Cleaning brushes and automatic cleaning equipment

Abstract

The present disclosure provides a cleaning brush and an automatic cleaning device, the cleaning brush including a shaft having a shaft body and a first end portion located on one side of the shaft body, and a first end member arranged to be attached to the first end portion, the first end member having at least one first introduction portion, the first end member having at least one first mating portion, the at least one first introduction portion and the at least one first mating portion matching to form a guide mating structure, so that the first end member can only be attached to the first end portion by one circumferential assembly method.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This disclosure claims priority to Chinese Patent Application No. 202223603508X filed on December 30, 2022, the disclosure of which is incorporated herein by reference in its entirety. [Technical Field]

[0002] FIELD OF THE DISCLOSURE The present disclosure relates to the field of self-propelled equipment, and in particular to cleaning brushes and automatic cleaning equipment. [Background technology]

[0003] The cleaning brush is an important functional component of an automatic cleaning device. The end cap of a conventional cleaning brush is relatively small in size, and a longer portion of the end of the cleaning brush shaft is exposed from the outside of the end cap. The end cap is also located outside the tubular member that is fitted onto the outer periphery of the cleaning brush shaft cap, making it easier for the wrapping material to be wound onto the tubular member from the end of the tubular member to the end of the shaft. Summary of the Invention

[0004] Some embodiments of the present disclosure provide a cleaning brush, the cleaning brush comprising: a shaft including a shaft body and a first end located on one side of the shaft body; a first end member arranged to be attached to the first end; The first end member has at least one first introduction portion, and the first end has at least one first fitting portion, and the at least one first introduction portion and the at least one first fitting portion match to form a guide fitting structure, so that the first end member can only be attached to the first end by one circumferential assembly method.

[0005] In some embodiments, the at least one first introducer includes two first introducers, and at least one of the shapes and sizes of the two first introducers is different, such that the first end member can be attached to the first end member in only one circumferential assembly method.

[0006] In some embodiments, the shaft includes a second end located on the other side of the shaft body; a second end member arranged to be attached to the second end and having a second assembly structure on a side remote from the shaft; The second end member has at least one second lead-in portion, and the second end has at least one second mating portion, and the at least one second lead-in portion and the at least one second mating portion match to form a guide mating structure, so that the second end member can be attached to the second end in a plurality of circumferential assembly methods.

[0007] In some embodiments, the at least one second introducer includes two second introducers, and the two second introducers have the same shape and size, thereby allowing the second end member to be attached to the second end member in two circumferential assembly methods.

[0008] In some embodiments, the sizes of the two first lead-ins are different and the size of the two second lead-ins is between the sizes of the two first lead-ins.

[0009] In some embodiments, the first end member includes a first guide sleeve, the first guide sleeve is arranged to receive the first end, and the at least one first lead-in portion is disposed on an inner peripheral wall of the first guide sleeve; The at least one first fitting portion is disposed on the outer periphery of the first end portion and corresponds one-to-one with the at least one first introduction portion.

[0010] In some embodiments, the first end member has a first assembly structure on a side thereof away from the shaft, and the at least one first lead-in portion extends spirally around the circumference of the first guide sleeve in a direction away from the first assembly structure.

[0011] In some embodiments, one of the first introduction portion and the first fitting portion is a protrusion, and the other is a recess.

[0012] In some embodiments, a marking portion is provided on the outer periphery of the first guide sleeve, and the marking portion is arranged to mark the position of the first introduction portion on the outer periphery of the guide sleeve so that the first introduction portion is aligned with the first mating portion when assembled.

[0013] In some embodiments, a first locking portion is provided on the first guide sleeve, and a first locking matching portion is provided on the first end, and the first locking portion engages with the first locking matching portion to lock the first end member to the first end.

[0014] In some embodiments, the first end member further includes a first guide shaft, the first guide shaft extending along an axis of the first guide sleeve; A first guide hole is provided on the end face of the first end away from the second end, and the first guide hole is coaxial with the shaft and is arranged to accommodate the first guide shaft.

[0015] In some embodiments, the cleaning brush further includes a brush member disposed coaxially with the shaft, the brush member comprising: a cylindrical member fitted onto the outer periphery of the shaft; The brush components extend from the outer surface of the cylindrical member in a direction away from the cylindrical member and are uniformly arranged along the circumferential direction of the cylindrical member.

[0016] In some embodiments, the first end member has a first assembly structure on a side facing away from the shaft, and the end surface of the first assembly structure facing away from the shaft has a regular polygon that is a divisor of the number of brush components.

[0017] In some embodiments, a flexible filler is filled between the brush member and the shaft, and the flexible filler covers the outer periphery of the shaft body and exposes the first end and the second end.

[0018] In some embodiments, the first end member has a first assembly structure on a side thereof away from the shaft, and the first end member further includes a first blocking structure disposed between the first assembly structure and the first guide sleeve to prevent the wrapping from excessively extending away from the brush member.

[0019] In some embodiments, the first end member has a first assembly structure on a side thereof remote from the shaft, the first assembly structure including a transmission structure, and the second assembly structure including a bearing structure.

[0020] Some embodiments of the present disclosure provide an automatic cleaning device that includes the cleaning brush described in the previous embodiments.

