surface cleaning robots

Abstract

An embodiment of the present invention provides a surface cleaning robot, comprising: a main unit, a surface sensing device and a cleaning device respectively disposed on the main unit; the main unit having a first operating state and a second operating state, the surface sensing device having a detection area facing the working surface; when the main unit is in the first operating state, the cleaning device obscures the detection area; when the main unit is in the second operating state, the cleaning device exposes the detection area. The technical solution provided by the embodiment of the present invention ensures that the cleaning device remains intact and does not miss any areas when wiping framed windows. When wiping frameless windows, the surface sensing device can function normally, preventing the window-cleaning robot from falling and providing excellent safety.

Description

Technical Field

[0001] The present invention relates to the field of household cleaning, and in particular to a surface cleaning robot. Background Art

[0002] Surface cleaning robots, such as window cleaning robots, are a type of smart home appliance. They adhere firmly to glass surfaces through the negative pressure generated by a built-in vacuum pump or blower. They automatically detect the window's corners and distances and plan a cleaning path. Window cleaning robots typically use the force of their adhesion to drive a cloth at the bottom of their bodies to remove dirt.

[0003] The surface sensing device of the existing window cleaning robot is integrated with the main body and cannot be separated. In order to sense the glass, it is usually necessary to give up a part of the area at the cleaning device to accommodate the surface sensing device to avoid affecting the sensing effect of the sensing device.

[0004] When the above-mentioned window cleaning robot wipes framed windows, the area where the sensing device is housed has no cleaning device, resulting in missed cleaning of the window corners. If the surface sensing device is cancelled, when wiping frameless windows, the surface sensing device will not be able to detect the edges, and the entire window cleaning robot will not be able to work properly. Summary of the Invention

[0005] In view of the above problems, in one embodiment of the present invention, a surface cleaning robot is provided, comprising: a main body, a surface sensing device and a cleaning device respectively provided on the main body;

[0006] The host has a first working state and a second working state, and the surface sensing device has a detection area facing the working surface;

[0007] When the host is in the first working state, the cleaning device blocks the detection area;

[0008] When the host is in the second working state, the cleaning device exposes the detection area.

[0009] Preferably, the cleaning device includes a first cleaning device and a second cleaning device, and the host can be selectively detachably connected to the first cleaning device or the second cleaning device;

[0010] Wherein, the first cleaning device blocks the surface sensing device when connected to the host, and the second cleaning device exposes the surface sensing device when connected to the host;

[0011] The window cleaning robot can switch between a first working state and a second working state;

[0012] Wherein, in a first working state, the first cleaning device is in contact with the window;

[0013] In a second working state, the second cleaning device and the surface sensing device are in contact with the window.

[0014] Furthermore, the first cleaning device includes a main cleaning part and a secondary cleaning part, and the secondary cleaning part is a part of the first cleaning device that blocks the surface sensing device.

[0015] Optional,

[0016] The cleaning device includes a main cleaning part and a secondary cleaning part, wherein the secondary cleaning part is the part of the cleaning device that blocks the surface sensing device;

[0017] The surface sensing device is non-fixedly connected to the main unit, and the auxiliary cleaning unit is non-fixedly connected to the main unit, so that the window cleaning robot can switch between a first working state and a second working state;

[0018] Wherein, in the first working state, the main cleaning part and the auxiliary cleaning part are both in contact with the window glass;

[0019] In the second working state, the surface sensing device occupies the area where the auxiliary cleaning part is located in the first working state, and both the main cleaning part and the surface sensing device are in contact with the window glass.

[0020] Furthermore, the surface sensing device is detachably connected to the host.

[0021] Optionally, the surface sensing device is movably connected to the host, and the surface sensing device is capable of moving between a first position and a second position;

[0022] The first position is a position where the surface sensing device avoids the area where the auxiliary cleaning unit is located, and the second position is a position where the surface sensing device occupies the area where the auxiliary cleaning unit is located.

[0023] Optionally, the surface sensing device is connected to the host via a first telescopic device, and the first telescopic device can drive the surface sensing device to move between a first position and a second position. The first telescopic device can at least control the surface sensing device to stay in the second position.

[0024] Optionally, the surface sensing device is rotatably connected to the host, and the host is provided with a receiving slot for accommodating the surface sensing device. When the surface sensing device is rotated to be accommodated in the receiving slot, the surface sensing device is in the first position.

[0025] Optionally, the main cleaning unit is fixedly connected to the main unit, and the auxiliary cleaning unit is non-fixedly connected to the main unit.

[0026] Optionally, the auxiliary cleaning unit is detachably connected to the main unit.

