CN217274374U

CN217274374U - Ultraviolet ray oil net petticoat pipe

Info

Publication number: CN217274374U
Application number: CN202220578262.6U
Authority: CN
Inventors: 沈仲辉; 胡朝群
Original assignee: Ningbo Great Prospect Kitchen Engineering Co ltd
Current assignee: Ningbo Great Prospect Kitchen Engineering Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-08-23
Anticipated expiration: 2032-03-16

Abstract

The utility model discloses an ultraviolet oil net smoke hood, which comprises a shell, wherein an air exhaust cavity is arranged in the shell, a lower end smoke collecting cavity of the shell is provided with an UV oil net on the side wall of one end of the smoke collecting cavity close to a cooking bench, a UV lamp assembly is arranged in the air exhaust cavity, and a cleaning mechanism is used for respectively cleaning the UV lamp assembly and the UV oil net; the other end of the shell is provided with a first air outlet cavity, an air curtain fan is arranged in the first air outlet cavity, and an air inlet of the air curtain fan is communicated with the outside; the lower end of the shell is provided with an air curtain air outlet which is communicated with the first air outlet cavity; the position that corresponds with UV banks spare on the collection cigarette chamber lateral wall still is equipped with the access window, and the outside detachable of access window is equipped with the apron with collection cigarette chamber lateral wall parallel and level. The utility model discloses an ultraviolet ray oil net petticoat pipe, simple structure can realize petticoat pipe inner chamber subassembly self-cleaning to under the condition of low amount of wind of taking out, also can be better assurance is discharged fume unobstructed, improves kitchen air quality.

Description

Ultraviolet ray oil net petticoat pipe

Technical Field

The utility model belongs to the technical field of the kitchen equipment technique and specifically relates to an ultraviolet ray oil net petticoat pipe.

Background

The petticoat pipe belongs to the necessary fume extractor in the kitchen, and it is main to be favorable to discharging indoor oil smoke, in order to reduce the pollution of oil smoke to follow-up exhaust equipment and pipeline, the petticoat pipe on the current market adopts the ultraviolet mode to decompose the oil smoke molecule to alleviate the pollution to exhaust equipment and pipeline. The oil screen is characterized in that a UV lamp structure is arranged above an oil screen main body, and the oil smoke passing through the oil screen is decomposed by ultraviolet rays generated by the UV lamp; and the ultraviolet rays react with oxygen in the air to generate ozone, and the grease molecules are decomposed into water and carbon dioxide under the strong oxidation action of the ozone, so that the aim of efficiently purifying the oil smoke is fulfilled.

Dirt adhered to the oil filter screen needs to be cleaned after long-term use, and the operation is troublesome if the oil filter screen is detached for cleaning each time; and current ultraviolet ray petticoat pipe is poor at the exhaust effect under the condition that the convulsions volume is low, causes the kitchen to have great oil smoke, influences the air quality in kitchen, and the comfort of cook in the work of back kitchen also greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: in order to overcome the defects of the prior art, the ultraviolet oil net smoke hood is simple in structure, can realize automatic cleaning of an inner cavity assembly of the smoke hood, can better ensure smoke exhaust and improve the air quality of a kitchen under the condition of low air suction volume.

The utility model adopts the technical proposal that: the ultraviolet oil net smoke hood comprises a shell arranged above a cooking bench, wherein an air suction cavity is arranged in the shell, an air suction pipe is connected to the air suction cavity, a smoke collection cavity protruding upwards is arranged at the lower end of the shell, a UV oil net is arranged on the side wall of one end, close to the cooking bench, of the smoke collection cavity, a UV lamp assembly is detachably and obliquely arranged above the UV oil net in the air suction cavity, a first cleaning assembly used for cleaning the UV lamp assembly and a second cleaning assembly used for cleaning the UV oil net are further arranged in the air suction cavity, a water baffle is arranged at the lower end, located at the second cleaning assembly, of the shell, and an adsorption channel used for oil smoke to enter is reserved between the upper end of the water baffle and the shell; a drainage channel is arranged at the lower end of one side of the shell close to the cooking bench; the other end of the shell is provided with a first air outlet cavity, an air curtain fan is arranged in the first air outlet cavity, and an air inlet of the air curtain fan is communicated with the outside; a plurality of air curtain air outlets blowing towards the center of the smoke collection cavity are formed in the inner side wall of the lower end of the shell along the circumferential direction, and the air curtain air outlets are communicated with the first air outlet cavity; the position that corresponds with UV banks spare on the collection smoke chamber lateral wall still is equipped with the access window, the removable apron that is equipped with in outside of access window, just apron and collection smoke chamber lateral wall parallel and level.

