Wastewater tank, cleaning device, and cleaning system

Abstract

A wastewater tank (130), a cleaning device (10), and a cleaning system. The wastewater tank (130) comprises: a tank body (131) and a liquid level monitoring assembly (138). The top of the tank body (131) is provided with an open end of an accommodating space (1311), and the bottom of the tank body (131) is provided with a wastewater inlet (1312); and the liquid level monitoring assembly (138) comprises a first monitoring point (13851) and a second monitoring point (13852) located in the accommodating space (1311), and in a height direction of the tank body (131), the second monitoring point (13852) is located above the first monitoring point (13851). When the wastewater tank (130) is in a normal state, the wastewater level can be monitored by means of the first monitoring point (13851) at a lower position; when the wastewater tank (130) is in a horizontal state, the wastewater level can be monitored by means of the second monitoring point (13852) located at a higher position. Thus, accurate monitoring of the wastewater level of the wastewater tank (130) in the normal state and the horizontal state is realized, preventing excessive moisture from entering a negative pressure apparatus due to a failure to stop operation in a timely manner after the wastewater tank becomes full, improving the safety of the negative pressure apparatus, and prolonging the service life of the negative pressure apparatus.

Description

Sewage tank, cleaning device and cleaning system

[0001] Cross-reference to Related Applications

[0002] The present disclosure claims priority to Chinese Patent Application No. 202422180409.8, filed September 5, 2024, entitled “Sewage tank, cleaning device and cleaning system,” the entire contents of which are incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of smart home, and in particular, to a sewage tank, a cleaning device and a cleaning system. BACKGROUND

[0004] With the continuous development of society, people's living standards are also getting higher and higher. Cleaning devices (such as scrubbers, floor cleaners, etc.) are more time-saving and labor-saving than traditional manual cleaning and have been used by more and more families. Cleaning devices usually include a machine body and a cleaning base, and the cleaning base includes a cleaning head for mopping. The cleaning head rotates at high speed to mop the floor.

[0005] Generally, a sewage tank for containing sewage is provided on the machine body of a scrubber, which is used to recover sewage when cleaning the floor. However, when the sewage on the floor is recovered into the sewage tank by a negative pressure device on the cleaning device, it is necessary to accurately determine whether the sewage in the sewage tank is full.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0007] The purpose of the present disclosure is to provide a sewage tank, a cleaning device and a cleaning system.

[0008] According to one aspect of the present disclosure, a sewage tank is provided, which comprises:

[0009] a tank body, the tank body being formed with a containing space, a top of the tank body being provided with an open end of the containing space in a height direction, and a bottom of the tank body being provided with a sewage inlet;

[0010] a liquid level monitoring assembly, the liquid level monitoring assembly comprising a first monitoring point and a second monitoring point in the containing space, the second monitoring point being located above the first monitoring point in the height direction of the tank body.

[0011] In an exemplary embodiment of the present disclosure, the liquid level monitoring assembly comprises:

[0012] A first monitoring rod and a second monitoring rod are located in the containing space and extend along the height direction; the first monitoring rod and the second monitoring rod are formed with the first monitoring point and the second monitoring point; one of the first monitoring rod and the second monitoring rod is positive, and the other is negative.

[0013] In an exemplary embodiment of the present disclosure, the height of the first monitoring point on the first monitoring rod and the second monitoring rod is consistent with the height of the second monitoring point on the first monitoring rod and the second monitoring rod in the height direction of the box.

[0014] In an exemplary embodiment of the present disclosure, the first monitoring point on the first monitoring rod is located at the end of the first monitoring rod, and / or the first monitoring point on the second monitoring rod is located at the end of the second monitoring rod.

[0015] In an exemplary embodiment of the present disclosure, the first monitoring rod and the second monitoring rod each include a conductive column and an insulating layer covering the conductive column, and the conductive column is exposed at the first monitoring point and the second monitoring point through the insulating layer.

[0016] In an exemplary embodiment of the present disclosure, the sewage tank further comprises:

[0017] A separation assembly, at least part of which is located in the containing space, the separation assembly is formed with an air duct in the containing space, the inlet of the air duct is in communication with the sewage inlet, the outlet of the air duct is used to connect a negative pressure device, and the middle part of the air duct is in communication with the containing space;

[0018] The liquid level monitoring assembly is connected to the separation assembly.

[0019] In an exemplary embodiment of the present disclosure, the separation assembly comprises:

[0020] A separation support, the separation support comprises a mounting portion and an air duct portion, the separation support is assembled on the open end of the sewage tank through the mounting portion, and at least part of the air duct is formed on the air duct portion;

[0021] The liquid level monitoring assembly is connected to the separation support.

[0022] In an exemplary embodiment of the present disclosure, the separation support is provided with a plurality of mounting holes, and the first monitoring rod and the second monitoring rod are respectively inserted into the corresponding mounting holes.

[0023] In an exemplary embodiment of the present disclosure, the liquid level monitoring assembly further comprises:

[0024] A first contact electrode and a second contact electrode are arranged on the mounting portion; the first contact electrode is connected with the first monitoring rod, and the second contact electrode is connected with the second monitoring rod.

[0025] In an exemplary embodiment of the present disclosure, the sewage tank further comprises:

[0026] An upper cover is fixedly connected with the mounting portion, and the first contact electrode and the second contact electrode are exposed through the upper cover.

[0027] In an exemplary embodiment of the present disclosure, the air duct comprises a first air duct, a second air duct and a third air duct; an inlet of the first air duct is communicated with the sewage inlet, an outlet of the first air duct is located on one side close to the top and communicated with an inlet of the second air duct, an outlet of the second air duct is located on one side close to the bottom and communicated with the containing space; an inlet of the third air duct is located on one side close to the bottom and communicated with the containing space, and an outlet of the third air duct is located on one side close to the top and used for connecting a negative pressure device.

[0028] In an exemplary embodiment of the present disclosure, the second air duct is formed on the air duct portion, and the third air duct is formed by cooperation of the air duct portion and the side wall of the sewage tank.

[0029] In an exemplary embodiment of the present disclosure, the air duct portion comprises an air guide pipe, and the air guide pipe forms the second air duct.

[0030] In an exemplary embodiment of the present disclosure, the air guide pipe comprises a main air pipe and an elbow, an outlet of the elbow is sealingly connected with the main air pipe, and an inlet of the elbow is communicated with the outlet of the first air duct.

[0031] In an exemplary embodiment of the present disclosure, the separation assembly comprises:

[0032] A sewage inlet pipe is formed with the first air duct, an inlet of the sewage inlet pipe is connected with the sewage inlet on the tank body, and an inlet of the air guide pipe is sealingly inserted into an outlet of the sewage inlet pipe.

[0033] In an exemplary embodiment of the present disclosure, in the width direction of the tank body, the sewage inlet pipe is arranged close to the side wall on one side of the sewage tank, and the outlet of the sewage inlet pipe is obliquely arranged towards the side wall on the other side opposite to the one side of the sewage tank.

[0034] In an exemplary embodiment of the present disclosure, in the width direction of the box, the sewage inlet pipe is arranged close to the side wall of the sewage tank side; at least part of the pipe body of the sewage inlet pipe extending from the sewage inlet to the outlet side of the sewage inlet pipe has the containing space only with the side wall of the other side of the sewage tank.

