Surface cleaning apparatus

Abstract

The present disclosure provides a surface cleaning apparatus comprising: an upright body; the floor brush assembly is pivotally connected with the upright main body; the at least one cleaning execution piece is located on the upright main body or the floor brush assembly; the motor is used for providing power for the cleaning execution part; the sliding pieces are located on at least one side face of the floor brush assembly and protrude out of the side face.

Description

Technical Field

[0001] The present disclosure relates to a surface cleaning apparatus. Background Art

[0002] Conventional floor cleaners can supply cleaning liquid to a surface to be cleaned, thereby wetting the surface to be cleaned. The surface to be cleaned is then cleaned by friction between the agitator of the floor brush assembly and the surface to be cleaned. Meanwhile, the used cleaning liquid is retained in a recovery storage unit as contaminated cleaning liquid.

[0003] The floor cleaners in the prior art have good effects in cleaning indoor floors. However, when cleaning corners and the junction of floor cabinets and the floor, the user is often required to hold the cleaner close to them, which may inadvertently cause damage to the wall or furniture. Utility Model Content

[0004] In order to solve one of the above technical problems, the present disclosure provides a surface cleaning device.

[0005] According to one aspect of the present disclosure, there is provided a surface cleaning device, comprising: an upright body; a floor brush assembly, the floor brush assembly being pivotally connected to the upright body; at least one cleaning executive member, the cleaning executive member being located on the upright body or the floor brush assembly; at least one motor, the motor being used to provide power to the cleaning executive member; and at least one sliding member, located on at least one side surface of the floor brush assembly and protruding from the side surface.

[0006] According to one embodiment of the present disclosure, there are more than two sliding members, and they are distributed at intervals along the horizontal direction on the side.

[0007] According to one embodiment of the present disclosure, the two or more sliding members are laterally spaced apart and distributed along the same horizontal height on the side surface.

[0008] According to another aspect of the present disclosure, there is provided a surface cleaning device, which includes: an upright body; a floor brush assembly, which is pivotally connected to the upright body; at least one cleaning executive member, which is located on the upright body or the floor brush assembly; at least one motor, which is used to provide power to the cleaning executive member; a sliding member located on at least one side of the floor brush assembly and protruding from the side; and at least one distance sensor, which is connected to the at least one motor, is located on the same side of the floor brush assembly as the at least one sliding member, and is used to sense the distance between the side and an external object.

[0009] According to one embodiment of the present disclosure, the distance sensor includes an optical sensor.

[0010] According to another aspect of the present disclosure, there is provided a surface cleaning device, comprising: an upright body; a floor brush assembly, the floor brush assembly being pivotally connected to the upright body; at least one cleaning executive member, the cleaning executive member being located on the upright body or the floor brush assembly; at least one motor, the motor being used to provide power to the cleaning executive member; a sliding member located on at least one side surface of the floor brush assembly and protruding from the side surface; the floor brush assembly including a housing assembly, the housing assembly including a vertical side wall, and the at least one sliding member being located on the side wall.

[0011] According to one embodiment of the present disclosure, the at least one sliding member is located on the side wall on the right side of the forward direction of the floor brush assembly.

[0012] According to another aspect of the present disclosure, there is provided a surface cleaning device, comprising: an upright body; a floor brush assembly, the floor brush assembly being pivotally connected to the upright body; at least one cleaning executive member, the cleaning executive member being located on the upright body or the floor brush assembly; at least one motor, the motor being used to provide power to the cleaning executive member; a cleaning head assembly being located on at least one side surface of the floor brush assembly and protruding from the side surface; the floor brush assembly further comprising a cleaning head assembly, the cleaning head assembly being close to the side surface where the at least one sliding member is located.

[0013] According to one embodiment of the present disclosure, the cleaning head assembly is driven to be movable between a raised position and a lowered position, the cleaning head assembly being further away from the surface to be cleaned in the raised position than in the lowered position.

[0014] According to one embodiment of the present disclosure, in the lowered position, the working range of the cleaning head assembly is outside the horizontal plane projection of the side surface.

[0015] According to one embodiment of the present disclosure, the side includes an opening extending upward from a bottom of the side, and in the lowered position, at least a portion of the cleaning head assembly passes through the opening.

[0016] According to one embodiment of the present disclosure, the sliding member is located on the side surface above the opening.

[0017] According to one embodiment of the present disclosure, in the lowered position, the working range of the cleaning head assembly does not exceed the horizontal plane projection of the slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0019] Figure 1Schematic diagram of a surface cleaning system according to an embodiment of the present disclosure.

[0020] Figure 2 Schematic diagram of the structure of a surface cleaning device according to an embodiment of the present disclosure.

[0021] Figure 3 It is a structural schematic diagram of a floor brush assembly according to an embodiment of the present disclosure.

[0022] Figure 4 It is a structural schematic diagram of a floor brush assembly from another angle according to an embodiment of the present disclosure.

[0023] Figure 5 A top view of a floor brush assembly according to an embodiment of the present disclosure shows a state along a wall.