[0027] Optionally, the auxiliary cleaning unit is movably connected to the main unit, and a first accommodating cavity for accommodating the auxiliary cleaning unit is provided in the main unit, and the auxiliary cleaning unit can move between a working position and a avoidance position;

[0028] The working position is the position of the auxiliary cleaning part when the auxiliary cleaning part is completely spliced ​​with the main cleaning part, and the avoidance position is the position of the auxiliary cleaning part when it is accommodated in the first accommodating cavity.

[0029] Optionally, the auxiliary cleaning part is connected to the main unit via a second telescopic device, the telescopic direction of the second telescopic device is parallel to the cleaning surface of the cleaning device, and the second telescopic device can drive the auxiliary cleaning part to move between the working position and the avoidance position.

[0030] Optionally, the auxiliary cleaning unit is rotatably connected to the main unit, and the auxiliary cleaning unit can rotate between the working position and the avoidance position.

[0031] Optionally, the auxiliary cleaning part is detachably connected to the main cleaning part.

[0032] Optionally, the auxiliary cleaning part is movably connected to the main cleaning part, and a second accommodating cavity for accommodating the auxiliary cleaning part is provided in the main cleaning part, and the auxiliary cleaning part can move between a working position and an avoidance position; wherein, the working position is the position of the auxiliary cleaning part when the auxiliary cleaning part and the main cleaning part are completely spliced ​​together, and the avoidance position is the position of the auxiliary cleaning part when it is accommodated in the second accommodating cavity.

[0033] In the technical solution provided by the embodiment of the present invention, the main unit has a first working state and a second working state, and switches between the first working state and the second working state by blocking or not blocking the detection area through the cleaning device. As a result, the surface cleaning robot can flexibly choose to switch between the first working state and the second working state according to the window cleaning environment. In the first working state, the surface cleaning robot can work in a framed environment, cleaning comprehensively without missing anything; in the second working state, the surface sensing device works, and the surface cleaning robot can work in a frameless environment. The surface sensing device can work normally to ensure the anti-fall function of the surface cleaning robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 An exploded view of a surface cleaning robot provided by an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of a surface cleaning robot provided by an embodiment of the present invention in a first working state;

[0037] Figure 3 A schematic diagram of a surface cleaning robot provided by an embodiment of the present invention in a second working state;

[0038] Figure 4 1 is a cross-sectional schematic diagram of an installation method of a surface sensing device and a host provided by an embodiment of the present invention in a first working state;

[0039] Figure 5 1 is a cross-sectional diagram of an installation method of a surface sensing device and a host provided by an embodiment of the present invention in a second working state;

[0040] Figure 6 1 is a cross-sectional schematic diagram of another installation method of the surface sensing device and the host provided by an embodiment of the present invention in a first working state;

[0041] Figure 7 1 is a cross-sectional schematic diagram of another installation method of the surface sensing device and the host provided by an embodiment of the present invention in a second working state;

[0042] Figure 8 This is a schematic diagram of a non-fixed connection between a main cleaning part and an auxiliary cleaning part of a cleaning device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0043] The following will describe the embodiments of the present invention in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0044] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in their functions.

[0045] Throughout the specification and claims, the word "including" is an open-ended term and should be interpreted as "including but not limited to." "Substantially" means that within an acceptable error range, a person skilled in the art can solve the technical problem and substantially achieve the technical effect.

[0046] Furthermore, the term "connected" as used herein encompasses both direct and indirect means of connection. Thus, if a first device is described as being connected to a second device, this means that the first device may be directly connected to the second device or indirectly connected to the second device through another device. The following description of preferred embodiments of the present invention is intended to illustrate the general principles of the invention and is not intended to limit the scope of the invention. The scope of protection of the present invention shall be determined by the appended claims.

[0047] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0048] Surface cleaning robots, such as window cleaning robots or solar panel cleaning robots, use suction devices to adhere to various surfaces, such as windows, walls, or solar panels. For example, a window cleaning robot securely adheres to glass using a negative pressure chamber at its base. The robot typically uses the force of its suction to drive a cloth at the bottom of its body to remove dirt from the glass. However, when operating over frameless windows, glass with gaps, or low steps, if the robot lacks the ability to recognize the edges of frameless windows, gaps, or low steps, it will simply pass over these areas. The suction chamber, acting as a suction device, can instantly leak air as it passes over these areas, causing the window cleaning robot to fall. Therefore, a surface sensing device is designed to effectively identify glass and glass defects, preventing the window cleaning robot from falling when used on frameless windows or glass surfaces with gaps or low steps.

[0049] In the prior art, window cleaning robots require a surface sensing device. For example, when used in frameless window environments, the surface sensing device needs to function and come into contact with the glass. Typically, a portion of the cleaning device must be left free to avoid the surface sensing device, thereby preventing it from affecting the sensing effect. Consequently, when such a surface cleaning robot is used in framed window environments, the free portion of the cleaning device cannot clean the glass, resulting in some areas of the glass being missed, particularly at corners. If the surface sensing device is removed, the surface cleaning robot will be unable to detect edges when used in frameless window environments, thus failing to function properly and failing to ensure safe operation. Therefore, it is crucial to ensure that the surface cleaning robot can provide comprehensive cleaning in framed window environments, while also being able to properly identify glass with defects such as gaps or low-step edges in frameless windows without affecting the normal operation of the surface sensing device.

