Sewage tank and cleaning device

Abstract

The utility model relates to the field of cleaning devices, in particular to a sewage tank and a cleaning device. The sewage tank comprises a tank body, a separation bracket and a non-return structure, the box body is provided with a containing cavity, the containing cavity is provided with an air inlet and an air outlet, the separation support is arranged in the containing cavity and divides the containing cavity into a first cavity body and a second cavity body, the air inlet and the air outlet are both communicated with the second cavity body, and a sewage overflowing opening communicated with the first cavity body and the second cavity body is formed between the separation support and the box body. The sewage overflowing opening is provided with a first end face facing the first cavity, and the first end face is obliquely arranged relative to the extending direction of the containing cavity. The non-return structure comprises a flexible part, the flexible part is arranged on the first end face, and when the sewage tank is in an upright state, the flexible part opens the sewage overflowing opening; and when the sewage tank is in a non-upright working state, the flexible piece seals the first end face so as to seal the sewage overflowing opening. According to the technical scheme, the problem that sewage in the sewage tank is prone to backflow in the prior art can be effectively solved.

Description

Technical Field

[0001] The present application relates to the field of cleaning devices, and in particular to a sewage tank and a cleaning device. Background Art

[0002] With the advancement of technology, floor scrubbers have become a commonly used cleaning device in households.

[0003] The current floor scrubber includes cleaning components and a sewage recovery system; the sewage recovery system includes a sewage tank. The sewage tank is generally divided into a second cavity and a first cavity, and the second cavity and the first cavity are connected through a one-way flat valve to reduce the probability of sewage backflow.

[0004] However, since the one-way flat-mouth valve does not close the sewage flow outlet, when the angle between the cleaning device and the ground is small, the sewage can easily flow back from the one-way flat-mouth valve into the second cavity and then be sucked into the fan, affecting the service life of the fan. Utility Model Content

[0005] The present application provides a sewage tank and a cleaning device, which are used to solve the problem that sewage in the sewage tank is prone to backflow when the cleaning device is used.

[0006] On the one hand, the present application provides a sewage tank, comprising: a tank body, a partition bracket and a non-return structure; wherein:

[0007] The box body has a accommodating cavity, the accommodating cavity has an air inlet and an air outlet, the partition bracket is arranged in the accommodating cavity and divides the accommodating cavity into a first cavity and a second cavity, the air inlet and the air outlet are both connected to the second cavity, and a sewage flow port connected to the first cavity and the second cavity is arranged between the partition bracket and the box body, the sewage flow port has a first end face facing the first cavity, and the first end face is arranged obliquely relative to the extension direction of the accommodating cavity;

[0008] The anti-return structure includes a flexible member, which is arranged on the first end surface. When the sewage tank is in an upright state, the flexible member opens the sewage flow outlet; when the sewage tank is in a non-upright working state, the flexible member closes the first end surface to close the sewage flow outlet.

[0009] The sewage tank provided in the present application is provided with a non-return structure, and the non-return structure can be movably arranged at the sewage flow outlet. When the sewage tank is in an upright state, the non-return structure can open the sewage flow outlet. When the sewage tank is in a non-upright working state, the non-return structure can close the sewage flow outlet to effectively reduce the probability of sewage backflow, thereby ensuring the service life of the fan.

[0010] In some embodiments, the first end of the flexible member is fixedly connected to the first end surface, and the second end of the flexible member is movably disposed relative to the first end surface.

[0011] This arrangement can ensure the stable connection of the flexible member while making the second end of the flexible member movable.

[0012] In some embodiments, the sewage flow outlet has a first edge close to the partition bracket and a second edge close to the inner wall of the box body, and the first end surface gradually tilts toward the direction close to the partition bracket in the direction from the second edge to the first edge.

[0013] The inclination of the first end face is set in this way, so that the flexible member installed on the first end face also has the same inclination as the first end face, thereby achieving the effect that the higher the sewage level, the better the sealing effect of the flexible member on the sewage flow outlet.

[0014] In some embodiments, when the sewage tank is in an upright position, the second end of the flexible member opens the sewage flow opening.

[0015] With such arrangement, when the sewage tank is in an upright state, the flexible member can open the sewage flow port under the action of its own gravity and the pressure of the sewage, thereby facilitating the sewage to flow into the first cavity.

[0016] In some embodiments, the sewage tank further includes a mounting shell, which is disposed on at least one of the partition bracket or the box body, a channel in the mounting shell forms a sewage flow port, and an end of the mounting shell facing the first cavity forms a first end face.

