Base station and surface cleaning system

Abstract

The utility model provides a base station which is used for stopping a self-moving type surface cleaning device and comprises a cleaning tray, a foam spray head and a cleaning foam containing part. The cleaning tray is provided with a protruding structure, and the protruding structure is configured to at least partially interfere with a cleaning piece of the self-moving surface cleaning equipment when the self-moving surface cleaning equipment stops on the base station; the foam nozzle is configured to output cleaning foam towards the protruding structure, and is configured to keep a preset distance from a cleaning piece of the surface cleaning equipment when the surface cleaning equipment is located on the base station; the cleaning foam containing part is located in the base station and connected with the foam spray head through the cleaning foam conveying system. The utility model further provides a surface cleaning system.

Description

Technical Field

[0001] The present disclosure relates to a base station and a surface cleaning system, belonging to the technical field of household cleaning equipment. Background Art

[0002] What is provided in this part is only background information related to the present disclosure, and it is not necessarily prior art.

[0003] With the development of technology, intelligent devices represented by floor cleaning robots have entered thousands of households.

[0004] When a floor cleaning robot is in use, it stores solid waste on the ground in a dust box and stores liquid waste generated by cleaning the ground and the like in a sewage tank; due to the limited capacities of the dust box and the sewage tank of the floor cleaning robot, when cleaning a large area of the ground with the floor cleaning robot, the dust box and the sewage tank of the floor cleaning robot need to be frequently cleaned, resulting in a poor user experience.

[0005] When a floor cleaning robot is in use, a base station and other devices are generally equipped for the floor cleaning robot to provide services such as charging and self-cleaning through the base station. However, when the base station in the prior art performs self-cleaning on the floor cleaning robot, the effect is poor. Summary of the Utility Model

[0006] In order to solve one of the above technical problems, the present disclosure provides a base station and a surface cleaning system.

[0007] According to one aspect of the present disclosure, there is provided a base station for a self-mobile surface cleaning device to dock, which includes:

[0008] A cleaning tray having a protruding structure configured to at least partially interfere with a cleaning member of the self-mobile surface cleaning device when the self-mobile surface cleaning device docks at the base station;

[0009] A foam nozzle configured to output cleaning foam toward the protruding structure and configured to maintain a predetermined distance from the cleaning member of the surface cleaning device when the surface cleaning device is located at the base station; and

[0010] A cleaning foam accommodating part located inside the base station, and the cleaning foam accommodating part is connected to the foam nozzle through a cleaning foam transmission system.

[0011] For the base station according to at least one embodiment of the present disclosure, the cleaning foam transmission system includes a first control element.

[0012] For the base station according to at least one embodiment of the present disclosure, the first control element is a peristaltic pump.

[0013] A base station according to at least one embodiment of the present disclosure, the foam ejected by the foam nozzle is fan-shapedly distributed.

[0014] A base station according to at least one embodiment of the present disclosure, when the self - mobile surface cleaning device docks at the base station, the foam trajectory ejected by the foam nozzle is substantially lower than the bottom surface of the cleaning member.

[0015] A base station according to at least one embodiment of the present disclosure, when the self - mobile surface cleaning device docks at the base station, the foam trajectory ejected by the foam nozzle is substantially directed between the bottom surface of the cleaning member and the protruding structure.

[0016] A base station according to at least one embodiment of the present disclosure, the upper surface of the protruding structure includes a groove, and the nozzle axis of the foam nozzle is lower than the upper surface of the protruding structure and higher than the bottom surface of the groove.

[0017] A base station according to at least one embodiment of the present disclosure, the base station includes a storage cavity for accommodating at least a part of the self - mobile surface cleaning device, the storage cavity includes a rear wall, and the foam nozzle is located on the rear wall.

[0018] A base station according to at least one embodiment of the present disclosure, the foam nozzle is located at the middle position of the rear wall.

[0019] According to another aspect of the present disclosure, there is provided a surface cleaning system, which includes a self - mobile surface cleaning device and the above - mentioned base station. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, are used to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure, and the drawings are included in this specification and form a part of this specification.

