CN115413964B

CN115413964B - Cleaning device

Info

Publication number: CN115413964B
Application number: CN202211228730.8A
Authority: CN
Inventors: 吴俊宽; 束文龙; 薛颂恒; 王崑竹; 许又中; 余俊莹; 杨秉紘; 邱泓达; 王于诚
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2021-12-22
Filing date: 2022-10-09
Publication date: 2023-11-03
Anticipated expiration: 2042-10-09
Also published as: CN115413964A

Abstract

A cleaning device comprises a brush, a guide bar and a driving unit. The brush comprises a brush body and a plurality of rows of brush hair, and the plurality of rows of brush hair are arranged on the brush body along the circumferential direction of the brush body; the guide strip is arranged on one side of the brush to provide a guide path; the driving unit drives the hairbrush to rotate. With respect to the reference surface, the end of one of the rows of bristles that is located closest to the reference surface is closer to the reference surface than the end of the guide strip. When the cleaning device is supported on the supporting surface and the brush is driven by the driving unit to rotate, the plurality of rows of brush hairs are sequentially contacted with the supporting surface to deform to provide elastic force, and the elastic force enables foreign matters on the supporting surface to be cleaned to the collecting space through the guide path.

Description

Cleaning device

Technical Field

The present invention relates to a cleaning device; more particularly, the present invention relates to a cleaning device that effectively cleans debris.

Background

The conventional display panel manufacturing process involves glass cutting in a clean room, thereby causing many glass fragments on the floor of the clean room, which is often cleaned with a clean cloth or a cleaner. However, the current common dust collector or sweeper has limited sweeping effect on the flat objects, and fragments are easy to block the sweeper, so that the dust collector needs to be used as an aid, and the dust collector is not suitable for sweeping the flat objects. Furthermore, because the dust collector or the floor sweeping machine needs to suck air and exhaust air, turbulent flow is easy to be caused, and the environmental maintenance of the clean room is not facilitated.

Disclosure of Invention

An object of the present invention is to provide a cleaning device for cleaning debris, which simplifies the manner of cleaning the ground debris, improves the cleaning efficiency, and can avoid causing turbulence and effectively clean the ground debris.

In one embodiment, the cleaning device of the present invention comprises a brush, a guide bar and a driving unit, wherein the brush comprises a brush body and a plurality of rows of bristles, and the plurality of rows of bristles are arranged on the brush body along the circumferential direction of the brush body; the guide strip is arranged on one side of the brush to provide a guide path; the driving unit drives the brush to rotate, wherein the tail end of one row of bristles, which is positioned closest to the reference surface, of the plurality of rows of bristles is closer to the reference surface than the tail end of the guide strip; when the cleaning device is supported on the supporting surface and the brush is driven by the driving unit to rotate, the plurality of rows of brush hairs are sequentially contacted with the supporting surface to deform to provide elastic force, and the elastic force enables foreign matters on the supporting surface to be cleaned to the collecting space through the guide path.

In one embodiment, the plurality of rows of bristles are each formed by a plurality of bristle arrangements, and the plurality of rows of bristles are each disposed diagonally with respect to a central axis of the brush body, such that the plurality of rows of bristles are disposed in a spiral on the brush body.

In one embodiment, the ratio of the bristle width of each bristle in the radial direction of the brush body to the brush wheel diameter of the brush is 1:50 to 4:50.

In one embodiment, the distance between the bristles in the same row is 0-2 times the width of the bristles along the central axis of the brush body.

In one embodiment, the rows of bristles have an arrangement pitch on the brush body that is 0-2 times the width of the bristles in the radial direction of the brush body.

In one embodiment, the plurality of rows of bristles each comprise a first sub-row of bristles and a second sub-row of bristles, wherein the first sub-row of bristles is arranged in a spiral from a first end of the brush body about a central axis of the brush body toward the center of the brush body, and the second sub-row of bristles is arranged in a spiral from a second end of the brush body opposite the first end about the central axis of the brush body toward the center of the brush body to abut the first sub-row of bristles.

In an embodiment, the arrangement direction of the bristles in the first sub-row and the bristles in the second sub-row respectively form a first included angle and a second included angle with the central axis of the brush body, and the first included angle and the second included angle are respectively greater than or equal to 5 degrees and less than or equal to 10 degrees.

In an embodiment, the first and second sub-rows of bristles and the central axis of the brush body form a virtual triangle, an inner angle between the first and second sub-rows of bristles is greater than or equal to 160 degrees and less than or equal to 170 degrees, and a rotation direction of the brush is in the same direction as an opening direction of the inner angle.

