Automatic air duct switching device and base station

Abstract

The present disclosure provides a device for automatically switching air ducts. When applied to a base station, the device can provide positive or negative pressure to the recovery storage unit of the base station. The device comprises: a suction device and an air duct switching unit; wherein the air duct switching unit is driven to be positioned in a first position and a second position. When the air duct switching unit is in the first position, the air inlet of the suction device communicates with at least one of the second-type interfaces, the remaining second-type interfaces communicate with the gas pipeline of the recovery storage unit, and the exhaust port of the air duct switching unit communicates with the first-type interface. When the air duct switching unit is in the second position, the air inlet of the suction device communicates with the first-type interface of the air duct switching unit, the exhaust port of the suction device communicates with at least one of the second-type interfaces of the air duct switching unit, and the remaining second-type interfaces communicate with the gas pipeline of the recovery storage unit. The present disclosure also provides a base station.

Description

Technical Field

[0001] The present disclosure relates to a device and a base station for automatically switching air ducts. Background Art

[0002] Today's cleaning base stations generally have a sewage storage function, which is used to store the sewage generated by the host during operation in the base station sewage tank, and then the sewage is poured out manually by the user.

[0003] In the prior art, when transferring wastewater from surface cleaning equipment to a base station, a suction device is generally used to generate negative pressure in the wastewater tank, thereby sucking the wastewater into the tank; then an air pump or other means is used to generate positive pressure in the wastewater bucket to ensure that the wastewater in the bucket is discharged.

[0004] However, this structure in the prior art requires two systems, namely a suction device and an air pump, to respectively realize the water absorption and drainage functions of the sewage bucket, resulting in a complex base station structure, a large volume, and high cost. Summary of the Invention

[0005] In order to solve one of the above technical problems, the present disclosure provides a device and a base station for automatically switching air ducts.

[0006] According to one aspect of the present disclosure, a device for automatically switching air ducts is provided. When the device is applied to a base station, it can provide positive pressure or negative pressure to a recycling storage unit of the base station, and the device includes:

[0007] a suction device having an air inlet and an air outlet and enabling gas to flow within the suction device from the air inlet to the air outlet; and

[0008] An air duct switching unit, the air duct switching unit including a first type interface and a second type interface, wherein the first type interface is connected to the external air duct, the number of the second type interfaces is at least two, and the second type interfaces are interconnected;

[0009] In which, the air duct switching part is driven to be able to be located in a first position and a second position. When the air duct switching part is located in the first position, the air inlet of the suction device is connected to at least one of the second type interfaces, the remaining second type interfaces are connected to the gas pipeline of the recovery storage part, and the exhaust port of the air duct switching part is connected to the first type interface. When the air duct switching part is located in the second position, the air inlet of the suction device is connected to the first type interface of the air duct switching part, the exhaust port of the suction device is connected to at least one of the second type interfaces of the air duct switching part, and the remaining second type interfaces are connected to the gas pipeline of the recovery storage part.

[0010] According to the device for automatically switching air ducts of at least one embodiment of the present disclosure, the number of the first type interface is at least one.

[0011] According to the device for automatically switching air ducts of at least one embodiment of the present disclosure, some of the second-type interfaces are connected to the suction device, and the remaining second-type interfaces are connected to the gas pipeline.

[0012] According to the device for automatically switching air ducts of at least one embodiment of the present disclosure, the number of the second type interfaces is two, the number of the first type interface is one, and the first type interfaces and the second type interfaces are evenly distributed along the circumference of the air duct switching portion.

[0013] According to the device for automatically switching an air duct of at least one embodiment of the present disclosure, the air duct switching portion is driven to rotate so as to move between a first position and a second position.

[0014] According to at least one embodiment of the present disclosure, the device for automatically switching air ducts further includes:

[0015] A first driving device is used to drive the air duct switching part to rotate.

[0016] According to the device for automatically switching an air duct of at least one embodiment of the present disclosure, the air duct switching portion is driven so as to be movable along a direction of a rotation axis of the air duct switching portion.

[0017] According to at least one embodiment of the present disclosure, the device for automatically switching air ducts further includes:

[0018] A linear drive structure is used to drive the air duct switching part to move along the direction of the rotation axis.

[0019] According to at least one embodiment of the present disclosure, the device for automatically switching air ducts further includes:

[0020] A shell portion is formed with an accommodating space for accommodating the first drive device, the first drive device is arranged in the accommodating space of the shell portion, and at least a portion of the first drive device is located outside the shell portion so that the first drive device is connected to the air duct switching portion.

[0021] According to the device for automatically switching an air duct of at least one embodiment of the present disclosure, the lower portion of the housing portion is formed as a part of the linear drive structure.

