A smoke exhaust device with oil fume separation
By introducing components such as a cooling pipe, a cleaning ring, and a heating wire into the smoke exhaust device, the problem of oil sticking is solved, and oil is cooled and scraped off during the oil fume separation process, improving cleaning convenience and smoke exhaust efficiency, and ensuring the filtration effect of particulate matter in the flue gas.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN FUYUBAO KITCHEN EQUIP CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-05
AI Technical Summary
In existing smoke extraction devices, oil stains tend to stick to the inside of the device during oil fume separation, and long-term accumulation affects the subsequent smoke extraction effect.
A cleaning assembly including a cold air pipe, a cleaning ring, a heating element, an electric push rod, and a bellows is designed. The cold air pipe cools the oil stains, the cleaning ring scrapes off the oil stains under the drive of the electric push rod, the heating element heats up the cleaning ring to increase its temperature, the bellows provides protection, and the heating wire collection chamber assists in melting the oil stains. The filter box filters the flue gas particles.
It achieves effective cooling and scraping of oil during the oil fume separation process, avoids oil accumulation, improves the ease of cleaning and smoke exhaust efficiency of the device, and ensures effective filtration of particulate matter in the flue gas.
Smart Images

Figure CN224327271U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smoke extraction technology, specifically to a smoke extraction device that separates oil fumes. Background Technology
[0002] With social progress and the improvement of people's living standards, range hoods are widely used in people's daily lives. A range hood, also known as a cooking hood, is a kitchen appliance that purifies the kitchen environment. It is installed above the kitchen stove and can quickly remove the waste from the stove and the harmful fumes produced during cooking, exhausting them outdoors. At the same time, it condenses and collects the fumes to purify the environment, reduce pollution, and provide safety guarantees against poisoning and explosions.
[0003] However, in existing smoke extraction devices, oil stains tend to stick to the inside of the device during oil fume separation, and after a long period of accumulation, they affect the oil fume separation operation during subsequent smoke extraction. Utility Model Content
[0004] The purpose of this invention is to provide an exhaust device for separating oil fumes, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an oil fume separation exhaust device, comprising a processing box and a cleaning component. The processing box is equipped with a cold air pipe, and the end of the cold air pipe is connected to an end box. The cleaning component for oil stain scraping and cleaning is disposed outside the cold air pipe. The cleaning component includes a cleaning ring, a heating element, a connecting rod, an electric push rod, and a corrugated pipe. The inner wall of the cleaning ring is equipped with a heating element, and the outer side of the cleaning ring is equipped with a connecting rod. The side of the connecting rod is equipped with an electric push rod, and the outer side of the electric push rod is equipped with a corrugated pipe.
[0006] Furthermore, the cleaning ring and the cold air pipe are connected in a sleeve, and the cleaning ring and the connecting rod are spaced apart.
[0007] Furthermore, the side surface of the end box is provided with a vent hole, and a connecting pipe is installed in the middle of the side of the end box.
[0008] Furthermore, an inner guide plate is provided in the middle of the interior of the processing box, and the inner guide plate is in the shape of a right trapezoid.
[0009] Furthermore, a smoke inlet pipe is provided on the left and right sides of the lower end of the processing box, and a collection component for collecting oil stains is provided at the lower end of the interior of the processing box.
[0010] Furthermore, the collecting assembly includes a collecting cavity and a heating wire, and the inner wall of the collecting cavity is provided with a heating wire.
[0011] Furthermore, a smoke outlet pipe is provided on the top of the processing box, and the processing box and the smoke outlet pipe are fixedly connected.
[0012] Furthermore, a filter box is provided at the upper part of the interior of the processing box, and a cover plate is installed on the front side of the processing box.
