Oil collecting device of range hood and range hood

Abstract

The utility model discloses an oil collecting device of range hood and range hood, oil collecting device of range hood, include: oil collecting box, it includes the box body of top open mouth and set up in the bottom of box body's perforation, and oil discharging device is arranged on oil collecting box, oil discharging device includes oil discharging piece, and oil discharging piece includes the first part of the hollow upward arch, and the edge of first part is supported in the bottom in box body and is located the outer periphery of perforation, and the top of first part extends downward and forms second part, and second part passes from perforation, and second part is the hollow tubular of the open mouth of upper and lower two ends.

Description

Technical Field

[0001] This utility model relates to an oil fume purification device, and more particularly to an oil collection device for a range hood, and a range hood using the oil collection device. Background Technology

[0002] Range hoods have become an indispensable kitchen appliance in modern homes.

[0003] Existing range hoods typically use several oil drain holes on the bottom plate of the hood housing. Waste oil flows through these holes into an oil collection box hanging below the bottom plate, which collects the waste oil and is periodically emptied. This method has the following problems: ① High cost: The entire sheet metal oil box is the same length as the width of the range hood body, resulting in high material and processing costs; ② Invisibility: The amount of oil in the oil collection box is not visible, and it will overflow if not cleaned for a long time; ③ Inconvenient oil emptying: Waste oil is very likely to spill when moving the oil box with both hands; ④ Improper waste oil disposal: Waste oil is usually poured into the sink, and the grease can easily clog the drain pipes.

[0004] To address the aforementioned issues, the applicant has made improvements. Referring to Chinese Patent Application No. 202010265399.1, an oil collection structure is disclosed, comprising an oil collection body with an open upper end and an oil discharge device. The oil discharge device includes a flexible tube installed inside the oil collection body. The flexible tube is hollow with openings at both the upper and lower ends. The oil discharge device also includes a connector capable of pulling down the upper end of the flexible tube to discharge waste oil from the oil collection body. The bottom of the oil collection body has mounting holes for the flexible tube and connector to pass through.

[0005] However, this oil collection structure requires a separate liquid level detection mechanism to detect the oil level in the oil cup, which is complex and costly. Its flexible tube is hollow and nearly cylindrical. When the oil is stored, the oil pressure is the greatest at the bottom and gradually decreases upward, causing the bottom of the flexible tube to be under the greatest force and sink inward. When oil needs to be drained, the flexible tube cannot be pulled down smoothly, and normal oil drainage cannot be achieved. Utility Model Content

[0006] The first technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing an oil collection device for a range hood with a simple structure that provides a full-liquid reminder.

[0007] The second technical problem to be solved by this utility model is to provide an oil collection device for a range hood to address the shortcomings of the existing technology and ensure normal oil drainage.

[0008] The third technical problem to be solved by this utility model is to provide a range hood that uses the above-mentioned oil collection device.

[0009] The technical solution adopted by this utility model to solve the first technical problem mentioned above is: an oil collection device for a range hood, comprising:

[0010] An oil collection box, comprising an open-topped box body and a perforation at the bottom of the box body; and

[0011] An oil draining device is installed on the oil collection box;

[0012] Its features are:

[0013] The oil draining device includes an oil draining component, which includes a hollow, upwardly arched first part. The edge of the first part is supported at the bottom of the box and located on the outer periphery of the perforation. The top of the first part extends downward to form a second part, which passes through the perforation. The second part is a hollow tube with openings at both the top and bottom.

[0014] Therefore, the top of the first part can be used as a liquid level warning line. When the liquid level in the oil collection box rises to the top of the first part, it will drip out from the hollow second part (oil guide pipe) to warn the user that the oil box is full, thus reminding them to drain the oil. There is no need to set up a separate liquid level detection component. The structure is simple and the cost is low.

[0015] The technical solution adopted by this utility model to solve the second technical problem mentioned above is as follows: the oil draining device further includes a first connecting member, a second connecting member, and a third connecting member. The first connecting member and the second connecting member are locked together with the body of the oil collection box. The third connecting member is restricted in its vertical position by the first connecting member and the second connecting member. The third connecting member can rotate relative to the first connecting member and the second connecting member about an axis extending vertically. The second part of the oil draining member passes through the third connecting member and is threadedly connected to the third connecting member. Thus, the rotation of the third connecting member allows the oil draining member to be in the following state:

[0016] In the oil storage state, the edge of the first part of the oil discharge component and the bottom of the oil collection box are directly or indirectly in contact;

[0017] In the oil discharge state, the oil discharge component rises relative to the oil storage state, and a gap for oil discharge is formed between the edge of the first part and the bottom of the box.

