Oil dripping prevention device and range hood comprising same

Abstract

The utility model provides an oil dripping prevention device and a range hood comprising the same, the oil dripping prevention device comprises an oil receiving mechanism, the oil receiving mechanism comprises an oil collecting cavity, the oil collecting cavity is provided with an oil receiving hole and an oil leaking hole, when a smoke barrier is in an open state, the oil receiving hole is in an open state, so that oil on the smoke barrier enters the oil collecting cavity through the oil receiving hole; oil in the oil collecting cavity is configured to enter an oil cup of the range hood through the oil leakage hole, and the range hood comprises the oil dripping prevention device; according to the arrangement mode of the oil receiving mechanism, oil drops of the oil baffle plate can be received, and the oil drops are prevented from dropping on the table top of a user; the oil collecting cavity is used for containing oil drops, the oil receiving hole is beneficial to enabling the oil drops on the smoke baffle to flow into the oil collecting cavity under the action of gravity, and the oil leaking hole is beneficial to enabling the oil drops in the oil collecting cavity to flow into an oil cup, so that the oil drops are prevented from dropping on a table top of a user.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen electrical appliances technical field, especially a kind of oil dripping prevention device and range hood comprising it. BACKGROUND

[0002] Range hood as a kind of kitchen electrical appliances, oil fume generated in the kitchen cooking process can be quickly discharged, realize the purpose of purifying kitchen environment;Range hood is installed above kitchen stove, can the harmful oil fume generated in the cooking process is quickly drawn, is discharged outdoor, with the continuous improvement of people's living standards, range hood has become the indispensable household electrical appliances in kitchen.

[0003] Current market range hood is mainly divided into two kinds one is European range hood, another kind is near range hood, there is a very big difference from appearance, near range hood has a very big slope, another obvious difference in structure is, since near range hood is close to oil fume, in addition to a very big slope, there is also a opening and closing mechanism, as a smoke board improves the working effect of range hood.

[0004] The existing near range hood is close to oil fume machine, and there is a large smoke board, so that oil fume can be prevented from escaping, but in high oil fume environment, the smoke board can be liquefied due to oil gas on the smoke board, forming oil drops, and then due to gravity, it is easy to drop on user's table top, which affects the user's product use experience. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem that the existing range hood is easy to drop oil drops on user's table top, and provides a kind of oil dripping prevention device and range hood comprising it.

[0006] The utility model solves the above technical problem by the following technical scheme:

[0007] An oil dripping prevention device, the oil dripping prevention device is used in range hood, and the range hood includes smoke board and oil cup, and the oil dripping prevention device includes oil receiving mechanism, and the oil receiving mechanism is used to be installed on the side of the smoke board towards the inside of the range hood;

[0008] Wherein, the oil receiving mechanism includes oil collecting cavity, and the oil collecting cavity has oil receiving hole and oil leaking hole, and the oil receiving hole is located on the upper surface of the oil collecting cavity, and the oil leaking hole is located on the lower part of the oil collecting cavity;

[0009] When the smoke board is in the open state, the oil receiving hole is in the open state, so that the oil on the smoke board enters the oil collecting cavity through the oil receiving hole;

[0010] Wherein, the oil in the oil collecting cavity is configured to be able to enter the oil cup of the range hood through the oil leaking hole.

[0011] In the scheme, when the smoke baffle is in the open state, the oil fume is liquefied on the smoke baffle to form oil droplets; the oil collecting cavity is used for accommodating the oil droplets, the oil receiving hole is beneficial to make the oil droplets on the smoke baffle flow into the oil collecting cavity under the action of gravity, and the oil leakage hole is beneficial to make the oil droplets in the oil collecting cavity flow into the oil cup, thereby preventing the oil droplets from dropping on the user's countertop; the setting mode of the oil receiving mechanism is beneficial to receive the oil droplets of the oil baffle and prevent the oil droplets from dropping on the user's countertop.