[0022] According to the device for automatically converting air ducts of at least one embodiment of the present disclosure, the linear drive structure includes: a second drive device and a gear driven to rotate by the second drive device; a rack is formed at the lower part of the shell part, and the shell part is driven to move along the rotation axis through the engagement of the gear and the rack.

[0023] According to at least one embodiment of the present disclosure, the device for automatically switching air ducts further includes:

[0024] The bracket portion, the second driving device is arranged on the bracket portion, and the bracket portion is also used to provide guidance for the movement of the shell portion.

[0025] According to the device for automatically converting air ducts of at least one embodiment of the present disclosure, a seal is provided at one end of the first type interface connected to the suction device, and / or one end of the second type interface connected to the suction device or the gas pipeline, so that the suction device and the gas pipeline are sealedly connected to the first type interface and / or the second type interface.

[0026] According to at least one embodiment of the present disclosure, the device for automatically switching air ducts includes:

[0027] A lower cover body is formed with an air inlet and an air outlet, and the air inlet and the air outlet are connected in the lower cover body;

[0028] an upper cover body, the upper cover body being disposed on the lower cover body and forming a communication path between the air inlet and the air outlet; and

[0029] The suction portion is provided in the communication path so as to allow gas to flow from the air inlet to the air outlet when the suction portion is in operation.

[0030] According to another aspect of the present disclosure, a base station is provided, which includes the above-mentioned device for automatically switching air ducts.

[0031] The base station according to at least one embodiment of the present disclosure further includes a recovery storage unit, wherein the gas pipeline of the device for automatically switching the air duct is connected to the air outlet of the recovery storage unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] 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.

[0033] Figure 1 It is a structural schematic diagram of a device for automatically switching air ducts according to an embodiment of the present disclosure.

[0034] Figure 2 It is a structural schematic diagram of an air duct switching unit according to an embodiment of the present disclosure.

[0035] Figure 3 2 is a schematic structural diagram of a bracket portion according to an embodiment of the present disclosure.

[0036] Figure 4 2 is a schematic cross-sectional view of a first type interface and a second type interface according to an embodiment of the present disclosure.

[0037] Figure 5 2 is a schematic structural diagram of a first drive device and a second drive device according to an embodiment of the present disclosure.

[0038] Figure 6 It is a structural diagram of a base station according to an embodiment of the present disclosure.

[0039] Figure 7 It is a partial structural diagram of a base station according to one embodiment of the present disclosure.

[0040] Figure 8 yes Figure 7 sectional view of .

[0041] Figure 9 yes Figure 7 Schematic diagram from another angle.

[0042] Figure 10 It is a partial structural schematic diagram of a box body according to one embodiment of the present disclosure.

[0043] Figure 11 yes Figure 10 Schematic diagram from another angle.

[0044] Figure 12 It is a schematic cross-sectional view of a portion of the box body according to one embodiment of the present disclosure.

[0045] Figure 13 It is a schematic diagram of the three-dimensional structure of the box body according to one embodiment of the present disclosure.

[0046] Figure 14 It is a schematic diagram of the top structure of the box body according to one embodiment of the present disclosure.

[0047] Figure 15 It is a schematic structural diagram of a cover body according to one embodiment of the present disclosure.

[0048] The specific reference numerals in the figure are:

[0049] 10 base stations

[0050] 200 Automatic air duct switching device

[0051] 210 suction device

[0052] 211 lower cover

[0053] 212 upper cover body

[0054] 213 Suction Department

[0055] 220 air duct switching unit

[0056] 221 Type 1 interface

[0057] 222 Second type interface

[0058] 230 bracket department

[0059] 240 first drive device

[0060] 250 housing

[0061] 260 linear drive structure

[0062] 261 Second drive device

[0063] 262 gears

[0064] 270 gas pipeline

[0065] 700 Recycling Storage Department

[0066] 710 cabinet

[0067] 720 First Valve

[0068] 730 second valve

[0069] 740 drainage channel

[0070] 750 sewage pipe

[0071] 760 hood

[0072] 761 Shielding

[0073] 770 filter assembly

[0074] 780 gas channels. DETAILED DESCRIPTION

[0075] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the relevant content and are not intended to limit the present disclosure. It should also be noted that, for ease of description, only the portions relevant to the present disclosure are shown in the accompanying drawings.

[0076] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0077] Unless otherwise stated, the exemplary embodiments / examples shown are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of the various embodiments / examples may be further combined, separated, interchanged, and / or rearranged without departing from the technical concepts of the present disclosure.

[0078] The use of cross hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise indicated, the presence or absence of cross hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the order described. In addition, the same figure numbers represent the same components.

[0079] When a component is referred to as being “on,” “over,” “connected to,” or “coupled to” another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being “directly on,” “directly connected to,” or “directly coupled to” another component, there are no intervening components present. For this purpose, the term “connected” may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0080] For descriptive purposes, the present disclosure may use spatially relative terms such as "below," "beneath," "under," "down," "above," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the drawings is turned over, a component described as "below" or "beneath" another component or feature would then be positioned "above" the other component or feature. Thus, the exemplary term "below" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and as such, the spatially relative descriptors used herein should be interpreted accordingly.

