent extractor hood

Abstract

The application relates to the technical field of household electrical appliances, and particularly discloses an intelligent range hood, which comprises a range hood body, a hydraulic rod and a cover plate. An air inlet is arranged in the range hood body, a top of the range hood body is communicated with an exhaust pipe, the exhaust pipe is communicated with the air inlet, a light-sensing control display is arranged on the top of the range hood body, a supporting frame is fixedly arranged on the range hood body, the hydraulic rod is fixed to the top of the supporting frame, a fish spear is fixedly connected to the bottom of the hydraulic rod, a top door is rotatably arranged at the inner end of a top door opening arranged on the top of the range hood body, a first oil fume infrared probe is arranged on the supporting frame, an obliquely downward side door opening is arranged on the side of the range hood body, a side door is rotatably arranged on the side door opening, and a pulling piece is rotatably arranged at the two ends of the range hood body and connected with the top door and the side door. The application has the advantages of simple structure, high cleaning capacity, large area, high automation degree and convenience for popularization and implementation.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, in particular to an intelligent range hood. Background Art

[0002] With the improvement of living standards and the accelerated pace of life, people pay more and more attention to the quality of their home life. The range hood, also known as the oil hood, is a kitchen appliance that purifies the kitchen environment. It is installed above the stove in the kitchen. It can quickly extract the waste burned by the stove and the oil smoke generated during the cooking process that is harmful to the human body and discharge it outdoors, reducing pollution, purifying the air, and having anti-toxic and explosion-proof safety protection functions.

[0003] The prior art discloses a range hood comprising a range hood body and a gas stove. A first fan and a second fan are disposed within the range hood body, from left to right. A switch button is fixedly connected to the left side of the top of the range hood body, a single-chip microcomputer is fixedly connected to the inner cavity of the range hood body, a warning light is fixedly connected to the right side of the top front of the range hood body, and a first smoke sensor is fixedly connected to the left side of the bottom front of the range hood body. Fumes often float to the upper part of a house, and range hoods cannot clean the fumes in this upper part, making them difficult to implement. Summary of the Invention

[0004] The object of the present invention is to provide an intelligent range hood to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An intelligent range hood includes a range hood body, a hydraulic rod, and a cover. An air inlet is located within the range hood body. An exhaust pipe is connected to the top of the range hood body, which is in communication with the air inlet. A fan is installed within the air inlet. The fan draws air carrying oil smoke into the air inlet and ultimately out of the exhaust pipe. This is prior art and will not be described here. A light-sensing control display is located near the top of the range hood body and is electrically connected to the fan. Controlling the fan through the light-sensing control display avoids the issue of unresponsive control caused by oily buttons on the glass panel of existing range hoods.

[0007] The proximal bottom of the range hood body is rotatably connected to the bottom of the cover plate, and the cover plate can be rotated on the range hood body. The cover plate can cover the range hood body when it is rotated. When the cover plate is closed, there is a gap between the cover plate and the range hood body, and air can enter the interior of the range hood body through the gap between the cover plate and the range hood body.

[0008] A support frame is fixed to the range hood body. The lower surface of the support frame is fixedly connected to the top of a hydraulic rod. A harpoon is fixedly connected to the bottom of the hydraulic rod. A top door is opened on both sides of the hydraulic rod at the top of the range hood body. The inner end of the top door is pivoted to form a top-opening door. A first oil fume infrared sensor is installed on the support frame and is electrically connected to the central processing unit and the light-sensing control display. When the first oil fume infrared sensor senses oil fume, the hydraulic rod extends, causing the harpoon to descend. The harpoon's lowering causes the top door to rotate and tilt, allowing oil fume above the range hood body to enter the range hood through the top door. The detection threshold can be set using the light-sensing control display.

[0009] As a further solution of the present invention: a side door opening inclined downward is opened on the side of the range hood body, a side door is rotatably provided on the side door opening, and the side door opening can cover the side door opening when closed, and tension members are rotatably provided at both ends of the range hood body, and the tension members connect the top door opening and the side door opening.

[0010] As a further solution of the present invention: a layer of nano antifouling coating is applied on the light-sensitive control display to improve the antifouling level and further enhance the sensitivity of the light-sensitive control display.

[0011] As a further solution of the present invention: a filter is provided at the air inlet, which can filter the air and prevent debris from entering the interior of the air inlet.

