Commercial range hood

Abstract

The application relates to the technical field of range hoods, and particularly discloses a commercial range hood, which comprises an upper cabinet and a lower cabinet, a fan is arranged in the upper cabinet, an oil fume inlet is arranged on the lower cabinet, a movable oil draining plate and a fixed oil draining plate are arranged on the oil fume inlet, the movable oil draining plate is hingedly arranged and is connected with the fixed oil draining plate in a clamping mode, a first collecting groove is slidably arranged at the bottom of the lower cabinet, and a first opening is arranged on the sidewall of the lower cabinet and used for sliding out the first collecting groove. During the working process of the range hood, when the oil dirt in the first collecting groove needs to be cleaned up to a certain degree, the first collecting groove can be slid out through the first opening, so that the cleaning and replacement can be conveniently carried out, the cleaning and maintenance convenience is greatly improved, and the problem that the oil dirt at the bottom of the oil collecting cavity of the traditional range hood is difficult to clean up is solved.

Description

Technical Field

[0001] This application relates to the field of range hood technology, and more particularly to a commercial range hood. Background Technology

[0002] Existing commercial kitchen fume capture and purification systems emphasize end-of-pipe treatment, meaning that the fumes are collected by the exhaust hood above the stove and then enter the fume purification equipment through the exhaust pipe for centralized purification. The purified gas is then discharged outdoors through the pipe.

[0003] Patent document CN218269219U discloses a range hood for commercial kitchens. It uses an oil fume filter plate to condense and absorb most of the oil fumes, thereby reducing oil buildup on the inner wall of the oil collection chamber, reducing odor generation, and decreasing the frequency of cleaning the oil collection chamber. The remaining gas is further purified by a purification device and discharged through an external pipe, reducing pollution to the external environment. While this design has certain positive aspects, it also has some drawbacks. For example, oil fumes accumulate in the oil collection chamber after prolonged use. Although an oil drain pipe is installed, the accumulated oil at the bottom of the oil collection chamber is difficult to clean, posing challenges for later cleaning and maintenance. Utility Model Content

[0004] The purpose of this application is to provide a commercial range hood to solve the above-mentioned problems.

[0005] To achieve the above objectives, the technical solution of this application is as follows:

[0006] A commercial range hood includes an upper cabinet and a lower cabinet. The upper cabinet is equipped with a fan, and the lower cabinet is equipped with a fume inlet. The fume inlet is equipped with a movable oil-draining plate and a fixed oil-draining plate. The movable oil-draining plate is hinged and engages with the fixed oil-draining plate. The bottom of the lower cabinet is provided with a first collection groove, and the side wall of the lower cabinet is provided with a first opening for the first collection groove to slide out.

[0007] Preferably, the upper cabinet is provided with an air duct, and the fan is disposed in the air duct; the lower half of the lower cabinet is provided with a sludge storage chamber, and the first collection trough is slidably disposed at the bottom of the sludge storage chamber.

[0008] Preferably, the front and rear side walls of the first collection tank are provided with mounting grooves, and oil-absorbing paper is provided in the mounting grooves.

[0009] Preferably, the end of the first collection tank away from the first opening is provided with a first oil drain pipe; the side wall of the lower cabinet is provided with a through hole for the first oil drain pipe to extend out.

[0010] Preferably, the bottom of the sludge storage chamber is provided with an oil drain hole, the outer bottom of the lower cabinet is provided with a second collection tank, the top of the second collection tank is provided with a snap-fit ​​plate, the outer bottom of the lower cabinet is provided with a snap-fit ​​groove, and the snap-fit ​​plate and the snap-fit ​​groove are snap-fitted together; the end of the second collection tank away from the first opening is provided with a second oil drain pipe.

[0011] Preferably, the lower edge of the fixed oil draining plate is fixedly set, the upper edge is provided with a groove, and the side wall of the groove is provided with an arc-shaped protrusion; the upper edge of the movable oil draining plate is hinged, the lower edge is provided with a buckle, and the buckle is provided with a groove.

[0012] When the buckle is located in the slot, the arc-shaped protrusion is located in the groove.

[0013] Preferably, an odor-removing filter layer is slidably provided in the upper half of the lower cabinet. The odor-removing filter layer includes a first mounting frame and a carbon adsorption filter. The carbon adsorption filter is stacked in three layers, and all three layers of the carbon adsorption filter are disposed in the first mounting frame.

