Wastewater tank and cleaning device

Abstract

The present invention provides a wastewater tank and cleaning device. The wastewater tank is used for a cleaning device and comprises a tank body (100) and a partition bracket (200); the tank body (100) being provided with an accommodating chamber having an air inlet (103) and an air outlet (104); the partition bracket (200) being arranged in the accommodating chamber and separating the accommodating chamber into a first chamber (101) and a second chamber (102), the partition bracket (200) being provided with a blocking structure (220) extending to an inner side wall of the accommodating chamber, so as to separate the second chamber (102) into a wastewater chamber (1021) in communication with the air inlet (103) and an airflow chamber (1022) in communication with the air outlet (104), the blocking structure (220) and the inner side wall of the accommodating chamber surrounding the air inlet (103); wherein the blocking structure (220) is provided with an airflow opening (105) connecting the wastewater chamber (1021) and the airflow chamber (1022).

Description

[0001] The present invention relates to the technical field of cleaning devices, and in particular to a wastewater tank and a cleaning device.

[0002] As technology progresses, floor washers have become a common cleaning device in households.

[0003] An existing floor washer is composed of components such as a cleaning assembly and a wastewater recovery system. The wastewater recovery system comprises a wastewater tank. During use, the floor washer generates an airflow through a vacuum cleaner unit to suck wastewater and solid waste into the wastewater tank, and to achieve the separation of wastewater, solid waste and airflow. The wastewater tank generally comprises a first chamber located below and a second chamber located above the first chamber. Wastewater and solid waste are first entrained by airflow to enter the second chamber. After air-water separation, wastewater flows into the first chamber, while air enters the vacuum cleaner unit from the second chamber.

[0004] However, airflow entering the vacuum cleaner unit may still carry a large amount of moisture, which affects the service life of the vacuum cleaner unit.

[0005] The present invention provides a wastewater tank and a cleaning device, so as to solve the problem that a vacuum cleaner unit of the cleaning device can be easily damaged in prior art.

[0006] In a first aspect, the present invention provides a wastewater tank for a cleaning device, the wastewater tank comprising a tank body assembly and a partition bracket; the tank body assembly comprises a tank body provided with an accommodating chamber having an air inlet and an air outlet; the partition bracket being arranged in the accommodating chamber and separating the accommodating chamber into a first chamber and a second chamber, the partition bracket being provided with a blocking structure extending to an inner side wall of the accommodating chamber, so as to separate the second chamber into a wastewater chamber in communication with the air inlet and an airflow chamber in communication with the air outlet, the blocking structure and the inner side wall of the accommodating chamber surrounding the air inlet; wherein the blocking structure is provided with an airflow opening connecting the wastewater chamber and the airflow chamber.

[0007] In the technical solution of the present invention, accommodating chamber being separated into the first chamber and the second chamber through the partition bracket arranged in the wastewater tank, and then the second chamber is separated into a wastewater chamber and an airflow chamber by the blocking structure on the partition bracket, so that the airflow carrying wastewater and debris undergoes a more thorough water-air separation in the wastewater chamber before entering the airflow chamber and being discharged from the air outlet in communication with the airflow chamber, thereby reducing the water content of airflow entering the vacuum cleaner unit.

[0008] In some embodiments, the blocking structure comprises an enclosure portion and an extending portion, the enclosure portion and the inner side wall of the accommodating chamber surrounding the air inlet in the circumferential direction of the air inlet, the extending portion being connected to the enclosure portion and extending to a side wall of the accommodating chamber, the airflow opening being arranged at the extending portion.

[0009] In this way, the enclosure portion may surround at least part of the air inlet in the circumferential direction of the air inlet, thereby increasing the complexity of the airflow path and thus reducing the moisture content in airflow entering the airflow chamber. With the extending portion connected to the enclosure portion and extending to the side wall of the accommodating chamber, wastewater flowing along an inner wall of the tank body is effectively blocked, making it difficult for the wastewater to enter the airflow chamber by passing over the extending portion.

[0010] In some embodiments, the wastewater tank further comprises a sealing member arranged between an edge of the partition bracket and an inner wall of the accommodating chamber, so as to reduce the probability of water vapor flowing through a gap between the partition bracket and an inner wall of the tank body.

[0011] In some embodiments, the extending portion comprises a mounting portion extending along the height direction of the tank body, and the sealing member comprises a first sealing member arranged at an outer edge of the mounting portion and abutting against the inner wall of the accommodating chamber.

[0012] With such arrangement, the mounting portion ensures that the first sealing member abuts against the inner wall of the accommodating chamber and ensures the tightness of the abutment between the first sealing member and the inner wall of the tank body, so that wastewater cannot easily flow out from a gap between the first sealing member and the inner wall of the tank body, thereby effectively blocking the wastewater flowing along the inner wall of the tank body.

[0013] In some embodiments, an outer edge of the mounting portion is provided with a mounting slot in which the first sealing member is arranged.

[0014] Such arrangement may increase the stability of fixing of the first sealing member.

[0015] In some embodiments, the partition bracket further comprises a top plate located above the blocking structure and provided with an air flow-through port connecting the airflow chamber and the air outlet.

[0016] Such arrangement facilitates the mounting of the partition bracket and the tank body.

[0017] In some embodiments, a top end of the enclosure portion is connected to a bottom part of the top plate, and the extending portion further comprises a first water retaining rib, an upper edge of the first water retaining rib being connected to the top plate, a first end of the first water retaining rib being connected to the enclosure portion, a second end of the first water retaining rib being connected to the mounting portion.

