Air duct switching structure and cleaning device

Abstract

An air duct switching structure (100) and a cleaning device. The air duct switching structure (100) comprises a switching cavity (1) and a switching member (2). The switching cavity (1) is provided with a first opening (1111) and a second opening (1121) which are in communication with an inner cavity of the switching cavity (1). The switching member (2) is movably arranged in the switching cavity (1). The switching piece (2) moves relative to the switching cavity (1), so as to open or close the second opening (1121), so that the first opening (1111) can be selectively communicated with the second opening (1121).

Description

Air duct switching structure and cleaning equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application No. 2023117158632, filed on December 13, 2023, the entire contents of which are incorporated by reference into this disclosure.

[0003] This disclosure claims priority to Chinese patent application No. 2023117742648 filed on December 21, 2023, the entire contents of which are incorporated by reference into this disclosure.

[0004] This disclosure claims priority to Chinese patent application No. 2024213978191 filed on June 18, 2024, the entire contents of which are incorporated herein by reference.

[0005] This disclosure claims priority to Chinese patent application No. 202421403773X filed on June 18, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0006] The present disclosure relates to the technical field of cleaning tools, and in particular to an air duct switching structure and a cleaning device. Background Art

[0007] Cleaning equipment (such as floor scrubbers, sweeping and mopping machines, or glass cleaning machines, etc.) is usually provided with a dirt collecting chamber, through which the dirt generated by the cleaning equipment during the cleaning process can be stored and collected. After the dirt collecting chamber is full, it will be cleaned together to ensure that the cleaning equipment has sufficient cleaning working time. When the cleaning equipment is removing dirt, the cleaning suction force is provided by the suction device on the cleaning equipment. When cleaning the dirt collecting chamber, the suction force is provided by the suction device on the base station. Suction devices must be provided on both the cleaning equipment and the base station, which makes the cleaning cost high and the purchase and use costs for users will also increase. In addition, the cleaning equipment needs to be provided with a dirt collecting channel for sucking in dirt and a drain channel for discharging stains in the dirt collecting chamber. The cleaning equipment has too many internal pipes or passages, and the structure is complicated, which is not conducive to the assembly and maintenance of the cleaning equipment.

[0008] Public content

[0009] Therefore, the technical problem to be solved by the present application is that the cleaning method of the dirt collecting chamber on the traditional cleaning equipment makes the structure of the cleaning equipment and the base station more complicated, which is not conducive to assembly and maintenance, and increases the user's usage cost.

[0010] To solve the above technical problems, in a first aspect, the present application provides an air duct switching structure, comprising:

[0011] A switching cavity, wherein the switching cavity is provided with a first opening and a second opening communicating with the inner cavity thereof;

[0012] A switching member is movably connected to the switching cavity. The switching member moves relative to the switching cavity to open or close the second opening, so that the first opening can be selectively connected to the second opening.

[0013] Optionally, the switching cavity is further provided with a third opening communicating with the inner cavity thereof;

[0014] The switching member moves relative to the switching chamber to open or close the third opening, so that the first opening can be selectively connected to the third opening.

[0015] Optionally, the switching cavity is configured to close the third opening when the second opening is opened, and to open the third opening when the second opening is closed.

[0016] Optionally, the switching element includes:

[0017] A reversing shaft, rotatably mounted on the switching chamber;

[0018] A blocking block protrudes from one side of the reversing shaft;

[0019] The reversing shaft rotates under the action of an external force, driving the blocking block to rotate, so that the blocking block can respectively block the second opening and the third opening.

[0020] Optionally, the air duct switching structure further includes:

[0021] A driving handle, wherein one of the driving handle and the reversing shaft is provided with an adjustment groove, and the other is provided with an adjustment protrusion that plugs into and fits with the adjustment groove;

[0022] The driving handle is rotated by an external force, and the reversing shaft is driven to rotate together with the adjusting groove and the adjusting protrusion.

[0023] Optionally, the switching cavity has a first inner wall, a second inner wall, and a transition wall connecting the first inner wall and the second inner wall;

[0024] The first opening is provided on the first inner wall, the second opening and the third opening are provided on the transition wall, the transition wall is provided in an arc shape, and the shielding block is provided in an arc shape adapted to the transition wall.

[0025] Optionally, the blocking block has a first stop wall and a second stop wall which are arranged in opposite directions along the circumference of the reversing shaft;

[0026] When the switching member connects the first opening and the second opening, the second stop wall forms a stop fit with the second inner wall; when the switching member connects the first opening and the third opening, the first stop wall forms a stop fit with the first inner wall.

[0027] Optionally, the material of the end of the blocking block facing away from the reversing shaft is an elastic material; or, a sealing member is adhered to the end of the blocking block facing away from the reversing shaft.

[0028] Optionally, the blocking block is provided with a through hole extending along the circumference of the switching cavity, and the through hole can connect the first opening and the third opening.

[0029] Optionally, the switching cavity includes:

[0030] A cavity body, wherein the first opening, the second opening, and the third opening are sequentially arranged along the circumference of the cavity body;

[0031] The extension portion is protrudingly provided on one side of the cavity body, and the extension portion is extended outward from the mouth side of the first opening.

[0032] Optionally, the first opening, the second opening and the third opening are arranged at intervals along the circumference of the switching cavity.

[0033] Optionally, the switching member is rotatably disposed in the switching cavity, and has a first working position communicating with the first opening and the second opening, and a second working position communicating with the first opening and the third opening.

[0034] Optionally, the second opening and the third opening are located on the same side of the first opening; or,

[0035] The second opening and the third opening are respectively located on both sides of the first opening.

[0036] Optionally, the air duct switching structure further includes:

[0037] The switching driver is arranged outside the switching cavity and is used to drive the switching member to move.

[0038] In a second aspect, the present application further provides an air duct switching structure, comprising:

[0039] A switching cavity, wherein the switching cavity is provided with a first opening, a second opening, and a third opening communicating with the inner cavity thereof;

[0040] a switching member, the switching member being movable relative to the switching chamber;

[0041] The switching element has a first working position in which the first opening and the second opening are conductive, and the first opening and the third opening are non-conductive.

[0042] Optionally, the switching element further has a second working position in which the first opening and the second opening are non-conductive, and the first opening and the third opening are conductive.

[0043] Optionally, the air duct switching structure further includes:

[0044] The switching driver is used to drive the switching member to move so that the switching member switches between the first working position and the second working position.

[0045] The technical solution provided in this application has the following advantages:

[0046] The air duct switching structure provided by the present application includes a switching chamber and a switching member, by providing a first opening and a second opening on the switching chamber, and by the switching member moving relative to the switching chamber, so that the first opening can be selectively connected to the second opening, thereby better controlling the conveying state of the gas or liquid between the first opening and the second opening. Specifically, when the air duct switching structure is applicable to a cleaning device, the suction device in the cleaning device is adapted to be connected to the first opening, and when the cleaning device is docked with the base station, the second opening can be connected to the sewage discharge channel on the base station. Thus, when the cleaning device is docked with the base station for decontamination, the state is switched by the switching member so that the first opening is connected to the second opening, so that under the action of the suction device, a negative pressure can be formed in the base station to suck the dirt in the sewage collection chamber into the base station, thereby realizing the self-cleaning of the sewage collection chamber of the cleaning device. The cleaning operation of the cleaning device is more convenient, and there is no need to set a separate fan on the base station to clean the sewage collection chamber, so it is more cost-effective, making the structure of the base station simpler and more convenient for assembly and maintenance of the base station. Moreover, the pipelines can be integrated through the air duct switching structure, and the internal structure of the cleaning equipment is more compact, making the cleaning equipment easier to maintain.

[0047] In a third aspect, the present application provides another air duct switching structure for a cleaning system, wherein the cleaning system includes a cleaning host and a base station, and the air duct switching structure includes:

[0048] A first air duct, adapted to connect the suction source of the cleaning host and the recovery box; and

[0049] a second air duct, adapted to connect the suction source and the base station when the cleaning host and the base station are docked;

[0050] The air duct switching structure has axial and radial directions, the extension directions of the first air duct and the second air duct are both axial or radial directions of the air duct switching structure, and the air duct switching structure can selectively present the first air duct or the second air duct.

