CN217645111U - Dirt cup subassembly and surface cleaning equipment - Google Patents

Abstract

The utility model discloses a surface cleaning device. A dust cup assembly in the surface cleaning device includes a cyclone separation chamber, and the cyclone separation chamber includes an air inlet and an air outlet. The dust cup assembly also includes a filter structure disposed at the air outlet, the filter structure is rotatably mounted to the mounting frame, and used to filter the airflow before being discharged from the air outlet, and the filter structure includes a first end close to the air outlet and a first end away from the air outlet. The second end is a clearance fit between the first end of the filtering structure and the mounting frame. In order to prevent dust from entering the interior of the filter structure from the gap, the dust cup assembly is further provided with a blocking member, and the blocking member is set on one of the filter structure or the mounting frame, and has an interference fit with the other. By arranging the blocking piece and through the interference fit, the probability of dust entering the interior of the filter structure can be effectively reduced, the normal operation of the vacuum cleaner can be ensured, and the service life of the surface cleaning equipment can be increased.

Description

Dust cup components and surface cleaning equipment

technical field

The utility model relates to the technical field of cleaning equipment, in particular to a dust cup assembly and surface cleaning equipment.

Background technique

Cyclone separators have been widely used in vacuum cleaners. In order to further improve the separation effect of filter separators, a rotatable filter structure is added to the cyclone separators. The rotatable filter structure can improve the filtering effect.

However, since the filter structure and the mounting frame are rotatable, there will be a gap between the two, and the existence of the gap will cause dust to enter the inside of the filter, affecting the operation and dust removal efficiency of the vacuum cleaner.

Utility model content

In view of the deficiencies in the above technologies, the utility model provides a dust cup assembly and surface cleaning equipment, which can effectively prevent dust from entering the interior of the filter structure, so as to ensure the normal operation of the vacuum cleaner.

In one aspect, the present invention provides a dust cup assembly, comprising:

a cyclone separation chamber, which includes an air inlet and an air outlet;

A filter structure disposed at the air outlet, the filter structure is rotatably mounted to the mounting frame and used to filter the air flow before being discharged from the air outlet, the filter structure includes a first end close to the air outlet and a second end away from the air outlet, the first end of the filter structure and the mounting bracket are gap-fitted;

The blocking piece is arranged on one of the filtering structure or the mounting frame, and is in an interference fit with the other one.

Optionally, the outer periphery of the first end is provided with a protective plate extending outward in the radial direction; the protective plate and the mounting bracket are in clearance fit and a channel is formed therebetween, at least part of the blocking The piece is located in the channel.

Optionally, a baffle ring protruding downward is provided on the mounting frame, and a channel is defined between the protective plate and the baffle ring.

Optionally, the retaining ring is higher than the protective plate, and part of the blocking member is located below the retaining ring.

Optionally, the blocking member is disposed at the first end of the filtering structure.

Optionally, the blocking member is an annular brush; the brush includes a plurality of bristles extending outward.

Optionally, the blocking member is arranged between the protective plate and the mounting bracket.

Optionally, the dust cup assembly further includes a dust collecting chamber which is communicated with the cyclone separation chamber through an ash throwing port; a baffle plate is provided at the ash throwing port, and the baffle plate faces the bottom of the dust collecting chamber. tilt.

Optionally, the baffle is an arc baffle.

On the other hand, the present invention also provides a surface cleaning device, the surface cleaning device includes a fan assembly for generating a suction air flow and the above-mentioned dust cup assembly.

The utility model provides a surface cleaning device. The dust cup assembly in the surface cleaning device includes a cyclone separation chamber, and the cyclone separation chamber includes an air inlet and an air outlet. The dust cup assembly also includes a filter structure disposed at the air outlet, the filter structure is rotatably mounted to the mounting frame, and used to filter the airflow before being discharged from the air outlet, and the filter structure includes a first end close to the air outlet and a first end away from the air outlet. The second end is a clearance fit between the first end of the filter structure and the mounting frame. In order to prevent dust from entering the interior of the filter structure from the gap, the dust cup assembly is further provided with a blocking member, and the blocking member is set on one of the filtering structure or the mounting frame, and has an interference fit with the other. By arranging the blocking piece and through the interference fit, the probability of dust entering the interior of the filter structure can be effectively reduced, the normal operation of the vacuum cleaner can be ensured, and the service life of the surface cleaning equipment can be increased.

