CN211355190U - Dust collector and separation dust collection assembly thereof - Google Patents

Abstract

The utility model provides a dust catcher and separation dust collection assembly thereof. The separation dust collection assembly comprises a dust cup and a dust-gas separator positioned in the dust cup, wherein the dust cup comprises a cylindrical side wall, a closed cover plate arranged at one axial end of the side wall, a base plate arranged at the other axial end of the side wall and an air outlet formed in the base plate; the dust-gas separator comprises a main body mechanism and an air guide cover, the main body mechanism comprises a separating cylinder with a plurality of separating ports, an assembling portion connected with an axial first end of the separating cylinder and an air outlet cylinder connected with an axial second end of the separating cylinder, the air guide cover is connected with the assembling portion in a sealing mode and extends into the separating cylinder, an air guide cavity is formed between the air guide cover and the separating cylinder and communicated to the air outlet through the air outlet cylinder, a closed cavity is formed between the air guide cover and the cover plate, the closed cavity and the air guide cavity are sealed and isolated by the air guide cover, and air kinetic energy loss caused by vortex is reduced.

Description

Dust collector and separation dust collection assembly thereof

Technical Field

The utility model belongs to the technical field of clean electrical apparatus, especially, relate to a separation dust collecting component and have dust catcher of this separation dust collecting component.

Background

A vacuum cleaner is an electric cleaning appliance for removing dust from floors, carpets, walls, furniture, clothing and various crevices, and generally comprises a work head assembly, a pipe assembly, a dust separating and collecting assembly and a suction assembly. When the dust collector executes cleaning operation, under the driving of the suction assembly, dust-containing airflow enters the dust collector from the working head assembly from the outside, enters the separation dust collection assembly along the pipe assembly, is processed by the dust separator of the separation dust collection assembly to form clean airflow, separated dust and impurities are collected in the dust cup of the separation dust collection assembly, and the clean airflow is discharged after flowing through the suction assembly.

Sufficient aerodynamic energy is one of the key factors for ensuring the cleaning effect of the vacuum cleaner, and how to avoid the loss of the aerodynamic energy without increasing the power of the suction assembly is one of the core technical subjects in the field.

However, the separation dust collecting assembly on the market at present has the following problems: firstly, the problems that the idle space in the dust-gas separator is too much and the idle space forms negative pressure to cause vortex exist; secondly, the problem of airflow turbulence at the dust separator exists; thirdly, dust impurities (especially hair, cotton wool and the like) are easy to be accumulated at the separation opening of the dust-gas separator. These problems all cause air kinetic energy loss and affect the quality grade of the dust collector.

SUMMERY OF THE UTILITY MODEL

In order to solve the at least one of the problems of vortex generation, airflow turbulence at the dust-gas separator, easy accumulation and blockage of the separation port and the like at the idle space in the dust-gas separator in the prior art, the utility model aims to provide a separation dust collecting component and a dust collector with the separation dust collecting component can effectively reduce the loss of air kinetic energy.

In order to achieve one of the above objectives of the present invention, an embodiment of the present invention provides a separation dust collecting assembly, including a dust cup and a dust-gas separator located in the dust cup, wherein the dust cup includes a cylindrical sidewall, a closed cover plate disposed at one axial end of the sidewall, a base plate disposed at the other axial end of the sidewall, and an air outlet disposed on the base plate; the dust-gas separator comprises a main body mechanism and an air guide cover, the main body mechanism comprises a separating cylinder with a plurality of separating ports, an assembling portion connected with an axial first end of the separating cylinder and an air outlet cylinder connected with an axial second end of the separating cylinder, the air guide cover is connected with the assembling portion in a sealing mode and extends into the separating cylinder, an air guide cavity is formed between the air guide cover and the separating cylinder and communicated to the air outlet through the air outlet cylinder, a closed cavity is formed between the air guide cover and the cover plate, and the closed cavity and the air guide cavity are sealed and isolated by the air guide cover.

Compared with the prior art, the wind scooper is arranged, so that the wind scooper extends into the separating cylinder to guide the flow direction of the airflow, and the wind scooper is used for separating the wind guide cavity from the closed cavity.

As a further improvement of an embodiment of the present invention, the dust cup further includes an air inlet disposed on the side wall, the separation cylinder includes a wind shielding portion located between a portion of the separation opening and the assembling portion, and the wind shielding portion corresponds to the air inlet;

the wind scooper includes a sealing convex portion located at an inner wall surface of the wind blocking portion, wherein:

the sealing convex part is filled in the inner space of the wind shielding part, or the sealing convex part is positioned between the wind shielding part and the separation port so as to seal and isolate the inner space of the wind shielding part from the wind guide cavity.

As a further improvement of an embodiment of the present invention, the air guiding cover has a guiding wall surface located inside the separation opening, the axial first end of the separation cylinder reaches in the direction of the axial second end of the separation cylinder, and the guiding wall surface is in a concave arc shape and gradually approaches to the central axis of the separation cylinder.

As a further improvement of an embodiment of the present invention, the assembling portion is provided in a ring shape extending outward from the separation cylinder, and hermetically connects the dust cup, and the assembling portion includes a flange and a groove located at an outer periphery of the flange;

the wind scooper comprises a flanging which extends into the groove and is tightly attached to the flange.

As a further improvement of an embodiment of the present invention, the dust collecting and separating assembly further includes at least two flow dividing plates, the at least two flow dividing plates are disposed in the air guiding cavity and divide the air guiding cavity into at least two sub-air cavities.

As a further improvement of an embodiment of the present invention, the at least two flow distribution plates are arranged in a circumferential direction around a central axis of the separation cylinder.

As a further improvement of an embodiment of the present invention, the flow distribution plate extends in a radial direction of the separation cylinder and is parallel to a central axis of the separation cylinder.

