CN211822594U - Smoke collecting hood assembly and range hood - Google Patents

Abstract

The utility model relates to a kitchen utensil technical field provides collection petticoat pipe subassembly and range hood. The collection petticoat pipe subassembly includes collection petticoat pipe body and guide plate, and the guide plate is installed in the air intake of collection petticoat pipe body, and collection petticoat pipe subassembly still includes: the filter screen assembly is arranged at the installation notch of the guide plate and comprises an outer filter screen and a rotary filter screen, and the rotary filter screen is rotatably connected to the lee side of the outer filter screen; the side wall of the mounting notch is configured with an oil guide groove located at the periphery of the rotary filter screen. The smoke collecting hood assembly preliminarily filters the oil smoke through the outer layer filter screen, the preliminarily filtered oil smoke passes through the rotary filter screen which continuously rotates, and the rotary filter screen continuously intercepts oil drops in the oil smoke; the oil fume is subjected to double filtration, and the oil-fat separation degree is improved. And, because be provided with in the periphery of rotary filter screen and lead the oil groove, and then oil on the rotary filter screen can get into and lead the oil groove under centrifugal action to discharge through leading the oil groove, and then avoid oil to drip directly on the top of a kitchen range or get into fan assembly.

Description

Smoke collecting hood assembly and range hood

Technical Field

The utility model relates to a kitchen utensil technical field especially relates to collection petticoat pipe subassembly and range hood.

Background

The range hood, also called as fume exhauster, is a kitchen appliance for purifying kitchen environment. The range hood is arranged above a kitchen stove, and can rapidly exhaust waste gas generated by the combustion of the stove and oil smoke generated in the cooking process, discharge the waste gas to the outside, reduce pollution and purify air.

The oil separation of the existing range hood is realized by filtering and condensing through a metal filter screen, the metal filter screen and a condensing plate are arranged at an air inlet of the range hood, and in order to reduce wind resistance and keep enough air inlet area, the mesh of the metal filter screen is large, and the oil smoke directly passes through the holes, so that the oil smoke filtering efficiency is low. When the aperture is large, most of the oil fume still enters the range hood, particularly enters a fan system, and a series of problems are caused by the increase of the oil accumulation for a long time; and partial oil drops in the range hood can directly drop on the kitchen range top.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a collection petticoat pipe subassembly, its oil smoke filtration efficiency is higher to can avoid oil to drip directly on the kitchen mesa.

The utility model also provides a range hood.

According to the utility model discloses collection petticoat pipe subassembly of first aspect embodiment, including collection petticoat pipe body and guide plate, the guide plate install in the air intake of collection petticoat pipe body, collection petticoat pipe subassembly still includes:

the filter screen assembly is arranged at the installation notch of the guide plate and comprises an outer layer filter screen and a rotary filter screen, and the rotary filter screen is rotatably connected to the lee side of the outer layer filter screen;

the lateral wall of installation breach is constructed and is located rotatory filter screen outlying oil groove of leading.

According to the utility model discloses an embodiment, lead the oil groove and be cyclic annular.

According to an embodiment of the present invention, the edge of the outer screen is in engagement with the peripheral region of the mounting notch.

According to the utility model discloses an embodiment, the edge is formed with dodges the breach, peripheral zone be formed with the fitting surface and with the buckle on the wrong layer of fitting surface, outer filter screen switches between unclamping position and chucking position: in the release position, the avoiding notch corresponds to the buckle; in the clamping position, the avoiding notch is staggered with the buckle, and the edge is clamped between the assembling surface and the buckle.

According to the utility model discloses an embodiment, rotary filter screen pass through the bearing install in outer filter screen, the windward side of outer filter screen corresponds the position of bearing is provided with the protection casing.

According to the utility model discloses an embodiment, the bottom of guide plate is provided with the oil cup.

