CN216814301U - Range hood with automatically distributed smoke outlet capable of being converted to stretch - Google Patents

Abstract

The utility model discloses a smoke exhaust ventilator with an automatically distributed smoke outlet capable of converting and stretching, which belongs to the technical field of smoke exhaust ventilators and comprises a side-suction type box body and an arc-shaped smoke exhaust box body, wherein the side-suction type box body is provided with an arc-shaped groove with an upward opening, the top of the side-suction type box body is provided with a smoke suction opening towards one side, the bottom of the arc-shaped groove is provided with an oil collecting box, the top of one side of the oil collecting box is communicated with a self-cleaning oil-gas separation structure arranged in the side-suction type box body, one side of the self-cleaning oil-gas separation structure is communicated with a fan set arranged on the side surface of the side-suction type box body, the smoke exhaust box body is provided with a driving mechanism for controlling the stretching of the smoke exhaust box body, a looped arc-shaped smoke track and an arc-shaped flow distribution plate are arranged in the smoke exhaust box body, two sides of the arc-shaped flow distribution plate are symmetrically provided with a plurality of turbulence adsorption plates for preliminarily colliding and separating oil drops from smoke, and automatically controlling and expanding the range of smoke exhaust according to use requirements through the mechanisms, the efficiency of smoke pump drainage and filtration separation is improved, self-cleaning's function has been realized simultaneously.

Description

Range hood with automatically distributed smoke outlet capable of being converted to stretch

Technical Field

The utility model relates to the technical field of range hoods, in particular to a range hood with an automatically distributed smoke outlet capable of being converted to stretch.

Background

The range hood has gone through nearly 20 years in China, and the range hood is developed from the initial top-suction thin range hood to the side-suction deep range hood, and is developed to the conditions of top-suction type disassembly-free and European range hood as the main conditions.

Although the top-suction range hood is high in oil smoke extraction efficiency, the top-suction range hood occupies a large space when being installed, a sense of experience of space depression is generated for people, meanwhile, the top-suction range hood is easy to loosen and collide in the using process, a side-suction range hood is derived, the side-suction range hood is installed on a wall, the occupied space of a kitchen is small, the oil smoke extraction efficiency is low, the existing side-suction range hood is generally installed in a fixed mode, a smoke extraction port of the existing side-suction range hood is also fixed and not adjustable, smoke generated in the cooking process cannot be effectively and completely sucked into the range hood, the smoke far away from the smoke extraction port is easy to diffuse into the kitchen, and the cooking personnel are not disturbed; meanwhile, the oil smoke filtering efficiency in the side-draft range hood is low, the filter screen needs to be cleaned regularly, and otherwise, the oil smoke filtering and separating efficiency is further influenced.

Based on the problems, the utility model provides the range hood with the smoke outlet capable of automatically distributing, converting and stretching.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the technical background, the utility model aims to provide the range hood with the automatic distributed conversion and expansion smoke outlet, on one hand, the coverage and smoke extraction efficiency of the range hood is improved by arranging the arc-shaped smoke extraction box body which can extend to the outer side of the side suction box body and controlling the upward and outer extension lengths according to different smoke sizes; on the other hand is through addding the transport flue gas track in arc smoke ventilator box, install in the flue gas track and carry out preliminary oil smoke absorption to the vortex adsorption plate that preliminary collision was adsorbed to the oil smoke, carry out thorough oil smoke separation through bottom oil smoke separation filter screen, install self-cleaning device simultaneously on the formula box is inhaled to the side, satisfy the washing-free function when realizing improving oil smoke and appearing efficiency, it has the oil smoke to take out to arrange inefficiency to have solved among the background art to promote current formula lampblack absorber is inhaled to the side, it crosses the problem of low and needs often clear up the filter screen to separate out efficiency to the grease in the oil smoke.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a range hood with an automatically distributed smoke outlet capable of being converted and stretched comprises a side suction type box body and a smoke extraction box body,

an arc-shaped groove with an upward opening is formed in the side-draft type box body, the top of the arc-shaped groove is connected to a smoke suction port formed in the top and one side of the side-draft type box body, an oil collecting box is mounted at the bottom of the arc-shaped groove, the top of one side of the oil collecting box is communicated with a self-cleaning oil-gas separation structure mounted in the side-draft type box body, and one side of the self-cleaning oil-gas separation structure is communicated with a fan set mounted on the side of the side-draft type box body;

