Cleaning equipment with good suction stability

Abstract

Cleaning equipment with good suction stability comprises a machine body provided with a dirty liquid barrel and a suction device, the dirty liquid barrel comprises a dirty liquid inlet and a partition plate provided with a liquid passing opening, the partition plate divides the dirty liquid barrel into a first cavity and a second cavity which are communicated with the suction device, and the dirty liquid barrel comprises a first wall located on the back of the machine body and a second wall located on the back of the machine body. The first wall forms a part of the outer surface of the back of the machine body, the solid-liquid separation part comprises a first filtering face opposite to the first wall, and the first filtering face and the first wall are arranged in a spaced mode so that a liquid passing gap can be formed between the first filtering face and the first wall. The first filtering surface is arranged to be opposite to the first wall, so that the flowing rate of liquid in the first interval to the second interval is increased, and the probability that the liquid in the first interval flows backwards into the suction device is reduced; and when the machine body is in an inclined or flat state, liquid in the dirty liquid can be filtered out from other parts of the first filtering surface which are not covered by the solid dirt.

Description

Technical Field

[0001] The present application belongs to the technical field of cleaning appliances, and in particular relates to a cleaning device with good suction stability. Background Art

[0002] Current cleaning equipment, such as floor scrubbers, generally rolls the cleaning surface to be cleaned with a cleaning element, sprays cleaning liquid on the surface to be cleaned to assist in removing dirt, and then uses a suction device to draw the dirty liquid from the suction port into a dirty liquid bucket of the cleaning equipment.

[0003] However, when the user is cleaning, for areas to be cleaned with restricted height, such as under a table or bed, the body needs to be tilted to allow the cleaning parts to pass through. Or when performing maintenance on the cleaning equipment, the body is often tilted. The tilt of the body will cause the dirty liquid in the dirty liquid bucket to shake, which can easily cause the dirty liquid to flow back into the suction device, thereby causing water to enter the suction device, affecting the normal operation of the suction device, and even causing damage to the suction device.

[0004] To address this technical issue, patent publication number CN220442597U discloses the following technical solution: a waste liquid tank is configured to include a first chamber and a second chamber, the first chamber being connected to a sewage suction port and each being provided with a first suction device for drawing waste liquid from the sewage suction port into the first chamber, a second suction device for drawing waste liquid from the first chamber into the second chamber, or a first suction device for drawing waste liquid from the first chamber into the second chamber. This reduces the probability of waste liquid in the first chamber flowing back into the first suction device. A solid-liquid separator is provided in the first chamber. After waste liquid enters the first chamber, solid waste is separated by the solid-liquid separator, and liquid waste enters the second chamber. This reduces the content of liquid waste in the first chamber, reduces the probability of liquid backflowing into the first suction device, and improves the operating stability of the first suction device. However, this technology has the following drawbacks: when the machine body is tilted or even lying flat, the solid-liquid separator is positioned approximately perpendicular to the ground when the machine is lying flat, causing the liquid in the first chamber to slosh most violently and being vertically at a height from the suction port of the suction device. The degree is closest, so when the fuselage is in a flat state, the risk of dirty liquid entering the suction device is the greatest. At this time, the solid dirt in the dirty liquid will fall to the side of the first bin close to the ground under the action of gravity. With the suction action of the liquid inlet, the solid dirt will move to the side of the liquid inlet, thereby blocking the lower end of the solid-liquid separator. Because of the obstruction of this part of the solid dirt, it cannot be sucked into the second bin in time, resulting in the accumulation of dirty liquid in the first bin, thereby increasing the risk of dirty liquid backflowing into the suction device, and the working stability of the suction device cannot be effectively guaranteed. Utility Model Content

[0005] The present application provides a cleaning device with good suction stability to solve the technical problem in traditional cleaning devices that dirty liquid in the first chamber is easily backflowed into the suction device when the body is tilted or lying flat, affecting the working stability of the suction device.

[0006] The technical solutions adopted in this application are:

[0007] A cleaning device with good suction stability includes a body with a dirty liquid barrel and a suction device, the dirty liquid barrel including a sewage inlet and a partition with a liquid passage port, the partition dividing the dirty liquid barrel into a first chamber and a second chamber connected to the suction device, a solid-liquid separator is provided in the first chamber, the solid-liquid separator divides the first chamber into a first section and a second section, the first section is connected to the sewage inlet, the second section is connected to the second chamber through the liquid passage port, the suction device is connected to the second chamber to suck the dirty liquid flowing from the first section to the second section into the second chamber through the liquid passage port, the dirty liquid barrel includes a first wall located on the back of the body, the first wall forming a part of the outer surface of the back of the body, the solid-liquid separator includes a first filtering surface opposite to the first wall, the first filtering surface is spaced apart from the first wall to form a liquid passage gap therebetween.

[0008] The cleaning device described in this application also includes the following additional technical features:

[0009] The solid-liquid separator further includes a second filter surface, the first filter surface is connected to the partition through the second filter surface, the second filter surface is arranged at an angle to the first filter surface and is located on a side of the first filter surface close to the second interval.

[0010] The first filter surface extends along the height direction of the dirty liquid barrel, and an extension surface of the first filter surface toward the partition passes through the liquid outlet.

[0011] The solid-liquid separator also includes a third filter surface located on the side of the first filter surface, and the third filter surface is respectively in contact with the first filter surface and the second filter surface; the second filter surface has a first connection portion directly connected to the partition and a second connection portion connected to the partition through a diverter column, and the first connection portion and the second connection portion are arranged at intervals.

[0012] A guide plate is provided at the liquid outlet, extending obliquely toward the second chamber. The guide plate has a first guide surface connected to the liquid outlet and a second guide surface connected to the first guide surface. The angle between the extension line of the first guide surface and the plane where the liquid outlet is located is α, and the angle between the extension line of the second guide surface and the plane where the liquid outlet is located is β, and α>β.

[0013] A sealing rib is provided between the guide plate and the barrel wall of the sewage liquid barrel. The sealing rib is made of elastic material and has an interference fit with the barrel wall of the sewage liquid barrel. One end of the sealing rib is connected to the guide plate, and the other end extends obliquely toward the direction close to the liquid outlet.

[0014] The partition is provided with a suction port connected to the second cavity, and the suction device is connected to the suction port through a suction channel. The suction port is located at the top of the second cavity when the fuselage is in a lying position; the suction channel has a first channel extending along the length direction of the first cavity and a second channel extending along the width direction of the first cavity that are interconnected. The second channel is located on the side of the first channel away from the ground when the fuselage is in a lying position, and the suction port is located at one end of the second channel away from the first channel.

[0015] It also includes a first liquid-blocking plate arranged around the suction port, one end of the first liquid-blocking plate is connected to the bottom surface of the partition, and the other end extends toward the second cavity, the first liquid-blocking plate separates the suction port from the liquid outlet, and a first liquid level detection component is provided on the side of the first liquid-blocking plate facing the suction port, and the first liquid level detection component is located below the suction port when the fuselage is in a flat position.