[0018] Such arrangement can effectively block wastewater flowing along a lower surface of the top plate and thereby reducing the probability of wastewater entering the air outlet.

[0019] In some embodiments, the partition bracket further comprises a bottom plate located below the blocking structure and separating the accommodating chamber into the first chamber and the second chamber, the bottom plate being provided with a wastewater flow-through port, the mounting portion extending from the bottom plate to the top plate.

[0020] Such arrangement enables the mounting portion to provide support for the first sealing member on the entire height of the tank body, thereby ensuring the mounting tightness and sealing effect of the first sealing member.

[0021] In some embodiments, the sealing member further comprises a second sealing member circumferentially arranged at the outer side of the top plate and a third sealing member circumferentially arranged at the outer side of the bottom plate; a first end of the first sealing member extending to a lower surface of the second sealing member; the second sealing member being used to seal a gap between the top plate and an inner wall of the tank body; and / or, a second end of the first sealing member extending to an upper surface of the third sealing member, and the third sealing member being used to seal a gap between the bottom plate and an inner wall of the tank body.

[0022] In some embodiments, the first sealing member, the second sealing member, and the third sealing member are integrally formed.

[0023] On one hand, such arrangement improves the integrity of the parts, so that the three separately arranged sealing members are integrated into one integral sealing structure, thereby improving the assembly efficiency. On the other hand, the integral structure of the first sealing member, the second sealing member, and the third sealing member can also prevent any mounting gap from being formed between two connected sealing members. Thus, the sealing effect of the sealing members can be further improved.

[0024] In some embodiments, the extending portion further comprises a second water retaining rib arranged on an outer wall of the enclosure portion and extending along the height direction of the enclosure portion, the airflow opening being formed between the second water retaining rib and the mounting portion.

[0025] In such structure, the second water retaining rib can block water attached to the outer surface of the enclosure portion, so that it cannot flow into the airflow chamber along the outer surface of the enclosure portion, thereby further reducing the water content of air entering the airflow chamber and thus further reducing the probability of water vapor entering the vacuum cleaner unit.

[0026] In some embodiments, the extending portion further comprises a reinforcing structure connecting two opposite sides of the airflow opening. The reinforcing structure can further improve the connection stability of the mounting portion.

[0027] In some embodiments, the tank body comprises an outer tube, an inner tube arranged in the outer tube, and a tank cover arranged on top of the outer tube, the outer tube and the tank cover together forming the accommodating chamber, a first end of the inner tube extending to the bottom of the outer tube and communicating with the outside, a second end of the inner tube passing through the bottom plate of the partition bracket and extending to the second chamber; an end opening of the second end of the inner tube forming the air inlet of the tank body, and the air outlet being arranged on the tank cover.

[0028] In the above structure, the airflow can carry solid waste and wastewater into the second chamber. After air-water separation, the airflow can be discharged from the air outlet. The solid waste and wastewater are temporarily stored in the second chamber first, before entering the first chamber through the wastewater flow-through port for collection.

[0029] In some embodiments, the enclosure portion comprises a first baffle connected to at least one of the bottom plate and the top plate and arranged at a side of the inner tube away from the wastewater flow-through port.

[0030] With such arrangement, when airflow enters the second chamber from the air inlet, airflow flowing upwards from the air inlet will be blocked by the top plate of the partition bracket, and airflow flowing around the air inlet will be blocked by the first baffle or the inner wall of the tank body. After airflow hits these components, the wastewater and solid waste are blocked and their kinetic energy is reduced, so that they will fall under the effect of gravity, thereby achieving the separation from air.

[0031] In some embodiments, the enclosure portion further comprises two second baffles spaced apart from each other, with the first baffle connecting the two second baffles, the first baffle and the two second baffles together surrounding the inner tube.

[0032] In some embodiments, the enclosure portion connects the top plate to the bottom plate.

[0033] With such arrangement, the length and complexity of the airflow channel are both increased, so as to achieve a better air-water separation effect.

[0034] In a second aspect, the present invention provides a cleaning device, comprising: a cleaning assembly, a connecting stick and the above-mentioned wastewater tank, the cleaning assembly and the wastewater tank being both connected to the connecting stick, and the cleaning assembly and the air inlet of the wastewater tank being in communication. Since the wastewater tank of the present invention has the advantage of prolonging the service life of a vacuum cleaner unit, the cleaning device comprising it also has this advantage.

[0035] In the technical solution of the present embodiment, the wastewater tank comprises a tank body assembly and a partition bracket arranged in the tank body assembly, and a blocking structure being provided on the partition bracket. The blocking structure separates the second chamber into a wastewater chamber and an airflow chamber. The air inlet and the wastewater flow-through port are both connected to the wastewater chamber. The wastewater chamber serves as the main place for separating airflow and wastewater. The air outlet is in communication with the airflow chamber. Airflow first undergoes air-water separation in the wastewater chamber before entering the airflow chamber and finally being discharged from the air outlet.

[0036] Specifically, the blocking structure can partially surround the air inlet, and can extend from the partition bracket to the inner side wall of the accommodating chamber. The blocking structure can block the airflow entering from the air inlet. After the airflow carrying wastewater and solid waste hits the blocking structure, the wastewater and solid waste will stop moving and fall under the effect of gravity, thereby achieving the separation from airflow. Wastewater and solid waste can then flow into the first chamber and gather therein, while airflow continues to flow to the airflow chamber and is finally discharged from the air outlet, so that the airflow carrying wastewater undergoes a more thorough air-water separation in the wastewater chamber. In addition, since the blocking structure extends to the inner side wall of the accommodating chamber and the airflow opening connecting the wastewater chamber and the airflow chamber is arranged on the blocking structure, the probability of water vapor flowing through the gap between the partition bracket and the tank body is reduced, so as to prevent water attaching to the inner wall of the tank body from entering the airflow chamber, thereby further reducing the moisture content of airflow entering the airflow chamber and thus further reducing the probability of water vapor entering a vacuum cleaner unit.