According to the utility model discloses an embodiment, rotary screen includes:

the fan blades are arranged at intervals along the rotating circumferential direction of the rotating filter screen, and all incline towards the same side;

each filter screen body is arranged between two adjacent fan blades;

each filter screen body is respectively connected with two adjacent fan blades.

According to one embodiment of the present invention, the rotary screen has a disk shape extending horizontally outward from a center of rotation of the rotary screen,

alternatively, the first and second electrodes may be,

the rotary filter screen is in an inverted cone shape which is inclined from bottom to top from the rotating center of the rotary filter screen,

alternatively, the first and second electrodes may be,

the rotary filter screen is in a regular cone shape with the rotation center of the rotary filter screen inclined from top to bottom.

According to an embodiment of the present invention, the outer screen is integrally recessed and formed with a cavity facing the rotary screen.

According to the smoke collecting hood assembly provided by the embodiment of the utility model, the oil smoke is primarily filtered through the outer layer filter screen, the oil smoke after primary filtering passes through the continuously rotating rotary filter screen, and the oil drops in the oil smoke are continuously intercepted by the rotary filter screen; the oil fume is subjected to double filtration, and the oil-fat separation degree is improved. And because the periphery of the rotary filter screen is provided with the oil guide groove, oil drops on the rotary filter screen can enter the oil guide groove under the centrifugal action and are discharged through the oil guide groove, and the oil drops are prevented from directly dropping on a cooking bench or entering a fan assembly of the range hood.

According to the utility model discloses range hood of second aspect embodiment, including the fan subassembly, the fan subassembly includes the fan dustcoat, range hood still includes above-mentioned collection petticoat pipe subassembly, the suction opening of fan dustcoat with the air exit intercommunication of collection petticoat pipe body.

According to the utility model discloses range hood, it includes above-mentioned collection petticoat pipe subassembly, consequently has all technological effects of above-mentioned collection petticoat pipe subassembly, and the no longer repeated description is here.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a range hood provided by an embodiment of the present invention;

fig. 2 is a schematic structural view of the range hood according to the embodiment of the present invention when the front cover is opened;

fig. 3 is a schematic view of a filter screen with a front side of a baffle and an outer layer according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a filter screen with a rear side of a baffle and an outer layer according to an embodiment of the present invention;

fig. 5 is a schematic view of an internal structure of a range hood provided by an embodiment of the present invention;

fig. 6 is a schematic view of an assembly relationship between a deflector and an outer screen provided by an embodiment of the present invention;

fig. 7 is a schematic structural view of a buckle on a deflector provided by an embodiment of the present invention;

fig. 8 is a schematic structural view of an avoiding notch on an outer layer filter screen according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of an outer screen according to an embodiment of the present invention;

fig. 10 is an illustration of an outer screen assembly according to an embodiment of the present invention in a clamping position;

FIG. 11 is a schematic view of an embodiment of the present invention illustrating the installation of an outer screen in a released position;

FIG. 12 is a schematic view of the assembly relationship between a rotary screen and an outer screen provided in the practice of the present invention;

fig. 13 is a schematic structural view of a rotary screen according to the present invention;

reference numerals:

1: installing a notch; 2: a front cover plate; 3: an oil cup; 4: a fan assembly; 5: a baffle; 9: an outer layer filter screen; 10: rotating the filter screen; 101: a fan blade; 102: a filter screen body; 11: an oil guide groove; 13: a bearing; 14: a protective cover; 16: buckling; 17: avoiding the notch; 18: and (7) assembling surfaces.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

According to the utility model discloses collection petticoat pipe subassembly, please refer to fig. 1 to 5, including collection petticoat pipe body and guide plate 5, guide plate 5 is installed in the air intake of collection petticoat pipe body. The smoke collecting hood assembly further comprises a filter screen assembly, the filter screen assembly is mounted at the mounting notch 1 of the guide plate 5 and comprises an outer layer filter screen 9 and a rotary filter screen 10, and the rotary filter screen 10 is rotatably connected to the leeward side of the outer layer filter screen 9; the side walls of the mounting recess 1 are configured with oil guide grooves 11 located at the periphery of the rotary screen 10.

