Reversing structure for cleaning systems and cleaning systems

Abstract

This invention relates to a reversing structure for a cleaning system and a cleaning system thereof. The reversing structure includes a housing, a fan, and a rotating component. The rotating component is arranged to rotate relative to the housing about its vertical axis, thus having two states: In a first state, the air outlet is connected to the connecting channel, and the lower air outlet surrounds and connects to the second channel and the air passage; in a second state, the air outlet is connected to the air passage, and the lower air outlet surrounds and connects to the connecting channel and the second channel. This reversing structure can change the direction of fluid flow without requiring additional air pumps or fans.

Description

Technical Field

[0001] This invention belongs to the field of household washing and cleaning technology, specifically relating to a reversing structure and cleaning system for a cleaning system. Background Technology

[0002] Current cleaning systems include at least a cleaning machine. In order to clean and recycle the waste inside the cleaning machine, the cleaning system also includes a base station. The base station collects the sewage and waste inside the cleaning machine and discharges the sewage and waste directly into the sewer.

[0003] For example, the Chinese utility model patent "Cleaning Robot Base Station and Cleaning System" with patent application number ZL202121358893.9 (authorization announcement number CN215914440U) discloses a cleaning robot base station that includes a sewage tank and a crushing mechanism. The crushing mechanism is set inside the sewage tank. The cleaning robot base station also includes a water pump (pump) and connecting pipes. The sewage tank can be connected to the cleaning robot through the connecting pipes to transfer the sewage temporarily stored inside the cleaning robot. The connecting pipes can be set inside the cleaning robot base station. The water pump is connected to the sewage tank. The water pump can input the sewage and garbage inside the cleaning robot into the sewage tank through the connecting pipes.

[0004] The patent has the following defects:

[0005] Wastewater and debris inside the cleaning robot are pumped into a wastewater tank using a water pump. However, the pump only allows unidirectional flow and cannot change the direction of fluid flow. When direct discharge is required, a separate drainage pump is usually needed to increase the discharge force. Using two pumps increases the complexity of additional piping setup and also raises production and maintenance costs. Summary of the Invention

[0006] The first technical problem to be solved by the present invention is to provide a reversing structure for a cleaning system that changes the direction of fluid flow, in light of the current state of the prior art.

[0007] The second technical problem to be solved by the present invention is to provide a cleaning system that changes the direction of fluid flow to simultaneously achieve the purpose of dirt suction and drying.

[0008] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: a reversing structure for a cleaning system, used to reversing the flow of fluid through a storage chamber, characterized in that it includes:

[0009] The shell has an upper chamber and a lower chamber arranged sequentially from top to bottom. The top wall of the upper chamber has a first channel for communicating with the storage chamber, and the bottom wall of the upper chamber has a second channel, an air passage, and a connecting channel for communicating with the upper chamber and the lower chamber, which are arranged circumferentially. The second channel is used to communicate with the outside.

[0010] A fan is located in the lower chamber, the air inlet of the fan is connected to the upper chamber through the connecting channel, and the air outlet of the fan is in fluid communication with the air passage.

[0011] A rotating component is laterally arranged within the upper chamber, dividing the upper chamber into an upper air passage located above the rotating component and a lower air passage located below the rotating component. The upper air passage is connected to the first passage and both the upper and lower air passages extend circumferentially along the housing. The rotating component has an air inlet penetrating its wall thickness at a position corresponding to the upper air passage. The rotating component is arranged to rotate relative to the housing about its vertical axis, thus the rotating component has the following two states:

[0012] In the first state, the air outlet is connected to the connecting channel, and the lower air outlet surrounds the second channel and the air passage and is connected to the second channel and the air passage.

[0013] In the second state, the air outlet is connected to the air passage, and the lower air passage surrounds the periphery of the connecting passage and the second passage, and is connected to the connecting passage and the second passage.

