Cleaning equipment

Abstract

The utility model relates to cleaning equipment which comprises a dirt collecting barrel, a power assembly and an air outlet shell, and the power assembly is used for providing suction force to form an air inlet path penetrating through the dirt collecting barrel; the power assembly is contained in the air outlet shell, and the air outlet shell is provided with an air outlet. At least part of the air outlet is communicated with the dirt collecting cylinder, so that a first air outlet path is formed; the flow direction of the first air outlet path is opposite to that of the air inlet path, and the first air outlet path and the air inlet path are intersected in the dirt collecting barrel; a part of the air outlet air path is introduced into the dirt collecting barrel, the air inlet air path is blocked or disturbed to a certain degree, dirt can fall back to the bottom of the dirt collecting barrel, blockage of an air opening and dirt bonding are avoided, in the working state that the machine body is horizontally placed, the first air outlet air path introduced into the dirt collecting barrel can counteract surge of sewage, and therefore the dirt collecting efficiency is improved. Therefore, sewage is prevented from flowing back to the power assembly.

Description

Technical Field

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

[0002] With the development of smart home appliance technology, floor scrubbers that integrate multiple functions such as sweeping, mopping, and vacuuming have become widely used in home cleaning. Compared with traditional cleaning tools that need to be replaced frequently, floor scrubbers can complete multiple cleaning tasks with one-button operation, saving time and effort.

[0003] Current floor scrubbers use a power unit to generate suction, drawing solid dirt and wastewater into a wastewater tank. However, with repeated use, dirt tends to accumulate at the vents on top of the wastewater tank, making cleaning difficult. Furthermore, when cleaning heavily soiled areas, this accumulation worsens, potentially clogging the vents and reducing suction power. A smaller vent leads to increased airflow, making it easier for moisture to be drawn towards the power source. This moisture can seep into the power source or escape through the exhaust, potentially causing damage or malfunction to the power source or disrupting the machine's airflow. Water is sprayed in various places; especially when using a floor scrubber to clean the floor in a small space, such as under a bed or sofa, the scrubber needs to be in a flat position to clean. In this special scenario, compared to cleaning a wide floor, because the wastewater tank is in a nearly horizontal position, the wastewater in the tank is more likely to flow back to the power source through the vent under the guidance of the suction airflow, causing damage to the power source. To address this, existing technologies have set up complex blocking structures inside the wastewater tank to prevent wastewater backflow, but these blocking structures take up space inside the wastewater tank and are difficult to clean.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] In view of this, the present application aims to provide a cleaning device that can prevent air vent blockage and dirt adhesion, and can prevent sewage backflow to the power components when the floor scrubber is laid flat during operation.

[0006] In a first aspect, embodiments of this application provide a cleaning device, including a sludge collection cylinder, a power component, and an air outlet housing.

[0007] The power assembly is used to provide suction force to form an air intake path through the sludge collection cylinder;

[0008] The power assembly is housed within the air outlet housing, and the air outlet housing has an air outlet.

[0009] The air outlet is at least partially connected to the sludge collection cylinder to form a first air outlet path; the first air outlet path flows in the opposite direction to the air inlet path, and the first air outlet path and the air inlet path intersect within the sludge collection cylinder.

[0010] Nowadays, the power components (such as suction motors) of various floor scrubber manufacturers are becoming increasingly powerful, which also increases the risk of dirt entering the power components. This is especially true when the machine is lying flat, as the air inlet of the power components is closer to the dirt in the collection tank, making the risk of dirt entering the machine even greater.

[0011] Based on this, current technologies have developed solutions that use various baffles to block dirt. By extending the gas flow path, the probability of dirt entering the power components is reduced. However, this method leads to a smaller capacity of the dirt collection cylinder, and the difficulty of cleaning the dirt also increases after it adheres.

[0012] Therefore, this application proposes a solution that utilizes the self-suction and exhaust principle of the power component to prevent dirt from entering the power component, without occupying the space of the dirt collection cylinder, and can effectively prevent dirt from being sucked into the power component.

[0013] With the above configuration, the first air outlet path, which is opposite to the air inlet path, is introduced into the sludge collection cylinder, so that the first air outlet path and the air inlet path intersect in the sludge collection cylinder. The first air outlet path obstructs or disturbs the air inlet path carrying dirt to a certain extent, thereby preventing dirt from being sucked into the power components.

[0014] It also helps dirt fall back to the bottom of the collection cylinder, preventing the first air inlet from becoming clogged and dirt from sticking together, thus improving the problem of dirt sticking to the wall and making it easier to clean the collection cylinder. At the same time, while the collection cylinder can be used to collect sewage, it can also intercept water vapor, preventing water vapor from seeping into the power components through the air inlet and causing damage to the power components, and also preventing water from spraying out of the machine's air outlet.