[0013] This utility model provides a smoke exhaust device for separating oil fumes, which has the following beneficial effects:
[0014] 1. This utility model uses cold air circulating inside the cold air pipe to cool the oil stains in the fumes and separate them on its surface. The cleaning ring moves outside the cold air pipe driven by the electric push rod to scrape off the sticky oil stains, thus preventing excessive oil accumulation and reducing the effectiveness of the cold air pipe. The heating element heats up when energized, which increases the temperature of the cleaning ring and improves the smoothness of its movement outside the cold air pipe, i.e., the ease of cleaning. The corrugated pipe outside the electric push rod provides external protection.
[0015] 2. This utility model reduces the flow rate of oil fumes passing through the outside of the cold air pipe by using an inner guide plate, so that the oil fumes and the cold air pipe can fully contact each other. The collection chamber collects the cleaned oil stains. When cleaning, the heating wire heats up to help melt the oil stains and increase the ease of cleaning. The three sets of filter boxes further filter the smoke particles after the oil fumes are separated, preventing the particles in the smoke from being directly discharged into the air. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a smoke exhaust device for separating oil fumes according to this utility model;
[0017] Figure 2 This is a schematic diagram of the overall internal cross-sectional structure of the smoke exhaust device for oil fume separation according to this utility model;
[0018] Figure 3 This is a schematic diagram of the cleaning component structure of a smoke exhaust device for oil fume separation according to this utility model.
[0019] In the diagram: 1. Processing box; 2. Cooling pipe; 3. End box; 4. Cleaning assembly; 401. Cleaning ring; 402. Heating element; 403. Connecting rod; 404. Electric push rod; 405. Corrugated pipe; 5. Vent hole; 6. Connecting pipe; 7. Inner guide plate; 8. Smoke inlet pipe; 9. Collection assembly; 901. Collection chamber; 902. Heating wire; 10. Smoke outlet pipe; 11. Filter box; 12. Cover plate. Detailed Implementation
[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0021] like Figure 1 and Figure 2As shown, an oil fume separation exhaust device includes a treatment box 1 and a cleaning component 4. A cold air pipe 2 is installed inside the treatment box 1, through which cold air flows, cooling the oil in the fumes and separating it from the oil. An end box 3 is connected to the end of the cold air pipe 2, and a vent hole 5 is provided on the side surface of the end box 3. A connecting pipe 6 is installed in the middle of the side of the end box 3. An inner guide plate 7 is installed in the middle of the interior of the treatment box 1, reducing the flow rate of oil fumes passing through the outside of the cold air pipe 2, ensuring sufficient contact between the oil fumes and the cold air pipe 2. The inner guide plate 7 is a right-angled trapezoid. Smoke inlet pipes 8 are provided on the left and right sides of the lower end of the treatment box 1. A collection component 9 is provided for collecting oil stains. The collection component 9 includes a collection chamber 901 and a heating wire 902. The heating wire 902 is installed on the inner wall of the collection chamber 901. The collection chamber 901 collects the oil stains that have been cleaned. When cleaning, the heating wire 902 heats up to help melt the oil stains and increases the ease of cleaning. A smoke outlet pipe 10 is provided on the top of the processing box 1, and the processing box 1 and the smoke outlet pipe 10 are fixedly connected. A filter box 11 is provided at the upper part of the inside of the processing box 1. Three sets of filter boxes 11 further filter the smoke particles after the oil and smoke are separated to prevent the particles in the smoke from being directly discharged into the air. A cover plate 12 is installed on the front side of the processing box 1.
[0022] like Figure 3 As shown, the cleaning assembly 4 for scraping and cleaning oil stains is located outside the air conditioning pipe 2. The cleaning assembly 4 includes a cleaning ring 401, a heating element 402, a connecting rod 403, an electric push rod 404, and a bellows 405. The heating element 402 is installed on the inner wall of the cleaning ring 401. When the heating element 402 is energized, it heats up, causing the temperature of the cleaning ring 401 to rise, thus improving the smoothness of its movement outside the air conditioning pipe 2, i.e., the ease of cleaning. The bellows 405 acts as an external protection for the electric push rod 404. The cleaning ring 401 is connected to the air conditioning pipe 2, and a connecting rod 403 is installed on the outside of the cleaning ring 401. The cleaning ring 401 and the connecting rod 403 are spaced apart. An electric push rod 404 is installed on the side of the connecting rod 403. The cleaning ring 401 moves outside the air conditioning pipe 2 as driven by the electric push rod 404 to scrape and clean the sticky oil stains, so as to avoid excessive oil stains from accumulating and reducing the performance of the air conditioning pipe 2. A corrugated pipe 405 is installed on the outside of the electric push rod 404.
