Cleaning device

Abstract

The utility model discloses a cleaning device. The cleaning device comprises a containing piece, a filter screen assembly and a suction nozzle. The accommodating piece is provided with a first end and a second end which are spaced; the filter screen assembly comprises a filter screen part and a flow guide part, the filter screen part covers the first end and the second end, and the flow guide part is arranged between the filter screen part and the containing part; the suction nozzle is arranged in the containing piece. The flow guide part comprises a first channel opening, a second channel opening and a flow guide channel, the first channel opening and the second channel opening are communicated through the flow guide channel, and the first channel opening is close to the suction opening of the suction nozzle. The flow guide part can play a flow guide role, so that residual sewage can reach the suction nozzle through the flow guide channel, the suction nozzle can conveniently suck the residual sewage in the containing part, the probability that the sewage is left in the containing part is reduced, and the residual sewage can be effectively reduced or eliminated.

Description

Technical Field

[0001] This utility model relates to the field of cleaning device technology, and in particular to a cleaning device. Background Technology

[0002] The design of the base station for cleaning devices is crucial for improving cleaning efficiency and user experience. Existing cleaning devices, such as robotic vacuum cleaners, robotic mops, or handheld vacuum cleaners, are typically equipped with a base station that not only provides charging and dust collection functions but also extends to advanced features such as cloth washing and base station self-cleaning.

[0003] Among these functions, wastewater treatment within the base station's containment system is a crucial element. The containment system prevents water and wastewater from leaking out while also collecting waste. Currently, the commonly used method is to use a suction nozzle to create negative pressure and draw wastewater into the wastewater tank. Furthermore, filters are installed on the suction nozzle to prevent solid debris such as sludge, hair, and fibers from clogging it.

[0004] However, when wastewater is pumped down to a level below the suction nozzle, water tends to adhere to the filter screen due to surface tension, leaving a significant amount of residual water in the container, some distance from the nozzle. This residual water is difficult to effectively remove. Over time, this residual water can generate odors and breed bacteria, severely impacting user experience and the performance of the cleaning device. Therefore, effectively reducing or eliminating residual water in the container has become a pressing technical challenge for those skilled in the art. Utility Model Content

[0005] This invention provides a cleaning device to solve at least one of the aforementioned technical problems.

[0006] The cleaning device according to this invention includes a receiving member, a filter assembly, and a suction nozzle. The receiving member has a first end and a second end spaced apart; the filter assembly includes a filter portion and a flow guiding portion, the filter portion covering the first end and the second end, and the flow guiding portion being disposed between the filter portion and the receiving member; the suction nozzle is disposed within the receiving member.

[0007] The flow guide includes a first channel opening, a second channel opening, and a flow guide channel. The first channel opening and the second channel opening are connected through the flow guide channel. The first channel opening is located near the suction port of the suction nozzle.

[0008] In the cleaning device of this invention, when sewage is pumped until the liquid level is below the suction nozzle, water easily adheres to the filter screen due to surface tension, leaving a large amount of residual water in the container at a distance from the suction nozzle. This makes it difficult for the suction nozzle to suck up sewage from this area. By providing a flow guide between the filter screen and the container, the flow guide can guide the residual sewage to the suction nozzle through the flow channel. This facilitates the suction nozzle's ability to suck up the residual sewage in the container, reducing the probability of sewage remaining in the container and effectively reducing or eliminating the residual sewage.

[0009] In some embodiments, the flow channel extends from a first end of the receiver toward a second end of the receiver.

[0010] In some embodiments, the suction nozzle is disposed away from the first end of the receiving member, the first channel opening is connected to the suction port of the suction nozzle, and the second channel opening is disposed close to the first end of the receiving member.

[0011] In some embodiments, the flow guide includes a first wall and two second walls connected at an angle to the first wall, the first wall extending along the first channel opening of the flow guide toward the second channel opening, and the second walls being disposed on the side of the first wall near the receiving member.

[0012] In some embodiments, both second walls have notches.

[0013] In some embodiments, the cross-sectional area of ​​the first channel opening is the same as the cross-sectional area of ​​the suction opening of the nozzle.

[0014] In some embodiments, the filter section is detachably connected to the flow guide section.