[0017] The above structure sets the sewage flow outlet on the mounting shell, making the mounting shell a component independent of the partition bracket, avoiding the opening of the sewage flow outlet on the partition bracket and avoiding the setting of the first end face on the partition bracket, thereby reducing the structural complexity of the partition bracket.

[0018] In some embodiments, the mounting shell is disposed on the box body, so that the mounting shell and the box body are better secured.

[0019] In some embodiments, a mounting opening is provided on the side wall of the box body, and the mounting shell extends into the accommodating cavity through the mounting opening and closes the mounting opening.

[0020] Such an arrangement makes the assembly of the installation shell simple and convenient, while also ensuring the sealing between the installation shell and the box body.

[0021] In some embodiments, the mounting shell includes a first plate body close to the partition bracket, a second plate body close to the inner wall of the box body, and two side plates arranged between the first plate body and the second plate body. The first plate body, the second plate body and the side plate body form a sewage flow outlet, and the first plate body, the second plate body and the side plate body form a first end face facing the end face of the first cavity.

[0022] Such an arrangement makes the structure of the installation shell simple and the flow rate of the sewage flow outlet large.

[0023] In some embodiments, a connecting portion is provided on the end surface of the first plate body facing the first cavity, and the first end of the flexible member is connected to the first plate body through the connecting portion. When the sewage tank is in a non-upright working state, the flexible member contacts and cooperates with the end surface of the second plate body and the side plate body facing the first cavity.

[0024] In the above structure, the connecting portion can ensure the connection stability of the flexible member on the one hand, and can also make the second end of the flexible member movable on the other hand.

[0025] In some embodiments, the flexible member includes a flexible member body and a counterweight structure arranged at the bottom of the flexible member body, so that when the sewage tank is in an upright state, the flexible member can open the sewage flow outlet and when the sewage tank is in a non-upright working state, the flexible member can close the sewage flow outlet.

[0026] In the above structure, the counterweight structure is arranged at the second end of the flexible member, so that the position movement of the flexible member under the action of gravity is more flexible.

[0027] In some embodiments, the partition bracket includes a bottom plate, which can divide the accommodating cavity into a first cavity and a second cavity, and the sewage flow outlet is arranged between the bottom plate and the inner wall of the box; the partition bracket also includes a shielding structure arranged on the bottom plate, and the shielding structure divides the second cavity into a sewage cavity and an airflow cavity, the sewage cavity is connected to the air inlet, and the airflow cavity is connected to the air outlet.

[0028] With such arrangement, the accommodating chamber is divided into three chambers by the partition structure, so that the air-water separation is more thorough, and the probability of moisture entering the motor through the airflow is reduced.

[0029] In some embodiments, an air pressure balance hole is provided on the partition bracket, and the air pressure balance hole connects the first cavity and the second cavity, so that sewage can flow smoothly from the second cavity into the first cavity.

[0030] and / or,

[0031] The sewage tank also includes a water level detection device arranged in the accommodating cavity, at least part of the water level detection device extends into the first cavity, and the water level detection device can detect the water level of the sewage in the first cavity to remind the user to clean the sewage tank in time.

[0032] On the other hand, the present application provides a cleaning device, which includes a cleaning component, a connecting rod and the above-mentioned sewage tank, wherein the cleaning component and the sewage tank are both connected to the connecting rod, and the cleaning component and the sewage tank are in communication.

[0033] The cleaning device of the present application has the advantages of long service life and good user experience because the sewage tank is provided.

[0034] The sewage tank provided in the present application includes a box body, the box body has a accommodating cavity, a partition bracket is arranged in the accommodating cavity, the partition bracket divides the accommodating cavity into a first cavity and a second cavity, the second cavity is connected with an air inlet and an air outlet, the first cavity is used to collect sewage and impurities, and the second cavity is used to separate the airflow from sewage, impurities, etc. A sewage flow port is also arranged between the partition bracket and the inner wall of the box body, and sewage can flow from the second cavity into the first cavity through the sewage flow port. The sewage flow port has a first end face facing the first cavity, and the first end face is inclined relative to the extension direction of the accommodating cavity. The anti-return structure includes a flexible member, and the flexible member is arranged on the first end face, so that the inclination state of the flexible member and the first end face is the same.