the bottom of the smoking box body is arranged in the arc-shaped groove, and driving mechanisms for controlling the stretching of the smoking box body are symmetrically arranged on two sides above the side-suction box body;

an arc-shaped smoke track penetrating through the upper end and the lower end of the smoke box body is arranged in the smoke box body, an arc-shaped splitter plate which divides the arc-shaped smoke track into two parts is slidably arranged on the smoke box body through an arc-shaped positioning groove, a plurality of groups of flow disturbing adsorption plates which are wavy from bottom to top and have gradually reduced wavy arc radiuses are symmetrically arranged on two surfaces of the arc-shaped splitter plate, a plurality of groups of oil fume suction inlets communicated with the arc-shaped flue gas track are uniformly arranged on one side surface of the smoke box body close to the smoke suction port in front of the turbulent flow adsorption plate, meanwhile, a sealing plate for sealing the bottom of the front half arc smoke track is arranged at the bottom of the smoke extraction box body between the turbulence adsorption plate and the oil smoke suction inlet, the oil-gas separator is characterized in that the sealing plate is provided with a plurality of oil seepage holes facing the oil collecting box, the top of the smoke exhaust box body is provided with a cover plate, and the bottom of the cover plate is communicated with the arc smoke gas track through a groove.

Further, arc tank bottom intercommunication opening to the first mounting groove of side suction type box side, install in the first mounting groove the collection oil box.

Furthermore, one side of the top of the first mounting groove is communicated with a second mounting groove with an opening facing one side of the side suction type box body, and the self-cleaning oil-gas separation structure is mounted in the second mounting groove.

Further, automatically cleaning formula oil-gas separation structure contains clean shower nozzle of multiunit, oil smoke separation filter screen, pours into connecting pipe and fluid-discharge tube, and the multiunit clean shower nozzle is installed top in the second mounting groove, oil smoke separation filter screen is installed middle part in the second mounting groove, pour into connecting pipe medial extremity intercommunication multiunit clean shower nozzle, fluid-discharge tube medial extremity intercommunication is in bottom in the second mounting groove, oil smoke separation filter screen with between the fluid-discharge tube the side-draught type box is equipped with the gas vent to a side, pour into the liquid supply system that the connecting pipe inserted the outside, the drain pipe intervenes the sewage pipes in the outside.

Furthermore, the exhaust port is communicated with the fan unit on the outer side, and the fan unit is connected with an outer exhaust pipe.

Further, the bilateral symmetry of smoking box is equipped with and is curved toothed plate groove, the curved tooth group that actuating mechanism contained is installed to the toothed plate inslot, the side is inhaled formula box top bilateral symmetry and is equipped with the intercommunication the equipment groove of arc wall, install in the equipment groove actuating mechanism.

Furthermore, the driving mechanism comprises a bevel gear, a first servo motor and a mounting seat, the first servo motor is installed on the mounting seat, the mounting seat is installed in the equipment groove, the output end of the first servo motor is connected with the bevel gear through a coupler, and one side of the bevel gear extends into the arc-shaped groove and is installed in meshing mode with the arc-shaped tooth group.

Furthermore, the smoke box body above the inner side of the oil smoke suction inlet is provided with a cut-off groove, and two ends of the cut-off groove are communicated with arc-shaped guide grooves arranged on the arc-shaped surface of the inner side of the smoke box body.

Furthermore, the top of the intercepting groove is arranged to be a slope surface facilitating oil drops to flow in, and the bottom of the intercepting groove is arranged to be an inclined surface towards the two ends of the arc-shaped diversion grooves.

Furthermore, the top of the smoking box body is provided with a bayonet, the bottom of the cover plate is provided with a clamping block, and the cover plate is arranged on the top of the smoking box body, and the clamping block is inserted into the bayonet.

Furthermore, a control assembly for controlling the self-cleaning oil-gas separation structure and the driving mechanism is installed on one side of the side suction type box body.

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

(1) according to the utility model, the opening of the arc-shaped smoke exhaust box body on the side suction type box body is controlled by the driving mechanism to stretch into the arc-shaped groove on the outer side of the top, so that a plurality of groups of oil smoke suction ports arranged on the inner side surface of the smoke exhaust box body are controlled to stretch upwards and outwards, the range of smoke exhaust is automatically controlled and expanded according to use requirements, the use flexibility and the smoke exhaust efficiency of the side suction type range hood are improved, the smoke exhaust box body retracts and resets after being used, the space is not occupied, and the smoke exhaust box is attractive and elegant.

