Rolling brush axial limiting device, cleaning brush and automatic cleaning equipment

Abstract

The utility model provides a rolling brush axial limiting device, a cleaning brush and automatic cleaning equipment, the rolling brush axial limiting device comprises a first assembling component, the first assembling component is configured to output driving force after being connected with a driving device, the first assembling component is provided with a first limiting piece, and the first limiting piece is rotatably arranged on the first assembling component; the second assembling component is configured to at least partially accommodate the first assembling component and then limit the axial movement of the rolling brush, the second assembling component is provided with a second limiting piece, and the second limiting piece is rotatably arranged on the second assembling component; after the first assembling component is at least partially assembled on the second assembling component, the first limiting piece and the second limiting piece are matched to achieve locking.

Description

Technical Field

[0001] The present disclosure relates to the technical field of self-propelled equipment, and in particular to an axial limiting device for a roller brush, a cleaning brush and an automatic cleaning device. Background Art

[0002] With the continuous development of science and technology, automatic cleaning equipment, such as sweeping robots and sweeping and mopping machines, have been widely used in households. In order to realize the sweeping function, a cleaning robot with a sweeping function is provided with a cleaning brush to roll up garbage of different sizes on the ground and suck it into a garbage collection box.

[0003] However, the roller brush moves in the axial direction during the rotational cleaning process, thereby affecting the cleaning efficiency and user experience of the automatic cleaning device. Utility Model Content

[0004] The purpose of the present disclosure is to provide a roller brush axial limit device, a cleaning brush and an automatic cleaning device, which can solve the problem of axial movement of the roller brush during the cleaning process of the automatic cleaning device. The details are as follows:

[0005] A roller brush axial limiting device, comprising:

[0006] A first assembly component is configured to output a driving force after being connected to a driving device, wherein the first assembly component has a first limiter, and the first limiter is rotatably disposed on the first assembly component;

[0007] A second assembly component is configured to limit the axial movement of the roller brush after at least partially accommodating the first assembly component, the second assembly component having a second limiter, and the second limiter is rotatably disposed on the second assembly component;

[0008] Wherein, after the first assembly component is at least partially assembled to the second assembly component, the first limiting member and the second limiting member cooperate to achieve locking.

[0009] In some embodiments, the first assembly member includes a first accommodating portion, the first limiting member includes a first locking portion, and the first locking portion is rotatably disposed on the first accommodating portion;

[0010] The second assembly member includes a second accommodating portion, the second limiting member includes a second locking portion, and the second locking portion is rotatably disposed on the second accommodating portion;

[0011] Wherein, after the first assembly component is at least partially assembled to the second assembly component, the first locking portion and the second locking portion cooperate to achieve locking.

[0012] In some embodiments, the first assembly member includes a first abutting portion configured to abut against the second stopper to make it cooperate with the first stopper to achieve locking;

[0013] The second assembly component includes a second pushing portion configured to push the first limiting member to cooperate with the second limiting member to achieve locking.

[0014] In some embodiments, the first accommodating portion is an arc-shaped structure, and the first locking portion is an arc-shaped structure with the same curvature as the first accommodating portion; and / or, the second accommodating portion is an arc-shaped structure, and the second locking portion is an arc-shaped structure with the same curvature as the second accommodating portion.

[0015] In some embodiments, the curvatures of the first accommodating portion, the first locking portion, the second accommodating portion, and the second locking portion are substantially the same.

[0016] In some embodiments, the first assembly member includes a first through groove, and the first through groove is connected to the first receiving portion;

[0017] The first position-limiting member includes a first extending portion, and the first extending portion is configured to extend from the first through slot.

[0018] In some embodiments, the second assembly member includes a second through groove, and the second through groove is connected to the second receiving portion;

[0019] The second position-limiting member includes a second extending portion, and the second extending portion is configured to extend from the second through slot.

[0020] In some embodiments, the second assembly component further comprises:

[0021] A positioning member, arranged at an end of the second assembly member away from the second limiting member;

[0022] An elastic member is connected between the positioning member and the second extending portion and is configured to provide a locking force to the second limiting member.

[0023] In some embodiments, the second assembly component further includes: a second limiting plate, which is disposed on the end surface of the second assembly component facing the first assembly component and is configured to limit the axial movement of the roller brush.

