CN106955059B

CN106955059B - Dust collector suction nozzle and dust collector

Info

Publication number: CN106955059B
Application number: CN201710168120.6A
Authority: CN
Inventors: 彭劲松; 梁玉
Original assignee: SUZHOU WEIKESI ELECTRICAL APPLIANCES CO Ltd
Current assignee: SUZHOU WEIKESI ELECTRICAL APPLIANCES CO Ltd
Priority date: 2016-07-08
Filing date: 2017-03-21
Publication date: 2020-02-07
Anticipated expiration: 2037-03-21
Also published as: WO2018006432A1; CN206403707U; CN106955059A

Abstract

The invention provides a suction nozzle of a dust collector and the dust collector, which are used for sweeping dust on a surface to be cleaned, so that the swept dust really enters a dust collecting mechanism of the dust collector instead of remaining in the suction nozzle. The invention provides a suction nozzle of a dust collector, which is combined with a suction opening part of a body of the dust collector, and comprises: an outer base portion located inside the housing and rotatable around a predetermined central axis; an inner base part which is arranged inside the outer base part and can rotate around the same central axis with the outer base part; the reversing mechanism is used for driving the outer base part and the inner base part to rotate around the same central axis in opposite directions; and the driving component is used for driving the operation of the reversing mechanism, wherein the air duct part comprises a connecting air duct part and a dust absorption air duct part communicated with the connecting air duct part, the connecting air duct part is communicated with the air suction opening part, the dust absorption air duct part is communicated with the bottom opening, the inner side base part is provided with an inner side cleaning component, and the outer side base part is provided with an outer side cleaning component.

Description

Dust collector suction nozzle and dust collector

Technical Field

The invention particularly relates to a suction nozzle of a dust collector and the dust collector comprising the suction nozzle of the dust collector.

Background

Dust collectors have been widely used in ordinary households to conveniently suck dust, but have not been good in cleaning hair because the hair is easily adhered to the surface of a carpet or a cloth sofa, and is difficult to suck away by an ordinary suction nozzle. Suction nozzles with rotating roller brushes have long appeared, which contain roller bodies and brush filaments. The brush wires can take away the hair adhered to the carpet during the high-speed rotation, but most of the hair taken away by the brush wires does not really enter a dust collecting mechanism of the dust collector, but is wound on the roller body, and is tightly wound with the roller body due to the high-speed rotation and difficult to remove, and a user needs to try to remove the wound hair on the roller brush after dust collection. Thus, the hair sweeping problem is not really solved.

Patent document WO2015035545A discloses a suction nozzle, wherein an air door is arranged behind a rotary rolling brush, the opening width of the air door is not less than the width of the distribution range of the brush filaments on the rolling body, and an air guide channel is arranged behind the air door, so that when each brush filament points to the air door, the direction of the air flow flowing through the brush filament and entering the air door is the same as the extending direction of the brush filament, therefore, the hair can be more easily peeled off from the brush filament by the suction air flow, and the hair is prevented from crossing the air door along with the brush filament to be wound on the rolling body. It has been found experimentally that the nozzle disclosed in WO2015035545A has a superior hair removal effect to conventional nozzles with rotating rolling brushes, and significantly reduces the tendency of hair to become entangled on the roller body. However, if the hair is held tightly between the plurality of brush filaments across the damper, the hair will still become entangled with the roller body; or when the initial position of the hair contacting the brush filaments is not at the tips of the brush filaments but at the roots of the brush filaments, this also results in that the hair is not smoothly sucked away as it passes through the damper along with the brush filaments, but is wound around the roller body across the damper and becomes tighter as the roller brush rotates at a high speed, and is eventually difficult to remove.

Disclosure of Invention

The present invention has been made to solve the above problems, and it is an object of the present invention to provide a suction nozzle of a vacuum cleaner and a vacuum cleaner for sweeping dust and hairs from a surface to be cleaned such that the swept dust and hairs really enter a dust collecting mechanism of the vacuum cleaner instead of remaining inside the suction nozzle.