The fume collecting hood assembly preliminarily filters fume through an outer filter screen 9, the preliminarily filtered fume passes through a rotary filter screen 10 which continuously rotates, and oil drops in the fume are continuously intercepted by the rotary filter screen 10; the oil fume is subjected to double filtration, and the oil-fat separation degree is improved. Moreover, because the oil guide groove 11 is formed in the periphery of the rotary filter screen 10, oil drops on the rotary filter screen 10 under the centrifugal action can enter the oil guide groove 11 and be discharged through the oil guide groove 11, and the oil drops are prevented from directly dropping on a cooking bench or entering the fan assembly 4 of the range hood.

Referring to fig. 1 and 2, a front cover plate 2 is further disposed at an air inlet of the smoke collecting cover body. When the range hood does not work, the front cover plate 2 closes the air inlet and shields the guide plate 5, so that the cleanness of the guide plate 5 can be ensured. When the range hood works, the front cover plate 2 is opened, the guide plate 5 is exposed, and the oil smoke enters the smoke collecting hood body through the guide plate 5.

In fig. 1, the front cover plate 2 is a split structure and comprises a plurality of cover bodies, and then the cover bodies are opened towards different directions, so that the required activity space of the front cover plate 2 is saved, and the guide plate 5 is exposed to the outside to the maximum extent, so that the guide effect of the guide plate 5 is ensured. Of course, the front cover 2 may not be provided, and when the front cover 2 is provided, the structure thereof is not limited by the example herein.

In addition, it is found from fig. 2 that two installation notches 1 are formed on the flow guide plate 5, and then the number of the filter screen assemblies is also two, and the two installation notches 1 are respectively arranged. It is clear that the number of mounting notches 1 and screen assemblies is not limited by the examples herein.

In fig. 3 and 4, the oil guiding groove 11 is annular, and during the rotation of the rotary screen 10, oil drops enter the oil guiding groove 11 from the edge of the rotary screen 10 and are collected under the centrifugal force. With reference to fig. 2 to 4, since the oil guiding groove 11 is disposed in the guiding plate 5 in an inclined manner, oil drops in the oil guiding groove 11 will flow to the lowest potential position of the oil guiding groove 11 along the inner wall of the oil guiding groove 11.

It should be noted that, in fig. 3 and 4, the oil guiding groove 11 is circular, and then the edge of the rotary screen 10 may be matched with the oil guiding groove 11 as much as possible, so that no matter what angle the rotary screen 10 rotates, oil drops of the rotary screen 10 may enter the oil guiding groove 11 under the action of centrifugal force. Of course, the oil guide groove 11 may have other ring shapes, such as a rectangular ring shape, a hexagonal ring shape, and the like.

It should be noted that the oil guiding groove 11 may be located on the outer periphery of the outer layer screen 9 in addition to the outer periphery of the rotary screen 10, and oil droplets on the outer layer screen 9 may also drop into the oil guiding groove 11.

In the process of filtering oil smoke for a long time, grease is easy to accumulate on the surface of the filter screen assembly, so that the mesh area is reduced, and the performance of the range hood is affected, and the filter screen assembly needs to be detached and washed by a user regularly. In order to facilitate the disassembly and washing of the filter screen assembly, the edge of the outer layer filter screen 9 is clamped with the peripheral area of the installation notch 1.

In one embodiment, see fig. 6 to 11, the edge is formed with an escape notch 17, the peripheral area is formed with a mounting surface 18 (the mounting surface 18 in fig. 11 is a perspective view, and the mounting surface 18 on the deflector 5 is actually covered by the outer screen 9) and a snap 16 staggered from the mounting surface 18, the outer screen 9 is switched between a release position and a clamping position: in the release position, the avoiding notch 17 corresponds to the buckle 16; in the clamping position, the relief notch 17 is offset from the catch 16 and the edge is clamped between the mounting surface 18 and the catch 16.