[0016] The cleaning equipment also includes a sewage suction pipe connecting the sewage inlet with the first cavity, and a second liquid-blocking plate and a third liquid-blocking plate respectively enclosing a first suction channel. The first suction channel and the second suction channel are respectively connected to the suction device and the first cavity. The first suction channel and the second suction channel are arranged at intervals to form an escape space between the two for the sewage suction pipe to pass through. The second liquid-blocking plate and / or the third liquid-blocking plate are provided with a sealing strip that abuts against the sewage suction pipe.

[0017] The partition also includes a guide portion connected to the liquid outlet, the guide portion is hollow inside to form a flow channel connected to the liquid outlet, the flow channel has a liquid outlet connected to the second cavity at an end away from the liquid outlet, and the liquid outlet is located at the top of the second cavity when the body is in a lying state; or, the first filter surface and the first wall are arranged in an arc shape, or the suction device includes a vacuum fan and an air pump, the vacuum fan is connected to the first cavity, and the air pump is connected to the second cavity.

[0018] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0019] 1. The cleaning device of the present application is provided with a first chamber and a second chamber that are interconnected, and a suction device is used to suck the dirty liquid from the suction port into the first compartment of the first chamber. After the dirty liquid entering the first compartment is separated by the solid-liquid separator, the solid dirt in the dirty liquid is isolated into the first chamber, and the liquid in the dirty liquid enters the second compartment through the solid-liquid separator and enters the second chamber through the liquid outlet, thereby reducing the liquid content in the first chamber and reducing the risk of the liquid in the dirty liquid flowing back into the suction device, thereby providing a guarantee for the working stability of the suction device; in this process, the suction device reduces the air pressure in the second chamber by sucking the gas in the second chamber, so that the liquid in the second compartment can flow into the second chamber more easily, thereby reducing the residence time of the liquid in the first chamber and further reducing the risk of the liquid flowing back into the suction device; in addition, the first filtering surface is arranged to be opposite to the first wall, which increases the area of ​​the first filtering surface, thereby increasing the liquid in the first compartment. The flow rate toward the second section is increased, thereby reducing the probability of liquid in the first section flowing back into the suction device. Moreover, when the body is in a tilted or flat state, solid impurities in the dirty liquid will fall onto the first filter surface under the action of gravity. Even if this causes a certain degree of blockage of the first filter surface, the liquid in the dirty liquid can still be filtered out from the remaining parts of the first filter surface not covered by the solid impurities, thereby reducing the probability that the liquid in the first chamber cannot be discharged in time when the body is tilted, especially in the flat state. Furthermore, since the first filter surface is arranged in alignment with the first wall and a liquid-passing gap is provided between them, the dirty liquid filtered through the first filter surface has sufficient space to move and flows into the liquid-passing port through the liquid-passing gap, thereby preventing the accumulation of liquid after being filtered due to the small space between the first filter surface and the first wall, thereby preventing pressure on the first filter surface and affecting the normal outflow of subsequent liquid, thereby helping to improve the smoothness of the movement of the dirty liquid from the first section to the second section.

[0020] 2. As a preferred embodiment of the present application, by providing a second filter surface connected to the partition and the first curved filter surface respectively, on the one hand, the filtration area of ​​the solid-liquid separator is increased, which helps to enhance the filtration effect of the solid-liquid separator; on the other hand, the second filter surface is arranged at an angle to the first curved filter surface, so that the first curved filter surface and the second filter surface have good filtration performance at different inclination angles of the fuselage. For example, when the fuselage is upright, the solid impurities in the dirty liquid are pressed at the bottom of the second filter surface under the action of gravity, and the liquid in the dirty liquid can flow out from above the second filter surface and the first curved filter surface; and when the fuselage is tilted or lying flat, the solid impurities in the dirty liquid are pressed at the bottom of the first curved filter surface under the action of gravity, and the liquid in the dirty liquid can flow out from above the first curved filter surface and the second filter surface, thereby enhancing the separation speed of the solid-liquid separator for the dirty liquid, expanding the separation angle of the solid-liquid separator for the dirty liquid, and enhancing the filtration performance of the solid-liquid separator for different inclination angles of the fuselage. Furthermore, the second filter surface, in addition to enhancing the filtering effect and separation angle of the solid-liquid separator, further integrates the function of providing an installation position for the first curved filter surface. The functions are further integrated, optimizing the structural design of the cleaning equipment.

[0021] 3. As a preferred embodiment of the present application, the first curved filter surface is configured to extend along the height direction of the dirty liquid barrel, which can provide a larger extension space for the first curved filter surface, enhance the coverage of the first curved filter surface on the first interval, and thus enhance the separation efficiency of the solid-liquid separator; on this basis, since the dirty liquid will at least partially flow along the first curved filter surface due to the wall adhesion effect after being filtered by the solid-liquid separation plate, and gradually slide toward the second chamber under the action of gravity, the extended surface of the first curved filter surface is configured to pass through the liquid outlet, so that this part of the dirty liquid flowing along the outer surface of the first curved filter surface due to the wall adhesion effect can continue to move along the extended surface of the first curved filter surface under the action of inertia after leaving the first curved filter surface, thereby directly entering the liquid outlet or moving to the vicinity of the liquid outlet, greatly increasing the movement rate of the liquid toward the liquid outlet after passing through the first curved filter surface, reducing the probability of the dirty liquid accumulating in the second interval, and improving the discharge rate of the dirty liquid in the first chamber.

[0022] 4. As a preferred embodiment of the present application, by providing a third filter surface, the filtration area and filtration angle of the solid-liquid separator are further enhanced. The liquid in the dirty liquid in the first interval can flow into the second interval at three angles: the first curved filter surface, the second filter surface, and the third filter surface, thereby enhancing the separation efficiency of the solid-liquid separator for the dirty liquid; in addition, a diverter column is provided between the second filter surface and the partition, so that the second filter surface is mounted on the partition through the common support of the first connecting portion and the second connecting portion, thereby improving the connection strength between the second filter surface and the partition and increasing the installation stability of the solid-liquid separator; furthermore, the provision of the diverter column can also play a certain diversion role on the dirty liquid filtered out from the second filter surface. When there is more dirty liquid in the first interval and more dirty liquid flows into the second interval, the dirty liquid passing through the second filter surface is dispersed after passing through the diverter column, thereby reducing the probability of turbulence at the liquid outlet caused by the large volume of dirty liquid.

[0023] 5. As a preferred embodiment of the present application, a guide plate is provided at the liquid outlet to guide the waste liquid flowing from the liquid outlet into the second chamber. This is particularly true for situations where the volume of waste liquid in the second interval is large and the flow rate of the waste liquid through the liquid outlet is large. This large volume of waste liquid may cause turbulence due to the change in direction of movement when passing through the liquid outlet. Furthermore, the waste liquid may impact the walls of the waste liquid barrel during the diversion process, causing an abnormal sound, which is detrimental to the user experience. The provision of the guide plate can smooth the diversion of the waste liquid and prevent the waste liquid flowing from the liquid outlet into the second chamber from hitting the walls of the waste liquid barrel under inertia, causing abnormal sound. Furthermore, the first and second guide surfaces, which are sequentially provided on the guide plate, have angles α and β with the liquid outlet, respectively, with α being greater than β. This allows the waste liquid guided by the guide plate to slowly change its direction of movement, achieving a gradual change in the direction of movement of the waste liquid guided by the guide plate, thereby smoothing the movement of the waste liquid.