[0051] Furthermore, the air duct switching structure includes:

[0052] The cavity body is a hollow structure; and

[0053] a switching member rotatably connected to the cavity body, wherein the switching member drives the cavity body to present the first air channel or the second air channel in response to a rotation operation;

[0054] The axial direction of the air duct switching structure is the direction of the rotation axis of the switching member, and the radial direction of the air duct switching structure is a plurality of directions perpendicular to the rotation axis of the switching member.

[0055] Furthermore, a switching cavity is formed in the cavity body, and a first opening, a third opening and a second opening communicating with the switching cavity are opened on the cavity body;

[0056] The first opening can be connected to the suction source, the third opening can be connected to the recovery box, and the second opening can be connected to the base station;

[0057] The switching member can close the third opening or the second opening in response to a rotation operation;

[0058] When the second opening is closed, the first opening and the third opening are connected to form the first air duct; when the third opening is closed, the first opening and the second opening are connected to form the second air duct.

[0059] Furthermore, when the extension directions of the first air duct and the second air duct are both axial to the air duct switching structure, the first opening, the third opening, and the second opening are all formed on the side wall of the cavity body in the axial direction of the air duct switching structure;

[0060] The first opening and the third opening are not staggered in the radial direction of the air duct switching structure, and the first opening and the second opening are not staggered in the radial direction of the air duct switching structure.

[0061] Further, the third opening and the second opening are located on the same side, and the first opening is located on the other side opposite to the third opening and / or the second opening.

[0062] Further, when the extension directions of the first air duct and the second air duct are both radial to the air duct switching structure, the first opening, the third opening and the second opening are all opened on the radial side wall of the cavity body of the air duct switching structure, and the first opening, the third opening and the second opening are not staggered in the axial direction of the air duct switching structure.

[0063] Furthermore, an opening direction of at least one of the third opening and the second opening is parallel to an opening direction of the first opening.

[0064] Furthermore, the opening direction of the third opening is parallel to the opening direction of the first opening, and the opening direction of the second opening is not parallel to the opening direction of the first opening.

[0065] Furthermore, the air duct switching structure further includes:

[0066] An air duct docking structure is fixedly connected to the cavity body, and a third air duct is formed in the air duct docking structure. One end of the third air duct is connected to the second air duct, and the other end is formed with a docking port for docking with the base station.

[0067] Furthermore, the opening direction of the docking port is parallel to the docking direction of the air duct switching structure and the base station.

[0068] Furthermore, the third air duct extends in a direction away from the first air duct, and the docking port is located at the extended end of the third air duct.

[0069] In a fourth aspect, the present application further provides an air duct switching structure for a cleaning system, wherein the cleaning system includes a cleaning host and a base station, and the air duct switching structure includes:

[0070] A first air duct, adapted to connect the suction source of the cleaning host and the recovery box; and

[0071] a second air duct, adapted to connect the suction source and the base station when the cleaning host and the base station are docked;

[0072] Wherein, the air duct switching structure is a hollow structure, and the first air duct and / or the second air duct is bent at most once inside the air duct switching structure.

[0073] Furthermore, the air duct switching structure includes:

[0074] The cavity body is a hollow structure; and

[0075] A switching member is rotatably connected to the cavity body, and the switching member drives the cavity body to present the first air duct or the second air duct in response to a rotation operation.

[0076] In a fifth aspect, the present application provides a cleaning system, comprising:

[0077] base stations;

[0078] Cleaning equipment, including extraction sources and recovery bins; and

[0079] An air duct switching structure, provided on the base station or the cleaning device, includes a first air duct and a second air duct;

[0080] Among them, the first air duct is suitable for connecting the suction source and the recovery box; the second air duct is suitable for connecting the suction source and the base station when the cleaning host and the base station are docked.

[0081] Compared with the related art, the air duct switching structure of the present application includes a first air duct and a second air duct. When the cleaning host performs a sewage suction task (such as cleaning the floor, self-cleaning, etc.), the air duct switching structure presents the first air duct, and the suction source acts on the recycling box to generate negative pressure in the recycling box and suck the dirt generated during the work process; when it is necessary to discharge the dirt in the recycling box, the cleaning host is docked with the base station, the air duct switching structure presents the second air duct, and the suction source acts on the base station to generate negative pressure in the base station and suck the dirt in the recycling box; with the above structure, a single suction source can realize the suction of dirt into the recycling box, or the suction of dirt in the recycling box into the base station, effectively reducing the production cost of the cleaning system, simplifying the structure of the cleaning system, and making assembly and maintenance more convenient; the extension directions of the first air duct and the second air duct are both axial or radial directions of the air duct switching structure, the air duct has no bends or fewer bends, the circulation is smoother, the overall structure of the air duct switching structure is compact, the installation space required is small, the adaptability is good, the air duct path is short, and the loss of the suction source during operation is effectively reduced.

[0082] In a sixth aspect, the present application provides an air duct switching structure, comprising:

[0083] A switching cavity, wherein the switching cavity is provided with a first opening and a second opening communicating with the inner cavity thereof; and

[0084] A switching member is movably connected to the switching cavity. The switching member moves relative to the switching cavity to open or close the second opening, so that the first opening can be selectively connected to the second opening.

[0085] Furthermore, the switching cavity is provided with a third opening communicating with the inner cavity thereof;

[0086] The switching member moves relative to the switching chamber to open or close the third opening, so that the first opening can be selectively connected to the third opening.

[0087] Furthermore, the switching cavity is configured to close the third opening when the second opening is opened, and to open the third opening when the second opening is closed.

[0088] Furthermore, the switching element includes:

[0089] a reversing shaft rotatably mounted on the switching chamber; and

[0090] A blocking block protrudes from one side of the reversing shaft;

[0091] The reversing shaft rotates under the action of an external force, driving the blocking block to rotate, so that the blocking block can respectively block the second opening and the third opening.

[0092] Furthermore, the air duct switching structure further includes:

[0093] A driving handle, wherein one of the driving handle and the reversing shaft is provided with an adjustment groove, and the other is provided with an adjustment protrusion that plugs into and fits with the adjustment groove;

[0094] The driving handle is rotated by an external force, and the reversing shaft is driven to rotate together with the adjusting groove and the adjusting protrusion.

[0095] Furthermore, the switching cavity has a first inner wall, a second inner wall, and a transition wall connecting the first inner wall and the second inner wall;

[0096] The first opening is provided on the first inner wall, the second opening and the third opening are provided on the transition wall, the transition wall is provided in an arc shape, and the shielding block is provided in an arc shape adapted to the transition wall.

[0097] Furthermore, the blocking block has a first stop wall and a second stop wall which are arranged in opposite directions along the circumference of the reversing shaft;

[0098] When the switching member connects the first opening and the second opening, the second stop wall forms a stop fit with the second inner wall; when the switching member connects the first opening and the third opening, the first stop wall forms a stop fit with the first inner wall.

[0099] Furthermore, the material of the end of the blocking block facing away from the reversing shaft is an elastic material; or a sealing member is adhered to the end of the blocking block facing away from the reversing shaft.

[0100] Furthermore, the blocking block is provided with a through hole extending along the circumference of the switching cavity, and the through hole can connect the first opening and the third opening.

[0101] Furthermore, the switching cavity includes:

[0102] a cavity body, wherein the first opening, the second opening, and the third opening are sequentially arranged along the circumference of the cavity body; and

[0103] The extension portion is protrudingly provided on one side of the cavity body, and the extension portion is extended outward from the mouth side of the first opening.

[0104] Furthermore, the first opening, the second opening and the third opening are arranged at intervals along the circumference of the switching cavity.

[0105] Furthermore, the switching member is rotatably disposed in the switching cavity, and has a first working position communicating with the first opening and the second opening, and a second working position communicating with the first opening and the third opening.

