Air path switching device and cleaning base station

Abstract

The application discloses a gas path switching device and a cleaning base station. The gas path switching device comprises a shell assembly, a suction member and a switching assembly. The shell assembly has a gas main flow channel, a first gas branch flow channel, a second gas branch flow channel, a first gap and a second gap; the first gas branch flow channel is adapted to communicate with the gas main flow channel, a suction end and the first gap respectively, and the second gas branch flow channel is adapted to communicate with the gas main flow channel, a discharge end and the second gap respectively; the switching assembly comprises a switching member, and the switching member comprises a switching plate; the switching plate has a first position at which the switching plate is rotated to make the first gas branch flow channel communicate with the gas main flow channel and make the second gap communicate with the second gas branch flow channel, and a second position at which the switching plate is rotated to make the second gas branch flow channel communicate with the gas main flow channel and make the first gap communicate with the first gas branch flow channel. The application can solve the problem that the base station in the prior art realizes water pumping and water discharging of a sewage tank through a suction device and a sewage pump respectively, and the structure is relatively complex.

Description

Technical Field

[0001] This application relates to the field of clean technology, and more specifically, to a gas path switching device and a clean base station. Background Technology

[0002] Currently, more and more cleaning equipment is entering people's lives. To facilitate user operation, base stations used for maintaining these cleaning devices are gradually becoming an integral part of the system. Base stations generally have wastewater storage capabilities, used to store wastewater generated during the cleaning process in the base station's wastewater tank.

[0003] Currently, in the process of transferring wastewater from cleaning equipment to base stations, the wastewater tanks of base stations are generally pumped and drained using devices such as suction devices and sewage pumps, which is a relatively complex structure. Utility Model Content

[0004] The main purpose of this application is to provide a gas path switching device and a clean base station to solve the problem that the existing base station uses a suction device and a sewage pump to realize the functions of pumping and draining sewage tanks, which is relatively complex in structure.

[0005] According to one aspect of this application, a gas path switching device is provided for cleaning a base station to provide positive or negative pressure to the wastewater tank of the cleaning base station, the gas path switching device comprising:

[0006] The housing assembly includes a main gas channel, a first gas branch channel, a second gas branch channel, a first opening for connecting the first gas branch channel to the outside, and a second opening for connecting the second gas branch channel to the outside. The main gas channel is adapted to communicate with the first gas branch channel and the second gas branch channel, respectively.

[0007] An extraction device is disposed within the housing assembly and located between the first gas branch channel and the second gas branch channel, and the extraction device has an extraction end and an exhaust end, wherein the first gas branch channel is adapted to communicate with the extraction end and the second gas branch channel is adapted to communicate with the exhaust end.

[0008] A switching assembly includes a switching element disposed within the housing assembly and rotatable in a first direction or a second direction opposite to the first direction. The switching element includes a switching plate, which has a first position where it rotates to connect the first gas branch channel with the main gas channel and connects the second gas branch channel with the outside through a second notch, and simultaneously disconnects the second gas branch channel from the main gas channel and disconnects the first gas branch channel from the outside through the first notch; and a second position where it rotates to connect the second gas branch channel with the main gas channel and connects the first gas branch channel with the outside through the first notch, and simultaneously disconnects the first gas branch channel from the main gas channel and disconnects the second gas branch channel from the outside through the second notch.

[0009] Furthermore, the switching plate includes at least one, and when the switching plate includes multiple, the multiple switching plates rotate synchronously.

[0010] Furthermore, the first notch and the first gas branch channel are both located on the first side of the switching plate, and the second notch and the second gas branch channel are both located on the second side of the switching plate opposite to the first side.

[0011] When the switching plate rotates to the first position, the two opposite ends of the switching plate along its own length direction respectively block the communication channel between the first gap and the first gas branch channel, and block the communication channel between the second gas branch channel and the main gas channel, while simultaneously connecting the first gas branch channel and the main gas channel, and connecting the second gap with the second gas branch channel; when the switching plate rotates to the second position, the two opposite ends of the switching plate along its own length direction respectively block the communication channel between the first gas branch channel and the main gas channel, and block the communication channel between the second gap and the second gas branch channel, while simultaneously connecting the second gas branch channel and the main gas channel, and connecting the first gap with the first gas branch channel.

[0012] Furthermore, the outer casing assembly is provided with a first limiting component and a second limiting component. The first limiting component is located at the junction of the main gas channel and the second gas branch channel and / or the junction of the first gas branch channel and the first notch. The second limiting component is located at the junction of the second gas branch channel and the second notch and / or the junction of the main gas channel and the first gas branch channel.

[0013] When the switching plate rotates to the first position, the first limiting component abuts against the switching plate; when the switching plate rotates to the second position, the second limiting component abuts against the switching plate.

[0014] Furthermore, the first limiting component includes a first limiting rib, and the second limiting component includes a second limiting rib, both of which protrude from the inner wall surface of the outer shell assembly.