[0021] The above solution of the embodiments of the present disclosure can have the following beneficial effects: The cleaning brush of the present disclosure has a unique circumferential assembly method for the lead-in member of the drive end, ensuring that the drive end has a relatively fixed installation direction and contributing to the controllability of the installation angle of the roller brush. This is particularly useful in some situations where there are certain pre-set requirements for the orientation or alignment direction of the roller brush sub-members, especially the blades, such as when two roller brushes of the present disclosure are used to form a double brush system and there are certain alignment requirements for their respective blades. At the same time, the clever installation of an intermediate-sized lead-in structure on the driven side not only ensures that the overall appearance of the members on both ends is close, but also reliably and effectively achieves foolproofing and achieves mutual foolproofing in a very simple way, greatly improving the user experience.

[0022] [Brief explanation of the drawings]

[0023] The drawings herein are incorporated into the specification and constitute a part of this specification, show embodiments corresponding to the present disclosure, and are used in conjunction with the specification to explain the principles of the present disclosure. Of course, the drawings described below are merely some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without any creative effort. [Figure 1] 1 is a structural schematic diagram of an automatic cleaning device according to an exemplary embodiment of the present disclosure; [Figure 2] FIG. 2 is a schematic diagram of the bottom structure of the automatic cleaning device in FIG. [Figure 3] 1 is an exploded view of the three-dimensional structure of an example cleaning brush provided by the present disclosure. FIG. [Figure 4] 4 is a three-dimensional structural view of an example of a first end member of the cleaning brush of FIG. 3. FIG. [Figure 5] 4 is an exploded view of the local structure of the first end member and shaft of the cleaning brush of FIG. 3 from one angle. [Figure 6]4 is an exploded view of the local structure of the first end member and shaft of the cleaning brush of FIG. 3 from another angle. [Figure 7] 4 is an exploded view of the three-dimensional structure of the cleaning brush of FIG. 3 from another angle. FIG. [Figure 8] 4 is an exploded view of the local structure of the second end member and shaft of the cleaning brush of FIG. 3 from one angle. DETAILED DESCRIPTION OF THE INVENTION

[0024] In order to clarify the technical solutions and technical effects of the present disclosure, the present disclosure will be described in more detail below with reference to the drawings, but of course, the described embodiments are only a part of the embodiments of the present disclosure, and do not represent all of the embodiments. All other embodiments that can be obtained by a person skilled in the art based on the embodiments of the present disclosure without any creative work are also within the scope of protection of the present disclosure.

[0025] The terms used in the embodiments of the present disclosure are merely for the purpose of describing particular embodiments and are not intended to limit the present disclosure. As used in the embodiments of the present disclosure and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms unless the context clearly indicates otherwise, and "plurality" generally includes at least two.

[0026] As will be understood, the term "and / or" as used herein merely describes the relation between related objects, and indicates that three types of relations may exist, for example, A and / or B can indicate three situations: A exists alone, A and B exist simultaneously, and B exists alone. Also, the character " / " in this specification generally indicates that the related objects before and after it are in an "or" relationship.

[0027] As should be further explained, the terms "comprises," "including," or any other variations thereof, are intended to cover non-exclusive inclusions, whereby a product or device comprising a set of elements not only includes those elements, but also includes other elements not expressly listed or inherent in such product or device. In the absence of further limitations, elements qualified by the phrase "comprises a..." do not exclude the presence of other similar elements in the product or device comprising said elements.

[0028] In order to further optimize the mounting structure of the end member and the end of the shaft and the stability of the mounting structure, the present disclosure provides a cleaning brush, in which a guide fitting structure is formed by the introduction portion in the guide sleeve of the end member and the end of the shaft, and a lock fitting structure is formed by the lock portion in the guide sleeve and the end of the shaft, the guide fitting structure and the lock fitting structure are cooperatively fitted together to enable more effective introduction and mounting, a more effective guide fitting structure, and a more effective foolproof mounting structure, which can improve the ease of mounting the end member and the stability of the mounting structure, thereby optimizing the mounting structure of the end member and the shaft, and further optimizing the overall structure of the cleaning brush.

[0029] The cleaning brush of the present disclosure has a wide range of applications and is particularly applicable to automatic cleaning equipment. The automatic cleaning equipment may be a self-propelled robot such as a mop robot, a robot vacuum cleaner, a vacuum cleaner-mop robot, or a large commercial floor cleaning machine, in which case the automatic cleaning equipment operates on an operating surface, which may be any operating surface such as the ground, a tabletop, a roof, or a platform. The self-propelled equipment may be a window cleaning robot, in which case the self-propelled equipment operates on the outer glass surface of a building, which is the operating surface. The automatic cleaning equipment may be a pipe self-propelled robot, in which case the automatic cleaning equipment operates on the inner surface of a pipe, which is the operating surface. These are merely for illustrative purposes.

[0030] For purposes of illustration, in this disclosure, the left side of a drawing page is referred to as the first side, the right side of a drawing page is referred to as the second side, the top side of a drawing page is referred to as the top side, and the bottom side of a drawing page is referred to as the bottom side, the top-to-bottom direction of a drawing page is referred to as the vertical direction, and the left-to-right direction of a drawing page is referred to as the horizontal direction.

[0031] Selected embodiments of the present disclosure will now be described in detail with reference to the drawings.

