Wastewater tank, cleaning apparatus and cleaning system

Abstract

The present disclosure relates to the technical field of smart homes. Provided are a wastewater tank, a cleaning apparatus and a cleaning system. The wastewater tank comprises: a tank body and a separation assembly, wherein an accommodating space is formed in the tank body; an open end is provided on the tank body, and a wastewater inlet is provided at the bottom of the tank body; at least part of the separation assembly is located in the accommodating space, and the separation assembly forms a first air duct, a second air duct and a third air duct in the accommodating space, with an inlet of the first air duct being in communication with the wastewater inlet, an outlet of the first air duct being located on the side close to the top and being in communication with an inlet of the second air duct, and an outlet of the second air duct being located on the side close to the bottom and being in communication with the accommodating space; and an inlet of the third air duct is located on the side close to the bottom and is in communication with the accommodating space, and an outlet of the third air duct is located on the side close to the top and is configured to connect a negative pressure device of the cleaning apparatus. The wastewater tank provided by the present disclosure improves an air-water separation effect, reduces the amount of water vapor entering the negative pressure device, improves the safety of the negative pressure device, and prolongs the service life thereof.

Description

Sewage tank, cleaning device and cleaning system

[0001] Cross-reference to Related Applications

[0002] The present application claims priority to Chinese Patent Application No. 2024221883441, filed on September 5, 2024, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of smart home, 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, sweepers, etc.) are more time-saving and labor-saving than traditional manual cleaning, and have been used by more and more families. The cleaning device usually includes 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, the machine body of the scrubber is provided with a sewage tank for containing sewage, which is used to recover the sewage when cleaning the floor. However, when the sewage on the floor is recovered into the sewage tank by the negative pressure device on the cleaning device, the effect of separating the sewage and gas in the sewage tank is an important performance indicator of the cleaning device.

[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 along a height direction is provided with an open end of the containing space, and a bottom of the tank body is provided with a sewage inlet;

[0010] a separation assembly, at least a part of which is located in the containing space, the separation assembly forming a first air duct, a second air duct and a third air duct in the containing space, an inlet of the first air duct being in communication with the sewage inlet, an outlet of the first air duct being located on a side close to the top and in communication with an inlet of the second air duct, an outlet of the second air duct being located on a side close to the bottom and in communication with the containing space; an inlet of the third air duct being located on a side close to the bottom and in communication with the containing space, an outlet of the third air duct being located on a side close to the top and being used to connect a negative pressure device of the cleaning device.

[0011] According to another aspect of the present disclosure, there is provided a cleaning device, comprising:

[0012] a machine body and a cleaning base connected to one end of the machine body;

[0013] the sewage tank of any of the above embodiments, which is detachably connected to the machine body.

[0014] According to yet another aspect of the present disclosure, there is provided a cleaning system, comprising:

[0015] the cleaning device as described above;

[0016] a pile configured to park the cleaning device.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments consistent with the present disclosure and, together with the specification, serve to explain the principles of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0019] FIG. 1 is a schematic view of a cleaning device according to an embodiment of the present disclosure.

[0020] FIG. 2 is a schematic view of a sewage tank according to an embodiment of the present disclosure.

[0021] FIG. 3 is a schematic view of another perspective of the sewage tank according to an embodiment of the present disclosure.

[0022] FIG. 4 is a schematic view of the bottom of the sewage tank according to an embodiment of the present disclosure.

[0023] Figure 5 is a cross-sectional view of a sewage tank according to an embodiment of the present disclosure.

[0024] Figure 6 is a view of a sewage tank without a tank body according to an embodiment of the present disclosure.

[0025] Figure 7 is another view of a sewage tank without a tank body according to an embodiment of the present disclosure.

[0026] Figure 8 is an exploded view of a sewage tank without a tank body according to an embodiment of the present disclosure.

[0027] Figure 9 is a view of a tank body according to an embodiment of the present disclosure.

[0028] Figure 10 is a cross-sectional view of a tank body according to an embodiment of the present disclosure.

[0029] Figure 11 is another cross-sectional view of a sewage tank according to an embodiment of the present disclosure.

[0030] Figure 12 is a view of a filter according to an embodiment of the present disclosure.

