Range hood

Abstract

The utility model discloses a range hood which comprises a range hood main body, a movable baffle and an oil cup, the range hood main body is provided with an air collecting cavity and an oil dripping hole communicated with the air collecting cavity; the movable baffle is slidably connected to the range hood main body, and the movable baffle is used for closing the oil dripping hole when the range hood is started and opening the oil dripping hole when the range hood is stopped; the oil cup is connected to the range hood body, and an opening of a containing cavity of the oil cup faces the oil dripping hole and is used for receiving oil guided out through the oil dripping hole. When the range hood disclosed by the utility model is used for extracting oil smoke, the oil dripping hole is closed through the movable baffle, so that air flow can be prevented from entering the oil dripping hole, noise is reduced, user experience is improved, the air flow entering the air collecting cavity through the oil dripping hole can be prevented from blowing oil upwards, the oil is prevented from splashing in the air collecting cavity, and the service life of the oil collecting cavity is prolonged. And when the air suction opening is close to the oil dripping hole, oil splashed in the air collection cavity can be prevented from dripping out of the range hood through the air suction opening, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, and in particular to a range hood. Background Art

[0002] The range hood has an air collecting chamber. When the user is cooking, the oil smoke is sucked into the air collecting chamber by the air intake of the range hood and then exhausted by the exhaust fan. In the process of exhausting the oil smoke, the oil and water mixture in the oil smoke forms oil liquid which will accumulate in the air collecting chamber and on the volute of the exhaust fan. The oil liquid will eventually flow to the oil cup through the oil dripping hole to collect the oil liquid. The oil dripping hole is connected to the air collecting chamber. When the exhaust fan is running, the exhaust fan forms a negative pressure in the air collecting box. In addition to entering the air collecting chamber through the air intake, the external oil smoke can also enter the air collecting chamber through the oil dripping hole. When entering the air collecting chamber through the oil dripping hole, due to the small air inlet area of ​​the oil dripping hole, the air flow is likely to generate noise when passing through the oil dripping hole, affecting the user experience. In addition, the air flow entering the air collecting chamber through the oil dripping hole is likely to drive the oil liquid in the air collecting chamber upward, causing the oil liquid in the air collecting chamber to splash. Utility Model Content

[0003] The purpose of the present utility model is to provide a range hood, which is used to solve the above technical problems.

[0004] The utility model proposes a range hood, comprising a range hood body, a movable baffle and an oil cup; the range hood body has an air collecting chamber and an oil dripping hole connected to the air collecting chamber; the movable baffle is slidably connected to the range hood body, and the movable baffle is used to close the oil dripping hole when the range hood is started and to open the oil dripping hole when the range hood is turned off; the oil cup is connected to the range hood body, and the opening of the accommodating chamber of the oil cup faces the oil dripping hole, and is used to receive the oil discharged through the oil dripping hole.

[0005] According to one embodiment of the present invention, the range hood body has a top plate, the oil dripping hole is provided on the top plate and communicates with the air collecting chamber, the movable baffle is slidably connected to the top plate, and the oil cup is connected below the top plate.

[0006] According to one embodiment of the present utility model, an air suction port is also provided on the top plate, which is located in front of the oil dripping hole and is connected to the air collecting chamber. When the range hood is turned off, the movable baffle opens the oil dripping hole and closes the air suction port. When the range hood is started, the movable baffle moves backward, closes the oil dripping hole and opens the air suction port.

[0007] According to one embodiment of the present invention, an oil guide edge extends downward from the edge of the oil dripping hole, and the upper surface of the movable baffle is a stepped surface, and the height of the part used to block the oil dripping hole is lower than the height of the part used to block the air intake port.

[0008] According to one embodiment of the present invention, when the range hood is started, the downward projection of the rear edge of the movable baffle always falls into the accommodating cavity of the oil cup.

[0009] According to one embodiment of the present invention, a groove is provided on the top plate, the air intake and the oil dripping hole are arranged in the groove, the movable baffle is slidably connected in the groove, and the lower surface of the movable baffle is flush with the lower surface of the top plate except the groove.

[0010] According to one embodiment of the present invention, the range hood further comprises a driving assembly, wherein an output end of the driving assembly is connected to the movable baffle for driving the movable baffle to move forward and backward.

[0011] According to one embodiment of the present invention, a guide groove is provided on the top plate, and the output end of the driving component is connected to a connecting piece, one side of the connecting piece is connected to the output end of the driving component, and the other end passes through the guide groove and is connected to the movable baffle.