[0032] Fig. 1 is a structural schematic diagram of an automatic cleaning device according to an exemplary embodiment, and Fig. 2 is a bottom structural schematic diagram of the automatic cleaning device in Fig. 1. As shown in Fig. 1 and Fig. 2, the automatic cleaning device may be a vacuum suction robot, a mop / scrub robot, a window climbing robot, etc., and the automatic cleaning device may include a moving platform 1000, a sensing system 2000, a control system (not shown), a driving system 3000, an energy system (not shown), a human-machine interaction system 4000, and a cleaning module 5000, where: The mobile platform 1000 may be arranged to automatically move along a target direction on an operating surface. The operating surface may be a surface to be cleaned by an automatic cleaning device. In some embodiments, the automatic cleaning device may be a mop robot, where the automatic cleaning device operates on the ground, and the ground is the operating surface; the automatic cleaning device may be a window cleaning robot, where the automatic cleaning device operates on the exterior surface of architectural glass, and the glass is the operating surface; or the automatic cleaning device may be a pipe cleaning robot, where the automatic cleaning device operates on the interior surface of a pipe, and the interior surface of the pipe is the operating surface. Purely for purposes of demonstration, the following description in this application will use a mop robot as an example.

[0033] In some embodiments, the mobile platform 1000 may be an autonomous mobile platform or a non-autonomous mobile platform. The term "autonomous mobile platform" refers to the mobile platform 1000 itself being capable of automatically and adaptively making operational decisions based on unexpected environmental inputs, while the non-autonomous mobile platform itself is not capable of adaptively making operational decisions based on unexpected environmental inputs, but can execute a predetermined program or operate according to a certain logic. Accordingly, if the mobile platform 1000 is an autonomous mobile platform, the target direction may be determined autonomously by an automatic cleaning device, while if the mobile platform 1000 is a non-autonomous mobile platform, the target direction may be established by a system or artificially.

[0034] The sensing system 2000 includes a position determination device (not shown) located above the mobile platform 1000, a buffer (not shown) located at the front portion of the mobile platform 1000, a rotation sensor (not shown) located at the bottom of the mobile platform, and sensor devices such as an ultrasonic sensor (not shown), an infrared sensor (not shown), a magnetometer (not shown), an accelerometer (not shown), a gyroscope (not shown), and an odometer (not shown), and provides various position information and operating status information of the machine to the control system.

[0035] For ease of explanation, directions are defined as follows. The automatic cleaning device can be oriented by defining three mutually perpendicular axes: a lateral axis Y, a front-to-rear axis X, and a vertical axis Z. The direction indicated by the arrow along the front-to-rear axis X is marked as the "rear direction," and the direction opposite to the direction of the arrow along the front-to-rear axis X is marked as the "forward direction." The lateral axis Y is a direction substantially along the width of the automatic cleaning device. The direction indicated by the arrow along the lateral axis Y is marked as the "left direction," and the direction opposite to the direction of the arrow along the lateral axis Y is marked as the "right direction." The vertical axis Z is a direction extending upward from the bottom surface of the automatic cleaning device. As shown in FIG. 1 , the direction along the front-to-rear axis X is defined as a second direction, which may be, for example, a front direction or a rear direction, and the direction perpendicular to the second direction in the horizontal plane is a first direction, which may be, for example, a left direction or a right direction.

[0036] The control system (not shown) is installed on a circuit board within the mobile platform 1000 and includes a computing processor such as a central processing unit or an application processor that communicates with a non-transitory storage medium such as a hard disk, flash memory, or random access memory, and is configured to receive environmental information sensed by the plurality of sensors transmitted from the sensing system, create a real-time map of the environment in which the automatic cleaning device exists using a localization algorithm such as SLAM based on obstacle information fed back from the position estimation device, and autonomously determine a driving path based on the environmental information and the environmental map, and then control the drive system 3000 to perform operations such as moving forward, backward, and / or steering based on the autonomously determined driving path. Furthermore, the control system can also determine whether to activate the cleaning module 5000 to perform a cleaning operation based on the environmental information and the environmental map.

[0037] The drive system 3000 can execute drive commands to operate the automatic cleaning equipment to travel across the ground based on specific distance and angle information, such as x, y, and θ components. The drive system 3000 includes drive wheel assemblies, and can simultaneously control the left and right wheels. For more precise control of the machine's operation, the drive system 3000 preferably includes a left drive wheel assembly and a right drive wheel assembly, respectively. The left and right drive wheel assemblies are installed symmetrically along the horizontal axis defined by the mobile platform 1000. To enable the automatic cleaning equipment to operate more stably on the ground or have stronger operating capabilities, the automatic cleaning equipment may include one or more steering assemblies. The steering assemblies may be driven wheels or drive wheels, and their structural form may include, but is not limited to, swivel wheels, and the steering assemblies may be located in front of the drive wheel assemblies.

[0038] The energy system (not shown) includes a rechargeable battery such as a nickel-metal hydride battery or a lithium battery. A charging control circuit, a battery pack charging temperature detection circuit, and a battery low voltage monitoring circuit may be connected to the rechargeable battery, and the charging control circuit, battery pack charging temperature detection circuit, and battery low voltage monitoring circuit are further connected to a single-chip microcomputer control circuit. The main body is connected to a charging stand via charging electrodes installed on the side or bottom of the aircraft for charging.

