Cleaning machine and cleaning system

Abstract

The invention relates to a cleaning machine and a cleaning system.The cleaning machine comprises a shell, a storage chamber is arranged in the shell, and a fixed pipeline which is vertically arranged and communicates with the storage chamber is arranged in the storage chamber; a gap is reserved between the bottom edge of the fixed pipeline and the bottom wall of the storage chamber, the blow-off pipe is located in the fixed pipeline, a baffle plate located below the fixed pipeline is arranged at the bottom of the blow-off pipe, a blow-off opening located above the baffle plate is formed in the peripheral wall of the blow-off pipe, and the blow-off pipe is arranged to move up and down relative to the fixed pipeline. In the first state, the baffle plate of the blow-off pipe blocks the bottom opening of the fixed pipeline, and the blow-off port is located in a space defined by the baffle plate and the fixed pipeline; and in the second state, the blow-off pipe moves downwards until the baffle plate of the blow-off pipe opens the bottom opening of the fixed pipeline, and the blow-off opening is communicated with the storage chamber. The whole opening and closing process is simple and reliable, and the baffle plate and the bottom opening of the fixed pipeline are well sealed.

Description

Technical Field

[0001] The present invention belongs to the technical field of household washing and cleaning, and particularly relates to a cleaning machine and a cleaning system. Background Art

[0002] The cleaning machine is a floor washer, a vacuum cleaner or a sweeper. The cleaning machine sucks a mixture of dust and the like with moisture on the ground into its inner cavity. In order to separate the mixture of dust particles and moisture, a separation structure is usually adopted in the current cleaning machine for separation.

[0003] The current cleaning system, such as the Chinese utility model patent "A Cleaning System" previously applied by the applicant, with the patent number ZL202222268862.5 (the authorized publication number is CN218279490U), discloses a cleaning system, including: a cleaning machine, including a housing, a sewage discharge pipe, and a cover plate rotatably arranged at the sewage discharge port of the sewage discharge pipe; a base station, including a base and a sewage guiding pipe. When the cleaning machine is in the accommodation chamber, the sewage guiding pipe is above the sewage discharge port and arranged corresponding to the sewage discharge port; a driving mechanism, arranged on the base, with the power output end connected to the sewage guiding pipe, at least used to drive the sewage guiding pipe to move downward to be docked and communicated with the sewage discharge port, or move upward to be separated from the sewage discharge port; a transmission mechanism, with the power input end drivingly connected to the driving mechanism and the power output end drivingly connected to the cover plate, used to drive the cover plate to rotate to open the sewage discharge port when the sewage guiding pipe and the sewage discharge port are in a communicated state or close the sewage discharge port when the sewage guiding pipe is separated from the sewage discharge port.

[0004] For the above cleaning system, the opening and closing of the sewage discharge port are usually realized by the rotation of the cover plate. When there are sand or other particles on the bottom surface of the cover plate, the friction between the cover plate and the surface where the sewage discharge port is located is increased. During the rotation of the cover plate, it may hinder the sealing of the entire sewage discharge port.

[0005] Therefore, it is necessary to further improve the existing cleaning system. Summary of the Invention

[0006] The first technical problem to be solved by the present invention is to provide a cleaning machine that can reliably seal the sewage discharge channel in view of the above-mentioned current situation of the prior art.

[0007] The second technical problem to be solved by the present invention is to provide a cleaning system having the above cleaning machine.

[0008] The technical solution adopted by the present invention to solve the above first technical problem is: a cleaning machine, including:

[0009] A housing, which has a storage chamber inside, and a fixed pipe vertically arranged and communicating with the storage chamber is arranged in the storage chamber;

[0010] It is characterized in that there is a gap between the bottom edge of the fixed pipeline and the bottom wall of the storage chamber. The cleaning machine further includes:

[0011] A sewage discharge pipe, which is located inside the fixed pipeline. A baffle plate is provided at the bottom of the sewage discharge pipe and is located below the fixed pipeline. Sewage discharge ports are provided on the peripheral wall of the sewage discharge pipe above the baffle plate. The sewage discharge pipe is arranged to be able to move up and down relative to the fixed pipeline, thus having the following two states: In the first state, the baffle plate of the sewage discharge pipe blocks the bottom opening of the fixed pipeline, and the sewage discharge ports are located in the space enclosed by the baffle plate and the fixed pipeline; In the second state, the sewage discharge pipe moves downward until its baffle plate opens the bottom opening of the fixed pipeline and the sewage discharge ports are communicated with the storage chamber.