The expression "the assembling surface 18 and the snap 16 staggered from the assembling surface 18 are formed in the peripheral region" indicates that the snap 16 is located at a position outside the assembling surface 18, and further, when assembling, if the relief notch 17 and the snap 16 do not correspond, the snap 16 will prevent the edge of the outer screen 9 from fitting the assembling surface 18. Of course, the mounting surface 18 may have any shape, as long as it matches the edge of the outer screen 9 so that the edge of the outer screen 9 can be fitted to the mounting surface 18.

Of course, the edge may also be formed with an assembly surface and a buckle staggered with the assembly surface, and the peripheral region may be formed with an avoidance notch. At this point, the mounting face of the rim and the peripheral region are mated so that the peripheral region near the mounting notch can be attached to the mounting face of the outer screen. In this same case, the outer screen is switched between a release position and a clamping position: at the release position, the avoiding notch corresponds to the buckle; in the clamping position, the avoiding notch is staggered with the buckle, and the edge is clamped between the assembling surface and the buckle.

In one embodiment, referring to fig. 6 to 11, the number of the fasteners 16 is plural, and the fasteners are uniformly distributed along the circumferential direction of the deflector 5 on the rotary screen 10; similarly, the number and the distribution positions of the avoiding notches 17 correspond to the buckles 16 and are uniformly distributed on the periphery of the outer-layer filter screen 9.

Referring to fig. 6 to 11, the buckle 16 is disposed on the deflector 5, and the avoiding notch 17 is disposed on the outer layer filter screen 9. Furthermore, the guide plate 5 is provided with a mounting surface 18, and the outer filter screen 9 rotates along the mounting surface 18 and is switched between a clamping position and a releasing position. In the clamping position, see fig. 10, the catch 16 is offset from the relief recess 17, so that the outer screen 9 is clamped between the mounting surface 18 and the catch 16. Referring to fig. 11, in the release position, the catch 16 is located opposite the relief notch 17, so that the outer screen 9 can be removed from between the mounting surface 18 and the catch 16.

With reference to fig. 6 to 11, the outer screen 9 is mounted to the deflector 5 and the outer screen 9 is rotated such that the edge of the outer screen 9 is captured between the catch 16 and the mounting surface 18, e.g. by rotating the outer screen 9 in the direction of the arrow in fig. 6, to secure the outer screen 9. Similarly, on the basis that the outer filter screen 9 is fixed, the outer filter screen 9 is rotated, so that the buckle 16 corresponds to the avoiding notch 17, and the outer filter screen 9 can be detached.

In one embodiment, when the rotary filter screen 10 is rotated to any position, the meshes of the outer filter screen 9 and the rotary filter screen 10 are staggered, so as to increase the collision probability of the filter screen assembly with oil smoke.

Referring to fig. 12, the rotary screen 10 is mounted on the outer screen 9 through a bearing 13, and a protective cover 14 is disposed on the windward side of the outer screen 9 corresponding to the bearing 13. Through the setting of protection casing 14, can play the guard action to the bearing, avoid direct and bearing contact such as oil smoke, dust, guarantee bearing operational reliability and life. In one embodiment, the shield 14 is secured to the baffle 5 by a plurality of pins to facilitate removal of the shield 14.

In one embodiment, the outer screen 9 is formed with a mounting platform having a circular hole, the mounting shaft is connected to the bearing 13 after passing through the circular hole, and the rotary screen 10 is fixed to the bearing 13. The rotary screen 10 is free to rotate about the mounting shaft by the bearings 13. After the oil smoke is preliminarily filtered by the outer layer filter screen 9, the oil smoke passes through the rotary filter screen 10 which rotates continuously, edges between the through holes on the surface of the rotary filter screen 10 continuously cut the oil smoke, and oil drops in the oil smoke are intercepted. After the rotary filter screen 10 intercepts the oil smoke, oil drops on the rotary filter screen 10 are thrown out along the surface of the rotary filter screen 10.