[0024] Preferably, a sealing rib is provided between the guide plate and the barrel wall of the sewage liquid barrel, which can improve the sealing between the guide plate and the barrel wall of the sewage liquid barrel and prevent the sewage from seeping out from the gap between the guide plate and the barrel wall. The sealing rib is made of elastic material and has an interference fit with the barrel wall of the sewage liquid barrel, which improves the sealing effect of the sealing rib; at the same time, the arrangement direction of the sealing rib is set to be connected to the guide plate at one end and extend obliquely toward the liquid outlet at the other end, which is convenient for pushing the guide plate into the barrel from one side of the sewage liquid barrel during the assembly process, which helps to reduce the difficulty of assembling the guide plate.

[0025] 6. As a preferred embodiment of the present application, a suction port is provided on the partition, and the suction device draws air from the second chamber through a suction channel connected to the suction port. The suction port is located at the top of the second chamber when the fuselage is in a flat position. This ensures that the dirty liquid in the second chamber is always below the suction port, regardless of whether the fuselage is in an upright position, tilted position, or flat position. This reduces the probability of dirty liquid in the second chamber entering the suction channel through the suction port, thereby improving the operating stability of the suction device. Arranging the suction channel to include the first channel and the second channel allows for more flexible installation positions of the suction channel, reduces the space occupied above the liquid outlet, and requires dirty liquid in the second chamber to enter the suction channel through the suction port located at the top of the second chamber, significantly reducing the possibility of dirty liquid in the second chamber flowing back into the suction channel.

[0026] Preferably, a first liquid-blocking plate is provided at the suction port, which can stop the dirty liquid moving toward the suction port, especially the dirty liquid entering the second chamber from the liquid inlet, which often has a higher kinetic energy. The liquid outlet and the suction port are respectively provided on both sides of the first liquid-blocking plate, which can play a good role in stopping this part of the dirty liquid and reduce the probability of the dirty liquid entering the suction port; in addition, a first liquid level detection component is provided below the suction port, which can detect the liquid level height in the second chamber in real time, prevent the dirty liquid storage in the second chamber from being too high and submerging the suction port, and provide a guarantee for the suction stability of the suction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0028] Figure 1 This is a schematic structural diagram of a cleaning device according to one embodiment of the present application;

[0029] Figure 2 This is a cross-sectional view of a waste liquid barrel in one embodiment of the present application. Figure 1 ;

[0030] Figure 3 for Figure 2 Cross-sectional view of the middle AA section;

[0031] Figure 4 This is a cross-sectional view of a waste liquid barrel in one embodiment of the present application. Figure 2 ;

[0032] Figure 5 This is a schematic diagram of the structure of the lower partition and solid-liquid separator in one embodiment of the present application. Figure 1 ;

[0033] Figure 6This is a cross-sectional view of a waste liquid barrel in one embodiment of the present application. Figure 3 ;

[0034] Figure 7 for Figure 6 A magnified view of part B;

[0035] Figure 8 for Figure 7 Magnified view of part C;

[0036] Figure 9 This is a cross-sectional view of a waste liquid barrel in one embodiment of the present application. Figure 4 ;

[0037] Figure 10 This is a schematic diagram of the structure of the lower partition and solid-liquid separator in one embodiment of the present application. Figure 2 ;

[0038] Figure 11 This is a schematic diagram of the structure of the lower partition and solid-liquid separator in one embodiment of the present application. Figure 3 ;

[0039] Figure 12 This is a schematic diagram of the structure of the lower partition and solid-liquid separator in one embodiment of the present application. Figure 4 ;

[0040] Figure 13 This is a front view of a waste liquid bucket according to one embodiment of the present application;

[0041] Figure 14 This is a schematic diagram of the structure of the lower partition and solid-liquid separator in one embodiment of the present application. Figure 5 ;

[0042] Figure 15 This is a schematic diagram of the structure of the lower partition and solid-liquid separator in one embodiment of the present application. Figure 6 .

[0043] in:

[0044] 1 fuselage;

[0045] 2 sewage barrel, 21 sewage inlet, 22 first cavity, 221 first section, 222 second section, 23 second cavity, 24 first wall, 25 barrel cover, 251 first sealing ring rib;

[0046] 3 liquid outlet;

[0047] 4 solid-liquid separation element, 41 first arc-shaped filter surface, 411 filter through hole, 42 second filter surface, 43 third filter surface;

[0048] 5. Liquid gap;

[0049] 6 partition plate, 61 guide portion, 62 liquid outlet, 63 suction port, 64 second sealing ring rib;

[0050] 7 split column;

[0051] 8 guide plate, 81 first guide surface, 82 second guide surface;

[0052] 9 sealing rib, 91 sealing lip;

[0053] 10 suction channel, 101 first channel, 102 second channel;

[0054] 110 first liquid retaining plate;

[0055] 120 first liquid level detection component;

[0056] 130 second liquid level detection component;

[0057] 140 sewage suction pipe;

[0058] 150 second liquid blocking plate, 1501 first suction channel;

[0059] 160 third liquid retaining plate, 1601 second suction channel;

[0060] 170 sealing strip;

[0061] 180-degree avoidance space;

[0062] 190 avoidance groove;

[0063] 200 floor brush, 2001 cleaning roller;

[0064] 210 fourth liquid barrier plate;

[0065] 220 third liquid level detection component;

[0066] 230 Fourth liquid level detection component. DETAILED DESCRIPTION

[0067] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0068] The following description sets forth many specific details to facilitate a thorough understanding of the present application. However, the present application may also be implemented in other ways than those described herein, and therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features of each embodiment may be combined with each other unless there is a conflict.

[0069] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They 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. Therefore, they cannot be understood as limitations on the present application.

[0070] In this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0071] In this application, unless otherwise expressly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0072] Cleaning equipment includes handheld cleaning machines such as floor scrubbers and vacuum cleaners, and self-propelled cleaning machines such as sweeping and mopping robots and mopping robots. This application uses a floor scrubber as an example to illustrate this solution, but those skilled in the art will understand that this solution can also be applied to any of the above cleaning equipment.

