CN211176971U - Filter screen subassembly and oil smoke purifier - Google Patents

Abstract

The utility model discloses a filter screen subassembly and fume purification device, the filter screen subassembly includes: the filter blade is detachably connected with the connecting part, the filter blade is arranged around the connecting part, and the filter blade is provided with a plurality of filter holes. The utility model discloses technical scheme can improve the separation effect to the grease.

Description

Filter screen subassembly and oil smoke purifier

Technical Field

The utility model relates to the field of household appliances, in particular to filter screen subassembly and oil smoke purifier.

Background

In order to separate grease in the oil smoke, the filter screen that generally adopts the flat form in present oil smoke purifier filters the oil smoke, generally, in order to promote the grease separation degree, some filter screen models adopt the form increase filter screen surface area of positive awl or back taper to promote the filter effect. However, such flat screens still have poor contact with grease, and therefore do not completely separate grease.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a filter screen subassembly aims at improving the separation effect to the grease.

In order to achieve the above object, the utility model provides a filter screen assembly includes:

a connecting portion; and

the filter blades are detachably connected with the connecting portion, the filter blades are arranged around the connecting portion, and a plurality of filter holes are formed in the filter blades.

The filter screen subassembly is rotatory constantly to collide the air current, makes particulate matter in the air current for example grease etc. by the filter blade interception, and this collision process can fully filter the air current, strengthens the filter effect. Filter blade and connecting portion detachable mode can be convenient for filter blade and demolish and wash.

Optionally, a slot is formed in the circumferential surface of the connecting portion, the filter blade includes a blade body and an insertion portion, the insertion portion is inserted into and matched with the slot, and the blade body is provided with a plurality of filter holes.

The filter blade can be conveniently detached by the insertion and matching mode.

Optionally, the connecting portion includes a rotating shaft, the filter blade extends in an axial direction of the rotating shaft, and a plurality of the filter blades are arranged in a circumferential direction of the rotating shaft; the circumferential surface of the rotating shaft is provided with the slot.

Through all setting up filter vane on a rotation axis for filter vane length direction homoenergetic connects the rotation axis, more is favorable to supporting filter vane. And filter vane and rotation axis are whole to be rectangular form for the lampblack absorber left and right sides direction all is covered by filter screen subassembly, has strengthened oil smoke filtering effect.

Optionally, the slot extends along an axial direction of the rotating shaft, and the slot penetrates at least one end surface of the rotating shaft to form a socket; the inserting part is inserted into the slot from the inserting port.

The filter blade can slide into the slot from the interface on the end face of the rotating shaft and can also slide out from the interface when being taken out, thereby greatly facilitating the assembly of the filter blade.

Optionally, the insertion slot has an insertion section and a limiting section which are distributed along a slot depth direction and are communicated with each other, the insertion section penetrates through the circumferential surface of the rotating shaft, and the slot width of the insertion section is smaller than the slot width of the limiting section in the circumferential direction of the rotating shaft; the inserting part comprises an inserting section and a connecting section connected with the blade body, the inserting section is inserted into the limiting section from the inserting port, and the width of the inserting section is smaller than or equal to the groove width of the limiting section and larger than the groove width of the inserting section.

The arrangement prevents the filter blade from being separated from the slot of the slot towards the circumferential surface of the rotating shaft.

Optionally, the filter screen assembly further comprises a stop member connected with the rotating shaft corresponding to the insertion port to limit the filter blade.

The stop prevents the filter blade from disengaging from the socket.

Optionally, the stop member is in inserting fit with the slot from the inserting port, and one end of the stop member abuts against the inserting portion to plug the slot at the end of the inserting portion.

So as to prevent oil smoke from dropping or gas from flowing into the insertion part.

Optionally, the stop member comprises a stop body, a clamping block and a connecting rib, and the connecting rib is respectively connected with the clamping block and the stop body, so that an installation gap is formed between the clamping block and the stop body; the end face of the rotating shaft with the inserting port is provided with a clamping groove; the backstop body with the slot cooperation of pegging graft, the joint piece with the draw-in groove joint.

The joint piece with the draw-in groove joint to realize the fixed of stop part and rotation axis, stop part restriction like this filters the blade and breaks away from the interface.

Optionally, the stopper body includes a substrate and a sealing protrusion disposed on a surface of the substrate, an end surface of the substrate is attached to an end surface of the insertion section of the insertion portion, and an end surface of the sealing protrusion is attached to an end surface of the connection section of the insertion portion.