[0081] The terms used herein are for the purpose of describing specific embodiments and are not intended to be restrictive. As used herein, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, the features, integral bodies, steps, operations, parts, assemblies and / or their groups stated are explained, but the presence or addition of one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups is not excluded. It should also be noted that, as used herein, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0082] Figure 1 2 is a schematic structural diagram of an automatic air duct switching device 200 according to an embodiment of the present disclosure.

[0083] like Figure 1 As shown, the present disclosure provides an automatic air duct switching device 200 , which may include a suction device 210 , wherein the suction device 210 has an air inlet and an air outlet, and enables gas to flow from the air inlet to the air outlet in the suction device 210 .

[0084] The suction device 210 disclosed herein can be implemented by a negative pressure generator. Preferably, the air inlet and the exhaust port can also be located in the same plane to facilitate the coordination between the suction device 210 and the air duct switching unit 220. Of course, the air inlet and the exhaust port of the suction device 210 may not be located in the same plane.

[0085] As a preference, the suction device 210 of the present disclosure may include: a lower cover 211, an upper cover 212 and a suction part 213 and other components.

[0086] The lower cover 211 is formed with an air inlet and an air outlet. For example, the air inlet and the air outlet can be formed on the lower surface of the lower cover 211 , and the air inlet and the air outlet are communicated with each other in the lower cover 211 .

[0087] The upper cover 212 is disposed on the lower cover 211 , and a communication path between the upper cover 212 and the lower cover 211 is formed as an air inlet and an air outlet.

[0088] The suction part 213 is arranged in the communication path so that when the suction part 213 is working, the gas flows from the air inlet to the exhaust port; in the present disclosure, the suction part 213 may include components such as a motor and an impeller, wherein the motor may be a brushless motor, etc., which will not be described in detail here.

[0089] In the present disclosure, a shock-absorbing sealing pad can be arranged between the suction part 213 and the lower cover body 211 to minimize the vibration caused by the suction part 213 when it is working; similarly, a shock-absorbing sealing pad can also be arranged between the suction part 213 and the upper cover body 212. Therefore, on the one hand, the vibration caused by the suction part 213 when it is working can be reduced, and on the other hand, the suction part 213 can be stably maintained between the lower cover body 211 and the upper cover body 212.

[0090] Figure 2 It is a structural schematic diagram of an air duct switching unit according to an embodiment of the present disclosure.

[0091] like Figure 2 As shown, the device 200 for automatically converting air ducts disclosed in the present invention may also include an air duct switching unit 220, wherein the air duct switching unit 220 includes a first type interface 221 and a second type interface 222, wherein the first type interface 221 is connected to the external air duct, the number of the second type interfaces 222 is at least two, and the second type interfaces 222 are connected to each other.

[0092] Structurally, the air duct switching portion 220 is circular to facilitate its rotation and to facilitate its engagement with the suction device 210 at different locations. Alternatively, the air duct switching portion 220 may be elongated, in which case the first-type interface 221 may be located in the middle of the air duct switching portion 220, with the two second-type interfaces 222 located on either side of the first-type interface 221.

[0093] In the present disclosure, the first-type interface 221 is a structure that extends through the air duct switching portion 220, and the upper end of the first-type interface 221 can communicate with the suction device 210, while the lower end of the first-type interface 221 can be connected to an external air duct. Alternatively, the sidewall of the air duct switching portion 220 may be formed with an opening, allowing the first-type interface 221 to connect to the external air duct through the opening. In this case, the upper end of the first-type interface 221 can communicate with the suction device 210.

[0094] In the present disclosure, the number of the first type interface 221 may be at least one. When the number of the first type interface 221 is multiple, these first type interfaces 221 may not be interconnected, but may be interconnected.

[0095] The number of the second type interfaces 222 can be at least two. In the present disclosure, the second type interfaces 222 can be formed as blind holes, and a connecting channel connecting the blind holes is formed inside the air duct switching portion 220, so that the second type interfaces 222 can communicate with each other.

[0096] In the present disclosure, two second-type interfaces 222 may be provided. In this case, when there is only one first-type interface 221, three air duct openings (i.e., one first-type interface 221 and two second-type interfaces 222) are evenly distributed along the circumference of the air duct switching unit 220. In other words, the centers of the three air duct openings, i.e., the first-type interface 221 and the second-type interface 222, are all located on a circle with the rotation axis of the air duct switching unit 220 as the center, and are evenly distributed along the circumference of the circle, thereby making it easier to control the air duct switching unit 220.