[0024] In some embodiments, the second limiting plate includes a recessed portion;

[0025] The first assembly component includes a first limiting plate. After the first assembly component is assembled to the second assembly component, the first limiting plate is assembled to the recessed portion.

[0026] In some embodiments, the first assembly component further includes an adapting portion disposed on a side of the first assembly component away from the first limiting member.

[0027] In some embodiments, the adapter portion is a polygonal column structure or a plum blossom structure.

[0028] In some embodiments, the second assembly component further includes: at least one limiting edge extending axially along the second assembly component and configured to limit the position in the circumferential direction after being assembled on the roller brush.

[0029] In some embodiments, the second assembly member is integrally formed with the roller brush.

[0030] Some embodiments of the present disclosure provide a cleaning brush, comprising an axial limiting device for a roller brush as described in any one of the above items.

[0031] Some embodiments of the present disclosure provide an automatic cleaning device, including the cleaning brush described in the aforementioned embodiments.

[0032] The above solution of the embodiment of the present disclosure can have the following beneficial effects:

[0033] The present invention improves the conventional roller brush axial limit mode, thereby reducing the number of axis limit mechanism components, and fundamentally reduces the cost of production, assembly, transportation, etc. The present invention improves the external limit mechanism and assembles it inside the roller brush body, thereby reducing the space occupied by the axial limit mechanism, thereby increasing the ground interference of the cleaning function components, thereby increasing the cleaning efficiency. The present invention allows the user to complete the disassembly and assembly work by pressing a switch, thereby enhancing the user's disassembly and assembly efficiency and usage efficiency, and improving user favorability. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0035] Figure 1 A schematic structural diagram of an automatic cleaning device according to an exemplary embodiment of the present disclosure;

[0036] Figure 2 for Figure 1 A schematic diagram of the structure of the automatic cleaning device viewed from above;

[0037] Figure 3 It is a three-dimensional structure explosion diagram of the roller brush axial limiting device provided according to the present disclosure;

[0038] Figure 4 It is a three-dimensional structural diagram of the roller brush axial limiting device provided according to the present disclosure;

[0039] Figure 5 is a cross-sectional view of the roller brush axial limiting device provided according to the present disclosure;

[0040] Figure 6 It is a cross-sectional exploded view of the roller brush axial limiting device provided according to the present disclosure;

[0041] Figure 7 A diagram illustrating the assembly process of the roller brush axial limiting device provided in the present disclosure;

[0042] Figure 8 It is a diagram illustrating the unlocking process of the roller brush axial limiting device provided according to the present disclosure.

[0043] Description of reference numerals:

[0044] Mobile platform 1000, perception system 2000, drive system 3000, human-computer interaction system 4000, cleaning module 5000, roller brush 5100, first assembly component 5200, first limiting member 5210, first locking portion 5211, first extending portion 5212, adapter portion 5230, first limiting plate 5240, first accommodating portion 5250, first through groove 5260, first pushing portion 5270, second assembly component 5300, second limiting member 5310, second locking portion 5311, second extending portion 5312, second accommodating portion 5320, second through groove 5330, elastic member 5340, limiting edge 5350, positioning member 5360, second limiting plate 5370, recessed portion 5371, second pushing portion 5380, accommodating cavity 5390. DETAILED DESCRIPTION

[0045] In order to make the technical scheme and technical effects of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0046] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. The singular forms "a", "said" and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0047] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0048] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or device. In the absence of more restrictions, the elements defined by the sentence "comprises a" do not exclude the presence of other identical elements in the product or device including the elements.

[0049] The cleaning equipment realizes cleaning through the rotation of the roller brush. The roller brush will move axially during the rotation cleaning process. The existing roller brush axial limit mechanism is often large in size. The related products are mostly in the form of roller brush covers, gate knives, etc. Their working principle is to perform axial zero contact fit on the roller brush shaft with the interference fit bearing or bearing-type structural parts, while limiting the axial movement of the bearing, thereby limiting the axial movement of the roller brush body. However, this type of structural parts is large in size, requires more structural parts, occupies a large amount of product space, increases costs, and reduces the maximum utilization of functions, and thus cannot increase the cleaning effect from the space.