[0106] Further, wherein the second opening and the third opening are located on the same side of the first opening; or,

[0107] The second opening and the third opening are respectively located on both sides of the first opening.

[0108] Furthermore, the air duct switching structure is used in a cleaning system, which includes a cleaning host and a base station, wherein the first opening can be connected to the suction source of the cleaning host, the third opening can be connected to the recovery box of the cleaning host, and the second opening can be connected to the base station;

[0109] Wherein, the first opening and the second opening are connected to form a second air duct, and the second air duct is suitable for connecting the suction source and the base station when the cleaning host and the base station are docked;

[0110] The first opening and the third opening are connected to form a first air duct, and the first air duct is suitable for connecting the suction source and the recovery box;

[0111] The air duct switching structure has axial and radial directions, the extension directions of the first air duct and the second air duct are both axial or radial directions of the air duct switching structure, and the air duct switching structure can selectively present the first air duct or the second air duct.

[0112] Furthermore, the air duct switching structure includes:

[0113] The cavity body is a hollow structure; and

[0114] The switching member is rotatably connected to the cavity body, and the switching member drives the cavity body to present the first air channel or the second air channel in response to a rotation operation;

[0115] The axial direction of the air duct switching structure is the direction of the rotation axis of the switching member, and the radial direction of the air duct switching structure is a plurality of directions perpendicular to the rotation axis of the switching member.

[0116] Furthermore, the air duct switching structure further includes:

[0117] An air duct docking structure is fixedly connected to the cavity body, and a third air duct is formed in the air duct docking structure. One end of the third air duct is connected to the second air duct, and the other end is formed with a docking port for docking with the base station.

[0118] Furthermore, the opening direction of the docking port is parallel to the docking direction of the air duct switching structure and the base station.

[0119] Furthermore, the third air duct extends in a direction away from the first air duct, and the docking port is located at the extended end of the third air duct.

[0120] Furthermore, the air duct switching structure is a hollow structure, and the first air duct and / or the second air duct is bent at most once inside the air duct switching structure.

[0121] Furthermore, the air duct switching structure further includes:

[0122] The switching driver is arranged outside the switching cavity and is used to drive the switching member to move.

[0123] In a seventh aspect, the present application provides a cleaning device comprising the air duct switching structure described in any one of the above items.

[0124] In an eighth aspect, the present application provides a cleaning system, comprising: a base station; a cleaning device comprising a suction source and a recovery box; and an air duct switching structure as described in any one of the above items.

[0125] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0126] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0127] FIG1 is a structural schematic diagram of an embodiment of an air duct switching structure (when connected to an air duct docking structure) provided by the present application.

[0128] FIG2 is a structural schematic diagram of the air duct switching structure (when connected to the air duct docking structure) in FIG1 from another perspective.

[0129] FIG3 is a schematic diagram of an exploded structure of the air duct switching structure in FIG1 .

[0130] FIG4 is a schematic cross-sectional view of the air duct switching structure in FIG1 .

[0131] FIG5 is a schematic structural diagram of the switching cavity in FIG1 .

[0132] FIG6 is a schematic structural diagram of the switching element in FIG1 .

[0133] FIG. 7 is a schematic structural diagram of the switching member in FIG. 6 from another perspective.

[0134] FIG8 is a schematic structural diagram of the cleaning system in this application.

[0135] FIG9 is a schematic structural diagram of the air duct switching structure in the present application.

[0136] FIG10 is a cross-sectional schematic diagram of the air duct switching structure of FIG9 when presenting the first air duct.

[0137] FIG11 is a cross-sectional schematic diagram of the air duct switching structure of FIG9 when presenting a second air duct.

[0138] FIG12 is a schematic cross-sectional view of the housing in this application.

[0139] FIG13 is a schematic structural diagram of the air duct switching structure in the present application when a docking piece is provided.

[0140] FIG14 is a schematic cross-sectional view of FIG13 .

[0141] FIG15 is a schematic structural diagram of a base station provided with a pollution collection container in this application.

[0142] FIG16 is a schematic structural diagram of a base station in the present application in which no pollution collecting container is provided.

[0143] FIG17 is a cross-sectional schematic diagram of the air duct switching structure of the present application when docking with the base station.

[0144] Description of reference numerals:

[0145] 100-air duct switching structure; 1-switching chamber; 11-chamber body; 111-first inner wall; 1111-first opening; 112-transition wall; 1121-second opening; 1122-third opening; 113-second inner wall; 12-extension portion; 114-bottom wall; 115-top wall; 116-first air duct; 117-second air duct; 2-switching member; 21-reversing shaft; 22-blocking block; 221-through hole; 222- First stop wall; 223-second stop wall; 3-switching drive; 4-air duct docking structure; 41-first air guide port; 42-second air guide port; 43-air guide port; 44-third air duct; 45-first plug-in part; 46-sealing structure; 200-cleaning host; 210-suction source; 220-recovery box; 300-base station; 310-pipe joint; 311-second plug-in part; 320-sewage pipe; 330-sewage collecting container. DETAILED DESCRIPTION

[0146] The technical solutions of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present application, not all embodiments. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other unless there is a conflict.

[0147] It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0148] In this application, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings, or with reference to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit this application.

[0149] The present application provides an air duct switching structure 100. This air duct switching structure 100 is applicable to devices requiring gas or liquid transmission. The air duct switching structure 100 can switch the gas or liquid transmission channel, thereby delivering the gas or liquid to a designated location, making gas or liquid delivery more convenient. Specifically, the air duct switching structure 100 is applicable to cleaning equipment such as floor scrubbers, sweepers, or washer-mops. The specific structure of the air duct switching structure 100 will be described below using cleaning equipment as an example. Other devices can be adapted accordingly.

[0150] Specifically, referring to Figures 1 to 3, the air duct switching structure 100 includes a switching chamber 1, and a switching member 2 movably arranged in the switching chamber 1, and a first opening 1111 and a second opening 1121 connected to its inner cavity are provided on the switching chamber 1, wherein the switching member 2 moves relative to the switching chamber 1 to open or close the second opening 1121, so that the first opening 1111 can be selectively connected to the second opening 1121, wherein the second opening 1121 can be suitable for connecting with external components, and through the movement of the switching member 2, when the second opening 1121 is opened, the suction device can be connected with the external component (such as a base station), and when the second opening 1121 is closed, negative pressure is no longer formed at the external component.

[0151] In this embodiment, a first opening 1111 and a second opening 1121 are provided on the switching chamber 1, and the switching member 2 moves relative to the switching chamber 1, so that the first opening 1111 can be selectively connected to the second opening 1121, thereby better controlling the conveying state of the gas or liquid between the first opening 1111 and the second opening 1121. Specifically, when the air duct switching structure 100 is suitable for use on a cleaning device, the suction device (such as a fan or a vacuum pump, etc.) on the cleaning device is suitable for being connected to the first opening 1111, and when the cleaning device is docked with the base station, the second opening 1121 can be suitable for being connected to the base station. Thus, when the cleaning device is docked with the base station for decontamination, the switching member 2 moves relative to the switching chamber 1, so that the first opening 1111 is connected to the second opening 1121, so that under the action of the suction device, a negative pressure is formed in the base station to suck the dirt in the dirt collecting chamber of the cleaning device into the base station, thereby realizing self-cleaning of the dirt collecting chamber of the cleaning device. The cleaning operation of the cleaning device is more convenient, and there is no need to install a separate fan on the base station to clean the dirt collection chamber, which is more cost-effective, makes the structure of the base station simpler, and is more convenient for assembly and maintenance of the base station. In addition, the air duct switching structure 100 can integrate the pipelines, making the internal structure of the cleaning device more compact, making the cleaning device easier to maintain.

[0152] In this embodiment, a dirt storage chamber may also be provided in the base station. When the air duct switching structure 100 connects the cleaning equipment with the base station, a negative pressure is formed in the base station under the action of the suction device to suck the dirt in the dirt collecting chamber of the cleaning equipment into the dirt storage chamber of the base station.