[0035] In an exemplary embodiment of the present disclosure, at least part of the pipe body of the sewage inlet pipe extending from the sewage inlet to the outlet side of the sewage inlet pipe is the side wall of the box.

[0036] In an exemplary embodiment of the present disclosure, the separation assembly further comprises:

[0037] A filter plate is arranged in the containing space and divides the containing space into a first containing space and a second containing space in the height direction, the filter plate is provided with a relief gap, and the sewage inlet pipe is located in the gap.

[0038] In an exemplary embodiment of the present disclosure, the filter plate comprises a first filter part corresponding to the second air duct and a second filter part corresponding to the third air duct, and the first filter part is arranged close to the bottom of the box relative to the second filter part in the height direction.

[0039] In an exemplary embodiment of the present disclosure, the first filter part is in the form of a flat plate.

[0040] In an exemplary embodiment of the present disclosure, the filter plate is connected with the separation support.

[0041] In an exemplary embodiment of the present disclosure, the filter plate is detachably connected with the separation support.

[0042] In an exemplary embodiment of the present disclosure, the separation assembly further comprises:

[0043] A first gas-water separation piece is arranged in the third air duct.

[0044] In an exemplary embodiment of the present disclosure, the first gas-water separation piece is detachably connected with the separation support.

[0045] In an exemplary embodiment of the present disclosure, the separation assembly further comprises:

[0046] A second gas-water separation piece is arranged at the outlet of the third air duct.

[0047] In an exemplary embodiment of the present disclosure, the outlet of the second air duct is consistent with the inlet of the third air duct in the height direction.

[0048] In one example embodiment of the present disclosure, the liquid level monitoring assembly comprises:

[0049] a first liquid level sensor, the first liquid level sensor being formed with the first monitoring point;

[0050] a second liquid level sensor, the second liquid level sensor being formed with the second monitoring point.

[0051] According to another aspect of the present disclosure, there is provided a cleaning apparatus comprising:

[0052] a body and a cleaning base connected to one end of the body;

[0053] a sewage tank as described in any of the above embodiments, the sewage tank being detachably connected to the body.

[0054] According to yet another aspect of the present disclosure, there is provided a cleaning system comprising:

[0055] a cleaning apparatus as described above;

[0056] a pile configured to park the cleaning apparatus.

[0057] It should be understood that the general description above and the detailed description below are only exemplary and explanatory, and are not intended to limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0058] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and serve to explain the principles of the present disclosure. It is readily apparent to one of ordinary skill in the art that the accompanying drawings are merely some embodiments of the present disclosure and other drawings can be obtained by those of ordinary skill in the art without any creative effort, based on the accompanying drawings.

[0059] FIG. 1 is a schematic view of a cleaning apparatus according to an embodiment of the present disclosure.

[0060] FIG. 2 is a schematic view of a sewage tank according to an embodiment of the present disclosure.

[0061] FIG. 3 is a schematic view of another perspective of the sewage tank according to an embodiment of the present disclosure.

[0062] FIG. 4 is a schematic view of a bottom of the sewage tank according to an embodiment of the present disclosure.

[0063] FIG. 5 is a schematic view of a liquid level monitoring assembly according to an embodiment of the present disclosure.

[0064] Fig. 6 is a schematic diagram of liquid level monitoring of the sewage tank in a normal state according to an embodiment of the present disclosure.

[0065] Fig. 7 is a schematic diagram of liquid level monitoring of the sewage tank in a lying state according to an embodiment of the present disclosure.

[0066] Fig. 8 is a sectional view of the monitoring rod and the contact electrode according to an embodiment of the present disclosure.

[0067] Fig. 9 is a schematic diagram of the monitoring rod and the contact electrode according to an embodiment of the present disclosure.

[0068] Fig. 10 is a schematic diagram of a sectional view of the sewage tank according to an embodiment of the present disclosure.

[0069] Fig. 11 is a schematic diagram of the sewage tank without the tank body according to an embodiment of the present disclosure.

[0070] Fig. 12 is a schematic diagram of the sewage tank without the tank body from another perspective according to an embodiment of the present disclosure.

[0071] Fig. 13 is an exploded view of the sewage tank without the tank body according to an embodiment of the present disclosure.

[0072] Fig. 14 is a schematic diagram of the tank body according to an embodiment of the present disclosure.

[0073] Fig. 15 is a schematic diagram of a sectional view of the tank body according to an embodiment of the present disclosure.

[0074] Fig. 16 is a schematic diagram of a sectional view of the sewage tank from another perspective according to an embodiment of the present disclosure.

[0075] Fig. 17 is a schematic diagram of the filter according to an embodiment of the present disclosure.

[0076] Fig. 18 is a schematic diagram of the filter from another perspective according to an embodiment of the present disclosure.

[0077] Fig. 19 is a schematic diagram of the first gas-water separation member according to an embodiment of the present disclosure.

[0078] Fig. 20 is a schematic diagram of the second gas-water separation member according to an embodiment of the present disclosure.

[0079] Fig. 21 is a schematic diagram of the second gas-water separation member from another perspective according to an embodiment of the present disclosure.

[0080] Fig. 22 is a schematic diagram of the cleaning system according to an embodiment of the present disclosure.

[0081] Fig. 23 is a schematic diagram of the cleaning device parked on the pile according to an embodiment of the present disclosure.

[0082] Explanation of reference signs: 10, cleaning device; 100, machine body; 110, machine body main body; 120, clean water tank; 130, dirty water tank; 140, handle assembly; 131, tank body; 1311, containing space; 13111, first containing space; 13112, second containing space; 1312, dirty water inlet; 1313, open end; 1314, bottom plate; 1315, side wall; 1316, baffle; 132, separation assembly; 1321, separation support; 13211, mounting portion; 13212, air duct portion; 132120, air duct; 132121, air duct main body; 132122, elbow; 132123, first sealing ring; 132124, second sealing ring; 132125, extension portion; 1322, dirty water inlet pipe; 1323, filter member; 13231, first filter portion; 13232, second filter portion; 13233, side baffle; 13234, avoidance notch; 13235, connecting rod; 13241, first air duct; 13242, second air duct; 13243, third air duct; 133, upper cover; 134, first air-water separation member; 135, second air-water separation member; 136, grabbing assembly; 137, switch assembly; 138, liquid level monitoring assembly; 1381, first monitoring rod; 1382, second monitoring rod; 1383, first contact electrode; 1384, second contact electrode; 13851, first monitoring point; 1352, second monitoring point; 13861, conductive column; 13862, insulating layer; 200, cleaning base; 20, base station. DETAILED DESCRIPTION

[0083] Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings; however, the example embodiments can be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the figures, and thus a detailed description of the same will not be repeated.

[0084] Although relative terms such as "upper", "lower", etc. are used herein to describe one component's relationship to another component of a figure, such terms are used herein for convenience only and are not intended to limit the scope of the disclosure to only a particular orientation. It is to be understood that if a figure is turned over such that its "upper" part becomes its "lower" part, then what is described as above will then be described as below. When a structure is "on" another structure, it can mean that the structure is formed integrally with the other structure, or that the structure is "directly" on the other structure, or that the structure is "indirectly" on the other structure via another structure.