[0014] Thus, during the rotation of the rotating component, when the vent is connected to the connecting channel, the lower vent is connected to the second channel and the air passage. At this time, the fan's inlet is connected to the connecting channel through the vent. When the fan is working, the airflow sequentially enters the fan's inlet through the first channel, the upper vent, the vent, and the connecting channel, and then exits through the fan's outlet. After exiting, it sequentially passes through the air passage, the lower vent, and the second channel before being discharged, thus achieving the suction of the storage chamber. When the rotating component rotates to the point where the vent is connected to the air passage, the lower vent connects to the connecting channel and the second channel. The channels are interconnected. At this time, the air inlet of the fan is connected to the second channel through the connecting channel and the lower air passage. When the fan is working, the airflow enters the air inlet of the fan in sequence through the outside, the second channel, the lower air passage and the connecting channel, and then exits through the air outlet of the fan. After exiting through the air passage, the air outlet and the upper air passage, the air is discharged into the storage chamber through the first channel, thereby filling and pressurizing the storage chamber. That is, in the entire fluid flow process, there is no need to set up other air pumps to change the fluid flow direction. The operation process is convenient and highly reliable, which can better meet the needs of users.

[0015] Preferably, the second channel, the air passage, and the connecting channel surround the periphery of the vertical axis of the rotating member.

[0016] There are various forms of the lower air passage. It can be formed by creating an upwardly recessed cavity on the bottom wall of the rotating component, or by providing a downwardly extending extension wall on the bottom wall of the rotating component, with the extension wall and the bottom wall of the upper chamber forming the lower air passage. However, preferably, the bottom wall of the rotating component is recessed upwardly to form the lower air passage, and the bottom wall plate of the upper chamber abuts against the periphery of the lower air passage and surrounds the lower air passage to form the lower air passage. In the first state of the rotating component, the periphery of the lower air passage surrounds the second passage and the air passage. In the second state of the rotating component, the periphery of the lower air passage surrounds the periphery of the connecting passage and the second passage.

[0017] There are several ways to form the lower air passage. It can be formed in the form of a downwardly recessed upper cavity on the top wall of the rotating part, or it can be formed in the form of an upwardly extending extension wall on the top wall of the rotating part, with the extension wall and the top wall of the upper chamber forming the lower cavity together. However, preferably, the top wall of the rotating part is recessed to form an upper cavity, and the top wall plate of the upper chamber abuts against the periphery of the upper cavity and surrounds the upper cavity to form the upper air passage.

[0018] There are various possible locations for the air vent. It can be located in the upper air passage away from the first end, or it can be located in the first end. However, preferably, the end of the upper air passage away from the lower air passage is the first end, and the end adjacent to the lower air passage is the second end. The air vent is located in the first end of the upper air passage, and the second end of the upper air passage corresponds to the lower air passage. Both share the same transverse wall plate. The top surface of the transverse wall plate is located below the top surface of the lower concave cavity and below the bottom surface of the upper concave cavity. In the first state of the rotating member, the transverse wall plate corresponds to the second channel. In the second state of the rotating member, the transverse wall plate corresponds to the air vent.

[0019] In order to limit the rotational stroke of the rotating component, the inner wall surface of the top wall plate of the upper chamber is recessed upward to form a guide channel extending along the rotational direction of the rotating component. The top surface of the rotating component has a guide rod extending upward and located in the guide channel. When the rotating component is in a first state, the guide rod abuts against the first end face of the guide channel. When the rotating component is in a second state, the guide rod abuts against the second end face of the guide channel.

[0020] Preferably, the inner wall surface of the top wall plate of the upper chamber is recessed upward to form a recessed area that matches the shape of the upper air passage. The first passage is located on the top plate of the recessed area. When the rotating member is in the first state, the recessed area corresponds to the upper air passage, and the first passage corresponds to the air outlet.

[0021] To facilitate the introduction of the gas discharged from the fan into the air passage, the housing has an air passage chamber connected to the air passage at a position corresponding to the air passage. The air passage chamber is located below the upper chamber and on the side of the lower chamber. An air inlet connected to the air outlet of the fan is opened on the side wall of the air passage chamber near the bottom.

[0022] There are several ways to achieve the rotation of a rotating component, including manual pushing or active driving. However, from the perspective of operational reliability and efficiency, it is preferable to also include a drive mechanism for driving the rotating component to rotate, with the power output end of the drive mechanism connected to the rotating component.

