Cleaning system

Abstract

The utility model discloses a cleaning system. The cleaning system comprises a base station, cleaning equipment, an air duct switching structure and a reversing driving structure, the cleaning equipment comprises a suction device; the air duct switching structure is movably arranged on the base station or the cleaning equipment; the reversing driving structure is connected with the air duct switching structure and is used for driving the air duct switching structure to move; when the cleaning equipment is in butt joint with a base station, the air duct switching structure can be communicated with the suction device and the base station, so that suction force generated by the suction device enters the base station, and dirt is sucked to the base station. According to the technical scheme provided by the utility model, an independent fan does not need to be arranged on the base station to clean the cleaning equipment, so that more cost is saved, the structure of the base station is simpler, and the base station is more convenient to install and maintain.

Description

[0001] Related Applications

[0002] This application claims priority to Chinese patent application number 2023117158632, entitled “Cleaning equipment, control method for cleaning equipment and cleaning system”, filed on December 13, 2023, as well as priority to Chinese patent application number 2023117742648, entitled “Cleaning equipment, control method for cleaning equipment and cleaning system”, filed on December 21, 2023, the entire text of which is hereby incorporated by reference. Technical Field

[0003] The utility model relates to the technical field of cleaning tools, in particular to a cleaning system. Background Art

[0004] The cleaning system usually includes a cleaning device and a base station. The cleaning device can be used to perform cleaning work, and the base station can be used to clean the cleaning parts and the dirt collecting chamber on the cleaning device to ensure that the cleaning device is cleaner and has a better cleaning effect when it is used again. Specifically, when the base station is performing self-cleaning of the cleaning device, the air flow channel on the base station is connected to the air flow channel on the cleaning device, and after the fan on the base station is turned on, a negative pressure is formed in the air flow channel of the base station through the fan, thereby sucking out the dirt in the dirt collecting chamber of the cleaning device to achieve the cleaning of the dirt collecting chamber of the cleaning device. However, this setting requires fans to be installed on both the cleaning device and the base station, which makes the cost of the entire cleaning system higher and the structure complex, which is not conducive to the installation and maintenance of the base station. Utility Model Content

[0005] Therefore, the technical problem to be solved by the utility model is that the traditional setting form of the cleaning system requires fans to be installed on both the cleaning equipment and the base station. The cleaning system has high cost and complex structure, which is not conducive to the installation and maintenance of the base station.

[0006] In order to solve the above technical problems, the utility model provides a cleaning system, comprising:

[0007] Base station;

[0008] cleaning equipment, including suction devices;

[0009] An air duct switching structure, movably arranged at the base station or the cleaning device;

[0010] A reversing drive structure, connected to the air duct switching structure, and used to drive the air duct switching structure to move;

[0011] When the cleaning device is docked with the base station, the air duct switching structure can connect the suction device and the base station, so that the suction force generated by the suction device enters the base station to suck the dirt into the base station.

[0012] Optionally, there is a first air duct connected between the suction device and the base station, and the reversing drive structure drives the air duct switching structure to move, so that the air duct switching structure has a first connected state that keeps the first air duct in connection.

[0013] Optionally, the cleaning device includes a dirt collecting chamber, and the reversing drive structure drives the air duct switching structure to move, so that the air duct switching structure can connect the suction device and the dirt collecting chamber.

[0014] Optionally, a second air duct is connected between the suction device and the dirt collecting chamber, and the reversing drive structure drives the air duct switching structure to move, so that the air duct switching structure has a second connected state that keeps the second air duct in connection.

[0015] Optionally, in the first connected state, the reversing drive structure may drive the air duct switching structure to move to block the second air duct; and / or,

[0016] In the second connection state, the reversing driving structure can drive the air duct switching structure to move to block the first air duct.

[0017] Optionally, the cleaning device includes a dirt collecting chamber, a first air duct in communication with the suction device and the base station, and a second air duct in communication with the suction device and the dirt collecting chamber;

[0018] The air duct switching structure has a first connection state in which the first air duct is connected and the second air duct is blocked, and a second connection state in which the second air duct is connected and the first air duct is blocked;

[0019] The reversing driving structure drives the air duct switching structure to move so as to switch between the first connecting state and the second connecting state.

[0020] Optionally, the air duct switching structure is arranged to rotate, and the reversing drive structure drives the air duct switching structure to rotate a first preset angle in a first direction so that the air duct switching structure can switch from the first connected state to the second connected state, and the reversing drive structure drives the air duct switching structure to rotate a second preset angle in the second direction to switch from the second connected state to the first connected state.

[0021] Optionally, the first direction and the second direction are in the same direction or in opposite directions; and / or, the first preset angle and the second preset angle are the same or different.

[0022] The utility model also provides a cleaning system, comprising:

[0023] Base station;

[0024] cleaning equipment, including suction devices;

[0025] An air duct switching structure, movably disposed on the base station and / or the cleaning device, having a first connection state and a second connection state;

[0026] The reversing drive structure is connected to the air duct switching structure to drive the air duct switching structure to switch between the first connected state and the second connected state, so that the air duct switching structure can selectively connect the suction device and the base station.

[0027] Optionally, the air duct switching structure is arranged on the cleaning equipment, and the cleaning equipment includes a dirt collecting chamber. When in the first connected state, the air duct switching structure connects the suction device and the base station, and when in the second connected state, the air duct switching structure connects the suction device and the dirt collecting chamber.

[0028] Optionally, when in the first connected state, the air duct switching structure blocks the suction device and the dirt collecting chamber; when in the second connected state, the air duct switching structure blocks the suction device and the base station.