In order to achieve the above purpose, the invention adopts the following structure:

< Structure 1>

The invention provides a suction nozzle of a dust collector, which is combined with a suction opening part of a body of the dust collector and is used for cleaning dust and hair on a surface to be cleaned, and is characterized by comprising the following components: a housing including a bottom for contacting a surface to be cleaned and having a bottom opening; the air duct part is arranged in the shell and communicated with the air suction opening part; an outer base part disposed inside the housing and rotatable about a predetermined central axis; an inner base part which is arranged inside the outer base part and can rotate around the same central axis with the outer base part; a reversing mechanism for causing the outer base portion and the inner base portion to rotate in opposite directions with respect to each other about the same central axis; and the driving component is used for driving the operation of the reversing mechanism, wherein the air duct part comprises a connecting air duct part and a dust absorption air duct part communicated with the connecting air duct part, the connecting air duct part is communicated with the air suction opening part, the dust absorption air duct part is communicated with the bottom opening, the inner side base part is provided with an inner side cleaning component, and the outer side base part is provided with an outer side cleaning component.

< Structure 2>

Further, the present invention provides a vacuum cleaner, comprising: a cleaner body having a suction opening; and a dust collector nozzle communicated with the air suction opening portion, wherein the dust collector nozzle is the dust collector nozzle in the < structure 1 >.

Action and Effect of the invention

According to the dust collector suction nozzle and the dust collector, the inner side base part, the outer side base part and the reversing mechanism are arranged in the dust collector suction nozzle, the inner side base part and the outer side base part can be mutually reversed around the same central axis under the action of the reversing mechanism, so that the outer side cleaning component and the inner side cleaning component can be mutually reversed, and when hair is dragged on the outer side cleaning component, the hair can be peeled off by the inner side cleaning component in the rotating process and then falls into the dust collection air duct part to be sucked away. Therefore, when a user uses the suction nozzle of the dust collector and the dust collector to clean a surface to be cleaned, hairs can really enter the dust collector instead of being wound inside the suction nozzle.

Drawings

FIG. 1 is a perspective view of a suction cleaner nozzle in an embodiment of the present invention;

FIG. 2 is a bottom view of a suction nozzle of the vacuum cleaner in an embodiment of the present invention;

FIG. 3 is an exploded view of a suction cleaner nozzle in an embodiment of the present invention;

FIG. 4 is a top view of a suction cleaner nozzle in an embodiment of the present invention;

FIG. 5 is a cross-sectional view A-A of FIG. 4 of the present invention;

FIG. 6 is a cross-sectional view A-A of the outer base section, the inner base section, and the reversing mechanism of FIG. 4 after being hidden in accordance with the present invention;

FIG. 7a is a schematic structural view of an inner base part and a part of a reversing mechanism in an embodiment of the present invention, FIG. 7B is a schematic structural view of an outer base part and a part of a reversing mechanism in an embodiment of the present invention, FIG. 7c is a plan view after assembly of FIGS. 7a and 7B, and FIG. 7d is a sectional view B-B of FIG. 7 c;

FIG. 8 is a schematic view of a reversing mechanism and drive member in an embodiment of the invention;

FIG. 9 is a bottom view of a suction nozzle of a vacuum cleaner according to a first modification of the present invention; and

fig. 10 is a bottom view of a suction nozzle of a vacuum cleaner according to a second modification of the present invention.

Detailed Description

Hereinafter, the suction nozzle of the cleaner and the cleaner according to the present invention will be described in detail with reference to the accompanying drawings.

As a first aspect, the present invention provides a suction nozzle of a vacuum cleaner for cleaning dust and hair on a surface to be cleaned, coupled to a suction opening portion of a main body of the vacuum cleaner, comprising: a housing including a bottom for contacting a surface to be cleaned and having a bottom opening; the air duct part is arranged in the shell and communicated with the air suction opening part; an outer base part disposed inside the housing and rotatable about a predetermined central axis; an inner base part which is arranged inside the outer base part and can rotate around the same central axis with the outer base part; the reversing mechanism is used for driving the outer base part and the inner base part to rotate around the same central axis in opposite directions; and the driving component is used for driving the reversing mechanism, wherein the air duct part comprises a connecting air duct part and a dust absorption air duct part communicated with the connecting air duct part, the connecting air duct part is communicated with the air suction opening part, the dust absorption air duct part is communicated with the bottom opening, the inner side base part is provided with an inner side cleaning part, and the outer side base part is provided with an outer side cleaning part.