[0018] The first and second connectors are locked to the oil collection box, and the upper and lower positions of the third connector are limited by these two connectors so that it can only rotate. The third connector and the second part of the oil discharge component are then threaded together, which allows the oil discharge component to be raised and lowered to switch between oil storage and oil discharge states. The operation is simple and is not affected by whether the oil discharge component is subjected to pressure deformation, and it always maintains normal use.

[0019] Furthermore, the first connector includes a first connecting portion and an annular first flange extending outward from the top of the first connecting portion. The first connecting portion passes through a perforation, and the first flange is supported at the bottom of the housing. The outer edge of the first portion of the oil drain is located on the outer periphery of the first flange, and the second portion of the oil drain passes through the first connector and protrudes downward from the first connector.

[0020] The third connector is disposed at the bottom of the first connector. A first oil drain channel is formed in the first connector. The connector includes a second oil drain channel that is in fluid communication with the first oil drain channel. The second oil drain channel penetrates the lower end face of the third connector.

[0021] Therefore, when the oil is in the draining state, the oil can flow out through the gap between the draining part and the bottom of the oil collection box and be discharged through the first and second connecting parts. The oil passages are all located inside the third connecting part, and the outside of the third connecting part can be held during operation so that the oil will not get on your hands.

[0022] Furthermore, to facilitate locking of the first and second connectors with the oil collection box, the second connector includes a second connecting portion and an annular second flange extending inward from the bottom of the second connecting portion. The top of the second connecting portion abuts against the bottom of the oil collection box. The second connecting portion is located on the outer periphery of the first connecting portion of the first connector and the two are threadedly connected, thereby pressing the first connector downward into the oil collection box.

[0023] The third connector includes a third connecting portion and an annular third flange extending outward from the top of the third connecting portion. The third flange presses against the upper surface of the second flange of the second connector, thereby defining the vertical position of the third connector.

[0024] Furthermore, to prevent oil from flowing back outwards from the contact surfaces of the first and third connectors during oil discharge, an upwardly recessed cut is formed at the bottom of the first connecting portion of the first connector, and a slope is formed on the top surface of the third flange of the third connector. The outer periphery of the slope is higher than the inner periphery of the slope, and the outer periphery of the slope is located below the cut. The inner periphery of the slope forms the edge of the opening of the second oil discharge channel.

[0025] Furthermore, to increase the sealing between the oil drain component and the bottom of the oil collection box in the oil storage state, the bottom of the oil collection box has a downwardly recessed step, and the perforation is provided on the step.

[0026] The oil draining device also includes a pad, which is annular and disposed on the stepped portion. The pad is pressed against the edge of the first part of the oil draining member and under the first flange of the first connecting member.

[0027] Furthermore, the oil collection device also includes a collection bag, and the bottom outer side of the oil collection box is provided with a hook for hanging the collection bag, and the opening of the collection bag is directly opposite the oil discharge device.

[0028] Oil can be collected using collection bags made from discarded plastic bags, which can be recycled at designated locations to address the problem of oil pollution.

[0029] Preferably, the first part of the oil drain component is an upwardly arched hemispherical shape, which can withstand great pressure and the force can be evenly distributed in all directions. It is relatively strong and not easy to collapse or deform, which can ensure the stability of the liquid level warning line.

[0030] The technical solution adopted by this utility model to solve the third technical problem mentioned above is: a range hood, characterized in that: it applies the oil collection device as described above.

[0031] Compared with the prior art, the advantages of this utility model are as follows: the top of the first part can be used as a liquid level warning line. When the liquid level in the oil collection box rises to the top of the first part, it drips out from the hollow second part (oil guide pipe), warning the user that the oil box is full and thus reminding them to drain the oil. There is no need to set up a separate liquid level detection component, the structure is simple and the cost is low; the first and second connecting parts are locked to the oil collection box, and the two connecting parts are used to limit the vertical position of the third connecting part so that it can only rotate. The third connecting part is then threadedly connected to the second part of the oil draining part, which allows the oil draining part to switch between oil storage and oil draining states by raising and lowering. The operation is simple and is not affected by whether the oil draining part is under pressure or deformation, and it always maintains normal use. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the oil collection device according to an embodiment of the present utility model;

[0033] Figure 2 This is a schematic diagram of the oil collection device according to an embodiment of the present invention (and...). Figure 1 (Different perspectives);