[0023] The rotating component can be in the form of a transmission gear or fixed relative to the transmission gear. However, from the perspective of structural simplicity and volume reduction, it is preferable that the rotating component is a transmission gear. The transmission gear is mounted in the upper cavity near the center via a vertically extending connecting shaft. The axis of the connecting shaft is the vertical axis of the rotating component. The driving mechanism includes a motor and a drive gear. The motor has an output shaft arranged parallel to and spaced apart from the vertical axis of the rotating component. The drive gear is mounted on the output shaft of the motor and meshes with the transmission gear.

[0024] The driving gear and the transmission gear can mesh directly or indirectly through a linkage component. Preferably, the linkage component is also included, wherein the power input end of the linkage component is linked to the driving gear, and the power output end of the linkage component is linked to the transmission gear.

[0025] The linkage assembly can be in the form of a single linkage gear or two linkage gears arranged coaxially. However, preferably, the linkage assembly includes a vertically extending mounting shaft and a first linkage gear and a second linkage gear mounted on the mounting shaft and rotating synchronously. The first linkage gear is located below the second linkage gear and meshes with the driving gear, while the second linkage gear meshes with the transmission gear.

[0026] To protect the drive gear, the housing has a third chamber located next to the upper chamber. The peripheral wall of the upper chamber has a through hole for the teeth of the drive gear to pass into the third chamber. At least part of the drive gear and the output shaft are located in the third chamber.

[0027] The motor can be located above or below the third chamber, but preferably, the motor is located below the third chamber and beside the lower chamber, with the upper end of the motor's output shaft located inside the third chamber.

[0028] The technical solution adopted by the present invention to solve the second technical problem mentioned above is as follows: a cleaning system, including a base station and a cleaning machine, wherein the cleaning machine has a sludge storage chamber and a sludge discharge port; the base station includes a base and a sludge collection box, wherein the sludge collection box is disposed on the base, and the inner cavity of the sludge collection box is the storage chamber; the base has a receiving cavity for placing the cleaning machine therein; wherein, when the cleaning machine is located in the receiving cavity, the connecting pipe of the storage chamber of the sludge collection box is connected to the sludge discharge port of the storage chamber; characterized in that: it further includes the aforementioned reversing structure, wherein the first channel of the reversing structure is connected to the vent of the storage chamber.

[0029] To enable sewage discharge, the sewage collection tank is equipped with a sewage discharge pipe, and a first switch valve is installed on the sewage discharge pipe to open or close the internal flow channel of the sewage discharge pipe. Thus, by pressurizing the sewage discharge tank with air, the first switch valve is opened, and the waste in the sewage discharge tank is discharged through the sewage discharge pipe.

[0030] Preferably, a second switching valve is installed on the connecting pipe to open or block the internal flow channel of the connecting pipe.

[0031] The cleaning machine can be a floor scrubber or a sweeper, but preferably, the cleaning machine is a sweeper, with the sweeper's direction of travel as forward, and the rear side of the accommodating cavity has an opening for the sweeper to be inserted.

[0032] The sludge collection box and the reversing structure can be located on the side of the receiving cavity or above the receiving cavity, but preferably, the sludge collection box and the reversing structure are both located above the receiving cavity and are arranged at intervals along the left and right direction.

[0033] Compared with the prior art, the advantages of this invention are as follows: During the rotation of the rotating component, when the vent is connected to the connecting channel, the lower vent is connected to the second channel and the air passage. At this time, the air inlet of the fan is connected to the connecting channel through the vent. When the fan is working, the airflow sequentially enters the air inlet of the fan through the first channel, the upper vent, the vent, and the connecting channel, and then exits through the air outlet of the fan. After exiting, it sequentially passes through the air passage, the lower vent, and the second channel before being discharged, thus achieving the suction of the storage chamber. When the rotating component rotates to the point where the vent is connected to the air passage, the lower vent connects to the connecting channel. The first channel and the second channel are connected. At this time, the air inlet of the fan is connected to the second channel through the connecting channel and the lower air passage. When the fan is working, the airflow enters the air inlet of the fan through the outside, the second channel, the lower air passage and the connecting channel in sequence. After being discharged through the air outlet of the fan, it passes through the air passage, the air outlet and the upper air passage in sequence, and then is discharged into the storage chamber through the first channel, thereby filling and pressurizing the storage chamber. That is, in the entire fluid flow process, there is no need to set up other air pumps or fans to change the fluid flow direction. The operation process is convenient and highly reliable, which can better meet the needs of users. Attached Figure Description