[0012] There are various ways to realize the up and down movement of the sewage discharge pipe. It can adopt the form of being actively driven by a driving mechanism, or other ways. Preferably, it further includes a movable pipe for pushing the sewage discharge pipe downward. The movable pipe is vertically arranged and is located above the sewage discharge pipe and is communicated with the sewage discharge pipe. In this way, the movable pipe is a part of the pipeline, and the garbage flowing out through the sewage discharge pipe continues to be discharged outward through the movable pipe.

[0013] In order to enable the sewage discharge pipe to automatically reset upward, it further includes an elastic member that always makes the sewage discharge pipe tend to move upward, and the elastic member acts on the sewage discharge pipe.

[0014] There are various structural forms of the elastic member. It can adopt the form of a spring or the form of a reed piece. However, preferably, the elastic member is a spring located inside the fixed pipeline and sleeved outside the sewage discharge pipe. The top peripheral edge of the sewage discharge pipe has a flange extending outward, and the inner peripheral wall of the fixed pipeline has a shoulder extending inward at a position below the flange, and the spring is located between the flange and the shoulder.

[0015] In order to facilitate the movable pipe to push the sewage discharge pipe downward, the flange gradually slopes upward from the inside to the outside. When the movable pipe is in the state of pushing the sewage discharge pipe to move downward, the bottom edge of the movable pipe abuts against the flange.

[0016] Preferably, the sewage discharge pipe includes a vertically arranged vertical pipe body and an extension wall provided on the bottom wall of the vertical pipe body and extending downward. There are two extension walls arranged at intervals, and the bottom edges of the two extension walls are connected by a flexible connection wall. A sewage discharge port is formed by enclosing between the connection wall, the bottom wall of the vertical pipe body and the two extension walls, and the baffle is installed on the connection wall. In this way, the flexible connection wall can be compressed. Since there is a large water passing area before compression, when the sewage discharge pipe is continuously pressed down until it reaches the bottom wall of the storage chamber, the water passing area will be reduced a lot. When the purified water enters the storage chamber through the sewage discharge pipe, under the combined action of water pressure and the downward pressure of the vertical pipe body (similar to pressing the water pipe opening by hand for spraying), the water sprays towards the side wall of the storage chamber, and at the same time, it can clean the separation structure, achieving a good self-cleaning effect of flushing the side wall of the storage chamber and the separation structure.

[0017] Preferably, the connection wall includes two inclined walls and a transverse wall located between the two inclined walls and connected to both of them. The transverse wall extends along the sequential arrangement direction of the two extension walls, and each of the two inclined walls gradually inclines away from each other upward from bottom to top, and the upper end of each inclined wall is connected to the lower end of the corresponding side extension wall.

[0018] In order to detect the liquid level height in the storage chamber, a detection member for sensing the liquid level height in the storage chamber is provided on the bottom wall of the vertical pipe body in the area other than the extension wall.

[0019] Preferably, the detection member is an electrode contact, and there are two and arranged at a relative interval, and the extension wall is located between the two detection members.

[0020] Specifically, the two extension walls are arranged opposite to each other. In addition, they can also be arranged in a staggered manner.

[0021] In order to achieve the installation of the baffle, a convex portion extending upward is provided at a position near the center of the upper wall surface of the baffle, and a jack for inserting the convex portion upward is provided at a position near the center of the connection wall.

[0022] In order to separate the mixed fluid entering the storage chamber, the storage chamber has an air inlet and an air outlet, and at least a separation member for separating dust and air is provided in the storage chamber, and the fixed pipe is located on the periphery of the separation member.

[0023] In order to selectively move the separation member together with the sewage discharge pipe according to actual needs, the separation member can be selectively connected to the sewage discharge pipe.

[0024] Preferably, an extension strip extending towards the separating member is provided on the sewage discharge pipe, and a slot for inserting the extension strip is provided on the separating member. The sewage discharge pipe can rotate relative to the fixed pipe about its own axis under the drive of a drive mechanism, and the slot is located on the rotation path of the extension strip. In addition, a form in which a slot is provided on the sewage discharge pipe and an extension strip is provided on the separating member can also be adopted.

