CN114794964B

CN114794964B - Surface cleaning apparatus with dirt cup assembly

Info

Publication number: CN114794964B
Application number: CN202210642129.7A
Authority: CN
Inventors: 戴逢焱
Original assignee: Suzhou Simple Youwei Technology Co Ltd
Current assignee: Suzhou Simple Youwei Technology Co Ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2023-05-09
Anticipated expiration: 2042-06-07
Also published as: CN114794964A; CN116350118A

Abstract

The invention discloses surface cleaning equipment with a dust cup component, wherein the dust cup component comprises a cyclone separation chamber and a dust collection chamber, and the cyclone separation chamber is arranged at the outer side of the dust collection chamber and is communicated with the dust collection chamber through an ash throwing port; the dust cup assembly further comprises an air outlet arranged in the cyclone separation chamber and a filtering structure arranged at the air outlet, and the filtering structure is rotatably arranged at the air outlet to filter air flow before being discharged from the air outlet. A baffle extending in the dust collection chamber is arranged at the dust throwing port to prevent part of dirt in the dust collection chamber from being sucked back into the cyclone separation chamber; at least one bulge protruding towards the direction of the bottom of the dust collecting chamber is arranged on one side of the baffle towards the bottom of the dust collecting chamber. The baffle is arranged at the ash throwing port, and the bulge is arranged below the baffle, so that hair can be effectively prevented from being pumped back to the cyclone separation chamber.

Description

Surface cleaning apparatus with dirt cup assembly

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to surface cleaning equipment with a dust cup assembly.

Background

Cyclone separators are generally divided into two types, one of which is an integrated type, i.e., a cyclone separation chamber and a dust collection chamber are both disposed in one chamber. The other is a split type, namely the cyclone separation chamber and the dust collection chamber are separately arranged, the cyclone separation chamber and the dust collection chamber are communicated through an ash throwing port, and dirt separated from the cyclone separation chamber enters the dust collection chamber through the ash throwing port.

The advantage of using a separate cyclone separator is that dust can be collected separately and not repeatedly sucked into the cyclone chamber, but, as hair often occurs during routine cleaning, the hair is relatively light and easily sucked back into the cyclone chamber.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides surface cleaning equipment with a dust cup assembly, wherein a protrusion is arranged at the dust throwing port of the dust cup assembly, so that hair can be effectively prevented from being drawn back into cyclone separation.

In a first aspect, the present invention provides a surface cleaning apparatus having a dirt cup assembly comprising a cyclone chamber and a dirt collection chamber, the cyclone chamber being disposed outside the dirt collection chamber and in communication with the dirt collection chamber through a dirt throwing port; the dust cup assembly further comprises an air outlet arranged in the cyclone separation chamber and a filtering structure arranged at the air outlet, and the filtering structure is rotatably arranged at the air outlet to filter air flow before being discharged from the air outlet;

wherein, the ash throwing port is provided with a baffle plate extending in the dust collecting chamber to prevent part of dirt in the dust collecting chamber from being sucked back into the cyclone separation chamber; at least one bulge protruding towards the direction of the bottom of the dust collecting chamber is arranged on one side of the baffle towards the bottom of the dust collecting chamber.

Optionally, the number of the protrusions is a plurality.

Optionally, at least one protrusion is disposed at an end of the baffle away from the ash throwing port.

Optionally, the dirt cup assembly further comprises a mounting bracket for supporting the filter structure, the filter structure comprising a first end proximal to the air outlet and a second end distal to the air outlet, the second end being rotatably mounted to the mounting bracket such that the filter structure is rotatable relative to the mounting bracket.

Optionally, the filtering structure comprises a filtering frame, the filtering frame is arranged in a containing groove, at least one bearing is arranged in the containing groove, and the filtering frame is rotatably installed on the installation frame through the at least one bearing.

Optionally, the filtering structure comprises a filter screen and guide ribs arranged on the outer side of the filter screen, and the guide ribs protrude out of the outer surface formed by the filter screen.

Optionally, the filtering structure comprises a filter screen, and at least part of the projection of the filter screen along the direction perpendicular to the rotation axis of the filtering structure falls into the region where the ash throwing port is located.

Optionally, the baffle is provided with at least one through hole penetrating the baffle in the thickness direction.

Optionally, a fan is disposed in the filtering structure, the fan rotates by the air flow flowing out of the air outlet, and the fan can drive the filtering structure to rotate.