[0034] Figure 1 This is a cross-sectional view of the cleaning system in this embodiment;

[0035] Figure 2 This is a partial structural diagram of the cleaning system in this embodiment;

[0036] Figure 3 for Figure 1 A three-dimensional exploded view of the commutation structure;

[0037] Figure 4 A cross-sectional view of the reversing structure along the lateral direction when the rotating component is in its first state;

[0038] Figure 5 A cross-sectional view of the reversing structure at another angle along the lateral direction, with the rotating component in its first state;

[0039] Figure 6 A cross-sectional view of the reversing structure along the longitudinal direction when the rotating component is in its first state;

[0040] Figure 7 A cross-sectional view of the reversing structure along the longitudinal direction at another angle, with the rotating component in its first state;

[0041] Figure 8 A cross-sectional view of the reversing structure along the lateral direction when the rotating component is in its second state;

[0042] Figure 9 A cross-sectional view of the reversing structure along the longitudinal direction when the rotating component is in its first state;

[0043] Figure 10 A cross-sectional view of the reversing structure at another angle along the lateral direction, with the rotating component in its first state;

[0044] Figure 11 This is a schematic diagram of the rotating component;

[0045] Figure 12 A structural schematic diagram of the rotating component at another angle;

[0046] Figure 13 A flowchart of the cleaning system in the suction state;

[0047] Figure 14 A flowchart showing the cleaning system in the sewage discharge state;

[0048] Figure 15 This is a flowchart of the cleaning system in the air-drying state. Detailed Implementation

[0049] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0050] like Figure 1 and Figure 2 As shown, the cleaning system of this embodiment includes a base station 5, a cleaning machine, and a reversing structure. The cleaning machine is a sweeper 6, which has a dirt storage chamber 61 with a drain outlet 611. The base station 5 includes a base 51 and a dirt collection tank 52. With the sweeper 6 moving forward, the base 51 has a rear-opening cavity 511 for placing the sweeper 6. The dirt collection tank 52 is located on the base 51. In this embodiment, both the dirt collection tank 52 and the reversing structure are located above the cavity 511 and are spaced apart along the left-right direction. The inner cavity of the dirt collection tank 52 is the storage chamber. When the cleaning machine is located inside the cavity 511, the connecting pipe 522 of the storage chamber of the dirt collection tank 52 is connected to the drain outlet 611 of the sweeper's dirt storage chamber 61.

[0051] like Figures 13 to 14 As shown, the aforementioned sludge collection tank 52 has a drain pipe 02 connected to the indoor sewer 01. A first switch valve 8 is provided on the drain pipe 02 to open or block the internal flow channel of the drain pipe 02, and a second switch valve 9 is installed on the aforementioned connecting pipe 522 to open or block the internal flow channel of the connecting pipe 522.

[0052] like Figures 3 to 10As shown, the reversing structure of this embodiment includes a housing 1, a fan 2, a rotating component, and a drive mechanism 4. The housing 1 has an upper chamber 11, a lower chamber 12, a third chamber 13, and an air vent 14. The upper chamber 11 and lower chamber 12 are arranged sequentially from top to bottom, and the third chamber 13 is located beside the upper chamber 11 and above the lower chamber 12. The air vent 14 is located below the upper chamber 11 and beside the lower chamber 12. An air inlet 141, communicating with the air outlet of the fan 2, is provided on the side wall of the air vent 14 near the bottom.

[0053] like Figures 3 to 10 As shown, the top wall of the upper chamber 11 has a first channel 111 communicating with the vent of the storage chamber, and the bottom wall of the upper chamber 11 has a second channel 112, an air passage 113, and a connecting channel 114 connecting the upper chamber 11 and the lower chamber 12, arranged circumferentially. The second channel 112 is used to connect with the outside. The fan 2 is located in the lower chamber 12. The air inlet 21 of the fan 2 is connected to the upper chamber 11 through the connecting channel 114, and the air outlet of the fan 2 is connected to the air passage 113 through the air passage 14. In this embodiment, the air passage 14 corresponds to the air passage 113, and the air passage 14 is connected to the air passage 113.