[0029] The technical solution provided by the utility model has the following advantages:

[0030] The cleaning device provided by the utility model includes a device body, a suction device, an air duct switching structure and a reversing drive structure. The reversing drive structure drives the air duct switching structure to move, so that when the cleaning device is connected to the base station, the suction device and the base station can be connected through the air duct switching structure, so that negative pressure is formed in the base station to suck out the dirt in the dirt collecting chamber of the cleaning device, so as to achieve self-cleaning of the dirt collecting chamber on the cleaning device; or, the suction device is connected to the cleaning tank on the base station to remove the dirt formed by the cleaning parts of the cleaning device during the cleaning process; or, the suction device is connected to the dirt storage chamber on the base station to suck and compress the garbage in the dirt storage chamber. Therefore, there is no need to set a separate fan on the base station to clean the cleaning device, which is more cost-saving, and the structure of the base station can also be simpler, and the installation and maintenance of the base station can be more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic structural diagram of an embodiment of a cleaning system provided by the utility model;

[0033] Figure 2 for Figure 1 A simplified structural diagram of the cleaning system (when the air duct switching structure is in the first connected state);

[0034] Figure 3 for Figure 1 A simplified structural diagram of the cleaning system (when the air duct switching structure is in the second connected state);

[0035] Figure 4 for Figure 1 A structural schematic diagram of an embodiment of the air duct switching structure described in;

[0036] Figure 5 for Figure 4 A schematic diagram of the decomposed structure of the air duct switching structure;

[0037] Figure 6 for Figure 4 A cross-sectional structural schematic diagram of the air duct switching structure described in;

[0038] Figure 7 for Figure 4 Another cross-sectional structural schematic diagram of the air duct switching structure described in;

[0039] Figure 8 for Figure 1 A structural schematic diagram of another embodiment of the air duct switching structure described in;

[0040] Fig. 9 for Figure 8 A schematic diagram of an exploded structure of the air duct switching structure;

[0041] Fig.10 for Figure 8 The structural diagram of the middle reversing housing;

[0042] Fig.11 for Figure 8 A cross-sectional structural schematic diagram of the air duct switching structure described in .

[0043] Description of reference numerals:

[0044] 1000-cleaning system; 100-cleaning equipment; 1-equipment body; 2-dirt collecting chamber; 3-suction device; 4 / 4'-air duct switching structure; 41 / 41'-reversing housing; 411 / 411'-first pair of interfaces; 412 / 412'-second pair of interfaces; 413 / 413'-third pair of interfaces; 414-first inner wall; 415-second inner wall; 416-transition wall; 42 / 42'-switching member; 421-third An opening; 422-a second opening; 423-a third opening; 424-a first shielding structure; 425-a second shielding structure; 43 / 43'-a reversing drive structure; 431-a reversing drive; 432-a driving worm; 433-a driving worm wheel; 44-a reversing shaft; 45-a reversing baffle; 46-a shielding drive; 5-an air duct docking structure; 51-a first air guide outlet; 52-a second air guide outlet; 53-a guide interface; 200-a base station. DETAILED DESCRIPTION

[0045] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. The utility model 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 of the utility model and the features in the embodiments can be combined with each other without conflict.

[0046] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0047] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; 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-mentioned directional words are not used to limit the present invention.

[0048] Example 1

[0049] The utility model provides a cleaning system 1000, please refer to Figures 1 to 3The cleaning system 1000 includes a base station 200, a cleaning device 100, an air duct switching structure 4 / 4' and a reversing drive structure 43 / 43', wherein the cleaning device 100 includes a suction device 3, the air duct switching structure 4 / 4' is movably arranged on the base station 200 or the cleaning device 100, and the reversing drive structure 43 / 43' is connected to the air duct switching structure 4 / 4' to drive the air duct switching structure 4 / 4' to move; when the cleaning device 100 is docked with the base station 200, the air duct switching structure 4 / 4' can connect the suction device 3 and the base station 200, so that the suction force generated by the suction device 3 enters the base station 200 to suck the dirt into the base station 200.

[0050] In this embodiment, the reversing drive structure 43 / 43' is an electric drive structure, and the reversing drive structure 43 / 43' drives the air duct switching structure 4 / 4' to move, so that when the cleaning device 100 is connected to the base station 200, the air duct switching structure 4 / 4' can connect the suction device 3 and the base station 200, so that a negative pressure is formed in the base station 200 to suck out the dirt in the dirt collection chamber 2 of the cleaning device 100, so as to achieve self-cleaning of the dirt collection chamber 2 on the cleaning device 100; or, the suction device 3 is connected to the cleaning tank on the base station 200 to remove the dirt formed by the cleaning parts of the cleaning device 100 during the cleaning process; or, the suction device 3 is connected to the dirt storage chamber on the base station 200 to suck and compress the garbage in the dirt storage chamber. Therefore, there is no need to set a separate fan on the base station 200 to clean the cleaning device 100, which is more cost-saving, and the structure of the base station 200 can also be simpler, and the installation and maintenance of the base station 200 are more convenient.

[0051] Among them, there is a first air duct connected between the suction device 3 and the base station 200, and the first air duct can be set as a connecting pipe, and the suction device 3 and the base station 200 are connected by the connecting pipe; or, the first air duct includes a first air duct section and a second air duct section, the first air duct section is formed on the base station 200 to form an air flow channel, and the second air duct section is formed on the cleaning device 100, and a docking port is provided on the cleaning device 100, and the suction device 3 and the docking port are connected through the second air duct section. When the cleaning device 100 is placed on the base station 200, the docking port is connected to the air flow channel of the base station 200, and the air duct switching structure 4 / 4' is driven to move through the reversing driving structure 43 / 43' to conduct the first air duct section and the second air duct section, thereby conducting the suction device 3 and the base station 200. The suction force generated by the suction device 3 forms a negative pressure in the air flow channel of the base station 200, and the negative pressure can form a suction force at the place to be cleaned or to be treated that is connected to the air flow channel, so that the dirt at the place to be cleaned can be sucked into the air flow channel or the dirt at the place to be treated can be deformed and compressed under the action of the suction force, etc., making the functions of the base station 200 more diverse, and the base station 200 does not need to provide additional power for dirt treatment, which is more energy-saving and the structure of the base station 200 is also simpler.

[0052] For the cleaning device 100, Figure 2 and Figure 3 As shown, the cleaning device 100 also includes a dirt collecting chamber 2, which drives the air duct switching structure 4 / 4' to move through the reversing driving structure 43 / 43', so that the air duct switching structure 4 / 4' can connect the suction device 3 and the dirt collecting chamber 2, so that when the suction device 3 is working, the suction device 3 can form a negative pressure in the dirt collecting chamber 2, and the external dirt can be temporarily stored in the dirt collecting chamber 2, thereby realizing the cleaning work of the cleaning device 100.

