Side brush and cleaning robot

Abstract

The utility model provides a side brush and a cleaning robot, the side brush comprises a main body part and at least one cleaning part, the main body part is configured to rotate around a first axis in a working state of the cleaning robot; the cleaning part comprises a cleaning end and a fixed end connected with the main body part, and the cleaning end is arranged at the fixed end and extends in the direction away from the main body part; the fixed end bends and extends, so that a first included angle is formed between the extending direction of the cleaning end and the radial direction of the main body part passing through the joint of the fixed end and the main body part. The anti-winding effect of the side brush can be improved, and the service life of the cleaning part is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning, in particular to a side brush and a cleaning robot. BACKGROUND

[0002] With the continuous development of science and technology, cleaning robots have become more and more common in people's daily life. Cleaning robots can realize cleaning operations such as cleaning the surface to be cleaned, greatly facilitating household cleaning work and reducing the intensity of people's housework. However, the side brush equipped in the commonly used cleaning robot is prone to hair entanglement, and the cleaning part of the side brush is easy to wear. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a side brush and a cleaning robot, which can improve the anti-entanglement effect of the side brush and prolong the service life of the cleaning part.

[0004] To solve the above technical problems, the present application provides a side brush, which comprises a main body part and at least one cleaning part. The main body part is configured to rotate around a first axis in the working state of the cleaning robot. The cleaning part comprises a cleaning end and a fixed end connected with the main body part. The cleaning end is arranged on the fixed end and extends away from the main body part. The fixed end is curved to extend so that the extension direction of the cleaning end forms a first included angle with the radial direction of the main body part at the connection between the fixed end and the main body part. The first included angle is greater than 0 degrees.

[0005] To solve the above technical problems, the present application further provides a cleaning robot, which comprises a body, the above-mentioned side brush, a main brush, a driving wheel and a controller. The side brush is arranged at the bottom edge of the body. The main brush is arranged at the bottom of the body, and the cleaning range of the side brush at least partially overlaps the cleaning range of the main brush. The driving wheel is used to drive the body to move and is at least partially located in the cleaning range of the side brush. The controller is configured to control the movement of the side brush, the main brush and the driving wheel.

[0006] The beneficial effects of the present application are: the side brush of the present application comprises a main body part and at least one cleaning part, the main body part is configured to rotate around the first axis in the working state of the cleaning robot; the cleaning part comprises a cleaning end and a fixed end connected with the main body part, the cleaning end is arranged on the fixed end and extends away from the main body part; the fixed end is curvedly extended so that the extension direction of the cleaning end forms a first included angle with the radial direction of the main body part at the connection between the fixed end and the main body part; the first included angle is greater than 0 degrees. In the above manner, the side brush comprises the main body part and at least one cleaning part, the main body part can drive the cleaning part to rotate around the first axis, and the cleaning effect of the side brush can be improved; further, the cleaning end of the cleaning part is arranged on the fixed end, and the curved extension of the fixed end can make the extension direction of the cleaning end form a first included angle with the radial direction of the main body part at the connection between the fixed end and the main body part, which can further reduce the occurrence of the situation that the long and thin objects such as hair are entangled on the cleaning end and cannot be removed, and can prolong the service life of the cleaning part. BRIEF DESCRIPTION OF DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0008] Figure 1 is a structural schematic diagram of an embodiment of the side brush of the present application;

[0009] Figure 2 is a structural schematic diagram of an embodiment of the side brush of the present application in the first working mode;

[0010] Figure 3 is a structural schematic diagram of an embodiment of the side brush of the present application in the second working mode;

[0011] Figure 4 is a structural schematic diagram of another embodiment of the side brush of the present application in the first working mode;

[0012] Figure 5 is a structural schematic diagram of another embodiment of the side brush of the present application in the second working mode;

[0013] Figure 6 is a bottom view schematic diagram of an embodiment of the cleaning robot of the present application. DETAILED DESCRIPTION

[0014] In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular architectures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application can be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known methods, devices, circuits, and

[0015] The terms "first", "second", etc. are used to distinguish different objects, rather than to describe a particular order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. It should be understood that when used in the specification and the appended claims, the term "include" indicates the presence of the described features, integers, steps, operations, elements, and / or components, but does not exclude one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should also be understood that the terminology used in the present application specification is for the purpose of describing specific embodiments only and is not intended to be limiting of the present application. As used in the specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" as used herein refers to any one or more of the associated listed items, and all possible combinations of the associated listed items, and includes the

[0016] As used in the specification and the appended claims, the term "if" can be interpreted as meaning "when" or "once" or "in response to a determination" or "in response to a detection" depending on the context. Similarly, the phrase "if determined" or "if detected [the described condition or event]" can be interpreted as meaning "once determined" or "in response to a determination" or "once detected [the described condition or event]" or "in response to a detection [the described condition or event]" depending on the context.

[0017] It should be noted that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.

[0018] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0019] The present application first proposes a side brush, as shown in Figure 1 Figure 1 is a structural schematic diagram of an embodiment of the side brush of the present application. The side brush comprises a main body part 10 and at least one cleaning part 20. The main body part 10 is configured to rotate around a first axis in a working state of a cleaning robot. The cleaning part 20 comprises a cleaning end 201 and a fixed end 202 connected with the main body part 10. The cleaning end 201 is arranged on the fixed end 202 and extends away from the main body part 10. The fixed end 202 is curvedly extended so that the extending direction of the cleaning end 201 is arranged at a first included angle A1 between the radial direction of the main body part 10 and the connecting position of the fixed end 202 and the main body part 10. The first included angle A1 is greater than 0 degrees.