[0153] In this embodiment, the base station can be an automatic water supply and drainage device, which is provided with a drainage mechanism connected to an external pipe (such as a sewer). When the air duct switching structure 100 connects the cleaning equipment and the base station, under the action of the suction device, a negative pressure is formed in the base station to suck the dirt in the dirt collecting chamber of the cleaning equipment into the drainage mechanism, and the drainage mechanism discharges the dirt directly into the external pipe.

[0154] Preferably, as shown in FIG1 and FIG3 , a third opening 1122 communicating with the inner cavity of the switching chamber 1 is further provided. The switching member 2 moves relative to the switching chamber 1 to open or close the third opening 1122, so that the first opening 1111 can be selectively connected to the third opening 1122. The third opening 1122 can be adapted to be connected to the dirt collecting chamber of the cleaning device. When the switching member 2 moves so that the first opening 1111 can be selectively connected to the third opening 1122, the suction device can be selectively connected to the dirt collecting chamber. When the cleaning device itself is performing suction operations such as cleaning the contact surface or self-cleaning, the first opening 1111 can be connected to the third opening 1122 through the switching member 2 to connect the suction device and the dirt collecting chamber, thereby forming a negative pressure in the dirt collecting chamber to suck external dirt into the dirt collecting chamber for storage. Thus, the air duct switching structure 100 can control the conduction and blocking of the first opening 1111 and the second opening 1121, as well as the conduction and blocking of the first opening 1111 and the third opening 1122, thereby realizing the control of the two channels, thereby better controlling the flow channel direction of the airflow in the cleaning equipment to realize different functions of the cleaning equipment.

[0155] It is understood that, in one embodiment, the air duct switching structure 100 can separately control the conduction and blocking between the first opening 1111 and the second opening 1121, and the conduction and blocking between the first opening 1111 and the third opening 1122. When the air duct switching structure 100 enables conduction or blocking of the first opening 1111 and the second opening 1121, conduction or blocking can also be achieved between the first opening 1111 and the third opening 1122. For example, a first air duct is formed between the first opening 1111 and the second opening 1121, and a second air duct is formed between the first opening 1111 and the third opening 1122. The first air duct and the second air duct are isolated and do not affect each other. The two air ducts can be freely controlled, with better working flexibility, thereby achieving a better combination form. When the first air duct is connected, the second air duct can be connected or blocked; when the first air duct is blocked, the second air duct can also be connected or blocked, so as to adapt to the usage requirements of different devices.

[0156] Specifically, when the air duct switching structure 100 is applied to a cleaning device, it is understood that when the cleaning device is performing cleaning work, the cleaning device is not connected to the base station. Therefore, when the cleaning device is cleaning, the channel for draining the sewage from the sewage collection chamber should be kept blocked. When the cleaning device has finished cleaning and is docked with the base station, the sewage discharge channel is reopened, and the channel for removing sewage is closed, so that the cleaning device no longer performs cleaning work. Therefore, preferably, when the switching chamber 1 opens the second opening 1121, the third opening 1122 should be closed, and when the switching chamber 1 closes the second opening 1121, the third opening 1122 should be opened. Thus, when the first opening 1111 is connected to the second opening 1121, the switching member 2 is configured to block the third opening 1122, so that the first opening 1111 and the third opening 1122 are blocked, and the cleaning device is in a sewage discharge state of the sewage collection chamber; and when the first opening 1111 is connected to the third opening 1122, the switching member 2 is configured to block the second opening 1121, so that the first opening 1111 and the second opening 1121 are blocked, so that the cleaning device is in a sewage suction state of sucking external dirt. The switching member 2 can simultaneously realize the opening of the second opening 1121 and the blocking of the third opening 1122, or the blocking of the second opening 1121 and the opening of the third opening 1122, without the need for multiple separate adjustments. Obviously, the control structure is simpler, and the synchronization of the state switching of the two openings is better, which can better ensure the uniqueness of the connection of the first opening 1111, reduce damage to the suction device, and better protect the cleaning device.

[0157] The switching member 2 can be moved in a variety of ways. For example, the switching member 2 can be moved in a straight line within the switching chamber 1, or in an arc, or in a combination of a straight line and an arc. The movement of the switching member 2 allows the second opening 1121 to be opened while the third opening 1122 is blocked, or the third opening 1122 to be opened while the second opening 1121 is blocked, thereby flexibly switching the airflow path.

[0158] Preferably, the switching member 2 is rotatably arranged in the switching chamber 1, and has a first working position connecting the first opening 1111 and the second opening 1121, and a second working position connecting the first opening 1111 and the third opening 1122. By rotating the switching member 2 to switch between the first working position and the second working position, the switching of the air duct of the air duct switching structure 100 is more convenient.

[0159] When in the first working position, the first opening 1111 and the third opening 1122 are non-conductively arranged, and when in the second working position, the first opening 1111 and the second opening 1121 are non-conductively arranged, thereby ensuring the uniqueness of the connectivity of the air duct switching structure 100 and making the cleaning equipment work better.

[0160] Moreover, in combination with Figures 2 and 3, the air duct switching structure 100 may also include a switching driver 3, which is driven and connected to the switching member 2. The switching driver 3 drives the switching member 2 to rotate, making the rotation of the switching member 2 more labor-saving and better realizing the automatic control of the air duct switching structure 100.

[0161] In which, when the switching member 2 is in a rotation setting, the first opening 1111, the second opening 1121, and the third opening 1122 are arranged at intervals along the circumference of the switching chamber 1, so as to be arranged along the rotation path of the switching member 2, so that the switching member 2 rotates to be located at the second opening 1121 and the third opening 1122, respectively, thereby blocking the second opening 1121 and the third opening 1122, respectively.

[0162] It is understandable that, in one embodiment, the second opening 1121 and the third opening 1122 may be respectively located on both sides of the first opening 1111. By rotating the switching member 2, the switching member 2 can pass through the second opening 1121, the first opening 1111 and the third opening 1122 in sequence, or the switching member 2 can pass through the third opening 1122, the first opening 1111 and the second opening 1121 in sequence to achieve switching between the first working position and the second working position. For example, when the cleaning device is in a cleaning state of sucking dirt, the switching member 2 is set to block the second opening 1121. After cleaning is completed, the switching member 2 can be driven to rotate in a clockwise direction by a first preset angle so that the switching member 2 can rotate from the second opening 1121 through the first opening 1111 to the third opening 1122, thereby blocking the third opening 1122 and entering a sewage discharge state docked with the base station. The switching member 2 can pass through the second opening 1121 , the first opening 1111 and the third opening 1122 in sequence, and can achieve blocking of any opening, which is more flexible and diverse.

[0163] Preferably, as shown in FIG3 , the second opening 1121 and the third opening 1122 may be located on the same side of the first opening 1111. By rotating the switching member 2, the switching member 2 can be moved and switched between the second opening 1121 and the third opening 1122. For example, when the cleaning device is in a cleaning state of sucking dirt, the switching member 2 is set to block the second opening 1121; when the cleaning device is in a sewage discharge state docked with the base station, the switching member 2 can be driven to rotate in a clockwise direction by a first preset angle so that the switching member 2 is rotated to block the third opening 1122 to enter the sewage discharge state docked with the base station. The switching member 2 only switches between the second opening 1121 and the third opening 1122, and does not pass through the first opening 1111. The rotation path is shorter, and the switching speed is faster.

[0164] Specifically, as shown in Figures 3 and 4, the switching member 2 includes a reversing shaft 21 that is rotatably mounted on the switching chamber 1, and a blocking block 22 that protrudes from one side of the reversing shaft 21. When the reversing shaft 21 is rotated by an external force, the blocking block 22 is driven to rotate together, so that the blocking block 22 can respectively block the second opening 1121 and the third opening 1122. Specifically, the first opening 1111, the second opening 1121, and the third opening 1122 are respectively arranged on the switching chamber 1 in a counterclockwise direction. When the reversing shaft 21 rotates counterclockwise, the blocking block 22 can move from the second opening 1121 to the third opening 1122. When the reversing shaft 21 rotates clockwise, the blocking block 22 can move from the third opening 1122 to the second opening 1121, thereby respectively blocking the second opening 1121 and the third opening 1122. The flexible movement and simple structure make the cost lower.

