CN113639288A

CN113639288A - Side-draft range hood

Info

Publication number: CN113639288A
Application number: CN202110983372.0A
Authority: CN
Inventors: 孙建东; 黄仲捌; 吕继洪; 王铁炜; 沈宇鹏; 钱嘉能
Original assignee: Shaoxing Puling Electrical Appliances Co ltd
Current assignee: Shaoxing Puling Electrical Appliances Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2021-11-12
Anticipated expiration: 2041-08-25
Also published as: CN113639288B

Abstract

The application relates to a side-draft range hood, which comprises a shell, wherein a smoke inlet through hole is formed in the shell, a blocking door used for blocking the smoke inlet through hole is connected to the shell in a rotating mode, a driving assembly used for driving the blocking door to rotate is arranged on the shell, an oil net and a cleaning assembly used for cleaning the oil net are arranged in the shell, and the cleaning assembly comprises a cleaning box and an opening and closing piece used for opening or closing the cleaning box; the cleaning box is arranged on the shell. This application has the abluent effect of convenient operating personnel to the oil net.

Description

Side-draft range hood

Technical Field

The application relates to the field of range hoods, in particular to a side-draft range hood.

Background

The range hood is a common electric appliance in a kitchen and is used for absorbing oil smoke in the air.

Publication number CN111828392A discloses an air inlet circle subassembly, fan system and range hood, including the air inlet circle and the device of prewhirling that have the axis, the air inlet circle is annular radial extension portion and axial water conservancy diversion portion including encircling the axis, axial water conservancy diversion portion in radial extension portion radial inboard, along the axis extension, its characterized in that: it revolves the mechanism in advance to include one-level, one-level revolves the mechanism setting in advance at radial extension part first side in the axial, axial water conservancy diversion portion sets up in radial extension part second side relative with first side in the axial, one-level revolves the mechanism in advance and includes that the pressure differential that is pushed the pivoted one-level plectrum by radial extension part both sides in the axial, the axis of rotation and the axis of one-level plectrum are parallel. This application utilizes the all passive form mode to carry out the side deflection to the air current, and control is stable, need not extra energy input.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the oil dirt attached to the oil net needs to be cleaned, an operator needs to detach the oil net from the shell and clean the oil net, and the operator cannot clean the oil net conveniently.

Disclosure of Invention

In order to facilitate cleaning of an oil screen by an operator, the application provides a side-draft range hood.

The application provides a side-draught range hood adopts following technical scheme:

a side-draft range hood comprises a shell, wherein a smoke inlet through hole is formed in the shell, a stop door used for stopping the smoke inlet through hole is rotatably connected to the shell, a driving assembly used for driving the stop door to rotate is arranged on the shell, an oil screen and a cleaning assembly used for cleaning the oil screen are arranged in the shell, and the cleaning assembly comprises a cleaning box and an opening and closing piece used for opening or closing the cleaning box; the cleaning box is arranged on the shell.

By adopting the technical scheme, after the cleaning device is used, the driving assembly drives the blocking door to rotate, after the blocking door is closed, the cleaning box is opened by the opening and closing part, so that cleaning liquid in the cleaning box flows onto the oil screen to clean the oil screen, the oil screen is cleaned immediately after the cleaning device is used, oil attached to the oil screen is easier to clean from the cleaned liquid, the capability of the oil screen for blocking the oil in the smoke is maintained for a longer time, and the oil screen is dried by waste heat in the shell after the cleaning of the oil screen is finished; when the cleaning box is used, the cleaning liquid in the cleaning box and the cleaning box is heated by the heat of the flue gas, and the cleaning effect on the oil net is improved by the heat of the flue gas.

Optionally, the opening and closing element comprises a blocking plate and an electric telescopic rod for driving the blocking plate to slide in the cleaning box; the bottom of the cleaning box is provided with a plurality of guide through holes for guiding the cleaning liquid in the cleaning box to the oil screen; the blocking plate is connected to the inner bottom wall of the cleaning box in a sliding manner; the barrier plate is provided with a plurality of liquid outlet through holes which are communicated with the guide through holes.

