Air duct switching structure and cleaning equipment

Abstract

The utility model discloses an air duct switching structure and cleaning equipment. The air duct switching structure comprises a hollow reversing body and an adjusting component arranged on the reversing body, the reversing body is provided with a first butt-joint opening, a second butt-joint opening and a third butt-joint opening which communicate with an inner cavity of the reversing body, and the first butt-joint opening communicates with the second butt-joint opening to form a first communicating channel; the first butt-joint opening and the third butt-joint opening are communicated to form a second communication channel, and the adjusting component can adjust the first communication channel and the second communication channel, so that when one of the first communication channel and the second communication channel is in a closed state, the other one is in a closed state. According to the air duct switching structure, an independent fan does not need to be arranged on the base station for self-cleaning of the cleaning equipment, that is, the suction device on the cleaning equipment can be used for sucking dirt and cleaning the dirt collecting cavity, so that the base station is simpler in structure and lower in cost, and the use experience feeling of a user can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning tools, and in particular to an air duct switching structure and a cleaning device. Background Art

[0002] 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 can be cleaned up together to ensure that the cleaning equipment has enough cleaning working time. When the cleaning equipment is removing dirt, the suction force for cleaning 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 user's purchase and use costs will also increase. In addition, the cleaning equipment needs to be provided with a dirt collecting channel for sucking in dirt and a sewage discharge channel for discharging stains in the sewage collecting chamber. There are too many pipes or passages inside the cleaning equipment, and the structure is complicated, which is not conducive to the assembly and maintenance of the cleaning equipment. Utility Model Content

[0003] Therefore, the technical problem to be solved by the present invention is that the cleaning method of the dirt collecting chamber on the traditional cleaning equipment makes the structures of the cleaning equipment and the base station more complicated, which is not conducive to assembly and maintenance, and will increase the user's use cost.

[0004] In order to solve the above technical problems, the utility model provides an air duct switching structure, comprising:

[0005] The reversing body is hollow and is provided with a first pair of interfaces, a second pair of interfaces and a third pair of interfaces connected to its inner cavity, the first pair of interfaces and the second pair of interfaces are connected to form a first communication channel, and the first pair of interfaces and the third pair of interfaces are connected to form a second communication channel;

[0006] The adjusting component is arranged on the reversing body, and the adjusting component can adjust the first connecting passage and the second connecting passage so that when one of them is in a passage state, the other one is in a closed state.

[0007] Optionally, the adjusting component is movably arranged in the reversing body, and the adjusting component moves relative to the reversing body to have a first working state in which the third pairing interface is closed and the first pairing interface is connected to the second pairing interface, and a second working state in which the second pairing interface is closed and the first pairing interface is connected to the third pairing interface.

[0008] Optionally, the adjusting component is rotatably disposed in the reversing body, and the adjusting component rotates to switch between the first working state and the second working state.

[0009] Optionally, the adjusting component is provided with a first opening, a second opening, a third opening, a first shielding structure and a second shielding structure;

[0010] When the adjusting component is in the first working state, the first opening is connected to the first pair of interfaces, the second opening is connected to the second pair of interfaces, and the second shielding structure is arranged to block the third pair of interfaces;

[0011] When the adjusting component is in the second working state, the third opening is connected to the third pair of interfaces, the second opening is connected to the first pair of interfaces, and the first shielding structure is arranged to block the second pair of interfaces.

[0012] Optionally, the first pair of interfaces, the second pair of interfaces and the third pair of interfaces are arranged at intervals along the circumference of the reversing body; the first opening, the second opening and the third opening are arranged at intervals along the circumference of the adjusting component.

[0013] Optionally, the first pair of interfaces and the second pair of interfaces are arranged at intervals along the circumference of the reversing body, and the first pair of interfaces and the third pair of interfaces are arranged at intervals along the axial direction of the reversing body; the first opening and the second opening are arranged at intervals along the circumference of the adjusting component, and the first opening and the third opening are arranged at intervals along the axial direction of the adjusting component.

[0014] Optionally, the first shielding structure, the first opening and the second opening are arranged in sequence along the circumference of the adjusting component; and / or,

[0015] The second shielding structure and the third opening are arranged in sequence along the circumference of the adjusting component.

[0016] Optionally, the reversing body comprises a first shell and a second shell connected to each other, the first docking port and the second docking port are arranged on the first shell, and the third docking port is arranged on the second shell;

[0017] The adjusting component includes a first barrel section and a second barrel section connected to each other, the first barrel section is rotatably disposed in the first shell, the first opening and the second opening are disposed on the first barrel section, the second barrel section is rotatably disposed in the second shell, and the third opening is disposed on the second barrel section.

[0018] Optionally, the air duct switching structure further includes:

[0019] The reversing driving component is drivingly connected to the adjusting component and is used to drive the adjusting component to move so as to adjust the first communicating channel and the second communicating channel.