[0050] The present disclosure provides an axial limit device for a roller brush, a cleaning brush and an automatic cleaning device, wherein the axial limit device for the roller brush comprises: a first assembly component, configured to output a driving force after being connected to a driving device, the first assembly component having a first limit piece, and the first limit piece is rotatably arranged on the first assembly component; a second assembly component, configured to limit the axial movement of the roller brush after at least partially accommodating the first assembly component, the second assembly component having a second limit piece, and the second limit piece is rotatably arranged on the second assembly component; wherein, after the first assembly component is at least partially assembled on the second assembly component, the first limit piece and the second limit piece cooperate to achieve locking.

[0051] The present invention improves the conventional axial limit mode of the roller brush, and can realize the axial locking of the roller brush through the cooperation of the first limit member and the second limit member, thereby preventing the roller brush from moving axially, thereby reducing the number of axial limit mechanism components, and fundamentally reducing the costs of production, assembly, transportation, etc. The present invention improves the external limit mechanism and assembles it inside the roller brush body, thereby reducing the space occupied by the axial limit mechanism, thereby increasing the interference amount of the cleaning function components with the ground, thereby increasing the cleaning efficiency. The present invention can complete the disassembly and assembly work by the user pressing a switch, which enhances the user's disassembly and assembly efficiency and usage efficiency, and improves the user's favorability.

[0052] The optional embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0053] Figure 1 is a schematic structural diagram of an automatic cleaning device according to an exemplary embodiment. Figure 2 for Figure 1 The schematic diagram of the structure of the automatic cleaning device from above. Figure 1 and Figure 2 As shown, the automatic cleaning device may be a vacuum robot, a mopping / brushing robot, a window climbing robot, etc. The automatic cleaning device may include a mobile platform 1000, a sensing system 2000, a control system (not shown), a driving system 3000, an energy system (not shown), a human-computer interaction system 4000, and a cleaning module 5000. Among them:

[0054] The mobile platform 1000 may be configured 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 mopping robot, in which case the automatic cleaning device works on the ground, and the ground is the operating surface; the automatic cleaning device may also be a window cleaning robot, in which case the automatic cleaning device works on the outer glass surface of a building, and the glass is the operating surface; the automatic cleaning device may also be a pipe cleaning robot, in which case the automatic cleaning device works on the inner surface of a pipe, and the inner surface of the pipe is the operating surface. Purely for the purpose of demonstration, the following description in this application is illustrated by taking a mopping robot as an example.

[0055] In some embodiments, the mobile platform 1000 can be an autonomous mobile platform or a non-autonomous mobile platform. The autonomous mobile platform means that the mobile platform 1000 itself can automatically and adaptively make operational decisions based on unexpected environmental inputs; the non-autonomous mobile platform itself cannot adaptively make operational decisions based on unexpected environmental inputs, but can execute established programs or operate according to certain logic. Accordingly, when the mobile platform 1000 is an autonomous mobile platform, the target direction can be determined autonomously by the automatic cleaning device; when the mobile platform 1000 is a non-autonomous mobile platform, the target direction can be set by the system or manually.

[0056] The perception system 2000 includes a position determination device (not shown in the figure) located above the mobile platform 1000, a buffer (not shown in the figure) located at the forward part of the mobile platform 1000, a rotation sensor (not shown in the figure) and an ultrasonic sensor (not shown in the figure) located at the bottom of the mobile platform, an infrared sensor (not shown in the figure), a magnetometer (not shown in the figure), an accelerometer (not shown in the figure), a gyroscope (not shown in the figure), an odometer (not shown in the figure) and other sensing devices, which provide the control system with various position information and motion status information of the machine.

[0057] For the convenience of description, the following directions are defined: the automatic cleaning device can be calibrated by defining the following three mutually perpendicular axes: the transverse axis Y, the front-rear axis X, and the vertical axis Z. The direction of the arrow along the front-rear axis X is marked as "rearward", and the direction opposite to the arrow direction along the front-rear axis X is marked as "forward". The transverse axis Y is essentially along the width of the automatic cleaning device. The direction of the arrow along the transverse axis Y is marked as "left", and the direction opposite to the arrow along the transverse axis Y is marked as "right". The vertical axis Z is the direction extending upward from the bottom surface of the automatic cleaning device. Figure 1 As shown, the direction along the front-rear axis X is defined as the second direction, and the second direction is, for example, forward or backward; the direction perpendicular to the second direction in the horizontal plane is defined as the first direction, and the first direction is, for example, left or right.