Through adopting above-mentioned technical scheme, block the door and close the back, electric telescopic handle drives the barrier plate and removes for play liquid through-hole on the barrier plate is linked together with the direction through-hole, makes the cleaning solution of wasing the incasement flow in to the oil net through going out liquid through-hole and direction through-hole on, washs the oil net, and simple structure makes things convenient for operating personnel to wash the oil net.

Optionally, be provided with in the casing and be used for carrying out the collection subassembly of collecting to the oil on the oil net, the collection subassembly includes the sump oil tank, the sump oil tank is located the oil net below, the sump oil tank can be dismantled and set up in the casing, form the space that the fuel feeding passes through between oil net and the advance cigarette through-hole.

By adopting the technical scheme, when the oil screen is cleaned by the cleaning liquid, the cleaning liquid and the oil enter the oil collecting tank to be collected; when the oil collecting tank is used, the oil collected by the oil collecting tank is blocked by the oil net, so that the operation of operators is facilitated.

Optionally, a driving assembly for driving the oil screen to approach the smoke inlet through hole is arranged in the shell, and the driving assembly comprises two rotating rods and a driving structure for driving the rotating rods to rotate; two dwang one end all rotate connect in on the oil net, two the dwang other end rotate connect in on the inner wall of casing, two the dwang the casing inside wall and the oil net forms parallelogram.

Through adopting above-mentioned technical scheme, after stopping the door and closing, it rotates to drive the structure drive dwang, make the dwang remove along the direction that is close to stopping the door, make the distance between stopping the door and the oil net reduce, wash the clearance liquid of incasement afterwards and flow into to the oil net on, make clearance liquid to the oil net and stop the clearance effect of door increase, stop the door during use and not only lead to clearance liquid, and realize clearing up the terminal surface that the oil net is close to stopping the door, the realization is washd oil net two sides, the clearance effect to the oil net has further been improved.

Optionally, the driving structure comprises an idle wheel, an incomplete gear, a connecting rod and a driven rack; the incomplete gear is arranged on the stop door, the incomplete gear is positioned in the shell, and the circle center of the incomplete gear is concentrically arranged with the hinge joint of the stop door and the shell; the driven rack is connected to the inner wall of the shell in a sliding manner along the direction close to or far away from the oil collecting tank; the idle wheel is rotationally connected to the inner side wall of the shell, is positioned between the driven rack and the incomplete gear, and is meshed with the driven rack and the incomplete gear; one end of the connecting rod is rotatably connected to the driven rack, and the other end of the connecting rod is rotatably connected to the oil net.

Through adopting above-mentioned technical scheme, when stopping the door and closing, stop the door and drive driven rack through incomplete gear and idler and remove, driven rack passes through the connecting rod and drives the dwang rotation, make the oil net remove along the direction that is close to stopping the door, realize driving the drive assembly and stop the door pivoted while realize moving the oil net along the direction that is close to stopping the door, improve the clearance effect of the clearance liquid of wasing the incasement to stopping door and oil net, make things convenient for operating personnel's operation.

Optionally, a flow dividing assembly for dividing oil and cleaning liquid is arranged on the oil collecting tank, and the flow dividing assembly comprises a partition plate and a flow dividing plate; the oil collecting tank is provided with a first flow dividing area and a second flow dividing area; the oil screen is arranged on the oil screen, the splitter plate is rotatably connected to the partition plate and is used for abutting against the oil screen, one end of the splitter plate is used for penetrating into the first splitter area under the action of the oil screen, the other end of the splitter plate is used for penetrating into the second splitter area, and a space for oil supply or cleaning fluid to pass through is formed between the splitter plate and the oil screen.

By adopting the technical scheme, when the driving assembly drives the blocking door to close, the blocking door drives the rotating rod to rotate through the driving structure, the oil net moves along the direction close to the blocking door and the direction close to the oil collecting tank, the oil net is abutted against the flow distribution plate, the oil net drives the flow distribution plate to rotate, so that the flow distribution plate penetrates into the first flow distribution area along one end, then cleaning liquid in the cleaning tank cleans the oil net and the blocking door, and the cleaning liquid enters the first flow distribution area through the guiding of the blocking door and the flow distribution plate; when the driving assembly drives the blocking door to close, the blocking door drives the rotating rod to rotate through the driving structure, the oil net moves in the direction far away from the blocking door and in the direction far away from the oil collecting tank, the flow distribution plate rotates under the driving of the oil net, and the other end of the flow distribution plate penetrates into the second flow distribution area, so that oil blocked by the oil net enters the second flow distribution area through the oil net and the guide of the flow distribution plate; realize driving the flow distribution plate and rotate when drive assembly drives the oil net and removes for the cleaning solution is separately stored with oil, makes things convenient for operating personnel's operation.

