CN110230831B

CN110230831B - High-efficiency water-washing type oil net smoke hood

Info

Publication number: CN110230831B
Application number: CN201910545708.8A
Authority: CN
Inventors: 崔建芳
Original assignee: Shenzhen Century Cookware Co ltd
Current assignee: Shenzhen Century Cookware Co ltd
Priority date: 2019-06-22
Filing date: 2019-06-22
Publication date: 2020-06-19
Anticipated expiration: 2039-06-22
Also published as: CN110230831A

Abstract

The invention discloses a high-efficiency washing type oil screen smoke hood, which comprises a hood body, wherein a smoke collecting cavity and an air draft cavity which are communicated with each other are arranged in the hood body, an oil filter screen is arranged between the smoke collecting cavity and the air draft cavity, the air draft cavity is connected with an air draft pipe, a washing spray head is arranged in the air draft cavity, the middle part of the oil filter screen is rotatably connected on the inner wall of the hood body, one side of the bottom of the smoke collecting cavity is provided with a water baffle plate which is positioned below the oil filter screen, one end of the water baffle plate is hinged on the, after one side of the oil filter screen is washed by the water washing spray head, the oil filter screen can be turned to the other side for washing, so that the oil filter screen can be more comprehensively washed, the washing effect is better, wherein the water baffle can play a role in retaining water, one side of the water baffle is hinged, when the oil filter screen needs to be turned over, the water baffle can be turned over downwards and then operated, so that the oil filter screen can be turned over conveniently, and the influence on the rotation of the oil filter screen due to the existence of the water baffle can be avoided.

Description

High-efficiency water-washing type oil net smoke hood

Technical Field

The invention relates to the field of smoke hoods, in particular to a high-efficiency water-washing type oil net smoke hood.

Background

The smoke hood belongs to a necessary smoke exhaust device in a kitchen, is mainly beneficial to discharging indoor oil smoke, and is mainly used for filtering oil liquid through an oil filter screen inside the smoke hood in order to reduce pollution of the oil smoke to subsequent exhaust equipment and pipelines, 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 every time; the water washing type smoke hood is arranged on the market at present, a water washing spray head is arranged above the corresponding oil filter screen inside the smoke hood, the smoke hood is connected with a water inlet pipe and a water outlet pipe, the oil filter screen is washed by spraying water through the water washing spray head, water used for washing is discharged through the water outlet pipe, the purpose of conveniently washing the oil filter screen is achieved, however, the surface of the oil filter screen, facing the water washing spray head, at the top of the oil filter screen can be well washed, the bottom of the oil filter screen cannot be well washed, and further the situation that the oil filter screen is not thoroughly washed exists.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the high-efficiency water-washing type oil screen smoke hood which has the advantage of comprehensively cleaning an oil screen.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a high-efficient washing formula oil net petticoat pipe, includes the cover body, the internal collection smoke chamber and the convulsions chamber that communicate each other that are provided with of cover, be provided with the oil cleaner screen between collection smoke chamber and the convulsions chamber, be connected with the exhaust column on the convulsions chamber, the convulsions intracavity is provided with the washing shower nozzle, the oil cleaner screen middle part is rotated and is connected on cover body inner wall, bottom one side of collection smoke chamber is provided with the breakwater that is located the oil cleaner screen below, breakwater one end articulates on the cover body, and the other end can be dismantled with the cover body.

The oil filter screen is rotatably connected in the smoke hood, and the oil filter screen can be turned to the other side for washing after one side of the oil filter screen is washed by the washing nozzle, so that the oil filter screen can be more comprehensively washed, the washing effect is better, the water baffle plate can play a role in water baffling, and the situation that the washed water is directly sprayed out from the lower part of the smoke hood is avoided; and articulated breakwater one side, when the oil cleaner screen needs to overturn, can turn over the breakwater down earlier and operate again, be convenient for like this on the one hand to the upset operation of oil cleaner screen, on the other hand also avoids influencing the rotation of oil cleaner screen because of the existence of breakwater.

The invention further provides that: the cover body corresponds the breakwater and keeps away from articulated one end and is provided with the installation department, be provided with on the installation department and accept the strip, it rotates to connect on the installation department to accept a one end, the breakwater is kept away from articulated one end and is located the installation department and accept between the strip.