[0039] The human-machine interaction system 4000 includes buttons on the main body panel for the user to select functions, and may further include a display screen and / or indicator lights and / or a speaker for displaying the current machine status or function selection items to the user. The human-machine interaction system 4000 may further include a mobile phone client program. For a route navigation type cleaning device, the mobile phone client can display a map of the environment in which the machine is located and the location of the device to the user, thereby providing the user with richer and more user-friendly functions.

[0040] As shown in FIG. 2 , the cleaning module 5000 includes a dust box, a fan, and a main brush module. The main brush module sweeps dust from the ground toward the dust box through a dust outlet between the main brush module and the dust box. The dust is then sucked into the dust box by suction generated by the fan and passing through the dust box. The dust removal capacity of a vacuum cleaner can be characterized by its dust pickup efficiency (DPU). DPU is affected by the wind power utilization rate of the airflow path consisting of the dust outlet, dust box, fan, air outlet, and the connecting components between them, as well as the type and output of the fan, making it a complex system design issue. Compared to typical plug-in vacuum cleaners, improved dust removal capacity is particularly significant for energy-limited automatic cleaning devices. Because improved dust removal capacity directly and effectively reduces energy requirements, a machine that can clean 80 square meters of ground on a single charge can now clean 180 square meters or more on a single charge. Furthermore, by reducing the number of charging times, the service life of the battery is also significantly increased, and the user will have to replace the battery less frequently.More intuitively and importantly, the improvement of dust removal ability is the most noticeable and important user experience, and the user can directly reach a conclusion on whether the cleaning / wiping is clean or not.

[0041] 2 , the automatic cleaning device includes a moving platform 1000, which is arranged to move freely on an operating surface, and a cleaning module 5000 installed at the bottom of the moving platform 1000, which is arranged to clean the operating surface. The cleaning module 5000 includes a driving unit 5100, a roller brush frame 5200, and a roller brush 5300 assembled in the roller brush frame 5200. The driving unit 5100 provides a forward or reverse driving force and applies the driving force to the roller brush 5300 via a multi-stage gear set. The roller brush 5300 rotates under the driving force to clean the operating surface, or the roller brush 5300 rotates under the driving force to collect dust.

[0042] 2, the roller brush frame 5200 is provided with a front cleaning brush mounting position 5211 and a rear cleaning brush mounting position 5212 for accommodating the cleaning roller brushes. The front cleaning brush mounting position 5211 has a first end 52111 and a second end 52112 opposite to the first end 52111, and one end of the first roller brush 100 is engaged and fixed with the first end 52111, and the other end of the first roller brush is engaged and fixed with the second end 52112. In some embodiments, the front cleaning brush mounting position 5211 is an elongated groove structure in the moving platform, and the elongated groove structure extends along the first direction. The rear cleaning brush mounting position 5212 has a third end 52121 and a fourth end 52122 opposite the third end 52121. In some embodiments, the rear cleaning brush mounting position 5212 and the front cleaning brush mounting position 5211 have essentially the same structure, such as an elongated groove structure on a moving platform, which extends along the first direction, and a second roller brush can be mounted in the elongated groove of the rear cleaning brush mounting position 5212 through an opening of the elongated groove structure. The two elongated groove structures are parallel to each other in the second direction. The shape and size of the elongated groove structure are not limited, as long as it can accommodate at least a portion of the first roller brush and the second roller brush. The first end of the front cleaning brush mounting position 5211 and the third end of the rear cleaning brush mounting position 5212 are located on one side of the front-rear axis X, and the second end of the front cleaning brush mounting position 5211 and the fourth end of the rear cleaning brush mounting position 5212 are located on the other side of the front-rear axis X.

[0043] For illustrative purposes, in each of the following embodiments of the present disclosure, an elongated groove structure close to the steering wheel of an automatic cleaning device is used as the front cleaning brush mounting position 5211, and an elongated groove structure away from the steering wheel is used as the rear cleaning brush mounting position 5212, but of course this may be reversed.

[0044] 2, in some embodiments, the automatic cleaning device includes two cleaning roller brushes 5300, one cleaning roller brush installed at the front cleaning brush mounting position 5211 and considered to be the "front roller brush," and the other cleaning roller brush installed at the rear cleaning brush mounting position 5212 and considered to be the "rear roller brush." ​​The front roller brush can be mounted in the front cleaning brush mounting position 5211 through an opening in an elongated groove structure, and the rear roller brush can be mounted in the rear cleaning brush mounting position 5212 through an opening in an elongated groove structure.

[0045] Hereinafter, the cleaning brush of the present disclosure will be described using one roller brush, for example, the front roller brush, as an example.

[0046] Fig. 3 is an exploded view of the three-dimensional structure of an example of a cleaning brush provided by the present disclosure. Fig. 4 is a three-dimensional structure view of an example of an end member of the cleaning brush of Fig. 3. Fig. 5 is a three-dimensional structure view of the end member of the cleaning brush of Fig. 4 from another angle.

[0047] 3 to 5, an embodiment of the present disclosure provides a cleaning brush 100. The cleaning brush 100 includes a shaft 110 including a shaft body 113 and a first end 111 and a second end 112 located on either side of the shaft body 113, and a first end member 120 arranged to be attached to the first end 111 and having a first assembly structure 121 on a side remote from the shaft 110. Specifically, the first assembly structure 121 is a transmission structure, and the first assembly structure 121 is connected to a drive mechanism of a cleaning device.