The stop body and the sealing bulge form a T-shaped structure, so that the shape of the slot is better matched, and all parts of the slot are blocked.

Optionally, the connecting portion includes at least two support discs arranged oppositely, the support disc is provided with the slot, and the slot penetrates through the support disc along the axial direction of the support disc;

two ends of the filter blades are respectively arranged on the supporting disk, and the filter blades are arranged along the circumferential direction of the supporting disk.

Because the supporting disk sets up the tip at filter vane, consequently can avoid it to block filter vane business turn over wind, do benefit to the smooth and easy flow of air current.

Optionally, the filter blade includes an air guide portion and a filter portion distributed along a width direction of the filter blade, the filter portion is connected to the connecting portion, and the filter portion is provided with a plurality of filter holes.

The air guide part provides a stressed acting surface for air flow, and after the air flow passes through the filter screen assembly and is blocked by the plane of the air guide part of the filter blade, the air flow pushes the filter screen assembly to rotate.

The utility model also provides an oil fume purification device which is a range hood or an integrated stove; the oil smoke purifier includes:

a housing having an air duct; and

the filter screen assembly is rotatably arranged in the air duct.

Through set up the filter screen subassembly in fume purification device, the rotatory continuous collision flue gas of filter screen subassembly makes particulate matter in the flue gas for example grease etc. by filter vane interception, and this collision process can fully filter the flue gas, strengthens the filter effect, reduces the probability that the fan is polluted by the oil smoke.

Optionally, the inner surface of the outer shell is provided with a support rib, and the support rib is bent to form a mounting cavity for placing the end of the rotating shaft.

So, the rotation axis can directly be placed in the installation cavity, need not to adopt other structures to fix, has made things convenient for the dismouting of filter screen subassembly.

Optionally, the shell includes front panel and two curb plates of locating respectively the left and right sides of front panel, the front panel can open and close the wind channel, the internal surface of curb plate is equipped with the support rib, the installation cavity has opening forward.

The screen assembly can thus be removed directly forward after opening the front panel without the use of additional tools.

Optionally, the housing further has a smoke suction port and a smoke exhaust port, the air duct has an air inlet section and an air outlet section, the air inlet section is connected to the smoke suction port, and the air outlet section is connected to the smoke exhaust port; the air outlet section is provided with a fan; the filter screen assembly is arranged on the air inlet section.

Because set up the filter screen subassembly in the air inlet section, so can make the flue gas earlier through the filter screen subassembly after filtering, flow out again, consequently can prevent that the oil smoke from polluting the fan.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of a screen assembly according to the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic plan view of an end face of the rotating shaft of FIG. 1;

FIG. 4 is a schematic view of the filter blade of FIG. 1;

FIG. 5 is an enlarged view at B in FIG. 4;

FIG. 6 is a schematic view of the screen assembly of FIG. 1 from another perspective;

FIG. 7 is an enlarged view at C of FIG. 6;

fig. 8 is a schematic structural view of another embodiment of the screen assembly of the present invention;

FIG. 9 is a schematic view of the support disk of FIG. 8;

FIG. 10 is a schematic structural view of the lampblack purification device of the present invention;

FIG. 11 is a schematic view showing the internal structure of the fume purifying apparatus shown in FIG. 10;

fig. 12 is an exploded view of the fume cleaning device of fig. 11.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a filter screen subassembly, this filter screen subassembly can be used for fume purification device or other needs to carry out filterable equipment to gas or flue gas etc..

In the embodiment of the present invention, as shown in fig. 1, the filter screen assembly 10 includes a connecting portion (11 or 14) and a plurality of filter blades 12, the filter blades 12 are detachably connected to the connecting portion (11 or 14), the plurality of filter blades 12 are arranged around the connecting portion (11 or 14), and the filter blades 12 have a plurality of filter holes 1221 (shown in fig. 4).

Alternatively, the filter blade 12 is a flat plate-like structure. The filter blades 12 are provided with a plurality of filter holes 1221, so that the filter blades 12 form a structure similar to a screen mesh, and oil smoke particles in smoke can be effectively filtered. In consideration of the filtering effect and the strength, the filter blade 12 should be provided with as many filter holes 1221 as possible. And the filter holes 1221 are formed to reduce the weight of the filter blades 12, which facilitates the rotation of the filter screen assembly 10. The filter blade 12 may be a unitary plate with a plurality of filter holes 1221 formed therein, and the filter blade 12 may also be a metal mesh. Optionally, screen assembly 10 includes at least three of the filter blades 12, which is effective to ensure free rotation of screen assembly 10.

