A kitchen ventilation device

Abstract

The utility model relates to kitchen ventilation technical field especially kitchen ventilation equipment. Its technical scheme includes the range hood installed on the wall and sets up the oil storage box near the wall in the bottom of range hood, still includes the support box set up in the both ends of oil storage box, the inside of support box is equipped with the rotating take -out handle structure. The utility model discloses the cooperation of handle structure, detection mechanism, connecting mechanism, dog -claw mechanism etc. structure, first, the oil content in the oil storage box reaches the cleaning liquid level after photoelectric sensor detects, controller drive motor drives rotating rod to turn out handle, the handle that turns out can be known when the user cooks fast, then the user holds handle and can easily pull out the oil storage box, need not bend over to cross the cooking bench, and the elastic embrace piece auxiliary fixed oil storage box, can reset fast after cleaning, solve the problem of taking and putting the oil dirt, can accurate perception oil content, avoid invalid inspection and waste oil overflow.

Description

Technical Field

[0001] This utility model relates to the field of kitchen ventilation technology, and in particular to a ventilation device for kitchens. Background Technology

[0002] In kitchen cooking scenarios, the high-temperature fumes generated during cooking are easily inhaled by the cook, causing coughing and choking. Existing technology utilizes a close-range negative pressure suction and exhaust principle, allowing range hoods to precisely capture and quickly expel the high-temperature oil fume pollutants produced during cooking. Compared to natural ventilation, this effectively addresses the technical shortcomings of easy fume diffusion and low emission efficiency, thus becoming a core ventilation device. Traditional range hoods typically include an oil collection box to collect the waste oil dripping after oil fume separation, preventing oil stains from contaminating the hood and cabinets, or dripping onto countertops and cooktops, while also facilitating regular cleaning and maintenance.

[0003] Some existing range hoods have inconvenient oil collection boxes: First, the oil collection box is usually located on the side near the wall and is often fixed to the inner wall of the range hood with a clip-on structure. When used with a wide stove, users have to bend over to take out the oil collection box, and in some cases, they even have to step over the stove or use their body to brace against the stove for leverage. Cooking oil splatter is easily left on the stove, and clothes are easily stained with oil during the process. Second, if traditional oil collection boxes do not have a transparent window, users cannot directly observe the amount of oil inside and need to check frequently, which can lead to ineffective operations or only discovering the need for cleaning when waste oil overflows. Even if the oil collection box has a transparent window, it is easy for it to turn yellow and dark due to long-term contact with oil, which will also affect the user's accurate judgment of the oil level. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a ventilation device for kitchens.

[0005] The technical solution of this utility model is as follows: A kitchen ventilation device includes a range hood installed on a wall and an oil collection box located at the bottom of the range hood near the wall. It also includes: support boxes located at both ends of the oil collection box, the support boxes having a rotating and retractable handle mechanism inside, and a detection mechanism on the support boxes for opening the handle mechanism upon contact with waste oil inside the oil collection box; a connecting mechanism installed on the outer walls at both ends of the oil collection box, the connecting mechanism for fixing the two ends of the oil collection box to the support boxes; and a pair of claw mechanisms at the bottom of the range hood for supporting the oil collection box.

[0006] Optionally, the detection mechanism includes a protruding plate fixedly connected to the outer wall of one of the support boxes. A photoelectric sensor located inside an oil storage box is fixedly connected to one end of the protruding plate away from the support box. A controller is fixedly connected to the upper surface of one of the support boxes. Motors are fixedly connected inside each support box. The output end of the controller is electrically connected to a pair of motors inside the support boxes. The input end of the controller is electrically connected to the photoelectric sensor.

[0007] Optionally, the handle mechanism includes a rotating rod fixedly sleeved on the motor output shaft, and the support box has a rotating groove for the rotating rod to rotate. An L-shaped limiting frame that locks the rotating rod is fixedly connected inside the rotating groove. The L-shaped limiting frame is used to rotate the rotating rod 90°.

[0008] Optionally, a handle is fixedly connected to the end of the rotating rod away from the support box.

[0009] Optionally, the connecting mechanism includes a connecting plate fixedly connected to the bottom of the support box. The connecting plate has rectangular holes. Both ends of the oil storage box are fixedly connected to rectangular inserts that movably pass through the rectangular holes. The rectangular inserts are provided with a return spring at the end away from the oil storage box. One end of the return spring is fixedly connected to a telescopic block that locks the connecting plate.