In the first aspect, the present invention may further have a feature that: the reversing mechanism comprises an internal gear arranged at the upper end of the outer base part, an external gear arranged at the upper end of the inner base part and a reversing gear meshed with the external gear and the internal gear simultaneously, wherein the reversing gear is arranged between the internal gear and the external gear.

In the first aspect, the present invention may further have a feature that: the inner side base part is also provided with an inner side pipeline part which is sleeved on the outer wall of the dust collection air duct part through a bearing and can rotate around the dust collection air duct part, and the outer side base part is also provided with an outer side pipeline part which is sleeved on the inner side pipeline part through a bearing and can rotate around the inner side pipeline part.

In the first aspect, the present invention may further have a feature that: wherein the driving member includes any one of a driving motor and an axial flow turbine.

In the first aspect, the present invention may further have a feature that: the outer side cleaning component is an outer side brush strip, the tail end of the outer side brush strip points to the surface to be cleaned, the inner side cleaning component is an inner side brush strip, and the tail end of the inner side brush strip is higher than the tail end of the outer side brush strip.

In a second aspect, the present invention provides a vacuum cleaner, comprising: a cleaner body having a suction opening; and a dust collector suction nozzle communicated with the air suction opening part, wherein the dust collector suction nozzle is the dust collector suction nozzle in the first embodiment.

< example >

In the present embodiment, the cleaner nozzle 10 is used in combination with a suction opening portion of a cleaner body to clean dust and hair on a surface to be cleaned.

FIG. 1 is a perspective view of a suction cleaner nozzle in an embodiment of the present invention, and FIG. 2 is a bottom view of the suction cleaner nozzle in an embodiment of the present invention; FIG. 3 is an exploded view of a suction cleaner nozzle in an embodiment of the present invention; FIG. 4 is a top view of a suction cleaner nozzle in an embodiment of the present invention; FIG. 5 is a cross-sectional view A-A of FIG. 4 of the present invention; FIG. 6 is a cross-sectional view A-A of the invention after the outer base section, the inner base section, and the reversing mechanism of FIG. 4; FIG. 7a is a schematic structural view of an inner base part and a part of a reversing mechanism in an embodiment of the present invention, FIG. 7B is a schematic structural view of an outer base part and a part of a reversing mechanism in an embodiment of the present invention, FIG. 7c is a plan view after assembly of FIGS. 7a and 7B, and FIG. 7d is a sectional view B-B of FIG. 7 c; fig. 8 is a schematic view of a reversing mechanism and a driving member in an embodiment of the invention.

As shown in fig. 1 to 8, in the present embodiment, the vacuum cleaner nozzle 10 includes a housing 11, an air duct portion 12, an inner base portion 13, an outer base portion 14, a reversing mechanism 15, and a driving member.

As shown in fig. 1 and 2, the housing 11 has a square shape and includes an upper cover 20, side plates 21, and a bottom plate 22. The bottom plate 22 and the side plate 21 are integrally formed, and then are matched with the upper cover 20 to form a cavity 23 for accommodating different parts. The side plate 21 is provided with an air outlet pipe 24, and the air outlet pipe 24 is used for communicating the air duct 12 with the air suction opening of the dust collector. The sole plate 22 contacts the surface to be cleaned and has a downwardly opening suction opening 28.

As shown in fig. 5 and 6, the air duct portion 12 is provided in the housing and communicates with the suction port portion of the cleaner through the outlet duct portion 24. The air duct portion 12 includes a connecting air duct portion 25 and a dust suction air duct portion 27. The cross section of the connecting air channel part 25 is circular.

The dust suction duct portion 27 is substantially cylindrical and perpendicular to the bottom plate 22 of the housing 11. The dust suction duct portion 27 has a central axis and a bottom air guide plate 29.

