Range hood

Abstract

The utility model discloses a range hood which comprises an exhaust fume collecting hood and an oil cup assembly arranged below the exhaust fume collecting hood, and is characterized in that the oil cup assembly comprises a first oil cup and a second oil cup which are arranged left and right along the bottom of the exhaust fume collecting hood; the first oil cup comprises a first oil cup first end close to the second oil cup and a first oil cup second end far away from the second oil cup, and the second oil cup comprises a second oil cup first end close to the first oil cup and a second oil cup second end far away from the first oil cup. The second end of the first oil cup and the second end of the second oil cup are both in direct or indirect rotating connection with the exhaust fume collecting hood, and the first oil cup can be in a horizontal state that the first oil cup is horizontally arranged below the exhaust fume collecting hood and can be in an inclined state that the first end of the first oil cup is lower than the second end of the first oil cup. The second oil cup can be in a horizontal state that the second oil cup is horizontally arranged below the exhaust fume collecting hood and can be in an inclined state that the first end of the second oil cup is lower than the second end of the second oil cup.

Description

Technical Field

[0001] This utility model relates to an oil fume purification device, and more particularly to an oil fume extractor. Background Technology

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It quickly removes cooking fumes and waste from the stove and exhausts them outdoors, reducing pollution and purifying the air. The grease cup is an accessory of the range hood, serving as a key component for collecting and storing grease.

[0003] For example, Chinese utility model patent application number 202323086844.6 discloses an oil cup assembly, which includes an oil cup and an oil cup hanger. The oil cup hanger is inclined, and an installation plate is provided protruding from the inner wall of the oil cup. The installation plate is inclined, and the inclination angle is the same as the inclination angle of the oil cup hanger. The oil cup is installed by inserting the installation plate into the oil cup hanger.

[0004] Most range hoods on the market currently have their oil cups located at the bottom of the smoke collection hood and secured by oil cup hooks on both sides of the machine. Users need to push and pull the oil cup horizontally to disassemble it before emptying it.

[0005] In order to maintain the aesthetics of the entire machine, the oil cup of range hoods is gradually developing towards a flatter and hidden design. The short and long oil cup has reduced its ability to store oil, which means that users need to disassemble and empty it frequently. On the other hand, users need to keep the oil cup level when emptying the oil, and there is a risk of oil spillage if they are not careful. This is very unfriendly and inconvenient for users. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a range hood that eliminates the need to push or pull the oil cup off the smoke collection hood for emptying, thereby reducing the risk of oil spillage.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a range hood, including a smoke collection hood and an oil cup assembly disposed under the smoke collection hood, characterized in that: the oil cup assembly includes a first oil cup and a second oil cup arranged left and right along the bottom of the smoke collection hood, the first oil cup includes a first end of the first oil cup close to the second oil cup and a second end of the first oil cup away from the second oil cup, the second oil cup includes a first end of the second oil cup close to the first oil cup and a second end of the second oil cup away from the first oil cup, the second end of the first oil cup and the second end of the second oil cup are both directly or indirectly rotatably connected to the smoke collection hood, the first oil cup can be in a horizontal state placed horizontally under the smoke collection hood, and can be in an inclined state where the first end of the first oil cup is lower than the second end of the first oil cup, the second oil cup can be in a horizontal state placed horizontally under the smoke collection hood, and can be in an inclined state where the first end of the second oil cup is lower than the second end of the second oil cup.

[0008] By dividing the oil cup assembly into a first oil cup and a second oil cup, the length of the oil cup is reduced, and the first and second oil cups are set to tilt downwards to pour out oil. This eliminates the need to push or pull the oil cups off the fume hood to pour out the oil, reducing the risk of oil spillage. Furthermore, the reduced length ensures stable movement.

[0009] In order to realize the movement of the first oil cup and the second oil cup, the range hood also includes a motion mechanism that can drive the first oil cup and the second oil cup to move.

[0010] To achieve the movement of the first and second oil cups, the motion mechanism includes a linear drive module, a first connecting rod, and a second connecting rod. The linear drive module is located inside the smoke hood and includes an output end capable of longitudinal extension and retraction. One end of the first connecting rod is rotatably connected to the output end, and the other end of the first connecting rod is rotatably connected to the first oil cup. One end of the second connecting rod is rotatably connected to the output end, and the other end of the second connecting rod is rotatably connected to the second oil cup.