[0031] Figure 13 is another view of a filter according to an embodiment of the present disclosure.

[0032] Figure 14 is a view of a first gas-water separation element according to an embodiment of the present disclosure.

[0033] Figure 15 is a view of a second gas-water separation element according to an embodiment of the present disclosure.

[0034] Figure 16 is another view of a second gas-water separation element according to an embodiment of the present disclosure.

[0035] Figure 17 is a view of a cleaning system according to an embodiment of the present disclosure.

[0036] Figure 18 is a view of a cleaning apparatus resting on a pile according to an embodiment of the present disclosure.

[0037] 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 guide pipe; 132121, air pipe main body; 132122, elbow; 132123, first sealing ring; 132124, second sealing ring; 132125, extension portion; 1322, dirty water inlet pipe; 1323, filter piece; 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 piece; 135, second air-water separation piece; 136, grabbing assembly; 137, switch assembly; 200, cleaning base; 20, base station. DETAILED DESCRIPTION

[0038] Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings. Example embodiments, may, however, 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 example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the figures, and descriptions of the same or similar elements can be omitted from the detailed description.

[0039] Although relative terms such as "upper", "lower", etc. are used herein to describe one component's relationship to another component of a figure, such terminology is used herein for convenience only and is not intended to limit the scope of the disclosure to the examples described herein. It is to be understood that if a figure is turned upside down, the component described as being on "top" becomes the component on the "bottom". When a structure is "on" another structure, it can be directly on the other structure or "indirectly" on the other structure via another structure.

[0040] 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.

[0041] 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, and can also 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.

[0042] Hereinafter, the present disclosure will be described in detail by taking the cleaning device 10 as a handheld scrubber.

[0043] 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, which is used 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.

[0044] In which, the cleaning base 200 is hinged to the machine body 100, for example, is pivotally connected, or is connected by a ball joint, 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, so as to facilitate the cleaning operation.

[0045] As shown in FIG. 1, the cleaning machine body 100 is provided with a clean water tank 120 and a dirty water tank 130 on the machine body 110. When the cleaning head on the cleaning base 200 of the cleaning machine is used for mopping the ground, the clean water tank 120 cooperates with the liquid supply assembly to provide cleaning liquid to the cleaning head, so as to mop the ground. The dirty water tank 130 is configured to collect dirty water. The dirty water generated when the ground is mopped and the collected debris are extracted into the dirty water tank 130 by the suction channel through the negative pressure device, and the dirty water, debris and gas are separated in the dirty water tank 130. Therefore, the gas-water separation effect in the dirty water tank 130 is particularly important.

[0046] To this end, the embodiment of the present disclosure provides a dirty water tank. As shown in FIGS. 2-5, the dirty water tank 130 includes a tank body 131 and a separation assembly 132. 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 1313 of the accommodation space 1311, and the bottom of the tank body 131 is provided with a dirty water inlet 1312. At least part of the separation assembly 132 is located in the accommodation space 1311. The separation assembly 132 forms a first air duct 13241, a second air duct 13242 and a third air duct 13243 in the accommodation space 1311. The inlet of the first air duct 13241 communicates with the dirty water inlet 1312. The outlet of the first air duct 13241 is located on one side close to the top and communicates with the inlet of the second air duct 13242. The outlet of the second air duct 13242 is located on one side close to the bottom and communicates with the accommodation space 1311. The inlet of the third air duct 13243 is located on one side close to the bottom and communicates with the accommodation space 1311. The outlet of the third air duct 13243 is located on one side close to the top and is used to connect the negative pressure device of the cleaning equipment 10. The negative pressure device can be a fan, for example.

[0047] The dirty water tank 130 provided by the present disclosure forms the first air duct 13241, the second air duct 13242 and the third air duct 13243 in the accommodation space 1311. The dirty water entering the dirty water tank 130 through the dirty water inlet 1312 passes through the first air duct 13241 and the second air duct 13242. Since the outlet of the first air duct 13241 is located on one 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 one side close to the bottom and communicates with the accommodation space 1311, i.e. the dirty water is extracted upward from the first air duct 13241 through the dirty water inlet 1312, and the dirty water is turned 180° by the first air duct 13241 and the second air duct 13242, so that the dirty water moves downward and falls to the bottom of the dirty water tank 130. The gas is turned upward through the third air duct 13243, so that the moving direction of the dirty water and the gas is reversed by 180°. Therefore, the gas-water separation effect is greatly improved, the amount of water vapor entering the fan is reduced, the safety of the fan is improved, and the service life of the fan is increased.

