CN215605396U - Dirt cup subassembly and dust catcher - Google Patents

Abstract

The utility model provides a dust cup assembly and a dust collector, wherein the dust cup assembly comprises a dust cup and a dust-air separating piece, and a dust collecting cavity is enclosed by the dust cup and the dust-air separating piece; an air inlet surface is arranged on one side of the dust-gas separating piece facing the dust collecting cavity, a plurality of separating channels are also arranged on the dust-gas separating piece and are arranged at intervals, and the separating channels are communicated with the inner side and the outer side of the dust collecting cavity; each separation channel is bent, so that the dust-laden air can be deflected after impacting the inner wall surface of the separation channel and is separated from foreign matters in the dust-laden air. The dust cup assembly provided by the utility model has a larger dust containing cavity body, and can prevent hairs from being wound and fixed in the dust cup.

Description

Dirt cup subassembly and dust catcher

Technical Field

The utility model relates to the technical field of dust collectors, in particular to a dust cup assembly and a dust collector.

Background

The dust collector is a dust removal device frequently used for indoor cleaning, is mainly used for cleaning foreign matters such as dust, hair and the like at positions such as floors, carpets, furniture, curtains, narrow edges and narrow corners and the like, and has good cleaning effect and high cleaning efficiency.

In the prior art, a dust collector comprises a dust collector main machine and a dust cup assembly connected with the dust collector main machine, the dust cup assembly comprises a dust cup and a cyclone cone, an air inlet of the dust collector main machine is communicated with the dust cup, the cyclone cone is located in the dust cup, and the cyclone cone is a cylindrical structural member with a through hole in the side wall. After the host machine of the dust collector is started, air with dust enters the dust cup through the air inlet, and the air with dust rotates around the cyclone cone and is separated from the dust.

However, the cyclone cone protrudes into the dust cup, and the volume of the dust cup for depositing foreign matters becomes small. And when the dust collector works, strips such as hairs and cords in the dust-laden air are usually tightly wound on the cyclone cone, and the user is difficult to clean the wound hairs from the cyclone cone.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, embodiments of the present invention provide a dust cup assembly and a dust collector having a large dust holding cavity and capable of preventing hairs from being entangled and fixed inside the dust cup.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

a first aspect of an embodiment of the present invention provides a dirt cup assembly, including a dirt cup and a dirt-gas separator, the dirt cup and the dirt-gas separator enclosing a dirt collection chamber; one side of the dust-gas separating piece, which faces the dust collecting cavity, is provided with an air inlet surface, the dust-gas separating piece is also provided with a plurality of separating channels, the separating channels are arranged at intervals, one end of each separating channel penetrates through the air inlet surface, and the other end of each separating channel penetrates through the outer wall surface of the dust-gas separating piece so as to communicate the inner side and the outer side of the dust collecting cavity; each separation channel is bent, so that the dust-laden air can be deflected after impacting the inner wall surface of the separation channel and is separated from foreign matters in the dust-laden air.

That is, the dust-air separation is realized by the mutual collision between the dust-carrying air and the inner wall surface of the separation channel in the embodiment, wherein the speed is changed after the heavy foreign matters collide the inner wall surface of the separation channel, the foreign matters fall into the dust collection cavity again along the separation channel under the action of the self gravity, and the separated gas is discharged out of the dust collection cavity along the separation channel.

Meanwhile, a protruding cyclone structure in the prior art is not arranged in the embodiment, so that the volume of the dust cup for depositing the foreign matters is large, and the dust cup can be used for accommodating more foreign matters. And because this embodiment does not adopt the whirlwind dust removal mode, the dust catcher during operation, foreign matter such as hair can not follow the circumferential direction rotation of dirt cup when the collection dirt intracavity flows towards the dirt gas separator, has just also avoided foreign matter such as hair to twine and fix on the internal face in collection dirt chamber, easily user's clearance.

In some alternative embodiments, a plurality of baffle projections are provided on an inner wall surface of the separation channel; the plurality of baffling protrusions are arranged at intervals along the flow direction of the dust-laden air, and the plurality of baffling protrusions are arranged on two opposite sides of the separation channel in a staggered mode.

Wherein, a plurality of baffling protruding multiplicable air current's flow path to make the air that takes dust turn to many times, like this, the dust and air separation effect is better.

In some optional embodiments, the plurality of baffling protrusions include a first protrusion and a second protrusion, and the first protrusion and the second protrusion are respectively arranged at two ends of the separation channel, so that effective dust-gas separation can be realized through the baffling protrusions with a small number, the structure of the dust-gas separation piece is simplified, the separation channel is prevented from being blocked, and the manufacturing cost is reduced.

In some alternative embodiments, the separation channel extends in a first direction, the first protrusion has a first projection in the first direction on the air intake surface, and the second protrusion has a second projection in the first direction on the air intake surface; the edge of the first projection and the edge of the second projection coincide with each other, or the first projection and the second projection are spaced apart. Therefore, not only can effective dust-gas separation be realized, but also the blockage of the separation channel can be avoided.

