Oil cup device and range hood

Abstract

The utility model relates to an oil cup device and a range hood, and the oil cup device comprises an oil cup body which is provided with an oil storage chamber for storing oil; the oil cup further comprises a liquid discharging pipe arranged on the oil cup body, the liquid discharging pipe is integrally in a U shape and is provided with a first port and a second port which are opposite in the length direction, the first port extends into the oil storage cavity of the oil cup body, a distance is formed between the first port and the bottom wall of the oil cup body in the vertical direction, and the second port is communicated with the first port. The second port is located outside the oil cup body, a plug capable of being taken down is further arranged at the second port, and the turning position of the liquid discharging pipe is higher than the positions where the first port and the second port are located and lower than the top of the oil cup. The oil cup device has the advantages that the frequency of taking and placing the oil cup can be effectively reduced, the difficulty of cleaning the oil cup is reduced, and the time cost of cleaning is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cups, in particular to an oil cup device and a range hood. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. Existing range hoods are equipped with oil cups of varying sizes, but the storage space of the oil cup is limited. After a user has used the range hood for a period of time, the oil cup will be full of oil, and the user needs to remove the oil cup to pour out the oil in the full or nearly full oil cup. If the liquid is too much or too heavy, it is very easy for the oil to spill when the oil cup is removed. At the same time, the oil cup needs to be cleaned again and then reinstalled on the range hood. However, the cleaning process is relatively troublesome after the oil stains adhere to the inner wall. This process greatly affects the user experience. For this reason, there are many improvement schemes in existing patents, most of which are to detect the liquid capacity in the oil cup to remind the user to pour out the oil or to install a cleaning device to clean the oil cup to achieve the purpose of cleaning the oil cup. For example, the "Oil cup liquid level detection device and range hood using the oil cup liquid level detection device" disclosed in application number CN202021507427.8 (authorization announcement number: CN212988505U) and the "Oil cup device and range hood using the oil cup device" with application number CN201921905306.6 (authorization announcement number: CN211372536U) have only made similar disclosures.

[0003] However, in general, most oil cup devices and range hoods still require the oil cup to be removed and dumped back to its original position many times, which will bring a bad user experience during the frequent removal of the oil cup. On the other hand, during the oil cup cleaning process, the oil stains will adhere tightly to the surface of the oil cup, which is relatively difficult to clean, and also affects the user experience. Utility Model Content

[0004] The first technical problem to be solved by the utility model is to provide an oil cup device which can effectively reduce the frequency of taking and putting the oil cup in view of the current status of the prior art.

[0005] The second technical problem to be solved by the present invention is to provide an oil cup device which can effectively reduce the difficulty of cleaning the oil cup and reduce the time cost of cleaning in view of the current status of the prior art.

[0006] The third technical problem to be solved by the utility model is to provide a range hood adopting the above-mentioned oil cup device in view of the current status of the prior art.

[0007] The technical solution adopted by the utility model to solve the first technical problem is: an oil cup device, comprising:

[0008] The oil cup body has an oil storage chamber for storing oil;

[0009] It further includes a drain pipe provided on the oil cup body. The drain pipe is integrally U-shaped and has a first port and a second port opposite to each other in the length direction. The first port extends into the oil storage chamber of the oil cup body and has a spacing in the vertical direction from the bottom wall of the oil cup body. The second port is located outside the oil cup body, and a removable sealing plug is also provided at the second port. The height of the turning position of the drain pipe is higher than the heights of the first port and the second port and lower than the top of the oil cup.

[0010] The technical solution adopted by the present utility model to solve the second technical problem is as follows: In order to reduce the difficulty of cleaning the inner wall of the oil cup, an isolation liquid is stored in the area between the first port and the bottom wall of the oil cup body. The density of the isolation liquid is lower than that of the oil liquid and is located below the oil liquid. Using the isolation liquid enables the oil liquid to be in the upper layer, which can facilitate and thoroughly drain the oil liquid, and also avoids the contact between the oil stain and the bottom wall of the oil cup, reducing the contact area between the inner wall of the oil cup and the oil stain and facilitating subsequent cleaning.