[0020] Specifically, the cleaning part 20 is fixed on the main body part 10, and the main body part 10 is arranged on the cleaning robot. In the working state, the main body part 10 drives the cleaning part 20 to rotate around the first axis, and the cleaning end 201 of the cleaning part 20 contacts with the surface to be cleaned. In the rotating process, the cleaning end 201 can realize the cleaning of the surface to be cleaned.

[0021] In the working state, the cleaning end 201 of the cleaning part 20 is fixed on the main body part 10 through the fixed end 202. In an application scenario, the cleaning end 201 and the fixed end 202 are detachably connected. For example, the cleaning end 201 comprises a cleaning brush, which is detachably arranged on the fixed end 202, so as to facilitate the user to maintain and replace the cleaning brush. In another application scenario, the cleaning end 201 and the fixed end 202 are fixedly connected.

[0022] It should be noted that the first axis passes through the rotation center O of the main body part 10. The radial direction of the main body part 10 is perpendicular to the rotation axis (i.e. the first axis) of the main body part 10 and passes through the rotation center O of the main body part 10. The circumferential direction of the main body part 10 surrounds the first axis.

[0023] ​It should be noted that, since the cleaning end 201 is arranged on the fixed end 202, the extending direction of the cleaning end 201 can be changed by arranging the fixed end 202 to extend in a curved manner. In the embodiment, the main body 10 has a plurality of radial directions, and the fixed end 202 is arranged to extend in a curved manner so that the cleaning end 201 connected to the fixed end 202 is arranged to have a first included angle A1 with a first radial direction of the main body 10, where the first radial direction refers to a radial direction that can pass through the connection between the fixed end 202 and the main body 10. Therefore, the extending direction of the cleaning end 201 does not pass through the rotation center O of the main body 10. In some embodiments, the cleaning end 201 is a linear cleaning brush, and by arranging the fixed end 202 to extend in a curved manner, the extending direction of the linear cleaning brush does not pass through the rotation center O of the main body 10, i.e., the linear cleaning brush has the first included angle A1 with the first radial direction.

[0024] The first included angle A1 between the extending direction of the cleaning end 201 and the first radial direction can reduce the risk of the bristles being entangled with long objects such as hair. Specifically, this arrangement can make the force direction of the cleaning end 201 on the obstacle not parallel to the tangential direction (which is perpendicular to the first radial direction) when the cleaning end 201 contacts the obstacle, which can further reduce the risk of long objects such as hair being entangled with the cleaning end 201 and not being able to fall off, and can prolong the service life of the cleaning part 20. The following is an example.

[0025] For example, when the bending direction of the fixed end 202 and the rotation direction of the main body 10 are both clockwise, the cleaning end 201 deviates from the first radial direction by the first included angle A1 in the clockwise direction, which can make the force direction of the cleaning end 201 on the obstacle inclined towards the side close to the main body 10 relative to the tangential direction, not only reducing the force of the cleaning end 201 on the obstacle and reducing the risk of entanglement, but also making long objects such as hair more likely to fall off from other cleaning ends 201 under the action of the force, thus avoiding the phenomenon of long objects being entangled with multiple cleaning ends 201. For another example, when the fixed end 202 bends in the clockwise direction along the circumference of the main body 10, and the main body 10 rotates in the counterclockwise direction along the circumference, the cleaning end 201 deviates from the first radial direction by the first included angle A1 in the counterclockwise direction, which can make the force direction of the cleaning end 201 on the obstacle inclined towards the side away from the main body 10 relative to the tangential direction, not only reducing the force of the cleaning end 201 on the obstacle, but also making long objects such as hair more likely to fall off from the cleaning end 201 under the action of the force, and avoiding the phenomenon of long objects being entangled with multiple cleaning ends 201. Further, the reduction of the force can reduce the wear and tear of the cleaning part 20, and therefore this arrangement can prolong the service life of the cleaning part 20.

[0026] In an application scenario, the projection of the fixed end 202 of the cleaning part 20 on the rotation plane c of the main part 10 extends in a curved manner, so that on the rotation plane c of the main part 10, the projection of the cleaning end 201 of the cleaning part 20 is arranged at a first included angle A1 with the radial direction at the connection between the fixed end 202 and the main part 10.

[0027] Therefore, by the above-mentioned manner, the edge brush includes the main part 10 and at least one cleaning part 20, the main part 10 can drive the cleaning part 20 to rotate around the first axis, which can improve the cleaning effect of the edge brush; further, the cleaning end 201 of the cleaning part 20 is arranged on the fixed end 202, and the curved extension of the fixed end 202 can make the extension direction of the cleaning end 201 be arranged at the first included angle A1 with the radial direction at the connection between the fixed end 202 and the main part 10, which can further reduce the situation that the hair and other elongated objects are entangled on the cleaning end 201 and cannot be removed, and can prolong the service life of the cleaning part 20.