[0015] Furthermore, a sealing element is provided on the switching plate, and the sealing element is arranged around the circumference of the switching plate.

[0016] Furthermore, the switching component also includes a drive motor, which is driven to the switching plate to drive the switching plate to switch between the first position and the second position. When there are multiple switching plates, the drive motor is driven to the multiple switching plates to drive the multiple switching plates to switch between the first position and the second position simultaneously.

[0017] Furthermore, the switching plate includes a first switching segment and a second switching segment, and the rotation center of the switching plate is located between the first switching segment and the second switching segment;

[0018] Specifically, when the switching plate rotates to the first position, the first switching section blocks the connection between the second gas branch channel and the main gas channel, and the second switching section blocks the connection between the first gap and the first gas branch channel; when the switching plate rotates to the second position, the first switching section blocks the connection between the first gas branch channel and the main gas channel, and the second switching section blocks the connection between the second gap and the second gas branch channel.

[0019] Furthermore, the switching assembly also includes a rotating shaft that extends along the height direction of the air path switching device. The switching plate includes two plates, both of which are sleeved on the rotating shaft, and the rotation centers of the two switching plates are coaxially arranged and spaced apart along the extension direction of the rotating shaft.

[0020] On the other hand, this application also provides a clean base station, which includes the above-mentioned gas path switching device and a wastewater tank, which is connected to the main gas channel of the gas path switching device.

[0021] The gas path switching device of this application can switch the gas flow channels within the outer casing assembly by rotating the switching plate, and simultaneously complete the functions of pumping and discharging sewage from the base station's wastewater tank in conjunction with the air extraction component. Since this application only requires rotating the switching plate to achieve gas path switching, it eliminates the need for complex pipeline disassembly or multi-component linkage operations, resulting in a simple overall structure and effectively improving the operating efficiency of the gas path switching device. Specifically, when the switching plate rotates to the first position in the first direction, the gas path switching device can draw negative pressure into the wastewater tank, causing sewage from the cleaning equipment to be drawn into the wastewater tank, thereby achieving the sewage pumping function; when the switching plate rotates to the second position in the second direction, the gas path switching device can pressurize the wastewater tank, causing the sewage in the tank to be quickly discharged, thereby achieving the sewage discharge function. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of the first gas path switching device disclosed in the embodiments of this application;

[0024] Figure 2 This is a schematic diagram of the internal structure of the first gas path switching device disclosed in the embodiments of this application;

[0025] Figure 3 This is a schematic diagram of the structure of the first gas path switching device disclosed in the embodiments of this application when the switching component is in the first position;

[0026] Figure 4 This is a schematic diagram of the structure of the first type of gas path switching device disclosed in this application when the switching element is in the second position;

[0027] Figure 5 This is a schematic diagram of the structure of the second type of gas path switching device disclosed in the embodiments of this application;

[0028] Figure 6 This is a schematic diagram of the structure of the switching component in the first position in the second type of gas path switching device disclosed in the embodiments of this application;

[0029] Figure 7 This is a schematic diagram of the structure of the second type of gas path switching device disclosed in the embodiments of this application when the switching component is in the second position;

[0030] Figure 8 This is a schematic diagram of the third gas path switching device disclosed in the embodiments of this application;

[0031] Figure 9This is a schematic diagram of the third gas path switching device disclosed in the embodiments of this application when the switching element is in the first position;

[0032] Figure 10 This is a schematic diagram of the third type of gas path switching device disclosed in this application when the switching element is in the second position.

[0033] The above figures include the following reference numerals:

[0034] 10. Outer shell assembly; 101. First shell; 102. Second shell; 11. Main gas flow channel; 12. First gas branch channel; 13. Second gas branch channel; 14. First notch; 15. Second notch; 21. Extraction component; 201. Extraction end; 202. Exhaust end; 211. Brushless fan; 22. Switching component; 221. Switching element; 222. Switching plate; 2221. First switching section; 2222. Second switching section; 223. Drive motor; 224. Rotating shaft; 30. First limiting component; 31. First limiting rib; 40. Second limiting component; 41. Second limiting rib; 50. Sealing component. Detailed Implementation

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0038] As mentioned in the background section, in related technologies, base stations all have a wastewater storage function, used to store wastewater generated during the operation of cleaning equipment in the base station's wastewater tank. During the transfer of wastewater from the cleaning equipment to the base station, the base station typically uses suction devices and sewage pumps to separately achieve the pumping and draining functions of the wastewater tank, resulting in a relatively complex structure. To address this, the inventors of this application have designed a novel air path switching device. This device at least solves the problem of the complexity in existing technologies where base stations rely on suction devices and sewage pumps to separately achieve the pumping and draining functions of the base station's wastewater tank. The air path switching device of this application will be described in detail below with reference to the accompanying drawings.