[0024] Figure 6 A top view of a floor brush assembly according to another embodiment of the present disclosure shows a state along a wall.

[0025] Figure 7 It is a structural schematic diagram of a floor brush assembly from another angle according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0026] Current household vacuum cleaners are typically equipped with a dirt suction unit with a roller brush for cleaning foreign matter lodged deep inside carpets and other surfaces. Specifically, the roller brush, mounted on the side of the vacuum cleaner, impacts and absorbs target particles in corners as it rotates, separating them from the carpet or floor for recovery. The side roller brush is particularly useful for attracting dirt lodged deep inside corners, such as the corner between the floor and a wall, by positioning the roller brush close to the floor.

[0027] Household vacuum cleaners typically have at least one side surface that is substantially perpendicular to the ground. Since household vacuum cleaners are typically driven automatically (e.g., a self-propelled cleaning robot) or manually (e.g., a handheld cleaner), during operation, particularly when cleaning corners along walls, the side surface can collide with the wall, deforming the brush roller. These impacts can accumulate over time, often leading to wear or damage to the side surface, the wall, or the brush roller.

[0028] The present invention provides a sliding part on the above-mentioned side so that the side or roller brush of the vacuum cleaner can prevent direct contact with the wall or furniture surface when cleaning along the edge, which not only improves the durability of the vacuum cleaner, but also improves the consistency of the edge cleaning efficiency.

[0029] like Figure 1As shown, the present disclosure provides a surface cleaning system, which includes a surface cleaning device and a base station 900 .

[0030] The surface cleaning apparatus is configured to clean a surface to be cleaned (e.g., a floor surface, etc.). Preferably, the surface cleaning apparatus is capable of wet cleaning the surface to be cleaned, i.e., is formed as a wet surface cleaning apparatus, and recovers liquid after cleaning the surface to be cleaned back into the surface cleaning apparatus. Unless otherwise specified in the present disclosure, the surface to be cleaned is disposed substantially horizontally, i.e., is formed as a horizontal plane.

[0031] The base station 900 is configured for docking a surface cleaning device and is capable of providing power to the surface cleaning device to charge a rechargeable battery of the surface cleaning device.

[0032] Although the surface cleaning device of the present disclosure is shown in the form of a floor scrubber, those skilled in the art will appreciate that the term "surface cleaning device" may be used herein to describe various types of household cleaning devices, including autonomous processing devices configured to provide some semi-autonomous or autonomous capabilities. Examples of household cleaning devices include floor scrubbers, vacuum cleaners with mopping capabilities, and robot vacuums with scrubbing capabilities.

[0033] Refer again Figure 1 In the present disclosure, the surface cleaning system is intended to support surface cleaning equipment in cleaning and maintenance. In some examples, the surface cleaning equipment may be configured to perform a semi-autonomous or autonomous dirt particle collection process. For example, the surface cleaning equipment may include a wet floor cleaning device. The surface cleaning equipment may include one or more controllers connected to sensors, which are disposed on or inside the housing of the surface cleaning equipment. The controller may be connected to or integrated with a connecting component, and is configured to collect data from the sensors. In some examples, the surface cleaning equipment may identify the degree of dirtiness of the floor within a cleaning cycle through sensors. This identification may be based on sensor information and the usage time of the agitator.

[0034] The controller can also be configured to transmit output signals to controlled components of the surface cleaning device and execute a cleaning operation cycle. Examples of controlled components include an electric suction source, a motor driving a roller brush, etc.

[0035] The base station 900 may be configured to perform a self-cleaning cycle and a thermal drying cycle, whereby corresponding cleaning and maintenance operations are initiated when the surface cleaning apparatus is received and supported on the base station 900 .

[0036] In some embodiments, various mechanisms and algorithms can be employed to determine the maintenance mode for the surface cleaning device's roller brush 630 to suit the current operating conditions. These operating conditions can be user-defined or identified by the surface cleaning device using occupancy data related to the environment, such as a record of the soiling level of the surface being cleaned. Automatically selecting a cleaning mode through these mechanisms and algorithms can reduce the power consumption of the surface cleaning device, thereby improving its operating efficiency.

[0037] like Figure 1 As shown, in some embodiments, the surface cleaning system may further include an access point 1100, a server 1200, a remote control device 1300, a database 1400, and a wireless communication link. The server 1200 may include a data server, a cloud server, a server associated with an automation service provider, a proxy server, a mail server, a web server, an application server, a database server, a communication server, a home server, a mobile server, or any combination thereof.

[0038] For example, a surface cleaning device can upload data (e.g., notifications) to an application hosted by server 1200 for publishing data related to autonomous functions performed by the surface cleaning device. For example, a user can view the data published by the surface cleaning device through an application running on remote control device 1300 to view the functions performed by the surface cleaning device. Server 1200 can also transmit various information to the surface cleaning device, such as location information, motion control instructions, and other information, instructions, or commands related to the autonomous operation of the surface cleaning device.