[0011] In order to connect the oil cup to the corresponding connecting rod, a first bracket is provided on the inner bottom of the first oil cup, and the end of the first connecting rod away from the output shaft is rotatably connected to the first bracket. A second bracket is provided on the inner bottom of the second oil cup, and the end of the second connecting rod away from the output shaft is rotatably connected to the second bracket.

[0012] To enable the two oil cups to be rotatably connected to the smoke hood, the motion mechanism further includes a first base, a first crank, a second base, and a second crank. The first base is located inside the smoke hood on the left side. One end of the first crank is rotatably connected to the first base, and the other end of the first crank is fixedly connected to the first oil cup. The second base is located inside the smoke hood on the right side. One end of the second crank is rotatably connected to the second base, and the other end of the second crank is fixedly connected to the second oil cup.

[0013] In order to connect the oil cup to the corresponding crank, a third bracket is provided on the inner bottom of the first oil cup, and the end of the first crank away from the first base is fixedly connected to the third bracket. A fourth bracket is provided on the inner bottom of the second oil cup, and the end of the second crank away from the second base is fixedly connected to the fourth bracket.

[0014] To facilitate oil drainage, a first oil drain hole is provided on the side of the first oil cup near the second oil cup, and a second oil drain hole is provided on the side of the second oil cup near the first oil cup.

[0015] In order to detect the oil level in the oil cup, a first sensor capable of detecting the oil level is provided on the inner side of the first oil cup corresponding to the first oil drain hole, and a second sensor capable of detecting the oil level is provided on the inner side of the second oil cup corresponding to the second oil drain hole.

[0016] Compared with the prior art, the advantages of this utility model are: by dividing the oil cup assembly into a first oil cup and a second oil cup, the length of the oil cup is reduced, and the first oil cup and the second oil cup are set to tilt downwards to pour out the oil, so that it is not necessary to push or pull the oil cup off the fume hood to pour out the oil, reducing the risk of oil spillage, and the movement process is stable after the length is reduced. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first and second oil cups of the range hood in a horizontal state according to an embodiment of the present utility model.

[0018] Figure 2 This is a schematic diagram of the motion mechanism of the range hood in an embodiment of the present invention when the first and second oil cups are in a horizontal state;

[0019] Figure 3 This is a schematic diagram of the first and second oil cups of the range hood in an inclined state according to an embodiment of the present utility model.

[0020] Figure 4 This is a schematic diagram of the motion mechanism of the first and second oil cups of the range hood in an inclined state according to an embodiment of the present utility model;

[0021] Figure 5 This is a front sectional view of the range hood according to an embodiment of the present utility model;

[0022] Figure 6 for Figure 5 A magnified view of section I. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] 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.

[0025] See Figures 1-5 A range hood includes a smoke collection hood 1 and an oil cup assembly disposed below the smoke collection hood 1.

[0026] The oil cup assembly includes a first oil cup 21 and a second oil cup 22 arranged laterally along the bottom of the smoke collection hood 1. The first oil cup 21 includes a first end 211 near the second oil cup 22 and a second end 212 away from the second oil cup 22. The second oil cup 22 includes a first end 221 near the first oil cup 21 and a second end 222 away from the first oil cup 21. Both the second ends 212 and 222 of the first and second oil cups are directly or indirectly rotatably connected to the smoke collection hood 1.

[0027] The first oil cup 21 can be in a horizontal position below the smoke hood 1, and can be in an inclined position where the first end 211 of the first oil cup is lower than the second end 212 of the first oil cup. The second oil cup 22 can be in a horizontal position below the smoke hood 1, and can be in an inclined position where the first end 221 of the second oil cup is lower than the second end 222 of the second oil cup.

[0028] See Figure 2 and Figures 4-5The range hood also includes a motion mechanism capable of driving the first oil cup 21 and the second oil cup 22. The motion mechanism includes a linear drive module 31, a first connecting rod 32, and a second connecting rod 33. The linear drive module 31 is disposed inside the smoke collection hood 1 and includes an output end 311 capable of longitudinal extension and retraction. One end of the first connecting rod 32 is rotatably connected to the output end 311, and the other end of the first connecting rod 32 is rotatably connected to the first oil cup 21. One end of the second connecting rod 33 is rotatably connected to the output end 311, and the other end of the second connecting rod 33 is rotatably connected to the second oil cup 22. In this embodiment, the linear drive module 31 is an electric push rod. Alternatively, the linear drive module 31 can also be other solutions in the prior art, such as a motor and rack and pinion mechanism, a cylinder, a hydraulic cylinder, etc.

