Cooking fume ventilation and purification system for kitchen

Abstract

The utility model provides an oil fume ventilation and purification system for a kitchen, and relates to the technical field of kitchen oil fume purification. The filter screen assembly is mounted in the smoke suction hood; the limiting mechanisms are arranged on the two sides of the inner wall of the smoke suction hood; the smoke inlet device is fixedly communicated with the top end of the smoke suction cover; the purification mechanism is fixedly communicated with one end of the smoke inlet device; and the smoke discharging mechanism is fixedly communicated with one side of the purifying mechanism. The transmission screw rotates to enable the cleaning scraping plate to move downwards to scrape deposited oil smoke, the oil smoke finally located on the cleaning scraping plate falls into the dirt collecting groove, later cleaning is facilitated, the oil smoke is filtered once through the oil smoke filter screen at the position of the smoke inlet of the smoke suction hood, the oil smoke amount is reduced, later purification treatment is cleaner, and the oil smoke removal efficiency is improved. And through a simple limiting structure, the oil smoke filter screen can be conveniently detached and cleaned in the later period.

Description

Technical Field

[0001] This utility model relates to the technical field of kitchen fume treatment and purification, specifically to a kitchen fume ventilation and purification system. Background Technology

[0002] Cooking fumes are black substances deposited from the incomplete combustion of oily substances. In daily life, kitchens often produce cooking fumes, and long-term inhalation can have adverse effects on the human body. Therefore, a kitchen fume ventilation and purification system is needed.

[0003] Existing oil fume treatment systems first filter the fumes through an initial filter, then charge the fumes in an ionization zone, and finally adsorb them onto adsorption plates with opposite electrodes in an adsorption zone, thus achieving purification. However, the aforementioned common oil fume ventilation and purification systems still have shortcomings:

[0004] Existing oil fume particle adsorption plates typically adsorb oil fumes through a negative electrode adsorption plate. Oil fume particles tend to accumulate near the ionization zone. Excessive accumulation at the front alters the particle path, resulting in poor adsorption in the later adsorption zone. Over time, this leads to poor overall purification performance of the entire system. Utility Model Content

[0005] This invention provides a kitchen fume ventilation and purification system that solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] An embodiment of this utility model provides a kitchen fume ventilation and purification system, comprising:

[0008] Smoking hood;

[0009] A filter assembly is installed inside the fume hood;

[0010] A limiting mechanism is provided on both sides of the inner wall of the smoke hood, and the limiting mechanism is used to limit the filter assembly;

[0011] A smoke inlet device is fixedly connected to the top of the smoke hood, and the smoke inlet device is used to draw in external oil fumes;

[0012] A purification mechanism is fixedly connected to one end of the smoke inlet device, and the purification mechanism is used for purifying and cleaning oil fumes.

[0013] A smoke exhaust mechanism is fixedly connected to one side of the purification mechanism, and the smoke exhaust mechanism is used to ventilate the exhaust gas.

[0014] The above technical solutions are beneficial to enhancing the purification effect of oil fumes, and the filter screen at the smoke inlet is easy to disassemble and clean.

[0015] Furthermore, the limiting mechanism includes two mounting slots, which are located at both ends of the inner wall of the smoking hood. The mounting slots are respectively provided with a plate sliding groove and a snap-fit ​​groove on both sides of the connection between the mounting slot and the smoking hood. A snap-fit ​​block is connected inside the snap-fit ​​groove, and a movable plate device is slidably connected inside the plate sliding groove.

[0016] The above technical solution helps to limit the position of the filter device, making it easy to disassemble.

[0017] Furthermore, the movable card plate device includes a grooved slider, a snap-fit ​​rotating plate is rotatably connected inside the grooved slider, a snap-fit ​​hook plate is connected to one end of the snap-fit ​​rotating plate, a plurality of return springs are provided on one side of the grooved slider, the snap-fit ​​hook plate is snapped into the snap-fit ​​block, the inside of the card plate groove is slidably connected to the surface of the grooved slider, and one end of the return spring is connected to the inner wall of the card plate groove.

[0018] The above technical solution facilitates the limiting of the installation blocks on the filter assembly by using a snap-fit ​​rotating plate, thereby achieving the limiting of the fume filter.

[0019] Furthermore, the filter assembly includes an oil fume filter, with mounting blocks connected to both sides of the oil fume filter, and a collection bowl provided at the center of the bottom end of the oil fume filter.

[0020] The above technical solutions are beneficial for the initial cleaning and filtration of oil fumes.

[0021] Furthermore, the smoke inlet device includes a smoke inlet pipe, and a smoke extraction fan is installed inside the smoke inlet pipe.

