阅读说明：本技术 地刷及清洁设备 (Scrubbing brush and cleaning device ) 是由 熊英杰 王耀君 凌宇征 罗曼·卡闵斯基 康拉德·奥索斯基 马辛·科查拉 安德采·克鲁杰科 于 2020-04-24 设计创作，主要内容包括：一种地刷和清洁设备,其中所述地刷包括壳体以及设置在所述壳体内的滚刷和风轮组件,风轮组件通过传动组件连接滚刷；其中,风轮组件包括转轴和设置在转轴上的风轮本体,减速装置与风轮组件关联以限制风轮组件的转速,其中减速装置包括与风轮组件的转轴关联从而可随风轮组件转动的运动部,及设于所述运动部径向的外部并相对于运动部间隔设置的静止部,所述运动部具有受旋转离心力作用从而可与所述静止部接触并发生滑动摩擦的刹车部。通过设置于风轮组件转动相关联的减速部件,能够实现在清洁不同物体表面时自动控制滚刷转速,并改善地刷工作时产生的噪音。(A floor brush and cleaning equipment are provided, wherein the floor brush comprises a shell, a rolling brush and a wind wheel component, wherein the rolling brush and the wind wheel component are arranged in the shell; the wind wheel assembly comprises a rotating shaft and a wind wheel body arranged on the rotating shaft, the speed reduction device is associated with the wind wheel assembly to limit the rotating speed of the wind wheel assembly, the speed reduction device comprises a moving part which is associated with the rotating shaft of the wind wheel assembly and can rotate along with the wind wheel assembly, and a static part which is arranged on the radial outer part of the moving part and is arranged at an interval relative to the moving part, and the moving part is provided with a braking part which is acted by a rotating centrifugal force and can be contacted with the static part and generate sliding friction. Through setting up in the speed reduction part that the wind wheel subassembly rotated the relevance, can realize the automatic control round brush rotational speed when cleaning different object surfaces to improve the noise that scrubbing brush during operation produced.)

1. A floor brush comprises a shell, a rolling brush (10) and a wind wheel component (20) which are arranged in the shell, wherein the wind wheel component (20) is connected with the rolling brush (10) through a transmission component (40); wherein, wind wheel subassembly (20) are including pivot (202) and wind wheel body (201) of setting on pivot (202), its characterized in that: the speed reduction device (30) is associated with the wind wheel assembly (20) to limit the rotating speed of the wind wheel assembly (20), wherein the speed reduction device (30) comprises a moving part (301) which is associated with a rotating shaft (202) of the wind wheel assembly (20) so as to rotate along with the wind wheel assembly (20), and a static part (302) which is arranged at the radial outer part of the moving part (301) and is arranged at an interval relative to the moving part (301), and the moving part (301) is provided with a braking part (303) which is acted by the rotating centrifugal force so as to be contacted with the static part (302) and generate sliding friction.

2. A floor brush according to claim 1, characterized in that the stationary part (302) is arranged at the periphery of the moving part (301) around the moving part (301).

3. A floor brush according to claim 1 or 2, characterized in that the moving part (301) further comprises a fixed end (3011), a free end (3012) and a connecting part (3013) connecting the two; the fixed end (3011) is fixedly connected with the rotating shaft (202), when the rotating shaft (202) rotates, the free end (3012) can move in the direction away from the center of the rotating shaft, and the brake part (303) is located on the free end (3012).

4. A floor brush as claimed in claim 3, characterized in that the fixed end (3011) and the connecting portion (3013) are made in one piece; or the fixed end (3011), the connecting portion (3013) and the free end (3012) are integrally formed.

5. A floor brush as claimed in claim 4, characterized in that the fixed end (3011), the connecting portion (3013) and the free end (3012) are made of POM plastic.

6. A floor brush as claimed in claim 4, characterized in that the connecting portion (3013) has a tapered cross-section.

7. A floor brush according to claim 1, characterized in that the deceleration device (30) comprises at least two moving parts (301), and that the two moving parts (301) are evenly distributed around the rotation axis (202).