[0025] There are various structural forms of the drive mechanism. However, preferably, the drive mechanism includes a motor, a driving gear, and a driven gear. The motor is located on the circumferential side of the fixed pipe and has an output shaft extending vertically. The driving gear is mounted on the output shaft of the motor and is partially located inside the fixed pipe. The driven gear is provided on the outer peripheral wall of the sewage discharge pipe and meshes with the driving gear.

[0026] Preferably, the driving gear is a sector gear, and an avoidance opening for the sector gear to pass through is provided on the side wall of the fixed pipe.

[0027] In order to reliably control whether the motor works or not, it further includes a blower connected to the air outlet and a rotational speed sensor for detecting the rotational speed of the impeller of the blower. The rotational speed sensor is electrically connected to a controller, and the controller is electrically connected to the motor and is configured to control the motor to work when receiving that the rotational speed of the impeller detected by the rotational speed sensor reaches a preset value, and then drive the extension strip to rotate and insert into the slot.

[0028] There are various structural forms of the separating member. However, preferably, the air outlet is located at the top of the storage chamber. The separating member includes a separating ring in the shape of a vertical annular wall surrounding the periphery of the air outlet. Filter holes are distributed on the separating ring, and the slot is located on the outer side wall of the separating member.

[0029] There are various ways to implement the slot. However, preferably, an extension plate extending towards the fixed pipe is provided on the outer side wall of the separating member. There are two extension plates, which are arranged at intervals up and down. The slot is formed between the two extension plates. In addition, an extension plate can also be provided, and the slot is directly opened on the extension plate.

[0030] The technical solution adopted by the present invention to solve the above second technical problem is: a cleaning system, including a base and a cleaning machine. The cleaning machine is a floor sweeping robot. The base has a receiving chamber with an open front side for the cleaning machine to enter. It is characterized in that: the cleaning machine is the above-mentioned cleaning machine, and the movable pipe is a sewage guiding pipe provided on the base and capable of moving up and down. In a state where the cleaning machine is located in the receiving chamber, the sewage guiding pipe and the sewage discharge pipe are arranged correspondingly.

[0031] Compared with the prior art, the advantages of the present invention are as follows: in this cleaning machine, the sewage outlet is located on the circumferential side wall of the sewage pipe, and the sewage pipe is fixedly connected to the separation structure relatively. Moreover, a baffle is provided at the bottom of the sewage pipe and is located below the fixed pipe. And the sewage pipe can move up and down relative to the fixed pipe. Then, when the baffle of the sewage pipe moves upward, it blocks the bottom opening of the fixed pipe. At this time, the sewage outlet is located in the space enclosed by the baffle and the fixed pipe, that is, the sewage pipe is blocked by the upward movement of the sewage pipe, and the baffle has a good sealing effect on the bottom opening of the fixed pipe. When it is necessary to store outdoor discharged garbage or perform self-cleaning, by moving the sewage pipe downward, the baffle of the sewage pipe opens the opening of the fixed pipe. At this time, the sewage outlet is communicated with the storage chamber, and the whole opening and closing process is simple and reliable, and the problem of affecting the rotation of the cover plate caused by the presence of particles on the baffle in the background technology is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic structural diagram of the cleaning system of this embodiment;

[0033] Figure 2 is Figure 1 a partial structural diagram in

[0034] Figure 3 is Figure 2 a longitudinal sectional view of

[0035] Figure 4 is Figure 2 a transverse sectional view of

[0036] Figure 5 is Figure 2 another longitudinal sectional view of

[0037] Figure 6 is Figure 2 a sectional view of the sewage pipe in the downward movement state in

[0038] Figure 7 is Figure 2 another sectional view of the sewage pipe in the downward movement state in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] The present invention will be further described in detail below with reference to the embodiments of the drawings.

[0040] As Figure 1 shown, the cleaning system of this embodiment includes a base 7 and a cleaning machine. Among them, the cleaning machine is a floor sweeping robot 5, and the forward direction of the cleaning machine is defined as the front. The aforementioned base 7 has a receiving chamber 70 with an open rear side for the floor sweeping robot 5 to enter. A sewage guiding pipe 71 that can move up and down is provided on the base 7, and the sewage guiding pipe 71 is arranged vertically.