[0048] Specifically, the first end member 120 has at least one first introduction portion 1221, and the first end 111 has at least one first mating portion 1111. The at least one first introduction portion 1221 and the at least one first mating portion 1111 match to form a guide mating structure, so that the first end member 120 can only be attached to the first end 111 in one circumferential assembly method, that is, there is a single installation direction when assembling the first end member 120 and the shaft 110.

[0049] The meaning of the circumferential assembly method in this specification is as follows: if the two assembly members rotate 360 ​​degrees relative to each other and there are N types of assembly methods, the two are deemed to have N types of circumferential assembly methods, where N is 1 or more.

[0050] 4, the first end member 120 includes a first guide sleeve 122, which is arranged to accommodate the first end 111, and the at least one first introduction portion 1221 is a protrusion that is installed on the inner circumferential wall of the first guide sleeve 122 and protrudes inward from the inner circumferential wall of the first guide sleeve 122. The first end member 120 is attached to the first end 111 located on the drive side.

[0051] Specifically, the at least first introduction portion 1221 extends spirally along the circumferential direction of the first guide sleeve 122 in a direction away from the first assembly structure 121, and specifically has a spiral shape that extends and rotates spirally along the inner circumferential wall, thereby giving the first introduction portion 1221 a rotational direction, for example, a rotational direction that rotates clockwise (or counterclockwise) around the axis z of the shaft 110.

[0052] It should be noted that in this example, the first introduction portion 1221 is a protrusion that protrudes from the inner wall of the first guide sleeve 122, but is not limited to this, and it is sufficient that one of the first introduction portion 1221 and the first fitting portion 1111 is a protrusion and the other is a recessed portion.

[0053] 4, there are two first guide portions 1221, and the sizes of the two first guide portions 1221 are different. By arranging the two first guide portions to have different sizes, it is possible to effectively ensure that the first end member 120 and the drive end of the shaft have only a single mounting direction, thereby controlling the mounting direction of components such as the blade of the cleaning brush to be unique.

[0054] It should be noted that in this example, the number of the first introductory portions 1221 is two, but is not limited thereto; in other examples, the number of the first introductory portions 1221 may also be three or more; the above is merely described as a selective example and should not be understood as limiting the present disclosure.

[0055] 5, a first fitting portion 1111 corresponding to the first introduction portion 1221 is provided on the outer periphery of the first end portion 111 of the shaft 110. In this example, two first fitting portions 1111 are provided on the outer periphery of the first end portion 111, and the two first fitting portions 1111 correspond one-to-one to the two first introduction portions 1221, respectively. The first fitting portions 1111 are grooves recessed inward from the outer periphery of the first end portion 111. The first introduction portions 1221 and the first fitting portions 1111 match to form a guide and insertion structure, so that the first end member 120 can only be attached to the first end portion 111 by one circumferential assembly method.

[0056] By adding two different sized first introduction portions to the inner peripheral wall of the first guide sleeve, it can be introduced and installed more effectively, and the first end member can be installed to the first end member using only one circumferential assembly method, which improves the ease of installation of the end member and the stability of the installation structure.

[0057] Optionally, a mark portion 1223 (see Figure 4) is provided on the outer periphery of the first guide sleeve 122, and is arranged to mark the position of the first introduction portion 1221 on the outer periphery of the first guide sleeve 122, and is used to indicate the rotational assembly direction for attaching the first end member 120 to the first end 111 of the shaft 110, making it easier to align and assemble the first introduction portion 1221 and the first mating portion 1111.

[0058] 4 to 6, a first locking portion 1222 is provided on the first guide sleeve 122, and is, for example, a recessed groove recessed inward from the outer circumferential surface of the first guide sleeve 122. Correspondingly, a first locking matching portion 1112 is provided on the first end portion 111, and the first locking portion 1222 is fitted with the first locking matching portion 1112 to lock the first end member 120 to the first end portion 111.

[0059] 5 and 6, the first end member 120 further includes a first guide shaft 123, which extends along the axis of the first guide sleeve 122, and has a first guide hole 1113 on the end surface of the first end 111 away from the second end 112, which is coaxial with the shaft 110 and arranged to accommodate the first guide shaft 123.

[0060] 5 and 6, the end surface of the first assembly structure 121 facing away from the shaft has a regular polygonal shape, and the number of sides of the regular polygon is a divisor of the number of brush components. In other words, the number of sides of the regular polygon of the outer end surface of the first end member corresponds to the number of sets of brush components of the automatic cleaning device. For example, the number of sides N of the regular polygon is a divisor of the number of sets (e.g., four sides, eight sets of blades, or, for example, four sides, four sets of blades), which ensures that the orientations of the blades and other components of the brush components of the cleaning brush are consistent after the cleaning brush is attached to the main body of the automatic cleaning device according to the N directions.

[0061] It should be noted that in this embodiment, the sides of the regular polygon are N straight sides, but are not limited thereto, and in other embodiments, the sides may be further adjusted, for example, curved sides, or a combination of straight and curved sides. In other examples, the shape of the regular polygon changes adaptively depending on the number of brush components.