[0058] The control system (not shown in the figure) is set on the circuit board in the mobile platform 1000, including a computing processor such as a central processing unit and an application processor that communicates with a non-temporary memory such as a hard disk, a flash memory, and a random access memory. The application processor is configured to receive the environmental information sensed by the multiple sensors transmitted by the perception system, and use a positioning algorithm such as SLAM to draw a real-time map of the environment where the automatic cleaning device is located according to the obstacle information fed back by the position determination device, and autonomously determine the driving path according to the environmental information and the environmental map, and then control the driving system 3000 to move forward, backward and / or turn according to the autonomously determined driving path. Further, the control system can also decide whether to start the cleaning module 5000 for cleaning operations according to the environmental information and the environmental map.

[0059] The drive system 3000 can execute a drive command based on specific distance and angle information, such as x, y and θ components, to manipulate the automatic cleaning device to travel across the ground. The drive system 3000 includes a drive wheel assembly, and the drive system 3000 can control the left and right wheels at the same time. In order to more accurately control the movement of the machine, it is preferred that the drive system 3000 includes a left drive wheel assembly and a right drive wheel assembly respectively. The left and right drive wheel assemblies are symmetrically arranged along the horizontal axis defined by the mobile platform 1000. In order for the automatic cleaning device to be able to move more stably on the ground or have stronger movement ability, the automatic cleaning device may include one or more steering assemblies, and the steering assembly may be a driven wheel or a driving wheel, and its structural form includes but is not limited to a universal wheel, and the steering assembly may be located in front of the driving wheel assembly.

[0060] The energy system (not shown in the figure) includes rechargeable batteries, such as nickel-metal hydride batteries and lithium batteries. The rechargeable battery can be connected to a charging control circuit, a battery pack charging temperature detection circuit, and a battery undervoltage monitoring circuit, which are then connected to a single-chip microcomputer control circuit. The host is charged by connecting to a charging pile through a charging electrode arranged on the side or below the fuselage.

[0061] The human-machine interaction system 4000 includes buttons on the host panel for users to select functions; it may also include a display screen and / or indicator lights and / or speakers, which display the current state of the machine or function selection items to the user; it may also include a mobile client program. For path navigation cleaning equipment, the mobile client can show the user a map of the environment where the equipment is located, as well as the location of the machine, and can provide users with more abundant and humanized function items.

[0062] like Figure 2As shown, the cleaning module 5000 includes a dust box, a fan, and a main brush module. The main brush module sweeps the garbage on the ground to the front of the dust suction port between the main brush module and the dust box, and then the gas with suction generated by the fan and passing through the dust box is sucked into the dust box. The dust removal ability of the sweeper can be characterized by the dust collection efficiency DPU (Dust pickup efficiency). The cleaning efficiency DPU is affected by the wind utilization rate of the air duct formed by the dust suction port, dust box, fan, air outlet and the connecting parts between the four, and is affected by the type and power of the fan. It is a complex system design problem. Compared with ordinary plug-in vacuum cleaners, the improvement of dust removal ability is more meaningful for automatic cleaning equipment with limited energy. Because the improvement of dust removal ability directly and effectively reduces the energy requirements, that is, the machine that can clean 80 square meters of the ground with one charge can evolve to clean 180 square meters or more with one charge. In addition, the service life of the battery with reduced charging times will also be greatly increased, so that the frequency of battery replacement by users will also be reduced. More intuitively and importantly, the improvement in dust removal capability is the most obvious and important user experience. Users can directly draw conclusions about whether the sweep / wipe is clean.

[0063] like Figure 2 As shown, a cleaning module 5000 is provided at the bottom of the mobile platform 1000, and the cleaning module 5000 is configured to clean the operating surface. The cleaning module 5000 includes a driving device, a roller brush frame, and a roller brush 5100 assembled in the roller brush frame. The driving device provides a forward or reverse driving force, and applies the driving force to the roller brush 5100 through a multi-stage gear set. The roller brush 5100 rotates under the action of the driving force to clean the operating surface, or the roller brush 5100 rotates under the action of the driving force to collect dust.

