Automatic cleaning device and system

Abstract

The automatic cleaning device is configured to automatically move an operating surface, and includes a moving platform (100) including a cover plate (200), and a button assembly (400) assembled to the cover plate (200), the button assembly (400) includes a button cap (410) and a bracket (420), the button cap (410) is assembled to the bracket (420), where the bracket (420) and the cover plate (200) are integrally molded. The button cap (410) includes a button cap pressing part (411) and a button cap skirt (412), the button cap (410) is directly assembled to the integrally molded bracket (420), and the decorative cover (300) provided on the top surface of the cover plate (200) is pressed and fixed by the button cap skirt (412), which simplifies the installation structure of the button cap assembly (400) and is convenient for pre-assembly and subsequent maintenance.

Description

Technical Field

[0001] (Related Application) This application claims the priority of Chinese Patent Application No. 202220023511.5 filed on January 5, 2022, and all the disclosure contents of the above Chinese patent application are incorporated herein by reference as part of this application.

[0002] This application relates to the technical field of cleaning robots, specifically to automatic cleaning devices and systems.

Background Art

[0003] In modern life, cleaning robots are becoming increasingly popular, bringing convenience to household life. There are cleaning robots, mopping robots, and integrated cleaning and mopping robots, etc. With the popularization of cleaning robots, the functions and structures of cleaning robots have become more complex, and the production costs have become higher and higher. s

[0004] In the existing technology, some cleaning robots have added structures and functions such as automatic charging, automatic dust removal, lifting and vibration, making the cleaning robots more intelligent while increasing the complexity of each component, which is inconvenient for subsequent maintenance and inspection.

Summary of the Invention

[0005] According to a specific embodiment of the present application, the present application provides an automatic cleaning device, which is configured to automatically move on an operation surface and includes a moving platform including a cover plate and a button assembly assembled on the cover plate. The button assembly includes a button cap and a bracket, the button cap is assembled on the bracket, and here, the bracket and the cover plate are integrally formed.

[0006] In some embodiments, the button cap includes a button cap pressing portion and a button cap skirt, and the button cap skirt is provided around the button cap pressing portion.

[0007] In some embodiments, the invention further includes a decorative cover provided on the top surface of the cover plate, the decorative cover having a mounting hole that matches the shape of the button cap pressing portion, and when the button cap is assembled to the bracket, the edge of the mounting hole is pressed against the button cap skirt.

[0008] In some embodiments, the cover plate includes a button cap mounting portion that substantially matches the contour of the button cap skirt, and when the button cap is attached to the bracket, the button cap skirt and the button cap mounting portion are in close contact, and the upper surface of the button cap skirt and the upper surface of the cover plate are substantially flush or slightly higher than the upper surface of the cover plate.

[0009] In some embodiments, the button cap mounting portion includes a groove extending along the circumferential direction of the edge, and the button cap skirt includes a protruding edge extending along the circumferential direction of the edge, the protruding edge being inserted into the groove when the button cap is attached to the bracket.

[0010] In some embodiments, the inner and / or outer sides of the protruding edge include at least one projection.

[0011] In some embodiments, the button cap mounting portion includes two symmetrically arranged button holes, and the bracket is integrally formed with the button holes.

[0012] In some embodiments, the button cap further includes a first projection and a second projection provided on the lower surface of the button cap pressing portion, and when the button cap is assembled to the bracket, the first projection and the second projection perform pressing through the bracket.

[0013] In some embodiments, the first projection and the second projection each include a columnar structure extending downward along the lower surface of the button cap pressing portion and a conical structure extending downward along the columnar structure, with a flat structure formed at the connection point between the columnar structure and the conical structure.

[0014] In some embodiments, the bracket includes at least one elastic arm and a button ring connected via the at least one elastic arm, wherein the button ring is configured such that the conical structure passes through the button ring and then abuts against the flat structure, and the elastic arm is configured to return the button ring to its original position.

[0015] In some embodiments, the bracket includes at least one elastic arm and a button plate connected via the at least one elastic arm, wherein the button plate is configured to transmit pressing force via the first projection and the second projection when the button cap is pressed, and the elastic arm is configured to return the button plate to its original position.