The bottom air deflector 29 is flared downward and outward, and the top is provided with a circular hole which is communicated with the dust collection air duct part 27.

As shown in fig. 7a, the inner base portion 13 is fitted to the outer wall of the dust suction duct portion 27 via an inner base bearing 50. The inner base part 13 is rotatable 360 degrees around the central axis of the dust suction duct part 27, and includes an inner annular cleaning part 37 and an inner duct part 51.

The inside annular cleaning portion 37 includes an inside bottom surface and an inside cleaning member 39 provided on the inside bottom surface.

The inner bottom surface is circular ring-shaped, and the rotation track of the inner bottom surface is circular ring-shaped. When the cleaner nozzle 10 is positioned on a horizontal surface, the inner bottom surface is parallel to the horizontal surface.

The inside cleaning member 39 is an inside brush bar 39. The inner brush bar 39 is offset from the central axis and forms an angle of 65 degrees with the bottom plane of the inner annular sweeping portion 37. The end of the inner brush bar 39 is higher than the bottom surface of the housing 11. The inner circular cleaning portion 37 is provided with 3 sets of 9 inner brush strips 39. The three groups of inner side brush strips 39 are uniformly distributed on the same circumference at intervals of 120 degrees, and the three inner side brush strips 39 of each group are arranged along the circumference. Each inner brush strip 39 is formed by a plurality of inner brush filaments. The material of the inner side brush filaments is plastic, preferably nylon.

As shown in fig. 7b, the outer base part 14 is located inside the housing 11 and is rotatable 360 degrees around a central axis. The outer base part 14 includes an outer annular cleaning part 36 and an outer duct part 48.

The outer ring cleaning portion 36 includes an outer ring bottom surface and an outer cleaning member 38 provided on the outer ring bottom surface. When the cleaner nozzle 10 is positioned on a horizontal surface, the bottom surface of the outer ring is parallel to the horizontal surface.

In the present embodiment, the outer cleaning member 38 is an outer brush bar 38. The outer brush bar 38 is perpendicular to the bottom surface of the outer ring. The end of the outer brush bar 38 projects out of the suction opening 28 towards the surface to be cleaned. The outer circular cleaning portion 36 is provided with 3 sets of 9 outer brush bars 38. The three groups of outer brush strips 38 are uniformly distributed on the same circumference at intervals of 120 degrees, and the three outer brush strips 38 in each group are also arranged along the circumference. Each outer brush bar 38 is formed from a plurality of outer brush filaments. The material of the outer brush filaments is plastic, preferably nylon.

The outer duct portion 48 is fitted to the outer wall of the inner duct portion 51 by an outer base bearing 53.

As shown in fig. 7a, 7c, and 7d, the inner base portion 13 is provided inside the outer base portion 14, and the outer base portion 14 is fitted to the outer wall of the inner duct portion 51 through a bearing. The bottom surface of the inner base part 13 is flush with the bottom surface of the outer base part 14 and is higher than the bottom surface of the bottom plate 22 by a height difference of about 8 mm. The inner brush bar 39 ends higher than the bottom surface of the housing, and the outer brush bar 38 ends lower than the bottom surface of the housing.

As shown in fig. 2 and 6, a bottom air deflector 29 is arranged below the air duct portion 12 and extends downward in a trumpet shape, the bottom surface of the bottom air deflector 29 is higher than the bottom 22 of the frame 11, and when the bottom 22 is placed on the surface to be cleaned, the bottom edge of the bottom air deflector 29 is substantially flush with the bottom surface of the outer circular ring and the bottom surface of the inner circular ring, so as to form a trumpet-shaped dust collection suction inlet. The air duct inlet 30 is located at the center of the top of the bottom air deflector 29 and is hermetically connected with the top of the bottom air deflector 29, the bottom air deflector 29 flares downwards and around from the air duct inlet 30 in a trumpet shape, and the suction force at the air duct inlet 30 is transmitted to the edge of the bottom air deflector 29, so that dust and hair can enter the dust collection suction inlet from the dust collection opening 28 of the frame body 11 and then enter the air duct inlet 30 to be sucked away. The bottom surface of the inner ring can be slightly higher than that of the outer ring, and the lower edge of the bottom air deflector 29 can be slightly higher than that of the inner ring, so that the progressive structure is favorable for hair and dust to enter the air duct inlet.