[0012] Preferably, the oil receiving mechanism comprises a first connecting piece and a second connecting piece, the first connecting piece is arranged on the wall surface of the smoke baffle, and the second connecting piece is nested in the interior of the first connecting piece and encloses the oil collecting cavity with the first connecting piece;

[0013] The oil receiving hole comprises a first oil receiving hole and a second oil receiving hole, and the oil leakage hole comprises a first oil leakage hole and a second oil leakage hole;

[0014] The first oil receiving hole and the first oil leakage hole are respectively located on the upper surface and the lower surface of the first connecting piece, and the second oil receiving hole and the second oil leakage hole are respectively located on the upper surface and the lower surface of the second connecting piece;

[0015] When the oil receiving hole is in the open state, the first oil receiving hole and the second oil receiving hole are in communication;

[0016] When the oil in the oil collecting cavity is configured to be able to enter the oil cup through the oil leakage hole, the first oil leakage hole and the second oil leakage hole are in communication.

[0017] In the scheme, the setting mode of the first connecting piece and the second connecting piece forms the oil collecting cavity, which is beneficial to collect the oil droplets on the smoke baffle; the setting mode of the first oil receiving hole and the second oil receiving hole is beneficial to make the oil droplets on the smoke baffle flow into the oil collecting cavity when the smoke baffle is opened, and the setting mode of the first oil leakage hole and the second oil leakage hole is beneficial to make the oil in the oil collecting cavity flow into the oil cup.

[0018] Preferably, when the oil receiving hole is in the open state, the first oil leakage hole and the second oil leakage hole are not in communication;

[0019] When the smoke baffle is in the closed state, the first oil leakage hole and the second oil leakage hole are in communication;

[0020] The first oil leakage hole and the second oil leakage hole are located above the oil cup, so that the oil in the oil collecting cavity is transferred to the oil cup from the second oil leakage hole and the first oil leakage hole under the action of gravity; or, the oil receiving mechanism further comprises an external pipeline, one end of the external pipeline is connected to and communicated with the first oil leakage hole, and the other end of the external pipeline leads to the oil cup.

[0021] In the present scheme, the first oil leakage hole and the second oil leakage hole are not communicated when the oil receiving hole is in the open state, which prevents oil droplets in the oil collecting cavity from falling on the user's table top when the oil receiving hole is in the open state, that is, when the smoke baffle is opened; the first oil leakage hole and the second oil leakage hole are communicated when the smoke baffle is in the closed state, which facilitates the oil in the oil collecting cavity to flow into the oil cup, and the oil in the oil collecting cavity is less likely to fall on the user's table top due to the closure of the smoke baffle; the first oil leakage hole and the second oil leakage hole are located above the oil cup, which facilitates the use of the gravity of the oil to make the oil enter the oil cup without the need for additional power to drive; the setting of the external pipeline makes it unnecessary to set the second oil leakage hole on the second connection, and the first oil leakage hole and the second oil leakage hole do not need to be communicated or not communicated, and the structure is simpler.

[0022] Preferably, the oil receiving mechanism further comprises an external pipeline, one end of the external pipeline being connected to the first oil leakage hole and the other end leading to the oil cup.

[0023] Preferably, the oil receiving mechanism further comprises a valve provided on the external pipeline for opening or closing the external pipeline, and when the external pipeline is in the open state, the first oil leakage hole, the second oil leakage hole and the external pipeline are communicated.

[0024] In the present scheme, the setting of the above-mentioned valve facilitates flexible control of when the oil in the oil collecting cavity enters the oil cup.

[0025] Preferably, the oil receiving mechanism further comprises a driving assembly capable of acting on one end of the second connecting member to make the second connecting member movable relative to the first connecting member to allow or prevent the first oil receiving hole and the second oil receiving hole from being communicated, and to allow or prevent the first oil leakage hole and the second oil leakage hole from being communicated.

[0026] In the present scheme, the setting of the above-mentioned driving assembly facilitates the movement of the second connecting member to control the communication or non-communication of the first oil receiving hole and the second oil receiving hole, and the communication or non-communication of the first oil leakage hole and the second oil leakage hole, so as to achieve the effects of oil receiving and oil leakage.

[0027] The oil receiving mechanism further comprises a resilient member provided and connected between the inner wall surface of the first connecting member and the end surface of the first end, and the driving assembly is capable of acting on the second end.