[0010] Optionally, the end of the telescopic block furthest from the return spring is provided with an inclination angle.

[0011] Optionally, the claw mechanism includes a bracket fixedly connected to the bottom of the range hood, and a pair of elastic clips fixedly connected to the bracket to clamp the side wall and bottom wall of the oil collection box.

[0012] Optionally, the end of each elastic retaining piece away from the retaining frame is fixedly connected to an inclined guide piece.

[0013] In summary, this application includes at least one of the following beneficial technical effects: This utility model utilizes a combination of a handle mechanism, a detection mechanism, a connecting mechanism, and a claw mechanism. First, a photoelectric sensor detects that the oil level in the oil storage box has reached the cleaning level. Then, the controller drives the motor to rotate the handle, allowing the user to quickly check the oil level while cooking. The user can then easily pull out the oil storage box by holding the handle, without having to bend over or step over the stove. The elastic retaining plate helps to fix the oil storage box in place, and it can be quickly reset after cleaning. This solves the problem of oil smudges when taking it out and putting it back in place, and can accurately sense the oil level, avoiding ineffective checks and waste oil spillage. Attached Figure Description

[0014] Figure 1 A structural schematic diagram of a kitchen ventilation device according to this utility model is provided; Figure 2 for Figure 1A schematic diagram of the split structure; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 A partial cross-sectional structural diagram; Figure 5 for Figure 4 Enlarged view of point B in the middle; Figure 6 for Figure 4 A partial diagram of the split structure; Figure 7 for Figure 6 Enlarged diagram of point C in the middle.

[0015] Reference numerals: 1. Range hood; 11. Oil collection box; 12. Rectangular insert; 13. Return spring; 14. Telescopic block; 15. Inclined angle; 2. Support box; 21. Rotating groove; 22. Motor; 23. Rotating rod; 24. L-shaped limit bracket; 25. Controller; 26. Protruding plate; 27. Photoelectric sensor; 28. Connecting plate; 29. ​​Rectangular hole; 3. Handle; 4. Bracket; 41. Elastic bracket; 42. Inclined guide plate. Detailed Implementation

[0016] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0017] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0018] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example like Figures 1 to 7 As shown, this utility model proposes a kitchen ventilation device, including a range hood 1 installed on the wall and an oil collection box 11 located at the bottom of the range hood 1 near the wall. The oil collection box 11 collects the waste oil dripping after the range hood 1 separates the fumes, preventing oil stains from contaminating the body, cabinets, and countertops. Both ends are fixedly connected to support boxes 2 via connecting mechanisms. Support boxes 2 are provided at both ends of the oil collection box 11, and the support boxes 2 can be fixed to the oil collection box 11 via connecting mechanisms, providing installation and storage space for the handle mechanism.

[0023] Among them, such as Figure 5 and Figure 7As shown, the support box 2 is equipped with a detection mechanism for opening the handle mechanism. The detection mechanism is used to open the oil storage box 11 after contacting the waste oil inside. The detection mechanism includes a protruding plate 26 fixedly connected to the outer wall of one of the support boxes 2. The protruding plate 26 provides mounting support for the photoelectric sensor 27, allowing it to extend into the oil storage box 11 to detect the oil level. The end of the protruding plate 26 away from the support box 2 is fixedly connected to the photoelectric sensor 27 located inside the oil storage box 11. The photoelectric sensor 27 is a sensor that converts light signals into electrical signals. By detecting changes in the object's blocking, reflection, and transmission of light, it can detect parameters such as the presence, position, distance, and state of the object. It can detect the waste oil level in the oil storage box 11 and transmit the signal to the controller 25. The controller 25 is fixedly connected to the upper surface of one of the support boxes 2. The controller 25 can receive the oil level signal and control the motor 22 to start and stop. Motors 22 are fixedly connected inside each support box 2. The motors 22 are controlled by the controller 25, and their output shafts can drive the rotating rod 23 to rotate, realizing the extension and retraction of the handle 3. The output of the controller 25 is electrically connected to the motor 22 inside a pair of support boxes 2, and the input of the controller 25 is electrically connected to the photoelectric sensor 27.