[0073] like Figure 1As shown, the floor scrubber comprises a pivotally connected body 1 and a floor brush 200. The floor brush 200 is equipped with a cleaning roller 2001 and a sewage suction port. The cleaning roller 2001 rolls to clean the surface to be cleaned. During this process, a liquid separator sprays cleaning fluid onto the cleaning roller 2001 to assist in removing dirt. Dirt on the surface to be cleaned mixes with the cleaning fluid, forming a sewage liquid that is drawn into a sewage bucket 2 through the sewage suction port by a suction device. For areas with limited height to be cleaned, such as under tables and beds, the floor scrubber body 1 must be tilted to allow the cleaning roller 2001 to pass. Maintenance of the cleaning equipment often requires tilting the body 1. This tilting of the body 1 causes the sewage in the sewage bucket 2 to slosh. This is especially true when the body 1 is lying flat, where the suction port of the suction device is close to the sewage in the sewage bucket 2. This can easily cause sewage to flow back into the suction device due to the body 1's swaying, affecting its proper function.

[0074] In order to reduce the probability of this phenomenon, a design scheme has been proposed in the prior art: the sewage barrel is set to a first chamber and a second chamber connected to each other, the first chamber is connected to the sewage suction port, and a solid-liquid separator is set in the first chamber. After the sewage enters the first chamber, the solid sewage remains in the first chamber after separation by the solid-liquid separator, and the liquid sewage enters the second chamber, thereby reducing the content of liquid sewage in the first chamber, reducing the probability of liquid backflowing into the suction device, and improving the working stability of the suction device. However, this embodiment still has the following problems: when the fuselage is tilted or even lying flat, the liquid in the first chamber shakes most violently and is closest to the vertical height of the suction port of the suction device. Therefore, when the fuselage is in a lying state, the risk of dirty liquid entering the suction device is the greatest. At this time, solid dirt in the dirty liquid will fall on the solid-liquid separator under the action of gravity, causing blockage of the solid-liquid separator, making it difficult for the liquid in the dirty liquid to pass through the solid-liquid separator, or even impossible to pass through the solid-liquid separator, resulting in accumulation of dirty liquid in the first chamber, thereby increasing the risk of dirty liquid backflowing into the suction device, and the working stability of the suction device cannot be effectively guaranteed.

[0075] In order to improve the working stability of the suction device and further reduce or avoid the probability of dirty liquid flowing back into the suction device, the present application proposes a cleaning device with good suction stability based on the existing technology. The specific implementation plan is as follows: Figures 1 to 3As shown, it includes a body 1 and a floor brush that are pivotally connected. The floor brush is provided with a sewage suction port and a cleaning roller 21. The cleaning roller 21 includes a roller and a cleaning cloth sleeved outside the roller. The cleaning cloth is provided with tufts. A scraper and a water supply port connected to the water supply system are provided above the sewage suction port. A sewage barrel 2 and a suction device are provided inside the body 1. The sewage barrel 2 includes a sewage inlet 21 and a partition 6 with a liquid outlet 3. The partition 6 separates the sewage barrel 2 into a first chamber 22 and a second chamber 23 connected to the suction device. A solid-liquid separator 4 is provided in the first chamber 22. The solid-liquid separator 4 separates the first chamber 22 into a first section 221 and a second section 222. The first compartment 221 is connected to the sewage inlet 21, and the second compartment 222 is connected to the second chamber 23 via the liquid passage port 3. The suction device is connected to the second chamber 23 to suck the sewage flowing from the first compartment 221 to the second compartment 222 into the second chamber 23 through the liquid passage port 3. The sewage barrel 2 includes a first wall 24 located on the back of the body 1, and the first wall 24 forms a portion of the outer surface of the back of the body 1. The solid-liquid separator 4 includes a first filter surface 41 opposite the first wall 24, such that the first filter surface 41 is arranged substantially parallel to the first wall 24, and the first filter surface 41 is spaced apart from the first wall 24 to form a liquid passage gap 5 therebetween.

[0076] exist Figure 2 and Figure 3 The suction device is not shown and its installation position is located at Figure 2 or Figure 3 The top of the dirty liquid barrel 2. And Figure 1 The coordinate system of the movement direction of the cleaning device is given in the specification. The movement direction of the cleaning device in this specification is indicated by this coordinate system. The body 1 being in an inclined state in this specification means that the body 1 is rotating toward the rear.

[0077] The sewage from the sewage suction port is sucked into the first compartment 221 of the first chamber 22 by the suction device. After the sewage entering the first compartment 221 is separated by the solid-liquid separator 4, the solid dirt in the sewage is isolated into the first chamber 22. The liquid in the sewage passes through the solid-liquid separator 4 and enters the second compartment 222 and the second chamber 23 through the liquid port 3. This reduces the liquid content in the first chamber 22 and reduces the risk of the liquid in the sewage flowing back into the suction device, thereby ensuring the working stability of the suction device. During this process, the suction device reduces the air pressure in the second chamber 23 by sucking the gas in the second chamber 23, so that the liquid in the second compartment 222 can flow into the second chamber 23 more easily, thereby reducing the residence time of the liquid in the first chamber 22 and further reducing the risk of the liquid flowing back into the suction device. In addition, the first filter surface 41 is arranged to be opposite to the first wall 24, thereby increasing the area of ​​the first filter surface 41, thereby increasing the flow of the liquid in the first compartment 221 to the second compartment 222. The flow rate is increased, thereby reducing the probability of liquid in the first compartment 221 flowing back into the suction device. When the housing 1 is tilted or lying flat, solid impurities in the waste liquid will fall onto the first filter surface 41 under the action of gravity. Even if this causes a certain degree of blockage of the first filter surface 41, the liquid in the waste liquid can still be filtered out from the remaining parts of the first filter surface 41 not covered by solid impurities, thereby reducing the probability that the liquid in the first chamber 22 cannot be discharged in a timely manner when the housing 1 is tilted, especially when it is lying flat. Furthermore, because the first filter surface 41 is aligned with the first wall 24 and separated by a liquid-passing gap 5, the waste liquid filtered through the first filter surface 41 has sufficient space to move and flows into the liquid outlet 3 through the liquid-passing gap 5. This prevents the accumulation of filtered liquid due to the small space between the first filter surface 41 and the first wall 24, which would cause pressure on the first filter surface 41 and affect the normal outflow of subsequent liquid. This helps to improve the smoothness of the movement of waste liquid from the first compartment 221 to the second compartment 222.

[0078] exist Figure 2 In the figure, the arrow inside the dirty liquid barrel 2 shows the movement path of the dirty liquid. After the dirty liquid is sucked into the first compartment 221 from the suction port, the liquid in the dirty liquid enters the second compartment 222 after separation by the solid-liquid separator 4, and then enters the second chamber 23 through the liquid port 3.