[0039] See Figures 1 to 10 As shown, according to an embodiment of this application, a gas path switching device is provided. The gas path switching device is used to clean a base station to provide positive or negative pressure to the wastewater tank of the base station. The gas path switching device includes a housing assembly 10, an air extraction component 21, and a switching component 22.

[0040] Specifically, the outer casing assembly 10 is provided with a main gas channel 11, a first gas branch channel 12, a second gas branch channel 13, a first notch 14 suitable for connecting the first gas branch channel 12 to the outside, and a second notch 15 suitable for connecting the second gas branch channel 13 to the outside. The main gas channel 11 is adapted to communicate with the first gas branch channel 12 and the second gas branch channel 13, respectively. An extraction component 21 is disposed within the outer casing assembly 10 and located between the first gas branch channel 12 and the second gas branch channel 13. The extraction component 21 has an extraction end 201 and an exhaust end 202. The first gas branch channel 12 is adapted to communicate with the extraction end 201, and the second gas branch channel 13 is adapted to communicate with the exhaust end 202. The switching assembly 22 includes a switching component 221, which is provided with... The switching member 221, located within the housing assembly 10 and rotatable in a first direction or a second direction opposite to the first direction, includes a switching plate 222. The switching plate 222 has a first position where it rotates to connect the first gas branch channel 12 to the main gas channel 11 and connects the second gas branch channel 13 to the outside via a second notch 15, while simultaneously disconnecting the second gas branch channel 13 from the main gas channel 11 and disconnecting the first gas branch channel 12 from the outside via a first notch 14; and a second position where it rotates to connect the second gas branch channel 13 to the main gas channel 11 and connects the first gas branch channel 12 to the outside via a first notch 14, while simultaneously disconnecting the first gas branch channel 12 from the main gas channel 11 and disconnecting the second gas branch channel 13 from the outside via a second notch 15. It should be noted that in this application, "outside" refers to the environment or space outside the gas path switching device; and "first direction" refers to... Figure 3 The direction indicated by the middle arrow X; "second direction" refers to Figure 4The direction indicated by the middle arrow Y.

[0041] In this embodiment, the housing assembly 10 provides installation space for the air extraction component 21 and the switching component 22, and the air extraction component 21 is used to extract gas. When the gas path switching device of this application is installed on the clean base station, the main gas channel 11 must be connected to the wastewater tank of the clean base station to ensure that the gas in the wastewater tank can smoothly enter the gas path switching device through the main gas channel 11, providing a stable source for subsequent gas treatment. Since the wastewater tank of the base station is used to store wastewater generated during the operation of cleaning equipment (such as sweeping robots, floor scrubbing robots, or washer-extractors), when it is necessary to pump wastewater from the cleaning equipment into the wastewater tank, it is only necessary to turn on the exhaust device 21 and rotate the switching plate 222 to the first position. At this time, the first gas branch channel 12 is connected to the main gas channel 11 and the second notch 15 is connected to the second gas branch channel 13, while the second gas branch channel 13 is disconnected from the main gas channel 11 and the first notch 14 is disconnected from the first gas branch channel 12. The gas in the wastewater tank is discharged to the outside through the main gas channel 11, the first gas branch channel 12, the exhaust end 201, the exhaust end 202, the second gas branch channel 13, and the second notch 15 in sequence. The wastewater tank is evacuated, allowing wastewater from the cleaning equipment to be drawn into the base station's wastewater tank. When the wastewater needs to be discharged, simply activate the suction device 21 and rotate the switching plate 222 to the second position. At this point, the second gas branch channel 13 connects to the main gas channel 11, and the first notch 14 connects to the first gas branch channel 12. The first gas branch channel 12 is disconnected from the main gas channel 11, and the second notch 15 is disconnected from the second gas branch channel 13. External gas flows sequentially through the first notch 14, the first gas branch channel 12, the suction end 201, the exhaust end 202, the second gas branch channel 13, and the main gas channel 11 into the wastewater tank, pressurizing it and allowing the wastewater to be discharged quickly. The overall structure is simple, easy and quick to operate, and the components are highly integrated.

[0042] In other words, the gas path switching device of this application can switch the gas flow channels within the outer casing assembly 10 by rotating the switching plate 222, and simultaneously complete the functions of pumping and discharging sewage from the base station's sewage tank in conjunction with the extraction component 21. Since this application only requires rotating the switching plate 222 to achieve gas path switching, it eliminates the need for complex pipeline disassembly or multi-component linkage operations, resulting in a simple overall structure and effectively improving the operating efficiency of the gas path switching device. Specifically, when the switching plate 222 rotates to the first position in the first direction, the gas path switching device can draw negative pressure into the sewage tank, causing sewage from the cleaning equipment to be drawn into the sewage tank, thereby achieving the sewage pumping function; when the switching plate 222 rotates to the second position in the second direction, the gas path switching device can pressurize the sewage tank, causing the sewage in the sewage tank to be quickly discharged, thereby achieving the sewage discharge function.