In an embodiment, when the cleaning device is supported on the supporting surface, a horizontal distance (Dh) is provided between the projection of the central axis of the brush body on the supporting surface and the end of the guiding strip, and the horizontal distance (Dh) meets the following relationship:wherein R is the distance from the central axis to the end of the bristle, and h is the distance from the central axis to the supporting surface.

In an embodiment, when the cleaning device is supported on the supporting surface, the guide bar has an included angle with the supporting surface, and the included angle is greater than or equal to 5 degrees and less than or equal to 60 degrees.

In one embodiment, the stiffness of the guide bar is greater than the stiffness of the bristles.

In one embodiment, the guide strips are rubber strips and the bristles are silica gel bristles.

In one embodiment, the cleaning device of the present invention further comprises a wheel for supporting the cleaning device on the supporting surface, wherein the end of the guide bar is closer to the reference surface than the bottom end of the wheel.

In one embodiment, the collection space is a space surrounded by a collection box or a collection bag.

Compared with the prior art, the cleaning device provided by the invention has the advantages that the brush capable of adhering fragments through electrostatic action is used, the fragments are sprung into the collecting space by utilizing the elasticity generated by deformation of the brush hair, the cleaning mode is effectively simplified, and an air suction/exhaust device is not required, so that turbulent flow can be avoided.

Drawings

Fig. 1 is a schematic perspective view of a cleaning device according to an embodiment of the invention.

Fig. 2 is a schematic side view of the cleaning device of fig. 1.

Fig. 3 is a schematic view of a brush according to an embodiment of the present invention.

Fig. 4 is a schematic view of a row of bristles of the brush of fig. 3.

FIG. 5 is a schematic diagram showing the positional relationship between a brush and a guide bar according to an embodiment of the present invention.

Fig. 6 and fig. 7 are schematic views of a guide bar according to an embodiment of the invention relative to a reference surface and a supporting surface, respectively.

Fig. 8 and 9 are a perspective view and a cross-sectional view of a brush according to another embodiment of the present invention.

Fig. 10 to 12 are schematic views of cleaning operations of brushes according to various embodiments of the present invention.

Fig. 13 is a schematic diagram of the cleaning device of the present invention applied to another electronic device.

The reference numerals are as follows:

10. cleaning device

20. Foreign matter

30. Electronic device

110. 110' brush

110a first subcolumn bristles

110b second subcolumn bristles

112. Brushing hair

112a end

114. Brush body

120. Guide bar

122. Terminal end

130. Driving unit

132. Motor with a motor housing

134. Gear set

134a first gear

134b second gear

134c third gear

140. Collecting space

150. Wheel

160. Frame

C central axis

D hairbrush wheel diameter

DE1, DE2 alignment direction

Dc bristle width

Dg arrangement pitch

Dh horizontal distance

Dr bristle width

d1, d2, d3 distance

GP guide route

Gr distance

h distance

Pr reference plane

Ps supporting surface

R distance

R1 first direction of rotation

R2 second rotation direction

R3 third rotation direction

θ1 first included angle

A second included angle theta 2

Theta 3 inner angle

Alpha included angle

Detailed Description

In the drawings, the thickness of layers, films, panels, regions, etc. are exaggerated for clarity. Like numbers refer to like elements throughout. It will be understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" may refer to physical and/or electrical connection. Furthermore, "electrically connected" or "coupled" may mean that there are other elements between the elements.

It will be understood that, although the terms "first," "second," "third," etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a "first element," "component," "region," "layer" or "section" discussed below could be termed a second element, component, region, layer, or section without departing from the teachings herein.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well as "at least one" unless the context clearly indicates otherwise. "or" means "and/or". As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, regions, integers, steps, operations, elements, components, and/or groups thereof.

Moreover, relative terms such as "lower" or "bottom" and "upper" or "top" may be used herein to describe one element's relationship to another element as illustrated. It will be understood that relative terms are intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in one of the figures is turned over, elements described as being on the "lower" side of other elements would then be oriented on the "upper" side of the other elements. Thus, the exemplary term "lower" may include both "lower" and "upper" orientations, depending on the particular orientation of the figure. Similarly, if the device in one of the figures is turned over, elements described as "below" or "beneath" other elements would then be oriented "above" the other elements. Thus, the exemplary terms "below" or "beneath" can encompass both an orientation of above and below.

As used herein, "about," "approximately," or "substantially" includes both the values and average values within an acceptable deviation of the particular values as determined by one of ordinary skill in the art, taking into account the particular number of measurements and errors associated with the measurements in question (i.e., limitations of the measurement system). For example, "about" may mean within one or more standard deviations of the values, or within ±30%, ±20%, ±10%, ±5%. Further, as used herein, "about," "approximately," or "substantially" may be used to select a more acceptable range of deviations or standard deviations depending on the optical, etching, or other properties, and may not be used with one standard deviation for all properties.