[0035] During the use of the cleaning device, the cleaning component of the cleaning device is in contact with the ground, and the operator holds the handle of the cleaning device to control the movement of the cleaning component. If the cleaning device is in an upright state, the sewage tank is also in an upright state following the posture of the cleaning device. At this time, due to the tilted setting of the flexible member, the bottom end of the flexible member can sink under the action of gravity, so that the flexible member can open the sewage flow port, and the sewage can flow from the second cavity into the first cavity. Specifically, when the fan is working, the sewage and solid impurities are carried into the second cavity by the airflow. At this time, the solid garbage and sewage sink to the bottom of the second cavity under the action of gravity, and the airflow is discharged from the air outlet. At this time, due to the tilted setting of the flexible member, it can open the sewage flow port under the action of its own gravity and the squeezing force of the sewage, connecting the second cavity and the first cavity, and the solid garbage and sewage can flow from the sewage flow port into the first cavity and be stored in the first cavity.

[0036] When the cleaning device is in a non-upright working state, the sewage tank also follows the posture of the cleaning device and is in a non-upright working state. At this time, due to the tilted setting of the flexible member, the flexible member can block the sewage flow outlet under the action of its own gravity, and the greater the tilt angle of the cleaning device during operation, the better the blocking effect of the flexible member on the sewage flow outlet. And as the amount of water stored in the first cavity gradually increases, the sewage liquid level moves up until the sewage liquid level a touches the flexible member. At this time, the flexible member can close the sewage flow outlet under the action of the sewage's own gravity and the sewage squeezing force, thereby preventing the sewage from flowing back. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0038] Figure 1 A cross-sectional view of a sewage tank provided in an embodiment of the present application, wherein: Figure 1 A schematic diagram showing a sewage tank in an upright position;

[0039] Figure 2 for Figure 1 An enlarged structural diagram of the sewage tank at A;

[0040] Figure 3 for Figure 1 An enlarged structural diagram of the sewage tank at B;

[0041] Figure 4 A cross-sectional view of a sewage tank provided in an embodiment of the present application, wherein: Figure 4 A schematic diagram showing a sewage tank in a non-upright working state.

[0042] Description of reference numerals:

[0043] 10. Sewage tank;

[0044] 100, box body; 101, first cavity; 102, second cavity; 1021, sewage cavity; 1022, air flow cavity; 103, air inlet; 104, air outlet; 105, air flow channel; 110, outer cylinder; 111, installation port; 120, inner cylinder; 130, box cover;

[0045] 140, mounting shell; 141, first plate body; 1411, connecting portion; 142, second plate body; 143, side plate body; 144, sewage flow outlet; 145, first end face;

[0046] 200, partition bracket; 210, bottom plate; 211, air pressure balance port; 220, shielding structure;

[0047] 300, flexible member; 310, flexible member body; 320, counterweight structure;

[0048] a. Sewage level. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] In the related art, when a floor scrubber is cleaning the floor, the airflow generated by the fan will suck sewage and solid particles into a sewage tank, and the sewage, solid waste and airflow will be separated through the sewage tank.

[0051] Specifically, the sewage tank is generally divided into a second cavity and a first cavity. The bottom of the second cavity is connected to the first cavity through a one-way flat valve, and the top of the second cavity is connected to the air outlet of the sewage tank. When the floor scrubber is working, the airflow carries sewage and solid waste into the second cavity, the sewage flows into the first cavity through the one-way flat valve, and the solid waste remains in the second cavity. The airflow is discharged from the air outlet at the top of the second cavity, realizing the separation of liquid, solid and gas.

[0052] The one-way flat-mouth valve is a structure with a large inlet and a small outlet. When sewage flows from the large-mouth end to the small-mouth end, the sewage can flow out smoothly from the one-way flat-mouth valve. However, during the operation of the floor scrubber, the longer the working time, the more sewage will be collected in the sewage tank. Although the one-way flat-mouth valve can reduce the probability of sewage backflow to a certain extent, since the small-mouth end still has a certain flow area, the sewage is easy to flow back from the one-way flat-mouth valve into the second cavity, and then be sucked into the fan, affecting the service life of the fan.

[0053] To solve the above problems, the present application provides a sewage tank for a cleaning device, on which a non-return structure is arranged, and the non-return structure can be movably arranged at the sewage flow outlet. When the sewage tank is in an upright state, the non-return structure can open the sewage flow outlet. When the sewage tank is in a non-upright working state, the non-return structure can close the sewage flow outlet to effectively reduce the probability of sewage backflow, thereby ensuring the service life of the fan.