[0097] Of course, the first type interface 221 and the second type interface 222 may also be unevenly distributed, as long as the distance between one of the first type interface 221 and the second type interface 222 is the same as the distance between the other of the first type interface 221 and the second type interface 222 .

[0098] The air duct switching part 220 is driven to be able to be located in a first position and a second position. When the air duct switching part 220 is in the first position, the air inlet of the suction device 210 is communicated with at least one of the second type interfaces 222, the other of the second type interfaces 222 is communicated with the gas pipeline 270, and the exhaust port of the air duct switching part 220 is communicated with the first type interface 221. When the air duct switching part 220 is in the second position, the air inlet of the suction device 210 is communicated with the first type interface 221 of the air duct switching part 220, the exhaust port of the suction device 210 is communicated with at least one of the second type interfaces 222 of the air duct switching part 220, and the other of the second type interfaces 222 is communicated with the gas pipeline 270. In this way, the conversion of air intake and exhaust can be achieved through one suction device 210. Furthermore, when the device for automatically converting the air duct is connected to the recovery storage part, negative pressure can be provided to the recovery storage part, and positive pressure can also be provided to the recovery storage part. When negative pressure is applied to the recovery storage part, the recovery storage part can suck the sewage from the surface cleaning device. When positive pressure is applied to the recovery storage part, the sewage stored in the recovery storage part can be discharged to the outside of the recovery storage part.

[0099] Some of the second type interfaces 222 are connected to the suction device 210, and the remaining second type interfaces 222 are connected to the gas pipeline 270, which can be connected to the recovery storage part and apply positive pressure or negative pressure to the recovery storage part through the gas pipeline 270.

[0100] That is to say, when the air duct switching part 220 is in the first position, it can apply negative pressure to the recovery storage part, that is, extract gas from the recovery storage part; when the air duct switching device 220 is in the second position, it can provide positive pressure to the recovery storage part, that is, provide gas with a pressure greater than atmospheric pressure to the recovery storage part.

[0101] As a preferred embodiment, the air duct switching part 220 is driven to rotate so that the air duct switching part 220 moves between the first position and the second position; on the other hand, the air duct switching part 220 can also be driven to move, for example, along the length direction of the air duct switching part 220, so that the air duct switching part 220 moves between the first position and the second position.

[0102] Figure 3 2 is a schematic structural diagram of a bracket portion according to an embodiment of the present disclosure. Figure 4 2 is a schematic cross-sectional view of a first type interface and a second type interface according to an embodiment of the present disclosure.

[0103] As a preferred option, Figure 3 and Figure 4As shown, the automatic air duct switching device 200 may further include a bracket portion 230 , which is capable of supporting the suction device 210 , and the bracket portion 230 forms a part of the outer surface of the automatic air duct switching device.

[0104] In the present disclosure, a accommodating space is formed inside the bracket portion 230, and the air duct switching portion 220 is located in the accommodating space; the top of the bracket portion 230 is formed into an opening shape, and at least part of the suction device 210 passes through the opening of the bracket portion 230 and is located in the accommodating space of the bracket portion 230.

[0105] For example, the upper end of the lower cover 211 of the suction device 210 is supported by the bracket portion 230, and the lower end of the lower cover 211 is located in the accommodation space of the bracket portion 230. More preferably, the periphery of the lower cover 211 can be in sealing contact with the inner wall surface of the accommodation space of the bracket portion 230.

[0106] Figure 5 2 is a schematic structural diagram of a first drive device and a second drive device according to an embodiment of the present disclosure.

[0107] The air duct switching unit 220 can be driven to rotate by the first driving device 240. Figure 5 As shown, the first drive device 240 can be a micro motor, such as a stepper motor, a steering gear, or a servo motor. The first drive device 240 includes a rotatable drive shaft. The air duct switching unit 220 can be directly fixed to the drive shaft of the first drive device 240, or the air duct switching unit 220 can be fixed to the drive shaft of the first drive device 240 via a steering wheel. In this case, the air duct switching unit 220 can be fixed to the steering wheel, and the steering wheel is fixed to the drive shaft of the first drive device 240.

[0108] In the present disclosure, the rotation axis of the air duct switching part 220 is the same as the rotation axis of the driving shaft of the first driving device 240, that is, when the first driving device 240 drives the air duct switching part 220 to rotate, the air duct switching part 220 will not produce eccentric movement.

[0109] The first drive device 240 can be arranged in the shell part 250. At this time, the shell part 250 forms an accommodating space for accommodating the first drive device 240. The first drive device 240 is arranged in the accommodating space of the shell part 250, and at least part of the first drive device 240 is located outside the shell part 250. For example, the upper end of the drive shaft of the first drive device 240 is located outside the shell part 250, so that the first drive device 240 is connected to the air duct switching part 220.

