CN114424915A - Cleaning equipment and roller brush thereof - Google Patents

Abstract

The invention relates to a roller brush, which comprises a roller body provided with brush hair, wherein the brush hair comprises: the first hard bristle bundles are distributed on the circumferential surface of the roller body along the circumferential direction and comprise at least one first hard bristle; the soft brush hair bundle comprises a plurality of first soft brush hair bundles and a plurality of second soft brush hair bundles, the first soft brush hair bundles and the second soft brush hair bundles are distributed on the circumferential surface of the roller body, the first soft brush hair bundles and the second soft brush hair bundles are respectively positioned on two sides of the first hard brush hair bundles in the axial direction of the roller body, the first soft brush hair bundles comprise at least one first soft brush hair, and the second soft brush hair bundles comprise at least one second soft brush hair. The roller brush only needs one or more times of cleaning to realize effective cleaning of the ground gap and the ground, the cleaning gap is not needed to be cleaned independently firstly, then the ground is not needed to be cleaned for the second time, and the problems that scattered objects can be swept into the ground gap when the ground is cleaned for the second time and the cleaning effect is influenced are also avoided. A cleaning device with the roller brush is also provided.

Description

Cleaning equipment and roller brush thereof

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to a roller brush and cleaning equipment using the roller brush.

Background

In the traditional technology, a rotating 'thin seam brush' is used for cleaning a 'narrow seam' on the ground, but the cleaning efficiency is low. Specifically, when the thin seam brush is used for cleaning, dust, mud, stone particles, moss and the like can be cleaned from the seams and scattered on the ground, so that the ground needs to be cleaned for the second time; however, when the floor is cleaned twice, the scattered objects are swept into the ground seams, and the cleaning effect is poor.

Disclosure of Invention

Therefore, a roller brush is needed to be provided for solving the problem of poor cleaning efficiency of the traditional 'thin gap brush'. A cleaning device having such a roller brush is also proposed.

A roller brush, includes the roll body, be equipped with the brush hair on the circumferential surface of roll body, the brush hair includes: the first hard bristle bundles are distributed on the circumferential surface of the roller body along the circumferential direction and comprise at least one first hard bristle; the soft brush hair bundle comprises a plurality of first soft brush hair bundles and a plurality of second soft brush hair bundles, the first soft brush hair bundles and the second soft brush hair bundles are distributed on the circumferential surface of the roller body, the first soft brush hair bundles and the second soft brush hair bundles are respectively positioned on two sides of the first hard brush hair bundles in the axial direction of the roller body, the first soft brush hair bundles comprise at least one first soft brush hair, and the second soft brush hair bundles comprise at least one second soft brush hair.

When the roller brush is used for cleaning a surface to be cleaned, the hardness of the first hard brush hair bundle is high, the ground gap can be effectively cleaned, the first soft brush hair bundles and the second soft brush hair bundles on two sides can quickly clean the ground, so that the ground gap and the ground can be cleaned simultaneously, and the ground gap cleaning efficiency is greatly improved. In actual operation, even if the first hard bristle bundle is not aligned with the ground seam, the cleaning effect is not influenced, and effective cleaning of the ground seam and the ground can be realized only by repeatedly cleaning for several times. Compared with the prior art, the roller brush of the embodiment only needs to clean the ground gap and the ground once or for multiple times, the sweeping gap does not need to be cleaned independently firstly, the ground is not cleaned for the second time, and the problems that scattered objects can be swept into the ground gap and the cleaning effect is influenced when the ground is cleaned for the second time are also solved.

In one embodiment, the roller body comprises a left roller body and a right roller body which are detachably butted together along the axial direction of the roller body, the first soft bristle bundle is arranged on the left roller body, and the second soft bristle bundle is arranged on the right roller body; the first bundle of bristles is clamped between the left and right roller bodies.

In one embodiment, the left roller body and the right roller body are both arranged in a hollow manner, so that the roller body has an inner cavity, and the left roller body and the right roller body are fixedly connected through a bolt and a nut, and the bolt and the nut are located in the inner cavity.

In one embodiment, the first hard bristles, the first soft bristles and the second soft bristles are made of the same material, the diameters of the first soft bristles and the second soft bristles are smaller than the diameter of the first hard bristles, and the heights of the first soft bristle bundles and the second soft bristle bundles are smaller than the height of the first hard bristle bundles.