[0165] Furthermore, the switching driver 3 is connected to the reversing shaft 21. The switching driver 3 drives the reversing shaft 21 to rotate, thereby enabling the blocking block 22 to switch between the first working position and the second working position, respectively blocking the third opening 1122 and the second opening 1121, thereby achieving greater automation. Furthermore, the switching driver 3 is disposed outside the switching chamber 1 and connected to one end of the reversing shaft 21. The switching driver 3 can be configured as a drive motor, which drives the reversing shaft 21 to rotate, thereby achieving automatic movement of the blocking block 22.

[0166] Furthermore, as shown in FIG4 , the air duct switching structure 100 further includes a drive handle, wherein an adjustment groove is provided on one of the drive handle and the reversing shaft 21, and an adjustment protrusion is provided on the other that engages with the adjustment groove. When the drive handle is rotated by an external force, the adjustment groove and the adjustment protrusion cooperate to drive the reversing shaft 21 to rotate, thereby forming a rotation-stopping fit between the drive handle and the reversing shaft 21. When the switching actuator 3 fails to operate normally, the drive handle can be manually rotated, thereby driving the reversing shaft 21 and the blocking block 22 to rotate together, thereby switching the air duct switching structure 100 between the first working position and the second working position. The air duct switching structure 100 can be driven by both manual and motor drive. When the switching actuator 3 fails to operate normally, the operating state can be switched manually, providing greater flexibility and adaptability to a wider range of applications.

[0167] As for the switching chamber 1, as shown in Figures 3 and 5, the switching chamber 1 includes a chamber body 11 and an extension portion 12. The chamber body 11 is roughly a fan-shaped columnar body with a hollow interior. The extension portion 12 protrudes from one side of the chamber body 11. The first opening 1111, the second opening 1121 and the third opening 1122 are arranged in sequence along the circumference of the chamber body 11. The extension portion 12 extends outward from the circumference of the first opening 1111 to form an interface suitable for docking with the suction device. The blocking block 22 is provided on the inner side of the chamber body 11, and a through hole 221 is provided on the blocking block 22 along the circumference of the switching chamber 1. When the blocking block 22 is in the second working position, the first opening 1111 and the third opening 1122 can be connected through the through hole 221 to ensure that the suction device and the dirt collecting chamber of the cleaning equipment are connected.

[0168] Further, as shown in Figure 5, the cavity body 11 has a first inner wall 111, a second inner wall 113, and a transition wall 112 connecting the first inner wall 111 and the second inner wall 113. The first inner wall 111 and the third inner wall form two side walls of a fan shape respectively. The transition wall 112 is an arc-shaped fan-shaped wall. The first opening 1111 is provided on the first inner wall 111, and the second opening 1121 and the third opening 1122 are provided on the transition wall 112. The shape of the end face of the blocking block 22 facing away from the reversing shaft 21 is adapted to the shape of the transition wall 112, that is, the end face of the blocking block 22 facing the transition wall 112 is also arranged in an arc shape, so that the second opening 1121 and the third opening 1122 arranged in an arc shape can be better blocked.

[0169] 3 , the cavity body 11 has a bottom wall 114 connected to the first inner wall 111, the second inner wall 113, and one end of the transition wall 112, and also has a top wall 115 that is detachably arranged with the first inner wall 111, the second inner wall 113, and the transition wall 112. The reversing shaft 21 is rotatably arranged on the top wall 115. A guide cylinder is provided on the cavity body 11. After the reversing shaft 21 is rotated and passed through the top wall 115, the top wall 115 with the switching member 2 installed is then covered on the first inner wall 111, the second inner wall 113, and the transition wall 112, and the reversing shaft 21 is rotated and passed through the guide cylinder, thereby sealing the cavity body 11. The assembly of the switching member 2 is not limited to the internal space of the cavity body 11, which makes assembly more convenient, and the subsequent maintenance is also convenient to disassemble, and the maintenance cost is also lower.

[0170] In addition, for the blocking block 22, in combination with Figures 6 and 7, the blocking block 22 has a first stop wall 222 and a second stop wall 223 arranged in opposite directions along the circumference of the reversing shaft 21. When the switching member 2 is in the first working position, the second stop wall 223 forms a stop fit with the second inner wall 113 to prevent the blocking block 22 from continuing to rotate along the second opening 1121 toward the third opening 1122, thereby preventing the blocking block 22 from rotating too much and failing to completely close the third opening 1122, and at the same time indicating that the blocking block 22 has rotated into place and can stop rotating; when the switching member 2 is in the second working position, the first stop wall 222 forms a stop fit with the first inner wall 111 to prevent the blocking block 22 from continuing to rotate along the third opening 1122 toward the second opening 1121, thereby preventing the blocking block 22 from rotating too much and failing to completely close the second opening 1121, and at the same time indicating that the blocking block 22 has rotated into place and can stop rotating.

[0171] The air duct switching structure 100 may further include a position sensor and a controller, wherein the position sensor may be disposed on the first inner wall 111 and / or the second inner wall 113. When the first stop wall 222 and the second stop wall 223 rotate into position and trigger the position sensor, the position sensor transmits the detection information to the controller, which controls the switching driver 3 to operate. Thus, after the blocking block 22 rotates into position, the switching driver 3 can be stopped in time to continue operating, thereby achieving greater energy efficiency and intelligence.

[0172] Furthermore, the end of the shielding block 22 facing away from the reversing shaft 21, i.e., the end of the shielding block 22 that seals the second opening 1121 and the third opening 1122, is made of an elastic material. This elastic material allows the shielding block 22 to more closely contact the second opening 1121 and the third opening 1122, thereby achieving a better sealing effect. Alternatively, a sealing member is bonded to the end of the shielding block 22 facing away from the reversing shaft 21. This sealing member seals the gap between the shielding block 22 and the second opening 1121 and the third opening 1122, thereby ensuring a better sealing effect. The sealing member can be a sealing gasket or a sealing ring, etc.

[0173] The present application also provides a cleaning device, which includes the above-mentioned air duct switching structure 100. The cleaning device may also include an equipment body, a suction device and a dirt collection chamber provided on the equipment body. The air duct switching structure 100 may be provided on the equipment body, and the first opening 1111 of the air duct switching structure 100 is connected to the suction device, and the third opening 1122 of the air duct switching structure 100 is connected to the dirt collection chamber. When the suction device (such as a fan) is turned on, the air duct switching structure 100 can be switched to the second working position, so that the suction device can form a negative pressure in the dirt collection chamber, thereby allowing external dirt to be sucked into the dirt collection chamber for storage. When the cleaning equipment is connected to the base station, the second opening 1121 of the air duct switching structure 100 can be connected to the base station to enter the first working position, so that the suction device is connected to the base station, so that when the suction device is turned on, a negative pressure can be formed in the base station, and the dirt in the sewage collecting chamber is sucked into the base station under the action of the base station, so that the cleaning equipment can realize self-cleaning of the sewage collecting chamber. There is no need to set up a separate fan on the base station to clean the sewage collecting chamber. The structure of the base station is simpler, maintenance is more convenient, and the cost is lower.

[0174] In addition, as shown in Figures 1 to 3, the cleaning device is further provided with an air duct docking structure 4, which can conduct the second opening 1121 and the base station through the air duct docking structure 4. Specifically, the air duct docking structure 4 is provided with a first air guide port 41 that is connected to the second opening 1121, and a second air guide port 42 that is in communication with the first air guide port 41. The second air guide port 42 can be arranged on the outside of the cleaning device. When the cleaning device is docked with the base station, the second air guide port 42 can be connected to the air duct on the base station, so that the suction device on the cleaning device can be in communication with the second opening 1121 and the second air guide port 42, and thus in communication with the base station. When the suction device is working, a negative pressure can be formed in the base station.