[0028] In some embodiments, the edge brush includes at least two cleaning parts 20, the fixed ends 202 of the at least two cleaning parts 20 are arranged along the circumference of the main part 10, and the line between the fixed ends 202 of the two cleaning parts 20 farthest away along the circumference and the rotation center of the main part 10 is arranged at a second included angle A2, and the second included angle A2 is less than or equal to 180 degrees.

[0029] The second included angle A2 can be 15 degrees, 40 degrees, 55 degrees, 80 degrees, 100 degrees, 125 degrees, 130 degrees, 140 degrees, 145 degrees, 150 degrees, 159 degrees, 160 degrees, 170 degrees, 177 degrees, or 180 degrees, etc., without specific limitation.

[0030] The fixed ends 202 of the cleaning parts 20 are arranged along the circumference of the main part 10, the line between the fixed ends 202 of the two cleaning parts 20 farthest away along the circumference and the rotation center of the main part 10 is arranged at a second included angle A2, and the second included angle A2 is less than or equal to 180 degrees, which can reduce the spacing between the multiple cleaning ends 201 arranged on the multiple fixed ends 202, thus reducing the situation that the hair and other elongated objects are entangled between the multiple cleaning ends 201, improving the anti-entanglement effect of the edge brush, and further improving the convenience of cleaning and maintaining the cleaning part 20.

[0031] By the above manner, the fixed ends 202 of the plurality of cleaning parts 20 are arranged along the circumferential direction of the main body part 10, the main body part 10 can drive the plurality of cleaning parts 20 to rotate around the first axis, and the cleaning effect of the side brush can be improved; further, the second included angle A2 between the line connecting the fixed ends 202 of the two cleaning parts 20 farthest away from each other along the circumferential direction of the main body part 10 and the rotation center of the main body part 10 is less than or equal to 180 degrees, which can reduce the distance between the plurality of cleaning ends 201 arranged on the plurality of fixed ends 202, thereby reducing the possibility of entanglement of hair and other elongated objects between the plurality of cleaning ends 201, improving the anti-entanglement effect of the side brush, and improving the convenience of cleaning and maintaining the cleaning parts 20.

[0032] In some embodiments, the cleaning end 201 of the cleaning part 20 is inclined towards the side of the main body part 10 close to the surface to be cleaned, facilitating cleaning of the surface to be cleaned.

[0033] In some embodiments, the fixed ends 202 of all cleaning parts 20 of the side brush are curved in the first direction along the circumferential direction, and the first direction is the rotation direction of the main body part 10.

[0034] Referring to Figure 1 As shown, the first direction can be the second direction x1, and can also be the third direction x2. Specifically, the fixed ends 202 of the cleaning parts 20 are curved in the same direction, for example, in an application scenario, the rotation direction of the main body part 10 is clockwise rotation along the circumferential direction, and the fixed ends 202 of all cleaning parts 20 are arranged to be curved in the clockwise direction along the circumferential direction, so that the corresponding cleaning end 201 deviates from the radial first included angle A1 of the main body part 10 at the connection between the fixed end 202 and the main body part 10 in the clockwise direction, which can make the force direction of the cleaning end 201 on the obstacle inclined towards the side close to the main body part 10 relative to the tangential direction, not only reducing the force of the cleaning end 201 on the obstacle, but also making the hair and other elongated objects more easily fall off under the action of the force, thereby avoiding the phenomenon of entanglement of the elongated objects with the plurality of cleaning ends 201.

[0035] In some embodiments, the extension direction of all cleaning ends 201 can be arranged to be the same as the first included angle A1 between the main body part 10 and the corresponding fixed end 202 and the main body part 10 at the connection, and the same bending angle of the fixed end 202 can be achieved, which can simplify the structure design and improve the production convenience.

[0036] In other embodiments, the bending directions of different fixed ends can also be different, which are not limited.

[0037] In some embodiments, the first included angle A1 is 20 to 60 degrees.

[0038] For example, the first included angle A1 can be 20 degrees, 23 degrees, 25 degrees, 30 degrees, 36 degrees, 40 degrees, 45 degrees, 49 degrees, 50 degrees, 51 degrees, 55 degrees, 58 degrees, 60 degrees, etc.

[0039] The value of the first included angle A1 can affect the force direction and force size of the cleaning end 201 on the obstacle. Setting the first included angle A1 to 20 degrees to 60 degrees can improve the anti-winding effect.

[0040] In some embodiments, the first included angle A1 is 30 degrees to 40 degrees.

[0041] For example, the first included angle A1 can be 30 degrees, 31 degrees, 32 degrees, 34 degrees, 35 degrees, 35.5 degrees, 37 degrees, 38 degrees, 39 degrees, 40 degrees, etc.

[0042] The value of the first included angle A1 can affect the force direction and force size of the cleaning end 201 on the obstacle. If the value of the first included angle A1 is too large, the cleaning range and cleaning effect of the edge brush will be reduced; if the value of the first included angle A1 is too small, the contribution to the anti-winding effect is small. Setting the first included angle A1 to 30 degrees to 40 degrees can further improve the anti-winding effect and improve the cleaning effect of the edge brush.

[0043] In some embodiments, the second included angle A2 is less than or equal to 120 degrees.