[0016] In some embodiments, the lower surface of the button plate includes a conical projection, and pressing is performed via this conical projection.

[0017] In some embodiments, the invention further includes a switch element, which is configured to be triggered by pressing on the conical structure or the conical projection. [Effects of the Invention]

[0018] Compared to the prior art, the embodiments of this application have the following technical advantages.

[0019] This invention provides an automatic cleaning device in which a button assembly is assembled to a cover plate of the automatic cleaning device, the button assembly includes a button cap and a bracket, the button cap includes a button cap pressing portion and a button cap skirt, the bracket and the cover plate are integrally molded, the button cap is directly assembled onto the integrally molded bracket, and the decorative plate is fixed by pressing the button cap skirt, thereby simplifying the mounting structure of the button cap assembly overall and making it convenient for pre-assembly and subsequent maintenance.

[0020] The accompanying drawings herein are incorporated into this specification and constitute part of this specification, illustrating embodiments conforming to the disclosure and are used together with the specification to interpret the principles of the disclosure. Clearly, the accompanying drawings in the following description are only a few embodiments of the disclosure, and those skilled in the art can, without creative work, derive other drawings based on these accompanying drawings. [Brief explanation of the drawing]

[0021] [Figure 1] Perspective view of an automatic cleaning device according to several embodiments of the present application [Figure 2] Schematic diagram of the bottom structure of an automatic cleaning device according to several embodiments of the present invention [Figure 3] Schematic diagram of the assembly structure of a button assembly for an automatic cleaning device according to several embodiments of the present invention. [Figure 4] Schematic diagram of an automatic cleaning device according to several embodiments of the present invention, viewed from above the button cap. [Figure 5a] A schematic diagram of the button cap of an automatic cleaning device according to several embodiments of the present invention, viewed from below. [Figure 5b] Schematic diagram of an automatic cleaning device according to some other embodiments of the present invention, viewed from below the button cap. [Figure 6] Schematic diagram of the decorative cover of an automatic cleaning device according to several embodiments of the present invention, viewed from above. [Figure 7] Schematic diagram of the cover plate structure of an automatic cleaning device according to several embodiments of the present invention [Figure 8a] Schematic diagram of the enlarged structure above the button bracket of the automatic cleaning device according to some embodiments of the present application [Figure 8b] Schematic diagram of the enlarged structure below the button bracket of the automatic cleaning device according to some embodiments of the present application [Figure 9] Schematic diagram of the assembly structure of the button assembly of the automatic cleaning device according to some embodiments of the present application [Figure 10] Schematic diagram of the cross-sectional structure of the button assembly of the automatic cleaning device according to some embodiments of the present application

Description of Reference Numerals

[0022] 100 Moving platform 110 Rear part 111 Front part 120 Sensing system 121 Positioning device 122 Buffer 123 Cliff sensor 130 Control system 140 Driving system 141 Driving wheel assembly 142 Direction changing assembly 150 Cleaning module 151 Dry cleaning module 152 Side brush 153 Main brush module 300 Dust box 500 Filter [ 160 Energy system 170 Man-machine interaction system 200 Cover plate 400 Button assembly 410 Button cap ​​​​​​​​​​​ 413 Protruding edge 414 Protrusion 212 buttonholes 421 Elastic Arm 422 Button Ring 417 1st protrusion 418 Second protrusion 4181 Columnar structure 4182 Conical structure 4183 Flat structure 423 Button Plate 4231 Pressing part 4232 Conical projection [Modes for carrying out the invention]

[0023] To further clarify the purpose, technical solutions, and advantages of this disclosure, the disclosure will be described in more detail below with reference to the accompanying drawings, although obviously the embodiments described are only a selection of the embodiments of this disclosure, not all of them. Any other embodiments that a person skilled in the art could obtain without creative work based on the embodiments of this disclosure are all covered by this disclosure.

[0024] The terms used in the embodiments of this disclosure are used solely for the purpose of describing specific embodiments and are not intended to limit the disclosure. The singular forms “one,” “the said,” and “the said” as used in the embodiments of this disclosure and the appended claims are also intended to include plural forms, and “plural” generally includes at least two unless the context explicitly indicates otherwise.