[0021] Figure 1 is a schematic structural diagram of a surface cleaning system according to an embodiment of the present disclosure.

[0022] Figure 2 is a schematic structural diagram of a self - mobile surface cleaning device according to an embodiment of the present disclosure.

[0023] Figure 3 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.

[0024] Figure 4 is Figure 3 an enlarged schematic view of part A.

[0025] Figure 5Partial structural schematic diagram of a base station according to an embodiment of the present disclosure.

[0026] Figure 6 Structural schematic diagram of a foaming assembly according to an embodiment of the present disclosure.

[0027] Specifically, the reference numerals in the figure are as follows:

[0028] 100 Surface cleaning device

[0029] 110 Housing assembly

[0030] 120 Side brush assembly

[0031] 130 Sweeping assembly

[0032] 140 Steering wheel

[0033] 150 Traveling wheel

[0034] 160 Cleaning part

[0035] 900 Base station

[0036] 910 Main body part

[0037] 920 Cleaning tray

[0038] 921 Protruding structure

[0039] 922 Cleaning tank

[0040] 923 Friction part

[0041] 924 Positioning groove

[0042] 930 Foam nozzle

[0043] 931 First main body

[0044] 932 Second main body

[0045] 933 Notch

[0046] 940 Supply tank

[0047] 950 Recovery tank

[0048] 960 Foaming assembly

[0049] 961 Foaming agent containing box

[0050] 962 Foam generator

[0051] 963 Cleaning foam containing part

[0052] 964 Cleaning foam transmission system. Specific embodiments

[0053] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant content and do not limit the present disclosure. Additionally, it should be noted that for the convenience of description, only the parts related to the present disclosure are shown in the drawings.

[0054] It should be noted that, without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. The technical solutions of the present disclosure will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0055] Unless otherwise specified, the exemplary embodiments / examples shown will be understood to provide exemplary features of various details of some ways in which the technical concept of the present disclosure can be implemented in practice. Therefore, unless otherwise specified, without departing from the technical concept of the present disclosure, the features of various embodiments / examples can be additionally combined, separated, interchanged, and / or rearranged.

[0056] In the drawings, cross-hatching and / or shading are generally used to make the boundaries between adjacent components clear. Thus, unless stated otherwise, the presence or absence of cross-hatching or shading does not convey or imply any preference or requirement for the specific material, material properties, dimensions, proportions, commonality between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. Additionally, in the drawings, for clarity and / or descriptive purposes, the dimensions and relative dimensions of the components may be exaggerated. When the exemplary embodiments can be implemented differently, the specific process sequences can be performed in an order different from that described. For example, two consecutively described processes can be performed substantially simultaneously or in an order opposite to that described. Further, the same reference numerals denote the same components.

[0057] When a component is referred to as being "on" or "above" another component, "connected to" or "coupled to" another component, the component can be directly on the other component, directly connected to or directly coupled to the other component, or there can be intermediate components. However, when the component is referred to as being "directly on" another component, "directly connected to" or "directly coupled to" another component, there are no intermediate components. For this reason, the term "connection" can refer to physical connection, electrical connection, etc., and can have or not have intermediate components.

[0058] For descriptive purposes, the present disclosure may use spatial relative terms such as "under", "below", "beneath", "lower", "above", "upper", "on top of", "higher", and "side (e.g., as in "sidewall")" to describe the relationship of one component to another (other) component as shown in the figures. In addition to the orientation depicted in the figures, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacturing. For example, if the device in the figures is flipped over, a component described as "under" or "beneath" another component or feature will then be positioned "above" the other component or feature. Thus, the exemplary term "under" can encompass both the "above" and "below" orientations. Additionally, the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations), and accordingly, the spatial relative descriptors used herein are to be interpreted.