8. A floor brush according to claim 1, characterized in that the wind wheel assembly (20) further comprises a wind wheel housing (203), the wind wheel housing (203) comprising a first chamber (2031) and a second chamber (2032), wherein the wind wheel body (201) and the reduction means (30) are arranged in said first chamber (2031) and said second chamber (2032), respectively.

9. A floor brush according to claim 8, characterized in that the stationary part (302) is fixedly arranged at the inner wall of the second chamber (2032) in which it is located.

10. A floor brush according to claim 8, characterized in that a first barrier (501) is arranged between the first (2031) and the second (2032) chamber to separate the two chambers.

11. A floor brush according to claim 10, further comprising a second barrier (502); the first blocking part (501) is arranged on the inner wall of the wind wheel cover (203), the second blocking part (502) is arranged on the rotating shaft (202), and the inner peripheral edge of the first blocking part (501) is tightly attached to the outer peripheral edge of the second blocking part (502).

12. A floor brush according to claim 1 or 2, characterized in that the stationary part (302) is an annular metal piece.

13. A floor brush according to claim 1, characterized in that the free end (3012) or the brake (303) has a circular arc shaped circumference.

14. A floor brush according to claim 1, characterized in that the wind wheel body (201) is arranged coaxially with the reduction means (30).

15. A cleaning device comprising a floor brush as claimed in any one of claims 1-15.

Technical Field

The invention relates to the technical field of household appliances, in particular to a floor brush and cleaning equipment.

Background

The existing method for adjusting the rotating speed of the rolling brush is to adjust the rotating speed by changing the air inlet volume of an air wheel component, and the known method is to arrange a movable part at an air inlet to control the aperture of the air inlet. By adopting the mode, the pneumatic rolling brush cannot realize automatic adjustment of the rotating speed of the rolling brush under different working environments, and needs manual adjustment. In addition, under different operational environments, if the rolling brush still works at the set rotating speed, certain noise is generated, and the user experience is not good.

Disclosure of Invention

In order to solve the problems, the invention provides a floor brush which comprises a shell, a rolling brush and a wind wheel component, wherein the rolling brush and the wind wheel component are arranged in the shell; the wind wheel assembly comprises a rotating shaft and a wind wheel body arranged on the rotating shaft, the speed reduction device is associated with the wind wheel assembly to limit the rotating speed of the wind wheel assembly, the speed reduction device comprises a moving part which is associated with the rotating shaft of the wind wheel assembly and can rotate along with the wind wheel assembly, and a static part which is arranged on the radial outer part of the moving part and is arranged at an interval relative to the moving part, and the moving part is provided with a braking part which is acted by a rotating centrifugal force and can be contacted with the static part and generate sliding friction. Through setting up in the speed reduction part that the wind wheel subassembly rotated the relevance, can realize the automatic control round brush rotational speed when cleaning different object surfaces to improve the noise that scrubbing brush during operation produced.

In one possible embodiment, the stationary part is arranged around the moving part at the periphery of the moving part. Therefore, the force is uniformly applied when the static part and the moving part generate sliding friction, the rotating speed of the rolling brush is kept continuous, and the phenomenon of blocking cannot occur.

In one possible embodiment, the moving part further comprises a fixed end, a free end and a connecting part for connecting the fixed end and the free end; wherein, stiff end and pivot fixed connection, when the pivot rotated, the direction motion at keeping away from the pivot center can be followed to the free end, the brake part is located on the free end. Therefore, one end of the moving part is fixed with the rotating shaft and is driven by the rotating shaft to rotate, and meanwhile, the other end and the free end can generate sliding friction with the static part under the action of rotating centrifugal force, so that the rotating speed of the rolling brush can be automatically controlled.

In one possible embodiment, the fixing end and the connecting portion are integrally formed; or the fixed end, the connecting portion and the free end are integrally formed. Therefore, the assembly process can be reduced, the movable part is fixed by means of specific material and shape design, and the free part connected by the connecting part is displaced under the action of centrifugal force.