In some alternative embodiments, the first protrusion has a dust guide surface disposed on a downstream side of the first protrusion in a flow direction of the dust-laden air, the dust guide surface being disposed obliquely toward a side of the dust collecting chamber.

Therefore, foreign matters such as dust deposited on the first protrusion can move along the dust guide surface and fall into the dust collection cavity, and the foreign matters are prevented from being accumulated in the separation channel and blocking the separation channel.

In some alternative embodiments, the dirt cup assembly further includes a filter member disposed on a side of the dirt-gas separator member outside the dirt collection chamber, the filter member having a filter aperture smaller than the aperture of the outlet end of the separation passage.

Therefore, the gas separated by the dust-gas separating piece can be secondarily filtered by the filter piece, and the dust-gas separating effect is optimized.

In some alternative embodiments, the filter element and the dust-air separator element are spaced apart. Like this, filter the clearance between piece and the dirt gas separation piece and can constitute and mix the wind clearance, filter the whole all can filter gas, and the filter effect is better.

In some alternative embodiments, the dirt cup assembly further comprises a sealing ring and a securing member; the inner wall surface of the dust cup is provided with a first fixed step, and the fixing piece is used for pressing and fixing the dust-air separating piece on the first fixed step; the sealing ring is arranged between the fixed piece and the dust cup or between the dust-air separating piece and the dust cup.

Like this, can fix dirt gas separator on the dirt cup through the mounting, the sealing washer can seal the hookup location department between dirt gas separator and the dirt cup to avoid dirt cup subassembly gas leakage.

In some alternative embodiments, the fixture has a flow aperture therethrough, and the plurality of separation channels are exposed at the flow aperture; the outer wall surface of the fixing piece is provided with a containing groove, and the sealing ring is arranged in the containing groove and is abutted against the inner wall surface of the dust cup.

Namely, the fixing piece is connected with the inner wall surface of the dust cup through the circumferential outer edge of the fixing piece, and the fixing stability is high.

In some alternative embodiments, the fixture is an interference fit with the dirt cup, which facilitates assembly.

In some alternative embodiments, the dust cup is provided with an air inlet which is communicated with the inner side and the outer side of the dust cup and is used for introducing the dust-carrying air, and the dust-air separating piece is positioned above the air inlet. Thus, in the flowing process of the dust-carrying air, the foreign matters can be settled under the action of the gravity of the foreign matters, and the gas is discharged through the dust-gas separating piece above the foreign matters. After the dust and the air are separated, the foreign matters and the air can have different flowing directions, and the dust and the air separation effect is good.

In some optional embodiments, the dust cup assembly further includes a dust blocking member disposed in the dust cup and corresponding to the air inlet, one end of the dust blocking member along the circumferential direction of the dust cup is connected to an inner wall surface of the dust cup, and an air outlet gap is formed between the other end of the dust blocking member along the circumferential direction of the dust cup and the inner wall surface of the dust cup to guide the air with dust to wind around along the circumferential direction of the dust cup.

Thus, when the dust cup assembly has an inclined angle, for example, the dust collector is in a stop state, the dust blocking piece can prevent foreign matters such as dust in the dust cup from being discharged out of the dust cup through the air inlet. Meanwhile, the dust blocking piece can prevent air with dust in the dust collecting cavity from being discharged through the air inlet. Simultaneously, the dust blocking piece also plays a guiding role for guiding the air with dust to wind in the dust collecting cavity in a rotating way, so that the air with dust can collide with the inner wall surface of the dust collecting cavity in the process of winding the air with dust, the dust and the air are separated preliminarily, and the dust and air separating effect of the dust cup assembly is optimized.

A second aspect of an embodiment of the present invention provides a vacuum cleaner, which includes a vacuum cleaner main body and the dust cup assembly of the first aspect.

The dust collector provided by the embodiment uses the dust cup assembly, so that the dust collector has a larger dust containing cavity to contain more foreign matters, and meanwhile, hair can be prevented from being wound and fixed in the dust cup.

In addition to the technical problems, technical features constituting technical solutions and advantages brought by the technical features of the technical solutions described above, other technical problems, technical features included in technical solutions and advantages brought by the technical features solved by the dust cup assembly and the dust collector provided by the embodiments of the present invention will be further described in detail in the detailed description.

Drawings

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

FIG. 1 is a schematic structural view of a dirt cup assembly provided in an embodiment of the present invention;

FIG. 2 is an exploded view of the dirt cup assembly of FIG. 1;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 1;

FIG. 4 is a partial schematic view of portion B of FIG. 3;

FIG. 5 is a first schematic view of the first dust-gas separator of FIG. 1;

FIG. 6 is a second schematic view of the dust-gas separating element of FIG. 1;

FIG. 7 is a cross-sectional view taken along line C-C of FIG. 5;

fig. 8 is a partial schematic view of portion D of fig. 7.