As shown in fig. 3 and 8, the axial turbine 32 and the rotating shaft 33 are engaged with the bearing 35 through the bearing mounting shaft 54, and when the suction airflow impacts the axial turbine 32, the bearing mounting shaft 54 can rotate freely in the bearing, and further, the driving gear 41 below the bearing mounting shaft 54 is rotated. The bearings are located within the bearing chamber 55 and for clarity of presentation of other parts, figure 8 shows only the bearing chamber 55 and does not show the bearings and the drive gear 41.

The reversing mechanism 15 includes an internal gear 45 provided on the outer base portion 14, an external gear 44 provided on the inner base portion 13, and a reversing gear 46. The rotating shaft 40b of the counter gear 46 is fixed (see fig. 1 and 3), and is engaged with the counter gear through a bearing, and the counter gear is allowed to freely rotate around the fixed rotating shaft 40 b.

The internal gear 45 is provided at the upper end of the outer pipe portion 48.

The external gear 44 is provided at the upper end of the inner pipe portion 51. The external gear 44 meshes with the reduction gear.

The reduction gear is engaged with the fixed rotary shaft 40a through a bearing and is rotatable about the rotary shaft 40a, and includes an upper gear 42 and a lower gear 43 which are integrally formed. The upper gear 42 is engaged with the driving gear 41 and rotated by the driving gear 41, thereby carrying the lower gear 43 integrated therewith. The lower gear 43 meshes with the external gear 44 of the inner base portion 13, and rotates the external gear 44. The outer diameter of the upper gear 42 is much larger than the outer diameter of the drive gear 41, so the rotation speed of the upper gear 42 is lower than that of the drive gear 41. The diameter of the lower gear 43 is smaller than that of the outer gear 44. The reduction ratio from the turbine 32 to the external gear 44 is approximately 1: that is, the rotation speed of the axial turbine 32 is reduced from about thirty thousand per minute to about 2000 revolutions per minute of the external gear 44.

The reverse rotation gear 46 is provided between the external gear 44 and the internal gear 45 while meshing with the external gear 44 and the internal gear 45, so that the external gear 44 and the internal gear 45 are reversed to each other, and further, the inner base portion 13 and the outer base portion 14 are reversed to each other about the same central axis. The rotation speed of the outer gear 44 is slightly higher than that of the inner gear 45.

As shown in fig. 1 and 3, 40a is a reduction gear positioning shaft, and 40b is a reverse gear positioning shaft, which are respectively tightly fitted to the housing 11, and the tip ends of which are exposed on the surface of the upper cover 20. During rotation, the reduction gear and the counter gear 46 both rotate about their respective positioning axes in a fixed position.

As shown in fig. 3, 6, and 8, the driving member in the present embodiment includes an axial turbine 32. An axial turbine 32 is disposed within the drive duct 26. The driving air duct 26 is provided with an air guiding cover 31, an axial turbine 32, a transmission shaft 33, a bearing chamber 34, and a bearing 35 in this order from top to bottom. The drive air duct 26 communicates with the connecting air duct portion 25.

The air inlet of the driving air duct 26 is provided at the top of the upper cover 20. The air guiding cover 31 is arranged outside the air inlet of the driving air duct 26, and a mesh enclosure for blocking foreign matters can be additionally arranged outside the air guiding cover 31. The axial flow turbine 32 is tightly coupled to the drive shaft 33, and a bearing mounting shaft 54 is provided at a lower portion of the drive shaft 33. The bearing 35 is sleeved on the periphery of the bearing mounting shaft 54. The drive gear 41 is closely fitted to the transmission shaft 33. The driving airflow flows in from the air inlet, and pushes the axial flow turbine 32 to rotate through the air guiding cover 31 in the driving air duct 26, so as to drive the driving gear 41. The airflow passes through the axial turbine 32 and then flows to the outlet duct portion 24 along the connecting duct portion 25.