[0014] Preferably, a first anti-blocking hole is provided through the carbon adsorption filter screen located in the middle, and a second anti-blocking hole is provided through the carbon adsorption filter screen located on both sides, with the first anti-blocking hole and the second anti-blocking hole being offset from each other.

[0015] Preferably, an oil fume removal layer is slidably provided in the upper half of the lower cabinet, and the oil fume removal layer is located below the odor removal filter layer; the oil fume removal layer includes a second mounting bracket and two stacked filters.

[0016] Preferably, both the filter and the second mounting bracket have a "V" shaped structure.

[0017] The commercial range hood disclosed in this application allows for easy cleaning and replacement when the grease in the first collection tank accumulates to a certain level during operation. This is achieved by simply sliding the first collection tank out through the first opening, greatly improving the convenience of cleaning and maintenance and solving the problem of difficult cleaning of grease at the bottom of the oil collection chamber in traditional range hoods. Attached Figure Description

[0018] Figure 1 This is an exploded view of the overall structure of this application;

[0019] Figure 2 for Figure 1 Another structural diagram;

[0020] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0021] Figure 4 for Figure 2 Enlarged view of a portion of point B in the middle;

[0022] Figure 5 This is a longitudinal section sectional view of the overall structure of this application;

[0023] Figure 6 for Figure 5 Enlarged view of a portion of point C in the middle;

[0024] Figure 7 for Figure 5 3D schematic diagram;

[0025] Figure 8 for Figure 7 Enlarged view of a portion of point D;

[0026] Figure 9 This is a schematic diagram of the odor-removing adsorption layer structure in this application;

[0027] Figure 10 This is a schematic diagram of the internal structure of the odor-removing adsorption layer in this application;

[0028] Figure 11 This is a schematic diagram of the buckle and slot structure in this application.

[0029] In the picture:

[0030] 1. Upper cabinet; 10. Exhaust chamber; 11. Fan; 2. Lower cabinet; 20. Movable oil drain plate; 200. Buckle; 201. Groove; 21. Fixed oil drain plate; 210. Slot; 211. Arc-shaped protrusion; 22. Oil drain hole; 23. Through hole; 24. Sludge storage chamber; 25. Snap-fit ​​groove; 3. First collection tank; 30. First oil drain pipe; 31. Mounting groove; 4. Odor removal filter layer; 40. First mounting bracket; 41. Carbon adsorption filter screen; 42. First anti-blocking hole; 43. Second anti-blocking hole; 5. Oil fume removal layer; 50. Second mounting bracket; 51. Filter screen; 6. Second collection tank; 60. Second oil drain pipe; 61. Snap-fit ​​plate; 7. Sealing cover plate. Detailed Implementation

[0031] The present application will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present application, and therefore only show the components relevant to the present application.

[0032] like Figure 1-11 As shown, a commercial range hood includes an upper cabinet 1 and a lower cabinet 2. The upper cabinet 1 is equipped with a fan 11, and the lower cabinet 2 is equipped with an oil fume inlet. The oil fume inlet is equipped with a movable oil drain plate 20 and a fixed oil drain plate 21. The movable oil drain plate 20 is hinged and engages with the fixed oil drain plate 21. The bottom of the lower cabinet 2 is provided with a first collection groove 3, and the side wall of the lower cabinet 2 is provided with a first opening for the first collection groove 3 to slide out.

[0033] The commercial range hood consists of an upper cabinet 1 and a lower cabinet 2. The upper cabinet 1 is equipped with a fan 11, which is the core power component of the range hood. The fan 11 generates negative pressure through high-speed rotation, thereby drawing the cooking fumes in the kitchen into the range hood.

[0034] The lower cabinet 2 is equipped with an oil fume inlet, at which a movable oil drain plate 20 and a fixed oil drain plate 21 are installed. The movable oil drain plate 20 is hinged and can be snapped into place with the fixed oil drain plate 21. This design allows the movable oil drain plate 20 to be opened and closed flexibly, facilitating cleaning or replacement when needed. When oil fumes enter from the oil fume inlet, the movable oil drain plate 20 and the fixed oil drain plate 21 will first filter the oil fumes, intercepting most of the larger oil droplets and impurities, reducing the burden on subsequent purification processes. A first collection trough 3 is slidably installed at the bottom of the lower cabinet 2, and a first opening is provided on the side wall of the lower cabinet 2 for the first collection trough 3 to slide out.