Compared with the prior art, the utility model has the following advantage:

in the smoke hood structure of the utility model, the first cleaning component for self-cleaning the UV lamp component and the second cleaning component for self-cleaning the UV oil net are respectively arranged in the air draft cavity, so that the self-cleaning of two important oil removing components is realized, the two components do not need to be disassembled for cleaning, the disassembling and assembling procedures are saved, and the cleaning is more convenient; in addition, a corresponding water baffle is arranged below the second cleaning component and used for preventing the cleaning water from directly leaking out, and a drainage channel for draining the cleaning water is arranged at the lower end of the shell in the integral structure; the water baffle in the structure can also play a certain function of blocking ultraviolet rays except for the function of blocking cleaning water, and because partial ultraviolet rays in meshes of the UV oil net can penetrate out, human bodies can be in contact with ultraviolet rays for a long time to cause certain influence, so that the problem is effectively solved after the water baffle structure is added.

In another aspect, the maintenance window and the cover plate are additionally arranged at the position, corresponding to the UV lamp assembly, of the side wall of the smoke collection cavity in the structure, when the UV lamp assembly is required to be maintained, the cover plate only needs to be detached, the UV lamp assembly can be maintained through the maintenance window, other parts do not need to be detached, and the operation is convenient.

On the other hand, the utility model discloses in still increased the air curtain structure and carried out the shutoff to the oil smoke, assurance oil smoke that can be better gets into can not scatter at will behind the collection smoke chamber region, and the oil smoke passes through UV oil net and filters, and UV banks spare decomposes the back and is taken out by the exhaust column, improves smoke exhaust efficiency.

As an improvement, a second air outlet cavity is further arranged at one end of the shell, which is far away from the air suction cavity, a fresh air conveying pipe with an air adjusting valve is arranged at the upper end of the second air outlet cavity, and fresh air outlet channels are arranged on the upper end surface and the lower end surface of the outer side wall of one end of the shell, which is far away from the cooking bench; and an air inlet of the air curtain fan is communicated with the second air outlet cavity. The fresh air conveying system is added in the improved structure, so that fresh air is continuously conveyed to the peripheral area of the cooking bench in the kitchen, and the working comfort level is improved.

In another improvement, the first cleaning assembly comprises a first water inlet pipe and a plurality of first nozzles, one end of the first water inlet pipe is connected with an external water pump, and the other end of the first water inlet pipe extends to the lower part of the UV lamp assembly towards the inner cavity of the shell; the first nozzle is connected to the side wall of the first water inlet pipe and communicated with the first water inlet pipe, and a water outlet of the first nozzle extends towards the position of a lamp tube at the lower end of the UV lamp assembly.

In another improvement, the second cleaning component comprises a second water inlet pipe and a second nozzle, one end of the second water inlet pipe is connected with an external water pump, and the other end of the second water inlet pipe extends to the lower part of the UV oil net towards the inner cavity of the shell; the second nozzle is connected on the lateral wall of the second water inlet pipe and communicated with the second water inlet pipe, and the water outlet of the second nozzle extends towards the outer lateral wall of the UV oil net.

And the other end of the hard pipe is connected with a flexible hose, and a driving mechanism for driving the hard pipe to move in a telescopic manner towards the lower part of the UV oil net is arranged on the side wall of the air pumping cavity. In the improved structure, the hard pipe is driven to move by the driving structure, so that the expansion of the washing range of the second nozzle is realized, the washing area of the UV oil net is increased, and the washing efficiency is improved; and need not set up too many nozzles in this kind of structure, reduced the nozzle structure to the area that shelters from of UV oil net, guarantee the filter effect of UV oil net.

