Oil screen mounting structure of range hood and range hood

Abstract

The utility model relates to an oil screen installation structure of a range hood and the range hood, the oil screen installation structure comprises: a casing, which is provided with a front side wall inclined downwards from front to back, and the front side wall is provided with an air inlet; the oil screen is detachably installed at the air inlet of the machine shell, and an air inlet hole is formed in the oil screen; the top edge of an air inlet of the machine shell is provided with a connecting plate extending downwards along the plane where the air inlet is located, when the oil screen is installed in place at the air inlet, the oil screen is located on the front side of the connecting plate, and the connecting plate is provided with a joint part used for being connected with the oil screen. And the bottom edge of the connecting plate is also provided with an oil guide flange which is folded towards one side where the oil screen is located and extends along the left-right direction. Oil flowing down from the connecting plate can be prevented from penetrating through the air inlet holes of the oil screen to drop onto a cooking bench, the hole opening area of the oil screen can be increased as much as possible, the air inlet area is guaranteed, and the strength and manufacturability of the connecting plate can also be guaranteed.

Description

Technical Field

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

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. Traditional range hoods include top-suction range hoods and side-suction range hoods. An air inlet is provided on the front side of the housing of the side-suction range hood, and an oil net for filtering oil smoke is installed at the air inlet. Generally, the oil net is detachably connected to the air inlet of the housing using a snap assembly, and correspondingly, a folded edge extending toward the middle of the air inlet is provided at the outer edge of the air inlet of the housing, and a corresponding snap or snap joint is provided on the folded edge.

[0003] However, the oil net installation structure of the above-mentioned range hood has certain shortcomings: the folded edge at the air inlet of the casing extends too protruding toward the air inlet, and there is a risk that the oil droplets on the inner wall of the casing will drip from the openings of the oil net. There are generally two ways to deal with this situation. One is to reduce the size of the opening on the oil net corresponding to the folded edge, and use the entity on the oil net to receive the oil, but this will have a certain impact on the incoming air volume and is not conducive to air intake; the other way is to reduce the size of the folded edge of the casing, but reducing the size of the folded edge of the casing has certain limitations. If the size of the folded edge is too small, the mold adaptation and processing and manufacturing will be difficult. On the other hand, it will also cause insufficient strength of the folded edge and prone to deformation problems.

[0004] Therefore, the oil net installation structure of the existing range hood needs to be further improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an oil net installation structure for a range hood in response to the current status of the prior art, which can prevent the oil flowing down the connecting plate from dripping onto the stove through the air inlet holes of the oil net, and can maximize the opening area of ​​the oil net to ensure the air inlet area, and can also ensure the strength and manufacturability of the connecting plate.

[0006] The technical solution adopted by the utility model to solve the first technical problem is: an oil net installation structure of a range hood, comprising:

[0007] The housing has a front side wall that slopes downward from the front to the rear, and an air inlet is provided on the front side wall;

[0008] An oil screen is detachably mounted at the air inlet of the housing, and an air inlet hole is provided on the oil screen;

[0009] The top edge of the air inlet of the housing has a connecting plate extending downward along the plane where the air inlet is located. When the oil screen is in place at the air inlet, the oil screen is located on the front side of the connecting plate, and the connecting plate is provided with a joint for connecting with the oil screen. The bottom edge of the connecting plate also has an oil guiding flanging that folds toward the side where the oil screen is located and extends in the left-right direction.

[0010] In order to ensure that the oil can flow smoothly along the oil guiding flanging under the action of gravity, the angle formed by the extending direction of the oil guiding flanging and the vertical plane is denoted as α, and the value range of α is: 20° ≤ α ≤ 80°. Preferably, 30° ≤ α ≤ 45°.

[0011] In consideration of ensuring the self-strength of the connecting plate at the same time, the oil guiding flanging is perpendicular to the main body of the connecting plate.

[0012] As an improvement, the angle formed by the front side wall of the housing and the horizontal plane is denoted as β, and the value range of β is: 20° ≤ β ≤ 60°.