[0011] Considering that too much isolation liquid will occupy the effective capacity of the oil cup, the isolation liquid does not need to be too much, but it should at least cover the bottom wall of the oil cup body and reach a certain thickness. The spacing between the position where the first port is located and the bottom wall of the oil cup body is denoted as h, and the overall height of the oil cup body is denoted as H. Among them, 1 / 5 ≤ h / H ≤ 1 / 2.

[0012] In order to further improve the convenience of cleaning the inner wall of the oil cup, an oil-repellent coating is applied on the inner wall of the oil cup body.

[0013] As an improvement, the opening directions of the first port and the second port are both downward.

[0014] In order to facilitate the installation and fixation of the drain pipe, an opening through which the drain pipe passes is provided on the side wall of the oil cup body, and a fixing clip for fixing the drain pipe is also provided on the inner wall of the oil cup body.

[0015] In order to facilitate the adjustment of the height of the first port of the drain pipe relative to the bottom wall of the oil cup body, at least a section of the oil pipe of the drain pipe located inside the oil cup body is a telescopic pipe with adjustable length.

[0016] Generally speaking, the height of the first port of the drain pipe can be adjusted manually. However, in order to improve the convenience of its height adjustment, a driving mechanism is further included and provided on the oil cup body. The power output end of the driving mechanism is connected to the lower end of the telescopic pipe and can drive the telescopic pipe to move telescopically in the vertical direction.

[0017] As an improvement, in order to simplify the structure of the driving mechanism, the driving mechanism includes an electric push rod, the telescopic rod of which extends vertically up and down, and the end of the telescopic rod is connected to the lower end of the telescopic tube through a connecting rod.

[0018] In order to realize the automatic lifting of the first port of the liquid discharge pipe driven by the driving mechanism, a controller and a liquid level identification device for detecting the change of the liquid level in the oil cup body are further included. The liquid level identification device and the driving mechanism are both electrically connected to the controller. The controller obtains the liquid level change signal transmitted by the liquid level identification device, and controls the driving mechanism to act according to the liquid level change signal to drive the lower end of the telescopic tube to move down to a position adjacent to the bottom wall of the oil cup body;

[0019] The above liquid level change signal is the number of times that the liquid level in the oil cup body is lower than the set liquid level within the set time.

[0020] Since there is still some liquid (i.e., the isolation liquid) at the bottom of the oil cup, in the above cyclic liquid discharge process, the lower isolation liquid cannot be discharged. After a long time, there is still a situation where the isolation liquid is contaminated and emits odors. Therefore, the isolation liquid needs to be regularly discharged externally. The above "liquid level identification device" can be an ultrasonic liquid level detector located above the oil cup, such as installed at the lower part of the range hood. When the number of times it detects that the liquid level drops to the bottom of the hose (in the non-telescopic case) reaches 4 times, that is, after the oil discharge cycle reaches 4 times, the driving mechanism receives a signal to stretch the telescopic tube to the bottom, and the isolation liquid will also be discharged in the next oil discharge cycle. When the ultrasonic liquid level detector detects that the liquid level reaches the bottom most, it can remind the user to clean the oil cup by means of sound and light alarm.

[0021] The technical solution adopted by the present utility model to solve the third technical problem is: a range hood, including a machine body and an oil cup provided on the machine body, and the above oil cup device.

[0022] Compared with the prior art, the advantages of the present utility model are as follows: The first port of the drain pipe of the present utility model extends into the oil storage chamber of the oil cup body, and there is a spacing in the vertical direction between the first port and the bottom wall of the oil cup body. The second port is located outside the oil cup body, and a plug that can be removed is provided at the second port. In the initial state, the plug blocks the second port. When the highest point of the oil liquid level exceeds the highest point (turning position) of the drain pipe, a small amount of oil liquid will flow to the outer section of the drain pipe. At this time, the plug can be opened. Due to the siphon phenomenon, the oil liquid in the oil cup body will be automatically discharged externally. The user can directly use an external container to receive it and pour it out of the machine case without disassembling the oil cup, reducing the number of times of taking and placing the oil cup. On the other hand, there is a certain spacing between the first port of the drain pipe and the bottom wall of the oil cup body. A certain amount of isolation liquid (which can be water) can be poured into the oil cup. The amount of the isolation liquid reaches or slightly exceeds the first port of the drain pipe. The isolation liquid and the oil liquid will form a layer. During the above drainage process, the upper layer of oil liquid is always discharged. After the external drainage process ends, the liquid level in the oil cup will basically return to the liquid level of the isolation liquid, keeping the bottom wall of the oil cup in contact with the isolation liquid all the time and avoiding contact with the oil liquid. After several cycles, only the inner side of the oil cup needs to be cleaned to a certain extent, reducing the difficulty of cleaning the oil cup and the time cost of cleaning. Description of the Drawings