As a further improvement of an embodiment of the present invention, the flow distribution plate is located between two adjacent separation openings and separates two separation openings located on both sides thereof.

As a further improvement of an embodiment of the present invention, the separation cylinder extends from an axial first end thereof to an axial second end thereof downward along a central axis thereof;

the main body mechanism is provided with two assembling parts which are sequentially arranged from top to bottom below the separation port;

the dust separator further comprises a skirt portion which can be selectively assembled and fixed on one of the two assembling portions and can be disassembled in a nondestructive mode.

As a further improvement of an embodiment of the present invention, the separation cylinder extends from an axial first end thereof to an axial second end thereof downward along a central axis thereof;

the dust separator further comprises a skirt portion located below the separation port, the skirt portion extending outwardly and downwardly from the body mechanism;

the dust cup further comprises an air inlet arranged on the side wall, and the air inlet is located above the skirt portion and extends downwards from outside to inside in an inclined mode.

In order to realize one of the above objects of the present invention, an embodiment of the present invention further provides a separation dust collecting assembly, including the dust cup with the air outlet and being located dust separator in the dust cup, dust separator includes:

the main body mechanism comprises an air outlet cylinder and a separating cylinder with a plurality of separating ports;

the air guide cover is arranged in the separating cylinder, and an air guide cavity is formed between the air guide cover and the separating cylinder;

the air guide cavity is divided into at least two sub-air cavities by the at least two flow distribution plates, and each sub-air cavity is communicated to the air outlet through the air outlet cylinder.

Compared with the prior art, the air guide cover is arranged in the separating cylinder, so that the flow direction of the air flow can be guided, and the air flow disorder in the dust-gas separator is reduced; on the other hand, the flow distribution plate is arranged in the air guide cavity between the air guide cover and the separating cylinder, and the air guide cavity is divided by the flow distribution plate, so that airflow can flow along different sub-air cavities, turbulence of the airflow in the air guide cavity is reduced, air kinetic energy loss is reduced, airflow outside the separating cylinder can be stirred, tangential airflow speed is reduced, and ash raising is prevented.

In order to realize one of the above objects of the present invention, an embodiment of the present invention further provides a separation dust collecting assembly, including:

the dust cup comprises a cylindrical side wall and a substrate arranged at the lower end of the side wall;

a dirt-gas separator located within the dirt cup, comprising:

the main body mechanism comprises a separating cylinder with a plurality of separating ports, an air outlet cylinder positioned between the separating cylinder and the substrate, and two assembling parts which are sequentially arranged below the separating ports from top to bottom;

and the skirt part can be selectively assembled and fixed on one of the two assembling parts and can be nondestructively disassembled.

Compared with the prior art, on one hand, the embodiment can adjust the distance between the skirt and the separation opening as required by an operator by arranging the two assembling parts capable of fixing and assembling the skirt, is suitable for dust impurities with relatively large weight and small volume and enables the skirt to be arranged close to the separation opening so as to increase the volume below the skirt and increase the ash storage amount; the skirt part can be further suitable for the dust impurities with relatively small weight and large volume, such as hair, paper scraps, cotton wool and the like, and the skirt part is arranged far away from the separation opening to prevent the dust impurities from being blocked at the separation opening, so that the air kinetic energy loss is reduced.

In order to realize one of the above objects of the present invention, an embodiment of the present invention further provides a separation dust collecting assembly, including:

the dust cup comprises a cylindrical side wall, a cover plate arranged at the upper end of the side wall, a base plate arranged at the lower end of the side wall and an air inlet arranged on the side wall;

a dirt-gas separator located within the dirt cup, comprising:

the main body mechanism comprises a separating cylinder with a plurality of separating ports and an air outlet cylinder positioned between the separating cylinder and the substrate;

a skirt located below the separation opening;

wherein, the air inlet is positioned above the skirt part and extends downwards from outside to inside in an inclined way.

Compared with the prior art, this embodiment is through extending air intake outside-in slant downwards, and the downward sloping flows when can making the air current pass through the air intake, increases the inside air current axial decurrent speed of dirt cup, compresses the space volume of light dirt miscellaneous such as hair, cotton fibre to press dirt miscellaneous to the skirt portion, reduce the dirt miscellaneous probability of attaching to the deposit and blocking up in separation mouth department, and then reduce the air kinetic energy loss.

In order to achieve the above objects, an embodiment of the present invention further provides a vacuum cleaner, which includes the dust collecting assembly as described above, and is corresponding to the vacuum cleaner.

Drawings

Fig. 1 is a perspective view of a vacuum cleaner according to a first embodiment of the present invention;

fig. 2 is a longitudinal sectional view of the dust collecting assembly and the suction assembly according to the first embodiment of the present invention;

FIG. 3 is a schematic view of a first embodiment of the dust separator of the present invention without the first filter element;

fig. 4 is a schematic perspective view of a dust separator according to a first embodiment of the present invention;

FIG. 5 is a perspective view of a portion of the components in a dust separator of a first embodiment of the present invention;

FIG. 6 is a schematic view of a dust separator according to a second embodiment of the present invention without the first filter member, showing a state in which a skirt portion is fitted to a first assembling portion;

FIG. 7 is a schematic view of a dust separator according to a second embodiment of the present invention without the first filter member, showing the skirt portion fitted to the second assembly portion;

fig. 8 is a schematic perspective view of a dust separator according to a second embodiment of the present invention;

fig. 9 is a schematic sectional view showing a part of the structure of a dust cup according to a third embodiment of the present invention.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art based on these embodiments are all included in the scope of the present invention.