[0053] Moreover, if Figure 3 As shown in , there is also a second air duct connected between the suction device 3 and the dirt collecting chamber 2, and the air duct switching structure 4 / 4' is driven to move by the reversing driving structure 43 / 43', so that the air duct switching structure 4 / 4' has a second connected state that keeps the second air duct connected. It can be understood that a dirt suction port is also provided on the cleaning device 100, and the dirt suction port can face the bottom surface, such as the position to be cleaned (such as the ground) or the cleaning slot of the base station, and the dirt suction port is connected to the dirt collecting chamber 2, so that under the action of the suction device 3, external dirt can enter the dirt collecting chamber 2 from the dirt suction port of the cleaning device 100.

[0054] It can be understood that the air duct switching structure 4 / 4' can be arranged on the cleaning device 100, or can be arranged on the base station 200, or the air duct switching structure 4 / 4' can be an independent structure to be arranged independently of the cleaning device 100 and the base station 200; or, the air duct switching structure 4 / 4' is provided with multiple sets, so that at least one set of air duct switching structure 4 / 4' is respectively provided on the base station 200 and the cleaning device 100, so as to ensure that the air duct switching structure 4 / 4' can connect the suction device 3 and the base station 200.

[0055] Preferably, the air duct switching structure 4 / 4' is arranged on the cleaning device 100, so that the air duct switching structure 4 / 4' can connect the suction device 3 and the base station 200, and can also connect the suction device 3 and the dirt collecting chamber 2 on the cleaning device 100, and the air duct switching structure 4 / 4' can realize the switching of two working states of the cleaning device 100. The following will take the air duct switching structure 4 / 4' arranged on the cleaning device 100 as an example for description, and other embodiments can be implemented with reference to adaptability.

[0056] In one embodiment, the working states of the first air duct and the second air duct are independent of each other and do not affect each other. That is, when the air duct switching structure 4 / 4' makes the first air duct in an open state, the second air duct can be in an open or blocked state; when the air duct switching structure 4 / 4' makes the first air duct in a blocked state, the second air duct can be in an open or blocked state. The states of the first air duct and the second air duct can be controlled separately by the air duct switching structure 4 / 4', so that the state adjustment of each air duct is more flexible, and the connection mode is more diverse.

[0057] Specifically, the air duct switching structure 4 / 4' may include a plurality of blocking plates, and at least one blocking plate may be provided at each air duct opening or in each air duct, and each air duct may be opened and closed by opening and closing the blocking plates. When switching the working state of the cleaning device 100, the state of the first air duct and the second air duct may be controlled by controlling the position of each blocking plate, and the adjustment is simple and convenient.

[0058] Preferably, in the first connected state, the reversing driving structure 43 / 43' can drive the air duct switching structure 4 / 4' to move to block the second air duct, so that when the suction device 3 is connected to the base station 200, the second air duct remains in a blocked state to avoid causing airflow diversion and affecting the suction effect of the base station 200.

[0059] Similarly, in the second connected state, the reversing driving structure 43 / 43' can drive the air duct switching structure 4 / 4' to move to block the first air duct, so that when the suction device 3 is connected to the sewage collecting chamber 2, the first air duct remains in a blocked state to avoid the airflow forming an imbalance in the sewage collecting chamber 2, thereby affecting the sewage suction effect.

[0060] The switching speeds of the states of the first air duct and the second air duct can be set differently, that is, after the first air duct is in the open state, the second air duct is switched to the blocked state, or after the second air duct is in the blocked state, the first air duct is controlled to be in the open state, so as to better control each air duct.

[0061] Preferably, the switching speeds of the states of the first air duct and the second air duct are set synchronously. That is, when the first air duct is in the open state, the second air duct enters the blocked state at the same time; when the first air duct is in the blocked state, the second air duct enters the open state at the same time, ensuring that the two air ducts will not be opened or blocked at the same time, which will cause damage to the suction device 3 and affect the normal operation of the entire cleaning device 100.

[0062] Specifically, combined Figure 2 and Figure 3 As shown, the air duct switching structure 4 / 4' has a first connection state of connecting the first air duct and blocking the second air duct, and a second connection state of connecting the second air duct and blocking the first air duct; the reversing driving structure 43 / 43' drives the air duct switching structure 4 / 4' to move, so as to switch between the first connection state and the second connection state. The reversing driving structure 43 / 43' drives the air duct switching structure 4 / 4' to move, so that when the suction device 3 and the base station 200 are connected, the suction device 3 and the dirt collecting chamber 2 are kept in a blocked state, so that the suction force in the base station 200 is greater, thereby achieving a better decontamination effect; and when the suction device 3 and the dirt collecting chamber 2 are connected, the suction device 3 and the base station 200 are kept in a blocked state, and the suction force generated by the suction device 3 can be fully used for the suction of the cleaning device 100, and the cleaning efficiency of the cleaning device 100 is higher, thereby achieving a better cleaning effect.

[0063] Among them, the air duct switching structure 4 / 4' has many movement modes. For example, the air duct switching structure 4 / 4' can move back and forth in a straight line, or the air duct switching structure 4 / 4' can move back and forth in an arc, or the air duct switching structure 4 / 4' moves in a circular trajectory. By moving the air duct switching structure 4 / 4', the first connection state and the second connection state are switched to realize the switching of the two working states of the cleaning device 100.

[0064] Preferably, the air duct switching structure 4 / 4' is arranged to rotate, and the reversing driving structure 43 / 43' drives the air duct switching structure 4 / 4' to rotate by a first preset angle in the first direction, so that the air duct switching structure 4 / 4' can be switched from the first connected state to the second connected state, and the reversing driving structure 43 / 43' drives the air duct switching structure 4 / 4' to rotate by a second preset angle in the second direction to switch from the second connected state to the first connected state. This makes the state switching of the air duct switching structure 4 / 4' more flexible and convenient, thereby switching faster and more efficient.