[0175] In one embodiment, when the cleaning device is also provided with a clean water tank, a guide port 43 may be further provided on the air duct docking structure 4. The guide port 43 is connected to the clean water tank, and preferably, the guide port 43 is located on the same side as the second air guide port 42. When the cleaning device is docked with the base station, the guide port 43 may be connected to a water supply device on the base station (such as a clean water tank or a tap water pipe docking joint of the base station), so that the clean water tank of the cleaning device can be automatically supplied with water through the base station. The air duct docking structure 4 makes the structure of the air duct and water supply channel in the entire cleaning device more compact and the layout more optimized, thereby taking up less space.

[0176] Please refer to Figure 8. The cleaning system includes but is not limited to a sweeper, a scrubber, a vacuum cleaner, etc. Taking the cleaning system as a scrubber as an example, it usually includes a cleaning host 200 and a base station 300. The cleaning host 200 is mainly used to perform cleaning tasks. The cleaning host 200 includes a suction source 210 and a recovery box 220. The suction source 210 is a negative pressure generating structure such as a fan. Under the action of the suction source 210, negative pressure can be generated inside the recovery box 220 to suck out the dirt generated during the working process of the cleaning host 200; the base station 300 mainly provides cleaning liquid, dirt recovery and treatment, storage and provides power to the cleaning host 200, etc. A suction source 210 is usually also provided on the base station 300. When the cleaning host 200 and the base station 300 are docked, the suction source 210 on the base station 300 can form a negative pressure inside the base station 300 and recycle the dirt in the recovery box 220 into the base station 300.

[0177] However, with the above structure, both the cleaning host 200 and the base station 300 need to be provided with a suction source 210 for applying suction force to the dirt, which has a complex structure, high cost, and is not conducive to installation and maintenance.

[0178] Preferably, the present application provides an air duct switching structure 100 for use in the above-mentioned cleaning system. As shown in Figures 9 to 12, the air duct switching structure 100 includes a first air duct 116 and a second air duct 117. The air duct switching structure 100 can selectively present the first air duct 116 or the second air duct 117. The first air duct 116 is suitable for connecting the suction source 210 and the recovery box 220 of the cleaning host 200, and the second air duct 117 is suitable for connecting the suction source 210 and the base station 300 of the cleaning host 200 when the cleaning host 200 and the base station 300 are docked.

[0179] When the cleaning host 200 performs the task of sucking dirt, the air duct switching structure 100 presents the first air duct 116, and the suction source 210 acts on the recovery box 220 to generate negative pressure in the recovery box 220 and suck out the dirt generated during the work process; when it is necessary to discharge the dirt in the recovery box 220, the cleaning host 200 is docked with the base station 300, the air duct switching structure 100 presents the second air duct 117, and the suction source 210 acts on the base station 300 to generate negative pressure in the base station 300 and suck out the dirt in the recovery box 220.

[0180] By setting up the air duct switching structure 100, a single suction source 210 can draw dirt into the recovery box 220, or draw the dirt in the recovery box 220 into the base station 300, effectively reducing the production cost of the cleaning system, simplifying the structure of the cleaning system, and making assembly and maintenance more convenient.

[0181] Furthermore, the air duct switching structure 100 can be set on the cleaning host 200 or the base station 300. Since the suction source 210 is located on the cleaning host 200, when the cleaning host 200 performs a cleaning operation, it will be separated from the base station 300 and move freely. Preferably, in this embodiment, the air duct switching structure 100 is set on the cleaning host 200. Compared with being set on the base station 300, in this embodiment, when the cleaning host 200 performs a cleaning operation, the air duct switching structure 100 can reliably maintain the connection between the suction source 210 and the recovery box 220, and the air duct switching structure 100 will not restrict the movement of the cleaning host 200.

[0182] Furthermore, the air duct switching structure 100 is a hollow structure, forming a first air duct 116 and a second air duct 117 therein. The air duct switching structure 100 has an axial direction and a radial direction, with the first air duct 116 and the second air duct 117 extending in either the axial or radial direction of the air duct switching structure 100. With this structure, the first air duct 116 and / or the second air duct 117 have no bends or have fewer bends, resulting in smoother air flow. Furthermore, the air duct switching structure 100 is compact, requires minimal installation space, offers excellent adaptability, and has a short air duct path, effectively reducing losses during operation of the suction source 210.

[0183] Preferably, the first air duct 116 and / or the second air duct 117 is bent at most once inside the air duct switching structure 100 .

[0184] Specifically, in one embodiment, the extension directions of the first air duct 116 and the second air duct 117 are both axial to the air duct switching structure 100. At this time, the extension directions of the first air duct 116 and the second air duct 117 are parallel, and the first air duct 116 and the second air duct 117 have no bends inside the air duct switching structure 100.

[0185] In another embodiment, the extension directions of the first air duct 116 and the second air duct 117 are both radial to the air duct switching structure 100 , and the extension directions of the first air duct 116 and the second air duct 117 are parallel. At this time, the first air duct 116 and the second air duct 117 have no bends inside the air duct switching structure 100 .

[0186] Preferably, in this embodiment, the first air duct 116 and the second air duct 117 both extend in the radial direction of the air duct switching structure 100, and the first air duct 116 and / or the second air duct 117 bend once within the air duct switching structure 100. With this structure, while ensuring smooth air flow, the ends of the first air duct 116 and the second air duct 117 can be spaced apart, providing sufficient installation space between the first air duct 116 and the second air duct 117, thereby preventing the recycling box 220 and the base station 300 from being restricted by each other.

[0187] Furthermore, the air duct switching structure 100 includes a cavity body 11 and a switching member 2. The cavity body 11 is a hollow structure. The switching member 2 is movably connected in the cavity body 11. The switching member 2 can move relative to the cavity body 11 to drive the cavity body 11 to present the first air duct 116 or the second air duct 117. The switching member 2 can use rotational motion and / or translational motion to achieve air duct switching. In this embodiment, the switching member 2 is preferably rotatably connected to the cavity body 11. The switching member 2 drives the cavity body 11 to present the first air duct 116 or the second air duct 117 in response to the rotation operation, so as to facilitate the operation of the switching member 2 and simplify the connection structure between the switching member 2 and the cavity body 11. The switching member 2 can be driven by an electric drive member or a manual drive member, which is not limited in this application.

[0188] A switching chamber 1 is formed within the chamber body 11. The chamber body 11 is provided with a first opening 1111, a third opening 1122, and a second opening 1121, which are connected to the switching chamber 1. The first opening 1111 can be connected to the suction source 210, the third opening 1122 can be connected to the recovery box 220, and the second opening 1121 can be connected to the base station 300. The switching member 2 can close the third opening 1122 or the second opening 1121 in response to a rotation operation. When the second opening 1121 is closed, the first opening 1111 and the third opening 1122 are connected to form a first air duct 116. When the third opening 1122 is closed, the first opening 1111 and the second opening 1121 are connected to form a second air duct 117.

[0189] Furthermore, the axial direction of the air duct switching structure 100 is specifically the direction of the rotation axis of the switching member 2 , and the radial direction of the air duct switching structure 100 is specifically multiple directions perpendicular to the rotation axis of the switching member 2 .

[0190] When the extension direction of the first air duct 116 and the second air duct 117 are both axial to the air duct switching structure 100, the first opening 1111, the third opening 1122, and the second opening 1121 are all provided on the side wall of the cavity body 11 in the axial direction of the air duct switching structure 100. The first opening 1111 and the third opening 1122 are not staggered in the radial direction of the air duct switching structure 100, and the first opening 1111 and the second opening 1121 are not staggered in the radial direction of the air duct switching structure 100, thereby avoiding radial extension portions of the first air duct 116 and the second air duct 117, avoiding bends in the first air duct 116 and the second air duct 117, and shortening the paths of the first air duct 116 and the second air duct 117. At the same time, the first opening 1111 and the third opening 1122, as well as the first opening 1111 and the second opening 1121, are spaced farther apart, thereby improving the installation adaptability of the air duct switching structure 100.