[0039] Database 1400 can store data, including operational information such as location information, control instructions, consumables information (e.g., roller brush 630 information, filter information), water fullness information, dirtiness information, battery information, and other information, instructions, or commands related to maintenance operations of the surface cleaning device (e.g., the duration of a self-cleaning cycle, the duration of a hot drying cycle, the amount of charge remaining during maintenance of the surface cleaning device by base station 900, etc.). The surface cleaning device can retrieve the stored data from database 1400 via access point 1100.

[0040] In some cases, the surface cleaning device can also communicate directly with another device (e.g., using a peer-to-peer (P2P) or device-to-device (D2D) protocol), such as a smartphone, a Bluetooth device, a Wi-Fi device, a mobile station, a user station, a mobile client, etc.

[0041] The wireless communication links shown in the surface cleaning system may include uplink (UL) transmissions from the surface cleaning device to the access point 1100 or the server 1200, and / or downlink (DL) transmissions from the access point 1100 or the server 1200 to the surface cleaning device. Downlink transmissions may also be referred to as forward link transmissions, while uplink transmissions may also be referred to as reverse link transmissions. The wireless communication links may transmit bidirectional and / or unidirectional communications. The wireless communication links may include one or more connections, including but not limited to Wi-Fi, Bluetooth, point-to-point, LAN, wireless local area network (WLAN), Ethernet, fiber optic, and / or other connection types associated with wireless communication systems.

[0042] In some examples, environment 2000 can be part of a structure, such as a residence or commercial building. For example, environment 2000 can be a home, and more specifically, a room, including one or more different floor materials and objects located throughout the room. The surface cleaning device can be configured to perform cleaning functions within the confines of the home. For example, the surface cleaning device can be manually controlled by a user to perform a semi-autonomous (or autonomous) collection process of surface dirt particles within the aforementioned geographic boundaries.

[0043] When the wet household surface cleaning device is working, the roller brush 630 with liquid rotates at high speed and is adhered to a large amount of dirt. In order to avoid secondary pollution, the structural design needs to maintain the real-time self-cleaning of the roller brush 630. Usually, the shell 620 is used to shield and collect the dirt and liquid particles thrown out by the centrifugal force when the roller brush 630 rotates at high speed, and a scraper bar that interferes with it is set in the accommodating chamber to scrape off the dirt adhered to the surface of the roller brush 630 in real time and suck it away through the suction nozzle. Due to structural design reasons, the roller brush 630 cannot be separated from the cover body and the accommodating chamber and set independently. The wet household surface cleaning device will encounter difficult-to-reach cleaning areas during the cleaning operation, such as the junction of the ground and the wall. In order to ensure cleaning efficiency, wet household surface cleaning equipment needs to continuously design space for the roller brush 630 to clean the edges. However, due to the above-mentioned design reasons, it is difficult for the roller brush 630 itself to achieve the expected edge cleaning effect. Often, when the outer shell component of the surface cleaning equipment reaches the wall, the edge of the roller brush 630 still has not reached the target cleaning area, and the target cleaning area cannot be effectively cleaned. It is also easy to cause collisions and bumps between the wall or the surface cleaning equipment.

[0044] Figure 2 Schematic diagram of the structure of a surface cleaning device according to an embodiment of the present disclosure.

[0045] like Figure 2As shown, the surface cleaning device of the present disclosure is configured to wet clean a surface to be cleaned, wherein the surface to be cleaned may be a floor surface, preferably a household floor surface. Furthermore, after the surface cleaning device wet cleans the floor surface, dirt and liquid (sewage) remaining after cleaning the surface to be cleaned can be recovered into the surface cleaning device.

[0046] like Figure 2 As shown, the surface cleaning device may include components such as a handle portion 100 , a main body portion 200 , a supply tank 300 , a recovery tank 400 , a connecting portion 500 , and a floor brush assembly 600 .

[0047] The handle portion 100 is detachably provided on the main body portion 200 , and the user can operate the surface cleaning device by operating the handle portion 100 , and enable the main body portion 200 to be in an upright state (non-working state) and a tilted state (working state).

[0048] More preferably, a user interaction button can be provided on the handle portion 100, and the user can control the surface cleaning device by triggering the user interaction button, such as controlling the start and stop of the surface cleaning device, and controlling the liquid supply speed of the surface cleaning device and the suction power of the electric suction source, etc., thereby providing a better user experience of the surface cleaning device.

[0049] In one example, the main body 200 forms the main body of the surface cleaning device; the main body 200 is pivotally connected to the floor brush assembly 600 via the connecting portion 500; and the main body 200 can also accommodate components such as the recovery tank 400. In the present disclosure, the recovery tank 400 is detachably mounted to the side of the main body 200, and the mounting position can be located at the rear side of the main body. The supply tank 300 is detachably mounted to a portion of the floor brush assembly 600.

[0050] In one example, the thickness of the recovery tank 400 is set to be smaller than the width, and the height of the supply tank 300 is set to be smaller than the width, so that sufficient capacity can be ensured and the overall height of the surface cleaning equipment can be less than a predetermined height, such as 120 mm, after the main body 200 is laid flat.