[0050] Example 1

[0051] Figure 1 An exploded view of a surface cleaning robot provided by an embodiment of the present invention; Figure 2 A schematic diagram of a surface cleaning robot provided by an embodiment of the present invention in a first working state; Figure 3 Schematic diagram of a surface cleaning robot in a second working state provided by an embodiment of the present invention. Figure 1 As shown, the surface cleaning robot provided by the embodiment of the present invention includes: a main unit 1, a surface sensing device 2 and a cleaning device 3 respectively arranged on the main unit 1. The main unit 1 has a first working state and a second working state, and the surface sensing device 2 has a detection area facing the working surface;

[0052] When the host is in the first working state, the cleaning device 3 blocks the detection area;

[0053] When the main body is in the second working state, the cleaning device 3 exposes the detection area.

[0054] This embodiment provides a surface cleaning robot, the main body of which has a first working state and a second working state. The cleaning device blocks or does not block the detection area, so that the robot switches between the first working state and the second working state. As a result, the surface cleaning robot can flexibly choose to switch between the first working state and the second working state according to the window cleaning environment. In the first working state, the surface cleaning robot can work in a framed environment, cleaning comprehensively without missing anything; in the second working state, the surface sensing device works, and the surface cleaning robot can work in a frameless environment. The surface sensing device can work normally to ensure the anti-fall function of the surface cleaning robot.

[0055] Further, such as Figure 2 The cleaning device 3 may include a main cleaning portion 31 and a secondary cleaning portion 32. The secondary cleaning portion 32 is the portion of the cleaning device 3 that blocks the surface sensing device 2. In this embodiment, the first surface of the cleaning device 3 may be used to connect to the host 1, and the second surface of the cleaning device 3 may be used to contact the glass to clean the glass, wherein the first surface and the second surface are arranged opposite to each other.

[0056] Figures 1 to 3 The cleaning device 3 shown can be in a closed shape, for example, a U-shape, so as to avoid the driving wheel 11, the fan device 12, etc. in the middle area of ​​the U-shape, wherein the driving wheel 11 is used to drive the main unit 1 to move along a predetermined trajectory, and the fan device 12 can generate a super strong suction force to the negative pressure chamber, so that the main unit 1 is firmly sucked on the glass and is not easy to fall.

[0057] In this embodiment, the surface sensing device 2 is non-fixedly connected to the main unit 1, and the auxiliary cleaning unit 32 is non-fixedly connected to the main unit 1, so that the surface cleaning robot can switch between a first working state and a second working state; wherein, in the first working state, the main cleaning unit 31 and the auxiliary cleaning unit 32 are in contact with the window; in the second working state, the surface sensing device 2 occupies the area where the auxiliary cleaning unit 32 is in the first working state, and the main cleaning unit 31 and the surface sensing device 2 are in contact with the window.

[0058] In this embodiment, the surface sensing device 2 can be understood as a separate component used to contact the window glass, such as a detection ball head. The surface sensing device 2 contacts the window glass. The surface sensing device 2 can be connected to the host 1 through the mounting base body 2a. The connection method between the surface sensing device 2 and the host 1 can include an indirect connection method through the mounting base body 2a and the main body 1.

[0059] “Non-fixed connection” may be understood as a detachable connection, or the two components may be relatively movable in the connected state.

[0060] In this embodiment, the first working state can be the working state of the surface cleaning robot when it is applied to a framed window environment. In the framed window environment, the surface sensing device 2 does not need to work. Since the surface sensing device 2 is not fixedly connected to the host 1, when it is applied to the framed window environment, the surface sensing device 2 can be removed from the host 1, or the surface sensing device 2 can be moved to a position where it does not block the auxiliary cleaning part 32. At this time, the surface cleaning robot can work in the first working state. In this state, Figure 2As shown, the main cleaning part 31 and the auxiliary cleaning part 32 can both contact the window to fully wipe the window. Since the main cleaning part 31 and the auxiliary cleaning part 32 of the entire cleaning device 3 are both functional, there will be no problem of missing wiping.