[0079] As a preferred embodiment of the present application, the first curved filter surface 41 is curved and has the same curvature as the first wall 24. When the body 1 is in a tilted or flat position, solid impurities in the dirty liquid will fall onto the first filter surface 41 under the action of gravity, causing a certain degree of blockage of the first curved filter surface 41. However, since the first curved filter surface 41 is curved, the solid impurities will slide to the bottom of the first curved filter surface 41 under the action of gravity. The liquid in the dirty liquid is located above the solid impurities and can still be filtered out from the remaining parts of the first curved filter surface 41 that are not covered by the solid impurities, thereby reducing the possibility that the liquid in the first cavity 22 cannot be discharged in time when the body 1 is tilted, especially when it is lying flat. Furthermore, because the first curved filter surface 41 is aligned with the first wall 24 and separated by a liquid-passing gap 5, the waste liquid filtered through the first curved filter surface 41 has ample space to move and flow into the liquid outlet 3 through the liquid-passing gap 5. This prevents the accumulation of filtered liquid due to the limited space between the first curved filter surface 41 and the first wall 24, which would cause pressure on the first curved filter surface 41 and affect the normal outflow of subsequent liquid. This helps to improve the smooth movement of waste liquid from the first compartment 221 to the second compartment 222. Furthermore, by setting the first curved filter surface 41 to have the same curvature as the first wall 24, the internal space of the housing 1 is maximized to form the liquid-passing gap 5. After passing through the solid-liquid separator 4, the waste liquid in the first compartment 221 has ample space to move toward the liquid outlet 3, thereby increasing the flow rate of the waste liquid from the first chamber 22 to the second chamber 23. The first curved filtering surface 41 and the first wall 24 referred to in this embodiment have the same curvature, which does not mean that the curvatures of the two are completely consistent. Deviations within a certain range due to processing accuracy or other factors are allowed. The curvatures of the corresponding parts of the two can be regarded as the same if the difference is within 5%.

[0080] It should be noted that the first filter surface 41 in this embodiment corresponds to the first wall 24, which means that the first filter surface 41 and the first wall 24 have the same curvature, and the convex direction of the curved surface is consistent with the convex direction of the first wall 24. Figure 2 、 Figure 3 As shown, the outer surfaces of the first wall 24 and the first filter surface 41 are bent along the width direction of the body 1 to form an arc surface, which can also be as shown in FIG. Figure 4 As shown, the outer surfaces of the first wall 24 and the first filtering surface 41 are bent along the height direction of the fuselage 1 to form arc-shaped surfaces.

[0081] Moreover, the sewage inlet 21 is arranged in the first interval 221 so that the sewage liquid flows to the second interval 222 through the solid-liquid separator 4 when the fuselage 1 is tilted. This means that when the fuselage 1 is in a tilted state, the risk of the sewage liquid in the first interval 221 flowing back into the suction device is relatively high. The solid-liquid separator 4 can filter and divert the liquid and solids in the sewage in the first interval 221 and supply the liquid to the second interval 222, thereby reducing the risk of the sewage liquid flowing back into the suction device. However, the solid-liquid separator 4 of the present application is not only capable of filtering the liquid in the sewage when the fuselage 1 is tilted. When the fuselage 1 is in an upright state, the solid-liquid separator 4 can still play a solid-liquid separation role.

[0082] The present application does not limit the structural form of the solid-liquid separator 4. In one embodiment, Figure 5 As shown, a plurality of filter through holes 411 are provided on the first filter surface 41, and the aperture size of the filter through holes 411 is set to allow liquid in the sewage to pass through while preventing solid dirt in the sewage from passing through, thereby achieving solid-liquid separation. The solid-liquid separator 4 in this embodiment can quickly filter solid dirt and allow liquid to pass through, and the filtration efficiency is high; in another embodiment, the solid-liquid separator 4 is provided with a semipermeable membrane corresponding to the first filter surface 41, and the semipermeable membrane blocks the solid dirt in the sewage in the first interval 221 and allows the liquid in the sewage to precipitate into the second interval 222, thereby achieving solid-liquid separation. The first filter surface 41 in this embodiment has the advantage of good filtering effect and high efficiency in intercepting solid dirt in the sewage.

[0083] As a preferred embodiment of the present application, Figure 2 、 Figure 5 As shown, the solid-liquid separator 4 further includes a second filter surface 42 , through which the first arcuate filter surface 41 is connected to the partition 6 , and the second filter surface 42 is arranged at an angle to the first filter surface 41 and is located on the side of the first filter surface 41 close to the second interval 222 .

[0084] By providing a second filter surface 42 connected to the partition 6 and the first filter surface 41 respectively, on the one hand, the filtering area of ​​the solid-liquid separator 4 is increased, which helps to enhance the filtering effect of the solid-liquid separator 4; on the other hand, the second filter surface 42 is arranged at an angle to the first filter surface 41, so that the first filter surface 41 and the second filter surface 42 have good filtering performance for different tilt angles of the fuselage 1. For example, when the fuselage 1 is upright, solid impurities in the sewage are pressed under the bottom of the second filter surface 42 under the action of gravity, and the liquid in the sewage can flow out from above the second filter surface 42 and the first filter surface 41; when the fuselage 1 is tilted or lying flat, the solid impurities in the sewage are pressed under the action of gravity on the bottom of the first filter surface 41, and the liquid in the sewage can flow out from above the first filter surface 41 and the second filter surface 42, thereby enhancing the separation speed of the solid-liquid separator 4 for the sewage and expanding the separation angle of the solid-liquid separator 4 for the sewage, thereby enhancing the filtering performance of the solid-liquid separator 4 for different tilt angles of the fuselage 1. Furthermore, the second filter surface 42 not only enhances the filtering effect and separation angle of the solid-liquid separator 4, but also integrates the function of providing a mounting position for the first filter surface 41. The functions are further integrated, and the structural design of the cleaning equipment is optimized.

[0085] As a preferred example of this embodiment, Figure 2 As shown, the first filter surface 41 extends along the height direction of the waste liquid barrel 2. The height direction mentioned here is Figure 2 In the direction indicated by the arrow X, the extension of the first filter surface 41 toward the partition 6 passes through the liquid outlet 3. Those skilled in the art will appreciate that in this example, the first filter surface 41 extends along the height of the waste liquid barrel 2. Therefore, the first section 221 and the second section 222 are located on either side of the width of the waste liquid barrel 2, separated by the first curved filter surface 41.

[0086] Arranging the first filter surface 41 to extend along the height direction of the dirty liquid barrel 2 can provide a larger extension space for the first filter surface 41, enhance the coverage of the first filter surface 41 on the first section 221, and thus enhance the separation efficiency of the solid-liquid separator 4. On this basis, since the dirty liquid will at least partially flow along the first filter surface 41 due to the wall adhesion effect after being filtered by the solid-liquid separator plate, and gradually slide toward the second chamber 23 under the action of gravity, the extended surface of the first curved filter surface 41 is arranged to pass through the liquid outlet 3. Therefore, this portion of the dirty liquid flowing along the outer surface of the first filter surface 41 due to the wall adhesion effect can continue to move along the extended surface of the first filter surface 41 under the action of inertia after leaving the first curved filter surface 41, thereby directly entering the liquid outlet 3 or moving to the vicinity of the liquid outlet 3. This greatly increases the movement rate of the liquid toward the liquid outlet 3 after passing through the first filter surface 41, reduces the probability of the dirty liquid accumulating in the second section 222, and improves the discharge rate of the dirty liquid in the first chamber 22.