[0054] like Figure 4 , Figures 6 to 12 As shown, the rotating component is a transmission gear 3 arranged laterally within the upper chamber 11. The transmission gear 3 is mounted in the upper chamber 11 near its center via a vertically extending connecting shaft 7, the axis of which is the vertical axis of the transmission gear 3. The aforementioned second channel 112, air passage 113, and connecting channel 114 surround the periphery of the connecting shaft 7. Furthermore, the transmission gear 3 divides the upper chamber 11 into an upper air passage 11a located above the transmission gear 3 and a lower air passage 11b located below the transmission gear 3. The upper air passage 11a communicates with the first channel 111, and both the upper air passage 11a and the lower air passage 11b extend circumferentially along the housing 1. In this embodiment, as... Figure 11 As shown, the top wall of the transmission gear 3 is recessed downwards to form an upper concave cavity 33. The top wall plate of the upper chamber 11 abuts against the periphery of the upper concave cavity 33, and together with the upper concave cavity 33, forms the aforementioned upper air passage 11a. Figure 12 As shown, the bottom wall of the transmission gear 3 is recessed upward to form a concave cavity 32. The bottom wall plate of the upper chamber 11 abuts against the periphery of the concave cavity 32 and together with the concave cavity 32, forms the aforementioned lower air passage 11b.

[0055] In addition, the inner wall surface of the top wall plate of the upper chamber 11 is recessed upward to form a recessed area 116 that is consistent with the shape of the upper air passage 11a, and the first passage 111 is located on the top plate of the recessed area 116.

[0056] like Figure 6 , Figure 7 and Figure 9 As shown, the transmission gear 3 has an air inlet 31 that penetrates the wall thickness at the position corresponding to the upper air passage 11a. In this embodiment, the end of the upper air passage 11a away from the lower air passage 11b is the first end, and the end adjacent to the lower air passage 11b is the second end. The air inlet 31 is located at the first end of the upper air passage 11a. The second end of the upper air passage 11a corresponds to the lower air passage 11b, and the two share the same transverse wall plate 11c. The top surface of the transverse wall plate 11c is located below the top surface of the lower cavity 32 and below the bottom surface of the upper cavity 33.

[0057] Driven by the drive mechanism 4, the aforementioned transmission gear 3 can rotate relative to the housing 1 around its own vertical axis, thus the transmission gear 3 has the following two states: In the first state, the recessed area 116 corresponds to the upper air passage 11a, the first passage 111 corresponds to the air outlet 31, and the air outlet 31 is connected to the connecting passage 114. The lower air passage 11b surrounds the periphery of the second passage 112 and the air passage 113 (i.e., the periphery of the lower recess 32 surrounds the periphery of the second passage 112 and the air passage 113), and is connected to the aforementioned second passage 112 and the air passage 113. The transverse wall plate 11c corresponds to the second passage 112. See details below. Figure 4 , Figure 6 and Figure 7 As shown. In the second state, the vent 31 is connected to the air passage 113, and the vent 31 corresponds to the transverse wall panel 11c. The lower air passage 11b surrounds the periphery of the connecting passage 114 and the second passage 112 (i.e., the periphery of the lower cavity 32 surrounds the periphery of the connecting passage 114 and the second passage 112), and is connected to the connecting passage 114 and the second passage 112. See details. Figures 8 to 10 As shown.

[0058] The power output end of the aforementioned drive mechanism 4 is driven and connected to the transmission gear 3. In this embodiment, the drive mechanism 4 includes a motor 41, a drive gear 42, and a linkage assembly 43. The motor 41 is located below the third chamber 13 and beside the lower chamber 12. Specifically, the motor 41 has an output shaft arranged parallel to and spaced apart from the vertical axis of the transmission gear 3. The upper end of the output shaft and the drive gear 42 are both located within the third chamber 13, and the drive gear 42 is mounted on the output shaft of the motor 41. The peripheral wall of the upper chamber 11 has through holes for the teeth of the transmission gear 3 to pass into the third chamber 13. The linkage assembly 43 and the drive gear 42 are both located within the third chamber 13. The aforementioned power input end is linked to the drive gear 42, and the power output end of the linkage assembly 43 is linked to the transmission gear 3. In this embodiment, the linkage assembly 43 includes a vertically extending mounting shaft 431 and a first linkage gear 432 and a second linkage gear 433 mounted on the mounting shaft 431 and rotating synchronously. The mounting shaft 431 is arranged side by side with the output shaft at intervals, and is located between the output shaft and the connecting shaft 7. The aforementioned first linkage gear 432 is located below the second linkage gear 433, and the first linkage gear 432 meshes with the driving gear 42, while the second linkage gear 433 meshes with the transmission gear 3.