[0085] The terms "one", "a", "an", "the", and "at least one" are used to indicate the existence of one or more elements / components / etc.; the terms "including" and "having" are used to indicate the inclusion of one or more elements / components / etc. without excluding the presence of additional elements / components / etc.; the terms "first", "second", and "third" etc. are merely used to distinguish one element / component / etc. from another, and do not limit the number of elements / components / etc.

[0086] Embodiments of the present disclosure provide a cleaning device, as shown in FIG. 1, which is a scrubber 10. It should be noted that the present disclosure describes the cleaning device by way of the scrubber, which is only a preferred embodiment of the present disclosure, and is not a limitation on the scope of protection of the cleaning device of the present disclosure. For example, the cleaning device of the present disclosure can be a handheld scrubber with a handle and manually operated by a user, or can be a self-moving floor cleaning robot with driving wheels, which can control the driving wheels to move according to the program stored therein and control the cleaning roller to clean the floor. For another example, the cleaning device of the present disclosure can also be a mop, a sweeper, an electric mop, or other cleaning devices.

[0087] Hereinafter, the present disclosure will be described in detail by taking the cleaning device 10 as a handheld scrubber.

[0088] Specifically, as shown in FIG. 1, the handheld scrubber includes a machine body 100 and a cleaning base 200. The machine body 100 includes opposite first and second ends along the length direction thereof, and the cleaning base 200 is connected to the second end of the machine body 100. The machine body 100 is provided with a handle assembly 140 connected to the first end of the machine body 100 away from the cleaning base 200, for a user to hold and operate. The user holds and operates the handle assembly 140 to control the cleaning base 200 to move on the surface to be cleaned, so as to achieve the cleaning purpose of the surface to be cleaned.

[0089] The cleaning base 200 is hingedly connected to the machine body 100, for example, pivotally connected, ball-joint connected, etc. When the user holds and operates the handle assembly 140 to control the cleaning base 200 to move on the surface to be cleaned, the hinge connection between the cleaning base 200 and the machine body 100 can adjust the relative angle between the machine body 100 and the cleaning base 200, so as to change the operation angle and flexibly adjust the cleaning posture, thereby facilitating the cleaning operation.

[0090] As shown in FIGS. 2-4, the main body 110 of the machine body 100 is provided with a clean water tank 120 and a sewage tank 130. When the cleaning head on the cleaning base 200 of the scrubber is used for mopping the floor, the clean water tank 120 cooperates with the liquid supply assembly to provide cleaning liquid to the cleaning head to mop the floor. The sewage tank 130 is configured to collect sewage, so that the sewage generated when the floor is mopped and the collected debris are extracted into the sewage tank 130 by the suction channel using a negative pressure device. Therefore, it is necessary to accurately determine whether the sewage tank 130 is full of sewage.

[0091] To this end, an embodiment of the present disclosure provides a sewage tank 130, as shown in FIGS. 5-7, the sewage tank 130 includes a tank body 131 and a liquid level monitoring assembly 138, the tank body 131 forms an accommodation space 1311; the top of the tank body 131 along the height direction Z is provided with an open end of the accommodation space 1311, and the bottom of the tank body 131 is provided with a sewage inlet 1312; the liquid level monitoring assembly 138 includes a first monitoring point 13851 and a second monitoring point 1352 located in the accommodation space 1311, and the second monitoring point 1352 is located above the first monitoring point 13851 in the height direction Z of the tank body 131.

[0092] The sewage tank provided by the present disclosure, when the handheld scrubber is in a normal working angle, the ground included angle of the body of the handheld scrubber is about 45°, at this time, the sewage tank is also in a normal state of about 45°; when the handheld scrubber is in a lying working angle, the body of the handheld scrubber is basically parallel to the ground, at this time, the sewage tank is also in a lying state of being basically parallel to the ground; because the sewage tank is in the normal state of about 45° and the lying state of being basically parallel to the ground, the sewage level in the sewage tank will change, if the sewage level in the sewage tank in the normal state and the lying state cannot be accurately monitored, the handheld scrubber cannot continue to work normally after the sewage in the sewage tank is full, which seriously affects the user experience; the first monitoring point at the lower position can monitor the sewage level in the tank when the sewage tank is in the normal state, when the sewage level reaches the height of the first monitoring point, the sewage continuously immerses the first monitoring point, and it can be determined that the sewage in the sewage tank is full, at this time, the second monitoring point at the higher position is not immersed by the sewage; the second monitoring point at the upper position can monitor the sewage level in the tank when the sewage tank is in the lying state, when the sewage level reaches the height of the second monitoring point, the sewage continuously immerses the second monitoring point, at this time, it can be determined that the sewage in the sewage tank is full; through the first monitoring point and the second monitoring point at different heights, accurate judgment of whether the sewage in the sewage tank is full in the normal state and the lying state is realized, so that the phenomenon that the sewage in the sewage tank cannot be detected in time after being full is avoided, therefore, the phenomenon that too much water vapor enters the negative pressure device after the sewage is full without timely shutdown is also avoided, the safety of the negative pressure device is improved, and the service life of the negative pressure device is increased.

[0093] When the handheld scrubber is in a normal working angle, the ground included angle of the body 100 of the handheld scrubber is about 45°, as shown in FIG. 6, at this time, the sewage tank 130 is also in a normal state of about 45°; when the handheld scrubber is in a lying working angle, the body 100 of the handheld scrubber is basically parallel to the ground, as shown in FIG. 7, at this time, the sewage tank 130 is also in a lying state of being basically parallel to the ground; because the sewage tank 130 is in the normal state of about 45° and the lying state of being basically parallel to the ground, the sewage level in the sewage tank 130 will change, if the sewage level in the sewage tank 130 in the normal state and the lying state cannot be accurately monitored, the handheld scrubber cannot continue to work normally after the sewage in the sewage tank 130 is full, which seriously affects the user experience.

[0094] The sewage tank 130 provided by the present disclosure can monitor the sewage level in the tank body 131 when the sewage tank 130 is in a lying state through the first monitoring point 13851 at a lower position. When the sewage level reaches the height of the first monitoring point 13851, the sewage continuously submerges the first monitoring point 13851, and it can be determined that the sewage in the sewage tank 130 is full. At this time, the second monitoring point 1352 at a higher position is not submerged by the sewage. The sewage level in the tank body 131 when the sewage tank 130 is in a lying state can be monitored through the second monitoring point 1352 at a higher position. When the sewage level reaches the height of the second monitoring point 1352, the sewage continuously submerges the second monitoring point 1352, and it can be determined that the sewage in the sewage tank 130 is full. Through the first monitoring point 13851 and the second monitoring point 1352 at different heights, accurate judgment can be made on whether the sewage in the sewage tank 130 is full in the normal state and the lying state, so that the phenomenon that the sewage in the sewage tank 130 cannot be detected in time after the sewage is full can be avoided. Therefore, the phenomenon that too much water vapor enters the negative pressure device after the sewage is full without timely shutdown can be avoided, the safety of the negative pressure device is improved, and the service life of the negative pressure device is increased.

[0095] In some embodiments, as shown in FIG. 5, the liquid level monitoring assembly 138 includes a first monitoring rod 1381 and a second monitoring rod 1382. The first monitoring rod 1381 and the second monitoring rod 1382 are located in the accommodation space 1311 and extend along the height direction Z. The first monitoring rod 1381 and the second monitoring rod 1382 are both formed with a first monitoring point 13851 and a second monitoring point 1352. One of the first monitoring rod 1381 and the second monitoring rod 1382 is positive, and the other is negative.

