Range hood

Abstract

The utility model discloses a range hood which comprises a smoke inlet assembly, a filtering assembly used for filtering oil smoke is arranged on the inner side of the smoke inlet assembly, and a smoke suction opening is formed in the bottom of the smoke inlet assembly. The air purifier is characterized in that the filtering assembly comprises two first filtering pieces used for filtering particulate matter, grease and water vapor and a second filtering piece used for removing peculiar smells, and the second filtering piece is arranged between the two first filtering pieces. Compared with the prior art, the oil fume purifier has the advantages that the oil fume smell can be purified, and the service life of the second filter part can be prolonged.

Description

Technical Field

[0001] The utility model relates to an oil fume purification device, in particular to an oil fume extractor. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It can quickly extract stove burnt waste and fumes generated during cooking and discharge them outdoors, reducing pollution and purifying the air.

[0003] For example, a new type of ceiling range hood disclosed in the Chinese utility model patent with application number 202221608142.2 includes a range hood body, a smoke collecting hood with a lower opening is arranged at the bottom of the range hood body, a smoke collecting chamber is arranged in the smoke collecting hood, an air inlet structure is arranged around the smoke collecting chamber, an exhaust device connected to the smoke collecting chamber is arranged in the range hood body, and a fume filter is detachably installed in the smoke collecting chamber. The fume filter can filter the passing fume and intercept most of the grease to prevent the grease from entering the interior of the range hood body and adhering to the exhaust device.

[0004] When the above-mentioned ceiling range hood absorbs oil smoke, the oil smoke filter only filters the grease in the oil smoke and cannot purify the oil smoke odor generated when cooking food. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a range hood capable of purifying the smell of oil smoke in view of the deficiencies in the above-mentioned prior art.

[0006] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a range hood, including a smoke inlet component, a filter component for filtering oil smoke is arranged on the inner side of the smoke inlet component, and a smoking port is arranged at the bottom of the smoke inlet component, characterized in that: the filter component includes a first filter element for filtering particulate matter, grease and water vapor and a second filter element for removing odors, the first filter element has two, and the second filter element is arranged between the two first filter elements.

[0007] By arranging the first filter element and the second filter element, the filter assembly can not only filter particulate matter, grease and water vapor, but also purify the smell of oil smoke. By arranging the second filter element between the two first filter elements, the service life of the second filter element is extended.

[0008] In order to be able to maintain the filter element in time, the range hood further comprises a first weight sensor capable of monitoring the weight of the first filter element and a second weight sensor capable of monitoring the weight of the second filter element.

[0009] In order to set the sensor, the first weight sensor and the second filter element are both set at the bottom of the corresponding filter element.

[0010] In order to extend the service life of the second filter element, preferably, the first filter element is a glass fiber filter mesh with waterproof and oil-proof functions, and the second filter element is an activated carbon filter mesh.

[0011] Furthermore, in order to form a negative pressure to inhale the oil smoke, the range hood further includes a fan system located on the top of the smoke inlet assembly. In the gas flow path, the fan system is located downstream of the filter assembly. The smoke inlet assembly and the fan system are hoisted below the external mounting base. The installation by hoisting can solve the problem of space occupation of conventional electrical appliances.

[0012] Furthermore, in order to reduce the space occupied when not in operation and the decrease of the negative pressure zone when in operation, the range hood also includes a lifting component capable of driving the smoke inlet component and the fan system to rise and fall relative to the external mounting base.

[0013] In order to realize the lifting function of the lifting assembly, the lifting assembly includes a lifting assembly shell, a motor, a shaft body and a rope. The lifting assembly shell is fixed to the external mounting base, the motor is arranged in the lifting assembly shell, the shaft body is driven by the motor and can rotate around its own axis, one end of the rope is connected to the shaft body and wound around the shaft body, and the other end of the rope is connected to the fan system. Therefore, through the rotation of the shaft body, the rope can change the height of the smoke inlet assembly by changing the number of turns wound around the shaft body.

[0014] In order to achieve better connection stability, the motor, the shaft and the rope constitute a lifting mechanism. There are four lifting mechanisms in the lifting component housing, and the ropes of the four lifting mechanisms are evenly distributed on the top of the fan system.

[0015] In order to realize the installation of the lifting assembly, the lifting assembly further comprises a mounting member connected to an external mounting base.