[0051] The supply tank 300 is flat and includes a cavity formed by multiple walls to accommodate cleaning liquid, and the capacity of the supply tank 300 can be set to 200 mL, etc. In addition, the supply tank 300 may include a handle by which the user can install or remove the supply tank 300 from the floor brush assembly 600.

[0052] The supply tank 300 is used to store the cleaning liquid to be distributed. Accordingly, the supply tank 300 can be connected to a liquid dispenser (not shown in the figure), so that the cleaning liquid in the supply tank 300 can be pressurized by the liquid dispenser and provided to the floor brush assembly 600, or provided to the surface to be cleaned near the floor brush assembly 600, thereby enabling wet cleaning of the surface to be cleaned to be achieved by the cleaning liquid.

[0053] In one example, the liquid dispenser may include a liquid supply pump that can draw cleaning liquid from the supply tank 300, pressurize the cleaning liquid, and provide it to the liquid outlet component, and provide the pressurized cleaning liquid to the roller brush 630 of the floor brush assembly 600 or to the surface to be cleaned near the roller brush 630 through the liquid outlet component.

[0054] In the present disclosure, the cleaning liquid can be one or more of any suitable liquids, including but not limited to cleaning water, concentrated detergent, diluted detergent, or mixtures thereof, etc. In addition, the cleaning liquid can be a room temperature cleaning liquid or a high temperature cleaning liquid.

[0055] The main body 200 is formed with a accommodating space, and the recovery tank 400 is detachably arranged on the main body 200 and located in the accommodating space, so that when a large amount of liquid is stored in the recovery tank 400, the user can remove the recovery tank 400, pour out the sewage inside, and clean up the solid waste. At this time, part of the outer surface of the recovery tank 400 forms part of the outer surface of the surface cleaning device.

[0056] In order to recover the liquid after cleaning the surface to be cleaned, the recovery tank 400 can be connected to the floor brush assembly 600 via a recovery pipeline. Accordingly, the mixture of dirt, sewage and gas (solid-liquid mixture) can be recovered to the recovery tank 400 via the recovery pipeline. In one example, a solid-liquid separator can be provided in the recovery tank 400 to separate the mixture of solids and liquids recovered by the surface cleaning device after cleaning the surface to be cleaned in the solid-liquid separator, so that the separated solids are retained in the solid-liquid separator and the separated liquid is stored inside the recovery tank 400.

[0057] In the present disclosure, the surface cleaning device also includes an electric suction source (not shown), which may include a vacuum motor, thereby generating a vacuum (negative pressure) through the electric suction source. Simultaneously, the electric suction source can be connected to the recovery tank 400, thereby providing this negative pressure to the recovery tank 400, thereby achieving a forced flow of gas and wastewater within the recovery line. In the present disclosure, the gas discharged from the electric suction source can flow to the exterior of the surface cleaning device through gaps in portions of the outer surface of the surface cleaning device.

[0058] In one example, the connection portion 500 may include a universal joint so that the main body 200 can rotate relative to the floor brush assembly 600 in two directions.

[0059] In another example, the connection portion 500 may include a multi-axial joint, which can couple the main body 200 with the floor brush assembly 600 to allow the main body 200 to rotate relative to the floor brush assembly 600 along the first direction and the second direction.

[0060] The main body 200 can be pivoted to an upright position (also referred to as a storage position) via the connection portion 500. In this position, the angle between the main body 200 and the surface (or floor) on which the floor brush assembly 600 is placed is 80° to 90°, preferably approximately 80°. In this position, the surface cleaning device is in a self-supporting position (also referred to as an upright position), meaning that the floor brush assembly 600 can support the main body 200 and other components, allowing the device to achieve an upright position without the need for any other objects.

[0061] In order to further improve the edge cleaning ability of the vacuum cleaner, such as Figure 3 and Figure 4 As shown, the floor brush assembly 600 of the present disclosure may include: a base portion 610 , a housing portion 620 , a roller brush 630 , a supply tank 300 , a suction nozzle and a cleaning head assembly 650 and other components.

[0062] The base portion 610 and the housing portion 620 of the present disclosure may collectively form a housing assembly of the floor brush assembly 600. The housing assembly is pivotally connected to the main body 200 via the connecting portion 500. Furthermore, the housing assembly is configured to be movable across the floor surface to be cleaned. For example, the base portion 610 of the housing assembly may be provided with two rolling wheels, which can be rolled on the surface to be cleaned to enable the housing assembly to move across the surface to be cleaned.

[0063] The housing assembly defines side walls 621. Specifically, the side walls 621 are located on both sides of the housing assembly and extend vertically substantially perpendicular to the surface to be cleaned. The side walls 621 define the sides of the housing assembly and provide a projected width of the floor brush assembly transverse to the direction of travel during cleaning.