Description of drawings

1 is a schematic structural diagram of a handheld vacuum cleaner in an embodiment of the present invention;

Fig. 2 is a sectional view along the F-F direction in Fig. 1;

Fig. 3 is a sectional view along the E-E direction in Fig. 1;

Fig. 4 is a sectional view along the G-G direction in Fig. 1;

5 is a schematic structural diagram of a dust cup assembly in an embodiment;

Fig. 6 is a sectional view along the A-A direction in Fig. 5;

Fig. 7 is a cross-sectional view at another angle along the A-A direction in Fig. 5;

Fig. 8 is a partial enlarged view of area A in Fig. 6;

Figure 9 is an exploded view of the rotating structure in the dust cup assembly;

10 is a schematic structural diagram of a fan in an embodiment;

11 is a schematic structural diagram of a filter frame in an embodiment;

Fig. 12 is the structural representation of the filter frame viewed from the second end toward the first end direction;

13 is a cross-sectional view of a dust cup assembly in another embodiment;

14 is a schematic structural diagram of a filtering structure in another embodiment;

15 is a schematic structural diagram of a dust cup assembly in still another embodiment of the present invention;

Figure 16 is an enlarged view of the B region in Figure 15;

Figure 17 is an enlarged view of the C region in Figure 15;

Figure 18 is a diagram showing the relative positional relationship among the filter structure, the blocking member and the mounting frame;

FIG. 19 is a schematic structural diagram of an annular brush in an embodiment.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that if there is a directional indication involved in the embodiments of the present invention, the directional indication is only used to explain the relative positional relationship, motion, etc. between the components under a certain posture. If the specific posture changes , the directional indication changes accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for the purpose of description, and should not be construed as instructions or Implicit their relative importance or implicitly indicate the number of technical features indicated. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the meaning of "and/or" in the whole text includes three parallel schemes. Taking "A and/or B" as an example, it includes scheme A, scheme B, or scheme satisfying both of A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present utility model.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood through specific situations.

FIG. 1 is a schematic structural diagram of a handheld vacuum cleaner in 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 structural diagram of a dust cup assembly in an embodiment. FIG. 6 is a cross-sectional view taken along the direction A-A in FIG. 5 . FIG. 7 is a cross-sectional view taken at another angle along the A-A direction in FIG. 5 . FIG. 8 is a partial enlarged view of the area A in FIG. 6 . Figure 9 is an exploded view of the rotating structure in the dust cup assembly. FIG. 10 is a schematic structural diagram of a fan in an embodiment. FIG. 11 is a schematic structural diagram of a filter frame in an embodiment. FIG. 12 is a schematic view of the structure of the filter holder viewed from the second end toward the first end. 1-4, a handheld vacuum cleaner 10 is disclosed, in which the arrow X direction is the length direction of the handheld vacuum cleaner, the Y direction is the width direction, and the Z direction is the height direction. The handheld vacuum cleaner 10 includes a body 2 , a dust cup assembly 1 , a fan assembly 3 , a battery pack 4 and a filter element 33 . The dust cup assembly 1 , the fan assembly 3 , the battery pack 4 and the filter element 33 can all be detachably mounted on the body 2 . The battery pack 4 provides power for the fan assembly 3, and the fan assembly 3 generates a suction airflow, and the suction airflow sucks the dirt on the surface to be cleaned into the dust cup assembly 1 along the suction duct. The battery pack 4 is disposed at the lower end of the handle 22 and is used to provide energy for the motor in the fan assembly 3 .

Continuing to refer to FIGS. 1-4 , the handheld vacuum cleaner includes a body 2 , a fan assembly 3 , a dust cup assembly 1 and a battery pack 4 . The body 2 includes a handle 22 for holding, and the body defines a suction duct. The fan assembly 3 is arranged on the body 2 for generating a suction airflow. The fan assembly 3 is arranged above the handle. The dust cup assembly 1 is arranged on the body 2 along the extension direction of the suction duct and is arranged along the front of the fan assembly. The battery pack 4 is disposed at the lower end of the handle 22 and is used to provide energy for the fan in the fan assembly. The fan assembly includes a fan and a filter element, and the fan and filter element are located on both sides of the handle axis O along the width direction of the hand-held vacuum cleaner. Referring to FIG. 3 , the dust cup assembly includes a cyclone separation chamber 12 and a dust collection chamber 13. The cyclone separation chamber 12 The cyclone separation chamber 12 and the dust collecting chamber 13 are arranged side by side along the width direction of the hand-held vacuum cleaner. The fan assembly and the battery pack are respectively arranged on both ends of the handle, and the fan 31 and the filter 33 are respectively arranged on both sides of the handle axis O, so that the battery pack 2, the fan 31 and the filter 33 form a triangular positional relationship, By adopting the structural design, the arrangement of the hand-held vacuum cleaner can be made more reasonable, and even if the user adopts different use angles, the hand feeling will not change greatly.

