Sewage collecting device, cleaning equipment and control method of sewage collecting device

Abstract

The invention discloses a dirt collecting device, cleaning equipment and a control method of the dirt collecting device.The dirt collecting device comprises a liquid storage tank, the liquid storage tank comprises a first tank part and a second tank part, the first tank part is provided with a dirt inlet and comprises a first bottom wall inclining downwards, and the second tank part is arranged at the lowest position of the first bottom wall and communicates with the first bottom wall; the second box part is provided with a sewage outlet which can be opened or closed; the filtering part is arranged in the first box part and is communicated with the sewage inlet; and the sewage stirring component is arranged on the first box part or the second box part so as to stir the liquid in the liquid storage box. Through cooperation of the filtering component, the liquid storage tank and the sewage stirring component, the risk that a sewage outlet is blocked by particles such as dirt and silt can be reduced, the particles such as dirt and silt can be discharged out of the liquid storage tank, the sewage discharging effect is improved, the sewage collecting device can reduce water consumption while the good sewage discharging effect is guaranteed, and the sewage discharging efficiency is improved. And water resources can be saved.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and more particularly to a sewage collection device, a cleaning equipment, and a control method for the sewage collection device. Background Art

[0002] In recent years, with the development of automation technology and artificial intelligence, the demand for cleaning robots (fully automatic driverless cleaning robots and manually driven cleaning equipment or robots) has become increasingly widespread. In the industrial and commercial application fields, the cleaning area is large, and there is a lot of dirt on the site, so cleaning robots with a large cleaning capacity are required for cleaning. Cleaning robots or equipment with a large cleaning capacity need to have a large-capacity sewage tank for collecting and accommodating garbage, sewage, and sediment. When the cleaning of the site or equipment is completed or the sewage tank reaches its maximum capacity, the sewage tank needs to be emptied. Since it takes about 30 minutes to 4 hours from the start of cleaning to sewage discharge (the entire cleaning time varies depending on the size of the water tank and the cleaning efficiency), during this process, due to gravity, garbage and sediment will sink downward in the water tank and accumulate at the bottom of the water tank, resulting in the adhesion of garbage and sediment deposits to the bottom and side walls during sewage discharge, and even caking, causing the sewage outlet to be blocked. If not cleaned in time, it will also produce bacteria and odors, polluting the environment and affecting human health. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, an object of the present invention is to provide a sewage collection device, which can effectively alleviate the adhesion of internal sediments to the bottom and sides, is beneficial to reducing the probability of blockage of the sewage outlet, and thoroughly discharges dirt.

[0004] The present invention also aims to provide a cleaning equipment to apply the above sewage collection device.

[0005] The present invention also aims to provide a control method for the sewage collection device to apply the above sewage collection device.

[0006] According to an embodiment of the present invention, the sewage collection device includes: a liquid storage tank, the liquid storage tank includes a first tank portion and a second tank portion, the first tank portion is provided with a sewage inlet, the first tank portion includes a first bottom wall inclined downward, the second tank portion is provided at the lowest position of the first bottom wall and is communicated with the first bottom wall, and the second tank portion is provided with an openable or closable sewage outlet; a filtering component, the filtering component is arranged in the first tank portion and is communicated with the sewage inlet; a sewage stirring component, the sewage stirring component is arranged on the first tank portion or the second tank portion to stir the liquid in the liquid storage tank.

[0007] According to the sewage collection device of the embodiments of the present invention, larger-sized particulate matters can be filtered by the filtering component and enter the liquid storage tank. By constructing the liquid storage tank into a special-shaped structure composed of a first tank portion and a second tank portion, the adhesion area of particulate matters such as dirt and sediment can be reduced, and the particulate matters such as dirt and sediment can be concentrated and settled in the second tank portion with a smaller volume, which is beneficial to accelerating the sewage discharge speed and also beneficial to discharging particulate matters such as sediment and garbage with a larger volume. The sewage stirring component can stir the movement of the sewage, making the particulate matters such as dirt and sediment mix with the sewage into a suspended state, which is beneficial to completely discharging the particulate matters such as dirt and sediment from the liquid storage tank. That is to say, through the coordinated cooperation of the filtering component, the liquid storage tank and the sewage stirring component, using this sewage collection device can reduce the risk of the particulate matters such as dirt and sediment blocking the sewage outlet, which is beneficial to the liquid storage tank to drain the particulate matters such as dirt and sediment completely, improve the sewage discharge effect, and moreover, this sewage collection device can also reduce the water consumption while ensuring a good sewage discharge effect, which is beneficial to saving water resources.

[0008] In some embodiments of the present invention, the second tank portion includes a second bottom wall and a second side wall. The second side wall is circumferentially arranged around the second bottom wall, and in the direction from top to bottom, the width of the area surrounded by the second side wall gradually decreases.

[0009] In some embodiments of the present invention, the second side wall is an arc-shaped wall or an inclined wall.

[0010] In some embodiments of the present invention, the first tank portion includes a first side wall, and the first side wall is circumferentially arranged around the first bottom wall; the second side wall includes a first wall portion and a second wall portion which are oppositely arranged. The first wall portion is connected to the first side wall and is inclined towards the side close to the second wall portion relative to the first side wall, and the second wall portion is connected to the first bottom wall.

[0011] In some embodiments of the present invention, the sewage outlet is arranged on the first wall portion and is located at the bottom of the first wall portion.

[0012] In some embodiments of the present invention, the second bottom wall is an inclined wall and is inclined towards the bottom of the first wall portion relative to the second wall portion.

[0013] In some embodiments of the present invention, the second tank portion includes at least two tank body portions which are sequentially communicated in the up-and-down direction. A step structure is formed between any two adjacent tank body portions, and a sewage outlet is arranged on the one of the at least two tank body portions that is far from the first tank portion.

[0014] In some embodiments of the present invention, the sewage stirring component includes a stirring member, a rotating shaft, a sealing member and a rotation driving member. The stirring member is arranged inside the liquid storage tank, the rotating shaft penetrates through the tank wall of the liquid storage tank and is connected to the stirring member, the sealing member is hermetically arranged between the rotating shaft and the first bottom wall, and the rotation driving member is arranged outside the liquid storage tank and is connected to the rotating shaft.

[0015] In some embodiments of the present invention, the first tank portion includes a first side wall and a first top wall. The first side wall is circumferentially arranged around the first bottom wall, and the first top wall connects the first side wall and the first bottom wall. The sewage agitation member is provided on at least one of the first bottom wall, the first side wall, and the first top wall.

[0016] A cleaning device according to an embodiment of the present invention includes the sewage collection device of any one of the foregoing.

[0017] For the cleaning device according to the embodiment of the present invention, since the sewage collection device has a good sewage discharge effect, can discharge internal dirt and other particulate matters more thoroughly, and can also reduce the water consumption, it can thereby reduce the cleaning frequency of the cleaning device itself, reduce the number of manual cleanings or avoid manual cleaning, which is conducive to realizing the automatic sewage discharge of the sewage collection device. Moreover, it can also reduce the cleaning water consumption, ensure that there is more sufficient water when the cleaning device cleans the surface such as the ground, and improve the user experience.

[0018] A control method for the sewage collection device according to an embodiment of the present invention includes the sewage collection device described in any one of the foregoing. The method includes: regularly starting the sewage agitation member to agitate the sewage inside the liquid storage tank.