[0064] Specifically, Figure 3As shown, an embodiment of the present disclosure provides an axial limiting device for a roller brush, comprising: a first assembly component 5200, the first assembly component 5200 is configured to output a driving force after being connected to a driving device of a cleaning module 5000, optionally, the first assembly component 5200 is configured to be connected to an output end of a multi-stage gear set of the driving device, the first assembly component 5200 has a first limiting member 5210, and the first limiting member 5210 is rotatably disposed on the first assembly component 5200; a second assembly component 5300, the second assembly component 5300 is configured to limit the axial movement of the roller brush 5100 after at least partially accommodating the first assembly component 5200, the second assembly component 5300 has a second limiting member 5310, and the second limiting member 5310 is rotatably disposed on the second assembly component 5300; wherein, after the first assembly component 5200 is at least partially assembled on the second assembly component 5300, the first limiting member 5210 and the second limiting member 5310 cooperate to achieve locking. After the first assembly component 5200 is assembled on the second assembly component 5300, Figure 4 , Figure 5 As shown, the first limiting member 5210 and the second limiting member 5310 are locked in the second assembly component 5300 and maintained in a locked state by the elastic member 5340 .

[0065] refer to Figure 3 , Figure 4 , Figure 5 It can be understood that the roller brush axial limit device provided by the present disclosure maintains a tightly axially coupled state with the roller brush, and the roller brush can be axially locked inside the roller brush through the cooperation of the first limit member and the second limit member, thereby preventing the roller brush from axially moving, reducing the number of axial limit mechanism components, and fundamentally reducing the costs of production, assembly, transportation, etc. Since the roller brush axial limit device is arranged inside the roller brush, the space occupied by the axial limit mechanism is reduced, thereby increasing the amount of interference of the roller brush with the ground, thereby increasing the cleaning efficiency.

[0066] In some embodiments, Figure 5 and Figure 6 As shown, the first assembly component 5200 includes an insertion portion, and the second assembly component 5300 includes a receiving cavity 5390. The insertion portion and the receiving cavity 5390 have matching shapes. After the insertion portion is inserted into the receiving cavity 5390, the first assembly component 5200 and the second assembly component 5300 are assembled.

[0067] In some embodiments, Figure 5 and Figure 6As shown, the first assembly component 5200 includes a first accommodating portion 5250, and the first limiting member 5200 includes a first locking portion 5211, and the first locking portion 5211 is rotatably disposed in the first accommodating portion 5250; the second assembly component 5300 includes a second accommodating portion 5320, and the second limiting member 5300 includes a second locking portion 5311, and the second locking portion 5311 is rotatably disposed in the second accommodating portion 5320; wherein, after the first assembly component 5200 is at least partially assembled in the second assembly component 5300, the first locking portion 5211 and the second locking portion 5311 cooperate to achieve locking.

[0068] In some embodiments, Figure 5 , 6 As shown, the first accommodating portion 5250 is an arc-shaped structure, and the first locking portion 5211 is an arc-shaped structure with the same curvature as the first accommodating portion 5250, so as to ensure that the first locking portion 5211 can rotate freely in the first accommodating portion 5250; in some embodiments, the second accommodating portion 5320 is an arc-shaped structure, and the second locking portion 5311 is an arc-shaped structure with the same curvature as the second accommodating portion 5320, so as to ensure that the second locking portion 5311 can rotate freely in the second accommodating portion 5320. In some embodiments, the curvatures of the first accommodating portion 5250, the first locking portion 5211, the second accommodating portion 5320, and the second locking portion 5311 are substantially the same. Thus, after the first assembly component 5200 is assembled to the second assembly component 5300, the first receiving portion 5250 and the second receiving portion 5320 are aligned, the first locking portion 5211 can be rotated to the second receiving portion 5320, and the second locking portion 5311 can be rotated into the first receiving portion 5250, so as to achieve locking in the axial direction. Optionally, the first receiving portion 5250 and the second receiving portion 5320 are semicircular arc structures, the first locking portion 5211 and the second locking portion 5311 are hemispherical structures, of course, the first receiving portion 5250 and the second receiving portion 5320 can also be elliptical or other arc structures, the first locking portion 5211 and the second locking portion 5311 can also be elliptical or other arc structures, and there is no strict limitation on this.