[0013] In order to facilitate the oil to flow downward along the oil screen and finally collect in the oil cup at the bottom of the housing, the oil screen is provided with air inlet holes arranged at intervals in the left-right direction, and each air inlet is a strip-shaped hole extending in the up-down direction.

[0014] In order to further prevent the oil on the oil screen from dripping from the air inlet holes of the oil screen, the outer peripheral edge of the ventilation holes on the oil screen has an oil retaining flanging that folds and extends toward the inside of the housing.

[0015] Generally speaking, the oil screen can be detachably connected to the housing through a magnetic adsorption connection method or a snap connection method. Preferably, the oil screen is detachably connected to the air inlet of the housing through a snap component.

[0016] In order to simplify the structure of the snap component between the oil screen and the housing, the inner side of the oil screen is provided with a snap that extends toward the connecting plate, the side of the connecting plate facing away from the oil screen is provided with a snap joint, and the connecting plate is provided with a socket for the snap to be inserted and engaged with the snap joint. It can be imagined that the snap can be set on the connecting plate of the housing, and the snap joint can also be set on the oil screen.

[0017] The technical solution adopted by the present utility model to solve the second technical problem is: an oil fume extractor, including the oil screen installation structure of the above-mentioned oil fume extractor.

[0018] Compared with the prior art, the advantages of the present utility model are as follows: At the bottom edge of the connecting plate for connecting the oil screen at the air inlet of the casing of the range hood, there is also an oil guiding flanging that folds towards the side where the oil screen is located and extends in the left-right direction. When the oil droplets drip along the connecting plate, they move to the left and right, and can also make the dripping position move forward, located above the front of the corresponding air inlet holes of the oil screen, preventing the oil droplets from passing through the air inlet holes of the oil screen and dripping onto the tabletop. Furthermore, the opening size of the air inlet of the oil screen can be increased to ensure the air inlet area. The design of the folded oil guiding flanging also increases the overall strength of the connecting plate and is convenient for processing and manufacturing. Description of the Drawings

[0019] Figure 1 It is a schematic three-dimensional structure diagram of an embodiment of the present utility model;

[0020] Figure 2 It is a schematic three-dimensional structure diagram of the range hood of an embodiment of the present utility model (the left oil screen is in a separated state);

[0021] Figure 3 It is a vertical sectional view of the range hood of an embodiment of the present utility model cut along the front-rear direction. Detailed Embodiment

[0022] The present utility model will be further described in detail below in conjunction with the embodiments of the drawings.

[0023] In the description and claims of the present utility model, terms indicating directions such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc. are used to describe various example structural parts and elements of the present utility model. However, these terms are used here only for the convenience of description and are determined based on the example orientations shown in the drawings. Since the embodiments disclosed by the present utility model can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the direction of gravity.

[0024] Figures 1-3Shows an oil screen installation structure of an oil fume extractor of the present utility model and a preferred embodiment of the oil fume extractor. The oil fume extractor includes a casing 1 and a centrifugal fan (not shown) disposed inside the casing 1. The casing 1 generally includes a fan frame 11 and a smoke collecting hood 12 disposed at the bottom of the fan frame 11. The inner cavity of the fan frame 11 is communicated with the inner cavity of the smoke collecting hood 12. An air inlet 120 is provided on the front side wall of the smoke collecting hood 12, and external flue gas can enter the smoke collecting hood 12 through the air inlet 120. The centrifugal fan is disposed inside the fan frame 11. When the centrifugal fan operates, a negative pressure is generated, and external oil fume can be sucked into the smoke collecting hood 12 through the air inlet 120. An oil screen 2 is further provided at the air inlet 120 of the smoke collecting hood 12 for filtering oil fume. An oil cup 15 is provided at the bottom of the smoke collecting hood 12. The oil cup 15 is in a long strip shape extending left and right and is used for receiving the oil stains flowing down from the smoke collecting hood 12. A smoke baffle (not shown) that can deflect back and forth relative to the smoke collecting hood 12 is further provided at the front of the smoke collecting hood 12. The smoke baffle is connected to the main body of the smoke collecting hood 12 through a hinge movement mechanism and can specifically deflect forward to open the above-mentioned air inlet 120 and deflect backward to block and close the above-mentioned air inlet 120. The hinge movement mechanism for driving the smoke baffle to deflect can adopt a conventional hinge movement mechanism in the prior art and will not be elaborated here.