[0110] The bracket portion 230 is used to provide guidance for the movement of the shell portion 250. For example, two relatively parallel planes are formed inside the bracket portion 230, and the shell portion 250 is arranged between the two relatively parallel planes. When the shell portion 250 moves, it is guided by the planes.

[0111] In the present disclosure, the housing portion 250 can move in a vertical direction, that is, the linear drive structure 260 can drive the housing portion 250 to generate a lifting motion.

[0112] Correspondingly, when the shell part 250 generates a lifting movement, the air duct switching part 220 can also generate a lifting movement. At this time, the rotation axis of the air duct switching part 220 is vertically set, and accordingly, the air duct switching part 220 can move along the rotation axis of the air duct switching part 220.

[0113] As an implementation form, the lower portion of the housing portion 250 is formed as a part of the linear drive structure 260 . For example, the lower end of the housing portion 250 may be formed as a rack extending in a vertical direction.

[0114] The linear drive structure 260 may further include a second drive device 261 and a gear 262 driven to rotate by the second drive device 261; and the housing portion 250 is driven to move along the direction of the rotation axis through the engagement of the gear 262 and the rack.

[0115] The second driving device 261 is provided on the bracket portion 230 and may be located inside the bracket portion 230. In the present disclosure, the second driving device 261 may be a micro motor, such as a stepping motor, a steering gear, or a servo motor.

[0116] In the present disclosure, a seal is provided at one end of the first type interface 221 connected to the suction device 210, and / or one end of the second type interface 222 connected to the suction device 210 or the gas pipeline, so that the suction device 210 and the gas pipeline are sealedly connected to the first type interface 221 and / or the second type interface 222.

[0117] Figure 6 It is a structural diagram of a base station according to an embodiment of the present disclosure. Figure 7 It is a partial structural diagram of a base station according to one embodiment of the present disclosure. Figure 8 yes Figure 7 sectional view of . Figure 9 yes Figure 7 Schematic diagram from another angle.

[0118] According to another aspect of the present disclosure, Figures 6 to 9 As shown, the present disclosure provides a base station 10, which includes the above-mentioned device 200 for automatically switching air ducts.

[0119] When the recovery and storage part of the present invention absorbs the sewage from the surface cleaning equipment, the gas pipe 270 of the automatic air duct conversion device 200 is connected to the air outlet of the recovery and storage part (that is, connected to the lower end of the gas channel 780 of the recovery and storage part 700), and the air duct switching part 220 is controlled to be in the first position. At this time, the suction device 210 can extract gas from the recovery and storage part, thereby realizing the extraction of sewage from the surface cleaning equipment.

[0120] On the other hand, when the sewage in the recovery storage part is discharged, the air duct switching part 220 is controlled to be in the second position. At this time, the suction device 210 can extract gas from the outside and apply the pressurized gas to the recovery storage part, thereby pressing the sewage out of the recovery storage part through the high pressure of the gas in the recovery storage part.

[0121] In the present disclosure, when the air duct switching part 220 moves between the first position and the second position, the air duct switching part 220 can be first lowered a certain distance, and then the air duct switching part 220 can be driven to rotate, and then the air duct switching part 220 can be controlled to rise a certain distance, thereby conveniently controlling the air duct switching part 220.

[0122] Therefore, the present disclosure can generate both positive pressure and negative pressure through an automatic air duct conversion device 200, thereby realizing the absorption of sewage from the surface cleaning equipment and the discharge of sewage from the recovery storage part, thereby simplifying the structure of the base station 10 of the present disclosure, reducing the volume of the base station 10, and reducing the cost of the base station 10.

[0123] Figure 10 It is a partial structural schematic diagram of a box body according to one embodiment of the present disclosure. Figure 11 yes Figure 10 Schematic diagram from another angle. Figure 12 It is a schematic cross-sectional view of a portion of the box body according to one embodiment of the present disclosure.

[0124] As a preferred option, Figures 10 to 12 As shown, the recovery storage part 700 includes: a box body 710, and a storage space for accommodating liquid is formed inside the box body 710, so that when the recovery storage part 700 is installed on the base station, the solid-liquid mixture in the sewage tank of the surface cleaning equipment can be sucked into the recovery storage part 700 of the base station, and the recovery storage part 700 can be connected to the sewer to discharge the solid-liquid mixture into the sewer.

[0125] The housing 710 is formed with a liquid inlet and a liquid outlet, so that the solid-liquid mixture can enter the housing 710 through the liquid inlet and be discharged from the housing 710 through the liquid outlet. That is, when the base station is in different working states, the housing 710 is also in different states. For example, when the base station is sucking the solid-liquid mixture in the surface cleaning device, the device 200 for automatically switching the air duct can apply negative pressure to the housing 710, so that the solid-liquid mixture is sucked and stored in the storage space of the housing 710; when the base station is discharging the solid-liquid mixture, the device 200 for automatically switching the air duct can apply positive pressure to the housing 710, that is, continuously supply gas to the housing 710, so that the solid-liquid mixture in the housing 710 is discharged to the outside of the housing 710 through the liquid outlet.