[0069] In some embodiments, Figure 5 and Figure 6As shown, the first assembly member 5200 includes a first through slot 5260, which communicates with the first accommodating portion 5250 and the outside of the first assembly member 5200; the first stopper 5210 includes a first extension portion 5212, which is configured to extend from the first through slot 5260. When the first assembly member 5200 and the second assembly member 5300 need to be unlocked, the first extension portion 5212 is pushed from the outside to the inside along the axial direction, and the first extension portion 5212 rotates to drive the first locking portion 5211 to rotate until the contact surfaces of the first locking portion 5211 and the second locking portion 5311 are in a horizontal state and then unlocked, and then the roller brush 5100 is pulled so that the second assembly member 5300 and the roller brush 5100 are pulled out of the first assembly member 5200 together. Optionally, the diameter of the first through slot 5260 on the side close to the first accommodating portion 5250 is smaller than the diameter of the side away from the first accommodating portion 5250, so that the outside of the first extension portion 5212 has a larger moving space. Optionally, the first extension portion 5212 and the first locking portion 5211 are integrally formed or separately formed, wherein the first extension portion 5212 has a pressing portion that leaks out of the first through slot 5260 for the user to move.

[0070] In some embodiments, Figure 5 and Figure 6As shown, the second assembly member 5300 includes a second through slot 5330, which is connected to the second accommodating portion 5320; the second stopper 5310 includes a second extension portion 5312, which is configured to extend from the second through slot 5330. When the first assembly member 5200 and the second assembly member 5300 need to be unlocked, the first extension portion 5212 is pushed from the outside to the inside along the axial direction, and the first extension portion 5212 rotates to drive the first locking portion 5211 to rotate, and the first locking portion 5211 drives the second locking portion 5311 to rotate until the contact surface of the first locking portion 5211 and the second locking portion 5311 is in a horizontal state and then unlocked, and then the roller brush 5100 is pulled so that the second assembly member 5300 and the roller brush 5100 are pulled out of the first assembly member 5200 together. Thereafter, the second locking portion 5311 rotates to an inclined state under the pulling force of the elastic member 5340. Optionally, the diameter of the second through slot 5330 on the side close to the second accommodating portion 5320 is smaller than the diameter on the side away from the second accommodating portion 5320, so that the outer side of the second extension portion 5312 has a larger rotational movement space. Optionally, the second extension portion 5312 and the second locking portion 5311 are integrally formed or separately formed, wherein the second extension portion 5312 has a connection notch connected to the elastic member 5340, and the connection notch faces the side away from the elastic member 5340. Optionally, when the second extension portion 5312 rotates to the leftmost end, the opening of the connection notch still faces the side away from the elastic member 5340 to prevent the elastic member 5340 from falling out.

[0071] In some embodiments, Figure 3-Figure 6 As shown, the second assembly member 5300 further includes: a positioning member 5360, which is disposed at one end of the second assembly member 5300 away from the second stopper 5310, and has an opening facing the side away from the second stopper 5310; and an elastic member 5340, which is connected between the positioning member 5360 and the second extension 5312, and is configured to provide a locking force to the second stopper 5310. The elastic member 5340 can be any element with an elastic function, such as a spring, an elastic rope, etc., and the elastic member 5340 always has a pulling force to tighten the second stopper 5310.

[0072] In some embodiments, Figure 6As shown, the first assembly component 5200 includes a first pushing portion 5270, which can be an inclined surface and is configured to, when the second assembly component 5300 is axially inserted into the first assembly component 5200, push the inclined plane of the second limiting member 5310 through the first pushing portion 5270 to rotate it so that it can cooperate with the first limiting member 5210 to achieve locking; the second assembly component 5300 includes a second pushing portion 5380, which can be an inclined surface and is configured to, when the first assembly component 5200 is inserted into the second assembly component 5300, push the inclined plane of the first limiting member 5210 so that it can rotate it so that it can cooperate with the second limiting member 5310 to achieve locking.

[0073] In some embodiments, Figure 6 As shown, the second assembly component 5300 also includes a second limiting plate 5370, which is arranged on the end surface of the second assembly component 5300 facing the first assembly component 5200, and the second limiting plate 5370 has a diameter greater than the second assembly component 5300 body, or the second limiting plate 5370 has a diameter greater than the inner diameter of the roller brush 5100, so that when the second assembly component 5300 is assembled into the roller brush 5100, it is locked with the end of the roller brush 5100 to limit the axial movement of the roller brush.

