Reversing structure for cleaning system and cleaning system

Abstract

The invention relates to a reversing structure for a cleaning system and the cleaning system.The reversing structure for the cleaning system comprises a shell, a draught fan and a rotating piece, and the rotating piece is arranged to be capable of rotating around the vertical axis of the rotating piece relative to the shell, so that the rotating piece has the following two states that in the first state, the rotating piece can rotate around the vertical axis of the rotating piece; the air passing opening is communicated with the communicating channel, and the lower air passing channel surrounds the periphery of the second channel and the air passing channel and is communicated with the second channel and the air passing channel; and in the second state, the air passing opening is communicated with the air passing channel, and the lower air passing channel surrounds the periphery of the communicating channel and the second channel and is communicated with the communicating channel and the second channel. The reversing structure can change the flowing direction of fluid, and other air pumps or fans do not need to be additionally arranged.

Description

Technical Field

[0001] The invention belongs to the technical field of household washing and cleaning, and in particular relates to a reversing structure for a cleaning system and a cleaning system. Background Art

[0002] The current cleaning system at least includes a cleaning machine. In order to clean and recycle the garbage in the cleaning machine, the cleaning system also includes a base station. The base station recycles the sewage garbage in the inner cavity of the cleaning machine and directly discharges the sewage garbage into the sewer.

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

[0004] The patent has the following defects:

[0005] The sewage and garbage inside the cleaning robot are pumped into the sewage tank through a water pump. The water pump can only flow in one direction and cannot change the direction of fluid flow. When direct discharge is required, in order to increase the direct discharge force, a separate drainage pump is usually required to achieve drainage. That is, the use of two pumps increases the complexity of additional pipeline settings, and also increases 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 flow direction of a fluid in view of the current status of the above-mentioned prior art.

[0007] The second technical problem to be solved by the present invention is to provide a cleaning system which changes the flow direction of the fluid to achieve the purpose of sucking dirt and drying at the same time.

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

[0009] A shell, wherein an upper chamber and a lower chamber are arranged in sequence from top to bottom, the top wall plate of the upper chamber has a first channel for communicating with the storage chamber, and the bottom wall plate of the upper chamber has a second channel, an air passage, and a communication channel for communicating the upper chamber and the lower chamber arranged at intervals along the circumferential direction, and the second channel is used to communicate with the outside;

[0010] A fan, which is located in the lower chamber, the air inlet of the fan is connected to the upper chamber through the connecting passage, and the air outlet of the fan is fluidly connected to the air passage;

[0011] A rotating member is arranged transversely in the upper chamber and divides the upper chamber into an upper air passage located above the rotating member and a lower air passage located below the rotating member. The upper air passage is connected to the first passage and extends along the circumference of the shell together with the lower air passage. The rotating member is provided with an air port penetrating the wall thickness at a position corresponding to the upper air passage. The rotating member is arranged to be rotatable relative to the shell around its vertical axis, so that the rotating member has the following two states:

[0012] In the first state, the air port is connected to the communication channel, and the lower air channel surrounds the second channel and the air outlet channel and is connected to the second channel and the air outlet channel;

[0013] In the second state, the air passage is communicated with the air passage, and the lower air passage surrounds the periphery of the connecting passage and the second passage, and is communicated with the connecting passage and the second passage.

[0014] In this way, during the rotation of the rotating part, when the air port is connected to the connecting channel, the lower air port is connected to the second channel and the air outlet channel. At this time, the air inlet of the fan is connected to the connecting channel through the air port. When the fan is working, the air flow enters the air inlet of the fan through the first channel, the upper air port, the air port and the connecting channel in sequence, and then is discharged through the air outlet of the fan, and then is discharged through the air outlet channel, the lower air port and the second channel in sequence, thereby realizing the suction of the storage chamber; when the rotating part rotates to the point where the air port is connected to the air outlet channel, the lower air port is connected to the connecting channel and the second channel The air passages are connected, at this time, the air inlet of the fan is connected with 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, and is then discharged through the air outlet of the fan. After passing through the air passage, the air port and the upper air passage in sequence, the air is discharged into the storage chamber through the first channel, thereby inflating and pressurizing the storage chamber. That is, during the entire fluid flow process, the direction of the fluid flow can be changed without the need to additionally set up other air pumps. The operation process is convenient and reliable, and can better meet the needs of users.