In the embodiment of the present invention, the filter blade 12 and the connecting portion (11 or 14) can be detachably connected, and the specific connection mode has multiple types, such as a snap connection, a screw connection, a plug connection, or a sliding connection. By means of the detachable connection, the filter blade 12 can be quickly and conveniently detached from the connecting part (11 or 14) for cleaning.

The utility model discloses in, the rotatory continuous collision cutting air current that collides of filter screen subassembly 10 makes the particulate matter in the air current for example grease etc. by filter vane 12 interception, and this collision process can fully filter the air current, strengthens the filter effect, reduces the probability that 40 systems of fan are polluted by the oil smoke. Filter blade and connecting portion detachable mode can be convenient for filter blade and demolish and wash.

Referring to fig. 4, in order to facilitate the airflow acting on the filter blade 12 to push the filter blade 12 to rotate, in an embodiment, the filter blade 12 includes an air guiding portion 121 and a filter portion 122 distributed along a width direction thereof, the filter portion 122 is connected to the connecting portion (11 or 14), and the filter portion 122 is provided with a plurality of filter holes 1221. Specifically, the side edge of the air guiding part 121 away from the filtering part 122 is a blade top edge, and the side edge of the filtering part 122 away from the air guiding part 121 is a blade root edge. The air guide part 121 and the filter part 122 are both strip-shaped plate-shaped structures, and the width of the air guide part 121 is smaller than that of the filter part 122, so that a larger area is ensured to be provided with more filter holes 1221, and smooth air flow is ensured. The air guide part 121 is not provided with the filter holes 1221, the air guide part 121 provides a force-bearing surface for the air flow, and when the air flow passes through the filter screen assembly 10 and is blocked by the plane of the air guide part 121 of the filter blade 12, the air flow pushes the filter screen assembly 10 to rotate. Then, the air flows toward the filter part 122 along the plane of the air guide part 121, and flows out of the filter holes 1221 of the filter part 122. Meanwhile, the air guide part 121 is arranged close to the outside, so that the air flow pushes the circular filter screen assembly 10 to the outside, which is beneficial to the rotation of the filter screen assembly 10.

Referring to fig. 2 to fig. 5, in an embodiment, the connecting portion (11 or 14) is provided with a slot 111, the filter blade 12 includes a blade body 123 and an insertion portion 124, the insertion portion 124 is inserted into and matched with the slot 111, the blade body 123 has a plurality of filter holes 1221, and the filter blade 12 is inserted into and matched with the connecting portion (11 or 14). This adopt grafting complex mode need not use the instrument can realize quick assembly disassembly. In other embodiments, the filter blade 12 may be connected to the connecting portion (11 or 14) by a screw, or the filter blade 12 may be snapped to the connecting portion (11 or 14) by a snap structure, etc.

The connection part (11 or 14) in the embodiment of the present invention has various forms, for example, in an embodiment, the connection part (11 or 14) includes a rotation shaft 11, the filter blade 12 extends in an axial direction of the rotation shaft 11, and a plurality of the filter blades 12 are arranged in a circumferential direction of the rotation shaft 11; the circumferential surface of the rotating shaft 11 is provided with the insertion groove 111.

Specifically, the filter blades 12 extend in the longitudinal direction of the rotary shaft 11, and the filter blades 12 extend in a long plate shape. The rotating shaft 11 is an elongated shaft body, and optionally, the rotation axis of the screen assembly 10 coincides with the axis of the rotating shaft 11. The plurality of filter blades 12 are arranged uniformly in the circumferential direction of the rotary shaft 11.

Specifically, the insertion groove 111 extends in the axial direction of the rotating shaft 11, and the insertion groove 111 penetrates at least one end surface of the rotating shaft 11 to form an insertion port 1113; the plug part 124 is inserted into the slot 111 from the plug port 1113. In this embodiment, the filter blade 12 can slide into the insertion slot 111 from the insertion opening 1113 on the end surface of the rotating shaft 11, and can also slide out from the insertion opening 1113 when taken out, so that the assembly of the filter blade 12 is greatly facilitated.