Unless defined otherwise, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present invention and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Exemplary embodiments are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments. Accordingly, variations in the shape of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, the embodiments described herein should not be construed as limited to the particular shapes of regions as illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, an area shown or described as being flat may generally have rough and/or nonlinear features. Furthermore, the acute angles shown may be rounded. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the precise shape of a region and are not intended to limit the scope of the claims.

The invention provides a cleaning device. The cleaning device of the present invention can be applied to cleaning of foreign matters such as hair, dust, cotton wool, glass, metal, etc., and is preferably applied to cleaning of flat articles such as glass chips or gaskets in a clean room, but is not limited thereto. The details of the cleaning device of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, fig. 1 and 2 are a schematic perspective view and a schematic side view of a cleaning device 10 according to an embodiment of the invention. As shown in fig. 1 and 2, the cleaning device 10 includes a brush 110, a guide bar 120, and a driving unit 130. The brush 110 includes a brush body 114 and a plurality of rows of bristles 112. The plurality of rows of bristles 112 are disposed on the brush body 114 in a circumferential direction of the brush body 114. The guide bar 120 is disposed at one side of the brush 110 to provide a guide path GP. The driving unit 130 drives the brush 110 to rotate. With respect to the reference surface Pr, the end 112a of one row of bristles 112 closest to the reference surface Pr among the rows of bristles 112 is closer to the reference surface Pr than the end 122 of the guide bar 120. When the cleaning device 10 is supported on the supporting surface Ps and the brush 110 is rotated by the driving unit 130, the plurality of rows of bristles 112 sequentially contact the supporting surface Ps to be deformed to provide an elastic force that causes the foreign objects 20 on the supporting surface Ps to be cleaned to the collecting space 140 through the guide path GP (see the implementation of fig. 10 to 12).

Furthermore, in one embodiment, the cleaning device 10 may further include wheels 150 and a frame 160 to facilitate the operation and installation of the cleaning device 10. The wheels 150 may be used to support the cleaning device 10 on the support surface Ps to enhance the mobility of the cleaning device 10. The frame 160 serves to integrate/support the respective components of the cleaning device 10, such as the brush 110, the guide bar 120, the driving unit 130, the wheels 150, and the collecting space 140, etc., which may be respectively mounted to the corresponding positions of the frame 160, so that the cleaning device 10 has an integrated external appearance. In this embodiment, the wheels 150 and the brush 110 are preferably disposed on opposite sides of the direction of movement of the cleaning device 10, respectively, and the guide bar 120 is located between the wheels 150 and the brush 110 and adjacent to the brush 110. The collection space 140 may be a space surrounded by a collection box or a collection bag, and is preferably located at the other side of the guide bar 120 with respect to the brush 110, i.e., between the guide bar 120 and the wheels 150. From another point of view, the brush 110, the guide bar 120, the collection space 140 and the wheels 150 are sequentially arranged along the moving direction of the cleaning device 10, and the opening of the collection space 140 preferably corresponds to the upper end of the guide bar 120, such that the guide path GP provided by the guide bar 120 communicates with the collection space 140.

The drive unit 130 includes a motor 132 and a gear set 134. The motor 132 provides power to drive the brush 110 to rotate. The gear set 134 is coupled between the motor 132 and the brush 110 to transmit the power provided by the motor 132 to the brush 110. For example, in this embodiment, the gear set 134 includes three gears (e.g. 134a, 134b, 134 c) meshed with each other, wherein the first gear 134a is connected with the transmission shaft of the motor 132, the third gear 134c is connected with the brush body 13 of the brush 110, and the second gear 134b is coupled with the first gear 134a and the third gear 134b, respectively. When the motor 132 is operated, the first gear 134a is driven to rotate in a first rotation direction R1 (e.g. counterclockwise), and the rotation of the first gear 134a drives the second gear 134b to rotate in a second rotation direction R2 (e.g. clockwise), the rotation of the second gear 134b further drives the third gear 134c to rotate in a third rotation direction R3 (e.g. counterclockwise), and the rotation 134c of the third gear drives the brush 110 to rotate together in the third rotation direction R3. It should be noted that the number of gears of the gear set 134 may vary according to practical applications, and is not limited to three gears in the embodiment shown. Furthermore, according to practical applications, the driving unit 130 may include only the motor 132, such that a transmission shaft of the motor 132 is directly coupled to the brush body 114 to drive the brush 110 to rotate, without transmitting power of the motor 132 through the gear set 134.