And the smoke collection cavity is improved, an overhaul window is arranged at the position, corresponding to the UV lamp assembly, on the side wall of the smoke collection cavity, and a cover plate is detachably arranged outside the overhaul window. The maintenance of the UV lamp assembly is more convenient after the maintenance window is arranged in the improved structure, and the cover plate is directly opened.

The improved structure is characterized in that one side of the smoke collection cavity close to the cooking bench is recessed towards the UV lamp assembly to form a containing groove, and a through hole communicated with the inner cavity of the shell is formed in the bottom of the containing groove to form the maintenance window; the cover plate is assembled in the accommodating groove.

In a further improvement, the lower end of the accommodating groove is provided with a limiting groove, and the lower end of the cover plate is provided with a limiting bulge matched with the limiting groove; the upper end of the cover plate is connected in the accommodating groove through a fastening screw. When the installation apron in this structure, advance the lower extreme with the apron through spacing arch fix a position, then fix through fastening screw in the apron upper end, can aim at the connecting hole when guaranteeing the apron connection to guarantee the parallel and level of apron and collection smoke chamber lateral wall after connecting, improve the pleasing to the eye degree of appearance.

Drawings

Fig. 1 is a side view of an oil mesh smoke hood of the present invention.

Fig. 2 is a partial schematic view of the internal structure of the ventilation chamber in the present invention.

Fig. 3 is an enlarged structural view at X in fig. 1.

Fig. 4 is a partial view of the portion a in fig. 1.

Fig. 5 is a schematic view of a driving structure in the present invention.

Wherein, 100-hearth; 01-a first cleaning component, 02-a second cleaning component;

1-shell, 2-smoke collecting cavity, 3-UV oil net, 4-UV lamp assembly, 5-maintenance window, 6-cover plate, 6.1-limit protrusion, 7-water baffle, 8-adsorption channel, 9-drainage channel, 10-first water inlet pipe, 11-first nozzle, 12-second water inlet pipe, 12.1-hard pipe, 12.2-flexible hose, 13-second nozzle, 14-containing groove, 14.1-limit groove, 15-fastening screw, 16-air pumping cavity, 17-air pumping pipe, 18-lighting assembly, 19-installation block, 20-screw rod, 21-driving motor, 22-screw rod nut, 23-connecting plate, 24-first air outlet cavity, 25-air curtain fan, 26-air curtain, 27-a second air outlet cavity, 28-a fresh air delivery pipe and 29-a fresh air outlet channel.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

In the description of the present invention, it should be noted that the terms "upper portion", "lower end", "inner side wall", "left and right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, the terms "first" and "second" are used for convenience of description and distinction, and have no specific meaning.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As shown in fig. 1 and 2, the utility model provides a pair of oil net petticoat pipe with self-cleaning function, including installing the casing 1 in top of the top of a kitchen range 100, this casing 1 mainly is a cover body structure, the one end that is close to top of a kitchen range 100 in the casing 1 is equipped with exhaust chamber 16, the lower extreme of casing 1 is equipped with up bellied collection smoke chamber 2, collection smoke chamber 2 and exhaust chamber 16 communicate each other in this structure, and one side that is close to top of a kitchen range 100 in the top left side of casing 1 is provided with the exhaust column 17 with exhaust chamber 16 intercommunication, thereby when the petticoat pipe uses, make the oil smoke at first enter into the collection smoke chamber 2 of casing 1 under exhaust column 17's effect, then enter into exhaust chamber 16 again, finally discharge from exhaust column 17. The whole embedded type lighting assembly 18 is arranged on the inner wall of the top of the smoke collecting cavity 2, so that the lighting assembly 18 can be opened to light as required when people cook dishes conveniently, and the cooking device is more convenient for people to use.

In addition, a UV lamp assembly 4 is detachably arranged in the air exhaust cavity 16, a UV oil net 3 is arranged on the side wall of one end of the smoke collection cavity 2 close to the cooking bench 100, the smoke collection cavity 2 is communicated with the air exhaust cavity 16 through the UV oil net 3, and the UV lamp assembly 4 is positioned above the UV oil net 3. Specifically, the UV oil net 3 is obliquely arranged and is positioned between the smoke collection cavity 2 and the air suction cavity 16, and the UV lamp assembly 4 irradiates towards the UV oil net 3; therefore, in the oil smoke discharging process, oil smoke is firstly filtered through the UV oil net 3 and then enters the air suction cavity 16, oil smoke molecules are subsequently decomposed in the air suction cavity 16 under the action of ultraviolet rays of the UV lamp assembly 4, ozone is generated after the ultraviolet rays react with oxygen in the air, and the oil smoke molecules are decomposed into water and carbon dioxide under the strong oxidation effect of the ozone, so that the purpose of efficient oil smoke purification is achieved.