[0064] The housing assembly defines a housing chamber. Specifically, the housing chamber is located in the front half of the floor brush assembly 600 (the front, in the direction of movement of the surface cleaning device when cleaning the surface to be cleaned). The housing chamber accommodates the roller brush 630, which is correspondingly located in the front half of the floor brush assembly 600. In one specific embodiment, the front surface of the base portion 610 and a portion of the lower surface of the housing portion 620 both form at least a portion of the sidewalls of the housing chamber; that is, the housing chamber of the present disclosure is formed by the base portion 610 and the housing portion 620.

[0065] The roller brush 630 is configured to agitate the surface to be cleaned. Specifically, the roller brush 630 is detachably mounted on the base portion 610 and can be driven to rotate. In other words, when the surface cleaning device is performing a cleaning operation or a self-cleaning operation, the roller brush 630 can be driven by the motor to rotate, thereby causing the roller brush 630 to frictionally contact the surface to be cleaned and achieve cleaning of the surface to be cleaned. During the frictional contact between the roller brush 630 and the surface to be cleaned, cleaning liquid can be supplied to the roller brush 630, thereby achieving wet cleaning of the surface to be cleaned.

[0066] In one example, the roller brush 630 of the floor brush assembly 600 may be a drum-type cleaning member. Those skilled in the art will appreciate that the floor brush assembly 600 may also be a crawler-type cleaning device or a rotary disk-type cleaning device. In this case, the roller brush 630 of the floor brush assembly 600 may be a crawler-type cleaning member or a rotary disk-type cleaning member. In this disclosure, a drum-type cleaning member is used as an example for description.

[0067] In one embodiment, the motor can be disposed in the housing assembly and drive the roller brush 630 to rotate by means of a synchronous belt drive (i.e., the roller brush 630 is operably connected to the motor); in another embodiment, the motor can be disposed in the roller brush 630 and can drive the roller brush 630 to rotate; in the present disclosure, the roller brush 630 can rotate along a first axis; more preferably, the first axis can be a horizontal straight line in the transverse direction, the transverse direction being a direction perpendicular to the front-to-back direction; the front-to-back direction is the direction of movement of the surface cleaning device when cleaning the surface to be cleaned.

[0068] The shell portion 620 is disposed on the base portion 610 and is configured to partially surround the roller brush 630 . Furthermore, the shell portion 620 can interfere with at least a portion of the outer surface of the roller brush 630 to make the cleaning liquid on the roller brush 630 more evenly distributed.

[0069] In one example of the present disclosure, the cleaning head assembly 650 is driven to be able to move between a raised position and a lowered position; the cleaning head assembly 650 is farther away from the surface to be cleaned in the raised position than in the lowered position; and, in the lowered position, the working range of the cleaning head assembly 650 is outside the horizontal plane projection of the housing assembly; that is, the cleaning head assembly 650 of the present disclosure is capable of cleaning an area outside the projection of the housing assembly on the horizontal plane.

[0070] That is to say, when the surface cleaning device of the present disclosure is in use, for example, when cleaning a horizontal surface to be cleaned, the cleaning head assembly 650 is not always in contact with the surface to be cleaned (e.g., a horizontal surface), but selectively contacts the surface to be cleaned. For example, when the surface cleaning device is cleaning a surface to be cleaned at a location such as a corner, the cleaning head assembly 650 can be controlled to descend and be in a lowered position, at which point the cleaning head assembly 650 can contact the surface to be cleaned and clean the surface to be cleaned. Then, when the surface cleaning device is away from a location such as a corner, the cleaning head assembly 650 can be controlled to rise, thereby placing the cleaning head assembly 650 in an elevated position. In this elevated position, the cleaning head assembly 650 is in a non-working state, and cleaning liquid may not be supplied to the cleaning head assembly 650, nor may the cleaning head assembly 650 be driven to rotate. In one example, the cleaning head assembly 650 of the present disclosure is disposed near the side wall on the right side of the floor brush assembly 600.

[0071] At least one sliding member 700 is arranged on the side wall 621, so that when the surface cleaning device cleans along the wall, the side of the housing assembly (i.e., the side of the floor brush assembly 600) can maintain a distance from the external object (such as the wall) to prevent collision or wear on the cleaning head assembly 650.

[0072] In this disclosure, Figure 5 and combined Figure 3 and 4When the sliding member 700 is provided as two, it can be arranged on the side wall 621 on the right side of the forward direction of the floor brush assembly 600. That is to say, when the surface cleaning device is actually used, due to the particularity of the user's walking trajectory, the right side of the floor brush assembly 600 is generally easy to contact the wall, etc. Accordingly, setting the sliding member 700 on the right side wall 621 can make it easier for the sliding member 700 to form an isolation distance D between the floor brush assembly and the wall W, which has a better use effect. On the other hand, the sliding member 700 can also be provided as a plurality of sliding members 700, and accordingly, multiple sliding members 700 are extended at the side wall 621 on the right side of the forward direction of the surface cleaning device. The sliding members 700 can be arranged at the same horizontal height relative to the surface to be cleaned on the side, or they can be arranged at different horizontal heights. Therefore, as long as the sliding member 700 contacts the wall surface, the sliding member 700 can be used to isolate the wall surface located on the side of the floor brush assembly from the side wall 621 of the floor brush assembly.