In this embodiment, the reference surface Pr may be a tangential surface of the bottom end of the brush 110, or a plane located below the bottom end of the brush 110 and parallel to the tangential surface of the bottom end of the brush 110. The reference plane Pr may be a virtual plane or a physical plane. When the cleaning device 10 is provided with the wheel 150, the reference surface Pr is preferably also parallel to the tangential plane of the bottom end of the wheel 150. As shown in fig. 2, when the brush 110, the guide bar 120 and the wheel 150 are disposed on the frame 160 of the cleaning device 10, the distal end 112a of the row of bristles 112 located closest to the reference surface Pr is closer to the reference surface Pr than the distal end 122 of the guide bar 120 is to the reference surface Pr than the bottom end of the wheel 150 is to the distal end 122 of the guide bar 120 is. Specifically, when the brush 112 of the brush 110 is rotated to the lowest position (i.e., a position having a minimum distance between the end 112a of the brush 112 and the reference surface Pr or a position having the long axis direction of the brush 112 substantially parallel to the normal direction of the reference surface Pr) in the natural state (i.e., unpressed or deformed) of the respective components of the cleaning device 10, the end 112a of the brush 112 has a distance d1 from the reference surface Pr, the end 122 of the guide bar 120 has a distance d2 from the reference surface Pr, and the bottom end of the wheel 150 has a distance d3 from the reference surface Pr, wherein the distance d1 is smaller than the distance d2, and the distance d2 is smaller than the distance d3, i.e., d1< d2< d3. From another point of view, the reference surface Pr may be a virtual plane tangential to the bottom end of the wheel 150 (i.e., a tangent plane to the bottom end of the wheel 150). When the brush 110 has a row of bristles 112 having the long axis direction of the bristles 112 substantially parallel to the normal direction of the reference surface Pr, the end 112a of the row of bristles 112 and the end 122 of the guide bar 120 are both downward beyond the reference surface Pr, and the end 112a of the row of bristles 112 is further downward beyond the end 122 of the guide bar 120.

The support surface Ps may be a plane on which the foreign matter is located or a plane on which the cleaning device 10 is placed, such as a floor or a table top. The bristles 112 and the guide bars 120 of the brush 110 are preferably made of a flexible material, more preferably an insulating material having flexibility, with respect to the support surface Ps. When the cleaning device 10 is supported by the wheel 150 on the supporting surface Ps, the bottom end of the wheel 150 contacts the supporting surface Ps, and since the brush 110, the guide bar 120 and the wheel 150 have the above-mentioned configuration relationship with d1< d2< d3 relative to the reference surface Pr, the bristles 112 of the brush 110 will elastically deform when rotating to contact the supporting surface Ps to provide an elastic restoring force (i.e. elastic force), and the guide bar 120 will slightly deform when contacting the supporting surface Ps to promote the contact between the end 122 of the guide bar 120 and the supporting surface Ps, thereby providing a stable guiding path GP. In one embodiment, the stiffness of the guide bar 120 is preferably greater than the stiffness of the bristles 112. For example, the bristles 112 of the brush 110 are preferably silica gel bristles, and the guide bar 120 is preferably a rubber bar, but not limited thereto.

Referring to fig. 3 and 4, the brush body 114 of the brush 110 may be a column or a cylinder, and the brush body 114 preferably has a circular cross section, but is not limited thereto. The brush body 114 may have a cross-section of any convenient shape, depending on the application. In this embodiment, the plurality of rows of bristles 112 are each formed by arranging a plurality of bristles 112, and the plurality of rows of bristles 112 are each disposed obliquely with respect to the central axis C of the brush body 114, such that the plurality of rows of bristles 112 are disposed in a spiral on the brush body 114. Specifically, the rows of bristles 112 are disposed along the circumferential direction of the brush body 114 in an inclined manner, such that the arrangement direction (e.g., DE 1) of the rows of bristles 112 preferably has a non-zero included angle with respect to the central axis C of the brush body 114 and is spiral, but not limited thereto. In other embodiments, the arrangement direction of the rows of bristles 112 may be substantially parallel to the central axis C of the brush body 114. In this embodiment, each bristle 112 is preferably cylindrical, and each bristle 112 preferably extends radially outward from the surface of the brush body 114 along the brush body 114, such that the long axis direction of the bristle 112 is substantially parallel to the radial direction of the brush body 114, but not limited thereto. Depending on the application, the bristles 112 may be cylinders having any convenient geometry and may extend outwardly from the surface of the brush body 114 in any convenient direction. In this embodiment, the plurality of bristles 112 in each row of bristles 112 preferably have the same shape and size (e.g., diameter and length), and the plurality of rows of bristles 112 have the same number, shape and size of bristles, but are not limited thereto. The number, shape, and size of the bristles 112 in each column may be the same or different depending on the application.

