cleaning equipment

Abstract

This invention discloses a cleaning device, comprising: a body; a housing detachably mounted on the body, the housing including a housing body with an internal cavity, a first opening at the top of a side wall of the housing body communicating with an airflow channel outside the housing; the housing body including a first side wall and a second side wall opposite to each other, the second side wall being above the first side wall when the cleaning device is in a first working state; a liquid inlet mechanism mounted on the housing body, the liquid inlet mechanism having a liquid outlet communicating with the cavity; the distance between the liquid inlet mechanism and the first side wall being greater than the distance between the liquid inlet mechanism and the second side wall; and a rotating assembly fixed on the body, the rotating assembly communicating with the cavity and the airflow channel, the rotating assembly including an air inlet; wherein the housing body is an integral structure with one and only one cavity, and the gas in the cavity enters the airflow channel only through the air inlet of the rotating assembly.

Description

Technical Field

[0001] This invention belongs to the field of robotics technology, and specifically relates to a cleaning device. Background Technology

[0002] As people's living standards improve, cleaning equipment has gradually entered people's homes, helping them to escape from heavy housework and thus gaining popularity. Cleaning equipment typically includes a wastewater tank and a suction component. The suction component creates negative pressure inside the wastewater tank, drawing wastewater from the surface to be cleaned into the tank.

[0003] To prevent liquid from the wastewater tank from entering the suction assembly along with the suction airflow, thus affecting the performance of the suction assembly, a gas-liquid separation structure is installed inside the wastewater tank. This structure is less prone to contamination by dirty water than the wastewater tank itself after a period of use. However, existing gas-liquid separation structures are usually fixed to the wastewater tank, requiring removal during cleaning, making the cleaning process cumbersome. Furthermore, existing structures typically only separate a portion of the airflow within the tank, allowing some air to escape directly from the opening at the top. This results in residual moisture in the escaping gas, which can cause the suction assembly to draw in water, reducing its lifespan. Therefore, it is necessary to improve the existing technology to overcome these shortcomings. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to provide a cleaning device with a reasonable layout.

[0005] To solve the above-mentioned technical problems, the present invention provides a cleaning device, comprising: a body; a housing detachably mounted on the body, the housing including a housing body, the housing body having an internal cavity, the top of the side wall of the housing body having a first opening communicating with an airflow channel outside the housing body; the housing body including a set of opposing first and second side walls, when the cleaning device is in a first working state, the housing body is inclined relative to the surface to be cleaned, and in the vertical direction, the second side wall is located above the first side wall; a liquid inlet mechanism mounted on the housing body, the liquid inlet mechanism having a liquid outlet communicating with the cavity; the distance between the liquid inlet mechanism and the first side wall is greater than the distance between the liquid inlet mechanism and the second side wall; a rotating assembly fixed on the body, the rotating assembly communicating with the cavity and the airflow channel, the rotating assembly being configured to achieve gas-liquid separation of the housing body, the rotating assembly including an air inlet; wherein, the housing body is an integral structure with one and only one cavity, and the gas in the cavity enters the airflow channel only through the air inlet of the rotating assembly.

[0006] Preferably, the housing has a first state connected to the body and a second state detached from the body; in the first state, at least a portion of the rotating assembly extends into the receiving cavity through a first opening; in the second state, that portion of the rotating assembly is removed from the receiving cavity through the first opening.

[0007] Preferably, a first sealing structure is provided on at least one of the areas on the body corresponding to the first opening and on the first opening.

[0008] Preferably, the first sealing structure is located on the body in the area corresponding to the first opening, and the first sealing structure is arranged around the periphery of the rotating component; after the housing is installed on the body, the first sealing structure abuts against the side wall of the housing body and surrounds the first opening.

[0009] Preferably, the first sealing structure is located at the first opening. The first sealing structure is located on the outer wall of the box body and surrounds the outer periphery of the first opening. After the box body is installed on the machine body, the first sealing structure abuts against the machine body and surrounds the rotating component.