[0073] In one example, if Figure 3 The slider 700 can pivot relative to the side wall 621. For example, the slider 700 can include a wheel 701 that pivots about a central axis. The central axis of the wheel 701 is located on the floor brush assembly, and at least a portion of the wheel protrudes from the side of the floor brush assembly to form a distance between the outermost side of the wheel and the side of the floor brush assembly. Generally speaking, the axial direction of the central axis should be parallel to the side. In this way, when contacting the wall, it can rotate in the direction of movement of the surface cleaner and roll along the wall under the action of forces toward the wall and forces parallel to the wall.

[0074] Of course, the sliding member 700 can also be configured as a non-rotating body, for example, a slider protruding from the side and fixed relative to the side. Rolling elements are provided on the outward-facing surface of the slider that can contact the wall. In another example, the outer surface of the slider does not have rolling elements, but is made of a material with a low coefficient of friction. When in contact with the wall, sliding friction can be maintained at a low coefficient of friction, which can also achieve the objectives of the present disclosure.

[0075] In an example, refer to Figure 5The housing assembly of the floor brush assembly includes a substantially planar sidewall 621. For example, the sidewall 621 may be located in a vertical plane, and at least a portion of the sliding member 700 extends outwardly on the sidewall. That is, in the present disclosure, the sliding member 700 protrudes beyond the sidewall 621 on the sidewall, and the outermost side of the sliding member 700 is located outside the projection of the floor brush assembly 600 on the horizontal plane. Therefore, when the sidewall 621 is about to contact the wall, it will be blocked by the sliding member 700. The sliding member 700 forms a gap between the sidewall 621 and the wall. When the surface cleaning device reciprocates, a sliding connection is formed between the sliding member 700 and the wall to avoid friction and collision between the sidewall 621 and the wall.

[0076] In one example, if Figure 3 As shown, the cleaning head assembly 650 is capable of cleaning areas outside the projection of the housing assembly on the horizontal plane, so the projection of at least a portion of the cleaning head assembly 650 is located outside the housing assembly. When cleaning along a wall, if the isolation distance between the side wall 621 and the wall is less than the distance of the cleaning head assembly 650 outside the projection of the housing assembly, the wall will continue to squeeze the cleaning head assembly 650. Over time, the cleaning head assembly 650 will wear out before other components. Therefore, in one example of the present disclosure, the housing assembly includes a substantially planar side wall 621, for example, the side wall 621 can be located in a vertical plane, and at least a portion of the sliding member 700 extends outward on the side wall 621, but the working range of the cleaning head assembly does not exceed the horizontal plane projection of the sliding member 700, such as Figure 6 Therefore, when the cleaning head assembly just contacts or is about to contact the wall, it will be blocked by the sliding member 700. The sliding member 700 forms a gap D between the side wall 621 and the wall W. When the surface cleaning device reciprocates, a sliding connection is formed between the sliding member 700 and the wall W to avoid friction and collision between the cleaning head assembly 650 and the wall.

[0077] In one example, if Figure 7 As shown, the housing assembly of the present disclosure defines an escape portion 611 , and at least a portion of the cleaning head assembly 650 is disposed within the escape portion 611 .

[0078] In one embodiment, the lower surface of the base portion 610 is formed into a substantially planar shape, that is, the base portion 610 has a substantially planar bottom wall, wherein at least a portion of the bottom wall of the base portion 610 is recessed upward to form an escape portion 611, whereby the escape portion 611 includes an escape space, and the escape portion 611 includes an opening 611A formed on the side wall 621. In the present disclosure, the cleaning head assembly 650 is rotatably disposed at the escape portion 611, so that when the cleaning head assembly 650 rotates or when the cleaning head assembly 650 changes height relative to the bottom wall of the base portion 610, at least a portion of the cleaning head assembly 650 can pass through the side wall 621 through the opening 611A.

[0079] Randomly distributing the sliding members 700 on the side wall 621 may result in uneven support of the sliding members 700 on the wall, thereby causing the side wall 621 to tilt relative to the side of the wall under the action of the lever, which is undesirable. In one example, two sliding members 700 may be distributed near the opening 611A to better distribute the support force on the wall. Specifically, the sliding members 700 disclosed in the present invention include more than two, which are distributed laterally along the side wall on the upper side of the opening 611A. In another example, the sliding members 700 distributed laterally along the side wall 621 may also be located at different horizontal heights.

[0080] like Figure 3 、 4 As shown in Figures 7 and 8, the floor brush assembly 600 of the present disclosure further includes a first sensor assembly 690, which is configured to at least generate usage data indicating that the surface cleaning device is in proximity to a wall. The first sensor assembly 690 can be disposed in a housing assembly of the floor brush assembly 600, such as the housing portion 620 of the housing assembly; of course, the first sensor assembly 690 can also be disposed in the base portion 610 of the housing assembly. More preferably, the first sensor assembly 690 can be located directly above the cleaning head assembly 650.