The water baffle is pressed on the installation part from the bottom by the bearing strip, so that the situation that the water baffle turns downwards is avoided, and when the water baffle needs to be turned downwards, the bearing strip only needs to be rotated to the other side to enable the bearing strip not to press the water baffle any more, and the water baffle pressing device is simple in structure and convenient to operate.

The invention further provides that: accept and be fixed with on the strip and pass the installation department and rather than rotate the pivot of being connected, the one end that accepts the strip is kept away from in the pivot is fixed with spacing, oil cleaner screen one side is seted up and is supplied spacing to rotate the draw-in groove that the card is gone into, the protruding ejector pad that is equipped with the oil cleaner screen butt in breakwater one side.

Firstly, the oil filter screen can be rotationally limited by means of the limiting strips, so that the oil filter screen can be stably in the current state in the working or cleaning process of the smoke hood and keep good stability, when the bearing strips are rotated to untie one side of the water baffle, the limiting strips synchronously rotate along with the bearing strips to be separated from the clamping grooves to release clamping of the oil filter screen, and the oil filter screen can be directly turned and rotated subsequently, so that the operation is more convenient; the oil filter screen can be pushed to turn over to the position where the clamping groove corresponds to the limiting strip by the aid of the pushing block when the water baffle is turned over, and accordingly the subsequent limiting strip can be accurately clamped into the clamping groove.

The invention further provides that: and one end of the bearing strip, which is far away from the rotary connection, is in threaded connection with a holding screw, and the end part of the holding screw is abutted against the water baffle.

Further through the setting of supporting tight screw, support tightly on the breakwater with the help of supporting tight screw tip to can play limiting displacement to the rotation of accepting the strip, avoid accepting strip self to appear rotating and lead to the breakwater to turn over the safety problem that exists under the accident, make the installation steadiness and the security of breakwater better.

The invention further provides that: the water baffle and the oil filter screen are both obliquely arranged, an extending part for hinging the water baffle extends on the cover body, and a drain pipe is arranged on the extending part.

The water baffle is obliquely arranged to play a better role in retaining water and draining, and sprayed water can be obliquely flowed down to the drain pipe to be drained along the water baffle after being blocked by the water baffle, so that water can be better led to the drain pipe to be drained timely.

The invention further provides that: the water discharge pipe is extended with a branch pipe, and the end part of the branch pipe is provided with a water receiving part positioned below the water baffle.

Through the setting of water receiving portion and branch pipe, can be accepted well by water receiving portion and lead to the drain pipe and discharge when meetting partial moisture and leak down from the articulated department of breakwater, avoid the petticoat pipe to appear the condition of leaking when wasing the oil cleaner screen.

The invention further provides that: the shrinkage pool has been seted up to the both sides of oil cleaner screen, wear to be equipped with the axis body of pegging graft with the shrinkage pool on the cover body, the axis body is connected on the cover body along axial sliding, the tip of axis body is provided with handheld portion, be provided with between handheld portion and the cover body outer wall and order about the axis body and keep the elastic component of pegging graft with the shrinkage pool.

The rotation that realizes the oil cleaner screen with the help of the cooperation of axis body and shrinkage pool is connected, and the oil cleaner screen can be dismantled in addition, will hold the portion to take out outward during the dismantlement make the axis body deviate from the shrinkage pool can, dismantle easy operation is convenient, make grafting that the axis body can be stable realize rotating in the shrinkage pool under the pulling of elastic component at ordinary times and connect to can dismantle the oil cleaner screen according to actual need and get off and change.

The invention further provides that: the utility model discloses a ventilation device, including convulsions intracavity, the convulsions intracavity is provided with the UV lamp, the oil cleaner screen includes the body, be provided with the oil strain passageway on the body and form into smoke inlet and outlet, the UV lamp is located one side of smoke outlet towards the cavity of convulsions, oil strain passageway inner wall extends has the baffle towards the slope of smoke outlet direction.

Oil smoke molecules are decomposed through the photolysis effect of the UV lamp, ozone is generated after ultraviolet rays react with oxygen in the air, the oil molecules are decomposed into water and carbon dioxide through the strong oxidation effect of the ozone, the efficient oil smoke purification purpose is achieved, the large granular substances in the oil smoke can be effectively intercepted through the oil filter screen with the structure, the oil filter channel is formed through the inclined partition plate inside, on one hand, the oil smoke filtering effect is better, on the other hand, ultraviolet rays irradiated by the UV lamp can be well blocked by the partition plate, and the ultraviolet rays are prevented from irradiating the outside of the smoke hood to influence the body health of people.