[0025] The terms "and / or" as used herein merely describe the relationship between related objects, and there are three possible relationships. For example, A and / or B means that A may exist alone, A and B may exist simultaneously, or B may exist alone. In addition, " / " in this specification generally indicates that the preceding and succeeding related objects are in an "or" relationship.

[0026] In the embodiments of this disclosure, terms such as First, Second, Third, etc., may be used for illustrative purposes, but it should be understood that these terms should not be used as a limiting factor. These terms are used solely for distinction. For example, the First may also be called the Second, and similarly, the Second may also be called the First, as long as it does not deviate from the scope of the embodiments of this disclosure.

[0027] Furthermore, the terms “includes,” “equipped with,” or any other variations thereof are intended to cover non-exclusive inclusion, and it should be noted that a product or apparatus containing a set of elements includes not only those elements but also other elements explicitly listed, or elements specific to those products or apparatus. Unless further limited, an element defined by the expression “includes…” does not exclude the presence of other identical elements in a product or apparatus containing such element.

[0028] Selective embodiments of this disclosure will be described in detail below with reference to the attached drawings.

[0029] Figures 1 and 2 are schematic diagrams of an automated cleaning device according to an exemplary embodiment. As shown in Figures 1 and 2, the automated cleaning device may be a vacuum cleaning robot, a mopping / brushing robot, a window climbing robot, etc., and consists of a mobile platform 100, a sensing system 120, a control system 130, a drive system 140, a cleaning module 150, an energy system 160, and a human-machine interactive system 170.

[0030] The mobile platform 100 may be configured to automatically move its operating surface in the direction of a target. The operating surface may be a surface to be cleaned by the automatic cleaning device. In some embodiments, if the automatic cleaning device is a mopping robot, the automatic cleaning device works on a floor surface, and the floor surface is the operating surface; if the automatic cleaning device is a window cleaning robot, the automatic cleaning device works on the outer surface of a building's glass, and the glass is the operating surface; if the automatic cleaning device is a pipe cleaning robot, the automatic cleaning device works on the inner surface of a pipe, and the inner surface of the pipe is the operating surface. For purely illustrative purposes, the present invention will describe an example of a mopping robot.

[0031] In some embodiments, the mobile platform 100 may be an autonomous mobile platform or a non-autonomous mobile platform. An autonomous mobile platform means that the mobile platform 100 itself can automatically and adaptively make operational decisions in response to unexpected environmental inputs, while a non-autonomous mobile platform itself cannot adaptively make operational decisions in response to unexpected environmental inputs but can operate according to predetermined procedures or certain logic. Accordingly, if the mobile platform 100 is an autonomous mobile platform, the target direction may be determined autonomously by the automatic cleaning device, while if the mobile platform 100 is a non-autonomous mobile platform, the target direction may be set by the system or manually. If the mobile platform 100 is an autonomous mobile platform, it consists of a front portion 111 and a rear portion 110.

[0032] The sensing system 120 includes a position determination device 121 located above the mobile platform 100, a buffer 122 located on the front portion 111 of the mobile platform 100, a cliff sensor 123 located at the bottom of the mobile platform, and sensing 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), which provide the control system 130 with various position information and movement status information of the equipment.

[0033] To more clearly describe the behavior of the automatic cleaning device, the following directions are defined. The automatic cleaning device can move on the floor surface by various combinations of movement along three mutually perpendicular axes: the lateral axis Y, the longitudinal axis X, and the central vertical axis Z, defined by the moving platform 100. The forward drive direction along the longitudinal axis X is denoted as "forward," and the rearward drive direction along the longitudinal axis X is denoted as "rear." The lateral axis Y extends between the right and left wheels of the automatic cleaning device along the axis center defined substantially by the center point of the drive wheel assembly 141. Here, the automatic cleaning device can rotate around the Y axis. When the front part of the automatic cleaning device tilts upward and the rear part tilts downward, it is called "pitch up," and when the front part of the automatic cleaning device tilts downward and the rear part tilts upward, it is called "pitch down." Furthermore, the automatic cleaning device can rotate around the Z axis. In the forward direction of the automatic cleaning device, "right rotation" is defined as the automatic cleaning device tilting to the right along the X-axis, and "left rotation" is defined as the automatic cleaning device tilting to the left along the X-axis.