Optionally, the reposition of redundant personnel subassembly still includes two adjusting bolt, two equal threaded connection of adjusting bolt in the one end that the oil net is close to the flow distribution plate, adjusting bolt's head be used for with the flow distribution plate is inconsistent, two form the space that fuel feeding or washing liquid passed through between the adjusting bolt.

Through adopting above-mentioned technical scheme, during the use, the adjustment to flow divider inclination is realized to two adjusting bolt of operating personnel accessible rotation, makes things convenient for operating personnel's installation and debugging.

Optionally, the flow distribution assembly further comprises a weight, the weight is arranged on the flow distribution plate, and the weight is located on one side of the separation plate, which is deviated from the oil net.

Through adopting above-mentioned technical scheme, when using, the pouring weight makes the flow distribution plate state inconsistent with the oil net all the time, reduces the condition emergence that the flow distribution plate breaks away from with the oil net on the division board when using.

Optionally, the inner wall of the shell is provided with two first sealing plates, the oil net is located between the two first sealing plates, and the oil net is abutted to the first sealing plates.

Through adopting above-mentioned technical scheme, first closing plate is inconsistent with the oil net during use, and the condition that the reduction flue gas entered into to the casing through the oil net and the space between the cigarette through-hole takes place for flue gas as much as possible passes through the oil net and enters into to the casing.

Optionally, a second sealing plate is arranged on the rotating rod far away from the oil collecting tank, the second sealing plate is located between the two first sealing plates, and the second sealing plate is abutted to the first sealing plates.

Through adopting above-mentioned technical scheme, seal one side between two first closing plates through the second closing plate, further reduce the flue gas and do not pass through the condition emergence that the oil net got into to the casing in.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the oil screen and the stop gate are cleaned through the cleaning assembly, so that an operator can clean the oil screen conveniently, and the cleaning box is heated through the heat of smoke, so that the cleaning effect of the oil screen is improved;

2. the driving assembly drives the stop door to open and close, and simultaneously the oil screen moves along the direction close to the stop door, so that the cleaning effect of the oil screen is further improved;

3. realize separating oil and cleaning solution through the reposition of redundant personnel subassembly and store, when the realization is cleared up the oil net, realize the recovery to oil.

Drawings

Fig. 1 is a schematic structural diagram of a specific embodiment of the present application.

Fig. 2 is a cross-sectional view of the cleaning assembly of fig. 1.

Fig. 3 is a sectional view of fig. 1, showing the structure of the inside of the case.

Fig. 4 is a cross-sectional view of fig. 3, showing the structure of the entraining assembly and the structure of the flow dividing assembly.

Fig. 5 is an enlarged view of a portion a in fig. 4, showing the bringing structure.

Fig. 6 is an enlarged view at B in fig. 4 for showing the structure of the flow dividing assembly.

Fig. 7 is a schematic structural view of the first seal plate, the second seal plate and the oil screen in fig. 3.

Reference numerals: 1. a housing; 11. a smoke inlet through hole; 12. a blocking door; 14. a drive motor; 15. an oil screen; 16. a liquid inlet through hole; 17. a feed tube; 2. cleaning the assembly; 21. a cleaning tank; 22. an opening and closing member; 221. a blocking plate; 222. an electric telescopic rod; 223. a liquid outlet through hole; 23. a guide through hole; 3. a driving component; 31. rotating the rod; 32. a driving structure; 321. an idler pulley; 322. an incomplete gear; 323. a connecting rod; 324. a driven rack; 4. a collection assembly; 41. an oil collecting tank; 42. a slide bar; 5. a flow diversion assembly; 51. a partition plate; 52. a flow distribution plate; 53. adjusting the bolt; 54. a fixing plate; 55. a weight block; 6. a first flow dividing zone; 7. a second flow splitting zone; 8. a first sealing plate; 9. a second sealing plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses side-draft range hood. Referring to fig. 1, the side-suction range hood comprises a shell 1, wherein a smoke inlet through hole 11 is formed in the outer side wall of the shell 1, a stop door 12 for stopping the smoke inlet through hole 11 is rotatably connected to the side wall of the shell 1, the hinged position of the stop door 12 and the shell 1 is positioned above the smoke inlet through hole 11, a driving assembly is arranged on the outer side wall of the shell 1, the driving assembly comprises a driving motor 14, and an output shaft of the driving motor 14 is fixedly connected to the stop door 12; the upper end surface of the shell 1 is provided with a cleaning component 2; an oil screen 15 for blocking oil in the smoke and a collecting assembly 4 for collecting the oil on the oil screen 15 are arranged in the shell 1, and a space for allowing the oil to pass through is formed between the oil screen 15 and the smoke inlet through hole 11.