[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the specification, serve to explain the principles of the present invention. Fig. 1 is a sectional view of a wastewater tank provided by an embodiment of the present invention; Fig. 2 is an enlarged schematic view of the structure of part A of the wastewater tank of Fig. 1; Fig. 3 is a view in perspective of the internal structure of a wastewater tank provided by an embodiment of the present invention; Fig. 4 is an enlarged schematic view of the structure of part B of the wastewater tank of Fig. 3; Fig. 5 is a view in perspective of a partition bracket provided by an embodiment of the present invention; Fig. 6 is a schematic view in perspective of a blocking structure provided by an embodiment of the present invention. Description of references:

[0038] 10: wastewater tank; 100: tank body; 101: first chamber; 102: second chamber; 1021: wastewater chamber; 1022: airflow chamber; 103: air inlet; 104: air outlet; 105: airflow opening; 111: outer tube; 112: inner tube; 113: tank cover; 200: partition bracket; 210: bottom plate; 211: first bottom plate portion; 2111: wastewater flow-through port; 212: second bottom plate portion; 2121: air pressure balancing opening; 220: blocking structure; 221: enclosure portion; 2211: first baffle; 2212: second baffle; 222: extending portion; 2221: mounting portion; 2221 a: mounting slot; 2222: first water retaining rib; 2223: second water retaining rib; 2224: reinforcing structure; 230: top plate; 231: first top plate portion; 232: second top plate portion; 2321: air flow-through port; 300: sealing member; 310: first sealing member; 320: second sealing member; 330: third sealing member.

[0039] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and fully described in detail below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0040] In the prior art, when a floor washer is cleaning a floor, airflow generated by a vacuum cleaner unit will suck wastewater and solid waste into a wastewater tank, where wastewater and solid waste are separated.

[0041] Specifically, a partition bracket is generally provided in the wastewater tank and divides the wastewater tank into a first chamber and a second chamber. The first chamber is located at the bottom of the wastewater tank and is used to collect wastewater. The second chamber is located above the first chamber and is used to separate airflow from wastewater and solid waste. The second chamber communicates with the first chamber through a wastewater flow-through port. An anti-backflow structure is generally provided at the wastewater flow-through port to prevent wastewater in the wastewater chamber from flowing back into the second chamber. The top of the second chamber communicates with the air outlet of the wastewater tank. When the floor washer is operating, airflow carries wastewater and solid waste into the second chamber. Wastewater flows into the first chamber through the wastewater flow-through port. Solid waste remains in the second chamber, while airflow is discharged from the air outlet at the top of the second chamber, so as to separate liquid, solid and air.

[0042] However, in existing floor washers, airflow entering the vacuum cleaner unit still carries a large amount of moisture. Through research, the inventors have found that there is a gap between the partition bracket and the inner wall of the wastewater tank. This gap increases the flow-through area between the first chamber and the second chamber. When the wastewater tank operates under negative pressure airflow, moisture will enter the second chamber from the gap, thereby increasing the moisture content of airflow entering the vacuum cleaner unit.

[0043] To solve the above problem, the present invention provides a wastewater tank for a cleaning device, wherein, a partition bracket is provided in the wastewater tank for separating the accommodating chamber into a first chamber and a second chamber, and the second chamber is further separated by a blocking structure on the partition bracket into a wastewater chamber and an airflow chamber, so that airflow carrying wastewater and debris is more thoroughly separated from water in the wastewater chamber before entering the airflow chamber and being discharged from an air outlet in communication with the airflow chamber, thereby reducing the water content of airflow entering the vacuum cleaner unit.

[0044] The wastewater tank provided by an embodiment of the present invention is described below in conjunction with the accompanying drawings. It should be noted that the wastewater tank provided by the present invention can be used in a cleaning device, which, by way of example, can be a floor washer.

[0045] Fig. 1 is a sectional view of a wastewater tank provided by an embodiment of the present invention; Fig. 2 is an enlarged schematic view of the structure of part A of the wastewater tank of Fig. 1; Fig. 3 is a view in perspective of the internal structure of a wastewater tank provided by an embodiment of the present invention; Fig. 4 is an enlarged schematic view of the structure of part B of the wastewater tank of Fig. 3; Fig. 5 is a view in perspective of a partition bracket provided by an embodiment of the present invention.

[0046] In a first aspect, the present invention provides a wastewater tank for a cleaning device. The wastewater tank comprises a tank body 100 and a partition bracket 200.

[0047] The tank body 100 has an accommodating chamber having an air inlet 103 and an air outlet 104.

[0048] The partition bracket 200 is arranged in the accommodating chamber and separates the accommodating chamber into a first chamber 101 and a second chamber 102. The partition bracket 200 is provided with a blocking structure 220 surrounding at least a part of the air inlet 103 and extending to an inner side wall of the accommodating chamber to separate the second chamber 102 into a wastewater chamber 1021 and an airflow chamber 1022. The wastewater chamber 1021 is in communication with the air inlet 103. The airflow chamber 1022 is in communication with the air outlet 104. The blocking structure 220 is provided with an airflow opening 105 connecting the wastewater chamber 1021 and the airflow chamber 1022 in communication.