[0034] As shown in Figure 2, cliff sensors 123 are provided at the bottom of the mobile platform 100 and in front of and behind the drive wheel assembly 141. These cliff sensors prevent the automatic cleaning device from falling when it is reversing, thus preventing damage to the automatic cleaning device. "Front" refers to the side in the same direction as the automatic cleaning device's direction of travel, and "rear" refers to the side opposite to the direction of travel of the automatic cleaning device.

[0035] Specific types of position determination devices 121 include, but are not limited to, cameras and laser distance measuring devices (LDS).

[0036] Each assembly in the sensing system 120 may operate independently or cooperate to more accurately achieve its purpose and function. The cliff sensor 123 and ultrasonic sensor can identify the surface to be cleaned, determine the physical characteristics of the surface to be cleaned, including the surface material and cleanliness, and make more accurate determinations in combination with a camera, laser rangefinder, etc.

[0037] For example, an ultrasonic sensor may be used to determine whether or not the surface to be cleaned is carpeted. If the ultrasonic sensor determines that the surface to be cleaned is carpeted, the control system 130 may control the automatic cleaning device to perform cleaning in carpet mode.

[0038] A buffer 122 is provided on the front portion 111 of the mobile platform 100, and when the drive wheel assembly 141 propels the automatic cleaning device across the floor during the cleaning process, the buffer 122 may detect one or more events (or objects) in the path of the automatic cleaning device via a sensor system, such as an infrared sensor, and the automatic cleaning device may, by means of the buffer 122, detect the events (or objects), such as obstacles or walls, and in response to the events (or objects), control the drive wheel assembly 141 to move away from, for example, the obstacle.

[0039] The control system 130 is provided on a circuit board within the mobile platform 100 and includes a central processing unit that communicates with non-temporary memory such as a hard disk, flash memory, and random access memory, as well as an application processor. The application processor receives environmental information sensed by the multiple sensors from the sensing system 120, obstacle information fed back from a laser rangefinder, and other information. It uses a position determination algorithm, such as SLAM, to draw an instant map of the environment in which the automatic cleaning device is installed. Based on the environmental information and the environmental map, it autonomously determines a travel path. Subsequently, it controls operations such as forward, reverse, and / or change of direction of the drive system 140 according to the autonomously determined travel path. Furthermore, the control system 130 can decide whether or not to activate the cleaning module 150 to perform a cleaning operation based on the environmental information and the environmental map.

[0040] Specifically, the control system 130 combines distance and speed information fed back from sensing devices such as the shock absorber 122, cliff sensor 123, ultrasonic sensor, infrared sensor, magnetometer, accelerometer, gyroscope, and odometer to comprehensively determine the current working state of the vacuum cleaner, such as crossing a threshold, riding on a carpet, being located on a cliff, being stuck above or below, having a full dustbin, or being lifted. It then provides a specific next action strategy according to the different situations, ensuring that the automatic cleaning device better meets the owner's requirements and provides a better user experience. Furthermore, the control system can plan the most efficient and rational cleaning path and cleaning method according to the instant map information drawn by SLAM, thereby significantly improving the cleaning efficiency of the automatic cleaning device.

[0041] The drive system 140 can execute drive commands based on specific distance and angle information such as x, y, and θ components to operate the automatic cleaning device and make it travel across the floor surface. As shown in Figure 2, the drive system 140 includes a drive wheel assembly 141, and the drive system 140 can control the left and right wheels simultaneously. To control the operation of the device more precisely, it is preferable that the drive system 140 consists of a left drive wheel assembly and a right drive wheel assembly, respectively. The left and right drive wheel assemblies are arranged symmetrically along the transverse axis defined by the moving platform 100.

[0042] To enable the automatic cleaning device to move more stably across the floor surface or to have a higher mobility, the automatic cleaning device may include one or more steering assemblies 142, the steering assemblies 142 may be driven wheels or driving wheels, and their structural form may include, but is not limited to, universal wheels, and the steering assemblies 142 may be located in front of the driving wheel assemblies 141.