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

[0016] There are many forms of forming the lower air passage. A lower concave cavity that is recessed upward may be formed on the bottom wall of the rotating part, an extension wall that extends downward may be provided on the bottom wall of the rotating part, and the extension wall and the bottom wall of the upper chamber may form a lower concave cavity together. However, preferably, the bottom wall of the rotating part is recessed upward to form a lower concave cavity, the bottom wall plate of the upper chamber abuts against the peripheral edge of the lower concave cavity, and is enclosed with the lower concave cavity to form the lower air passage. When the rotating part is in the first state, the peripheral edge of the lower concave cavity surrounds the periphery of the second channel and the air passage. When the rotating part is in the second state, the peripheral edge of the lower concave cavity surrounds the periphery of the connecting channel and the second channel.

[0017] There are many forms of forming the lower air passage. It can be formed in the form of an upper concave cavity that is recessed downward on the top wall of the rotating part, or an extension wall that extends upward is provided on the top wall of the rotating part, and the extension wall and the top wall of the upper chamber form a lower concave cavity together. However, preferably, the top wall of the rotating part is recessed downward to form an upper concave cavity, and the top wall plate of the upper chamber abuts against the peripheral edge of the upper concave cavity, and encloses the upper concave cavity to form the upper air passage.

[0018] There are many settings for the air outlet. It can be set at a position of the upper air channel away from the first end, or at the first end. However, preferably, the end of the upper air channel away from the lower air channel is the first end, and the end adjacent to the lower air channel is the second end. The air outlet is located at the first end of the upper air channel, and the second end of the upper air channel corresponds to the lower air channel, and the two share the same transverse wall plate. The top surface of the transverse wall plate is below the top surface of the lower concave cavity and below the bottom surface of the upper concave cavity. When the rotating member is in the first state, the transverse wall plate corresponds to the second channel, and when the rotating member is in the second state, the transverse wall plate corresponds to the air outlet.

[0019] In order to limit the rotational stroke of the rotating part, the inner wall surface of the top wall plate of the upper chamber is recessed upward to form a guide channel extending along the rotation direction of the rotating part. The top surface of the rotating part is provided with a guide rod extending upward and located in the guide channel. When the rotating part is in the first state, the guide rod abuts against the first end surface of the guide channel. When the rotating part is in the second state, the guide rod abuts against the second end surface 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 consistent with the shape of the upper air passage, and the first channel is located on the top plate of the recessed area. When the rotating part is in the first state, the recessed area corresponds to the upper air passage, and the first channel corresponds to the air port.

[0021] In order to facilitate the introduction of the gas exhausted by the fan into the air passage, the shell has an air chamber connected to the air passage at a position corresponding to the air passage. The air chamber is arranged below the upper chamber and beside the lower chamber. The side wall of the air chamber is provided with an air inlet connected to the air outlet of the fan at a position adjacent to the bottom.

[0022] There are many ways to achieve the rotation of the rotating part, which can be in the form of manual pushing or active driving. However, from the perspective of operational reliability and efficiency, it is preferably also provided with a driving mechanism for driving the rotating part to rotate, and the power output end of the driving mechanism is connected to the driving force of the rotating part.

[0023] The rotating member may be in the form of a transmission gear, or may be fixed relative to the transmission gear. However, from the perspective of simple structure and reduced volume, preferably, the rotating member is a transmission gear, and the transmission gear is installed in the upper chamber near the center through a vertically extending connecting shaft, and the axis of the connecting shaft is the vertical axis of the rotating member. The driving mechanism includes a motor and a driving gear, and the motor has an output shaft arranged side by side and spaced apart from the vertical axis of the rotating member. The driving gear is installed on the output shaft of the motor and meshes with the transmission gear.