The working process of the dust collector nozzle of the embodiment is as follows:

the suction nozzle 10 of the cleaner is connected to the suction opening of the cleaner and the cleaner is started. The air suction opening part can be positioned at the tail end of an extension pipe of a common dust collector, can be positioned below a main machine of the vertical dust collector, and can also be positioned at the front part of a dust cup of the vehicle-mounted dust collector. The air suction opening part can be directly communicated with the dust collector suction nozzle 10, and can also be indirectly communicated through the air outlet pipe part 24. The air flow flows in from the air inlet of the axial flow turbine 32 and the air inlet 30 of the dust collection air duct simultaneously, pushes the axial flow turbine 32 to rotate through the air guide cover 31 in the driving air duct 26, and flows to the air outlet duct portion 24 along the connecting air duct portion 25 after flowing through the axial flow turbine 32.

The axial turbine 32 rotates the drive gear 41, and the drive gear 41 drives the reduction gear. The reduction gear drives the external gear 44, which in turn rotates the reverse gear 46. The reverse rotation gear 46 in turn rotates the inner gear 45 in the reverse direction with respect to the outer gear 44.

The inner base part 13 and the outer base part 14 are mutually reversed around the same central axis, the outer brush strip 38 lifts dust and hair, and the dust and the hair enter the trumpet-shaped dust collection suction inlet under the driving of suction airflow. If a hair is caught on the outer brush bar 38, the inner brush bar, which is counter-rotating with respect to the outer brush bar, will pull the hair towards the end of the outer brush bar 38 each time it encounters the hair. The relative rotation speed of the inner side brush strip and the outer side brush strip is about 4000 revolutions per minute, the inner side brush strip is more than one group, the number of times of pulling hair hung on the outer side brush strip per minute reaches 8000 times or more, therefore, the pulled hair can be pulled to the tail end of the outer side brush strip always and is lifted by the inner side brush strip, and finally the hair falls into the air flow to be sucked away. If hair is caught on the inner brush strip, it is also peeled off by the outer brush strip by the same pulling action. 8000 or even more pulls per minute, a quick exchange of hair between the different brush bars can be achieved, eventually pulling it off the brush bar and into the air stream to be sucked away.

Effects and effects of the embodiments

According to the dust collector suction nozzle and the dust collector related by the embodiment, because the inner side base part, the outer side base part and the reversing mechanism are arranged in the dust collector suction nozzle, the inner side base part and the outer side base part can be mutually reversed around the same central axis under the action of the reversing mechanism, so that the outer side cleaning component and the inner side cleaning component can be mutually reversed, the hair and the dust on the hard floor leave the hard floor due to the suction force, the hair and the dust on the carpet leave the carpet under the combined action of the suction force and the stirring of the outer side brush strip, in both cases, the dust and part of the hair can enter the dust collection air channel to be sucked away, the hair can be clamped and grabbed by the outer side brush strip, the hair can not be peeled from the outer side brush strip only by the suction force, and the inner side brush strip which reversely rotates relative to the outer side brush strip can interact with the, pulling them to the end of the outer brush bar and eventually allowing them to fall into the air stream to be drawn away. Therefore, when the user uses the suction nozzle of the dust collector in the embodiment and the dust collector to clean dust and hair on the surface to be cleaned, the hair can really enter the dust collector instead of being wound inside the suction nozzle.

In addition, because the tail end of the inner brush strip is higher than the bottom surface of the frame body, the tail end of the outer brush strip penetrates out of the dust suction opening, the inner brush strip inclines towards the inlet of the dust suction air duct, and the inner brush strip is closer to the inlet of the dust suction air duct, the stripped hair can more easily enter the air flow instead of being wound inside the suction nozzle after the hair wound on the outer brush strip is stripped by the inner brush strip.

In addition, the horn-shaped opening below the dust collection air duct can also transmit the suction force to the position near the inner side brush strip, so that the hairs excited by the brush strip are subjected to stronger suction force and are easier to suck away.