[0043] Figure 3 , Figure 6 and Figure 9 The flow path of gas within the housing assembly 10 is shown when the switching plate 222 is in the first position; Figure 4 , Figure 7 and Figure 10 The flow path of gas within the housing assembly 10 is shown when the switching plate 222 is in the second position.

[0044] Further, see Figure 3 , Figure 6 and Figure 10 As shown, the switching plate 222 in this embodiment includes at least one, and when there are multiple switching plates 222, the multiple switching plates 222 rotate synchronously.

[0045] Specifically, a single switching plate 222 can meet basic flow channel on / off control requirements and is suitable for simplified application scenarios. The synchronous rotation design of multiple switching plates 222 ensures consistent operation during rotation, guaranteeing precise and synchronized on / off control of different gas branch channels and gaps. This avoids problems such as poor flow channel sealing and gas cross-flow caused by delays or deviations in the operation of a single switching plate 222. This flexible number setting and synchronous rotation not only adapts to the structural requirements of devices with varying complexity but also improves the reliability and stability of flow channel switching, further ensuring the accuracy of positive and negative pressure supply from the gas path switching device.

[0046] For example, the switching board 222 in this application can be set to one, or it can be set to two, three or four or more, and this application does not make a specific limitation.

[0047] Further, see Figure 3 As shown, in this embodiment, the first notch 14 and the first gas branch channel 12 are both located on the first side of the switching plate 222, and the second notch 15 and the second gas branch channel 13 are both located on the second side of the switching plate 222 opposite to the first side. When the switching plate 222 rotates to the first position, the two ends of the switching plate 222 along its own length direction respectively block the connecting channel between the first notch 14 and the first gas branch channel 12, and block the connecting channel between the second gas branch channel 13 and the main gas channel 11, while simultaneously connecting the first gas branch channel 12 and the main gas channel 11 and connecting the second notch 15 and the second gas branch channel 13. When the switching plate 222 rotates to the second position, the two ends of the switching plate 222 along its own length direction respectively block the connecting channel between the first gas branch channel 12 and the main gas channel 11, and block the connecting channel between the second notch 15 and the second gas branch channel 13, while simultaneously connecting the second gas branch channel 13 and the main gas channel 11 and connecting the first notch 14 and the first gas branch channel 12.

[0048] Specifically, when the switching plate 222 rotates to the first position, one end of the switching plate 222 blocks the connection between the second gas branch channel 13 and the main gas channel 11, so that the second gas branch channel 13 and the main gas channel 11 are disconnected. The other end of the switching plate 222 blocks the connection between the first notch 14 and the first gas branch channel 12, so that the first gas branch channel 12 is disconnected from the outside, which facilitates the negative pressure supply to the sewage tank. When the switching plate 222 rotates to the second position, one end of the switching plate 222 blocks the connection between the first gas branch channel 12 and the main gas channel 11, so that the first gas branch channel 12 and the main gas channel 11 are disconnected. The other end of the switching plate 222 blocks the connection between the second notch 15 and the second gas branch channel 13, so that the second gas branch channel 13 is disconnected from the outside, which facilitates the positive pressure supply to the sewage tank.

[0049] In other words, this embodiment, by utilizing the rotation of the switching plate 222, can precisely and synchronously control the opening and closing of the corresponding gaps and branch channels, ensuring the specificity and sealing of the gas path during the positive or negative pressure supply process. Furthermore, this embodiment can simultaneously achieve coordinated control of two sets of gaps and branch channels using a single switching plate 222, simplifying the structure of the switching assembly 22, reducing the number of parts, and lowering assembly complexity. At the same time, the rotary closing method is flexible and responsive, ensuring the stability and reliability of the switching process and improving the overall operating efficiency of the device.

[0050] Further, see Figure 2 As shown, in this embodiment, the outer casing assembly 10 is provided with a first limiting component 30 and a second limiting component 40. The first limiting component 30 is located at the junction of the main gas channel 11 and the second gas branch channel 13 and / or the junction of the first gas branch channel 12 and the first notch 14. The second limiting component 40 is located at the junction of the second gas branch channel 13 and the second notch 15 and / or the junction of the main gas channel 11 and the first gas branch channel 12. When the switching plate 222 is rotated to the first position, the first limiting component 30 abuts against the switching plate 222. When the switching plate 222 is rotated to the second position, the second limiting component 40 abuts against the switching plate 222.

[0051] Specifically, when the switching plate 222 rotates to the first position, the first limiting component 30 abuts against the switching plate 222 to prevent the switching plate 222 from continuing to rotate in the first direction and failing to simultaneously close the second gas branch channel 13 and the first notch 14; when the switching plate 222 rotates to the second position, the second limiting component 40 abuts against the switching plate 222 to prevent the switching plate 222 from continuing to rotate in the second direction and failing to simultaneously close the first gas branch channel 12 and the second notch 15.