[0023] In summary, this oil fume separation exhaust device is first based on... Figures 1-3The structure shown in the diagram discharges oil fumes from the inlet pipe 8 into the treatment box 1. Then, the connecting pipe 6 pre-circulates cold air into the cold air pipe 2, allowing the oil in the fumes to cool and separate on its surface. After a certain period of use, the electric push rod 404 extends and retracts, causing the cleaning ring 401 to move outside the cold air pipe 2 to scrape away the sticky oil residue, preventing excessive oil buildup that could reduce the effectiveness of the cold air pipe 2. During cleaning, the heating element 402 is also energized to heat up the cleaning ring 401, increasing its temperature. The smoothness of movement outside the air conditioning pipe 2, i.e. the ease of cleaning, is achieved by collecting the oil stains in the collection chamber 901 after cleaning. When cleaning the collection chamber 901, the heating wire 902 is turned on to help melt the oil stains and increase the ease of cleaning. When the electric push rod 404 moves, the corrugated pipe 405 acts as an external protection for the electric push rod 404. The smoke after oil fume separation passes through the opening in the middle of the inner guide plate 7 to the three sets of filter boxes 11 for further filtration of the smoke particles after oil fume separation, so as to prevent the particles in the smoke from being directly discharged into the air.
[0024] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A fume extraction device for separating oil fumes, comprising a processing box (1) and a cleaning component (4), characterized in that, The processing box (1) is equipped with a cold air pipe (2) inside, and the end of the cold air pipe (2) is connected to an end box (3). The cleaning component (4) for cleaning oil stains is set outside the cold air pipe (2). The cleaning component (4) includes a cleaning ring (401), a heating element (402), a connecting rod (403), an electric push rod (404), and a corrugated pipe (405). The inner wall of the cleaning ring (401) is equipped with a heating element (402), and the outer side of the cleaning ring (401) is equipped with a connecting rod (403). The side of the connecting rod (403) is equipped with an electric push rod (404), and the outer side of the electric push rod (404) is equipped with a corrugated pipe (405).
2. The fume extraction device for oil fume separation according to claim 1, characterized in that, The cleaning ring (401) and the air conditioning pipe (2) are connected by a sleeve, and the cleaning ring (401) and the connecting rod (403) are distributed at intervals.
3. The fume extraction device for oil fume separation according to claim 1, characterized in that, The end box (3) has a ventilation hole (5) on its side surface, and a connecting pipe (6) is installed in the middle of the side of the end box (3).
4. The fume extraction device for oil fume separation according to claim 1, characterized in that, The processing box (1) has an inner guide plate (7) in the middle, and the inner guide plate (7) is a right trapezoid.
5. The fume extraction device for oil fume separation according to claim 1, characterized in that, The lower end of the treatment box (1) is provided with a smoke inlet pipe (8) on the left and right sides, and the lower end of the inside of the treatment box (1) is provided with a collection component (9) for collecting oil stains.
6. The fume extraction device for oil fume separation according to claim 5, characterized in that, The collecting component (9) includes a collecting cavity (901) and a heating wire (902), and the inner wall of the collecting cavity (901) is provided with the heating wire (902).
7. The fume extraction device for oil fume separation according to claim 1, characterized in that, The top of the processing box (1) is provided with a smoke outlet pipe (10), and the processing box (1) and the smoke outlet pipe (10) are fixedly connected.
8. The fume extraction device for oil fume separation according to claim 1, characterized in that, A filter box (11) is provided at the upper end of the inside of the processing box (1), and a cover plate (12) is installed on the front side of the processing box (1).