[0049] According to the technical solution of the present embodiment, the wastewater tank 10 comprises a tank body 100 and a partition bracket 200 arranged in the tank body 100 and provided with a blocking structure 220. The blocking structure 220 separates the second chamber 102 into a wastewater chamber 1021 and an airflow chamber 1022. The air inlet 103 and the wastewater flow-through port 2111 are both in communication with the wastewater chamber 1021. The wastewater chamber 1021 serves as the main place for separating airflow and wastewater. The air outlet 104 is in communication with the airflow chamber 1022. The airflow first undergoes air-water separation in the wastewater chamber 1021, then enters the airflow chamber 1022 and is finally discharged from the air outlet 104.

[0050] Specifically, the blocking structure 220 can partially shield the air inlet 103 and can extend from the partition bracket 200 to the inner wall of the accommodating chamber. The blocking structure 220 can block the airflow entering from the air inlet 103. After the airflow carrying wastewater and solid waste hits the blocking structure 220, wastewater and solid waste stop moving and fall under the effect of gravity, thereby achieving the separation from airflow. Wastewater and solid waste can flow into the first chamber 101 and gather there, while the airflow continues to circulate to the airflow chamber 1022 and is finally discharged from the air outlet 104, so that the airflow carrying wastewater can undergo a more thorough air-water separation in the wastewater chamber 1021. In addition, since the blocking structure 220 extends to the inner wall of the accommodating chamber, and the airflow opening 105 connecting the wastewater chamber 1021 and the airflow chamber 1022 in communication is arranged on the blocking structure 220, the probability of water vapor flowing through a gap between the partition bracket 200 and the tank body 100 is reduced. Thus, water attaching to the inner wall of the tank body cannot enter the airflow chamber, thereby further reducing the moisture content of airflow entering the airflow chamber and further reducing the probability of water vapor entering the vacuum cleaner unit.

[0051] Through research, the inventors have found that moisture entering the vacuum cleaner unit may come from different sources. First, since it is difficult to completely separate moisture carried by the airflow in the second chamber, airflow carries too much water vapor, when entering the vacuum cleaner unit. Second, since the vacuum cleaner unit provides a negative pressure, airflow is discharged from the air outlet by suction, making it easy for wastewater in the second chamber to flow into the air outlet along the inner wall of the second chamber and thus be further carried by the airflow into the vacuum cleaner unit.

[0052] In view of this, in the present embodiment, the blocking structure 220 comprises an enclosure portion 221 and an extending portion 222. The enclosure portion 221 at least partially surrounds the air inlet 103 in the circumferential direction of the air inlet 103. The extending portion 222 is connected to the enclosure portion 221 and extends to the side wall of the accommodating chamber. The airflow opening 105 is provided in the extending portion 222.

[0053] In the above structure, the enclosure portion 221 can at least partially surround the air inlet 103 in the circumferential direction of the air inlet 103, thereby increasing the complexity of the flow path of the airflow. The enclosure portion 221 can block the airflow entering from the air inlet 103. After the airflow carrying wastewater and solid waste hits the enclosure portion 221, wastewater and solid waste will stop moving and fall under the effect of gravity, thereby achieving the separation from airflow. The airflow may bypass the enclosure portion 221 and enter the airflow chamber through the airflow opening 105 disposed on the extending portion 222. In this process, it continues to hit the enclosure portion 221 and the inner wall of the tank body 100, thereby further reducing the water content in the airflow.

[0054] The extending portion 222 is connected to the enclosure portion 221 and extends to the side wall of the accommodating chamber, which effectively blocks wastewater flowing along the inner wall of the tank body 100 and prevents the wastewater from crossing over the extending part 222 to enter the airflow chamber, so that air entering the airflow chamber has a lower water content and thus the probability of wastewater flowing into the vacuum cleaner unit is reduced, thereby prolonging the service life of the vacuum cleaner unit.

[0055] As shown in Figures 3 to 5, in some embodiments, the wastewater tank further comprises a sealing member 300 arranged between an edge of the partition bracket 200 and an inner wall of the accommodating chamber.

[0056] The sealing member 300 can seal the gap between the partition bracket 200 and the tank body 100, thereby preventing water vapor from entering the airflow chamber from the gap between the partition bracket 200 and the tank body 100 and thus effectively reducing the probability of water vapor entering the vacuum cleaner unit.

[0057] Specifically, as shown in Figs. 3 to 5, in some embodiments, the extending portion 222 comprises a mounting portion 2221 extending along the height direction of the tank body 100. The sealing member 300 comprises a first sealing member 310 arranged at an outer edge of the mounting portion 2221 and abuts against an inner wall of the accommodating chamber.

[0058] In the above structure, the extending portion 222 comprises a mounting portion 2221 extending along the height direction of the tank body 100. The mounting portion 2221 can press the first sealing member 310 to abut against the inner wall of the accommodating chamber. As such, the mounting portion 2221 can ensure the tightness of the abutment between the first sealing member 310 and the inner wall of the tank body 100, so that it is difficult for wastewater to flow out through the gap between the first sealing member 310 and the inner wall of the tank body 100, thereby effectively blocking wastewater flowing along the inner wall of the tank body 100.