In order to prevent the filter blade 12 from being separated from the slot 111 toward the notch of the circumferential surface of the rotating shaft 11, in an embodiment, the slot 111 has an insertion section 1111 and a limiting section 1112 distributed and communicated in the slot depth direction, the insertion section 1111 penetrates the circumferential surface of the rotating shaft 11, the slot width B of the insertion section 1111 is smaller than the slot width B of the limiting section 1112 in the circumferential direction of the rotating shaft 11. the insertion part 124 includes an insertion section 1242 and a connection section 1241 connected to the blade body 123, the insertion section 1242 is inserted into the limiting section 1112 from the insertion port 1113, the width of the insertion section 1242 is smaller than or equal to the slot width B of the limiting section 1112 and is larger than the slot width B of the insertion section 1111, so that the insertion section 1242 can be limited in the limiting section 1112 without sliding to the insertion section 1111, thus preventing the insertion part 124 from being separated from the notch on the circumferential surface of the rotating shaft 11. alternatively, the slot 111 has a T-shaped cross section in the width direction, and the slot 124 has another cross-shaped cross section L in the width direction.

Referring to fig. 2, 6 and 7 again, in order to prevent the filter blade 12 from being separated from the socket 1113, in an embodiment, the filter screen assembly 10 further includes a stopper 13, and the stopper 13 is connected to the rotating shaft 11 corresponding to the socket 1113 to limit the filter blade 12. Alternatively, the stopper 13 is inserted into the insertion groove 111, so that it is not necessary to additionally provide another structure for fixing the stopper 13, and thus the installation can be simplified. In other embodiments, other structures, such as a slot 112 or a snap, may be disposed on the rotating shaft 11 for fixing the stopper 13. Furthermore, in order to prevent the filter blade 12 from being separated from the insertion opening 1113, the filter blade 12 and the insertion slot 111 may also be in an interference fit manner. Similarly, the stop member 13 and the slot 111 are also in interference fit.

In an embodiment, the stop member 13 is inserted into the slot 111 from the insertion opening 1113, and one end of the stop member 13 abuts against the insertion portion 124 to block the slot 111 at the end of the insertion portion 124, so as to prevent oil smoke from dropping or smoke from flowing into the insertion portion 124. In this embodiment, the specific meaning of the stopping member 13 blocking the slot 111 at the end of the insertion part 124 is that at least the stopping member 13 abuts against the whole end surface of the insertion part 124, that is, the stopping member 13 can block the slot 111 near the insertion part 124, and prevent the smoke from contacting the insertion part 124 from the insertion port 1113 and from the notches on the peripheral surface of the rotating shaft 11. In addition, the stop piece 13 can completely block the remaining slot 111 which is not matched with the insertion part 124, that is, the stop piece 13 and the insertion part 124 completely fill the slot 111, so as to prevent the slot 111 from contacting with oil smoke.

In one embodiment, the stopper 13 includes a stopper body 131, a clamping block 132 and a connecting rib 133, and the connecting rib 133 connects the clamping block 132 and the stopper body 131, respectively, so that an installation gap is formed between the clamping block 132 and the stopper body 131; a clamping groove 112 is arranged on the end face of the rotating shaft 11 with the inserting port 1113; the stopping body 131 is in plug fit with the slot 111, one end of the stopping body 131 abuts against the plug part 124 to plug the slot 111 at the end of the plug part 124, the clamping block 132 is clamped with the clamping groove 112, so that the stopping part 13 is fixed with the rotating shaft 11, and the stopping part 13 limits the filter blade 12 to be separated from the plug port 1113.

Specifically, the stopper body 131 includes a substrate 1311 and a sealing protrusion 1312 disposed on a surface of the substrate 1311, an end surface of the substrate 1311 is attached to an end surface of the insertion section 1242 of the insertion part 124, and an end surface of the sealing protrusion 1312 is attached to an end surface of the connection section 1241 of the insertion part 124. In this embodiment, the stopper body 131 and the sealing protrusion 1312 form a T-shaped structure, which better matches the shape of the slot 111 to plug each part of the slot 111.

In one embodiment, the sealing protrusion 1312 and the clamping block 132 are respectively disposed on two opposite sides of the substrate 1311 to avoid interference between the two, and the clamping groove 112 is more conveniently disposed at a position close to the axis of the rotating shaft 11 with a larger space, so that the clamping block 132 and the sealing protrusion 1312 are separately disposed on two opposite sides of the substrate 1311 to facilitate connection with the clamping groove 112.