During the use, driving motor 14 drives and blocks door 12 and rotate and open for the flue gas enters into casing 1 through advancing cigarette through-hole 11 and oil net 15 in, and oil flows into to collecting assembly 4 through oil net 15 and the space between advancing cigarette through-hole 11 and collects.

Referring to fig. 1 and 2, the cleaning assembly 2 includes a cleaning tank 21 and a shutter 22 for opening or closing the cleaning tank 21; wash case 21 fixed connection in casing 1's up end, wash case 21 up end fixedly connected with filling tube 17, filling tube 17 is linked together with washing case 21, and the bottom of the case of washing case 21 is seted up along the guiding hole 23 who washs 21 length direction evenly distributed, and a plurality of guiding hole 23 are a set of, and a set of guiding hole 23 is along wasing 21 width direction evenly distributed of case.

Referring to fig. 1 and 2, the upper end surface of the shell 1 is provided with a liquid inlet through hole 16 communicated with a plurality of guide through holes 23; the opening and closing member 22 comprises a blocking plate 221 and an electric telescopic rod 222 for driving the blocking plate 221 to slide in the cleaning tank 21; the length direction of the electric telescopic rod 222 is parallel to the width direction of the cleaning box 21, the electric telescopic rod 222 is positioned between the cleaning box 21 and the shell 1, and the electric telescopic rod 222 is fixedly connected to the upper end surface of the shell 1; the blocking plate 221 is located between the guide through hole 23 and the liquid inlet through hole 16, the blocking plate 221 is fixedly connected to a piston rod of the electric telescopic rod 222, four liquid outlet through holes 223 are formed in the upper end face of the blocking plate 221, the length direction of the liquid outlet through holes 223 is parallel to the length direction of the cleaning box 21, the four liquid outlet through holes 223 are evenly distributed along the width direction of the cleaning box 21, and the liquid outlet through holes 223 are communicated with the group of guide through holes 23.

When the cleaning device is used, the driving motor 14 drives the blocking door 12 to be closed, then the electric telescopic rod 222 drives the liquid outlet through holes 223 in the blocking plate 221 to move, so that the liquid outlet through holes 223 are communicated with the plurality of guide through holes 23, cleaning liquid in the cleaning box 21 enters the shell 1 through the guide through holes 23, the liquid outlet through holes 223 and the liquid inlet through holes 16, the cleaning liquid flows onto the oil screen 15, and the oil screen 15 is cleaned.

Referring to fig. 3 and 4, a driving assembly 3 for driving the oil screen 15 to be close to the smoke inlet through hole 11 is disposed on the inner wall of the casing 1, and the driving assembly 3 includes four rotating rods 31 and two driving structures 32 for driving the rotating rods 31 to rotate.

Referring to fig. 4 and 5, two dwang 31 are a set of, and smoke inlet through hole 11 is located between two sets of dwang 31, and two dwang 31 one end all rotate to be connected on oil net 15, and the other end of two dwang 31 all rotates to be connected on casing 1 inner wall, and two dwang 31, oil net 15 and casing 1 form the parallelogram.