[0020] Optionally, the reversing drive component includes:

[0021] Reversing drive;

[0022] A driving worm connected to the reversing drive;

[0023] A driving worm wheel is meshed with the driving worm and connected with the adjusting component.

[0024] A duct switching structure, comprising:

[0025] The reversing body has radial and axial directions, and a first pairing interface and a second pairing interface communicating with the inner cavity of the reversing body are provided on the outer peripheral surface of the reversing body;

[0026] The adjusting component is arranged on the reversing body, and the adjusting component can make the first pair of ports and the second pair of ports communicate with each other along the radial direction or the axial direction to form a first communicating channel.

[0027] Optionally, a third docking port is further provided on the outer peripheral surface of the reversing body;

[0028] The adjusting component can make the first pair of ports communicate with the third pair of ports in a radial direction or an axial direction to form a second communication channel.

[0029] Optionally, the adjusting component is movably disposed in the reversing body and moves relative to the reversing body;

[0030] Wherein, the regulating component can enable the air duct switching structure to have a first working state of opening the first connecting channel and closing the second connecting channel, and enable the air duct switching structure to have a second working state of closing the first connecting channel and opening the second connecting channel.

[0031] Optionally, the air duct switching structure further includes:

[0032] The reversing driving component is drivingly connected to the adjusting component and is used for driving the adjusting component to move.

[0033] The utility model also provides a cleaning device, comprising the above-mentioned air duct switching structure.

[0034] The technical solution provided by the utility model has the following advantages:

[0035] The air duct switching structure provided by the utility model includes a reversing body and an adjusting component, wherein a first pair of interfaces, a second pair of interfaces and a third pair of interfaces are formed on the reversing body. The adjusting component can be used to make the first connecting channel connecting the first pair of interfaces and the second pair of interfaces, and the second connecting channel connecting the first pair of interfaces and the third pair of interfaces in a passage state, while the other is in a blocked state, so as to change the flow path of external gas or liquid when flowing through the air duct switching structure, so that the gas or liquid can be transported from the first connecting channel or the second connecting channel. When the second pair of interfaces and the third pair of interfaces of the air duct switching structure are connected to different external devices, the gas or liquid can be better transmitted to different external devices to better realize the switching of different states of the equipment.

[0036] Specifically, when the air duct switching structure is applicable to the cleaning equipment, the first pair of interfaces can be connected to the suction device on the cleaning equipment, the second pair of interfaces can be connected to the dirt collecting chamber on the cleaning equipment, and the third pair of interfaces is suitable for being connected to the base station when the cleaning equipment is docked with the base station; and then the connecting path can be switched by the adjusting component, so that when the cleaning equipment needs to suck dirt (such as performing dirt suction work, self-cleaning, etc.), the first pair of interfaces and the second pair of interfaces are connected by the adjusting component, and when the suction device is working, a negative pressure is formed in the dirt collecting chamber through the suction device, thereby sucking external dirt into the dirt collecting chamber; when the cleaning equipment is docked with the base station, the first pair of interfaces and the third pair of interfaces are connected by the adjusting component, so that the suction device is connected to the base station, and when the suction device is working, a negative pressure can be formed in the base station, so as to suck the dirt in the dirt collecting chamber into the base station, thereby cleaning the dirt collecting chamber. The air duct switching structure makes the internal structure layout of the cleaning equipment simpler and is more convenient for the assembly and maintenance of the cleaning equipment. There is no need to set up a separate fan on the base station for self-cleaning of the cleaning equipment. That is, the suction device on the cleaning equipment can both suck out the dirt and clean the dirt collecting chamber, making the structure of the base station simpler and the cost lower, thereby reducing the user's usage cost and improving the user's usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] 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.

[0038] Figure 1 A schematic structural diagram of an embodiment of an air duct switching structure provided by the utility model;

[0039] Figure 2 for Figure 1 A structural schematic diagram of the air duct switching structure from another perspective;

[0040] Figure 3 for Figure 1 A schematic diagram of an exploded structure of the air duct switching structure;

[0041] Figure 4 for Figure 1 A cross-sectional structural schematic diagram of the air duct switching structure (when in the second working state);

[0042] Figure 5 for Figure 1 Another cross-sectional structural schematic diagram of the air duct switching structure (when in the first working state);

[0043] Figure 6 for Figure 1 Another cross-sectional structural schematic diagram of the air duct switching structure (when in the first working state) described in .

[0044] Description of reference numerals:

[0045] 100-air duct switching structure; 1-reversing body; 11-first shell; 111-first pair of interfaces; 112-second pair of interfaces; 12-second shell; 121-third pair of interfaces; 2-adjusting component; 211-first barrel section; 2111-first opening; 2112-second opening; 2113-first shielding structure; 212-second barrel section; 2121-third opening; 2122-second shielding structure; 3-reversing drive component; 31-reversing drive; 32-driving worm; 33-driving worm wheel. DETAILED DESCRIPTION

[0046] 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.