In an embodiment, the plurality of filter blades 12 are radially distributed on the rotating shaft 11, and specifically, the filter blades 12 have a first side 125 and a second side 126 distributed along a width direction thereof, the first side 125 is connected to the rotating shaft 11, and the second side 126 is away from the rotating shaft 11. This structure can guarantee to arrange more filter blade 12 on rotation axis 11, increases filter area to also make and form the field angle between adjacent filter blade 12 and do benefit to the air current and enter into between two adjacent filter blade 12.

In addition, each filtering hole 1221 on the filtering vane 12 is located between two adjacent filtering holes 1221 on the adjacent filtering vane 12, so that the filtering holes 1221 of every two filtering vanes 12 form a mutually staggered characteristic, on one hand, the probability of collision with oil smoke can be increased, on the other hand, the surface area of the filtering vane 12 can be increased, the number of through holes on the surface of the filtering vane 12 is increased, and the oil-fat separation degree is improved.

The two ends, ends and end faces in the above embodiments refer to the two ends distributed along the length of the filter assembly.

As shown in fig. 8 and 9, in addition, in other embodiments, the connecting portion (11 or 14) may further include at least two supporting discs 14 disposed oppositely, the supporting disc 14 is opened with the slot 111, and the slot 111 penetrates through the supporting disc 14 along the axial direction of the supporting disc 14; two ends of the filter blade 12 are respectively mounted on the support plate 14, and the plurality of filter blades 12 are arranged along the circumferential direction of the support plate 14. Thus, both ends of the filter blade 12 are fixed, and the filter blade 12 can be effectively prevented from shaking when rotating. The utility model discloses in, a plurality of filter blade 12 are installed and are formed circular structure on supporting disk 11. In order to fix the support plate 14 and the filter blade 12 more firmly, a screw may be provided for connection therebetween.

The utility model discloses still provide an oil smoke purifier, oil smoke purifier is range hood or integrated kitchen, and to album dirt kitchen, this album dirt kitchen includes lampblack absorber and the kitchen body, and the lampblack absorber setting forms the collection dirt kitchen of integral type in kitchen body top, both combinations. Of course, the dust collecting range may also include one or more of a dishwasher, a sterilizer, or in an oven, etc.

In the embodiment of the present invention, as shown in fig. 10 and 11, the lampblack purification device includes a housing 20 and a fan 80, the housing 20 is provided with a smoke suction port 22 and a smoke exhaust port 27, and an air duct 21 is formed in the housing 20, and the air duct 21 communicates with the smoke suction port 22 and the smoke exhaust port 27. The air duct 21 has an air inlet section 211 and an air outlet section 212, the air inlet section 211 is connected with the smoke suction port, the air outlet section 212 is connected with the smoke exhaust port 27, and the fan 80 is arranged at the air outlet section 212. This fan 80 is centrifugal fan 80 for the wind pressure is bigger, and the oil absorption cigarette effect is better.

Specifically, the housing 20 includes a decorative cover and a smoke collecting cover, the decorative cover is hollow, optionally, the decorative cover is substantially square, a smoke outlet 27 is further provided at the top of the decorative cover, and a check valve is provided at the smoke outlet 27. Of course, the trim cover may also be cylindrical or irregularly shaped, etc. The smoke collecting cover is arranged below the decorative cover and is provided with a smoke suction port 22, and the cooked smoke is sucked into the air duct 21 from the smoke suction port 22 and is discharged from the smoke discharge port 27 under the action of the centrifugal fan 80. Specifically, the housing 20 further includes a front panel 23, the front panel 23 forming a part of the smoke collecting hood, and a smoke suction port 22 provided on the front panel 23.

The embodiment of the utility model provides an in, oil smoke purifier still includes filter screen subassembly 10, and filter screen subassembly 10 rotationally sets up in the wind channel 21. Optionally, screen assembly 10 may be rotatably disposed in the intake section. The utility model discloses oil smoke purifier's filter screen subassembly 10's concrete structure please refer to above-mentioned embodiment, because this oil smoke purifier has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, no longer gives unnecessary detail here.

In one embodiment, the filter screen assembly can be driven by a fan to rotate, the fan 80 drives the flue gas to move in the air duct, and the flue gas pushes the filter screen assembly 10 to rotate integrally. The filter screen component 10 does not need to be driven by a motor, can realize self-rotation only by being pushed by smoke, and is beneficial to the simplification of the structure and the reduction of the cost. In one embodiment, a power source can be separately provided to drive the filter screen assembly to rotate, for example, a motor is additionally arranged to drive the filter screen assembly to rotate, and the rotating stability can be ensured.