[0087] As another preferred example under this embodiment, Figure 5 As shown, the solid-liquid separator 4 also includes a third filter surface 43 located on the side of the first filter surface 41, and the third filter surface 43 is respectively in contact with the first filter surface 41 and the second filter surface 42; the second filter surface 42 has a first connection portion directly connected to the partition 6 and a second connection portion connected to the partition 6 through the diverter column 7, and the first connection portion and the second connection portion are arranged at intervals.

[0088] By providing the third filter surface 43, the filtration area and filtration angle of the solid-liquid separator 4 are further enhanced. The liquid in the first compartment 221 can flow into the second compartment 222 at three angles: the first filter surface 41, the second filter surface 42, and the third filter surface 43, thereby enhancing the separation efficiency of the solid-liquid separator 4 for the liquid. In addition, a diverter column 7 is provided between the second filter surface 42 and the partition 6, so that the second filter surface 42 is mounted on the partition 6 through the joint support of the first connecting portion and the second connecting portion, thereby improving the connection strength between the second filter surface 42 and the partition 6 and increasing the installation stability of the solid-liquid separator 4. Furthermore, the provision of the diverter column 7 can also play a certain diversion role for the liquid filtered from the second filter surface 42. When there is a large amount of liquid in the first compartment 221 and a large amount of liquid flowing into the second compartment 222, the liquid passing through the second filter surface 42 is dispersed after passing through the diverter column 7, thereby reducing the probability of turbulence at the liquid outlet 3 caused by the large volume of liquid.

[0089] As another preferred embodiment of the present application, Figures 6 to 8 As shown, a guide plate 8 is provided at the liquid outlet 3 and extends obliquely toward the second chamber 23. The guide plate 8 has a first guide surface 81 connected to the liquid outlet 3 and a second guide surface 82 connected to the first guide surface 81. The angle between the extension line of the first guide surface 81 and the plane where the liquid outlet 3 is located is α, and the angle between the extension line of the second guide surface 82 and the plane where the liquid outlet 3 is located is β, and α>β.

[0090] The provision of a guide plate 8 at the liquid outlet 3 serves to guide the waste liquid flowing from the liquid outlet 3 into the second chamber 23. This is particularly true for situations where the volume of waste liquid in the second interval 222 is large and the flow rate of waste liquid flowing through the liquid outlet 3 is high. This large volume of waste liquid, when passing through the liquid outlet 3, may cause turbulence due to the change in direction of movement. Furthermore, the waste liquid may impact the walls of the waste liquid barrel 2 during the diversion process, causing an abnormal sound, which is detrimental to the user experience. The provision of the guide plate 8 can further smooth the diversion of the waste liquid, preventing the waste liquid flowing from the liquid outlet 3 into the second chamber 23 from hitting the walls of the waste liquid barrel 2 due to inertia, thereby causing abnormal sound. Furthermore, the first and second guide surfaces 81, 82, respectively, provided on the guide plate 8 form angles α and β with the liquid outlet 3, with α being greater than β. This allows the waste liquid guided by the guide plate 8 to gradually change its direction of movement, thereby achieving a smoother flow of the waste liquid.

[0091] The present embodiment does not limit the structural form of the guide plate 8 , and the guide portion 61 may be a part of the partition plate 6 , or the guide portion 61 and the partition plate 6 may be two relatively independent structures.

[0092] As a preferred example of this embodiment, Figure 8 As shown, a sealing rib 9 is provided between the guide plate 8 and the barrel wall of the sewage liquid barrel 2. The sealing rib 9 is made of elastic material and has an interference fit with the barrel wall of the sewage liquid barrel 2. One end of the sealing rib 9 is connected to the guide plate 8, and the other end extends obliquely toward the direction close to the liquid outlet 3.

[0093] A sealing rib 9 is provided between the guide plate 8 and the barrel wall of the sewage liquid barrel 2, which can improve the sealing between the guide plate 8 and the barrel wall of the sewage liquid barrel 2 and prevent the sewage from leaking out from the gap between the guide plate 8 and the barrel wall of the sewage liquid barrel 2. The sealing rib 9 is made of elastic material and has an interference fit with the barrel wall of the sewage liquid barrel 2, which improves the sealing effect of the sealing rib 9. At the same time, the arrangement direction of the sealing rib 9 is set to be connected to the guide plate 8 at one end and extended obliquely toward the liquid port 3 at the other end, which is convenient for pushing the guide plate 8 into the barrel from one side of the sewage liquid barrel 2 during the assembly process, which helps to reduce the difficulty of assembling the guide plate 8. Preferably, as Figure 8 As shown, the sealing rib 9 is provided with a sealing lip 91. Figure 8 The arrow Y in the middle indicates the installation direction of the guide plate 8 during assembly. The guide plate 8 is pushed into the dirty liquid barrel 2 along the Y direction. The sealing lip 91 is tilted in this way to reduce the friction resistance of the guide plate 8 during installation. After installation, the sealing lip 91 is tilted along the Y direction. Figure 8 The direction shown extends obliquely toward the first chamber, thereby guiding the dirty liquid from the first chamber into the second chamber. When the amount of dirty liquid in the first chamber is small, it can also be sucked into the second chamber under the guidance effect, further reducing the risk of dirty liquid in the first chamber entering the suction device.

[0094] Preferably, the sealing rib 9 is provided at a position of the guide plate 8 corresponding to the first guide surface 81 , and the sealing rib 9 is made of rubber.

[0095] As another preferred embodiment of the present application, Figure 9 、 Figure 10 As shown, the partition 6 is provided with a suction port 63 connected to the second cavity 23, and the suction device and the suction port 63 are connected through the suction channel 10. The suction port 63 is located at the top of the second cavity 23 when the fuselage 1 is in a flat state; the suction channel 10 has a first channel 101 extending along the length direction of the first cavity 22 and a second channel 102 extending along the width direction of the first cavity 22, which are interconnected. The second channel 102 is located on the side away from the ground relative to the first channel 101 when the fuselage 1 is in a flat state, and the suction port 63 is located at one end of the second channel 102 away from the first channel 101.

[0096] The suction device draws air from the second chamber 23 through a suction channel 10 connected to a suction port 63. The suction port 63 is located at the top of the second chamber 23 when the body 1 is in a flat position. This ensures that the dirty liquid in the second chamber 23 is always below the suction port 63, regardless of whether the body 1 is in an upright, tilted, or flat position. This reduces the probability of dirty liquid in the second chamber 23 entering the suction channel 10 through the suction port 63, thereby improving the operating stability of the suction device. The suction channel 10 is configured to include a first channel 101 and a second channel 102, making its installation location more flexible and reducing the space occupied above the liquid outlet 3. Furthermore, dirty liquid in the second chamber 23 must pass through the suction port 63 at the top of the second chamber 23 to enter the suction channel 10, significantly reducing the possibility of dirty liquid in the second chamber 23 flowing back into the suction channel 10.

[0097] Specifically, the sewage inlet pipe is arranged near the front of the fuselage 1, and the first channel 101 is located on one side of the first section 221 close to the second section 222. Figure 9 The fuselage 1 is in a flat state. At this time, due to the provision of the second channel 102 , the suction port 63 at the end of the second channel 102 is located at the top of the second cavity 23 .