[0019] For the control method of the sewage collection device according to the embodiment of the present invention, regularly starting the sewage agitation member to agitate the sewage can keep the sewage inside the liquid storage tank in a "moving state", avoid sediment, dirt and other particulate matters from depositing on the tank wall of the liquid storage tank for a long time to form stubborn attachments, and can also enhance the fluidity of the sewage, increase the kinetic energy of the sewage during the sewage discharge process. When the sewage discharge port is opened, the sewage with good fluidity can be discharged from the liquid storage tank more smoothly, improving the sewage discharge speed and efficiency, reducing the sewage discharge time and the amount of residual sewage. For some stubborn impurities attached to the tank wall or bottom, the water flow impact force generated by the sewage agitation member can loosen them and bring them into the sewage flow, and they are discharged from the liquid storage tank along with the sewage discharge process, thereby achieving a more thorough sewage discharge effect and keeping the inside of the liquid storage tank clean. Using the above method can reduce the water consumption while meeting the same cleaning effect, and can also reduce or eliminate the need for manual participation, which is conducive to the automatic sewage discharge of the sewage collection device.

[0020] In some embodiments of the present invention, the control method of the sewage collection device includes: detecting the liquid level height inside the liquid storage tank, and adjusting the working mode and working time of the sewage agitation member according to the liquid level height.

[0021] In some embodiments of the present invention, the steps of detecting the liquid level height inside the liquid storage tank and adjusting the working mode and working time of the sewage stirring component according to the liquid level height include: when it is detected that the liquid level height inside the liquid storage tank is at the first threshold, controlling the sewage stirring component to continuously work for the first set time; when it is detected that the liquid level height inside the liquid storage tank is at the second threshold, controlling the sewage stirring component to work intermittently for the second set time, where the second threshold is less than the first threshold.

[0022] In some embodiments of the present invention, when the sewage collection device needs to discharge sewage, controlling the sewage collection device to operate in a sewage discharge mode, and the sewage discharge mode includes: starting the sewage stirring component; opening the sewage discharge port; after emptying the sewage in the liquid storage tank, closing the sewage discharge port.

[0023] In some embodiments of the present invention, the steps of starting the sewage stirring component include: detecting the liquid level height in the liquid storage tank; when the liquid level height is at the third threshold, controlling the sewage stirring component to operate at the first speed; when the liquid level height is at the fourth threshold, controlling the sewage stirring component to operate at the second speed, where the fourth threshold is less than the third threshold and the second speed is less than the first speed.

[0024] In some embodiments of the present invention, the sewage discharge mode further includes: performing secondary sewage discharge, and the steps of secondary sewage discharge include: injecting flushing liquid into the liquid storage tank until the liquid level height in the liquid storage tank is at the fifth threshold; starting the sewage stirring component;

[0025] opening the sewage discharge port; after emptying the sewage in the liquid storage tank, closing the sewage discharge port.

[0026] In some embodiments of the present invention, the sewage discharge mode further includes: repeating the steps of secondary sewage discharge at least twice.

[0027] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0028] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0029] Figure 1 is a cross-sectional view of the sewage collection device according to some embodiments of the present invention;

[0030] Figure 2 is a cross-sectional view of the sewage collection device according to some other embodiments of the present invention;

[0031] Figure 3 is a three-dimensional structural schematic diagram of the sewage stirring component according to some embodiments of the present invention;

[0032] Figure 4Cross-sectional view of the sewage agitation component in some embodiments of the present invention;

[0033] Figure 5 Flowchart of the control method for the sewage collection device in some embodiments of the present invention Figure 1 ;

[0034] Figure 6 Flowchart of the control method for the sewage collection device in some embodiments of the present invention Figure 2 ;

[0035] Figure 7 Flowchart of the control method for the sewage collection device in some embodiments of the present invention Figure 3 ;

[0036] Figure 8 Flowchart of the control method for the sewage collection device in some embodiments of the present invention Figure 4 ;

[0037] Figure 9 Flowchart of the control method for the sewage collection device in some embodiments of the present invention Figure 5 ;

[0038] Figure 10 Flowchart of the control method for the sewage collection device in some embodiments of the present invention Figure 6 .

[0039] Icon:

[0040] 100. Sewage collection device;

[0041] 10. Liquid storage tank;

[0042] 11. First tank part; 111. First bottom wall; 112. First side wall; 113. First top wall; 11a. Sewage inlet;

[0043] 12. Second tank part; 121. Second bottom wall; 122. Second side wall; 1221. First wall part; 1222. Second wall part; 12a. Sewage outlet; 1201. Box body part;

[0044] 10a. Mounting hole; 10b. Embedded groove;

[0045] 20. Filter component;

[0046] 30. Sewage agitation component;

[0047] 31. Agitation piece; 32. Rotating shaft; 33. Sealing member; 331. First sealing part; 332. Second sealing part; 34. Rotation driving member; 341. Motor; 342. First runner; 343. Second runner; 344. Flexible transmission member; 345. Bracket; 35. Mounting seat; 36. Limiting member. Detailed implementation manners

[0048] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals designate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0050] In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features, used to distinguish and describe features, without order or importance.

[0051] In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0053] Next, refer to Figures 1 - 3 to describe the sewage collection device 100 of the embodiments of the present invention.

[0054] As Figures 1 to 3As shown, the sewage collection device 100 according to an embodiment of the present invention includes: a liquid storage tank 10, a filtering component 20, and a sewage agitation component 30. The liquid storage tank 10 includes a first tank portion 11 and a second tank portion 12. The first tank portion 11 is provided with a sewage inlet 12a. The first tank portion 11 includes a first bottom wall 111 that slopes downward. The second tank portion 12 is provided at the lowest position of the first bottom wall 111 and is in communication with the first bottom wall 111. The second tank portion 12 is provided with a sewage discharge port 12a that can be opened or closed. The filtering component 20 is provided in the first tank portion 11 and is in communication with the sewage inlet 11a. The sewage agitation component 30 is provided on the first tank portion 11 or the second tank portion 12 to agitate the liquid in the liquid storage tank 10.

[0055] The liquid storage tank 10 refers to a container for storing sewage. The "sewage" mentioned can refer to a liquid containing particles such as, but not limited to, garbage, sediment, dirt, etc. The liquid storage tank 10 can be, but is not limited to, made of plastic, stainless steel, glass, etc. In the above solution, the liquid storage tank 10 can be divided into two parts, namely, including a first tank portion 11 and a second tank portion 12. The sewage inlet 12a, as the inlet of the entire liquid storage tank 10, can be provided on the first tank portion 11. The sewage discharge port 12a, as the outlet for discharging the sewage inside the entire liquid storage tank 10, can be provided on the second tank portion 12. The sewage discharge port 12a can be provided with a valve structure that can be opened or closed. The valve structure can be, but is not limited to, a manual valve or a control valve, etc. The control valve can be, but is not limited to, an electromagnetic valve, etc.

[0056] The "first bottom wall 111 that slopes downward" can refer to Figure 1 the up and down direction. That is to say, the first bottom wall 111 is not horizontally arranged, but presents a certain inclination angle, and this inclined direction is downward. The first bottom wall 111 can be an inclined tank wall or a V-shaped tank wall.

[0057] The filtering component 20 can refer to a component that can play a filtering role, and can be, but is not limited to, a filter basket, a filter net, etc. The filtering component 20 can prevent larger-sized dirt and other particles from entering the liquid storage tank 10, reducing the probability of the larger-sized dirt and other particles blocking the sewage discharge port 12a.