5-12, the dust cup assembly of the vacuum cleaner includes a cyclone separation chamber 12 and a dust collection chamber 13. The cyclone separation chamber 12 is arranged outside the dust collection chamber 13 and communicates with the dust collection chamber 13 through the ash throwing port 14; the cyclone separation chamber 12 It also includes an air inlet 122 and an air outlet 123, and the air inlet 122 and the air outlet 123 are respectively located at both ends of the cyclone separation chamber 12; the two ends here do not specifically refer to the bottom wall, and the ends may include the bottom wall and the bottom wall of the end wall. A small section of sidewall that connects to the bottom wall. The two ends described here not only include the air inlet 122 and the air outlet 123 respectively located on the two opposite bottom walls of the cyclone separation chamber 12, but also one of the air inlet 122 and the air outlet 123 may be provided on the bottom wall, and the other One is set on the side wall. It can also be understood that the air inlet 122 and the air outlet 123 are located at both ends of the cyclone separation chamber 12 respectively: the air inlet 122 and the air outlet 123 are not arranged at one end, but are arranged separately, at least relative to the middle of the cyclone separation chamber 12 In terms of location, the air inlet 122 and the air outlet 123 are respectively disposed on both sides of the middle position and are close to the bottom wall or located on the bottom wall. 5-12 , the dust cup assembly further includes a filter structure 7 disposed at the air outlet 123 , and the filter structure 7 is rotatably disposed at the air outlet 123 to filter the airflow before being discharged from the air outlet 123 . The filter structure 7 includes a filter frame 71 and a filter screen 74 disposed on the filter frame 71 . The filter screen 74 can be a metal mesh, and after the metal mesh is processed, it can be fixed to the filter frame 71 by gluing or other methods. Of course, the filter screen 74 can also be integrally formed with the filter frame 71 . The filter structure 7 also includes at least one guide rib 76 disposed outside the filter screen 74 , the guide rib 76 protrudes from the outer surface formed by the filter screen 74 , and the guide rib 76 extends along the circumferential direction and the length direction of the filter structure 7 at the same time. The guide ribs 76 can prevent hairs from abutting against the filter screen 74 , and can guide the hairs to move downward, so as to make the hairs escape from the filter structure 7 . 11-12 , the filter rack 71 includes a fan mounting bracket 78 and a bearing mounting bracket, and the fan mounting bracket 78 and the bearing mounting bracket are connected by a plurality of guide ribs 76 . The number of the guide ribs 76 is greater than or equal to three, which not only makes the structure more stable, but also facilitates hair loss. A plurality of guide ribs 76 define a truncated truncated accommodating space or a truncated truncated accommodating space. The filter frame 71 and the guide rib 76 can be integrally formed, and the filter screen 74 is arranged on the inner side of the guide rib 76 . 6 and 7 , at least part of the projection of the filter screen 74 toward the location of the ash throwing opening 14 along the direction perpendicular to the rotation axis P of the filter structure 7 falls into the area where the ash throwing opening 14 is located. The rotating structure is arranged in the area corresponding to the ash throwing port 14, and the rotating filter structure 7 can guide or beat the dust and debris to the ash throwing port 14 at the same time, accelerate the speed of dust entering the ash throwing port 14, and improve the separation efficiency. At the same time, since the rotation direction of the filter structure 7 is the same as the rotation direction in the cyclone separation chamber 12, the probability of hair entanglement can be effectively reduced, because if the rotation direction of the filter structure 7 and the rotation direction of the dust are the same, the two At the same time, due to the centrifugal force of the filter structure 7, the hair can be thrown directly to the ash throwing port 14.