[0024] In addition, such as Figures 1 to 7 As shown, the support box 2 has a rotating handle mechanism inside. The handle mechanism includes a rotating rod 23 fixedly sleeved on the output shaft of the motor 22. The rotating rod 23 can rotate with the motor 22 to be placed horizontally or vertically. The horizontally placed rotating rod 23 allows the user to pull the oil collection box 11 without bending over. The support box 2 has a rotating groove 21 for the rotating rod 23 to rotate. An L-shaped limiting bracket 24 is fixedly connected inside the rotating groove 21 to lock the rotating rod 23. The L-shaped limiting bracket 24 can lock the rotating rod 23, limiting its rotation to only 90°, ensuring that the handle 3 is stable when it is turned out and easy to grip. The L-shaped limiting bracket 24 is used to rotate the rotating rod 23 by 90°. The end of the rotating rod 23 away from the support box 2 is fixedly connected to the handle 3. The handle 3 can be turned out with the rotating rod 23, making it easy for the user to grip and pull the oil collection box 11 and avoiding direct contact with oil.

[0025] It is worth noting that, such as Figure 3 , Figure 5 and Figure 7As shown, connecting mechanisms are installed on the outer walls of both ends of the oil storage box 11. These mechanisms are used to fix the oil storage box 11 to the support box 2. The connecting mechanisms include a connecting plate 28 fixedly connected to the bottom of the support box 2. The connecting plate 28 can cooperate with the rectangular insert 12 of the oil storage box 11 to achieve the connection between the support box 2 and the oil storage box 11. Rectangular holes 29 are provided on the connecting plate 28, providing space for the rectangular insert 12 and the telescopic block 14 to cooperate, ensuring the stability of the connecting mechanism. Rectangular inserts 12, which movably pass through the rectangular holes 29, are fixedly connected to both ends of the oil storage box 11. These rectangular inserts 12 can movably pass through the rectangular holes 29 of the connecting plate 28 of the support box 2, providing an insertion base for the connection between the oil storage box 11 and the support box 2. A return spring 13 is provided inside the end of the rectangular insert 12 away from the oil storage box 11. The return spring 13 can push the telescopic block 14 out, causing the telescopic block 14 to lock the connecting plate 28, ensuring a stable connection between the oil storage box 11 and the support box 2. One end of each return spring 13 is fixedly connected to a telescopic block 14 that holds the connecting plate 28. When the telescopic block 14 is pressed, it can compress the return spring 13 and disengage it from the connecting plate 28, making it easier to separate the oil reservoir 11 from the support box 2. The end of the telescopic block 14 away from the return spring 13 is provided with an inclination angle 15. The function of the inclination angle 15 is to ensure that when the rectangular insert 12 is inserted into the rectangular hole 29, the telescopic block 14 can smoothly and tightly engage with the connecting plate 28.

[0026] Furthermore, such as Figures 3 to 5 As shown, the bottom of the range hood 1 is also equipped with a pair of claw mechanisms to support the oil collection box 11. The claw mechanism includes a bracket 4 fixedly connected to the bottom of the range hood 1. The bracket 4 provides an installation base for the elastic brackets 41 and assists in supporting the oil collection box 11. A pair of elastic brackets 41 are fixedly connected to the bracket 4 to hold the side walls and bottom walls of the oil collection box 11. The elastic brackets 41 can hold the side walls and bottom walls of the oil collection box 11, support the oil collection box 11, and enhance the stability of the oil collection box 11 after installation. An inclined guide plate 42 is fixedly connected to the end of the elastic bracket 41 away from the bracket 4. The inclined guide plate 42 can guide the oil collection box 11 to accurately fit into the elastic bracket 41, which facilitates the installation and repositioning of the oil collection box 11.

[0027] In this embodiment, when using a kitchen ventilation device, the oil collection box 11 is inserted into the rectangular holes 29 of the connecting plate 28 at the bottom of the support box 2 via rectangular inserts 12 on both sides. The return spring 13 pushes the telescopic block 14 to pop out. The tilt angle 15 on the telescopic block 14 can smoothly and tightly fit the connecting plate 28 to avoid jamming, thus completing the fixation of the oil collection box 11 and the support box 2. At the same time, the elastic support piece 41 on the bottom bracket 4 of the range hood 1 supports the side wall and bottom wall of the oil collection box 11, and the tilting guide piece 42 assists the oil collection box 11 to accurately fit into the elastic support piece 41, further reinforcing the oil collection box 11.