[0012] According to one embodiment of the present utility model, the driving assembly includes a reduction motor, a transmission gear, a rack and a slide. The reduction motor is arranged on the upper surface of the top plate, the transmission gear is connected to the output end of the reduction motor, the rack is engaged with the transmission gear, the slide is arranged on the upper surface of the top plate, the rack is slidably connected to the slide, and the connecting member is connected to the rack.

[0013] According to one embodiment of the present invention, the driving assembly further includes a slide bar, the slide bar is slidably connected in the slide seat, the rack is connected to the slide bar, and the connecting member is provided at the rear end of the slide bar.

[0014] Compared with the prior art, the range hood of this utility model has the following advantages:

[0015] The range hood of the present invention closes the oil dripping hole through the movable baffle when extracting range fumes, which can prevent airflow from entering the oil dripping hole, thereby reducing noise generation and improving user experience. It can also prevent the airflow entering the air collecting chamber through the oil dripping hole from blowing the oil upward, causing the oil to splash in the air collecting chamber. When the air suction port and the oil dripping hole are relatively close, the oil splashed in the air collecting chamber can be prevented from dripping to the outside of the range hood through the air suction port, thereby improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the range hood of the present utility model;

[0017] Figure 2 This is a structural diagram of another embodiment of the range hood of the present invention;

[0018] Figure 3 This is an exploded view of the range hood of the present invention from another direction;

[0019] Figure 4 This is a cross-sectional view of the structure of the range hood of the present invention;

[0020] Figure 5This is a schematic diagram of the structure of the range hood of the present invention after the oil cup is removed;

[0021] Figure 6 It is a structural diagram of the driving component in the utility model.

[0022] In the figure: 1. Range hood body, 11. Top plate, 111. Air inlet, 112. Oil drip hole, 113. Guide groove, 2. Movable baffle, 3. Oil cup, 4. Drive assembly, 41. Reducer motor, 42. Transmission gear, 43. Rack, 44. Slide, 45. Slide, 5. Connector.

[0023] The realization of the functions and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0028] The utility model discloses a range hood, such as Figures 1 to 4As shown, it includes a range hood body 1, a movable baffle 2 and an oil cup 3; the range hood body 1 has an air collecting chamber and an oil dripping hole 112 connected to the air collecting chamber; the movable baffle 2 is slidably connected to the range hood body 1, and the movable baffle 2 is used to close the oil dripping hole 112 when the range hood is started and open the oil dripping hole 112 when the range hood is turned off; the oil cup 3 is connected to the range hood body 1, and the opening of the accommodating cavity of the oil cup 3 faces the oil dripping hole 112, and is used to receive the oil discharged through the oil dripping hole 112.

[0029] In this embodiment, the range hood body 1 is provided with an air intake 111, and a smoke exhaust fan is installed within the air collection chamber. When the smoke exhaust fan is in operation, it creates a negative pressure at the air intake 111, drawing cooking fumes into the air collection chamber through the air intake 111 and ultimately being exhausted by the smoke exhaust fan. An oil cup 3 is mounted below the range hood body 1, specifically below the oil drip hole 112. During the exhaust process, the mixture of oil and water in the fumes accumulates in the air collection chamber and on the volute of the smoke exhaust fan, ultimately flowing through the oil drip hole 112 to the oil cup 3 for collection.

[0030] Since the oil drip hole 112 is connected to the air collecting chamber, and there is inevitably an installation gap between the oil cup 3 and the range hood body 1, when the range hood is started, if the oil drip hole 112 is not covered, negative pressure is easily formed at the oil drip hole 112, causing the external airflow to be sucked into the oil drip hole 112; since the air inlet area of ​​the oil drip hole 112 is small, the airflow passing through the oil drip hole 112 is likely to generate noise, affecting the user experience; and when the airflow enters the air collecting chamber through the oil drip hole 112, the airflow will carry the oil upward, causing the oil to splash in the air collecting chamber, and the splashed oil may also splash out from the air intake 111. To solve this problem, in the range hood of the present invention, the movable baffle 2 can move relative to the range hood body 1, that is, it can move relative to the oil drip hole 112 on the top plate 11, and the movable baffle 2 can open or close the oil drip hole 112 by sliding. When the range hood is started, the movable baffle 2 closes the oil drip hole 112. At this time, the movable baffle 2 moves to between the opening of the accommodating cavity of the oil cup 3 and the oil drip hole 112. In this way, when the smoke exhaust fan is started, the oil drip hole 112 is blocked and the air intake 111 is opened. While ensuring that oil smoke can enter the air collection cavity through the air intake 111, it can prevent airflow from entering the oil drip hole 112, thereby reducing noise generation. It can also prevent the airflow entering the air collection cavity through the oil drip hole 112 from blowing the oil upward, causing the oil to splash and drip from the air intake 111 to the outside of the range hood, thereby improving the user experience. When the range hood is turned off, the movable baffle 2 opens the oil drip hole 112, allowing the oil in the air collection cavity to flow into the oil cup 3 through the oil drip hole 112.