In one possible embodiment, the fixed end, the connecting portion and the free end are made of POM plastic. The material has high strength and rigidity, good elasticity and good abrasion resistance, meets the requirement of wear resistance of the free end on one hand, and meets the requirement of elasticity and rigidity of the connecting part at the same time.

In a possible embodiment, the connection has a reduced cross section. This makes it possible to simultaneously connect the fixed part and the displaceable free end.

In a possible embodiment, the deceleration device comprises at least two moving parts, and the two moving parts are evenly distributed around the rotating shaft. The uniform stress in the circumferential direction can be realized, and the uniform rotating speed of the rolling brush is controlled.

In one possible embodiment, the wind wheel assembly further comprises a wind wheel housing comprising a first chamber and a second chamber, wherein the wind wheel body and the reduction means are arranged in said first chamber and said second chamber, respectively. Through setting up wind wheel body and decelerator in the cavity of difference, reduce the dust entering second cavity in the cavity of wind wheel body place, reduce the influence to decelerator.

In one possible embodiment, the stationary part is fixedly arranged on the inner wall of the second chamber in which the stationary part is arranged.

In one possible embodiment, a first barrier is provided between the first and second chambers to isolate the two chambers.

In one possible embodiment, the floor brush further comprises a second blocking portion; the first blocking part is arranged on the inner wall of the wind wheel cover, the second blocking part is arranged on the rotating shaft, and the inner circumferential edge of the first blocking part is tightly attached to the outer circumferential edge of the second blocking part.

In one possible embodiment, the stationary part is an annular metal piece.

In one possible embodiment, the free end or brake portion has a rounded outer periphery.

In a possible embodiment, the rotor body is arranged coaxially with the reduction means.

A cleaning device comprises the floor brush.

Drawings

FIG. 1 is a perspective view of a ground brush construction in an embodiment of the present invention;

FIG. 2 is a schematic illustration of the wind wheel assembly and reduction gear of FIG. 1 in an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the structure of the part of FIG. 2;

FIG. 4 is an exploded view of the components illustrated in FIG. 2;

fig. 5 is an axial plan view of the reduction gear.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. However, these embodiments do not limit the present invention, and structural or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

Fig. 1 shows a floor brush comprising a housing, a roller brush 10, a wind wheel assembly 20 and a transmission assembly 40 arranged in the housing. The basic working principle of the floor brush is that an air inlet is arranged at the bottom of the shell, and when the floor brush works, air enters the air wheel assembly 20 from the air inlet to drive the blades of the air wheel assembly 20 to rotate, so that the rolling brush 10 is driven to rotate through the transmission assembly 40.

Referring to fig. 1-4, the wind wheel assembly 20 includes a rotor shaft 202 and a wind wheel body 201 disposed on the rotor shaft 202. In one embodiment, rotor body 201 may include a left rotor and a right rotor, which may be disposed opposite to shaft 202.

The floor brush further comprises a speed reduction device 30, wherein the speed reduction device 30 may be associated with the wind wheel assembly 20 to limit the rotational speed of the wind wheel assembly 20.

In one embodiment, the speed reducer 30 may include a moving portion 301 associated with the rotating shaft 202 of the wind wheel assembly 20 so as to be rotatable with the wind wheel assembly 20.

In one embodiment, the above-mentioned association may be that the speed reduction device 30 is arranged coaxially with the rotor body 201 of the wind wheel assembly 20, i.e. on the rotation shaft 202. Thus, the reduction means 30 can be associated with the wind wheel assembly 20 and the rotating shaft.

In one embodiment, the speed reduction device 30 may be disposed on at least one side of the wind rotor body 201.

The reduction gear 30 may be associated with the wind wheel assembly 20 through other connection structures so as to rotate the moving portion 301 with the wind wheel assembly 20.