[0028] When waste oil accumulates in the oil collection box 11 to the position that triggers the photoelectric sensor 27, the photoelectric sensor 27 transmits a signal to the controller 25. The controller 25 then starts the motor 22 inside the support box 2. The output shaft of the motor 22 drives the rotating rod 23 to rotate within the rotating groove 21. The L-shaped limit bracket 24 restricts the rotating rod 23 to rotate only 90°, causing the handle 3 at the end of the rotating rod 23 to rotate out of the support box 2. The user can then grasp the pair of handles 3 and pull them away from the range hood 1, causing the pair of rotating rods 23 to pull the oil collection box 11 out of the bracket 4 at the bottom of the range hood 1. Then, by pressing the telescopic blocks 14 one by one to compress the return spring 13, the telescopic blocks 14 are released from the connecting plate 28. At the same time, the rectangular insert 12 can pass through the rectangular hole 29, allowing the oil collection box 11 to be easily removed from the middle of the pair of support boxes 2 for cleaning of waste oil. After cleaning, insert a pair of rectangular blocks 12 back into the rectangular holes 29. Under the action of the return spring 13, the telescopic block 14 is reset and tightly attached to the connecting plate 28. Then, the oil collection box 11 is inserted into the elastic retaining piece 41 on the pair of retaining brackets 4 along the inclined guide plate 42, thus completing the reset of the oil collection box 11. Subsequently, the controller 25 controls the motor 22 to reverse, and the rotating rod 23 drives the handle 3 to rotate back into the rotating slot 21 for storage, without occupying kitchen operating space.

[0029] The preferred embodiments of this utility model described above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A kitchen ventilation device, comprising a range hood (1) mounted on a wall and an oil collection box (11) disposed at the bottom of the range hood (1) near the wall, characterized in that, Also includes: Support boxes (2) are provided at both ends of the oil storage box (11). The inside of the support box (2) is provided with a rotating and retractable handle mechanism. The support box (2) is provided with a detection mechanism to drive the handle mechanism to open. The detection mechanism is used to open after contacting the waste oil in the oil storage box (11). A connecting mechanism is installed on the outer walls of both ends of the oil storage box (11). The connecting mechanism is used to fix the two ends of the oil storage box (11) to the support box (2). The bottom of the range hood (1) is also provided with a pair of claw mechanisms to support the oil storage box (11).

2. The kitchen ventilation device according to claim 1, characterized in that, The detection mechanism includes a protruding plate (26) fixedly connected to the outer wall of one of the support boxes (2). A photoelectric sensor (27) located in the oil storage box (11) is fixedly connected to one end of the protruding plate (26) away from the support box (2). A controller (25) is fixedly connected to the upper surface of one of the support boxes (2). A motor (22) is fixedly connected inside each of the support boxes (2). The output end of the controller (25) is electrically connected to a pair of motors (22) in the support boxes (2). The input end of the controller (25) is electrically connected to the photoelectric sensor (27).

3. A kitchen ventilation device according to claim 2, characterized in that, The handle mechanism includes a rotating rod (23) fixedly sleeved on the output shaft of the motor (22). The support box (2) has a rotating groove (21) for the rotating rod (23) to rotate. An L-shaped limiting frame (24) is fixedly connected inside the rotating groove (21) to hold the rotating rod (23). The L-shaped limiting frame (24) is used to rotate the rotating rod (23) by 90°.

4. A kitchen ventilation device according to claim 3, characterized in that, Each of the rotating rods (23) has a handle (3) fixedly connected to the end away from the support box (2).

5. A kitchen ventilation device according to claim 1, characterized in that, The connecting mechanism includes a connecting plate (28) fixedly connected to the bottom of the support box (2). The connecting plate (28) is provided with rectangular holes (29). Both ends of the oil storage box (11) are fixedly connected with rectangular inserts (12) that movably pass through the rectangular holes (29). The rectangular inserts (12) are provided with a return spring (13) at the end away from the oil storage box (11). One end of the return spring (13) is fixedly connected with a telescopic block (14) that locks the connecting plate (28).

6. A kitchen ventilation device according to claim 5, characterized in that, The end of the telescopic block (14) away from the return spring (13) is provided with an inclination angle (15).

7. A kitchen ventilation device according to claim 1, characterized in that, The claw mechanism includes a bracket (4) fixedly connected to the bottom of the range hood (1), and a pair of elastic clips (41) fixedly connected to the bracket (4) to hold the side wall and bottom wall of the oil storage box (11).

8. A kitchen ventilation device according to claim 7, characterized in that, Each of the elastic retaining plates (41) is fixedly connected to an inclined guide plate (42) at the end away from the retaining frame (4).

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