[0015] In some embodiments, the filter part includes a body and a fixing buckle protruding from one side of the body. The fixing buckle includes a connecting post and a connecting buckle. One end of the connecting post is connected to the body, and the other end of the connecting post is connected to the connecting buckle. The flow guide part is provided with a fixing hole, and the connecting buckle engages with the fixing hole.

[0016] In some embodiments, the orthographic projection of the suction opening of the nozzle onto the receiver is a first projection, and the orthographic projection of the first channel opening onto the receiver is a second projection, with at least a portion of the first projection located outside the second projection.

[0017] In some embodiments, the filter portion is inclined, and the height of the filter portion gradually increases from the first end of the receiver to the second end of the receiver.

[0018] In some embodiments, the receiving member is provided with a mounting hole, the suction nozzle passes through the mounting hole, and a sealing member is provided between the receiving member and the suction nozzle.

[0019] In some embodiments, the suction nozzle includes a first portion and a second portion connected at an angle to the first portion, the first portion passing through the mounting hole, a sealing element being disposed between the first portion and the suction nozzle, and the second portion forming the suction opening.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a partial structural schematic diagram of a cleaning device according to one embodiment of the present invention;

[0023] Figure 2 This is a partial cross-sectional view of a cleaning device according to another embodiment of the present invention;

[0024] Figure 3 yes Figure 2 Enlarged view of part a of the cleaning device;

[0025] Figure 4 This is a schematic diagram of the flow guide and suction nozzle according to one embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of a filter assembly according to one embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] Cleaning device 100; receiving part 10; first end 11; second end 12; filter assembly 20; filter part 21; flow guide part 22; suction nozzle 30; suction port 31; first channel opening 220; second channel opening 221; flow guide channel 222; first wall 223; second wall 224; notch 225; body 210; fixing buckle 211; connecting post 2110; connecting buckle 2111; fixing hole 226; mounting hole 13; sealing element 40; first part 32; second part 33. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, 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," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0034] Please see Figure 1 , Figure 2 and Figure 3 The cleaning device 100 of this embodiment includes a receiving member 10, a filter assembly 20, and a suction nozzle 30. The receiving member 10 has a first end 11 and a second end 12 spaced apart; the filter assembly 20 includes a filter part 21 and a flow guide part 22, the filter part 21 covering the first end 11 and the second end 12, and the flow guide part 22 being disposed between the filter part 21 and the receiving member 10; the suction nozzle 30 is disposed within the receiving member 10.

[0035] The flow guide 22 includes a first channel port 220, a second channel port 221 and a flow guide channel 222. The first channel port 220 and the second channel port 221 are connected through the flow guide channel 222. The first channel port 220 is located near the suction port 31 of the suction nozzle 30.

[0036] In the cleaning device 100 of this embodiment, when sewage is drawn to a level below the suction port 31 of the suction nozzle 30, water easily adheres to the filter screen 21 due to the surface tension of water. This leaves a large amount of residual water in the container 10 at a distance from the suction nozzle 30, making it difficult for the suction nozzle 30 to suck up sewage from this area. By providing a guide section 22 between the filter screen 21 and the container 10, the guide section 22 can guide the flow, allowing the residual sewage to reach the suction nozzle 30 through the guide channel 222. This facilitates the suction nozzle 30's ability to suck up the residual sewage in the container 10, reducing the probability of sewage remaining in the container 10 and effectively reducing or eliminating the residual sewage.

[0037] Specifically, the cleaning device 100 can be a robot vacuum cleaner, a robot mop, or a handheld vacuum cleaner. The cleaning device 100 is used to clean various environmental surfaces, such as floors, carpets, and walls, and can remove dust, dirt, liquid stains, and other contaminants.

[0038] The cleaning device 100 can be handheld, automatic, or semi-automatic. The cleaning device 100 may include a base station capable of providing functions such as charging, dust collection, or cleaning. For example, for cleaning devices 100 such as robotic mops, the base station may have the function of cleaning the mop or rag, and may even include a drying function to ensure the cleanliness and hygiene of the mop.

[0039] Wastewater from washing mops or rags will remain in the base station's container 10. The container 10 is used to collect and temporarily store wastewater and dirt generated during the cleaning process. The container 10 can be a tray, box, etc. The shape of the container 10 can be rectangular, circular, or other regular shapes, or it can be an irregular shape. The container 10 can be made of rubber, metal, or other water-resistant materials to ensure durability and corrosion resistance.