[0024] The driving gear and the transmission gear may be directly meshed or indirectly meshed through a linkage assembly. Preferably, a linkage assembly is further included, wherein the power input end of the linkage assembly is linked to the driving gear, and the power output end of the linkage assembly is linked to the transmission gear.

[0025] The linkage assembly can be in the form of a single linkage gear or in the form of two coaxially arranged linkage gears, but 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 the first linkage gear is meshed with the driving gear, and the second linkage gear is meshed with the transmission gear.

[0026] In order to protect the driving gear, the shell has a third chamber located next to the upper chamber. The peripheral wall of the upper chamber is provided with a through hole for the teeth of the transmission gear to penetrate into the third chamber. The driving gear and the output shaft are at least partially located in the third chamber.

[0027] The motor may be located above or below the third chamber, but preferably, the motor is located below the third chamber and beside the lower chamber, and the upper end of the output shaft of the motor is located in the third chamber.

[0028] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: a cleaning system, including a base station and a cleaning machine, the cleaning machine has a dirt storage chamber inside, the dirt storage chamber has a sewage outlet, the base station includes a base and a dirt collecting box, the dirt collecting box is arranged on the base, and the inner cavity of the dirt collecting box is the storage chamber, the base has a accommodating chamber for the cleaning machine to be placed therein, when the cleaning machine is located in the accommodating chamber, the connecting pipe of the storage chamber of the dirt collecting box is connected to the sewage outlet of the dirt storage chamber, and it is characterized in that: it also includes the reversing structure, and the first channel of the reversing structure is connected to the vent of the storage chamber.

[0029] In order to realize the sewage discharge function, the sewage collecting box is provided with a sewage discharge pipe, and the sewage discharge pipe is provided with a first switch valve for opening or blocking the internal flow channel of the sewage discharge pipe. Thus, by inflating and pressurizing the sewage discharge box, the first switch valve is opened, and the garbage in the sewage discharge box is discharged through the sewage discharge pipe.

[0030] Preferably, a second switch valve for opening or blocking an internal flow channel of the connecting pipe is installed on the connecting pipe.

[0031] The cleaning machine may be a scrubber or a sweeper, but preferably, the cleaning machine is a sweeper, with the sweeper's moving direction as the front, and the rear side of the accommodating cavity having an opening for the sweeper to be placed therein.

[0032] The dirt collecting box and the reversing structure may be located beside the accommodating cavity or above the accommodating cavity. However, preferably, the dirt collecting box and the reversing structure are both located above the accommodating cavity and are spaced apart in the left-right direction.

[0033] Compared with the prior art, the advantages of the present invention are as follows: during the rotation of the rotating part, when the air port is connected to the connecting channel, the lower air port is connected to the second channel and the air outlet channel. At this time, the air inlet of the fan is connected to the connecting channel through the air port. When the fan is working, the air flow enters the air inlet of the fan through the first channel, the upper air port, the air port and the connecting channel in sequence, and then is discharged through the air outlet of the fan, and then is discharged through the air outlet channel, the lower air port and the second channel in sequence, thereby realizing the suction of the storage chamber; when the rotating part rotates until the air port is connected to the air outlet channel, the lower air port is connected to the connecting channel, and the air outlet channel is connected to the lower air port. The air passage is connected with the second channel. At this time, the air inlet of the fan is connected with 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, and is then discharged through the air outlet of the fan. After passing through the air passage, the air outlet and the upper air passage in sequence, the air is discharged into the storage chamber through the first channel, thereby inflating and pressurizing the storage chamber. That is, during the entire fluid flow process, the direction of fluid flow can be changed without the need to additionally set up other air pumps or fans. The operation process is convenient and reliable, and can better meet the needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0036] Figure 3 for Figure 1 Schematic diagram of the three-dimensional decomposition structure of the middle commutation structure;