[0048] In some embodiments, as shown in FIGS. 5-8, 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 air duct portion 13212 is formed with a second air duct 13242, and the air duct portion 13212 cooperates with the side wall of the sewage tank 130 to form a third air duct 13243.

[0049] The separation assembly 132 is assembled with the tank body 131 through the mounting portion 13211 to extend the air duct portion 13212 of the separation assembly 132 into the containing space 1311 through the open end of the tank body 131; the second air duct 13242 is directly formed through the air duct portion 13212, and the third air duct 13343 is formed through the 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 utilizing the cooperation of the original other structures, the third air duct 13243 can have a larger area of the air duct, and thus the smoothness of the third air duct 13243 can be improved, and the gas-water separation effect can be improved.

[0050] In some embodiments, as shown in FIGS. 5-8, the air duct portion 13212 includes a wind guide pipe 132120, and the wind guide pipe 132120 forms the second air duct 13242. The second air duct 13242 is formed through the wind guide pipe 132120, which reduces the volume of the second air duct 13242 in the containing space 1311, and can improve the drainage effect of the sewage.

[0051] As shown in FIGS. 5-8, the wind guide pipe 132120 includes a wind pipe body 132121 and an elbow 132122, the outlet of the elbow 132122 is sealingly connected with the wind 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 wind 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 wind pipe body 132121, and thus the sewage entering the first air duct 13241 is turned by 180° through the second air duct 13242.

[0052] 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.

[0053] The extension portions 132125 on both sides of the air guide pipe 132120 of the separation support 1321 are 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 extension portions 132125 on both sides and the side wall 1315 of the box body 131. Rubber sealing members can be arranged between the extension portions 132125 on both sides and the side wall 1315 of the box body 131, so as to improve the sealing effect between the extension portions 132125 and the side wall 1315.

[0054] In some embodiments, as shown in FIG. 5, 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.

[0055] When the air guide pipe 132120 includes the wind pipe body 132121 and the elbow 132122, the elbow 132122 and the water inlet pipe can be connected together through insertion. By arranging 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 taking out the separation support 1321 from the box body 131.

[0056] As shown in FIG. 5, when the elbow 132122 is inserted into 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 acts as a driving part when it is inserted into the water inlet pipe, the inlet of the elbow 132122 is designed to be larger to facilitate the assembly of the elbow 132122 on the water inlet pipe, thereby facilitating the assembly of the separation bracket 1321 on the box body 131.

[0057] As shown in FIG. 5, when the elbow 132122 is inserted into 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 acts as a driving part when it is inserted into the water inlet pipe, the inlet of the elbow 132122 is designed to be larger to facilitate the assembly of the elbow 132122 on the water inlet pipe, thereby facilitating the assembly of the separation bracket 1321 on the box body 131.

[0058] As shown in FIG. 5, when the elbow 132122 is inserted into 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 acts as a driving part when it is inserted into the water inlet pipe, the inlet of the elbow 132122 is designed to be larger to facilitate the assembly of the elbow 132122 on the water inlet pipe, thereby facilitating the assembly of the separation bracket 1321 on the box body 131.

[0059] As shown in FIG. 5, when the elbow 132122 is inserted into 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 acts as a driving part when it is inserted into the water inlet pipe, the inlet of the elbow 132122 is designed to be larger to facilitate the assembly of the elbow 132122 on the water inlet pipe, thereby facilitating the assembly of the separation bracket 1321 on the box body 131.

[0060] As shown in FIG. 5, when the elbow 132122 is inserted into 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 acts as a driving part when it is inserted into the water inlet pipe, the inlet of the elbow 132122 is designed to be larger to facilitate the assembly of the elbow 132122 on the water inlet pipe, thereby facilitating the assembly of the separation bracket 1321 on the box body 131.

[0061] In some embodiments, as shown in FIGS. 9 and 10, the box 131 includes a bottom plate 1314 and a side wall 1315, the bottom plate 1314 and the side wall 1315 enclosing a containing space, and the sewage inlet 1312 is arranged on the bottom plate 1314.