[0047] 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.

[0048] 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.

[0049] The utility model provides an air duct switching structure 100, which can be used to switch the flow path of gas or liquid. Among them, the air duct switching structure 100 can be applied to transmission equipment, decontamination equipment, or cleaning equipment for conveying gas or liquid. For the convenience of description, the specific structure of the air duct switching structure 100 will be described below by taking the application of the air duct switching structure 100 in cleaning equipment as an example, and other equipment can refer to it for adaptive implementation.

[0050] Specifically, see Figures 1 to 3 The air duct switching structure 100 includes a reversing body 1 and an adjusting component 2 arranged on the reversing body 1, wherein the reversing body 1 is hollow to form an inner cavity, and a first docking port 111, a second docking port 112 and a third docking port 121 are opened thereon, and the first docking port 111, the second docking port 112 and the third docking port 121 are all connected to the inner cavity of the reversing body 1, a first connecting channel that can be connected is formed between the first docking port 111 and the second docking port 112, and a second connecting channel that can be connected is formed between the first docking port 111 and the third docking port 121. The adjusting component 2 can adjust the first connecting channel and the second connecting channel, so that when one of them is in a passage state, the other is in a closed state, so as to keep one of the channels in a conducting state and the other in a blocked state.

[0051] In this embodiment, the first connecting channel connecting the first docking port 111 and the second docking port 112, and the second connecting channel connecting the first docking port 111 and the third docking port 121 can be in a passage state through the adjusting component 2, while the other one is in a blocked state, so that the flow path of the external gas or liquid when flowing through the air duct switching structure 100 can be changed, so that the gas or liquid can be transported from the first connecting channel or the second connecting channel according to the demand. When the second docking port 112 and the third docking port 121 of the air duct switching structure 100 are connected to different external devices, the gas or liquid can be better transmitted to the different external devices to better realize the switching of different states of the device.

[0052] Specifically, when the air duct switching structure 100 is applied to the cleaning device, the first pair of interfaces 111 can be connected to the suction device on the cleaning device, the second pair of interfaces 112 can be connected to the dirt collection chamber on the cleaning device, and the third pair of interfaces 121 is suitable for being connected to the base station when the cleaning device is docked with the base station, and the connecting path can be switched through the adjusting component 2. When the cleaning device needs to suck dirt, the first pair of interfaces 111 and the second pair of interfaces 112 are connected through the adjusting component 2, and when the suction device is working, the suction device can form a negative pressure in the dirt collection chamber to suck the external dirt into the dirt collection chamber; when the cleaning device is docked with the base station, the first pair of interfaces 111 and the third pair of interfaces 121 can be connected through the adjusting component 2 to connect the suction device and the base station, and when the suction device is working, a negative pressure can be formed in the base station to suck the dirt in the dirt collection chamber into the base station, so as to clean the dirt collection chamber. The air duct switching structure 100 makes the internal structure layout of the cleaning equipment simpler and is more convenient for the assembly and maintenance of the cleaning equipment. There is no need to set up a separate fan on the base station for self-cleaning of the cleaning equipment. That is, the suction device on the cleaning equipment can perform both sewage suction and cleaning of the sewage collecting chamber, which makes the structure of the base station simpler and the cost lower, thereby improving the user experience.

[0053] It is understandable that there are many ways to switch the first communication channel and the second communication channel. In one embodiment, the first communication channel and the second communication channel can be two independent channels, and the first communication channel and the second communication channel can be opened and closed independently to switch the airflow path.

[0054] Specifically, the first connecting channel and the second connecting channel can be respectively set as two conveying pipes, which are respectively connected to the first docking port 111 and the second docking port 112, and the first docking port 111 and the third docking port 121, thereby realizing two conveying paths, and then the opening and closing of the two conveying pipes can be controlled by valves to realize the switching of the conveying channels.

[0055] Of course, the arrangement and formation of the first communication channel and the second communication channel are not limited to the above. The first communication channel and the second communication channel can also be formed inside the reversing body 1 and be integrally arranged with the reversing body 1. Specifically, by arranging guide ribs in the inner cavity of the reversing body 1, the first communication channel and the second communication channel are respectively enclosed by the guide ribs, so that fewer assembly parts are required and assembly is more convenient.

[0056] Moreover, there are many ways for the adjustment component 2 to adjust the opening and closing of the first communication channel and the second communication channel. In one embodiment, the adjustment component 2 can be set as a cover plate. Specifically, a cover plate can be set in the first communication channel and the second communication channel, or at the first docking port 111, the second docking port 112 and the third docking port 121. By controlling the opening and closing of the corresponding cover plates, the opening and closing of the first communication channel and the second communication channel can be achieved. Each channel can be controlled independently, and the operation is more flexible. Among them, the specific way to control the opening and closing of the cover plate is relatively simple and will not be described in detail here.