[0061] The second operating state can be the operating state of the surface cleaning robot when it is used on frameless windows, or when it is used on glass with gaps or low steps. In such environments, the surface sensing device 2 needs to operate. Since the surface sensing device 2 is not fixedly connected to the main unit 1, it can be switched from the first operating state to the second operating state. Specifically, the surface sensing device 2 can be reinstalled or returned from its position in the first operating state to an operating position capable of sensing the glass. Since the auxiliary cleaning unit 32 is not fixedly connected to the main unit 1, the auxiliary cleaning unit 32 of the cleaning device 3 can be removed from the main unit 1 or moved to a position that does not block the surface sensing device 2. In other words, the surface sensing device 2 can occupy the area where the auxiliary cleaning unit 32 is located in the first operating state. In this area, the surface sensing device 2 can make good contact with the glass without affecting the normal operation of the surface sensing device 2. This is suitable for frameless windows where the surface sensing device 2 is required to detect edges, or for environments with gaps or low steps where the surface sensing device 2 is required to detect glass defects.

[0062] It should be noted that the number of surface sensing devices 2 is not limited, and the number of the devices can be selected according to the size of the surface cleaning robot and actual needs, and is not limited to only one. Preferably, Figure 3 As shown, four surface sensing devices 2 can be provided. The four surface sensing devices 2 can be respectively arranged at the four corners of the main body 1. Of course, multiple surface sensing devices 2 can also be evenly arranged around the periphery of the main body 1. Accordingly, the number and position of the surface sensing devices 2 match the number of auxiliary cleaning units 32. In this embodiment, there are four surface sensing devices 2, and correspondingly, four auxiliary cleaning units 32 can be provided.

[0063] In this embodiment, the surface sensing device 2 can be a ball probe. If the ball probe is in constant contact with the glass, it indicates that the surface cleaning robot is currently in a safe area. If the ball probe loses contact with the glass, it indicates that the surface cleaning robot may have moved outside the glass, or may have passed over a defect in the glass, prompting the user that the glass is defective. The suction cup of the surface cleaning robot may leak air when passing over the defect, causing the surface cleaning robot to fall. It is understood that to ensure that the surface cleaning robot can take measures to avoid the defect in time, the surface sensing device 2 is preferably located at the edge of the main body 1. Thus, as long as the edge of the main body 1 detects an abnormality in the glass environment, the surface cleaning robot will have a longer time to react and effectively improve safety performance.

[0064] In the technical solution provided by the embodiment of the present invention, the surface sensing device 2 is non-fixedly connected to the main unit 1, and the part of the cleaning device 3 that blocks the surface sensing device 2 is non-fixedly connected to the main unit 1, thereby enabling the surface cleaning robot to flexibly switch between the first working state and the second working state according to the window cleaning environment. In the first working state, the surface sensing device 2 can be removed or moved to a position that does not block the auxiliary cleaning part 32, so that the main cleaning part 31 and the auxiliary cleaning part 32 are in contact with the window, and the surface cleaning robot can work in a framed environment, cleaning comprehensively without missing anything; in the second working state, the auxiliary cleaning part 32 can be removed or moved to a position that does not block the surface sensing device 2, and the surface sensing device 2 occupies the area where the auxiliary cleaning part is in the first working state, the main cleaning part 31 and the surface sensing device 2 are in contact with the window, and the surface sensing device 2 can work normally. The surface cleaning robot can work in a frameless window environment and an environment where the glass has cracks or low steps through the surface sensing device 2, thereby ensuring the anti-fall function of the surface cleaning robot.

[0065] In the above embodiment, the surface sensing device 2 can be detachably connected to the main unit 1. Specifically, for example, it can be screwed to the main unit 1 via screws or bolts, or snap-fitted to the main unit 1 via a buckle. Preferably, to facilitate assembly and disassembly and improve operational efficiency, the surface sensing device 2 can be connected to the main unit 1 via Velcro, hook-and-loop fasteners, or magnetic attraction. Similarly, the auxiliary cleaning unit 32 can also be detachably connected to the main cleaning unit 31. The method of detachably connecting the auxiliary cleaning unit 32 to the main cleaning unit 31 can also be the same as that for the surface sensing device 2 to the main unit 1, and will not be described in detail here.

[0066] As an optional embodiment, the surface sensing device 2 can be movably connected to the main unit 1. "Moveable connection" here means that, once connected, the surface sensing device 2 and the main unit 1 can move relative to each other under the influence of a certain external force. The surface sensing device 2 can move between a first position and a second position; the first position is when the surface sensing device 2 avoids the area where the auxiliary cleaning unit 32 is located, and the second position is when the surface sensing device 2 occupies the area where the auxiliary cleaning unit 32 is located. The movably connected surface sensing device 2 and the main unit 1 allow the surface cleaning robot to operate in the first operating state without removing the surface sensing device 2, thus avoiding the tedious operation of removing the surface sensing device 2 and preventing loss of the surface sensing device 2 after removal.

[0067] Two specific implementations of the active connection between the surface sensing device 2 and the host 1 are given below.