[0034] Figure 3 This is a cross-sectional view of the oil collection device in the oil discharge state according to an embodiment of the present utility model (with the collection bag hidden);

[0035] Figure 4 for Figure 3 A magnified schematic diagram of part I;

[0036] Figure 5 This is a schematic diagram of the oil collection box of the oil collection device according to an embodiment of the present utility model;

[0037] Figure 6 This is a schematic diagram of the oil discharge device of the oil collection device according to an embodiment of the present utility model;

[0038] Figure 7 This is an exploded view of the oil discharge device of the oil collection device according to an embodiment of the present utility model;

[0039] Figure 8 This is a partial cross-sectional view of the oil collection device in the oil storage state according to an embodiment of the present invention. Detailed Implementation

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0041] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," 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. They 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. Since the embodiments disclosed in this utility model can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0042] See Figures 1 to 7 An oil collection device for a range hood includes an oil collection box 1 and an oil discharge device 2. The oil collection box 1 can be a box independent of the range hood's housing, or it can be the bottom plate of the range hood's housing, as disclosed in Embodiment 2 of Chinese Patent Application No. 202010265399.1 in the background art. This can avoid the repetitive design of the oil cup and reduce costs.

[0043] The oil draining device 2 is installed on the oil collection box 1. The oil collection box 1 includes a box body 11 with an open top and a stepped portion 12 formed at the bottom of the box body 11. The stepped portion 12 is recessed downward relative to the bottom of the box body 11. The stepped portion 12 can be circular. A through hole 13 is provided on the stepped portion 12. The oil draining device 2 is installed at the through hole 13. The through hole 13 can also be circular.

[0044] The oil draining device 2 includes a first connector 21, a second connector 22, a third connector 23, an oil draining component 24, and a pad 25. The oil draining component 24 includes a hollow, upwardly arched first portion 241 that covers the stepped portion 12. The first portion 241 has an opening on the side opposite to the stepped portion 12, and its edge is located around the periphery of the perforation 13. The oil draining component 24 also includes a second portion 242 extending downward from the top of the first portion 241. The second portion 242 is a hollow tube with openings at both the top and bottom, forming an oil guide tube.

[0045] As the amount of oil in the oil collection box 1 increases, the liquid level will gradually rise until it reaches the top of the oil drain component 24. At this time, the oil will fall along the second part 242 of the oil drain component 24 and drip (liquid droplets rather than a large amount of oil flowing down) onto the stove surface so that the user can notice and then perform the oil draining operation to remind the user to empty the oil.

[0046] The first part 241 can be dome-shaped, hemispherical, etc., and can withstand great pressure. Preferably, when a force is applied to any part of a sphere, the force can be evenly distributed in all directions, so a sphere is more robust than any other shape.

[0047] The first connector 21 includes a first connecting portion 211 and an annular first flange 212 extending outward from the top of the first connecting portion 211. The first connecting portion 211 is a generally hollow cylinder, and the first flange 212 extends radially outward from the top of the first connecting portion 211. The first connecting portion 211 can pass through the through hole 13, and is at least partially located below the through hole 13. The first flange 212 is supported on the stepped portion 12, and the outer edge of the first portion 241 of the oil drain member 24 is located on the outer periphery of the first flange 212. The second portion 242 of the oil drain member 24 passes through the first connector 21 and protrudes downward from the first connector 21. The oil drain member 24 can slide up and down relative to the first connector 21. A first external thread 213 is formed on the outer peripheral wall of the first connecting portion 211.

[0048] The second connector 22 includes a second connecting portion 221 and an annular second flange 222 extending inward from the bottom of the second connecting portion 221. The second connecting portion 221 is a generally hollow cylinder, and the second flange 222 extends radially inward from the bottom of the second connecting portion 221. The second connector 22 is disposed on the outer periphery of the first connector 21, and its top can abut against the bottom of the oil collection box 1. A first internal thread 223 is formed on the inner peripheral wall of the second connecting portion 221, and the first internal thread 223 is threadedly connected to the first external thread 213 of the first connector 21, thereby allowing the first connector 21 to be pressed downward into the oil collection box 1.

[0049] A sealing gasket 25 can be provided between the oil drain member 24 and the stepped portion 12. The gasket 25 is annular, disposed on the stepped portion 12, and pressed against the edge of the first portion 241 of the oil drain member 24 and under the first flange 212 of the first connector 21. Thus, through the cooperation of the first connector 21 and the second connector 22, oil leakage from the perforation is prevented.