Optionally, the fan comprises a plurality of fan blades, the fan blades comprise a near shaft end close to the rotation axis and a far shaft end far away from the rotation axis along the radial direction, and the near shaft ends of the fan blades are arranged in a suspending mode.

In a second aspect, the present invention provides a vacuum cleaner comprising a dirt cup assembly for generating a suction airstream and a blower assembly for separating dirt from the airstream carried with the dirt; the dust cup assembly comprises a cyclone separation chamber and a dust collection chamber, wherein the cyclone separation chamber is arranged outside the dust collection chamber and is communicated with the dust collection chamber through an ash throwing port;

the dust cup assembly further comprises an air outlet and a filtering structure arranged at the air outlet, and the filtering structure is rotatably arranged at the air outlet to filter air flow before being discharged from the air outlet;

the filter structure comprises a filter screen, and at least part of projection of the filter screen towards the position where the ash throwing port is located falls into the region where the ash throwing port is located along the direction perpendicular to the rotation axis of the filter structure.

Optionally, the filtering structure includes a first end close to the air outlet and a second end far away from the air outlet, the direction along which the rotation axis extends is a height direction, the first end is higher than the second end, and the lowest point of the second end is higher than the bottom of the ash throwing port and lower than the top of the ash throwing port along the height direction.

Optionally, the filtering structure includes a first end close to the air outlet and a second end far away from the air outlet, the direction along which the rotation axis extends is a height direction, the first end is higher than the second end, and the lowest point of the second end along the height direction is basically level with the bottom of the ash throwing port.

Optionally, a part of the projection of the filter screen towards the position of the ash throwing port along the direction perpendicular to the rotation axis of the filter structure falls into the region of the ash throwing port.

Optionally, a baffle extending in the dust collection chamber is arranged at the dust throwing port to prevent part of dirt in the dust collection chamber from being pumped back into the cyclone separation chamber.

Optionally, a fan is disposed in the filtering structure, the fan is driven to rotate by the air flow flowing out of the air outlet, the fan can drive the filtering structure to rotate, the fan comprises a plurality of fan blades, the fan blades comprise a near shaft end close to the rotation axis and a far shaft end far away from the rotation axis along the radial direction, and the near shaft ends of the fan blades are suspended relative to the mounting frame.

Optionally, the filtering structure comprises a filter screen and at least one guide rib arranged on the outer side of the filter screen, the guide rib protrudes out of the outer surface formed by the filter screen, and the guide rib extends along the circumferential direction and the length direction of the filtering structure at the same time.

Optionally, at least one protrusion protruding towards the direction of the bottom of the dust collecting chamber is arranged on one side of the baffle towards the bottom of the dust collecting chamber.

Optionally, the outer diameter of the filter structure decreases gradually in a direction away from the air outlet.

In a third aspect, the present invention provides a dirt cup assembly comprising a cyclonic separation chamber and a dirt collection chamber, the dirt cup assembly further comprising an air outlet and a filter structure disposed at the air outlet, the filter structure being rotatably disposed within the dirt cup assembly to filter an air flow prior to discharge from the air outlet;

a fan is arranged in the filtering structure and rotates through the air flow flowing out of the air outlet, so that the filtering structure is driven to rotate;

the fan comprises a near shaft end close to the rotation axis and a far shaft end far away from the rotation axis along the radial direction, and the near shaft end of the fan is arranged in a suspending mode to form a channel.

Optionally, the fan includes a plurality of flabellum, and a plurality of the paraxial end of flabellum is all unsettled to be set up.

Optionally, the filter structure further comprises a mounting frame for supporting the filter structure, wherein the mounting frame is arranged at the air outlet, and at least part of the mounting frame penetrates through the channel.

Optionally, the mounting frame includes a fixed shaft, and the bearing is mounted at one end of the fixed shaft away from the air outlet.

Optionally, an outer bearing is arranged on the periphery of the filtering structure, and the filtering structure is installed at the air outlet through the outer bearing.

Optionally, the filter structure comprises a first end close to the air outlet and a second end far away from the air outlet, and the periphery of the first end is provided with a protection plate extending outwards along the radial direction.

Optionally, the fixed shaft is detachably disposed on the mounting frame.