[0058] The sewage agitation component 30 can refer to a component that can agitate or vibrate the sewage inside the liquid storage tank 10, and can be, but is not limited to, a stirring mechanism, an ultrasonic vibration mechanism, an eccentric wheel mechanism, etc. The movement mode of agitating the sewage in the liquid storage tank 10 can be, but is not limited to, rotational movement, reciprocating rotational movement, up and down vibration, etc. The sewage agitation component 30 can be provided on the first tank portion 11 or the second tank portion 12. The first tank portion 11 and the second tank portion 12 can also be both provided with the sewage agitation component 30.

[0059] In the above technical solution, since the filtering component 20 is communicated with the sewage inlet 11a, after the sewage enters from the sewage inlet 11a, it is first filtered by the filtering component 20, which can prevent particulate matters such as dirt with larger sizes from entering the first tank portion 11, and reduce the risk of the particulate matters such as dirt with larger sizes blocking the sewage outlet 12a. After filtering out a part of the particulate matters, because "the second tank portion 12 is arranged at the lowest position of the first bottom wall 111 and is communicated with the first bottom wall 111", a stepped structure can be formed between the second tank portion 12 and the first bottom wall 111. The size of the second tank portion 12 is smaller than that of the first tank portion 11. The sewage first enters the first tank portion 11. Under the action of gravity, particulate matters such as dirt, sediment, and garbage can flow downward along the inclined first bottom wall 111 and gather into the second tank portion 12 with a smaller volume, which can reduce the probability of the particulate matters such as dirt, sediment, and garbage adhering to the first bottom wall 111, that is, reduce the wall area of the tank adhering to the particulate matters such as dirt and sediment. Moreover, compared with the first tank portion 11, since the volume of the second tank portion 12 is smaller, a liquid level height difference can be formed between the first tank portion 11 and the second tank portion 12. The pressure of the sewage in the second tank portion 12 is relatively large. When the sewage outlet 12a is opened for sewage discharge, the sewage discharge from the sewage outlet 12a can be accelerated, and it is beneficial for the particulate matters such as sediment, garbage, and sediment to rush out of the sewage outlet 12a, which can relieve the accumulation of the particulate matters such as sediment, garbage, and sediment inside the liquid storage tank 10.

[0060] In addition, the sewage stirring component 30 can stir the sewage in the liquid storage tank 10, so that the particulate matters such as dirt and sediment are remixed with the sewage and suspended, avoiding the particulate matters such as dirt and sediment from depositing on the walls of the first tank portion 11 and the second tank portion 12. Thereby, the particulate matters such as dirt and sediment can be smoothly discharged through the sewage outlet 12a, which is beneficial to discharging the dirt inside the liquid storage tank 10 completely and improving the sewage discharge effect.

[0061] The sewage collection device 100 according to an embodiment of the present invention can filter large-sized particulate matters through the filtering component 20 and enter the liquid storage tank 10. By configuring the liquid storage tank 10 into a special-shaped structure composed of a first tank portion 11 and a second tank portion 12, the adhesion area of particulate matters such as dirt and sediment can be reduced, and the particulate matters such as dirt and sediment can be centrally settled in the second tank portion 12 with a smaller volume, which is beneficial to accelerating the sewage discharge speed and also beneficial to discharging particulate matters such as sediment and garbage with a larger volume. The sewage stirring component 30 can stir the movement of the sewage, so that the particulate matters such as dirt and sediment are mixed with the sewage into a suspended state, which is beneficial to completely discharging the particulate matters such as dirt and sediment from the liquid storage tank 10. That is to say, through the coordinated cooperation of the filtering component 20, the liquid storage tank 10 and the sewage stirring component 30, using the sewage collection device 100 can reduce the risk of blockage of the sewage discharge port 12a by particulate matters such as sediment and garbage, which is beneficial to the liquid storage tank 10 to drain out particulate matters such as sediment and garbage completely, improve the sewage discharge effect, and moreover, the sewage collection device 100 can reduce the water consumption while ensuring a good sewage discharge effect, which is beneficial to saving water resources.

[0062] In some embodiments of the present invention, as Figure 1 shown, the second tank portion 12 includes a second bottom wall 121 and a second side wall 122. The second side wall 122 is circumferentially arranged around the second bottom wall 121, and in the direction from top to bottom, the width of the area surrounded by the second side wall 122 gradually decreases.

[0063] The "direction from top to bottom" can be referred to Figure 1 . The second side wall 122 is continuously arranged around the four sides of the second bottom wall 121 to form a closed ring structure, and this ring structure can be but is not limited to a circular ring shape, a square ring shape, etc. Exemplarily, when observing from the top to the bottom of the second tank portion 12, the size of the space surrounded by the second side wall 122 in the left-right direction gradually becomes smaller as the height decreases. The second tank portion 12 can be but is not limited to a frustum of a cone, a frustum of a pyramid or other similar shapes.

[0064] The "width of the area surrounded by the second side wall 122 gradually decreases" can be understood as that the second side wall 122 can be composed of multiple wall surfaces, and at least one wall surface is inclined or curved. For example, all the wall surfaces of the second side wall 122 are inclined or curved, so that the second side wall 122 as a whole can be in a conical shape, a frustum of a pyramid shape, etc. One of the multiple wall surfaces of the second side wall 122 can also be inclined or curved, and the other wall surfaces can be vertical wall surfaces.

[0065] In the above technical solution, the second tank portion 12 is a box body with a reduced structure. The structure with a wider top and a narrower bottom makes the space of the second tank portion 12 gradually narrow, and the particulate matters such as garbage, dirt or sediment flowing from the first tank portion 11 into the second tank portion 12 are more likely to gather at the bottom of the second tank portion 12 under the action of gravity, which is convenient for subsequent centralized treatment and discharge of the dirt.

[0066] In some embodiments of the present invention, as Figure 1 shown, the second side wall 122 is an arc-shaped wall or an inclined wall.

[0067] That is to say, the second side wall 122 may present a curved arc, which may be a regular circular arc surface, such as a part of a cylindrical surface or a conical surface, or may be an irregular arc-shaped curved surface. The second side wall 122 may also not be perpendicular to the second bottom wall 121 or the horizontal plane, but have a certain angle with the vertical direction or the horizontal direction, showing an inclined state. The inclination angle of the second bottom wall 121 relative to the horizontal plane can be 3 degrees to 60 degrees. The inclined wall can be a plane or a curved surface with a certain radian, but as a whole, it has the characteristic of inclination. It can be uniformly inclined from top to bottom, or may have different inclination angles at different heights.

[0068] In the above technical solution, sewage can flow from the second side wall 122 to the second bottom wall 121 or the sewage discharge port 12a. If the second side wall 122 is an arc-shaped wall, it can make the flow of sewage in the liquid storage tank 10 smoother, reduce the phenomena of vortex and turbulence, lower the flow resistance, improve the overall operation efficiency of the sewage collection device 100, enable the sewage and the impurities therein to flow more quickly in the sewage collection device 100. At the same time, the arc-shaped wall has no sharp corners and edges, which can effectively reduce the dead corner area in the liquid storage tank 10, prevent the solid impurities in the sewage from accumulating and remaining at the corners, reduce the cleaning difficulty, and improve the cleanliness and maintenance convenience of the sewage collection device 100. If the second side wall 122 is an inclined wall, the inclined side wall can utilize the gravity to guide the sewage to the second bottom wall 121 or the sewage discharge port 12a, facilitating the sewage to flow out of the liquid storage tank 10. Moreover, the structure of the inclined wall is relatively simple, easy to process and manufacture, and can reduce the manufacturing cost.