In one embodiment, the distance Gr between the bristles 112 in the same row is preferably 0-2 times the bristle width Dc along the central axis C of the brush body 114. For example, the bristles 112 of the same row may be closely adjacent to each other in the direction of the central axis C of the brush body 114 such that the distance Gr between the bristles 112 of the same row is substantially zero, thereby preventing foreign matter from penetrating through gaps between the bristles 112 of the same row to avoid leakage. When the same row of bristles 112 has a spacing therebetween (i.e., the distance Gr is greater than zero), the friction between the bristles 112 and the support surface Ps can be effectively reduced. However, the larger the distance Gr, the greater the chance that the foreign matter will penetrate through the gaps between the adjacent bristles 112, so the distance Gr between the bristles 112 in the same row is preferably less than or equal to the width of 2 bristles 112 in the direction of the central axis C (i.e., the bristle width Dc), but is not limited thereto. When the bristles 112 are cylindrical, the bristle width Dc is the diameter of the individual bristles 112.

Furthermore, in one embodiment, as shown in FIG. 4 (which only illustrates a single row of bristles 112), the plurality of rows of bristles 112 each include a first sub-row of bristles 110a and a second sub-row of bristles 110b. The first sub-row of bristles 110a is preferably arranged in a spiral manner about the central axis C of the brush body 114 toward the center of the brush body 114 from a first end (e.g., left end) of the brush body 114, and the second sub-row of bristles 110b is preferably arranged in a spiral manner about the central axis C of the brush body 114 toward the center of the brush body 114 from a second end (e.g., right end) of the brush body 114 opposite the first end, so as to be contiguous with the first sub-row of bristles 110 a. Specifically, when the plurality of bristles 112 of each row are arranged in a spiral manner around the center axis C of the brush body 114 from one end of the brush body 114 to a center position of the brush body 114 in the direction of the center axis C (i.e., approximately 1/2 the length position of the brush body 114 in the direction of the center axis C), it is preferable that the plurality of bristles 112 of each row are arranged in a reverse spiral manner from the center position of the brush body 114 toward the other end of the brush body 114 so that the bristles 112 of each row have an inwardly concentrated arrangement.

As shown in fig. 4, the first and second sub-rows of bristles 110a and 110b form a virtual triangle with the central axis C of the brush body 114. Specifically, the arrangement direction DE1 of the first sub-row of bristles 110a and the arrangement direction DE2 of the second sub-row of bristles 110b form a virtual triangle with the central axis C of the brush body 114, such that the arrangement directions DE1, DE2 of the first sub-row of bristles 110a and the second sub-row of bristles 110b respectively form a first included angle θ1 and a second included angle θ2 with the central axis C of the brush body 114, and the first included angle θ1 and the second included angle θ2 are preferably greater than or equal to 5 degrees and less than or equal to 10 degrees (i.e., 5 ° - θ1-10 °,5 ° - θ2-10 °). In this embodiment, the first included angle θ1 and the second included angle θ2 are substantially the same, so that the virtual triangle formed above is an isosceles triangle, but not limited thereto. In other embodiments, the first included angle θ1 and the second included angle θ2 may be different, so that the virtual triangle formed above is a non-isosceles triangle. Furthermore, the first included angle θ1 and the second included angle θ2 of the plurality of rows of bristles 112 may be the same or different, respectively, according to practical applications. For example, when the first included angle θ1 of the plurality of rows of bristles 112 is the same, the arrangement direction DE1 of the first sub-row of bristles 110a of the plurality of rows is substantially parallel. When the second included angle θ2 of the plurality of rows of bristles 112 is the same, the arrangement direction DE2 of the second sub-row of bristles 110b of the plurality of rows is substantially parallel.

From another point of view, in the above-described virtual triangle, the inner angle θ3 between the first sub-row of bristles 110a and the second sub-row of bristles 110b is preferably 160 degrees or more and 170 degrees or less (160 ° - θ1-170 °). When the first included angle θ1 and the second included angle θ2 are 0 degrees, that is, the arrangement directions DE1 and DE2 of the first sub-row of bristles 110a and the second sub-row of bristles 110b of the same row of bristles 112 are overlapped and parallel to the central axis C of the brush body 114, the foreign matters are more likely to fly towards the outer side of the brush during the operation of the cleaning device 10. However, when the first and second angles θ1 and θ2 are too large (i.e., the internal angle θ3 is too small), the foreign matters tend to be excessively concentrated toward the center of the brush 110, decreasing the cleaning efficiency. Accordingly, in each row of bristles 112, the first included angle θ1 and the second included angle θ2 are each preferably greater than or equal to 5 degrees and less than or equal to 10 degrees. In this embodiment, the rotation direction (i.e., the third rotation direction R3) of the brush 110 is preferably the same as the opening direction of the inner angle θ3, i.e., the third rotation direction R3 is directed from the inner angle θ3 to the central axis C. Thus, when the brush 110 rotates in a rotation direction (e.g., R3), the foreign matter can be concentrated inward, preventing the foreign matter from bouncing outward.