(2) The utility model is characterized in that an arc-shaped flue gas track penetrating through the upper end and the lower end of a smoke box body is arranged in the smoke box body, an arc-shaped splitter plate for dividing the arc-shaped flue gas track into two parts is slidably arranged on the smoke box body through an arc-shaped positioning groove, a plurality of groups of flow-disturbing adsorption plates which are wavy from bottom to top and have gradually-reduced wave arc-shaped radiuses are symmetrically arranged on two sides of the arc-shaped splitter plate, a plurality of groups of oil fume suction ports communicated with the arc-shaped flue gas track are uniformly arranged on one side surface of the smoke box body in front of the flow-disturbing adsorption plates, which is close to a smoke suction port, a sealing plate for sealing the bottom of the front half arc-shaped flue gas track is arranged at the bottom of the smoke box body between the flow-disturbing adsorption plates and the oil fume suction ports, a plurality of oil-penetrating holes facing an oil collecting box are arranged on the sealing plate, a cover plate is arranged at the top of the smoke box body, the front arc-shaped flue gas track is communicated with the front arc-shaped flue gas track through a groove arranged at the bottom of the cover plate, and the arc-shaped flue gas track at the outer side of the smoke suction port, the oil droplets collide with a plurality of groups of wavy turbulence adsorption plates from bottom to top, the separated oil droplets slide to the bottom along the arc-shaped splitter plate and fall into an oil collecting box through an oil seepage hole, meanwhile, the turbulence adsorption plates are wavy, the radius of a wave arc is gradually reduced, the speed of smoke collected from a plurality of groups of oil smoke suction inlets at the bottom to the top is gradually increased from bottom to top, the wave arc-shaped density of the turbulence adsorption plates is increased, the extrusion collision efficiency of the smoke is improved, the oil droplets separation efficiency is further improved, the oil smoke enters an arc-shaped smoke track at the back of the arc-shaped splitter plate through a groove at the top, the speed is gradually reduced from top to bottom, the wave arc-shaped density of the turbulence adsorption plates is reduced, the separated oil droplets flow into the oil collecting box along the arc-shaped smoke track opening from the bottom along the arc-shaped splitter plate, the purpose of preliminarily separating large oil droplets is improved through the structure, the content of oil droplets in the smoke is reduced, and the burden precision of separating the oil droplets in the smoke is reduced, thereby improving the efficiency of the whole flue gas separation.

(3) According to the utility model, the top of one side of the oil collecting box is communicated with the self-cleaning oil-gas separation structure arranged in the side-draft type box body, one side of the self-cleaning oil-gas separation structure is communicated with the fan unit arranged on the side surface of the side-draft type box body, smoke is further subjected to oil-smoke separation through the oil-smoke separation filter screen, generated oil drops are adsorbed on the oil-smoke separation filter screen, when cleaning is required, liquid is supplied to a plurality of groups of cleaning spray heads through a liquid supply system, the cleaning spray heads spray cleaning liquid to the oil-smoke separation filter screen, the cleaning liquid dissolves the oil drops adsorbed on the oil-smoke separation filter screen and is discharged into a sewage pipe through a liquid discharge pipe at the bottom, so that the automatic cleaning function is realized, manual disassembly cleaning steps are saved, and the use convenience is increased.

Drawings

FIG. 1 is a first perspective view provided in accordance with an embodiment of the present invention;

FIG. 2 is a second perspective view provided in accordance with an embodiment of the present invention;

FIG. 3 is a third perspective view provided by an embodiment of the present invention;

FIG. 4 is a disassembled perspective view of the side draft type box body, the oil collecting box and the fan unit provided by the embodiment of the utility model;

FIG. 5 is a perspective view of a side draft housing according to an embodiment of the present invention;

FIG. 6 is a perspective view of a side-suction box in half section according to an embodiment of the present invention;

FIG. 7 is an isometric view of the smoke evacuation box and cover plate provided in accordance with an embodiment of the present invention;

fig. 8 is a half-sectional perspective view of the smoke box, the arc splitter plate and the plurality of groups of turbulent adsorption plates according to the embodiment of the present invention;

FIG. 9 is a partial perspective view of the bottom of the smoking article housing provided in accordance with an embodiment of the present invention;

FIG. 10 is a disassembled perspective view of a top cover plate of the smoking housing provided in accordance with an embodiment of the present invention;

fig. 11 is a perspective view of an installation of an arc-shaped splitter plate and a plurality of groups of spoiler adsorption plates according to an embodiment of the present invention;

figure 12 is a perspective view of a smoking article housing provided in accordance with an embodiment of the present invention;

figure 13 is a perspective view in half section of a smoking article housing provided in accordance with an embodiment of the present invention.