[0059] The terms used herein are for the purpose of describing particular embodiments and are not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are also intended to include the plural forms. Additionally, when the terms "comprises" and / or "comprising" and their variants are used in this specification, it is stated that the features, integers, steps, operations, components, assemblies, and / or groups thereof are present, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, assemblies, and / or groups thereof. It should also be noted that, as used herein, the terms "substantially", "about", and other similar terms are used as approximate terms and not as terms of degree, and thus are used to account for the inherent deviations of the measurements, calculations, and / or provided values that would be recognized by one of ordinary skill in the art.

[0060] Figure 1 is a schematic structural diagram of a surface cleaning system according to an embodiment of the present disclosure.

[0061] As Figure 1 shown, the surface cleaning system of the present disclosure includes a surface cleaning device 100 and a base station 900. Among them, the surface cleaning device 100 is configured to be able to perform wet cleaning on the surface to be cleaned, and during the process of cleaning the surface to be cleaned, if the surface cleaning device 100 has insufficient power, the surface cleaning device 100 can be docked to the base station 900, and the base station 900 charges the rechargeable battery of the surface cleaning device 100, so that the surface cleaning device 100 has sufficient power and can complete the cleaning operation of all surfaces to be cleaned.

[0062] Accordingly, when the degree of dirtiness of the cleaning member 160 of the surface cleaning device 100 is greater than a preset threshold, the surface cleaning device 100 can also be docked at the base station 900, and the cleaning member 160 of the surface cleaning device 900 can be cleaned by the base station 900, so that the cleaning member 160 of the surface cleaning device 100 is in a clean state, and this process is also referred to as the self-cleaning process of the surface cleaning device 900. Accordingly, after the surface cleaning device 900 is self-cleaned, the surface to be cleaned can continue to be cleaned to complete the cleaning operation of all surfaces to be cleaned.

[0063] In a preferred embodiment, the surface cleaning device 100 may be a self-propelled surface cleaning device; as an example, the self-propelled surface cleaning device may be a sweeping robot, a mopping robot, or a sweeping and mopping robot.

[0064] Figure 2 is a schematic structural diagram of a self-moving surface cleaning device according to one embodiment of the present disclosure.

[0065] like Figure 2 As shown, the surface cleaning device 100 of the present disclosure is a sweeping and mopping integrated robot, and the forward direction of the self-moving surface cleaning device is marked as the front, and the reference Figure 2 The direction of view of the self-propelled surface cleaning device is the upper side. The direction away from the self-propelled surface cleaning device is the rear side. Figure 2 In the viewing direction, the rear of the self-mobile surface cleaning device refers to the lower side. Accordingly, the direction perpendicular to the front-rear direction can be defined as the front-rear direction.

[0066] The self-movable surface cleaning device may include a housing assembly 110, which can be formed as a body of the surface cleaning device 100; a steering wheel 140 and a running wheel 150 are provided at the bottom of the housing assembly 110, the steering wheel 140 is used to control the direction of travel of the self-movable surface cleaning device, and the running wheel 150 is used to drive the self-movable surface cleaning device forward. The steering wheel 140 is provided at the front position of the housing assembly 110, and the cleaning member 160 is rotatably connected to the bottom of the housing assembly 110, and is located at the rear position of the housing assembly 110.

[0067] like Figure 2As shown, the driving wheels 150 of the present disclosure can be provided in two numbers, and the two driving wheels 150 are respectively located at approximately the middle positions in the front-rear direction of the housing assembly 110 and on both sides in the left-right direction of the housing assembly 110; moreover, the steering wheel 140 is provided as one, which can be a universal wheel. Correspondingly, the universal wheel is provided at the middle position in the left-right direction of the self-propelled surface cleaning device and near the front end of the self-propelled surface cleaning device. Of course, the steering wheel 140 of the present disclosure can also be provided in two or more numbers.

[0068] During actual use, the driving wheels 150 can be driven to rotate, and by controlling the driving wheels 150 to rotate at a constant speed, the self-propelled surface cleaning device can move forward accordingly. Correspondingly, by controlling the driving wheels 150 to rotate at a non-constant speed, the steering of the self-propelled surface cleaning device can be controlled.