[0041] AsFigures 1 to 6 As shown in the figure, the floor sweeping robot of this embodiment includes a housing 1, a separating member 2, a sewage discharge pipe 3, a movable pipe, a blower, a rotational speed sensor, an elastic member, and a driving mechanism 8. Among them, the interior of the housing 1 has a storage chamber 10, and the storage chamber 10 has an air inlet 101 and an air outlet 102. Specifically, the air outlet 102 is located on the top wall plate of the storage chamber 10. A fixed pipe 11 vertically arranged and communicating with the storage chamber 10 is provided in the aforementioned storage chamber 10, and there is a gap between the bottom edge of the fixed pipe 11 and the bottom wall of the storage chamber 10. The bottom of the fixed pipe 11 is open.

[0042] As Figures 3 to 6 shown in the figure, the separating member is arranged in the storage chamber 10 and is at least used to separate dust and liquid. The aforementioned fixed pipe 11 is located on the periphery of the separating member. The separating member 2 includes a separating ring 21 and an outer ring wall 2a that are both in the shape of a vertical annular wall and surround the outside of the air outlet 102. The top edge of the separating ring 21 is connected to the top edge of the outer ring wall 2a through a connecting plate 2b. The separating ring 21 forms an air passage 210 communicating with the air outlet 102, and first filtering holes 211 are distributed on the separating ring 21, and second filtering holes 221 are distributed on the outer ring wall 2a.

[0043] As Figures 3 to 6 shown in the figure, the sewage discharge pipe 3 is located in the fixed pipe 11. A baffle plate 4 is provided at the bottom of the sewage discharge pipe 3 and is located below the fixed pipe 11, and a sewage discharge port 30 is provided on the peripheral wall of the sewage discharge pipe 3 and is above the baffle plate 4. Specifically, as Figure 7 shown in the figure, the sewage discharge pipe 3 includes a vertically arranged vertical pipe body 31 and an extension wall 32 provided on the bottom wall of the vertical pipe body 31 and extending downward. There are two extension walls 32 and they are arranged at intervals. In this embodiment, the two extension walls 32 are arranged oppositely. The bottom edges of the two extension walls 32 are connected through a flexible connecting wall 33. The connecting wall 33, the bottom wall of the vertical pipe body 31, and the two extension walls 32 enclose the aforementioned sewage discharge port 30. The connecting wall 33 includes two inclined walls 331 and a transverse wall 332 located between the two inclined walls 331 and connected to both of them. The transverse wall 332 extends along the sequential arrangement direction of the two extension walls 32. The two inclined walls 331 are gradually inclined away from each other from bottom to top, and the upper end of each inclined wall 331 is connected to the lower end of the corresponding extension wall 32. The aforementioned flexible connecting wall 33 can be compressed. Since there is a large water passing area before compression, when the sewage discharge pipe is continuously pressed down until it reaches the bottom wall of the storage chamber, the water passing area will be reduced a lot, and the transverse wall moves upward. When clean water enters the storage chamber through the sewage discharge pipe, under the combined action of water pressure and the downward pressure of the vertical pipe body (similar to pressing the water pipe opening by hand for spraying), the water sprays towards the side wall of the storage chamber, and at the same time can clean the separating member 2, achieving a good self-cleaning effect of flushing the side wall of the storage chamber and the separating member 2.

[0044] The baffle 4 is installed on the transverse wall 332 of the connecting wall 33. In this embodiment, a convex portion 41 extending upward is provided at a position adjacent to the center on the upper wall surface of the baffle 4, and a jack 330 for upward insertion of the convex portion 41 is provided at a position adjacent to the center of the connecting wall 33. In order to detect the liquid level height in the storage chamber, a detecting member for sensing the liquid level height in the storage chamber 10 is provided on the bottom wall of the vertical pipe body 31 in the area other than the extending wall 32. The detecting member is an electrode contact, and there are two of them arranged at intervals relative to each other, and the extending wall 32 is located between the two detecting members. Thus, according to the contact between the electrode contact and the liquid surface in the storage chamber, the remaining situation of the internal liquid in the storage chamber is judged. If it is always in the triggered state, the sewage guiding pipe is continuously controlled to press down the sewage discharging pipe until the contact is not triggered, which indicates that the recovery in the storage chamber has been completed.