[0040] The first end 11 and the second end 12 of the container 10 refer to the two ends of the container 10 that are spaced apart. Both the first end 11 and the second end 12 of the container 10 may contain residual sewage.

[0041] The filter section 21 can at least cover the first end 11 and the second end 12 of the container 10, or in other words, the filter section 21 can at least cover the area in the container 10 used for collecting and temporarily storing sewage and dirt generated during the cleaning process.

[0042] The filter section 21 may include a filter screen that can block solid waste such as sludge, hair, and fibers. The filter screen may be made of stainless steel, nylon, or other synthetic materials to ensure its strength and filtration effect. The flow guide section 22 may be designed with a specific angle or curve to optimize the flow path of wastewater and reduce flow resistance. Vertically, the filter section 21, the flow guide section 22, and the receiving member 10 may be arranged sequentially, with the filter section 21 located above the flow guide section 22, or in other words, the flow guide section 22 positioned on the side of the filter section 21 facing the receiving member 10.

[0043] The flow guide 22 can be connected to the receiving member 10. The flow guide 22 can be integrally formed with the filter screen 21, or it can be processed separately from the filter screen 21 and then assembled together. The flow guide 22 can be made of plastic, rubber or other materials.

[0044] The guide section 22 can guide the sewage and allow it to be sucked up by the suction nozzle 30. The suction nozzle 30 can be a regular shape such as a circle or a square, or it can be an irregular shape. For example, the suction nozzle 30 can be a circular tube.

[0045] The suction nozzle 30 can be positioned anywhere within the container 10. For example, the suction nozzle 30 can be positioned at either the first end 11 or the second end 12 of the container. A negative pressure can be created at the suction port 31 of the suction nozzle 30, allowing residual wastewater within the container 10 to flow along the guide channel 222 of the guide portion 22 towards the suction nozzle 30. This enables the suction nozzle 30 to draw away water from a distance, ultimately drawing the wastewater into a wastewater tank or other area where wastewater is stored.

[0046] Among them, the suction port 31 of the suction nozzle 30 is the part of the cleaning device 100 that directly contacts the sewage and forms a negative pressure to suck up the sewage.

[0047] The first channel opening 220 can be the portion of the guide section 22 near the suction nozzle 30. The second channel opening 221 can be the region of the guide section 22 near the first end 11 of the receiving member 10. The guide channel 222 can be a channel for the flow of sewage, and the guide channel 222 can be curved, straight, or other shapes. There can be one or more guide channels 222, and there can also be one or more corresponding first channel openings 220 and second channel openings 221. The guide channel 222 can correspond one-to-one with the first channel opening 220 and the second channel opening 221, or the number of guide channels 222 and the number of second channel openings 221 can not correspond. For example, one guide channel 222 can correspond to two first channel openings 220 and two second channel openings 221.

[0048] Please see Figure 1 , Figure 2 and Figure 3 In some embodiments, the flow channel 222 extends in a direction F from the first end 11 of the receiver 10 to the second end 12 of the receiver 10.

[0049] Thus, the suction nozzle 30 can draw wastewater from the first end 11 of the container 10 or from the second end 12 of the container 10 through the flow channel 222. In addition, the flow channel 222 is small in size, which can reduce the manufacturing cost of the flow guide 22.

[0050] Please see Figure 1 , Figure 2 and Figure 3 In some embodiments, the suction nozzle 30 is disposed away from the first end 11 of the receiving member 10, the first channel port 220 is connected to the suction port 31 of the suction nozzle 30, and the second channel port 221 is disposed close to the first end 11 of the receiving member 10.

[0051] Thus, the wastewater at the first end 11 of the container 10 is difficult to suck up because it is far from the suction nozzle 30. By providing the guide section 22 and setting the first channel opening 220 of the guide section 22 close to the suction nozzle 30 and communicating with the suction port 31 of the suction nozzle 30, even if the first end 11 of the container 10 is located far from the suction nozzle 30, the suction nozzle 30 can still suck up the wastewater at the first end 11 of the container 10 through the guide section 22. This allows wastewater that is far from the suction nozzle 30 in the container 10 to be sucked up, thereby reducing the possibility of wastewater remaining in the container 10.