[0012] As a further embodiment of the present invention, the cover can be made of stainless steel. A positioning member is fixedly mounted on the upper end of the range hood body. A magnet is fixedly mounted on the positioning member. When the cover is closed, the top of the cover contacts the positioning member, thereby limiting the cover. The magnet attracts the cover, preventing it from rotating downward.

[0013] As a further solution of the present invention, organic glass is provided on the cover plate, and the provision of the organic glass facilitates the cleaning of the cover plate and makes it more beautiful.

[0014] As a further solution of the present invention: the support frame is an inverted L-shaped structure.

[0015] As a further solution of the present invention: the harpoon includes a fixed cross bar and a rotating rod, the middle position of the fixed cross bar is fixedly connected to the bottom of the hydraulic rod, the two ends of the fixed cross bar are rotatably connected to the top of the rotating rod, and the bottom of the rotating rod is rotatably connected to the inside of the top-opening door.

[0016] As a further embodiment of the present invention, the tension member includes a fixed shaft and a rotating roller. The fixed shaft is fixedly connected to the interior of the range hood body, and the fixed shaft is rotatably connected to the rotating roller. Two pull ropes are wound around the rotating roller, one end of which is fixedly connected to the rotating roller, and the other end of which is connected to the top door and the side door, respectively. A torsion spring is provided between the rotating roller and the fixed shaft. When the top door is opened, the pull ropes pull the rotating roller to rotate, thereby extending the pull ropes. The side door opens under the action of gravity. Oil smoke enters the interior of the range hood body through the side door. When the top door closes, the rotating roller rotates under the action of the torsion spring, causing the pull ropes to be wound around the rotating roller, and the pull ropes pull the side door closed.

[0017] As a further embodiment of the present invention, an alarm is provided on the support frame and electrically connected to the central processing unit. When oil smoke appears, the alarm is activated and sounds an alarm, alerting the user to check for the cause of excessive oil smoke. A second oil smoke infrared sensor is provided on the top inner portion of the range hood body. When the program is activated, the second oil smoke infrared sensor detects the temperature inside the pot during use. If the temperature inside the pot is too high, the alarm sounds an alarm to alert the user.

[0018] Compared with the prior art, the present invention has the following beneficial effects: when the first oil fume infrared probe senses oil fume, the hydraulic rod extends, causing the harpoon to descend. The descending harpoon causes the top door to rotate and tilt up, thereby facilitating the entry of oil fume from above the range hood body into the interior of the range hood body through the top door opening. When the top door opens, the pull rope pulls the rotating roller to rotate, thereby extending the pull rope. The side door opens under the action of gravity. Oil fume enters the interior of the range hood body through the side door opening. When the oil fume is to be cleared, the hydraulic rod shortens, causing the harpoon to rise, pulling the top door to rotate and close the top door opening. When the top door is closed, the rotating roller rotates under the action of the torsion spring, causing the pull rope to be wrapped around the rotating roller, and the pull rope pulls the side door closed. In this way, oil fume from the top and sides of the range hood body can be cleared. Advantages of the invention: simple structure, strong cleaning capacity, large area, high degree of automation, and easy promotion and implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the first state structure of an intelligent range hood.

[0020] Figure 2 This is a schematic diagram of the second state structure of an intelligent range hood.

[0021] Figure 3 This is a schematic diagram of the main structure of an intelligent range hood.

[0022] Figure 4 This is a structural diagram of a harpoon in an intelligent range hood.

[0023] Figure 5This is a structural diagram of a tension member in an intelligent range hood.

[0024] In the figure, there are a range hood body 1, a side door 2, a top door 3, a harpoon 4, an exhaust pipe 5, a hydraulic rod 6, a first oil fume infrared probe 7, an alarm 8, a support frame 9, a light-sensing control display 10, a filter 11, a cover 12, an air inlet 13, organic glass 14, a side door 15, a top door 16, a positioning piece 17, a magnet 18, a fixed cross bar 19, a rotating rod 20, a fixed shaft 21, a torsion spring 22, a pull rope 23, a rotating roller 24, and a second oil fume infrared probe 25. DETAILED DESCRIPTION

[0025] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the invention is now described with reference to the accompanying drawings.