Example 1

As shown in fig. 1 to 5, in the preferred embodiment of the vacuum cleaner of the present invention, the vacuum cleaner 100 is illustrated as an upright type vacuum cleaner, but is not limited thereto, and the vacuum cleaner of the present invention may also be implemented as a horizontal type vacuum cleaner, a portable type vacuum cleaner, a robot vacuum cleaner/sweeper, and so on.

In this embodiment, referring to fig. 1, the vacuum cleaner 100 includes a working head assembly 10, a tube assembly 20, a dust separating assembly 30, a suction assembly 40, and a handle assembly 60.

The working head assembly 10 comprises any one of a floor brush, a round brush, a dust brush and a flat suction brush or other types of brushes or suction heads, and a dust suction port of the dust collector 100 is formed at the working head assembly 10.

The pipe assembly 20 comprises a longitudinally extending rigid straight pipe 21 and a curvedly extending flexible pipe 22. Wherein, the lower part of the hard straight pipe 21 is assembled and connected with the working head assembly 10, the upper part of the hard straight pipe 21 is assembled and connected with the handle assembly 60, the separation dust collecting assembly 30 and the suction assembly 40 are assembled and fixed at the middle part of the hard straight pipe 21, and an operator can move the whole dust collector 100 through the handle assembly 60; the lower opening of the hard straight pipe 21 is communicated with the dust suction opening of the working head assembly 10, the upper opening of the hard straight pipe 21 is communicated with the hose 22, and the hose 22 is communicated with the separation dust collection assembly 30, so that when the dust collector 100 performs cleaning operation, dust-containing airflow can enter the interior of the dust collector 100 from the dust suction opening and sequentially flows into the separation dust collection assembly 30 along the hard straight pipe 21 and the hose 22.

Referring to fig. 1 and 2, the separate dust collection assembly 30 includes a dirt cup 31 and a dirt separator 32 (numbered see fig. 5) located within the dirt cup 31. The dust cup 31 has an air inlet 3120 and an air outlet 3130, the hose 22 is connected to the air inlet 3120, and the air outlet 3130 is connected to the suction port 401 of the suction assembly 40; the dust separator 32 is capable of separating dust from a dusty gas stream flowing into the separating and collecting assembly 30 (i.e., into the dirt cup 31). When the vacuum cleaner 100 performs a cleaning operation, the dust-containing airflow in the hose 22 flows into the cavity of the dust cup 31 through the air inlet 3120, and is separated by the dust separator 32 to form a clean airflow, the separated dust and impurities are collected in the dust cup 31, and the clean airflow exits the dust separating and collecting assembly 30 through the air outlet 3130.

The suction assembly 40 comprises a housing and a suction device 41. The housing has an exhaust outlet 402; a suction device 41 is accommodated in the housing for providing a driving force required for generating an air flow and causing the air flow to flow from the suction port to the exhaust port 402 along an air path passage in the vacuum cleaner 100; the suction device 41 may be embodied as a fan, the suction opening 401 being the suction opening of said fan. When the vacuum cleaner 100 performs a cleaning operation, a cleaning air flow enters the suction assembly 40 through the suction port 401, passes through the suction device 41, exits the vacuum cleaner 100 through the exhaust port 402, and is exhausted to the outside.

In summary, when the vacuum cleaner 100 performs a cleaning operation, under the driving of the suction device 41, the airflow containing dust sequentially passes through the dust suction port, the rigid pipe 21, the hose 22 and the air inlet 3120, enters the cavity of the dust cup 31, is separated by the dust-gas separator 32 to form a clean airflow, the separated dust and impurities are collected in the dust cup 31, and the clean airflow sequentially passes through the air outlet 3130, the suction port 401, the suction device 41 and the air outlet 402 and is discharged to the outside.

Preferably, in this embodiment, the vacuum cleaner 100 further includes a filter assembly 50 interposed between the dust separation assembly 30 and the suction assembly 40, the filter assembly 50 is located on an air path from the air outlet 3130 to the suction port 401, and the filter assembly 50 includes at least one of sponge, electrostatic cotton, and the like. The airflow leaving the dust separating and collecting assembly 30 through the air outlet 3130 is filtered again by the filter assembly 50 to form a cleaner airflow, which flows to the suction opening 401.

The utility model discloses in the separation collection dirt subassembly 30 that provides, can compare in prior art and reduce the loss of air kinetic energy at least. The specific structure of the separate dust collecting assembly 30 of this embodiment will be described with reference to fig. 1 to 5.

Referring first to fig. 1 and 2, the dirt cup 31 and the dirt separator 32 of the dust separating assembly 30 in the present embodiment are coaxially disposed, and both have a central axis V, and the concepts of "axial direction", "radial direction", "circumferential direction", etc. are defined hereinafter with reference to the central axis V. Of course, in alternative embodiments the dirt cup 31 and the dirt separator 32 may be non-coaxially arranged, and the respective concepts "axial", "radial", "circumferential" etc. should be understood with reference to the respective central axes. In addition, in the present embodiment, the central axis V extends vertically, i.e., the separate dust collecting assembly 30 is disposed vertically, but it is not limited thereto, and the central axis V may also extend obliquely.

Turning now to the specific structure of dirt cup 31, dirt cup 31 includes a cover plate 311, a sidewall 312, and a base plate 313.

The side wall 312 has a cylindrical shape disposed around the central axis V (i.e., the central axis V is also the central axis of the side wall 312), and may be specifically configured as an equal-diameter cylinder (i.e., a cylindrical cylinder), a non-equal-diameter cylinder (e.g., a truncated cone, a stepped cylindrical cylinder with an abrupt diameter), a rectangular cylinder, or the like, as in the present embodiment.