[0057] In order to better reduce the number of moving parts, the adjustment of the adjustment component 2 is simpler. Preferably, the adjustment component 2 can be movably arranged in the reversing body 1, and the first connecting channel and the second connecting channel can be respectively connected by the movement of the adjustment component 2 relative to the reversing body 1. Specifically, the adjustment component 2 moves relative to the reversing body 1 to have a first working state of closing the third docking port 121 and connecting the first docking port 111 and the second docking port 112, and a second working state of closing the second docking port 112 and connecting the first docking port 111 and the third docking port 121.

[0058] By moving the adjusting component 2, the third docking port 121 is closed, and the first docking port 111 and the second docking port 112 are connected, so that the suction device connected to the first docking port 111 and the dirt collection chamber connected to the second docking port 112 are connected, and the suction effect formed by the suction device forms a negative pressure in the dirt collection chamber, and then the external dirt can be sucked into the dirt collection chamber under the negative pressure of the dirt collection chamber, so as to achieve the cleaning and other dirt suction work of the cleaning device. The second docking port 112 can also be blocked by moving the adjusting component 2, and the first docking port 111 and the third docking port 121 are connected, so that the suction device connected to the first docking port 111 and the base station connected to the third docking port 121 are connected, and the suction device forms a negative pressure in the base station, and then when the base station is connected to the dirt collection chamber (or the cleaning tank of the base station), the dirt in the dirt collection chamber (or the cleaning tank of the base station) can be sucked into the base station through the base station, so as to achieve self-cleaning of the cleaning device. Moreover, through the movement of the adjusting component 2, the first connecting channel can be connected and the second connecting channel can be blocked at the same time. Compared with the method of independently controlling the two channels, the structure of the adjusting component 2 is obviously simpler, and the operation and control are more convenient, and it can better ensure that the two channels are opened one by one, thereby avoiding the two channels being opened or closed at the same time, causing damage to the suction device and the entire cleaning equipment.

[0059] Further, in one embodiment, the adjusting component 2 may have a linear reciprocating stroke. The adjusting component 2 is moved relative to the reversing body 1 to switch between the first working state and the second working state. Specifically, the adjusting component 2 may include an adjusting block, on which a first air duct and a second air duct may be provided. When the adjusting block moves along the first direction, and the first air duct is connected to the first docking port 111 and the second docking port 112, and the adjusting block blocks the third docking port 121, the air duct switching structure 100 enters the first working state; when the adjusting block moves along the first direction, and the second air duct is connected to the first docking port 111 and the third docking port 121, and the adjusting block blocks the second docking port 112, the air duct switching structure 100 enters the second working state. By moving the adjusting block, the switching of the working state of the air duct switching structure 100 can be quickly realized.

[0060] Preferably, the adjusting component 2 is rotatably arranged in the reversing body 1. Compared with the linear movement mode, when the adjusting component 2 is rotatably arranged, the adjusting component 2 does not need to move the entire component, so the space occupied in the reversing body 1 is smaller, so that the volume of the reversing body 1 can be made smaller, and thus the volume of the entire air duct switching structure 100 is smaller.

[0061] In one embodiment, if Figure 3 As shown in , the adjusting component 2 may be a cylindrical structure rotatably arranged inside the reversing body 1, wherein the reversing body 1 may also be roughly cylindrical, hollow inside and closed at both ends, and the first docking port 111, the second docking port 112 and the third docking port 121 are arranged on the peripheral side wall of the reversing body 1 and are all connected. The shape of the adjusting component 2 matches the shape of the reversing body 1, and is also roughly cylindrical and rotatably arranged inside the reversing body 1, and the rotating shaft of the adjusting component 2 is arranged along the axial direction of the reversing body 1. By rotating the adjusting component 2, when the third docking port 121 is blocked, the first docking port 111 and the second docking port 112 are connected, and when the second docking port 112 is blocked, the first docking port 111 and the third docking port 121 are connected, thereby switching between the first working state and the second working state. The shape of the adjusting component 2 is matched with the shape of the reversing body 1, so that the structure is more compact, and the adjusting component 2 moves relative to the reversing body 1 by rotating, and does not occupy too much axial space of the reversing body 1, so that the reversing body 1 is smaller in volume, and thus the volume of the air duct switching structure 100 is smaller, and the structure of the adjusting component 2 can be simpler, so that the manufacturing cost is lower.