In one embodiment, a gap into which the first bristle bundle can be inserted is formed between the left roller body and the right roller body, and the gap comprises a clamping area and an anti-falling area; first bristle bundle includes the fixed part, still be equipped with anticreep portion on the fixed part, the fixed part is fixed in the clamping area, anticreep portion with the clamping area cooperatees in order to restrict first bristle bundle is in the footpath of roll body is kept away from the axis motion of roll body.

In one embodiment, the anti-dropping part comprises a first arm and a second arm which are respectively connected with the fixing part and are in cantilever structures, a protrusion is arranged in the anti-dropping area, and the protrusion is positioned in an interval between the first arm and the second arm.

In one embodiment, the first arm extends from the fixing portion toward the axis of the roller body, and the second arm extends from the fixing portion away from the axis of the roller body in the radial direction of the roller body.

In one embodiment, two ends of the roller body in the axial direction are further respectively provided with a second hard bristle bundle and a third hard bristle bundle, the second hard bristle bundle is arranged on one side of the first soft bristle bundle, which is far away from the first hard bristle bundle, and is distributed on the circumferential surface of the roller body along the circumferential direction, the third hard bristle bundle is arranged on one side of the second soft bristle bundle, which is far away from the first hard bristle bundle, and is distributed on the circumferential surface of the roller body along the circumferential direction, and the heights of the second hard bristle bundle, the third hard bristle bundle, the first soft bristle bundle and the second soft bristle bundle are equal.

In one embodiment, the second and third tufts of stiff bristles are mirror images of the first tuft of stiff bristles.

It is also proposed a cleaning device comprising: a housing; a roller brush as set forth in any one of the preceding embodiments, said roller brush being rotatably supported to said housing; and the driving mechanism is arranged in the shell and is used for driving the roller brush to rotate.

Has the advantages that:

according to the roller brush, the first soft brush hair bundle and the second soft brush hair bundle are arranged on the roller body, and the first hard brush hair bundle is arranged between the first soft brush hair bundle and the second soft brush hair bundle, so that when the roller brush is used for cleaning a surface to be cleaned, the cleaning of a ground gap can be realized through the first hard brush hair bundle, the cleaning of the ground can be realized through the first soft brush hair bundle and the second soft brush hair bundle, a user only needs to clean the ground gap once or for multiple times, the effective cleaning of the ground gap and the ground can be realized, the cleaning of the ground gap and the ground can be not needed to be independently cleaned firstly and then carried out for two times, and the phenomenon that scattered objects are swept into the ground gap to influence the cleaning effect when the ground is cleaned for two times is avoided.

Drawings

Fig. 1 is a schematic structural view of a roller brush according to an embodiment of the present invention.

Fig. 2 is a schematic view of a cleaning apparatus having the roller brush shown in fig. 1.

Figure 3 is a partial cross-sectional view of the cleaning device shown in figure 2.

FIG. 4 is a schematic cross-sectional view of a roll brush according to another embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view of a roller brush according to another embodiment of the present invention, illustrating the structure of the gap between the left roller body and the right roller body.

Fig. 6 is a schematic view showing the structure of the first hard bristle bundle in the roller brush shown in fig. 5.

The relevant elements in the figures are numbered correspondingly as follows:

100. roller brushing; 10. a roller body; 110. a left roller body; 120. a right roller body; 130. a gap; 131. a clamping area; 132. an anti-drop zone; 133. a protrusion; 140. a bolt; 150. a nut; 160. a rotating shaft; 170. a bearing; 20. a first bundle of stiff bristles; 210. a fixed part; 220. a first arm; 230. a second arm; 30. a first soft bristle tuft; 40. a second soft bristle tuft; 50. a second bundle of stiff bristles; 60. a third bundle of hard bristles; 200. cleaning equipment; 201. a housing; 202. a motor; 203. a conveyor belt; 204. a handle.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

Referring to fig. 1, fig. 1 is a schematic side view of a roller brush 100 according to an embodiment of the present invention; fig. 2 is a schematic structural view of a cleaning apparatus 200 having the roller brush 100 shown in fig. 1; fig. 3 is a partial sectional view of the cleaning apparatus 200, illustrating a mounting structure of each component inside the housing 201 of the cleaning apparatus 200.

As shown in fig. 1, the roller brush 100 of the present embodiment includes a roller body 10, and bristles are provided on a circumferential surface of the roller body 10, wherein the roller body 10 is rotatably supported by a housing 201 of a cleaning device 200 and is driven by a driving mechanism to rotate, so that the bristles are rotated around an axis to perform a cleaning operation. As shown in fig. 3, in the working state, the housing 201 of the cleaning apparatus 200 is located above the roller brush 100 and covers the upper portion of the roller brush 100 and exposes the bottom portion of the roller brush 100 to the outside, so that the bristles on the roller body 10 can clean the surface to be cleaned.