[0126] On the other hand, the box body 710 has an open top, so that negative pressure or positive pressure can be applied to the box body 710 through the open top.

[0127] As a preferred implementation form, the liquid inlet and the liquid drain of the box body 710 are both located on the side wall of the box body 710, and the liquid inlet and the liquid drain can be located in the upper middle part of the side wall of the box body 710 to prevent sewage from leaking through the liquid inlet and the liquid drain.

[0128] Of course, the liquid discharge port can also be located at the bottom of the housing 710, and the second valve 730 can be an on-off valve such as a solenoid valve. Furthermore, the liquid inlet can also be located at the bottom of the housing 710, and accordingly, the first valve 720 can also be an on-off valve such as a solenoid valve. Of course, in the present disclosure, the location of the liquid inlet and liquid discharge port in the upper middle portion of the side wall of the housing 710 is a preferred embodiment of the present disclosure.

[0129] The recycling storage unit 700 may include a first valve 720, which is configured to selectively open or close the liquid inlet of the housing 710. Specifically, the first valve 720 includes a cover portion, which closes the liquid inlet when the cover portion is in a first position and opens the liquid inlet when the cover portion is in a second position.

[0130] As one implementation form, the cover plate portion is moved from the first position to the second position, or from the second position to the first position, by rotating the cover plate portion; as another implementation form, the cover plate portion is moved from the first position to the second position, or from the second position to the first position, and at this time, the cover plate portion can be driven to move by a linear drive structure.

[0131] When the cover portion is able to rotate, when negative pressure is applied to the box body portion 710, the cover portion is driven to move from the first position to the second position; when the negative pressure is stopped from being applied to the box body portion 710, or when positive pressure is applied to the box body portion 710, the cover portion moves from the second position to the first position.

[0132] Specifically, when negative pressure is applied to the box body 710, the cover part is driven to move from the first position to the second position; when the negative pressure is stopped from being applied to the box body 710, or when positive pressure is applied to the box body 710, the cover part moves from the second position to the first position.

[0133] In the present disclosure, the cover plate portion can be moved from the second position to the first position by the gravity of the cover plate portion. At this time, the first valve 720 can be in a normally closed state, that is, when the base station is not in working state, the first valve 720 can close the liquid inlet.

[0134] Structurally, the cover is located inside the box 710, and the upper end of the cover is hinged to the box 710 to allow the cover to swing. Furthermore, the cover is located in a horizontal plane relative to the hinge axis of the box 710.

[0135] Of course, the upper end of the cover portion may also be hinged to the cover body 760 , for example, hinged to the shielding portion 761 of the cover body 760 , and the cover portion may be able to swing.

[0136] In the present disclosure, the box body 710 includes an inclined wall portion, which is inclined toward the interior of the box body 710 from top to bottom, wherein the liquid inlet is formed on the inclined wall portion; accordingly, the box body 710 is also connected to a liquid inlet pipe, which is located outside the box body 710, and the connection between the liquid inlet pipe and the liquid inlet is also inclined, so that the recovery storage part can be conveniently installed on the base station; in the present disclosure, the box body 710 and the liquid inlet pipe bracket can be provided with a sealing device, which will not be described in detail here.

[0137] In the present disclosure, when the cover portion is located in the first position, the cover portion is in contact with the inner surface of the inclined wall portion; so that the cover portion is in sealing contact with the box body portion 710 and can seal the liquid inlet; accordingly, when the cover portion is located in the second position, the cover portion maintains a preset interval with the inner surface of the inclined wall portion, and a gap is present between the cover portion and the inclined wall portion, so that the solid-liquid mixture entering through the liquid inlet can pass through the gap between the cover portion and the inclined wall portion and enter the storage space of the box body portion 710.

[0138] The recovery storage part 700 may include a second valve 730, which is used to selectively open or close the drain port of the box body part 710; specifically, the second valve 730 includes a baffle part, which closes the drain port when the baffle part is in a first position, and opens the drain port when the baffle part is in a second position.

[0139] In the present disclosure, the recovery storage part 700 may further include a drainage channel 740, one end of the drainage channel 740 is formed as a drainage port, and the other end of the drainage channel 740 is connected to the storage space of the box body 710, wherein the connection point between the drainage channel 740 and the box body 710 is located at the bottom of the box body 710 or at the lower half of the side wall of the box body 710.

[0140] In the present disclosure, in order to enable all or most of the liquid in the box body 710 to be discharged to the outside of the box body 710, the lowest position of the connection between the drainage channel 740 and the box body 710 is not higher than the inner surface of the bottom wall of the box body 710; specifically, the connection between the drainage channel 740 and the box body 710 can be located at the bottom wall of the box body 710. At this time, the bottom wall can be horizontal, or the bottom wall can be inclined, and the connection is at the lowest point of the inclined bottom wall.