[0044] For example, the value of the second included angle A2 can be 10 degrees, 21 degrees, 30 degrees, 39 degrees, 45 degrees, 50 degrees, 55 degrees, 58 degrees, 60 degrees, 66 degrees, 69 degrees, 70 degrees, 72 degrees, 80 degrees, 90 degrees, 95 degrees, 100 degrees, 105 degrees, 110 degrees, 120 degrees, etc.

[0045] The smaller the value of the second included angle A2, the smaller the spacing between the plurality of cleaning ends 201 provided on the plurality of fixed ends 202, and the less likely that the hair and other elongated objects will be entangled between the plurality of cleaning ends 201; the larger the value of the second included angle A2, the better the cleaning effect of the edge brush. Preferably, the second included angle A2 is set to 120 degrees, which can improve the cleaning effect of the edge brush and reduce the occurrence of the hair and other elongated objects being entangled between the plurality of cleaning ends 201, improve the anti-winding effect of the edge brush, and thus improve the convenience of cleaning and maintaining the cleaning part 20.

[0046] In some embodiments, as shown in FIG. 1A, the at least one cleaning part 20 of the edge brush includes at least one first cleaning branch 22, and the fixed end 222 of the first cleaning branch 22 is movably connected with the main body part 10. Figures 2 to 5

[0047] The above arrangement can realize the rotation of the first cleaning branch 22 with the rotation of the main body part 10, and improve the flexibility and multi-scene applicability of the edge brush.​

[0048] The application further provides a side brush for cleaning robots, as shown in Figures 2 to 5 Figure 2 is a structural schematic diagram of an embodiment of the side brush in the first working mode according to the application; Figure 3 is a structural schematic diagram of an embodiment of the side brush in the second working mode according to the application; Figure 4 is a structural schematic diagram of another embodiment of the side brush in the first working mode according to the application; Figure 5 is a structural schematic diagram of another embodiment of the side brush in the second working mode according to the application. The side brush comprises at least one cleaning part 20, which comprises a second cleaning branch 21 and at least one first cleaning branch 22. The specific structure of the second cleaning branch 21 and the first cleaning branch 22 can refer to the cleaning part in any of the above embodiments, which will not be described here. Among them, the fixed end 212 of the second cleaning branch 21 corresponds to the fixed end of the cleaning part in the above embodiments, and the cleaning end 211 of the second cleaning branch 21 corresponds to the cleaning end of the cleaning part in the above embodiments; the fixed end 222 of the first cleaning branch 22 corresponds to the fixed end of the cleaning part in the above embodiments, and the cleaning end 221 of the first cleaning branch 22 corresponds to the cleaning end of the cleaning part in the above embodiments.

[0049] Among them, the fixed end 212 of the second cleaning branch 21 is fixedly connected with the main body part 10; the fixed end 222 of the first cleaning branch 22 is movably connected with the main body part 10; when the main body part 10 rotates in the second direction x1, the included angle B between the second cleaning branch 21 and the first cleaning branch 22 is a third included angle, which is less than or equal to 180 degrees; when the rotation direction of the main body part 10 changes, the first cleaning branch 22 moves close to or away from the second cleaning branch 21 under the action of inertia or external force, so that when the main body part 10 rotates in the third direction x2, the included angle B between the second cleaning branch 21 and the first cleaning branch 22 decreases to a fourth included angle, which is 0-15 degrees.

[0050] Among them, the fixed end 212 of the second cleaning branch 21 is fixedly connected with the main body part 10, and the rotation center of the second cleaning branch 21 is determined as the rotation center O of the main body part 10, and the rotation axis thereof is the first axis; the fixed end 222 of the first cleaning branch 22 is movably connected with the main body part 10, and the rotation axis of the first cleaning branch 22 is the second axis, and the relationship between the first axis and the second axis is not limited here.

[0051] ​It should be noted that the included angle B between the second cleaning branch 21 and the first cleaning branch 22 refers to the included angle between the first projection of the connecting line between the fixed end 212 of the second cleaning branch 21 and the rotation center thereof on the rotation plane c of the main body 10 and the second projection of the connecting line between the fixed end 222 of the first cleaning branch 22 and the rotation center thereof on the rotation plane c of the main body 10. For example, in an application scenario, as shown in FIGS. 11 and 12, the first axis passes through the rotation center O of the main body 10 perpendicularly to the rotation plane c, and the second axis passes through the rotation center P of the fixed end of the first cleaning branch 22 perpendicularly to the rotation plane c. The included angle B between the second cleaning branch 21 and the first cleaning branch 22 refers to the included angle between the first projection of the connecting line between the fixed end 212 of the second cleaning branch 21 and the rotation center O thereof on the rotation plane c of the main body 10 and the second projection of the connecting line between the fixed end 222 of the first cleaning branch 22 and the rotation center P thereof on the rotation plane c of the main body 10. Figure 2 、 Figure 3 The first axis passes through the rotation center O of the main body 10 perpendicularly to the rotation plane c, and the second axis passes through the rotation center P of the fixed end of the first cleaning branch 22 perpendicularly to the rotation plane c. The included angle B between the second cleaning branch 21 and the first cleaning branch 22 refers to the included angle between the first projection of the connecting line between the fixed end 212 of the second cleaning branch 21 and the rotation center O thereof on the rotation plane c of the main body 10 and the second projection of the connecting line between the fixed end 222 of the first cleaning branch 22 and the rotation center P thereof on the rotation plane c of the main body 10.