As the bristles 112 become thinner, the smaller the elastic force provided by the bristles 112 due to deformation, so that the smaller the foreign matter that the bristles 112 can drive. As the bristles 112 become thicker, the greater the spring force provided by the bristles 112 due to deformation, but the power provided by the motor 132 must also be relatively increased. In one embodiment, as shown in FIG. 5, the ratio of the bristle width Dr of each bristle 112 along the radial direction of the brush body 114 to the brush diameter D of the brush 110 is preferably 1:50 to 4:50. The brush wheel diameter D may be defined as the maximum width of the brush 110 in the radial direction of the brush body 114, i.e., the sum of the width (or diameter) of the brush body 114 and the length of two bristles 112 on opposite sides in the radial direction of the brush body 114. When the bristles 112 are cylindrical, the width of the bristles 112 in the radial direction of the brush body 114 is equal to the width of the bristles 112 in the direction of the central axis C of the brush body 114 (i.e., bristle width dc=bristle width dr=bristle diameter). Furthermore, when the plurality of rows of bristles 112 are closely arranged in the circumferential direction of the brush body 114, the adhesion of the bristles 112 to foreign matter can be improved. When the plurality of rows of bristles 112 are not closely arranged in the circumferential direction of the brush body 114, it is advantageous to clean foreign matters having a large size and reduce resistance with the supporting surface Ps. In one embodiment, as shown in fig. 5, the rows of bristles 112 have an arrangement distance Dg in the circumferential direction of the brush body 114, and the arrangement distance Dg is preferably 0-2 times the bristle width Dr along the radial direction of the brush body 114, but is not limited thereto.

As shown in fig. 5, in one embodiment, when the cleaning device 10 is supported on the supporting surface Ps, the central axis C of the brush body 114 has a horizontal distance (Dh) between the projection of the supporting surface Ps and the end 122 of the guiding strip 120, and the horizontal distance (Dh) preferably conforms to the following relationship:where R is the distance from the central axis C to the end 112a of the bristles 112 (e.g., the sum of the radius of the brush body 114 and the length of one bristle 112, or 1/2 of the diameter D of the brush wheel), and h is the distance from the central axis C to the support surface Ps. In other words, when the guiding strip 120 is disposed at the side of the brush 110, the relative positions of the guiding strip 120 and the brush 110 preferably conform to the above relation.

Referring to fig. 6 and 7, fig. 6 and 7 are schematic views of the guide bar 120 according to an embodiment of the invention with respect to the reference surface Pr and the supporting surface Ps. As shown in fig. 6, the guide bar 120 is disposed obliquely with respect to the reference surface Pr. As shown in fig. 7, when the cleaning device 10 is supported on the support surface Ps, the guide bar 120 forms an angle α with the support surface Ps. Specifically, in a state in which the cleaning apparatus 10 is supported on the support surface Ps, the tip 122 of the guide bar 120 contacts the support surface Ps and is slightly deformed, such that the angle α between the guide bar 120 and the support surface Ps is smaller than the inclination angle of the guide bar 120 with respect to the reference surface Pr, and a ramp-type guide path GP is provided. During the moving operation of the cleaning device 10, the end 122 of the guide bar 120 is subjected to friction force to generate moment, and when the included angle α between the guide bar 120 and the supporting surface Ps is larger, the moment is larger, which may cause the guide bar 120 to bend and fail to stably provide the guide path GP. For example, the angle α between the guide bar 120 and the support surface Ps may be greater than or equal to 5 degrees and less than or equal to 60 degrees (5 °. Ltoreq.α.ltoreq.60°), preferably the angle α is greater than or equal to 5 degrees and less than or equal to 40 degrees (5 °. Ltoreq.α.ltoreq.40°). When the angle α between the guide bar 120 and the supporting surface Ps is greater than 60 degrees, for example, the guide bar 120 is easily bent.