Reference numerals:

1: a dirt cup assembly;

10: a dust cup; 11: an air inlet; 12: a dust collection chamber;

20: a dust-gas separating member; 21: an air inlet surface; 22: a separation channel; 23: a baffling bulge; 231: a dust guiding surface; 23 a: a first protrusion; 23 b: a second protrusion;

30: a filter member;

40: a dust blocking member;

50: a seal ring;

60: a fixing member;

70: an upper cover; 71: an air outlet;

h: the air mixing gap.

Detailed Description

In order to make the aforementioned objects, features and advantages of the embodiments of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the prior art, in order to separate dust and air, a cyclone structure, such as a cyclone cone, is usually arranged in a dust cup, the cyclone structure is suspended in an inner cavity of the dust cup, and a dust collection cavity is formed by a space between an inner wall surface of the dust cup and an outer wall surface of the cyclone structure. When the dust collector works, foreign matters such as separated dust and hair rotate around the cyclone structure, so that the foreign matters such as the hair are easy to wind and fix on the cyclone cone, and a user is difficult to take the hair off the cyclone cone.

In view of this, the dirt cup subassembly in this application embodiment has changed the dirt gas separation mode, and the cyclone cone is got rid of to the dirt cup subassembly, has set up the dirt gas separator who has the separation channel of buckling, and the dust and gas separation is realized through striking the separation channel internal face to the air that takes dirt, and simultaneously, the dust and gas separator is located the smooth air inlet face that has of dust collection chamber one side, and like this, there is not the protruding structure of suspension in the dust collection chamber, has avoided foreign matter winding such as hair to fix inside the dirt cup.

Fig. 1 is a schematic structural diagram of a dirt cup assembly according to an embodiment of the present invention. Figure 2 is an exploded view of the dirt cup assembly of figure 1. Fig. 3 is a cross-sectional view taken along a-a in fig. 1. Fig. 4 is a partial schematic view of portion B of fig. 3. Fig. 5 is a first schematic structural view of the dust-gas separating element in fig. 1. Fig. 6 is a second schematic structural view of the dust-gas separating element in fig. 1. Fig. 7 is a cross-sectional view taken along line C-C of fig. 5. Fig. 8 is a partial schematic view of portion D of fig. 7.

Referring to fig. 1 to 8, the present embodiment provides a dust cup assembly, which includes a dust cup 10 and a dust-air separating member 20, wherein the dust cup 10 and the dust-air separating member 20 enclose a dust collecting chamber 12.

Specifically, the dust cup assembly 1 is applied to a dust collector, and is used for performing dust-air separation on dust-laden air sucked by the dust collector, collecting the separated foreign matters and discharging clean air.

The dirt cup assembly 1 includes a dirt cup 10 and a dirt-gas separator 20. The dust cup 10 is a hollow container-shaped structure, one end of the dust cup 10 is open, and the dust-air separating element 20 is disposed at the open end of the dust cup 10 and encloses a dust collecting cavity 12 with the dust cup 10.

The dust cup 10 is provided with an air inlet 11, and the air inlet 11 is communicated with the inner side and the outer side of the dust cup 10 and is used for introducing air with dust into the dust collection cavity 12. After the vacuum cleaner is started, the air pressure in the dust cup 10 is less than the air pressure, and the dust-laden air is sucked into the dust cup 10 through the air inlet 11 and filled in the dust cup 10. The side wall of the dirt cup 10 is typically smooth to facilitate the flow of dirt-laden air.

The end of the dust cup 10 opposite to the dust-air separating element 20 is provided with an openable dust outlet, which is opened to discharge the dust, hair and other foreign matters deposited in the dust collecting chamber 12. Optionally, in order to improve the strength of the dirt cup 10, a protruding rib may be provided on the inner wall surface of the dirt cup 10.

The dust cup 10 can be made of transparent material, so that the user can observe the accumulation condition of foreign matters such as dust in the dust cup 10 conveniently, and the foreign matters are prevented from remaining.

Wherein the air inlet 11 can be located at different positions of the dirt cup 10. Optionally, the dust-air separating member 20 is located above the air inlet 11. Thus, the foreign matters and the air separated by the dust-air separating member 20 can have different flowing directions, wherein the foreign matters can fall back into the dust cup 10 under the action of self gravity, and the air is discharged upwards out of the dust collecting cavity 12 through the dust-air separating member 20, so that the dust-air separating effect is better.