[0052] Specifically, the first end 11 of the container 10 refers to the end of the container 10 that is away from the nozzle 30. The second end 12 of the container 10 refers to the end of the container 10 that is close to the nozzle 30. Both the first end 11 and the second end 12 of the container 10 are used to collect and temporarily store wastewater and dirt generated during the cleaning process.

[0053] Please see Figure 2 and Figure 4 In some embodiments, the flow guide 22 includes a first wall 223 and two second walls 224 connected at an angle to the first wall 223. The first wall 223 extends from the first channel opening 220 of the flow guide 22 to the second channel opening 221, and the second walls 224 are disposed on the side of the first wall 223 near the receiving member 10.

[0054] Thus, wastewater can flow from the second channel opening 221 to the first channel opening 220 through the first wall 223, and be sucked up by the suction nozzle. The second wall 224 can cooperate with the first wall 223 to limit the flow path of wastewater within the guide section 22.

[0055] Specifically, the first wall 223 can be connected to the filter screen 21 and is located on the side of the filter screen 21 facing the receiving member 10. The first wall 223 and the second wall 224 can be integrally formed or processed separately and then assembled together. The angle between the first wall 223 and the second wall 224 can be adjusted according to different needs to optimize the efficiency of sewage flow. The angle can be acute, right, or obtuse. The first wall 223 and the second wall 224 can define the guide channel 222, thereby defining the path for sewage flow. The second wall 224 can be a rib provided on the first wall 223.

[0056] Please see Figure 2 and Figure 4 In some embodiments, both second walls 224 are provided with notches 225.

[0057] Thus, by providing a notch 225 on the second wall 224 of the guide section 22, additional paths for sewage flow are provided, which help sewage flow from different areas of the containment 10 to the suction nozzle 30, thereby improving the sewage suction efficiency.

[0058] Areas far from the second channel opening 221 may form dead zones, where sewage is difficult to be directly sucked up by the suction nozzle 30 through the guide section 22. Through the gap 225 on the second wall 224, sewage can flow from these dead zones to the gap 225, and then be sucked up by the suction nozzle 30 through the guide channel 222, effectively reducing dead zones.

[0059] Specifically, for the flow guide 22 made of plastic material, during the injection molding process of the flow guide 22, the mold can be designed so that the notch 225 is formed directly during molding. Alternatively, the notch 225 can be formed on the second wall 224 using thermal cutting technology after the flow guide 22 has been injection molded. The number of notches 225 can be one or more, for example, two, three, four or even more.

[0060] In some embodiments, the cross-sectional area of ​​the suction port 31 of the suction nozzle 30 is S1, the cross-sectional area of ​​the second channel port 221 is S2, and the cross-sectional area of ​​the notch 225 is S3, wherein S1 / (S2+S3) is approximately equal to 1. The range of S1 / (S2+S3) can be [0.95, 1.05], for example, S1 / (S2+S3) can be 0.95, 0.97, 1, 1.02, or 1.05.

[0061] Thus, by setting the cross-sectional area of ​​the suction port 31 of the suction nozzle 30 to be approximately equal to the sum of the cross-sectional areas of the second channel port 221 and the notch 225, the flow rate of sewage from the second channel port 221 and the notch 225 to the suction port 31 of the suction nozzle 30 can be kept stable under a certain flow rate, thereby improving the efficiency of sewage suction.

[0062] Specifically, flow rate = flow velocity * cross-sectional area. With a constant flow rate, similar cross-sectional areas maintain a stable flow velocity. In particular, the flow velocity of sewage flowing into the fluid channel is similar to the flow velocity of sewage flowing out of the fluid channel.

[0063] The cross-sectional area of ​​the suction port 31 of the suction nozzle 30 refers to the cross-sectional area of ​​the suction port 31 of the suction nozzle 30 in the direction perpendicular to the flow of sewage inside the suction nozzle 30. For example, for a circular tubular suction nozzle 30 with the same diameter everywhere, the cross-sectional area of ​​the suction port 31 of the suction nozzle 30 can be the cross-sectional area of ​​the tube.

[0064] The cross-sectional area of ​​the second channel opening 221 is the area of ​​the cross-section of the guide flow section 22 in the region of the second channel opening 221, or in other words, the cross-sectional area of ​​the second channel opening 221 perpendicular to the direction of sewage flow. The cross-sectional area of ​​the notch 225 is the area of ​​the cross-section of the guide flow section 22 in the region of the notch 225, or in other words, the cross-sectional area of ​​each notch 225 on the second wall 224 perpendicular to the direction of sewage flow. The cross-sectional area of ​​the notch 225 is the sum of the cross-sectional areas of all the notches 225 on the second wall 224.