In the figure: 1. a side draft type box body; 2. an arc-shaped slot; 3. a smoking port; 4. an equipment groove; 5. a bevel gear; 6. a first servo motor; 7. a mounting seat; 8. a first mounting groove; 9. an oil collecting box; 10. a second mounting groove; 11. cleaning the spray head; 12. oil smoke separation filter screen; 13. injecting into a connecting pipe; 14. a liquid discharge pipe; 15. an exhaust port; 16. a fan unit; 17. an outer exhaust pipe; 18. a smoke box body; 19. a lampblack suction inlet; 20. an arc-shaped flue gas track; 21. a bayonet; 22. an arc-shaped diversion trench; 23. an arc-shaped positioning groove; 24. a cut-off slot; 25. closing the plate; 2501. an oil seepage hole; 26. a toothed plate groove; 27. an arc-shaped tooth group; 28. a cover plate; 29. a groove; 30. a clamping block; 31. an arc-shaped splitter plate; 32. a turbulent flow adsorption plate; 33. and a control component.

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are given by way of illustration and explanation only, not limitation.

As shown in fig. 1-13, a range hood with an automatically distributed smoke outlet capable of being converted to extend and retract comprises a side-suction type box body 1 and a smoke box body 18, wherein an arc-shaped groove 2 with an upward opening is formed in the side-suction type box body 1, the top of the arc-shaped groove 2 is connected to a smoke outlet 3 formed in the top and one side of the side-suction type box body 1, an oil collecting box 9 is installed at the bottom of the arc-shaped groove 2, the top of one side of the oil collecting box 9 is communicated with a self-cleaning type oil-gas separation structure installed in the side-suction type box body 1, one side of the self-cleaning type oil-gas separation structure is communicated with a fan set 16 installed on the side of the side-suction type box body 1, the bottom of the smoke box body 18 is installed in the arc-shaped groove 2, and driving mechanisms for controlling the extension and retraction of the smoke box body 18 are symmetrically installed on two sides above the side-suction type box body 1; an arc-shaped flue gas track 20 penetrating through the upper end and the lower end of the smoke box 18 is arranged in the smoke box 18, an arc-shaped splitter plate 31 which divides the arc-shaped flue gas track 20 into two parts is slidably arranged on the smoke box 18 through an arc-shaped positioning groove 23, a plurality of groups of flow disturbing adsorption plates 32 which are wave-shaped from bottom to top and have gradually reduced wave arc radiuses are symmetrically arranged on the two surfaces of the arc-shaped splitter plate 31, a plurality of groups of oil smoke suction ports 19 communicated with the arc-shaped flue gas track 20 are uniformly arranged on one side surface of the smoke box 18 in front of the flow disturbing adsorption plates 32, which is close to the smoke suction port 3, meanwhile, a sealing plate 25 for sealing the bottom of the front semi-arc smoke track 20 is arranged at the bottom of the smoke box body 18 between the turbulent flow adsorption plate 32 and the smoke suction inlet 19, a plurality of oil seepage holes 2501 facing the oil collecting box 9 are arranged on the sealing plate 25, a cover plate 28 is arranged at the top of the smoke box body 18, and the bottom of the cover plate 28 is communicated with the front and rear arc smoke tracks 20 through a groove 29.