[0022] Furthermore, the purification mechanism includes a purification box, a pre-filter is connected to one side of the inner wall of the purification box, an ionization zone is provided in the middle of the inner wall of the purification box, a cleaning mechanism is installed on the other side of the inner wall of the purification box, and two positive electrode plates and a negative electrode plate are provided on the top of the cleaning mechanism.

[0023] Furthermore, the cleaning mechanism includes a cavity base, the inner cavity of which is equipped with two drive motors. The output ends of the two drive motors are connected to drive screws, and the surfaces of the two drive screws are threaded with oil scrapers. The sides of the oil scrapers are provided with three sliding holes, and the interiors of the three sliding holes are provided with sliding rods. A sludge collection groove is provided on one side of the connection between the two negative electrode plates and the cavity base. A cleaning switch is installed on one side of the surface of the fume hood, and the drive motors are electrically connected to an external power source through the cleaning switch.

[0024] Through the above technical solution, the rotation of the transmission screw causes the cleaning scraper to move downwards, scraping off the deposited oil fumes. Finally, the oil fumes on the cleaning scraper will fall into the inside of the sludge collection tank, making it convenient for later cleaning.

[0025] Furthermore, the smoke exhaust mechanism includes a smoke outlet pipe, and a smoke exhaust fan is installed inside the smoke outlet pipe.

[0026] The above-described solution of this utility model has at least the following beneficial effects:

[0027] This invention involves activating a cleaning switch to rotate a drive motor, which in turn rotates a drive screw. A cleaning scraper is installed in the main adsorption area of ​​the negative electrode plate, and the scraper has screw holes and three sliding holes at its four corners. The rotation of the drive screw causes the scraper to move downwards, scraping off the deposited oil fumes. The oil fumes on the scraper eventually fall into the sludge collection tank for easy cleaning later.

[0028] In this invention, at the smoke inlet of the fume hood, the oil fume filter first filters the oil fumes, reducing the amount of oil fumes and making the subsequent purification process cleaner. Furthermore, the simple limiting structure facilitates the easy removal and cleaning of the oil fume filter later. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the oil fume ventilation and purification system of this utility model;

[0030] Figure 2 This is an internal schematic diagram of the fume hood of the oil fume ventilation and purification system of this utility model;

[0031] Figure 3 This is a partial enlarged view (A) of the interior of the fume hood of the oil fume ventilation and purification system of this utility model;

[0032] Figure 4 This is a schematic diagram of the overall structure of the filter assembly of the oil fume ventilation and purification system of this utility model;

[0033] Figure 5 This is a schematic diagram of the movable pallet device of the oil fume ventilation and purification system of this utility model;

[0034] Figure 6 This is a schematic diagram of the internal structure of the purification mechanism of the oil fume ventilation and purification system of this utility model;

[0035] Figure 7 This is a schematic diagram of the bottom structure of the cleaning mechanism of the oil fume ventilation and purification system of this utility model;

[0036] Figure 8 This is a top view of the cleaning mechanism of the oil fume ventilation and purification system of this utility model.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Fume hood; 2. Filter assembly; 21. Oil fume filter; 22. Mounting clip; 23. Collection bowl; 3. Clip groove; 4. Clip block; 5. Mounting groove; 6. Moving clip device; 61. Grooved slider; 62. Clip rotating plate; 63. Clip hook plate; 64. Return spring; 7. Smoke inlet pipe; 8. Exhaust fan; 9. Purification box; 10. Pre-filter; 11. Ionization zone; 12. Positive electrode plate; 13. Negative electrode plate; 14. Cleaning mechanism; 141. Cavity base; 142. Drive motor; 143. Drive screw; 144. Slide rod; 145. Oil scraper; 146. Sludge collection tank; 15. Smoke outlet pipe; 16. Exhaust fan. Detailed Implementation

[0039] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0040] like Figures 1 to 8 As shown, an embodiment of this utility model provides a kitchen fume ventilation and purification system, comprising:

[0041] Smoking hood 1;

[0042] Filter assembly 2 is installed inside the fume hood 1;

[0043] A limiting mechanism is provided on both sides of the inner wall of the smoke hood 1. The limiting mechanism is used to limit the filter assembly 2.

[0044] The smoke inlet device is fixedly connected to the top of the smoke hood 1 and is used to draw in external oil fumes.

[0045] The purification mechanism is fixedly connected to one end of the smoke inlet device and is used for the purification and cleaning of oil fumes.

[0046] The smoke exhaust system is fixedly connected to one side of the purification unit and is used to ventilate the exhaust system.