[0069] In the present disclosure, a side brush assembly 120 is further provided on the housing assembly 110. Among them, the side brush assembly 120 can be provided as one or two; Figure 2 In the shown implementation form, the side brush assembly 120 is provided as two, and the two side brush assemblies 120 are provided on the left and right sides at the front end of the housing assembly 110. Thus, by rotating the side brush assembly 120, the dirt on the surface to be cleaned can be disturbed, and the cleaning of the surface to be cleaned can be achieved.

[0070] In addition, a cleaning assembly 130 is further provided on the housing assembly 110. The cleaning assembly 130 is provided at the middle position in the front-rear direction of the housing assembly 110, and its length direction is the width direction of the housing assembly 110. More specifically, the cleaning assembly 130 can be a rotary brush, and the rotary brush is rotatably connected to the housing assembly 110, and the rotation axis of the rotary brush is parallel to the surface to be cleaned, such as parallel to the ground. In other embodiments of the present disclosure, the cleaning assembly 130 can be a structure well known to those skilled in the art. Figure 2 The specific structure when the cleaning assembly is a rotary brush is shown. The rotation axis of the rotary brush is parallel to the surface to be cleaned. When the cleaning disk rotates, the surface to be cleaned can be cleaned, and details are not described herein again.

[0071] Thus, through the rotating rotary brush of the cleaning assembly 130, the dirt on the surface to be cleaned can be disturbed, and these dirt can be sucked to a device such as a dust box by means of negative pressure adsorption, and the separation of solid particles can be realized in the device such as the dust box, thereby realizing the cleaning operation of the surface to be cleaned.

[0072] In a preferred embodiment, a cleaning member 160 is further provided on the housing assembly 110; in the present disclosure, the cleaning member 160 is rotatably connected to the housing assembly 110 and is configured to clean the surface to be cleaned. Specifically, the cleaning member 160 can be a cleaning disk that rotates on the surface to be cleaned, or a roller that rolls and rotates relative to the surface to be cleaned, or other forms of cleaning members 160 can also be used.

[0073] As Figure 2 shown, the cleaning member 160 is a cleaning disk, and the cleaning disk includes a cleaning surface made of flannelette; the rotation axis of the cleaning disk is perpendicular to the surface to be cleaned, that is, the cleaning disk is connected to the housing assembly 110 through a rotating shaft perpendicular to the surface to be cleaned. Since the cleaning disk rotates relative to the bottom wall of the housing assembly 110, in order to avoid interference from the bottom wall of the housing assembly 110 to the rotation of the cleaning disk, a certain gap needs to be formed between the cleaning disk and the bottom wall of the housing assembly 110. Further, the distance between the cleaning member 160 of the present disclosure and the bottom wall of the housing assembly 110 can be adjusted; that is to say, the rotating shaft of the present disclosure can be driven to move in the up and down direction, and correspondingly, the cleaning disk can also move in the up and down direction. Thus, by the up and down movement of the cleaning disk, the pressure of the cleaning disk on the surface to be cleaned is adjusted.

[0074] As Figure 2 shown, two cleaning disks are provided in the present disclosure, and these two cleaning disks are respectively arranged on the left and right sides at the rear end of the housing assembly 110. In one embodiment, when these two cleaning disks rotate, they can contact with pressure, so as to realize wet mopping of the surface to be cleaned, thereby realizing wet cleaning of the surface to be cleaned. Correspondingly, during the cleaning process of the surface to be cleaned, in the left and right directions, since there is no gap or the gap is small between the cleaning disks, there will be no area where cleaning is missed.

[0075] Since the cleaning assembly 130 is located in front of the cleaning member 160, the self - moving surface cleaning device of the present disclosure can use the cleaning member 160 to clean the surface to be cleaned after the cleaning assembly 130 has cleaned the surface to be cleaned.

[0076] Thus, when the surface cleaning device 100 of the present disclosure is working, it can self - clean the cleaning member 160 of the surface cleaning device 100 according to its working time; more preferably, this working time can be different according to the degree of dirt on the ground. For example, when the degree of dirt on the ground is large, this working time can be set relatively short; correspondingly, when the degree of dirt on the ground is small, this working time can be set relatively long.