Furthermore, in the structure, a first air outlet cavity 24 is arranged at the other end, far away from the cooking bench 100, in the shell 1, an air curtain fan 25 is arranged in the first air outlet cavity 24, and an air inlet of the air curtain fan 25 is communicated with the outside; be equipped with a plurality of air curtain air outlets 26 towards 2 centers of collection smoke chamber bloies along circumference on the 1 lower extreme inside wall of casing, air curtain air outlet 26 and first air outlet chamber 24 intercommunication, air curtain fan 25 work makes air curtain air outlet 26 air-out, in this structure, the air curtain air outlet 26 of round makes the oil smoke shutoff in collection smoke chamber 2 on the 1 lower extreme inside wall of casing, be difficult to arrange outward, can be concentrated more inhale through UV oil net 3, through the ultraviolet decomposition release of UV banks spare 4, guarantee the efficiency of getting rid of the oil smoke. The structure can ensure that the oil smoke is not scattered outwards when the air draft of the smoke hood is low, ensure the air quality of a kitchen and improve the comfort level of kitchen workers.

On the other hand, a second air outlet cavity 27 is further arranged at one end of the casing 1 far away from the air suction cavity 16, a fresh air conveying pipe 28 with an air regulating valve is arranged at the upper end of the second air outlet cavity 27, the fresh air conveying pipe 28 is communicated with the external atmosphere end, fresh air is conveyed towards the second air outlet cavity 27 through a corresponding air supply mechanism, and fresh air outlet channels 29 are respectively arranged on the upper end face and the lower end face of the outer side wall of one end of the casing 1 far away from the cooking bench 100; the air inlet of the air curtain fan 25 is communicated with the second air outlet cavity 27. Fresh air is continuously conveyed to the kitchen, so that the control quality of the kitchen is further improved, and the comfort level of the working environment is improved.

To eliminate the need for disassembly of the UV lamp assembly 4 and UV oil screen 3 during cleaning, a corresponding self-cleaning mechanism is provided within the exhaust plenum 16, as shown in FIGS. 1 and 2. Specifically, a first cleaning assembly 01 for cleaning the UV lamp assembly 4 and a second cleaning assembly 02 for cleaning the UV oil net 3 are arranged in the air draft cavity 16, a water baffle 7 is arranged at the lower end of the second cleaning assembly 02 on the shell 1, and an adsorption channel 8 for oil smoke to enter is reserved between the upper end of the water baffle 7 and the shell 1; the lower extreme of casing 1 nearly top of a kitchen range one side is equipped with drainage channel 9, and the leakproofness has all been done to components and parts structures such as circular telegram in the above-mentioned structure of course to guarantee can not influence subsequent use when wasing.

As shown in fig. 2, more specifically, the first cleaning assembly 01 includes a first water inlet pipe 10 and a plurality of first nozzles 11, one end of the first water inlet pipe 10 is connected with an external water pump, and the other end extends to the lower part of the UV lamp assembly 4 towards the inner cavity of the housing; the first nozzle 11 is connected to a sidewall of the first inlet pipe 10 and communicates with the first inlet pipe 10, and an outlet of the first nozzle 11 extends toward a lamp position at a lower end of the UV lamp assembly 4.

Similarly, the second cleaning assembly 02 comprises a second water inlet pipe 12 and a second nozzle 13, one end of the second water inlet pipe 12 is connected with an external water pump, and the other end extends to the lower part of the UV oil net 3 towards the inner cavity of the shell; the second nozzle 13 is connected to the side wall of the second water inlet pipe 12 and communicated with the second water inlet pipe 12, and the water outlet of the second nozzle 13 extends towards the outer side wall of the UV oil net 3. In the structure, preferably, one end of the second water inlet pipe 12 close to the UV oil net 3 is a hard pipe 12.1, the second nozzle 13 is arranged on the side wall of the hard pipe 12.1, the other end of the hard pipe 12.1 is connected with a flexible hose 12.2, and a driving mechanism for driving the hard pipe 12.1 to move in a telescopic manner towards the lower part of the UV oil net 3 is arranged on the side wall of the air draft cavity 16.