[0098] As a preferred example of this embodiment, Figure 10As shown, it also includes a first liquid-blocking plate 110 arranged around the suction port 63, one end of the first liquid-blocking plate 110 is connected to the bottom surface of the partition 6, and the other end extends toward the second cavity 23. The first liquid-blocking plate 110 separates the suction port 63 from the liquid outlet 3. A first liquid level detection component 120 is provided on the side of the first liquid-blocking plate 110 facing the suction port 63. The first liquid level detection component 120 is located below the suction port 63 when the fuselage 1 is in a flat state. A first liquid-blocking plate 110 is provided at the suction port 63, which can stop the dirty liquid moving toward the suction port 63. When the fuselage 1 rotates to change its tilt angle, and when the fuselage 1 is pushed and pulled forward and backward, the dirty liquid in the second cavity 23 will shake violently. By providing the first liquid-blocking plate 110, a certain stopping effect can be provided for the shaking dirty liquid, reducing the probability of the dirty liquid entering the suction port 63. In addition, a first liquid level detection component 120 is provided below the suction port 63, which can detect the liquid level height in the second cavity 23 in real time, and prevent the dirty liquid storage in the second cavity 23 from being too high and submerging the suction port 63, thereby providing a guarantee for the suction stability of the suction device. This example does not limit the structural form of the first liquid-blocking plate 110, and it can be as follows: Figure 10 The structure shown is in a bent shape, and is bent to form a liquid blocking space that wraps the suction port 63; it can also be in a plate-shaped structure to separate the suction port 63 from the liquid outlet 3.

[0099] As a preferred method in this example, Figure 10 As shown, the second liquid level detection member 130 is also included, which is located on the side of the first liquid-blocking panel 110 facing away from the suction port 63. When the body 1 is in a flat position, the vertical height of the second liquid level detection member 130 is lower than that of the first liquid level detection member 120. The provision of the second liquid level detection member 130 enhances the stability of the liquid level detection in the second cavity 23, prevents the occurrence of the phenomenon that the second cavity is filled with dirty liquid but no warning is given, and provides a guarantee for the stable suction of the suction device.

[0100] As another preferred example under this embodiment, Figure 11As shown, a first liquid-blocking plate 110 extending toward the second cavity 23 is provided at the bottom of the partition 6. The first liquid-blocking plate 110 separates the suction port 63 from the liquid-passing port 3. Along the width direction of the second cavity 23, a fourth liquid-blocking plate 210 is also included that is symmetrically arranged with the first liquid-blocking plate 110. A third liquid level detection component 220 is provided in the fourth liquid-blocking plate 210. When there is a lot of dirty liquid in the second cavity 23, especially when the fuselage 1 is greatly tilted or in a lying state, the dirty liquid in the second cavity 23 is close to the suction port 63, which increases the probability of the dirty liquid entering the first liquid baffle plate 110. Since the dirty liquid entering the first liquid baffle plate 110 is close to the suction port 63, there is a certain probability that it will be directly sucked into the suction port 63 and cannot be detected by the first liquid level detection component 120. By providing the third liquid level detection component 220, when the dirty liquid enters the fourth liquid baffle plate 210 corresponding to the first liquid baffle plate 110, it can be detected by the third liquid level detection component 220 to prompt the user that the liquid level is too high, thereby improving the accuracy of liquid level detection in the second cavity 23.

[0101] As another preferred example under this embodiment, Figure 12 As shown, the bottom of the partition 6 is provided with a first liquid barrier 110 and a fourth liquid barrier 210 extending toward the second cavity 23. The first liquid barrier 110 and the fourth liquid barrier 210 are located at opposite ends of the partition 6, respectively. When the body is in a flat position, the fourth liquid barrier 210 is higher than the first liquid barrier 110. The suction port 63 is located within the fourth liquid barrier 210. A fourth liquid level detector 230 is located within the first liquid barrier 110. When there is a large amount of dirty liquid in the second cavity 23, especially when the body 1 is significantly tilted or in a flat position, the dirty liquid is closer to the suction port 63, and the probability of dirty liquid entering the suction port 63 is high. As the dirty liquid level increases, the dirty liquid is more likely to enter the lower first liquid barrier 110, where it is detected by the fourth liquid level detector 230, alerting the user to the high level of dirty liquid in the second cavity 23 and reducing the probability of dirty liquid entering the fourth liquid barrier 210 and the suction port 63.

[0102] As a preferred method in this example, Figure 12 As shown, the liquid outlet 3 is located below the fourth liquid retaining plate 210 when the body 1 is in a flat position. With this arrangement, when the body 1 is in a flat position, the dirty liquid entering the second chamber 23 through the liquid outlet 3 will slide downward under the action of gravity, that is, slide away from the suction port 63, further reducing the risk of dirty liquid entering the suction port 63.

[0103] As a preferred embodiment of the present application, Figure 13 、 Figure 14As shown, the cleaning equipment also includes a sewage suction pipe 140 connecting the sewage inlet 21 with the first cavity 22, and a second liquid-blocking plate 150 and a third liquid-blocking plate 160 respectively surrounding a first suction channel 150 and a second suction channel 160. The first suction channel 150 and the second suction channel 160 are respectively connected to the suction device and the first cavity 22. The first suction channel 150 and the second suction channel 160 are arranged at intervals to form an avoidance space 180 between the two for the sewage suction pipe 140 to pass through.

[0104] In this embodiment, the suction device extracts air from the first chamber 22 through the first suction channel 150 and the second suction channel 160, reducing the air pressure in the first chamber 22 to create a pressure differential between the first chamber 22 and the sewage suction port. This pressure differential draws the waste liquid from the sewage suction port into the first section 221 of the first chamber 22. The suction device evenly draws air from the first chamber 22 through the first suction channel 150 and the second suction channel 160, reducing the disturbance of the airflow on the waste liquid in the first chamber 22, thereby ensuring a more stable flow of the waste liquid in the first section 221. The avoidance space 180 between the first suction channel 150 and the second suction channel 160 provides space for the sewage suction pipe 140 to pass through, effectively utilizing the compact space within the body 1 and optimizing the structural design of the cleaning device. Preferably, the second liquid-blocking plate 150 is provided with a sealing strip 170 that abuts the sewage suction pipe 140, or the third liquid-blocking plate 160 is provided with a sealing strip 170 that abuts the sewage suction pipe 140, or both the second liquid-blocking plate 150 and the third liquid-blocking plate 160 are provided with a sealing strip 170 that abuts the sewage suction pipe 140. The provision of the sealing strip 170 improves the sealing performance of the outer periphery of the sewage suction pipe 140 and serves to stop and seal the sewage flowing down the outer wall of the sewage suction pipe 140.