[0028] When the smoke baffle is turned from the open state to the closed state, the driving assembly drives the second connecting member to move towards the interior of the first connecting member, and the resilient member is in a compressed state.

[0029] In the present scheme, the resilient member cooperates with the driving assembly to meet the needs of whether the first oil receiving hole and the second oil receiving hole are communicated, and whether the first oil leakage hole and the second oil leakage hole are communicated.

[0030] Preferably, the driving assembly comprises a pushing member, an air pipe and a power source, the pushing member is arranged between the second connecting member and the air pipe, and the air pipe is connected to the power source.

[0031] The power source is a centrifugal fan system of the range hood, or the power source is a power source independent of the centrifugal fan system and externally connected to the body of the range hood.

[0032] In the scheme, the power source is used to provide power for the pushing member, and the air pipe is used to transport the power, when the power source is the centrifugal fan system of the range hood, that is, no additional power source is needed, which simplifies the structure and reduces the cost, and the independent power source is used to provide power for the pushing member.

[0033] Preferably, the plurality of first oil receiving holes and the plurality of first oil leaking holes are respectively and uniformly arranged on the upper surface and the lower surface of the first connecting member.

[0034] The plurality of second oil receiving holes and the plurality of second oil leaking holes are respectively and uniformly arranged on the upper surface and the lower surface of the second connecting member.

[0035] In the scheme, the plurality of first oil receiving holes, the plurality of first oil leaking holes, the plurality of second oil receiving holes and the plurality of second oil leaking holes are arranged, which is beneficial to improve the oil receiving efficiency of the oil collecting cavity and the oil leaking efficiency of the oil collecting cavity.

[0036] The utility model also provides a range hood, the range hood further includes the above -mentioned anti -dripping oil device, and the anti -dripping oil device is installed on the body.

[0037] Preferably, the setting direction of the oil collecting cavity is perpendicular to the direction of gravity, the smoke baffle has a first end and a second end along the setting direction of the oil collecting cavity, and the oil collecting cavity extends from the first end of the smoke baffle to the second end of the smoke baffle.

[0038] In the scheme, the setting mode of the oil collecting cavity is beneficial to maximize the reception of oil droplets on the smoke baffle.

[0039] The utility model discloses the positive progress effect lies in: the setting mode of the above -mentioned oil receiving mechanism is favorable to the reception of oil droplets on the oil baffle, prevents oil droplets from dripping on the user's table top, the oil collecting cavity is used to accommodate oil droplets, the oil receiving hole is beneficial to the oil droplets on the smoke baffle flowing into the oil collecting cavity under the action of gravity, and the oil leaking hole is beneficial to the oil droplets in the oil collecting cavity flowing into the oil cup, thereby preventing oil droplets from dripping on the user's table top, when the smoke baffle is in the open state, the oil fume is liquefied on the smoke baffle to form oil droplets. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 It is a structural schematic view of the range hood of an embodiment of the utility model.

[0041] Figure 2Another structural schematic view of the range hood of one embodiment of the present utility model.

[0042] Figure 3 The structural schematic view of the oil receiving mechanism of one embodiment of the present utility model.

[0043] Figure 4 The structural schematic view of the oil receiving mechanism of one embodiment of the present utility model. Figure 3 The sectional view of the oil receiving mechanism.

[0044] Figure 5 The structural schematic view of the first connecting piece of one embodiment of the present utility model.

[0045] Figure 6 The structural schematic view of the second connecting piece of one embodiment of the present utility model.

[0046] Figure 7 The internal structural schematic view of the oil receiving mechanism of one embodiment of the present utility model.

[0047] Explanation of reference signs:

[0048] Range hood 100

[0049] Oil receiving mechanism 11

[0050] Oil receiving hole 1111

[0051] First oil receiving hole 11111

[0052] Second oil receiving hole 11112

[0053] Oil leakage hole 1112

[0054] First oil leakage hole 11121

[0055] Second oil leakage hole 11122

[0056] First connecting piece 112

[0057] Second connecting piece 113

[0058] Elastic member 114 Specific implementation

[0059] The present utility model will be described in more detail below with reference to a preferred embodiment and the accompanying drawings, but the present utility model is not limited in the scope of the embodiment.