The utility model discloses in, through set up filter screen subassembly 10 in fume purification device, because filter screen subassembly can rotate simultaneously consequently when the flue gas flows through filter screen subassembly 10 from filtration pore 1221, filter screen subassembly 10 is rotatory constantly to collide the flue gas, makes the particulate matter in the flue gas for example grease etc. by filter screen subassembly 10 interception, and this collision process can fully filter the flue gas, strengthens the filter effect. Because the filter screen assembly 10 is arranged at the air inlet section 211, the smoke can be filtered before entering the fan 80, and therefore, the probability that the fan 80 is polluted by oil smoke can be reduced.

Referring to fig. 7, in an embodiment, the oil smoke purifying apparatus further includes a bearing 30, the rotating shaft 11 of the filter screen assembly 10 is fixed to an inner ring of the bearing 30, and an outer ring of the bearing 30 is disposed on the housing 20. By providing the bearing 30, self-rotation of the screen assembly 10 may be better assured.

Referring to fig. 12, in an embodiment, the inner surface of the housing 20 is provided with a supporting rib 241, and the supporting rib 241 is bent to form a mounting cavity 2411 for placing the end of the rotating shaft 11, so that the rotating shaft 11 can be directly placed in the mounting cavity 2411 without using other structures for fixing, thereby facilitating the assembly and disassembly of the filter screen assembly 10. In the embodiment where the bearing 30 is disposed at the end of the rotating shaft 11, the bearing 30 is disposed in the mounting cavity 2411, and the mounting cavity 2411 supports the bearing 30.

For the range hood, the housing 20 includes a front panel 23 and two side panels 24 respectively disposed at the left and right sides of the front panel 23, the inner surfaces of the side panels 24 are provided with the supporting ribs 241, and the filter screen assembly 10 extends along the left and right direction and is mounted on the two side panels 24. Installation cavity 2411 has opening forward, filter screen subassembly 10 rotates backward from the front, preceding panel and curb plate 24 swing joint to can open and close wind channel 21, when the front panel 23 was opened, make filter screen subassembly 10 expose outside, and because the opening of installation cavity 2411 that supplies bearing 30 to place is forward, consequently opening the front panel 23 after, can directly take out filter screen subassembly 10 forward, need not to adopt other instruments. Alternatively, the front panel 23 is rotatably connected, clamped or slidably connected with the side panel 24.

In an embodiment, a fan 40 is further disposed in the air duct 21, the screen assembly 10 is located below the fan 40, and the rotation axis of the screen assembly 10 is along the left-right direction. Specifically, the housing 20 includes a front panel 23 and a back panel 25 opposite to the front panel 23, the front panel 23 is provided with the smoking opening 22, the filter screen assembly 10 is disposed between the front panel 23 and the back panel 25, so as to ensure that smoke is filtered by the filter screen assembly 10 and then flows into the fan 40. In addition, filter screen assembly 10 sets up between front panel 23 and backplate 25, and the cavity that extends along left right direction that forms here does benefit to filter screen assembly 10 and extends about, and both match more in the shape, consequently can better adapt to filter screen assembly 10's setting to guarantee filter screen assembly 10 as far as possible and separate wind channel 21 for upper and lower two parts, the gaseous air that does not filter screen assembly 10 of significantly reducing runs to fan 40 promptly.

Alternatively, the axis of the fan 40 is in the front-rear direction, and the rear end of the fan 40 is the main air inlet, and the air flow flows into the centrifugal volute from the rear end of the fan 40. So the utility model discloses utilize the rearmounted matching of the smoking mouth 22 of downside and the main air intake of fan 40 among the technical scheme, reach the direct inline effect of directly inhaling, reduce the resistance of fan 40 air current that advances.

Optionally, the distance between the screen assembly 10 and the front panel 23 is less than the distance between the screen assembly 10 and the back panel 25. Therefore, most of the smoke runs to the rear side, and flows upwards from the rear side to the main air inlet of the fan 40, so that the direct-suction and direct-discharge effect is achieved.