[0054] The sewage tank provided in the embodiment of the present application is described below in conjunction with the accompanying drawings. It should be noted that the sewage tank provided in the embodiment of the present application can be applied to a cleaning device, and illustratively, the cleaning device can be a floor scrubber.

[0055] Figure 1 A cross-sectional view of a sewage tank provided in an embodiment of the present application, wherein: Figure 1 A schematic diagram showing a sewage tank in an upright position; Figure 2 for Figure 1 An enlarged structural diagram of the sewage tank at A; Figure 3 for Figure 1 An enlarged structural diagram of the sewage tank at B; Figure 4 A cross-sectional view of a sewage tank provided in an embodiment of the present application, wherein: Figure 4 A schematic diagram showing a sewage tank in a non-upright working state.

[0056] like Figures 1 to 4 As shown, the sewage tank 10 of this embodiment includes: a tank body 100, a partition bracket 200 and a non-return structure; wherein,

[0057] The housing 100 has a accommodating cavity, the accommodating cavity has an air inlet 103 and an air outlet 104, the partition bracket 200 is arranged in the accommodating cavity, and divides the accommodating cavity into a first cavity 101 and a second cavity 102, the air inlet 103 and the air outlet 104 are both connected to the second cavity 102, and a sewage flow port 144 connecting the first cavity 101 and the second cavity 102 is arranged between the partition bracket 200 and the housing 100, the sewage flow port 144 has a first end face 145 facing the first cavity 101, and the first end face 145 is arranged obliquely relative to the extension direction of the accommodating cavity;

[0058] The anti-return structure includes a flexible member 300, which is arranged on the first end surface 145. When the sewage tank 10 is in an upright state, the flexible member 300 opens the sewage flow outlet 144; when the sewage tank 10 is in a non-upright working state, the flexible member 300 closes the first end surface 145 to close the sewage flow outlet 144.

[0059] According to the technical solution of this embodiment, the sewage tank 10 includes a box body 100, which has a receiving cavity. A partition bracket 200 is arranged in the receiving cavity. The partition bracket 200 divides the receiving cavity into a first cavity 101 and a second cavity 102. The second cavity 102 is connected with an air inlet 103 and an air outlet 104. The first cavity 101 is used to collect sewage and impurities, and the second cavity 102 is used to separate airflow from sewage, impurities, etc. A sewage flow port 144 is also arranged between the partition bracket 200 and the inner wall of the box body 100, and sewage can flow from the second cavity 102 into the first cavity 101 through the sewage flow port 144. The sewage flow port 144 has a first end face 145 facing the first cavity 101, and the first end face 145 is arranged to be inclined relative to the extension direction of the receiving cavity. The anti-return structure includes a flexible member 300 . The flexible member 300 is disposed on the first end surface 145 . Therefore, the flexible member 300 and the first end surface 145 have the same inclination state.

[0060] During the use of the cleaning device, the cleaning component of the cleaning device (such as a floor brush) is in contact with the ground, and the operator holds the handle of the cleaning device to control the movement of the cleaning component. If the cleaning device is in an upright state, the sewage tank 10 is also in an upright state following the posture of the cleaning device (such as Figure 1As shown, at this time, due to the tilted setting of the flexible member 300, the bottom end of the flexible member 300 can sink under the action of gravity, so that the flexible member 300 can open the sewage flow port 144, and the sewage can flow from the second cavity 102 into the first cavity 101. Specifically, when the fan is working, the sewage and solid impurities are carried by the airflow into the second cavity 102, and at this time, the solid garbage and sewage sink to the bottom of the second cavity under the action of gravity, and the airflow is discharged from the air outlet 104. At this time, due to the tilted setting of the flexible member 300, it can open the sewage flow port 144 under the action of its own gravity and the squeezing force of the sewage, connecting the second cavity 102 and the first cavity 101, and the solid garbage and sewage can flow from the sewage flow port 144 into the first cavity 101 and be stored in the first cavity 101.

[0061] When the cleaning device is in a non-upright working state, the sewage tank 10 also follows the posture of the cleaning device and is in a non-upright working state (such as Figure 4 As shown in FIG. 1 , at this time, since the flexible member 300 is tilted, the flexible member 300 can block the sewage flow opening 144 under the action of its own gravity, and the larger the tilt angle of the cleaning device during operation, the better the blocking effect of the flexible member 300 on the sewage flow opening 144. And as the amount of water stored in the first cavity 101 gradually increases, the sewage liquid level a (as shown in FIG. Figure 4 The flexible member 300 moves upward (as shown by the middle dotted line) until the sewage surface a touches the flexible member 300. At this time, the flexible member 300 can close the sewage flow outlet 144 under the action of the sewage's own gravity and the sewage squeezing force, thereby preventing the sewage from flowing back.