[0096] When the sewage tank 130 is in a normal working angle, and the sewage level reaches the height of the first monitoring point 13851, the first monitoring point 13851 on the positive monitoring rod and the negative monitoring rod is continuously submerged by the sewage, and a loop is formed through the sewage. It can be determined that the sewage in the sewage tank 130 is full. At this time, the second monitoring point 1352 at a higher position on the first monitoring rod 1381 and the second monitoring rod 1382 is not submerged by the sewage. When the sewage tank 130 is in a lying working angle, and the sewage level reaches the height of the second monitoring point 1352, the first monitoring point 13851 and the second monitoring point 1352 on the positive monitoring rod and the negative monitoring rod are continuously submerged by the sewage, and two parallel loops are formed through the sewage. It can be determined that the sewage in the sewage tank 130 is full.

[0097] The controller can be arranged on the sewage tank 130 or other structural components of the cleaning device 10, and the electrical signal between the first monitoring rod 1381 and the second monitoring rod 1382 is determined by the controller. For example, when the first monitoring point 13851 on the positive monitoring rod and the negative monitoring rod is connected through the sewage to form a loop, a fixed voltage can be set to determine the current and thus the height of the liquid level; or the resistance between the positive monitoring rod and the negative monitoring rod can be determined to determine the height of the liquid level. When the first monitoring point 13851 and the second monitoring point 1352 on the positive monitoring rod and the negative monitoring rod are connected through the sewage to form two parallel loops, the height of the liquid level of the sewage tank 130 in the lying state can be determined by determining the size of the current; or the resistance between the positive monitoring rod and the negative monitoring rod can be determined to determine the height of the liquid level.

[0098] Due to the shaking of the sewage in the tank 131 during the movement of the sewage tank 130, the liquid level will rise temporarily when the sewage is shaken, which will cause the monitoring point to be submerged temporarily, resulting in false reporting of the liquid level. In this case, when the monitoring point on the positive monitoring rod and the negative monitoring rod is connected, the controller obtains the change of the electrical signal, and the preset delay time can be set by the controller at this time; if the duration of the changed electrical signal is greater than the preset delay time, it is determined that the liquid level reaches the monitoring point; if the duration of the changed electrical signal is less than or equal to the preset delay time, it is determined that the liquid level does not reach the monitoring point, thereby avoiding false reporting of the liquid level and improving the accuracy of the liquid level monitoring.

[0099] The preset delay time can be greater than three seconds, for example, four seconds, five seconds, etc., and the present disclosure does not limit this. By controlling the preset delay time, i.e. the time of the connection between the monitoring points, the water volume of the full water alarm can be further controlled, and the adjustment of the alarm volume of the normal full water and the lying full water can be realized.

[0100] The inclination angle of the machine body 100 can be monitored by the IMU (inertial measurement) on the machine body 100, and different angles can correspond to different preset delay times, so as to accurately control the alarm volume of the tank 131 when it is full at different angles. For example, the smaller the inclination angle between the machine body 100 and the ground, the easier it is for the sewage to submerge the second monitoring point 1352, and the preset delay time can be relatively increased.

[0101] In some embodiments, the first monitoring rod 1381 and the second monitoring rod 1382 are at the same height as the first monitoring point 13851 on the second monitoring rod 1382 in the height direction Z of the box 131, and the sewage can submerge the first monitoring rod 1381 and the second monitoring rod 1382 at the same time; or the first monitoring rod 1381 and the second monitoring rod 1382 are at the same height as the second monitoring point 1352 on the second monitoring rod 1382, and the sewage can submerge the first monitoring rod 1381 and the second monitoring rod 1382 at the same time; or the first monitoring rod 1381 and the second monitoring rod 1382 are at the same height as the first monitoring point 13851 on the second monitoring rod 1382, and the first monitoring rod 1381 and the second monitoring rod 1382 are at the same height as the second monitoring point 1352 on the second monitoring rod 1382, and the sewage can submerge the first monitoring rod 1381 and the second monitoring rod 1382 at the same time.

[0102] Of course, the first monitoring rod 1381 and the second monitoring rod 1382 can have a height difference at the first monitoring point 13851, and the first monitoring rod 1381 and the second monitoring rod 1382 can also have a height difference at the second monitoring point 1352, which is not limited in the present disclosure.

[0103] In some embodiments, as shown in FIGS. 5-7, the first monitoring rod 1381 has the first monitoring point 13851 at the end of the first monitoring rod 1381; or the first monitoring point 13851 on the second monitoring rod 1382 is located at the end of the second monitoring rod 1382; or the first monitoring rod 1381 has the first monitoring point 13851 at the end of the first monitoring rod 1381, and the first monitoring point 13851 on the second monitoring rod 1382 is also located at the end of the second monitoring rod 1382, which can relatively shorten the length of the monitoring rod, ensure the reliability of the monitoring rod, and avoid the monitoring rod occupying too much space in the box 131.

[0104] Of course, the first monitoring rod 1381 can also not have the first monitoring point 13851 at the end of the first monitoring rod 1381, and the first monitoring point 13851 on the second monitoring rod 1382 can also not be located at the end of the second monitoring rod 1382, which is not limited in the present disclosure.

[0105] In some embodiments, as shown in FIGS. 8 and 9, the first monitoring rod 1381 and the second monitoring rod 1382 each include a conductive column 13861 and an insulating layer 13862 covering the conductive column 13861, and the conductive column 13861 is exposed at the first monitoring point 13851 and the second monitoring point 1352 through the insulating layer 13862.

[0106] The insulating layer 13862 can be a plastic material layer formed on the surface of the metal conductive column 13861 by an injection molding process, and the monitoring rod formed thereby has high corrosion resistance and stability.

[0107] In some embodiments, the sewage tank 130 further comprises a separation assembly 132, at least a part of the separation assembly 132 being located in the containing space 1311, the separation assembly 132 being formed with an air duct in the containing space 1311, an inlet of the air duct being in communication with the sewage inlet 1312, an outlet of the air duct being used for connecting a negative pressure device, and a middle part of the air duct being in communication with the containing space 1311.

[0108] The liquid level monitoring assembly 138 is connected to the separation assembly 132, that is, the liquid level monitoring assembly 138 can be taken out of the tank 131 through the separation assembly 132, so as to avoid affecting the dumping of sewage and sundries.

[0109] In some embodiments, the liquid level monitoring assembly comprises a first liquid level sensor and a second liquid level sensor, the first liquid level sensor being formed with a first monitoring point, and the second liquid level sensor being formed with a second monitoring point. By arranging two liquid level sensors with different heights, the height of the liquid level can be directly monitored.

[0110] The first liquid level sensor and the second liquid level sensor can be coaxially arranged or misaligned in the height direction.