[0031] In the smoke machine of the present invention, Figures 1 to 4As shown, the range hood body 1 comprises a top plate 11, an oil drip hole 112 disposed on the top plate 11 and communicating with the air collection chamber. A movable baffle 2 is slidably connected to the top plate 11, and an oil cup 3 is attached below the top plate 11. The oil cup 3 is positioned below the oil drip hole 112, with the downward projection of the oil drip hole 112 always located within the opening of the oil cup 3's receiving chamber. This ensures that oil flowing out of the oil drip hole 112 flows promptly into the oil cup 3 under the action of gravity, improving its oil collection efficiency. Connecting the oil cup 3 below the top plate 11 makes it easier for the user to remove the oil cup 3, pour out the oil, and then reattach it to the top plate 11, making it easier to clean the oil cup 3.

[0032] In the smoke machine of the present invention, Figures 1 to 4 As shown, the top plate 11 is further provided with an air intake 111, which is located in front of the oil drip hole 112 and is in communication with the air collecting chamber. When the range hood is turned off, the movable baffle 2 opens the oil drip hole 112 and closes the air intake 111. When the range hood is started, the movable baffle 2 moves backward, closing the oil drip hole 112 and opening the air intake 111. The air intake 111 is located at the rear end of the top plate 11, relatively close to the wall, and vertically obliquely above the gas outlet of the stove. In this way, the oil smoke can flow toward the rear side of the top plate 11 before being sucked into the air intake 111, preventing the oil smoke from gathering directly above the user.

[0033] When the range hood is started, the movable baffle 2 opens the air intake port 111 while closing the oil drip hole 112, so that the oil smoke can be normally sucked into the air collecting chamber through the air intake port 111. In the process of the oil smoke flowing into the air collecting chamber through the air intake port 111, the oil liquid formed by the mixture of oil and water in the oil smoke will adhere to the air intake port 111. When the range hood is running, the smoke exhaust fan forms a negative pressure in the air collecting chamber, and the oil liquid adhering to the air intake port 111 will not drip downwards. When the range hood is turned off, the smoke exhaust fan stops running, and the movable baffle 2 closes the air intake port 111 while opening the oil drip hole 112. After the gravity of the oil liquid adhering to the air intake port 111 overcomes the adhesion force, it drips from the air intake port 111 and is received by the movable baffle 2, preventing the oil liquid at the air intake port 111 from dripping onto the stove or the user's cooking utensils, and preventing the oil liquid from dripping out of the air intake port 111 and falling onto the stove, affecting the user experience. Furthermore, closing the air intake 111 with the movable baffle 2 when the range hood is off prevents foreign matter such as insects from entering and affecting its internal components, thereby improving the stability of the range hood's internal structure. Closing the air intake 111 with the movable baffle 2 also enhances the range hood's overall appearance. The movable baffle 2 can switch between closing the oil drip hole 112 and closing the air intake 111 depending on the range hood's operating state, thereby increasing the effective utilization of the movable baffle 2. Because the oil drip hole 112 is located behind the air intake 111, after the oil cup 3 is attached to the top plate 11, it is positioned behind the air intake 111. As oil smoke flows into the air intake 111, the oil cup 3 does not interfere with the oil smoke entering the air collection chamber. As the movable baffle 2 closes the air intake 111, the downward projection of the rear edge of the movable baffle 2 falls into the receptacle of the oil cup 3, allowing oil dripping from the upper surface of the movable baffle 2 to drip into the oil cup 3.

[0034] In the smoke machine of the present invention, Figure 3 and Figure 4 As shown, an oil-guiding edge extends downward from the edge of the oil drip hole 112. The upper surface of the movable baffle 2 is a stepped surface, and the height of the portion that blocks the oil drip hole 112 is lower than the height of the portion that blocks the air intake 111. The oil-guiding edge is located on the side away from the oil drip hole 112, near the opening of the accommodating cavity of the oil cup 3. This edge guides the oil flowing through the oil drip hole 112, ensuring that the oil can fully flow into the oil cup 3 and preventing the oil from falling on the opening edge of the oil cup 3 and overflowing onto the outer surface of the oil cup 3. This improves the oil collection effect and ensures a neat overall appearance of the range hood. The movable baffle 2 includes a front plate portion and a rear plate portion. The front plate portion blocks the air intake 111, and the rear plate portion blocks the oil drip hole 112. The upper surface of the rear plate portion is lower than that of the front plate portion, providing a clear path for the oil-guiding edge, preventing it from obstructing the process of the movable baffle 2 closing the oil drip hole 112.