Fig. 8 and 9 are a perspective view and a cross-sectional view, respectively, of a brush 110' according to another embodiment of the present invention. As shown in fig. 8 and 9, the brush 110' includes a brush body 114 and a plurality of rows of bristles 112. In this embodiment, the difference between the brush 110 'and the brush 110 of the previous embodiment is that the rows of bristles 112 have different arrangement pitches, so that the rows of bristles 112 have different densities in the circumferential direction of the brush body 114, and the brush 110' can locally promote the adhesion of the bristles 112 to the foreign matters, and can locally clean the foreign matters with larger size and reduce the resistance to the supporting surface Ps, but is not limited thereto.

The operation of the cleaning device 10 under different conditions will be described later with reference to fig. 10 to 12. As shown in fig. 10 (a), in a first condition of the operation of the cleaning apparatus 10, the driving means 130 provides power to drive the brush 110 to rotate, so that the plurality of rows of bristles 112 of the brush 110 rotate in sequence to contact the support surface Ps. As shown in fig. 10 (b), when the brush 110 rotates, one of the rows of bristles 112 rotates to a position ready to approach the support surface Ps. As shown in fig. 10 (c), the bristles 112 are deformed by the contact support surface Ps, and the tips of the foreign matter 20 (e.g., glass fragments) are slightly stuck by the bristles 112. Specifically, the bristles 112 are preferably made of an insulating material (e.g., silicone) such that the surface of the bristles 112 accumulates many positive/negative charges. When the bristles 112 contact the foreign matter 20, the foreign matter 20 is attached to the surfaces of the bristles 112 due to the electrostatic effect. As shown in fig. 10 (d), when the bristles 112 are rotated to be ready to be separated from the supporting surface Ps, foreign matter 20 attached to the bristles 112 is carried up by the bristles 112. As shown in fig. 10 (e), when the brush 112 is separated from the supporting surface Ps, the potential energy is released to provide elastic force (i.e., restoring force after elastic deformation), and the foreign matter 20 is ejected toward the guide path GP. Thereby, the foreign matter 20 is sprung into the collecting space 140 through the guide path GP by the elastic force provided by the brush 112.

In a second condition during operation of the cleaning device 10, as shown in fig. 11 (a), the power provided by the drive means 130 drives the brush 110 in rotation such that the rows of bristles 112 of the brush 110 rotate in sequence to contact the support surface Ps. As shown in fig. 11 (b), when the row of bristles 112 is deformed by contact with the supporting surface Ps, the foreign matter 20 (e.g., glass fragments) is driven along the supporting surface Ps. As shown in fig. 11 (c), when the bristles 112 are rotated to be separated from the supporting surface Ps, the rear ends of the foreign matter 20 attached to the bristles 112 are carried up by the bristles 112. As shown in fig. 11 (d), when the brush 112 is separated from the supporting surface Ps, potential energy is released to provide elastic force (i.e., restoring force after elastic deformation), and the foreign matter 20 is ejected toward the guide path GP. Thereby, the foreign matter 20 is sprung into the collecting space 140 through the guide path GP by the elastic force provided by the brush 112.

In a third condition during operation of the cleaning device 10, as shown in fig. 12 (a), the power provided by the drive means 130 drives the brush 110 in rotation such that the rows of bristles 112 of the brush 110 rotate in sequence to contact the support surface Ps. As shown in fig. 12 (b), when the foreign matter 20 (e.g., glass fragments) is caught between the brush 112 and the guide bar 120, the rear end of the foreign matter 20 is attached to the brush bristles 112 and then is carried up. As shown in fig. 12 (c), the brush 110 rotates so that the next bristle 112 pushes the foreign matter 20 that is carried up next. As shown in fig. 12 (d), when the next bristle 112 is separated from the supporting surface Ps, potential energy is released to provide elastic force (i.e., restoring force after elastic deformation), and the foreign matter 20 is ejected toward the guide path GP. Thereby, the foreign matter 20 is sprung into the collecting space 140 through the guide path GP by the elastic force provided by the brush 112.

The cleaning device 10 of the present invention uses the restoring force (i.e. elastic force) generated by elastic deformation when the bristles 112 of the brush 110 (or 110') contact the supporting surface Ps on which the foreign matter 20 is located, so that the foreign matter 20 can be sprung into the collecting space 140 through the guiding path GP provided by the guiding strip 120, the cleaning mode can be effectively simplified, and no air extraction/exhaust device is required, thereby avoiding turbulence. Furthermore, the cleaning device 10 of the present invention can be used with other electronic devices to enhance the cleaning effect.