[0010] Preferably, the rotating assembly includes an impeller and a drive unit. The impeller is located inside the receiving cavity and has an air inlet formed on it, which communicates with the airflow channel. The drive unit has an output shaft connected to the impeller to drive the impeller to rotate.

[0011] Preferably, the machine body is equipped with a suction device, which is connected to the air inlet of the rotating component through an airflow channel.

[0012] Preferably, a recessed area is formed on the body, and the housing is detachably disposed in the recessed area; wherein, when the housing is installed on the body, the housing is part of the outer shell of the body.

[0013] Preferably, the recessed area has a boss that protrudes towards the box body side, the rotating component is disposed at the boss, and the side wall of the box body has a recessed groove that mates with the boss. The groove wall has a first opening, and at least a portion of the rotating component is removably disposed in the receiving cavity through the first opening.

[0014] Preferably, the cavity is further provided with a solid-liquid separation component, which divides the cavity into at least a first receiving chamber for receiving solid media and a second receiving chamber for receiving liquid media; wherein, the liquid outlet is located in the first receiving chamber, the air inlet is located in the second receiving chamber, and the solid-liquid separation component is provided with a filter structure, so that the solid media in the fluid discharged from the liquid outlet is retained in the first receiving chamber under the action of the filter structure, and the liquid media enters the second receiving chamber through the filter structure.

[0015] The technical solution provided by this invention has the following advantages:

[0016] 1. By fixing the rotating component to the body, on the one hand, since the control unit is located on the body, it is easier to connect the rotating component to the body, making wiring and cabling more convenient and the layout more reasonable; on the other hand, it frees up the space inside the tank, which can improve the utilization rate of the internal space to a certain extent, and the rotating component does not need to be disassembled along with the sewage tank, simplifying the steps of cleaning the sewage tank.

[0017] 2. The box body is an integral structure with one and only one accommodating cavity, which has the advantage of simple structure.

[0018] 3. The first sealing structure ensures that when the suction device is working, the gas in the containment cavity enters the airflow channel only through the air inlet of the rotating component, so that the water content in the airflow entering the airflow channel is small, which has the advantage of good gas-liquid separation effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the cleaning equipment provided by the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the decomposed structure;

[0021] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure;

[0022] Figure 4 This is a schematic diagram showing the positional relationship between the first opening and the first sealing structure in this invention;

[0023] Figure 5 This is an exploded structural diagram of a recessed area on the body with a boss in another embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the housing when the recessed area on the body is provided with a boss, according to another embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the solid-liquid separation component in this invention;

[0026] Figure 8 This is a schematic diagram of the impeller structure in this invention. Detailed Implementation

[0027] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0029] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0030] Please see Figures 1 to 7 As shown, the present invention provides a cleaning device for cleaning a surface (e.g., a horizontal floor). The cleaning device achieves cleaning by spraying a cleaning liquid onto the surface to be cleaned for wet cleaning and by drawing wastewater into its wastewater tank.

[0031] In one illustrative scenario, the cleaning equipment is a floor scrubber used for cleaning floors. It is worth noting that the floor scrubber in the above example is only one applicable scenario for the cleaning equipment; other types of cleaning equipment can also be used, such as floor mops, window cleaners, etc.

[0032] The following description will mainly use a floor scrubber as an example of the cleaning equipment, but as can be seen from the above description, the scope of protection of the embodiments of the present invention is not limited thereto.

[0033] Please see Figures 1 to 3 As shown, the floor scrubber includes a body 700 and a housing 100 detachably mounted on the body 700. The housing 100 is a wastewater tank used to collect dirt generated during floor cleaning. The dirt can be understood as a mixture of solid and liquid media. The body 700 is equipped with a suction device 710, which is a negative pressure generator used to create a suction airflow within the housing 100, thereby drawing the dirt from the floor into the housing 100.

[0034] The box 100 includes a box body (not shown in the figure) and a box lid (not shown in the figure). The box body is hollow inside and has an opening at one end to form a receiving cavity 110 inside the box body. The box body is an integral structure with one and only one receiving cavity 110. The box lid is sealed at the opening of the receiving cavity 110 of the box body.