[0043] The energy system 160 includes rechargeable batteries such as nickel-metal hydride batteries and lithium batteries. The rechargeable batteries may be connected to a charging control circuit, a battery pack charging temperature detection circuit, and a battery voltage drop monitoring circuit, and the charging control circuit, battery pack charging temperature detection circuit, and battery voltage drop monitoring circuit are connected to a microcontroller control circuit. The host computer is connected to the charging pile for charging via charging electrodes provided on the side or bottom of the main unit. There is a problem that dust adheres to the exposed charging electrodes, and during the charging process, the cumulative effect of the charge causes the plastic body around the electrodes to melt and deform, and consequently the electrodes themselves deform, making it impossible to continue charging normally.

[0044] The man-machine interactive system 170 includes buttons on a host panel, which are available for the user to select functions. The man-machine interactive system 170 may further include a display screen and / or indicator lights and / or a speaker, which can display the current status of the device or function options to the user. The man-machine interactive system 170 may further include a mobile phone client program. In the case of a route-navigation type automatic cleaning device, the mobile phone client can display to the user a map of the environment in which the device is installed and the location of the device, providing the user with a richer and more user-friendly set of functions.

[0045] As shown in Figure 2, the cleaning module 150 may include a dry cleaning module 151.

[0046] The dry cleaning module 151 includes a roller brush, dust box, fan, and air outlet. The roller brush, which interferes to some extent with the floor surface, sweeps debris from the floor surface forward to the dust intake port between the roller brush and the dust box, and sucks it into the dust box via a gas with suction force generated by the fan that passes through the dust box. The dust removal capacity of a vacuum cleaner is indicated by the dust pickup efficiency (DPU), which is influenced by the roller brush structure and material, the airflow utilization rate of the duct consisting of the dust intake port, dust box, fan, air outlet and connecting members between them, and the type and power of the fan, making it a complex system design issue. Compared to a normal plug-in dust collector, improved dust removal capacity is of great significance to energy-constrained automatic cleaning devices. This is because improved dust removal capacity directly and effectively reduces energy requirements, meaning that a machine that can clean 80 square meters of floor space on a single charge can be improved to clean 180 square meters or more on a single charge. Furthermore, reducing the number of charging cycles significantly extends battery life, allowing users to reduce the frequency of battery replacement. More intuitive and importantly, the improved dust removal capability is the most obvious and significant user experience, allowing users to directly conclude whether the device cleans or wipes cleanly. The dry cleaning module may further include a side brush 152 having a rotating axis, which is at a certain angle to the floor surface and moves the debris to the roller brush area of ​​the cleaning module 150.

[0047] The automatic cleaning device may further include a wet cleaning module as a selectable cleaning module, configured to clean at least a portion of the operating surface using a wet cleaning method, wherein the wet cleaning module includes a water tank, a cleaning head, a drive unit, etc., wherein water from the water tank flows along a channel to the cleaning head, and the cleaning head cleans at least a portion of the operating surface under the drive of the drive unit.

[0048] The pressing structure on the cover of existing automatic cleaning devices is complex. For example, most existing cleaning device button structures consist of a hard rubber bracket with a soft rubber bracket attached, a hard rubber button cap and a soft rubber bracket bonded together, then the soft rubber bracket and the decorative cover of the upper housing of the device are bonded together with double-sided adhesive tape, and the hard bracket is fixed to the upper housing via a hook on the lower side. Such button assembly structures are complex, have many parts, take a long time to assemble, the process is complicated, and the cost is high. Due to this multi-layer structure, when attaching the soft rubber bracket to the decorative cover of the upper housing of the device, the positioning by the soft rubber is prone to shifting, making it difficult to attach and detach the button. Furthermore, because the double-sided adhesive tape and soft rubber are strongly bonded during attachment and detachment, the double-sided adhesive tape and soft rubber are prone to breakage, making it impossible to reuse the button.