[0065] The first direction and the second direction may be in the same direction or in opposite directions. For example, on the circumferential surface along which the air duct switching structure 4 / 4' rotates, when in the first connected state, the air duct switching structure 4 / 4' is in the first position of the circumferential surface, and when in the second connected state, the air duct switching structure 4 / 4' is in the second position of the circumferential surface, and the first direction is the clockwise direction. When the air duct switching structure 4 / 4' rotates in the clockwise direction by the first preset angle, it can reach the second position, thereby entering the second connected state, and then, when the air duct switching structure 4 / 4' continues to rotate in the clockwise direction by the second preset angle, it can rotate from the second position to the first position, thereby restoring from the second connected state to the first connected state; or, when the air duct switching structure 4 / 4' rotates in the clockwise direction by the first preset angle, it can reach the second position, thereby entering the second connected state, and then, when the air duct switching structure 4 / 4' continues to rotate in the counterclockwise direction by the second preset angle, it can rotate from the second position to the first position, thereby restoring from the second connected state to the first connected state. It can be seen that through the two rotation methods, the air duct switching structure 4 / 4' can realize the switching between the first connected state and the second connected state, but when the first direction and the second direction are opposite, the rotation path of the air duct switching structure 4 / 4' can be set shorter, so that the volume of the entire air duct switching structure 4 / 4' can be set smaller, saving more space.

[0066] It can be understood that the first preset angle and the second preset angle can be the same or different. When the first direction and the second direction are oppositely arranged, the first preset angle and the second preset angle can be equal. When the first direction and the second direction are the same, if the first position and the second position are oppositely arranged along the radial direction of the circumferential surface, the first preset angle and the second preset angle can both be 180°. When the angle between the first position and the second position is less than 180°, and the first preset angle is θ, the second preset angle is 360°-θ.

[0067] For the air duct switching structure 4 / 4', in one embodiment, combined with Figure 4 and Figure 8 As shown, the air duct switching structure 4 / 4' includes a reversing shell 41 / 41' and a switching member 42 / 42', wherein the switching member 42 / 42' is rotatably disposed in the reversing shell 41 / 41' and is connected to the reversing driving structure 43 / 43'; the reversing driving structure 43 / 43' drives the switching member 42 / 42' to rotate, so that the switching member 42 / 42' can conduct the first air duct and block the second air duct to be in a first connected state, and the switching member 42 / 42' can conduct the second air duct and block the first air duct to be in a second connected state, and the switching between the first connected state and the second connected state is realized by the rotation of the switching member 42 / 42'.

[0068] Preferably, a first pairing port 411 / 411', a second pairing port 412 / 412' and a third pairing port 413 / 413' are provided on the reversing housing 41 / 41', the first pairing port 411 / 411' is connected to the suction device 3, the second pairing port 412 / 412' is connected to the base station 200, and the third pairing port 413 / 413' is connected to the sewage collecting chamber 2; a first channel and a second channel, as well as a first shielding member are formed on the switching member 42 / 42' Structure 424 and the second shielding structure 425; when in the first connected state, the first channel connects the first pair of interfaces 411 / 411' and the second pair of interfaces 412 / 412', and the second shielding structure 425 blocks the third pair of interfaces 413 / 413'; when in the second connected state, the second channel connects the first pair of interfaces 411 / 411' and the third pair of interfaces 413 / 413', and the first shielding structure 424 blocks the second pair of interfaces 412 / 412'. By rotating the switching member 42 / 42' relative to the reversing shell 41 / 41', the first channel on the switching member 42 / 42' can be connected to the first docking port 411 / 411' and the second docking port 412 / 412', so that the suction device 3 can be connected to the base station 200, and a negative pressure can be formed in the base station 200 to suck out the dirt in the dirt collecting chamber 2 of the cleaning equipment 100; by rotating the switching member 42 / 42' relative to the reversing shell 41 / 41', the second channel on the switching member 42 / 42' can be connected to the first docking port 411 / 411' and the third docking port 413 / 413', so that the suction device 3 is connected to the dirt collecting chamber 2, and external dirt can enter the dirt collecting chamber 2 through the suction port of the cleaning equipment 100, thereby realizing the cleaning of external dirt. The switching between the first connected state and the second connected state is more convenient, and there will be no state in which the suction device 3 is connected to or blocked with the base station 200 and the dirt collecting chamber 2, so the suction device 3 and the cleaning device 100 can be better protected.

[0069] In one embodiment, a first opening 421 , a second opening 422 and a third opening 423 are provided on the peripheral side wall of the switching member 42 / 42 ′, and the first shielding structure 424 and the second shielding structure 425 are also provided on the peripheral side wall of the switching member 42 / 42 ′.

[0070] In one embodiment, the first opening 421, the second opening 422 and the third opening 423 are arranged at intervals along the circumference of the switching member 42 / 42', and the first docking port 411 / 411', the second docking port 412 / 412' and the third docking port 413 / 413' are arranged at intervals along the circumference of the reversing housing 41 / 41'. Moreover, the first opening 421, the first shielding structure 424, the second opening 422, the second shielding structure 425 and the third opening 423 are arranged in sequence along a direction on the circumference of the switching member 42 / 42', and viewed in the cross-sectional direction toward the reversing shell 41 / 41', when in the first connected state, the first pair of interfaces 411 / 411' is opposite to the first opening 421, the second pair of interfaces 412 / 412' is opposite to the second opening 422, the third pair of interfaces 413 / 413' is misaligned with the third opening 423, and the second shielding structure 425 is arranged to block the third pair of interfaces 413 / 413', so that the first pair of interfaces 411 / 411' and the second pair of interfaces 412 / 412' are connected to each other through the first opening 421 and the second opening 422, so that the suction device 3 is connected to the base station 200, and the cleaning equipment 100 enters the sewage discharge state. When the switching member 42 / 42' is driven to rotate, the first opening 421 is rotated to be opposite to the part between the first docking port 411 / 411' and the second docking port 412 / 412', the third opening 423 is rotated to be opposite to the first docking port 411 / 411', the second opening 422 is rotated to be opposite to the third docking port 413 / 413', and the first shielding structure 424 is arranged to block the second docking port 412 / 412', so that the first docking port 411 / 411' and the third docking port 413 / 413' are connected through the second opening 422 and the third opening 423, and the second air duct is connected, that is, the suction device 3 is connected to the sewage collecting chamber 2, and the air duct switching structure 4 / 4' enters the second connected state. By rotating the switching member 42 / 42', different openings on the switching member 42 / 42' are relatively connected to the corresponding docking ports on the reversing housing 41 / 41' to adjust the working state of the air duct switching structure 4 / 4'. The two channels are isolated from each other, which is more convenient for flexible control.