[0062] Furthermore, combined with Figure 3 and Figure 4As shown, a first opening 2111, a second opening 2112, a third opening 2121, a first shielding structure 2113 and a second shielding structure 2122 are provided on the adjusting component 2. When the adjusting component 2 is in the first working state, the first opening 2111 and the first docking interface 111 are connected, the second opening 2112 and the second docking interface 112 are connected, and the second shielding structure 2122 is arranged to block the third docking interface 121; when the adjusting component 2 is in the second working state, the second opening 2112 and the first docking interface 111 are connected, the third opening 2121 and the third docking interface 121 are connected, and the first shielding structure 2113 is arranged to block the second docking interface 112. Among them, the first opening 2111, the second opening 2112, and the third opening 2121 are all connected to the inner cavity of the adjusting component 2. When the first opening 2111 and the first docking port 111 are connected, and the second opening 2112 and the second docking port 112 are connected, since the first opening 2111 and the second opening 2112 are in a conductive state, the first docking port 111 and the second docking port 112 are connected; similarly, when the second opening 2112 and the first docking port 111 are connected, and the third opening 2121 and the third docking port 121 are connected, since the second opening 2112 and the third opening 2121 are in a connected state, the first docking port 111 and the third docking port 121 are connected. Moreover, when the first communication channel is in conduction, the third docking port 121 can be blocked by the adjusting component 2, and the gas cannot flow from the third opening 2121 to the third docking port 121, so that negative pressure cannot be formed on the base station side; when the second communication channel is in conduction, the second docking port 112 can be blocked by the adjusting component 2, and the gas cannot flow from the first opening 2111 to the second docking port 112, so that negative pressure cannot be formed in the dirt collecting chamber. In this embodiment, by directly opening an opening on the adjusting component 2, different channels are connected through the opening to switch different communication channels, and the structure is simpler and the adjustment is convenient.

[0063] The reversing body 1 has a radial direction and an axial direction, and the first and second docking ports 111 and 112 are arranged on the outer peripheral surface of the reversing body 1. The first and second docking ports 111 and 112 can be arranged at intervals along the axial direction or circumferential direction of the reversing body 1. The first and second docking ports 111 and 112 are connected along the radial direction or axial direction by moving the adjusting component 2 to form the above-mentioned first connecting channel. When the first and second docking ports 111 and 112 are connected along the radial direction, that is, the first connecting channel is arranged along the radial direction, it can effectively reduce the path of the air duct, improve the suction efficiency, and reduce the energy loss of the suction device; or, when the first and second docking ports 111 and 112 are connected along the axial direction, that is, the first connecting channel is arranged along the axial direction, so that the distance between the docking point of the suction device and the sewage collecting chamber is farther, so that when docking with the sewage collecting chamber, the docking space is larger and it is easier to perform the assembly operation.

[0064] Furthermore, the third docking port 121 is also arranged on the outer peripheral surface of the reversing body 1, and the first docking port 111 and the third docking port 121 can be connected in the radial direction or in the axial direction by moving the adjusting component 2 to form the second connecting channel mentioned above. Similarly, when the first docking port 111 and the third docking port 121 are connected in the radial direction, that is, the second connecting channel is arranged in the radial direction, the path of the air duct can be effectively reduced, the suction efficiency can be improved, and the energy loss of the suction device can be reduced; or, when the first docking port 111 and the third docking port 121 are connected in the axial direction, that is, the second connecting channel is arranged in the axial direction, the distance between the docking point of the suction device and the base station is farther, so that when docking with the base station, the docking space is larger and it is easier to perform assembly operations.

[0065] Specifically, in one embodiment, the first docking port 111, the second docking port 112 and the third docking port 121 are arranged at intervals along the circumference of the reversing body 1, and the first opening 2111, the second opening 2112 and the third opening 2121 are arranged at intervals along the circumference of the adjusting component 2, that is, the first connecting channel and the second connecting channel are both arranged in the radial direction. In the cross-sectional direction of the reversing body 1, when in the first working state, the first opening 2111 is opposite to the first docking port 111, the second opening 2112 is opposite to the second docking port 112, the third opening 2121 is misaligned with the third docking port 121, and the peripheral side wall of the adjusting component 2 is located between the third opening 2121 and the second opening 2112 to form the above-mentioned first shielding structure 2113 and the second shielding structure 2122. For example, the second opening 2112, the first opening 2111 and the third opening 2121 are arranged in sequence along the clockwise direction of the adjusting component 2. When the adjusting component 2 switches from the first working state to the second working state, the adjusting component 2 can be rotated in the clockwise direction so that the first opening 2111 is rotated to be opposite to the part between the first docking port 111 and the third docking port 121, the second opening 2112 is rotated to be opposite to the first docking port 111, the third opening 2121 is rotated to be opposite to the third docking port 121, and the first shielding structure is opposite to the second docking port 112, thereby entering the second working state.