[0074] In some embodiments, Figure 5-Figure 6 As shown, the second limiting plate 5370 includes a recessed portion 5371; the first assembly member 5200 includes a first limiting plate 5240, and after the first assembly member 5200 is assembled to the second assembly member 5300, the first limiting plate 5240 is assembled to the recessed portion 5371. Optionally, after the first limiting plate 5240 is assembled to the recessed portion 5371, it is substantially flush with the surface of the second limiting plate 5370, so that the first assembly member 5200 is stuck in the recessed portion 5371.

[0075] In some embodiments, Figure 5-Figure 6 As shown, the first assembly member 5200 further includes an adapter portion 5230, which is disposed on a side of the first assembly member 5200 away from the first stopper 5210. The adapter portion 5230 is a polygonal column structure or a plum blossom structure. The adapter portion 5230 is used to connect with a driving device or a gearbox output shaft of the driving device, receive the driving force of the driving device to rotate, and drive the first assembly member 5200, the second assembly member 5300 and the roller brush 5100 to rotate.

[0076] In some embodiments, Figure 3As shown, the second assembly component 5300 also includes at least one limiting edge 5350, which extends axially along the second assembly component 5300. The inner wall of the roller brush 5100 has a sliding groove corresponding to the limiting edge 5350. After the limiting edge 5350 is inserted along the sliding groove, the second assembly component 5300 is assembled on the roller brush 5100 and is limited in the circumferential direction.

[0077] In some embodiments, the second assembly component and the roller brush are integrally formed or form a non-detachable structure or a detachable but fixedly connected structure. In this case, the roller brush 5100 can be assembled or disassembled by simply assembling or disassembling the second assembly component 5300, which has a simple structure and is easy to operate.

[0078] like Figure 7 As shown in FIG. 1 , a schematic diagram of assembling the second assembly component 5300 into the first assembly component 5200 is given. The specific process is as follows: Figure 7 As shown in (a), the second assembly member 5300 is inserted into the first assembly member 5200 along the axial direction. At this time, the second abutting portion 5380 of the second assembly member 5300 contacts the inclined plane of the first limiting member 5210, and as the first assembly member 5200 continues to be inserted into the second assembly member 5300, the second abutting portion 5380 pushes against the inclined plane of the first limiting member 5210 and rotates it until the horizontal plane of the first locking portion 5211 rotates from inclined to horizontal and then enters the second assembly member 5300, as shown in FIG. Figure 7 As shown in (b); as the second assembly member 5300 continues to be inserted into the first assembly member 5200 along the axial direction, the first push portion 5270 of the first assembly member 5200 contacts the inclined plane of the second limit member 5310, and as the second assembly member 5300 continues to be inserted into the first assembly member 5200 along the axial direction, the first push portion 5270 pushes against the inclined plane of the second limit member 5310 and rotates it until the horizontal plane of the second locking portion 5311 rotates from inclined to horizontal, as shown in FIG. Figure 7 (b); after the plane of the first locking portion 5211 and the plane of the second locking portion 5311 are aligned, under the pulling of the elastic member 5340, the first locking portion 5211 rotates into the second accommodating portion 5320, and the second locking portion 5311 rotates into the first accommodating portion 5250 until the second protruding portion 5312 abuts against the side of the second through groove 5330 close to the elastic member 5340, and finally the first limiting member 5210 and the second limiting member 5310 are locked, as shown in FIG. Figure 7 As shown in (c), at this time, the first extension portion 5212 also rotates to a position roughly flush with the second limiting plate 5370, avoiding affecting the axial insertion of the first assembly component 5200 into the second assembly component 5300.

[0079] like Figure 8As shown in FIG. 1 , a schematic diagram of unlocking the first assembly member 5200 and the second assembly member 5300 is provided. The specific process is as follows: the first extension portion 5212 is pressed toward the roller brush direction, so that the contact surface of the first locking portion 5211 and the second locking portion 5311 rotates from an inclined state to a horizontal state, as shown in FIG. Figure 8 As shown in (a), at this time, the roller brush 5100 and the second assembly member 5300 can be pulled axially until the first assembly member 5200 and the second assembly member 5300 are separated. At this time, the second stopper 5310 is rotated from the horizontal state to the inclined state under the pulling force of the elastic member 5340, as shown in FIG. Figure 8 (b) as shown.