[0045] The above-mentioned sewage discharging pipe 3 is arranged to be movable up and down relative to the fixed pipe 11. The above-mentioned sewage discharging pipe 3 has the following two states during the up and down movement: as Figure 3 and Figure 4 shown, in the first state, the baffle 4 of the sewage discharging pipe 3 blocks the bottom opening 110 of the fixed pipe 11, and the sewage outlet 30 is located in the space enclosed by the baffle 4 and the fixed pipe 11. As Figure 5 and Figure 6 shown, in the second state, the sewage discharging pipe 3 moves downward until its baffle 4 opens the bottom opening 110 of the fixed pipe 11, and the sewage outlet 30 is communicated with the storage chamber 10.

[0046] In this example, the above-mentioned sewage discharging pipe 3 can move downward under the push of the movable pipe. The aforementioned movable pipe is the above-mentioned sewage guiding pipe 71. When the cleaning machine is in the state in the accommodating chamber 70, the sewage guiding pipe 71 is located above the sewage discharging pipe 3, is correspondingly arranged with the sewage discharging pipe 3, and can be communicated with the sewage discharging pipe 3. When docking and recovery are required, the sewage guiding pipe 71 descends, presses down the sewage discharging pipe 3 until the sewage outlet 30 on it is in the open state. At this time, the sewage and garbage in the storage chamber 10 are introduced into the sewage collection box of the base or the sewer through the sewage outlet, the sewage discharging pipe and the sewage guiding pipe 71. The structure for realizing the up and down movement of the above-mentioned sewage guiding pipe 71 adopts the structure in the prior art, and will not be described in detail in this embodiment.

[0047] The elastic member acts on the sewage discharge pipe 3 and makes the sewage discharge pipe 3 always tend to move upward. Under the action of the aforementioned elastic member, the sewage discharge pipe moves upward, and the baffle plate 4 on the sewage discharge pipe 3 blocks the bottom opening 110 of the fixed pipe 11. The aforementioned elastic member is a spring 6 located inside the fixed pipe 11 and sleeved outside the sewage discharge pipe 3. The top peripheral edge of the sewage discharge pipe 3 has a flange 311 extending outward. The inner peripheral wall of the fixed pipe 11 has an inwardly extending shoulder 112 at a position below the flange 311, and the spring 6 is located between the flange 311 and the shoulder 112. In this embodiment, the flange 311 gradually slopes upward from the inside to the outside. When the movable pipe pushes the sewage discharge pipe 3 to move downward, the bottom edge of the movable pipe abuts against the flange 311.

[0048] The above-mentioned separating member 2 can be selectively connected to the sewage discharge pipe 3. Specifically, an extension strip 35 extending towards the separating member is provided on the sewage discharge pipe 3, and a slot 22 for inserting the extension strip 35 is provided on the outer side wall of the separating member 2. In this embodiment, an extension plate 23 extending towards the fixed pipe 11 is provided on the outer side wall of the separating member 2. There are two extension plates 23, and they are arranged at intervals in the vertical direction. The aforementioned slot 22 is formed between the two extension plates 23. The sewage discharge pipe 3 can rotate relative to the fixed pipe 11 around its own axis under the drive of the drive mechanism 8, and the slot 22 is located on the rotation path of the extension strip 35. In this embodiment, the drive mechanism 8 includes a motor 81, a driving gear, and a driven gear 83. The motor 81 is located on the periphery of the fixed pipe 11 and has a vertically extending output shaft. The driving gear is mounted on the output shaft of the motor 81 and is partially located inside the fixed pipe 11. The driven gear 83 is provided on the outer peripheral wall of the sewage discharge pipe 3 and meshes with the driven gear 83. In this embodiment, the driving gear is a sector gear 82, and an avoidance opening 113 for passing the sector gear 82 is provided on the side wall of the fixed pipe 11.