An air inlet surface 21 is arranged on one side of the dust-gas separating piece 20 facing the dust collecting cavity 12, a plurality of separating channels 22 are further arranged on the dust-gas separating piece 20, the separating channels 22 are arranged at intervals, one end of each separating channel 22 penetrates through the air inlet surface 21, and the other end of each separating channel 22 penetrates through the outer wall surface of the dust-gas separating piece 20 so as to communicate the inner side and the outer side of the dust collecting cavity 12; each of the separation passages 22 is bent to cause the dust-laden air to collide with the inner wall surface of the separation passage 22 and turn around, and to be separated from the foreign matter in the dust-laden air.

The dust-air separating member 20 is disposed at the other end of the dust cup 10 opposite to the dust discharge port, and is hermetically connected to the dust cup 10. The dust-gas separating member 20 may be a plate-shaped structure member, and has a simple structure and is easy to form.

The thickness of the dust-gas separating member 20 may be 6mm to 8mm, so as to avoid poor dust-gas separating effect due to the small thickness of the separating member, or to avoid easy blockage of the separating passage 22 due to the large thickness of the separating member.

The dust-air separating member 20 may be made of plastic, such as Acrylonitrile Butadiene Styrene (ABS) plastic, which has a low weight and high strength.

In some alternative embodiments, referring to fig. 3 and 4, the dirt cup assembly further includes a sealing ring 50 and a fixing member 60, the fixing member 60 is used for fixing the dirt-gas separator 20 to the dirt cup, and the sealing ring 50 is used for sealing the connection position between the dirt-gas separator 20 and the dirt cup to prevent dust leakage from the dirt cup 10.

Specifically, a first fixed step is provided on the inner wall surface of the dust cup 10, and the fixing member 60 is configured to press-fit and fix the dust-gas separating member 20 on the first fixed step, at this time, the circumferential edge of the dust-gas separating member 20 is in contact with the first fixed step, the contact area between the first fixed step and the circumferential edge of the dust-gas separating member 20 is large, and the fixing stability of the dust-gas separating member 20 is high.

The sealing ring 50 is disposed at a different position according to the structure of the fixing member 60, and the fixing member 60 may be a screw fastener, for example, in which the sealing ring 50 is disposed between the dust and air separating member 20 and the dust cup 10.

In some alternative embodiments, the fixing member 60 has a through hole, and the plurality of separating passages 22 are exposed at the through hole, i.e., the fixing member 60 has a ring shape, an end surface of the fixing member 60 is used for press-fitting and fixing the dust and air separating member 20, and an outer wall surface of the fixing member 60 is in contact with an inner wall surface of the dust cup 10.

The fixing member 60 has a receiving groove formed on an outer wall surface thereof, and the seal ring 50 is disposed in the receiving groove and abuts against an inner wall surface of the dirt cup 10. The sealing ring 50 is typically an elastomeric member, and the sealing ring 50 can be pressed against the inner wall surface of the dirt cup 10 to effect a seal.

Of course, when the thickness of the dust-air separating member 20 is large, the packing 50 may be disposed between the dust-air separating member 20 and the dust cup 10.

Wherein the ring-shaped securing member 60 may be attached to the dirt cup 10 by a threaded fastener. In some alternative embodiments, the fixing member 60 is an interference fit with the dirt cup 10, and is simple in structure and easy to assemble.

The wall surface of the dust-gas separating piece 20 facing the dust collecting chamber 12 is an air inlet surface 21, the dust-gas separating piece 20 is provided with a communicating hole, the inner cavity of the communicating hole forms a separating channel 22, one end of the separating channel 22 penetrates through the air inlet surface 21, and the other end penetrates through the outer wall surface of the dust-gas separating piece 20, so that the dust collecting chamber 12 is communicated with the outside through the separating channel 22.

The air intake surface 21 may be a flat surface (as shown in fig. 3 and 7), a convex spherical surface (not shown), or the like.

Wherein, the separation channel 22 is provided in plurality, and the separation channels 22 are arranged at intervals to increase the communication area between the dust collection chamber 12 and the outside. The cross-sectional shape of the separation channel 22 may be circular, rectangular, or other shape.

The plurality of separation channels 22 may be arranged in a horizontal or vertical direction (not shown), or the plurality of separation channels 22 may be arranged in a circular shape along the circumferential direction of the dirt cup 10 (as shown in fig. 5 and 6), but the present embodiment is not limited thereto.

For dust-air separation of the dust-laden air, the separation channel 22 is arranged in a bent manner, i.e. the extension direction of the separation channel 22 is a non-linear direction. After the dust-laden air enters the separation channel 22, the gas is deflected after striking the inner wall surface of the separation channel 22. Since the weight of the foreign matters such as dust and hair in the dust-laden air is greater than the weight of the gas molecules, the inertial force of the foreign matters is also greater than the inertial force of the gas molecules, the foreign matters directly impact the inner wall surface of the separation channel 22 due to the inertia of the foreign matters, and the gas turns along the separation channel 22. Thus, the flow path of the foreign matter and the air is changed to separate the dust and the air. Wherein the foreign matter can fall under its own weight along the separating channel 22 into the dust chamber 12 to achieve collection of the foreign matter in the dust cup 10.