[0069] In some embodiments of the present invention, as Figure 1 shown, the first tank portion 11 includes a first side wall 112, and the first side wall 112 is circumferentially arranged around the first bottom wall 111; the second side wall 122 includes a first wall portion 1221 and a second wall portion 1222 which are oppositely arranged, the first wall portion 1221 is connected to the first side wall 112 and is inclined towards the side close to the second wall portion 1222 relative to the first side wall 112, and the second wall portion 1222 is connected to the first bottom wall 111.

[0070] The first side wall 112 surrounds the edge of the first bottom wall 111 and is continuously arranged along the circumferential direction, forming a closed or semi-closed space structure to enclose the periphery of the first bottom wall 111. The first side wall 112 and the first bottom wall 111 together form a region with a certain shape and space. The first tank portion 11 formed by the first side wall 112 and the first bottom wall 111 can be but not limited to circular, rectangular, frustum-shaped, etc.

[0071] In the above technical solution, since the first wall portion 1221 is connected to the first side wall 112 and the second wall portion 1222 is connected to the first bottom wall 111, the second tank portion 12 is located on one side of the first tank portion 11. When the sewage stirring member 30 stirs the sewage to make a rotational motion, the speed of the outermost side is relatively large, and particulate matters such as sediment and dirt can settle more into the second tank portion 12 under the action of gravity, which is beneficial to the second tank portion 12 to collect particulate matters such as sediment and dirt. Moreover, the first side wall 112 and the first bottom wall 111 are opposite to each other and are arranged obliquely, thereby guiding the sewage to flow along the wall surface direction, forming a shear force, destroying the adhesion force between the sediment and the wall surface, and also prolonging the contact time between the sewage and the wall surface, enhancing the scouring effect, and further reducing the risk of particulate matters such as sediment adhering to the first side wall 112, reducing the accumulation of particulate matters such as sediment on the first side wall 112, facilitating the cleaning of the first side wall 112, and discharging the sediment, dirt and other particulate matters inside the liquid storage tank 10, improving the sewage discharge effect of the sewage collection device 100.

[0072] In some embodiments of the present invention, as Figure 1 shown, the sewage discharge port 12a is provided on the first wall portion 1221 and is located at the bottom of the first wall portion 1221.

[0073] In the above technical solution, the sewage is discharged through the sewage discharge port 12a. Since the sewage discharge port 12a is located at the bottom of the first wall portion 1221, under the action of gravity, the sewage in the liquid storage tank 10 can flow more smoothly to the sewage discharge port 12a, making the sewage discharge process more natural and efficient, and also facilitating the complete discharge of particulate matters such as sediment and dirt, reducing the occurrence of residual sediment, dirt and other particulate matters, and improving the sewage discharge effect.

[0074] In some embodiments of the present invention, as Figure 1 shown, the second bottom wall 121 is an inclined wall and is inclined relative to the second wall portion 1222 towards the bottom of the first wall portion 1221.

[0075] That is to say, the second bottom wall 121 is not horizontal, but an inclined plane box wall or a curved surface box wall.

[0076] In the above technical solution, the second bottom wall 121 is inclined relative to the second wall portion 1222 towards the bottom of the first wall portion 1221, and the sewage discharge port 12a is located at the bottom of the first wall portion 1221, which can make the sewage flow more smoothly along the direction of the second bottom wall 121 to the sewage discharge port under the action of gravity, facilitating the rapid discharge of the fluid, further improving the sewage discharge efficiency and reducing the residue.

[0077] In some embodiments of the present invention, as Figure 2As shown, the second tank part 12 includes at least two tank body parts 1201 that are connected in sequence in the up and down direction. A step structure is formed between any two adjacent tank body parts 1201. A sewage outlet 12a is provided in one of the at least two tank body parts 1201 that is far from the first tank part 11.

[0078] The step structure refers to a structural form that presents a shape and characteristics similar to steps in an object or space. It is usually composed of multiple planes or platforms with different heights connected by vertical or inclined surfaces. That is to say, the second tank part 12 can be a multi-section tank structure, with each section being a tank body part 1201. In the top-down direction, the widths of the multiple tank body parts 1201 gradually decrease.

[0079] In the above technical solution, the second tank part 12 adopts a multi-section tank structure. And since the sewage outlet 12a is provided on the tank body part 1201 that is far from the first tank part 11, it is beneficial for the aggregation of particulate matters such as sediment and dirt. Moreover, the tank body part 1201 where the sewage outlet 12a is located has a greater liquid level pressure, which is beneficial for accelerating sewage discharge and improving the sewage discharge efficiency.

[0080] In some embodiments of the present invention, as Figure 1 、 Figure 3 and Figure 4 shown, the sewage stirring component 30 includes a stirring member 31, a rotating shaft 32, a sealing member 33, and a rotation driving member 34. The stirring member 31 is arranged inside the liquid storage tank 10. The rotating shaft 32 passes through the tank wall of the liquid storage tank 10 and is connected to the stirring member 31. The sealing member 33 is sealingly arranged between the rotating shaft 32 and the first bottom wall 111. The rotation driving member 34 is arranged outside the liquid storage tank 10 and is connected to the rotating shaft 32.

[0081] The stirring member 31 can refer to a component that can stir the sewage to rotate, and can be but not limited to a stirring impeller, a stirring disc, etc.

[0082] The sealing member 33 can refer to a component that plays a sealing role between the rotating shaft 32 and the tank wall of the liquid storage tank 10, and can be but not limited to a sealing ring, a sealing device, etc.

[0083] The rotation driving member 34 can refer to a component that can output rotational power, and can be but not limited to a motor or a motor assembly, a motor or a motor assembly, etc.

[0084] In the above technical solution, the stirring member 31 is located inside the liquid storage tank. The rotary driving member 34 drives the stirring member 31 to rotate through the rotating shaft 32, which can stir the sewage in the liquid storage tank 10 to rotate. This can cause particulate matters such as sediment and dirt in the sewage to re-mix with the sewage from the sediment state to form a suspended state. Then, when discharging sewage at the sewage outlet 12a, the particulate matters such as sediment and dirt can be carried out of the liquid storage tank 10. Therefore, it is beneficial to achieve thorough sewage discharge, improve the sewage discharge efficiency, and also enhance the sewage discharge effect. Moreover, by using this method of the rotary driving member 34 driving the stirring member 31 to rotate and then driving the sewage to move in a rotational motion, the stirring method of the sewage is easy to implement, which can reduce the manufacturing cost. And this method of realizing sewage stirring has relatively low energy consumption, which is beneficial to maintaining long-term operation at a relatively low energy consumption.

[0085] Optionally, the stirring member 31 can adopt a multi-blade structure, and the shape of the blade is designed as a curved surface with a certain arc, such as a parabolic shape or a hyperbolic shape. This shape can more efficiently push the sewage when rotating, generating a stronger water flow turbulence effect.

[0086] Optionally, the rotating shaft 32 can be made of high-strength alloy steel and subjected to surface hardening treatment, such as carburizing, nitriding and other processes. This can significantly improve the wear resistance and fatigue strength of the rotating shaft 32, ensuring that the rotating shaft 32 will not break due to wear or fatigue during long-term high-load operation.