[0062] It should be noted that the "upright state" refers to the axis of the sewage tank being in the vertical direction, and the axis of the sewage tank is also perpendicular or approximately perpendicular to the ground (or other plane to be cleaned). The "non-upright working state" mainly refers to the state in which the cleaning device is in working state, and there is an angle between the axis of the sewage tank and the vertical direction. At this time, the cleaning device is tilted relative to the ground or other plane to be cleaned, and the angle between the axis of the sewage tank and the ground is less than 90°, so as to facilitate cleaning in a space with limited height or to facilitate reaching under furniture.

[0063] It should also be noted that the flexible member 300 may be made of elastic material, such as plastic, silicone and the like.

[0064] like Figures 1 to 4 As shown, in some embodiments, the first end of the flexible member 300 is fixedly connected to the first end surface 145, and the second end of the flexible member 300 is movably arranged relative to the first end surface 145. This arrangement can ensure the stable connection of the flexible member 300 while making the second end of the flexible member 300 movable.

[0065] like Figures 1 to 4 As shown, in some embodiments, the sewage flow outlet 144 has a first edge close to the partition bracket 200 and a second edge close to the inner wall of the box body 100, and the first end surface 145 gradually tilts toward the direction close to the partition bracket 200 in the direction from the second edge to the first edge.

[0066] The first end face 145 is tilted in such a manner that the flexible member 300 mounted on the first end face 145 also has the same tilt as the first end face 145. The flexible member 300 is tilted in the above-mentioned tilting manner, so that when the cleaning device is working in a non-upright working state, the sewage liquid level a can first contact the second end of the flexible member 300, and apply a squeezing force to the second end of the flexible member 300, so that the flexible member 300 is in a state of blocking the sewage flow outlet. As the sewage liquid level a gradually increases, the contact area between the sewage and the flexible member 300 gradually increases, and then a greater thrust force can be applied to the flexible member 300, so that the higher the sewage liquid level a, the better the sealing effect of the flexible member 300 on the sewage flow outlet.

[0067] like Figures 1 to 4 As shown, in some embodiments, when the sewage tank 10 is in an upright state, the second end of the flexible member 300 opens the sewage flow opening 144 .

[0068] In the above structure, since the flexible member 300 is tilted, when the sewage tank 10 is in an upright state, it can open the sewage flow port 144 due to its own gravity and the sewage squeezing force, thereby facilitating the sewage to flow into the first cavity 101 .

[0069] It should be noted that, in the process of the sewage tank tilting from the upright state to the non-upright working state, the second end of the flexible member 300 gradually changes from the state of opening the sewage flow opening 144 to the state of blocking the sewage flow opening, that is, the second end of the flexible member 300 gradually changes from the state of being at a distance from the first end surface 145 to the state of being in contact with the first end surface 145. And as the tilt angle of the sewage tank in the non-upright working state increases, the blocking effect of the flexible member 300 on the sewage flow opening 144 becomes better.

[0070] like Figures 1 to 4 As shown, in some embodiments, the sewage tank 10 also includes a mounting shell 140, which is disposed on at least one of the partition bracket 200 or the box body 100, and the channel inside the mounting shell 140 forms a sewage flow port 144, and one end of the mounting shell 140 facing the first cavity 101 forms a first end face 145.

[0071] In the above structure, the sewage flow-through port is arranged on the mounting shell 140, so that the mounting shell becomes a component independent of the partition bracket 200, avoiding the need to provide a sewage flow-through port on the partition bracket 200 and avoiding the need to provide a first end face 145 on the partition bracket 200, thereby reducing the structural complexity of the partition bracket 200 and facilitating the processing of the partition bracket 200. As the mounting shell 140 is an independent structure, both the processing of the sewage flow-through port 144 and the processing of the inclination angle of the first end face 145 are relatively convenient, which helps to improve the processing convenience of the sewage tank.

[0072] Exemplarily, the mounting shell 140 may be disposed on the box body 100 and fixedly connected to the box body 100 .

[0073] Specifically, a mounting opening 111 is provided on the side wall of the box body 100, and the mounting shell 140 extends into the accommodating cavity through the mounting opening 111 and closes the mounting opening 111, so that the assembly of the mounting shell 140 is simple and convenient, and the sealing between the mounting shell 140 and the box body 100 is also ensured.

