Kitchen fume filter

The kitchen fume filter designed with a multi-layer nickel foam structure and a detachable mounting frame solves the problems of oil droplet pollution and reduced filtration performance, achieves efficient filtration and convenient cleaning, has fire resistance, and reduces environmental pollution.

CN112283780BActive Publication Date: 2025-09-12XIAMEN MIAOXUAN TECH CO LTD
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Patent Information

Application Number
CN202011282474.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-11-17
Publication Date
2025-09-12
Estimated Expiration
2040-11-17

AI Technical Summary

Technical Problem

The filtering performance of existing kitchen fume filters decreases after long-term use, and there is a problem of oil droplets contaminating the stove and air pollution. In addition, the existing technology fails to effectively solve the pollution of fume emissions to the environment.

Method used

The filter plate with multi-layer nickel foam structure and detachable mounting frame design is combined with fiber cotton layer and fixed net. Grease particles are separated through continuous collision in the filter and processed through diversion holes and oil collection device to avoid secondary pollution.

Benefits of technology

It can maintain excellent filtering performance for a long time, avoid oil droplet pollution, reduce environmental pollution, and has fire resistance and convenient cleaning functions.

✦ Generated by Eureka AI based on patent content.

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    Figure CN112283780B_ABST
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Abstract

The present invention discloses a kitchen fume filter, which is provided with an installation frame, a first fixed net is provided at the bottom of the installation frame, a fiber cotton layer is provided on the first fixed net, a second fixed net is provided on the fiber cotton layer, and a filter plate is provided on the second fixed net. The present invention has a simple structure and is easy to install. It adopts a multi-layer nickel foaming structure. Grease particles are continuously collided in the filter, and the nickel filter separates them and discharges them directly from the bottom. In this way, excellent filtering performance can be continuously maintained, the decline in filtering performance can be reduced, and it can be used for a long time. In addition, the filter material constructed of pure nickel has fast surface heat dissipation and controlled temperature, which can effectively prevent flames from entering the ventilation duct, achieve excellent fire prevention performance, eliminate safety hazards, and is provided with an oil pollution collection device to collect oil pollution and avoid secondary environmental pollution.
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Description

Technical Field

[0001] The invention relates to the technical field of kitchen fume filtration, in particular to a kitchen fume filter. Background Art

[0002] When the oil is heated above 200℃, acrolein, the main component of oil smoke, is generated. It has a strong pungent taste and is a strong irritant to the nose, eyes, and throat mucosa, which can cause respiratory diseases such as rhinitis, pharyngitis, and tracheitis. When the oil temperature exceeds 300℃, in addition to producing acrolein, it also produces coagulation, leading to chronic poisoning and easily inducing respiratory and digestive system cancers. Therefore, oil fume purification becomes very important. There are many principles and methods for oil fume filters to filter oil fume.

[0003] For restaurants, canteens and other places that produce oil smoke due to the need to continuously cook for a long time, the metal filter of the oil smoke filter often hangs on the oil droplets and drips on the stove, affecting the hygiene of the stove, and may even drip into the wok and contaminate the dishes. At present, most range hoods on the market use the method of directly discharging the oil smoke exhaust gas into the atmosphere through the exhaust pipe, or discharging the oil smoke exhaust gas into a common exhaust duct, and then discharging the oil smoke exhaust gas into the atmosphere through the common exhaust duct. However, this method of exhausting oil smoke not only pollutes the air, but also causes environmental pollution, polluting indoor and outdoor air, and damaging the health of others. Summary of the Invention

[0004] The object of the present invention is to provide a kitchen fume filter with a simple structure, easy installation and good filtering effect, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a kitchen fume filter is provided with an installation frame, a first fixed net is provided at the bottom of the installation frame, a fiber cotton layer is provided on the first fixed net, a second fixed net is provided on the fiber cotton layer, and a filter plate is provided on the second fixed net.