[0062] 3, the cleaning brush 100 further includes a brush member 130 that is installed coaxially with the shaft 110, and the brush member 130 includes a cylindrical member 131 that is fitted onto the outer periphery of the shaft, and a plurality of brush parts 132. The plurality of brush parts 132 extend in a direction away from the outer surface of the cylindrical member 131, and the plurality of brush parts 132 are uniformly installed along the circumferential direction of the cylindrical member.

[0063] Specifically, the brush part 131 includes a first brush part, for example, the first brush part is V-shaped and includes five sets of first brush parts.

[0064] It should be noted that in other examples, the brush parts may further include a second brush part or a third brush part, etc., and the second brush part and the third brush part have different shapes, lengths, etc. from the first brush part. In addition, the structures of different sets of brush parts are basically the same, and each set of brush parts may include one or more blades, and when including multiple blades, the structures of the multiple blades are generally not completely the same.

[0065] Specifically, a flexible filler (not shown) is filled between the brush member 130 and the shaft 110, and the flexible filler covers the outer periphery of the shaft body and exposes the first end and the second end.

[0066] The first end member 120 further includes a first blocking structure 125, which is disposed between the first assembly structure 121 and the first guide sleeve 122 and is used to prevent wound material from excessively extending away from the brush member and the cleaning brush. The first blocking structure 125 is, for example, at least one blocking ring, and in this example, two blocking rings. By providing the blocking structure, wound material, such as dust, can be wound around the blocking structure of the first end member, effectively preventing the wound material from wrapping around the shaft. When the end member is attached or detached, the wound material can be directly attached or detached in accordance with the attachment or detachment of the end cap member.

[0067] The first guide sleeve of the first end member and the drive end of the shaft form a guide fitting structure, and the first locking portion on the first guide sleeve and the first locking matching portion on the shaft end are fitted together to form a locking fitting structure. The guide fitting structure and the locking fitting structure work together to fit together, achieving a more effective mounting structure, which further optimizes the mounting structure between the end member and the shaft, and further optimizes the overall structure of the cleaning brush.

[0068] 7 is an exploded view of the three-dimensional structure of the cleaning brush of FIG. 3 from another angle, and FIG. 8 is an exploded view of the local structure of the second end member and shaft of the cleaning brush of FIG. 3 from one angle.

[0069] 7 and 8, the cleaning brush 100 further includes a second end member 140. The second end member 140 is located on the driven side and is attached to the second end 112 of the shaft 110. The second end member 140 has a second assembly structure 141 (specifically, a bearing structure) on the side away from the shaft 110, and the second assembly structure 141 can rotate relative to the shaft and is rotatably connected to another structure of the cleaning device (such as the body) by the second assembly structure 141.

[0070] As shown in Figures 7 and 8, the second end member 140 has at least one second introduction portion 1421, and the second end 112 has at least one second engagement portion 1121, and the at least one second introduction portion 1421 and the at least one second engagement portion 1121 match to form a guide engagement structure, so that the second end member 140 can be attached to the second end in multiple circumferential assembly methods.

[0071] Furthermore, the second introduction portion 1421 extends spirally along the circumferential direction of the second guide sleeve 142 in a direction away from the second assembly structure 141, specifically has a spiral shape that extends by rotating spirally along the inner circumferential wall, so that the second introduction portion 1421 has a rotation direction, for example, a clockwise (or counterclockwise) rotation direction around the axis z of the shaft 110, thereby forming a second introduction direction. In this example, the second introduction direction is the same as the first introduction direction.

[0072] For illustrative purposes, in this example, the first introduction direction is the same as the second introduction direction, but is not limited thereto. In other examples, the rotation direction of the first introduction portion may also be, for example, non-helical or linear. Also, in other examples, the second introduction direction may be different from the first introduction direction. The above is merely a selection of examples and should not be construed as limiting the present disclosure.

[0073] As shown in FIG. 8, the at least one second introduction portion 1421 includes two second introduction portions 1421, and the shapes and sizes of the two second introduction portions 1421 are the same, so that the second end member can be attached to the second end portion 112 in two circumferential assembly methods.

[0074] Preferably, when the introduction directions of the first introduction portion 1221 and the second introduction portion 1421 are the same, the sizes of the two first introduction portions 1221 are different (and accordingly the size of the first mating portion 1111 is different from the size of the second mating portion 1121), the sizes of the two second introduction portions 1421 are the same, and the size of the second introduction portion 1421 is between the sizes of the two first introduction portions 1221.

[0075] The size of the two second guide sections on the driven end is between the sizes of the two first guide sections on the driving side, which ensures that the second end member can be freely installed at multiple angles and that the end members on both sides cannot be installed in reverse, effectively ensuring that the orientation of members such as blades is accurate after the cleaning brush is installed.

[0076] It should be noted that the number of second guide portions may be three or more in other examples. The above is merely a selective example and should not be understood as limiting the present disclosure. Furthermore, since there is a need for an installation angle on the drive side of the first end member and the second end member, it is preferable to install two first guide portions of different sizes on the drive side. However, since the second assembly structure (specifically, the bearing structure) on the driven side can freely rotate relative to the shaft, the second end member on the driven side does not need to be designed with different sizes. After the bearing structure is assembled to the body of the automatic cleaning device, the remaining part of the cleaning brush can freely rotate relative to the bearing structure. Since there is no strong need for an assembly angle on the driven side, in other examples, the second guide portions may also be the same size.