[0050] The third connector 23 includes a third connecting portion 231 and an annular third flange 232 extending outward from the top of the third connecting portion 231. The third connecting portion 231 is a generally hollow cylinder, and the third flange 232 extends radially outward from the top of the third connecting portion 231. The third connector 23 is disposed at the bottom of the first connector 21, and its third flange 232 presses against and supports the upper surface of the second flange 222 of the second connector 22, thereby limiting the vertical position of the third connector 23 so that the third connector 23 can only rotate. A second internal thread 233 is formed on the inner peripheral wall of the third connecting portion 231. The second part 242 of the oil drain member 24 extends into the third connecting portion 231 and is located within the third connecting portion 231. A second external thread 243 is formed on its outer periphery. The second internal thread 233 and the second external thread 243 cooperate. Since the vertical movement of the third connector 23 is restricted, when the third connector 23 rotates, the oil drain member 24 can move up and down. Normally, in the installed state, the rotation axis of the third connector 23 extends vertically.

[0051] A first oil discharge channel 214 is formed within the first connecting portion 221, penetrating both the upper and lower end faces of the first connecting portion 221. A second oil discharge channel 234 is also formed within the third connecting portion 231, penetrating both the upper and lower end faces of the third connecting portion 231. The first oil discharge channel 214 and the second oil discharge channel 234 are vertically aligned, thus achieving fluid communication.

[0052] The bottom of the first connecting portion 221 of the first connector 21 has an upwardly recessed cutout 215. The top surface of the third flange 232 of the third connector 23 has an inclined surface 235. The outer periphery of the inclined surface 235 is higher than the inner periphery of the inclined surface 235. The outer periphery of the inclined surface 235 is located below the cutout 215. The inner periphery of the inclined surface 235 forms the edge of the opening of the second oil discharge channel 234. Therefore, even if the oil in the first oil drain channel 214 flows down onto the inclined surface 235, it can flow into the second oil drain channel 234 along the inclined surface 235. Even if some of it cannot flow into the second oil drain channel 234 in time, it can prevent further outward diffusion when it flows to the location corresponding to the cut 215 (the bottom surface of the first connecting part 211 and the top surface of the third flange 232 are in close contact outside the cut 215). The oil accumulates at the cut 215 and flows into the second oil drain channel 234 along the inclined surface 235, which can prevent the oil from flowing back radially outward from the contact surface of the first connecting part 21 and the third connecting part 23.

[0053] The first connector 21, the second connector 22, the third connector 23, and the oil draining component 24 mentioned above can all be made of plastic.

[0054] When in oil storage condition, see Figure 8 By operating the third connector 23, the edge of the first part 241 of the oil draining component 24 is pressed tightly against the pad 25. When oil drainage is needed, the third connector 23 is operated again, causing the oil draining component 24 to lift upwards, as... Figure 4 As shown, at this time, the edge of the first part 241 of the oil draining component 24 leaves the pad body 25, so that the oil in the oil collection box 1 passes through the gap between the two and enters the first oil draining channel 214 of the first connector 21 (due to the setting of the pad body 25, the oil will not enter between the first connector 21 and the second connector 22), and then is discharged downward through the second oil draining channel 234.

[0055] In this invention, since the third connector 23 is operated by contacting its outer peripheral surface, the hand operating the third connector 23 will not come into contact with the oil, regardless of whether the oil drips down from the oil drain 24 or drains down from the third connector 23.

[0056] The oil collection device also includes a collection bag 3, which can be a regular discarded plastic bag. A hook 14 can be installed on the outer bottom of the body 11 of the oil collection box 1. The hook 14 can have two hooks located on opposite sides of the perforation 13. The handle of the collection bag 3 can be hung on the hook 14. The opening of the collection bag 3 is directly opposite the oil draining device 2. Once the oil draining device 2 is in the draining state, no one needs to wait. After the oil is drained, the oil draining device 2 returns to the oil storage state. The collection bag 3 can then be tightened and placed separately in the kitchen waste bins, preventing contamination of water pipes or mixing with other waste, making it convenient for users.

[0057] The term "fluid connectivity" as used in this utility model refers to the spatial relationship between two components or parts (hereinafter referred to as the first part and the second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow from the first part along a flow path and / or be transported to the second part. This can be a direct connection between the first part and the second part, or an indirect connection between the first part and the second part through at least one third party. The third party can be a fluid channel such as a pipe, channel, conduit, guide, hole, or groove, or a chamber or combination thereof that allows fluid to flow through.