[0016] Furthermore, the smoke inlet assembly is hoisted below the external mounting base, and the range hood further comprises a lifting assembly capable of driving the smoke inlet assembly to rise and fall relative to the external mounting base. The installation by hoisting can solve the problem of space occupation of conventional electrical appliances.

[0017] Compared with the prior art, the advantage of the utility model is that by setting the first filter element and the second filter element, it can not only filter particulate matter, grease and water vapor, but also filter and purify the smell of oil smoke. The first filter element is a glass fiber filter with waterproof and oil-proof functions, and the second filter element is an activated carbon filter. The second filter element is arranged between the two first filter elements, which can solve the problem that water vapor in the air affects the life of the activated carbon filter. By setting a first weight sensor for monitoring the weight of the first filter element and a second weight sensor for monitoring the weight of the second filter element, the use of the first filter element and the second filter element can be monitored, which is convenient for later maintenance. By setting a lifting component, the smoke inlet component can be lifted and lowered, and the smoke inlet component can be raised after use without blocking the line of sight, solving the problem of conventional electrical appliances taking up space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the installation of a range hood according to an embodiment of the utility model;

[0019] Figure 2 A cross-sectional view of a range hood according to an embodiment of the utility model;

[0020] Figure 3 for Figure 2 An enlarged view of a local part I;

[0021] Figure 4 It is a top schematic diagram of a range hood according to an embodiment of the utility model. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present utility model can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0024] See also Figure 1-2A range hood comprises a smoke inlet assembly 1, and a smoke inlet port 11 is arranged at the bottom of the smoke inlet assembly 1.

[0025] See also Figure 2 A filter assembly 2 for filtering oil smoke is arranged on the inner side of the smoke inlet assembly 1. The filter assembly 2 includes two first filter elements 21 and a second filter element 22. The first filter element 21 is a glass fiber filter with waterproof and oil-proof functions, and the second filter element 22 is an activated carbon filter. Glass fiber is an inorganic non-metallic material with excellent performance. While removing particulate matter, it has the advantages of high temperature resistance, acid resistance, corrosion resistance, good toughness, and mildew resistance. It is made into a fiber cotton-like form, the structure itself is more fluffy, the wind resistance is smaller, and it is easy for the waterproof and oil-proof agent to penetrate into the interior, so that the overall waterproof and oil-proof effect from the inside to the outside is achieved, and it can be washed with water after a period of use, and does not need to be replaced frequently, and has a certain stability.

[0026] There are two first filter elements 21, and the second filter element 22 is arranged between the two first filter elements 21. The two glass fiber filter nets wrap the activated carbon filter net, which can solve the problem that the water vapor in the air affects the life of the activated carbon filter net.

[0027] The range hood further comprises a first weight sensor 31 capable of monitoring the weight of the first filter element 21 and a second weight sensor 32 capable of monitoring the weight of the second filter element 22. The first weight sensor 31 and the second weight sensor 32 are both arranged at the bottom of the corresponding filter element.

[0028] The activated carbon filter is used to adsorb odors produced when cooking food, so the weight will increase after adsorption. There is a maximum adsorption limit for activated carbon when treating odors, so the weight will also have a corresponding value. The weight sensor will monitor the weight of the activated carbon. When the weight reaches the above value, the control system controls the display light to turn on, and the user needs to replace the activated carbon.

[0029] Similarly, repeat the above steps for the fiber filter. The difference is that the fiber filter does not need to be replaced. It can be used again after just washing and drying.

[0030] See also Figure 1 to Figure 4 The range hood further comprises a lifting assembly 4 capable of controlling the lifting and lowering of the smoke inlet assembly 1. The lifting assembly 4 comprises a lifting assembly housing 41, a bracket 42, a motor 43, a shaft 44 and a rope 45. The bracket 42 is arranged on the inner side of the lifting assembly housing 41, the motor 43 is arranged on the bracket 42, the shaft 44 is driven by the motor 43 and can rotate around its own axis, one end of the rope 45 is connected to the shaft 44, and the other end of the rope 45 is directly or indirectly connected to the smoke inlet assembly 1, and the rope 45 can change the number of turns around the shaft 44 and change the height of the smoke inlet assembly 1 through the rotation of the shaft 44.