[0029] See Figure 2 and Figures 4-5 The first oil cup 21 has a first support 38 at its inner bottom, and the end of the first connecting rod 32 away from the output end 311 is rotatably connected to the first support 38. The second oil cup 22 has a second support 39 at its inner bottom, and the end of the second connecting rod 33 away from the output end 311 is rotatably connected to the second support 39.

[0030] The motion mechanism also includes a first base 34, a first crank 35, a second base 36, and a second crank 37. The first base 34 is located inside the smoke hood 1 on the left side. One end of the first crank 35 is rotatably connected to the first base 34, and the other end is fixedly connected to the first oil cup 21. The second base 36 is located inside the smoke hood 1 on the right side. One end of the second crank 37 is rotatably connected to the second base 36, and the other end is fixedly connected to the second oil cup 22. By setting a hinge mechanism (base and crank), the two oil cups are connected to the left and right sides of the smoke hood 1, ensuring that the corresponding oil cups can rotate around a fixed axis without interfering with the smoke hood. Simultaneously, by retracting the output end 311 of the linear drive module 31, the tops of the first oil cup 21 and the second oil cup 22 are clamped to the bottom of the smoke hood 1, reducing the gap between them and, to some extent, solving the problem of odor dispersion caused by long-term accumulation of oil in the oil cups.

[0031] A third bracket 40 is provided on the inner bottom of the first oil cup 21, and the end of the first crank 35 away from the first base 34 is fixedly connected to the third bracket 40. A fourth bracket 41 is provided on the inner bottom of the second oil cup 22, and the end of the second crank 37 away from the second base 36 is fixedly connected to the fourth bracket 41.

[0032] See Figures 3-4 and Figure 6A first oil drain hole 213 is provided on the side of the first oil cup 21 near the second oil cup 22. A second oil drain hole 223 is provided on the side of the second oil cup 22 near the first oil cup 21. The first oil drain hole 213 and the second oil drain hole 223 are located above the middle of their respective sides. Preferably, the first oil drain hole 213 and the second oil drain hole 223 are pointed.

[0033] The placement of the oil drain hole ensures that the oil cup has a certain amount of oil stored during normal operation of the range hood. Furthermore, the pointed design of the drain hole facilitates the smooth discharge of oil during the oil emptying mode. The automatic oil emptying solution in this embodiment frees the user's hands. Simply operate the control panel of the range hood, and the first oil cup 21 and second oil cup 22, located on the left and right respectively, will automatically activate the oil emptying mode. The user can then place a bowl or cup on the surface directly below the drain holes of the two oil cups to collect and clean the oil, thus avoiding the inconvenience of oil spillage during manual disassembly.

[0034] See Figures 5-6 A first sensor 51 capable of detecting oil level is provided on the inner side of the first oil cup 21, corresponding to the first oil drain hole 213. A second sensor 52 capable of detecting oil level is provided on the inner side of the second oil cup 22, corresponding to the second oil drain hole 223. The first sensor 51 and the second sensor 52 can be pressure sensors.

[0035] Two sensors are installed near the drain holes of the corresponding oil cups. This position facilitates real-time detection of the remaining oil level in the cups during the oil spill process. The first sensor 51 and the second sensor 52 detect the liquid pressure inside the corresponding oil cups, thus detecting the oil level and feeding the signal back to the control program. Based on the received oil level feedback signal, the linear drive module is started and stopped to control the rotation angle of the first oil cup 21 and the second oil cup 22, ensuring that the oil flows out slowly, evenly, and stably from the corresponding drain holes.

[0036] See Figure 6 Let the oil level in the oil cup be h, the sensor's first preset height be h0, the second preset height be h1, and the third preset height be h2. h0 is set to the position closest to the lowest point of the drain hole, h1 is set to the lowest point of the drain hole, and h2 is set to the position between the drain hole and the top of the oil cup. The sensor's operation is as follows:

[0037] 1) When the oil level in the oil cup is h≥h0, the range hood will remind the user to clean the oil in the oil cup via the control panel.

[0038] 2) The user activates the automatic oil spill emptying function and places an oil spill receiving device directly below the oil outlet. The output end 311 of the linear drive module 31 begins to move downward. Under the action of the first link 32 and the second link 33, the first oil cup 21 and the second oil cup 22 rotate downward and tilt. The oil in the oil cups flows towards the drain hole under the action of gravity. When the sensor detects that the oil height h = h2, the output end 311 stops moving to prevent the oil cups from continuing to tilt and causing the oil to overflow from the upper edge of the oil cups.