The invention provides surface cleaning equipment with a dust cup component, wherein the dust cup component comprises a cyclone separation chamber and a dust collection chamber, and the cyclone separation chamber is arranged at the outer side of the dust collection chamber and is communicated with the dust collection chamber through an ash throwing port; the dust cup assembly further comprises an air outlet arranged in the cyclone separation chamber and a filtering structure arranged at the air outlet, and the filtering structure is rotatably arranged at the air outlet to filter air flow before being discharged from the air outlet. A baffle extending in the dust collection chamber is arranged at the dust throwing port to prevent part of dirt in the dust collection chamber from being sucked back into the cyclone separation chamber; at least one bulge protruding towards the direction of the bottom of the dust collecting chamber is arranged on one side of the baffle towards the bottom of the dust collecting chamber. The baffle is arranged at the ash throwing port, and the bulge is arranged below the baffle, so that hair can be effectively prevented from being pumped back to the cyclone separation chamber.

Drawings

FIG. 1 is a schematic view of a hand-held cleaner according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along the direction F-F in FIG. 1;

FIG. 3 is a cross-sectional view taken along the direction E-E in FIG. 1;

FIG. 4 is a cross-sectional view taken along the direction G-G in FIG. 1;

FIG. 5 is a schematic view of the structure of a dirt cup assembly in an embodiment;

FIG. 6 is a cross-sectional view taken along the line A-A in FIG. 5;

FIG. 7 is a cross-sectional view taken at another angle in the direction A-A of FIG. 5;

FIG. 8 is an enlarged view of a portion of area A of FIG. 6;

FIG. 9 is an exploded view of the rotating structure in the dirt cup assembly;

FIG. 10 is a schematic diagram of a fan according to an embodiment;

FIG. 11 is a schematic view of a structure of a filter frame according to an embodiment;

FIG. 12 is a schematic view of the structure of the filter holder as seen from the second end toward the first end;

FIG. 13 is a cross-sectional view of a dirt cup assembly in another embodiment;

fig. 14 is a schematic structural view of a filtering structure in another embodiment.

Description of the embodiments

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the case where a directional instruction is involved in the embodiment of the present invention, the directional instruction is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional instruction is changed accordingly.

In addition, if there is a description of "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 a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application can be understood by those of ordinary skill in the art in a specific context.

Fig. 1 is a schematic view of a hand-held cleaner according to an embodiment of the invention. Fig. 2 is a cross-sectional view taken along the direction F-F in fig. 1. Fig. 3 is a sectional view taken along the direction E-E in fig. 1. Fig. 4 is a sectional view taken along the direction G-G in fig. 1. FIG. 5 is a schematic view of the structure of a dirt cup assembly in an embodiment. Fig. 6 is a cross-sectional view taken along the direction A-A in fig. 2. Fig. 7 is a cross-sectional view taken at another angle in the direction A-A of fig. 2. Fig. 8 is a partial enlarged view of the area a in fig. 3. FIG. 9 is an exploded view of the rotating structure in the dirt cup assembly. Fig. 10 is a schematic structural diagram of a fan according to an embodiment. FIG. 11 is a schematic diagram of a filter frame in an embodiment. Fig. 12 is a schematic view of the structure of the filter holder as seen from the second end toward the first end. Referring to fig. 1-4, a hand-held cleaner 10 is disclosed, wherein the arrow X direction is the length direction of the hand-held cleaner, the Y direction is the width direction, and the Z direction is the height direction. The hand-held cleaner 10 comprises a body 2, a dirt cup assembly 1, a blower assembly 3, a battery pack 4 and a filter 33. The dust cup assembly 1, the fan assembly 3, the battery pack 4, the filter 33 and the like can be detachably mounted on the machine body 2. The battery pack 4 powers the blower assembly 3, and the blower assembly 3 generates a suction air flow that draws dirt from the surface to be cleaned into the dirt cup assembly 1 along the suction duct. A battery pack 4 is provided at the lower end of the handle 22 for powering the motor in the fan assembly 3.