The separation channel 22 may have one or more bends, which are not limited herein.

That is, in the dust cup assembly 1 provided in the present embodiment, by adopting the collision type dust-air separating manner, the dust-laden air entering the dust collecting chamber 12 through the air inlet 11 flows toward the dust discharging opening side, and then turns and flows upward toward the dust-air separating member 20 side, and since no cyclone structure is provided, the dust-laden air does not rotate around the circumferential direction of the dust cup 10 during the flow toward the dust-air separating member 20. Thus, even if the air intake surface 21 protrudes from the dust/air separating member 20, foreign matter such as hair does not get entangled with the dust/air separating member 20. After the dust collector is stopped, foreign matters such as dust, hair and the like can be deposited at the position of the dust exhaust port, and the dust collector is easy to clean.

The dust-air separating piece 20 has a smaller volume, the size of the inner cavity of the dust cup 10 occupied by the dust-air separating piece 20 is smaller, and the volume of the dust collecting cavity 12 enclosed by the dust-air separating piece 20 and the dust cup 10 is larger, so that the dust cup assembly can have a larger dust containing cavity to contain a larger volume of foreign matters.

It will be understood that the separation passage 22 is constituted by an inner cavity of a communication hole formed in the dust-gas separating member 20. The communication hole may be bent to allow the separation channel 22 to be bent, for example, the communication hole may be bent in a serpentine shape or may be arranged in a spiral shape, and the separation channel 22 may be bent in a serpentine shape or may be arranged in a spiral shape.

In some alternative embodiments, the communication hole may also extend in a straight direction, in which case, a plurality of baffle projections 23 are provided on the inner wall surface of the separation channel 22; the plurality of baffle projections 23 are provided at intervals in the flow direction of the dust-laden air, and the plurality of baffle projections 23 are provided alternately on opposite sides of the separation passage 22. Thus, the separation passage 22 is formed by partitioning the inner cavity of the communication hole by the plurality of baffle projections 23.

The baffle projection 23 may be fixed to the inner wall surface of the separation passage 22 by means of bonding, snap-fitting, or the like. Alternatively, the baffle projection 23 is integrally formed with the dust-air separating member 20, and is easy to manufacture.

The baffle projections 23 may be identical in structure or different in structure. For ease of manufacture, the plurality of baffle projections 23 may have the same structure, and the height of projection of the plurality of baffle projections 23 from the inner wall surface of the separation passage 22 is the same.

Of course, when the communication hole is bent, one or more deflecting protrusions 23 may be provided in the communication hole to disturb the dust-laden air sufficiently to make the dust-laden air collide with the inner wall surface of the separation passage 22.

The number of the baffle projections 23 may be set according to the structure of the communication holes. Specifically, when the communication hole is bent, the baffle protrusion 23 may be one or more. When the communication holes extend in a straight direction, the baffle projections 23 are at least two to prevent a part of the dust-laden air from being discharged out of the dust collecting chamber 12 without colliding with the inner wall surface of the separation passage 22.

In some optional embodiments, the plurality of baffle protrusions 23 include a first protrusion 23a and a second protrusion 23b, and the first protrusion 23a and the second protrusion 23b are respectively disposed at both ends of the separation channel 22, so that the present invention can be applied to different kinds of communication hole structures, and by the smaller number of baffle protrusions 23, effective dust-gas separation can be achieved, the structure of the dust-gas separating member 20 is simplified, and the manufacturing cost of the dust-gas separating member 20 is reduced.

In some alternative embodiments, taking the separation channel 22 as an example extending in a straight direction, for convenience of description, the straight direction may be a first direction, the first direction may be a vertical direction, or the first direction and the vertical direction have an acute angle therebetween, so that the separation channel 22 extends obliquely upward.

For convenience of explanation, referring to fig. 7 and 8, the first protrusion 23a is disposed at an end of the separation passage 22 near the dust collecting chamber 12. The first projection 23a and the second projection 23b are provided at the inlet end and the outlet end of the separation passage 22, respectively, so that the second projection 23b is provided corresponding to the inlet end of the separation passage 22 and the first projection 23a is provided corresponding to the outlet end of the separation passage 22.

After the dust-laden air enters the separation passage 22, the dust-laden air is primarily deflected after colliding with the second projection 23 b. At this time, part of the foreign matter collides with the second projection 23b and then falls into the dust collecting chamber 12 through the inlet end of the separating passage 22 by its own weight. The primarily diverted air flow then collides with the side wall surface of the separation passage 22 and is again diverted. At this time, part of the foreign matter collides against the inner wall surface of the separation passage 22 and then falls on the first projection 23a by its own weight. The redirected gas is discharged out of the dust collecting chamber 12 via the outlet end of the separation channel 22.