[0062] In some embodiments, as shown in FIGS. 9 and 10, the box 131 includes a bottom plate 1314 and a side wall 1315, the bottom plate 1314 and the side wall 1315 enclosing a containing space, and the sewage inlet 1312 is arranged on the bottom plate 1314. When the sewage in the sewage tank 130 is full, the sewage accumulated in the box 131 needs to be poured out through the open end 1313. Since the sewage inlet 1312 of the box 131 is fixedly connected with the sewage inlet pipe 1322, when the sewage is poured out from the rear side of the box 131, the sewage may flow back from the sewage suction inlet, causing the sewage to flow out from the sewage inlet 1312 at the bottom of the box 131, which may soil the user's clothes and shoes and seriously affect the user's experience. By tilting the outlet of the sewage inlet pipe 1322 towards the opposite side wall of the sewage tank 130, the outlet of the sewage inlet pipe 1322 can be kept above the liquid level, avoiding the sewage from flowing out from the sewage inlet 1312 at the bottom of the box 131, and improving the user's experience.

[0063] In some embodiments, as shown in FIG. 10, 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, i.e., the angle ∠A by which the outlet is tilted towards the opposite side wall of the sewage tank 130, can be 20°-60°, so that the outlet of the sewage inlet pipe 1322 can be kept above the liquid level, while not affecting the smoothness of the air duct formed after the sewage inlet pipe 1322 is connected with the elbow 132122. For example, the angle ∠A can be 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, etc. The present disclosure does not list all the angles here. Of course, the angle ∠A can also be less than 20° or greater than 60°, which is not limited by the present disclosure.

[0064] In some embodiments, the sewage inlet pipe 1322 and the box 131 can be integrally formed to improve the structural strength of the sewage inlet pipe 1322 and thus improve the sealing performance when the sewage inlet pipe 1322 is inserted into the elbow 132122. Of course, the sewage inlet pipe 1322 and the box 131 can also be separately formed and connected together by, for example, adhesion, welding, threaded connection, clamping, etc., which is not limited by the present disclosure.

[0065] In some embodiments, the sewage tank 130 is provided with a grabbing assembly 136, which is arranged on the side wall of the box 131 opposite to the sewage inlet pipe 1322. The grabbing assembly 136 facilitates lifting the box 131 to pour out the sewage from the rear side of the box 131.

[0066] The grabbing assembly 136 can include a grabbing plate connected to the box body 131 through an elastic member. When the grabbing plate is not grabbed, the grabbing plate is in an original position through 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 box body 131, so as to avoid that the grabbing plate is easily hung with foreign matters and improve the appearance of the sewage tank 130. When the user lifts the sewage tank 130 through the grabbing plate, the bottom of the grabbing plate can be rotated towards the outside of the box body 131, so as 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 through the elastic restoring force of the elastic member.

[0067] In some embodiments, as shown in FIGS. 9 and 10, in the width direction X of the box body 131, the sewage inlet pipe 1322 is arranged close to the side wall of the side of the sewage tank 130. At least part of the pipe body of the sewage inlet pipe 1322 extending from the sewage inlet 1312 towards the outlet side of the sewage inlet pipe 1322 has a containing space 1311 only between the side wall of the other side of the sewage tank 130.

[0068] By arranging at least part of the pipe body of the sewage inlet pipe 1322 extending from the sewage inlet 1312 towards the outlet side of the sewage inlet pipe 1322 to have the containing space 1311 only between the side wall of the other side of the sewage tank 130, one side of at least part of the pipe body of the sewage inlet pipe 1322 extending from the sewage inlet 1312 towards the outlet side of the sewage inlet pipe 1322 is not provided with the containing space 1311, so as to avoid that foreign matters are stuck in the narrow space and cannot be taken out, thereby avoiding that the user manually removes the foreign matters and improving the user experience.

[0069] In some embodiments, as shown in FIGS. 9 and 10, in the width direction X of the box body 131, the sewage inlet pipe 1322 is arranged close to the side wall of the side of the sewage tank 130. At least part of the pipe body of the sewage inlet pipe 1322 extending from the sewage inlet 1312 towards the outlet side of the sewage inlet pipe 1322 has a containing space 1311 only between the side wall of the other side of the sewage tank 130.