In the above embodiment, the reversing mechanism 15 includes the internal gear 45 provided on the outer base portion 14, the external gear 44 provided on the inner base portion 13, and the reversing gear 46. An independent reduction gear is arranged besides the reverse gear. As the reversing mechanism of the present invention, the inner base part 13 and the outer base part 14 may be rotated in the reverse direction by arranging the lower gear of the reduction gear set and the reversing gear in the same manner, and by arranging the lower gear of the reduction gear between the outer gear 44 and the inner gear 45 and meshing the lower gear with the outer gear 44 and the inner gear 45. Therefore, one gear can be reduced from the gear set, and the manufacturing cost and the working noise are favorably reduced.

In the above embodiment, the reversing mechanism 15 is only driven by gears. In the invention, according to actual needs, a belt transmission can also be adopted.

In the above embodiment, the driving member in the present invention includes the axial turbine 32, and the air inlet of the axial turbine is provided on the upper cover 20.

In addition, in the above embodiment, the driving member is the axial turbine 32, and as the driving member of the present invention, the driving member may be a direct current or alternating current motor according to the actual requirement. The reverse gear is assembled on the output shaft of the motor and is simultaneously meshed with the external gear and the internal gear, and the reverse function can be realized. Such setting is only required to satisfy the driving condition.

In the above embodiment, the outer cleaning member 38 and the inner cleaning member 39 are an outer brush bar and an inner brush bar, respectively, and the brush bars are composed of brush filaments, and the material of the brush filaments is plastic, preferably nylon. In the present invention, the material of the brush filaments may be carbon fiber material according to the actual requirement.

In the above embodiment, the outer cleaning member 38 and the inner cleaning member 39 are an outer brush bar and an inner brush bar, respectively. In the present invention, the outer cleaning member 38 and the inner cleaning member 39 may be made of lint attached to the bottom surfaces of the outer ring and the inner ring, respectively, or may be made of other materials capable of cleaning hairs, as required in actual circumstances.

In the above embodiment, the inner base portion 13 and the outer base portion 14 are located on the same plane, and the outer cleaning member 38 and the inner cleaning member 39 are an outer brush bar and an inner brush bar, respectively. In the present invention, the heights of the outer cleaning member 38 and the inner cleaning member 39 can be adjusted to ensure that the ends of the outer brush bars 38 extend downward or are flush with the bottom surface and the ends of the inner brush bars 39 do not extend downward beyond the bottom surface but are higher than the ends of the outer brush bars 39, in two horizontal planes having different heights, as the case may be.

In the above embodiment, the outer cleaning member 38 is fixed to the bottom surface of the outer ring, and the inner cleaning member 39 is fixed to the bottom surface of the inner ring. In the present invention, in order to facilitate the removal and replacement of the outer cleaning member and the inner cleaning member 39, the outer cleaning member 38 and the inner cleaning member 39 may be fixed to the intermediate carrier, and the intermediate carrier may be fixed to the outer annular bottom surface and the inner annular bottom surface, respectively, as required in the actual situation.

In the above embodiment, the outer cleaning member 38 is perpendicular to the outer annular bottom surface, and forms an angle of 90 degrees with the bottom plane of the outer annular bottom surface. The outer cleaning member of the present invention may be offset from the central axis, and may have an angle of 55 to 90 degrees with respect to the bottom plane of the bottom surface of the outer ring.

In addition, in the above embodiment, the inner brush bar 39 is offset toward the central axis, and forms an angle of 65 degrees with the bottom plane of the inner annular cleaning portion 37. The outer cleaning member of the present invention may have an angle of 55 to 75 degrees with respect to the bottom plane of the bottom surface of the outer ring.

In the above embodiment, the outer annular bottom surface is annular. In the invention, according to the requirement of actual situation, the bottom surface of the outer circular ring is in a square shape or other shapes, and is connected with the rotating shaft like the fan blade, as long as the motion track is still in a circular ring shape.

Further, in the above embodiment, the outer shape of the housing 11 is a square. In the present invention, the outer shape of the housing is set to be circular or other shape according to the actual needs.