[0059] It should be noted that the water blocking effect of the mounting portion 2221 and the first sealing member 310 can be ensured by setting the distance of the mounting portion protruding relative to the inner wall of the tank body 100. By way of example, the distance between the inner surface of the mounting portion 2221 and the inner wall of the tank body 100 can be greater than 3mm, so that it is difficult for water flow attaching to the inner wall of the tank body 100 to cross the mounting portion 2221 to enter the airflow chamber.

[0060] As shown in Figures 3 to 5, in some embodiments, the outer edge of the mounting portion 2221 is provided with a mounting slot 2221a. The first sealing member 310 is arranged in the mounting slot 2221a.

[0061] In the above structure, the mounting slot 2221a can improve the stability of the fixing of the first sealing member 310 and prevent the first sealing member 310 from moving, thereby ensuring the blocking effect of wastewater.

[0062] Specifically, in reference to Fig. 4, the mounting slot 2221a comprises two side walls arranged opposite to each other and a bottom wall arranged between the two side walls. The bottom wall of the slot and the inner wall of the tank body 100 can squeeze the first sealing member 310 to ensure the tightness of the abutment of the first sealing member 310 against the inner wall of the tank body 100. The two side walls of the slot can limit the position of the first sealing member 310 to prevent the first sealing member 310 from moving with airflow, thereby ensuring the mounting stability of the first sealing member 310.

[0063] It should be noted that the first sealing member 310 can be a sealing strip, comprising a sealing body inserted into the mounting slot and a sealing portion provided on the sealing body. By the abutment of the sealing portion against the inner wall of the tank body 100, a better sealing effect is achieved.

[0064] As shown in Figure 2, 3 and 5, in some embodiments, the partition bracket 200 further comprises a top plate 230 located above the blocking structure 220 and provided with an air flow-through port. The air flow-through port connects the airflow chamber 1022 and the air outlet 104 in communication. The top plate 230 may be sandwiched between the tank body 100 and the tank cover 113, so as to mount the partition bracket 200 in the tank body 100.

[0065] As shown in Figures 3 and 5, in some embodiments, a top end of the enclosure portion 221 is connected to the bottom of the top plate 230. The extending portion 222 further comprises a first water retaining rib 2222. An upper edge of the first water retaining rib 2222 is connected to the top plate 230. A first end of the first water retaining rib 2222 is connected to the enclosure portion 221. A second end of the first water retaining rib 2222 is connected to the mounting portion 2221.

[0066] In such structure, with the top end of the enclosure portion 221 connected to the bottom of the top plate 230, when airflow enters the second chamber 102 from the air inlet 103, air flowing upwards from the air inlet 103 will be blocked by the top plate 230 of the partition bracket 200, and air flowing around the air inlet 103 can be blocked by the enclosure portion 221 or the inner wall of the tank body 100. After the airflow hits these components, the kinetic energy of wastewater and solid waste is reduced after being blocked, so that they will fall under the effect of gravity, thereby achieving the separation from air.

[0067] The top end of the enclosure portion 221 is connected to the bottom of the top plate 230. The enclosure portion 221 can block water attached to the top plate 230, so as to reduce the probability of the water flowing into the air flow-through port 2321 along the lower surface of the top plate 230.

[0068] As shown in Figure 5, the first water retaining rib 2222 can further separate the wastewater chamber 1021 from the airflow chamber 1022, so as to further reduce the probability of wastewater entering the airflow chamber 1022 along the lower surface of the top plate 230.

[0069] As shown in Figures 1 to 5, in some embodiments, the partition bracket 200 further comprises a bottom plate 210 located below the blocking structure 220. The bottom plate 210 separates the accommodating chamber into the first chamber 101 and the second chamber 102. The bottom plate 210 is provided with the wastewater flow-through port 2111. The mounting portion 2221 extends from the bottom plate 210 to the top plate 230.

[0070] In such structure, the partition bracket 200 actually separates the accommodating chamber into three chambers. In fact, the bottom plate 210 separates the airflow chamber into the upper first chamber and the lower second chamber. The first chamber communicates with the second chamber through the wastewater flow-through port. The blocking structure 220 of the partition bracket 200 further separates the second chamber into the wastewater chamber 1021 and the airflow chamber 1022. Airflow entering from the air inlet 103 first enters the wastewater chamber 1021, and after air-water separation in the wastewater chamber 1021, is discharged from the airflow chamber 1022. Wastewater and debris remain in the wastewater chamber 1021 and eventually enter the first chamber 101 through the wastewater flow-through port 2111 for storage.

[0071] The mounting portion 2221 extends from the bottom plate 210 to the top plate 230 so that the mounting portion 2221 can provide support for the first sealing member on the entire height of the tank body, thereby ensuring the mounting tightness and sealing effect of the first sealing member.

[0072] As shown in Figure 5, in some embodiments, the sealing member 300 further comprises a second sealing member 320 circumferentially arranged on the outer side of the top plate 230 and a third sealing member 330 circumferentially arranged on the outer side of the bottom plate 210.

[0073] Specifically, the second sealing member 320 is used to seal the gap between the top plate 230 and the inner wall of the tank body 100, and the third sealing member 330 is used to seal the gap between the bottom plate 210 and the inner wall of the tank body 100.

[0074] It should be noted that the top plate 230 of the partition bracket 200 has a clamping portion clamped between the tank body 100 and the tank cover 113 and a main body located in the tank body 100. The second sealing member 320 is arranged on a circumferential edge of the main body of the top plate 230. When the partition bracket 200 is mounted in the tank body 100, the clamping portion of the top plate is located between the tank body 100 and the tank cover 113. Since the main body of the top plate is sleeved with the second sealing member 320, sealing can be formed between the top plate 230 and the inner wall of the tank body 100. Furthermore, since the first end of the first sealing member 310 extends to the lower surface of the second sealing member 320, it is difficult for wastewater to flow into the air flow-through port 2321 along the lower surface of the top plate 230.