[0070] In some embodiments, as shown in FIGS. 11-13, the separating assembly 132 further includes 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. The filter 1323 is provided with a avoiding gap 13234, and the sewage inlet pipe 1322 is located in the avoiding gap 13234.

[0071] The filter 1323 is arranged to filter the solid impurities in the sewage, so that the impurities in the sewage are filtered out, avoiding that the impurities block the sewage outlet in the user's use scenario when the sewage is poured. The filter 1323 is arranged with a gap 13234, which cooperates with the sewage inlet pipe 1322 to form a filter for solid impurities, avoiding that the impurities are missed to the second containing space 13112 below the filter 1323.

[0072] The filter 1323 is connected with the separation support 1321, and the filter 1323 can be taken out together with the separation support 1321, so as to pour out the filtered impurities.

[0073] The filter 1323 is connected with the separation support 1321 through the connecting rod 13235. The connecting rod 13235 is detachably connected with the separation support 1321, for example, the connecting rod 13235 is detachably connected with the separation support 1321 through thread connection, clamping or other ways. Of course, the connecting rod 13235 and the separation support 1321 can also be fixedly connected through bonding, welding or other ways, which is not limited in the present disclosure.

[0074] In some embodiments, as shown in FIGS. 11-13, the filter 1323 includes a first filter part 13231 corresponding to the second air duct 13242 and a second filter part 13232 corresponding to the third air duct 13243. The first filter part 13231 is arranged closer to the bottom of the box body 131 than the second filter part 13232 in the height direction Z. By arranging the first filter part 13231 closer to the bottom of the box body 131 than the second filter part 13232, more solid impurities can be accommodated on the filter 1323.

[0075] The inner wall of the box body 131 is provided with a baffle 1316, which cooperates with the first filter part 13231, the second filter part 13232 and the sewage inlet pipe 1322 to completely shield the box body 131 in the cross section, so that the sewage can only enter the second containing space 13112 below through the filter holes on the filter part, improving the filtering effect of the solid impurities.

[0076] The part of the filter 1323 in contact with the inner wall of the box body 131 can also be provided with a third sealing ring to reduce the gap at the contact position of the filter 1323 and the inner wall of the box body 131, and improve the filtering capacity. At the same time, the third sealing ring can be used to scrape off the dirt on the inner wall of the box body 131 when the filter 1323 is taken out, so as to improve the cleanliness of the box body 131.

[0077] In some embodiments, as shown in FIGS. 12 and 13, the first filtering part 13231 is in a flat plate shape. By making the first filtering part 13231 in a flat plate shape, i.e. the side of the first filtering part 13231 close to the inlet pipe 1322 is not blocked, the filtering part is in a semi-open structure, and the debris accumulated on the filtering part is easier to pour out from the filtering piece 1323. Of course, the first filtering part 13231 can also be in a cylindrical structure, which is not limited in the present disclosure.

[0078] As shown in FIGS. 12 and 13, the two sides of the first filtering part 13231 can be provided with side baffles 13233 to cooperate with the flat plate-shaped first filtering part 13231 to form a shovel-shaped structure to better accommodate the accumulated debris.

[0079] In some embodiments, as shown in FIG. 14, the separation assembly 132 further comprises a first gas-water separation piece 134, which is arranged in the third air duct 13243. By arranging the first gas-water separation piece 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 effect of gas-water separation.

[0080] As shown in FIG. 14, the first gas-water separation piece 134 is provided with a plurality of filtering micropores arranged in a row, the gas can pass through the micropores, and the water component of the gas can be blocked by the micropores to form effective separation of the gas-water.

[0081] The first gas-water separation piece 134 is detachably connected with the separation support 1321. For example, the first gas-water separation piece 134 can be detachably connected with the separation support 1321 through a threaded member or in a clamping manner, so as to facilitate the assembly and maintenance of the first gas-water separation piece 134.

[0082] The first gas-water separation piece 134 can be arranged obliquely in the third air duct 13243 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.