[0071] Preferably, the angle between the first opening 421 and the third opening 423 is 72°, and the angle between the first opening 421 and the second opening 422 is 144°. In the radial direction along the switching member 42 / 42', the center line of the first shielding structure 424 coincides with the bisector of the angle between the first opening 421 and the second opening 422, and the center line of the second shielding structure 425 coincides with the bisector of the angle between the second opening 422 and the third opening 423.

[0072] In another embodiment of the air duct switching structure 4, combined with Figure 4 and Figure 5As shown, the first opening 421 and the third opening 423 are arranged at intervals along the circumference of the switching member 42, and the first opening 421 and the second opening 422 are arranged at intervals along the axial direction of the switching member 42; correspondingly, the first docking port 411 and the third docking port 413 are arranged at intervals along the circumference of the reversing shell 41, and the first docking port 411 and the second docking port 412 are arranged at intervals along the axial direction of the reversing shell 41, so that the spacing between the first docking port 411, the second docking port 412 and the third docking port 413 can be larger, and intervals can be formed along the axial direction of the reversing shell 41, so that each docking port can be better connected with other structures. Specifically, the second docking port 412 can be more conveniently connected to the base station 200, so that the third docking port 413 can be more conveniently connected to the sewage collection chamber 2, so that there is enough space to arrange the connecting structure, which can better meet the docking requirements of different devices.

[0073] At this time, in the first connected state, combined Figure 2 , Figure 5 and Figure 7 As shown, the first docking interface 411 is opposite to the first opening 421, the second docking interface 412 is opposite to the second opening 422, and the second shielding structure 425 blocks the third docking interface 413, and a first channel is formed between the first opening 421 and the second opening 422, so that when the first docking interface 411 is connected to the first opening 421 and the second docking interface 412 is connected to the second opening 422, the suction device 3 can be connected to the base station 200, and the third docking interface 413 connected to the sewage collecting chamber 2 is closed by the second shielding structure 425. When the suction device 3 is turned on, a negative pressure can be formed in the base station 200, so that the dirt in the sewage collecting chamber 2 can be sucked out through the base station 200. When in the second connected state, combined with Figure 3 , Figure 5 and Figure 6 As shown, the first pair of ports 411 and the third opening 423 are opposite, the third pair of ports 413 and the first opening 421 are opposite, and the first shielding structure 424 blocks the second pair of ports, the first opening 421 and the third opening 423 are connected to form the above-mentioned second channel, when the first pair of ports 411 and the third opening 423 are connected and connected, and the third pair of ports 413 and the first opening 421 are connected and connected, the suction device 3 can be connected to the dirt collection chamber 2, and the third opening 423 connected to the base station 200 is in a closed state under the action of the first shielding structure 424, so when the suction device 3 is turned on, negative pressure can be formed in the dirt collection chamber 2, so that external dirt can be sucked into the dirt collection chamber 2. The switching member 42 is driven to rotate by the reversing driving structure 43, so that different air ducts are connected to the suction device 3, thereby realizing the switching between the first connection state and the second connection state, which is simple to operate and easy to control.

[0074] The second shielding structure 425 is formed based on the portion between the first opening 421 and the third opening 423, and the first shielding structure 424 and the second opening 422 are arranged along the circumference of the switching member 42. The first shielding structure 424 and the second shielding structure 425 may be a part of the peripheral side wall of the switching member 42, or the first shielding structure 424 and the second shielding structure 425 may be a sheet structure fixed on the outer side of the peripheral side wall of the switching member 42.

[0075] Furthermore, if Figure 5 As shown in , the reversing housing 41 can be composed of two parts. The reversing housing 41 includes a first housing and a second housing that are detachably connected. The first housing and the second housing are connected and arranged along the axial direction. The first housing and the second housing are both roughly cylindrical and open at one end. The open end of the first housing and the open end of the second housing are connected to each other. The first docking port 411 and the third docking port 413 are arranged on the first housing, and the second docking port 412 is arranged on the second housing, so that after the switching member 42 is installed in the reversing housing 41, the first housing and the second housing can be completely fixed.

[0076] Moreover, the switching member 42 is also provided in two parts, and the switching member 42 is provided in a roughly cylindrical shape, and includes a first barrel section and a second barrel section connected to each other, and the first barrel section and the second barrel section form a rotation-stopping fit in the circumferential direction, so that when one of them rotates, the other can be driven to rotate together. The first opening 421 and the third opening 423 are provided on the first barrel section, and the second opening 422 is provided on the second barrel section, and the first barrel section is rotatably provided in the first shell, and the second barrel section is rotatably provided in the second shell, so that the assembly is more convenient, and a single barrel section can be replaced during maintenance, thereby reducing the maintenance cost.

[0077] Preferably, a sealing sheet or a flexible sealing piece may be provided on the side of the first shielding structure 424 and the second shielding structure 425 facing the reversing shell 41, and the sealing sheet or the flexible sealing piece can be sealed between the docking interface and the corresponding opening, thereby ensuring a more reliable seal, making the suction force generated by the suction device 3 more efficient, and thus improving work efficiency.

[0078] Preferably, if Figure 5As shown in, the reversing driving structure 43 includes a reversing driver 431, a driving worm 432 and a driving worm wheel 433, wherein the reversing driver 431 is connected to the driving worm 432, the driving worm 432 is meshed with the driving worm wheel 433, and the driving worm wheel 433 is connected to the switching member 42. The reversing driver 431 can be provided with a reversing driving motor, and the worm 432 is driven to rotate by the reversing driving motor, and the driving worm wheel 433 is driven to rotate, thereby driving the switching member 42 to rotate. Specifically, the rotating shaft of the driving worm wheel 433 is connected to the bottom of the first barrel section, and the first barrel section is driven to rotate by the rotation of the driving worm wheel 433, and the second barrel section is driven to rotate together, so that the opening on the switching member 42 can be shifted to be connected with the corresponding docking interface, and the switching between the first connected state and the second connected state is realized. Through the driving mode of the driving worm wheel 433 and the driving worm 432, the transmission accuracy is higher, and the working noise is smaller, so that the working noise of the entire cleaning device 100 is smaller.