With continued reference to fig. 1-4, the hand-held cleaner includes a body 2, a blower assembly 3, a dirt cup assembly 1, and a battery pack 4. The body 2 comprises a handle 22 for gripping and defines a suction duct. A blower assembly 3 is provided to the body 2 for generating a suction air flow. The fan assembly 3 is arranged above the handle. The dust cup assembly 1 is arranged on the machine body 2 along the extension direction of the suction pipeline and in front of the fan assembly. A battery pack 4 is provided at the lower end of the handle 22 for powering the motor in the fan assembly. Wherein, fan subassembly includes fan and filter, is located handle axis O both sides respectively along the width direction fan and the filter of handheld dust catcher, and referring to fig. 3, the dirt cup subassembly includes cyclone chamber 12 and dust collection chamber 13, communicates through getting rid of grey mouthful 14 between cyclone chamber 12 and the dust collection chamber 13, sets up side by side along the width direction cyclone chamber 12 and the dust collection chamber 13 of handheld dust catcher. The fan assembly and the battery pack are respectively arranged at the two ends of the handle, and meanwhile, the fan 31 and the filter element 33 are respectively arranged at the two sides of the axis O of the handle, so that the battery pack 4, the fan 31 and the filter element 33 form a triangular position relationship.

Referring to fig. 5 to 12, the dust cup assembly of the dust collector includes a cyclone chamber 12 and a dust collecting chamber 13, the cyclone chamber 12 being disposed outside the dust collecting chamber 13 and communicating with the dust collecting chamber 13 through an ash throwing port 14; the cyclone separation chamber 12 further comprises an air inlet 122 and an air outlet 123, and the air inlet 122 and the air outlet 123 are respectively positioned at two ends of the cyclone separation chamber 12; the ends are not particularly referred to herein as bottom walls, and the ends may include the bottom wall of the end wall and a minor segment of the side wall connected to the bottom wall. The two ends described herein include the air inlet 122 and the air outlet 123 being located at opposite bottom walls of the cyclonic separating chamber 12 respectively, or one of the air inlet 122 and the air outlet 123 may be located at the bottom wall and the other at the side wall. The positions of the air inlet 122 and the air outlet 123 at the respective ends of the cyclonic separating chamber 12 can also be understood as: the air inlet 122 and the air outlet 123 are not provided at one end but are provided separately, and at least with respect to the intermediate position of the cyclonic separating chamber 12, the air inlet 122 and the air outlet 123 are provided on either side of the intermediate position and adjacent to or at the bottom wall, respectively. Referring to fig. 5-12, the dirt cup assembly further includes a filter structure 7 disposed at the air outlet 123, the filter structure 7 being rotatably disposed at the air outlet 123 to filter the air flow prior to exiting the air outlet 123. The filtering structure 7 comprises a filtering frame 71 and a filtering net 74 arranged on the filtering frame 71, wherein the filtering net 74 can be a metal net, and the metal net can be fixed to the filtering frame 71 by gluing or other modes after being processed. Of course, the filter screen 74 may be integrally formed with the filter frame 71. The filter structure 7 further comprises at least one guiding rib 76 arranged outside the filter screen 74, the guiding rib 76 protrudes out of the outer surface formed by the filter screen 74, and the guiding rib 76 extends along the circumferential direction and the length direction of the filter structure 7. The guide ribs 76 prevent hairs or the like from abutting the filter screen 74 and at the same time guide the hairs downwards so as to disengage the hairs from the filter structure 7. Referring to fig. 11-12, the filter frame 71 includes a fan mounting bracket 78 and a bearing mounting bracket, with the fan mounting bracket 78 and the bearing mounting bracket being connected by a plurality of guide ribs 76. The number of the guide ribs 76 is 3 or more, so that the structure can be more stable, and hair falling is facilitated. The plurality of guide ribs 76 define a frustoconical receiving space or frustum-shaped receiving space. The filter frame 71 and the guide rib 76 may be integrally formed, and the filter screen 74 is disposed inside the guide rib 76. Referring to the figure, at least part of the projection of the filter screen 74 towards the location of the dust opening 14 in a direction perpendicular to the rotation axis P of the filter structure 7 falls into the area of the dust opening 14. The rotary structure is arranged in the area corresponding to the dust throwing port 14, and the rotary filtering structure 7 can guide or flap dust and sundries to the dust throwing port 14 at the same time, so that the speed of the dust entering the dust throwing port 14 is increased, and the separation efficiency is improved. Meanwhile, since the rotation direction of the filtering structure 7 is the same as the rotation direction in the cyclone separation chamber 12, the possibility of hair entanglement can be effectively reduced, because if the rotation direction of the filtering structure 7 is the same as the rotation direction of dust, the speed difference between the two can be effectively reduced, and meanwhile, the hair can be directly thrown to the dust throwing port 14 due to the centrifugal force of the filtering structure 7.