[0049] Therefore, embodiments of the present application provide an automatic cleaning device that simplifies the unnecessary components of the button assembly of the automatic cleaning device, so that the button assembly can achieve the functions of sealing and waterproofing, light guiding and light shielding of the button with just one part, and at the same time, the assembly, disassembly, and maintenance of the button can be made more convenient. Specifically, according to a specific embodiment of the present application, as shown in Figure 3, the present application provides an automatic cleaning device which includes a mobile platform 100, the mobile platform 100 is configured to automatically move its operating surface, the mobile platform 100 includes a cover plate 200, the cover plate 200 constitutes at least a part of the mobile platform 100, and the cover plate 200 is the upper housing of the mobile platform 100 housing. Typically, the mobile platform 100 includes a front part and a rear part, the front part is used to mount touch buttons and the like, and the rear part is used to mount dust boxes and the like. The automatic cleaning device further includes a button assembly 400, which is assembled to the cover plate 200, and the button assembly 400 is configured to form control to the automatic cleaning device after being touched by a user, and the button assembly 400 includes a flexible button cap 410 and a rigid bracket 420, the button cap 410 is assembled to the bracket 420 to perform pressing. As shown in Figure 4, the button cap 410 includes a button cap pressing portion 411 and a button cap skirt 412, the button cap skirt 412 is formed to surround the periphery of the button cap pressing portion 411, the button cap pressing portion 411 and the button cap skirt 412 have an upper and lower stacked structure, the button cap pressing portion 411 is located on the upper layer of the button cap skirt 412 and is convenient for performing pressing, and the outer casings of the button cap pressing portion 411 and the button cap skirt 412 may be circular, square, rectangular, elliptical, D-shaped or other shapes, and are not particularly limited. Here, as shown in Figure 8a, the bracket 420 and the cover plate 200 are integrally molded, and the integral molding process is, for example, injection molding or press molding using a die in a later stage.The integrally molded bracket 420 eliminates the step of assembling the bracket and cover plate 200 during the button assembly process, avoiding problems of light and water leakage caused by too many assembly steps, and simultaneously improving the assembly efficiency of the button assembly. In some embodiments, as shown in Figures 3 and 6, the automatic cleaning device further includes a decorative cover 300 provided on the top surface of the cover plate 200, the decorative cover 300 is typically configured to conceal irregular parts on the top of the moving platform 100, serving an aesthetic and protective purpose. As shown in Figure 6, the decorative cover 300 includes a mounting hole 310 that matches the shape of the button cap pressing portion 411, and when the button cap 410 is assembled to the bracket 420, the button cap pressing portion 411 passes through the mounting hole 310, and at the same time, the edge of the mounting hole 310 is pressed against the button cap skirt 412. In this way, a tight connection is achieved between the mounting hole 310 and the button cap pressing portion 411, avoiding problems of light leakage and water leakage. Selectively, the button cap pressing portion 411 can pass through the mounting hole 310 with a tightening allowance, further avoiding problems of light leakage and water leakage.

[0050] In some embodiments, as shown in Figure 7, the cover plate 200 includes a button cap mounting portion 210 that substantially matches the contour of the button cap skirt, the button cap mounting portion 210 being roughly recessed, the recessed contour being circular, square, rectangular, elliptical or D-shaped, and not particularly limited. When the button cap 400 is attached to the bracket 420, the button cap skirt 412 and the button cap mounting portion 210 are in close contact, and the upper surface of the button cap skirt 412 and the upper surface of the cover plate 200 are substantially flush or slightly higher than the upper surface of the cover plate 200. When performing the installation, first place the button cap on the button cap mounting portion 210 and press the decorative cover 300 against the button cap skirt 412. The upper surface of the button cap skirt 412 and the upper surface of the cover plate 200 are substantially flush or slightly higher than the upper surface of the cover plate 200. The decorative cover 300 presses against the top surface of the button cap skirt 412 to achieve a seal, and optionally, after the decorative cover 300 presses against the top surface of the button cap skirt 412, the top surface of the skirt remains slightly higher than the top surface of the cover plate 200, thereby ensuring the airtightness of the decorative cover 300.