As shown in fig. 5, the driving structure in this structure includes: the two installation blocks 19 are installed on the side wall of the air draft cavity 16, a lead screw 20 is rotatably connected between the two installation blocks 19, a driving motor 21 is arranged on any one of the installation blocks 19, and an output shaft of the driving motor 21 is axially connected with the lead screw 20, namely the lead screw 20 is driven to rotate by the driving motor 21. The screw nut 22 is sleeved and matched outside the screw 20, one end of the hard tube 12.1 is connected and positioned on the screw nut 22, and the length of the flexible hose 12.2 in the structure is long enough to ensure that the hard tube 12.1 can reciprocate along with the screw nut 22, so that the second nozzle 13 can run along the up-and-down direction of the UV oil net 3. Thereby realizing that the second nozzle 13 is driven to move up and down in a telescopic way through the screw pair structure; and in this structure, be equipped with a plurality of second along the length direction about UV oil net 3 and wash subassembly 02, guarantee the effective washing of UV oil net. Specifically, the hard tubes 12.1 in the second cleaning assemblies 02 can be driven by a screw nut 22, a long positioning plate is mounted on the screw nut 22, and the hard tubes 12.1 are arranged and fixed on the positioning plate.

On the other hand, as shown in fig. 3, the structure is provided with an access window 5 at a position corresponding to the UV lamp assembly 4 on the side wall of the smoke collecting cavity 2, a cover plate 6 is detachably arranged outside the access window 5, and the cover plate 6 is flush with the side wall of the smoke collecting cavity 2, so that the appearance is beautiful. After this structural configuration, when subsequent UV banks spare 4 breaks down and need overhaul, need not dismantle a large amount of spare parts, directly will pull down apron 6, expose maintenance window 5 and can realize overhauing UV banks spare 4 from maintenance window 5, overhaul convenient, high-efficient.

Specifically, a containing groove 14 is formed in the side wall of the smoke collection 2 close to the cooking bench 100 and is recessed towards the UV lamp assembly 4, a through hole communicated with the air draft cavity 16 is formed in the bottom of the containing groove 14, and the through hole forms the maintenance window 5; and the cover plate 6 is detachably fitted in the accommodation groove 14. The lower end of the accommodating groove 14 is provided with a limiting groove 14.1, and the lower end of the cover plate 6 is provided with a limiting bulge 6.1 matched with the limiting groove 14.1; the upper end of the cover plate 6 is connected in the accommodating groove 14 through a fastening screw 15. When the installation apron, fix a position the lower extreme of apron 6 through spacing arch 6.1 in advance, then fix through fastening screw 15 in 6 upper ends of apron, can aim at the connecting hole when guaranteeing to lap 6 to guarantee to lap the parallel and level of 6 and 2 lateral walls in collection smoke chamber after connecting, improve the pleasing to the eye degree of appearance.

As shown in FIG. 1, two connecting plates 23 are arranged in the inner cavity of the shell along the length direction of the UV lamp assembly 4, and two ends of the UV lamp assembly 4 are respectively detachably connected to the corresponding connecting plates 23. In this structure, the UV lamp assembly 4 is integrally connected to the connection plate 23, and the power supply part is usually connected to the connector, so that the whole UV lamp assembly 4 can be taken out from the access window 5 after the power supply connector is disconnected during maintenance, and the UV lamp assembly 4 can be taken out and maintained more conveniently.