In addition, the diameter of filter screen subassembly 10 is as big as possible, covers the width around the horizontal projection cross-section of wind channel 21, promptly filter screen subassembly 10 with distance between front panel 23 and filter screen subassembly 10 with distance between the backplate 25 is as little as possible, and it can to satisfy the required little clearance of filter screen subassembly 10 free rotation, makes filter screen subassembly 10 fully filter the oil smoke through the cross-section of wind channel 21. Optionally, the distance between the screen assembly 10 and the front panel 23 is greater than or equal to 10mm and less than or equal to 25 mm; and/or the distance between the screen assembly 10 and the back plate 25 is greater than 10mm and less than or equal to 30 mm. In particular, the distance between the sieve assembly 10 and the front panel 23 may be 10mm, 20mm or 25mm, etc.; the distance between the screen assembly 10 and the back plate 25 may be 15mm, 20mm or 30mm, etc. This allows the screen assembly 10 to maximize the amount of space between the front panel 23 and the back panel 25 while still providing the desired distance for the screen assembly 10.

The embodiment of the utility model provides an in the range hood's type can be side suction range hood, top suction range hood, side suction and top suction's hybrid range hood etc.. The side draw and top draw in this embodiment are defined relative to the direction of flow of the smoke, and the smoke produced by cooking initially moves upward, and when the smoke port 22 is a side draw smoke port 22, the upward flow of smoke changes direction to a side flow and flows into the smoke port 22. When the mouthpiece 22 is a top mouthpiece 22, the smoke moving upward flows directly to the mouthpiece 22 without changing direction laterally.

Referring to fig. 10 again, in an embodiment, the housing 20 includes a side-suction portion extending in the up-down direction, the front panel 23 extends in the up-down direction, the filter screen assembly 10 is disposed on the side-suction portion, and the filter screen assembly 10 is located above the smoking opening 22. In this embodiment, the range hood is a hybrid range hood or a side draft range hood. For the hybrid range hood, the front panel 23 is a lower front panel 23, the housing 20 further includes an upper front panel 26, a rear end of the upper front panel 26 is connected to an upper end of the lower front panel 23, the upper front panel 26 extends substantially along the front-rear direction, the lower front panel 23 extends along the up-down direction, the back panel 25 is opposite to the lower front panel 23, and a flat cavity extending along the left-right direction is formed between the two, and the cavity forms a part of the air duct 21. The lower front panel 23 is provided with a smoking port 22 (for better explanation, the smoking port 22 is referred to as a lower smoking port 22), and the upper front panel 26 is provided with an upper smoking port 261.

Referring again to fig. 11, in the present embodiment, the filter screen assembly 10 is disposed between the lower front panel 23 and the back panel 25, and the filter screen assembly 10 is located above the lower smoking opening 22. The lower mouth 22 is larger in area than the upper mouth 261 and is close to the source of the cooking fumes, so theoretically most of the cooking fumes enter the interior of the range hood through the lower mouth 22. In order to reduce the contamination of the fan 40 by the soot, a freely rotatable screen assembly 10 is provided below the fan 40 and above the lower suction port 22. After the range hood is started, airflow flows through the lower smoke suction port 22 and then drives the filter screen assembly 10 to rotate, the filter screen assembly 10 rotates to continuously collide with oil smoke, grease in the oil smoke is intercepted by the filter screen, and the probability that the fan 40 is polluted by the oil smoke is reduced.

For the conventional oil smoke purifying device, because the filter screen is fixed at the smoke suction port 22, the probability of oil smoke pollution is high, and in order to avoid the blockage of the mesh by condensed grease, the size of the filter screen grating or the perforation is generally larger. The through hole rate of the filter screen is increased, the surface area is reduced, the area for the filter screen to collide with and intercept oil smoke is also reduced, and the oil-fat separation degree is reduced relatively. In addition, for the design of the filter screen, the surface of the filter screen is uneven after the filter screen is pressed into a certain shape in general.

To the above problem, in the embodiment of the present invention, the smoke suction opening 22 is provided with a filter screen, and the filter screen assembly 10 is arranged in the air duct 21, and the aperture of the filter screen is larger than the aperture of the filter hole 1221 of the filter screen assembly 10. After the oil smoke is primarily filtered by the filter screen, the oil smoke passes through the continuously rotating filter screen assembly 10, and the filter holes 1221 on the surface of the filter screen assembly 10 continuously cut the oil smoke to intercept oil drops in the oil smoke. After the filter screen assembly 10 intercepts the oil smoke, oil drops on the filter screen assembly 10 are thrown out towards the periphery and the lower part along the inclined plane of the filter screen assembly 10 and the centrifugal action generated by the rotation of the filter screen assembly 10. The oil and fat separation degree is improved by the circulation. Because of adopting the double filtration form, the meshes of the filter screen at the smoke suction port 22 can be larger, thereby ensuring the smooth flow of the air flow, and simultaneously, the filter area is not required to be increased by compression; the filter screen component 10 inside can ensure high oil separation degree, and double filtering effects are achieved.