[0051] In some embodiments, as shown in Figure 8a, the button cap mounting portion 210 includes a groove 211 extending along the circumferential direction of the edge, and the button cap skirt 412 includes a protruding edge 413 extending along the circumferential direction of the edge. When the button cap 400 is attached to the bracket 420, the protruding edge 413 is inserted into the groove 211 to achieve a complete seal between the soft rubber button cap 400 and the cover plate 200. Optionally, the protruding edge 413 is inserted into the groove 211 with an overlap to achieve a complete seal between the soft rubber button cap 400 and the cover plate 200. In some embodiments, as shown in Figure 4, at least one of the inner and outer surfaces of the protruding edge 413 includes at least one projection 414, the structure of which is not limited and may be elongated, bump-shaped, etc. The projection 414 can further seal the soft rubber button cap 400 and the cover plate 200, enhancing waterproofing and light leakage prevention, while simultaneously increasing the strength of the button cap, increasing the frictional force of the contact surface, and preventing misalignment during installation.

[0052] In some embodiments, as shown in Figures 9 and 10, the button cap mounting portion 210 includes two symmetrically arranged buttonholes 212, and the bracket 420 is integrally formed with the buttonholes. In some embodiments, for example, the bracket 420 includes a button ring 422 connected via at least one elastic arm 421, the button ring 422 being positioned substantially centrally in the buttonhole, and connecting the button ring 422 to the inner wall of the buttonhole via one or two elastic arms 421. The elastic arms 421 are provided around the button ring 422 to increase the overall length of the elastic arms, improve elasticity, and increase support strength through bypassing, the button ring 422 is configured to be pressed by the button cap 400 to realize button function, and the elastic arms 421 are configured to return the button ring 422 to its original position, and the button ring and elastic arms are formed from a rigid but elastic material, such as hard rubber, hard plastic, or metal.

[0053] In some embodiments, as shown in Figures 5a and 10, the button cap 400 further includes a first projection 417 and a second projection 418 provided on the lower surface of the button cap pressing portion 410, the lower surface of the button cap 400 includes a recess 416 that accommodates the first projection 417 and the second projection 418, and both the first projection 417 and the second projection 418 include a columnar structure 4181 extending downward along the lower surface of the button cap pressing portion and a conical structure 4182 extending downward along the columnar structure, the columnar structure 4181 may be cylindrical or prismatic. The conical structure 4182 may be a frustum of a cone or a frustum of a pyramidal structure, the top surface of which is a flat pressing surface. A flat structure 4183 is formed at the connection point between the columnar structure 4181 and the conical structure 4182, and the flat structure 4183 surrounds the connection point between the columnar structure 4181 and the conical structure 4182. When the button cap is assembled to the bracket 420, the first projection 417 and the second projection 418 each penetrate the button ring 422, and the edge of the button ring 422 abuts against the flat structure. The conical structure 4182 of the first projection 417 and the second projection 418 extends into the button ring 422, protrudes from the button ring 422, and then contacts the component to be pressed on the circuit board, thereby facilitating pressing.

[0054] In some embodiments, the mobile platform 100 further includes a circuit board 700 located below the button assembly 400, on which a switch element, such as a microswitch, is provided, and the conical structure 4182 of the first projection 417 and the second projection 418 abuts against the switch element, causing the switch element to be triggered by a downward pressing force.

[0055] In some embodiments, the bracket 420 includes a button plate 423 connected via at least one elastic arm 421. As shown in Figures 8a to 8b, the button plate 423 is configured to be pressed by a button cap to provide a button function, and the elastic arm 421 is configured to return the button ring to its original position. Typically, the button plate 423 includes a flat pressing portion 4231 and a conical projection 4232, and the button plate 423 is integrally molded to the inner edge of the bracket 420 by one or more elongated elastic arms 421, and one or more elongated elastic arms 421 are provided around the button plate 423 to provide sufficient pressing and returning elasticity to the button plate 423. In some embodiments, as shown in Figure 5b, the button cap 400 further includes a first projection 417 and a second projection 418 provided on the lower surface of the button cap pressing portion 410, and when the button cap is assembled to the bracket 420, the first projection 417 and the second projection 418 are in close contact with the upper surface of the button plate 423 and perform the pressing function.