In the embodiment, the arc-shaped smoke box body 18 is controlled by the driving mechanism to extend and retract in the arc-shaped groove 2, the top end of the smoke box body 18 extends upwards and outwards in the extending process, the range of smoke exhaust can be automatically controlled and expanded according to the use requirement, the use flexibility of the side-suction type range hood and the smoke exhaust efficiency are improved, the smoke exhaust device retracts and resets after being used, the space is not occupied, and the smoke exhaust device is attractive and elegant; in the extending process, the smoke pumping box body 18 extends upwards towards a plurality of groups of oil smoke suction inlets 19 on one side surface of the kitchen ware and one side of the kitchen ware, smoke enters the arc-shaped smoke track 20 on the outer side through the oil smoke suction inlets 19 and collides with a plurality of groups of wave-shaped turbulent flow adsorption plates 32 from bottom to top, separated oil drops slide down along the arc-shaped flow distribution plates 31 to the bottom and fall into the oil collection box 9 through the oil seepage holes 2501, meanwhile, the wave-shaped arc radii of the turbulent flow adsorption plates 32 are gradually reduced, the speed of the smoke converged from the bottom to the top by the plurality of groups of oil smoke suction inlets 19 on the top is gradually increased, the wave-shaped density of the turbulent flow adsorption plates 32 is increased, the smoke extrusion collision efficiency is improved, the oil drop separation efficiency is further improved, the smoke enters the arc-shaped smoke track 20 on the back of the arc-shaped flow distribution plates 31 through the grooves 29 on the top, the speed is gradually reduced from top to bottom, and the wave-shaped arc-shaped density of the turbulent flow adsorption plates 32 is reduced therewith, the oil that appears flows into the arc flue gas track 20 mouth of bottom along arc flow distribution plate 31 in falling into collection oil box 9, has improved through above structure and has tentatively appeared the purpose that the large granule oil drips, reduces the content of oil drip granule in the flue gas, has reduced the burden that lower part precision separation flue gas drips, and then has improved the efficiency of whole flue gas separation.

As shown in fig. 1, 4 and 6, the bottom of the arc-shaped groove 2 is communicated with a first mounting groove 8 with an opening facing to one side of the side-suction type box body 1, an oil collecting box 9 is mounted in the first mounting groove 8, and the oil droplets separated out can be cleaned conveniently by personnel regularly by arranging the oil collecting box 9.

As shown in fig. 6, one side of the top of the first installation groove 8 is communicated with a second installation groove 10 with an opening facing to one side of the side-suction type box body 1, a self-cleaning type oil-gas separation structure is installed in the second installation groove 10, and through the communication of the second installation groove 10 on one side of the top of the first installation groove 8, when oil drops are collected in the oil collecting box 9, the smoke flows into the next step for secondary high-precision oil-gas separation.

As shown in fig. 3, 4 and 6, the self-cleaning oil-gas separation structure comprises a plurality of groups of cleaning nozzles 11, an oil-smoke separation filter screen 12, an injection connecting pipe 13 and a liquid discharge pipe 14, wherein the plurality of groups of cleaning nozzles 11 are arranged at the top in a second installation groove 10, the oil-smoke separation filter screen 12 is arranged at the middle in the second installation groove 10, the inner side end of the injection connecting pipe 13 is communicated with the plurality of groups of cleaning nozzles 11, the inner side end of the liquid discharge pipe 14 is communicated with the bottom in the second installation groove 10, an exhaust port 15 is arranged at one side surface of a side-suction type box body 1 between the oil-smoke separation filter screen 12 and the liquid discharge pipe 14, the injection connecting pipe 13 is connected to a liquid supply system at the outer side, the liquid discharge pipe 14 is inserted into a sewage discharge pipeline at the outer side, the plurality of groups of cleaning nozzles 11 are enabled to spray cleaning liquid to the oil-smoke separation filter screen 12 by controlling the liquid supply system, the cleaning liquid is dissolved and adsorbed on the oil stains on the oil-smoke separation filter screen 12 and then collected at the bottom of the second installation groove 10, and is discharged into a sewage discharge pipeline through a liquid discharge pipe 14, and an exhaust port 15 is arranged between the oil smoke separation filter screen 12 and the liquid discharge pipe 14 to prevent sewage from entering the exhaust port 15 during cleaning.

As shown in fig. 1 and 4, the exhaust port 15 is communicated with an outside fan set 16, an outside exhaust duct 17 is connected to the fan set 16, the fan set 16 exhausts air to the whole device, and the filtered air is exhausted out of the room through the outside exhaust duct 17.

As shown in fig. 5 and 7, the two sides of the smoking box 18 are symmetrically provided with arc-shaped toothed plate grooves 26, the arc-shaped toothed group 27 contained in the driving mechanism is installed in the toothed plate grooves 26, the two sides of the upper side of the side-draft box 1 are symmetrically provided with the equipment grooves 4 communicated with the arc-shaped grooves 2, the driving mechanism is installed in the equipment grooves 4, the smoking box 18 is controlled to stretch in the arc-shaped grooves 2 through the driving mechanism, and the function of stretching and stabilizing is achieved.