The reduction gear 30 further includes a stationary portion 302 provided radially outside the moving portion 301 and spaced apart from the moving portion 301, and the moving portion 301 has a brake portion 303 that is brought into contact with the stationary portion 302 by a centrifugal force of rotation and generates sliding friction. Frictional deceleration is achieved by the interaction of the stationary portion 302 and the brake portion 303.

In one embodiment, the stationary portion 302 may be disposed at the outer circumference of the moving portion 301 around the moving portion 301. For example, the stationary portion 302 may be a cylinder having an inner surface; alternatively, the shaft 202 may be an annular body centered on the shaft, or may be an annular metal member. The annular component can enable each contact surface of the static part and the moving part to be in contact and generate sliding friction, the moving part is stressed uniformly, so that the acting force of the speed reducer on the wind wheel assembly can be accurately controlled, and the driving speed of the wind wheel assembly on the rolling brush can be accurately controlled. The stationary portion 302 may be a plurality of members provided on the outer periphery of the moving portion, and may not have a continuous circumference.

The stationary portion 302 should be made of a wear-resistant and heat-resistant material, so that the stationary portion can be used for a long time and maintain its performance stability during repeated friction between the stationary portion and the brake portion.

In one embodiment, the speed reducer 30 may include a plurality of moving parts 301, and the plurality of moving parts 301 are uniformly distributed around the rotating shaft 202. For example, the reduction gear 30 includes two moving parts 301, and the two moving parts 301 may be symmetrically distributed around the center of the rotation axis, as shown in fig. 5.

Referring to fig. 5, in one embodiment, the moving part 301 may further include a fixed end 3011, a free end 3012, and a connection part 3013 connecting the two; wherein, the fixed end 3011 is fixedly connected with the rotating shaft 202; when the shaft 202 rotates, the free end 3012 can move in a direction away from the center of the shaft 202, thereby being displaced to facilitate contact with the stationary portion 302.

In one embodiment, the free end 3012 can move radially in a plane that is perpendicular to the axis of rotation 202 or at an oblique angle to the axis of rotation 202.

In one embodiment, when the free end 3012 is displaced in the radial direction, the connecting portion 3013 and the fixing portion 3011 may also undergo a displacement change to a certain extent, which is relatively small with respect to the displacement change of the moving portion 301, depending on the material, mass, shape, etc. of the connecting portion 3013 and the fixing portion 3011.

In one embodiment, the fixed end 3011 and the connecting portion 3013 may be integrally formed; or the fixed end 3011, the connecting portion 3013, and the free end 3012 may be integrally formed. The fixed end 3011, the connecting portion 3013 and the free end 3012 may be made of the same material, for example, polyoxymethylene POM plastic. The material has high strength, high rigidity, high elasticity and high wear resistance.

In one embodiment, the connecting portion 3013 may have a smaller cross section, so that the connecting portion 3013 is deformed during the displacement of the free end 3012, and the deformation is easier to occur. In particular, when the fixed end 3011, the connection portion 3013, and the free end 3012 are integrally formed of the same material, the connection portion 3013 having a reduced cross section can be displaced along with the displacement of the free end, and the connection portion brings the free end back to the original position after the centrifugal force of the free end is reduced or decreased. While enhancing the durability of the connection.

In one embodiment, the connection portion 3013 may be an elastic body, and when the free end 3012 is subjected to centrifugal force, a force is generated on the connection portion 3013, and the force includes at least the centrifugal force generated by rotation and a pulling force of the free end 3012 on the connection portion 3013. When the rotation speed of the shaft 202 is reduced or stops rotating, the connection portion 3013 can restore the deformation and can return the free end 3012 to the original position.

In one embodiment, the brake 303 may be located on the free end 3012. For example, the brake 303 may be disposed radially outward of the free end 3012, and when the free end 3012 is displaced, the brake 303 is moved closer to the stationary portion 302 and generates sliding friction.