Referring to FIGS. 11-12 , the outer diameter of the filter structure 7 gradually decreases in the direction away from the air outlet 123 . That is, the hair wrapped around the filter frame 71 is gradually thrown off during the rotation of the filter structure 7 , and then enters the ash throwing port 14 . That is, the filter structure 7 includes a first end 711 close to the air outlet 123 and a second end 712 away from the air outlet 123 , and the outer diameter of the first end 711 is larger than that of the second end 712 . The second end 712 is suspended in the cyclone separation chamber 12 , and the outer diameter of the filter structure 7 gradually decreases along the direction away from the air outlet 123 . That is, the outer diameter of the fan mounting bracket 78 is larger than the outer diameter of the bearing mounting bracket 79 . In order to make the filter structure 7 hang in the cyclone separation chamber 12 like a circular truncated structure, it is convenient for the hair to fall off from the second end 712 . The first end 711 of the filter structure 7 is suspended relative to the mounting bracket 75 . The filter structure 7 can be of a circular cone shape or a prismatic shape as a whole, which is convenient for hair to fall off. In order to further enhance the probability of hair falling, the guide ribs 76 extend in both the circumferential direction and the length direction of the filter structure 7 .

8 and 9 , the dust cup assembly further includes a mounting bracket 75 for supporting the filter structure 7 , and the mounting bracket 75 is disposed at the air outlet 123 for supporting the filter structure 7 . The mounting bracket 75 is disposed at the air outlet 123 . It can be understood that the mounting bracket 75 can be disposed in the air outlet 123 or at a position near the upstream and downstream of the air outlet 123 , and the specific location is not limited here. The filter structure 7 includes a first end 711 close to the air outlet 123 and a second end 712 away from the air outlet 123. The first end 711 is suspended relative to the mounting bracket 75, and the second end 712 is rotatably mounted on the mounting bracket 75 to The filter structure 7 is made rotatable relative to the mounting frame 75 . 8 and 9, the mounting bracket 75 includes a support member 751 fixed to the air outlet 123, and the support member 751 is a cross support structure. Of course, in other implementations, the support member 751 can be any support structure, and the support structure is used for The filter structure 7 is rotatably mounted to the air outlet 123 . In order to facilitate the disassembly and assembly of the filter structure 7, the filter structure 7 is installed to one end of the fixed shaft 752 through the bearing 753, and the other end of the fixed shaft 752 is fixed to the support structure, so that the fixed shaft 752 is stationary relative to the support structure, and the fixed shaft 752 is relative to the support structure. The benefit of having the support structure stationary is that it reduces the chance of entanglement of hairs entering the interior of the filter structure 7 . Further, the fixed shaft 752 is detachably installed on the support structure, so that the user can easily disassemble it to clean the filter structure 7. Even if there are debris such as hair remaining inside the filter structure 7, the user only needs to simply clean it up. Can. In an implementation manner, an elastic material is provided on the outer periphery of one end of the fixed shaft 752 away from the bearing 753 , and is in an interference fit with the mounting bracket 75 . In other implementation manners, the fixed shaft 752 may also be detachably disposed on the mounting frame 75 by means of screw connection, snap connection, or the like.

11 and 12 , the bearing mounting bracket 79 on the filter rack 71 is provided with an accommodating groove 713 , and at least one bearing 753 is disposed in the accommodating groove 713 , and the filter rack 71 is rotatably mounted on the mounting rack 75 through the at least one bearing 753 . The receiving groove 713 includes a bottom wall and a peripheral wall extending upward along the periphery of the bottom wall. The bottom wall and the peripheral wall together define a receiving groove 713 , and the receiving groove 713 includes an opening for the bearing 753 to be installed. The accommodating groove 713 is arranged in this way, which can well prevent sundries from entering the accommodating groove 713 , so as not to affect the smooth running of the bearing 753 . The number of the bearings 753 is two, and they are arranged side by side in the axial direction. Arranging two bearings 753 side by side can effectively increase the stability of the filter structure 7 . One end of the fixed shaft 752 away from the bearing 753 is detachably mounted on the mounting bracket 75 . The length of the bearing mounting bracket 79 can be adjusted according to the actual situation. Specifically, the bearing mounting bracket 79 can extend to the first end 711 of the filter structure 7 or even exceed the first end 711, so that the length of the fixed shaft 752 can be reduced, or the Adapt to a relatively short filter structure7. Even if the bearing mounting bracket 79 is longer, as long as the first end 711 of the filter structure 7 is suspended relative to the mounting bracket 75 or other fixed structures and the two move relative to each other, it can be understood that the filter structure 7 is rotatably mounted through the second end 712 .