Referring to fig. 4 and 5, the smoke inlet hole 11 is located between two driving structures 32, and each driving structure 32 includes an idle gear 321, an incomplete gear 322, a connecting rod 323 and a driven rack 324; the incomplete gear 322 is fixedly connected to the stop gate 12, the rotation circle center of the incomplete gear 322 is concentrically arranged with the rotation axis of the stop gate 12, and the incomplete gear 322 is positioned above the oil screen 15; the idle gear 321 is rotatably connected to the inner wall of the housing 1, the idle gear 321 is meshed with the incomplete gear 322, and the idle gear 321 is located above the oil screen 15; the driven rack 324 is positioned on one side of the idle gear 321, which is far away from the incomplete gear 322, the length direction of the driven rack 324 is parallel to the inclination direction of the oil screen 15, the driven rack 324 is connected to the inner wall of the shell 1 in a sliding manner along the inclination direction of the oil screen 15, and the driven rack 324 is meshed with the idle gear 321; the connecting rod 323 is located above the oil screen 15, one end of the connecting rod 323 is rotatably connected to the driven rack 324, and the other end of the connecting rod 323 is rotatably connected to an end face of the oil screen 15 far away from the smoke inlet through hole 11.

When the device is used, the driving motor 14 drives the blocking door 12 to open, the blocking door 12 drives the driven rack 324 to move through the incomplete gear 322 and the idle gear 321, the driven rack 324 drives the rotating rod 31 to rotate through the connecting rod 323, and the rotating rod 31 drives the oil screen 15 to move in the direction away from the smoke inlet through hole 11; after using the completion, driving motor 14 drives and blocks door 12 and close, it drives driven rack 324 and removes through incomplete gear 322 and idler 321 to block door 12, driven rack 324 drives dwang 31 through connecting rod 323 and rotates, dwang 31 drives oil net 15 and removes along the direction that is close to into cigarette through-hole 11, make oil net 15 and the interval between blocking door 12 reduce, the clearance liquid that washs the incasement 21 clears up oil net 15, make clearance liquid clear up oil net 15 both ends face, further improve the clean effect to oil net 15.

Referring to fig. 4 and 6, the collection assembly 4 includes an oil collection tank 41 and two slide rods 42; the length directions of the two sliding rods 42 are parallel to the length direction of the oil collecting tank 41, the two sliding rods 42 are fixedly connected to the upper end face of the oil collecting tank 41, the two sliding rods 42 are distributed along the width direction of the oil collecting tank 41, the sliding rods 42 are connected to the lower end face of the shell 1 in a sliding mode, and the oil collecting tank 41 is located below the oil screen 15.

Referring to fig. 4 and 6, a flow dividing assembly 5 for dividing oil and cleaning liquid is disposed in the oil collecting tank 41, and the flow dividing assembly 5 includes a partition plate 51 and a flow dividing plate 52; the separation plate 51 is vertically arranged, the length direction of the separation plate 51 is parallel to the length direction of the oil collection tank 41, the lower end of the separation plate 51 is fixedly connected to the inner bottom surface of the oil collection tank 41, the separation plate 51 divides the interior of the oil collection tank 41 into a first flow dividing area 6 and a second flow dividing area 7, and the first flow dividing area 6 is located between the second flow dividing area 7 and the smoke inlet through hole 11.

Referring to fig. 4 and 6, the shunt assembly 5 further includes two adjusting bolts 53, a fixing plate 54, and a weight 55; the fixing plate 54 is fixedly connected to one end of the oil screen 15 close to the oil collecting tank 41, the two adjusting bolts 53 are distributed along the length direction of the fixing plate 54, both the two adjusting bolts 53 are in threaded connection with one end surface of the fixing plate 54 close to the oil collecting tank 41, and the head parts of the adjusting bolts 53 are abutted to one end of the flow distribution plate 52 close to the smoke inlet through hole 11; the weight 55 is fixedly connected to the surface of the fixing plate 54 near the bottom of the oil collecting tank 41, and the weight 55 is located in the second flow dividing area 7.