[0068] The first one, Figure 4 1 is a cross-sectional schematic diagram of an installation method of a surface sensing device and a host provided by an embodiment of the present invention in a first working state; Figure 5 FIG. 1 is a cross-sectional diagram of an installation method of a surface sensing device and a host provided by an embodiment of the present invention in a second working state; FIG. Figure 4-Figure 5 As shown, the surface sensing device 2 can be connected to the main unit 1 through a first telescopic device 4. The first telescopic device 4 can drive the surface sensing device 2 to move between the above-mentioned first position and the above-mentioned second position. Specifically, the first telescopic device 4 can be a matching structure of a guide rail and a guide groove, a matching structure of a sliding sleeve and a sliding column, or, it can be an instrument such as a cylinder, the piston rod of the cylinder is fixedly connected to the surface sensing device 2, and the cylinder body of the cylinder is fixedly connected to the main unit 1.

[0069] The first telescopic device 4 in this embodiment can be understood as at least a part of the mounting seat body 2a.

[0070] It should be noted that when the surface sensing device 2 is working, its detection direction is perpendicular to the glass surface, and the extension direction of the first telescopic device 4 is also perpendicular to the glass surface. Therefore, in order to prevent the surface sensing device 2 from being in the second position (such as Figure 5 The position shown in the figure) is squeezed by the glass and inertially retracts over a large range, resulting in the inability to detect the glass. The first telescopic device 4 can at least drive the surface sensing device 2 to stay in the second position, thereby ensuring the working stability of the first telescopic device 4.

[0071] like Figure 4As shown, under the retraction of the first telescopic device 4, the surface sensing device 2 retreats to avoid the auxiliary cleaning part 32 of the cleaning device 3. The entire cleaning device 3 (including the main cleaning part 31 and the auxiliary cleaning part 32) can contact the glass and wipe the glass. It can be used to wipe framed windows without the problem of missing glass. Figure 5 As shown, under the extension action of the first telescopic device 4, the surface sensing device 2 extends out of the main body 1, and the auxiliary cleaning part 32 can be disassembled or moved to a position that does not block the surface sensing device 2. The surface sensing device 2 occupies the area where the auxiliary cleaning part 32 of the cleaning device 3 is located. The main cleaning part 31 of the cleaning device 3 and the surface sensing device 2 are in contact with the glass and can work in a frameless window environment. The main cleaning part 31 wipes the glass. Since it is in a frameless environment, the main cleaning part 31 will not miss the window due to the limitation of the frame edge when wiping the window, and the surface sensing device 2 can detect the frameless environment. When walking to the edge of the glass, the surface sensing device 2 sends a signal to make the surface cleaning robot change its walking path to avoid falling.

[0072] The second type, Figure 6 1 is a cross-sectional schematic diagram of another installation method of the surface sensing device and the host provided by an embodiment of the present invention in a first working state; Figure 7 FIG is a cross-sectional diagram of another installation method of the surface sensing device and the host provided by an embodiment of the present invention in the second working state; Figure 6 and Figure 7 As shown, the surface sensing device 2 can be rotatably connected to the main unit 1. The main unit 1 can be provided with a receiving slot 5 for accommodating the surface sensing device 2. When the surface sensing device 2 is rotated and accommodated in the receiving slot 5, the surface sensing device 2 is in the first position. In this embodiment, the surface sensing device 2 can be hinged to the main unit 1. Specifically, the surface sensing device 2 can be rotatably connected to the main unit 1 via a stop-and-go support rod. This allows the surface sensing device 2 to be rotated to any angle and stopped at any angle without shaking after stopping. Of course, those skilled in the art can also select a connector for rotatably connecting the surface sensing device 2 to the main unit 1 according to actual needs.

[0073] like Figure 6 As shown, when the surface cleaning robot is required to work in a framed window environment, the user can rotate the surface sensing device 2 to the position shown in FIG. Figure 6 In the state shown, the surface sensing device 2 is accommodated in the receiving groove 5 to avoid the auxiliary cleaning part 32 of the cleaning device 3, so that the main cleaning part 31 and the auxiliary cleaning part 32 can contact the glass and wipe the glass completely. At this time, the working state of the surface cleaning robot is the first working state. Figure 7As shown, when the surface cleaning robot is required to work in a frameless window environment or to detect window defects, the user can rotate the surface sensing device 2 to the position shown in FIG. Figure 7 In the state shown, at the same time, the auxiliary cleaning part 32 can be disassembled or moved to a position where it does not block the surface sensing device 2, so that the main cleaning part 31 and the surface sensing device 2 work, the main cleaning part 31 performs glass wiping work, and the surface sensing device 2 performs glass detection work to prevent the surface cleaning robot from falling.