[0060] Reference Figures 1 to 7The utility model provides a kind of oil dripping prevention device, oil dripping prevention device is used for range hood 100, range hood 100 includes fender and oil cup, oil dripping prevention device includes oil receiving mechanism 11, oil receiving mechanism 11 is used to install in the side of fender towards the inside of range hood 100;Wherein, oil receiving mechanism 11 includes oil collection cavity, oil collection cavity has oil receiving hole and oil leakage hole, oil receiving hole is located in the upper surface of oil collection cavity, and oil leakage hole is located in the lower part of oil collection cavity;When fender is in open state, oil receiving hole is in open state, to make the oil on fender enter oil collection cavity by oil receiving hole 1111;Wherein, oil in oil collection cavity is configured to be able to enter the oil cup of range hood 100 by oil leakage hole.

[0061] In the scheme, when fender is in open state, oil fume is liquefied on fender, and oil drop is formed;Above-mentioned oil collection cavity is used to contain oil drop, oil receiving hole 1111 is favorable to make that oil drop on fender flows into oil collection cavity under the action of gravity, and oil leakage hole is favorable to make that oil drop in oil collection cavity flows into oil cup, and oil drop is prevented from dripping on user's countertop;The setting mode of above-mentioned oil receiving mechanism 11 is favorable to receive the oil drop of oil retaining plate, and oil drop is prevented from dripping on user's countertop.It needs to be explained that oil cup is arranged on the inner wall of range hood below oil leakage hole, when fender is opened, oil fume will form oil drop on fender, and oil drop flows into oil collection cavity under the action of gravity.

[0062] Reference Figure 1 And Figure 7 It is understood that oil receiving mechanism 11 includes first connecting piece 112 and second connecting piece 113, first connecting piece 112 is arranged on the wall surface of fender, and second connecting piece 113 is nested in the inside of first connecting piece 112 and is surrounded with first connecting piece 112 to form oil collection cavity;Oil receiving hole 1111 includes first oil receiving hole 11111 and second oil receiving hole 11112, and oil leakage hole includes first oil leakage hole 11121 and second oil leakage hole 11122;First oil receiving hole 11111 and first oil leakage hole 11121 are respectively located on the upper surface and lower surface of first connecting piece 112, and second oil receiving hole 11112 and second oil leakage hole 11122 are respectively located on the upper surface and lower surface of second connecting piece 113;When oil receiving hole 1111 is in open state, first oil receiving hole 11111 and second oil receiving hole 11112 are communicated;When oil in oil collection cavity is configured to be able to enter oil cup by oil leakage hole, first oil leakage hole 11121 and second oil leakage hole 11122 are communicated.

[0063] In the embodiment, the oil collecting cavity formed by the arrangement of the first connecting member 112 and the second connecting member 113 is conducive to collecting oil drops on the smoke screen; the arrangement of the first oil inlet hole 11111 and the second oil inlet hole 11112 is conducive to causing the oil drops on the smoke screen to flow into the oil collecting cavity when the smoke screen is opened; and the arrangement of the first oil outlet hole 11121 and the second oil outlet hole 11122 is conducive to causing the oil in the oil collecting cavity to flow into the oil cup.

[0064] It should be noted that the first connecting member 112 includes a cavity and an opening, the second connecting member 113 is nested in the cavity through the opening, and the second connecting member 113 also includes a cavity, and when the oil inlet hole 1111 is in the open state, the oil on the smoke screen flows into the cavity of the second connecting member 113.

[0065] Reference Figure 1 and Figure 7 It should be understood that when the oil inlet hole 1111 is in the open state, the first oil outlet hole 11121 and the second oil outlet hole 11122 are not connected; when the smoke screen is in the closed state, the first oil outlet hole 11121 and the second oil outlet hole 11122 are connected; wherein the first oil outlet hole 11121 and the second oil outlet hole 11122 are located above the oil cup, so that the oil in the oil collecting cavity is transferred to the oil cup under the action of gravity from the second oil outlet hole 11122 and the first oil outlet hole 11121; or the oil inlet mechanism 11 further includes an external pipeline, one end of the external pipeline is connected to and communicated with the first oil outlet hole 11121, and the other end of the external pipeline leads to the oil cup.