[0111] In some embodiments, as shown in FIG. 10, the separation assembly 132 is formed with a first air duct 13241, a second air duct 13242 and a third air duct 13243 in the containing space 1311, an inlet of the first air duct 13241 being in communication with the sewage inlet 1312, an outlet of the first air duct 13241 being located on one side close to the top and in communication with an inlet of the second air duct 13242, an outlet of the second air duct 13242 being located on one side close to the bottom and in communication with the containing space 1311; an inlet of the third air duct 13243 being located on one side close to the bottom and in communication with the containing space 1311, and an outlet of the third air duct 13243 being located on one side close to the top and used for connecting a negative pressure device of the cleaning device 10, for example, a fan.

[0112] The separation assembly 132 forms the first air duct 13241, the second air duct 13242 and the third air duct 13243 in the containing space 1311; the sewage in the sewage tank 130 enters the sewage tank 130 through the sewage inlet 1312, and then passes through the first air duct 13241 and the second air duct 13242; because the outlet of the first air duct 13241 is located on the side close to the top and communicates with the inlet of the second air duct 13242, and the outlet of the second air duct 13242 is located on the side close to the bottom and communicates with the containing space 1311, that is, after the sewage is extracted upward from the first air duct 13241 through the sewage inlet 1312, the sewage is turned by 180° through the first air duct 13241 and the second air duct 13242, so that the sewage moves downward and falls to the bottom of the sewage tank 130; the gas is turned upward through the third air duct 13243, so that the moving directions of the sewage and the gas are reversed by 180°, thereby greatly improving the gas-water separation effect, so that the amount of water vapor entering the fan is reduced, and the safety and service life of the fan are improved.

[0113] In some embodiments, as shown in FIGS. 10-13, the separation assembly 132 includes a separation bracket 1321, the separation bracket 1321 includes a mounting portion 13211 and an air duct portion 13212, the separation bracket 1321 is assembled on the open end 1313 of the sewage tank 130 through the mounting portion 13211, and the second air duct 13242 is formed on the air duct portion 13212, and the third air duct 13243 is formed by cooperation of the air duct portion 13212 and the side wall of the sewage tank 130.

[0114] The separation assembly 132 is assembled with the tank body 131 through the mounting portion 13211, so that the air duct portion 13212 of the separation assembly 132 extends into the containing space 1311 through the open end of the tank body 131; the second air duct 13242 is directly formed by the air duct portion 13212, and the third air duct 13243 is formed by cooperation of the air duct portion 13212 and the side wall of the sewage tank 130, that is, the third air duct 13243 is formed by cooperation of the original other structures, so that the third air duct 13243 can have a larger area, thereby improving the smoothness of the third air duct 13243 and the gas-water separation effect.

[0115] In some embodiments, as shown in FIG. 11, the liquid level monitoring assembly 138 is connected to the separation bracket 1321, that is, the liquid level monitoring assembly 138 can be taken out of the tank body 131 through the separation bracket 1321, so as not to affect the dumping of the sewage and the sundries.

[0116] The separation bracket 1321 is provided with a plurality of mounting holes, and the first monitoring rod 1381 and the second monitoring rod 1382 are respectively inserted into the corresponding mounting holes, so as to facilitate assembly of the first monitoring rod 1381 and the second monitoring rod 1382.

[0117] In some embodiments, as shown in FIG. 11, the liquid level monitoring assembly 138 further comprises a first contact electrode 1383 and a second contact electrode 1384, which are arranged on the mounting portion 13211; the first contact electrode 1383 is connected with the first monitoring rod 1381, and the second contact electrode 1384 is connected with the second monitoring rod 1382. By arranging the first contact electrode 1383 and the second contact electrode 1384, the first monitoring rod 1381 is connected with the controller through the first contact electrode 1383, and the second monitoring rod 1382 is connected with the controller through the second contact electrode 1384, so as to realize the monitoring of the controller on the change of the electric signal.

[0118] In some embodiments, as shown in FIG. 11, the liquid level monitoring assembly 138 further comprises a first contact electrode 1383 and a second contact electrode 1384, which are arranged on the mounting portion 13211; the first contact electrode 1383 is connected with the first monitoring rod 1381, and the second contact electrode 1384 is connected with the second monitoring rod 1382. By arranging the first contact electrode 1383 and the second contact electrode 1384, the first monitoring rod 1381 is connected with the controller through the first contact electrode 1383, and the second monitoring rod 1382 is connected with the controller through the second contact electrode 1384, so as to realize the monitoring of the controller on the change of the electric signal.

[0119] In some embodiments, as shown in FIGS. 10-13, the air duct portion 13212 comprises an air guide pipe 132120, and the air guide pipe 132120 forms the second air duct 13242. By forming the second air duct 13242 through the air guide pipe 132120, the volume of the second air duct 13242 in the accommodation space 1311 is reduced, and the drainage effect on the sewage can be improved.

[0120] In some embodiments, as shown in FIGS. 10-13, the air guide pipe 132120 comprises a pipe body 132121 and an elbow 132122, the outlet of the elbow 132122 is sealingly connected with the pipe body 132121, and the inlet of the elbow 132122 is in communication with the outlet of the first air duct 13241. The elbow 132122 and the pipe body 132121 form the second air duct 13242, the second air duct 13242 forms a first 90° turning at the elbow 132122, and a second 90° turning at the position where the elbow 132122 is connected with the pipe body 132121, so that the sewage entering the first air duct 13241 realizes a 180° turning through the second air duct 13242.

[0121] The wind pipe body 132121 and the elbow 132122 can be detachably connected through thread connection, clamping, etc. A first sealing ring 132123 can be arranged between the positions where the wind pipe body 132121 and the elbow 132122 are connected, so as to improve the sealing performance of the connection between the wind pipe body 132121 and the elbow 132122, and avoid sewage leakage from the connection position or air leakage from the connection position, which reduces the air-water separation effect. Of course, the wind pipe body 132121 and the elbow 132122 can also be fixedly connected through adhesion, welding, etc. The wind pipe body 132121 and the elbow 132122 can also be integrally formed, and the present disclosure does not limit this.

[0122] The air guide pipe 132120 of the separation support 1321 is formed with an extension 132125 on both sides in the thickness direction Y of the box body 131. The extension 132125 on both sides is in sealing contact with the side wall 1315 of the box body 131, so as to form a third air duct 13243 by the air guide pipe 132120, the extensions 132125 on both sides and the side wall 1315 of the box body 131. A rubber sealing member can be arranged between the extension 132125 and the side wall 1315 of the box body 131, so as to improve the sealing effect between the extension 132125 and the side wall 1315.

[0123] The first monitoring rod 1381 and the second monitoring rod 1382 are located on both sides of the air guide pipe 132120 in the thickness direction Y of the box body 131. In the width direction X of the box body 131, the first monitoring rod 1381 and the second monitoring rod 1382 can be located at the middle position of the box body 131, so as to improve the accuracy of liquid level monitoring.

[0124] In some embodiments, as shown in FIG. 10, the air duct part 13212 further includes a sewage inlet pipe 1322. The sewage inlet pipe 1322 is formed with a first air duct 13241. The inlet of the sewage inlet pipe 1322 is connected to the sewage inlet 1312 on the box body 131, and the inlet of the air guide pipe 132120 is sealingly inserted into the outlet of the sewage inlet pipe 1322. The first air duct 13241 is formed by the sewage inlet pipe 1322, cooperates with the second air duct 13242 of the air duct part 13212 on the separation support 1321, and realizes 180° turning of the sewage, so that the sewage moves downward and falls to the bottom of the sewage tank 130. The sewage inlet pipe 1322 and the separation support 1321 are arranged in a sealingly inserted connection mode, which facilitates taking out the separation support 1321 from the sewage tank 130 to pour out the sewage in the sewage tank 130 from the open end 1313.