[0006] Preferably, the filter plate adopts a nickel foam structure, and the nickel foam structure is provided with at least one layer. A multi-layer nickel foam structure is adopted. The grease particles undergo continuous collisions in the filter, and the nickel filter separates them and discharges them directly from the bottom. In this way, the excellent filtering performance can be continuously maintained, the decline in filtering performance can be reduced, and it can be used for a long time.

[0007] Preferably, the mounting frame includes a first mounting bar, a second mounting bar, a third mounting bar and a fourth mounting bar, and the first mounting bar, the second mounting bar, the third mounting bar and the fourth mounting bar are all U-shaped bars, one end of the first mounting bar is hinged to one end of the second mounting bar, and the other end is hinged to one end of the third mounting bar, the other ends of the second mounting bar and the third mounting bar are both provided with a rotatable limit block, both ends of the fourth mounting bar are respectively connected to the second mounting bar and the third mounting bar, and both ends of the fourth mounting bar are provided with fixing holes, which cooperate with the limit blocks to achieve positioning, and the mounting frame adopts a detachable structure, which is convenient for installation and disassembly and cleaning of the overall device, ensuring a clean and tidy kitchen.

[0008] Preferably, a guide hole is provided on the fourth mounting bar.

[0009] Preferably, the bottom of the installation frame is connected to the oil collection device through a guide plate, which is convenient for collecting and processing the oil and avoids secondary pollution.

[0010] Preferably, the first mounting bar, the second mounting bar, the third mounting bar and the fourth mounting bar can all be adjusted in length to facilitate the installation of filter plates of different sizes.

[0011] Preferably, the side of the second mounting bar is hinged with a fixing device, and the fixing device includes a connecting rod, one end of the connecting rod is hinged to the side of the second mounting bar, and the other end is sleeved with a support rod, the support rod is a hollow device, and the other end of the support rod is provided with an adsorption plug, and the side of the second mounting bar is also hinged with the fixing device.

[0012] Preferably, the filter plate is made of pure nickel, the surface heat dissipation is fast, the temperature is controlled, and the flame can be effectively prevented from entering the ventilation duct.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a simple structure and is easy to install. It adopts a multi-layer nickel foaming structure. The grease particles in the filter undergo continuous collisions, and the nickel filter separates them and discharges them directly from the bottom. In this way, the excellent filtering performance can be continuously maintained, the decline in filtering performance can be reduced, and it can be used for a long time. In addition, the filter material constructed of pure nickel has fast surface heat dissipation and temperature control, which can effectively prevent flames from entering the ventilation duct, achieving excellent fire prevention performance and eliminating safety hazards. In addition, it is provided with an oil pollution collection device, which can collect oil pollution and avoid secondary environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front cross-sectional view of the present invention;