[0052] In other words, this embodiment can precisely limit the rotation stroke of the switching plate 222 through the first limiting component 30 and the second limiting component 40, ensuring that the switching plate 222 can be stably stopped at the preset first position and second position. This avoids problems such as incomplete closure of the flow channel and gas leakage caused by excessive or insufficient rotation of the switching plate 222, ensuring the accuracy and sealing of the flow channel opening and closing control, and providing reliable positioning support for the switching plate 222, enhancing the stability and repeatability of the switching process, and thus improving the reliability and durability of the entire device.

[0053] Optionally, in this embodiment, the first limiting component 30 may be provided only at the junction of the main gas channel 11 and the second gas branch channel 13 or at the junction of the first gas branch channel 12 and the first notch 14, or it may be provided simultaneously at both the junction of the main gas channel 11 and the second gas branch channel 13 and the junction of the first gas branch channel 12 and the first notch 14. Similarly, in this embodiment, the second limiting component 40 may be provided only at the junction of the second gas branch channel 13 and the second notch 15 or at the junction of the main gas channel 11 and the first gas branch channel 12, or it may be provided simultaneously at both the junction of the second gas branch channel 13 and the second notch 15 and the junction of the main gas channel 11 and the first gas branch channel 12.

[0054] Further, see Figure 2 As shown, in this embodiment, the first limiting component 30 includes a first limiting rib 31, and the second limiting component 40 includes a second limiting rib 41. Both the first limiting rib 31 and the second limiting rib 41 protrude from the inner wall surface of the outer shell assembly 10.

[0055] Specifically, when the switching plate 222 rotates to the first or second position, the first limiting rib 31 and the second limiting rib 41 respectively form a stable abutment with the switching plate 222, thereby strengthening the limiting function, accurately limiting the rotation stroke of the switching plate 222, and ensuring that the switching plate 222 is stably stopped at the preset position. In this embodiment, the first limiting rib 31 and the second limiting rib 41 have a simple structure and are easy to process and form on the inner wall surface of the outer shell assembly 10. There is no need to set up additional complex parts, which simplifies the production process and reduces manufacturing costs. At the same time, the design of the first limiting rib 31 and the second limiting rib 41 protruding from the inner wall surface can form an integrated structure with the outer shell assembly 10, improving the structural strength and durability of the first limiting component 30 and the second limiting component 40, ensuring the stability of the limiting effect during long-term use, further enhancing the reliability of the positioning of the switching plate 222, and providing a solid guarantee for the stable operation of the entire device.

[0056] Further, see Figures 3 to 4 As shown, in this embodiment, a sealing element 50 is provided on the switching plate 222, and the sealing element 50 is arranged around the circumference of the switching plate 222.

[0057] Specifically, the seal 50 improves the sealing performance of the switching plate 222. When the switching plate 222 rotates to the first or second position, the seal 50 fits tightly against the inner wall of the housing assembly 10 and the corresponding limiting components, filling the gaps between the switching plate 222 and the surrounding structure. This effectively prevents gas leakage between the flow channels or between the flow channels and the outside, ensuring the reliability of the on / off states of the first gas branch channel 12, the second gas branch channel 13, the first notch 14, and the second notch 15 when the switching plate 222 is in the corresponding position. Simultaneously, since the seal 50 in this embodiment is arranged circumferentially around the switching plate 222, all-around sealing of the switching plate 222 can be achieved, improving the integrity and reliability of the seal. Furthermore, the installation of the seal 50 does not require complex modifications to the main structure of the switching plate 222 or the housing assembly 10, making assembly and maintenance easier. It also reduces the impact of wear caused by long-term use on the sealing effect, extending the service life of the device and further ensuring the stability and efficiency of the positive and negative pressure switching of the gas path switching device.

[0058] For example, the sealing element 50 in this application includes rubber sealing rings, silicone sealing rings, etc. Any other modifications under the concept of this application are within the protection scope of this application.

[0059] Further, see Figure 1 , Figure 5 and Figure 9 As shown, the switching component 22 in this embodiment also includes a drive motor 223. The drive motor 223 is driven to switch the switching plate 222 to switch the switching plate 222 between a first position and a second position. When there are multiple switching plates 222, the drive motor 223 is driven to switch the multiple switching plates 222 to switch the multiple switching plates 222 between the first position and the second position simultaneously.

[0060] Specifically, in this embodiment, the drive motor 223 provides stable and controllable power for the rotation of the switching plate 222, realizing automated control of the switching process and ensuring that the switching plate 222 can accurately and timely reach the preset position. At the same time, this embodiment can simultaneously drive multiple switching plates 222 to rotate synchronously through one drive motor 223, thereby ensuring the consistency of the actions of each switching plate 222, preventing poor sealing or functional failure of the flow channel due to deviations in the actions of a single switching plate 222, enhancing the coordination and reliability of the switching assembly 22, and further improving the automation level and operational stability of the entire device.