8, 11 and 12, the filter structure 7 includes a first end 711 close to the air outlet 123 and a second end 712 away from the air outlet 123, the outer periphery of the first end 711 is provided with a shield extending outward in the radial direction plate 77. The dust cup assembly also includes a filter bracket, the protective plate 77 and the filter bracket are in clearance fit, and a tortuous channel is formed between the two to prevent dust and hair from entering.

The filter structure 7 can be driven by a driving member. In some implementations, referring to FIGS. 6-10 , the filter structure 7 is provided with a fan 8 , and the fan 8 rotates by the airflow flowing out of the air outlet 123 , thereby driving the filter structure 7 to rotate. The fan includes a plurality of fan blades, and the fan blades can be arranged inside the first filter, and can also be arranged on the outer circumference of the first filter, that is, the outer circumference of the filter screen. Further, the fan blade can also be integrally formed with the guide rib, that is, the guide rib plays the role of the fan blade. The guide rib can drive the first filter to rotate under the action of the airflow. The fan 8 includes a proximal end 84 close to the rotation axis P and a distal end 83 away from the rotation axis P in the radial direction. The proximal end 84 of the fan 8 is suspended relative to the mounting bracket 75 . In an implementation manner, the fan 8 may be annular, and the center of the fan 8 is a hollow structure, which is convenient for objects to pass through. The fan 8 includes a plurality of fan blades 81. Both ends of the fan blades 81 are fixed to the corresponding circular rings, and the space defined by the inner circular ring can ensure that objects can pass through freely. Further, the fan 8 includes a plurality of fan blades 81 , and the proximal ends 84 of the plurality of fan blades 81 are all suspended in the air. In one embodiment, the fan blades 81 can be directly formed on the filter frame 71 . In another implementation manner, the fan 8 may be a separately manufactured part, and after the fan 8 is manufactured, it may be fixed to the inner side or outer side of the filter frame 71 by means of clamping, gluing or ultrasonic welding. The fan blade 81 adopts a suspended manner, which can increase the air circulation area on the one hand, and can effectively prevent hair from being entangled on the fan blade 81 on the other hand.

13 is a cross-sectional view of a dust cup assembly in another embodiment. FIG. 14 is a schematic structural diagram of a filtering structure in another embodiment. Referring to FIGS. 13 and 14 , the structure in this embodiment can adopt the structure described in the above-mentioned embodiment except that the installation manner of the filter structure 7 is different from that in other embodiments. Referring to FIGS. 13-14 , in another implementation manner, the outer periphery of the filter structure 77 is provided with an outer bearing 82 , which is installed at the air outlet 123 through the outer bearing 82 . In this way, the interior of the filter structure 77 is basically empty, and the hair is not entangled basically, and the reliability of the filter structure 77 is improved.

Referring to FIGS. 6 and 7 , a baffle plate 9 extending in the dust collection chamber 13 is provided at the ash throwing port 14 to prevent part of the dirt in the dust collection chamber 13 from being drawn back into the cyclone separation chamber 12 . Since the filter structure 7 in the ash throwing port 14 is relatively close, in order to prevent the dust in the dust collecting chamber 13 from being drawn into the cyclone separation chamber 12 , the ash throwing port 14 is provided with a baffle plate 9 extending in the dust collecting chamber 13 . The baffle 9 can be a straight baffle 9 or a curved baffle 9, and the suspended end of the baffle 9 can be inclined toward the bottom of the dust collecting chamber 13 to achieve a better anti-retraction effect. In order to further prevent the hair in the dust collecting chamber 13 from being drawn back into the cyclone separation chamber 12 , at least one protrusion protruding toward the bottom of the dust collecting chamber 13 is provided on the side of the baffle 9 facing the bottom of the dust collecting chamber 13 92. In this way, after the hair enters the dust collecting chamber 13, due to the disturbance of the air flow, the hair will first go to the bottom of the baffle 9, and a part of the hair may return to the ash throwing port 14 along the edge of the baffle 9. There are protrusions 92 under the hood, especially a plurality of protrusions 92 arranged separately, which can effectively fix hair and dust to the protrusions 92 and prevent them from being pulled back.