[0077] A more effective guide-fitting structure can be realized by the first introduction portion 1221 and the second introduction portion 1421 forming a guide-fitting structure with the first fitting portion 1111 and the second fitting portion 1121. By arranging the two first introduction portions 1221 to have different sizes and arranging the second introduction portion and the first introduction portion to have different sizes, the first end member can be attached to the first end member using only one circumferential assembly method, and the second end member can be attached to the second end member using multiple circumferential assembly methods, so that the attachment angles between the first end member and the second end member and the shaft can be accurately determined, and a more effective attachment structure can be realized.

[0078] Furthermore, the second guide sleeve 142 of the second end member 140 is provided with a A second locking portion 1422 is provided, for example, a groove recessed inward from the outer circumferential surface of the second guide sleeve 142. The second locking portion 1422 may also be a through-hole passing through the second guide sleeve 142. Accordingly, a first locking portion 1123 is provided at the second end portion 112, and the second locking portion 1422 is fitted with the second locking portion 1123 to lock the second end member 140 to the second end portion 112, thereby forming a locking and fitting structure.

[0079] As shown in FIG. 8, the second end member 140 further includes a second guide shaft 144, which extends along the axis of the second guide sleeve 142, and has a second guide hole (not shown) provided on the end face of the second end 112 away from the first end 111, which is coaxial with the shaft 110 and arranged to accommodate the second guide shaft 144.

[0080] Furthermore, the second end member 140 further includes a second blocking structure 145 , which is located on a side of the second guide sleeve 142 away from the shaft 110 .

[0081] Specifically, the outer diameter of the blocking structure 145 is larger than the outer diameter of the second guide sleeve 142. By installing the blocking structure on the second end member, wound objects such as dust can be wound around the blocking structure of the second end member, effectively preventing the wound objects from getting wrapped around the shaft, and the wound objects can be removed directly following the attachment and detachment of the end cap member when the end member is attached or detached.

[0082] Optionally, a marking portion 1423 may be further provided on the second guide sleeve 142, which is arranged to mark the position of the second introduction portion 1421 on the outer periphery of the second guide sleeve 142 and is used to indicate the rotational assembly direction for attaching the second end member 140 to the second end 112 of the shaft 110, making it easier to align and assemble the second introduction portion and the second mating portion.

[0083] Furthermore, the second assembly structure 141 of the second end member 140 is arranged in a polygonal shape corresponding to the number of the brush components. In this example, the polygonal shape of the outer end surface of the second assembly structure 141 is a pentagon formed by combining straight lines and curved lines.

[0084] Preferably, the regular polygonal shape of the outer end surface of the first end member 120 is different from the polygonal shape of the outer end surface of the second assembly structure 141, so that the shapes of the outer end surfaces of the first end member and the second end member are different, making it easier to distinguish between the two ends and improving installation convenience.

[0085] The cleaning brush of the present disclosure has a unique circumferential assembly method for the lead-in member of the end member of the drive end, thereby ensuring that the drive end has a relatively fixed mounting direction and contributing to the controllability of the mounting angle of the roller brush. This is particularly useful in some situations where there are certain predetermined requirements for the orientation or alignment direction of the roller brush sub-members, particularly the blades, such as when two of the present roller brushes are used to form a double brush system and there are certain alignment requirements for their respective blades.

[0086] The cleaning brush of the present disclosure forms a guide fitting structure by the introduction portion on the inner wall of the guide sleeve of the end member and the end of the shaft, and forms a lock fitting structure by the lock portion on the outer periphery of the guide sleeve and the end of the shaft. The guide fitting structure and the lock fitting structure cooperate to fit together, allowing for more effective introduction and installation, thereby realizing a more effective guide fitting structure and a more effective foolproof installation structure, improving the ease of installation of the end member and the stability of the installation structure, optimizing the installation structure between the end member and the shaft, and further optimizing the overall structure of the cleaning brush.

[0087] In addition, by installing the two first introduction sections with different sizes and installing the second introduction section and the first introduction section with different sizes, the first end member can only be attached to the first end member using one circumferential assembly method, and the second end member can be attached to the second end member using multiple circumferential assembly methods, so that the attachment angles between the first end member and the second end member and the shaft can be accurately determined, and a more effective attachment structure can be realized.

[0088] In addition, by providing marks on the outer periphery of the first guide sleeve and the second guide sleeve to indicate the rotational assembly direction for attaching the first end member and the second end member to the first end and second end of the shaft, it is possible to effectively ensure that the first introduction portion is aligned with the first fitting portion when assembled, and it is possible to effectively ensure that the second introduction portion is aligned with the second fitting portion when assembled.

[0089] In addition, by using a divisor of the number of sides of the regular polygon on the outer end surface of the first end member and the number of sets of brush parts of the automatic cleaning equipment, it is possible to ensure that the orientations of parts such as blades in the brush parts of the cleaning brush are consistent after the cleaning brush is attached to the main body of the automatic cleaning equipment according to N directions.

[0090] Furthermore, by providing a blocking structure on the end member and winding the wound material directly around the blocking structure of the end member, it is possible to effectively prevent the wound material from getting wrapped around the shaft.