The cover plate 311 is disposed at one axial end of the sidewall 312, specifically, at the upper end of the sidewall 312, and when the vacuum cleaner 100 performs a cleaning operation, the cover plate 311 can be fastened to the sidewall 312 in a sealing manner by any one or any combination of a buckle, a thread, a hinge, and the like; when the vacuum cleaner 100 finishes the cleaning operation, the cover plate 311 can be at least partially detached from the side wall 312, so that the inner cavity of the dust cup 31 is exposed, thereby facilitating an operator to clean the dust in the inner cavity of the dust cup 31 or to repair and replace the dust separator 3.

The base 313 and the cover 311 are disposed opposite to each other in the axial direction, and are disposed at the other end of the sidewall 312 in the axial direction, specifically, at the lower end of the sidewall 312. In the present embodiment, the substrate 313 is detachably and hermetically fastened to the lower end of the sidewall 312.

As mentioned above, the dirt cup 31 has the inlet 3120 and the outlet 3130, in this embodiment, the inlet 3120 is disposed at the upper portion of the sidewall 312, the outlet 3130 is disposed at the center of the base 313, and the cover 311 is closed. When the cover 311 and the base 313 are both sealed and fastened to the sidewall 312, the cover 311 closes the upper end of the sidewall 312, and the inner cavity of the dirt cup 31 can communicate with the outside of the dirt cup 31 only through the air inlet 3120 and the air outlet 3130. In a modified embodiment, the positions of the inlet 3120 and the outlet 3130 are not limited thereto, and for example, the outlet 3130 may be further provided on the cover 311.

Preferably, the air inlet 3120 extends from the outside to the inside (i.e., along the flowing direction of the airflow) along a tangent line of the sidewall 312 of the dirt cup 31. in other words, the extending direction T of the air inlet 3120 is a tangent line of the sidewall 312 of the dirt cup 31. In this way, the extending direction T is perpendicular to the central axis V and is a tangent of the cylindrical side wall 312, so that the airflow can enter the inner cavity of the dust cup 31 from the outside to the inside in a tangential manner and flow along the inner wall surface of the side wall 312, the airflow can flow regularly, and the airflow turbulence phenomenon is reduced.

Next, referring to fig. 2 to 5, a specific structure of the dust separator 32 will be described, and the dust separator 32 is disposed at a central position of an inner cavity of the dust cup 31 as a whole, and is disposed coaxially with the dust cup 31. Dust separator 32 specifically includes a main body mechanism 321, an air guide cover 322, a flow diverter plate 323, a skirt portion 324, and a filter 325.

The main body mechanism 321 includes an assembling portion 3213, a separation cylinder 3211, and an air outlet cylinder 3212. In terms of position layout, the assembling portion 3212 is connected to a first axial end of the separating cylinder 3211, the wind outlet cylinder 3212 is connected to a second axial end of the separating cylinder 3211, and the separating cylinder 3211 is located between the assembling portion 3212 and the wind outlet cylinder 3212, in this embodiment, the assembling portion 3212 is connected to an upper end of the separating cylinder 3211, and the wind outlet cylinder 3212 is connected to a lower end of the separating cylinder 3211.

Further, the fitting portion 3212 and the separating cylinder 3211 are integrally provided, and both are fixedly fitted to the dirt cup 31 through the fitting portion 3212, specifically, the fitting portion 3212 is substantially in the shape of a ring extending outward from the upper end of the separating cylinder 3211 away from the central axis V, and the peripheral outer edge 32132 of the fitting portion 3212 is tightly held between the side wall 312 and the cover plate 311.

The air outlet cylinder 3212 is located between the separating cylinder 3211 and the base plate 313, the upper end of the air outlet cylinder is sleeved outside the lower end of the separating cylinder 3211, and the lower end of the air outlet cylinder is connected to the periphery of the air outlet 3130 on the base plate 313.

The main body mechanism 321 divides the interior of the dirt cup 31 into a first chamber and a second chamber. The first chamber is a dust collecting cavity 301 formed between the main body 321 and the sidewall 312, that is, formed outside the main body 321, and the air inlets 3120 of the dust cups 31 are communicated with the dust collecting cavity 301. The second chamber is formed inside the main body 321, the lower portion of the second chamber is an air outlet cavity 3022 enclosed by the inner wall surface of the air outlet cylinder 3212, the air outlet 3130 of the dust cup 31 is communicated with the air outlet cavity 3022 in an intersecting manner, and the upper portion of the second chamber is approximately enclosed by the separating cylinder 3211 and the cover plate 311.

The separating cylinder 3211 is provided with a plurality of separating openings 3210, the number of the separating openings 3210 can be set to be one, two or more, the separating openings 3210 can be set to be any shape, and the specific shapes of all the separating openings 3210 are set to be the same, different or partially the same. Each separating opening 3210 penetrates through the inner wall surface and the outer wall surface of the separating cylinder 3211, and the upper portion of the second chamber (inside the separating cylinder 3211) is communicated with the dust collecting chamber 301 (outside the separating cylinder 3211) through the separating opening 3210, so that the airflow entering the inner chamber of the dust cup 31 through the air inlet 3120 enters the upper portion of the second chamber through the separating opening 3210 from the dust collecting chamber 301, and then flows into the air outlet 3130 through the air outlet chamber 3022 from top to bottom in the second chamber.

Preferably, the outer circumference of the separating cylinder 3211 is wrapped with a filtering element 325, and the filtering element 325 can be specifically configured as a filter net, and the material, mesh size, mesh density and other parameters of the filter net depend on the specific requirements of the vacuum cleaner 100. Thus, when the dusty airflow enters the upper portion of the second chamber from the dust collecting chamber 301 through the separating opening 3210, the filter 325 blocks dust in the dusty airflow so that the dust is retained in the dust collecting chamber 301, and the filtered airflow passes through the filter 325 to enter the upper portion of the second chamber. The position, manner, specific structure, and the like of the filter 325 are not limited to these.