Referring to fig. 11-12, the outer diameter of the filter structure 7 gradually decreases in a direction away from the air outlet 123. I.e. the hair wound around the filter frame 71 is gradually thrown off during rotation of the filter structure 7 and then enters the dust throwing port 14. That is, the filter structure 7 includes a first end 711 adjacent to the air outlet 123 and a second end 712 remote from the air outlet 123, the first end 711 having an outer diameter greater than the outer diameter of the second end 712. The second end 712 is suspended in the cyclone chamber 12, and the outer diameter of the filtering structure 7 gradually decreases along a direction away from the air outlet 123. I.e., the fan mounting bracket 78 has an outer diameter that is greater than the outer diameter of the bearing mounting bracket. So that the filter arrangement 7 hangs like a truncated cone within the cyclonic separating chamber 12 to facilitate the removal of hair from the second end 712. The first end 711 of the filter structure 7 is suspended relative to the mounting frame 75. The filter structure 7 can be a truncated cone or a truncated pyramid on the whole, so that hair can be conveniently shed. To further enhance the probability of hair falling off, the guide ribs 76 extend both in the circumferential direction and in the length direction of the filter structure 7.

Referring to fig. 8 and 9, the dirt cup assembly further includes a mounting bracket 75 for supporting the filter structure 7, the mounting bracket 75 being disposed at the air outlet 123 for supporting the filter structure 7. The mounting frame 75 is disposed at the air outlet 123, and it should be understood that the mounting frame 75 may be disposed in the air outlet 123, or may be disposed at a position near the upstream and downstream of the air outlet 123, and the specific position is not limited herein in detail. The filter structure 7 includes a first end 711 proximate to the air outlet 123 and a second end 712 distal to the air outlet 123, the first end 711 being suspended relative to the mounting frame 75, the second end 712 being rotatably mounted to the mounting frame 75 such that the filter structure 7 is rotatable relative to the mounting frame 75. Referring to fig. 8 and 9, the mounting frame 75 includes a support 751 fixed to the air outlet 123, the support 751 being a cross support structure, although in other implementations the support 751 may be any support structure for rotatably mounting the filter structure 7 to the air outlet 123. In order to facilitate the disassembly and assembly of the filter structure 7, the filter structure 7 is mounted to one end of the fixing shaft 752 through the bearing 753, and the other end of the fixing shaft 752 is fixed to the supporting structure, so that the fixing shaft 752 is static relative to the supporting structure, and the advantage that the fixing shaft 752 is static relative to the supporting structure is that the probability of hair winding entering the filter structure 7 can be reduced. Further, the fixing shaft 752 is detachably mounted on the supporting structure, so that a user can conveniently detach the fixing shaft to clean the filtering structure 7, and even if sundries such as hair remain in the filtering structure 7, the user only needs to clean the fixing shaft simply. In one implementation, the outer circumference of the end of the stationary shaft 752 remote from the bearing 753 is provided with an elastomeric material that is in an interference fit with the mounting frame 75. In other implementations, the fixing shaft 752 may be detachably disposed on the mounting frame 75 through a threaded connection, a clamping connection, or the like.

Referring to fig. 11 and 12, a bearing mounting bracket on the filter frame 71 is provided in the accommodating groove 713, at least one bearing 753 is provided in the accommodating groove 713, and the filter frame 71 is rotatably mounted to the mounting frame 75 by the at least one bearing 753. The receiving groove 713 includes a bottom wall and a peripheral wall extending upwardly along the periphery of the bottom wall, the bottom wall and the peripheral wall together defining the receiving groove 713, the receiving groove 713 including an opening for mounting the bearing 753. The accommodating groove 713 is arranged in this way, so that sundries can be well prevented from entering the accommodating groove 713, and the smooth operation of the bearing 753 is not affected. The number of bearings 753 is two, and they are arranged side by side in the axial direction. Two bearings 753 are arranged side by side, so that the stability of the filtering structure 7 can be effectively improved. The end of the stationary shaft 752 remote from the bearing 753 is detachably mounted to the mounting frame 75. The length of the bearing mounting bracket can be adjusted according to practical situations, in particular, the bearing mounting bracket can extend to the first end 711 of the filter structure 7 and even exceed the first end 711, so that the length of the fixing shaft 752 can be reduced, or the filter structure 7 with relatively short length can be adapted. Even if the bearing mounting bracket is long, it is understood that the filter structure 7 is rotatably mounted by the second end 712, as long as the first end 711 of the filter structure 7 is suspended relative to the mounting bracket 75 or other fixed structure and the two are relatively movable.