[0075] Correspondingly, the third sealing member 330 is arranged on the circumferential edge of the bottom plate 210 and used to seal the gap between the bottom plate 210 and the inner wall of the tank body 100. The second end of the first sealing member 310 extends to the upper surface of the third sealing member 330, thereby making it difficult for wastewater to flow into the airflow chamber along the upper surface of the bottom plate 210, which helps to reduce the moisture content of airflow entering the airflow chamber and thus reduce the probability of wastewater entering the vacuum cleaner unit.

[0076] As shown in Figure 5, in some embodiments, the first sealing member 310, the second sealing member 320, and the third sealing member 330 are integrally formed.

[0077] On one hand, such arrangement improves the integrity of the parts, so that the three separately provided sealing members are integrated into one integral sealing structure, thereby improving the assembly efficiency. On the other hand, the integral structure of the first sealing member 310, the second sealing member 320 and the third sealing member 330 can also prevent any mounting gap from being formed between two connected sealing members. Thus, the sealing effect of the sealing members can be further improved.

[0078] It should be noted that when fabricating the integral structure of the first sealing member 310, the second sealing member 320 and the third sealing member 330, the partition bracket 200 can be placed in a mold, and then the first sealing member 310, the second sealing member 320 and the third sealing member 330 can be integrally formed by injection molding.

[0079] Figure 6 is a schematic view in perspective of the blocking structure provided by an embodiment of the present invention. As shown in Figure 6, in some embodiments, the extending portion 222 further comprises a second water retaining rib 2223 located on the outer wall of the enclosure portion 221 and extending along the height direction of the enclosure portion 221. The airflow opening 105 is formed between the second water retaining rib 2223 and the mounting portion 2221.

[0080] In such structure, the second water retaining rib 2223 can block water attached to the outer surface of the enclosure portion 221, so that it cannot flow into the airflow chamber along the outer surface of the enclosure portion 221, thereby further reducing the water content of air entering the airflow chamber and thus further reducing the probability of water vapor entering the vacuum cleaner unit.

[0081] It should be noted that the first water retaining rib 2222 and the reinforcing structure 2224 can be arranged between the second water retaining rib 2223 and the mounting portion 2221, so as to improve the stability of the fixing of the mounting portion 2221.

[0082] As shown in Figures 3 to 5, in some embodiments, the extending portion 222 further comprises a reinforcing structure 2224 connecting two opposite sides of the airflow opening 105.

[0083] In such structure, the reinforcing structure 2224 can further improve the connection stability of the mounting portion 2221.

[0084] Specifically, the reinforcing structure 2224 can be a reinforcing rib of the enclosure portion 221 and the extending portion 222. There can one or more reinforcing ribs. By way of example, a plurality of reinforcing ribs is arranged in a spaced apart manner in the height direction of the tank body 100.

[0085] It should be noted that the reinforcing structure 2224 will occupy some space of the airflow opening 105 and affect the flow-through area of airflow. Therefore, the reinforcing structure 2224 should not occupy too much space in the airflow channel. By way of example, the flow-through area of the airflow channel is not less than 600 mm to ensure the smoothness of the airflow.

[0086] As shown in Figures 1 to 3, in some embodiments, the tank body 100 comprises an outer tube 111, an inner tube 112 arranged in the outer tube 111 and a tank cover 113 covering the top of the outer tube 111. The outer tube 111 and the tank cover 113 together form the accommodating chamber. A first end of the inner tube 112 extends to the bottom of the outer tube 111 and communicates with the outside. A second end of the inner tube 112 passes through the bottom plate 210 and extends to the second chamber 102. An end opening at the second end of the inner tube 112 forms the air inlet 103 of the tank body 100. The air outlet 104 is arranged on the tank cover 113.

[0087] In such structure, the inner tube 112 is used for circulation of the airflow. The airflow carries solid waste and wastewater into the outer tube 111 for separation in the outer tube 111. Specifically, airflow carries solid waste and wastewater into the second chamber 102 where air and water are separated. After separation, airflow can be discharged from the air outlet 104, while solid waste and wastewater are temporarily stored in the second chamber 102 before entering the first chamber 101 through the wastewater flow-through port for collection.

[0088] As shown in Figures 2 to 5, in some embodiments, the enclosure portion 221 comprises a first baffle 2211 connected to at least one of the bottom plate 210 and the top plate 230 and arranged at a side of the inner tube 112 away from the wastewater flow-through port 2111. In such structure, when airflow enters the second chamber 102 from the air inlet 103, airflow flowing upwards from the air inlet 103 will be blocked by the top plate 230 of the partition bracket 200, and airflow flowing around the air inlet 103 can be blocked by the first baffle 2211 or the inner wall of the tank body 100. After airflow hits these components, the wastewater and solid waste are blocked and their kinetic energy is reduced, so that they will fall under the effect of gravity, thereby achieving the separation from air.

[0089] It should be noted that the first baffle 2211 can be connected to the bottom plate 210 only, or to the top plate 230 only, or to both the bottom plate 210 and the top plate 230. For example, the upper edge of the first baffle 2211 is connected to the top plate 230, and the lower edge of the first baffle 2211 is connected to the bottom plate 210, together achieving a better separation effect.