[0047] like Figures 1 to 5As shown, the limiting mechanism includes two mounting slots 5, which are opened at both ends of the inner wall of the fume hood 1. The mounting slots 5 and the fume hood 1 are respectively provided with a plate sliding groove and a snap-fit ​​groove 3 on both sides. The snap-fit ​​groove 3 is connected to a snap-fit ​​block 4. The plate sliding groove is slidably connected to a movable plate device 6. The movable plate device 6 includes a grooved slider 61. The grooved slider 61 is rotatably connected to a snap-fit ​​rotating plate 62. One end of the snap-fit ​​rotating plate 62 is connected to a snap-fit ​​hook plate 63. A plurality of return springs 64 are provided on one side of the grooved slider 61. The snap-fit ​​hook plate 63 is engaged with the snap-fit ​​block 4. The inside of the plate sliding groove is slidably connected to the surface of the grooved slider 61. One end of the return spring 64 is connected to the inner wall of the plate sliding groove. The filter assembly 2 includes an oil fume filter 21. The oil fume filter 21 is connected to both sides with mounting blocks 22. The oil fume filter 21 is provided with a collection bowl 23 in the middle of the bottom end.

[0048] In this embodiment, the external fumes are drawn away by the exhaust fan 8 through the fume hood 1. First, the fumes pass through the fume filter 21 for initial filtration. After prolonged use, a certain amount of oil will form from the fumes. Because the bottom of the fume filter 21 is a convex conical surface, and a collection bowl 23 is connected directly below this surface, the formed oil will drip into the inside of the collection bowl 23. After prolonged use, it needs to be cleaned. At this time, the grooved slider 61 needs to be pushed further in the direction of compression of the return spring 64, thereby engaging the hook. The engagement between plate 63 and the snap-fit ​​block 4 is released. Rotate the snap-fit ​​rotating plate 62 to move it away from the inside of the snap-fit ​​groove 3. At this time, the restriction of the mounting snap-fit ​​block 22 is removed, and it can be removed for cleaning. When it needs to be installed after cleaning, align the mounting snap-fit ​​block 22 with the mounting groove 5, push the grooved slider 61 in the direction of compression of the return spring 64, rotate the snap-fit ​​rotating plate 62 to move it into the snap-fit ​​groove 3, release the snap-fit ​​rotating plate 62 and the return spring 64 returns to its original state. The snap-fit ​​hook plate 63 snaps onto the snap-fit ​​block 4, thus achieving the limitation of the mounting snap-fit ​​block 22.

[0049] like Figures 6 to 7As shown, the smoke inlet device includes a smoke inlet pipe 7, inside which a smoke extraction fan 8 is installed. The purification mechanism includes a purification box 9, with a pre-filter 10 connected to one side of the inner wall of the purification box 9. An ionization zone 11 is provided in the middle of the inner wall of the purification box 9. A cleaning mechanism 14 is installed on the other side of the inner wall of the purification box 9. Two positive electrode plates 12 and a negative electrode plate 13 are provided on the top of the cleaning mechanism 14. The cleaning mechanism 14 includes a cavity base 141, and two drive motors 142 are installed in the cavity of the cavity base 141. The output of the two drive motors 142... Both ends are connected to a transmission screw 143. The surfaces of the two transmission screws 143 are threaded with an oil scraper 145. The side of the oil scraper 145 is provided with three sliding holes. The interior of each of the three sliding holes is provided with a sliding rod 144. The side of the connection between the two negative electrode plates 13 and the cavity base 141 is provided with a sludge collection tank 146. A cleaning switch is installed on one side of the surface of the smoke hood 1. The transmission motor 142 is electrically connected to an external power supply through the cleaning switch. The smoke exhaust mechanism includes a smoke outlet pipe 15. A smoke exhaust fan 16 is provided inside the smoke outlet pipe 15.

[0050] In this embodiment, after initial cleaning by the fume filter 21, the fumes enter the purification box 9 and undergo initial filtration by the pre-filter 10. After filtration, the fumes pass through the ionization zone 11, which typically uses multiple negatively charged ionization plates to impart a positive charge to the passing fume particles. These positively charged particles then pass through the area between the positive electrode plate 12 and the negative electrode plate 13, which is the adsorption area. The positively charged particles are adsorbed onto the negative electrode plate 13 by this positive-negative-positive-negative arrangement. After prolonged use, a significant amount of grease accumulates in the main adsorption area of ​​the negative electrode plate 13, leading to a decrease in adsorption efficiency. Therefore, regular cleaning is required. The drive motor 142 is activated by the cleaning switch. The output of the drive motor 142 is connected to a drive screw 143, which scrapes away the grease. The plate 145 is made of non-metallic material, and four long support rods are connected to its outer side. One end of one of the support rods has a screw hole, and the rest are sliding holes. The screw hole is threaded to the transmission screw 143, and the sliding hole is slidably connected to the slide rod 144. The rotation of the transmission screw 143 causes the oil scraper 145 to move downwards in close contact with the negative electrode plate 13, scraping off the oil deposited on the negative electrode plate 13. Then the oil scraper 145 returns to its original position. The scraped oil may adhere to the oil scraper 145, but after repeated use, the oil adhering to the oil scraper 145 will fall into the inside of the sludge collection tank 146. The oil deposited on the oil scraper 145 will not affect the adsorption effect of the negative electrode plate 13. After the oil fume passing through the adsorption zone is purified to the maximum extent, it is finally discharged to the outside through the exhaust fan 16 installed inside the smoke outlet pipe 15.