When the cleaning device is specifically arranged, the roller body 10 is cylindrical, and two axial ends of the roller body 10 are used for being rotatably connected with the shell 201 of the cleaning device 200. The bristles include a plurality of first hard bristle bundles 20, a plurality of first soft bristle bundles 30, and a plurality of second soft bristle bundles 40, which are distributed on the circumferential surface of the roller body 10. The bristle bundles are distributed on the circumferential surface of the roller body 10, which means in the circumferential direction of the roller body 10. Each bundle of bristles may be fixed to the roller body 10 directly or indirectly.

In embodiments of the present invention, "hard" and "soft" are relative terms. Specific to first hard bristle tuft 20, first soft bristle tuft 30, second soft bristle tuft 40 means that the hardness of first hard bristle tuft 20 is greater than the hardness of first soft bristle tuft 30 and second soft bristle tuft 40; alternatively, the amount of bending deformation of the first bundle of hard bristles 20 is smaller than that of the first bundle of soft bristles 30 and smaller than that of the second bundle of soft bristles in terms of the same amount of bending deformation under the same force. The first and second soft bristle bundles 30, 40 are soft bristles compared to the first and second hard bristle bundles 20, and the hardness of the first and second soft bristle bundles 30, 40 may be the same or slightly different. Preferably, the first and second soft bristle tufts 30, 40 have the same hardness and the same amount of bending deformation under the same force.

A plurality of first bristle bundles 20 are circumferentially distributed on the circumferential surface of the roller body 10 to form an annular ring of hard brush loops. The hard brush loop is located at the center in the axial direction of the roll body 10. The plurality of first soft bristle bundles 30 and the plurality of second soft bristle bundles 40 are also distributed on the circumferential surface of the roller body 10, and the first soft bristle bundles 30 and the second soft bristle bundles 40 are respectively located on both sides of the first hard bristle bundles 20 in the axial direction of the roller body 10. The arrangement of the first and second soft bristle tufts 30 and 40 is not limited. In this embodiment, specifically, the first soft bristle bundles 30 are spirally disposed on the circumferential surface of the roller body 10, and the second soft bristle bundles 40 are spirally disposed on the circumferential surface of the roller body 10. In other embodiments, the plurality of first soft bristles may be arranged to form a plurality of soft bristle loops arranged in the axial direction of the roller body 10; similarly, a plurality of second soft bristles may be arranged to form a plurality of soft bristle loops arranged in the axial direction of the roller body 10.

The first bristle bundle 20 includes at least one first bristle. In other words, each of the first hard bristle bundles 20 may be a single hard bristle, or may be a plurality of hard bristle bundles. Thus, for the first bundle of stiff bristles 20, the diameter of the first bundle of stiff bristles 20 refers to the diameter of the single stiff bristle or to the diameter of a bundle of multiple stiff bristles, more specifically the diameter of the radial cross-sectional profile circle of the bundle. The bundling here means arranging a plurality of hard bristles in parallel with each other, concentrating them in the arrangement area of the first bundle 20 of hard bristles, thereby forming the first bundle. In the case where the diameter of the first bristle tuft 20 is constant, the greater the number of bristles forming the first bristle brush tuft, the thinner the diameter of the individual bristles.

The first soft bristle bundles 30 include at least one soft bristle, i.e., each first soft bristle bundle 30 may be a single soft bristle or a plurality of soft bristles bundled together. Thus, with respect to the first soft bristle tuft 30, the diameter of the first soft bristle tuft 30 refers to the diameter of a single soft bristle or to the diameter of a bundle of a plurality of soft bristles.

Similarly, the second soft bristle group 40 includes at least one second soft bristle, i.e., each second soft bristle group 40 may be a single soft bristle or a plurality of soft bristles bundled together. Therefore, for the second soft bristle tuft 40, the diameter of the second soft bristle tuft 40 refers to the diameter of a single soft bristle or to the diameter of a bundle of a plurality of soft bristles.