[0059] To limit the rotational position of the transmission gear 3, the inner wall of the top wall plate of the upper chamber 11 is recessed upward to form a guide channel 115 extending along the rotational direction of the rotating component. The top surface of the rotating component has a guide rod 34 extending upward and located within the guide channel 115. When the transmission gear 3 is in the first state, such as... Figure 5 As shown, the guide rod 34 abuts against the first end face of the guide channel 115; when the transmission gear 3 is in the second state, as... Figure 10 As shown, the guide rod 34 abuts against the second end face of the guide channel 115. The aforementioned recessed area 116 and the guide channel 115 are arranged at circumferential intervals along the connecting shaft 7.

[0060] During the rotation of the transmission gear 3, when the air passage 31 on the transmission gear 3 is connected to the connecting channel 114, the lower air passage 11b is connected to the second channel 112 and the air passage 113. At this time, the air inlet 21 of the fan 2 is connected to the connecting channel 114 through the air passage 31. When the fan 2 is working, the airflow sequentially enters the air inlet 21 of the fan 2 through the first channel 111, the upper air passage 11a, the air passage 31, and the connecting channel 114, and then exits through the air outlet of the fan 2. After exiting, it sequentially passes through the air passage chamber 14, the air passage 113, the lower air passage 11b, and the second channel 112 before being discharged. The airflow path is detailed in [reference needed]. Figure 7 The direction indicated by the hollow arrow signifies the suction of the storage chamber. For example... Figure 13As shown, when the second switch valve 9 is opened and the first switch valve 8 is closed, the fan 2 operates, sucking the garbage in the sludge storage chamber 61 of the sweeper 6 into the storage chamber of the sludge collection box 52 through the connecting pipe 522, thus realizing the sludge suction function.

[0061] When the transmission gear 3 rotates to the point where its air inlet 31 connects with the air passage 113, the lower air passage 11b connects with the connecting passage 114 and the second passage 112. At this time, the air inlet 21 of the fan 2 is connected to the second passage 112 through the connecting passage 114 and the lower air passage 11b. When the fan 2 is working, the airflow sequentially passes through the outside, the second passage 112, the lower air passage 11b, and the connecting passage 114 into the air inlet 21 of the fan 2. After being discharged through the air outlet of the fan 2, it sequentially passes through the air passage 14, the air passage 113, the air inlet 31, and the upper air passage 11a, and then is discharged into the storage chamber through the first passage 111, thereby filling and pressurizing the storage chamber. For details of the airflow path, see [link to relevant documentation]. Figure 9 The direction indicated by the hollow arrow. For example... Figure 14 As shown, when the second switch valve 9 is closed and the first switch valve 8 is opened, the blower 2 pressurizes the storage chamber through the first channel 111, thereby guiding the garbage in the storage chamber of the sludge collection box into the sewer 01 through the drain pipe 02, achieving the purpose of sewage discharge. Figure 15 As shown, when the first switch valve 8 is closed and the second switch valve 9 is opened, the fan 2 discharges the outside airflow into the sludge storage chamber through the first channel 111 and the connecting pipe 522. Through long-term low-volume blowing, the sludge collection box, the sludge storage chamber and the brush head cavity of the sweeper can be dried to avoid residual water.

[0062] Throughout the entire fluid flow process described above, the direction of fluid flow can be changed without the need for additional air pumps. The operation is convenient and highly reliable, better meeting the needs of users.