The above is only the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the specification and the attached drawings did, or directly/indirectly use all to include in other relevant technical fields the patent protection scope of the present invention.

Claims (15)

1. A screen assembly, comprising:

a connecting portion; and

a plurality of filter blade, filter blade with connecting portion can dismantle the connection, and is a plurality of filter blade encircles connecting portion arranges, filter blade has a plurality of filtration holes.

2. The filter screen assembly of claim 1, wherein the connector portion defines a slot, and the filter blade includes a blade body and a plug portion, the plug portion being in plug engagement with the slot, the blade body defining the plurality of filter apertures.

3. The screen assembly of claim 2, wherein the connection portion includes a rotating shaft, the filter blade extends in an axial direction of the rotating shaft, and a plurality of the filter blades are arranged in a circumferential direction of the rotating shaft; the circumferential surface of the rotating shaft is provided with the slot.

4. The screen assembly of claim 3, wherein the slot extends axially along the shaft, the slot extending through at least one end of the shaft to form a socket;

the inserting part is inserted into the slot from the inserting port.

5. The filter screen assembly according to claim 4, wherein the insertion slot has an insertion section and a limiting section which are distributed along a slot depth direction and are communicated with each other, the insertion section penetrates through a circumferential surface of the rotating shaft, and a slot width of the insertion section is smaller than a slot width of the limiting section in a circumferential direction of the rotating shaft;

the inserting part comprises an inserting section and a connecting section connected with the blade body, the inserting section is inserted into the limiting section from the inserting port, and the width of the inserting section is smaller than or equal to the groove width of the limiting section and larger than the groove width of the inserting section.

6. The screen assembly of claim 4, further comprising a stop member coupled to the rotatable shaft corresponding to the socket to limit the filter blade.

7. The screen assembly of claim 6, wherein the stop member is in mating engagement with the slot from the socket, and wherein one end of the stop member abuts the socket to close off the slot at the end of the socket.

8. The filter screen assembly of claim 7, wherein the stop member comprises a stop body, a snap-in block, and a connecting rib, the connecting rib connects the snap-in block and the stop body, respectively, such that there is a mounting gap between the snap-in block and the stop body; the end face of the rotating shaft with the inserting port is provided with a clamping groove;

the backstop body with the slot cooperation of pegging graft, the joint piece with the draw-in groove joint.

9. The screen assembly of claim 8, wherein the stopper body includes a base plate and a sealing protrusion disposed on a surface of the base plate, an end surface of the base plate abuts an end surface of the insertion section of the insertion portion, and an end surface of the sealing protrusion abuts an end surface of the connection section of the insertion portion.

10. The filter screen assembly according to claim 2, wherein the connecting portion includes at least two support discs disposed opposite to each other, the support disc having the insertion slot formed therein, the insertion slot penetrating the support disc in an axial direction of the support disc;

two ends of the filter blades are respectively arranged on the supporting disk, and the filter blades are arranged along the circumferential direction of the supporting disk.

11. The screen assembly according to any one of claims 1 to 10, wherein the filter blade includes a wind guide portion and a filter portion distributed along a width direction thereof, the filter portion is connected to the connecting portion, and the filter portion is provided with a plurality of filter holes.

12. An oil fume purification device is characterized in that the oil fume purification device is a range hood or an integrated stove; the oil smoke purifier includes:

a housing having an air duct; and

a screen assembly according to any one of claims 1 to 11, rotatably mounted in the air duct.

13. The lampblack purification device as claimed in claim 12, wherein the connecting portion is provided with a rotating shaft, the inner surface of the shell is provided with supporting ribs, and the supporting ribs are bent to form mounting cavities for the rotating shaft to be placed in.

14. The lampblack purification device according to claim 13, wherein the shell comprises a front panel and two side plates respectively arranged on the left side and the right side of the front panel, the front panel can open and close the air duct, the supporting ribs are arranged on the inner surfaces of the side plates, and the mounting cavity is provided with a forward opening.

15. The lampblack purification device as claimed in claim 12, wherein the housing further has a smoke suction port and a smoke exhaust port, the air duct has an air inlet section and an air outlet section, the air inlet section is connected with the smoke suction port, and the air outlet section is connected with the smoke exhaust port; the air outlet section is provided with a fan; the filter screen assembly is arranged on the air inlet section.

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