Claims

1. An oil collection device for a range hood, comprising: The oil collection box (1) includes a box body (11) with an open top and a perforation (13) at the bottom of the box body (11); as well as An oil draining device (2) is installed on an oil collection box (1); Its features are: The oil draining device (2) includes an oil draining component (24), which includes a hollow, upwardly arched first part (241). The edge of the first part (241) is supported at the bottom inside the box (11) and located on the outer periphery of the perforation (13). The top of the first part (241) extends downward to form a second part (242), which passes through the perforation (13). The second part (242) is a hollow tube with openings at both the top and bottom.

2. The oil collection device of the range hood according to claim 1, characterized in that: The oil draining device (2) further includes a first connector (21), a second connector (22), and a third connector (23). The first connector (21) and the second connector (22) are locked together with the housing (11) of the oil collection box (1). The third connector (23) is restricted in its vertical position by the first connector (21) and the second connector (22). The third connector (23) can rotate relative to the first connector (21) and the second connector (22) about an axis extending vertically. The second part (242) of the oil draining component (24) passes through the third connector (23) and is threadedly connected to the third connector (23). Thus, the rotation of the third connector (24) can make the oil draining component (24) be in the following state: In the oil storage state, the edge of the first part (241) of the oil discharge component (24) and the bottom of the box body (11) of the oil collection box (1) are directly or indirectly attached to each other; In the oil discharge state, the oil discharge component (24) rises relative to the oil storage state, and a gap for oil discharge is formed between the edge of the first part (241) and the bottom of the box body (11).

3. The oil collection device of the range hood according to claim 2, characterized in that: The first connector (21) includes a first connecting portion (211) and an annular first flange (212) extending outward from the top of the first connecting portion (211). The first connecting portion (211) passes through the perforation (13), and the first flange (212) is supported at the bottom inside the housing (11). The outer edge of the first part (241) of the oil drain member (24) is located on the outer periphery of the first flange (212), and the second part (242) of the oil drain member (24) passes through the first connector (21) and protrudes downward from the first connector (21). The third connector (23) is disposed at the bottom of the first connector (21). A first oil drain channel (214) is formed in the first connecting part (221). The connector (23) includes a second oil drain channel (234) that is in fluid communication with the first oil drain channel (214). The second oil drain channel (234) penetrates the lower end face of the third connector (23).

4. The oil collection device of the range hood according to claim 3, characterized in that: The second connector (22) includes a second connecting portion (221) and an annular second flange (222) extending inward from the bottom of the second connecting portion (221). The top of the second connecting portion (221) abuts against the bottom of the oil collection box (1). The second connecting portion (221) is located on the outer periphery of the first connecting portion (211) of the first connector (21) and the two are threaded together, thereby causing the first connector (21) to press downward into the oil collection box (1). The third connector (24) includes a third connecting portion (231) and an annular third flange (232) extending outward from the top of the third connecting portion (231). The third flange (232) presses against the upper surface of the second flange (222) of the second connector (22), thereby defining the vertical position of the third connector (23).

5. The oil collection device of the range hood according to claim 4, characterized in that: The bottom of the first connecting part (221) of the first connector (21) is formed with an upwardly recessed cut (215), and the top surface of the third flange (232) of the third connector (23) is formed with a slope (235). The outer periphery of the slope (235) is higher than the inner periphery of the slope (235), and the outer periphery of the slope (235) is located below the cut (215). The inner periphery of the slope (235) forms the edge of the opening of the second oil discharge channel (234).

6. The oil collection device of the range hood according to claim 3, characterized in that: The bottom of the oil collection box (1) has a recessed step (12), and the perforation (13) is provided on the step (12). The oil draining device (2) also includes a pad (25), which is annular and disposed on the step portion (12). The pad (25) is pressed against the edge of the first part (241) of the oil draining member (24) and under the first flange (212) of the first connector (21).

7. The oil collection device of the range hood according to any one of claims 2 to 6, characterized in that: The oil collection device also includes a collection bag (3). The bottom outer side of the oil collection box (1) is provided with a hook (14) for hanging the collection bag (3). The opening of the collection bag (3) is directly opposite the oil discharge device (2).

8. The oil collection device of the range hood according to any one of claims 1 to 6, characterized in that: The first part (241) of the oil draining component (24) is an upwardly arched hemispherical shape.

9. A range hood, characterized in that: The application includes an oil collection device as described in any one of claims 1 to 8.

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