[0023] Figure 1 Schematic perspective view of the oil cup device according to an embodiment of the present utility model;

[0024] Figure 2 Another perspective schematic perspective view of the oil cup device according to an embodiment of the present utility model;

[0025] Figure 3 Schematic cutaway perspective view of the oil cup device according to an embodiment of the present utility model;

[0026] Figure 4 Cross-sectional view of the oil cup device according to an embodiment of the present utility model. Detailed Embodiment

[0027] The present utility model will be further described in detail below in conjunction with the embodiments of the drawings.

[0028] In the description and claims of the present utility model, terms indicating directions are used, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., to describe various exemplary structural parts and components of the present utility model. However, the use of these terms herein is only for the purpose of convenient description and is determined based on the exemplary 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.

[0029] Figures 1 - 4 Fig. shows a preferred embodiment of the oil cup device and the range hood of the present utility model. The range hood includes a housing and a centrifugal fan disposed inside the housing. The housing generally includes a fan frame and a smoke collecting hood disposed at the bottom of the fan frame. The inner cavity of the fan frame is communicated with the inner cavity of the smoke collecting hood. An air inlet is formed on the smoke collecting hood, and external flue gas can enter the smoke collecting hood through the air inlet. The centrifugal fan is disposed inside the fan frame. When the centrifugal fan operates, a negative pressure is generated, and external cooking fumes can be sucked into the smoke collecting hood through the air inlet. An oil cup is disposed at the bottom of the smoke collecting hood. The oil cup 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.

[0030] The oil cup device of this embodiment includes an oil cup body 10, a drain pipe 20, a plug 24, a liquid level recognition device, and a driving mechanism.

[0031] The oil cup body 10 has an oil storage chamber 100 with an open top, which includes a bottom wall and a side wall extending upward from the outer peripheral edge of the bottom wall. An oil-repellent coating is coated on the inner wall of the oil storage chamber 100 of the oil cup body 10. The oil-repellent coating preferably adopts an oil-repellent nano-coating to reduce the adhesion of oil liquid on the inner side of the oil cup body 10.

[0032] The side wall of the oil cup body 10 has an opening 102 that penetrates through the inside and outside. The drain pipe 20 is integrally in an inverted U shape and is inserted into the opening 102 of the oil cup body 10. Among them, the turning position of the drain pipe 20 is the highest position, and this position is connected to the perforation of the oil cup body 10. Thus, the drain pipe 20 is divided into two sections by the corresponding side wall of the oil cup body 10. One section is located inside the oil storage chamber 100 of the oil cup body 10, and the other section is located outside the oil cup body 10. Specifically, the first port 21 and the second port 22 opposite to each other in the length direction of the drain pipe 20 are also respectively located inside and outside the oil cup body 10. Among them, the first port 21 extends into the oil storage chamber 100 of the oil cup body 10, and the second port 22 is located outside the oil cup body 10. The openings of the first port 21 and the second port 22 both face downward. See Figure 2, a plug 24 that can be removed is also provided at the second port 22 of the drain pipe 20. The plug 24 can be a flexible rubber plug to ensure that no liquid leaks from the second port 22.

[0033] The opening 102 on the side wall of the oil cup body 10 is arranged connecting to the top edge of the oil cup body 10. Thus, the height of the turning position of the drain pipe 20 is higher than the heights of the first port 21 and the second port 22, and lower than the top of the oil cup.

[0034] A fixing clip 13 is also provided inside the side wall of the oil cup body 10. The drain pipe can be clamped and fixed by the fixing clip 13 to avoid problems of shaking and falling off.