With continued reference to fig. 8, 11 and 12, the filter structure 7 comprises a first end 711 adjacent to the air outlet 123 and a second end 712 remote from the air outlet 123, the outer periphery of the first end 711 being provided with a shielding plate 77 extending outwardly in a radial direction. The dirt cup assembly also includes a filter support, a clearance fit between the guard 77 and the filter support, and a tortuous path formed therebetween that prevents dust and hair from entering.

The filter structure 7 may be driven by a driving member, and in some implementations, referring to fig. 6-10, a fan 8 is disposed in the filter structure 7, and the fan 8 rotates by the air flow flowing out of the air outlet 123, so as to drive the filter structure 7 to rotate; wherein the fan 8 comprises a proximal end 84 close to the axis of rotation P and a distal end 83 remote from the axis of rotation P in the radial direction, the proximal end 84 of the fan 8 being suspended in relation to the mounting frame 75. In one implementation, the fan 8 may be annular, and the center of the fan 8 is in a hollow structure, so that objects can pass through conveniently. The fan 8 includes a plurality of fan blades 81, and both ends of the fan blades 81 are fixed to corresponding circular rings, and a space defined by the inner circular rings can ensure free penetration of objects. Further, the fan 8 includes a plurality of fan blades 81, and proximal shaft ends 84 of the fan blades 81 are all suspended. In one embodiment, the fan blades 81 may be molded directly onto the filter frame 71. In another implementation, the fan 8 may be a separately manufactured piece, and the fan 8 may be fastened to the inside or outside of the filter frame 71 by clamping, gluing, ultrasonic welding, or the like after manufacturing. The fan blade 81 adopts a suspending mode, so that on one hand, the air flow area can be increased, and on the other hand, the hair can be effectively prevented from being wound on the fan blade 81.

FIG. 13 is a cross-sectional view of a dirt cup assembly in another embodiment. Fig. 14 is a schematic structural view of a filtering structure in another embodiment. Referring to fig. 13 and 14, the structure in this embodiment may employ the structure described in the above embodiment, except for the mounting manner of the filter structure 7, which is different from that in the other embodiments. Referring to fig. 13-14, in another implementation, the outer periphery of the filter structure 7 is provided with an outer bearing 82, which is mounted at the air outlet 123 by the outer bearing 82. In this way, the interior of the filter structure 7 is substantially empty, substantially free from hair entanglement, improving the reliability of the filter structure 7.

Referring to fig. 6 and 7, a baffle 9 extending within the dust collection chamber 13 is provided at the dust throwing port 14 to block a portion of the dirt within the dust collection chamber 13 from being drawn back into the cyclone chamber 12. Since the filter structure 7 is relatively close to the dust throwing port 14, a baffle 9 extending in the dust collecting chamber 13 is arranged at the dust throwing port 14 in order to prevent dust in the dust collecting chamber 13 from being pumped into the cyclone separating chamber 12. The baffle 9 may be a straight baffle 9 or a curved baffle 9, and the suspended end of the baffle 9 may be inclined toward the bottom of the dust chamber 13 to achieve a better anti-suck-back effect. In order to further prevent hairs in the dust chamber 13 from being drawn back into the cyclone chamber 12, the side of the baffle 9 facing the bottom of the dust chamber 13 is provided with at least one projection 92 projecting in the direction of the bottom of the dust chamber 13. Thus, when the hair enters the dust collecting chamber 13, the hair will reach under the baffle 9 due to the disturbance of the air flow, and a part of the hair may return to the dust throwing port 14 along the edge of the baffle 9, and if the protrusions 92, especially the plurality of protrusions 92 arranged separately, are arranged under the baffle 9, the hair and dust and the like can be effectively fixed to the protrusions 92, and prevented from being sucked back.

In other implementations, the filter structure 7 may be driven by a motor, and teeth may be provided on a peripheral wall of the filter structure 7, where the motor is disposed on one side of the filter structure 7, and drives the filter structure 7 to rotate through a transmission structure such as a gear. The outer periphery of the filter structure 7 is provided with an outer bearing 82, so that no blocking of the inner space of the filter structure 7 can be realized, and the failure rate can be reduced. It will be appreciated that the filter arrangement 7 may also be driven by the driving member in other ways of transmission, which will not be described in detail here.