[0049] The blower is connected to the air outlet 102. The rotational speed sensor is used to detect the rotational speed of the impeller of the blower. The rotational speed sensor is electrically connected to the controller, and the controller is electrically connected to the motor 81 and is configured to control the motor 81 to operate when receiving that the rotational speed of the impeller detected by the rotational speed sensor reaches a preset value, and then drive the extension bar 35 to rotate and insert into the slot 22. The rotational speed sensor is arranged at the blower. When lint or garbage blocks the separator, which affects the overall air volume and cleaning effect, the rotational speed feedback by the rotational speed sensor will increase. When the rotational speed feedback by the rotational speed sensor increases to V1, at this time, the motor drives the sector gear 82 to rotate and mesh with the driven gear 83. The driven gear 83 rotates a certain angle, the extension bar 35 inserts into the slot 22, and then the sewage discharge pipe is lowered, and the sewage discharge pipe 3 drives the separator 2 to move downward together. When the rotational speed feedback by the rotational speed sensor does not reach V1, at this time, the motor drives the sector gear not to mesh with the driven gear 83. At this time, the extension bar 25 is disengaged from the plug-in fit with the slot 22, and the up and down movement of the sewage discharge pipe will not drive the separator 2 to move up and down.

[0050] After a round of cleaning, some lint will accumulate on the separator 2. The driving mechanism drives the extension bar to rotate and insert into the slot 22. When the sewage discharge pipe 3 moves downward, under the pressing action of the sewage guiding pipe on the sewage discharge pipe 3, the sewage discharge pipe 3 descends together with the separator 2. After descending to a certain height, water is added to the storage chamber (the clean water in the water purification tank of the base can be input into the storage chamber through the sewage guiding pipe and the sewage discharge pipe). After adding to a certain capacity, the blower drives the clear water in the storage chamber to wash the lint accumulated on the separator 2, and then negative pressure recovery is carried out through the sewage discharge pipe. After the whole process is completed, the sewage discharge pipe rises to the first state.

Claims

1. A cleaning machine, comprising: A housing (1) having an internal storage chamber (10), wherein a fixed pipe (11) vertically arranged and communicating with the storage chamber (10) is provided in the storage chamber (10); It is characterized in that A gap is left between the bottom edge of the fixed pipe (11) and the bottom wall of the storage chamber (10), and the cleaning machine further comprises: A sewage discharge pipe (3) located in the fixed pipe (11), a baffle (4) is provided at the bottom of the sewage discharge pipe (3) and located below the fixed pipe (11), a sewage discharge port (30) is provided on the peripheral wall of the sewage discharge pipe (3) above the baffle (4), and the sewage discharge pipe (3) is arranged to be movable up and down relative to the fixed pipe (11), thus having the following two states: in the first state, the baffle (4) of the sewage discharge pipe (3) blocks the bottom opening (110) of the fixed pipe (11), and the sewage discharge port (30) is located in the space enclosed by the baffle (4) and the fixed pipe (11); in the second state, the sewage discharge pipe (3) moves downward until its baffle (4) opens the bottom opening (110) of the fixed pipe (11) and the sewage discharge port (30) communicates with the storage chamber (10).

2. The cleaning machine according to claim 1, characterized in that: It further comprises a movable pipe for pushing the sewage discharge pipe (3) to move downward, the movable pipe is vertically arranged and located above the sewage discharge pipe (3) and communicates with the sewage discharge pipe (3).

3. The cleaning machine according to claim 2, wherein: It further comprises an elastic member that always makes the sewage discharge pipe (3) tend to move upward, and the elastic member acts on the sewage discharge pipe (3).

4. The cleaning machine according to claim 3, characterized in that: The elastic member is a spring (6) located in the fixed pipe (11) and sleeved outside the sewage discharge pipe (3), an outwardly extending flange (311) is provided on the top peripheral edge of the sewage discharge pipe (3), and an inwardly extending shoulder (112) is provided on the inner peripheral wall of the fixed pipe (11) at a position below the flange (311), and the spring (6) is located between the flange (311) and the shoulder (112).

5. The cleaning machine according to claim 4, characterized in that: The flange (311) gradually slopes upward from inside to outside, and when the movable pipe is in a state of pushing the sewage discharge pipe (3) to move downward, the bottom edge of the movable pipe abuts against the flange (311).

6. The cleaning machine according to claim 1, wherein: The sewage discharge pipe (3) comprises a vertically arranged vertical pipe body (31) and an extension wall (32) provided on the bottom wall of the vertical pipe body (31) and extending downward, there are two extension walls (32) arranged at intervals, and the bottom edges of the two extension walls (32) are connected by a flexible connecting wall (33), and the connecting wall (33), the bottom wall of the vertical pipe body (31) and the two extension walls (32) enclose the sewage discharge port (30), and the baffle (4) is installed on the connecting wall (33).