The brake 303 may be disposed at the outer periphery of the free end 3012, and the brake 303 and the free end 3012 may be the same component. In one embodiment, the brake 303 or free end 3012 may have a rounded outer perimeter.

In one embodiment, referring to fig. 5, when two moving portions are uniformly disposed in the reduction gear 30, the fixed end 3011, the connection portion 3013, and the free end 3012 may be respectively distributed in a central symmetry. The free end 3012 may have an outer circumference in the shape of a circular arc parallel to the annular stationary portion 302.

Referring to fig. 3 and 4, the wind wheel assembly 20 further includes a wind wheel housing 203, and the wind wheel housing 203 may include a first cavity 2031 and a second cavity 2032, wherein the wind wheel body 201 and the reduction device 30 are disposed in the first cavity 2031 and the second cavity 2032, respectively.

In one embodiment, a first barrier 501 is disposed between the first cavity 2031 and the second cavity 2032 to isolate the two cavities. The first blocking portion 501 may be integrally formed with the wind wheel housing 203; in one embodiment, the first blocking portion 501 may be connected with the rotation shaft 202.

In one embodiment, a first stop 501 and a second stop 502 may be provided between the first cavity 2031 and the second cavity 2032; the first blocking part 501 is arranged on the inner wall of the wind wheel cover 203 and can be integrally manufactured with the wind wheel cover 203; the second blocking portion 502 is disposed on the rotating shaft 202, and an inner circumferential edge of the first blocking portion 501 is closely attached to an outer circumferential edge of the second blocking portion 502.

In one embodiment, the stationary portion 302 is fixedly disposed on the inner wall of the second chamber 2032 in which it is located. The stationary portion 302 and the second cavity 2032 may have the same width in the axial direction, so that the stationary portion 302 may be fixed by the first stopper 501 and the cover body at the other side of the second cavity 2032. The stationary portion 302 may be fixed to the inner wall of the turbine housing or the second cavity 2032 by other fixing means, which are not limited herein.

The embodiment of the invention also discloses cleaning equipment with the floor brush, which can be a vertical dust collector, a handheld dust collector, a horizontal dust collector, a dry-wet dual-purpose dust collector and the like. The cleaning device can drive the rolling brush to work through the pneumatic component.

Based on the floor brush and the cleaning device having the floor brush as described above, the specific operation of the cleaning device will be described below.

Generally, when a certain amount of wind is sucked through the wind inlet at the bottom of the floor brush, the wind wheel body 201 is subjected to the wind force and drives the rolling brush 10 to rotate at a preset rotation speed. When the cleaning device cleans surfaces made of different materials, the actual rotation speed of the rolling brush 10 is lower than the preset rotation speed due to different degrees of friction force applied to the rolling brush 10.

When the cleaning device is operated on the floor, the wind wheel assembly 20 drives the rolling brush 10 to rotate, and usually the rolling brush 10 rotates at a first rolling brush rotating speed, for example, 5000 revolutions per minute; during the rotation, the speed reducer 30 rotates along with the rotating shaft, and the moving part 301 of the speed reducer 30 is away from the center of the rotating shaft 202 under the action of the rotating centrifugal force, contacts with the static part 302 and moves circularly along the static part 301; in this process, the moving portion 301 receives frictional resistance while blocking the rotation of the rotating shaft 202, thereby reducing the rotation speed of the roll brush 10 to 1800 rpm, for example.

When the cleaning device is working on a carpet, the wind wheel assembly 20 drives the roller brush 10 to rotate, and the roller brush 10 will normally rotate at a second roller brush speed, for example 2000 rpm; during the rotation, the speed reducer 30 rotates along with the rotating shaft 202, and the moving part 301 of the speed reducer 30 is away from the center of the rotating shaft under the action of the rotating centrifugal force, contacts with the static part 302 and moves circularly along with the static part 302; in this process, the moving portion 301 receives frictional resistance while blocking the rotation of the rotating shaft 202, thereby reducing the rotation speed of the roll brush 10 to 1800 rpm, for example.

While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.