[0087] In some embodiments of the present invention, such as Figure 3 and Figure 4 As shown, the box wall of the liquid storage tank 10 is provided with an installation hole 10a. The sewage stirring component 30 includes an installation seat 35. The installation seat 35 is arranged on the outer side of the box wall of the liquid storage tank 10 and is partially fitted in the installation hole 10a. The rotating shaft 32 is arranged on the installation seat 35. Compared with the relatively thin box wall, the installation seat 35 can provide a greater installation height, increase the installation contact surface of the rotating shaft 32, and provide a better supporting effect. Therefore, the installation reliability of the rotating shaft 32 can be improved.

[0088] Optionally, the box wall of the liquid storage tank 10 is provided with a groove 10b recessed toward the side close to the stirring member 31, and the installation seat 35 is fitted in the groove 10b. It can be understood that the installation seat 35 is installed and fitted with the liquid storage tank 10 through the groove 10b. Doing so can increase the joint surface between the installation seat 35 and the liquid storage tank 10, thereby improving the connection reliability between the two, and further improving the installation reliability of the rotating shaft 32.

[0089] In some embodiments of the present invention, such as Figure 3 and Figure 4As shown, the seal 33 includes a first seal portion 331 and a second seal portion 332. The first seal portion 331 is provided between the rotating shaft 32 and the wall of the mounting base 35, and the second seal portion 332 is provided between the mounting base 35 and the wall of the liquid storage tank 10. Optionally, the first seal portion 331 and the second seal portion 332 may be sealing rings.

[0090] By setting the seal 33 to include the first seal portion 331 and the second seal portion 332, the seal 33 can achieve two-stage sealing. On the one hand, it can reduce the risk of leakage between the sewage rotating shaft 32 and the mounting base 35, and on the other hand, it can also reduce the risk of sewage leakage between the liquid storage tank 10 and the mounting base 35, which can improve the sealing reliability of the rotating shaft 32.

[0091] In some embodiments of the present invention, as Figure 3 and Figure 4 shown, the sewage stirring member 30 includes a limiting member 36. The limiting member 36 is provided on the rotating shaft 32 and abuts against the mounting base 35. The mounting base 35 can be fixed between the liquid storage tank 10 and the rotating shaft 32 through the limiting member 36. This way of fixing the mounting base 35 is relatively simple, can reduce costs, and is convenient for later maintenance and replacement. Optionally, the limiting member 36 can be but is not limited to a snap ring, a bolt, etc.

[0092] In some embodiments of the present invention, as Figure 3 and Figure 4 shown, the rotary drive member 34 includes a motor 341, a first runner 342, a second runner 343, a flexible transmission member 344, and a bracket 345. The bracket 345 is provided on the liquid storage tank 10, the motor 341 is provided on the bracket 345, the first runner 342 is provided on the motor shaft of the motor 341, the second runner 343 is provided on the rotating shaft 32, and one end of the flexible transmission member 344 is sleeved on the first runner 342, and the other end is sleeved on the second runner 343.

[0093] The flexible transmission member 344 can be but is not limited to a transmission belt, a transmission chain, a transmission rope, etc., and no specific limitation is made here.

[0094] In the above technical solution, the first runner 342, the second runner 343, and the flexible transmission member 344 constitute a flexible transmission mechanism. The motor 341 can transmit power to the rotating shaft 32 through the flexible transmission mechanism, thereby driving the stirring member 31 to rotate. The rotary drive member 34 with this structure has a relatively simple structure, stable and reliable transmission, which is beneficial to improving the working reliability of the entire sewage stirring member 30. Moreover, the energy consumption of this motor drive method is relatively low, and it can work for a long time with less energy consumption.

[0095] In some embodiments of the present invention, as Figure 1As shown in the figure, the first tank part 11 includes a first side wall 112 and a first top wall 113. The first side wall 112 is circumferentially arranged around the first bottom wall 111, and the first top wall 113 connects the first side wall 112 and the first bottom wall 111; the sewage stirring member 30 is provided on at least one of the first bottom wall 111, the first side wall 112, and the first top wall 113.

[0096] The sewage stirring member 30 can be one, and can be provided on the first bottom wall 111, can also be provided on the first side wall 112, or can also be provided on the first top wall 113. The sewage stirring member 30 can also be provided in multiple numbers. At this time, two or more of the first bottom wall 111, the first side wall 112, and the first top wall 113 can be provided with the sewage stirring member 30.

[0097] In the above technical solution, when the sewage stirring member 30 is provided on the first bottom wall 111, the rotation of the stirring member 31 can directly act on the sewage near the bottom. The first bottom wall 111 is often the place where sediment, dirt and other particulate matters precipitate and accumulate. The stirring member 31 can effectively disperse the precipitate, accelerate the separation of sediment, dirt and other particulate matters from the first bottom wall 111, make the sediment, dirt and other particulate matters re-suspend in the sewage, and with the water flow circulation, be evenly distributed throughout the first tank part 11, ensuring that all parts of the sewage are fully mixed, and then can discharge sewage more thoroughly, improve the sewage discharge efficiency, and enhance the sewage discharge effect. If it is provided on the first side wall 112, the water flow generated by the stirring member 31 can be used to push the sewage on the inner side surface of the liquid storage tank 10 to flow, avoiding the water flow dead angle near the first side wall 112, and cooperating with the water flow circulation of the first bottom wall 111 and the first top wall 113, further enhancing the uniformity of the overall stirring. When installed on the first top wall 113, it can drive the sewage to flow from top to bottom, forming a convection with the water flow generated by the first bottom wall 111 and the first side wall 112, and promoting the sewage mixing in all directions. By adopting the above scheme, the sewage stirring member 30 can be set at different positions according to needs to meet different use requirements.

[0098] In some embodiments of the present invention, the filtering member 20 is detachably provided on the first tank part 11. By setting the filtering member 20 to be detachable, large particulate matters such as garbage and dirt in the filtering member 20 can be regularly cleaned, thereby ensuring that the filtering member 20 can be in the best working state for a long time and ensuring the filtering ability.

[0099] A cleaning device according to an embodiment of the present invention includes the sewage collection device 100 of any one of the previous embodiments.

[0100] The cleaning device can refer to mechanical equipment or tools used for cleaning various environments, object surfaces or removing dirt, impurities, etc., and can be but not limited to floor washing machines, vacuum cleaners, pipeline cleaning machines, air purifiers, etc. The cleaning device can also refer to various cleaning robots, for example, shopping mall cleaning robots or household cleaning robots, etc.

[0101] Other components and operations of the cleaning device according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail here. During the cleaning process, the cleaning device can collect sewage containing particulate matters such as sediment, garbage, dust, debris, and hair through the sewage inlet 11a into the sewage collection device 100, avoiding the spread of pollutants in the cleaning area and ensuring the orderly progress of the cleaning work.

[0102] For the cleaning device according to the embodiments of the present invention, since the sewage collection device 100 has a good sewage discharge effect, can discharge internal dirt and other particulate matters more thoroughly, and can also reduce the water consumption, it can thereby reduce the cleaning frequency of the cleaning device itself, reduce the number of manual cleanings or avoid manual cleaning, which is conducive to realizing the automatic sewage discharge of the sewage collection device 100. Moreover, it can also reduce the cleaning water consumption, ensure that there is more sufficient water when the cleaning device cleans surfaces such as the ground, and improve the user experience.

[0103] The following Figures 5 to 10 describes the control method of the sewage collection device 100 according to the embodiments of the present invention.