[0015] Therefore, the above solution can ensure that dirt or moisture is not sucked into the power components, while also preventing dirt from sticking to the dead corners of the collection cylinder.

[0016] In conjunction with the first aspect of this application, in an optional embodiment, the cleaning device includes a floor brush and a body rotatably connected to the floor brush, with the sludge collection cylinder mounted on the body; the sludge collection cylinder is used to collect sewage, and when the body is in a flat position, the first air outlet can offset part of the suction force, preventing sewage from entering the power component under the action of suction force;

[0017] The "flat" state refers to the angle between the machine body and the surface to be cleaned being 0-30 degrees.

[0018] With the above configuration, the first air outlet path introduced into the sludge collection cylinder can offset the surge of sewage, thereby preventing sewage from flowing back to the power components. This eliminates the need for a complex blocking structure, provides a good anti-backflow effect, and facilitates the miniaturization of the sludge collection cylinder and the overall cleaning equipment.

[0019] In conjunction with the first aspect of this application, in an optional embodiment, the air outlet is located below the power assembly and at least partially faces the sludge collection cylinder, so that the air discharged from the power assembly can enter the sludge collection cylinder. This arrangement facilitates, on the one hand, directing the air discharged from the power assembly into the sludge collection cylinder through the first air outlet path; on the other hand, by concealing the air outlet below the power assembly rather than on the machine body, it is easier to design the flow path of the first air outlet path inside the machine, thus improving the overall aesthetics of the machine.

[0020] In conjunction with the first aspect of this application, in an optional embodiment, the air outlet includes a first air outlet and a second air outlet. The first air outlet forms a first air outlet path, which faces the sludge collection cylinder. The second air outlet forms a second air outlet path, which connects to the outside. This arrangement divides the air outlet path into two paths. The first air outlet path intersects with the inlet air path within the sludge collection cylinder, while the second air outlet path discharges the remaining airflow to the outside, which is beneficial for motor cooling and impeller suction. Furthermore, since the overall air outlet is located below the power assembly and opposite its bottom, the airflow from the second air outlet path is guided to the area below the power assembly for discharge, preventing the airflow from directly blowing onto the user and improving user comfort.

[0021] In conjunction with the first aspect of this application, in an optional embodiment, an air guiding assembly is provided between the sludge collection cylinder and the power assembly. The air guiding assembly has an air guiding channel, a first end of which extends to the first air outlet, and a second end of which extends to the sludge collection cylinder. The first air outlet and the sludge collection cylinder are connected through the air guiding channel. By providing the air guiding assembly, communication between the first air outlet and the sludge collection cylinder is achieved, optimizing the internal air duct structure. Simultaneously, the air guiding assembly also provides space for some components, optimizing the layout of components within the machine.

[0022] In conjunction with the first aspect of this application, in an optional embodiment, the top of the sludge collection cylinder is provided with a first air inlet hole for the air inlet path to flow through. The sludge collection cylinder is also provided with a guide plate, which guides the first air outlet path within the sludge collection cylinder to intersect with the air inlet path. By setting the guide plate, the first air outlet path is effectively guided, ensuring that its path merges with the air inlet path. Furthermore, the guide plate also intercepts solid dirt and wastewater, facilitating the return of dirt and moisture to the bottom of the sludge collection cylinder, further reducing the probability of blockage, and ensuring the cleanliness of the second end of the air guide channel.

[0023] In conjunction with the first aspect of this application, in an optional embodiment, the guide plate extends from the direction of the air guide channel toward the first air inlet, so that the air discharged from the air guide channel is blown toward the first air inlet. This arrangement causes the air flowing out of the air guide channel to be guided by the guide plate toward the first air inlet, disturbing the air intake path and facilitating the settling of dirt.

[0024] In conjunction with the first aspect of this application, in an optional embodiment, the sludge collection cylinder is provided with a suction pipe and a sludge shield covering the suction pipe. The first air inlet is located outside the sludge shield. The air inlet path passes sequentially through the suction pipe and the sludge shield, and then flows from the sludge shield to the first air inlet. By setting up the suction pipe and the sludge shield, the air inlet path is first guided to the sludge shield, thereby intercepting larger solid dirt and sewage, buffering the suction airflow, and preventing larger solid dirt and sewage from being directly sucked into the machine along the air inlet path, causing blockage or machine damage.

[0025] In conjunction with the first aspect of this application, in an optional embodiment, the sludge collection cylinder and the air guiding assembly are both disposed on the air outlet housing, and the sludge collection cylinder, the air guiding assembly, and the power assembly are sequentially disposed on the air outlet housing along the direction of the air inlet path. This arrangement causes the air outlet housing to extend along the height direction of the floor scrubber body, occupying most of the height of the body, and using the air outlet housing as the main support component and mounting body, thereby simplifying the body structure, facilitating the installation of each component, and improving the fitting accuracy of each component.