[0066] Preferably, the second opening 2112, the first opening 2111, the third opening 2121, the second shielding structure 2122 and the first shielding structure 2113 are arranged in sequence along the same circumferential direction. The angle between the second opening 2112 and the first opening 2111 is 72°, the angle between the first opening 2111 and the third opening 2121 is 72°, the angle between the center line of the second shielding structure 2122 and the third opening 2121, and the angle between the center line of the first shielding structure 2113 and the second opening 2112 are all 72°. In the direction of rotation, a limiting structure can be provided, and the limiting structure can limit the rotation direction of the adjusting component 2 to avoid incorrect rotation direction and failure of connection. For example, when the adjusting component 2 is in the first working state, it can be switched to the second working state by rotating it in the clockwise direction. In the counterclockwise direction, the limiting structure can form a stop fit with the adjusting component 2 to prevent the adjusting component 2 from rotating in the counterclockwise direction. Moreover, when the adjusting component 2 is in the second working state, it can be reset to the first working state by rotating it in the counterclockwise direction. The limiting structure and the adjusting component 2 can form a stop fit in the clockwise direction, thereby preventing the adjusting component 2 from continuing to rotate in the clockwise direction when in the second working state, so as to ensure the adjustment stability of the adjusting component 2.

[0067] In another embodiment, Figure 3 As shown in , the first docking port 111 and the second docking port 112 are arranged at intervals along the circumference of the reversing body 1, and the first docking port 111 and the third docking port 121 are arranged at intervals along the axial direction of the reversing body 1; correspondingly, the first opening 2111 and the second opening 2112 are arranged at intervals along the circumference of the adjusting component 2, and the first opening 2111 and the third opening 2121 are arranged at intervals along the axial direction of the adjusting component 2, that is, the first connecting channel is arranged radially, and the second connecting channel is arranged axially, so that the spacing between the first docking port 111, the second docking port 112 and the third docking port 121 can be larger, and a gap can be formed along the axial direction of the reversing body 1, so that each docking port can be better connected with the external structure. For example, the second docking port 112 can be more conveniently connected to the sewage collection chamber, and the third docking port 121 can be more conveniently connected to the base station, so that there is enough space to arrange the connecting structure, which can better meet the docking requirements of different devices.

[0068] Furthermore, combined with Figures 3 to 6As shown, the first shielding structure 2113 can be specifically an arc-shaped sheet structure, the first shielding structure 2113 is formed on the peripheral side wall of the adjusting component 2, and the first shielding structure 2113, the first opening 2111 and the second opening 2112 are arranged in sequence along the circumference of the adjusting component 2. When in the first working state, the first shielding structure 2113 and the first docking interface 111 and the second docking interface 112 are all staggered. After the adjusting component 2 rotates a certain angle, the second opening 2112 can be opposite to the first docking interface 111, and the first shielding structure 2113 is set to block the second docking interface 112. Compared with the previous embodiment, the rotation angle of the adjusting component 2 can obviously have a larger setting range of the rotation angle, so that the adjustment is more flexible.

[0069] Similarly, combining Figure 3 , Figure 4 and Figure 6 As shown, the second shielding structure 2122 is also provided in an arc-shaped sheet structure to be formed on the peripheral side wall of the adjusting component 2. The second shielding structure 2122 and the third opening 2121 are arranged in sequence along the circumference of the adjusting component 2. The first opening 2111 and the third docking interface 121 can be connected through the third opening 2121, and the first opening 2111 and the third docking interface can be blocked through the second shielding structure 2122 to switch between the first working state and the second working state. The third docking interface 121 has larger space on both sides along the circumference of the adjusting component 2, which can be better connected with the base station.

[0070] Furthermore, the reversing body 1 can be composed of two parts, the reversing body 1 includes a first shell 11 and a second shell 12, the first shell 11 and the second shell 12 are connected and arranged along the axial direction, the first shell 11 and the second shell 12 are both roughly cylindrical, and one end is open, the open end of the first shell 11 and the open end of the second shell 12 are connected to each other, the first docking port 111 and the second docking port 112 are arranged on the first shell 11, and the third docking port 121 is arranged on the second shell 12, so that after the adjusting component 2 is installed in the reversing body 1, the first shell 11 and the second shell 12 can be completely fixed.

[0071] Preferably, a sealing sheet or a flexible sealing piece may be provided on the side of the first shielding structure 2113 and the second shielding structure 2122 facing the reversing body 1, and the sealing sheet or the flexible sealing piece can be sealed between the opening and the corresponding docking interface, thereby ensuring a more reliable seal, making the suction force generated by the suction device more efficient, and thus improving work efficiency.