Referring to fig. 13, the rotary screen 10 includes a plurality of blades 101 and a plurality of screen bodies 102. The plurality of fan blades 101 are arranged at intervals along the rotating circumferential direction of the rotating filter screen 10, and the plurality of fan blades 101 are inclined towards the same side; each filter screen body 102 is arranged between two adjacent fan blades 101.

It will be appreciated that the surface of the screen body 102 is provided with a plurality of openings. The range hood generates upward suction wind, part of the suction wind directly passes through the meshes of the filter screen body 102 and continues to rise, and part of the suction wind blows on the windward side of each fan blade 101 to push all the fan blades 101 to rotate towards the same direction, such as anticlockwise or along the direction of a pointer, so as to drive the whole rotary filter screen 10 to automatically rotate. It should be noted that the rotation direction of the rotary filter screen 10 can be adjusted by changing the inclination direction of the fan blades 101.

In one embodiment, the fan blades 101 are similar to fan blades, and the number of the fan blades 101 is 4-18, so as to ensure the air inlet area and the rotation speed.

In one embodiment, each filter screen body 102 is connected to two adjacent fan blades 101, so that a continuous screen surface is formed in the rotation circumferential direction of the rotary filter screen 10, and the rotary filter screen 10 is high in overall strength and not easy to deform; and the surface area of the filter screen body 102 can be increased, and the filtering effect is enhanced.

According to the smoke collecting hood assembly provided by the embodiment of the utility model, the oil smoke passes through the continuously rotating filter screen body 102, and the edges between the meshes of the filter screen body 102 continuously cut the oil smoke to intercept oil drops in the oil smoke; after the filter screen body 102 intercepts the oil smoke, oil drops on the filter screen body 102 are thrown out towards the lower sides of the periphery under the action of centrifugal force generated by rotation; the grease in the oil smoke which continuously rises through the filter screen body 102 is reduced. The oil separation degree is improved by the circulation.

In one embodiment, the surface of the rotary screen 10 may be a disk shape extending horizontally along the circumference of the connection sleeve, and the disk-shaped rotary screen 10 may be selected for the case of installation on a plane or a platform and the installation space is critical.

In another embodiment of the present invention, the rotary filter screen 10 is a forward cone inclined from top to bottom from the center of rotation of the rotary filter screen 10, and is set to a forward cone shape, which can increase the area of the filter screen body 102, and can make the separated grease slide down along the forward cone surface by itself, and drip into the oil guiding groove 11. In addition, the rotary filter screen 10 is set to be in the shape of a regular cone, so that the surface area of the rotary filter screen 10 can be increased in the same installation space, the area of the filter screen body 102 can be increased, the number of meshes of the filter screen body 102 is increased, that is, the aperture ratio is increased, the probability of collision with oil smoke is increased, and the oil-fat separation degree is further increased. In addition, the rotary filter screen 10 is arranged to be in a forward conical shape, and can be matched with a mounting part which is also in a forward conical shape or a forward frustum shape, so that the structure is compact, and the mounting space is saved. Of course, the size of the taper can be specifically selected according to needs.

The utility model discloses a in another embodiment, rotary screen 10's surface can be the back taper along rotary screen 10's rotation center tilt up, and is similar with setting to positive toper, sets to the back taper and equally can ensure rotary screen 10 in the same installation space, and the surface area increases to can increase filter screen body 102's area, make filter screen body 102's mesh quantity increase improve the percent opening promptly, thereby increase the probability with the oil smoke collision, further improved the grease separation degree. On the other hand, the installation part is arranged in an inverted cone shape and can be matched with the installation part which is also in the inverted cone shape or the inverted frustum shape, so that the structure is compact, and the installation space is saved. In addition, set up to the back taper, can make the grease after the separation can follow the back taper face and glide by oneself to in the grease collecting element of back taper below drips, for example can set up the collection container in the below of back taper rotary strainer 10. Likewise, the size of the back taper may be specifically selected as desired.