[0035] Please see Figure 3As shown, the tank body is also provided with a liquid inlet mechanism 200, which has a sludge inlet channel. The liquid inlet mechanism 200 also has a liquid outlet 210 communicating with the sludge inlet channel, and the liquid outlet 210 communicating with the receiving cavity 110 of the tank body. In this embodiment, the liquid outlet 210 of the liquid inlet mechanism 200 is suspended in the receiving cavity 110.

[0036] Specifically, the liquid inlet mechanism 200 is a tubular component that extends along the longitudinal direction of the tank body. The liquid inlet mechanism 200 has a fixed end 211 and a suspended end 212. The fixed end 211 is fixed to the wall of the receiving cavity 110, and the suspended end 212 is suspended within the receiving cavity 110. The liquid outlet 210 is formed on the suspended end 212.

[0037] Please see Figure 4 As shown, a first opening 120 is provided at the top of the side wall of the box body, and the first opening 120 is connected to the airflow channel 711 outside the box body 100. In this embodiment, one end of the airflow channel 711 away from the first opening 120 is connected to the air inlet of the suction device 710, and the other end near the first opening 120 is connected to the receiving cavity 110. That is, the airflow channel 711 is used to connect the receiving cavity 110 of the box body with the suction device. As a result, a suction airflow can be formed in the receiving cavity 110, thereby sucking in external dirt and airflow into the box body 100.

[0038] In this embodiment, the floor scrubber has a first working state when the body of the scrubber is tilted relative to the ground, and a second working state when the body of the scrubber is approximately parallel to the ground. It should be noted that, in this specification, "the body of the scrubber is approximately parallel to the ground" means that the body of the scrubber is parallel to the ground or that the angle between the body of the scrubber and the ground is less than or equal to 10°.

[0039] Specifically, the first working state is the working state when the floor scrubber is cleaning an open environment, such as a living room or hallway without obstructions; the second working state is the working state when the floor scrubber is cleaning a lower environment, such as under a sofa or bed. In order to reach these lower spaces, the body 700 of the floor scrubber must be close to the ground, thus forcing the housing 100 to also be close to the ground. The extreme state in which the body 700 is close to the ground is approximately parallel to the ground, at which point the housing 100 is also approximately parallel to the ground.

[0040] In this embodiment, the housing body includes a set of opposing first sidewalls 101 and second sidewalls 102. The distance between the liquid inlet mechanism 200 and the first sidewall 101 is greater than the distance between the liquid inlet mechanism 200 and the second sidewall 102. That is, the liquid inlet mechanism 200 is distributed close to the second sidewall 102. When the cleaning device is in the first working state described above, the housing body is tilted relative to the ground, and in the vertical direction, the second sidewall 102 is located above the first sidewall 101. The above-mentioned "vertical direction" refers to... Figure 1 The cleaning device is positioned vertically. When the cleaning device is in the second working state, the second side wall 102 is also located above the first side wall 101. Since the distance between the liquid inlet mechanism 200 and the first side wall 101 is greater than the distance between the liquid inlet mechanism 200 and the second side wall 102, the tank 100 can store more sewage between the liquid inlet mechanism 200 and the first side wall 101, thereby increasing the sewage capacity of the tank 100.

[0041] To prevent the liquid medium in the receiving cavity 110 from entering the negative pressure generator along with the suction airflow, the floor scrubber also includes a rotating assembly configured to achieve gas-liquid separation within the casing. The rotating assembly is fixed to the body 700, and the receiving cavity 110 is connected to the aforementioned airflow channel via the rotating assembly. By fixing the rotating assembly to the body 700, firstly, since the control unit is located on the body 700, placing the rotating assembly on the body 700 facilitates wiring connections between the rotating assembly and the body 700, making wiring and cabling more convenient and the layout more rational; secondly, it frees up space inside the casing, thereby improving the utilization rate of the internal space to a certain extent.

[0042] The housing 100 has a first state connected to the body 700 and a second state detached from the body 700. In the first state, please refer to... Figure 3 As shown, at least a portion of the rotating assembly extends into the receiving cavity 110 through the first opening 120. In the second state, please refer to... Figure 2 As shown, this part of the rotating assembly moves out of the receiving cavity 110 through the first opening 120.