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

[0038] Figure 5 A cross-sectional view of the reversing structure taken along the transverse direction at another angle when the rotating member is in the first state;

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

[0040] Figure 7 A cross-sectional view of the reversing structure along the longitudinal direction at another angle when the rotating member is in the first state;

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

[0042] Fig. 9 A cross-sectional view of the reversing structure along the longitudinal direction when the rotating member is in the first state;

[0043] Fig.10 A cross-sectional view of the reversing structure taken along the transverse direction at another angle when the rotating member is in the first state;

[0044] Fig.11 It is a structural schematic diagram of a rotating part;

[0045] Fig.12 It is a structural schematic diagram of the rotating part from another angle;

[0046] Fig.13 It is a flow chart of the cleaning system in the dirt suction state;

[0047] Fig.14 It is a flow chart of the cleaning system in the sewage discharge state;

[0048] Fig.15 This is a flow chart of the cleaning system in the air-drying state. DETAILED DESCRIPTION

[0049] The present invention is further described in detail below with reference to the accompanying drawings.

[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. Among them, the cleaning machine is a sweeping machine 6, and the interior of the aforementioned sweeping machine 6 has a dirt storage chamber 61, and the dirt storage chamber 61 has a sewage outlet 611. The base station 5 includes a base 51 and a dirt collection box 52. With the direction of the sweeping machine 6 as the front, the above-mentioned base 51 has a accommodating chamber 511 with a rear opening for the sweeping machine 6 to be placed therein. The sewage collection box 52 is arranged on the base 51. In this embodiment, the sewage collection box 52 and the reversing structure are both located above the accommodating chamber 511, and the two are arranged at intervals along the left and right directions. The inner cavity of the aforementioned sewage collection box 52 is the storage chamber. When the cleaning machine is located in the accommodating chamber 511, the connecting pipe 522 of the storage chamber of the sewage collection box 52 is connected to the sewage outlet 611 of the sewage storage chamber 61 of the sweeping machine.

[0051] like Figure 13 to Figure 14 As shown, the sewage collecting box 52 has a sewage pipe 02 connected to the indoor sewer 01, and the sewage pipe 02 is provided with a first switch valve 8 for opening or blocking the internal flow channel of the sewage pipe 02, and the connecting pipe 522 is installed with a second switch valve 9 for opening or blocking 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 part and a driving mechanism 4. The housing 1 has an upper chamber 11, a lower chamber 12, a third chamber 13 and an air chamber 14. The upper chamber 11 and the lower chamber 12 are arranged in sequence from top to bottom, and the third chamber 13 is located beside the upper chamber 11 and above the lower chamber 12. The air chamber 14 is arranged below the upper chamber 11 and beside the lower chamber 12, and an air inlet 141 connected to the air outlet of the fan 2 is opened at a position near the bottom of the side wall of the air chamber 14.

[0053] like Figures 3 to 10 As shown, the top wall plate of the upper chamber 11 has a first channel 111 connected to the vent of the storage chamber, and the bottom wall plate 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 at intervals along the circumference, and the second channel 112 is used to communicate with the outside. The fan 2 is located in the lower chamber 12, and 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 chamber 14. In this embodiment, the air chamber 14 corresponds to the air passage 113, and the air chamber 14 is connected to the above-mentioned air passage 113.

[0054] like Figure 4 , Figures 6 to 12 As shown, the rotating part is a transmission gear 3 arranged horizontally in the upper chamber 11. The transmission gear 3 is installed in the upper chamber 11 through a vertically extending connecting shaft 7 near the center, and the axis of the connecting shaft 7 is the vertical axis of the transmission gear 3. The second channel 112, the air passage 113 and the connecting channel 114 surround the periphery of the connecting shaft 7. In addition, 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 is connected to the first channel 111, and the upper air passage 11a and the lower air passage 11b both extend along the circumference of the shell 1. In this embodiment, as Fig.11 As shown, the top wall of the transmission gear 3 is recessed downward to form an upper cavity 33, and the top wall plate of the upper chamber 11 abuts against the periphery of the upper cavity 33 and encloses the upper cavity 33 to form the aforementioned upper air passage 11a. Fig.12 As shown, the bottom wall of the transmission gear 3 is recessed upward to form a lower concave cavity 32 , and the bottom wall plate of the upper chamber 11 abuts against the periphery of the lower concave cavity 32 , and is enclosed with the lower concave cavity 32 to form the above-mentioned lower air passage 11 b.