[0090] In order to further increase the length and complexity of the airflow passage and achieve a better air-water separation effect, as shown in Figures 3 to 5, in some embodiments, the enclosure portion 221 further comprises two second baffles 2212 spaced apart from each other. The first baffle 2211 is connected between the two second baffles 2212. The first baffle 2211 and the two second baffles 2212 together surround the inner tube 112.

[0091] In such structure, the first baffle 2211 and the second baffles 2212 form a "semi-enclosed" structure outside the inner tube 112, and form a full enclosure around the inner tube together with the inner wall of the outer tube. Thus, airflow flowing out of the inner tube 112 will come into full contact with the inner wall of the blocking structure 220 and the outer tube 111, thereby improving the effect of air-water separation. Airflow can flow into the airflow chamber from a gap between the second baffles 2212 and the inner wall of the outer tube 111 and then through the airflow openings 105, thereby effectively reducing the water content of the airflow entering the airflow chamber.

[0092] By way of example, the angle between the second baffles 2212 and the first baffle 2211 can be between 45° and 135°. The present embodiment does not limit the specific angle between the second baffles 2212 and the first baffle 2211.

[0093] In some embodiments, the enclosure portion 221 connects the bottom plate 210 to the top plate 230. By way of example, lower edges of the first baffle 2211 and the second baffles 2212 are all connected to the bottom plate 210. Upper edges of the first baffle 2211 and the second baffles 2212 are all connected to the top plate 230. In this way, airflow cannot enter the airflow chamber from a gap between the enclosure portion 221 and the bottom plate or the top plate, but can only enter the airflow chamber from between the outer side of the second baffle 2212 and the inner wall of the outer tube 111, thereby effectively extending the flow path of airflow, increasing the complexity of the airflow passage, and helping to improve the effectiveness of air-water separation.

[0094] It should be noted that, in some embodiments, the top of the enclosure portion 221 is connected to the top plate 230 and divides the top plate 230 into a first top plate 231 and a second top plate 232. The first top plate 231 separates the air inlet 103 and the air outlet 104. The air flow-through port 2321 is arranged on the second top plate 232.

[0095] In such structure, the connection between the top of the enclosure portion 221 and the top plate 230 can enhance the blocking effect of the enclosure portion 221 on airflow, making it difficult for airflow to enter the airflow chamber along the lower surface of the top plate 230. At the same time, the top plate 230 can also separate the air inlet 103 and the air outlet 104. Airflow entering from the air inlet 103 will not be directly discharged from the air outlet 104, but will have to pass through the airflow opening 105 located on the extension portion 222 before entering the airflow chamber and finally being discharged from the air outlet 104, which effectively reduces the water content of airflow entering the air outlet 104.

[0096] In reference to Figs. 1 to 5, the bottom of the enclosure portion 221 is connected to the bottom plate 210. The enclosure portion 221 divides the bottom plate 210 into a first bottom plate portion 211 and a second bottom plate portion 212. The wastewater flow-through port 2111 is arranged at the first bottom plate portion 211. The second bottom plate portion 212 is provided with an air pressure balancing opening 2121 that connects the first chamber 101 and the second chamber 102 in communication. Specifically, the bottom plate 210 separates the tank body 100 into the first chamber 101 and the second chamber 102. The first chamber 101 serves to collect wastewater and solid waste. A third sealing member 330 is provided at the circumferential outer edge of the bottom plate 210, so that the first chamber 101 and the second chamber 102 communicate with each other only through the wastewater flow-through port 2111 and the air pressure balancing opening 2121.

[0097] Specifically, an anti-backflow structure can be provided at the wastewater flow-through port 2111 to prevent wastewater in the first chamber 101 from flowing back through the wastewater flow-through port 2111 to the second chamber.

[0098] Since the second chamber directly communicates with the air outlet 104, the air pressure in the second chamber can be lower than the air pressure in the first chamber, making it difficult for wastewater to flow smoothly into the first chamber. The air pressure balancing opening 2121 can serve to balance the air pressure in the second chamber and in the first chamber, so that wastewater can flow smoothly from the second chamber to the first chamber.

[0099] It should also be noted that the wastewater tank further comprises a filtering assembly arranged at the air outlet 104 of the tank cover 113 and used to filter airflow to reduce the probability of carrying debris in airflow, so as to ensure the cleanliness of air blown out from the cleaning device. By way of example, the filtering assembly can be an HEPA filter.

[0100] In some embodiments, the wastewater tank further comprises a level detector capable of detecting the level of wastewater in the first chamber 101. When the level exceeds a predetermined position, a signal can be sent to a controller of the cleaning device to stop the rotation of a vacuum cleaner unit, or a signal can be sent to a user to clean the wastewater tank. Such arrangement can further reduce the risk of damage to the vacuum cleaner unit.

[0101] In another aspect, the present invention further provides a cleaning device, comprising a cleaning assembly, a connecting stick and a wastewater tank 10, wherein the wastewater tank 10 is the above-described wastewater tank, the cleaning assembly and the wastewater tank 10 are both connected to the connecting stick, and the cleaning assembly and the air inlet 103 of the wastewater tank are in communication. Since the wastewater tank 10 has the advantage of preventing water from entering the vacuum cleaner unit, the cleaning device equipped with it has the advantages of long service life of the vacuum cleaner unit and good user experience.

[0102] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "mount", "connect" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, or indirect connection through an intermediate medium, or internal communication between two elements or an interaction relationship between two elements. For those skilled in the art, specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0103] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or position relationships based on the drawings, which are only for the convenience of describing the present application and simplifying the description, do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0104] The terms "first", "second", "third", "fourth" (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented, for example, in an order other than those illustrated or described herein.