[0063] The specification and claims of this invention use terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," to describe various exemplary structural parts and elements of the invention. However, these terms are used herein merely for ease of explanation and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this invention can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0064] The term "fluid connectivity" as used in this invention refers to the spatial relationship between two components or parts (hereinafter referred to as the first part and the second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow from the first part along a flow path and / or be transported to the second part. This can be a direct connection between the first part and the second part, or an indirect connection between the first part and the second part through at least one third party. This third party can be a fluid channel such as a pipe, channel, conduit, guide, hole, or groove, or a chamber or combination thereof that allows fluid to flow through.

Claims

1. A reversing structure for a cleaning system, used to reversing the flow of fluid through a storage chamber, characterized in that, Including: The shell (1) has an upper chamber (11) and a lower chamber (12) arranged sequentially from top to bottom inside. The top wall of the upper chamber (11) has a first channel (111) for communicating with the storage chamber, and the bottom wall of the upper chamber (11) has a second channel (112), an air passage (113) and a connecting channel (114) for communicating with the upper chamber (11) and the lower chamber (12) arranged circumferentially. The second channel (112) is used to communicate with the outside. A fan (2) is located in the lower chamber (12). The air inlet (21) of the fan (2) is connected to the upper chamber (11) through the connecting channel (114), and the air outlet of the fan (2) is in fluid communication with the air passage (113). A rotating component is laterally arranged within the upper chamber (11) and divides the upper chamber (11) into an upper air passage (11a) above the rotating component and a lower air passage (11b) below the rotating component. The upper air passage (11a) is connected to the first passage (111) and extends along the circumference of the housing (1) along with the lower air passage (11b). The rotating component has an air outlet (31) that penetrates its wall thickness at a position corresponding to the upper air passage (11a). The rotating component is arranged to rotate relative to the housing (1) about its vertical axis, thus the rotating component has the following two states: In the first state, the air outlet (31) is connected to the connecting channel (114), and the lower air outlet channel (11b) surrounds the second channel (112) and the air passage channel (113) and is connected to the second channel (112) and the air passage channel (113). In the second state, the air outlet (31) is connected to the air passage (113), and the lower air passage (11b) surrounds the periphery of the connecting passage (114) and the second passage (112) and is connected to the connecting passage (114) and the second passage (112).

2. The commutation structure according to claim 1, characterized in that: The second channel (112), the air passage (113), and the connecting channel (114) surround the periphery of the vertical axis of the rotating member.

3. The commutation structure according to claim 2, characterized in that: The bottom wall of the rotating component is recessed upward to form a concave cavity (32). The bottom wall plate of the upper chamber (11) abuts against the periphery of the concave cavity (32) and together with the concave cavity (32) forms the lower air passage (11b). When the rotating component is in the first state, the periphery of the concave cavity (32) surrounds the periphery of the second passage (112) and the air passage (113). When the rotating component is in the second state, the periphery of the concave cavity (32) surrounds the periphery of the connecting passage (114) and the second passage (112).

4. The commutation structure according to claim 3, characterized in that: The top wall of the rotating component is recessed downward to form an upper concave cavity (33). The top wall plate of the upper chamber (11) abuts against the periphery of the upper concave cavity (33) and surrounds the upper concave cavity (33) to form the upper air passage (11a).

5. The commutation structure according to claim 4, characterized in that: The upper air passage (11a) has a first end away from the lower air passage (11b) and a second end adjacent to the lower air passage (11b). The air outlet (31) is located at the first end of the upper air passage (11a). The second end of the upper air passage (11a) corresponds to the lower air passage (11b), and both share the same transverse wall plate (11c). The top surface of the transverse wall plate (11c) is below the top surface of the lower concave cavity (32) and below the bottom surface of the upper concave cavity (33). When the rotating member is in the first state, the transverse wall plate (11c) corresponds to the second channel (112). When the rotating member is in the second state, the transverse wall plate (11c) corresponds to the air outlet (31).

6. The commutation structure according to claim 1, characterized in that: The inner wall of the top wall plate of the upper chamber (11) is recessed upward to form a guide channel (115) extending along the rotation direction of the rotating member. The top surface of the rotating member has a guide rod (34) extending upward and located in the guide channel (115). When the rotating member is in a first state, the guide rod (34) abuts against the first end face of the guide channel (115). When the rotating member is in a second state, the guide rod (34) abuts against the second end face of the guide channel (115).