The invention further provides that: the surface of the partition board and the surface of the body facing one side of the UV lamp are both provided with a black steel layer.

The setting through the black steel layer can reduce the condition that the ultraviolet ray reflection appears, can be well absorbed when the in-process ultraviolet ray that specifically uses shines the black steel layer to avoid the ultraviolet ray to have the condition that the part shines out from the petticoat pipe because the reflection, it is better to the effect that blocks of ultraviolet ray.

The invention further provides that: and one sides of the smoke outlet and the smoke inlet are provided with folded plates which are bent towards the direction of the partition plate.

The further setting of folded plate makes the opening width of advancing cigarette mouth and outlet flue further reduce on the one hand, and on the other hand also can play the purpose that blocks ultraviolet ray, avoids the ultraviolet ray to have the baffle to carry out the condition that well blockked it when inclination is less, plays the supplementary effect that blocks ultraviolet ray to the oil cleaner screen is more thorough and comprehensive to ultraviolet blocking.

In conclusion, the invention has the following beneficial effects:

1. the middle part of the oil filter screen is rotatably connected to the cover body, and after the surface of one side of the oil filter screen is cleaned, the oil filter screen can be rotated to the other side for cleaning, so that the oil filter screen can be cleaned more comprehensively and thoroughly, and the cleaning effect is better;

2. the water baffle is arranged to play a role in retaining water and can drain water to a drain pipe to be discharged in time, the water baffle is hinged to be turned downwards, the rotation operation of the oil filter screen is facilitated, the limit release of the oil filter screen is synchronously realized while the fixation of one end of the water baffle is unfastened, and the whole operation is more convenient and more convenient;

3. the structure of the oil filter screen is changed, so that the oil filter screen can filter large-particle substances in the oil smoke, and the oil filter screen has the function of shielding ultraviolet rays, so that the influence of the ultraviolet rays irradiating the smoke hood to the health of people is avoided;

4. the setting through the black steel layer can absorb the ultraviolet ray, avoids the ultraviolet ray because take place the reflection and the condition that the part shines from the petticoat pipe appears.

Drawings

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is a connecting structure diagram of a smoke hood and an oil filter screen in the embodiment 1;

FIG. 3 is a structural view of an oil screen in example 1;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a structural view of an oil screen in example 2;

fig. 6 is an enlarged view of B in fig. 5.

Reference numerals: 1. a cover body; 2. a smoke collection cavity; 3. an air draft cavity; 4. an oil filter screen; 41. a body; 42. a smoke inlet; 43. a smoke outlet; 44. an oil filter channel; 45. a partition plate; 46. folding the plate; 47. a black steel layer; 5. an illuminating lamp; 6. a UV lamp; 7. an exhaust pipe; 8. washing the spray head with water; 9. an extension portion; 10. a water baffle; 11. a smoke evacuation channel; 12. an installation part; 13. a rotating shaft; 14. carrying out strip bearing; 15. tightly abutting the screw; 16. a limiting strip; 17. a card slot; 18. a drain pipe; 19. pipe distribution; 20. a water receiving part; 21. a push block; 22. a blocking portion; 23. concave holes; 24. a shaft body; 25. a hand-held portion; 26. a tension spring; 27. an opening; 28. and a baffle plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1: a high-efficiency washing type oil screen smoke hood, as shown in figure 1, comprises a hood body 1, a smoke collecting cavity 2 and an air draft cavity 3 which are mutually communicated are respectively arranged in the hood body 1, a lighting lamp 5 is arranged at the top of the smoke collecting cavity 2, the air draft cavity 3 is positioned at the left side of the smoke collecting cavity 2, the top of the air draft cavity is provided with an air draft pipe 7 which penetrates out of the hood body 1, an oil filter screen 4 is arranged between the smoke collecting cavity 2 and the air draft cavity 3, and a UV lamp 6 which irradiates towards the direction of the oil filter screen 4 is arranged in the air draft cavity 3; therefore, the oil smoke is firstly concentrated in the smoke collection cavity 2, under the air draft effect of the air draft pipe 7, the oil smoke enters the air draft cavity 3 from the smoke collection cavity 2, large particle substances in the oil smoke are filtered through the oil filter screen 4 in the period, the oil smoke is decomposed through the photolysis effect of the UV lamp 6 in the air draft cavity 3, the ultraviolet rays react with oxygen in the air to generate ozone, the oil smoke is decomposed into water and carbon dioxide through the strong oxidation effect of the ozone, the efficient oil smoke purification purpose is achieved, and finally the oil smoke is discharged from the air draft pipe 7.