[0074] On the other hand, the auxiliary cleaning unit 32 and the main cleaning unit 31 can also be movably connected, and a second accommodating cavity (not shown in the figure) for accommodating the auxiliary cleaning unit 32 can be provided in the main cleaning unit 31, and the auxiliary cleaning unit 32 can move between a working position and a avoidance position; wherein, the working position is the position of the auxiliary cleaning unit 32 when the auxiliary cleaning unit 32 and the main cleaning unit 31 are completely spliced ​​together, and the avoidance position is the position of the auxiliary cleaning unit 32 when it is accommodated in the second accommodating cavity. The auxiliary cleaning unit 32 is movably connected to the main cleaning unit 31. When it is necessary to switch the surface cleaning robot between the first working state and the second working state, there is no need to disassemble the auxiliary cleaning unit 32. It is only necessary to change the position of the auxiliary cleaning unit 32, thereby improving operational efficiency and convenience.

[0075] Specifically, Figure 8 The schematic diagram of the non-fixed connection between the main cleaning part and the auxiliary cleaning part of the cleaning device provided by the embodiment of the present invention. The auxiliary cleaning part 32 and the main cleaning part 31 can be connected by a second telescopic device (not shown in the figure). The telescopic direction of the second telescopic device ( Figure 8 The second telescopic device is parallel to the cleaning surface of the cleaning device 3 (in the direction indicated by the middle arrow), and can drive the auxiliary cleaning unit 32 to move between the working position and the avoidance position. The solid line sector area is the area where the auxiliary cleaning unit 32 is in the working position, and the dotted line sector area is the area where the auxiliary cleaning unit 32 is in the avoidance position.

[0076] Similar to the connection between the surface sensing device 2 and the host 1, the second telescopic device can be a matching structure of a guide rail and a guide groove, or a matching structure of a sliding sleeve and a sliding column. The structure is simple and suitable for small-sized components such as the cleaning device 3.

[0077] As another feasible way, the auxiliary cleaning part 32 and the main cleaning part 31 can also be rotatably connected, the opening of the second accommodating cavity can be located on the side wall of the main cleaning part 31, the rotation direction of the auxiliary cleaning part 32 is parallel to the cleaning surface of the cleaning device 3, and the auxiliary cleaning part 32 can rotate between the working position and the avoidance position. In this embodiment, preferably, the auxiliary cleaning part 32 and the main cleaning part 31 can be hinged, and the auxiliary cleaning part 32 can rotate between the working position and the avoidance position and can stay in the working position and the avoidance position, so that the surface cleaning robot operates in the first working state and the second working state.

[0078] The auxiliary cleaning unit 32 can be detachably connected to the main unit 1, or the auxiliary cleaning unit 32 can be movably connected to the main unit 1. The auxiliary cleaning unit 32 can be movably connected to the main unit 1. A first accommodating chamber for accommodating the auxiliary cleaning unit 32 is provided in the main unit 1, and the auxiliary cleaning unit can move between a working position and a avoidance position; wherein the working position is the position of the auxiliary cleaning unit when the auxiliary cleaning unit 32 is completely spliced ​​with the main cleaning unit 31, and the avoidance position is the position when the auxiliary cleaning unit is accommodated in the first accommodating chamber. In this embodiment, preferably, the auxiliary cleaning unit 32 can be rotatably connected to the main unit 1, and the auxiliary cleaning unit 32 can be rotated to be hidden in the first accommodating chamber. The specific opening method of the first accommodating chamber and the rotation method of the auxiliary cleaning unit 32 can be designed by those skilled in the art according to the actual structure of the surface cleaning robot, and this embodiment is not limited thereto.

[0079] Example 2

[0080] This embodiment provides another surface cleaning robot, which is similar to the first embodiment. The surface sensing device 2 can be non-fixedly connected to the host 1 in the manner of the first embodiment. The difference is that the cleaning device 3 is a replaceable device.

[0081] Specifically, the surface cleaning robot of this embodiment includes a main body 1, a surface sensing device 2 and a cleaning device 3 respectively arranged on the main body 1; the cleaning device 3 includes a first cleaning device and a second cleaning device, and the main body can be selectively detachably connected to the first cleaning device or the second cleaning device; wherein, the first cleaning device blocks the surface sensing device 2 when connected to the main body, and the second cleaning device exposes the surface sensing device 2 when connected to the main body; the surface sensing device 2 is non-fixedly connected to the main body 1 so that the surface cleaning robot can switch between a first working state and a second working state; wherein, in the first working state, the first cleaning device is in contact with the window; and in the second working state, the second cleaning device and the surface sensing device 2 are in contact with the window.