[0025] The front side wall of the smoke collecting hood 12 is a front side wall that slopes downward from front to back, and an air inlet 120 is provided thereon. The included angle formed by the front side wall of the casing 1 and the horizontal plane is denoted as β, and the value range of β is: 20° ≤ β ≤ 60°. The air inlet 120 extends in the left-right direction. The oil screen 2 correspondingly is also a strip-shaped oil screen 2 extending in the left-right direction. The oil screen 2 is detachably installed at the air inlet 120 of the casing 1. Air inlet holes 20 are provided on the oil screen 2. In order to facilitate the oil liquid to flow downward along the oil screen 2 and finally converge into the oil cup 15 at the bottom of the casing 1, the air inlet holes 20 provided on the oil screen 2 are arranged at intervals in the left-right direction in sequence, and each air inlet hole 20 is a strip-shaped hole extending in the up-down direction. An oil blocking flanging 21 that turns and extends inward toward the inside of the casing 1 is provided at the outer peripheral edge of the ventilation holes on the oil screen 2. The oil blocking flanging 21 can prevent the oil liquid on the oil screen 2 from dripping from the air inlet holes 20 of the oil screen 2, so that the oil liquid flows downward along the solid part of the oil screen 2 (such as the wall between two adjacent air inlet holes 20 on the oil screen 2).

[0026] At the top edge of the air inlet 120 of the casing 1, there is a connecting plate 121 extending downward along the plane where the air inlet 120 is located. The connecting plate 121 is provided with a joint for connecting with the oil screen 2. Specifically, the oil screen 2 can be detachably connected to the connecting plate 121 of the casing 1 by a magnetic connection method or a snap 22 connection method. In the state where the oil screen 2 is installed in place at the air inlet 120, the oil screen 2 is located on the front side of the connecting plate 121. When the oil screen 2 is connected to the connecting plate 121 by a magnetic method, the position on the connecting plate 121 where the magnetic member or the magnetic conductive member that can be adsorbed by the magnetic member is installed constitutes the above-mentioned joint of the connecting plate 121; when the oil screen 2 is connected to the connecting plate 121 by a snap 22 assembly connection method, the snap 22 extending toward the connecting plate 121 can be provided on the inner side of the oil screen 2. Correspondingly, a snap joint 1214 (such as a conventional elastic sleeve with a locking and holding function) is provided on the side of the connecting plate 121 facing away from the oil screen 2. An insertion opening 1213 for the snap 22 to be inserted and engaged with the snap joint 1214 is formed on the connecting plate 121, and the above-mentioned insertion opening 1213 and the corresponding snap joint 1214 correspondingly constitute the above-mentioned joint of the connecting plate 121.

[0027] At the bottom edge of the connecting plate 121 of this embodiment, there is also an oil guiding flanging 1210 that turns over toward the side where the oil screen 2 is located and extends in the left-right direction. In order to ensure that the oil can flow smoothly along the oil guiding flanging 1210 under the action of gravity, the angle formed by the extending direction of the oil guiding flanging 1210 and the vertical plane is denoted as α, and the value range of α is: 20° ≤ α ≤ 80°. Preferably, the oil guiding flanging 1210 is perpendicular to the main body of the connecting plate 121. The fact that the oil guiding flanging 1210 is perpendicular to the main body of the connecting plate 121 can facilitate the smooth downward flow of the oil along the oil guiding flanging 1210 on the one hand, and on the other hand, it also ensures the self-strength of the connecting plate 121 and will not easily deform. The front projection of the bottommost part of the oil guiding flanging 1210 in the vertical direction is located in front of the corresponding air inlet holes 20 (the air inlet holes 20 opposite in the up-down direction) on the oil screen 2.