[0066] In the embodiment, when the oil inlet hole 1111 is in the open state, the first oil outlet hole 11121 and the second oil outlet hole 11122 are not connected, which prevents the oil drops in the oil collecting cavity from falling on the user's table top when the oil inlet hole 1111 is in the open state, that is, when the smoke screen is opened; when the smoke screen is in the closed state, the first oil outlet hole 11121 and the second oil outlet hole 11122 are connected, which is conducive to causing the oil in the oil collecting cavity to flow into the oil cup, and because the smoke screen is closed, the oil in the oil collecting cavity is less likely to fall on the user's table top; the first oil outlet hole 11121 and the second oil outlet hole 11122 are located above the oil cup, which is conducive to causing the oil to enter the oil cup by using the gravity of the oil itself without the need for additional power to drive; the arrangement of the external pipeline eliminates the need to provide the second oil outlet hole 11122 on the second connecting member, and eliminates the need to connect or disconnect the first oil outlet hole 11121 and the second oil outlet hole 11122, thereby simplifying the structure.

[0067] It should be noted that when the smoke screen is in the closed state, the oil outlet hole is opposite the user's table top; when the smoke screen is in the closed state, the first oil outlet hole 11121 and the second oil outlet hole 11122 are connected, but the first oil inlet hole 11111 and the second oil inlet hole 11112 are not connected, and the oil outlet hole is opposite the oil cup.

[0068] In another embodiment, with reference to Figure 2 , the oil receiving mechanism 11 further comprises an external connecting pipe, one end of the external connecting pipe is connected to the first oil leakage hole 11121, and the other end leads to the oil cup; wherein, a valve for opening or closing the external connecting pipe is arranged on the external connecting pipe, and when the external connecting pipe is in an open state, the first oil leakage hole 11121, the second oil leakage hole 11122 and the external connecting pipe are in communication.

[0069] In this embodiment, the arrangement of the valve is conducive to flexible control of when the oil in the oil collecting cavity enters the oil cup.

[0070] It should be noted that the valve can also be other components that can open or close the external connecting pipe.

[0071] With reference to Figures 1 to 7 It should be understood that the oil receiving mechanism 11 further comprises a driving assembly, the driving assembly can act on one end of the second connecting piece 113 to make the second connecting piece 113 movable relative to the first connecting piece 112, so as to allow or prevent the first oil receiving hole 11111 and the second oil receiving hole 11112 from being in communication, and allow or prevent the first oil leakage hole 11121 and the second oil leakage hole 11122 from being in communication.

[0072] In this embodiment, the arrangement of the driving assembly is conducive to moving the second connecting piece 113 to control the first oil receiving hole 11111 and the second oil receiving hole 11112 to be in communication or not in communication, and the first oil leakage hole 11121 and the second oil leakage hole 11122 to be in communication or not in communication, so as to achieve the effects of oil receiving and oil leakage.

[0073] It should be noted that the second connecting piece 113 is not completely attached to the first connecting piece 112, nor is it completely detached from the first connecting piece 112.

[0074] With reference to Figure 1 and Figure 7 It should be understood that the second connecting piece 113 has a first end and a second end in the axial direction; the oil receiving mechanism 11 further comprises a resilient member 114, the resilient member 114 is arranged and connected between the inner wall surface of the first connecting piece 112 and the end surface of the first end, and the driving assembly can act on the second end; when the smoke screen is turned from the open state to the closed state, the driving assembly drives the second connecting piece 113 to move towards the inside of the first connecting piece 112, and the resilient member 114 is in a compressed state.

[0075] In this embodiment, the resilient member 114 cooperates with the driving assembly to meet the needs of whether the first oil receiving hole 11111 and the second oil receiving hole 11112 are in communication, and whether the first oil leakage hole 11121 and the second oil leakage hole 11122 are in communication.