[0051] In this embodiment of the invention, the working principle is as follows: by activating the cleaning switch, the drive motor 142 rotates, which in turn drives the drive screw 143 to rotate. The oil sludge scraper 145 is installed in the main adsorption area of ​​the negative electrode plate 13, and the four corners of the oil sludge scraper 145 are respectively provided with screw holes and three sliding holes. The rotation of the drive screw 143 causes the oil sludge scraper 145 to move downwards and scrape off the deposited oil fumes. Finally, the oil fumes on the oil sludge scraper 145 will fall into the inside of the sludge collection tank 146 for easy cleaning later.

[0052] In this embodiment of the utility model, at the smoke inlet of the smoke hood 1, the oil fume filter 21 first filters the oil fume, reducing the amount of oil fume and making the subsequent purification process cleaner. Furthermore, the simple limiting structure facilitates the easy removal and cleaning of the oil fume filter 21 later.

[0053] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A kitchen fume ventilation and purification system, characterized in that, include: Smoking hood (1); A filter assembly (2) is installed inside the fumigation hood (1); A limiting mechanism is provided on both sides of the inner wall of the smoking hood (1), and the limiting mechanism is used to limit the filter assembly (2). A smoke inlet device is fixedly connected to the top of the smoke hood (1) and is used to draw in external fumes. A purification mechanism is fixedly connected to one end of the smoke inlet device, and the purification mechanism is used for purifying and cleaning oil fumes. A smoke exhaust mechanism is fixedly connected to one side of the purification mechanism, and the smoke exhaust mechanism is used to ventilate the exhaust gas.

2. The kitchen fume ventilation and purification system according to claim 1, characterized in that, The limiting mechanism includes two mounting slots (5), which are located at both ends of the inner wall of the smoking hood (1). The mounting slots (5) and the smoking hood (1) are respectively provided with a card plate slide groove and a carding groove (3) on both sides. A carding block (4) is connected inside the carding groove (3), and a movable card plate device (6) is slidably connected inside the card plate slide groove.

3. A kitchen fume ventilation and purification system according to claim 2, characterized in that, The movable card plate device (6) includes a grooved slider (61), a snap-fit ​​rotating plate (62) is rotatably connected inside the grooved slider (61), a snap-fit ​​hook plate (63) is connected to one end of the snap-fit ​​rotating plate (62), a plurality of return springs (64) are provided on one side of the grooved slider (61), the snap-fit ​​hook plate (63) is engaged with the snap-fit ​​block (4), the inside of the card plate groove is slidably connected to the surface of the grooved slider (61), and one end of the return spring (64) is connected to the inner wall of the card plate groove.

4. A kitchen fume ventilation and purification system according to claim 2, characterized in that, The filter assembly (2) includes an oil fume filter (21), with mounting blocks (22) connected to both sides of the oil fume filter (21), and a collection bowl (23) provided in the middle of the bottom end of the oil fume filter (21).

5. A kitchen fume ventilation and purification system according to claim 4, characterized in that, The smoke inlet device includes a smoke inlet pipe (7), and a smoke extraction fan (8) is installed inside the smoke inlet pipe (7).

6. A kitchen fume ventilation and purification system according to claim 1, characterized in that, The purification mechanism includes a purification box (9), a pre-filter (10) is connected to one side of the inner wall of the purification box (9), an ionization zone (11) is provided in the middle of the inner wall of the purification box (9), and a cleaning mechanism (14) is installed on the other side of the inner wall of the purification box (9). The top of the cleaning mechanism (14) is provided with two positive electrode plates (12) and a negative electrode plate (13).

7. A kitchen fume ventilation and purification system according to claim 6, characterized in that, The cleaning mechanism (14) includes a cavity base (141), and two drive motors (142) are installed in the cavity of the cavity base (141). The output ends of the two drive motors (142) are connected to drive screws (143). The surfaces of the two drive screws (143) are threaded with oil scrapers (145). The sides of the oil scrapers (145) are provided with three sliding holes. The interior of the three sliding holes is provided with sliding rods (144). The sides of the two negative electrode plates (13) connected to the cavity base (141) are provided with dirt collection grooves (146). A cleaning switch is installed on one side of the surface of the fumigation hood (1). The drive motors (142) are electrically connected to an external power supply through the cleaning switch.

8. A kitchen fume ventilation and purification system according to claim 1, characterized in that, The smoke exhaust mechanism includes a smoke outlet pipe (15), and a smoke exhaust fan (16) is installed inside the smoke outlet pipe (15).

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