[0082] That is, the first cleaning device and the second cleaning device in this embodiment are structurally different. The first cleaning device, when installed on the main unit 1, can obstruct the surface sensing device 2, while the second cleaning device, when installed on the main unit 1, can expose the surface sensing device 2. Therefore, when the surface cleaning robot is required to operate in an environment with framed windows, the surface sensing device 2 can be removed or moved to a position that does not occupy the cleaning device 3. The first cleaning device can then be installed on the main unit 1. This allows the first cleaning device to clean the framed windows without missing any areas. When the surface cleaning robot is required to operate in an environment with frameless windows or defective windows, the surface sensing device 2 is required. Therefore, the surface sensing device 2 can be installed in the working position, and the second cleaning device can be installed on the main unit 1. This allows the second cleaning device to wipe the glass, and the surface sensing device 2 can be used to detect the glass, preventing the surface cleaning robot from falling.

[0083] Similarly, in this embodiment, the first cleaning device may include a main cleaning portion and a secondary cleaning portion, and the secondary cleaning portion is a portion of the first cleaning device that blocks the surface sensing device.

[0084] Similar to the first embodiment, the surface sensing device 2 can be detachably connected to the main unit 1. Alternatively, the surface sensing device 2 can be movably connected to the main unit 1, and the surface sensing device 2 can move between a first position and a second position; wherein the first position is a position in which the surface sensing device 2 avoids the area where the auxiliary cleaning unit is located, and the second position is a position in which the surface sensing device 2 occupies the area where the auxiliary cleaning unit is located.

[0085] The surface sensing device 2 and the host 1 can be connected via a first telescopic device. The first telescopic device can drive the surface sensing device 2 to move between a first position and a second position. The first telescopic device can at least control the surface sensing device 2 to stay at the second position.

[0086] Optionally, the surface sensing device 2 is rotatably connected to the host, and a receiving slot for accommodating the surface sensing device 2 is provided on the host 1. When the surface sensing device 2 is rotated to be accommodated in the receiving slot, the surface sensing device is in the first position.

[0087] The specific implementation, structure, and effect of the connection between the surface sensing device 2 and the host 1 may be the same as those in the first embodiment, and will not be described in detail here. For details, please refer to the description of the first embodiment.

[0088] In the technical solution provided by the embodiment of the present invention, the surface sensing device 2 is non-fixedly connected to the host 1, and the cleaning device is detachably connected to the host, the cleaning device includes a first cleaning device and a second cleaning device, and the host 1 can selectively select the first cleaning device or the second cleaning device to be connected, thereby enabling the surface cleaning robot to flexibly switch between the first working state and the second working state according to the window cleaning environment. In the first working state, the surface sensing device can be removed or moved to a state that does not block the cleaning device, and the first cleaning device is used to directly contact the glass. The surface cleaning robot can work in a framed environment without the need for the surface sensing device. Since the first cleaning device can cover the surface sensing device 2, the cleaning is comprehensive and there is no omission; in the second working state, the second cleaning device can be replaced and connected to the host, and the surface sensing device is exposed from the second cleaning device. Both the second cleaning device and the surface sensing device 2 can contact the glass, and the surface cleaning robot can work in a frameless environment. On the premise of wiping the glass, the surface sensing device can work normally and the anti-fall function of the surface cleaning robot can also be guaranteed.

[0089] It should be noted that the surface sensing device 2 and the auxiliary cleaning unit 32 can be driven to move, for example, to move or rotate, manually or electrically.

[0090] The working process of the surface cleaning robot provided by the embodiment of the present invention is described below in conjunction with specific application scenarios:

[0091] Application scenarios for framed window environments:

[0092] When the user needs to clean a framed window, the surface sensing device 2 of the surface cleaning robot can be removed from the main body 1, or the surface sensing device 2 can be moved to a position away from the auxiliary cleaning unit 32. The auxiliary cleaning unit 32 of the cleaning device 3 is assembled with the main cleaning unit 31 to form a complete cleaning device 3. Specifically, the auxiliary cleaning unit 32 is reinstalled on the main cleaning unit 31, or can be moved or rotated to a complete position for assembly with the main cleaning unit 31, or directly replaced with a cleaning device including the auxiliary cleaning unit 32. The main cleaning unit 31 and the auxiliary cleaning unit 32 are used to fully wipe the glass of the framed window.

[0093] Frameless window environment application scenarios:

[0094] When the user needs to wipe the frameless window, the surface sensing device 2 of the surface cleaning robot can be installed on the main body 1, or the surface sensing device 2 can be moved to the working position (at the working position, the surface sensing device 2 is in contact with the glass), the auxiliary cleaning part 32 on the cleaning device 3 can be removed, or moved to a position that does not block the surface sensing device 2, or directly replaced with a cleaning device that does not include the auxiliary cleaning part 32. Subsequently, the frameless glass is wiped by the surface sensing device 2 and the main cleaning part 31. The surface sensing device 2 can work normally and can effectively prevent the surface cleaning robot from falling.