[0141] As another implementation form, the connection point between the drainage channel 740 and the box body 710 is located on the side wall of the box body 710. Therefore, at this time, the bottom wall can be horizontal. However, considering that the liquid in the box body 710 is easier to be discharged, the bottom wall of the box body 710 can be set to be inclined, and the connection point is set close to the lowest point of the inclined bottom wall.

[0142] In the present disclosure, the baffle portion is moved from the first position to the second position, or from the second position to the first position, by rotating the baffle portion.

[0143] Specifically, the baffle portion can be opened or closed based on the application of negative pressure or positive pressure to the box body portion 710. For example, when negative pressure is applied to the box body portion 710, the baffle portion is driven to move from the second position to the first position; when positive pressure is applied to the box body portion 710, the baffle portion moves from the first position to the second position.

[0144] In the present disclosure, when the negative pressure is stopped from being applied to the box body 710, the baffle portion can remain in the first position, i.e., close the drain port. In other words, the baffle portion can be moved from the second position to the first position by the gravity of the baffle portion.

[0145] Structurally, the baffle portion is located outside the box portion 710. Of course, the baffle portion can also be located inside the box portion 710. The following description only assumes that the baffle portion is located outside the box portion 710. Those skilled in the art will understand that when the baffle portion is located inside the box portion 710, its structure is similar to the illustrated structure and will not be described in detail here.

[0146] When the baffle portion is located outside the box body 710 , the recovery storage portion 700 may further include a drain pipe 750 connected to the liquid discharge port, wherein the baffle portion is hinged to the inner wall of the drain pipe 750 .

[0147] Preferably, the hinge axis between the baffle portion and the inner wall of the sewage pipe 750 is located in a certain horizontal plane.

[0148] More specifically, a step portion is formed inside the drain pipe 750. When the baffle portion is located in the second position, the baffle portion maintains a preset interval with the step portion, and a gap exists between the baffle portion and the step portion, so that the liquid discharged through the drain port passes through the gap between the baffle portion and the step portion and is discharged to the outside of the base station.

[0149] On the other hand, when the baffle portion is in the first position, the baffle portion is in contact with the step portion, and the baffle portion can be in sealed contact with the step portion to prevent gas from entering from the drainage channel when negative pressure is applied to the box body 710, thereby reducing the effect of sucking in the solid-liquid mixture.

[0150] In the present disclosure, when the baffle portion is located at the first position, the baffle portion is vertically arranged. Of course, the baffle portion can also be inclined, for example, the inclination direction of the baffle portion is the same as the inclination direction of the inclined wall portion.

[0151] As another implementation form, the baffle portion may be moved from the first position to the second position, or from the second position to the first position, by moving the baffle portion. For example, the baffle portion may be driven to move by a linear drive structure.

[0152] Thus, when negative pressure is applied to the box body 710, the first valve 720 opens the liquid inlet of the box body 710, and the second valve 730 closes the liquid discharge port of the box body 710, so that the solid-liquid mixture enters the box body 710 through the liquid inlet; when positive pressure is applied to the box body 710, the first valve 720 closes the liquid inlet of the box body 710, and the second valve 730 opens the liquid discharge port of the box body 710, so that the solid-liquid mixture is discharged from the box body 710 through the liquid discharge port.

[0153] Figure 13 It is a schematic diagram of the three-dimensional structure of the box body according to one embodiment of the present disclosure. Figure 14 It is a schematic diagram of the top structure of the box body according to one embodiment of the present disclosure.

[0154] like Figure 13 and Figure 14 As shown, the housing 710 of the present disclosure may further include a gas channel 780, which is used to provide high-pressure gas or negative pressure to the housing 710, so that the housing 710 can discharge the solid-liquid mixture therein or suck the solid-liquid mixture. In the present disclosure, one end of the gas channel 780 can be connected to the gas circulation channel, and the filter assembly 770 is located on the upstream side of the gas channel 780 in the direction of gas flow when negative pressure is provided to the housing 710.

[0155] On the other hand, the gas channel 780 is arranged in a vertical direction or a substantially vertical direction so that one interface of the gas channel 780 (i.e., the other end of the gas channel) is located at the bottom of the box body 710. At this time, the gas channel 780 can be arranged side by side with the drainage channel on one side of the box body 710 to save the layout space of the box body 710.

[0156] Figure 15 It is a schematic structural diagram of a cover body according to one embodiment of the present disclosure.

[0157] According to one embodiment of the present disclosure, Figure 15 As shown, the recycling storage portion 700 may further include a cover 760 , wherein the cover 760 is formed with a gas flow channel to apply negative pressure or positive pressure to the box portion 710 through the gas flow channel.