Referring to fig. 2 and 3, when the roller brush 100 is used for cleaning floor tiles or similar surfaces to be cleaned, the driving mechanism of the cleaning device 200 drives the roller brush 100 to rotate around the shaft, and the bristle bundles rotate around the shaft, wherein the first hard bristle bundle 20 has a relatively high hardness and can effectively clean the floor space, and the first soft bristle bundle 30 and the second soft bristle bundle on the two sides can quickly clean the floor space, so that the floor space and the floor surface can be cleaned simultaneously, and the floor space cleaning efficiency is greatly improved. In practice, even if the first hard bristle bundles 20 are not aligned with the ground seams, the cleaning effect is not affected, and effective cleaning of the ground seams and the ground can be realized only by repeatedly cleaning for several times.

Compared with the prior art, when the roller brush 100 of the embodiment cleans the surface to be cleaned, effective cleaning of the ground gap and the ground can be realized only by one or more times of cleaning, the ground gap does not need to be cleaned independently firstly, the ground is not cleaned for the second time, and the problems that scattered objects can be swept into the ground gap to influence the cleaning effect when the ground is cleaned for the second time are also solved.

In practice, the ground seam condition of the surface to be cleaned is different, and there are cases of "light condition ground seam" and "heavy condition ground seam", for example, "light condition ground seam" may include the following cases: only scattered dust, leaves, hair and other scattered objects which can be blown by wind exist in the ground seam, and the ground seam is relatively easy to clean. The "heavy duty ground seam" may include the following: the ground seams contain firmly bonded scatterers such as cement or heavy scatterers such as screws, steel needles and the like, which are not easy to clean.

In order to more effectively meet the cleaning requirements under different working conditions, in some embodiments of the present invention, the roller brushes 100 of the above embodiments are respectively further modified, so that the modified roller brushes 100 can better adapt to the cleaning requirements of "light-condition seams" and "heavy-condition seams", respectively.

Specifically, in some embodiments of the present invention, the first hard bristles, the first soft bristles, and the second soft bristles are made of the same flexible material, and the diameter of the first soft bristles and the diameter of the second soft bristles are smaller than the diameter of the first hard bristles, so that the first hard bristle bundle 20 is a hard bristle bundle compared with the first soft bristle bundle 30 and the second soft bristle bundle 40.

The height of the first soft bristle bundle 30 and the height of the second soft bristle bundle 40 are set to be smaller than the height of the first hard bristle bundle 20. That is, the height of the first bundle of hard bristles 20 is the largest. In the embodiment of the present invention, the "height" (which may also be referred to as a length) of the bristle bundle refers to a distance from the tip end (end away from the roller body 10) of each bristle bundle to the axis X of the roller body 10 in the radial direction of the roller body 10.

Since the height of the first hard bristle bundle 20 is large, the first hard bristle bundle 20 can be inserted into the ground gap when both the first and second soft bristle bundles 30 and 40 contact the ground. The first hard bristles, the first soft bristles and the second soft bristles are made of the same material, so that the bending deformation amount of the first hard bristles, the bending deformation amount of the first soft bristles and the second soft bristles are the same or basically the same, when the first soft bristle bundle 30 and the second soft bristle bundle 40 contact the ground and deform, the first hard bristle bundle 20 can also contact scattered objects in the ground gap for cleaning, the phenomenon that the first hard bristle bundle 20 is suspended due to the fact that the first soft bristle bundle 30 and the second soft bristle bundle 40 contact the ground cannot occur, and therefore the cleaning effect of the first hard bristle bundle 20 on the ground gap is guaranteed. In one embodiment, the difference in height between the first hard bristle tuft 20 and the first and second soft bristle tufts 30 and 40 varies depending on the depth of the ground seam. Generally, the depth of the ground seam is 5mm to 10mm, and the above-mentioned height difference is set to 5mm to 10 mm.

In a specific embodiment, the first hard bristles, the first soft bristles and the second soft bristles are all bristles made of nylon materials or the like. Wherein the first hard bristle bundle 20 has a diameter ranging from 4mm to 6mm, is composed of a plurality of nylon bristles having a diameter ranging from 0.8mm to 1.2mm, and can cope with a ground seam having a width ranging from 5mm to 10 mm. Preferably, the first hard bristles of the first hard bristle bundle 20 have a diameter of 1mm, and have superior hardness and toughness. The first soft bristle bundle 30 includes a first soft bristle having a diameter of 0.4 mm. The second soft bristle bundle 40 includes a second soft bristle having a diameter of 0.4 mm. The difference in height between the first hard bristle bundle 20 and the first and second soft bristle bundles 30 and 40 is 8mm, and it is possible to work on a surface to be cleaned having a ground gap depth of 5mm to 10 mm.