[0039] 3) Oil flows continuously from the drain hole. When the oil height h ≤ h1, the oil flow slows down or even stops, and the output end 311 starts to move.

[0040] 4) Repeat steps 2) and 3) until the output end 311 reaches its end and stops rotating, and the oil cup reverses to its limit angle and stops moving. When the oil height h ≤ h1, the oil flow stops. After a certain period of time, such as 120s, the output end 311 retracts, causing the two oil cups to flip inward and retract until they are clamped. The oil dumping is then complete. The user only needs to pour out the oil collected in the receiving device to complete the cleaning of the oil cups.

[0041] This automatic oil cup emptying control scheme ensures that the oil in the oil cup is emptied cleanly, while also avoiding the risk of oil spilling from the edge of the oil cup during emptying due to its short height.

Claims

1. A range hood comprising a hood (1) and an oil cup assembly disposed below the hood (1), characterized in that: The oil cup assembly comprises a first oil cup (21) and a second oil cup (22) arranged along the bottom of the smoke hood (1), the first oil cup (21) comprises a first end (211) close to the second oil cup (22) and a second end (212) away from the second oil cup (22), the second oil cup (22) comprises a first end (221) close to the first oil cup (21) and a second end (222) away from the first oil cup (21), the first end (212) and the second end (222) are directly or indirectly connected with the smoke hood (1), the first oil cup (21) can be in a horizontal state horizontally placed under the smoke hood (1), and can be in an inclined state with the first end (211) lower than the second end (212), the second oil cup (22) can be in a horizontal state horizontally placed under the smoke hood (1), and can be in an inclined state with the first end (221) lower than the second end (222).

2. The hood according to claim 1, characterized in that: The range hood further comprises a movement mechanism capable of driving the first oil cup (21) and the second oil cup (22) to move.

3. The hood according to claim 2, characterized in that: The movement mechanism comprises a linear drive module (31), a first connecting rod (32) and a second connecting rod (33), the linear drive module (31) is arranged on the inner side of the smoke hood (1), the linear drive module (31) comprises an output end (311) capable of longitudinal extension and contraction, one end of the first connecting rod (32) is rotatably connected with the output end (311), the other end of the first connecting rod (32) is rotatably connected with the first oil cup (21), one end of the second connecting rod (33) is rotatably connected with the output end (311), the other end of the second connecting rod (33) is rotatably connected with the second oil cup (22).

4. The hood according to claim 3, characterized in that: The inner side of the first oil cup (21) is provided with a first support (38), one end of the first connecting rod (32) away from the output end (311) is rotatably connected with the first support (38), the inner side of the second oil cup (22) is provided with a second support (39), one end of the second connecting rod (33) away from the output end (311) is rotatably connected with the second support (39).

5. The hood according to claim 3, characterized in that: The movement mechanism further comprises a first base (34), a first crank (35), a second base (36) and a second crank (37), the first base (34) is arranged on the inner left side of the smoke hood (1), one end of the first crank (35) is rotatably connected with the first base (34), the other end of the first crank (35) is fixedly connected with the first oil cup (21), the second base (36) is arranged on the inner right side of the smoke hood (1), one end of the second crank (37) is rotatably connected with the second base (36), the other end of the second crank (37) is fixedly connected with the second oil cup (22).

6. The hood according to claim 5, characterized in that: The inner side bottom of the first oil cup (21) is provided with a third support (40), one end of the first crank (35) away from the first base (34) is fixedly connected with the third support (40), the inner side bottom of the second oil cup (22) is provided with a fourth support (41), one end of the second crank (37) away from the second base (36) is fixedly connected with the fourth support (41).

7. The hood according to any one of claims 1-6, characterized in that: A first oil discharge hole (213) is formed on one side of the first oil cup (21) close to the second oil cup (22), and a second oil discharge hole (223) is formed on one side of the second oil cup (22) close to the first oil cup (21).

8. The hood according to claim 7, characterized in that: A first sensor (51) capable of detecting the oil level is arranged on the inner side of the first oil cup (21) corresponding to the first oil discharge hole (213), and a second sensor (52) capable of detecting the oil level is arranged on the inner side of the second oil cup (22) corresponding to the second oil discharge hole (223).

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