[0104] As Figure 5 shown, the control method of the sewage collection device 100 according to the embodiments of the present invention includes the sewage collection device 100 in any of the previous embodiments, and the method includes: regularly starting the sewage stirring component 30 to stir the sewage inside the liquid storage tank 10.

[0105] Regularly starting means turning on the sewage stirring component 30 at a preset fixed time interval to perform a stirring operation on the sewage in the liquid storage tank 10.

[0106] In the above technical solution, regularly starting the sewage stirring component 30 to stir the sewage can keep the sewage inside the liquid storage tank 10 in a "moving state", avoiding sediment, dirt and other particulate matters from depositing on the inner wall of the liquid storage tank 10 to form stubborn attachments. It can also enhance the fluidity of the sewage, increase the kinetic energy of the sewage during the sewage discharge process. When the sewage discharge port 12a is opened, the sewage with better fluidity can be discharged from the liquid storage tank 10 more smoothly, improving the sewage discharge speed and efficiency, reducing the sewage discharge time and the amount of residual sewage. For some stubborn impurities attached to the side wall or bottom wall of the liquid storage tank 10, the water flow impact force generated by the sewage stirring component 30 can loosen them and bring them into the sewage flow, and they will be discharged from the liquid storage tank 10 along with the sewage discharge process, thereby achieving a more thorough sewage discharge effect and keeping the inside of the liquid storage tank 10 clean. Using the above method can reduce the water consumption while achieving the same cleaning effect, and can also reduce or eliminate the need for manual participation, which is conducive to the automatic sewage discharge of the sewage collection device 100.

[0107] In some embodiments of the present invention, as Figure 5As shown, the control method of the sewage collection device 100 includes: detecting the liquid level height inside the liquid storage tank 10, and adjusting the working mode and working time of the sewage agitation component 30 according to the liquid level height.

[0108] The liquid level height may refer to the liquid level of the sewage in the liquid storage tank 10. A liquid level detection component can be arranged inside the liquid storage tank 10 for detecting the liquid level height of the sewage. The liquid level detection component can be, but is not limited to, a liquid level sensor, etc.

[0109] The sewage collection device 100 can be provided with a control element (such as a central controller, etc.) to receive the detection information of the liquid level detection component and control the sewage agitation component 30. This control element can also be arranged in the cleaning device, and the controller of the cleaning device uniformly controls the operation of the sewage agitation component 30.

[0110] In the above technical solution, by detecting the liquid level height inside the liquid storage tank 10, the working mode and time of the sewage agitation component 30 can be adjusted at different liquid level heights, ensuring that the sewage is fully mixed in the liquid storage tank 10, preventing the situation that due to the change of the liquid level, the water quality is uneven and the solid impurities will gradually settle to the bottom of the liquid storage tank 10 under the action of gravity, and thus preventing the blockage of the sewage discharge port 12a of the sewage collection device 100, which affects the normal sewage discharge operation. Moreover, for the situations where the liquid level height of the sewage in the liquid storage tank 10 is relatively low and relatively high, the working mode and time of the sewage agitation component 30 can be adaptively adjusted, which is beneficial to reducing energy consumption while meeting the agitation effect, as well as the vibration and noise caused by the operation of the sewage agitation component 30, and can improve the user experience.

[0111] In some embodiments of the present invention, as Figure 6 shown, the steps of detecting the liquid level height inside the liquid storage tank 10 and adjusting the working mode and working time of the sewage agitation component 30 according to the liquid level height include:

[0112] When the detected liquid level height inside the liquid storage tank 10 is at the first threshold, control the sewage agitation component 30 to work continuously for the first set time;

[0113] When the detected liquid level height inside the liquid storage tank 10 is at the second threshold, control the sewage agitation component 30 to work intermittently for the second set time, where the second threshold is less than the first threshold.

[0114] The first threshold and the second threshold can refer to specific liquid level height values or liquid level height range values, but the first threshold and the second threshold are not the same, and the second threshold is less than the first threshold.

[0115] The first set time and the second set time can also refer to specific time values, for example, 10 seconds, 2 minutes, etc., without specific limitations here. "Controlling the sewage stirring component 30 to work intermittently for the second set time" can mean that the sewage stirring component 30 can work at a certain frequency within the second set time. For example, it works for the fourth set time after every interval of the third set time, and both the fourth set time and the third set time are less than the second set time.

[0116] It should be noted that in the above scheme, the first threshold, the second threshold, the first set time, and the second set time can be selected and set as needed.

[0117] In the above technical solution, since the second threshold is less than the first threshold, when the liquid level height is at the lower second threshold, the sewage stirring component 30 is controlled to work intermittently for the second set time. This means that when the amount of sewage is relatively small, the sewage stirring component 30 does not operate continuously but works in an intermittent manner, avoiding unnecessary energy consumption. Compared with continuous operation, intermittent operation can significantly reduce power consumption and save operating costs. When the liquid level height reaches the higher first threshold, that is, when the amount of sewage is large, it is controlled to work continuously for the first set time to ensure there is enough power to fully stir the sewage, ensuring the treatment effect while not over-consuming energy, achieving reasonable distribution and efficient utilization of energy. Whether the sewage stirring component 30 is in intermittent operation or continuous operation, it can keep the sewage in a moving state, preventing particulate matters such as sediment and dirt in the sewage from depositing on the side wall or bottom wall of the liquid storage tank 10.

[0118] In some embodiments of the present invention, as Figure 7 shown, the control method of the sewage collection device 100 includes: when the sewage collection device 100 needs to discharge sewage, controlling the sewage collection device 100 to operate in a sewage discharge mode, and the sewage discharge mode includes:

[0119] Starting the sewage stirring component 30;

[0120] Opening the sewage discharge port 12a;

[0121] After emptying the sewage in the liquid storage tank 10, closing the sewage discharge port 11a.

[0122] When the sewage collection device 100 does not need to discharge sewage, the sewage stirring component 30 can be started regularly to prevent particulate matters such as sediment and dirt from depositing on the tank wall of the liquid storage tank 10 for a long time to form stubborn attachments. When the sewage collection device 100 enters the sewage discharge mode, regardless of whether the sewage stirring component 30 is in the regular start program or not, the sewage stirring component 30 needs to be started immediately. After stirring the sediment, dirt and other particulate matters inside the liquid storage tank 10 to remix with the sewage to form a suspended mixture, then opening the sewage discharge port 12a to let the sewage flow out of the empty liquid storage tank 10, and finally closing the sewage discharge port 11a.

[0123] In the above technical solution, the sewage stirring component 30 is started to make the sewage that may have precipitated or stratified in the liquid storage tank 10 return to a flowing and mixed state again. For impurities such as sediment and solid particles deposited at the bottom, stirring can suspend them and keep the sewage in a flowing state. Then, after the sewage discharge port 12a is opened, the sewage can flow out of the liquid storage tank 10 faster, and finally the sewage discharge port 12a is closed.

[0124] In some embodiments of the present invention, as Figure 8 shown, the steps of starting the sewage stirring component 30 include:

[0125] Detect the liquid level height in the liquid storage tank 10;

[0126] When the liquid level height is at the third threshold, control the sewage stirring component 30 to operate at the first speed;

[0127] When the liquid level height is at the fourth threshold, control the sewage stirring component 30 to operate at the second speed, where the fourth threshold is less than the third threshold, and the second speed is less than the first speed.

[0128] The third threshold and the fourth threshold can refer to specific liquid level height values or liquid level height range values, but the third threshold and the fourth threshold are not the same.