In addition, there is no particular limitation in the diameter of the bundle of bristles. Such as first bristle tuft 20, may or may not have a diameter equal to that of first bristle tuft 30. For example, the diameter of the first hard bristle bundle 20 is 5mm, and the diameter of the first hard bristles in the first hard bristle bundle 20 is 1 mm; the diameter of the first soft bristle bundle 30 is 5mm, and the diameter of the first soft bristles is 0.5 mm. For another example, the diameter of the first bundle of hard bristles 20 is 5mm, and the diameter of the first hard bristles in the first bundle of hard bristles 20 is 1 mm; the diameter of the first soft bristle bundle 30 is 4mm, and the diameter of the first soft bristles is 0.4 mm.

In order to meet the cleaning requirement of 'heavy working condition seams', in some embodiments of the invention, the first hard bristles are metal bristles, and the first soft bristles and the second soft bristles are both nylon bristles; the height of the first soft bristle bundle 30 and the height of the second soft bristle bundle 40 are not lower than the height of the first hard bristle bundle 20. The specific type of metal is not limited, as long as the bending deformation of the metal is smaller than that of the nylon bristles under the same stress condition, and for example, iron wires, stainless steel wires and the like can be selected. The height of the first soft bristle bundle 30 and the height of the second soft bristle bundle 40 are not lower than the height of the first hard bristle bundle 20, either the height of the first soft bristle bundle 30 and the height of the second soft bristle bundle 40 are greater than the height of the first hard bristle bundle 20 or the height of the first soft bristle bundle 30 and the height of the second soft bristle bundle 40 are identical to the height of the first hard bristle bundle 20.

When the roller brush 100 of the present embodiment is used to clean a surface to be cleaned, since the heights of the first soft bristle bundles 30 and the second soft bristle bundles 40 are not lower than the height of the first hard bristle bundles 20, the first soft bristle bundles 30 and the second soft bristle bundles 40 firstly contact the ground and generate large bending deformation, so that the first hard bristle bundles 20 can enter into the gaps between the ground and then contact with the scattered objects in the gaps between the ground for further cleaning.

In addition, since the height of the first soft bristle bundle 30 and the height of the second soft bristle bundle 40 are not lower than the height of the first hard bristle bundle 20, the first soft bristle bundle 30 and the second soft bristle bundle 40 can maintain contact with the ground when the first hard bristle bundle 20 contacts the scattered matter in the crevice, so that the user can press the roller body 10 toward the ground with a relatively small force and maintain the first soft bristle bundle 30 and the second soft bristle bundle 40 in contact with the ground, and thus the cleaning apparatus 200 is less loaded and the user can operate conveniently.

In this embodiment, the difference between the diameters of the first hard bristles and the diameters of the second soft bristles and the third soft bristles can be reduced appropriately. Specifically, the first soft bristle bundle 30 includes a first soft bristle having a diameter of 0.4 mm; the second soft bristle bundle 40 includes a second soft bristle having a diameter of 0.4 mm. At this time, the diameter of the first hard bristles may be less than 0.8 mm. Further, the diameter of the first stiff bristle may be equal to the diameter of the second and third soft bristles.

The "heavy duty ground sewing" may have a severe working environment, and even if the hardness of the first hard bristle bundle 20 is further increased, the wear rate of the first hard bristle bundle 20 may be greater than that of the first hard bristle bundle 20 in the "light duty ground sewing" working environment. For this reason, the roller brush 100 according to an embodiment of the present invention is further improved on the basis of the above embodiment.

Specifically, as shown in fig. 4, the roller body 10 includes a left roller body 110 and a right roller body 120 detachably butted together along the axial direction of the roller body 10, the first soft bristle bundle 30 is disposed on the left roller body 110, and the second soft bristle bundle 40 is disposed on the right roller body 120; the first bundle of bristles 20 is held between the left roller body 110 and the right roller body 120. Due to the above-mentioned detachable structure, when the first bundle of hard bristles 20 is worn out more, the roller body 10 can be detached from the housing 201, and then the roller body 10 is detached again to replace the first bundle of hard bristles 20.