[0035] During the operation of the range hood, when the oil stains in the first collection tank 3 accumulate to a certain level and need to be cleaned, the first collection tank 3 can be easily slid out through the first opening for cleaning and replacement, which greatly improves the convenience of cleaning and maintenance and solves the problem of difficult oil stains at the bottom of the oil collection chamber of traditional range hoods.

[0036] In some further embodiments, the upper cabinet 1 is provided with an air duct 10, and a fan 11 is disposed in the air duct 10; the lower half of the lower cabinet 2 is provided with a sludge storage chamber 24, and a first collection trough 3 is slidably disposed at the bottom of the sludge storage chamber 24.

[0037] The upper cabinet 1 contains an air intake chamber 10, within which a fan 11 is housed. The lower half of the lower cabinet 2 contains a sludge storage chamber 24, with a first collection trough 3 slidably positioned at the bottom of this chamber. The sludge storage chamber 24 provides a relatively independent space for the first collection trough 3, allowing for better collection and storage of grease. Furthermore, placing the sludge storage chamber 24 in the lower half of the lower cabinet 2 conforms to the natural descent of grease, facilitating its collection and management. This structure makes the internal layout of the range hood more rational, the functions of each component more clearly defined, and improves overall performance.

[0038] In some further embodiments, the front and rear side walls of the first collection tank 3 are provided with mounting grooves 31, and oil-absorbing paper is provided in the mounting grooves 31.

[0039] The front and rear side walls of the first collection tank 3 are provided with mounting grooves 31, and oil-absorbing paper is placed in the mounting grooves 31. The oil-absorbing paper has good oil absorption performance and can absorb some of the oil droplets that drip or seep into the front and rear side walls of the first collection tank 3 and the sludge storage chamber 24, avoiding frequent cleaning of the bottom of the sludge storage chamber 24. In actual use, only the oil-absorbing paper needs to be replaced periodically, without the need for complicated cleaning of the entire first collection tank 3, saving cleaning time and labor costs. Moreover, the oil-absorbing paper is inexpensive and easy to obtain, reducing the operating cost of the range hood.

[0040] In some further embodiments, the first collection tank 3 is provided with a first oil drain pipe 30 at the end away from the first opening; the side wall of the lower cabinet 2 is provided with a through hole 23 for the first oil drain pipe 30 to extend out.

[0041] When a large amount of oil accumulates in the first collection tank 3, it can be drained into an external container through the first oil drain pipe 30. This design avoids the inconvenience of manually removing the first collection tank 3 to empty the oil, especially when the oil is heavy or plentiful; using the first oil drain pipe 30 for draining is safer and more efficient. The first oil drain pipe 30 extends from the side wall of the lower cabinet 2 through the through hole 23, with a reasonable layout that will not affect the normal operation of other components of the range hood, while also facilitating the connection and operation of the first oil drain pipe 30.

[0042] The first oil pipe 30 can be connected to a specific collection container.

[0043] In some further embodiments, the bottom of the sludge storage chamber 24 is provided with an oil drain hole 22, the bottom of the lower cabinet 2 is provided with a second collection tank 6, the top of the second collection tank 6 is provided with a snap-fit ​​plate 61, the bottom of the lower cabinet 2 is provided with a snap-fit ​​groove 25, and the snap-fit ​​plate 61 and the snap-fit ​​groove 25 are snap-fitted together; the end of the second collection tank 6 away from the first opening is provided with a second oil drain pipe 60.

[0044] This snap-fit ​​design allows the second collection tank 6 to be securely installed on the bottom exterior of the lower cabinet 2, while also facilitating disassembly and cleaning. When oil sludge in the sludge storage chamber 24 flows out through the oil drain hole 22, it enters the second collection tank 6 for collection. A second oil drain pipe 60 is located at the end of the second collection tank 6 furthest from the first opening. When the oil sludge in the second collection tank 6 accumulates to a certain amount, it can be drained through the second oil drain pipe 60. By setting up the second collection tank 6 and the second oil drain pipe 60, the oil sludge collection and discharge capacity of the range hood is further increased, ensuring that oil sludge can be treated promptly and effectively, preventing oil sludge accumulation from damaging the range hood.