[0081] The first sensor assembly 690 may be a proximity sensor, for example, a distance sensor, which is used to detect a first distance between the side wall 621 of the floor brush assembly 600 and the wall.

[0082] In some embodiments, the side wall 621 of the floor brush assembly 600 is arranged approximately vertically. Specifically, the side wall 621 of the housing assembly of the floor brush assembly 600 is formed as a substantially vertical plane, which is substantially perpendicular to the lateral direction of the floor brush assembly 600. More specifically, the base portion 610 and / or the housing portion 620 of the housing assembly of the floor brush assembly 600 each include a substantially vertically arranged side wall 621. Accordingly, the first sensor assembly 690 is arranged on the substantially vertical side wall 621, thereby enabling the first sensor assembly 690 to accurately detect the distance between the side wall 621 of the floor brush assembly 600 and the wall (external object).

[0083] In one embodiment of the present disclosure, the distance sensor is provided on the side wall 621 on the right side of the forward direction of the floor brush assembly 600. That is to say, when the surface cleaning device is actually used, due to the particularity of the user's walking trajectory, the right side of the floor brush assembly 600 is generally easy to contact the wall or the like. Accordingly, the distance sensor is provided on the right side wall 621, which can make it easier for the distance sensor to detect the distance between the floor brush assembly 600 and the wall, thereby achieving better use effect. On the other hand, the distance sensor can also be provided in two, and accordingly, the distance sensor can be provided on the side wall 621 on the left and right sides of the forward direction of the floor brush assembly 600. Thus, the distance sensor can sense the distance between the wall surfaces on both sides of the floor brush assembly 600 and the floor brush assembly 600.

[0084] In one example, the distance sensor includes an optical sensor, an infrared sensor, a laser sensor, or the like. In this case, the distance sensor may include a transmitting unit and a receiving unit. The transmitting unit is capable of transmitting a light signal, an infrared signal, or a laser signal, and the receiving unit is capable of receiving an echo signal of the light signal, infrared signal, or laser signal. The distance between the distance sensor and the wall is determined based on the time difference between the light signal, infrared signal, or laser signal transmitted by the transmitting unit and the echo signal. Furthermore, because the distance sensor is fixed in position on the housing assembly, it can determine the distance between the housing assembly (i.e., the floor brush assembly 600) and the wall.

[0085] In one example of the present disclosure, a through hole is provided on the housing portion 620 , and both the transmission signal and the echo signal of the distance sensor can be transmitted through the through hole.

[0086] The surface cleaning device of the present disclosure may also include a controller that can be connected to the first sensor assembly 690 so as to receive the distance between the floor brush assembly 600 and the wall detected by the first sensor assembly 690, and can control the action of the motor according to the distance between the floor brush assembly 600 and the wall. Specifically, the controller can turn on and off the power supply to the motor; at this time, when the power supply to the motor is turned on, the motor can be in a working state, and accordingly, the cleaning head assembly 650 can also be in a working state, thereby, the cleaning head assembly 650 can clean the surface to be cleaned, especially the corner position near the wall; when the power supply to the motor is turned off, the motor is in a non-working state, and accordingly, the cleaning head assembly 650 is also in a non-working state. At this time, the cleaning head assembly 650 can be in a raised position so that the cleaning head assembly 650 does not contact the surface to be cleaned.

[0087] More specifically, the controller can compare the first distance between the floor brush assembly 600 and the wall detected by the first sensor assembly 690 with a preset distance threshold. When the first distance is greater than the preset distance threshold, it indicates that the floor brush assembly 600 is not close to the wall. At this time, when the cleaning head assembly 650 is in the raised position, the cleaning head assembly 650 is kept in the raised position; when the cleaning head assembly 650 is in the lowered position, the controller can control the cleaning head assembly 650 to rise from the lowered position to the raised position, and make the cleaning head assembly 650 in a non-working state; and after the cleaning head assembly 650 is in the raised position, the power supply to the motor is turned off.

[0088] In another case, when the first distance is less than or equal to the preset distance threshold, it indicates that the floor brush assembly 600 is working at a position close to the wall. At this time, when the cleaning head assembly 650 is in the raised position, the power supply of the motor is turned on, so that the motor is in a working state, and when the motor is working, the cleaning head assembly 650 can be lowered, that is, the cleaning head assembly 650 can be lowered from the raised position to the lowered position. In the lowered position, the cleaning head assembly 650 can clean the surface to be cleaned; when the cleaning head assembly 650 is in the lowered position, the working state of the motor is maintained so that the cleaning head assembly 650 can continue to clean the surface to be cleaned.

[0089] In a similar working process, the controller of the present invention can also increase and decrease the output power of the motor; specifically, when the first distance is greater than the preset distance threshold, if the motor is in a working state, the output power of the motor can be reduced; when the first distance is less than or equal to the preset distance threshold, the output power of the motor can be increased over time, so that the cleaning head assembly 650 has a better edge cleaning effect.