[0125] When the air duct 132120 includes the air duct body 132121 and the elbow 132122, the elbow 132122 and the water inlet pipe can be connected together by insertion. By providing the elbow 132122, the insertion direction of the elbow 132122 and the water inlet pipe can be adjusted, so that the insertion direction of the elbow 132122 and the water inlet pipe is along the height direction Z of the box body 131, thereby facilitating the removal of the separation bracket 1321 from the box body 131.

[0126] As shown in FIG. 10, when the elbow 132122 is inserted with the water inlet pipe, the outlet end of the water inlet pipe can be located in the inlet end of the elbow 132122. Since the elbow 132122 is connected with the water inlet pipe as a driving part when the elbow 132122 is inserted with the water inlet pipe, by designing the inlet of the elbow 132122 to be larger, the elbow 132122 can be sleeved on the water inlet pipe, thereby facilitating the assembly of the separation bracket 1321 on the box body 131.

[0127] When the elbow 132122 is inserted with the water inlet pipe, a second sealing ring 132124 can be arranged between the elbow 132122 and the water inlet pipe to improve the sealing performance after the insertion of the elbow 132122 and the water inlet pipe, thereby avoiding sewage leakage from the connection position or air leakage at the connection position to reduce the gas-water separation effect. The second sealing ring 132124 can be arranged on the inner wall of the elbow 132122 or the outer wall of the water inlet pipe. When the second sealing ring 132124 is arranged on the elbow 132122, the second sealing ring 132124 can be clamped on the elbow 132122 by elastic force, for example, the second sealing ring 132124 is provided with a plurality of positioning protrusions, and the elbow 132122 is provided with a plurality of positioning holes. The second sealing ring 132124 is arranged on the inner wall of the elbow 132122, and the plurality of positioning protrusions are located in the plurality of positioning holes to form the clamping of the second sealing ring 132124 on the elbow 132122. The second sealing ring 132124 can be replaced when it is used for a long time or fails to seal.

[0128] In some embodiments, as shown in FIG. 10, the outlet of the second air duct 13242 and the inlet of the third air duct 13243 can be at the same height in the height direction Z. By making the outlet of the second air duct 13242 and the inlet of the third air duct 13243 at the same height, when the sewage and the gas are discharged from the outlet of the second air duct 13242, the gas can be turned by 180° in time and discharged upward through the third air duct 13243, thereby improving the gas-water separation effect.

[0129] In some embodiments, as shown in FIGS. 10-13, the sewage tank 130 further comprises an upper cover 133 fixedly connected with the mounting portion 13211. By providing the upper cover 133, the sewage tank 130 is connected with the separation assembly 132 to form a seal for the same open end 1313.

[0130] The upper cover 133 can be provided with a switch assembly 137 to form a switch connection between the sewage tank 130 and the main body 110 of the machine. For example, a press switch assembly 137 can be provided to form a switch connection between the sewage tank 130 and the main body 110 of the machine, facilitating disassembly and assembly of the sewage tank 130.

[0131] The first contact electrode 1383 and the second contact electrode 1384 are exposed through the via hole of the upper cover 133. When the sewage tank 130 is connected with the main body 100 of the machine, the first contact electrode 1383 and the second contact electrode 1384 exposed on the upper cover 133 can be in contact with the electrodes on the main body 100 of the machine, thereby conducting the controller and the first contact electrode 1383 and the second contact electrode 1384 to form a monitoring loop.

[0132] The exposed portions of the first contact electrode 1383 and the second contact electrode 1384 from the via hole of the upper cover 133 can be in an elastic structure to improve the reliability of contact with the electrodes on the main body 100 of the machine. The elastic structure can be, for example, a metal spring structure.

[0133] In some embodiments, as shown in FIGS. 14 and 15, the tank body 131 comprises a bottom plate 1314 and a side wall 1315, which enclose a containing space, and the sewage inlet 1312 is provided on the bottom plate 1314.

[0134] In the width direction X of the tank body 131, the sewage inlet pipe 1322 is provided close to the side wall of one side of the sewage tank 130, and the outlet of the sewage inlet pipe 1322 is inclinedly provided towards the side wall of the opposite side of the sewage tank 130. When the sewage in the sewage tank 130 is full, the sewage accumulated in the tank body 131 needs to be poured out through the open end 1313. Since the sewage inlet pipe 1322 is fixedly connected to the sewage inlet 1312 of the tank body 131, when the water is poured from the rear side of the tank body 131, there is a phenomenon of backflow of sewage from the sewage inlet, causing the sewage to flow out from the sewage inlet 1312 at the bottom of the tank body 131, which can easily soil the user's clothes and shoes, seriously affecting the user's experience. By inclining the outlet of the sewage inlet pipe 1322 towards the side wall of the opposite side of the sewage tank 130, the outlet of the sewage inlet pipe 1322 can be completely kept above the liquid level, avoiding the sewage from flowing out from the sewage inlet 1312 at the bottom of the tank body 131, and improving the user's experience.

[0135] As shown in FIG. 15, the angle ∠A between the plane where the outlet of the sewage inlet pipe 1322 is located and the central axis of the sewage inlet pipe 1322, that is, the angle ∠A at which the outlet is inclined toward the side wall of the other side of the sewage tank 130 opposite to the sewage inlet pipe 1322 can be 20°-60°, so that the outlet of the sewage inlet pipe 1322 can be completely kept above the liquid level, while not affecting the smoothness of the air duct formed after the connection with the elbow 132122. For example, the angle ∠A can be 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, and the like, which are not listed one by one in the present disclosure. Of course, the angle ∠A can also be less than 20° or greater than 60°, which is not limited in the present disclosure.

[0136] In some embodiments, the sewage inlet pipe 1322 and the tank body 131 can be integrally formed to improve the structural strength of the sewage inlet pipe 1322, thereby improving the sealing performance when the sewage inlet pipe 1322 is inserted into the elbow 132122. Of course, the sewage inlet pipe 1322 and the tank body 131 can also be a split structure, for example, connected together by bonding, welding, threaded connection, clamping, and the like, which is not limited in the present disclosure.

[0137] In some embodiments, the sewage tank 130 is provided with a grabbing assembly 136, which is located on the side wall of the tank body 131 opposite to the sewage inlet pipe 1322. By providing the grabbing assembly 136, it is convenient to lift the tank body 131 to pour out the sewage from the rear side of the tank body 131.

[0138] In some embodiments, the grabbing assembly 136 can include a grabbing plate connected to the tank body 131 by an elastic member. When the grabbing plate is not grabbed, the grabbing plate is in the original position by the elastic member. When the grabbing plate is in the original position, the grabbing plate can be substantially flush with the outer surface of the tank body 131 to avoid the grabbing plate being easily hung with foreign matters and improve the appearance of the sewage tank 130. When the user lifts the sewage tank 130 by the grabbing plate, the bottom of the grabbing plate can be turned toward the outside of the tank body 131 to increase the grabbing space and facilitate the user to exert force. When the user releases the grabbing plate, the grabbing plate can be returned to the initial position by the elastic restoring force of the elastic member.