Because the oil filter screen 4 is adhered with more dirt after long-term use, the oil filter screen 4 needs to be cleaned regularly, so as to facilitate the water washing of the oil filter screen 4, a plurality of washing nozzles 8 which spray water towards the oil filter screen 4 are arranged in the air draft cavity 3, an extension part 9 extends from the bottom of the cover body 1, a water baffle 10 is hinged on the extension part 9, the water baffle 10 is obliquely arranged upwards and is parallel to the oil filter screen 4, a smoke exhaust channel 11 is formed between the water baffle 10 and the oil filter screen 4, in addition, an installation part 12 extends towards the direction of the water baffle 10 at the top of the inner wall of the smoke collection cavity 2, a rotating shaft 13 penetrates through the mounting part 12, the bottom end of the rotating shaft 13 penetrates through the mounting part 12 and is fixedly provided with a bearing strip 14, the bearing strip 14 side is rotatably connected to the mounting part 12 through the rotating shaft 13, and one end of the inclined water baffle 10 can be supported by the bearing strip 14, so that the water baffle 10 is prevented from turning over; meanwhile, in order to improve the stability of the bearing strip 14, a resisting screw 15 is in threaded connection with one side of the bearing strip 14, which is far away from the rotating shaft 13, and the end part of the resisting screw 15 is tightly resisted on the water baffle 10, so that the friction resistance is improved, and the bearing strip 14 is not easy to accidentally rotate; the obliquely arranged water baffle 10 plays a role in water retaining and drainage, and the extension part 9 is provided with a drainage pipe 18 which faces downwards vertically, so that the water baffle 10 can be drained to the drainage pipe 18 in time; in order to avoid the situation that the water leaks out of the cover body 1 from the hinged position of the water baffle 10, a branch pipe 19 communicated with the water outlet pipe is horizontally extended on the water outlet pipe, the end part of the branch pipe 19 is bent upwards and is provided with a funnel-shaped water receiving part 20, and the water receiving part 20 is positioned below the hinged position of the water baffle 10 and can converge the leaked water to the water outlet pipe 18.

Wherein the middle part of the oil filter screen 4 is rotatably connected on the inner wall of the cover body 1, the top end of the rotating shaft 13 penetrates through the top end of the mounting part 12 and is fixed with a limit strip 16, the limit strip 16 is also rotatably connected on the mounting part 12 by virtue of the rotating shaft 13, and the two sides of the oil filter screen 4 are provided with clamping grooves 17 for the limit strip 16 to be rotatably clamped in, so that the oil filter screen 4 can keep stability during normal work or cleaning, the shaking and overturning condition is avoided, and when the top surface of the oil filter screen 4 is required to be overturned after being cleaned, the bearing strip 14 is rotated to not bear the water baffle 10, and the limit strip 16 is separated from the clamping groove 17, at the moment, the water baffle 10 can be overturned downwards and simultaneously loosens the fixation of the oil filter screen 4, the whole operation is more convenient, the oil filter screen 4 is overturned for 180 degrees later, the original bottom surface of the oil filter screen 4 is upwards, the water baffle 10 is overturned to, therefore, in the process of turning up the water baffle 10, the oil filter screen 4 can be simultaneously pushed to turn over to the position, corresponding to the clamping groove 17 and the limiting strip 16, of the clamping groove 17 by the aid of the pushing block 21, and when the bearing strip 14 is rotated subsequently, the limiting strip 16 can be accurately clamped into the clamping groove 17 to fix the oil filter screen 4; in addition, in order to make the oil smoke pass through the smoke exhaust channel 11 and pass through the oil filter screen 4 as much as possible, a blocking part 22 close to the end part of the oil filter screen 4 extends on the installation part 12 and the inner wall of the cover body 1, and the widths of the parts of the push block 21 and the installation part 12, which are abutted against the water baffle 10, are smaller, so that the normal use of the smoke exhaust channel 11 is not blocked.