[0026] In conjunction with the first aspect of this application, in an optional embodiment, an air outlet gap is provided between the sludge collection cylinder and the air outlet housing, and between the air guiding component and the air outlet housing. The second air outlet is connected to the air outlet gap, so that the second air outlet path is connected to the outside. This arrangement ensures that the air outlet gap covers all mating surfaces between the sludge collection cylinder and the air outlet housing, and between the air guiding component and the air outlet housing, thereby greatly increasing the airflow of the second air outlet path and ensuring both air outlet and suction effects.

[0027] The cleaning equipment provided in this application introduces a portion of the exhaust air path into the sludge collection tank, which obstructs or disturbs the intake air path to a certain extent. This helps dirt fall back to the bottom of the sludge collection tank, preventing air vent blockage and dirt adhesion. Furthermore, when the floor scrubber is laid flat during operation, the first exhaust air path introduced into the sludge collection tank can counteract the surge of wastewater, thereby preventing wastewater from flowing back to the power unit. This also eliminates the need for the existing complex obstruction structure, which is beneficial for the miniaturization of the sludge collection tank and the overall cleaning equipment. The design of the baffle plate ensures that the path of the first exhaust air path can merge with the intake air path and can intercept solid dirt and wastewater, further reducing the probability of blockage. In addition, through the design of the exhaust air path, another portion of the exhaust airflow is guided to be discharged below the power unit, avoiding direct blowing towards the user and improving user comfort.

[0028] Additional aspects and advantages of this application 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 this application. Attached Figure Description

[0029] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0030] Figure 1 This is an overall schematic diagram of the body of the cleaning equipment provided in the embodiments of this application;

[0031] Figure 2 A partial cross-sectional view of the body of the cleaning equipment provided in the embodiments of this application. Figure 1 ;

[0032] Figure 3 A schematic diagram of the air inlet and outlet air ducts of the cleaning equipment provided in the embodiments of this application;

[0033] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0034] Figure 5 for Figure 2 Enlarged view of point B in the middle;

[0035] Figure 6 A partial cross-sectional view of the body of the cleaning equipment provided in the embodiments of this application. Figure 2 ;

[0036] Figure 7 A schematic diagram of the air outlet housing of the cleaning equipment provided in the embodiments of this application. Figure 1 ;

[0037] Figure 8A schematic diagram of the air outlet housing of the cleaning equipment provided in the embodiments of this application. Figure 2 ;

[0038] Figure 9 A schematic diagram of the air guiding assembly of the cleaning equipment provided in the embodiments of this application;

[0039] Figure 10 A schematic diagram of the sealing assembly of the cleaning equipment provided in this application embodiment. Figure 1 ;

[0040] Figure 11 A schematic diagram of the sealing assembly of the cleaning equipment provided in this application embodiment. Figure 2 ;

[0041] Figure 12 A schematic diagram illustrating the cooperation of components such as the sealing assembly and the dirt shield of the cleaning equipment provided in the embodiments of this application;

[0042] Figure 13 This is a schematic diagram of the dirt shield of the cleaning equipment provided in the embodiments of this application.

[0043] Figure label:

[0044] 1. Power assembly; 11. Motor; 12. Motor side housing; 121. First air outlet; 13. Motor bottom housing; 131. Second air inlet; 132. Second air outlet;

[0045] 2. Air outlet housing; 21. Receiving cavity; 211. Third air outlet; 212. Third air inlet; 22. Base; 23. Air outlet gap;

[0046] 3. Air guiding assembly; 31. Air guiding channel; 32. Air filter; 33. Air inlet channel;

[0047] 4. Sludge collection cylinder; 41. Sealing assembly; 411. Sealing top cover; 4111. Guide plate; 4112. First air inlet; 412. Sealing bottom plate; 42. Filter screen; 43. Sludge suction pipe; 44. Sludge shield; 441. Air inlet grille;

[0048] 5. Battery assembly;

[0049] 61. Air intake path; 62. First air outlet path; 63. Second air outlet path. Detailed Implementation

[0050] To make the technical solution and beneficial effects of this utility model more apparent and understandable, a detailed description is provided below by listing specific embodiments. The accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application pertains.

[0051] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. In other words, they should not be construed as limitations on this utility model.

[0052] In this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating the relative importance of the indicated features or the number of indicated technical features. Therefore, a feature specified as "first" or "second" can explicitly indicate that at least one of those features is included. In the description of this utility model, "multiple" means at least two, such as two, three, etc.; "several" means at least one, such as one, two, three, etc., unless otherwise explicitly specified.

[0053] In this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "linking," "fixing," and "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also 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.