[0090] On the other hand, the controller of the present disclosure can also increase and decrease the speed of the motor. Specifically, when the first distance is greater than a preset distance threshold, if the motor is in operation, the motor speed can be reduced; when the first distance is less than or equal to the preset distance threshold, the motor speed can be increased over time, thereby enabling the cleaning head assembly 650 to achieve better edge cleaning results.

[0091] In the present disclosure, the controller can also control the electric suction source. Specifically, the controller can turn on and off the power supply to the electric suction source, so that the electric suction source is in a working state. In addition, the controller can also increase and decrease the suction power of the electric suction source. Specifically, when the first distance is greater than the preset distance threshold, the cleaning head assembly 650 is in a non-working state, and the suction power of the electric suction source can be reduced; on the contrary, when the first distance is greater than the preset distance threshold, the cleaning head assembly 650 is in a working state, and the controller increases the suction power of the electric suction source, so that the cleaning head assembly 650 and the roller brush 630 can both obtain the negative pressure required to clean the surface to be cleaned, so that the surface cleaning device of the present disclosure has a better cleaning effect.

[0092] The surface cleaning device in the present disclosure includes a normal cleaning mode and a side cleaning mode. In the normal cleaning mode, the cleaning head assembly 650 is in a raised position and the cleaning head assembly 650 does not contact the surface to be cleaned, and accordingly, the motor is also in a non-working state; in the side cleaning mode, the cleaning head assembly 650 is in a lowered position and the cleaning head assembly 650 contacts the surface to be cleaned and cleans the surface to be cleaned.

[0093] In the present disclosure, whether the surface cleaning device is in the edge cleaning mode is confirmed based on the size between the first distance and the preset distance threshold; specifically, when the first distance is less than or equal to the preset distance threshold, it is determined that the surface cleaning device is in the edge cleaning mode. In this edge cleaning mode, the working time of the edge cleaning mode is recorded, that is, the duration of the edge cleaning mode; further, when the duration is greater than or equal to the preset time threshold, after the selected time is reached, cleaning liquid can be optionally applied to the cleaning head assembly 650 to increase the adhesion of the cleaning head assembly 650 to the particles. Thus, when the surface cleaning device is in the edge cleaning mode from the time it is turned on, it can be in the edge cleaning mode all the time, and cleaning liquid is applied to the cleaning head assembly 650 until the edge cleaning mode ends. During the entire edge cleaning mode, the sliding member 700 ensures that the side wall 621 and / or the cleaning head assembly do not slide and wear against the wall.

[0094] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments / methods or examples. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0095] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0096] Those skilled in the art will appreciate that the above embodiments are merely intended to clearly illustrate the present disclosure and are not intended to limit the scope of the present disclosure. Other changes or modifications may be made based on the above disclosure, and such changes or modifications are still within the scope of the present disclosure.

Claims

1. A surface cleaning device, characterized in that include: upright subject; a floor brush assembly pivotally connected to the upright body; At least one cleaning executive member, the cleaning executive member being located on the upright body or the floor brush assembly; at least one motor, the motor being configured to provide power to the cleaning executive member; At least one sliding member is located on at least one side of the floor brush assembly and protrudes from the side.

2. The surface cleaning device according to claim 1, wherein There are more than two sliding members, which are distributed at intervals along the horizontal direction on the side.

3. The surface cleaning device according to claim 2, characterized in that Two or more sliding members are laterally spaced apart along the same horizontal height on the side surface.

4. The surface cleaning device according to claim 1, wherein include: At least one distance sensor is connected to the at least one motor, the distance sensor and the at least one sliding member are located on the same side of the floor brush assembly and are used to sense the distance between the side and an external object.

5. The surface cleaning device according to claim 4, characterized in that The distance sensor includes an optical sensor.

6. The surface cleaning device according to claim 1, wherein The floor brush assembly includes a housing assembly, the housing assembly includes a vertical side wall, and the at least one sliding member is located on the side wall.

7. The surface cleaning device according to claim 6, characterized in that The at least one sliding member is located on the side wall on the right side of the forward direction of the floor brush assembly.

8. The surface cleaning device according to claim 1, wherein The floor brush assembly further comprises a cleaning head assembly, which is close to the side where the at least one sliding member is located.

9. The surface cleaning device according to claim 8, characterized in that The cleaning head assembly is driven to be movable between a raised position and a lowered position, wherein the cleaning head assembly is further away from the surface to be cleaned in the raised position than in the lowered position.

10. The surface cleaning device according to claim 9, wherein In the lowered position, the working range of the cleaning head assembly is outside the horizontal plane projection of the side surface.

11. The surface cleaning device according to claim 10, wherein The side includes an opening extending upwardly from a bottom portion of the side, and in the lowered position, at least a portion of the cleaning head assembly passes through the opening.

12. The surface cleaning apparatus of claim 11, wherein: The position of the sliding member on the side surface is above the opening.

13. The surface cleaning apparatus of claim 9, wherein: In the lowered position, the working range of the cleaning head assembly does not exceed the horizontal plane projection of the slider.

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