[0077] Meanwhile, when the surface cleaning device 100 finishes the cleaning operation for a predetermined time, it can automatically return and dock at the base station 900, and the base station 900 performs self-cleaning on the cleaning member 160 of the surface cleaning device 100.

[0078] Figure 3 is a schematic structural diagram of a base station according to an embodiment of the present disclosure; Figure 4 is Figure 3 an enlarged schematic view of part A of

[0079] As Figure 3 and Figure 4 shown, the base station 900 of the present disclosure can be used for docking a self-mobile surface cleaning device, and it may include components such as a main body 910, a cleaning tray 920, and a foam spray head 930.

[0080] In the present disclosure, the main body 910 and the cleaning tray 920 together form the housing assembly of the base station 900; in a preferred embodiment, at least part of the main body 910 and at least part of the cleaning tray 920 can be formed as the same part. Correspondingly, the housing assembly of the base station 900 can be assembled by multiple parts.

[0081] More specifically, as Figure 3 shown, the main body 910 is formed as a substantially vertical part of the base station 900, and the cleaning tray 920 is formed as a substantially horizontal part close to the ground. That is to say, when the base station 900 is placed on a substantially horizontal ground, the lower surface of the cleaning tray 920 is arranged substantially parallel to the ground, and at least part of the upper surface of the cleaning tray 920 is arranged inclined relative to the ground, and the cleaning tray 920 is formed with a slope structure to facilitate the self-mobile surface cleaning device to dock at the base station 900 and be located on the cleaning tray 900.

[0082] In a specific embodiment, a positioning groove 924 is formed on the inclined upper surface of the cleaning tray 920, and the positioning groove 924 can receive and hold the traveling wheels 150 of the surface cleaning device 100, so that the surface cleaning device 100 is stably held on the cleaning tray 920.

[0083] At least a part of the upper surface of the cleaning tray 920 is formed as a plane substantially parallel to the ground. Thus, this part forms a protruding structure 921 of the cleaning tray 920. Correspondingly, the protruding structure 921 is arranged close to the main body 910 and forms the highest point of the cleaning tray 920. Thus, when the cleaning tray 920 receives the self - mobile surface cleaning device, the self - mobile surface cleaning device can move backward and dock on the cleaning tray 920. Correspondingly, the cleaning member 160 of the surface cleaning device 100 can cooperate with the protruding structure 921 to achieve self - cleaning of the self - mobile surface cleaning device 100.

[0084] Specifically, a cleaning groove 922 is provided on the protruding structure 921. The cleaning groove 922 can be formed by recessing downward from the upper surface of the protruding structure 921. Among them, the shape of the cleaning groove 922 can be different according to the shape of the cleaning member 160. Specifically, when the cleaning member 160 is formed as a roller, the cleaning groove 922 can be formed as a long - strip groove. When the cleaning member 160 is formed as a cleaning disc, the cleaning groove 922 is formed in a shape that matches the rotational envelope of the outer contour of the cleaning member 160.

[0085] A friction member 923 can be provided on the bottom surface of the cleaning groove 922. The upper end of the friction member 923 is lower than the upper surface of the protruding structure 921, and the upper end of the friction member 923 is formed with tooth - shaped protrusions. Thus, through the contact between the tooth - shaped protrusions and the cleaning member 160, the cleaning of the cleaning member 160 is achieved. More preferably, the tooth - shaped protrusions are arranged along the width direction of the friction member 923, and the tooth - shaped protrusions are arranged in plurality along the length direction of the friction member 923. Thus, the friction member 923 of the present disclosure has a better cleaning effect on the cleaning member 160.

[0086] More preferably, as Figure 2 shown, the friction member 923 is arranged in two groups, and the center of each group of friction members coincides with the rotation center of the cleaning member 160. Of course, the friction member 923 of the present disclosure can also be arranged in other shapes, which will not be elaborated one by one in the present disclosure. Specifically, each group of friction members can include three friction members 923.