[0052] The second direction x1 and the third direction x2 are two rotation directions opposite in direction around the first axis. When the second direction x1 is the clockwise direction, the third direction x2 is the counterclockwise direction; when the second direction x1 is the counterclockwise direction, the third direction x2 is the clockwise direction. The fourth included angle is smaller than the third included angle.

[0053] The second cleaning branch 21 is fixedly connected to the main body 10, and the first cleaning branch 22 is movably connected to the main body 10, so that the second cleaning branch 21 can be rotated by the main body 10 to change the included angle B between the second cleaning branch 21 and the first cleaning branch 22.

[0054] For example, in an application scenario, the side brush includes at least two working modes. The first working mode is a normal cleaning mode, and the second working mode is a mode for removing entangled hair, which can also be referred to as a hair-removing mode.

[0055] In the first working mode, the main body 10 rotates in the second direction x1, and the brush is unfolded. At this time, the included angle B between the second cleaning branch 21 and the first cleaning branch 22 remains unchanged and is a third included angle, that is, the second cleaning branch 21 and the first cleaning branch 22 keep a third included angle and rotate together with the main body 10 around the first axis in the second direction x1. In some embodiments, the third included angle ranges from 0 to 180 degrees, for example, can be 15 degrees, 30 degrees, 60 degrees, 70 degrees, 95 degrees, 100 degrees, 103 degrees, 110 degrees, 125 degrees, 130 degrees, 138 degrees, 140 degrees, 145 degrees, 150 degrees, 159 degrees, 160 degrees, 163 degrees, 170 degrees, 177 degrees or 180 degrees, etc., that is, the second cleaning branch 21 and the first cleaning branch 22 are connected to the main body 10 at a distance from each other, which facilitates to improve the cleaning effect and cleaning range of the brush.

[0056] In the second working mode, the main body 10 rotates in the third direction x2, and the brush is folded. The included angle B between the second cleaning branch 21 and the first cleaning branch 22 remains unchanged and is a fourth included angle, and the second cleaning branch 21 and the first cleaning branch 22 keep a fourth included angle and rotate together with the main body 10 around the first axis in the third direction x2. The fourth included angle ranges from 0 to 15 degrees, for example, can be 0 degrees, 3 degrees, 5 degrees, 8 degrees, 10 degrees, 11 degrees, 13 degrees or 15 degrees, etc.

[0057] The two working modes can be switched by controlling the main body 10 to change the rotation direction. When the rotation direction of the main body 10 changes, the first cleaning branch 22 moves towards or away from the second cleaning branch 21 under the action of inertia or external force, thereby changing the included angle B between the second cleaning branch 21 and the first cleaning branch 22, so as to realize the switching of the two working modes. The following is an example.

[0058] For example, referring to Figures 2 to 5 When the rotation direction of the main body 10 changes from the second direction x1 to the third direction x2, the first cleaning branch 22 moves towards the second cleaning branch 21 under the action of inertia, so the included angle B between the first cleaning branch 22 and the second cleaning branch 21 starts to decrease, until it decreases to the fourth included angle, and then the included angle B between the first cleaning branch 22 and the second cleaning branch 21 is fixed as the fourth included angle, that is, the brush exits the first working mode and enters the second working mode, and the brush is folded. For another example, when the rotation direction of the main body 10 changes from the third direction x2 to the second direction x1, the first cleaning branch 22 moves away from the second cleaning branch 21 under the action of inertia, so the included angle B between the first cleaning branch 22 and the second cleaning branch 21 starts to increase, until it increases to the third included angle, and then the included angle B between the first cleaning branch 22 and the second cleaning branch 21 is fixed as the third included angle, that is, the brush exits the second working mode and enters the first working mode, and the brush is unfolded.

[0059] The external force acting on the first cleaning branch 22 to make it close to or away from the second cleaning branch 21 can be a resistance from the surface to be cleaned or from the main body 10, which can be passively or actively applied. For example, the main body 10 includes a limiting groove, the inner surface of which abuts against the fixed end 222 of the first cleaning branch 22 to provide the above-mentioned resistance; for another example, in other application scenarios, the main body 10 includes a limiting column, and the fixed end 222 of the first cleaning branch 22 is provided with a limiting hole, the limiting column abutting against the hole wall of the limiting hole to provide the above-mentioned resistance.

[0060] It should be noted that the specific working mode of the side brush in the working state is not limited. For example, in an application scenario, the side brush alternately performs the first working mode and the second working mode in the working state to clean the surface to be cleaned; for another example, the side brush works in the first working mode or the second working mode in the working state; for another example, the side brush works in the first working mode in the working state, and after the cleaning task is completed, the main body 10 of the side brush can be controlled to change the rotation direction, i.e., from the second direction x1 to the third direction x2, so that the included angle B between the first cleaning branch 22 and the second cleaning branch 21 is reduced to a fourth included angle, and then the main body 10 of the side brush is controlled to stop rotating, i.e., the side brush can be folded by changing the rotation direction of the main body 10, thereby facilitating the removal of the entanglements such as hair entangled on the side brush.