As shown in fig. 2, concave holes 23 are formed in two sides of a side wall of the oil filter screen 4, a shaft body 24 in plug fit with the concave holes 23 is arranged on the cover body 1 in a penetrating manner, the shaft body 24 is axially connected in a sliding manner along the cover body 1, an end part of the shaft body 24 penetrates through the cover body 1, a handheld part 25 is fixed at one end of the shaft body 24 penetrating through the cover body 1, an elastic part is arranged between the handheld part 25 and the cover body 1, the elastic part is a tension spring 26, one end of the tension spring 26 is fixed with the handheld part 25, the other end of the tension spring is fixed with the outer wall of the cover body 1, and the tension; can realize dismantling of oil cleaner screen 4 when realizing oil cleaner screen 4 and rotate to connect like this, only need during the dismantlement with handheld portion 25 draw outward make the axis body 24 tip deviate from shrinkage pool 23 can, easy operation is convenient, the follow-up change operation to oil cleaner screen 4 of being convenient for.

As shown in fig. 3 and 4, the oil filter screen 4 includes a body 41, a plurality of oil filter passages 44 are arranged on the body 41 at intervals, each oil filter passage 44 includes a lower smoke inlet 42 and an upper smoke outlet 43, wherein the widths of the openings 27 of the smoke inlet 42 and the smoke outlet 43 are both significantly smaller than those of the oil filter passages 44, a partition plate 45 is arranged in the oil filter passages 44 in an inclined manner, the partition plate 45 is arranged in an inclined manner toward the smoke outlet 43, and the smoke inlet 42, the smoke outlet 43 and the partition plate 45 are in the same vertical direction; and then make the oil filter channel 44 form the passageway of buckling, on the one hand can be better the large particulate matter in the filtration oil smoke like this, on the other hand inside ultraviolet ray receives blocking of baffle 45 in order to shine to the petticoat pipe outside through outlet 43, make oil filter 4 itself possess very good light blocking efficiency, in order to further improve the light blocking effect, all be provided with the folded plate 46 of buckling towards baffle 45 direction on one side of inlet 42 and outlet 43, avoid the ultraviolet ray to exist the condition that baffle 45 can't block it well at the less condition of inclination, play the supplementary effect of blocking the ultraviolet ray, make inlet 42 and outlet 43 littleer simultaneously.

As shown in fig. 4, the black steel layer 47 is disposed on the partition plate 45 and on one side surface of the body 41 facing the smoke outlet 43, so that the reflection of ultraviolet rays can be reduced, and the ultraviolet rays can be well absorbed when being irradiated to the black steel layer 47 in the specific use process, thereby avoiding the situation that the ultraviolet rays are partially irradiated from the smoke hood due to reflection, and having a better blocking effect on the ultraviolet rays.

The implementation principle of the embodiment is as follows: when the oil filter screen 4 needs to be cleaned, the water washing spray head 8 is started to spray water onto the oil filter screen 4 to completely clean the upper surface of the oil filter screen, and water is drained from the drain pipe 18 under the blocking and drainage of the water baffle 10; then the water washing spray head 8 is closed, the bearing strip 14 is rotated to enable the bearing strip not to bear the water baffle 10, meanwhile, the limiting strip 16 is separated from the clamping groove 17, the water baffle 10 is turned downwards, then the internal oil filter screen 4 is rotated 180 degrees, the water baffle 10 is turned upwards to restore the original position, the oil filter screen 4 is pushed to be turned over to the position corresponding to the clamping groove 17 and the limiting strip 16 under the action of the pushing block 21, the bearing strip 14 is rotated to the state of bearing the water baffle 10, the limiting strip 16 is clamped into the clamping groove 17 to fix the oil filter screen 4 at the moment, the water washing spray head 8 is opened again to carry out spray washing, and the other side of the oil filter screen 4 is completely washed, so that the oil filter screen 4 is completely washed.