[0028] See Figure 2, a slot 1215 is also provided on the lower side of the air inlet 120 of the smoke collecting hood 12. Correspondingly, a tab 23 is provided at the lower edge of the oil mesh 2 and extends downward so as to be inserted into the slot 1215. A limit baffle 1216 is also provided at the inner side position of the slot 1215 on the lower side of the air inlet 120 of the smoke collecting hood 12 for positioning the oil mesh 2 to facilitate the alignment of the tab 23 on the oil mesh 2 with the slot 1215. When installing the oil mesh 2, the upper part of the oil mesh 2 can be slightly tilted outward, so as to facilitate the alignment of the tab 23 at the lower part of the oil mesh 2 with the slot 1215 at the lower side of the air inlet 120 of the smoke collecting hood 12 and insert it into the slot 1215. Then, the upper part of the oil mesh 2 is pushed inward, so that the buckle 22 on the back of the oil mesh 2 is snapped into the socket 1213 of the connecting plate 121 and locked by the buckle 22 coupling member.

[0029] At the bottom edge of the connecting plate 121 for connecting the oil mesh 2, the air inlet 120 of the casing 1 of the range hood in this embodiment further has an oil guiding flanging 1210 that is folded toward the side where the oil mesh 2 is located and extends in the left-right direction. When the oil droplets drip along the connecting plate 121, it moves to the left and right, and can also move the dripping position forward, located above the front of the corresponding air inlet holes 20 of the oil mesh 2, preventing the oil droplets from passing through the air inlet holes 20 of the oil mesh 2 and dripping on the tabletop. Furthermore, the opening size of the air inlet 120 of the oil mesh 2 is increased to ensure the air inlet area. The design of the folded oil guiding flanging 1210 also increases the overall strength of the connecting plate 121 and is convenient for processing and manufacturing.

Claims

1. An oil net installation structure for a range hood, comprising: The housing (1) has a front side wall that slopes downward from the front to the rear, and an air inlet (120) is provided on the front side wall; An oil net (2) is detachably mounted at the air inlet (120) of the housing (1), and an air inlet hole (20) is provided on the oil net (2); The invention is characterized in that: the top edge of the air inlet (120) of the housing (1) is provided with a connecting plate (121) extending downwardly along the plane where the air inlet (120) is located; when the oil net (2) is installed in place at the air inlet (120), the oil net (2) is located in front of the connecting plate (121), and the connecting plate (121) is provided with a joint portion for connecting with the oil net (2); the bottom edge of the connecting plate (121) is also provided with an oil guide flange (1210) folded toward the side where the oil net (2) is located and extending in the left-right direction.

2. The oil screen installation structure of the range hood according to claim 1, wherein: The angle formed by the intersection of the extension direction of the oil-guiding flange (1210) and the vertical plane is recorded as α, and the value range of α is: 20°≤α≤80°.

3. The oil screen installation structure of the range hood according to claim 2, characterized in that: The oil guiding flange (1210) is perpendicular to the main body of the connecting plate (121).

4. The oil screen installation structure of the range hood according to claim 2, characterized in that: The angle formed by the intersection of the front side wall of the casing (1) and the horizontal plane is recorded as β, and the value range of β is: 20°≤β≤60°.

5. The oil screen installation structure of the range hood according to claim 1, characterized in that: The oil net (2) is provided with air inlet holes (20) arranged in sequence at intervals in the left-right direction, and each of the air inlet holes (20) is a strip-shaped hole extending in the up-down direction.

6. The oil screen installation structure of the range hood according to claim 5, characterized in that: The ventilation holes on the oil net (2) have an oil-blocking flange (21) at the outer peripheral edge thereof, the flange being folded and extending inwardly toward the casing (1).

7. The oil screen installation structure of the range hood according to any one of claims 1 to 6, characterized in that: The oil screen (2) is detachably connected to the air inlet (120) of the housing (1) via a snap-fit ​​(22) assembly.

8. The oil screen installation structure of the range hood according to claim 7, characterized in that: A buckle (22) extending toward the connecting plate (121) is provided on the inner side of the oil net (2); a buckle engaging piece (1214) is provided on the side of the connecting plate (121) facing away from the oil net (2); and a socket (1213) is provided on the connecting plate (121) for the buckle (22) to be inserted and for engaging with the buckle engaging piece (1214).

9. A range hood, characterized in that: An oil net mounting structure for a range hood comprising any one of claims 1 to 8.

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