Wherein, considering the small size of the dust cup 10 and the dust-gas separating member 20, the inner diameter of the separating passage 22 is also small, and the inner diameter of the separating passage 22 may be 6mm to 8 mm. The height of the baffle projection 23 projecting from the inner wall surface of the separation channel 22 may be less than or equal to half the inner diameter of the separation channel 22, for example, the height of the baffle projection 23 may be 3mm to 4mm, so as to prevent the separation channel 22 from being clogged with foreign matters due to a small distance between the free end of the baffle projection 23 and the inner wall surface of the separation channel 22.

Specifically, the first protrusion 23a has a first projection along the first direction on the air intake surface 21, and the second protrusion 23b has a second projection along the first direction on the air intake surface 21; the edge of the first projection and the edge of the second projection coincide with each other, or the first projection and the second projection are spaced apart.

When the edges of the first projection and the second projection coincide, the edges of the first projection 23a and the second projection 23b are aligned. When there is a gap between the edge of the first projection and the edge of the second projection (as shown in fig. 8), the height of at least one of the first projection 23a and the second projection 23b is less than half of the inner diameter of the separation channel 22, so as to avoid the blockage caused by the small size of the inlet end and the outlet end of the separation channel 22.

In some alternative embodiments, a wall surface of one of the first projection 23a and the second projection 23b adjacent to the dust collecting chamber 12 constitutes part of the air intake surface 21.

That is, the wall surface of the first protrusion 23a near the dust collecting chamber 12 is flush with the air inlet surface 21, and the wall surface of the first protrusion 23a near the dust collecting chamber 12 forms part of the air inlet surface 21. Therefore, the dust-air separating piece 20 has no sunken step structure at the position corresponding to the first protrusion 23a, the side wall surface of the dust-air separating piece 20 facing the dust collecting cavity 12 is smooth, foreign matters such as hair are prevented from being hung on the air inlet surface 21 of the dust-air separating piece 20, and the foreign matters such as hair are prevented from being wound and fixed on the dust-air separating piece 20 in the winding process.

It will be understood that the foreign matter, which has hit the inner wall surface of the separation passage 22, is settled by its own weight, wherein a part of the foreign matter falls on the baffle projection 23. In some alternative embodiments, in order to easily collect the foreign matters in the dust collecting chamber 12 and prevent the separation passage 22 from being blocked, the deflecting protrusion 23 may be provided with a dust guide surface 231, the dust guide surface 231 may be disposed at a downstream side of the deflecting protrusion 23 in a flow direction of the dust-laden air, and the dust guide surface 231 may be disposed to be inclined toward a side of the dust collecting chamber 12.

That is, one end of the dust guide surface 231 is connected to the inner wall surface of the separation passage 22, and the other end is inclined toward the dust collection chamber 12. Through setting up the inclined dust surface 231 of leading, the foreign matter can lead the dust surface 231 to remove relatively under self action of gravity, until breaking away from and leading dust surface 231, has just also avoided leading too much deposit foreign matter on the dust surface 231, avoids separation channel 22 to block up.

Wherein, each baffling protrusion 23 may be provided with a dust guiding surface 231.

In some embodiments, considering that the second protrusion 23b is disposed at the outer wall surface of the dust-air separating member 20, referring to fig. 7 and 8, the first protrusion 23a has a dust guide surface 231 so that the foreign matters deposited on the first protrusion 23a can be deposited in the dust collecting chamber 12. And the foreign matters deposited at the second protrusion 23b can be removed when the user cleans the dust cup assembly, reducing the processing cost of the dust-air separating member 20.

In some alternative embodiments, referring to fig. 2-4, the dirt cup assembly 1 further includes a filter element 30, the filter element 30 is disposed on a side of the dirt-gas separating member 20 that is outside of the dirt-collection chamber 12, and the filter aperture of the filter element 30 is smaller than the aperture of the outlet end of the separating passage 22.

The filtering member 30 may be a filter cloth, such as a woven filter cloth, such as a cotton cloth, a wool fabric, or a non-woven filter cloth, and the filtering member 30 may also be a metal filter screen made of a metal material, for example, please refer to fig. 2 to 4, the filtering member 30 is a metal sheet structure, the thickness of the metal sheet structure is 1mm to 4mm, and the filtering pores are through-hole structures formed on the filtering member 30.

The filtering member 30 is disposed at the downstream side of the dust-gas separating member 20, and the filtering pores of the filtering member 30 are smaller than the pore diameter of the outlet end of the separating passage 22, so as to filter the gas separated by the dust-gas separating member 20, so that a part of the fine particles carried in the gas can be retained on the filtering member 30, thereby optimizing the dust-gas separating effect of the dust cup assembly 1.

The filter member 30 may be attached to a side wall surface of the dust-air separating member 20.