[0026] Example 1

[0027] See also Figure 1-5 , an intelligent range hood includes a range hood body 1, a hydraulic rod 6 and a cover plate 12. An air inlet 13 is provided inside the range hood body 1, and an exhaust pipe 5 is connected to the top of the range hood body 1. The exhaust pipe 5 is connected to the air inlet 13, and a fan is installed inside the air inlet 13. Under the action of the fan, air carries oil smoke into the interior of the air inlet 13 and is finally discharged from the exhaust pipe 5. This is a prior art and will not be described here. A light-sensing control display 10 is provided at the proximal top of the range hood body 1, and the light-sensing control display 10 is electrically connected to the fan. The fan is controlled by the light-sensing control display 10, thereby avoiding the problem of insensitive operation after the buttons on the glass panel of the existing range hood are stained with oil. A layer of nano-antifouling coating is coated on the light-sensing control display 10 to improve the anti-fouling level and further improve the sensitivity of the light-sensing control display 10. A filter 11 is provided at the air inlet 13 to filter the air and prevent debris from entering the air inlet 13.

[0028] The proximal bottom of the range hood body 1 is rotatably connected to the bottom of the cover 12. The cover 12 can rotate on the range hood body 1, covering the range hood body 1. When the cover 12 is closed, a gap exists between the cover 12 and the range hood body 1, allowing air to enter the interior of the range hood body 1 through the gap between the cover 12 and the range hood body 1. The cover 12 can be made of stainless steel. A positioning member 17 is fixedly installed inside the upper end of the range hood body 1. A magnet 18 is fixedly installed on the positioning member 17. When the cover 12 is closed, the top of the cover 12 contacts the positioning member 17, thereby limiting the position of the cover 12. The magnet 18 attracts the cover 12, preventing it from rotating downward. The cover 12 is provided with organic glass 14, which facilitates cleaning and improves the appearance of the cover 12.

[0029] A support frame 9 is fixedly mounted on the range hood body 1. This support frame 9 has an inverted L-shaped structure. The lower surface of the top of the support frame 9 is fixedly connected to the top of a hydraulic rod 6. A harpoon 4 is fixedly attached to the bottom of the hydraulic rod 6. Top openings 16 are defined on either side of the hydraulic rod 6 at the top of the range hood body 1. A top-opening door 3 is pivotally mounted within the inner end of the top opening 16. A first oil fume infrared probe 7 is mounted on the support frame 9 and is electrically connected to the central processing unit and a light-sensing control display 10. When the first oil fume infrared probe 7 senses oil fume, the hydraulic rod 6 extends, causing the harpoon 4 to descend. This lowering of the harpoon 4 causes the top-opening door 3 to pivot and tilt upward, allowing oil fume from above the range hood body 1 to enter the interior of the range hood body 1 through the top opening 16. The light-sensing control display 10 can be used to set a detection threshold. The harpoon 4 includes a fixed cross bar 19 and a rotating rod 20. The middle position of the fixed cross bar 19 is fixedly connected to the bottom of the hydraulic rod 6. The two ends of the fixed cross bar 19 are rotatably connected to the top of the rotating rod 20. The bottom of the rotating rod 20 is rotatably connected to the inside of the top-opening door 3.

[0030] A downward-sloping side door 15 is provided on the side of the range hood body 1. A side door 2 is pivotally mounted on the side door 15, which closes to cover the side door 15. Tension members pivotally connect the top door 3 at both ends of the range hood body 1. The tension members 3 comprise a fixed shaft 21 and a rotating roller 24. The fixed shaft 21 is fixedly connected to the interior of the range hood body 1. The fixed shaft 21 pivotally connects to the rotating roller 24, which is wrapped with two pull cords 23. One end of the pull cords 23 is fixedly connected to the rotating roller 24, while the other end is connected to the top door 3 and the side door 2, respectively. A torsion spring 22 is interposed between the rotating roller 24 and the fixed shaft 21. When the top door 3 opens, the pull cords 23 pull the rotating roller 24, causing the pull cords 23 to extend. The side door 2 opens under the force of gravity, allowing oil smoke to enter the range hood body 1 through the side door 15. The top-opening door 3 is closed, and under the action of the torsion spring 22, the rotating roller 24 rotates, so that the pull rope 23 is wound around the rotating roller 24, and the pull rope 23 pulls the side-opening door 2 to close.