Before use, an operator rotates the adjusting bolts 53 to adjust the inclination angle of the splitter plate 52, after adjustment is completed, the driving motor 14 drives the blocking door 12 to close, the blocking door 12 drives the oil screen 15 to move in the direction close to the smoke inlet through hole 11 and the splitter plate 52 through the driving structure 32, the two adjusting bolts 53 are abutted against the splitter plate 52, so that one end, close to the oil screen 15, of the splitter plate 52 penetrates into the first splitter area 6, then cleaning liquid in the cleaning box 21 flows into one surface, far away from the smoke inlet through hole 11, of the oil screen 15 and between the oil screen 15 and the blocking door 12, so that the cleaning liquid cleans both surfaces of the oil screen 15, the cleaning effect on the oil screen 15 is improved, and the cleaning liquid enters the first splitter area 6 through the space between the splitter plate 52 and the two adjusting bolts 53 and is guided by the oil screen 15, the blocking door 12 and the splitter plate 52; when the smoke exhaust ventilator is used, the driving motor 14 drives the blocking door 12 to be opened, the blocking door 12 drives the oil screen 15 to move in the direction far away from the smoke inlet through hole 11 and the flow distribution plate 52 through the driving structure 32, the two adjusting bolts 53 are abutted against the flow distribution plate 52, so that one end, far away from the oil screen 15, of the flow distribution plate 52 penetrates into the second flow distribution area 7, and after smoke passes through the oil screen 15, oil in the smoke is guided through the oil screen 15 and enters into the second flow distribution area 7 through a space between the flow distribution plate 52 and the two adjusting bolts 53; the oil screen 15 is close to or far away from the smoke inlet through hole 11 to move, the cleaning effect of the oil screen 15 is improved, and meanwhile, the oil and the cleaning liquid are separated and stored.

Referring to fig. 3 and 7, two first sealing plates 8 are fixedly connected to the inner wall of the housing 1, the length direction of the first sealing plates 8 is parallel to the width direction of the oil screen 15, the oil screen 15 is located between the two first sealing plates 8, and the oil screen 15 is in contact with the two first sealing plates 8.

Referring to fig. 4 and 7, the second seal plate 9 is fixedly connected between the two rotating rods 31 relatively far from the diversion plate 52, and the longitudinal direction of the second seal plate 9 is parallel to the longitudinal direction of the oil screen 15.

When the device is used, the first sealing plate 8 and the second sealing plate 9 reduce the situation that smoke does not pass through the oil net 15.

The implementation principle of the side-draft range hood in the embodiment of the application is as follows: before use, the operator can rotate the adjusting bolt 53 to adjust the inclination angle of the splitter plate 52.

When the smoke inlet device is used, the driving motor 14 drives the blocking door 12 to be opened, the blocking door 12 drives the oil screen 15 to move in the direction far away from the smoke inlet through hole 11 through the driving structure 32, the head of the adjusting bolt 53 moves in the direction far away from the flow distribution plate 52, one end of the flow distribution plate 52 penetrates into the second flow distribution area 7 under the action of a heavy object, and smoke passes through the oil screen 15 to enable oil in the smoke to enter the second flow distribution area 7 through the oil screen 15 and the flow distribution plate 52; then the driving motor 14 drives the blocking door 12 to close, the blocking door 12 drives the oil screen 15 to move in the direction close to the smoke inlet through hole 11 through the driving structure 32, the head of the adjusting bolt 53 moves in the direction close to the flow distribution plate 52, the adjusting bolt 53 drives the flow distribution plate 52 to rotate, so that one end of the flow distribution plate 52 penetrates into the first flow distribution area 6, then the cleaning solution in the cleaning box 21 enters into the first flow distribution area 6 through the oil screen 15 and the flow distribution plate 52, separation and storage of oil and the cleaning solution are achieved, and the oil screen 15 is dried through waste heat.

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

Claims

1. A side-draft range hood is characterized in that: the device comprises a shell (1), wherein a smoke inlet through hole (11) is formed in the shell (1), a blocking door (12) used for blocking the smoke inlet through hole (11) is connected to the shell (1) in a rotating mode, a driving assembly used for driving the blocking door (12) to rotate is arranged on the shell (1), an oil net (15) and a cleaning assembly (2) used for cleaning the oil net (15) are arranged in the shell (1), and the cleaning assembly (2) comprises a cleaning box (21) and an opening and closing piece (22) used for opening or closing the cleaning box (21); the cleaning box (21) is arranged on the shell (1).