7. The cleaning machine according to claim 6, characterized in that: The connecting wall (33) includes two inclined walls (331) and a transverse wall (332) located between and connected to the two inclined walls (331). The transverse wall (332) extends along the sequential arrangement direction of the two extension walls (32). Each of the two inclined walls (331) inclines gradually away from each other from bottom to top, and the upper end of each inclined wall (331) is connected to the lower end of the corresponding extension wall (32).

8. The cleaning machine according to claim 6, characterized in that: On the bottom wall of the vertical pipe body (31) in the area other than the extension wall (32), a detection member is provided for sensing the liquid level height in the storage chamber (10).

9. The cleaning machine according to claim 8, wherein: The detection member is an electrode contact, and there are two, arranged at a relative interval, and the extension wall (32) is located between the two detection members.

10. The cleaning machine according to claim 6, characterized in that: The two extension walls (32) are arranged opposite to each other.

11. The cleaning machine according to claim 6, characterized in that: At a position adjacent to the center on the upper wall surface of the shielding plate (4), there is a convex portion (41) extending upward. At a position adjacent to the center of the connecting wall (33), there is a jack (331) for the convex portion (41) to be inserted upward therein.

12. The cleaning machine according to any one of claims 1 to 11, characterized in that: The storage chamber (10) has an air inlet (101) and an air outlet (102). At least a separating member (2) for separating dust and air is provided in the storage chamber (10), and the fixed pipe (11) is located on the peripheral side of the separating member (2).

13. The cleaning machine according to claim 12, characterized in that: The separating member (2) can be selectively connected to the sewage pipe (3).

14. The cleaning machine according to claim 13, characterized in that: An extension strip (35) extending towards the separating member (2) is provided on the sewage pipe (3). A slot (22) for the extension strip (35) to be inserted therein is provided on the separating member (2). The sewage pipe (3) can rotate relative to the fixed pipe (11) about its own axis under the drive of a drive mechanism (8), and the slot (22) is located on the rotation path of the extension strip (35).

15. The cleaning machine according to claim 14, wherein: The drive mechanism (8) includes a motor (81), a driving gear, and a driven gear (83). The motor (81) is located on the peripheral side of the fixed pipe (11) and has an output shaft extending vertically. The driving gear is mounted on the output shaft of the motor (81) and is partially located inside the fixed pipe (11). The driven gear (83) is provided on the outer peripheral wall of the sewage pipe (3) and meshes with the driven gear (83).

16. The cleaning machine according to claim 15, characterized in that: The driving gear is a sector gear (82), and an avoidance opening (113) for the sector gear (82) to pass through is provided on the side wall of the fixed pipe (11).

17. The cleaning machine according to claim 15, wherein: It further includes a fan communicated with the air outlet (102) and a rotational speed sensor for detecting the rotational speed of the impeller of the fan. The rotational speed sensor is electrically connected to a controller. The controller is electrically connected to the motor (81) and is configured to control the motor (81) to operate when receiving that the rotational speed of the impeller detected by the rotational speed sensor reaches a preset value, and then drive the extension strip (35) to rotate and insert into the slot (22).

18. The cleaning machine according to claim 12, characterized in that: The air outlet (102) is located at the top of the storage chamber (10). The separating member (2) includes a separating ring (21) in the shape of a vertical annular wall and surrounding the periphery of the air outlet (102). First filter holes (211) are distributed on the separating ring (21). The slot (22) is located on the outer side wall of the separating member (2).

19. The cleaning machine according to claim 18, wherein: An extension plate (23) extending towards the fixed pipe (11) is provided on the outer side wall of the separating member (2). There are two extension plates (23), which are arranged at intervals in the up and down direction. The slot (22) is formed between the two extension plates (23).

20. A cleaning system, comprising a base (7) and a cleaning machine, the cleaning machine being a floor sweeping robot, the base (7) having a receiving chamber (70) with an open front side for the cleaning machine to enter, characterized in that: The cleaning machine is the cleaning machine according to any one of claims 2 to 5. The movable pipe is a sewage guiding pipe (71) provided on the base (7) and capable of moving up and down. In a state where the cleaning machine is located in the accommodating chamber (70), the sewage guiding pipe (71) is arranged corresponding to the sewage discharge pipe (3).

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