In an embodiment, as shown in fig. 13, the cleaning device 10 of the present invention can be applied to another electronic device 30. Specifically, one or more cleaning devices 10 may be coupled with electronic device 30 such that one or more cleaning devices 10 operate with electronic device 30. In one embodiment, the electronic device 30 may be a moving device for driving the cleaning device 10 to move on the supporting surface Ps, so as to improve the cleaning efficiency of the cleaning device 10. In another embodiment, the electronic device 30 may be a sweeper. When the cleaning device 10 is integrated with the sweeper, the cleaning device 10 is preferably disposed at the front end of the sweeper, and the cleaning device 10 is preferably detachably coupled with the sweeper for assembling or disassembling according to the cleaning requirements of different fields. When the cleaning device 10 is operated together with the electronic device 30 (e.g., a sweeper), the cleaning device 10 can remove the larger-sized foreign matter (e.g., glass) first, and then the sweeper can remove the smaller-sized foreign matter (e.g., dust). Therefore, the cleaning effect of rough cleaning and then fine cleaning can be achieved, the service life of dust-sticking roll paper of the sweeper is effectively prolonged, and the possibility that the adhesive rubber wheel of the sweeper is polluted by large dust can be reduced.

The invention has been described with respect to the above-described embodiments, however, the above-described embodiments are merely examples of practicing the invention. It must be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, modifications and equivalent arrangements included within the spirit and scope of the claims are intended to be included within the scope of the invention.

Claims

1. A cleaning device comprising:

the brush comprises a brush body and a plurality of rows of brush hair, wherein the plurality of rows of brush hair are arranged on the brush body along the circumferential direction of the brush body;

the guide strip is arranged on one side of the hairbrush to provide a guide path; and

a driving unit for driving the brush to rotate,

wherein, with respect to a reference surface, the end of one of the rows of bristles located closest to the reference surface is closer to the reference surface than the end of the guide strip;

when the cleaning device is supported on a supporting surface and the brush is driven by the driving unit to rotate, the rows of bristles are sequentially contacted with the supporting surface to deform so as to provide an elastic force, and the elastic force enables foreign matters on the supporting surface to be cleaned to a collecting space through the guide path;

when the cleaning device is supported on the supporting surface, a horizontal distance (Dh) is formed between the projection of the central shaft of the brush body on the supporting surface and the tail end of the guide strip, and the horizontal distance (Dh) accords with the following relation:

wherein R is the distance from the central axis to the end of the bristle, and h is the distance from the central axis to the supporting surface.

2. The cleaning apparatus of claim 1, wherein the plurality of rows of bristles each comprise a plurality of bristle arrangements, and the plurality of rows of bristles are each disposed diagonally with respect to a central axis of the brush body such that the plurality of rows of bristles are disposed in a spiral on the brush body.

3. The cleaning apparatus of claim 2, wherein a ratio of a bristle width of each of the bristles in a radial direction of the brush body to a brush wheel diameter of the brush is 1:50 to 4:50.

4. The cleaning apparatus of claim 2, wherein the distance between the bristles of the same row is 0-2 times a bristle width along the central axis of the brush body.

5. The cleaning apparatus of claim 1, wherein the plurality of rows of bristles have an arrangement pitch on the brush body that is 0-2 times a bristle width along a radial direction of the brush body.

6. The cleaning apparatus of claim 1, wherein the plurality of rows of bristles each comprise a first sub-row of bristles and a second sub-row of bristles, the first sub-row of bristles being arranged from a first end of the brush body in a spiral about a central axis of the brush body toward the center of the brush body, and the second sub-row of bristles being arranged from a second end of the brush body opposite the first end in a spiral about the central axis of the brush body toward the center of the brush body to abut the first sub-row of bristles.

7. The cleaning apparatus as set forth in claim 6, wherein the arrangement direction of the first and second sub-rows of bristles and the central axis of the brush body respectively form a first angle and a second angle, and the first angle and the second angle are each greater than or equal to 5 degrees and less than or equal to 10 degrees.

8. The cleaning apparatus of claim 6, wherein the first and second sub-rows of bristles and the central axis of the brush body form a virtual triangle, an inner angle between the first and second sub-rows of bristles is greater than or equal to 160 degrees and less than or equal to 170 degrees, and a rotation direction of the brush is in the same direction as an opening direction of the inner angle.

9. The cleaning apparatus of claim 1, wherein the guide bar has an angle with the support surface that is greater than or equal to 5 degrees and less than or equal to 60 degrees when the cleaning apparatus is supported on the support surface.

10. The cleaning apparatus of claim 1, wherein the stiffness of the guide bar is greater than the stiffness of the bristles.

11. The cleaning device of claim 1, wherein the guide strip is a rubber strip and the bristles are silica gel bristles.

12. The cleaning apparatus of claim 1, further comprising a wheel for supporting the cleaning apparatus on the support surface, wherein the end of the guide bar is closer to the reference surface than the bottom end of the wheel.

13. The cleaning apparatus of claim 1, wherein the collection space is a space surrounded by a collection box or a collection bag.