[0061] Further, see Figure 4As shown, the switching plate 222 in this embodiment includes a first switching section 2221 and a second switching section 2222, with the rotation center of the switching plate 222 located between the first switching section 2221 and the second switching section 2222. When the switching plate 222 rotates to the first position, the first switching section 2221 blocks the communication channel between the second gas branch channel 13 and the main gas channel 11, and the second switching section 2222 blocks the communication channel between the first gap 14 and the first gas branch channel 12. When the switching plate 222 rotates to the second position, the first switching section 2221 blocks the communication channel between the first gas branch channel 12 and the main gas channel 11, and the second switching section 2222 blocks the communication channel between the second gap 15 and the second gas branch channel 13.

[0062] Specifically, during the rotation of the switching plate 222, the first switching segment 2221 and the second switching segment 2222 respectively act on different gas branch channels and gaps, ensuring that when the switching plate 222 rotates to the first or second position, both ends accurately complete the closing operation of the corresponding structure. At the same time, this embodiment, by designing the switching plate 222 in segments, allows for more balanced force distribution and smoother rotation, while also making the actions of the two switching segments more coordinated, further improving the accuracy and reliability of controlling the opening and closing of the gas branch channels and gaps.

[0063] Further, see Figures 8 to 10 As shown, the switching assembly 22 also includes a rotating shaft 224, which extends along the height direction of the air path switching device. There are two switching plates 222, both of which are sleeved on the rotating shaft 224. The rotation centers of the two switching plates 222 are coaxially arranged and spaced apart along the extension direction of the rotating shaft 224.

[0064] Specifically, the rotating shaft 224 provides stable rotational support for the two switching plates 222, ensuring precise and controllable rotation paths; the coaxial rotation design of the two switching plates 222 ensures that their rotation angles are completely consistent, structurally avoiding the problem of asynchronous action caused by the offset of the rotation center; and the layout of being spaced apart along the extension direction of the rotating shaft allows the two switching plates 222 to control the gas branch channels or gaps at different positions respectively, without interfering with each other and cooperating, effectively improving the coordination and stability of the gas path switching device.

[0065] Figure 9 This diagram illustrates the gas flow direction when both switching plates 222 are simultaneously in the first position. Figure 9As can be seen, when the two switching plates 222 rotate synchronously to the first position, the second gas branch channel 13 is disconnected from the main gas channel 11 and the first gap 14 is disconnected from the first gas branch channel 12. At this time, the gas in the sewage tank is discharged to the outside through the main gas channel 11, the first gas branch channel 12, the extraction end 201, the exhaust end 202, the second gas branch channel 13 and the second gap 15 in sequence.

[0066] Figure 10 This diagram illustrates the gas flow direction when both switching plates 222 are simultaneously in the second position. Figure 10 As can be seen, when the two switching plates 222 rotate synchronously to the second position, the main gas channel 11 is disconnected from the first gas branch channel 12 and the second gap 15 is disconnected from the second gas branch channel 13. At this time, the outside gas enters the sewage tank through the first gap 14, the first gas branch channel 12, the extraction end 201, the exhaust end 202, the second gas branch channel 13 and the main gas channel 11 in sequence.

[0067] Further, see Figure 1 and Figure 5 As shown, the air extraction component 21 in this embodiment includes a brushless fan 211, the axial direction of which is parallel or perpendicular to the height direction of the air path switching device. It should be noted that the "height direction of the air path switching device" in this application refers to the attached... Figure 1 The direction indicated by the letter Z in this embodiment. Figures 1 to 4 The diagram shows the case where the axial direction of the brushless fan 211 is parallel to the height direction of the air path switching device; Appendix Figures 5 to 7 The diagram shows the case where the axial direction of the brushless fan 211 is perpendicular to the height direction of the air path switching device.

[0068] Specifically, in this embodiment, the brushless fan 211 provides continuous power for gas extraction through efficient operation, meeting the following two operating conditions: First, when the first gas branch channel 12 is connected to the main gas channel 11, the second gas branch channel 13 is disconnected from the main gas channel 11, and the first notch 14 is disconnected from the first gas branch channel 12, negative pressure is generated during extraction; second, when the second gas branch channel 13 is connected to the main gas channel 11, the first gas branch channel 12 is disconnected from the main gas channel 11, and the second notch 15 is disconnected from the second gas branch channel 13, positive pressure is generated during inflation. Compared with brushed fans, the brushless fan 211 in this embodiment has the characteristics of stable operation, low noise, and long service life, which can improve the long-term working reliability of the extraction component 21. At the same time, the design of the brushless fan 211's axis being parallel or perpendicular to the height direction of the gas path switching device allows for flexible adjustment of the installation method according to the internal space layout of the device, improving space utilization, adapting to different structural design requirements, ensuring smooth gas flow in the channel, reducing airflow resistance, and further enhancing the working efficiency of the extraction component 21.