Further, the wind scooper 322 divides the upper portion of the second chamber into two portions hermetically isolated from each other. The upper end of the wind scooper 322 is connected to the assembling portion 3213 in a sealing manner and extends into the separating cylinder 321 from top to bottom, specifically, a downward extending flange 3221 is disposed at an outer edge of the upper end of the wind scooper 322, the assembling portion 3213 of the main body mechanism 321 includes a flange 32131 and a groove 32130 located at an outer periphery of the flange 32131, the flange 3221 of the wind scooper 322 passes over the flange 32131 and is hooked in the groove 32130, and the flange 3221 is tightly attached to the flange 32131, so that the wind scooper 322 is connected to the main body mechanism 321 in a sealing manner in a hanging manner.

The upper part of the second cavity is divided into a closed cavity 3021 and an air guiding cavity by taking the air guiding cover 322 as a boundary, wherein the air guiding cavity is formed between the air guiding cover 322 and the separating cylinder 3211, the lower end of the air guiding cavity is communicated with the air outlet cavity 3022, and air flow enters the air guiding cavity through the separating port 3210 and then flows to the air outlet cavity 3022 through the air guiding cavity; the closed cavity 3021 is formed between the wind scooper 322 and the cover plate 311, and the closed cavity 3021 and the wind scooper 322 are sealed and isolated, and are completely separated and not communicated with each other. In this way, by disposing the wind scooper 322 in the separation cylinder 3211, on one hand, the flow direction of the airflow can be guided by the wind scooper 322, and on the other hand, the wind scooper 322 isolates the wind guiding cavity from the closed cavity 3021, so that compared with the through-type arrangement in the prior art (equivalent to the communication between the closed cavity 3021 and the wind guiding cavity), the vortex generated by the negative pressure formed at the closed cavity 3021 can be avoided, and the aerodynamic energy loss can be reduced. Of course, in an alternative embodiment, the wind scooper 322 may be integrally provided with the separation cylinder 3211 and/or the fitting portion 3213.

Further, the separating cylinder 3211 includes a wind blocking portion 32111 formed between the partial separating opening 3210 and the fitting portion 3213, the wind blocking portion 32111 corresponds to the wind inlet 3120, so that the dust-containing airflow entering the dust collecting chamber 301 from the wind inlet 3120 contacts the wind blocking portion 32111 with the separating cylinder 3211 first, and forms an airflow (indicated by a thick arrow in fig. 2) spiraling downward around the separating cylinder 3211 under the blocking of the wind blocking portion 32111 to form a cyclonic separating mechanism; correspondingly, the air guiding cover 332 includes a sealing protrusion 3222 provided on an outer wall surface thereof, and the sealing protrusion 3222 fills an inner space of the windshield portion 32111 to closely contact an inner wall surface of the windshield portion 32111. Thus, the sealing protrusion 3222 fills the inner space of the windshield portion 32111, so as to further reduce the idle space inside the main body 321, avoid the formation of negative pressure in the inner space of the windshield portion 32111 to cause eddy current, and further improve the effect of reducing the kinetic energy loss of air. Of course, without being limited thereto, in a modified embodiment, the sealing convex portion 3222 may also be configured to be a plate-shaped structure disposed around the windshield portion 32111, and specifically, it is located between the windshield portion 32111 and the separation opening 3210 to seal and isolate the inner space of the windshield portion 32111 from the air guiding cavity, so as to achieve the effect of preventing the formation of negative pressure at the inner space of the windshield portion 32111 to cause eddy current.

Further, the wind scooper 322 is substantially shaped like an inverted cone, and has an upper end connected to the main body 321 and a lower end gradually approaching the central axis V of the main body 321. The wind scooper 322 has a guiding wall 3220 located inside the separation opening 3210, the guiding wall 3220 forms a part of an outer wall of the wind scooper 322, and the guiding wall 3220 is concave-curved in an axial direction from top to bottom and gradually approaches the central axis V. On one hand, the airflow can smoothly enter the air guide cavity through the separation opening 3210, and on the other hand, the airflow flows to the air outlet cavity 3022 along the guide wall 3220, so that the air guide effect is improved, the turbulence of the airflow at the guide wall 3220 is reduced, and the kinetic energy loss of the air is reduced. Of course, the guide wall 3220 may be provided as a continuous surface or an abrupt discontinuous surface.

The number of the dividing plates 323 is set to at least two, and in the example of the drawing, the dividing plates 323 are set to six. The splitter plate 323 is disposed in the air guide cavity, and six splitter plates 323 are sequentially arranged around the central axis V along the circumferential direction, and the six splitter plates 323 divide the air guide cavity into six sub-air cavities distributed along the circumferential direction, and of course, the number of the splitter plates 323 corresponds to the number of the sub-air cavities and is not limited thereto. In this way, at least two flow dividing plates 323 are arranged between the air guide cover 323 and the separating cylinder 3211, so as to divide the air guide cavity between the air guide cover 323 and the separating cylinder 3211 into at least two sub-air cavities, which not only facilitates the air flow to flow along different sub-air cavities, reduces the turbulence of the air flow in the air guide cavity, reduces the kinetic energy loss of air, but also can stir the air flow outside the separating cylinder 3211, reduces the tangential air flow velocity, and thus prevents the dust and impurities which have settled in the dust collecting cavity 301 from being lifted up secondarily.

Further, any two adjacent sub-air cavities are completely isolated by the flow dividing plate 323 between the two sub-air cavities and are not communicated, and the lower end of each sub-air cavity is provided with an opening formed between the two adjacent flow dividing plates 323, so that the different sub-air cavities are independent from each other, and the airflow entering the different sub-air cavities directly flows to the air outlet cavity 3022 through the openings without airflow cross-ventilation, thereby further reducing the turbulence of the airflow in the air guide cavity and reducing the kinetic energy loss of the air.