[0054] In this utility model, unless otherwise explicitly defined, the terms "above," "on top of," "above," "over," "below," "below," "below," or "below" for "first feature above second feature" can refer to direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Furthermore, "above," "above," and "over" for "first feature above second feature" can mean the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. Similarly, "below," "below," and "below" for "first feature below second feature" can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0055] This disclosure provides a cleaning device, such as a vacuum cleaner or a floor scrubber. This embodiment uses a floor scrubber as an example. The cleaning device includes a floor brush (not shown) and a body connected to the floor brush. The floor brush can be rotatably connected to the body to facilitate cleaning operations. Figure 1 , Figure 2 , Figure 6 The main structure of the machine body is shown, in which the sludge collection cylinder 4 is installed on the machine body as part of the machine body and is used to collect the cleaned-off dirt, such as solid dirt and sewage. The sludge collection cylinder 4 is detachably fixed to the machine body, thereby facilitating the cleaning of the sludge collection cylinder 4.

[0056] like Figure 1 , Figure 2 , Figure 6 As shown, the machine body is also equipped with a power assembly 1. The power assembly 1 may include, for example, an impeller and a motor 11 that drives the impeller to rotate. The motor 11 drives the impeller to rotate, thereby generating negative pressure and providing suction force to the floor brush, causing the floor brush to suck up the dirt from the surface to be cleaned. Through the pipe between the floor brush and the dirt collection cylinder 4, the dirt is sucked into the dirt collection cylinder 4 for collection. The top of the dirt collection cylinder 4 has a first air inlet 4112. The suction airflow passes through the first air inlet 4112 and continues until it reaches the power assembly 1, and then is discharged through the air outlet.

[0057] In an alternative embodiment, the sludge collection cylinder 4 and the power assembly 1 may also be mounted on the floor brush as needed.

[0058] As described in the background section, during use, dirt easily accumulates at the first air inlet 4112 at the top of the dirt collection tank 4, making cleaning the tank inconvenient. Furthermore, when suctioning heavy dirt, the dirt accumulation worsens, potentially causing air vent blockage and reduced suction power. A smaller air vent leads to increased airflow, making it easier for water vapor to flow towards the power component 1. This water vapor can seep into the power component 1 or be expelled through the air outlet, potentially causing damage or failure of the power component 1 or water spraying from the machine's exhaust. Particularly when cleaning confined spaces, such as under beds or sofas, the machine needs to be in a horizontal position. In this scenario, compared to cleaning spacious areas, the almost horizontal position of the dirt collection tank 4 makes it easier for wastewater to flow back through the first air inlet 4112 to the power component 1 under the suction airflow, potentially damaging it. The "horizontal" position refers to an angle of 0-30 degrees between the machine body and the surface to be cleaned.

[0059] Moreover, nowadays, the power components of floor scrubbers are becoming increasingly powerful, which also increases the risk of dirt getting into the power components. This is especially true when the machine is lying flat, as the air inlet of the power component is closer to the dirt in the collection tank, making the risk of dirt getting in even greater.

[0060] Based on this, current technologies have developed solutions that use various baffles to block dirt. By extending the gas flow path, the probability of dirt entering the power components is reduced. However, this method leads to a smaller capacity of the dirt collection cylinder, and the difficulty of cleaning the dirt also increases after it adheres.

[0061] Therefore, this application proposes a solution that utilizes the self-suction and exhaust principle of the power component to prevent dirt from entering the power component, without occupying the space of the dirt collection cylinder, and can effectively prevent dirt from being sucked into the power component.

[0062] The cleaning equipment in this embodiment includes a sludge collection cylinder 4, a power unit 1, and an air outlet housing 2.

[0063] The power assembly 1 is used to provide suction force to form an air intake path 61 through the sludge collection cylinder 4;

[0064] The power unit 1 is housed within the air outlet housing 2, and the air outlet housing 2 has an air outlet.

[0065] The air outlet is at least partially connected to the sludge collection cylinder 4 to form a first air outlet path 62. The first air outlet path 62 flows in the opposite direction to the air inlet path 61, and the first air outlet path 62 and the air inlet path 61 intersect inside the sludge collection cylinder 4.

[0066] The cleaning device of this embodiment introduces a first exhaust air path 62, which is opposite to the air inlet path 61, into the sludge collection cylinder 4. This causes the first exhaust air path 62 and the air inlet path 61 to intersect within the sludge collection cylinder 4. The first exhaust air path 62 obstructs or disturbs the air inlet path 61 carrying dirt, helping the dirt fall back to the bottom of the sludge collection cylinder 4. This prevents the first air inlet 4112 from becoming clogged and dirt from adhering to the walls, thus improving the dirt-adhesive phenomenon and facilitating the cleaning of the sludge collection cylinder 4. Therefore, the above solution ensures that dirt or moisture is not sucked into the power assembly 1, while also preventing dirt from adhering to dead corners in the sludge collection cylinder 4.