[0191] Preferably, the third opening 1122 and the second opening 1121 are located on the same side, and the first opening 1111 is located on the other side opposite to the third opening 1122 and / or the second opening 1121, so that the suction source 210 can be away from the recovery box 220 and the base station 300, reducing the chance of liquid adhering to the suction source 210 and alleviating the risk of damage.

[0192] Furthermore, when the first air duct 116 and the second air duct 117 both extend in the radial direction of the air duct switching structure 100, the first opening 1111, the third opening 1122, and the second opening 1121 are all located on the sidewall of the cavity body 11 in the radial direction of the air duct switching structure 100. The first opening 1111, the third opening 1122, and the second opening 1121 are not staggered in the axial direction of the air duct switching structure 100, thereby avoiding axial extension of the first air duct 116 and the second air duct 117 and avoiding numerous bends in the first air duct 116 and the second air duct 117. The opening direction of at least one of the third opening 1122 and the second opening 1121 is parallel to the opening direction of the first opening 1111.

[0193] As a preferred embodiment, the opening direction of the third opening 1122 is parallel to the opening direction of the first opening 1111, the first air duct 116 has no bends inside the air duct switching structure 100, and the air duct path is short, so when the cleaning host 200 performs a cleaning operation, the suction source 210 can efficiently apply negative pressure to the recovery box 220, effectively improving the recovery efficiency of dirt; the opening direction of the second opening 1121 is not parallel to the opening direction of the first opening 1111, that is, there is an angle between the opening directions of the second opening 1121 and the third opening 1122, which can drive the second opening 1121 and the third opening 1122 not to be close to each other, so as to provide sufficient space to adapt the recovery box 220 and the base station 300, so that when the base station 300 is docked with the second opening 1121, the recovery box 220 and the base station 300 are not restricted, and the second air duct 117 is only bent once inside the air duct switching structure 100, so that the airflow is less obstructed during the circulation of the second air duct 117.

[0194] Furthermore, as a preferred embodiment, as shown in Figures 13 to 17, the air duct switching structure 100 also includes an air duct docking structure 4 fixedly connected to the cavity body 11. A third air duct 44 is formed in the air duct docking structure 4. One end of the third air duct 44 is connected to the second air duct 117, and the other end is formed with a second air guide port 42 for docking with the base station 300. The air duct docking structure 4 can be detachably fixed to the cavity body 11 via a threaded connector or a snap-fit ​​structure, and one end of the third air duct 44 is connected to the third opening 1122.

[0195] By providing an air duct docking structure 4 that is detachably connected to the cavity body 11, the adaptability of the air duct switching structure 100 can be improved, so that different air duct docking structures 4 can be replaced as needed to meet the docking requirements of different models of base stations 300, without having to adjust or replace the air duct switching structure 100 as a whole, thereby reducing costs.

[0196] Preferably, the third air duct 44 extends in a direction away from the first air duct 116, and the second air guide port 42 is located at the extended end of the third air duct 44, thereby further increasing the distance between the second air guide port 42 and the third opening 1122, further improving the adaptability of the cleaning host 200 and the base station 300.

[0197] Preferably, the opening direction of the second air duct 42 is parallel to the docking direction of the air duct switching structure 100 and the base station 300. When the cleaning host 200 is docked with the base station 300, the second air duct 42 can be synchronously docked to the preset interface of the base station 300, reducing the number of operation steps and improving the user experience. In addition, when the cleaning host 200 is in the docked state, the second air duct 42 is preferably arranged downward and, under the action of gravity of the cleaning host 200, it is tightly abutted against the preset interface, improving the tightness of the connection between the second air duct 42 and the preset interface.

[0198] Specifically, a pipe joint 310 is provided on the base station 300, and the pipe joint 310 is connected to the sewage pipe 320 inside the base station 300. The pipe joint 310 includes a second plug-in portion 311 located outside the base station 300, and the air duct docking structure 4 includes a first plug-in portion 45. The second air guide port 42 is formed on the first plug-in portion 45. The second plug-in portion 311 is suitable for plugging and cooperating with the first plug-in portion 45 to connect the pipe joint 310 and the second air guide port 42, so that the suction source 210 can act on the sewage pipe 320 to suck the dirt in the recovery box 220 into the sewage pipe 320.

[0199] The first plug-in portion 45 can be sleeved outside the second plug-in portion 311, or the first plug-in portion 45 can be inserted into the second plug-in portion 311 to achieve plug-in fit between the two.

[0200] In this embodiment, the first plug-in portion 45 is preferably inserted into the second plug-in portion 311. While satisfying the same circulation effect, the size of the first plug-in portion 45 can be made smaller, which is convenient for forming the first plug-in portion 45 on the air duct docking structure 4, and can also avoid the first plug-in portion 45 affecting other plug-in structures adjacent to the second plug-in portion 311 after docking.

[0201] Preferably, the inner contour of the second plug-in portion 311 is non-circular to prevent misalignment and ensure accurate docking between the second plug-in portion 311 and the first plug-in portion 45. The inner contour of the second plug-in portion 311 can be square or oval, and is preferably oval in this embodiment. Accordingly, the outer contour of the first plug-in portion 45 is also oval to improve smoothness of circulation.

[0202] Preferably, a sealing structure 46 may be provided on the inner circumferential wall of the second plug-in portion 311 and / or the outer circumferential wall of the first plug-in portion 45 to enhance the seal therebetween. The sealing structure 46 may be made of, but not limited to, rubber, silicone, or a plastic with a certain degree of elasticity. In this embodiment, the sealing structure 46 is provided around the outer circumferential wall of the first plug-in portion 45 to facilitate cleaning. Multiple sealing structures 46 may be provided at intervals along the plug-in direction to enhance the sealing effect.

[0203] Furthermore, returning to FIG8 , the present application further provides a cleaning device, comprising a cleaning main unit 200 and an air duct switching structure 100, wherein the air duct switching structure 100 is disposed on the cleaning main unit 200. Preferably, when the cleaning main unit 200 is in a cleaning state or a docked state, the first opening 1111 is located above the third opening 1122 and the second opening 1121, thereby effectively reducing the probability of dirt flowing with the suction airflow toward the suction source 210, thereby ensuring the normal operation of the suction source 210.

[0204] Furthermore, the present application also provides a cleaning system, including a cleaning device, a base station 300 and an air duct switching structure 100, the cleaning device includes a suction source 210 and a recovery box 220, the air duct switching structure 100 is arranged on the cleaning device or the base station 300, the air duct switching structure 100 includes a first air duct 116 and a second air duct 117, the first air duct 116 is suitable for connecting the suction source 210 and the recovery box 220, and the second air duct 117 is suitable for connecting the suction source 210 and the base station 300 when the cleaning host 200 and the base station 300 are docked.

[0205] A sewage pipe 320 is provided inside the base station 300. The input end of the sewage pipe 320 can be connected to the recycling box 220, and the output end of the sewage pipe 320 can be selectively connected to the sewage collecting chamber, or directly connected to the external sewage pipe. When the second air duct 117 connects the suction source 210 and the base station 300, under the action of the suction source 210, the sewage collecting chamber and / or the sewage pipe 320 generate negative pressure, so that the dirt in the recycling box 220 is collected in the sewage collecting chamber, or enters the sewage pipe along the sewage pipe 320.

[0206] Specifically, in one embodiment, as shown in FIG15 , a waste collection container 330 is provided on the base station 300 and is connected to the waste discharge pipeline 320. A waste collection cavity is formed on the waste collection container 330 to temporarily store waste in the base station 300, thereby improving the installation adaptability of the base station 300. The waste collection container 330 is detachably connected to the base station 300, facilitating subsequent emptying of the waste collection container 330.

[0207] Indeed, in another embodiment, as shown in Figure 16, the base station 300 may not be equipped with a sewage collection container 330, and the sewage pipe 320 extends out of the base station 300 to connect to an external sewage pipe. The sewage sucked into the base station 300 can be automatically discharged to the external sewage pipe, thereby avoiding manual dumping of sewage and improving the user experience.

[0208] Obviously, the embodiments described above are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, ordinary technicians in this field can make other different forms of changes or modifications without making any creative work, which should fall within the scope of protection of this application.