7. The commutation structure according to claim 1, characterized in that: The inner wall of the top wall plate of the upper chamber (11) is recessed upward to form a recessed area (116) that is consistent with the shape of the upper air passage (11a). The first passage (111) is located on the top plate of the recessed area (116). When the rotating member is in the first state, the recessed area (116) corresponds to the upper air passage (11a), and the first passage (111) corresponds to the air outlet (31).

8. The commutation structure according to claim 1, characterized in that: The housing (1) has an air passage (14) connected to the air passage (113) at a position corresponding to the air passage (113). The air passage (14) is located below the upper chamber (11) and on the side of the lower chamber (12). An air inlet (141) connected to the air outlet of the fan (2) is opened on the side wall of the air passage (14) near the bottom.

9. The commutation structure according to any one of claims 1 to 8, characterized in that: It also includes a drive mechanism (4) for driving the rotating component to rotate, and the power output end of the drive mechanism (4) is connected to the rotating component.

10. The commutation structure according to claim 9, characterized in that: The rotating component is a transmission gear (3). The transmission gear (3) is installed in the upper chamber (11) near the center via a vertically extending connecting shaft (7). The axis of the connecting shaft (7) is the vertical axis of the rotating component. The driving mechanism (4) includes a motor (41) and a drive gear (42). The motor (41) has an output shaft arranged parallel to and spaced apart from the vertical axis of the rotating component. The drive gear (42) is installed on the output shaft of the motor (41) and meshes with the transmission gear (3).

11. The commutation structure according to claim 10, characterized in that: It also includes a linkage component (43), the power input end of which is linked with the drive gear (42), and the power output end of which is linked with the transmission gear (3).

12. The commutation structure according to claim 11, characterized in that: The linkage assembly (43) includes a vertically extending mounting shaft (431) and a first linkage gear (432) and a second linkage gear (433) mounted on the mounting shaft (431) and rotating synchronously. The first linkage gear (432) is located below the second linkage gear (433) and meshes with the driving gear (42). The second linkage gear (433) meshes with the transmission gear (3).

13. The commutation structure according to claim 10, characterized in that: The housing (1) has a third chamber (13) located beside the upper chamber (11). The peripheral wall of the upper chamber (11) has a through hole for the teeth of the transmission gear (3) to pass into the third chamber (13). At least part of the drive gear (42) and the output shaft are located in the third chamber (13).

14. The commutation structure according to claim 13, characterized in that: The motor (41) is located below the third chamber (13) and beside the lower chamber (12), with the upper end of the output shaft of the motor (41) located inside the third chamber (13).

15. A cleaning system comprising a base station (5) and a cleaning machine, wherein the cleaning machine has a sludge storage chamber (61) and a drain outlet (611), the base station (5) comprising a base (51) and a sludge collection box (52), the sludge collection box (52) being disposed on the base (51), and the inner cavity of the sludge collection box (52) being the storage chamber, the base (51) having a receiving cavity (511) for placing the cleaning machine therein, wherein, when the cleaning machine is located in the receiving cavity (511), the connecting pipe (522) of the storage chamber of the sludge collection box (52) is connected to the drain outlet (611) of the sludge storage chamber (61), characterized in that: It also includes a reversing structure as described in any one of claims 1 to 14, wherein the first channel (111) of the reversing structure is connected to the vent (523) of the storage chamber.

16. The cleaning system according to claim 15, characterized in that: The sludge collection box (52) is provided with a sludge pipe (02), and a first switch valve (8) is installed on the sludge pipe (02) to open or block the internal flow channel of the sludge pipe (02).

17. The cleaning system according to claim 16, characterized in that: A second switching valve (9) is installed on the connecting pipe (522) to open or block the internal flow channel of the connecting pipe (522).

18. The cleaning system according to claim 15, characterized in that: The cleaning machine is a sweeper (6). With the direction of the sweeper (6) forward, the rear side of the accommodating cavity (511) has an opening for the sweeper (6) to be inserted.

19. The cleaning system according to claim 18, characterized in that: The sludge collection box (52) and the reversing structure are both located above the accommodating cavity (511), and are arranged at intervals along the left and right directions.

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