[0074] like Figures 1 to 4 As shown, in some embodiments, the mounting shell 140 includes a first plate body 141 close to the partition bracket 200, a second plate body 142 close to the inner wall of the box body 100, and two side plates 143 arranged between the first plate body 141 and the second plate body 142. The first plate body 141, the second plate body 142 and the side plate body 143 surround a sewage flow outlet 144, and the first plate body 141, the second plate body 142 and the side plate body 143 form a first end face 145 facing the end face of the first cavity 101.

[0075] In the above structure, the sewage flow opening 144 is a square opening structure surrounded by four plates, which ensures the sewage flow rate of the sewage flow opening 144. In addition, the end surface of each plate body facing the first cavity 101 together forms the first end surface 145, which ensures the flatness of the first end surface 145, and further ensures the fit between the flexible member 300 and the first end surface 145.

[0076] Of course, in some embodiments, the mounting shell 140 may also be in other shapes, such as a circular cylinder, a pentagonal cylinder, a hexagonal cylinder, etc.

[0077] like Figures 1 to 4 As shown, in some embodiments, a connecting portion 1411 is provided on the end surface of the first plate body 141 facing the first cavity 101, and the first end of the flexible member 300 is connected to the first plate body 141 through the connecting portion 1411. When the sewage tank 10 is in a non-upright working state, the flexible member 300 contacts and cooperates with the end surfaces of the second plate body 142 and the side plate body 143 facing the first cavity 101.

[0078] In the above structure, the connection portion 1411 can ensure the connection stability of the flexible member 300 on the one hand, and can also make the second end of the flexible member 300 movable on the other hand.

[0079] Exemplarily, the connection portion 1411 may be a plurality of protruding structures, a first end of the flexible member 300 is provided with a plurality of insertion holes, and the flexible member 300 is inserted into the protruding structures through the insertion holes to achieve connection between the flexible member 300 and the mounting shell 140 .

[0080] Specifically, the protruding structure may be a boss, a protruding column, etc. The end of the protruding structure may also be thickened in diameter so that the insertion hole of the flexible member is sheathed on the protruding structure by deformation to prevent the flexible member from coming off the protruding structure.

[0081] like Figures 1 to 4 As shown, in some embodiments, the flexible member 300 includes a flexible member 300 body and a counterweight structure 320 disposed at the bottom of the flexible member 300 body, so that when the sewage tank 10 is in an upright state, the flexible member 300 can open the sewage flow outlet 144, and when the sewage tank 10 is in a non-upright working state, the flexible member 300 can close the sewage flow outlet 144.

[0082] In the above structure, the counterweight structure 320 is provided at the second end of the flexible member 300, so that the position movement of the flexible member 300 under the action of gravity is more flexible. Specifically, when the sewage tank 10 is in an upright state, due to the provision of the counterweight structure 320, the flexible member 300 is more likely to remain in a state of opening the sewage flow opening 144 under the action of gravity. When the sewage tank is in a non-upright working state, due to the provision of the counterweight structure 320, the flexible member 300 can be more likely to remain in a state of closing the sewage flow opening 144 under the action of gravity.

[0083] In some embodiments, the partition bracket 200 includes a bottom plate 210, which can separate the accommodating cavity into a first cavity 101 and a second cavity 102, and the sewage flow outlet 144 is arranged between the bottom plate 210 and the inner wall of the box body 100; the partition bracket 200 also includes a shielding structure 220 arranged on the bottom plate 210, and the shielding structure 220 divides the second cavity 102 into a sewage cavity 1021 and an airflow cavity 1022, the sewage cavity 1021 is connected to the air inlet 103, and the airflow cavity 1022 is connected to the air outlet 104.

[0084] In the above structure, the shielding structure 220 is arranged on the bottom plate 210 and divides the second cavity 102 into a sewage cavity 1021 and an airflow cavity 1022. When the cleaning device is working, sewage and solid waste can be carried by the airflow into the sewage cavity 1021 first. Due to the obstruction of the shielding structure 220, the sewage and solid waste can be concentrated in the sewage cavity 1021, and enter the first cavity 101 from the sewage cavity 1021 to gather. After the airflow enters the sewage cavity 1021 first, it enters the airflow cavity 1022 from the airflow channel 105 between the edge of the shielding structure 220 and the inner wall of the box body 100, and finally is discharged from the air outlet 104. Therefore, due to the provision of the shielding structure 220, the probability of sewage being discharged from the air outlet 104 along with the airflow is further reduced, thereby helping to further extend the service life of the fan.