To avoid the dust and gas separating member 20 from blocking the filter pores of a portion of the filter member 30, in some alternative embodiments, the filter member 30 and the dust and gas separating member 20 are spaced apart. That is, the filter member 30 and the dust-air separating member 20 have the air mixing gaps H therebetween, and the air discharged through the respective separating passages 22 can be uniformly mixed in the air mixing gaps H and then flow toward the filter member 30. Therefore, the whole filtering piece 30 can filter the gas discharged from the dust-gas separating piece 20, and the filtering effect of the filtering piece 30 is better.

The gap between the filter member 30 and the dust-gas separating member 20 may be 1mm to 4mm, and the embodiment is not limited thereto.

In some alternative embodiments, the number of the filter members 30 may be plural, and the kinds of the filter members 30 may be the same or different, as long as the filter pores of each filter member 30 become gradually smaller in the flow direction of the air flow.

Wherein, the filter element 30 can be fixedly connected with the inner wall surface of the dust cup 10. Alternatively, a second fixing step may be provided on the inner wall surface of the fixing member 60, and the filter 30 may overlap the second fixing step. In this case, to fix the filter member 30, the dirt cup assembly 1 may further include an upper cover 70, and the filter member 30 is interposed between the upper cover 70 and the second fixing step. The upper cover 70 is provided with air outlet holes 71 so that the air flow passing through the filter member 30 can be discharged through the air outlet holes 71.

In some alternative embodiments, the dirt cup assembly 1 further includes a dust shield 40, the dust shield 40 being disposed within the dirt cup 10 and corresponding to the air inlet 11.

The dust blocking member 40 may also be disposed on an inner wall surface of the dust cup 10 (not shown), or the dust blocking member 40 may be disposed on the dust-air separating member 20 (as shown in fig. 3 and 5), and at this time, after the dust-air separating member 20 is fixed in the dust cup 10, an edge of the dust blocking member 40 is tightly attached to the inner wall surface of the dust cup 10, so as to prevent the air with dust from being discharged through a gap between the dust blocking member 40 and the inner wall surface of the dust cup 10.

Thus, the dust blocking member 40 covers the inner side of the air inlet 11, so that even if the dust cup assembly 1 is inclined, for example, the dust collector falls down under external impact, foreign matters in the dust cup assembly 1 cannot be discharged out of the dust cup 10 through the air inlet 11, and dust leakage of the dust cup 10 is avoided.

The dust blocking member 40 can extend in different directions according to the air inlet direction requirement of the dust cup 10 and the arrangement position of the air inlet 11.

Illustratively, the air inlet 11 extends in a radial direction of the dirt cup 10 when the dirt cup 10 is radially ventilated. When the air inlet 11 is disposed at a side of the dust cup 10 close to the dust-air separating member 20, the dust blocking member 40 may extend toward a side of the dust cup 10 far from the dust-air separating member 20 to prevent foreign substances introduced from the air inlet 11 from blocking the separation passage 22.

In some alternative embodiments, the dirt cup 10 may also provide tangential air intake. After entering the dust collection chamber 12, the dust-laden air will wind around along the circumferential direction of the dust collection chamber 12, and the foreign matters in the dust-laden air can be thrown to the inner wall surface of the dust cup 10 under the action of centrifugal force and fall down to the bottom of the dust collection chamber 12 along the inner wall surface of the dust cup 10. The gas in the dust-laden air flows toward the dust-gas separating member 20 side to perform the primary dust-gas separation.

Wherein the air inlet 11 may be oriented tangentially to the dirt cup 10. Or, referring to fig. 3 and 5, the air inlet 11 faces the radial direction of the dust cup 10, at this time, one end of the dust blocking member 40 along the circumferential direction of the dust cup 10 is connected to the inner wall surface of the dust cup 10, and an air outlet gap is formed between the other end of the dust blocking member 40 along the circumferential direction of the dust cup 10 and the inner wall surface of the dust cup 10, so as to guide the dust-laden air to revolve along the circumferential direction of the dust cup 10.

On the one hand, the gap between the dust blocking member 40 and the inner wall surface of the dust cup 10 can guide the dust-laden air entering the dust cup 10 along the radial direction to wind along the circumferential direction of the dust cup 10. On the other hand, when the dust-laden air flows to the position of the air inlet 11, the dust-laden air can flow along the wall surface of the dust blocking member 40, and the dust blocking member 40 can play a role in blocking, so that the dust-laden air is prevented from being discharged out of the dust cup 10 through the air inlet 11. For example, when the vacuum cleaner is stopped, the negative pressure in the connecting rod disappears, and the dust in the dust cup 10 may still be in a flowing state, and at this time, the dust blocking sheet can block the foreign matters from being discharged out of the dust cup 10.

The present embodiment provides a vacuum cleaner, which includes a main body (not shown) of the vacuum cleaner and the above-mentioned dust cup assembly 1. The structure, function, and working principle of the dirt cup assembly 1 have been described in detail in the foregoing embodiments, and thus are not described herein again.