[0079] In addition, the air duct switching structure 4 may also include a detection component and a control device, the control device is electrically connected to the detection component and the reversing driving structure 43, the detection component is used to detect the position state of the switching member 42, and the control device is used to control the working state of the reversing driving structure 43 according to the detection result of the detection component. The working state of the air duct switching structure 4 can be monitored in real time, thereby ensuring the accuracy of the working state of the cleaning device 100.

[0080] Specifically, the detection component includes a position sensor. Preferably, the position sensor includes a Hall element and a detection block. The detection block is sensed by the Hall element, thereby sending different detection signals to the control device. The control device controls the air duct switching structure 4 to work according to the detection signal.

[0081] Among them, the Hall element can be arranged on the reversing housing 41 and corresponding to the second docking port 412 and / or the third docking port 413, and the detection block is arranged on the switching member 42 and corresponding to the second opening 422 and / or the third opening 423. For example, when the Hall element is located at the second docking port 412 and the detection block is detected, it means that the second docking port 412 is connected to the second opening 422. At this time, the Hall element can send a first detection signal, and the control device determines that the air duct switching structure 4 / 4' is in the first connection state at this time according to the first detection signal. Alternatively, a Hall element is also arranged at the third docking port 413, and a detection block is arranged at the third opening 423. When the Hall element located at the third docking port 413 detects the detection block located at the third opening 423, a second detection signal can be sent, and the control device can determine that the air duct switching structure 4 is in the second connection state at this time according to the second detection signal, and then can control whether the reversing drive structure 43 works according to the demand. There are many settings and positions of the detection components, which are not described in detail here.

[0082] The arrangement of the reversing housing 41 / 41' and the switching member 42 / 42' is not limited to the above-mentioned one. In another embodiment, Figure 8 and Fig. 9 As shown, the second docking port 412' and the third docking port 413' can be arranged at intervals along the circumference of the reversing housing 41'. At this time, the switching member 42' may include a reversing shaft 44 and a reversing baffle 45 arranged on one side of the reversing shaft 44. The reversing driving structure 43' is connected to the reversing shaft 44 to drive the reversing shaft 44 to rotate, so that the reversing baffle 45 can rotate with the reversing shaft 44 as the rotating shaft. The reversing baffle 45 can respectively block the second docking port 412' and the third docking port 413', so that the first docking port 411' can be connected to the third docking port 413' and the second docking port 412', respectively, so as to be in the second connection state and the first connection state, respectively. The structure is simpler, and the reversing baffle 45 forms the above-mentioned first shielding structure 424 and the second shielding structure 425.

[0083] It is understandable that, in one embodiment, the second docking port 412' and the third docking port 413' may be located on both sides of the first docking port 411', respectively. By rotating the switching member 42', the switching member 42' may pass through the second docking port 412', the first docking port 411' and the third docking port 413' in sequence, or the switching member 42' may pass through the third docking port 413', the first docking port 411' and the second docking port 412' in sequence, so as to realize the switching between the first connected state and the second connected state. For example, when the cleaning device 100 is in the sewage discharge state, the reversing baffle 45 is at the third docking port 413', and the reversing shaft 44 is driven to rotate by the reversing driving structure 43' to drive the reversing baffle 45 to rotate from the third opening 423 through the first docking port 411 to the second docking port 412, thereby blocking the second docking port 412', so as to enter the sewage suction state in which the suction device 3 is connected to the sewage collecting chamber 2. The switching member 42' can pass through the second pair of interfaces 412', the first pair of interfaces 411' and the third pair of interfaces 413' in sequence, and can achieve blocking of any pair of interfaces, which is more flexible and diverse.

[0084] Preferably, combined Fig. 9 and Fig.10As shown, the second docking port 412' and the third docking port 413' may be located on the same side of the first docking port 411'. By rotating the switching member 42', the switching member 42' can be reciprocated and switched between the second docking port 412' and the third docking port 413'. For example, when the cleaning device 100 is in a cleaning state of sucking dirt, the switching member 42' is arranged to block the second docking port 412'. When the cleaning is completed, the switching member 42' can be driven to rotate in a clockwise direction by a first preset angle so that the switching member 42' is rotated to block the third docking port 413' to enter a sewage discharge state in which the suction device 3 is connected to the base station 200. The switching member 42' only switches between the second docking port 412' and the third docking port 413', and does not pass through the first docking port 411'. The rotation path is shorter, so the switching speed is faster.

[0085] Correspondingly, the configuration of the above-mentioned reversing driving structure 43' is also different. Fig. 9 As shown, the reversing driving structure 43 ′ is disposed outside the reversing housing 41 ′ and connected to one end of the reversing shaft 44 . The reversing driving structure 43 ′ may include a shielding driver 46 , which drives the reversing shaft 44 to rotate to achieve automatic movement of the reversing baffle 45 .

[0086] Moreover, the air duct switching structure 4' may also include a driving handle, wherein an adjustment groove is provided on one of the driving handle and the reversing shaft 44, wherein an adjustment protrusion which is plugged and matched with the adjustment groove is provided on the other. When the driving handle is rotated by an external force, the reversing rotation can be driven to rotate together under the cooperation of the adjustment groove and the adjustment protrusion, so that a stop fit is formed between the driving handle and the reversing shaft 44. When the reversing driving structure 43' fails to work normally, the driving handle can be rotated manually to drive the reversing shaft 44 and the reversing baffle 45 to rotate together, so as to realize the switching of the air duct switching structure 4' between the first connection state and the second connection state. The air duct switching structure 4' can be driven by two driving modes: manual drive and drive motor drive. When the reversing driving structure 43' fails to work normally, the working state can be switched by manual operation, which is more flexible and has a wider range of adaptability.

[0087] In this embodiment, if Figure 8As shown in the figure, the reversing shell 41' includes a cavity body and an extension part. The cavity body is roughly fan-shaped and cylindrical, and the interior is hollow. The extension part protrudes on one side of the cavity body. The first docking port 411', the second docking port 412' and the third docking port 413' are arranged in sequence along the circumference of the cavity body, and the extension part extends outward from the circumference of the first docking port 411' to form an interface suitable for docking with the suction device 3. The reversing baffle 45 is arranged on the inner side of the cavity body, and the reversing baffle 45 is provided with a through hole that passes through the circumference of the reversing shell 41'. When the reversing baffle 45 is in the second connected state, the first docking port 411' and the third docking port 413' can be connected through the through hole to ensure that the suction device 3 is connected to the dirt collecting chamber 2 of the cleaning equipment 100.