[0072] Among them, Figure 3As shown in , the adjusting component 2 is also provided in two parts, and the adjusting component 2 includes a first barrel section 211 and a second barrel section 212 connected to each other, and the first barrel section 211 and the second barrel section 212 form a non-rotating fit in the circumferential direction, so that when one of them rotates, the other can be driven to rotate together. The first opening 2111 and the second opening 2112 are provided on the first barrel section 211, and the third opening 2121 is provided on the second barrel section 212, and the first barrel section 211 is rotatably provided in the first shell 11, and the second barrel section 212 is rotatably provided in the second shell 12, so that the assembly is more convenient, and a single barrel section can be replaced during maintenance, so that the maintenance cost is lower.

[0073] In addition, the air duct switching structure 100 further includes a reversing driving component 3, which is connected to the adjusting component 2 and is used to drive the adjusting component 2 to rotate so as to switch between the first working state and the second working state, so that the conduction switching of the air duct switching structure 100 is more intelligent, so as to facilitate the application of intelligent equipment.

[0074] Preferably, combined Figure 2 and Figure 3 As shown, the reversing drive component 3 includes a reversing driver 31, a driving worm 32 and a driving worm wheel 33, wherein the reversing driver 31 is connected to the driving worm 32, the driving worm 32 is meshed with the driving worm wheel 33, and the driving worm wheel 33 is connected to the adjusting component 2. The reversing driver 31 can be provided with a reversing driving motor, and the driving worm 32 is driven to rotate by the reversing driving motor, and the driving worm wheel 33 is driven to rotate, thereby driving the adjusting component 2 to rotate. Specifically, the rotating shaft of the driving worm wheel 33 is connected to the bottom of the first barrel section 211, and the first barrel section 211 is driven to rotate by the rotation of the driving worm wheel 33, and the second barrel section 212 is driven to rotate together, so that the opening on the adjusting component 2 can be shifted to be connected with the corresponding docking interface, so as to realize the switching between the first working state and the second working state. Through the driving mode of the driving worm wheel 33 and the driving worm 32, the transmission accuracy is higher and the working noise is smaller, so that when the air duct switching structure 100 is applied to the cleaning equipment, the working noise of the cleaning equipment is smaller.

[0075] The utility model also provides a cleaning device, which includes the above-mentioned air duct switching structure 100, and the cleaning device also includes a dirt collecting chamber and a suction device, by connecting the first docking port 111 of the air duct switching structure 100 with the suction device, connecting the second docking port 112 of the air duct switching structure 100 with the dirt collecting chamber, and connecting the third docking port 121 of the air duct switching structure 100 with the base station.

[0076] When the air duct switching structure 100 is in the first working state, the suction device is connected to the dirt collecting chamber, wherein the suction device can be set as a fan, a vacuum pump, etc., and a suction airflow is formed by the suction device to form a negative pressure in the dirt collecting chamber. The dirt collecting chamber can be connected to the dust suction port on the cleaning device. Under the action of negative pressure, external dirt can enter the dirt collecting chamber through the dust suction port to achieve the cleaning work of the cleaning device. When the cleaning device is docked with the base station, the air duct switching structure 100 can be adjusted to the second working state, so that the suction device can be connected to the base station through the air duct switching structure 100, and a negative pressure is formed in the base station through the suction device, so that dirt can be sucked through the base station. Among them, the base station can be connected to the dirt collecting chamber and / or can be connected to the cleaning tank on the base station, and the cleaning tank can be used for cleaning the cleaning parts on the cleaning device. Therefore, when negative pressure is formed in the base station, the dirt in the dirt collecting chamber of the cleaning equipment can be sucked out to achieve self-cleaning of the cleaning equipment, and / or the dirt in the cleaning tank on the base station can be sucked out. When the cleaning parts on the cleaning equipment are cleaned through the cleaning tank on the base station, the dirt formed in the cleaning tank can also be discharged through the negative pressure formed in the base station. There is no need to set a fan on the base station, but the self-cleaning of the cleaning equipment and the cleaning of the cleaning tank can still be achieved. The structure of the base station is simpler and the cost is lower.

[0077] Obviously, the above described embodiments are only a part of the embodiments of the utility model, not all of the embodiments. 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. An air duct switching structure (100), characterized in that: include: The reversing body (1) is hollow, and is provided with a first pair of ports (111), a second pair of ports (112), and a third pair of ports (121) which are connected to the inner cavity thereof; the first pair of ports (111) and the second pair of ports (112) are connected to form a first connecting channel, and the first pair of ports (111) and the third pair of ports (121) are connected to form a second connecting channel; An adjusting component (2) is arranged on the reversing body (1), and the adjusting component (2) can adjust the first connecting channel and the second connecting channel so that when one of them is in a passage state, the other is in a closed state.

2. The air duct switching structure (100) according to claim 1, characterized in that: The adjusting component (2) is movably arranged in the reversing body (1), and the adjusting component (2) moves relative to the reversing body (1) to have a first working state in which the third pairing interface (121) is closed and the first pairing interface (111) and the second pairing interface (112) are connected, and a second working state in which the second pairing interface (112) is closed and the first pairing interface (111) and the third pairing interface (121) are connected.