As shown in fig. 2, 5, 7, actuating mechanism contains bevel gear 5, first servo motor 6 and mount pad 7, first servo motor 6 is installed on mount pad 7, mount pad 7 is installed in equipment groove 4, the output of first servo motor 6 has bevel gear 5 through the coupling joint, bevel gear 5 one side stretches into in the arc wall 2 with the meshing installation of arc tooth group 27, drive bevel gear 5 through first servo motor 6 and rotate, bevel gear 5 drives arc tooth group 27 and drives the flexible rotation of 18 arcs of smoking box.

As shown in fig. 12 and 13, an intercepting groove 24 is provided on the smoke box 18 above the inner side of the smoke suction inlet 19, two ends of the intercepting groove 24 are communicated with the arc-shaped guiding groove 22 provided on the arc-shaped surface of the inner side of the smoke box 18, the intercepting groove 24 and the arc-shaped guiding groove 22 are provided to prevent oil drops separated from the inner side surface of the smoke suction inlet 19 from dripping to the outer cooking bench, and the oil drops are collected by the arc-shaped guiding groove 22 to be convenient for drainage.

As shown in fig. 8 and 13, the top of the intercepting groove 24 is a slope surface for facilitating the inflow of oil droplets, the bottom of the intercepting groove 24 is an inclined surface towards the arc-shaped guiding grooves 22 at the two ends, and the slope surface and the inclined surface are arranged to increase the smoothness of the collected flow of the oil droplets.

As shown in fig. 10 and 12, a bayonet 21 is provided at the top of the smoking box 18, a fixture block 30 is provided at the bottom of the cover plate 28, the fixture block 30 is inserted into the bayonet 21 when the cover plate 28 is installed at the top of the smoking box 18, the stability of installing the cover plate 28 is increased by inserting the fixture block 30 into the bayonet 21, and meanwhile, the assembly and disassembly are convenient, and a sealing washer can be added for increasing the sealing performance.

As shown in fig. 2, a control assembly 33 for controlling the self-cleaning type oil-gas separation structure and the driving mechanism is installed at one side of the side suction type box 1, and the control assembly 33 is installed at one side of the side suction type box 1 to facilitate the operation of personnel.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a flexible lampblack absorber of exhaust port automatic distributed conversion, includes side suction formula box (1) and smoke box (18), its characterized in that:

an arc-shaped groove (2) with an upward opening is formed in the side-draft type box body (1), meanwhile, the top of the arc-shaped groove (2) is connected with a smoke suction port (3) formed in the top and one side of the side-draft type box body (1), an oil collecting box (9) is installed at the bottom of the arc-shaped groove (2), the top of one side of the oil collecting box (9) is communicated with a self-cleaning type oil-gas separation structure installed in the side-draft type box body (1), and one side of the self-cleaning type oil-gas separation structure is communicated with a fan set (16) installed on the side of the side-draft type box body (1);

the bottom of the smoking box body (18) is arranged in the arc-shaped groove (2), and driving mechanisms for controlling the stretching of the smoking box body (18) are symmetrically arranged on two sides above the side-suction type box body (1);

the smoke exhaust ventilator is characterized in that an arc-shaped smoke track (20) penetrating through the upper end and the lower end of the smoke exhaust ventilator is arranged in the smoke exhaust ventilator (18), an arc-shaped splitter plate (31) dividing the arc-shaped smoke track (20) into two parts is slidably mounted on the smoke exhaust ventilator (18) through an arc-shaped positioning groove (23), a plurality of groups of turbulence adsorption plates (32) which are wavy from bottom to top and have gradually reduced wave arc-shaped radiuses are symmetrically mounted on two sides of the arc-shaped splitter plate (31), a plurality of groups of oil smoke suction inlets (19) communicated with the arc-shaped smoke track (20) are uniformly arranged on one side surface of the smoke exhaust ventilator (3) close to the smoke exhaust port (3) in front of the turbulence adsorption plates (32), and meanwhile, sealing plates (25) which are close to the front half parts of the bottoms of the arc-shaped smoke track (20) are mounted at the bottoms of the smoke exhaust ventilator (18) between the turbulence adsorption plates (32) and the oil smoke suction inlets (19), be equipped with a plurality of orientations on shrouding (25) oil leakage hole (2501) of gathering oil box (9), apron (28) are installed at smoking box body (18) top, apron (28) bottom will be around through being equipped with recess (29) arc flue gas track (20) intercommunication.