[0031] The range hood also includes a fan system 5 located at the top of the smoke inlet assembly 1. The top of the fan system 5 is square. On the flow path of the gas, the fan system 5 is located downstream of the filter assembly 2, and the end of the rope 45 away from the shaft 44 is connected to the fan system 5. The bracket 42, the motor 43, the shaft 44 and the rope 45 constitute a lifting mechanism. There are four lifting mechanisms in the lifting assembly housing 41, and the ropes 45 of the four lifting mechanisms are respectively connected to the four corners of the top of the fan system 5, so as to ensure the stability of the lifting mechanism and prevent the smoke inlet assembly 1 from shaking during hoisting. Preferably, the rope 45 is a steel wire rope.

[0032] See also Figure 3-4 The lifting assembly 4 further includes a mounting member 6 connected to an external mounting base 100. In this embodiment, the external mounting base 100 is a suspended ceiling. The mounting member 6 is disposed on the inner side of the lifting assembly housing 41, and the top of the mounting member 6 is connected to the external mounting base 100.

[0033] See also Figure 1-2 , the range hood of the utility model can be well applied to the scene of eating hot pot, so that the restaurant or living room commonly used for eating hot pot can become the second kitchen. When working, you can press the down button of the remote control, and the smoke inlet component 1 and the fan system 5 will descend from the ceiling to 50 cm away from the pot mouth of the pot 200 on the dining table 300. The fan system 5 on the smoke inlet component 1 rotates to generate negative pressure, and the hot pot smell is sucked into the filter component 2. First, under the action of the first filter element 21 with waterproof, oil-proof and catalytic odor, particulate matter, oil and a large amount of water vapor are isolated and removed, and the odor is removed after entering the second filter element 22 with activated carbon components, and the purified gas is discharged into the room, so that the hot pot smell in the room and clothes is greatly reduced when the user eats hot pot. After use, press the up button of the remote control to raise the smoke inlet component 1 to the ceiling, which will not block the line of sight and solve the problem of conventional electrical appliances taking up space.

Claims

1. A range hood, comprising a smoke inlet assembly (1) and a filter assembly (2) arranged inside the smoke inlet assembly (1) for filtering smoke, wherein a smoke inlet opening (11) is arranged at the bottom of the smoke inlet assembly (1), and characterized in that: The filter assembly (2) comprises a first filter element (21) for filtering particulate matter, grease and water vapor and a second filter element (22) for removing odors, the first filter element (21) having two parts, the second filter element (22) being arranged between the two first filter elements (21), the first filter element (21) being a glass fiber filter mesh having waterproof and oil-proof properties, and the second filter element (22) being an activated carbon filter mesh.

2. The range hood according to claim 1, characterized in that: The range hood further comprises a first weight sensor (31) capable of monitoring the weight of the first filter element (21) and a second weight sensor (32) capable of monitoring the weight of the second filter element (22).

3. The range hood according to claim 2, characterized in that: The first weight sensor (31) and the second filter element (22) are both arranged at the bottom of the corresponding filter element.

4. The range hood according to any one of claims 1 to 3, characterized in that: The range hood further comprises a fan system (5) located at the top of the smoke inlet assembly (1); in the gas flow path, the fan system (5) is located downstream of the filter assembly (2); the smoke inlet assembly (1) and the fan system (5) are hoisted below an external mounting base (100).

5. The range hood according to claim 4, characterized in that: The range hood further comprises a lifting assembly (4) capable of driving the smoke inlet assembly (1) and the fan system (5) to rise and fall relative to the external mounting base (100).

6. The range hood according to claim 5, characterized in that: The lifting component (4) comprises a lifting component housing (41), a motor (43), a shaft (44) and a rope (45); the lifting component housing (41) is fixed to an external mounting base (100); the motor (43) is arranged in the lifting component housing (41); the shaft (44) is driven by the motor (43) and can rotate around its own axis; one end of the rope (45) is connected to the shaft (44) and is wound around the shaft (44); the other end of the rope (45) is connected to the fan system (5).

7. The range hood according to claim 6, characterized in that: The motor (43), the shaft (44) and the rope (45) constitute a lifting mechanism. There are four lifting mechanisms in the lifting component housing (41), and the ropes (45) of the four lifting mechanisms are evenly distributed on the top of the fan system (5).

8. The range hood according to claim 5, characterized in that: The lifting assembly (4) also includes a mounting member (6) connected to the external mounting base (100).

9. The range hood according to any one of claims 1 to 3, characterized in that: The smoke inlet assembly (1) is hoisted below the external mounting base (100), and the range hood further comprises a lifting assembly (4) capable of driving the smoke inlet assembly (1) to rise and fall relative to the external mounting base (100).

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