[0129] The first speed and the second speed can refer to specific speed values or speed ranges. Among them, according to the different movement forms of the sewage stirring component 30, the first speed and the second speed can refer to different types of movement speeds. For example, when the sewage stirring component 30 stirs the sewage by rotation, the first speed and the second speed can be rotational speeds; when the sewage stirring component 30 stirs the sewage by oscillation, the first speed and the second speed can refer to vibration rates.

[0130] It should be noted that in the above solution, the third threshold, the fourth threshold, the first speed, and the second speed can be selected and set as needed. The operating times of the first speed and the second speed can also be set as needed. For example, the sewage stirring component 30 can operate at the first speed for the fifth set time, and the sewage stirring component 30 can operate at the second speed for the sixth set time. The fifth set time and the sixth set time can be, but are not limited to, 10 seconds, 2 minutes, and so on.

[0131] In the above technical solution, when starting the sewage agitation component 30 for sewage discharge, the operating speed of the sewage agitation component 30 can be adjusted according to the liquid level height inside the liquid storage tank 10. When the liquid level inside the liquid storage tank 10 is at a relatively high third threshold, the sewage agitation component 30 can operate at a relatively high first speed, so as to achieve high-speed operation, strongly clean the side wall or bottom wall of the liquid storage tank 10, which is beneficial to better form a suspension mixture of sediment, dirt and other particulate matters and more sewage. When the liquid level inside the liquid storage tank 10 is at a relatively low fourth threshold, the sewage agitation component 30 can operate at a relatively low second speed, which can reduce energy consumption while meeting the formation of a suspension mixture of sediment, dirt and other particulate matters and sewage, and reduce vibrations or noises generated due to excessive speed.

[0132] In some embodiments of the present invention, as Figure 9 shown, the sewage discharge mode further includes: performing secondary sewage discharge, and the steps of secondary sewage discharge include:

[0133] Injecting a flushing liquid into the liquid storage tank 10 until the liquid level height inside the liquid storage tank 10 reaches a fifth threshold;

[0134] Starting the sewage agitation component 30;

[0135] Opening the sewage discharge port 12a;

[0136] After emptying the sewage inside the liquid storage tank 10, closing the sewage discharge port 12a. The flushing liquid refers to a liquid used for cleaning and flushing the inside of a specific device or container, which can be but is not limited to clean water, acid solution, alkali solution, surfactant solution, etc. The liquid storage tank 10 can be provided with a cleaning port, and a control valve is provided at the cleaning port, and the control valve can be opened when it is necessary to inject the flushing liquid, so that the cleaning port can supplement the flushing liquid into the liquid storage tank 10.

[0137] The fifth threshold can refer to a specific liquid level height value or a liquid level height range value.

[0138] In the above technical solution, injecting the flushing liquid into the liquid storage tank 10 to the fifth threshold can soak and flush the stubborn impurities attached to the inner wall and bottom of the liquid storage tank 10. Then, after starting the sewage agitation component 30, the rotating agitation member 31 generates a water flow impact force to further flush all corners of the liquid storage tank 10. Finally, after opening the sewage discharge port 12a, the stubborn impurities soaked and loosened by the flushing liquid are discharged from the liquid storage tank 10 together with the flushing liquid, so that the sewage discharge process can not only discharge conventional sewage, but also effectively remove difficult-to-treat impurities, improving the sewage discharge quality. That is to say, by secondary cleaning the liquid storage tank 10, the internal sediment, dirt, sediment or garbage and other particulate matters can be further cleaned, which is beneficial to thoroughly cleaning the dirt inside the liquid storage tank 10, improving the cleaning effect inside the liquid storage tank 10, and when using clean water to flush the liquid storage tank 10, adopting the above scheme can reduce the water consumption while ensuring the cleaning effect, thereby saving water resources.

[0139] In some embodiments of the present invention, as Figure 10 shown, the sewage discharge mode further includes:

[0140] Repeatedly execute the steps of secondary sewage discharge at least twice.

[0141] In the above method, the steps of secondary sewage discharge can be set to be carried out twice, three times, etc. according to the user's needs, or can be set by the user according to their own needs, which will not be elaborated here.

[0142] In the above technical solution, the first sewage discharge may remove most obvious residual impurities and stains, but there may still be some stubborn impurities adhering to the corners, gaps or the inner wall of the liquid storage tank 10 and being difficult to be completely removed. Repeatedly executing the steps of secondary sewage discharge, each time injecting the flushing liquid and starting the sewage stirring component 30, can further soak, scour and loosen these stubborn impurities. After multiple flushes and stirrings, they can be more thoroughly dissolved and removed, so that the residual amount of impurities in the liquid storage tank 10 is minimized, and the quality of sewage discharge is improved.

[0143] Next, in combination with Figure 1 , Figure 3 and Figure 4 , a specific embodiment of the sewage collection device 100 of the present invention will be described.

[0144] The sewage collection device 100 includes: a liquid storage tank 10, a filtering component 20, and a sewage stirring component 30.

[0145] The liquid storage tank 10 includes a first tank portion 11 and a second tank portion 12. The first tank portion 11 is provided with a sewage inlet 12a. The first tank portion 11 includes a first bottom wall 111 inclined downward and a first side wall 112. The first side wall 112 is circumferentially arranged around the first bottom wall 111. The second tank portion 12 is arranged at the lowest position of the first bottom wall 111 and is communicated with the first bottom wall 111. The second tank portion 12 is provided with an openable or closable sewage discharge port 12a. The second tank portion 12 includes a second bottom wall 121 and a second side wall 122. The second side wall 122 is circumferentially arranged around the second bottom wall 121, and in the direction from top to bottom, the width of the area surrounded by the second side wall 122 gradually decreases. The sewage discharge port 12a is arranged on the first wall portion 1221 and is located at the bottom of the first wall portion 1221.

[0146] The filtering component 20 is arranged in the first tank portion 11 and is communicated with the sewage inlet 11a.

[0147] The sewage agitation member 30 is provided on the first bottom wall 111 of the first tank portion 11 to agitate the liquid in the liquid storage tank 10. The sewage agitation member 30 includes an agitation member 31, a rotating shaft 32, a seal member 33, a rotation driving member 34, a mounting seat 35, and a limiting member 36. The agitation member 31 is provided inside the liquid storage tank 10. The rotating shaft 32 penetrates through the first bottom wall 111 and is connected to the agitation member 31. The seal member 33 is hermetically provided between the rotating shaft 32 and the first bottom wall 111. The rotation driving member 34 is provided outside the liquid storage tank 10 and is connected to the rotating shaft 32. The first bottom wall 111 is provided with a mounting hole 10a. The mounting seat 35 is provided outside the tank wall of the liquid storage tank 10, and a part of it is fitted in the mounting hole 10a. The rotating shaft 32 is provided on the mounting seat 35. The seal member 33 includes a first seal portion 331 and a second seal portion 332. The first seal portion 331 is provided between the rotating shaft 32 and the tank wall of the mounting seat 35. The second seal portion 332 is provided between the mounting seat 35 and the tank wall of the liquid storage tank 10. The limiting member 36 is a snap ring and is provided on the rotating shaft 32 and abuts against the mounting seat 35.