[0067] Furthermore, when the cleaning equipment is specifically a floor scrubber, the sludge collection cylinder 4 can be used to collect sewage. In other words, the sludge collection cylinder 4 can be a sewage tank. At this time, the air inlet duct 61 will also contain water vapor. The water vapor is also intercepted by the obstruction or disturbance of the air inlet duct 61 by the first air outlet duct 62, preventing the water vapor from penetrating into the power component 1 along with the air inlet duct 61 and causing damage to the power component 1. It can also prevent water from spraying out of the machine's air outlet.

[0068] Furthermore, the sludge collection cylinder 4 can be used to collect sewage. The sludge collection cylinder is installed on the machine body. The first air outlet 62 and the air inlet 61 intersect inside the sludge collection cylinder 4, thereby offsetting part of the suction force when the machine body is in a flat position, and preventing sewage from entering the power component 1 under the action of suction force. In special scenarios where a floor scrubber is used to clean the floor in confined spaces, such as under beds or sofas, the scrubber body needs to be placed roughly parallel to the ground to achieve cleaning. Optionally, the cleaning equipment may include a floor brush and a body rotatably connected to the floor brush. The sludge collection tank is installed on the body. When the body is rotated relative to the floor brush to be roughly parallel to the surface to be cleaned, the sludge collection tank 4 is in a nearly horizontal state. The wastewater in the sludge collection tank 4 is closer to the first air inlet 4112. The wastewater is more likely to flow back to the power component 1 under the guidance of the suction airflow through the first air inlet 4112. At this time, the first air outlet 62 introduced into the wastewater tank can offset the surge of wastewater, thereby preventing the wastewater from flowing back to the power component. This eliminates the need for the existing complex blocking structure, has a good anti-backflow effect, and is conducive to the miniaturization design of the sludge collection tank and the overall cleaning equipment.

[0069] In some optional embodiments, the air outlet is located below the power assembly 1 and at least partially faces the sludge collection cylinder 4, so that the air discharged from the power assembly 1 can enter the sludge collection cylinder 4. This arrangement facilitates the flow of air discharged from the power assembly 1 into the sludge collection cylinder 4 via the first air outlet path 62. Furthermore, compared to the prior art where the air outlet of the power assembly 1 is commonly located directly on the housing of the power assembly 1, with the outlet exposed on the machine surface, this application places the air outlet below the power assembly 1 and opposite its bottom, thus concealing the air outlet below the power assembly 1 rather than on the machine body. This facilitates the design of the flow channel for the first air outlet path 62 inside the machine, improving the overall aesthetics of the machine. Specifically, see... Figure 4 As shown, the power assembly 1 includes a motor housing surrounding the motor 11. The motor housing includes a motor side shell 12 and a motor bottom shell 13. The motor side shell 12 is positioned above the motor bottom shell 13. The motor side shell 12 has several first air outlets 121. The bottom wall of the motor bottom shell 13 has a second air inlet 131 in the middle for the air inlet passage 61 to pass through. The bottom wall of the motor bottom shell 13 has several second air outlets 132 around the second air inlet 131. The several first air outlets 121 are located within the motor... A mesh-like structure is formed on the side shell 12, and a number of second air outlets 132 form a grid-like structure on the bottom wall of the motor bottom shell 13. After the airflow passes through the first air outlet 121, it is discharged from the motor 11 housing through the second air outlet 132. The motor bottom shell 13 corresponds to and is surrounded by the air outlet shell 2. The air outlet shell 2 has a receiving cavity 21 for accommodating the motor bottom shell 13. The air outlet of the air outlet shell 2 corresponds to the second air outlet 132 of the motor bottom shell 13 and is set on the bottom wall of the receiving cavity 21 of the air outlet shell 2.

[0070] Optionally, the air outlet includes a first air outlet and a second air outlet. The first air outlet forms a first air outlet path 62, which faces the sludge collection cylinder 4. The second air outlet forms a second air outlet path 63, which connects to the outside. Dividing the air outlet path into two paths, the first air outlet path 62 intersects with the inlet air path 61 within the sludge collection cylinder 4. The second air outlet path 63 discharges the remaining airflow to the outside, which is beneficial for heat dissipation of the motor 11 and impeller suction. Furthermore, since the overall air outlet is located below the power assembly 1 and opposite its bottom, the airflow from the second air outlet path 63 is guided to the bottom of the power assembly 1 for discharge, preventing the airflow from directly blowing onto the user and improving user comfort. Specifically, see... Figure 4 , Figure 7 , Figure 8As shown, the air outlet housing 2 has a third air inlet hole 212 in the middle of the bottom wall of its accommodating cavity 21 for the air inlet passage 61 to pass through. The bottom wall of the accommodating cavity 21 has an air outlet around the third air inlet hole 212. The air outlet includes several third air outlet holes 211 corresponding to the second air outlet hole 132 of the motor bottom housing 13. The several third air outlet holes 211 form a grid-like structure on the bottom wall of the accommodating cavity 21 of the air outlet housing 2. The first air outlet includes at least one of the several third air outlet holes 211 for connecting to the sludge collection cylinder 4 to form the first air outlet passage 62. The second air outlet includes the remaining third air outlet holes 211 for connecting to the outside to form the second air outlet passage 63.