[0088] Furthermore, combined with Fig. 9 and Fig.10 As shown, the cavity body has a first inner wall 414, a second inner wall 415, and a transition wall 416 connecting the first inner wall 414 and the second inner wall 415, the first inner wall 414 and the third inner wall respectively form two side walls of a fan shape, the transition wall 416 is an arc-shaped fan-shaped wall, the first docking port 411 is arranged on the first inner wall 414, the second docking port 412' and the third docking port 413' are arranged on the transition wall 416, and the shape of the end face of the reversing baffle 45 facing away from the reversing shaft 44 is adapted to the shape of the transition wall 416, that is, the end face of the reversing baffle 45 facing the transition wall 416 is also arranged in an arc shape, so as to better block the second docking port 412' and the third docking port 413' arranged in an arc shape.

[0089] Moreover, the cavity body has a bottom wall connected to the first inner wall 414, the second inner wall 415 and one end of the transition wall 416, and also has a top wall that is detachably arranged with the first inner wall 414, the second inner wall 415 and the transition wall 416, the reversing shaft 44 is rotatably arranged on the top wall, and a guide cylinder is arranged on the cavity body. After the reversing shaft 44 is rotatably arranged on the top wall, the top wall cover with the switching member 42' installed is arranged on the first inner wall 414, the second inner wall 415 and the transition wall 416, and the reversing shaft 44 is rotatably arranged in the guide cylinder, so as to close the cavity body. The assembly of the switching member 42' is not limited to the internal space of the cavity body, and the assembly is more convenient, and the subsequent maintenance is also convenient to disassemble, and the maintenance cost is also lower.

[0090] Further, the air duct switching structure 4' also includes a limiting structure, and in the rotation direction, the limiting structure can limit the rotation direction of the switching member 42' to avoid the wrong rotation direction, resulting in connection failure. For example, when the switching member 42' is in the first connection state, it can be switched to the second connection state by rotating in the clockwise direction, and then the limiting structure can form a stop fit with the switching member 42' in the counterclockwise direction to prevent the switching member 42' from rotating in the counterclockwise direction. When the switching member 42' is in the second connection state, rotating the switching member 42' in the counterclockwise direction can reset the air duct switching structure 4' to the first connection state, and the limiting structure and the switching member 42' form a stop fit in the clockwise direction, thereby preventing the switching member 42' from continuing to rotate in the clockwise direction when it is in the first connection state, so as to ensure the adjustment stability of the switching member 42'. Among them, the limiting structure can be set as a stop protrusion, and the stop protrusion cooperates with the side wall of the switching member 42' to form a stop.

[0091] Specifically, for the reversing baffle 45, the reversing baffle 45 has a first stop wall and a second stop wall which are arranged in a direction away from each other along the circumference of the reversing shaft 44. When the switching member 42' is in the first connection state, the second stop wall and the second inner wall 415 form a stop fit to prevent the reversing baffle 45 from continuing to rotate in the direction from the second docking port 412' to the third docking port 413', to prevent the reversing baffle 45 from rotating too much and failing to completely close the third docking port 413', and to indicate that the reversing baffle 45 has rotated to the right position and can stop rotating. When the switching member 42' is in the second connection state, the first stop wall and the first inner wall 414 form a stop fit to prevent the reversing baffle 45 from continuing to rotate in the direction from the third docking port 413' to the second docking port 412', to prevent the reversing baffle 45 from rotating too much and failing to completely close the second docking port 412', and to indicate that the reversing baffle 45 has rotated to the right position and can stop rotating.

[0092] The material of the end of the reversing baffle 45 facing away from the reversing shaft 44, that is, the end of the reversing baffle 45 that closes the second docking interface 412 and the third docking interface 413, is an elastic material. The elastic material allows the reversing baffle 45 to be in closer contact with the second docking interface 412' and the third docking interface 413', and the sealing effect is better. Alternatively, a seal is adhered to the end of the reversing baffle 45 facing away from the reversing shaft 44. The seal is annularly arranged. The gap between the reversing baffle 45 and the second docking interface 412' and the third docking interface 413' can be closed by the seal to ensure a better sealing effect. The seal can be set as a sealing pad or a sealing ring, and the material of the seal can be an elastic material such as rubber or sponge.

[0093] Moreover, a Hall element may be provided on the first inner wall 414 and / or the second inner wall 415, and a detection block may be provided on the first stop wall and / or the second stop wall. When the first stop wall is rotated into place, the Hall element on the first inner wall 414 may detect the detection on the first stop wall, thereby sending a second detection signal to the control device to indicate that the air duct switching structure 4' is in the second connected state. When the second stop wall is rotated into place, the Hall element on the second inner wall 415 may detect the detection on the second stop wall, thereby sending a first detection signal to the control device to indicate that the air duct switching structure 4' is in the first connected state. Alternatively, the above-mentioned Hall element is provided corresponding to the second docking interface 412' and / or the third docking interface 413', and the detection block is provided on the reversing baffle 45. Similarly, the Hall element sends different detection signals to indicate that the air duct switching structure 4' is in different working states. Then, the control device controls the reversing driving structure 43' to work according to different detection signals, so that the reversing driving structure 43' can be stopped in time after the reversing baffle 45 rotates to the right position, which is more energy-saving and intelligent.

[0094] In addition, combined Figure 8 and Fig. 9 As shown, the cleaning device 100 is also provided with an air duct docking structure 5, through which the second docking interface 412' and the base station 200 can be connected. Specifically, the air duct docking structure 5 is provided with a first air guide port 51 connected to the second docking interface 412', and a second air guide port 52 connected to the first air guide port 51. The second air guide port 52 can be arranged on the outside of the cleaning device 100. When the cleaning device 100 is docked with the base station 200, the second air guide port 52 can be connected to the air duct on the base station 200.