2. The range hood with the automatically distributed smoke exhaust port capable of being converted and stretched according to claim 1, wherein the bottom of the arc-shaped groove (2) is communicated with a first installation groove (8) with an opening towards one side surface of the side suction type box body (1), and the oil collecting box (9) is installed in the first installation groove (8).

3. The range hood with the automatically distributed smoke exhaust port capable of being converted and stretched according to claim 2, wherein one side of the top of the first installation groove (8) is communicated with a second installation groove (10) with an opening facing one side of the side suction type box body (1), and the self-cleaning type oil-gas separation structure is installed in the second installation groove (10).

4. The range hood with the automatically distributed smoke exhaust port capable of being converted and stretched according to claim 3, wherein the self-cleaning type oil-gas separation structure comprises a plurality of groups of cleaning nozzles (11), an oil-smoke separation filter screen (12), an injection connecting pipe (13) and a liquid discharge pipe (14), the cleaning nozzles (11) are arranged at the top in the second installation groove (10), the oil-smoke separation filter screen (12) is arranged at the middle in the second installation groove (10), the inner side end of the injection connecting pipe (13) is communicated with the cleaning nozzles (11), the inner side end of the liquid discharge pipe (14) is communicated with the bottom in the second installation groove (10), an exhaust port (15) is arranged at one side of the side-suction type box body (1) between the oil-smoke separation filter screen (12) and the liquid discharge pipe (14), and the injection connecting pipe (13) is connected to a liquid supply system at the outer side, the drain pipe (14) is inserted into the outer sewage drainage pipeline.

5. The range hood with the automatically distributed smoke exhaust port capable of being converted into the telescopic range hood according to claim 4, wherein the exhaust port (15) is communicated with the fan unit (16) on the outer side, and an outer exhaust pipe (17) is connected to the fan unit (16).

6. The range hood with the automatically distributed smoke exhaust port capable of converting expansion and contraction according to claim 1, wherein arc-shaped toothed plate grooves (26) are symmetrically formed in two sides of the smoke exhaust box body (18), arc-shaped toothed groups (27) contained by the driving mechanism are installed in the toothed plate grooves (26), equipment grooves (4) communicated with the arc-shaped grooves (2) are symmetrically formed in two sides above the side suction type box body (1), and the driving mechanism is installed in the equipment grooves (4).

7. The range hood with the automatically distributed smoke exhaust port capable of converting expansion and contraction according to claim 6, wherein the driving mechanism comprises a bevel gear (5), a first servo motor (6) and a mounting seat (7), the first servo motor (6) is mounted on the mounting seat (7), the mounting seat (7) is mounted in the equipment groove (4), the output end of the first servo motor (6) is connected with the bevel gear (5) through a coupler, and one side of the bevel gear (5) extends into the arc-shaped groove (2) and is meshed with the arc-shaped tooth group (27).

8. The range hood with the automatically distributed smoke exhaust port capable of converting stretching and retracting according to claim 1, wherein a cut-off groove (24) is formed in the smoke exhaust box body (18) above the inner side of the smoke exhaust inlet (19), and two ends of the cut-off groove (24) are communicated with arc-shaped guide grooves (22) formed in the arc-shaped surface of the inner side of the smoke exhaust box body (18).

9. The range hood with the automatically distributed and converted telescopic smoke exhaust port according to claim 8, wherein the top of the cut-off groove (24) is provided with a slope facilitating the inflow of oil drops, and the bottom of the cut-off groove (24) is provided with an inclined plane facing the arc-shaped guide grooves (22) at two ends.

10. The range hood with the automatically distributed smoke exhaust port capable of converting extension and retraction according to claim 1, wherein a bayonet (21) is formed in the top of the smoke exhaust box body (18), a clamping block (30) is formed in the bottom of the cover plate (28), and the clamping block (30) is inserted into the bayonet (21) when the cover plate (28) is installed on the top of the smoke exhaust box body (18); and a control assembly (33) for controlling the self-cleaning oil-gas separation structure and the driving mechanism is arranged on one side of the side-suction type box body (1).

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