The flow distribution plate 323 extends in the radial direction, and has an inner end contacting the outer wall surface of the wind scooper 322 and an outer end contacting the inner wall surface of the separation cylinder 3211. In this embodiment, the flow distribution plate 323 is integrally disposed on the separating cylinder 3211, and the flow distribution plate 323 radially extends inward from the inner wall surface of the separating cylinder 3211 until the flow distribution plate is closely attached to the outer wall surface of the wind scooper 322, so that, on one hand, the two sub-wind cavities at two sides of the flow distribution plate 323 are separated to prevent the airflow from streaming in the two adjacent sub-wind cavities, and on the other hand, the flow distribution plate 322 radially extends to reduce the tangential flow of the airflow in the sub-wind cavities, thereby reducing the kinetic energy loss of the air. Of course, in a modified embodiment, the flow dividing plate 323 may be integrally disposed on the air guiding cover 322, and radially and outwardly extends from the outer wall surface of the air guiding cover 322 until closely contacting with the inner wall surface of the separating cylinder 3211; alternatively, the flow dividing plate 323 may be integrally provided to the air guide cover 322 and the separation cylinder 3211; further alternatively, the flow dividing plate 323 may be provided separately from the air guide cover 322 and the separation cylinder 3211.

Further, the dividing plates 323 are parallel to the central axis V, and in general, each dividing plate 323 is disposed on a radial surface of the dirt cup 31. In this way, the airflow may be further directed to flow down the sub-wind chambers.

In this embodiment, the dividing plate 323 is located between two adjacent separating openings 3210, and separates the two separating openings 3210 located on both sides thereof. Specifically, the upper end of the flow distribution plate 323 is not lower than at least one of the two separation openings 3210 located at both sides thereof, and the lower end of the flow distribution plate 323 is lower than the separation opening 3210 (that is, the lower end of the flow distribution plate 323 is lower than the separation opening 3210), so that the airflow entering the air guide cavity through any height of the separation opening 3210 can timely contact the flow distribution plate 323 to change the airflow direction, and the tangential flow of the airflow in the sub-air cavity is further reduced, thereby reducing the kinetic energy loss of the air.

Further, a skirt 324 is connected to the body 321 and extends from the body 321 outwardly towards the sidewall 312 and downwardly towards the base 313; the skirt 324 is located below the separation opening 3210, and in the present embodiment, the skirt 324 is integrally provided at a lower end portion of the separation cylinder 3211, which is substantially interposed between the separation cylinder 3211 and the outlet cylinder 3212. By arranging the skirt portion 324, on one hand, in the dust collection cavity 301, the dust and impurities blocked and separated from the dust-containing airflow by the filter member 325 are guided by the skirt portion 324 to descend to the bottom of the dust collection cavity 301 (namely, to be accumulated above the base plate 313 of the dust cup 31), and on the other hand, the dust and impurities settled at the bottom of the dust collection cavity 301 are greatly reduced by the blocking effect of the skirt portion 324, the probability that the dust and impurities are secondarily lifted to the separation opening 3210 by the airflow is greatly reduced, the separation opening 3210 is prevented from being blocked by the dust and impurities, the cleaning effect is ensured, and the kinetic energy loss of air is reduced.

The above description has been made on the structure of the dust separating and collecting assembly 30 of the present embodiment, and further, in the present embodiment, the suction assembly 40 is assembled below the dust separating and collecting assembly 30, the suction port 401 of the suction device 41 is coaxially aligned with the air outlet 3130 of the dust separating and collecting assembly 30, and preferably, the suction device 41 is coaxially disposed with the dust cup 31, so that the path of the air path from the air outlet 3130 to the suction port 401 is short, the loss of kinetic energy of air caused by an excessively long air path is reduced, and the overall performance of the vacuum cleaner 100 can be improved.

In summary, compared with the prior art, the vacuum cleaner 100 of the present embodiment has the following beneficial effects:

(1) by arranging the air guide cover 322 in the separation cylinder 3211, on one hand, the flow direction of the air flow can be guided by the air guide cover 322, and on the other hand, the air guide cavity is isolated from the closed cavity 3021 by the air guide cover 322, so that compared with a through arrangement (equivalent to the communication between the closed cavity 3021 and the air guide cavity) in the prior art, the generation of a vortex due to negative pressure at the closed cavity 3021 can be avoided, and the air kinetic energy loss is reduced;

(2) by the sealing convex portion 3222, an idle space inside the main body mechanism 321 can be further reduced, and a vortex caused by negative pressure formed at the internal space of the wind blocking portion 32111 is avoided, so that an effect of reducing air kinetic energy loss is improved;

(3) by optimizing the shape of the guide wall 3220 of the air guiding cover 322, on one hand, the air flow can smoothly enter the air guiding cavity through the separation opening 3210, and on the other hand, the air flow flows to the air outlet cavity 3022 along the guide wall 3220, so that the air guiding effect is improved, the turbulence of the air flow at the guide wall 3220 is reduced, and the kinetic energy loss of the air is reduced;

(4) by arranging the flow dividing plate 323, the air guide cavity is divided into at least two sub-air cavities, so that airflow can flow along different sub-air cavities, turbulence of the airflow in the air guide cavity is reduced, air kinetic energy loss is reduced, airflow outside the separating cylinder 3211 can be stirred, tangential airflow speed is reduced, and dust and impurities settled in the dust collection cavity 301 are prevented from being lifted secondarily.

Example 2

Referring to fig. 6 to 8, there is shown another preferred embodiment of the present invention, the same or similar features as those of embodiment 1, and the same reference numerals as those of embodiment 1 are used in this embodiment in combination with the letter "a".