[0085] It should be noted that a notch groove is provided on the bottom plate 210 of the partition bracket 200, and the notch groove can accommodate the installation shell 140. In addition, the sewage tank 10 also includes a sealing member, and the sealing member includes a sealing ring sealed between the bottom plate 210 and the installation shell 140, and the sealing ring can improve the sealing between the bottom plate 210 and the installation shell 140, thereby reducing the probability of sewage flowing into the second cavity 102 from the gap between the bottom plate 210 and the installation shell 140.

[0086] like Figure 1 and Figure 2 As shown, in some embodiments, the separation bracket 200 has an air pressure balance hole, and the air pressure balance hole connects the first cavity 101 and the second cavity 102 .

[0087] In the above structure, the air pressure balance port 211 can balance the air pressure between the second cavity and the first cavity, so that the sewage can flow smoothly from the second cavity into the first cavity.

[0088] In some embodiments, the sewage tank 10 further includes a water level detection device disposed in the accommodating cavity, and at least a portion of the water level detection device extends into the first cavity 101 .

[0089] In the above structure, the water level detection device can detect the water level of the sewage in the first cavity 101. When the water level exceeds a predetermined position, a signal can be sent to the controller of the cleaning device to stop the rotation of the fan or send a signal to the user to clean the sewage tank. This setting can further reduce the risk of fan damage.

[0090] It should also be noted that, in some embodiments, the sewage tank further includes a filter assembly, which is disposed at the air outlet 104 and is used to filter the airflow to reduce the probability of impurities being carried in the airflow to ensure the cleanliness of the gas blown out from the cleaning device. Exemplarily, the filter assembly may be a HEPA filter.

[0091] The specific structure of the box body 100 is described below with reference to the accompanying drawings.

[0092] like Figures 1 to 4 As shown, the box body 100 includes an outer cylinder 110, an inner cylinder 120 and a box cover 130. The outer cylinder 110 and the box cover 130 together form a receiving cavity. The inner cylinder 120 communicates with both sides of the receiving cavity. The first end of the inner cylinder 120 communicates with the outside of the sewage tank. The second end of the inner cylinder 120 passes through the partition bracket 200 and extends to the second cavity 102. The second end of the inner cylinder 120 forms an air inlet 103 of the sewage tank. The box cover 130 is provided with an air outlet 104.

[0093] Specifically, the airflow can carry solid waste and sewage into the inner cylinder 120, and enter the second cavity 102 from the air inlet 103. The shielding structure 220 divides the second cavity 102 into a sewage cavity 1021 and an airflow cavity 1022. When the cleaning device is working, sewage and solid waste can be carried by the airflow and first enter the sewage cavity 1021. Due to the obstruction of the shielding structure 220, the sewage and solid waste can be concentrated in the sewage cavity 1021, and enter the first cavity 101 from the sewage cavity 1021 to be collected. After entering the sewage cavity 1021, the airflow enters the airflow cavity 1022 from the airflow channel 105 between the edge of the shielding structure 220 and the inner wall of the outer cylinder 110, and finally is discharged from the air outlet 104.

[0094] On the other hand, the present application provides a cleaning device, which includes a cleaning component, a connecting rod and the above-mentioned sewage tank 10, wherein the cleaning component and the sewage tank 10 are both connected to the connecting rod, and the cleaning component and the sewage tank 10 are in communication. Since the sewage tank 10 has the advantage of preventing sewage from flowing back, the cleaning device having the same has the advantages of a long service life of the fan and a good user experience.

[0095] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0096] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0097] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of this 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 numbers used in this way can be interchanged where appropriate, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0098] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0099] Finally, it should be noted that the above implementation modes are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned implementation modes, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned implementation modes can still be modified, or some or all of the technical features therein can be replaced by 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 implementation modes of the present application.