[0095] In one embodiment, when the cleaning device 100 is also provided with a clean water tank, a guide port 53 may be further provided on the air duct docking structure 5, and the guide port 53 is connected to the clean water tank, and preferably, the guide port 53 and the second air guide port 52 are located on the same side. When the cleaning device 100 is docked with the base station 200, the guide port 53 may be connected to a water supply device (such as a base station clean water tank or a tap water pipe docking joint) on the base station 200, so that the base station 200 can realize automatic water supply to the clean water tank on the cleaning device 100, and the air duct docking structure 5 makes the structure of the air duct and water supply channel in the entire cleaning device 100 more compact, the layout is more optimized, and the space occupied is smaller. Moreover, only a storage cavity for storing dirt may be provided on the base station 200, without the need to provide a base station clean water tank, and the structure is simpler.

[0096] Example 2

[0097] In this embodiment, the reversing drive structure is a non-electric drive structure.

[0098] In one embodiment, the reversing drive structure can be a grip outside the extension device body 1, and the grip can be a knob structure. The air duct switching structure switches between the first connection state and the second connection state in response to the user's force on the grip.

[0099] In another example, the reversing drive structure may be a movable part, which may be a mechanical structure having a reciprocating motion state such as a connecting rod or a paddle. The movable part is arranged in the device body 1, or extends to the outside of the device body 1. When the cleaning device 100 is docked with the base station 200, the movable part abuts against the base station 200, and presents a first state under the action of the abutment force, and in the first state, the air duct switching structure is driven to present a first connected state, so that the suction device 3 can act on the base station 200. When the cleaning device 100 is separated from the base station 200, the abutment force disappears, and the movable part is reset to the second state under the influence of the reset spring and / or its own gravity, and in the second state, the air duct switching structure is driven to present a second connected state, so that the suction device 3 can act on the dirt collecting chamber 2.

[0100] In this embodiment, the cleaning device is provided with an air duct switching structure, so that the suction device of the cleaning device can be connected to the dirt collecting chamber on the cleaning device and the base station, and the two functions of sucking and discharging dirt can be realized by a single motor, which greatly simplifies the structure of the cleaning system and reduces production costs. In addition, the state of the air duct switching structure is adjusted under non-electric drive, which has the advantages of easy operation and reduced costs.

[0101] Obviously, the above described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, ordinary technicians in this field can make other different forms of changes or modifications without creative work, which should fall within the scope of protection of the utility model.

Claims

1. A cleaning system, characterized in that: include: Base station (200); A cleaning device (100) comprising a suction device (3); An air duct switching structure (4 / 4') movably arranged on the base station (200) or the cleaning device (100); A reversing drive structure (43 / 43') connected to the air duct switching structure (4 / 4') and used to drive the air duct switching structure (4 / 4') to move; When the cleaning device (100) is docked with the base station (200), the air duct switching structure (4 / 4') can connect the suction device (3) and the base station (200), so that the suction force generated by the suction device (3) enters the base station (200) to suck the dirt into the base station (200).

2. The cleaning system according to claim 1, characterized in that A first air duct is connected between the suction device (3) and the base station (200), and the reversing drive structure (43 / 43') drives the air duct switching structure (4 / 4') to move, so that the air duct switching structure (4 / 4') has a first connected state that keeps the first air duct in connection.

3. The cleaning system according to claim 2, characterized in that The cleaning device (100) comprises a dirt collecting chamber (2), and the reversing drive structure (43 / 43') drives the air duct switching structure (4 / 4') to move, so that the air duct switching structure (4 / 4') can connect the suction device (3) and the dirt collecting chamber (2).

4. The cleaning system according to claim 3, characterized in that A second air duct is connected between the suction device (3) and the dirt collecting chamber (2), and the reversing drive structure (43 / 43') drives the air duct switching structure (4 / 4') to move, so that the air duct switching structure (4 / 4') has a second connected state that keeps the second air duct in connection.

5. The cleaning system according to claim 4, characterized in that In the first connected state, the reversing drive structure (43 / 43') can drive the air duct switching structure (4 / 4') to move to block the second air duct; and / or, In the second connected state, the reversing driving structure (43 / 43') can drive the air duct switching structure (4 / 4') to move to block the first air duct.

6. The cleaning system according to claim 1, characterized in that The cleaning device (100) comprises a dirt collecting chamber (2), a first air duct in communication between the suction device (3) and the base station (200), and a second air duct in communication between the suction device (3) and the dirt collecting chamber (2); The air duct switching structure (4 / 4') has a first connection state in which the first air duct is connected and the second air duct is blocked, and a second connection state in which the second air duct is connected and the first air duct is blocked; The reversing driving structure (43 / 43') drives the air duct switching structure (4 / 4') to move so as to switch between the first connecting state and the second connecting state.

7. The cleaning system according to claim 6, characterized in that The air duct switching structure (4 / 4') is arranged to rotate, and the reversing drive structure (43 / 43') drives the air duct switching structure (4 / 4') to rotate a first preset angle along a first direction, so that the air duct switching structure (4 / 4') can switch from the first connecting state to the second connecting state, and the reversing drive structure (43 / 43') drives the air duct switching structure (4 / 4') to rotate a second preset angle along a second direction to switch from the second connecting state to the first connecting state.

8. The cleaning system according to claim 7, characterized in that The first direction and the second direction are in the same direction or in opposite directions; and / or, the first preset angle and the second preset angle are the same or different.

9. A cleaning system, characterized in that: include: Base station (200); A cleaning device (100) comprising a suction device (3); An air duct switching structure (4 / 4') is movably arranged on the base station (200) and / or the cleaning device (100), and has a first connection state and a second connection state; The reversing drive structure (43 / 43') is connected to the air duct switching structure (4 / 4') for driving the air duct switching structure (4 / 4') to switch between the first connected state and the second connected state, so that the air duct switching structure (4 / 4') can selectively connect the suction device (3) and the base station (200).

10. The cleaning system according to claim 9, characterized in that The air duct switching structure (4 / 4') is arranged on the cleaning device (100), and the cleaning device (100) includes a dirt collecting chamber (2). When in the first connected state, the air duct switching structure (4 / 4') connects the suction device (3) and the base station (200), and when in the second connected state, the air duct switching structure (4 / 4') connects the suction device (3) and the dirt collecting chamber (2).

11. The cleaning system according to claim 10, characterized in that When in the first connected state, the air duct switching structure (4 / 4') blocks the suction device (3) and the dirt collecting chamber (2); when in the second connected state, the air duct switching structure (4 / 4') blocks the suction device (3) and the base station (200).

Images