[0095] Of course, the structure described above is merely an example and does not constitute a limitation to the present invention. In actual applications, the shape and structure of the present invention can be changed to achieve the same function, which should fall within the scope of the concept of the present invention and fall within the scope of protection of the present invention.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not invalidate the corresponding technology.

Claims

1. A surface cleaning robot, characterized in that: include: a host, a surface sensing device and a cleaning device respectively provided on the host; The host has a first working state and a second working state, and the surface sensing device has a detection area facing the working surface; When the host is in the first working state, the cleaning device blocks the detection area; When the host is in the second working state, the cleaning device exposes the detection area.

2. The surface cleaning robot according to claim 1, characterized in that The cleaning device includes a first cleaning device and a second cleaning device, and the host can be selectively detachably connected to the first cleaning device or the second cleaning device; Wherein, the first cleaning device covers the surface sensing device when connected to the host, and the second cleaning device exposes the surface sensing device when connected to the host; The window cleaning robot can switch between a first working state and a second working state; Wherein, in a first working state, the first cleaning device is in contact with the window; In a second working state, the second cleaning device and the surface sensing device are in contact with the window.

3. The surface cleaning robot according to claim 2, characterized in that The first cleaning device includes a main cleaning part and a secondary cleaning part. The secondary cleaning part is a part of the first cleaning device that blocks the surface sensing device.

4. The surface cleaning robot according to claim 1, characterized in that The cleaning device includes a main cleaning part and a secondary cleaning part, wherein the secondary cleaning part is the part of the cleaning device that blocks the surface sensing device; The surface sensing device is non-fixedly connected to the main unit, and the auxiliary cleaning unit is non-fixedly connected to the main unit, so that the window cleaning robot can switch between a first working state and a second working state; Wherein, in the first working state, the main cleaning part and the auxiliary cleaning part are both in contact with the window glass; In the second working state, the surface sensing device occupies the area where the auxiliary cleaning part is located in the first working state, and both the main cleaning part and the surface sensing device are in contact with the window glass.

5. The surface cleaning robot according to any one of claims 3 to 4, characterized in that: The surface sensing device is detachably connected to the host.

6. The surface cleaning robot according to claim 5, characterized in that The surface sensing device is movably connected to the host, and the surface sensing device is capable of moving between a first position and a second position; The first position is a position where the surface sensing device avoids the area where the auxiliary cleaning unit is located, and the second position is a position where the surface sensing device occupies the area where the auxiliary cleaning unit is located.

7. The surface cleaning robot according to claim 6, characterized in that The surface sensing device is connected to the host via a first telescopic device. The first telescopic device can drive the surface sensing device to move between a first position and a second position. The first telescopic device can at least control the surface sensing device to stay in the second position.

8. The surface cleaning robot according to claim 6, characterized in that The surface sensing device is rotatably connected to the host. The host is provided with a receiving slot for receiving the surface sensing device. When the surface sensing device is rotated to be received in the receiving slot, the surface sensing device is in the first position.

9. The surface cleaning robot according to claim 4, characterized in that The main cleaning unit is fixedly connected to the main unit, and the auxiliary cleaning unit is non-fixedly connected to the main unit.

10. The surface cleaning robot according to claim 9, wherein: The auxiliary cleaning unit is detachably connected to the main body.

11. The surface cleaning robot according to claim 9, wherein: The auxiliary cleaning unit is movably connected to the main unit, and a first accommodating chamber for accommodating the auxiliary cleaning unit is provided in the main unit, and the auxiliary cleaning unit can move between a working position and a avoiding position; The working position is the position of the auxiliary cleaning part when the auxiliary cleaning part is completely spliced ​​with the main cleaning part, and the avoidance position is the position of the auxiliary cleaning part when it is accommodated in the first accommodating cavity.

12. The surface cleaning robot according to claim 11, wherein: The auxiliary cleaning part is connected to the main unit via a second telescopic device, the telescopic direction of the second telescopic device is parallel to the cleaning surface of the cleaning device, and the second telescopic device can drive the auxiliary cleaning part to move between the working position and the avoidance position.

13. The surface cleaning robot according to claim 11, wherein: The auxiliary cleaning unit is rotatably connected to the main unit, and the auxiliary cleaning unit is rotatable between the working position and the avoidance position.

14. The surface cleaning robot according to claim 4, wherein: The auxiliary cleaning part is detachably connected to the main cleaning part.

15. The surface cleaning robot according to claim 4, wherein: The auxiliary cleaning part is movably connected to the main cleaning part, and a second accommodating cavity for accommodating the auxiliary cleaning part is provided in the main cleaning part. The auxiliary cleaning part can move between a working position and an avoidance position; wherein, the working position is the position of the auxiliary cleaning part when the auxiliary cleaning part and the main cleaning part are completely spliced ​​together, and the avoidance position is the position of the auxiliary cleaning part when it is accommodated in the second accommodating cavity.

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