[0061] The above-mentioned arrangement can control the included angle B between the second cleaning branch 21 and the first cleaning branch 22 by controlling the rotation direction of the main body 10, so as to realize the automatic unfolding and folding of the side brush. For example, the second cleaning branch 21 and the first cleaning branch 22 can be kept at the third included angle and rotate around the first axis with the main body 10 in the second direction x1, so that the side brush works in the first working mode, and the second cleaning branch 21 and the first cleaning branch 22 can be arranged apart from each other, realizing the unfolding of the side brush and improving the cleaning effect; further, changing the rotation direction of the main body 10 can also make the second cleaning branch 21 and the first cleaning branch 22 keep the fourth included angle and rotate around the first axis with the main body 10 in the third direction x2, i.e., the side brush can be switched to work in the second working mode, realizing the folding of the side brush. Therefore, the above-mentioned arrangement can make the side brush alternately perform the above-mentioned two working modes to clean the surface to be cleaned, which can improve the cleaning effect, reduce the risk of the side brush being entangled with hair, wires and other slender objects, and improve the user experience.

[0062] In some embodiments, the first cleaning support 22 is pivotally connected to the main body 10 about a second axis. Specifically, when the rotation direction of the main body 10 is the second direction x1, the first cleaning support 22 rotates with the main body 10 around the first axis; for example, when the rotation direction of the main body 10 changes from the second direction x1 to the third direction x2, the first cleaning support 22, under the action of inertia or external force, first rotates relative to the main body 10 around the second axis to approach the second cleaning support 21, until the included angle B between the first cleaning support 22 and the second cleaning support 21 decreases to the fourth included angle and remains fixed (for example, the first cleaning support 22 rotates relative to the main body 10 until it abuts against the main body 10), and then the first cleaning support 22... The first cleaning branch 22 rotates around the first axis in a third direction x2 along with the main body 10; for example, when the rotation direction of the main body 10 changes from the third direction x2 to the second direction x1, the first cleaning branch 22 first rotates around the second axis relative to the main body 10 to move away from the second cleaning branch 21 under the action of inertia or external force, until the included angle B between the first cleaning branch 22 and the second cleaning branch 21 increases to the third included angle and remains unchanged (for example, the first cleaning branch 22 rotates relative to the main body 10 until it abuts against the main body 10 again), and then the first cleaning branch 22 rotates around the first axis in the first direction along with the main body 10.

[0063] In one application scenario, refer to Figure 2 , Figure 3 The first axis is parallel to the second axis and does not coincide. The first axis is perpendicular to the rotation plane c and passes through the rotation center O of the main body 10. The second axis is perpendicular to the rotation plane c and passes through the rotation center P of the fixed end 222 of the first cleaning branch 22.

[0064] Setting a second axis makes it easier to make the included angle B between the second cleaning branch 21 and the first cleaning branch 22 reach 0 degrees, which can further improve the effect of preventing hair and other long and thin objects from getting tangled and removing hair that has already gotten tangled on the side brush.

[0065] In other embodiments, see Figure 4 , Figure 5 The second axis and the first axis can also be set to coincide. The second cleaning support 21 and the first cleaning support 22 can be arranged on the first axis. That is, it can be understood that the second cleaning support 21 and the first cleaning support 22 are at different heights on the first axis, and the included angle B between the second cleaning support 21 and the first cleaning support 22 can reach 0 degrees.

[0066] In some embodiments, a limiting post is provided on the main body 10, and the fixed end 222 of the first cleaning branch 22 is movably connected to the limiting post. When the rotation direction of the main body 10 changes, the first cleaning branch 22 rotates around the limiting post under the action of inertia.

[0067] The movable connection is achieved by setting the limiting column, and the position of the second axis is adjusted by setting the position of the limiting column.

[0068] In some embodiments, a limiting slot is arranged on the main body 10, and the limiting slot is configured to limit the movement of the first cleaning branch 22 relative to the main body 10, so that the included angle B between the second cleaning branch 21 and the first cleaning branch 22 changes between the third included angle and the fourth included angle.

[0069] The movable restriction of the first cleaning branch 22 is achieved by using the limiting slot, so that when the first cleaning branch 22 moves close to or away from the second cleaning branch 21 under the action of inertia when the main body 10 changes the rotation direction, the first cleaning branch 22 can be limited to move in the limiting slot, thereby achieving control of the included angle B between the second cleaning branch 21 and the first cleaning branch 22, and the setting structure is simple and convenient to assemble.

[0070] In some embodiments, referring to Figures 4 to 5 The edge brush includes one second cleaning branch 21 and two or more first cleaning branches 22. It should be noted that the relationship between the included angle B between each first cleaning branch 22 and the second cleaning branch 21 can be referred to the above embodiments, which will not be repeated here.

[0071] Specifically, by changing the rotation direction of the main body 10, the plurality of first cleaning branches 22 can move close to or away from the second cleaning branch 21, achieving the folding and unfolding of the edge brush.

[0072] In some embodiments, different first cleaning branches 22 are pivotally connected to the main body 10 with different second axes as pivot axes.

[0073] In some embodiments, the plurality of different second axes are parallel to each other and do not coincide. This can make the included angle between the second cleaning branch 21 and the plurality of first cleaning branches 22 be 0 degrees in the folded state of the edge brush, so as to improve the effect of preventing the entanglement of elongated objects.