[0031] The working principle of the present invention is as follows: when the first oil fume infrared probe 7 senses oil fume, the hydraulic rod 6 extends, causing the harpoon 4 to descend. The descent of the harpoon 4 causes the top door 3 to rotate and tilt, thereby facilitating the oil fume above the range hood main body 1 to enter the interior of the range hood main body 1 through the top door 16. When the top door 3 opens, the pull rope 23 pulls the rotating roller 24 to rotate, thereby extending the pull rope 23. The side door 2 opens under the action of gravity. Oil fume enters the interior of the range hood main body 1 through the side door 15. When the oil fume is cleared, the hydraulic rod 6 shortens, causing the harpoon 4 to rise, pulling the top door 3 to rotate and close the top door 16. When the top door 3 is closed, the rotating roller 24 rotates under the action of the torsion spring 22, causing the pull rope 23 to be wound around the rotating roller 24, and the pull rope 23 pulls the side door 2 closed.

[0032] Example 2

[0033] Based on Example 1, an alarm 8 is provided on the support frame 9 and is electrically connected to the central processing unit. When oil smoke appears, the alarm 8 activates and sounds an alarm, alerting the user to check for the cause of excessive oil smoke. A second oil smoke infrared sensor 25 is provided on the top inner portion of the range hood body 1. When the program is activated, the second oil smoke infrared sensor 25 detects the temperature inside the pot during use. If the temperature inside the pot is too high, the alarm 8 sounds an alarm to alert the user.

[0034] The above-described embodiments merely represent preferred embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make various modifications, improvements, and substitutions without departing from the inventive concept, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. An intelligent range hood, comprising a range hood body (1), a hydraulic rod (6) and a cover plate (12), wherein an air inlet (13) is provided inside the range hood body (1), an exhaust pipe (5) is connected to the top, and the exhaust pipe (5) is connected to the air inlet (13), characterized in that: A light sensing control display (10) is provided at the proximal top of the range hood body (1), and the proximal bottom of the range hood body (1) is rotatably connected to the bottom of the cover plate (12); a support frame (9) is fixedly provided on the range hood body (1), a hydraulic rod (6) is fixed at the top of the support frame (9), a harpoon (4) is fixedly connected to the bottom of the hydraulic rod (6), and top doors (16) are provided on both sides of the hydraulic rod (6) at the top of the range hood body (1), and a top opening (16) is rotatably provided at the inner end of the top opening (16). The range hood main body (1) is provided with a top-opening door (3), a first oil smoke infrared probe (7) is provided on the support frame (9), and the first oil smoke infrared probe (7) is electrically connected to the central processing unit and the light sensing control display (10); a filter (11) is provided at the air inlet (13); a side door (15) inclined downward is provided on the side of the range hood main body (1), a side door (2) is rotatably provided on the side door (15), and tension members are rotatably provided at both ends of the range hood main body (1), and the tension members connect the top-opening door (3) and the side door (2).

2. The intelligent range hood according to claim 1, characterized in that: A layer of nano antifouling coating is coated on the light-sensing control display (10).

3. The intelligent range hood according to claim 1, characterized in that: The cover plate (12) is made of a stainless steel plate. A positioning member (17) is fixedly provided inside the upper end of the range hood body (1), and a magnet (18) is fixedly provided on the positioning member (17).

4. The intelligent range hood according to claim 1, characterized in that: Organic glass (14) is provided on the cover plate (12).

5. The intelligent range hood according to claim 1, characterized in that: The support frame (9) is an inverted L-shaped structure.

6. The intelligent range hood according to claim 1, characterized in that: The harpoon (4) comprises a fixed crossbar (19) and a rotating rod (20), wherein the middle position of the fixed crossbar (19) is fixedly connected to the bottom of the hydraulic rod (6), the two ends of the fixed crossbar (19) are rotatably connected to the top of the rotating rod (20), and the bottom of the rotating rod (20) is rotatably connected to the inside of the top-opening door (3).

7. The intelligent range hood according to claim 1, characterized in that: The tension member (3) comprises a fixed shaft (21) and a rotating roller (24); the fixed shaft (21) is fixedly connected to the interior of the range hood body (1); the fixed shaft (21) is rotatably connected to the rotating roller (24); two pull ropes (23) are wound around the rotating roller (24); one end of the pull rope (23) is fixedly connected to the rotating roller (24); the other end of the pull rope (23) is respectively connected to the top-opening door (3) and the side-opening door (2); a torsion spring (22) is provided between the rotating roller (24) and the fixed shaft (21).

8. The intelligent range hood according to claim 1, characterized in that: An alarm (8) is provided on the support frame (9), and the alarm (8) is electrically connected to the central processing unit. A second oil smoke infrared probe (25) is provided on the inner top of the range hood body (1).

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