Claims

1. An air duct switching structure (100), comprising: A switching chamber (1), wherein the switching chamber (1) is provided with a first opening (1111) and a second opening (1121) communicating with the inner chamber thereof; as well as A switching member (2) is movably connected to the switching chamber (1); the switching member (2) moves relative to the switching chamber (1) to open or close the second opening (1121), so that the first opening (1111) can be selectively connected to the second opening (1121).

2. The air duct switching structure (100) according to claim 1, wherein: The switching cavity (1) is also provided with a third opening (1122) communicating with the inner cavity thereof; The switching member (2) moves relative to the switching chamber (1) to open or close the third opening (1122), so that the first opening (1111) can be selectively connected to the third opening (1122).

3. The air duct switching structure (100) according to claim 2, wherein: The switching chamber (1) is configured to close the third opening (1122) when the second opening (1121) is opened, and is configured to open the third opening (1122) when the second opening (1121) is closed.

4. The air duct switching structure (100) according to claim 3, wherein: The switching element (2) comprises: A reversing shaft (21) rotatably mounted on the switching chamber (1); and A blocking block (22) protrudes from one side of the reversing shaft (21); The reversing shaft (21) rotates under the action of an external force, driving the blocking block (22) to rotate, so that the blocking block (22) can respectively block the second opening (1121) and the third opening (1122).

5. The air duct switching structure (100) according to claim 4, wherein: The air duct switching structure (100) further includes: A driving handle, wherein one of the driving handle and the reversing shaft (21) is provided with an adjustment groove, and the other is provided with an adjustment protrusion that is plugged into and matched with the adjustment groove; The driving handle is rotated by an external force, and the reversing shaft (21) is driven to rotate together with the cooperation of the adjusting groove and the adjusting protrusion.

6. The air duct switching structure (100) according to claim 4, wherein: The switching chamber (1) comprises a first inner wall (111), a second inner wall (113), and a transition wall (112) connecting the first inner wall (111) and the second inner wall (113); The first opening (1111) is arranged on the first inner wall (111), the second opening (1121) and the third opening (1122) are arranged on the transition wall (112), the transition wall (112) is arranged in an arc shape, and the shielding block (22) is arranged in an arc shape that is compatible with the transition wall (112).

7. The air duct switching structure (100) according to claim 6, wherein: The blocking block (22) comprises a first stop wall (222) and a second stop wall (223) which are arranged in a direction away from each other along the circumference of the reversing shaft (21); Wherein, when the switching member (2) conducts the first opening (1111) and the second opening (1121), the second stop wall (223) forms a stop fit with the second inner wall (113); and when the switching member (2) conducts the first opening (1111) and the third opening (1122), the first stop wall (222) forms a stop fit with the first inner wall (111).

8. The air duct switching structure (100) according to claim 4, wherein: The material of the end of the blocking block (22) facing away from the reversing shaft (21) is an elastic material; or, a sealing member is bonded to the end of the blocking block (22) facing away from the reversing shaft (21).

9. The air duct switching structure (100) according to claim 4, wherein: The blocking block (22) is provided with a through hole (221) extending along the circumference of the switching cavity (1), and the through hole (221) can connect the first opening (1111) and the third opening (1122).

10. The air duct switching structure (100) according to claim 2 or 3, wherein: The switching chamber (1) comprises: A cavity body (11), wherein the first opening (1111), the second opening (1121) and the third opening (1122) are sequentially arranged along the circumference of the cavity body (11); and An extension portion (12) is protrudingly arranged on one side of the cavity body (11), and the extension portion (12) is extended outward from the mouth side of the first opening (1111).

11. The air duct switching structure (100) according to claim 2 or 3, wherein: The first opening (1111), the second opening (1121) and the third opening (1122) are arranged at intervals along the circumference of the switching chamber (1).

12. The air duct switching structure (100) according to claim 2 or 3, wherein: The switching member (2) is rotatably disposed in the switching chamber (1), and has a first working position connecting the first opening (1111) and the second opening (1121), and a second working position connecting the first opening (1111) and the third opening (1122).

13. The air duct switching structure (100) according to claim 2 or 3, wherein: The second opening (1121) and the third opening (1122) are located on the same side of the first opening (1111); or, The second opening (1121) and the third opening (1122) are respectively located on two sides of the first opening (1111).

14. The air duct switching structure (100) according to claim 2, used in a cleaning system, the cleaning system comprising a cleaning host (200) and a base station (300), the first opening (1111) being connectable to a suction source (210) of the cleaning host (200), the third opening (1122) being connectable to a recovery box (220) of the cleaning host (200), and the second opening (1122) being connectable to the base station (300); in, The first opening (1111) and the second opening (1121) are connected to form a second air duct (117), and the second air duct (117) is suitable for connecting the suction source (210) and the base station (300) when the cleaning host (200) and the base station (300) are docked; The first opening (1111) and the third opening (1122) are connected to form a first air duct (116), and the first air duct (116) is suitable for connecting the suction source (210) and the recovery box (220); The air duct switching structure (100) has an axial direction and a radial direction, the extension direction of the first air duct (116) and the second air duct (117) are both the axial direction or the radial direction of the air duct switching structure (100), and the air duct switching structure (100) can selectively present the first air duct (116) or the second air duct (117).

15. The air duct switching structure (100) according to claim 14, wherein: The air duct switching structure (100) comprises: The cavity body (11) is a hollow structure; and The switching member (2) is rotatably connected to the cavity body (11), and the switching member (2) drives the cavity body (11) to present the first air duct (116) or the second air duct (117) in response to a rotation operation; The axial direction of the air duct switching structure (100) is the direction of the rotation axis of the switching member (2), and the radial direction of the air duct switching structure (100) is a plurality of directions perpendicular to the rotation axis of the switching member (2).

16. The air duct switching structure (100) according to claim 15, wherein: The air duct switching structure (100) further includes: An air duct docking structure (4) is fixedly connected to the cavity body (11), and a third air duct (44) is formed in the air duct docking structure (4). One end of the third air duct (44) is connected to the second air duct (117), and the other end is formed with a docking interface (152) for docking with the base station (300).

17. The air duct switching structure (100) according to claim 16, wherein: The opening direction of the docking port (152) is parallel to the docking direction of the air duct switching structure (100) and the base station (300).

18. The air duct switching structure (100) according to claim 16, wherein: The third air duct (44) extends in a direction away from the first air duct (116), and the docking port (152) is located at the extended end of the third air duct (44).

19. The air duct switching structure (100) according to claim 14, wherein: The air duct switching structure (100) is a hollow structure, and the first air duct (116) and / or the second air duct (117) is bent at most once inside the air duct switching structure (100).

20. The air duct switching structure (100) according to claim 1, wherein: The air duct switching structure (100) further includes: A switching driver (3) is arranged outside the switching chamber (1) and is used to drive the switching member (2) to move.

21. An air duct switching structure (100), wherein: include: A switching chamber (1), wherein the switching chamber (1) is provided with a first opening (1111), a second opening (1121) and a third opening (1122) communicating with the inner chamber thereof; and A switching member (2), wherein the switching member (2) is movable relative to the switching chamber (1); The switching element (2) has a first working position in which the first opening (1111) and the second opening (1121) are conductive, and the first opening (1111) and the third opening (1122) are non-conductive.

22. The air duct switching structure (100) according to claim 21, wherein: The switching element (2) also has a second working position in which the first opening (1111) and the second opening (1121) are non-conductive, and the first opening (1111) and the third opening (1122) are conductive.

23. The air duct switching structure (100) according to claim 22, wherein: The air duct switching structure (100) further includes: A switching driver (3) is used to drive the switching member (2) to move so that the switching member (2) switches between the first working position and the second working position.

24. A cleaning device, comprising the air duct switching structure (100) according to any one of claims 1 to 23.

25. A cleaning system comprising: Base station (300); A cleaning device comprising a suction source (210) and a recovery box (220); And, comprising the air duct switching structure (100) as described in any one of claims 1 to 23.

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