[0139] In some embodiments, as shown in FIGS. 14 and 15, in the width direction X of the tank body 131, the sewage inlet pipe 1322 is arranged close to the side wall of the sewage tank 130. At least part of the pipe body of the sewage inlet pipe 1322 extending from the sewage inlet 1312 to the outlet side of the sewage inlet pipe 1322 has a containing space 1311 between the side wall of the other side of the sewage tank 130 opposite to the sewage inlet pipe 1322.

[0140] The side of the at least part of the pipe body of the sewage inlet pipe 1322 extending from the sewage inlet opening 1312 towards the outlet side of the sewage inlet pipe 1322 is not provided with the containing space 1311, avoiding the situation that sundries and the like are stuck in a narrow space and cannot be removed, thereby avoiding the phenomenon that the user manually removes the sundries, and improving the user experience.

[0141] When the sewage inlet pipe 1322 and the box body 131 are integrally formed, the at least part of the pipe body of the sewage inlet pipe 1322 extending from the sewage inlet opening 1312 towards the outlet side of the sewage inlet pipe 1322 can be used as the side wall of the box body 131, that is, the part of the outline of the sewage inlet pipe 1322 can be displayed from the peripheral outline of the box body 131, and the position of the sewage inlet pipe 1322 in the box body 131 can be a heterogeneous structure. The structure can be matched with the positioning structure on the machine body 110 to form the positioning of the assembly of the sewage tank 130 on the machine body 110, thereby improving the assembly accuracy of the sewage tank 130.

[0142] In some embodiments, as shown in FIGS. 16-18, the separation assembly 132 further comprises a filter 1323 arranged in the containing space 1311 and dividing the containing space 1311 into a first containing space 13111 and a second containing space 13112 along the height direction Z, and the filter 1323 is provided with a relief gap 13234 in which the sewage inlet pipe 1322 is located.

[0143] The filter 1323 is arranged to filter the solid sundries in the sewage, so that the sundries in the sewage are filtered out, thereby avoiding the situation that the sundries block the sewage outlet in the user's use scenario when the sewage is poured. The relief gap 13234 arranged on the filter 1323 cooperates with the sewage inlet pipe 1322 to form the filtering of the solid sundries, thereby avoiding the situation that the sundries are missed in the second containing space 13112 below the filter 1323.

[0144] The filter 1323 is connected with the separation bracket 1321, and the filter 1323 can be taken out at the same time when the separation bracket 1321 is taken out, so as to pour out the filtered sundries.

[0145] The filter 1323 is connected with the separation bracket 1321 through the connecting rod 13235. The connecting rod 13235 and the separation bracket 1321 can be detachably connected, for example, the connecting rod 13235 and the separation bracket 1321 are detachably connected through thread connection, clamping or the like. Of course, the connecting rod 13235 and the separation bracket 1321 can also be fixedly connected through bonding, welding or the like, which is not limited in the present disclosure.

[0146] In some embodiments, as shown in FIGS. 16-18, the filter 1323 includes a first filter portion 13231 corresponding to the second air duct 13242 and a second filter portion 13232 corresponding to the third air duct 13243, and the first filter portion 13231 is arranged closer to the bottom of the box body 131 than the second filter portion 13232 in the height direction Z. By arranging the first filter portion 13231 closer to the bottom of the box body 131 than the second filter portion 13232, more solid impurities can be accommodated on the filter 1323.

[0147] In some embodiments, as shown in FIGS. 16-18, the filter 1323 includes a first filter portion 13231 corresponding to the second air duct 13242 and a second filter portion 13232 corresponding to the third air duct 13243, and the first filter portion 13231 is arranged closer to the bottom of the box body 131 than the second filter portion 13232 in the height direction Z. By arranging the first filter portion 13231 closer to the bottom of the box body 131 than the second filter portion 13232, more solid impurities can be accommodated on the filter 1323.

[0148] In some embodiments, as shown in FIGS. 16-18, the filter 1323 includes a first filter portion 13231 corresponding to the second air duct 13242 and a second filter portion 13232 corresponding to the third air duct 13243, and the first filter portion 13231 is arranged closer to the bottom of the box body 131 than the second filter portion 13232 in the height direction Z. By arranging the first filter portion 13231 closer to the bottom of the box body 131 than the second filter portion 13232, more solid impurities can be accommodated on the filter 1323.

[0149] In some embodiments, as shown in FIGS. 16-18, the filter 1323 includes a first filter portion 13231 corresponding to the second air duct 13242 and a second filter portion 13232 corresponding to the third air duct 13243, and the first filter portion 13231 is arranged closer to the bottom of the box body 131 than the second filter portion 13232 in the height direction Z. By arranging the first filter portion 13231 closer to the bottom of the box body 131 than the second filter portion 13232, more solid impurities can be accommodated on the filter 1323.

[0150] In some embodiments, as shown in FIGS. 16-18, the filter 1323 includes a first filter portion 13231 corresponding to the second air duct 13242 and a second filter portion 13232 corresponding to the third air duct 13243, and the first filter portion 13231 is arranged closer to the bottom of the box body 131 than the second filter portion 13232 in the height direction Z. By arranging the first filter portion 13231 closer to the bottom of the box body 131 than the second filter portion 13232, more solid impurities can be accommodated on the filter 1323.

[0151] In some embodiments, as shown in FIG. 19, the separation assembly 132 further includes a first gas-water separation member 134 arranged in the third air duct 13243. By arranging the first gas-water separation member 134 in the third air duct 13243, the gas-water separation can be directly performed in the air duct of the sewage tank 130, further improving the gas-water separation effect.

[0152] As shown in FIG. 19, the first gas-water separation piece 134 is provided with a plurality of filtering micropores arranged in an array. The gas can pass through the micropores, and the water in the gas is blocked by the micropores to form effective separation of the gas and water.

[0153] The first gas-water separation piece 134 is detachably connected to the separation support 1321. For example, the first gas-water separation piece 134 is detachably connected to the separation support 1321 by a threaded member or a clamping member, so as to facilitate assembly and disassembly and maintenance of the first gas-water separation piece 134.

[0154] The first gas-water separation piece 134 is obliquely arranged in the third air duct 13243, so as to relatively increase the area of the steam-water separation part on the first gas-water separation piece 134 and improve the gas-water separation capacity.

[0155] In some embodiments, as shown in FIGS. 20 and 21, the separation assembly 132 further includes a second gas-water separation piece 135 arranged at the outlet of the third air duct 13243. The second gas-water separation piece 135 cooperates with the first gas-water separation piece 134 to form a two-stage filtration, so as to improve the gas-water separation effect. When the second gas-water separation piece 135 is a HEPA (High efficiency particulate air Filter) filter screen, the service life of the second gas-water separation piece 135 can be increased.

[0156] The second gas-water separation piece 135 is detachably connected to the cover plate. For example, the second gas-water separation piece 135 is detachably connected to the cover plate by a clamping member or a threaded member, so as to facilitate assembly and disassembly and maintenance of the second gas-water separation piece 135.

[0157] The second gas-water separation piece 135 is obliquely arranged at the outlet of the third air duct 13243, so as to relatively increase the area of the steam-water separation part on the second gas-water separation piece 135 and improve the gas-water separation capacity.