[0045] In some further embodiments, the lower edge of the fixed oil drain plate 21 is fixedly disposed, and the upper edge is provided with a groove 210. The side wall of the groove 210 is provided with an arc-shaped protrusion 211. The upper edge of the movable oil drain plate 20 is hinged, and the lower edge is provided with a buckle 200. The buckle 200 is provided with a groove 201. When the buckle 200 is located in the groove 210, the arc-shaped protrusion 211 is located in the groove 201.

[0046] When it is necessary to connect the movable oil drain plate 20 to the fixed oil drain plate 21, the buckle 200 of the movable oil drain plate 20 is inserted into the slot 210 of the fixed oil drain plate 21. At this time, the arc-shaped protrusion 211 will engage with the groove 201, achieving a firm connection between the movable oil drain plate 20 and the fixed oil drain plate 21. This snap-fit ​​structure is simple and reliable, and easy to install and disassemble. When it is necessary to clean or replace the oil drain plate, simply pull the movable oil drain plate 20 forcefully to disengage the groove 201 from the limit of the arc-shaped protrusion 211, and the movable oil drain plate 20 can be opened. The matching design of the arc-shaped protrusion 211 and the groove 201 ensures the stability and sealing of the snap-fit, prevents oil fumes from leaking from the connection of the oil drain plates, and improves the smoke extraction effect of the range hood.

[0047] The arc-shaped protrusion 211 and the groove 201 can be made of high-temperature resistant and elastic rubber material.

[0048] In some further embodiments, an odor removal filter layer 4 is slidably provided in the upper half of the lower cabinet 2. The odor removal filter layer 4 includes a first mounting frame 40 and a carbon adsorption filter 41. The carbon adsorption filter 41 is stacked in three layers, and all three layers of carbon adsorption filter 41 are disposed in the first mounting frame 40.

[0049] After the cooking fumes pass through the initial filtration plate, they enter the odor-removing filter layer 4. The carbon adsorption filter 41 has a large number of microporous structures, which can adsorb odor molecules in the cooking fumes, thereby achieving the purpose of odor removal. The three-layer stacked carbon adsorption filter 41 increases the adsorption area and adsorption effect, which can more thoroughly remove odors from the cooking fumes and improve kitchen air quality. The first mounting bracket 40 provides a stable support and installation structure for the carbon adsorption filter 41, while the sliding design allows the odor-removing filter layer 4 to be easily removed for cleaning or replacement, ensuring the durability of the odor removal effect.

[0050] In some further embodiments, a first anti-blocking hole 42 is provided through the carbon adsorption filter 41 located in the middle, and a second anti-blocking hole 43 is provided through the carbon adsorption filter 41 located on both sides, with the first anti-blocking hole 42 and the second anti-blocking hole 43 being offset from each other.

[0051] During the operation of the range hood, the anti-obstruction holes ensure smooth passage of cooking fumes as they pass through the odor-removing filter layer 4, reducing airflow resistance and improving the range hood's extraction efficiency. Simultaneously, the staggered anti-obstruction holes create a more complex flow path for the fumes as they pass through the carbon adsorption filter 41, increasing the contact time and area between the fumes and the filter, further enhancing odor adsorption. This design ensures both the performance of the range hood and optimizes its odor removal function, allowing it to maintain high efficiency while effectively eliminating odors.

[0052] In some further embodiments, an oil fume removal layer 5 is slidably provided in the upper half of the lower cabinet 2, and the oil fume removal layer 5 is located below the odor removal filter layer 4; the oil fume removal layer 5 includes a second mounting bracket 50 and two stacked filters 51.

[0053] The two stacked filters 51 first filter the fumes, intercepting oil droplets and impurities in the fumes, and then remove odors through the odor-removing filter layer 4, making the gas discharged outdoors cleaner.

[0054] The second mounting bracket 50 provides an installation and support structure for the filter 51. Its sliding design facilitates the cleaning and replacement of the oil fume removal layer 5, ensuring the stability of the oil fume removal effect. The layered arrangement of the oil fume removal layer 5 and the odor-removing filter layer 4 makes the range hood's treatment of oil fumes more organized and efficient, improving the overall purification effect.