[0087] In the present disclosure, the foam nozzle 930 is configured to output cleaning foam towards the protruding structure 921. Thus, the cleaning member 160 of the surface cleaning device 100 can be cleaned by the cleaning foam, so that the cleaning member 160 is cleaned more thoroughly.

[0088] Figure 5 is a partial structural schematic diagram of a base station according to an embodiment of the present disclosure.

[0089] As Figure 5As shown, an accommodation cavity is formed inside the main body portion 910 of the base station 900 of the present disclosure; a supply tank 940, a recovery tank 950, and a foaming assembly 960 can be arranged inside the accommodation cavity; among them, the supply tank 940 is formed in the shape of a box and is used for storing a cleaning liquid. More preferably, the cleaning liquid can be water.

[0090] The recovery tank 950 can also be formed in the shape of a box and is used for storing the recovered sewage; or the recovery tank 950 can also be used for storing the solid waste recovered from the surface cleaning device. In one embodiment, the sewage can be the sewage generated after self-cleaning the cleaning portion of the mobile cleaning robot. Of course, the sewage can also be other sewage, such as the sewage generated when the mobile cleaning robot cleans the surface to be cleaned, etc.

[0091] Referring again to Figure 5 , one or more foaming assemblies 960 of the present disclosure include at least one foaming agent accommodation box 961 for accommodating a foaming agent; moreover, the foaming assembly 960 can also include a foam generator 962, which can receive the foaming agent stored in the foaming agent accommodation box 961 and generate foam; on the other hand, the foam generator 962 can also receive the mixture of the foaming agent stored in the foaming agent accommodation box 961 and the cleaning liquid and generate foam; in the present disclosure, after the foam generator 962 generates foam, the foam can be stored in the cleaning foam accommodation portion 963.

[0092] At least one foaming agent accommodation box 961 is replaceably arranged inside the main body portion 910; more preferably, the foaming agent accommodation box 961 can be located at a position between the supply tank 940 and the recovery tank 950, and the main body portion 910 can include a cover body. When the cover body is removed, the foaming agent accommodation box 961 can be taken out, thus facilitating the replacement of the foaming agent accommodation box 961.

[0093] In the present disclosure, the cleaning foam accommodation portion 963 is located inside the base station 900, and the cleaning foam accommodation portion 963 is connected to the foam nozzle 930 through a cleaning foam transmission system 964; correspondingly, when the foam is provided to the foam nozzle 930, it can be ejected outward through the foam nozzle 930.

[0094] As Figure 4 shown, the foam nozzle 930 of the present disclosure is configured to output cleaning foam toward the protruding structure 921; moreover, the foam nozzle 930 is configured to maintain a predetermined distance from the cleaning member 160 of the surface cleaning device 100 when the surface cleaning device 100 is located at the base station 900; thus, when the cleaning member 160 of the surface cleaning device 100 rotates, the foam nozzle 930 will not be damaged.

[0095] Based on the above structure, when the surface cleaning device 100 docks with the base station 900 during use, at least part of the cleaning member 160 of the surface cleaning device 100 can be located within the cleaning tank 922. Then, the cleaning liquid in the supply tank 940 can be provided to the cleaning tank 922, and foam is also provided to the cleaning tank 922 through the foam nozzle 930. Next, the cleaning member 160 is controlled to rotate. At this time, at least part of the cleaning member 160 is submerged in the cleaning liquid, and the foam is also dispersed and dissolved by the cleaning liquid. When the cleaning member 160 rotates, the dirt on the cleaning member 160 is removed by the pressured contact between the cleaning member 160 and the friction member 923, thereby realizing the self-cleaning of the cleaning member 160.

[0096] Figure 6 It is a schematic structural diagram of a foaming assembly according to an embodiment of the present disclosure.

[0097] In the present disclosure, as Figure 6 shown, one or more foaming assemblies 960 are provided within the main body portion 910, and one or more foaming assemblies 960 are configured to supply cleaning foam to the foam nozzle 930. Specifically, the foaming agent storage box 961, the foam generator 962, the cleaning foam storage portion 963, the cleaning foam transmission system 964, etc. of the foaming assembly 960 are all provided inside the main body portion 910. Thus, various connecting pipelines of the foaming assembly 960 of the base station 900 of the present disclosure are all located inside the main body portion 910, making the wiring of the base station 900 reasonable and more aesthetically pleasing.