[0158] The embodiments of the present disclosure further provide a cleaning system, as shown in FIGS. 22 and 23, which includes the base station 20 and the cleaning device 10 provided in the above embodiments. The base station 20 is used for parking the cleaning device 10, and the cleaning device 10 can be parked on the base station 20 to perform functions such as charging, self-cleaning, sewage discharge, and water replenishment. The beneficial effects of the cleaning system provided by the present disclosure are described in detail in the above cleaning device embodiments, which will not be repeated here.

[0159] Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the features disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

[0160] It should be understood that the present disclosure is not limited to the precise structures as herein described and illustrated in the drawings, and that various modifications and changes can be made without departing from its scope. The scope of the present disclosure is limited only by the claims that follow.

Claims

1. A sewage tank, comprising: a tank body, the tank body being formed with a containing space, a top of the tank body being provided with an open end of the containing space in a height direction, and a bottom of the tank body being provided with a sewage inlet; a liquid level monitoring assembly, the liquid level monitoring assembly comprising a first monitoring point and a second monitoring point in the containing space, the second monitoring point being located above the first monitoring point in the height direction.

2. The sump tank of claim 1, wherein, The liquid level monitoring assembly comprises: a first monitoring rod and a second monitoring rod, the first monitoring rod and the second monitoring rod being located in the containing space and extending in the height direction, the first monitoring rod and the second monitoring rod being formed with the first monitoring point and the second monitoring point, one of the first monitoring rod and the second monitoring rod being positive and the other being negative.

3. The sump tank of claim 2, wherein, The first monitoring point on the first monitoring rod and the second monitoring rod is consistent in height in the height direction, and / or the second monitoring point on the first monitoring rod and the second monitoring rod is consistent in height in the height direction.

4. The sump tank of claim 2, wherein, The first monitoring point on the first monitoring rod is located at an end of the first monitoring rod, and / or the first monitoring point on the second monitoring rod is located at an end of the second monitoring rod.

5. The sump tank of any one of claims 2 to 4, wherein, The first monitoring rod and the second monitoring rod each comprise a conductive column and an insulating layer covering the conductive column, the conductive column being exposed at the first monitoring point and the second monitoring point through the insulating layer. 6.The sewage tank according to any one of claims 2 to 5, further comprising: a separation assembly, at least part of the separation assembly being located in the containing space, the separation assembly being formed with an air duct in the containing space, an inlet of the air duct being in communication with the sewage inlet, an outlet of the air duct being used to connect a negative pressure device, and a middle part of the air duct being in communication with the containing space; wherein the liquid level monitoring assembly is connected to the separation assembly.

7. The sump tank of claim 6, wherein, The separation assembly comprises: a separation support, the separation support comprising a mounting portion and an air duct portion, the separation support being assembled to the open end of the sewage tank through the mounting portion, and the air duct portion being formed with at least part of the air duct; wherein the liquid level monitoring assembly is connected to the separation support.

8. The sump tank of claim 7, wherein, The separation support is provided with a plurality of mounting holes, and the first monitoring rod and the second monitoring rod are respectively inserted into corresponding mounting holes.

9. The sump tank of claim 7 or 8, wherein, The liquid level monitoring assembly further comprises: a first contact electrode and a second contact electrode, the first contact electrode and the second contact electrode being provided on the mounting portion, the first contact electrode being connected to the first monitoring rod, and the second contact electrode being connected to the second monitoring rod. 10.The sewage tank according to claim 9, further comprising: an upper cover, the upper cover being fixedly connected to the mounting portion, and the first contact electrode and the second contact electrode being exposed through the upper cover.

11. The sump tank of any one of claims 7 to 10, wherein, The air duct comprises a first air duct, a second air duct and a third air duct. The inlet of the first air duct is communicated with the sewage inlet. The outlet of the first air duct is located on one side close to the top and communicated with the inlet of the second air duct. The outlet of the second air duct is located on one side close to the bottom and communicated with the containing space. The inlet of the third air duct is located on one side close to the bottom and communicated with the containing space. The outlet of the third air duct is located on one side close to the top and used for connecting a negative pressure device.

12. The sump tank of claim 11, wherein, The second air duct is formed on the air duct part. The air duct part and the side wall of the sewage tank form the third air duct.

13. The sump tank of claim 12, wherein, The air duct part comprises a wind guide pipe. The wind guide pipe forms the second air duct.

14. The sump tank of claim 13, wherein, The wind guide pipe comprises a wind pipe body and an elbow. The outlet of the elbow is sealingly connected with the wind pipe body. The inlet of the elbow is communicated with the outlet of the first air duct.

15. The sump tank of claim 13, wherein, The separation assembly further comprises: The sewage inlet pipe forms the first air duct. The inlet of the sewage inlet pipe is connected with the sewage inlet on the box. The inlet of the wind guide pipe is sealingly inserted with the outlet of the sewage inlet pipe.

16. The sump tank of claim 15, wherein, In the width direction of the box, the sewage inlet pipe is arranged close to the side wall of the sewage tank. The outlet of the sewage inlet pipe is obliquely arranged towards the side wall of the other side of the sewage tank.

17. The sump tank of claim 15, wherein, In the width direction of the box, the sewage inlet pipe is arranged close to the side wall of the sewage tank. At least part of the pipe body of the sewage inlet pipe extending from the sewage inlet to the outlet of the sewage inlet pipe only has the containing space with the side wall of the other side of the sewage tank.

18. The sump tank of claim 17, wherein, At least part of the pipe body of the sewage inlet pipe extending from the sewage inlet to the outlet of the sewage inlet pipe is the side wall of the box.

19. The sump tank of claim 15, wherein, The separation assembly further comprises: The filter plate is arranged in the containing space and divides the containing space into a first containing space and a second containing space along the height direction. The filter plate is provided with a avoiding gap. The sewage inlet pipe is located in the gap.

20. The sump tank of claim 19, wherein, The filter plate comprises a first filter part corresponding to the second air duct and a second filter part corresponding to the third air duct. In the height direction, the first filter part is arranged close to the bottom of the box relative to the second filter part.

21. The sump tank of claim 20, wherein, The first filter part is in a flat plate shape.

22. The sump tank of claim 19, wherein, The filter plate is connected with the separation support.

23. The sump tank of claim 22, wherein, The filter plate is detachably connected with the separation support.

24. The sump tank of claim 11, wherein, The separation assembly further comprises: The first gas-water separation piece is arranged in the third air duct.

25. The sump tank of claim 24, wherein, The first gas-water separation piece is detachably connected with the separation support.

26. The sump tank of claim 11, wherein, The separation assembly further comprises: The second gas-water separation piece is arranged at the outlet of the third air duct.

27. The sump tank of claim 11, wherein, In the height direction, the outlet of the second air duct is consistent with the inlet of the third air duct in height.

28. The effluent tank of any one of claims 1 to 27, wherein, The liquid level monitoring assembly comprises: The first liquid level sensor forms the first monitoring point. The second liquid level sensor forms the second monitoring point.

29. A cleaning device, comprising: a body and a cleaning base connected to one end of the body; the sewage tank according to any one of claims 1-28, which is detachably connected to the body.

30. A cleaning system comprising: the cleaning apparatus of claim 29; a pile configured to park the cleaning apparatus.

Images