The present embodiment is different from embodiment 1 mainly in that: the skirt part is connected with the main body mechanism. Only this difference will be described in detail below, and the other parts that are the same as those in embodiment 1 will not be described again.

Referring to fig. 6 to 8, unlike the embodiment 1 in which the skirt portion 324 is integrally provided with the separation cylinder 3211, in the embodiment, the skirt portion 324a is separately provided from the separation cylinder 3211a, and the skirt portion 324a is assembled and sleeved outside the main body mechanism 321 a.

Specifically, the top end of the skirt 324a has a channel 3241a in the middle; the main body mechanism 321a is provided with a first assembly portion 3215a and a second assembly portion 3216a, in an axial direction defined by a central axis Va of the dust separator 32a, the first assembly portion 3215a and the second assembly portion 3216a are both located below the separation port 3210a, the first assembly portion 3215a is located above the second assembly portion 3216a, and the skirt portion 324a is selectively assembled and fixed to one of the first assembly portion 3215a and the second assembly portion 3216a and also can be nondestructively disassembled to be changed over both the first assembly portion 3215a and the second assembly portion 3216 a. That is, the skirt portion 324a can be assembled and fixed to the first assembling portion 3215a by an operator as required, so that the volume of the dust collecting cavity 301 below the skirt portion 324a can be increased, and the dust storage amount can be increased, which is suitable for cleaning dust impurities with relatively large weight and small volume, such as dust, quartz sand, sawdust, rice, doughnut and the like, of the dust collector 100, and is easy to settle to the bottom of the dust collecting cavity 301 of the dust cup 31; the skirt portion 324a can also be fixedly assembled to the second assembling portion 3216a by an operator as required, and at this time, the vacuum cleaner 100 is suitable for cleaning dust and debris such as hair, paper dust, fabric and the like, which are not easy to settle to the bottom of the dust collecting cavity 301 of the dust cup 31, and by increasing the distance between the skirt portion 324a and the separating opening 3210a, the hair, paper dust, cotton wool and the like can be prevented from being accumulated at the separating opening 3210a, thereby reducing the loss of kinetic energy of air.

Preferably, the first assembling portion 3215a and the second assembling portion 3216a are both provided at an outer wall surface of the outlet duct 3212 a. Specifically, the air outlet cylinder 3212a includes an upper end cylinder 32121a and a lower end cylinder 32122a, the first assembling portion 3215a is disposed on an outer wall surface of the upper end cylinder 32121a, when assembling the skirt portion 324a, the skirt portion 324a may be sleeved on the outside of the upper end cylinder 32121a from the upper end downward and fixedly assembled to the first assembling portion 3215a, and then the upper end of the upper end cylinder 32121a is sleeved with the lower end of the separating cylinder 3211 a; the second assembling portion 3216a is provided on an outer wall surface of the lower end cylinder 32122a, and when the skirt portion 324a is assembled, the skirt portion 324a may be fitted around the lower end cylinder 32122a from the upper end downward and fixedly assembled to the second assembling portion 3216a, and then the upper end of the lower end cylinder 32122a may be fitted to the lower end of the upper end cylinder 32121 a. In a modified embodiment, the upper end cylinder 32121a and the lower end cylinder 32122a may be integrally disposed, the air outlet cylinder 3212a and the separating cylinder 3211a may be integrally disposed, the positions of the first assembling portion 3215a and the second assembling portion 3216a and the manner of assembling the skirt portion 324a with the main body mechanism 321 are not limited thereto, and the skirt portion 324a may be selectively assembled between two positions at different heights below the separating opening 3210a in an adjustable manner, so as to achieve the effect of preventing dust from accumulating in the separating opening 3210 a.

In summary, compared with the prior art, the vacuum cleaner of the present embodiment has the following advantages in addition to the same advantages as embodiment 1: the first assembling portion 3215a and the second assembling portion 3216a are provided to allow an operator to adjust an assembling position of the skirt portion 324a and the main body mechanism 321a according to a dust and dirt type, so that the skirt portion 324a is assembled at the first assembling portion 3215a to increase a storage amount of dust in response to dust and dirt with relatively large weight and small volume, and the skirt portion 324a is moved from the first assembling portion 3215a to the second assembling portion 3216a below in response to dust and dirt (such as hair, paper dust, cotton wool, etc.) with relatively small weight and large volume, and dust and dirt are prevented from being accumulated at the separation opening 3210a by increasing a distance between the skirt portion 324a and the separation opening 3210a, thereby reducing air kinetic energy loss.

Example 3

Referring to fig. 9, there is shown another preferred embodiment of the present invention, the same or similar features of the members of embodiment 1, which are identified by the same reference numerals as in embodiment 1 in combination with the letter "b".

The present embodiment is different from embodiment 1 mainly in that: the extension direction of the air inlet of the dust cup. Only this difference will be described in detail below, and the other parts that are the same as those in embodiment 1 will not be described again.

Referring to fig. 9, unlike the embodiment 1 in which the extending direction T of the inlet 3120 is a tangent line of the sidewall 312 of the dirt cup 31, in this embodiment, the extending direction Tb of the inlet 3120b is not a tangent line of the sidewall 312b of the dirt cup 31 b. Specifically, in this embodiment, the side wall 312b is cylindrical and disposed around the central axis Vb, and the extending direction Tb of the air inlet 3120b from the outside to the inside (i.e., along the flowing direction of the airflow) is located on a tangential plane of the side wall 312b, which passes through the tangential line H (which may be approximately equal to the extending direction T in embodiment 1) and is parallel to the central axis Vb; and the extending direction Tb is inclined downwards at an acute included angle with the tangent line H. That is, the air inlet 3120b extends obliquely downward from outside to inside.