[0098] In a preferred embodiment, the cleaning foam transmission system 964 includes a first control element. More preferably, the first control element is a peristaltic pump. Thus, through the setting of the peristaltic pump, on the one hand, it can control the opening and closing of the foam flow pipeline, and on the other hand, it can also pressurize the foam and provide it to the foam nozzle 930.

[0099] The following will describe in detail the features such as the shape and position of the foam nozzle 930 of the present disclosure with reference to the accompanying drawings.

[0100] As Figure 3 shown, in the present disclosure, the main body portion 910 is connected to the cleaning tray 920, and at least part of the main body portion 910 is higher than the cleaning tray 920. More preferably, at least part of the main body portion 910 extends to the upper end of the protruding structure 921 of the cleaning tray 920, and there is a preset distance between this part of the main body portion 910 and the protruding structure 921 of the cleaning tray 920. This preset distance is greater than the thickness of the self-propelled surface cleaning device, and thus a storage cavity is formed between the main body portion 910 and the cleaning tray 920. Thus, when the self-propelled surface cleaning device docks with the base station, at least part of it is located within the storage cavity between this part of the main body portion 910 and the protruding structure 921 of the cleaning tray 920.

[0101] Specifically, the receiving cavity includes a rear wall, and the rear wall of the receiving cavity is at least part of the front wall of the main body 910. That is to say, the rear part of the receiving cavity is defined by the front wall of the main body 910, and the foam nozzle 930 is located on the rear wall. More preferably, the foam nozzle 930 is located at the middle position of the rear wall, so that the cleaning foam can be provided to the two cleaning members 160 simultaneously through the foam nozzle 930.

[0102] As Figure 4 shown, structurally, the foam nozzle 930 includes a first main body 931 and a second main body 932 which are connected to each other; wherein, the first main body 931 and the second main body 932 can be integrally formed or separately formed, and are installed or fixed together.

[0103] The first main body 931 is formed as a hemispherical thin-walled part, so that the inside of the first main body 931 forms a hemispherical buffer cavity, that is, the outer surface of the first main body 931 is a hemispherical surface, and correspondingly, the inner surface of the first main body 931 is a hemispherical surface, thereby making the first main body 931 have a generally uniform wall thickness as a whole.

[0104] At least part of the second main body 932 is formed in a cylindrical shape. For example, the end of the second main body 932 connected to the first main body 931 is formed in a generally cylindrical shape. In the present disclosure, preferably, the outer diameter (diameter) of the cylindrical part of the second main body 932 is the same as the diameter of the outer surface of the first main body 931.

[0105] The second main body 932 includes a conveying channel for conveying the cleaning foam, and the conveying channel communicates with the hemispherical buffer cavity; the conveying channel is formed in a cylindrical shape, and the inner diameter (diameter) of the conveying channel is the same as the diameter of the inner surface of the first main body 931, so that the cleaning foam has as small a resistance as possible during the conveying process.

[0106] The foam nozzle 930 further includes a cut 933, and the cleaning foam is supplied to the surface to be cleaned through the cut 933; in a specific embodiment, the cut 933 is arranged to horizontally penetrate the first main body 931 and communicate with the hemispherical buffer cavity, so that after the cleaning foam detaches from the cut 933, a fan-shaped radiation surface is formed. Thus, the foam ejected by the foam nozzle 930 of the present disclosure can be distributed in a fan shape.

[0107] That is to say, when processing the cut 933 of the first main body 931, it is only necessary to cut a groove with a certain width and a certain depth from the vertex of the first main body 931 towards the center of the sphere. When the foam nozzle 930 is installed on the main body 910, it is only necessary to keep the cut 933 arranged in the horizontal direction or approximately in the horizontal direction.