[0105] In addition, the terms "comprise and "have" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wastewater tank for a cleaning device, characterized in that, the wastewater tank comprises a tank body (100) and a partition bracket (200); the tank body (100) being provided with an accommodating chamber having an air inlet (103) and an air outlet (104); the partition bracket (200) being arranged in the accommodating chamber and separating the accommodating chamber into a first chamber (101) and a second chamber (102), the partition bracket (200) being provided with a blocking structure (220) extending to an inner side wall of the accommodating chamber, so as to separate the second chamber (102) into a wastewater chamber (1021) in communication with the air inlet (103) and an airflow chamber (1022) in communication with the air outlet (104), the blocking structure (220) and the inner side wall of the accommodating chamber surrounding the air inlet (103); wherein the blocking structure (220) is provided with an airflow opening (105) connecting the wastewater chamber (1021) and the airflow chamber (1022).

2. The wastewater tank according to claim 1, characterized in that, the blocking structure (220) comprises an enclosure portion (221) and an extending portion (222), the enclosure portion (221) and the inner side wall of the accommodating chamber surrounding the air inlet (103) in the circumferential direction of the air inlet (103), the extending portion (222) being connected to the enclosure portion (221) and extending to a side wall of the accommodating chamber, the airflow opening (105) being arranged at the extending portion (222).

3. The wastewater tank according to claim 1 or 2, characterized in that, the wastewater tank further comprises a sealing member (300) arranged between an edge of the partition bracket (200) and an inner wall of the accommodating chamber.

4. The wastewater tank according to claim 3, characterized in that, the extending portion (222) comprises a mounting portion (2221) extending along the height direction of the tank body (100), the sealing member (300) comprising a first sealing member (310) arranged at an outer edge of the mounting portion (2221) and abutting against the inner wall of the accommodating chamber.

5. The wastewater tank according to any one of claims 1 to 4, characterized in that, the partition bracket (200) further comprises a top plate (230) located above the blocking structure (220) and provided with an air flow-through port (2321) connecting the airflow chamber (1022) and the air outlet (104).

6. The wastewater tank according to claim 5, characterized in that, a top end of the enclosure portion (221) is connected to the bottom of the top plate (230), and the extending portion (222) further comprises a first water retaining rib (2222), an upper edge of the first water retaining rib being connected to the top plate (230), a first end of the first water retaining rib (2222) being connected to the enclosure portion (221), a second end of the first water retaining rib (2222) being connected to the mounting portion (2221).

7. The wastewater tank according to any one of claims 1 to 6, characterized in that, the partition bracket (200) further comprises a bottom plate (210) located below the blocking structure (220) and separating the accommodating chamber into the first chamber (101) and the second chamber (102), the bottom plate (210) being provided with a wastewater flow-through port (2111).

8. The wastewater tank according to claim 7, characterized in that, the sealing member (300) further comprises a second sealing member (320) circumferentially arranged at the outer side of the top plate (230) and a third sealing member (330) circumferentially arranged at the outer side of the bottom plate (210); a first end of the first sealing member (310) extending to a lower surface of the second sealing member (320); and / or, a second end of the first sealing member (310) extending to an upper surface of the third sealing member (330).

9. The wastewater tank according to claim 8, characterized in that, the first sealing member (310), the second sealing member (320) and the third sealing member (330) are integrally formed.

10. The wastewater tank according to any one of claims 4 to 9, characterized in that, the extending portion (222) further comprises a second water retaining rib (2223) arranged on an outer wall of the enclosure portion (221) and extending along the height direction of the enclosure portion (221), the airflow opening (105) being formed between the second water retaining rib (2223) and the mounting portion (2221).

11. The wastewater tank according to any one of claims 2 to 10, characterized in that, the extending portion (222) further comprises a reinforcing structure (2224) connecting two opposite sides of the airflow opening (105).

12. The wastewater tank according to any one of claims 1 to 10, characterized in that, the tank body (100) comprises an outer tube (111), an inner tube (112) arranged in the outer tube (111), and a tank cover (113) arranged on top of the outer tube (111), the outer tube (111) and the tank cover (113) together forming the accommodating chamber, a first end of the inner tube (112) extending to the bottom of the outer tube (111) and communicating with the outside, a second end of the inner tube (112) passing through the partition bracket (200) and extending to the second chamber (102); an end opening of the second end of the inner tube (112) forming the air inlet (103) of the tank body (100), and the air outlet (104) being arranged on the tank cover (113).

13. The wastewater tank according to any one of claims 2 to 12, characterized in that, the enclosure portion (221) comprises a first baffle (2211) and two second baffles (2212) spaced apart manner from each other, the first baffle (2211) connecting the two second baffles (2212), the first baffle (2211) and the two second baffles (2212) and the inner side wall of the accommodating chamber together surrounding the inner tube (112), the first baffle (2211) being arranged at a side of the inner tube (112) away from the wastewater flow-through port (2111).

14. The wastewater tank according to any one of claims 7 to 13, characterized in that, the enclosure portion (221) connects the top plate (230) to the bottom plate (210).

15. A cleaning device, characterized in that, it comprises: a cleaning assembly, a connecting stick and the wastewater tank according to any one of claims 1 to 14, the cleaning assembly and the wastewater tank being both connected to the connecting stick, and the cleaning assembly and the air inlet (103) of the wastewater tank being in communication.

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