[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 gas passage 11 a , and the first passage 111 is located on the top plate of the recessed area 116 .

[0056] like Figure 6 , Figure 7 and Fig. 9 As shown, the transmission gear 3 is provided with an air port 31 penetrating through the wall thickness at a position corresponding to the upper air passage 11a. In the present 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 port 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 concave cavity 32 and below the bottom surface of the upper concave cavity 33.

[0057] The transmission gear 3 can rotate relative to the housing 1 around its own vertical axis under the drive of the driving mechanism 4, so that 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 channel 111 corresponds to the air port 31, and the air port 31 is connected to the connecting channel 114, the lower air passage 11b surrounds the periphery of the second channel 112 and the air passage 113 (that is, the periphery of the lower concave cavity 32 surrounds the periphery of the second channel 112 and the air passage 113), and is connected to the aforementioned second channel 112 and the air passage 113, and the transverse wall plate 11c corresponds to the second channel 112, see Figure 4 , Figure 6 and Figure 7 In the second state, the air port 31 is connected to the air passage 113, and the air port 31 corresponds to the horizontal wall plate 11c, and the lower air passage 11b surrounds the periphery of the connecting passage 114 and the second passage 112 (that is, the periphery of the lower concave 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 Figures 8 to 10 shown.

[0058] The power output end of the driving mechanism 4 is connected to the transmission gear 3. In this embodiment, the driving mechanism 4 includes a motor 41, a driving 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 side by side with the vertical axis of the transmission gear 3, the upper end of the output shaft and the driving gear 42 are both located in the third chamber 13, and the driving gear 42 is mounted on the output shaft of the motor 41. The peripheral wall of the upper chamber 11 is provided with a through hole for the tooth portion of the transmission gear 3 to penetrate into the third chamber 13. The linkage assembly 43 and the driving gear 42 are both located in the third chamber 13, the power input end is linked with the driving gear 42, and the power output end of the linkage assembly 43 is linked with 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 that are mounted on the mounting shaft 431 and rotate synchronously. The mounting shaft 431 is arranged side by side with the output shaft and is located between the output shaft and the connecting shaft 7. The first linkage gear 432 is located below the second linkage gear 433, and the first linkage gear 432 is meshed with the driving gear 42, and the second linkage gear 433 is meshed with the transmission gear 3.

[0059] In order to limit the rotation position of the transmission gear 3, the inner wall surface 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 is provided with a guide rod 34 extending upward and located in the guide channel 115. When the transmission gear 3 is in the first state, Figure 5 As shown, the guide rod 34 abuts against the first end surface of the guide channel 115; when the transmission gear 3 is in the second state, as shown in FIG. Fig.10 As shown, the guide rod 34 abuts against the second end surface of the guide channel 115. The above-mentioned recessed area 116 and the guide channel 115 are arranged at intervals along the circumference of the connecting shaft 7.