In one embodiment, the filtering structure 7 includes a first end 711 near the air outlet 123 and a second end 712 far from the air outlet 123, such that the direction along which the rotation axis P extends is a height direction, and the first end 711 is higher than the second end 712, and the lowest point of the second end 712 is higher than the bottom of the dust throwing port 14 and lower than the top of the dust throwing port 14 in the height direction, which is suitable for a dust cup with a relatively short height. Although not shown in the drawings, reference is made to fig. 6, in which L1 shown in fig. 6 is located below L2, that is, the lowest point L1 of the filter mechanism is lower than the lowest point L2 of the dust throwing port 14. In the present embodiment, L1 should be located above L2.

In one embodiment, the filtering structure 7 includes a first end 711 near the air outlet 123 and a second end 712 far from the air outlet 123, such that the direction along which the rotation axis PP extends is a height direction, and the first end 711 is higher than the second end 712, and the lowest point of the second end 712 is substantially level with the bottom of the dust throwing port 14 along the height direction, that is, L1 should be substantially level with L2, which is the case for dust cups with relatively high heights.

In one embodiment, the portion of the filter screen 74 that is directed toward the location of the dust opening 14 in a direction perpendicular to the axis of rotation P of the filter structure is projected to fall into the region of the dust opening 14, all other structures being unchanged.

The dust cup assembly of any of the above embodiments may be used in a floor sweeping robot, a canister cleaner, a standing cleaner, a mite-killing device, or other related surface cleaning devices, which are only examples, and are not limited to the above cleaning devices, but may be other indoor or outdoor cleaning devices.

Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims

1. A surface cleaning apparatus having a dirt cup assembly, wherein the dirt cup assembly comprises a cyclone chamber and a dust collection chamber, the cyclone chamber being disposed outside the dust collection chamber and communicating with the dust collection chamber through a dust throwing port; the dust cup assembly further comprises an air outlet arranged in the cyclone separation chamber and a filtering structure arranged at the air outlet, and the filtering structure is rotatably arranged at the air outlet to filter air flow before being discharged from the air outlet;

wherein, the ash throwing port is provided with a baffle plate extending in the dust collecting chamber to prevent part of dirt in the dust collecting chamber from being sucked back into the cyclone separation chamber; at least one bulge protruding towards the direction of the bottom of the dust collection chamber is arranged on one side of the baffle towards the bottom of the dust collection chamber;

the filter structure comprises a filter screen, and at least part of the filter screen along the direction perpendicular to the rotation axis of the filter structure is projected to fall into the region where the ash throwing port is located.

2. A surface cleaning apparatus as claimed in claim 1, wherein,

the number of the protrusions is plural.

3. A surface cleaning apparatus as claimed in claim 1, wherein,

at least one bulge is arranged at one end of the baffle, which is far away from the ash throwing port.

4. A surface cleaning apparatus as claimed in any one of claims 1 to 3,

the dirt cup assembly further includes a mounting bracket for supporting the filter structure, the filter structure including a first end proximate to the air outlet and a second end distal to the air outlet, the second end rotatably mounted to the mounting bracket such that the filter structure is rotatable relative to the mounting bracket.

5. The surface cleaning apparatus of claim 4,

the filter structure comprises a filter frame, the filter frame is arranged in a containing groove, at least one bearing is arranged in the containing groove, and the filter frame is rotatably arranged on the mounting frame through the at least one bearing.

6. A surface cleaning apparatus as claimed in any one of claims 1 to 3,

the filter structure comprises a filter screen and guide ribs arranged on the outer side of the filter screen, and the guide ribs protrude out of the outer surface formed by the filter screen.

7. A surface cleaning apparatus as claimed in any one of claims 1 to 3,

the baffle is provided with at least one through hole penetrating through the baffle in the thickness direction.

8. A surface cleaning apparatus as claimed in any one of claims 1 to 3,

the filter structure is internally provided with a fan, the fan rotates through the air flow flowing out of the air outlet, and the fan can drive the filter structure to rotate.

9. A surface cleaning apparatus as claimed in claim 8, wherein,

the fan comprises a plurality of fan blades, wherein the fan blades comprise a near shaft end close to a rotation axis and a far shaft end far away from the rotation axis along the radial direction, and the near shaft ends of the fan blades are arranged in a suspending mode.