[0076] It should be noted that when the smoke baffle is in the closed state, the oil inlet 1111 is not connected, and the air in the oil collection chamber will be discharged through the oil leakage hole. This is beneficial to drive the oil in the oil collection chamber to leak into the oil cup, thereby improving the oil leakage efficiency of the oil collection chamber. When the smoke baffle changes from the closed state to the open state, the drive assembly drives the second connecting member 113 to move outward of the first connecting member 112, and the elastic member 114 returns to the state before compression.

[0077] refer to Figure 1 and Figure 7 It is understood that the drive assembly includes a pusher, an air pipe, and a power source. The pusher is disposed between the second connector 113 and the air pipe, and the air pipe is connected to the power source. The power source is either the centrifugal fan system of the range hood 100 itself, or a power source independent of the centrifugal fan system and externally connected to the body of the range hood 100. In addition, the independent power source is for providing power to the pusher.

[0078] In this embodiment, the power source is used to provide power to the pushing component, and the air pipe is used to transport this power. When the power source is the centrifugal fan system of the range hood 100 itself, that is, there is no need to add a new power source, which simplifies the structure and reduces the cost.

[0079] refer to Figure 7 It is understood that a plurality of first oil inlet holes 11111 and a plurality of first oil outlet holes 11121 are respectively spaced apart and evenly disposed on the upper and lower surfaces of the first connector 112; a plurality of second oil inlet holes 11112 and a plurality of second oil outlet holes 11122 are respectively spaced apart and evenly disposed on the upper and lower surfaces of the second connector 113.

[0080] In this embodiment, providing multiple first oil inlet holes 11111, multiple first oil outlet holes 11121, multiple second oil inlet holes 11112, and multiple second oil outlet holes 11122 is beneficial to improving the efficiency of oil collection and leakage in the oil collection chamber.

[0081] It should be noted that the oil leak hole and the oil inlet hole 1111 are the same size and the same number, and they correspond one-to-one.

[0082] This utility model also provides a range hood 100, which includes the above-mentioned anti-drip device, and the anti-drip device is installed on the main body.

[0083] refer to Figure 1 and Figure 2 It is understood that the oil collecting cavity is set in a direction perpendicular to the direction of gravity, and the smoke baffle has a first end and a second end along the setting direction of the oil collecting cavity, and the oil collecting cavity extends from the first end of the smoke baffle to the second end of the smoke baffle.

[0084] In the embodiment, the oil collecting cavity is arranged in a manner that is conducive to maximally receiving oil drops on the smoke baffle.

[0085] It should be noted that the oil collecting cavity is arranged at the lower part of the smoke baffle to receive oil drops on the smoke baffle as much as possible; in addition, the oil collecting cavity has a certain gap with the end edges of the first end and the second end of the smoke baffle.

[0086] In summary, in the oil drop receiving device provided in the embodiment, the arrangement of the oil receiving mechanism 11 is conducive to receiving oil drops on the oil baffle and preventing the oil drops from falling on the user's table top; the oil collecting cavity is used to contain oil drops, the oil receiving hole 1111 is conducive to causing oil drops on the smoke baffle to flow into the oil collecting cavity under the action of gravity, and the oil leakage hole is conducive to causing oil drops in the oil collecting cavity to flow into the oil cup, thereby preventing the oil drops from falling on the user's table top; when the smoke baffle is in an open state, oil fume is liquefied on the smoke baffle to form oil drops.

[0087] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship of the device or element in the normal use, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element must have a particular orientation, structure and operation at any time, therefore it cannot be understood as a limitation on the present application in this respect.

[0088] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, but these changes and modifications all fall within the protection scope of the present application.

Claims

1. An oil drip prevention device for a range hood, the range hood including a smoke deflector and an oil cup, characterized by, The oil drip-proof device comprises an oil receiving mechanism for being mounted on one side of the smoke baffle towards the inside of the extractor hood; The oil receiving mechanism comprises an oil collecting cavity having an oil receiving hole and an oil leaking hole, the oil receiving hole is located on the upper surface of the oil collecting cavity, and the oil leaking hole is located on the lower part of the oil collecting cavity; When the smoke baffle is in the open state, the oil receiving hole is in the open state to enable the oil on the smoke baffle to enter the oil collecting cavity through the oil receiving hole; The oil in the oil collecting cavity is configured to be able to enter the oil cup of the extractor hood through the oil leaking hole.