Thus, compared with the prior art, the vacuum cleaner of the embodiment has the following advantages besides the advantages similar to those of the embodiment 1: the air inlet 3120b is obliquely extended downwards from outside to inside, so that the air flow can obliquely flow downwards when passing through the air inlet 3120b, the axial downward speed of the air flow in the dust cup 31b is increased, the space volume of light dust impurities such as hair and cotton wool is compressed, the dust impurities are pressed to the skirt part, the probability of the dust impurities attaching to the blocking at the separation opening is reduced, and the air kinetic energy loss is further reduced.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Claims (14)

1. A separation dust collection assembly comprises a dust cup and a dust-gas separator positioned in the dust cup, wherein the dust cup comprises a cylindrical side wall, a closed cover plate arranged at one axial end of the side wall, a base plate arranged at the other axial end of the side wall and an air outlet formed in the base plate; the dust-gas separator is characterized by comprising a main body mechanism and an air guide cover, wherein the main body mechanism comprises a separating cylinder with a plurality of separating ports, an assembling part connected with a first axial end of the separating cylinder and an air outlet cylinder connected with a second axial end of the separating cylinder, the air guide cover is connected with the assembling part in a sealing mode and extends into the separating cylinder, an air guide cavity is formed between the air guide cover and the separating cylinder and communicated to the air outlet through the air outlet cylinder, a closed cavity is formed between the air guide cover and the cover plate, and the closed cavity and the air guide cavity are sealed and isolated by the air guide cover.

2. The dirt cup of claim 1, further comprising an air inlet in the sidewall, wherein the dirt cup includes a windshield between a portion of the separating opening and the mounting portion, wherein the windshield corresponds to the air inlet;

the wind scooper includes a sealing convex portion located at an inner wall surface of the wind blocking portion, wherein:

the sealing convex part is filled in the inner space of the wind shielding part, or the sealing convex part is positioned between the wind shielding part and the separation port so as to seal and isolate the inner space of the wind shielding part from the wind guide cavity.

3. The dirt separator assembly of claim 1 wherein said shroud has a guide wall surface located inwardly of said separating opening, said guide wall surface being concavely curved and gradually approaching the central axis of said separating cylinder in a direction from the axial first end of said separating cylinder to the axial second end of said separating cylinder.

4. The dirt separator assembly of claim 1 wherein said mounting portion is configured in the form of a ring extending outwardly from said separator cylinder and sealingly engaging said dirt cup, said mounting portion including a flange and a groove located about the periphery of said flange;

the wind scooper comprises a flanging which extends into the groove and is tightly attached to the flange.

5. The dirt separator assembly of claim 1 further comprising at least two splitter plates disposed within the air guide cavity and dividing the air guide cavity into at least two sub-air cavities.

6. The dust separation assembly of claim 5, wherein the at least two diverter plates are arranged circumferentially about a central axis of the separation barrel.

7. The dust separation collection assembly of claim 5, wherein the diverter plate extends radially of the separation cartridge and parallel to a central axis of the separation cartridge.

8. The dust separating and collecting assembly of claim 5, wherein said splitter plate is positioned between two adjacent said separating openings and separates said two separating openings on opposite sides thereof.

9. The dust separation collection assembly of claim 1, wherein the separation cartridge extends from an axial first end thereof down along a central axis thereof to an axial second end thereof;

the main body mechanism is provided with two assembling parts which are sequentially arranged from top to bottom below the separation port;

the dust separator further comprises a skirt portion which can be selectively assembled and fixed on one of the two assembling portions and can be disassembled in a nondestructive mode.

10. The dust separation collection assembly of claim 1, wherein the separation cartridge extends from an axial first end thereof down along a central axis thereof to an axial second end thereof;

the dust separator further comprises a skirt portion located below the separation port, the skirt portion extending outwardly and downwardly from the body mechanism;

the dust cup further comprises an air inlet arranged on the side wall, and the air inlet is located above the skirt portion and extends downwards from outside to inside in an inclined mode.

11. The utility model provides a separation collection dirt subassembly, is including the dirt cup that is equipped with the air outlet and be located the dirt gas separator of dirt cup, its characterized in that, dirt gas separator includes:

the main body mechanism comprises an air outlet cylinder and a separating cylinder with a plurality of separating ports;

the air guide cover is arranged in the separating cylinder, and an air guide cavity is formed between the air guide cover and the separating cylinder;

the air guide cavity is divided into at least two sub-air cavities by the at least two flow distribution plates, and each sub-air cavity is communicated to the air outlet through the air outlet cylinder.

12. A breakaway dust collection assembly comprising:

the dust cup comprises a cylindrical side wall and a substrate arranged at the lower end of the side wall;

a dirt and gas separator located within the dirt cup, the dirt and gas separator comprising:

the main body mechanism comprises a separating cylinder with a plurality of separating ports, an air outlet cylinder positioned between the separating cylinder and the substrate, and two assembling parts which are sequentially arranged below the separating ports from top to bottom;

and the skirt part can be selectively assembled and fixed on one of the two assembling parts and can be nondestructively disassembled.

13. A breakaway dust collection assembly comprising:

the dust cup comprises a cylindrical side wall, a cover plate arranged at the upper end of the side wall, a base plate arranged at the lower end of the side wall and an air inlet arranged on the side wall;

a dirt and gas separator located within the dirt cup, the dirt and gas separator comprising:

the main body mechanism comprises a separating cylinder with a plurality of separating ports and an air outlet cylinder positioned between the separating cylinder and the substrate;

a skirt located below the separation opening;

wherein, the air inlet is positioned above the skirt part and extends downwards from outside to inside in an inclined way.

14. A vacuum cleaner comprising the dust separation assembly of any one of claims 1-13.

Images