[0060] During the rotation of the transmission gear 3, when the air port 31 on the transmission gear 3 is connected with the connecting channel 114, the lower air port 11b is connected with the second channel 112 and the air outlet channel 113. At this time, the air inlet 21 of the fan 2 is connected with the connecting channel 114 through the air port 31. When the fan 2 is working, the air flow enters the air inlet 21 of the fan 2 through the first channel 111, the upper air port 11a, the air port 31 and the connecting channel 114 in sequence, and then is discharged through the air outlet of the fan 2, and then is discharged through the air outlet chamber 14, the air outlet channel 113, the lower air port 11b and the second channel 112 in sequence. The air flow path is detailed in FIG. Figure 7 The direction indicated by the hollow arrow realizes the suction of the storage chamber. Fig.13As shown, when the second switch valve 9 is opened and the first switch valve 8 is closed, the fan 2 works to suck the garbage in the dirt storage chamber 61 of the sweeper 6 into the storage chamber of the dirt collection box 52 through the connecting pipe 522, thus realizing the dirt suction function.

[0061] When the transmission gear 3 rotates until the air port 31 thereon is connected with the air passage 113, the lower air passage 11b is connected with the connecting passage 114 and the second passage 112. At this time, the air inlet 21 of the fan 2 is connected with the second passage 112 through the connecting passage 114 and the lower air passage 11b. When the fan 2 is working, the airflow enters the air inlet 21 of the fan 2 through the outside, the second passage 112, the lower air passage 11b and the connecting passage 114 in sequence, and then is discharged through the air outlet of the fan 2, and then passes through the air chamber 14, the air passage 113, the air port 31 and the upper air passage 11a in sequence, and is discharged into the storage chamber through the first passage 111, thereby inflating and pressurizing the storage chamber. For details of the airflow path, see Fig. 9 The hollow arrow points to the direction. Fig.14 As shown, when the second switch valve 9 is closed and the first switch valve 8 is opened, the fan 2 inflates and pressurizes the storage chamber through the first channel 111, thereby guiding the garbage in the storage chamber of the garbage collecting box through the sewage pipe 02 into the sewer 01 to achieve the purpose of sewage discharge. Fig.15 As shown, when the first switch valve 8 is closed and the second switch valve 9 is opened, the fan 2 discharges the external airflow into the dirt storage chamber through the first channel 111 and the connecting pipe 522. Through long-term low-volume blowing, the dirt collecting box, the dirt storage chamber and the brush head cavity of the sweeper can be dried to avoid residual water.

[0062] During the entire fluid flow process described above, the flow direction of the fluid can be changed without the need to set up additional air pumps. The operation process is convenient and reliable, and can better meet the needs of users.

[0063] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0064] The "fluid connection" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A reversing structure for a cleaning system, used to reverse the flow of a fluid through a flow channel of a storage chamber, characterized in that: Included are: A shell (1) having an upper chamber (11) and a lower chamber (12) arranged in sequence from top to bottom, the top wall of the upper chamber (11) having a first channel (111) for communicating with the storage chamber, and the bottom wall of the upper chamber (11) having second channels (112) arranged at intervals along the circumferential direction, an air passage (113) and a communication channel (114) for communicating with the upper chamber (11) and the lower chamber (12), the second channel (112) being used for communicating 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 passage (114), and the air outlet of the fan (2) is fluidically connected to the air outlet passage (113); A rotating member is arranged transversely in the upper chamber (11) and divides the upper chamber (11) into an upper air passage (11a) located above the rotating member and a lower air passage (11b) located below the rotating member. The upper air passage (11a) is connected to the first passage (111) and extends along the circumference of the shell (1) with the lower air passage (11b). The rotating member is provided with an air passage (31) penetrating the wall thickness thereof at a position corresponding to the upper air passage (11a). The rotating member is arranged to be rotatable relative to the shell (1) around its vertical axis, so that the rotating member has the following two states: In a first state, the air passage (31) is connected to the communication channel (114), and the lower air passage (11b) surrounds the second channel (112) and the air outlet channel (113), and is connected to the second channel (112) and the air outlet channel (113); In the second state, the air passage (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 communication 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 member is recessed upward to form a lower concave cavity (32); the bottom wall plate of the upper chamber (11) abuts against the peripheral edge of the lower concave cavity (32) and is enclosed with the lower concave cavity (32) to form the lower air passage (11b); when the rotating member is in a first state, the peripheral edge of the lower concave cavity (32) surrounds the periphery of the second passage (112) and the air passage (113); when the rotating member is in a second state, the peripheral edge of the lower 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 member is recessed downward to form an upper concave cavity (33), and the top wall plate of the upper chamber (11) abuts against the peripheral edge of the upper concave cavity (33) and is enclosed with the upper concave cavity (33) to form the upper air passage (11a).