In the above embodiment, the bottom plate 22 is integrally formed with the side plate 21. In the invention, the bottom plate 22 and the side plate 21 are combined through the spring to form a floating structure according to the requirement of actual conditions, so that when the rugged surface is cleaned, the bottom plate 22 can be better attached to the surface to be cleaned, and a better hair removing and cleaning effect is obtained.

The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.

< modification example I >

In the first modification, the same components as those in the first embodiment are denoted by the same reference numerals, and the same description thereof will be omitted.

Fig. 9 is a bottom view of a vacuum cleaner nozzle according to a first modification of the present invention.

As shown in fig. 9, in the first modification, the air duct inlet 60 is provided at a position offset from the center of the bottom air deflector 29, and the air duct inlet 60 is near the inner brush 39 and near the end thereof, and has a truncated cone-like outer shape for preventing entanglement of hair.

< modification example two >

In the second modification, the same components as those in the first embodiment are denoted by the same reference numerals, and the same description thereof will be omitted.

As shown in fig. 10, in the second modification, 3 sets of 6 inner brush bars 39 are provided in the inner annular cleaning portion 62. The three groups of inner brush strips 39 are evenly distributed on the same circumference at intervals of 120 degrees. The two inner side brush strips 39 of each group are arranged along the radial direction of the trumpet-shaped bottom air deflector. The three groups of inner brush strips can be changed into two groups or other groups, and different inner brush strips in each group can be staggered and arranged on different radiuses instead of the same radial direction.

The outer circular cleaning portion 61 is provided with 3 sets of 9 outer brush bars 38 in total. The three sets of outer brush bars 38 are evenly distributed on the same circumference at 120 degrees intervals. The three outer side brush strips 38 of each group are arranged in a triangular shape.

Claims

1. A suction nozzle of a vacuum cleaner, combined with a suction opening portion of a body of the vacuum cleaner, for cleaning dust and hair on a surface to be cleaned, comprising:

a housing including a bottom for contacting the surface to be cleaned and having a bottom opening;

the air channel part is arranged in the shell and is communicated with the air suction opening part;

an outer base portion provided inside the housing and rotatable about a predetermined central axis;

an inner base part provided inside the outer base part and rotatable around the central axis together with the outer base part;

a reverse rotation mechanism for driving the outer base portion and the inner base portion to rotate in opposite directions to each other around the central axis; and

a driving member for driving the reverse rotation mechanism,

wherein the air duct part comprises a connecting air duct part and a dust absorption air duct part communicated with the connecting air duct part, the connecting air duct part is communicated with the air suction opening part, the dust absorption air duct part is communicated with the bottom opening,

the inner base part is provided with an inner cleaning component,

the outer base part is provided with an outer cleaning component,

the inner side base part is also provided with an inner side pipeline part which is sleeved on the outer wall of the dust absorption air duct part through a bearing and can rotate around the dust absorption air duct part,

the outer side base part is also provided with an outer side pipeline part, and the outer side pipeline part is sleeved on the inner side pipeline part through a bearing and can rotate around the inner side pipeline part.

2. The vacuum cleaner nozzle of claim 1, wherein:

wherein the reverse rotation mechanism includes an internal gear provided at an upper end of the outer base portion, an external gear provided at an upper end of the inner base portion, and a reverse rotation gear simultaneously meshing with the external gear and the internal gear,

the reverse rotation gear is disposed between the inner gear and the outer gear.

3. The vacuum cleaner nozzle of claim 1, wherein:

wherein the driving member includes any one of a driving motor and an axial turbine.

4. The vacuum cleaner nozzle of claim 1, wherein:

wherein the outer sweeping component is an outer brush bar, the tail end of the outer brush bar points to the surface to be cleaned,

the inner side cleaning component is an inner side brush strip, and the tail end of the inner side brush strip is higher than the tail end of the outer side brush strip.

5. A vacuum cleaner, comprising:

a cleaner body having a suction opening; and

a suction nozzle of the dust collector communicated with the air suction opening part,

wherein the vacuum cleaner nozzle is as claimed in any one of claims 1 to 4.