[0065] In some embodiments, the cross-sectional area of ​​the first channel opening 220 is the same as the cross-sectional area of ​​the suction opening 31 of the suction nozzle 30.

[0066] Thus, by setting the cross-sectional area of ​​the first channel opening 220 to be the same as the cross-sectional area of ​​the suction opening 31 of the suction nozzle 30, it helps to maintain the stability of the sewage flow and avoid flow velocity fluctuations caused by changes in cross-sectional area. This allows for the maximum utilization of the suction force of the suction nozzle 30, thereby more effectively suctioning the sewage in the container 10.

[0067] Specifically, flow rate = flow velocity * cross-sectional area. With a constant flow rate, similar cross-sectional areas can maintain a stable flow velocity. Specifically, the flow velocities of the wastewater flowing out of the fluid channel and the wastewater sucked up by the suction port 31 of the nozzle 30 are similar.

[0068] The cross-sectional area of ​​the first channel opening 220 is the area of ​​the cross-section of the guide flow section 22 in the region of the first channel opening 220, or in other words, the cross-sectional area of ​​the first channel opening 220 perpendicular to the direction of sewage flow.

[0069] Please see Figure 5 In some embodiments, the filter section 21 and the flow guide section 22 are detachably connected.

[0070] Thus, the detachable connection between the filter section 21 and the flow guide section 22 makes maintenance and cleaning easier. When the filter section 21 or the flow guide section 22 becomes dirty due to prolonged use, the flow guide section 22 can be easily removed for individual cleaning or replacement of the filter section 21 and the flow guide section 22, thereby improving the maintenance efficiency of the cleaning device 100.

[0071] Specifically, the connection between the filter section 21 and the flow guide section 22 can be a threaded connection, a snap-fit ​​connection, or a magnetic connection. For example, both the filter section 21 and the flow guide section 22 can be provided with threaded holes, and screws can be used to achieve a detachable connection between the filter section 21 and the flow guide section 22.

[0072] For example, a permanent magnet or electromagnet is embedded in the filter section 21. A corresponding magnet is embedded in the corresponding connecting portion of the flow guide section 22 to generate an attractive force. When the filter section 21 is brought close to the flow guide section 22, the attractive force of the magnets causes the two parts to fit tightly together, achieving a connection. When disassembly is required, the filter section 21 can be easily separated from the flow guide section 22 by applying external force to overcome the magnetic force, thus achieving a detachable connection between the filter section 21 and the flow guide section 22.

[0073] Please see Figure 5 In some embodiments, the filter section 21 includes a body 210 and a fixing buckle 211 protruding from one side of the body 210. The fixing buckle 211 includes a connecting post 2110 and a connecting buckle 2111. One end of the connecting post 2110 is connected to the body 210, and the other end of the connecting post 2110 is connected to the connecting buckle 2111. The flow guide section 22 is provided with a fixing hole 226, and the connecting buckle 2111 is engaged with the fixing hole 226.

[0074] Thus, the snap-fit ​​design between the retaining clip 211 on the filter section 21 and the retaining hole 226 on the flow guide section 22 simplifies the assembly and disassembly process. Users can easily align and snap the retaining clip 211 with the retaining hole 226, or vice versa, thereby quickly assembling or disassembling the cleaning device 100. In addition, the retaining clip 211 provides a positioning function, thereby improving the assembly efficiency of the filter section 21 and the flow guide section 22.

[0075] Specifically, the main body 210 is the primary part of the filter section 21 used to filter solid waste such as sludge, hair, and fibers generated during the cleaning process. The retaining clip 211 can be integrally formed with the main body 210, or it can be processed separately and then assembled together. The retaining clip 211 is used for detachable connection with the flow guide section 22.

[0076] The connecting post 2110 and the connecting buckle 2111 are two interconnected parts of the fixing buckle 211. The connecting post 2110 and the connecting buckle 2111 can be integrally molded or processed separately and then assembled together. The connecting buckle 2111 can be hook-shaped, frustum-shaped, or other shapes that facilitate snap-fit. The connecting buckle 2111 can be made of materials such as plastic or rubber to ensure durability during frequent disassembly and assembly.