[0148] The rotation driving member 34 includes a motor 341, a first runner 342, a second runner 343, a flexible transmission member 344, and a bracket 345. The bracket 345 is provided on the liquid storage tank 10. The motor 341 is provided on the bracket 345. The first runner 342 is provided on the motor shaft of the motor 341. The second runner 343 is provided on the rotating shaft 32. The flexible transmission member 344 is a transmission belt, and one end of it is sleeved on the first runner 342, and the other end is sleeved on the second runner 343.

[0149] When the above sewage collection device 100 is in use, it can be operated according to the following method:

[0150] During daily operation, the sewage agitation member 30 can be periodically started to agitate the sewage inside the liquid storage tank 10, and the liquid level height inside the liquid storage tank 10 can be detected. According to the liquid level height, the working mode and working time of the sewage agitation member 30 can be adjusted. When the liquid level height inside the liquid storage tank 10 is at the first threshold, the sewage agitation member 30 is controlled to continuously work for the first set time; when the liquid level height inside the liquid storage tank 10 is at the second threshold, the sewage agitation member 30 is controlled to work intermittently for the second set time, where the second threshold is less than the first threshold.

[0151] When the sewage collection device 100 needs to discharge sewage, the sewage collection device 100 can operate in a sewage discharge mode, which specifically includes: starting the sewage agitation member 30; opening the sewage discharge port 12a; after emptying the sewage in the liquid storage tank 10, closing the sewage discharge port 11a.

[0152] Steps to start the sewage agitation component 30 include: detecting the liquid level height in the liquid storage tank 10; when the liquid level height in the liquid storage tank 10 is at the third threshold, controlling the sewage agitation component 30 to operate at the first speed; when the liquid level height in the liquid storage tank 10 is at the fourth threshold, controlling the sewage agitation component 30 to operate at the second speed.

[0153] The sewage discharge mode further includes: performing secondary sewage discharge, and the steps of secondary sewage discharge include: injecting flushing liquid into the liquid storage tank 10 until the liquid level height in the liquid storage tank 10 is at the fifth threshold; starting the sewage agitation component 30; opening the sewage outlet 12a; after emptying the sewage in the liquid storage tank 10, closing the sewage outlet 12a.

[0154] Finally, the user can repeat the steps of secondary sewage discharge at least twice as needed.

[0155] During the entire sewage discharge process, the sewage collection device 100 of the above embodiment can omit a large amount of clear water flushing and cleaning processes. While ensuring a good cleaning effect, it can reduce the amount of clear water used, save water resources, and can also strongly remove the dirt deposited on the side wall and bottom wall of the liquid storage tank 10, which is beneficial to completely discharging particulate matters such as sediment, garbage, and dirt. Moreover, it can reduce or eliminate the need for manual intervention, which is beneficial to solving the problem that the sewage collection device 100 of the cleaning equipment requires manual participation in sewage discharge and is beneficial to realizing the full-process automatic operation of the cleaning equipment.

[0156] In the description of this specification, the description with reference to terms such as "some embodiments", "optionally", "further", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0157] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A sewage collection device, characterized in that, Comprising: A liquid storage tank, the liquid storage tank includes a first tank portion and a second tank portion, the first tank portion is provided with a sewage inlet, the first tank portion includes a first bottom wall inclined downward, the second tank portion is arranged at the lowest position of the first bottom wall and communicates with the first bottom wall, and the second tank portion is provided with an openable or closable sewage discharge port; A filtering component, the filtering component is arranged in the first tank portion and communicates with the sewage inlet; A sewage stirring component, the sewage stirring component is arranged on the first tank portion or the second tank portion to stir the liquid in the liquid storage tank.

2. The sewage collection device according to claim 1, characterized in that, The second tank portion includes a second bottom wall and a second side wall, the second side wall is circumferentially arranged around the second bottom wall, and in the vertical downward direction, the width of the area surrounded by the second side wall gradually decreases; The second side wall is an arc-shaped wall or an inclined wall.

3. The sewage collection device according to claim 2, characterized in that The first tank portion includes a first side wall, the first side wall is circumferentially arranged around the first bottom wall; the second side wall includes a first wall portion and a second wall portion arranged oppositely, the first wall portion is connected to the first side wall and is inclined towards the side close to the second wall portion relative to the first side wall, and the second wall portion is connected to the first bottom wall; The sewage discharge port is arranged on the first wall portion and is located at the bottom of the first wall portion; The second bottom wall is an inclined wall and is inclined towards the bottom of the first wall portion relative to the second wall portion.

4. The sewage collection device according to any one of claims 1 to 3, characterized in that The second tank portion includes at least two tank body portions communicating with each other in the vertical direction in sequence, a step structure is formed between any two adjacent tank body portions, and the sewage discharge port is arranged on the one of the at least two tank body portions far from the first tank portion.

5. The sewage collection device according to any one of claims 1 to 3, characterized in that The sewage stirring component includes a stirring member, a rotating shaft, a sealing member and a rotation driving member, the stirring member is arranged inside the liquid storage tank, the rotating shaft penetrates through the tank wall of the liquid storage tank and is connected to the stirring member, the sealing member is hermetically arranged between the rotating shaft and the first bottom wall, and the rotation driving member is arranged outside the liquid storage tank and is connected to the rotating shaft.

6. The sewage collection device according to any one of claims 1 to 3, characterized in that The first tank portion includes a first side wall and a first top wall, the first side wall is circumferentially arranged around the first bottom wall, and the first top wall is connected to the first side wall and the first bottom wall; the sewage stirring component is arranged on at least one of the first bottom wall, the first side wall and the first top wall.

7. A cleaning device, characterized in that, Including the sewage collection device according to any one of claims 1 to 6.

8. A control method for a sewage collection device, characterized in that, Including the sewage collection device according to any one of claims 1 to 6, the sewage collection device is applied to a cleaning device, and the method includes: Regularly starting the sewage stirring component to stir the sewage inside the liquid storage tank.

9. The control method of the sewage collection device according to claim 8, characterized in that The method includes: detecting the liquid level height inside the liquid storage tank, and adjusting the working mode and working time of the sewage stirring component according to the liquid level height; Wherein, the step of detecting the liquid level height inside the liquid storage tank and adjusting the working mode and working time of the sewage stirring component according to the liquid level height includes: When the liquid level height is at a first threshold value, controlling the sewage stirring component to continuously work for a first set time; When the liquid level height is at the second threshold, control the sewage agitation component to work intermittently for a second set time, where the second threshold is less than the first threshold.

10. The control method of the sewage collection device according to claim 9, characterized in that, The method includes: controlling the sewage collection device to operate in a sewage discharge mode, and the sewage discharge mode includes: Starting the sewage agitation component includes: Detecting the liquid level height in the liquid storage tank; When the liquid level height is at the third threshold, control the sewage agitation component to operate at a first speed; When the liquid level height is at the fourth threshold, control the sewage agitation component to operate at a second speed, where the fourth threshold is less than the third threshold, and the second speed is less than the first speed; Opening the sewage discharge port; After emptying the sewage in the liquid storage tank, closing the sewage discharge port.

11. The control method of the sewage collection device according to claim 10, characterized in that, The sewage discharge mode further includes: performing secondary sewage discharge, and the steps of the secondary sewage discharge include: Injecting a flushing liquid into the liquid storage tank until the liquid level height in the liquid storage tank is at the fifth threshold; Starting the sewage agitation component; Opening the sewage discharge port; After emptying the sewage in the liquid storage tank, closing the sewage discharge port; Wherein, the sewage discharge mode further includes: repeating the steps of the secondary sewage discharge at least twice.

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