[0071] like Figure 3 The diagram shows the air inlet path 61 and the air outlet path of the cleaning equipment. The dashed arrows indicate the approximate path of the air inlet path 61, while the solid arrows divide the path into the first air outlet path 62 leading to the sludge collection cylinder 4 and the second air outlet path 63 leading to the outside. The first air outlet path 62 and the air inlet path 61 form an angle, which can be greater than 0° and less than or equal to 180°.

[0072] In some alternative embodiments, such as Figures 2-5 As shown, an air guide assembly 3 is provided between the sludge collection cylinder 4 and the power assembly 1. The air guide assembly 3 has an air guide channel 31. The first end of the air guide channel 31 extends to the first air outlet, and the second end of the air guide channel 31 extends to the sludge collection cylinder 4. The first air outlet and the sludge collection cylinder 4 are connected through the air guide channel 31. By setting the air guide assembly 3, the first air outlet and the sludge collection cylinder 4 are connected, optimizing the internal air duct structure. At the same time, the air guide assembly 3 also provides space for some components, optimizing the layout of components inside the machine. For example, the middle part of the air guide assembly 3 has an air inlet channel 33 for the air inlet path 61 to pass through. The air guide channel 31 is set on both sides of the air inlet channel 33. An air filter 32 is set in the air inlet channel 33. The air filter 32 filters some water vapor and fine dust before the airflow reaches the power assembly 1.

[0073] In some alternative embodiments, such as Figure 5 , Figure 11As shown, the top of the sludge collection cylinder 4 has a first air inlet hole 4112 for the air inlet passage 61 to flow through. The sludge collection cylinder 4 also has a guide plate 4111, which guides the first air outlet passage 62 within the sludge collection cylinder 4 to intersect with the air inlet passage 61. By setting the guide plate 4111, the first air outlet passage 62 is effectively guided, ensuring that its path merges with the air inlet passage 61. Furthermore, the guide plate 4111 also intercepts solid dirt and wastewater, facilitating the return of dirt and moisture to the bottom of the sludge collection cylinder 4, further reducing the probability of blockage, and ensuring the cleanliness of the second end of the air guide channel 31. Specifically, as... Figures 10-12 As shown, a sealing assembly 41 is installed inside the sludge collection cylinder 4. The sealing assembly 41 includes a sealing top cover 411 located at the top of the sludge collection cylinder 4 to seal the top opening of the sludge collection cylinder 4. A first air inlet 4112 is provided on the sealing top cover 411. Optionally, two first air inlets 4112 are provided to facilitate the collection and suction of airflow from both sides. Two guide plates 4111 are provided, respectively on both sides of the sealing top cover 411. The guide plates 4111 are located on the top of the sealing cylinder 411. The cover 411 extends downward in the circumference and corresponds to the second end of the air guide channel 31 on both sides, thereby guiding the first air outlet channel 62 and the air inlet channel 61 to intersect in the sludge collection cylinder 4; the guide plate 4111 and the sealing top cover 411 are integrally injection molded, simplifying the parts; in other optional embodiments, the guide plate 4111 can also be set on other components, for example, it can be directly set at the second end of the air guide channel 31, or set at an appropriate position in the sludge collection cylinder 4, etc. The sealing assembly 41 also includes a sealing bottom plate 412 located at the bottom, the sealing bottom plate 412 is set at the middle position of the sludge collection cylinder 4, and a filter screen plate 42 is provided on the sealing bottom plate 412. The filter screen plate 42 has a number of filter holes to intercept larger dust, hair, etc., to achieve dirt separation or dry and wet separation in the sludge collection cylinder 4; a sealing ring is fitted on the outer periphery of the sealing top cover 411 and the sealing bottom plate 412 to seal with the inner wall of the sludge collection cylinder 4.

[0074] Furthermore, the guide plate 4111 extends from the air guide channel 31 toward the first air inlet 4112, so that the air discharged from the air guide channel 31 is blown toward the first air inlet 4112. This arrangement causes the air flowing out of the air guide channel 31 to be guided by the guide plate 4111 toward the first air inlet 4112, disturbing the air intake path and facilitating the return of dirt.

[0075] Further optional, such as Figure 5 , Figure 11As shown, the guide plate 4111 extends at an angle away from the air guide channel 31. That is, after extending downward to below the second end of the air guide channel 31, the guide plate 4111 continues to extend downward at an angle, with the angled extension direction towards the first air inlet 4112. This arrangement allows the guide plate 4111 to guide the first air outlet 62 to blow air obliquely downward towards the first air inlet 4112, enhancing the disturbance effect on the air inlet 61 and making it more conducive to the fallback of dirt. Of course, depending on specific needs, the guide plate 4111 can also be configured to extend downward to below the second end of the air guide channel 31 and then extend horizontally towards the first air inlet 4112.