Example 2: a high-efficiency water-washing type oil screen smoke hood, as shown in figures 5 and 6, the difference with embodiment 1 is mainly that the internal structure of an oil screen 4 is different, in this embodiment, an oil filter channel 44 of the oil screen 4 is provided with an opening 27 on a side wall corresponding to one end of a lower part of a partition plate 45, a baffle 28 is arranged at the opening 27, the top end of the baffle 28 is hinged on the inner wall of the oil filter channel 44, and the bottom end of the baffle 28 is abutted on the bottom wall of the opening 27, so when the oil screen 4 is normally used, because the oil screen 4 is arranged obliquely, the baffle 28 has a tendency of inclining towards one side, but the baffle cannot incline under the blocking of the bottom end of the partition plate 45, when the oil screen 4 is cleaned by water spraying, dirt accumulated at the bottom end of the partition plate 45 and moisture can push away the baffle 28 and fall out after reaching a certain degree, thereby effectively improving the cleaning of the dirt inside of the oil screen, the situation that dirt is accumulated at the bottom end of the groove formed between the partition plate 45 and the inner wall of the oil filtering channel 44 and is difficult to clean is avoided.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a high-efficient washing formula oil net petticoat pipe, includes the cover body (1), be provided with collection smoke chamber (2) and convulsions chamber (3) of mutual intercommunication in the cover body (1), be provided with between collection smoke chamber (2) and the convulsions chamber (3) oil cleaner screen (4), be connected with exhaust column (7) on the convulsions chamber (3), be provided with washing shower nozzle (8), characterized by in the convulsions chamber (3): oil cleaner screen (4) middle part is rotated and is connected on the cover body (1) inner wall, the bottom one side of collection smoke chamber (2) is provided with breakwater (10) that are located oil cleaner screen (4) below, breakwater (10) one end articulates on the cover body (1), and the other end can be dismantled with the cover body (1) and be connected, the cover body (1) corresponds breakwater (10) and keeps away from articulated one end and is provided with installation department (12), be provided with on installation department (12) and accept strip (14), accept strip (14) one end and rotate and connect on installation department (12), breakwater (10) are kept away from articulated one end and are located installation department (12) and accept between strip (14).

2. The high efficiency water washing type oil mesh hood according to claim 1, wherein: accept and be fixed with on strip (14) and pass installation department (12) and rotate pivot (13) of being connected rather than, the one end of accepting strip (14) is kept away from in pivot (13) is fixed with spacing (16), draw-in groove (17) that confession spacing (16) rotation card was gone into are seted up to oil screen (4) one side, protruding ejector pad (21) that are equipped with oil screen (4) butt of breakwater (10) one side.

3. The high efficiency water washing type oil mesh hood according to claim 1, wherein: one end, far away from the rotary connection, of the bearing strip (14) is in threaded connection with a tightening screw (15), and the end of the tightening screw (15) abuts against the water baffle (10).

4. The high efficiency water washing type oil mesh hood according to claim 1, wherein: the water baffle (10) and the oil filter screen (4) are obliquely arranged, an extending part (9) for hinging the water baffle (10) extends on the cover body (1), and a drain pipe (18) is arranged on the extending part (9).

5. The high efficiency water washing type oil mesh hood according to claim 4, wherein: a branch pipe (19) extends on the drain pipe (18), and a water receiving part (20) positioned below the water baffle (10) is arranged at the end part of the branch pipe (19).

6. The high efficiency water washing type oil mesh hood according to claim 1, wherein: shrinkage pool (23) have been seted up to the both sides of oil cleaner screen (4), wear to be equipped with axis body (24) of pegging graft with shrinkage pool (23) on the cover body (1), axis body (24) are along axial sliding connection on the cover body (1), the tip of axis body (24) is provided with handheld portion (25), be provided with between handheld portion (25) and the cover body (1) outer wall and order about axis body (24) and keep the elastic component of pegging graft with shrinkage pool (23).

7. The high efficiency water washing type oil mesh hood according to claim 1, wherein: be provided with UV lamp (6) in exhaust chamber (3), oil cleaner screen (4) include body (41), be provided with oil strain passageway (44) on body (41) and form into smoke inlet (42) and outlet (43), UV lamp (6) are located one side of outlet (43) towards exhaust chamber (3), baffle (45) towards outlet (43) direction slope extend to oil strain passageway (44) inner wall.

8. The high efficiency water washing type oil mesh hood of claim 7, wherein: the surfaces of the partition plate (45) and the body (41) facing to one side of the UV lamp (6) are provided with black steel layers (47).

9. The high efficiency water washing type oil mesh hood of claim 7, wherein: and one sides of the smoke outlet (43) and the smoke inlet (42) are provided with folded plates (46) which are bent towards the direction of the partition plate (45).