[0083] In some embodiments, as shown in FIGS. 15 and 16, the separation assembly 132 further comprises 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, thereby improving the gas-water separation effect; when the second gas-water separation piece 135 is, for example, a HEPA (High efficiency particulate air Filter) filter screen, the service life of the second gas-water separation piece 135 can be increased.

[0084] The second air-water separation component 135 is detachably connected to the cover plate. For example, the second air-water separation component 135 is detachably connected to the cover plate by clamping or by a threaded connection, so as to facilitate the installation, removal and maintenance of the second air-water separation component 135.

[0085] The second air-water separation component 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 air-water separation component 135 and improve the air-water separation capacity.

[0086] The embodiments of the present disclosure also provide a cleaning system, as shown in FIGS. 17 and 18, which comprises the base station 20 and the cleaning device 10 provided by the above-mentioned 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-mentioned cleaning device embodiments, which will not be repeated here.

[0087] In an exemplary embodiment of the present disclosure, the separation assembly comprises:

[0088] The separation bracket comprises a mounting portion and an air duct portion. The separation bracket is assembled to the open end of the sewage tank through the mounting portion. The air duct portion is provided with the second air duct. The air duct portion cooperates with the side wall of the sewage tank to form the third air duct.

[0089] In an exemplary embodiment of the present disclosure, the air duct portion comprises an air guide pipe. The air guide pipe forms the second air duct.

[0090] In an exemplary embodiment of the present disclosure, the air guide pipe comprises a main air pipe and an elbow. The outlet of the elbow is sealingly connected to the main air pipe. The inlet of the elbow is in communication with the outlet of the first air duct.

[0091] In an exemplary embodiment of the present disclosure, the separation assembly further comprises:

[0092] The sewage inlet pipe is provided with the first air duct. The inlet of the sewage inlet pipe is connected to the sewage inlet on the tank body. The inlet of the air guide pipe is sealingly inserted into the outlet of the sewage inlet pipe.

[0093] 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 of the sewage tank on one side. The outlet of the sewage inlet pipe is obliquely arranged towards the side wall on the other side of the sewage tank.

[0094] 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.

[0095] 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.

[0096] In an exemplary embodiment of the present disclosure, the separation assembly further comprises:

[0097] A filter 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, and the filter is provided with a relief gap, and the sewage inlet pipe is located in the relief gap.

[0098] In an exemplary embodiment of the present disclosure, the filter comprises a first filter part corresponding to the second air duct and a second filter part corresponding to the third air duct, and in the height direction, the first filter part is arranged close to the bottom of the box relative to the second filter part.

[0099] In an exemplary embodiment of the present disclosure, the first filter part is in the form of a flat plate.

[0100] In an exemplary embodiment of the present disclosure, the filter is connected with the separation support.

[0101] In an exemplary embodiment of the present disclosure, the filter is detachably connected with the separation support.

[0102] In an exemplary embodiment of the present disclosure, the separation assembly further comprises:

[0103] A first gas-water separation part is arranged in the third air duct.

[0104] In an exemplary embodiment of the present disclosure, the first gas-water separation part is detachably connected with the separation support.

[0105] In an exemplary embodiment of the present disclosure, the separation assembly further comprises:

[0106] A second gas-water separation part is arranged at the outlet of the third air duct.

[0107] In an exemplary embodiment of the present disclosure, the sewage tank further comprises:

[0108] An upper cover is fixedly connected with the mounting portion, and the second gas-water separation element is detachably connected with the upper cover.

[0109] In an exemplary embodiment of the present disclosure, in the height direction, the outlet of the second air duct is in line with the inlet of the third air duct in height.

[0110] The sewage tank provided by the present disclosure forms a first air duct, a second air duct and a third air duct in the containing space through the separation assembly; sewage entering the sewage tank through the sewage inlet, after passing through the first air duct and the second air duct, due to the fact that the outlet of the first air duct is located on the side close to the top and is in communication with the inlet of the second air duct, and the outlet of the second air duct is located on the side close to the bottom and is in communication with the containing space, i.e. after the sewage is extracted upward from the first air duct through the sewage inlet, the sewage realizes 180° turning through the first air duct and the second air duct, so that the sewage moves downward and falls to the bottom of the sewage tank; the gas is turned upward through the third air duct, so that the moving direction of the sewage and the gas is reversed by 180°, thus greatly improving the gas-water separation effect, reducing the amount of water vapor entering the negative pressure device, improving the safety of the negative pressure device, and increasing the service life of the negative pressure device.