[0077] The fixing hole 226 can be a through hole opened on the flow guide 22. A fixing plate can be connected to the second wall 224 of the flow guide 22, and the fixing plate can protrude from one side of the second wall 224 in a direction opposite to the flow guide channel 222. For the flow guide 22 made of plastic material, the mold can be designed so that the fixing hole 226 is formed directly during the injection molding process of the flow guide 22. Of course, the fixing hole 226 can also be formed on the fixing plate using thermal cutting technology after the flow guide 22 has been injection molded.

[0078] In use, align the connecting buckle 2111 with the fixing hole 226. The connecting buckle 2111 will deform under the action of external force, thereby passing through the fixing hole 226 and engaging with it. When it is necessary to remove the connecting buckle 2111, the connecting buckle 2111 will deform under the action of external force, thereby separating from the fixing hole 226.

[0079] In some embodiments, the orthographic projection of the suction port 31 of the suction nozzle 30 onto the receiving member 10 is a first projection, and the orthographic projection of the first channel port 220 onto the receiving member 10 is a second projection, with at least a portion of the first projection located outside the second projection.

[0080] Thus, when the liquid level is higher than the suction port 31 of the nozzle 30, the nozzle 30 can directly suck up the sewage in the container 10. When the liquid level drops to or below the level of the suction port 31 of the nozzle 30, the first channel 220 serves as the main suction channel, ensuring that the sewage continues to be effectively sucked up. At a high liquid level, the sewage is mainly sucked away through the space between the nozzle 30 and the container 10, allowing the nozzle 30 to suck up sewage with high efficiency. When the liquid level is at or below the suction port 31 of the nozzle 30, the nozzle 30 is open to the atmosphere, creating a negative pressure at the suction port 31. This helps maintain continuous suction force, ensuring that sewage continues to be sucked into the nozzle 30.

[0081] Specifically, such as Figure 3 As shown, the suction port 31 area of ​​the suction nozzle 30 to the left of position line B is the area where the first projection and the second projection overlap, and the suction port 31 area of ​​the suction nozzle 30 to the right of position line B is the area where the first projection is located outside the second projection.

[0082] Please see Figure 2 In some embodiments, the filter section 21 is inclined, and the height of the filter section 21 gradually increases in the direction F from the first end 11 of the receiving member 10 to the second end 12 of the receiving member 10.

[0083] Thus, the inclined filter screen 21 reduces the contact area between the wastewater in the container 10 and the filter screen 21, thereby reducing the probability of dirt in the wastewater clogging the filter screen 21. When the wastewater level in the container 10 is high, the wastewater may cover the filter screen 21, which can cause dirt in the wastewater to clog the mesh of the filter screen 21, resulting in clogging of the filter screen 21. By making the filter screen 21 inclined, the contact area between the wastewater in the container 10 and the filter screen 21 can be reduced.

[0084] Specifically, the surface of the guide portion 22 facing the filter portion 21 can be an inclined plane, so that the height of the filter portion 21 connected to the guide portion 22 gradually increases from the first end 11 of the receiving member 10 to the second end 12 of the receiving member 10 in the direction F. The surface of the guide portion 22 facing the filter portion 21 can also be a plane. One or more gaskets or pillars protruding from the plane can be provided on the plane, and the filter portion 21 can be connected to the plane and the gaskets or pillars, so that the height of the filter portion 21 connected to the guide portion 22 gradually increases from the first end 11 of the receiving member 10 to the second end 12 of the receiving member 10 in the direction F.

[0085] Please see Figure 3 In some embodiments, the receiving member 10 is provided with a mounting hole 13, the suction nozzle 30 passes through the mounting hole 13, and a sealing member 40 is provided between the receiving member 10 and the suction nozzle 30.

[0086] Thus, by providing a seal 40 between the container 10 and the nozzle 30, the probability of sewage leakage from the connection between the container 10 and the nozzle 30 can be effectively reduced, allowing sewage to be smoothly transported to the sewage tank during the cleaning process and avoiding environmental pollution.