In other implementations, the filter structure 7 can also be driven by a motor, the peripheral wall of the filter structure 7 can be provided with gear teeth, and the motor is arranged on one side of the filter structure 7 to drive 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, in this way, the inner space of the filter structure 7 can also be free from obstructions and the failure rate can be reduced. It can be understood that, the filter structure 7 may also be driven by the driving member in other transmission modes, which will not be described in detail here.

In one embodiment, the filter structure 7 includes a first end 711 close to the air outlet 123 and a second end 712 away from the air outlet 123, with the other structures remaining unchanged, with the direction extending along the rotation axis P as the height direction, and the first end 711 is higher than the second end 712, the lowest point of the second end 712 in the height direction is higher than the bottom of the ash throwing port 14 and lower than the top of the ash throwing port 14, this situation is suitable for a relatively short height dust cup. This embodiment is not shown in the figure, but referring to FIG. 6 , L1 shown in FIG. 6 is located below L2 , that is, the lowest point L1 of the filtering mechanism is lower than the lowest point L2 of the ash throwing port 14 . In this embodiment, L1 should be located above L2.

In one embodiment, with other structures remaining unchanged, the filter structure 7 includes a first end 711 close to the air outlet 123 and a second end 712 away from the air outlet 123, with the height along the direction extending along the rotation axis PP as the height direction, and the first end 711 is higher than the second end 712, the lowest point of the second end 712 in the height direction is basically the same as the bottom of the ash throwing port 14, that is, L1 should be basically the same as L2, which is suitable for higher heights. dust cup.

In one embodiment, with other structures remaining unchanged, the projection of the portion of the filter screen 74 toward the location of the ash throwing port 14 along the direction perpendicular to the rotation axis P of the filtering structure falls into the area where the ash throwing port 14 is located.

15 is a schematic structural diagram of a dust cup assembly in still another embodiment of the present invention. FIG. 16 is an enlarged view of the B region in FIG. 15 . FIG. 17 is an enlarged view of the region C in FIG. 15 . Fig. 18 is a diagram showing the relative positional relationship among the filter structure, the blocking member and the mounting frame. FIG. 19 is a schematic structural diagram of an annular brush in an embodiment. In this embodiment, the structure of the dust cup assembly 1 can be basically the same as the structures in the other embodiments described above, the difference is that a blocking member 721 is added between the first end 711 of the filter structure 7 and the mounting bracket 75, while the The baffle 9 at the ash port 14 has been improved to some extent. The specific structure is as follows:

15-18, the cyclone chamber 12 of the dust cup assembly 1 includes an air inlet and an air outlet. The dust cup assembly further includes a filter structure 7 disposed at the air outlet. The filter structure 7 is rotatably mounted to the mounting frame 75 for filtering the airflow before being discharged from the air outlet. The filter structure 7 includes a first end 711 close to the air outlet. With the second end 712 away from the air outlet, the first end 711 of the filter structure 7 and the mounting bracket 75 are in clearance fit. In order to prevent dust from entering the inside of the filter from the gap as much as possible, a blocking member 721 may be provided at the gap. Specifically, the blocking member 721 is disposed on one of the filtering structure 7 or the mounting bracket 75, and is in an interference fit with the other. The blocking member 721 can be disposed on the mounting frame 75, and the blocking member 721 is in an interference fit with the filter structure 7. When the filtering structure 7 rotates, the blocking member 721 does not move. The blocking member 721 can also be installed on the filter structure 7 and rotate together with the filtering structure 7 , and the blocking member 721 is in an interference fit with the mounting frame 75 to prevent dust from entering the gap. The blocking member 721 can be a relatively soft annular leather strip, and can also be an annular brush 721 . Referring to FIG. 19 , the brush 721 includes an annular plate 722 and a plurality of bristles 723 disposed on the annular plate 722 , and a plurality of outwardly extending bristles 723 are disposed on the annular plate 722 . The bristles 723 can be made of soft materials. After the soft bristles 723 are in contact with the mounting frame 75 or the filter structure 7, the frictional force generated is small, and the rotation of the filter structure 7 is basically not affected. Matching, effectively prevent dust from entering the gap between the two.