2. The oil drip prevention device according to claim 1, characterized by The oil receiving mechanism comprises a first connecting piece and a second connecting piece, the first connecting piece is arranged on the wall surface of the smoke baffle, and the second connecting piece is nested in the inside of the first connecting piece and encloses the oil collecting cavity with the first connecting piece; The oil receiving hole comprises a first oil receiving hole and a second oil receiving hole, and the oil leaking hole comprises a first oil leaking hole and a second oil leaking hole; The first oil receiving hole and the first oil leaking hole are respectively located on the upper surface and the lower surface of the first connecting piece, and the second oil receiving hole and the second oil leaking hole are respectively located on the upper surface and the lower surface of the second connecting piece; When the oil receiving hole is in the open state, the first oil receiving hole and the second oil receiving hole are in communication; When the oil in the oil collecting cavity is configured to be able to enter the oil cup through the oil leaking hole, the first oil leaking hole and the second oil leaking hole are in communication.

3. The oil drip prevention device according to claim 2, characterized by When the oil receiving hole is in the open state, the first oil leaking hole and the second oil leaking hole are not in communication; When the smoke baffle is in the closed state, the first oil leaking hole and the second oil leaking hole are in communication; The first oil leaking hole and the second oil leaking hole are located above the oil cup, so that the oil in the oil collecting cavity is transferred to the oil cup from the second oil leaking hole and the first oil leaking hole under the action of gravity; or, the oil receiving mechanism further comprises an external pipeline, one end of the external pipeline is connected to and communicates with the first oil leaking hole, and the other end of the external pipeline leads to the oil cup.

4. The oil drip guard of claim 2, wherein The oil receiving mechanism further comprises an external pipeline, one end of the external pipeline is connected to the first oil leaking hole, and the other end of the external pipeline leads to the oil cup; The external pipeline is provided with a valve for opening or closing the external pipeline, and when the external pipeline is in the open state, the first oil leaking hole, the second oil leaking hole and the external pipeline are in communication.

5. The oil drip prevention device according to claim 3 or 4, characterized in that The oil receiving mechanism further comprises a driving assembly, the driving assembly can act on one end of the second connecting piece to enable the second connecting piece to be movable relative to the first connecting piece, to allow or prevent the first oil receiving hole and the second oil receiving hole to be in communication, and to allow or prevent the first oil leaking hole and the second oil leaking hole to be in communication.

6. The oil drip guard according to claim 5, wherein The second connecting piece has a first end and a second end in the axial direction; The oil receiving mechanism further comprises a resilient member arranged and connected between the inner wall surface of the first connecting piece and the terminal surface of the first end, and the driving assembly can act on the second end. When the smoke baffle is switched from the open state to the closed state, the driving assembly drives the second connecting piece to move towards the inside of the first connecting piece, and the elastic piece is in a compressed state.

7. The oil drip guard of claim 5, wherein The driving assembly comprises a pushing piece, an air pipe and a power source, the pushing piece is arranged between the second connecting piece and the air pipe, and the air pipe is connected to the power source. The power source is a centrifugal fan system of the range hood, or the power source is a power source independent of the centrifugal fan system and externally connected to the body of the range hood.

8. The oil drip guard of claim 2, wherein A plurality of the first oil receiving holes and a plurality of the first oil leaking holes are respectively and uniformly arranged on the upper surface and the lower surface of the first connecting piece. A plurality of the second oil receiving holes and a plurality of the second oil leaking holes are respectively and uniformly arranged on the upper surface and the lower surface of the second connecting piece.

9. A range hood, said range hood comprising a body, characterized in that The range hood further comprises the oil drip prevention device according to any one of claims 1-8, and the oil drip prevention device is mounted on the body.

10. The hood according to claim 9, characterized in that The setting direction of the oil collecting cavity is perpendicular to the direction of gravity, the smoke baffle has a first end and a second end along the setting direction of the oil collecting cavity, and the oil collecting cavity extends from the first end of the smoke baffle to the second end of the smoke baffle.

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