2. A side draft range hood according to claim 1, wherein: the opening and closing piece (22) comprises a blocking plate (221) and an electric telescopic rod (222) for driving the blocking plate (221) to slide in the cleaning box (21); the bottom of the cleaning box (21) is provided with a plurality of guide through holes (23) for guiding the cleaning liquid in the cleaning box (21) to the oil screen (15); the blocking plate (221) is connected to the inner bottom wall of the cleaning box (21) in a sliding manner; the blocking plate (221) is provided with a plurality of liquid outlet through holes (223) which are communicated with the guide through holes (23).

3. A side draft range hood according to claim 1, wherein: be provided with in casing (1) and be used for carrying out the collection subassembly (4) of collecting to the oil on oil net (15), collection subassembly (4) are including sump oil tank (41), sump oil tank (41) are located oil net (15) below, sump oil tank (41) can be dismantled and set up in casing (1), oil net (15) and advance and form the space that the oil feed passes through between cigarette through-hole (11).

4. A side draft range hood according to claim 3, wherein: a driving assembly (3) for driving the oil screen (15) to be close to the smoke inlet through hole (11) is arranged in the shell (1), and the driving assembly (3) comprises two rotating rods (31) and a driving structure (32) for driving the rotating rods (31) to rotate; two dwang (31) one end all rotate connect in on oil net (15), two dwang (31) other end rotate connect in on the inner wall of casing (1), two dwang (31) casing (1) inside wall and oil net (15) form parallelogram.

5. A side draft range hood according to claim 4, wherein: the driving structure (32) comprises an idle gear (321), an incomplete gear (322), a connecting rod (323) and a driven rack (324); the incomplete gear (322) is arranged on the stop door (12), the incomplete gear (322) is positioned in the shell (1), and the circle center of the incomplete gear (322) is concentrically arranged with the hinged part of the stop door (12) and the shell (1); the driven rack (324) is connected to the inner wall of the shell (1) in a sliding manner along the direction close to or far away from the oil collecting tank (41); the idle wheel (321) is rotatably connected to the inner side wall of the shell (1), the idle wheel (321) is positioned between the driven rack (324) and the incomplete gear (322), and the idle wheel (321) is meshed with the driven rack (324) and the incomplete gear (322); one end of the connecting rod (323) is rotatably connected to the driven rack (324), and the other end of the connecting rod (323) is rotatably connected to the oil net (15).

6. A side draft range hood according to claim 4, wherein: the oil collecting tank (41) is provided with a shunting assembly (5) for shunting oil and cleaning liquid, and the shunting assembly (5) comprises a partition plate (51) and a shunting plate (52); the separation plate (51) is arranged in the oil collection tank (41), and the separation plate (51) divides the interior of the oil collection tank (41) into a first flow dividing area (6) and a second flow dividing area (7); the oil screen cleaning device is characterized in that the flow distribution plate (52) is rotatably connected to the partition plate (51), the flow distribution plate (52) is used for abutting against the oil screen (15), one end of the flow distribution plate (52) is used for penetrating into the first flow distribution area (6) under the action of the oil screen (15), the other end of the flow distribution plate (52) is used for penetrating into the second flow distribution area (7), and a space for oil supply or cleaning liquid to pass through is formed between the flow distribution plate (52) and the oil screen (15).

7. A side draft range hood according to claim 6, wherein: shunt subassembly (5) still include two adjusting bolt (53), two equal threaded connection in adjusting bolt (53) the oil net (15) are close to the one end of flow distribution plate (52), the head of adjusting bolt (53) be used for with flow distribution plate (52) are inconsistent, two form the space that fuel feeding or washing liquid passed through between adjusting bolt (53).

8. A side draft range hood according to claim 6, wherein: the flow dividing assembly (5) further comprises a weight (55), the weight (55) is arranged on the flow dividing plate (52), and the weight (55) is positioned on one side, away from the oil net (15), of the separation plate (51).

9. A side draft range hood according to claim 4, wherein: the inner wall of the shell (1) is provided with two first sealing plates (8), the oil net (15) is located between the two first sealing plates (8), and the oil net (15) is inconsistent with the first sealing plates (8).

10. A side draft range hood according to claim 9, wherein: keep away from oil collecting tank (41) be provided with second closing plate (9) on dwang (31), second closing plate (9) are located between two first closing plate (8), second closing plate (9) are inconsistent with first closing plate (8).