[0076] In some alternative embodiments, such as Figure 5 , Figure 12 As shown, the sludge collection cylinder 4 is equipped with a suction pipe 43 and a sludge shield 44 covering the suction pipe 43. The first air inlet 4112 is located outside the sludge shield 44. The air inlet path 61 passes through the suction pipe 43 and the sludge shield 44 in sequence, and then flows from the sludge shield 44 to the first air inlet 4112. By setting up the suction pipe 43 and the sludge shield 44, the air inlet path 61 is first guided to the sludge shield 44, thereby intercepting larger solid dirt and sewage, buffering the suction airflow, and preventing larger solid dirt and sewage from being directly sucked into the machine through the air inlet path 61, causing blockage or machine damage. Specifically, after the suction pipe 43 passes through the sealing bottom plate 412 and the filter screen plate 42, it cooperates with the dirt baffle 44 on the upper part of the dirt collection cylinder 4. The dirt baffle 44 can be fixedly installed on the sealing top cover 411. The cover of the dirt baffle 44 is offset from the first air inlet 4112 to avoid blocking the first air inlet 4112; Figure 13 As shown, the top mounting surface of the dirt shield 44 that cooperates with the top cover 411 can also be provided with an air inlet grille 441 corresponding to the first air inlet hole 4112, so as to play a certain role in intercepting solid dirt.

[0077] In some alternative embodiments, such as Figure 1 , Figure 2 , Figure 6 As shown, the sludge collection cylinder 4 and the air guiding assembly 3 are both mounted on the air outlet housing 2. The sludge collection cylinder 4, the air guiding assembly 3, and the power assembly 1 are sequentially arranged on the air outlet housing 2 along the direction of the air inlet path 61. This arrangement causes the air outlet housing 2 to extend along the height of the floor scrubber body, occupying most of the machine's height. Using the air outlet housing 2 as the main support component and mounting body simplifies the machine structure, facilitates the installation of each component, and improves the precision of the component's fit. Figure 2 , Figure 7 , Figure 8As shown, the top of the air outlet housing 2 has a cavity 21 for accommodating the motor base housing 13, and the bottom has a base 22 for placing the sludge collection cylinder 4. The base 22 has a through hole for the suction pipe 43 to pass through. The air guide assembly 3 is located between the sludge collection cylinder 4 and the air outlet, and the power assembly 1 is located inside the cavity 21, thereby realizing the sequential installation of the sludge collection cylinder 4, the air guide assembly 3, and the power assembly 1 on the air outlet housing 2.

[0078] Furthermore, such as Figure 3 , Figure 4 As shown, there are air outlet gaps 23 between the sludge collection cylinder 4 and the air outlet housing 2, and between the air guide component 3 and the air outlet housing 2. The second air outlet is connected to the air outlet gaps 23, so that the second air outlet path 63 can be connected to the outside. That is to say, the aforementioned air outlet gaps 23 are distributed on all mating surfaces between the sludge collection cylinder 4 and the air outlet housing 2, and between the air guide component 3 and the air outlet housing 2. This greatly increases the airflow of the second air outlet path 63. Optionally, the airflow reaches 3-5 times the airflow of the inlet, ensuring the air outlet effect and the suction effect.

[0079] Furthermore, such as Figure 6 As shown, a battery assembly 5 is also provided above the power assembly 1 to supply power to the power assembly 1 and serve as the power source for the entire machine.

[0080] The cleaning equipment of this application optimizes the internal airflow of the machine, introducing a portion of the exhaust air into the sludge collection tank. This partially obstructs or disturbs the intake airflow 61, helping dirt to fall back to the bottom of the collection tank and preventing vent blockage and dirt adhesion. Furthermore, when the floor scrubber is laid flat, the first exhaust airflow 62 introduced into the collection tank can counteract the surge of wastewater, thus preventing wastewater from flowing back to the power unit. This also eliminates the need for existing complex obstruction structures, contributing to the miniaturization of the collection tank and the overall cleaning equipment. The deflector design ensures that the path of the first exhaust airflow 62 can converge with the intake airflow 61, and can intercept solid dirt and wastewater, further reducing the probability of blockage. In addition, through the design of the exhaust airflow, another portion of the exhaust airflow is guided to be discharged below the power unit, avoiding direct airflow towards the user and improving user comfort.

[0081] It should be understood that the above embodiments are exemplary and are not intended to encompass all possible implementations included in the claims. Various modifications and changes can be made to the above embodiments without departing from the scope of this disclosure. Similarly, the various technical features of the above embodiments can be arbitrarily combined to form other embodiments of this application that may not be explicitly described. Therefore, the above embodiments only illustrate several implementations of this application and do not limit the scope of protection of this patent application.