[0035] In the initial state, the plug 24 is in a state of blocking the second port 22. When the highest point of the oil liquid level exceeds the highest point (turning position) of the drain pipe 20, a small amount of oil liquid will flow to the outer section of the drain pipe 20. At this time, the plug 24 can be opened. Due to the siphon phenomenon, the oil liquid in the oil cup body 10 will be automatically drained out. The user can directly use an external container to receive it and pour it out of the machine case without disassembling the oil cup, reducing the number of times of taking and placing the oil cup.

[0036] In a preferred embodiment, at least a section of the drain pipe 20 located inside the oil cup body 10 is a telescopic pipe 23 with a length that can be adjusted telescopically. For example, a corrugated telescopic pipe 23 made of plastic material can be used. Since the length of the telescopic pipe 23 can be adjusted telescopically, it is convenient to adjust the height of the first port 21 of the drain pipe 20 relative to the bottom wall of the oil cup body 10.

[0037] In this embodiment, there is a spacing in the vertical direction between the first port 21 of the drain pipe 20 (if the telescopic pipe 23 is used, it refers to the high position when the telescopic pipe 23 is in the contracted state) and the bottom wall of the oil cup body 10. Thus, a certain amount of isolating liquid (which can be water) can be poured into the oil cup. In the initial state, the amount of the isolating liquid added only needs to reach or slightly exceed the first port 21 of the drain pipe 20. The isolating liquid and the oil liquid will form a layer. During the above-mentioned draining process, the upper layer of oil liquid is always drained out. After the draining process ends, the liquid level in the oil cup will basically return to the liquid level of the isolating liquid, keeping the bottom wall of the oil cup always in contact with the isolating liquid and avoiding contact with the oil liquid. After several cycles, only the inner side surface of the oil cup needs to be cleaned to a certain extent, reducing the difficulty of cleaning the oil cup and the time cost of cleaning.

[0038] Considering that too much isolating liquid will occupy the effective capacity of the oil cup, so, the isolating liquid does not need to be too much, but it should at least cover the bottom wall of the oil cup body 10 and reach a certain thickness. Specifically, the spacing between the position where the first port 21 is located and the bottom wall of the oil cup body 10 is denoted as h, and the overall height of the oil cup body is denoted as H. Among them, 1 / 5 ≤ h / H ≤ 1 / 2. Preferably, h / H = 1 / 4.

[0039] Generally speaking, the height of the first port 21 of the drain pipe 20 can be manually adjusted. However, to improve the convenience of its height adjustment, the length adjustment of the telescopic pipe 23 of the drain pipe 20 in this embodiment (i.e., the height position adjustment of the first port 21) is driven by a driving mechanism. Specifically, the driving mechanism includes an electric push rod 30, which is arranged inside the side wall of the oil cup body 10. The telescopic rod of the electric push rod 30 extends vertically, and the end of the telescopic rod is connected to the lower end of the telescopic pipe 23 through a horizontally extending connecting rod 31. When the electric push rod 30 operates, it can drive the telescopic pipe 23 to telescopically move in the vertical direction to adjust the height position of the first port 21.

[0040] The oil cup device of this embodiment further includes a controller and a liquid level identification device (not shown) for detecting the change in the liquid level inside the oil cup body 10. Preferably, the above-mentioned "liquid level identification device" can be an ultrasonic liquid level detector located above the oil cup body 10, such as being arranged at the lower part of the range hood (of course, an infrared detection sensor or other identification devices can also be used). The above-mentioned liquid level change signal is the number of times that the liquid level inside the oil cup body 10 is lower than the set liquid level within a set time. The set liquid level can generally be selected as a height position slightly higher than the liquid level of the isolation liquid. Both the liquid level identification device and the driving mechanism are electrically connected to the controller. The controller obtains the liquid level change signal transmitted by the liquid level identification device and controls the driving mechanism to act according to the liquid level change signal to drive the lower end of the telescopic pipe 23 to move down to a position adjacent to the bottom wall of the oil cup body 10, thereby realizing the automatic lifting of the first port 21 of the drain pipe 20 driven by the driving mechanism.