In specific implementation, as shown in fig. 5, after the left roller body 110 and the right roller body 120 are butted, a gap 130 into which the first bristle bundle 20 can be inserted is formed between the two, the gap 130 is formed with a clamping area 131 and a disengagement-prevention area 132, in the axial direction of the roller body 10, the size of the clamping area 131 is smaller than that of the disengagement-prevention area 132, and two protrusions 133 are arranged in the disengagement-prevention area 132 and are respectively located on the left roller body 110 and the right roller body 120. As shown in fig. 6, the first bristle bundle 20 includes a fixing portion 210, wherein two sides of the fixing portion 210 are respectively provided with a retaining portion, and the retaining portion includes a first arm 220 and a second arm 230 which are respectively connected to the fixing portion 210 and have a cantilever structure; and in the radial direction of the roller body 10, the first arm 220 extends from the fixed portion 210 near the axis of the roller body 10, and the second arm 230 extends from the fixed portion 210 away from the axis of the roller body 10 with a space between the first arm 220 and the second arm 230.

Referring to fig. 4 to 6, when the first bristle bundle 20 is mounted to the roller body 10, the fixing portion 210 extends into the clamping area 131 and is clamped between the left roller body 110 and the right roller body 120. The retaining portion cooperates with the holding region 131 to limit the movement of the first bristle bundle 20 in the radial direction of the roller body 10 away from the axis X of the roller body. Specifically, the protrusion 133 extends into the space between the first arm 220 and the second arm 230. If the first arm 220 is located above the protrusion 133, the second arm 230 is located below the protrusion 133. That is, the protrusions 133 are located on the moving path of the first and second arms 220 and 230, so that the protrusions 133 can block the first hard bristle bundle 20 from being excessively inserted downward, and at the same time, the protrusions 133 can block the first hard bristle bundle 20 from moving upward, thereby preventing the first hard bristle bundle 20 from being accidentally removed from the holding region 131.

Since the first arm 220 and the second arm 230 are both cantilever structures, in which the second arm 230 extends from the fixing portion 210 away from the axis of the roller body 10, when the first bristle bundle 20 is mounted to the roller body 10, the second arm 230 is deformed and approaches the fixing portion 210 when being pressed by the protrusion 133 from the fixing portion 210, thereby facilitating the insertion of the first bristle bundle 20; the first arm 220 extends from the fixing portion 210 near the axis of the roller body 10, and the first arm 220 is deformed by the pressing of the protrusion 133 and is away from the fixing portion 210, thereby achieving the above-described purpose of blocking downward excessive insertion of the first bundle 20 of hard bristles.

In specific implementation, the left roller body 110 and the right roller body 120 are detachably connected by a bolt 140 and a nut 150. As shown in fig. 4, the left roller body 110 and the right roller body 120 are both hollow so that the assembled roller body 10 has an inner cavity in which the bolt 140 and the nut 150 are located. Wherein the head of the bolt 140 is located in the right roller body 120, and the bolt 140 extends out of the right roller body 120 and into the left roller body 110 and is locked by the nut 150. In this embodiment, the bolt 140 and the nut 150 connecting the left roller body 110 and the right roller body 120 are hidden inside the roller body 10, and the arrangement of the bristles on the outer surface of the roller body 10 is not affected.

Further, similar to the roller body 10 shown in fig. 3, as shown in fig. 4, in this embodiment, the left end (the end far from the right roller body 120) of the left roller body 110 is used to be connected to the housing 201, and the right end (the end far from the left roller body 110) of the right roller body 120 is used to be connected to the housing 201, and since the left roller body 110 and the right roller body 120 are both hollow, the left end of the left roller body 110 and the right end of the right roller body 120 can be provided with the bearing 170 and coupled to the rotating shaft 160 on the housing 201. That is, the left roller body 110 and the right roller body 120 are both hollow, and are used to realize the cooperation with the rotating shaft 160 on the housing 201, and the hidden design of the bolt 140 and the nut 150 connecting the left roller body 110 and the right roller body 120.

On the basis of any of the above embodiments, the first and second soft bristle bundles 30 and 40 are spirally provided on the circumferential surface of the roll body 10. The first and second soft bristle tufts 30 and 40 are arranged spirally, and when the roller body 10 rotates, the first and second soft bristle tufts 30 and 40 can gather the falling objects forward in the moving direction of the roller body 10, thereby improving the cleaning efficiency.

On the basis of any of the above embodiments, in an embodiment, the two ends of the roller body 10 in the axial direction are further provided with a second hard bristle bundle 50 and a third hard bristle bundle 60, respectively, and the second hard bristle bundle 50 and the third hard bristle bundle 60 are used for keeping the roller brush 100 balanced.

Specifically, the second hard bristle bundles 50 are disposed on a side of the first soft bristle bundles 30 away from the first hard bristle bundles 20 and are circumferentially distributed on the circumferential surface of the roller body 10, the third hard bristle bundles 60 are disposed on a side of the second soft bristle bundles 40 away from the first hard bristle bundles 20 and are circumferentially distributed on the circumferential surface of the roller body 10, and the heights of the second hard bristle bundles 50, the third hard bristle bundles 60, the first soft bristle bundles 30, and the second soft bristle bundles 40 are equal.