[0105] Preferably, the waste liquid barrel 2 includes a barrel cover 25 , the first liquid-blocking plate 110 and the second liquid-blocking plate 150 are both arranged on the barrel cover 25 , and a first sealing ring rib 251 is provided on the outer periphery of the barrel cover 25 to abut against the inner wall of the barrel body.

[0106] Preferably, a second sealing ring rib 64 is provided on the outer periphery of the partition 6 and abuts against the inner wall of the barrel body.

[0107] As a preferred embodiment of the present application, Figure 3 、 Figure 15As shown, the partition 6 also includes a flow guide portion 61 that communicates with the liquid outlet 3. The flow guide portion 61 is hollow, forming a flow channel connected to the liquid outlet 3. The flow channel has a liquid outlet 62 at one end, away from the liquid outlet 3, that communicates with the second chamber 23. The liquid outlet 62 is located at the top of the second chamber 23 when the body 1 is in the horizontal position. The flow guide portion 61 serves to guide waste liquid entering the second chamber 23 through the liquid outlet 3, thereby improving the smooth flow of waste liquid from the first chamber 22 to the second chamber 23. Furthermore, the liquid outlet 62 of the flow channel is located at the top of the second chamber 23 when the body 1 is in the horizontal position. When the body 1 is in the horizontal position, waste liquid in the second chamber 23 is unlikely to enter the liquid outlet 62, significantly reducing the probability of waste liquid in the second chamber 23 flowing back into the first chamber 22 through the liquid outlet 3.

[0108] Preferably, if Figure 13 、 Figure 15 As shown, the cleaning device further includes a sewage suction pipe 140 connecting the sewage inlet 21 with the first chamber 22. A relief groove 190 for the sewage suction pipe 140 is formed on the side of the partition 6 facing the front of the body 1, and the guide portion 61 is located to the side of the relief groove 190. This arrangement allows the liquid outlet 62 of the guide portion 61 to be closer to the front of the body 1. When the body 1 is lying flat, the liquid outlet 62 is located near the top of the second chamber 23. When the body 1 is shaken, the dirty liquid in the second chamber 23 is unlikely to enter the flow channel and the first chamber 22 through the liquid outlet 62.

[0109] This application does not limit the number and structural form of the suction device. In one embodiment, the suction device includes a vacuum fan and an air pump. The vacuum fan is connected to the first chamber 22 to suck the air in the first chamber 22, and the air pump is connected to the second chamber 23 to suck the air in the second chamber 23; in another embodiment, the suction device includes a vacuum fan, and the air intake of the vacuum fan is respectively connected to the first chamber 22 and the second chamber 23 to respectively suck the air in the first chamber 22 and the second chamber 23.

[0110] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0111] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0112] The above are merely embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A cleaning device with good suction stability, comprising a body having a dirty liquid barrel and a suction device, the dirty liquid barrel comprising a sewage inlet and a partition having a liquid outlet, the partition dividing the dirty liquid barrel into a first chamber and a second chamber communicating with the suction device, a solid-liquid separator being provided in the first chamber, the solid-liquid separator dividing the first chamber into a first section and a second section, the first section being communicated with the sewage inlet, the second section being communicated with the second chamber via the liquid outlet, the suction device being communicated with the second chamber to suck dirty liquid flowing from the first section to the second section into the second chamber via the liquid outlet, characterized in that: The dirty liquid barrel includes a first wall located on the back of the fuselage, the first wall forming a part of the outer surface of the back of the fuselage, and the solid-liquid separator includes a first filtering surface opposite to the first wall, the first filtering surface and the first wall are spaced apart to form a liquid-passing gap between the two.

2. The cleaning device according to claim 1, characterized in that The solid-liquid separator further includes a second filter surface, the first filter surface is connected to the partition through the second filter surface, the second filter surface is arranged at an angle to the first filter surface and is located on a side of the first filter surface close to the second interval.

3. The cleaning device according to claim 2, characterized in that The first filter surface extends along the height direction of the dirty liquid barrel, and an extension surface of the first filter surface toward the partition passes through the liquid outlet.

4. The cleaning device according to claim 2, characterized in that The solid-liquid separator also includes a third filter surface located on the side of the first filter surface, and the third filter surface is respectively in contact with the first filter surface and the second filter surface; the second filter surface has a first connection portion directly connected to the partition and a second connection portion connected to the partition through a diverter column, and the first connection portion and the second connection portion are arranged at intervals.

5. The cleaning device according to claim 1, characterized in that A guide plate is provided at the liquid outlet, extending obliquely toward the second chamber. The guide plate has a first guide surface connected to the liquid outlet and a second guide surface connected to the first guide surface. The angle between the extension line of the first guide surface and the plane where the liquid outlet is located is α, and the angle between the extension line of the second guide surface and the plane where the liquid outlet is located is β, and α>β.

6. The cleaning device according to claim 5, characterized in that A sealing rib is provided between the guide plate and the barrel wall of the sewage liquid barrel. The sealing rib is made of elastic material and has an interference fit with the barrel wall of the sewage liquid barrel. One end of the sealing rib is connected to the guide plate, and the other end extends obliquely toward the direction close to the liquid outlet.

7. The cleaning device according to claim 1, characterized in that The partition is provided with a suction port communicating with the second cavity, the suction device is communicated with the suction port via a suction channel, and the suction port is located at the top of the second cavity when the fuselage is in a flat position; The suction channel has a first channel extending along the length direction of the first cavity and a second channel extending along the width direction of the first cavity, which are interconnected. The second channel is located on a side of the first channel away from the ground when the fuselage is in a lying state, and the suction port is located at an end of the second channel away from the first channel.

8. The cleaning device according to claim 7, characterized in that It also includes a first liquid-blocking plate arranged around the suction port, one end of the first liquid-blocking plate is connected to the bottom surface of the partition, and the other end extends toward the second cavity, the first liquid-blocking plate separates the suction port from the liquid outlet, and a first liquid level detection component is provided on the side of the first liquid-blocking plate facing the suction port, and the first liquid level detection component is located below the suction port when the fuselage is in a flat position.

9. The cleaning device according to claim 1, characterized in that The cleaning equipment also includes a sewage suction pipe connecting the sewage inlet with the first cavity, and a second liquid-blocking plate and a third liquid-blocking plate respectively enclosing a first suction channel. The first suction channel and the second suction channel are respectively connected to the suction device and the first cavity. The first suction channel and the second suction channel are arranged at intervals to form an escape space between the two for the sewage suction pipe to pass through. The second liquid-blocking plate and / or the third liquid-blocking plate are provided with a sealing strip that abuts against the sewage suction pipe.

10. The cleaning device according to claim 1, characterized in that The partition also includes a guide portion connected to the liquid outlet, the guide portion is hollow inside to form a flow channel connected to the liquid outlet, the flow channel has a liquid outlet connected to the second cavity at an end away from the liquid outlet, and the liquid outlet is located at the top of the second cavity when the body is in a lying state; or, the first filter surface and the first wall are arranged in an arc shape, or the suction device includes a vacuum fan and an air pump, the vacuum fan is connected to the first cavity, and the air pump is connected to the second cavity.

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