In one embodiment, referring to fig. 13, the blades 101 and the strainer body 102 are shaped like a fan gradually increasing from the rotation center of the rotary strainer 10 to the outside, so as to facilitate the spatial arrangement of the blades 101 and the strainer body 102 along the circumferential direction of the rotation center.

Referring to fig. 13, the surface of the filter screen body 102 is a corrugated surface having a continuous peak and a continuous valley, i.e. the peak and the valley are on the same continuous filter screen body 102, and it is understood that "having a continuous peak and a continuous valley" does not mean having a complete wavelength, and a half wavelength and a three-quarter wavelength may have a continuous peak and a continuous valley. The surface of the filter screen body 102 is provided with a wavy corrugated surface, so that the surface area of the filter screen body 102 can be increased, the opening rate is increased, and the grease separation degree is improved.

Specifically, the surface of the fan blade 101 is an inclined arc surface, and the streamline design can reduce the wind resistance and can be better matched with the filter screen body 102 with a corrugated surface.

The corrugated surface is connected with the inclined cambered surface in a smooth transition mode, so that a transition cambered surface is formed at the joint, the formation of sharp corners is avoided, the stress of the whole rotary filter screen 10 is uniform, and the wind resistance is small. Therefore, the rotary filter screen 10 is integrally formed into a wavy three-dimensional screen surface, the integral strength of the rotary filter screen 10 can be enhanced, and the effect of filtering and separating grease can be improved.

In one embodiment, in order to make the rotary filter screen 10 rotate more effectively, the included angle θ between the fan blades 101 and the horizontal plane may be 20 ° or more and 70 ° or less, and preferably 45 ° or less, so as to achieve the optimal structural design and use effect.

It should be further explained that the contact surface of the fan blade 101 with the wind, i.e. the windward surface, is an outward convex arc surface, which can further reduce the wind resistance.

In a specific embodiment of the present invention, the mesh on the filter screen body 102 can be regular hexagon, diamond, bar or round, etc., the regular hexagon has a large mesh opening rate, a small wind resistance and a high strength, but the retention rate is not high than that of the bar mesh, and the bar mesh is not easy to clean; the strip-shaped meshes have high retention rate and good grease flowing effect, are convenient to clean, but have no high opening rate than regular hexagonal meshes; the air inlet area of the rhombic meshes is large, the circular meshes are convenient to process, but the opening rate is smaller than that of regular hexagonal meshes or strip-shaped meshes. Therefore, different mesh shapes can be selected according to actual requirements. Of course, the mesh shape is not limited to the regular hexagon, diamond, bar, or circle, and is described only by way of example. Other shapes of mesh openings are also within the scope of the present invention.

The rotary filter screen 10 can rotate automatically under the action of suction wind, does not need to be driven by a motor, saves cost, saves the internal space of the range hood, and increases the arrangement space of other components. Of course, in order to control the rotation of the rotary filter screen 10 individually, the motor may be used to drive the rotary filter screen 10 to rotate, and such an arrangement is also within the scope of the present invention.

In one embodiment, the outer screen 9 is integrally recessed and formed with a cavity facing the rotary screen 10, see again fig. 12. Due to the overall depression of the outer screen 9, a tension chamber is formed between the outer screen 9 and the rotary screen 10. Wherein the presence of the stretching chamber reduces the wind resistance of the outer screen 9.

In one embodiment, the fume collecting hood assembly further comprises an oil cup 3. Referring to fig. 1 and 2, the oil cup 3 is located at the bottom of the guide plate 5, and oil drops enter the oil cup 3 along the guide plate 5 to complete the collection of the oil drops, so as to prevent the oil drops from dropping to the cooking bench.