[0056] In some embodiments, the moving platform 100 further includes a circuit board 700 located below the button assembly 400, on which a switch element, such as a microswitch, is provided. The first projection 417 and the second projection 418 are in close contact with the upper surface of the button plate 423 and perform pressing, after which a conical projection 4232 contacts the switch element, and the switch element is triggered by a downward pressing force.

[0057] This invention provides an automatic cleaning device in which a button assembly is assembled to a cover plate of the automatic cleaning device, the button assembly includes a button cap and a bracket, the button cap includes a button cap pressing portion and a button cap skirt, the bracket and the cover plate are integrally molded, the button cap is directly assembled to the integrally molded bracket, and the decorative plate presses and secures the button cap skirt, thereby simplifying the mounting structure of the button cap assembly overall and making it convenient for pre-assembly and subsequent maintenance.

[0058] Finally, note that each example in this specification is described incrementally, each example focuses on its differences from the others, and identical or similar parts between examples may be referenced to one another.

[0059] The above embodiments are used to illustrate the technical solutions of the present disclosure and are not limiting thereto. While the present disclosure has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in each of the above embodiments can still be modified or some of their technical features can be substituted equally, and that such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of each embodiment of the present disclosure.

Claims

1. The operating surface is configured to move automatically, and the moving platform includes a cover plate, Includes a button assembly assembled on the cover plate, The button assembly includes a button cap and a bracket, the button cap being assembled to the bracket, The button cap includes a button cap pressing portion and a button cap skirt integrally formed with the button cap pressing portion, the button cap skirt being provided around the button cap pressing portion. The bracket and the cover plate are integrally molded. The cover plate further includes a decorative cover provided on its top surface, the decorative cover having a mounting hole that matches the shape of the button cap pressing portion, and when the button cap is assembled to the bracket, the edge of the mounting hole is pressed against the button cap skirt. The cover plate includes a button cap mounting portion that substantially matches the contour of the button cap skirt, and when the button cap is attached to the bracket, the button cap skirt and the button cap mounting portion are in close contact, and the upper surface of the button cap skirt and the upper surface of the cover plate are substantially flush, or slightly higher than the upper surface of the cover plate. An automatic cleaning device characterized by the following features.

2. The button cap mounting portion includes a groove extending along the circumferential direction of the edge, and the button cap skirt includes a protruding edge extending along the circumferential direction of the edge, and when the button cap is attached to the bracket, the protruding edge is inserted into the groove. The automatic cleaning device according to feature 1.

3. The inner and / or outer sides of the aforementioned protruding edge include at least one projection, The automatic cleaning device according to feature 2.

4. The button cap mounting portion includes two symmetrically arranged button holes, and the bracket is integrally formed with the button holes. The automatic cleaning device according to feature 1.

5. The button cap further includes a first projection and a second projection provided on the lower surface of the button cap pressing portion, and when the button cap is assembled to the bracket, the first projection and the second projection perform pressing via the bracket. The automatic cleaning device according to feature 4.

6. The first projection and the second projection each include a columnar structure extending downward along the lower surface of the button cap pressing portion and a conical structure extending downward along the columnar structure, and a flat structure is formed at the connection point between the columnar structure and the conical structure. The automatic cleaning device according to feature 5.

7. The bracket includes at least one elastic arm and a button ring connected via the at least one elastic arm, wherein the button ring is configured such that the conical structure penetrates the button ring and then contacts the flat structure, and the elastic arm is configured to return the button ring to its original position. The automatic cleaning device according to feature 6.

8. The bracket includes at least one elastic arm and a button plate connected via the at least one elastic arm, wherein the button plate is configured to transmit pressing force via the first projection and the second projection when the button cap is pressed, and the elastic arm is configured to return the button plate to its original position. The automatic cleaning device according to feature 5.

9. The lower surface of the button plate includes a conical projection, and pressing is performed via the conical projection. The automatic cleaning device according to feature 8.

10. The present invention further includes a switch element, the switch element being configured to be triggered by the pressing of the conical structure. The automatic cleaning device according to feature 6.

11. Further comprising a switch element, wherein the switch element is configured to be triggered by pressing the conical projection, The automatic cleaning device according to feature 9.

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