[0111] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the content of the present disclosure. This application is intended to cover any variations, uses or adaptive changes of the present disclosure that follow the general principles of the present disclosure and include known or customary practices in the art of the present disclosure not specifically disclosed. The specification and examples are only regarded as illustrative, and the true scope and spirit of the present disclosure are indicated by the appended claims.

[0112] It should be understood that the present disclosure is not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A sump tank for a cleaning apparatus, wherein, The utility model relates to a sewage cleaning device, comprising: a box body forming a containing space; a top of the box body along a height direction is provided with an open end of the containing space, and a bottom of the box body is provided with a sewage inlet; a separation assembly, at least part of the separation assembly is located in the containing space, the separation assembly forms a first air duct, a second air duct and a third air duct in the containing space, 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 is 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 is communicated with the containing space; an inlet of the third air duct is located on one side close to the bottom and is communicated with the containing space, and an outlet of the third air duct is located on one side close to the top and is used for connecting a negative pressure device of the cleaning device.

2. The sump tank of claim 1, wherein, The separation assembly comprises: 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, the air duct portion is formed with the second air duct, and the air duct portion and the side wall of the sewage tank are matched to form the third air duct.

3. The sump tank of claim 2, wherein, The air duct portion comprises a wind guide pipe, and the wind guide pipe forms the second air duct.

4. The sump tank of claim 3, wherein, The wind guide pipe comprises a wind pipe body and an elbow, an outlet of the elbow is sealingly connected with the wind pipe body, and an inlet of the elbow is communicated with the outlet of the first air duct.

5. The sump tank of claim 3, wherein, The separation assembly further comprises: a sewage inlet pipe, the sewage inlet pipe forms the first air duct, an inlet of the sewage inlet pipe is connected with the sewage inlet on the box body, and an inlet of the wind guide pipe is sealingly inserted into an outlet of the sewage inlet pipe.

6. The sump tank of claim 5, wherein, In the width direction of the box body, the sewage inlet pipe is arranged close to the side wall of the sewage tank on one side, and the outlet of the sewage inlet pipe is obliquely arranged towards the side wall on the other side of the sewage tank.

7. The sump tank of claim 5, wherein, In the width direction of the box body, the sewage inlet pipe is arranged close to the side wall of the sewage tank on one 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 only has the containing space between the side wall on the other side of the sewage tank.

8. The sump tank of claim 7, wherein, 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 body.

9. The sump tank of claim 5, wherein, The separation assembly further comprises: a filter, the filter 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 is provided with a avoiding gap, and the sewage inlet pipe is located in the avoiding gap.

10. The sump tank of claim 9, wherein, The filter comprises a first filter portion corresponding to the second air duct and a second filter portion corresponding to the third air duct, and in the height direction, the first filter portion is arranged close to the bottom of the box body relative to the second filter portion.

11. The sump tank of claim 10, wherein, The first filter portion is in a flat plate shape.

12. The sump tank of claim 9, wherein, The filter is connected with the separation support.

13. The sump tank of claim 12, wherein, The filter is detachably connected with the separation support.

14. The sump tank of claim 2, wherein, The separation assembly further comprises: a first gas-water separation element, the first gas-water separation element is arranged in the third air duct.

15. The sump tank of claim 14, wherein, The first gas-water separation element is detachably connected with the separation support.

16. The sump tank of claim 2, wherein, The separation assembly further comprises: A second air-water separation element is arranged at the outlet of the third air duct.

17. The sump tank of claim 16, wherein, The sewage tank further comprises: An upper cover is fixedly connected with the mounting portion, and the second air-water separation element is detachably connected with the upper cover.

18. The sump tank of claim 1, wherein, In the height direction, the outlet of the second air duct is in line with the inlet of the third air duct in height.

19. A cleaning apparatus wherein, Comprise: A machine body and a cleaning base connected to one end of the machine body; The sewage tank according to any one of claims 1-18 is detachably connected to the machine body.

20. A cleaning system wherein, Comprise: The cleaning device according to claim 19; A pile body configured to park the cleaning device.

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