[0035] In the smoke machine of the present invention, Figure 3 and Figure 4As shown, when the range hood is started, the downward projection of the rear edge of the movable baffle 2 always falls into the accommodating cavity of the oil cup 3. In the illustrated embodiment, when the range hood is started, the movable baffle 2 moves backward to open the air intake 111, and when the range hood is shut down, the movable baffle 2 moves forward to close the air intake 111. It can be understood that whether the movable baffle 2 is in the position of opening or closing the oil dripping hole 112, the downward projection of the rear edge of the movable baffle 2 always lies within the opening area of ​​the oil cup 3. In this way, oil dripping onto the movable baffle 2 through the air intake 111 and the oil dripping hole 112 can flow along the upper surface of the movable baffle 2 toward its rear edge, and ultimately flow into the oil cup 3 from the rear edge of the movable baffle 2. This prevents oil dripping onto the movable baffle 2 from overflowing from other edges of the movable baffle 2, thereby reducing the impact on the cleanliness of the range hood surface and the cooking environment, and improving the performance of the range hood.

[0036] In the smoke machine of the present invention, Figure 5 As shown, a groove is provided on the top plate 11, and the air inlet 111 and the oil dripping hole 112 are provided in the groove. The movable baffle 2 is slidably connected in the groove, and the lower surface of the movable baffle 2 is flush with the lower surface of the portion of the top plate 11 excluding the groove. Providing the movable baffle 2 in the groove can prevent the movable baffle 2 from additionally increasing the overall height of the range hood, thereby reasonably controlling the overall size of the range hood and reducing the space occupied. The lower surface of the movable baffle 2 is flush with the lower surface of the portion of the top plate 11 excluding the groove. When the movable baffle 2 closes the air inlet 111, the lower surface of the sliding baffle 2 is in the same plane as the other portions of the top plate 11 excluding the groove. When looking up at the top plate 11, the top plate 11 is flat, thereby making the overall outer surface of the range hood more visually flat, thereby improving the overall appearance of the range hood.

[0037] In the smoke machine of the present invention, Figure 6 As shown, the range hood also includes a drive assembly 4, the output end of which is connected to the movable baffle 2, for driving the movable baffle 2 forward and backward. When the range hood is turned on, the control unit controls the operation of the drive assembly 4, thereby promptly driving the movable baffle 2 to open the air intake 111 and close the oil drip hole 112. When the range hood is turned off, the control unit controls the reverse operation of the drive assembly 4, thereby promptly driving the movable baffle 2 to close the air intake 111 and open the oil drip hole 112. This enables automatic actuation of the movable baffle 2, improving the convenience of use of the range hood.

[0038] In the smoke machine of the present invention, Figure 5As shown, a guide groove 113 is provided on the top plate 11. The output end of the drive assembly 4 is connected to the connector 5. One end of the connector 5 is connected to the output end of the drive assembly 4, and the other end passes through the guide groove 113 to connect with the movable baffle 2. The drive assembly 4 is installed above the top plate 11 and is connected to the connector 5. The guide groove 113 is used to allow the connector 5 to pass through the bottom of the top plate 11 and then connect with the movable baffle 2 located below the top plate 11. When the drive assembly 4 is started, the drive assembly 4 drives the connector 5 to slide within the guide groove 113, and the guide groove 113 drives the movable baffle 2 to move, thereby effectively driving the movable baffle 2. It can be understood that the length of the guide groove 113 along the front-to-back direction is greater than or equal to the maximum travel range of the movable baffle 2 to ensure that the movable baffle 2 can move into place.