Wherein, the outer layer filter screen 9 and the rotary filter screen 10 in the filter screen component can be both metal wire dense screens and can also be filter screens in other forms.

According to the embodiment of the utility model provides a range hood, including fan subassembly 4 and above-mentioned collection petticoat pipe subassembly, fan subassembly 4 includes the fan dustcoat, and the suction opening of fan dustcoat communicates with the air exit of collection petticoat pipe body.

The oil smoke generated by cooking rises and then contacts the condensing plate to be condensed, passes through the through holes on the filter screen assembly to enter the fan assembly 4, and is finally discharged into the smoke tube from the check valve. When the oil smoke passes through the through holes of the filter screen assembly, water and oil drops in the oil smoke continuously collide with the filter screen assembly and are finally intercepted by the filter screen assembly, and therefore oil discharge can be reduced.

Referring to fig. 5, the fan assembly 4 includes a volute, and in conjunction with fig. 1 to 4, the rotary screen 10 may be connected to the volute to ensure that the rotary screen 10 is located at the installation gap 1 of the deflector 5.

It should be noted that the range hood according to the embodiment of the present invention can be a side suction machine as shown in fig. 1 to 5, or a T-shaped machine.

The above embodiments are merely illustrative, and not restrictive, of the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of the technical solutions should be covered by the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a collection petticoat pipe subassembly, includes collection petticoat pipe body and guide plate, the guide plate install in the air intake of collection petticoat pipe body, its characterized in that, collection petticoat pipe subassembly still includes:

the filter screen assembly is arranged at the installation notch of the guide plate and comprises an outer layer filter screen and a rotary filter screen, and the rotary filter screen is rotatably connected to the lee side of the outer layer filter screen;

the lateral wall of installation breach is constructed and is located rotatory filter screen outlying oil groove of leading.

2. A smoke collection cage assembly according to claim 1 wherein said oil drainage groove is annular.

3. A smoke collection cage assembly according to claim 1 wherein an edge of said outer screen snaps into engagement with a peripheral region of said mounting notch.

4. A smoke collecting hood assembly according to claim 3 wherein said edge is formed with an escape notch, said peripheral region is formed with a mounting face and a catch staggered from said mounting face, said outer screen being switchable between a release position and a catch position: in the release position, the avoiding notch corresponds to the buckle; in the clamping position, the avoiding notch is staggered with the buckle, and the edge is clamped between the assembling surface and the buckle.

5. A smoke collecting hood assembly according to claim 1, wherein the rotary filter screen is mounted to the outer filter screen through a bearing, and a protective cover is provided on the windward side of the outer filter screen corresponding to the bearing.

6. A smoke collection cage assembly according to claim 1 wherein the bottom of said deflector is provided with an oil cup.

7. A smoke collecting hood assembly according to any one of claims 1 to 6, wherein said rotary screen comprises:

the fan blades are arranged at intervals along the rotating circumferential direction of the rotating filter screen, and all incline towards the same side;

each filter screen body is arranged between two adjacent fan blades;

each filter screen body is respectively connected with two adjacent fan blades.

8. A smoke collection cage assembly according to claim 7 wherein said spin screen is disc shaped extending horizontally outward from a center of rotation of said spin screen,

alternatively, the first and second electrodes may be,

the rotary filter screen is in an inverted cone shape which is inclined from bottom to top from the rotating center of the rotary filter screen,

alternatively, the first and second electrodes may be,

the rotary filter screen is in a regular cone shape with the rotation center of the rotary filter screen inclined from top to bottom.

9. A smoke collecting cage assembly according to claim 7 wherein said outer screen is integrally recessed and formed with a concavity directed toward said rotary screen.

10. A range hood, comprising a fan assembly, wherein the fan assembly comprises a fan housing, and the range hood further comprises the smoke collecting hood assembly of any one of claims 1 to 9, wherein the suction opening of the fan housing is communicated with the exhaust opening of the smoke collecting hood body.

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