[0055] In some further embodiments, both the filter 51 and the second mounting bracket 50 are V-shaped.

[0056] Both the filter screen 51 and the second mounting bracket 50 have a "V" shape. The "V" shape design increases the filtration area of ​​the filter screen 51, allowing more filter screen material to be accommodated within the same space, thus improving the filtration effect. Simultaneously, the "V" shape allows oil to drip naturally into the collection tank below under gravity, reducing oil accumulation on the filter screen 51 and extending its service life. The "V" shape of the second mounting bracket 50 is compatible with the filter screen 51, providing stable support and ensuring the normal use and filtration effect of the "V" shaped filter screen 51.

[0057] The odor removal filter layer 4, the oil fume removal layer 5, and the first opening are all equipped with sealing covers 7. The sealing covers 7 can be connected to the outer wall of the lower cabinet 2 by screws.

[0058] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this application.

Claims

1. A commercial range hood characterized by, The device includes an upper cabinet (1) and a lower cabinet (2). The upper cabinet (1) is equipped with a fan (11). The lower cabinet (2) is equipped with an oil fume inlet. The oil fume inlet is equipped with a movable oil drain plate (20) and a fixed oil drain plate (21). The movable oil drain plate (20) is hinged and engaged with the fixed oil drain plate (21). The bottom of the lower cabinet (2) is provided with a first collection groove (3). The side wall of the lower cabinet (2) is provided with a first opening for the first collection groove (3) to slide out.

2. The commercial range hood of claim 1, wherein, The upper cabinet (1) is provided with an air duct (10), and the fan (11) is installed in the air duct (10); the lower half of the lower cabinet (2) is provided with a sludge storage chamber (24), and the first collection trough (3) is slidably installed at the bottom of the sludge storage chamber (24).

3. The commercial range hood of claim 1, wherein, The first collection tank (3) has an installation groove (31) on its front and rear side walls, and the installation groove (31) contains oil-absorbing paper.

4. The commercial range hood of claim 1, wherein, The first collection tank (3) is provided with a first oil drain pipe (30) at the end away from the first opening; the side wall of the lower cabinet (2) is provided with a through hole (23) for the first oil drain pipe (30) to extend out.

5. The commercial range hood of claim 2, wherein, The bottom of the sludge storage chamber (24) is provided with an oil drain hole (22), the bottom of the lower cabinet (2) is provided with a second collection tank (6), the top of the second collection tank (6) is provided with a snap-fit ​​plate (61), the bottom of the lower cabinet (2) is provided with a snap-fit ​​groove (25), and the snap-fit ​​plate (61) and the snap-fit ​​groove (25) are snap-fitted together; the end of the second collection tank (6) away from the first opening is provided with a second oil drain pipe (60).

6. The commercial range hood of claim 1, wherein, The lower edge of the fixed oil drain plate (21) is fixedly set, and the upper edge is provided with a slot (210). The side wall of the slot (210) is provided with an arc-shaped protrusion (211). The upper edge of the movable oil drain plate (20) is hinged, and the lower edge is provided with a buckle (200). The buckle (200) is provided with a groove (201). When the buckle (200) is located in the slot (210), the arc-shaped protrusion (211) is located in the groove (201).

7. The commercial range hood of claim 1, wherein, The upper half of the lower cabinet (2) is provided with an odor removal filter layer (4). The odor removal filter layer (4) includes a first mounting frame (40) and a carbon adsorption filter (41). The carbon adsorption filter (41) is stacked in three layers, and all three layers of the carbon adsorption filter (41) are arranged in the first mounting frame (40).

8. The commercial range hood of claim 7, wherein, A first anti-blocking hole (42) is provided through the carbon adsorption filter (41) located in the middle, and a second anti-blocking hole (43) is provided through the carbon adsorption filter (41) located on both sides. The first anti-blocking hole (42) is offset from the second anti-blocking hole (43).

9. The commercial range hood of claim 7, wherein, The upper half of the lower cabinet (2) is provided with an oil fume removal layer (5), which is located below the odor removal filter layer (4); the oil fume removal layer (5) includes a second mounting bracket (50) and two stacked filters (51).

10. The commercial range hood of claim 9, wherein, Both the filter (51) and the second mounting bracket (50) have a "V" shaped structure.

Images