3. The air duct switching structure (100) according to claim 2, characterized in that: The adjusting component (2) is rotatably arranged in the reversing body (1), and the adjusting component (2) rotates to switch between the first working state and the second working state.

4. The air duct switching structure (100) according to claim 2, characterized in that: The adjusting component (2) is provided with a first opening (2111), a second opening (2112), a third opening (2121), a first shielding structure (2113) and a second shielding structure (2122); When the adjusting component (2) is in the first working state, the first opening (2111) and the first pair of interfaces (111) are in conduction with each other, the second opening (2112) and the second pair of interfaces (112) are in conduction with each other, and the second shielding structure (2122) is arranged to block the third pair of interfaces (121); When the adjusting component (2) is in the second working state, the third opening (2121) and the third mating interface (121) are in conduction with each other, the second opening (2112) and the first mating interface (111) are in conduction with each other, and the first shielding structure (2113) is arranged to block the second mating interface (112).

5. The air duct switching structure (100) according to claim 4, characterized in that: The first pair of ports (111), the second pair of ports (112) and the third pair of ports (121) are arranged at intervals along the circumference of the reversing body (1); The first opening (2111), the second opening (2112) and the third opening (2121) are arranged at intervals along the circumference of the adjusting component (2).

6. The air duct switching structure (100) according to claim 4, characterized in that: The first pair of ports (111) and the second pair of ports (112) are arranged at intervals along the circumference of the reversing body (1), and the first pair of ports (111) and the third pair of ports (121) are arranged at intervals along the axial direction of the reversing body (1); The first opening (2111) and the second opening (2112) are arranged at intervals along the circumference of the adjusting component (2), and the first opening (2111) and the third opening (2121) are arranged at intervals along the axial direction of the adjusting component (2).

7. The air duct switching structure (100) according to claim 4, characterized in that: The first shielding structure (2113), the first opening (2111) and the second opening (2112) are arranged in sequence along the circumference of the adjustment component (2); and / or, The second shielding structure (2122) and the third opening (2121) are arranged in sequence along the circumference of the adjustment component (2).

8. The air duct switching structure (100) according to claim 4, characterized in that: The reversing body (1) comprises: A first shell (11) and a second shell (12) connected to each other, the first docking port (111) and the second docking port (112) being arranged on the first shell (11), and the third docking port (121) being arranged on the second shell (12); The adjusting component (2) comprises: A first barrel section (211) and a second barrel section (212) are connected, wherein the first barrel section (211) is rotatably disposed in the first shell (11), the first opening (2111) and the second opening (2112) are disposed on the first barrel section (211), the second barrel section (212) is rotatably disposed in the second shell (12), and the third opening (2121) is disposed on the second barrel section (212).

9. The air duct switching structure (100) according to any one of claims 1 to 8, characterized in that: The air duct switching structure (100) further includes: A reversing driving component (3) is drivingly connected to the adjusting component (2) and is used to drive the adjusting component (2) to move so as to adjust the first connecting channel and the second connecting channel.

10. The air duct switching structure (100) according to claim 9, characterized in that: The reversing drive component (3) comprises: Reversing driver (31); A driving worm (32) connected to the reversing drive (31); A driving worm wheel (33) is meshed with the driving worm (32) and connected to the adjusting component (2).

11. An air duct switching structure (100), characterized in that: include: The reversing body (1) has a radial direction and an axial direction, and a first mating port (111) and a second mating port (112) communicating with the inner cavity of the reversing body (1) are provided on the outer peripheral surface of the reversing body (1); An adjusting component (2) is arranged on the reversing body (1), and the adjusting component (2) can make the first pair of ports (111) and the second pair of ports (112) communicate with each other in a radial direction or an axial direction to form a first communication channel.

12. The air duct switching structure (100) according to claim 11, characterized in that: A third docking port (121) is also provided on the outer peripheral surface of the reversing body (1); The adjusting component (2) can make the first pairing port (111) and the third pairing port (121) communicate with each other in a radial direction or an axial direction to form a second communication channel.

13. The air duct switching structure (100) according to claim 12, characterized in that: The adjusting component (2) is movably arranged in the reversing body (1) and moves relative to the reversing body (1); The regulating component (2) can enable the air duct switching structure (100) to have a first working state in which the first connecting channel is opened and the second connecting channel is closed, and enable the air duct switching structure (100) to have a second working state in which the first connecting channel is closed and the second connecting channel is opened.

14. The air duct switching structure (100) according to claim 11, characterized in that: The air duct switching structure (100) further includes: A reversing drive component (3) is drivingly connected to the adjusting component (2) and is used to drive the adjusting component (2) to move.

15. A cleaning device, characterized in that: It comprises the air duct switching structure (100) as claimed in any one of claims 1 to 14.

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