[0074] In some embodiments, the plurality of different second axes are parallel to each other and coincide. In the case where the first axis and the plurality of second axes all coincide, the included angle between the second cleaning branch 21 and the plurality of first cleaning branches 22 can also be 0 degrees in the folded state of the edge brush. For details, refer to the above embodiments for improvement, which will not be repeated here.

[0075] In other embodiments, a stepped limiting slot (not shown in the figure) is arranged on the main body, which is used to limit the movement of the plurality of different first cleaning branches, so as to achieve the unfolding and folding of the edge brush.

[0076] In some embodiments, when the side brush comprises one second cleaning branch 21 and a plurality of first cleaning branches 22, the included angle B between the first cleaning branch 22 farthest from the second cleaning branch 21 along the circumferential direction of the main body 10 and the second cleaning branch 21 in the unfolded state of the side brush can refer to the second included angle of the above-mentioned embodiments, which will not be repeated here.

[0077] This arrangement can reduce the spacing between the plurality of first cleaning branches 22 and the second cleaning branch 21, and reduce the risk of the side brush winding around hair and other elongated objects.

[0078] In other embodiments, a plurality of groups of second cleaning branches and first cleaning branches can also be provided, and by changing the rotation direction of the main body, a plurality of groups of unfolding and folding can be achieved.

[0079] In other embodiments, similar improvements can also be made to the side brush, which will not be repeated here.

[0080] The present application further proposes a cleaning robot, such as Figure 6 as shown, Figure 6 is a bottom view of an embodiment of the cleaning robot of the present application. The cleaning robot comprises a body 30, a side brush 100 of any of the above-mentioned embodiments, a main brush, a drive wheel, and a controller, wherein the side brush 100 is arranged at the bottom edge of the body 30; the main brush is arranged at the bottom of the body 30, and the cleaning range of the side brush 100 at least partially overlaps the cleaning range of the main brush; the drive wheel is used to drive the body 30 to move, and at least partially located in the cleaning range of the side brush 100; and the controller is configured to control the movement of the side brush 100, the main brush, and the drive wheel.

[0081] The side brush 100 comprises a main body 10 and a cleaning part 20, and the specific embodiments and working principles of the side brush 100 can refer to the above-mentioned embodiments, which will not be repeated here.

[0082] The specific embodiments and working principles of the side brush 100 can refer to the above-mentioned embodiments, which will not be repeated here.

[0083] The cleaning robot of the present application comprises a sweeping robot, a sweeping and mopping integrated robot, a washing robot, etc.

[0084] The side brush 100 is arranged at the bottom edge of the body 30, and the main brush is arranged at the bottom of the body 30, which facilitates improving the cleaning effect of the bottom edge and the bottom of the body 30; the cleaning range of the side brush 100 at least partially overlaps the cleaning range of the main brush, which facilitates strengthening the cleaning effect of the overlapping area, so that the hair wound on the side brush 100 is more easily sucked into the dust box inside the cleaning robot through the interference with the main brush, thereby achieving the effect of removing the wound hair; and the drive wheel is at least partially located in the cleaning range of the side brush 100, which can make the side brush 100 clean the moving traces left by the drive wheel driving the body 30 to move, thereby improving the user experience.

[0085] In some embodiments, the cleaning end 201 of the cleaning part 20 is arranged away from the front end of the body 30 relative to the fixed end 202 of the cleaning part 20 when the side brush 100 is in the non-working state.

[0086] Specifically, when the cleaning robot is in the process of obstacle crossing, stopping, stepping up, climbing, carpet climbing, etc., the side brush 100 can be controlled to be in the non-working state. Arranging the cleaning end 201 of the cleaning part 20 away from the front end of the body 30 relative to the fixed end 202 can reduce the risk of the cleaning end 201 of the cleaning part 20 being bristled due to friction with the surface to be cleaned during the process of obstacle crossing, stepping up, climbing, carpet climbing, etc. of the cleaning robot, and improve the service life of the cleaning part 20.

[0087] In some application scenarios, the front end of the body 30 can be determined based on the moving direction of the cleaning robot. For example, the controller controls the driving wheel to move, the controller determines the relative position of the front end and the rear end of the body 30 based on the moving direction of the driving wheel at the next moment, and the controller controls the main body part 10 to rotate so that the cleaning end 201 of the cleaning part 20 is arranged away from the front end of the body 30 relative to the fixed end 202.

[0088] In some embodiments, the side brush 100 is arranged at the right front edge of the body 30, and the first axis is inclined upward relative to the surface to be cleaned and inclined toward the right front of the body 30.

[0089] Specifically, when the cleaning robot is viewed from above, the side brush 100 is arranged at the right front edge of the body 30, and the first axis is inclined upward relative to the surface to be cleaned and inclined toward the right front of the body 30, so that the right front side brush 100 is inclined toward the right front of the body 30 to achieve internal buckling, which can improve the cleaning intensity at the right front edge of the body 30.

[0090] In other embodiments, the side brush 100 can also be arranged at the right front edge and the left front edge of the body 30 of the cleaning robot.

[0091] In an application scenario, the upper end of the first axis of the right front edge and the left front edge of the side brush 100 is inclined away from the body 30 relative to the vertical direction, i.e. the left front side brush 100 is inclined toward the left front of the body 30 to achieve internal buckling, and the right front side brush 100 is inclined toward the right front of the body 30 to achieve internal buckling. This arrangement can improve the cleaning intensity of the side brush 100 at the left front edge and the right front edge of the body 30.