[0039] In the smoke machine of the present invention, Figure 6 As shown, the drive assembly 4 includes a reduction motor 41, a transmission gear 42, a rack 43, and a slide 44. The reduction motor 41 is arranged on the upper surface of the top plate 11. The transmission gear 42 is connected to the output end of the reduction motor 41. The rack 43 is engaged with the transmission gear 42. The slide 44 is arranged on the upper surface of the top plate 11. The rack 43 is slidably connected to the slide 44. The connector 5 is connected to the rack 43. The reduction motor 41 refers to an integrated body of a reducer and a motor. The output speed of the reduction motor 41 can be adjusted according to actual needs. By controlling the output speed of the reduction motor 41, the movement speed of the movable baffle 2 can be controlled. The transmission gear 42 cooperates with the rack 43 to convert the rotation of the output end of the reduction motor 41 into the linear motion of the rack 43, so that the rack 43 drives the movable baffle 2 to perform linear motion through the connector 5. For example, when the output end of the reduction motor 41 rotates forward, it can drive the movable baffle 2 to move backward to open the air inlet 111. When the output end of the reduction motor 41 rotates reversely, it can drive the movable baffle 2 to move forward to close the air inlet 111. The slide 44 extends in the front-to-back direction and guides the linear movement of the rack 43, preventing the rack 43 from deviating from its movement trajectory. This prevents the movable baffle 2 from deviating from its movement trajectory, thereby ensuring the movement stability of the movable baffle 2.

[0040] In the smoke machine of the present invention, Figure 6 As shown, the drive assembly 4 further includes a slide bar 45, which is slidably connected to the slide seat 44. The rack 43 is connected to the slide bar 45, and the connector 5 is provided at the rear end of the slide bar 45. The slide bar 45 and the slide seat 44 are slidably engaged, which can increase the engagement area between the drive assembly 4 and the slide seat 44, thereby improving the engagement stability between the drive assembly 4 and the slide seat 44, thereby improving the stability of the guiding process of the movable baffle 2.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A range hood, characterized in that: include: A range hood body (1) having an air collecting chamber and an oil dripping hole (112) communicating with the air collecting chamber; A movable baffle (2) is slidably connected to the range hood body (1), the movable baffle (2) being used to close the oil dripping hole (112) when the range hood is started and to open the oil dripping hole (112) when the range hood is shut down; An oil cup (3) is connected to the range hood body (1), and the opening of the accommodating cavity of the oil cup (3) faces the oil dripping hole (112), and is used to receive the oil discharged through the oil dripping hole (112).

2. The range hood according to claim 1, characterized in that: The range hood body (1) has a top plate (11), the oil dripping hole (112) is provided on the top plate (11) and communicates with the air collecting chamber, the movable baffle (2) is slidably connected to the top plate (11), and the oil cup (3) is connected below the top plate (11).

3. The range hood according to claim 2, characterized in that: The top plate (11) is further provided with an air suction port (111), which is located in front of the oil dripping hole (112). The air suction port (111) is communicated with the air collecting chamber. When the range hood is turned off, the movable baffle (2) opens the oil dripping hole (112) and closes the air suction port (111). When the range hood is started, the movable baffle (2) moves backward, closes the oil dripping hole (112) and opens the air suction port (111).

4. The range hood according to claim 3, characterized in that: An oil guide edge extends downward from the edge of the oil drip hole (112), and the upper surface of the movable baffle (2) is a stepped surface, the height of the portion thereof used to cover the oil drip hole (112) being lower than the height of the portion thereof used to cover the air inlet (111).

5. The range hood according to claim 1, characterized in that: When the range hood is started, the downward projection of the rear edge of the movable baffle (2) always falls into the accommodating cavity of the oil cup (3).

6. The range hood according to claim 3, characterized in that: The top plate (11) is provided with a groove, the air inlet (111) and the oil dripping hole (112) are arranged in the groove, the movable baffle (2) is slidably connected in the groove, and the lower surface of the movable baffle (2) is flush with the lower surface of the top plate (11) except the groove.

7. The range hood according to claim 2, characterized in that: The range hood further comprises a driving assembly (4), wherein an output end of the driving assembly (4) is connected to the movable baffle (2) and is used to drive the movable baffle (2) to move forward and backward.

8. The range hood according to claim 7, characterized in that: A guide groove (113) is provided on the top plate (11), and the output end of the drive assembly (4) is connected to a connector (5). One end of the connector (5) is connected to the output end of the drive assembly (4), and the other end passes through the guide groove (113) and is connected to the movable baffle (2).

9. The range hood according to claim 8, characterized in that: The driving assembly (4) includes a reduction motor (41), a transmission gear (42), a rack (43) and a slide (44), wherein the reduction motor (41) is arranged on the upper surface of the top plate (11), the transmission gear (42) is connected to the output end of the reduction motor (41), the rack (43) is meshed with the transmission gear (42), the slide (44) is arranged on the upper surface of the top plate (11), the rack (43) is slidably connected to the slide (44), and the connecting member (5) is connected to the rack (43).

10. The range hood according to claim 9, characterized in that: The driving assembly further includes a slide bar (45), the slide bar (45) is slidably connected to the slide seat (44), the rack (43) is connected to the slide bar (45), and the connecting member (5) is provided at the rear end of the slide bar (45).

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