Claims

1. A sewage tank, characterized in that: include: A box body (100), a partition bracket (200) and a non-return structure; wherein: The housing (100) has a accommodating cavity, the accommodating cavity has an air inlet (103) and an air outlet (104), the partition bracket (200) is arranged in the accommodating cavity and divides the accommodating cavity into a first cavity (101) and a second cavity (102), the air inlet (103) and the air outlet (104) are both connected to the second cavity (102), and a sewage flow outlet (144) connecting the first cavity (101) and the second cavity (102) is arranged between the partition bracket (200) and the housing (100), the sewage flow outlet (144) has a first end surface (145) facing the first cavity (101), and the first end surface (145) is arranged obliquely relative to the extension direction of the accommodating cavity; The anti-return structure comprises a flexible member (300), wherein the flexible member (300) is arranged on the first end surface (145); when the sewage tank is in an upright state, the flexible member (300) opens the sewage flow outlet (144); when the sewage tank is in a non-upright working state, the flexible member (300) closes the first end surface (145) to close the sewage flow outlet (144).

2. The sewage tank according to claim 1, characterized in that: The first end of the flexible member (300) is fixedly connected to the first end surface (145), and the second end of the flexible member (300) is movably arranged relative to the first end surface (145).

3. The sewage tank according to claim 2, characterized in that: The sewage flow outlet (144) has a first edge close to the partition bracket (200) and a second edge close to the inner wall of the box body (100), and the first end surface (145) gradually inclines toward the direction close to the partition bracket (200) in the direction from the second edge to the first edge.

4. The sewage tank according to claim 3, characterized in that: When the sewage tank is in an upright state, the second end of the flexible member (300) opens the sewage flow opening (144).

5. The sewage tank according to any one of claims 1 to 4, characterized in that: The sewage tank further comprises a mounting shell (140), wherein the mounting shell (140) is arranged on at least one of the partition bracket (200) or the box body (100), a channel in the mounting shell (140) forms the sewage flow port (144), and one end of the mounting shell (140) facing the first cavity (101) forms a first end surface (145).

6. The sewage tank according to claim 5, characterized in that: The mounting shell (140) is arranged on the box body (100).

7. The sewage tank according to claim 6, characterized in that: A mounting opening (111) is provided on the side wall of the box body (100), and the mounting shell (140) extends into the accommodating cavity through the mounting opening (111) and closes the mounting opening (111).

8. The sewage tank according to claim 5, characterized in that: The mounting shell (140) comprises a first plate body (141) close to the partition bracket (200), a second plate body (142) close to the inner wall of the box body (100), and two side plates (143) arranged between the first plate body (141) and the second plate body (142); the first plate body (141), the second plate body (142), and the side plates (143) enclose the sewage flow outlet (144); and the end surfaces of the first plate body (141), the second plate body (142), and the side plates (143) facing the first cavity (101) form the first end surface (145).

9. The sewage tank according to claim 8, characterized in that: The end surface of the first plate body (141) facing the first cavity (101) is provided with a connecting portion (1411), and the first end of the flexible member (300) is connected to the first plate body (141) via the connecting portion (1411). When the sewage tank is in a non-upright working state, the flexible member (300) is in contact and cooperation with the end surfaces of the second plate body (142) and the side plate body (143) facing the first cavity (101).

10. The sewage tank according to any one of claims 1 to 4, characterized in that: The flexible member (300) comprises a flexible member (300) body and a counterweight structure (320) arranged at the bottom of the flexible member (300) body, so that when the sewage tank is in an upright state, the flexible member (300) can open the sewage flow outlet (144) and when the sewage tank is in a non-upright working state, the flexible member (300) can close the sewage flow outlet (144).

11. The sewage tank according to any one of claims 1 to 4, characterized in that: The partition bracket (200) comprises a bottom plate (210), the bottom plate (210) partitioning the accommodating cavity into the first cavity (101) and the second cavity (102), and the sewage flow outlet (144) is arranged between the bottom plate (210) and the inner wall of the box body (100); The partition bracket (200) further comprises a shielding structure (220) arranged on the bottom plate (210), wherein the shielding structure (220) divides the second cavity (102) into a sewage cavity (1021) and an airflow cavity (1022), wherein the sewage cavity (1021) is connected to the air inlet (103), and the airflow cavity (1022) is connected to the air outlet (104).

12. The sewage tank according to any one of claims 1 to 4, characterized in that: The partition bracket (200) is provided with an air pressure balance hole, and the air pressure balance hole communicates with the first cavity (101) and the second cavity (102); and / or, The sewage tank also includes a water level detection device arranged in the accommodating cavity, and at least a portion of the water level detection device extends into the first cavity (101).

13. A cleaning device, characterized in that: The cleaning device comprises a cleaning component, a connecting rod and a sewage tank (10) according to any one of claims 1 to 12, wherein the cleaning component and the sewage tank (10) are both connected to the connecting rod, and the cleaning component and the sewage tank (10) are in communication.

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