[0015] Figure 2 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for the purpose of facilitating the description of the present invention and simplifying the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0019] like Figure 1As shown: the kitchen fume filter is provided with a mounting frame 1, a first fixed net 2 is provided at the bottom of the mounting frame 1, a fiber cotton layer 3 is provided on the first fixed net 2, a second fixed net 4 is provided on the fiber cotton layer 3, a filter plate 5 is provided on the second fixed net 4, and the filter plate 5 adopts a multi-layer nickel foam structure. With the multi-layer nickel foam structure, the grease particles are continuously collided in the filter, and the nickel filter separates them and discharges them directly from the bottom, so that the excellent filtering performance can be maintained continuously, the decline of the filtering performance can be reduced, and it can be used for a long time. In addition, the filter material with pure nickel structure has fast surface heat dissipation and temperature control, which can effectively prevent flames from entering the ventilation duct and achieve Excellent fireproof performance, eliminating safety hazards, the installation frame 1 includes a first installation bar 101, a second installation bar 102, a third installation bar 103 and a fourth installation bar 104, the first installation bar 101, the second installation bar 102, the third installation bar 103 and the fourth installation bar 104 can all be adjusted in length to facilitate the installation of filter plates of different sizes, and the first installation bar 101, the second installation bar 102, the third installation bar 103 and the fourth installation bar 104 are all U-shaped bars, one end of the first installation bar 101 is hinged to one end of the second installation bar 102, and the other end is hinged to one end of the third installation bar 103, the second installation bar 102 and the third installation bar 103 are hinged to one end of the third installation bar 103, The other end is provided with a rotatable limit block 105, the limit block 105 is a T-shaped structure, the two ends of the fourth mounting bar 104 are respectively connected to the second mounting bar 102 and the third mounting bar 103, and the two ends of the fourth mounting bar 104 are provided with fixing holes, the fixing holes are set on the limit blocks 105, and then the limit blocks 105 are rotated to cooperate with the limit blocks 105 to achieve positioning. The installation frame adopts a detachable structure, which is convenient for the installation and disassembly of the entire device and cleaning, ensuring the cleanliness of the kitchen. A guide hole is opened on the fourth mounting bar 104, and the bottom of the installation frame 1 is connected to the oil storage device 107 through a guide plate 106. Figure 2 As shown: the second mounting bar 102 is hingedly provided with a fixing device 6 on the side, and the fixing device 6 includes a connecting rod 601, one end of the connecting rod 601 is hinged to the side of the second mounting bar 102, and can be rotated. At the same time, the connecting rod can be fixed by a fixing bolt, so that the fixing device 6 can be folded and unfolded. When folded, it is easy to store and save space. It can be unfolded and then fixed to avoid shaking of the entire device. A support rod 602 is provided on the other end, and the support rod 602 is a hollow device. An adsorption plug 603 is provided on the other end of the support rod 602, and the adsorption plug 603 can be adsorbed at the position where it needs to be fixed. The fixing device 6 is also hinged on the side of the second mounting bar 102.

Claims

1. Kitchen fume filter, characterized by: A mounting frame (1) is provided, wherein a first fixing net (2) is provided at the bottom of the mounting frame (1), a fiber cotton layer (3) is provided on the first fixing net (2), a second fixing net (4) is provided on the fiber cotton layer (3), and a filter plate (5) is provided on the second fixing net (4); the mounting frame (1) comprises a first mounting bar (101), a second mounting bar (102), a third mounting bar (103) and a fourth mounting bar (104), and the first mounting bar (101), the second mounting bar (102), the third mounting bar (103) and the fourth mounting bar (104) are 4) are all U-shaped bars, one end of the first mounting bar (101) is hinged to one end of the second mounting bar (102), and the other end is hinged to one end of the third mounting bar (103), the other ends of the second mounting bar (102) and the third mounting bar (103) are both provided with a rotatable limit block (105), the two ends of the fourth mounting bar (104) are respectively connected to the second mounting bar (102) and the third mounting bar (103), and both ends of the fourth mounting bar (104) are provided with fixing holes, which cooperate with the limit block (105) to achieve limit; The side of the second installation bar (102) is hingedly provided with a fixing device (6), and the fixing device (6) includes a connecting rod (601), one end of the connecting rod (601) is hingedly connected to the side of the second installation bar (102), and the other end is sleeved with a support rod (602), the support rod (602) is a hollow device, and the other end of the support rod (602) is provided with an adsorption plug (603), and the side of the second installation bar (102) is also hingedly provided with the fixing device (6); The first mounting bar (101), the second mounting bar (102), the third mounting bar (103) and the fourth mounting bar (104) can all be adjusted in length.

2. The kitchen fume filter according to claim 1, characterized in that: The filter plate (5) adopts a nickel foam structure, and the nickel foam structure is provided with at least one layer.

3. The kitchen fume filter according to claim 1, characterized in that: The fourth mounting bar (104) is provided with a flow guide hole.

4. The kitchen fume filter according to claim 1, characterized in that: The bottom of the installation frame (1) is connected to the oil and dirt collection device (107) via a guide plate (106).

5. The kitchen fume filter according to claim 1, characterized in that: The filter plate (5) is made of pure nickel.

Citation Information

Patent Citations

  • Lamp-black filter for air exhauster in kitchen

    CN2057112U

  • Kitchen fume filter

    CN213872818U

  • Hood filter for gas range

    KR200321892Y1