[0069] It is worth mentioning that, see Figures 1 to 4 As shown, in the first embodiment of this application, the switching plate 222 includes one, and the axial direction of the brushless fan 211 is parallel to the height direction of the air path switching device; see also Figures 5 to 7 As shown, in the second embodiment of this application, the switching plate 222 includes one unit, and the axial direction of the brushless fan 211 is perpendicular to the height direction of the air path switching device; see also Figures 8 to 10 As shown, in the third embodiment of this application, the switching plate 222 includes two, and the axial direction of the brushless fan 211 is parallel to the height direction of the air path switching device.

[0070] Further, see Figure 1 and Figure 5 As shown, the outer shell assembly 10 in this embodiment includes a first shell 101 and a second shell 102. The first shell 101 is detachably disposed on the second shell 102, and a sealing layer (not shown in the figure) is provided at the junction of the first shell 101 and the second shell 102.

[0071] Specifically, since the first housing 101 is detachably mounted on the second housing 102 in this embodiment, it facilitates the disassembly and assembly of the outer casing assembly 10, providing convenience for the inspection, replacement, or maintenance of internal components. A sealing layer is provided at the junction of the first housing 101 and the second housing 102, which effectively prevents external dust, moisture, and other impurities from entering the interior of the outer casing assembly 10, protecting the internal components from corrosion, and preventing internal gas or liquid leakage, thus extending the service life of the equipment.

[0072] For example, the sealing layer in this application includes an adhesive layer, a rubber sealing ring, a silicone gasket, a foam sealing strip, etc. Any other variation of the concept in this application is within the scope of protection of this application.

[0073] Optionally, the first housing 101 and the second housing 102 in this application can be connected by screws, snaps, or other means. Any other modifications under the concept of this application are within the protection scope of this application.

[0074] On the other hand, this application embodiment also provides a clean base station, which includes the aforementioned gas path switching device. Therefore, the clean base station includes all the technical effects of the aforementioned gas path switching device. Since the technical effects of the gas path switching device have been described in detail above, they will not be repeated here.

[0075] Furthermore, the clean base station in this application also includes a wastewater tank, which is connected to the main gas channel 11 of the gas switching device.

[0076] Specifically, when the gas path switching device of this application is installed on a cleaning base station, the main gas channel 11 is connected to the wastewater tank to ensure that the gas in the wastewater tank can smoothly enter the gas path switching device through the main gas channel 11, providing a stable source for subsequent gas treatment. Since the wastewater tank of the base station is used to store wastewater generated during the operation of cleaning equipment (such as sweeping robots, floor scrubbing robots, or washer-extractors), when it is necessary to pump wastewater from the cleaning equipment into the wastewater tank, it is only necessary to turn on the extraction component 21 and switch the switching component 22 to the first position. At this time, the first gas branch channel 12 is connected to the main gas channel 11 and the second notch 15 is connected to the second gas branch channel 13, while the second gas branch channel 13 is disconnected from the main gas channel 11 and the first notch 14 is disconnected from the first gas branch channel 12. The gas in the wastewater tank is discharged to the outside through the main gas channel 11, the first gas branch channel 12, the extraction end 201, the exhaust end 202, the second gas branch channel 13, and the second notch 15 in sequence. The sewage tank is evacuated, allowing the sewage from the cleaning equipment to be drawn into the sewage tank of the base station. When the sewage needs to be discharged from the sewage tank, simply turn on the air extraction component 21 and switch the switching component 22 to the second position. At this time, the second gas branch channel 13 is connected to the main gas channel 11 and the first gap 14 is connected to the first gas branch channel 12. The first gas branch channel 12 is disconnected from the main gas channel 11, and the second gap 15 is disconnected from the second gas branch channel 13. External gas enters the sewage tank sequentially through the first gap 14, the first gas branch channel 12, the air extraction end 201, the exhaust end 202, the second gas branch channel 13, and the main gas channel 11, thereby pressurizing the sewage tank and allowing the sewage in the sewage tank to be discharged quickly.