[0092] In some embodiments, the included angle between the first axis and the vertical direction is 5 to 10 degrees in the working state of the cleaning robot.

[0093] For example, the included angle is 5 degrees, 6 degrees, 8 degrees, 9 degrees or 10 degrees, and the included angle between the first axis and the vertical direction is 5 to 10 degrees, so that the cleaning part 20 of the side brush 100 is inclined at a corresponding angle with the horizontal plane in the working state, and the cleaning end of the cleaning part 20 is inclined at a corresponding angle with the horizontal plane, so that the cleaning force and cleaning effect of the cleaning part 20 on the surface to be cleaned are improved, for example, when the surface to be cleaned is uneven, this setting can effectively improve the cleaning effect of the cleaning part 20 on the low-lying place.

[0094] In other embodiments, the included angle can also be set to other degrees, such as 3 degrees or 12 degrees, 15 degrees, etc.

[0095] Unlike the prior art, the side brush of the present application comprises a main body part and at least one cleaning part, the main body part is configured to rotate around the first axis in the working state of the cleaning robot; the cleaning part comprises a cleaning end and a fixed end connected to the main body part, the cleaning end is arranged on the fixed end and extends away from the main body part; the fixed end is curved to extend so that the extension direction of the cleaning end forms a first included angle with the radial direction of the main body part through the connection between the fixed end and the main body part; the first included angle is greater than 0 degrees. By the above-mentioned manner, the side brush comprises a main body part and at least one cleaning part, the main body part can drive the cleaning part to rotate around the first axis, and the cleaning effect of the side brush can be improved; further, the cleaning end of the cleaning part is arranged on the fixed end, and the curved extension of the fixed end can make the extension direction of the cleaning end form a first included angle with the radial direction of the main body part through the connection between the fixed end and the main body part, which can further reduce the occurrence of the situation that the hair and other elongated objects are entangled on the cleaning end and cannot be removed, and can prolong the service life of the cleaning part.

[0096] It is worth noting that the drawings in this paper are only used to show the structural relationship and connection relationship of the product of the present application, and do not limit the specific structure size of the product of the present application.

[0097] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A side brush characterized in that, include: The main body is configured to rotate about a first axis when the cleaning robot is in operation. At least one cleaning part, the cleaning part including a cleaning end and a fixed end connected to the main body, the cleaning end being disposed on the fixed end and extending in a direction away from the main body; the fixed end extending in a curved manner such that the extending direction of the cleaning end is set at a first angle with the radial direction of the main body through the connection point between the fixed end and the main body; the first angle is greater than 0 degrees.

2. The edge brush of claim 1, wherein The side brush includes at least two cleaning parts, the fixed ends of the at least two cleaning parts are arranged circumferentially along the main body, and the line connecting the two fixed ends of the cleaning parts that are farthest apart along the circumferential direction and the rotation center of the main body is set at a second included angle, the second included angle being less than or equal to 180 degrees.

3. The edge brush of claim 1, wherein, The fixed ends of at least one cleaning part are all bent in a first direction along the circumference of the main body, the first direction being the rotation direction of the main body.

4. The edge brush of claim 1, wherein, The first included angle is between 20 degrees and 60 degrees.

5. The edge brush of claim 4, wherein, The first included angle is 30 to 40 degrees.

6. The edge brush of claim 2, wherein, The second included angle is less than or equal to 120 degrees.

7. The edge brush of claim 1, wherein, The at least one cleaning unit includes: At least one first cleaning branch, the fixed end of which is movably connected to the main body.

8. The edge brush of claim 7, wherein, The at least one cleaning unit also includes: The second cleaning branch has its fixed end fixedly connected to the main body. When the main body rotates in the second direction, the angle between the second cleaning branch and the first cleaning branch is a third angle, which is less than or equal to 180 degrees. When the rotation direction of the main body changes, the first cleaning branch moves closer to or further away from the second cleaning branch under the action of inertia or external force, so that when the main body rotates in the third direction, the angle between the second cleaning branch and the first cleaning branch decreases to a fourth angle, which is 0 to 15 degrees.

9. The edge brush of claim 8, wherein, The first cleaning branch is pivotally connected to the main body about the second axis; the first axis is parallel to and does not coincide with the second axis; the main body is provided with a limiting groove, which is configured to restrict the movement of the first cleaning branch relative to the main body, so that the included angle between the second cleaning branch and the first cleaning branch varies between the third included angle and the fourth included angle.

10. A cleaning robot, characterized in that, include: ontology; The side brush according to any one of claims 1 to 9, wherein the side brush is disposed at the bottom edge of the body; The main brush is located at the bottom of the body, and the cleaning range of the side brushes at least partially overlaps with the cleaning range of the main brush. A drive wheel, the drive wheel being used to move the main body and being at least partially within the cleaning range of the side brush; and A controller configured to control the movement of the side brush, the main brush, and the drive wheel. 11.The cleaning robot according to claim 10, wherein, When the side brush is not in operation, the cleaning end of the cleaning part is positioned away from the front end of the main body relative to the fixed end of the cleaning part.

12. The cleaning robot of claim 10, wherein, The side brush is located at the front right edge of the body, and the first axis is inclined upward relative to the surface to be cleaned and towards the front right of the body.

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