5. The commutation structure according to claim 4, characterized in that: 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 port (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 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 port (31).

6. The commutation structure according to claim 1, characterized in that: The inner wall surface 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 is provided with 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 a first end surface of the guide channel (115). When the rotating member is in a second state, the guide rod (34) abuts against a second end surface of the guide channel (115).

7. The commutation structure according to claim 1, characterized in that: The inner wall surface of the top wall plate of the upper chamber (11) is recessed upward to form a recessed area (116) having the same shape as 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 port (31).

8. The commutation structure according to claim 1, characterized in that: The housing (1) has an air chamber (14) in communication with the air passage (113) at a position corresponding to the air passage (113); the air chamber (14) is arranged below the upper chamber (11) and beside the lower chamber (12); and an air inlet (141) in communication with an air outlet of the fan (2) is provided at a position adjacent to the bottom of a side wall of the air chamber (14).

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

10. The commutation structure according to claim 9, characterized in that: The rotating member is a transmission gear (3), and the transmission gear (3) is installed in the upper chamber (11) near the center through a vertically extending connecting shaft (7), and the axis of the connecting shaft (7) is the vertical axis of the rotating member. The driving mechanism (4) includes a motor (41) and a driving gear (42), and the motor (41) has an output shaft arranged in parallel with the vertical axis of the rotating member. The driving 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), wherein the power input end of the linkage component (43) is linked to the driving gear (42), and the power output end of the linkage component (43) is linked to the transmission gear (3).

12. The commutation structure according to claim 11, characterized in that: The linkage assembly (43) comprises 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, wherein the first linkage gear (432) is located below the second linkage gear (433), and the first linkage gear (432) is meshed with the driving gear (42), and the second linkage gear (433) is meshed 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 next to the upper chamber (11). The peripheral wall of the upper chamber (11) is provided with a through hole for the tooth portion of the transmission gear (3) to penetrate into the third chamber (13). The driving gear (42) and at least part of 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), and the upper end of the output shaft of the motor (41) is located in the third chamber (13).

15. A cleaning system, comprising a base station (5) and a cleaning machine, wherein the cleaning machine has a dirt storage chamber (61) inside, and the dirt storage chamber (61) has a dirt discharge port (611), the base station (5) comprises a pedestal (51) and a dirt collection box (52), the dirt collection box (52) is arranged on the pedestal (51), and the inner cavity of the dirt collection box (52) is the storage chamber, the pedestal (51) has a receiving chamber (511) for the cleaning machine to be placed therein, when the cleaning machine is located in the receiving chamber (511), the connecting pipe (522) of the storage chamber of the dirt collection box (52) is connected to the dirt discharge port (611) of the dirt storage chamber (61), characterized in that: It also comprises a reversing structure as claimed 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 sewage collecting box (52) is provided with a sewage discharge pipe (02), and the sewage discharge pipe (02) is installed with a first switch valve (8) for opening or blocking the internal flow channel of the sewage discharge pipe (02).

17. The cleaning system according to claim 16, characterized in that: The connecting pipe (522) is provided with a second switch valve (9) for opening or blocking the internal flow passage of the connecting pipe (522).

18. The cleaning system according to claim 15, characterized in that: The cleaning machine is a sweeping machine (6), with the sweeping machine (6) moving in the forward direction as the front, and the rear side of the accommodating cavity (511) has an opening for the sweeping machine (6) to be placed therein.

19. The cleaning system according to claim 18, characterized in that: The dirt collecting box (52) and the reversing structure are both located above the accommodating chamber (511), and are arranged at intervals along the left-right direction.

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