The main machine of the dust collector comprises a floor brush, a connecting rod and a fan, wherein the connecting rod is hollow so as to be communicated with an inlet of the floor brush and an inner cavity of the dust cup 10. The fan starts, and the gas pressure in the connecting rod is less than air pressure, just also makes the dust-laden air can flow in to the connecting rod. The present embodiment does not limit the structures of the main body of the cleaner and the blower.

By adopting the dust cup assembly 1, the dust collector can prevent foreign matters such as hair from being wound and fixed in the dust cup 10, and is easy for a user to clean the dust cup 10.

The embodiments or implementation modes in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (13)

1. A dirt cup assembly comprising a dirt cup (10) and a dirt-gas separator (20), said dirt cup (10) and said dirt-gas separator (20) enclosing a dirt collection chamber (12);

an air inlet surface (21) is arranged on one side of the dust-air separating piece (20) facing the dust collecting cavity (12), a plurality of separating channels (22) are further arranged on the dust-air separating piece (20), the separating channels (22) are arranged at intervals, one end of each separating channel (22) penetrates through the air inlet surface (21), and the other end of each separating channel penetrates through the outer wall surface of the dust-air separating piece (20) so as to communicate the inner side and the outer side of the dust collecting cavity (12);

each separation channel (22) is bent, so that the dust-laden air can be deflected after impacting the inner wall surface of the separation channel (22) and separated from foreign matters in the dust-laden air.

2. The dirt cup assembly of claim 1 wherein said separation channel (22) has a plurality of baffle projections (23) on an inner wall surface thereof;

the multiple baffling bulges (23) are arranged at intervals along the flowing direction of the dust-laden air, and the multiple baffling bulges (23) are arranged on two opposite sides of the separation channel (22) in a staggered mode.

3. The dirt cup assembly of claim 2, wherein the plurality of baffle projections (23) includes a first projection (23a) and a second projection (23b), the first projection (23a) and the second projection (23b) being disposed at both ends of the separation channel (22), respectively.

4. A dirt cup assembly according to claim 3, wherein the separation channel (22) extends in a first direction, the first projection (23a) having a first projection in the first direction on the air intake surface (21), the second projection (23b) having a second projection in the first direction on the air intake surface (21);

the edge of the first projection and the edge of the second projection are coincident with each other, or the first projection and the second projection are arranged at intervals.

5. A dirt cup assembly according to claim 3, wherein the first projection (23a) has a dust guide surface (231), the dust guide surface (231) being disposed on a downstream side of the first projection (23a) in a flow direction of the dust laden air, the dust guide surface (231) being disposed obliquely toward a side of the dust collection chamber (12).

6. The dirt cup assembly of any of claims 1-5, further comprising a filter member (30), the filter member (30) being disposed on a side of the dirt-gas separator member (20) that is outside of the dirt collection chamber (12), the filter member (30) having a filter aperture that is smaller than the aperture of the outlet end of the separation channel (22).

7. The dirt cup assembly of claim 6 wherein said filter element (30) and said dirt-gas separator element (20) are spaced apart.

8. The dirt cup assembly of any of claims 1-5, further comprising a sealing ring (50) and a retaining member (60);

a first fixed step is arranged on the inner wall surface of the dust cup (10), and the fixing piece (60) is used for pressing and fixing the dust-air separating piece (20) on the first fixed step; the sealing ring (50) is arranged between the fixing piece (60) and the dust cup (10) or between the dust-air separating piece (20) and the dust cup (10).

9. The dirt cup assembly of claim 8 wherein said fixture (60) has a flow aperture therethrough, a plurality of said separation channels (22) being exposed at said flow aperture;

an accommodating groove is formed in the outer wall surface of the fixing piece (60), and the sealing ring (50) is arranged in the accommodating groove and is abutted against the inner wall surface of the dust cup (10).

10. The dirt cup assembly of claim 9, wherein said retainer (60) has an interference fit with said dirt cup (10).

11. The dirt cup assembly of any of claims 1-5, wherein said dirt cup (10) is provided with an air inlet (11), said air inlet (11) communicating between the interior and exterior sides of said dirt cup (10) for introducing said dirt-laden air, said dirt-air separator (20) being located above said air inlet (11).

12. The dirt cup assembly of claim 11,

the dust cup assembly further comprises a dust blocking piece (40), the dust blocking piece (40) is arranged in the dust cup (10) and correspondingly arranged with the air inlet (11), one end of the dust cup (10) in the circumferential direction is connected with the inner wall surface of the dust cup (10), an air outlet gap is formed between the other end of the dust cup (10) in the circumferential direction and the inner wall surface of the dust cup (10) along the dust blocking piece (40), and the dust cup assembly is guided to take dust air to take along the circumferential direction of the dust cup (10) to wind.

13. A vacuum cleaner comprising a cleaner body and the dirt cup assembly of any one of claims 1-12.

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