[0108] The conveying channel includes a circular channel outlet, and the projection center of the incision 933 at the circular channel outlet passes through the center of the circle of the circular channel outlet, so that the incision 933 is centrally arranged on the first main body 931 and the second main body 932.

[0109] When the self - propelled surface cleaning device docks at the base station 900, the foam trajectory ejected by the foam nozzle 930 is substantially lower than the bottom surface of the cleaning member 160; that is to say, the foam nozzle 930 of the present disclosure can provide foam not directly to the cleaning member 160, but only to the cleaning tank 922.

[0110] More preferably, when the self - propelled surface cleaning device docks at the base station 900, the foam trajectory ejected by the foam nozzle 930 is substantially towards the space between the bottom surface of the cleaning member 160 and the protruding structure 921.

[0111] In a preferred embodiment, the incision 933 of the foam nozzle 930 can be higher than the upper surface of the protruding structure 921. At this time, the axis of the foam nozzle 930 can be inclined and foam is sprayed downward; in another preferred embodiment, the nozzle axis of the foam nozzle 930 is lower than the upper surface of the protruding structure 921 and higher than the bottom surface of the cleaning tank 922. Thus, foam can be directly provided to the cleaning tank 922 through the foam nozzle 930.

[0112] When the surface cleaning system of the present disclosure is in use, after the self - propelled surface cleaning device completes self - cleaning, the sewage in the cleaning tank 922 can be sucked into the recovery tank 950. Moreover, the base station 900 of the present disclosure can also be equipped with a drying device. When the surface cleaning device 100 completes the cleaning operation of all surfaces to be cleaned, the cleaning member 160 of the surface cleaning device 100 can be dried by the hot air provided by this drying device, thereby effectively preventing the cleaning member 160 from generating peculiar smell and affecting the user experience.

[0113] In the description of this specification, the description with reference to terms such as "an embodiment / way", "some embodiments / ways", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of the present application. In this specification, the schematic expressions of the above - mentioned terms do not necessarily refer to the same embodiment / way or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments / ways or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments / ways or examples described in this specification and the features of different embodiments / ways or examples.

[0114] In addition, 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0115] Those skilled in the art should understand that the above-described embodiments are merely for clearly illustrating the present disclosure and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications can be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A base station for docking a self-propelled surface cleaning device, characterized in that: include: a cleaning tray having a protruding structure configured to at least partially interfere with a cleaning member of the self-propelled surface cleaning device when the self-propelled surface cleaning device is docked at the base station; a foam spray head configured to output cleaning foam toward the protruding structure and configured to maintain a predetermined distance from a cleaning member of the surface cleaning device when the surface cleaning device is located at the base station; as well as A cleaning foam containing part is located in the base station and is connected to the foam nozzle through a cleaning foam transmission system.

2. The base station according to claim 1, characterized in that The cleaning foam delivery system includes a first control element.

3. The base station according to claim 2, characterized in that The first control element is a peristaltic pump.

4. The base station according to claim 3, characterized in that The foam sprayed by the foam spray head is distributed in a fan shape.

5. The base station according to claim 1, characterized in that When the self-movable surface cleaning device is parked at the base station, the trajectory of the foam sprayed by the foam nozzle is substantially lower than the bottom surface of the cleaning member.

6. The base station according to claim 1, characterized in that When the self-movable surface cleaning device is docked at the base station, the trajectory of the foam sprayed by the foam nozzle is substantially directed toward between the bottom surface of the cleaning member and the protruding structure.

7. The base station according to claim 1, characterized in that The upper surface of the protruding structure comprises a cleaning groove, and the nozzle axis of the foam nozzle is lower than the upper surface of the protruding structure and higher than the bottom surface of the cleaning groove.

8. The base station according to claim 1, characterized in that The base station includes a storage cavity for accommodating at least a portion of the self-propelled surface cleaning device, the storage cavity includes a rear wall, and the foam spray head is located on the rear wall.

9. The base station according to claim 8, characterized in that The foam spray head is located in the middle of the rear wall.

10. A surface cleaning system, characterized in that: It comprises a self-moving surface cleaning device and a base station according to any one of claims 1-9.

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