[0041] The driving mechanism is set to drive the telescopic pipe 23 to lift and lower mainly considering the need to regularly drain and add the isolation liquid. Specifically, since there is still some liquid (i.e., the isolation liquid) at the bottom of the oil cup, in the above-mentioned cyclic drainage process, the lower-layer isolation liquid cannot be drained. After a long time, there will still be a situation where the isolation liquid is contaminated and emits an odor. Therefore, the isolation liquid needs to be regularly drained externally. When the liquid level identification device detects that the number of times the liquid level drops to the bottom of the telescopic pipe 23 (when not telescoping) reaches the set number of times, such as 4 times, that is, after the oil drainage cycle reaches 4 times, the driving mechanism receives the signal and stretches the telescopic pipe 23 to the bottom to drain the isolation liquid in the next oil drainage cycle. And when the ultrasonic liquid level detector detects that the liquid level reaches the bottommost position, the user can be reminded to clean the oil cup by means of an audible and visual alarm.

Claims

1. An oil cup device, comprising: The oil cup body (10) has an oil storage chamber (100) for storing oil; The invention is characterized in that it also includes a drain pipe (20) arranged on the oil cup body (10), the drain pipe (20) being U-shaped as a whole, and having a first port (21) and a second port (22) which are opposite to each other in the length direction, the first port (21) extending into the oil storage chamber (100) of the oil cup body (10), and having a spacing with the bottom wall of the oil cup body (10) in the up and down directions, the second port (22) being located outside the oil cup body (10), and a removable sealing plug (24) being provided at the second port (22), and the height of the turning position of the drain pipe (20) being higher than the height of the positions of the first port (21) and the second port (22), and lower than the top of the oil cup.

2. The oil cup device according to claim 1, characterized in that: An isolation liquid is stored in the area between the first port (21) and the bottom wall of the oil cup body (10) in the oil cup body (10). The isolation liquid has a density lower than that of the oil and is located in the lower layer of the oil.

3. The oil cup device according to claim 2, characterized in that: The distance between the location of the first port (21) and the bottom wall of the oil cup body (10) is denoted as h, and the overall height of the oil cup body is denoted as H, wherein 1 / 5≤h / H≤1 / 2.

4. The oil cup device according to claim 1, characterized in that: The inner wall of the oil cup body (10) is coated with an oleophobic coating.

5. The oil cup device according to claim 1, characterized in that: The openings of the first port (21) and the second port (22) are both facing downward.

6. The oil cup device according to claim 1, characterized in that: An opening (102) for the drain pipe (20) to pass through is provided on the side wall of the oil cup body (10), and a fixing clamp (13) for fixing the drain pipe (20) is also provided on the inner wall of the oil cup body (10).

7. The oil cup device according to any one of claims 1 to 6, characterized in that: At least a section of the oil pipe of the liquid discharge pipe (20) located inside the oil cup body (10) is a telescopic pipe (23) whose length can be adjusted telescopically.

8. The oil cup device according to claim 7, characterized in that: It also includes a driving mechanism disposed on the oil cup body (10), wherein a power output end of the driving mechanism is connected to the lower end of the telescopic tube (23) and can drive the telescopic tube (23) to move telescopically in the up and down directions.

9. The oil cup device according to claim 8, characterized in that: The driving mechanism comprises an electric push rod (30), the telescopic rod of the electric push rod (30) extends up and down, and the end of the telescopic rod is connected to the lower end of the telescopic tube (23) through a connecting rod (31).

10. The oil cup device according to claim 8, characterized in that: It also includes a controller and a liquid level recognition device for detecting changes in the liquid level in the oil cup body (10), the liquid level recognition device and the driving mechanism are both electrically connected to the controller, the controller obtains a liquid level change signal transmitted by the liquid level recognition device, and controls the driving mechanism to move the lower end of the telescopic tube (23) downward to a position adjacent to the bottom wall of the oil cup body (10) according to the liquid level change signal; The above-mentioned liquid level change signal is the number of times the liquid level in the oil cup body (10) is lower than the set liquid level within a set time.

11. A range hood, comprising a range hood body and an oil cup arranged on the range hood body, wherein the oil cup is the oil cup device according to any one of claims 1 to 10.

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