[0158] More preferably, a filter assembly 770 is provided in the gas flow channel so that the gas drawn out of the box body 710 and the gas supplied to the box body 710 both pass through the filter assembly 770. In an optional embodiment, the filter assembly 770 may be a HEPA assembly.

[0159] The cover 760 is disposed in the box portion 710 , and at least a portion of the cover 760 is located inside the box portion 710 , wherein an outer peripheral surface of the cover 760 is in sealing contact with an inner surface of the open top of the box portion 710 .

[0160] In the present disclosure, the cover body 760 includes a shielding portion 761, one end of which extends to the inclined wall portion and is located above the liquid inlet to prevent the liquid entering through the liquid inlet from directly entering the gas circulation channel.

[0161] Therefore, the recovery storage unit 700 of the present disclosure has an automatic sewage discharge function, which can automatically discharge the solid-liquid mixture, thereby improving the user experience.

[0162] 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.

[0163] 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.

[0164] 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 device for automatically switching air ducts, which, when applied to a base station, can provide positive or negative pressure to a recovery storage unit of the base station, characterized in that: include: a suction device having an air inlet and an air outlet and enabling gas to flow from the air inlet to the air outlet within the suction device; as well as An air duct switching unit, the air duct switching unit including a first type interface and a second type interface, wherein the first type interface is connected to the external air duct, the number of the second type interfaces is at least two, and the second type interfaces are interconnected; wherein the air duct switching portion is driven to be located in a first position and a second position; when the air duct switching portion is located in the first position, the air inlet of the suction device is communicated with at least one of the second type interfaces, the remaining second type interfaces are communicated with the gas pipeline of the recovery storage portion, and the exhaust port of the air duct switching portion is communicated with the first type interface; when the air duct switching portion is located in the second position, the air inlet of the suction device is communicated with the first type interface of the air duct switching portion, the exhaust port of the suction device is communicated with at least one of the second type interfaces of the air duct switching portion, and the remaining second type interfaces are communicated with the gas pipeline of the recovery storage portion; The air duct switching part is driven to rotate so that the air duct switching part moves between a first position and a second position; one end of the first type interface connected to the suction device, and / or one end of the second type interface connected to the suction device or the gas pipeline are both provided with a seal so that the suction device and the gas pipeline are sealedly connected to the first type interface and / or the second type interface.

2. The device for automatically switching air ducts according to claim 1, characterized in that: The number of the first type interface is at least one.

3. The device for automatically switching air ducts according to claim 1, characterized in that: The number of the second type interfaces is two, the number of the first type interface is one, and the first type interfaces and the second type interfaces are evenly distributed along the circumference of the air duct switching portion.

4. The device for automatically switching air ducts according to claim 1, characterized in that: Also includes: A first driving device is used to drive the air duct switching part to rotate.

5. The device for automatically switching air ducts according to claim 4, characterized in that: The air duct switching portion is driven so as to be movable along a direction of a rotation axis of the air duct switching portion.

6. The device for automatically switching air ducts according to claim 5, characterized in that: Also includes: A linear drive structure is used to drive the air duct switching part to move along the direction of the rotation axis.

7. The device for automatically switching air ducts according to claim 6, characterized in that: Also includes: A shell portion is formed with an accommodating space for accommodating the first drive device, the first drive device is arranged in the accommodating space of the shell portion, and at least a portion of the first drive device is located outside the shell portion so that the first drive device is connected to the air duct switching portion.

8. The device for automatically switching air ducts according to claim 7, characterized in that: The lower portion of the housing portion is formed as a part of the linear drive structure.

9. The device for automatically switching air ducts according to claim 8, characterized in that: The linear drive structure includes: a second drive device and a gear driven to rotate by the second drive device; a rack is formed at the lower part of the housing portion, and the housing portion is driven to move along the rotation axis through the engagement of the gear and the rack.

10. The device for automatically switching air ducts according to claim 9, characterized in that: Also includes: The bracket portion, the second driving device is arranged on the bracket portion, and the bracket portion is also used to provide guidance for the movement of the shell portion.

11. The device for automatically switching air ducts according to claim 1, wherein: The suction device comprises: A lower cover body is formed with an air inlet and an air outlet, and the air inlet and the air outlet are connected in the lower cover body; an upper cover body, the upper cover body being disposed on the lower cover body and forming a communication path between the air inlet and the air outlet; and The suction portion is provided in the communication path so as to allow gas to flow from the air inlet to the air outlet when the suction portion is in operation.

12. A base station, characterized in that: A device for automatically switching air ducts comprising the device described in any one of claims 1-11.

13. The base station according to claim 12, wherein: Also includes: The recovery storage part, wherein the gas pipeline connected to the device for automatically switching the air duct is connected to the air outlet of the recovery storage part.

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