[0077] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0078] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0079] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A gas path switching device, the gas path switching device being used for cleaning a base station to provide positive or negative pressure to the wastewater tank of the cleaning base station, characterized in that, The gas path switching device includes: The housing assembly (10) is provided with a main gas channel (11), a first gas branch channel (12), a second gas branch channel (13), a first gap (14) adapted to connect the first gas branch channel (12) to the outside and a second gap (15) adapted to connect the second gas branch channel (13) to the outside. The main gas channel (11) is adapted to connect with the first gas branch channel (12) and the second gas branch channel (13) respectively. An extraction component (21) is disposed within the housing assembly (10) and located between the first gas branch channel (12) and the second gas branch channel (13), and the extraction component (21) has an extraction end (201) and an exhaust end (202), the first gas branch channel (12) being adapted to communicate with the extraction end (201), and the second gas branch channel (13) being adapted to communicate with the exhaust end (202); A switching assembly (22) includes a switching element (221) disposed within the housing assembly (10) and rotatable in a first direction or a second direction opposite to the first direction. The switching element (221) includes a switching plate (222) that rotates to connect the first gas branch channel (12) with the main gas channel (11) and to connect the second gas branch channel (13) with the outside via a second notch (15), while simultaneously allowing the second gas branch channel (13) to connect with the outside. 13) Disconnect from the main gas channel (11) and disconnect the first gas branch channel (12) from the outside by the first gap (14), and rotate to a second position where the second gas branch channel (13) is connected to the main gas channel (11) and the first gap (14) is connected to the first gas branch channel (12) from the outside, and the first gas branch channel (12) is disconnected from the main gas channel (11) and the second gap (15) is disconnected from the second gas branch channel (13) from the outside.

2. The gas path switching device according to claim 1, characterized in that, The switching plate (222) includes at least one, and when the switching plate (222) includes multiple, the multiple switching plates (222) rotate synchronously.

3. The gas path switching device according to claim 2, characterized in that, The first notch (14) and the first gas branch channel (12) are both located on the first side of the switching plate (222), and the second notch (15) and the second gas branch channel (13) are both located on the second side of the switching plate (222) opposite to the first side. When the switching plate (222) rotates to the first position, the two ends opposite to each other along its own length direction of the switching plate (222) respectively block the communication channel between the first gap (14) and the first gas branch channel (12), and block the communication channel between the second gas branch channel (13) and the gas main channel (11), and at the same time make the first gas branch channel (12) and the gas main channel (11) connected and make the second gap (15) and the second gas branch channel (13) connected; when the switching plate (222) rotates to the second position, the two ends opposite to each other along its own length direction of the switching plate (222) respectively block the communication channel between the first gas branch channel (12) and the gas main channel (11), and block the communication channel between the second gap (15) and the second gas branch channel (13), and at the same time make the second gas branch channel (13) and the gas main channel (11) connected and make the first gap (14) and the first gas branch channel (12) connected.

4. The gas path switching device according to claim 3, characterized in that, The outer casing assembly (10) is provided with a first limiting component (30) and a second limiting component (40). The first limiting component (30) is located at the junction of the main gas channel (11) and the second gas branch channel (13) and / or the junction of the first gas branch channel (12) and the first notch (14). The second limiting component (40) is located at the junction of the second gas branch channel (13) and the second notch (15) and / or the junction of the main gas channel (11) and the first gas branch channel (12). When the switching plate (222) rotates to the first position, the first limiting component (30) abuts against the switching plate (222); when the switching plate (222) rotates to the second position, the second limiting component (40) abuts against the switching plate (222).

5. The gas path switching device according to claim 4, characterized in that, The first limiting component (30) includes a first limiting rib (31), and the second limiting component (40) includes a second limiting rib (41). Both the first limiting rib (31) and the second limiting rib (41) protrude from the inner wall surface of the outer shell assembly (10).

6. The gas path switching device according to claim 2, characterized in that, A sealing element (50) is provided on the switching plate (222), and the sealing element (50) is arranged around the circumference of the switching plate (222).

7. The gas path switching device according to claim 2, characterized in that, The switching component (22) further includes a drive motor (223), which is drivenly connected to the switching plate (222) to drive the switching plate (222) to switch between the first position and the second position. When there are multiple switching plates (222), the drive motor (223) is drivenly connected to multiple switching plates (222) to drive multiple switching plates (222) to switch between the first position and the second position simultaneously.

8. The gas path switching device according to any one of claims 3 to 7, characterized in that, The switching plate (222) includes a first switching segment (2221) and a second switching segment (2222), and the rotation center of the switching plate (222) is located between the first switching segment (2221) and the second switching segment (2222). When the switching plate (222) rotates to the first position, the first switching section (2221) blocks the communication channel between the second gas branch channel (13) and the main gas channel (11), and the second switching section (2222) blocks the communication channel between the first gap (14) and the first gas branch channel (12); when the switching plate (222) rotates to the second position, the first switching section (2221) blocks the communication channel between the first gas branch channel (12) and the main gas channel (11), and the second switching section (2222) blocks the communication channel between the second gap (15) and the second gas branch channel (13).

9. The gas path switching device according to any one of claims 3 to 7, characterized in that, The switching assembly (22) further includes a rotating shaft (224) that extends along the height direction of the air path switching device. The switching plate (222) includes two plates, both of which are sleeved on the rotating shaft (224). The rotation centers of the two switching plates (222) are coaxially arranged and spaced apart along the extension direction of the rotating shaft (224).

10. A clean base station, characterized in that, The clean base station includes the gas path switching device according to any one of claims 1 to 9, and the clean base station also includes a sewage tank, which is connected to the main gas channel (11) of the gas path switching device.

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