[0087] Specifically, the mounting hole 13 can be a through hole provided on the receiving member 10. The body 210 of the receiving member 10 can include a bottom wall and a side wall. The mounting hole 13 can be provided on the bottom wall or on the side wall. If the mounting hole 13 is provided on the side wall, the probability of sewage leakage from the connection between the receiving member 10 and the suction nozzle 30 is relatively small. However, when the sewage level is high, sewage may still leak from the connection between the receiving member 10 and the suction nozzle 30. Therefore, by providing a sealing member 40 between the receiving member 10 and the suction nozzle 30, the probability of sewage leakage from the connection between the receiving member 10 and the suction nozzle 30 can be effectively reduced.

[0088] The seal 40 can be a sealant, a sealing ring, a sealing gasket, a rubber gasket, or other types of components.

[0089] Please see Figure 3 and Figure 4 In some embodiments, the suction nozzle 30 includes a first portion 32 and a second portion 33 connected at an angle to the first portion 32. The first portion 32 passes through the mounting hole 13, and a sealing element 40 is provided between the first portion 32 and the suction nozzle 30. The second portion 33 forms a suction port 31.

[0090] Thus, by designing the nozzle 30 as two parts with an angled connection, the space within the housing 10 can be utilized more effectively. This design allows the nozzle 30 to achieve a longer length or a more rational layout within a limited space, and facilitates cooperation with other components such as the guide section 22, the housing 10, and the seal 40, improving overall space utilization and making the entire cleaning device 100 more compact.

[0091] Specifically, the first portion 32 of the suction nozzle 30 can be used to ensure a secure connection between the suction nozzle 30 and the receiving member 10, and to provide a mounting base for the seal 40. The second portion 33 of the suction nozzle 30 can be used to form the suction port 31, which is the part that directly contacts the sewage and creates negative pressure to suction the sewage. The first portion 32 and the second portion 33 can be integrally formed, or they can be processed separately and then assembled together.

[0092] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0093] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cleaning device, characterized in that, The cleaning device includes: A receiving element having a spaced first end and a second end; A filter assembly, the filter assembly including a filter part and a flow guide part, the filter part covering the first end and the second end, and the flow guide part being disposed between the filter part and the receiving member; The suction nozzle is disposed within the receiving member; The flow guide includes a first channel opening, a second channel opening, and a flow guide channel. The first channel opening and the second channel opening are connected through the flow guide channel. The first channel opening is located near the suction port of the suction nozzle.

2. The cleaning device according to claim 1, characterized in that, The flow channel extends from the first end of the receiver to the second end of the receiver.

3. The cleaning device according to claim 1, characterized in that, The suction nozzle is disposed at a first end away from the receiving member, the first channel opening is connected to the suction port of the suction nozzle, and the second channel opening is disposed near the first end of the receiving member.

4. The cleaning device according to claim 1, characterized in that, The flow guide includes a first wall and two second walls that are connected at an angle to the first wall. The first wall extends along the first channel opening of the flow guide toward the second channel opening, and the second walls are disposed on the side of the first wall near the receiving member.

5. The cleaning device according to claim 4, characterized in that, Both of the second walls have notches.

6. The cleaning device according to claim 1, characterized in that, The cross-sectional area of ​​the first channel opening is the same as the cross-sectional area of ​​the suction opening of the nozzle.

7. The cleaning device according to claim 1, characterized in that, The filter section and the flow guide section are detachably connected.

8. The cleaning device according to claim 7, characterized in that, The filter section includes a body and a fixing buckle protruding from one side of the body. The fixing buckle includes a connecting post and a connecting buckle. One end of the connecting post is connected to the body, and the other end of the connecting post is connected to the connecting buckle. The flow guide section is provided with a fixing hole, and the connecting buckle is engaged with the fixing hole.

9. The cleaning device according to claim 1, characterized in that, The orthographic projection of the suction opening of the nozzle onto the receiving member is a first projection, and the orthographic projection of the first channel opening onto the receiving member is a second projection, with at least a portion of the first projection located outside the second projection.

10. The cleaning device according to claim 1, characterized in that, The filter section is inclined, and the height of the filter section gradually increases from the first end of the receiving member to the second end of the receiving member.

11. The cleaning device according to claim 1, characterized in that, The receiving component is provided with a mounting hole, the suction nozzle passes through the mounting hole, and a sealing component is provided between the receiving component and the suction nozzle.

12. The cleaning device according to claim 11, characterized in that, The suction nozzle includes a first part and a second part connected at an angle to the first part. The first part passes through the mounting hole, and the sealing element is provided between the first part and the suction nozzle. The second part forms the suction port.

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