While the above is directed to the preferred embodiment of the present invention, it is not intended that it be limited, except as by the appended claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for changes, all the changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides an ultraviolet ray oil net petticoat pipe, is including installing casing (1) in the top of a kitchen range (100), casing (1) nearly top of a kitchen range (100) one end is equipped with air suction chamber (16), be connected with exhaust column (17) on air suction chamber (16), the lower extreme of casing (1) is equipped with up bellied collection smoke chamber (2), be equipped with UV oil net (3) on the lateral wall of the one end of collection smoke chamber (2) nearly top of a kitchen range (100), just be located the removable oblique UV banks spare (4) that are equipped with in top of UV oil net (3) in air suction chamber (16), its characterized in that: a first cleaning assembly (01) for cleaning the UV lamp assembly (4) and a second cleaning assembly (02) for cleaning the UV oil screen (3) are further arranged in the air draft cavity (16), a water baffle (7) is arranged at the lower end of the second cleaning assembly (02) on the shell (1), an adsorption channel (8) for oil smoke to enter is reserved between the upper end of the water baffle (7) and the shell (1), and a drainage channel (9) is arranged at the lower end of one side, close to the cooking bench, of the shell (1); a first air outlet cavity (24) is formed in the other end of the shell (1), an air curtain fan (25) is arranged in the first air outlet cavity (24), and an air inlet of the air curtain fan (25) is communicated with the outside; a plurality of air curtain air outlets (26) blowing towards the center of the smoke collection cavity (2) are formed in the inner side wall of the lower end of the shell (1) along the circumferential direction, and the air curtain air outlets (26) are communicated with the first air outlet cavity (24); the position that corresponds with UV banks spare (4) on collection smoke chamber (2) lateral wall still is equipped with access panel (5), the outside detachable of access panel (5) is equipped with apron (6), just apron (6) and collection smoke chamber (2) lateral wall parallel and level.

2. The ultraviolet oil screened hood as recited in claim 1, wherein: a second air outlet cavity (27) is further formed in one end, far away from the air suction cavity (16), of the shell (1), a fresh air conveying pipe (28) with an air adjusting valve is arranged at the upper end of the second air outlet cavity (27), and fresh air outlet channels (29) are formed in the upper end face and the lower end face of the outer side wall, far away from the cooking bench (100), of the shell (1); and an air inlet of the air curtain fan (25) is communicated with the second air outlet cavity (27).

3. The ultraviolet oil screened hood as set forth in claim 1, wherein: the first cleaning assembly (01) comprises a first water inlet pipe (10) and a plurality of first nozzles (11), one end of the first water inlet pipe (10) is connected with an external water pump, and the other end of the first water inlet pipe extends to the lower part of the UV lamp assembly (4) towards the inner cavity of the shell; the first nozzle (11) is connected to the side wall of the first water inlet pipe (10) and communicated with the first water inlet pipe (10), and the water outlet of the first nozzle (11) extends towards the position of a lamp tube at the lower end of the UV lamp assembly (4).

4. The ultraviolet oil screened hood as set forth in claim 1 or 3, wherein: the second cleaning assembly (02) comprises a second water inlet pipe (12) and a second nozzle (13), one end of the second water inlet pipe (12) is connected with an external water pump, and the other end of the second water inlet pipe extends to the position below the UV oil net (3) towards the inner cavity of the shell; the second nozzle (13) is connected to the side wall of the second water inlet pipe (12) and communicated with the second water inlet pipe (12), and a water outlet of the second nozzle (13) extends towards the outer side wall of the UV oil net (3).

5. The ultraviolet oil screened hood of claim 4 wherein: the one end of the nearly UV oil net (3) of second inlet tube (12) be hard pipe (12.1), just second nozzle (13) are established on hard pipe (12.1) lateral wall, the other end of hard pipe (12.1) is connected with flexible hose (12.2), be equipped with the actuating mechanism who is used for driving hard pipe (12.1) towards the below concertina movement of UV oil net (3) on the exhaust chamber (16) lateral wall.

6. The ultraviolet oil screened hood as set forth in claim 1, wherein: one side of the smoke collection cavity (2) close to the cooking bench (100) is recessed towards the UV lamp assembly (4) to form a containing groove (14), and the bottom of the containing groove (14) is provided with a through hole communicated with the inner cavity of the shell to form the maintenance window (5); the cover plate (6) is assembled in the accommodating groove (14).

7. The ultraviolet oil screened hood of claim 6 wherein: the lower end of the accommodating groove (14) is provided with a limiting groove (14.1), and the lower end of the cover plate (6) is provided with a limiting bulge (6.1) matched with the limiting groove (14.1); the upper end of the cover plate (6) is connected in the accommodating groove (14) through a fastening screw (15).