The second and third hard bristle bundles 50 and 60 are harder than the first and second soft bristle bundles 30 and 40, i.e., the second and third hard bristle bundles 50 and 60 have a higher hardness, and the second and third hard bristle bundles 50 and 60 have a smaller bending deformation under the same force. The second bristle bundle 50 may be a single bristle or a plurality of bundled bristles. The diameter of the second bundle 50 of stiff bristles refers to the diameter of a single bristle or to the diameter of a bundle of multiple bristles. The third bristle tuft 60 may be a tuft comprising a single bristle or a plurality of tufts of bristles. The diameter of the third bristle bundle 60 refers to the diameter of a single bristle or to the diameter of a bundle of multiple bristles.

When the bristle setting is carried out, the bristles of the second hard bristle bundle 50, the third hard bristle bundle 60, the bristles of the first soft bristle bundle 30 and the bristles of the second soft bristle bundle 40 are all nylon bristles, and the diameter of the bristles of the second hard bristle bundle 50 is equal to that of the bristles of the third hard bristle bundle 60; the diameter of the bristles of the first soft bristle bundle 30 is equal to that of the bristles of the second soft bristle bundle 40, but is smaller than that of the bristles of the second hard bristle bundle 40 and that of the bristles of the third hard bristle bundle 60. In addition, the diameters of the second hard bristle tuft 50, the third hard bristle tuft 60, the first soft bristle tuft 30, and the second soft bristle tuft 40 are not particularly limited.

When the roller brush 100 is used to clean the floor, the second hard bristle bundle 50, the third hard bristle bundle 60, the first soft bristle bundle 30 and the second soft bristle bundle 40 have the same height, so they contact the floor at the same time, and the second hard bristle bundle 50 and the third hard bristle bundle 60 are hard, and the second hard bristle bundle 50 and the third hard bristle bundle 60 support the roller body 10 from both ends of the roller brush 100 to maintain balance, so that the first soft bristle bundle 30 and the second soft bristle bundle 40 normally clean the floor.

In addition, the second and third bristle bundles 50 and 60 are disposed at both ends of the roller body 10, and in addition to maintaining the balance of the roller body 10, the second and third bristle bundles 50 and 60 can be used for cleaning a seam (such as a wall seam), so that the roller brush 100 of the present embodiment has a relatively comprehensive cleaning capability.

In a preferred embodiment, second and third tufts of hard bristles 50, 60 are mirror images of first tuft 20. The second hard bristle bundles 50 and the third hard bristle bundles 60 are symmetrically arranged in the same manner, and the second hard bristle bundles 50 and the third hard bristle bundles 60 can keep the same balance effect at the moment in the rolling cleaning process of the roller brush 100. In addition, the second and third hard bristle bundles 50 and 60 may be bristle bundles of the same type.

In the above embodiment, the first and second soft bristle bundles 30 and 40 are also arranged in mirror symmetry with respect to the first hard bristle bundle 20. For example, the plurality of first soft bristle bundles 30 and the plurality of second soft bristle bundles 40 are symmetrically arranged and spirally distributed. In other embodiments, plurality of first bristle tufts 30 and plurality of second bristle tufts 40 may be asymmetrical, such as where plurality of first bristle tufts 30 are formed in a single helix and plurality of second bristle tufts 40 are formed in a double helix. And it should be noted that the balancing function provided by second and third hard bristle bundles 50 and 60 is not affected regardless of whether the plurality of first and second soft bristle bundles 30 and 40 are symmetrical.

Referring to fig. 2 and 3, an embodiment of the present invention further provides a cleaning apparatus 200, which includes the roller brush 100 of the embodiment shown in fig. 1, a housing 201, and a driving mechanism disposed in the housing 201.

As shown in fig. 3, the bottom of the casing 201 is open, the roller brush 100 is partially embedded into the casing 201 from below, two ends of the roller brush 100 are rotatably connected to the casing 201 through the rotating shaft 160, one end of the rotating shaft 160 is embedded into the roller body 10, and the other end of the rotating shaft 160 is supported by the casing 201 through the bearing 170. The driving mechanism comprises a motor 202 and a transmission mechanism, wherein the transmission mechanism comprises a transmission belt 203, and the transmission belt 203 is in transmission connection with an output shaft of the motor 202 and the rotating shaft 160. Thus, the motor 202 drives the roller brush 100 to rotate around the shaft when operating. As shown in fig. 2, a handle 204 is further provided on a side of the housing 201 facing away from the roller brush 100. One end of the handle 204 is fixed to the housing 201, and the other end of the handle 204 is used for holding operation.