[0080] In some embodiments, the present application also provides a cleaning brush, including a roller brush axial limiting device as described in any of the above embodiments. The specific structure of the roller brush refers to the relevant technology and will not be described here.

[0081] In some embodiments, the present application also provides an automatic cleaning device, including a roller brush or a cleaning brush as described in the above embodiments, and other structures of the automatic cleaning device are not described here.

[0082] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. For the system or device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description.

[0083] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A roller brush axial limiting device, characterized in that: include: A first assembly component is configured to output a driving force after being connected to a driving device, wherein the first assembly component has a first limiter, and the first limiter is rotatably disposed on the first assembly component; A second assembly component is configured to limit the axial movement of the roller brush after at least partially accommodating the first assembly component, the second assembly component having a second limiter, and the second limiter is rotatably disposed on the second assembly component; Wherein, after the first assembly component is at least partially assembled to the second assembly component, the first limiting member and the second limiting member cooperate to achieve locking.

2. The roller brush axial limiting device according to claim 1, characterized in that: The first assembly component includes a first accommodating portion, the first limiting member includes a first locking portion, and the first locking portion is rotatably disposed on the first accommodating portion; The second assembly member includes a second accommodating portion, the second limiting member includes a second locking portion, and the second locking portion is rotatably disposed on the second accommodating portion; Wherein, after the first assembly component is at least partially assembled to the second assembly component, the first locking portion and the second locking portion cooperate to achieve locking.

3. The roller brush axial limiting device according to claim 1, characterized in that: The first assembly member includes a first pushing portion configured to push the second limiting member to make it cooperate with the first limiting member to achieve locking; The second assembly component includes a second pushing portion configured to push the first limiting member to cooperate with the second limiting member to achieve locking.

4. The roller brush axial limiting device according to claim 2, characterized in that: The first accommodating portion is an arc-shaped structure, and the first locking portion is an arc-shaped structure with the same curvature as the first accommodating portion; and / or the second accommodating portion is an arc-shaped structure, and the second locking portion is an arc-shaped structure with the same curvature as the second accommodating portion.

5. The roller brush axial limiting device according to claim 4, characterized in that: The first accommodating portion, the first locking portion, the second accommodating portion, and the second locking portion have substantially the same curvature.

6. The roller brush axial limiting device according to claim 2, characterized in that: The first assembly member includes a first through groove, and the first through groove is connected to the first accommodation portion; The first position-limiting member includes a first extending portion, and the first extending portion is configured to extend from the first through slot.

7. The roller brush axial limiting device according to claim 2, characterized in that: The second assembly member includes a second through groove, and the second through groove is connected to the second receiving portion; The second position-limiting member includes a second extending portion, and the second extending portion is configured to extend from the second through slot.

8. The roller brush axial limiting device according to claim 7, characterized in that: The second assembly component also includes: A positioning member, arranged at an end of the second assembly member away from the second limiting member; An elastic member is connected between the positioning member and the second extending portion and is configured to provide a locking force to the second limiting member.

9. The roller brush axial limiting device according to claim 1, characterized in that: The second assembly component further includes: a second limiting plate, which is arranged on the end surface of the second assembly component facing the first assembly component and is configured to limit the axial movement of the roller brush.

10. The roller brush axial limiting device according to claim 9, characterized in that: The second limiting plate includes a recessed portion; The first assembly component includes a first limiting plate. After the first assembly component is assembled to the second assembly component, the first limiting plate is assembled to the recessed portion.

11. The roller brush axial limiting device according to claim 1, characterized in that: The first assembly component further includes an adapting portion, which is arranged on a side of the first assembly component away from the first limiting member.

12. The roller brush axial limiting device according to claim 11, characterized in that: The adapter portion is a polygonal column structure or a plum blossom structure.

13. The roller brush axial limiting device according to claim 1, characterized in that: The second assembly component further includes: at least one limiting edge extending axially along the second assembly component and configured to limit the position in the circumferential direction after being assembled on the roller brush.

14. The roller brush axial limiting device according to claim 1, characterized in that: The second assembly component is formed integrally with the roller brush.

15. A cleaning brush, characterized in that: The invention comprises the roller brush axial limiting device according to any one of claims 1 to 14.

16. An automatic cleaning device, characterized in that: Comprising the cleaning brush of claim 15.

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