15-19, the outer periphery of the first end 711 is provided with a protective plate 77 extending outward in the radial direction. The protective plate 77 extends in the radial direction, and the protective plate 77 and the mounting bracket 75 are in clearance fit and a channel is formed between the two. The protective plate 77 can effectively prevent hair and the like from entering the channel. An annular groove is defined between the protective plate 77 and the filter frame of the filter structure 7, which can further prevent hair and the like from being entangled. The protective plate 77 includes an axially extending body and a radially extending shielding portion. An accommodating space is defined between the main body and the shielding portion where the blocking member 721 can be placed. In order to effectively prevent dust from entering the channel, at least part of the blocking member 721 is located in the channel. The blocking member 721 is disposed on the first end 711 of the filter structure 7 . The blocking member 721 may be disposed above the protective plate 77 , and part of the blocking member 721 protrudes from the protective plate 77 in the radial direction, extends into the channel, and is in an interference fit with the mounting bracket 75 . A retaining ring 724 protruding downward is provided on the mounting bracket 75 , and a channel is defined between the protective plate 77 and the retaining ring 724 . The retaining ring 724 is higher than the protective plate 77 , and part of the blocking member 721 is located below the retaining ring 724 . Specifically, the blocking member 721 is provided between the protective plate 77 and the mounting bracket 75 . Especially when the brush 721 is used, some of the bristles 723 are pressed against the inner side of the retaining ring 724, and some of the bristles 723 protrude to the lower side of the retaining ring 724, which can effectively prevent dust from entering.

Referring to FIGS. 15 and 17 , the dust cup assembly 1 further includes a dust collection chamber 13 communicating with the cyclone chamber 12 through the ash throwing port 14 . A baffle plate 9 is provided at the ash throwing port 14 , and the baffle plate 9 is inclined to the bottom of the dust collecting chamber 13 . The baffle 9 is an arc baffle 9 . The oblique design of the baffle 9 , especially the arc-shaped design, can effectively guide dust into the dust collection chamber 13 . A protrusion 92 is provided below the baffle 9 , and the protrusion 92 can effectively prevent hairs and the like from being drawn back into the cyclone separation chamber 12 .

The dust cup assembly in any of the above embodiments can be used for related surface cleaning equipment such as floor sweeping robots, horizontal vacuum cleaners, upright vacuum cleaners or mite removal instruments. Can be other indoor or outdoor cleaning equipment.

Although the embodiment of the present invention has been disclosed as above, it is not limited to the application listed in the description and the embodiment, and it can be applied to various fields suitable for the present invention. Additional modifications may readily be effected, therefore, the invention is not limited to the specific details and illustrations herein shown and described without departing from the general concept defined by the claims and the scope of equivalents.

Claims (10)

1. A dirt cup assembly, comprising:

a cyclone chamber comprising an air inlet and an air outlet;

a filter structure disposed at the air outlet, the filter structure being rotatably mounted to a mounting bracket for filtering the air flow before exiting the air outlet, the filter structure including a first end proximate the air outlet and a second end distal from the air outlet, the first end of the filter structure being in clearance fit with the mounting bracket;

and the blocking piece is arranged in one of the filtering structure or the mounting frame and is in interference fit with the other one.

2. The dirt cup assembly of claim 1,

the periphery of the first end is provided with a protection plate which extends outwards along the radial direction; the guard plate and the mounting frame are in clearance fit, a channel is formed between the guard plate and the mounting frame, and at least part of the blocking piece is located in the channel.

3. The dirt cup assembly of claim 2,

the mounting frame is provided with a check ring protruding downwards, and a channel is defined between the protection plate and the check ring.

4. The dirt cup assembly of claim 3,

the retainer ring is higher than the guard plate, and part of the blocking member is located below the retainer ring.

5. The dirt cup assembly of claim 1, comprising:

the barrier is disposed at a first end of the filter structure.

6. The dirt cup assembly of claim 1,

the blocking piece is an annular brush; the brush includes a plurality of outwardly extending bristles.

7. The dirt cup assembly of claim 1,

the blocking piece is arranged between the protection plate and the mounting frame.

8. The dirt cup assembly of claim 5,

the dust cup assembly also comprises a dust collecting chamber communicated with the cyclone separation chamber through an ash throwing port; and a baffle is arranged at the ash throwing port and inclines towards the bottom of the dust collecting chamber.

9. The dirt cup assembly of claim 8,

the baffle is an arc baffle.

10. A surface cleaning apparatus comprising a fan assembly for generating a suction airstream and a dirt cup assembly as claimed in any one of claims 1 to 9.

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