[0091] The present disclosure further provides another embodiment that inherits from the above embodiment, and the embodiment of the present disclosure further provides an automatic cleaning device, characterized by including the cleaning brush described in the above embodiment. The interpretation based on the meaning of the same name is the same as the above embodiment, and has the same technical effect as the above embodiment, so a description thereof will be omitted here.

[0092] Finally, it should be noted that the embodiments in this specification are described in a progressive manner, and the differences between each embodiment and other embodiments are emphasized in the description, and the same or similar parts between each embodiment may be referred to. Regarding the systems or devices disclosed in the embodiments, they correspond to the methods disclosed in the embodiments, so the description is relatively simple, and the relevant parts may be referred to the description of the method part.

[0093] The above examples are used only to explain the technical solutions of the present disclosure and are not limiting thereof. The present disclosure has been described in detail with reference to the above examples. However, those skilled in the art may still amend the technical solutions described in the above examples or equivalently replace some of the technical features thereof, but it should be understood that such amendments or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A cleaning brush, a shaft including a shaft body and a first end located on one side of the shaft body; a first end member arranged to be attached to the first end; the first end member has at least one first lead-in portion, and the first end portion has at least one first fitting portion, and the at least one first lead-in portion and the at least one first fitting portion are matched to form a guide and fitting structure, so that the first end member can only be attached to the first end portion by one circumferential assembly method. Cleaning brush.

2. the at least one first lead-in portion includes two first lead-ins, and at least one of the shapes and sizes of the two first lead-ins is different, so that the first end member can be attached to the first end member in only one circumferential assembly method; The cleaning brush of claim 1 .

3. The shaft has a second end located on the other side of the shaft body; a second end member arranged to be attached to the second end and having a second assembly structure on a side remote from the shaft; the second end member has at least one second lead-in portion, and the second end member has at least one second mating portion, and the at least one second lead-in portion and the at least one second mating portion match to form a guide-and-fit structure, so that the second end member can be attached to the second end member in a plurality of circumferential assembly methods; 3. The cleaning brush of claim 2.

4. the at least one second lead-in portion includes two second lead-in portions, and the two second lead-in portions have the same shape and size, so that the second end member can be attached to the second end member in two circumferential assembly methods; 4. The cleaning brush of claim 3.

5. the two first introduction portions have different sizes, and the two second introduction portions have sizes between the sizes of the two first introduction portions; 5. The cleaning brush of claim 4.

6. the first end member includes a first guide sleeve, the first guide sleeve is arranged to receive the first end, and the at least one first lead-in portion is disposed on an inner peripheral wall of the first guide sleeve; The at least one first fitting portion is disposed on the outer periphery of the first end portion and corresponds to the at least one first introduction portion in a one-to-one correspondence.

4. The cleaning brush of claim 3.

7. a first assembly structure on a side of the first end member away from the shaft, and the at least one first lead-in portion extends spirally along a circumferential direction of the first guide sleeve in a direction away from the first assembly structure; 7. The cleaning brush of claim 6.

8. One of the first introduction portion and the first fitting portion is a protrusion portion, and the other is a recessed portion.

7. The cleaning brush of claim 6.

9. a mark portion is provided on the outer periphery of the first guide sleeve, the marking portion is arranged to mark the position of the first introducing portion on the outer periphery of the guide sleeve so that the first introducing portion is assembled in alignment with the first fitting portion; 7. The cleaning brush of claim 6.

10. a first locking portion is provided on the first guide sleeve, and a first locking matching portion is provided on the first end portion, and the first locking portion is fitted with the first locking matching portion to lock the first end member to the first end portion; 7. The cleaning brush of claim 6.

11. The first end member further includes a first guide shaft, the first guide shaft extending along an axis of the first guide sleeve; a first guide hole is provided on an end surface of the first end portion away from the second end portion, the first guide hole being coaxial with the shaft and arranged to accommodate the first guide shaft; 7. The cleaning brush of claim 6.

12. The cleaning brush further includes a brush member disposed coaxially with the shaft, the brush member including: a cylindrical member fitted onto the outer periphery of the shaft; a plurality of brush components extending from the outer surface of the cylindrical member in a direction away from the cylindrical member and uniformly arranged along the circumferential direction of the cylindrical member, The cleaning brush according to any one of claims 3 to 5.

13. a first assembly structure on a side of the first end member that faces away from the shaft, and an end surface of the first assembly structure that faces away from the shaft has a regular polygon that is a divisor of the number of the brush components; 13. The cleaning brush of claim 12.

14. a flexible filler is filled between the brush member and the shaft, the flexible filler covering the outer periphery of the shaft body and exposing the first end and the second end; 13. The cleaning brush of claim 12.

15. a first assembly structure on a side of the first end member away from the shaft; The first end member further includes a first blocking structure disposed between the first assembly structure and the first guide sleeve to prevent the wrapping from excessively extending away from the brush member.

12. The cleaning brush of claim 11.

16. a first assembly structure on a side of the first end member away from the shaft; the first assembly structure includes a transmission structure, and the second assembly structure includes a bearing structure; The cleaning brush according to any one of claims 3 to 5.

17. An automatic cleaning device comprising a cleaning brush according to any one of claims 1 to 16.

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