In the cleaning device 200, when the cleaning device works, a user holds the handle 204 to push the housing 201 to advance, and simultaneously the motor 202 drives the roller brush 100 to rotate through the transmission mechanism, wherein the first hard bristle bundle 20 can effectively clean the ground gap, and the first soft bristle bundle 30 and the second soft bristle bundle on two sides can quickly clean the ground, so that the ground gap and the ground can be cleaned simultaneously, and the ground gap cleaning efficiency is greatly improved.

In addition, the roller brush 100 in the cleaning device 200 of the present embodiment may be replaced with the roller brush 100 shown in fig. 4, and the installation manner and the operation principle thereof will not be described again.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A roller brush comprises a roller body, wherein brush hair is arranged on the circumferential surface of the roller body,

the bristle includes:

the first hard bristle bundles are distributed on the circumferential surface of the roller body along the circumferential direction and comprise at least one first hard bristle;

the soft brush hair bundle comprises a plurality of first soft brush hair bundles and a plurality of second soft brush hair bundles, the first soft brush hair bundles and the second soft brush hair bundles are distributed on the circumferential surface of the roller body, the first soft brush hair bundles and the second soft brush hair bundles are respectively positioned on two sides of the first hard brush hair bundles in the axial direction of the roller body, the first soft brush hair bundles comprise at least one first soft brush hair, and the second soft brush hair bundles comprise at least one second soft brush hair.

2. A roller brush according to claim 1, wherein the roller body comprises a left roller body and a right roller body which are detachably butted together in an axial direction of the roller body, the first soft bristle bundle being provided on the left roller body, and the second soft bristle bundle being provided on the right roller body; the first bundle of bristles is clamped between the left and right roller bodies.

3. A roller brush according to claim 2, characterized in that the left roller body and the right roller body are both arranged hollow so that the roller body has an inner cavity, the left roller body and the right roller body being firmly connected by a bolt and a nut, the bolt and the nut being located in the inner cavity.

4. A roller brush according to claim 1, wherein the first hard bristles, the first soft bristles and the second soft bristles are made of the same material, the diameter of the first soft bristles and the diameter of the second soft bristles are smaller than the diameter of the first hard bristles, and the height of the first soft bristle bundles and the height of the second soft bristle bundles are smaller than the height of the first hard bristle bundles.

5. A roller brush as claimed in claim 2, wherein the left roller body and the right roller body form a gap therebetween into which the first bristle tuft is inserted, the gap comprising a grip region and a run-off prevention region; first bristle bundle includes the fixed part, still be equipped with anticreep portion on the fixed part, the fixed part is fixed in the clamping area, anticreep portion with the clamping area cooperatees in order to restrict first bristle bundle is in the footpath of roll body is kept away from the axis motion of roll body.

6. A roller brush as claimed in claim 5, wherein the retaining portion comprises first and second arms connected to the fixing portion respectively and in a cantilever configuration, and a projection is provided in the retaining region, the projection being located in the space between the first and second arms.

7. A roller brush according to claim 6, characterized in that the first arm extends from the stationary part close to the axis of the roller body and the second arm extends from the stationary part away from the axis of the roller body in the radial direction of the roller body.

8. A roller brush as claimed in claim 1, wherein the roller body is further provided at both ends in the axial direction thereof with a second hard bristle bundle and a third hard bristle bundle, respectively, the second hard bristle bundle being disposed on a side of the first soft bristle bundle remote from the first hard bristle bundle and circumferentially distributed on the circumferential surface of the roller body, the third hard bristle bundle being disposed on a side of the second soft bristle bundle remote from the first hard bristle bundle and circumferentially distributed on the circumferential surface of the roller body, and the second hard bristle bundle, the third hard bristle bundle, the first soft bristle bundle and the second soft bristle bundle being equal in height.

9. A roller brush as claimed in claim 8, wherein the second and third tufts of stiff bristles are mirror images of the first tufts of stiff bristles.

10. A cleaning apparatus, comprising:

a housing;

a roller brush according to any one of claims 1 to 9, said roller brush being rotatably supported in said housing

And the driving mechanism is arranged in the shell and is used for driving the roller brush to rotate.

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