Claims

1. A cleaning apparatus, characterized by, The cleaning device comprises a dust collecting cylinder (4), a power assembly (1), an air outlet shell (2), The power assembly (1) is used for providing suction force to form an air inlet wind path (61) through the dust collecting cylinder (4). The power assembly (1) is accommodated in the air outlet shell (2), and the air outlet shell (2) has an air outlet. The air outlet is at least partially communicated with the dust collecting cylinder (4) to form a first air outlet wind path (62); the first air outlet wind path (62) is opposite to the air inlet wind path (61) in flow direction, and the first air outlet wind path (62) and the air inlet wind path (61) intersect in the dust collecting cylinder (4).

2. The cleaning apparatus of claim 1, wherein, The cleaning device comprises a dust collecting cylinder (4), a power assembly (1), an air outlet shell (2), The dust collecting cylinder (4) can be used for collecting sewage, and the first air outlet wind path (62) can offset part of the suction force to hinder the sewage from entering the power assembly (1) under the action of the suction force when the machine body is in a lying state.

3. The cleaning apparatus of claim 1, wherein, The lying state refers to that the angle between the machine body and the surface to be cleaned is 0-30 degrees.

4. The cleaning apparatus of claim 1, wherein, The air outlet is located below the power assembly (1) and at least partially faces the dust collecting cylinder (4), so that the air discharged by the power assembly (1) can enter the dust collecting cylinder (4).

5. The cleaning apparatus of claim 4, wherein, The air outlet comprises a first air outlet and a second air outlet, the first air outlet is used for forming the first air outlet wind path (62) facing the dust collecting cylinder (4), and the second air outlet is used for forming a second air outlet wind path (63) communicated to the outside.

6. The cleaning apparatus of claim 5, wherein, A gas guide assembly (3) is arranged between the dust collecting cylinder (4) and the power assembly (1), the gas guide assembly (3) has a gas guide channel (31), a first end of the gas guide channel (31) extends to the first air outlet, and a second end of the gas guide channel (31) extends to the dust collecting cylinder (4), the first air outlet and the dust collecting cylinder (4) are communicated through the gas guide channel (31).

7. The cleaning apparatus of claim 6, wherein, A first air inlet hole (4112) for the air inlet wind path (61) to pass through is formed in the top of the dust collecting cylinder (4), and a flow guide plate (4111) is further arranged in the dust collecting cylinder (4), the flow guide plate (4111) is used for guiding the first air outlet wind path (62) to intersect with the air inlet wind path (61) in the dust collecting cylinder (4).

8. The cleaning apparatus of claim 6, wherein, The flow guide plate (4111) extends from the direction of the gas guide channel (31) to the first air inlet hole (4112), so that the air discharged by the gas guide channel (31) blows towards the first air inlet hole (4112). The dust collecting cylinder (4) is provided with a sewage suction pipe (43) and a sewage blocking cover (44) covering above the sewage suction pipe (43), the first air inlet hole (4112) is located outside the sewage blocking cover (44), and the air inlet wind path (61) sequentially passes through the sewage suction pipe (43) and the sewage blocking cover (44) and then flows from the sewage blocking cover (44) to the first air inlet hole (4112).

9. The cleaning apparatus of claim 5, wherein, The dust collecting cylinder (4) and the air guide assembly (3) are arranged on the air outlet shell (2), and the dust collecting cylinder (4), the air guide assembly (3) and the power assembly (1) are sequentially arranged on the air outlet shell (2) along the direction of the air inlet air path (61).

10. The cleaning apparatus of claim 9, wherein, The dust collecting cylinder (4) and the air guide assembly (3) are arranged on the air outlet shell (2), and the dust collecting cylinder (4), the air guide assembly (3) and the power assembly (1) are sequentially arranged on the air outlet shell (2) along the direction of the air inlet air path (61). The dust collecting cylinder (4) and the air guide assembly (3) are arranged on the air outlet shell (2), and the dust collecting cylinder (4), the air guide assembly (3) and the power assembly (1) are sequentially arranged on the air outlet shell (2) along the direction of the air inlet air path (61). The dust collecting cylinder (4) and the air guide assembly (3) are arranged on the air outlet shell (2), and the dust collecting cylinder (4), the air guide assembly (3) and the power assembly (1) are sequentially arranged on the air outlet shell (2) along the direction of the air inlet air path (61). The dust collecting cylinder (4) and the air guide assembly (3) are arranged on the air outlet shell (2), and the dust collecting cylinder (4), the air guide assembly (3) and the power assembly (1) are sequentially arranged on the air outlet shell (2) along the direction of the air inlet air path (61). The dust collecting cylinder (4

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