[0043] In this embodiment, please continue to refer to Figure 3 and combined Figure 8 As shown, the rotating assembly includes an impeller 400 and a drive component 500. In the first state of the housing 100, the impeller 400 is located within the receiving cavity 110 and is distributed near the second side wall 102. An air inlet 430 is formed on the impeller 400, which communicates with the airflow channel 711. The suction device 710 communicates with the air inlet 430 of the rotating assembly through the airflow channel 711. The impeller 400 has multiple air inlets 430, which are spaced apart in the circumferential direction of the impeller 400.

[0044] To ensure that the gas within the containment cavity 110 enters the airflow channel only through the air inlet 430 of the rotating assembly, and to improve the sealing performance between the housing 100 and the body 700, a first sealing structure 130 is provided between the housing body and the body 700. (See also...) Figures 4 to 6 As shown, a first sealing structure 130 is provided on at least one of the areas on the body 700 corresponding to the first opening 120 and on the first opening 120. That is, the first sealing structure 130 is provided on the body 700, or / and, the first sealing structure 130 is provided at the first opening 120. In this embodiment, preferably, the first sealing structure 130 is an annular seal, such as a rubber sealing ring, silicone sealing gasket, etc. The first sealing structure 130 is provided on the body 700 in the area corresponding to the first opening 120, and the first sealing structure 130 is arranged around the periphery of the rotating component. The first sealing structure 130 is close to the rotating component to prevent airflow from flowing into the airflow channel from the periphery of the rotating component. After the housing 100 is installed on the body 700, the first sealing structure 130 abuts against the side wall of the housing body and surrounds the first opening 120 to prevent airflow from overflowing from the first opening 120. Thus, the gas in the receiving cavity 110 only enters the airflow channel through the air inlet 430 of the rotating component, which has the advantage of good gas-liquid separation effect.

[0045] In another embodiment of the present invention, the first sealing structure 130 is disposed at the first opening 120. Specifically, the first sealing structure 130 is disposed on the outer wall of the housing body and surrounds the outer periphery of the first opening 120. After the housing 100 is installed on the machine body 700, the first sealing structure 130 abuts against the machine body 700 and surrounds the rotating assembly, thereby effectively preventing gas from entering the receiving cavity 110 through the first opening 120.

[0046] In this embodiment, the phrase "at least a portion of the rotating assembly extends into the receiving cavity 110 through the first opening 120" can be understood as at least the impeller 400 in the rotating assembly extending into the receiving cavity 110 through the first opening 120.

[0047] The drive unit 500 is mounted on the body 700. The drive unit 500 has an output shaft 510, which is connected to the impeller 400 to drive the impeller 400 to rotate. This causes the gas medium and liquid medium drawn into the receiving cavity 110 to separate from each other under the action of the centrifugal force of the impeller 400, thereby causing the liquid medium to be retained in the housing 100 and the gas medium to be discharged from the housing 100.

[0048] Regarding the connection between the output shaft 510 and the impeller 400, please refer to the following section in one case: Figure 3 As shown, the output shaft 510 is directly connected to the impeller 400, and the output shaft 510 directly drives the impeller 400 to rotate. At this time, the rotation axis of the impeller 400 is coaxial with that of the output shaft 510.

[0049] In another case, the rotation axis of the impeller 400 can be driven by a belt drive, for example, by a synchronous belt drive, so that the impeller 400 can rotate. In this case, the rotation axis of the impeller 400 is parallel to the output shaft 510.

[0050] When the output shaft 510 directly drives the impeller 400 to rotate, after the housing 100 is connected to the machine body 700, the position of the drive member 500 relative to the receiving cavity 110 can be one of the following: First, the drive member 500 is completely located inside the receiving cavity 110; second, part of the drive member 500 is located inside the receiving cavity 110 and another part is located outside the receiving cavity 110; third, the drive member 500 is completely located outside the receiving cavity 110.

[0051] In this embodiment, preferably, a portion of the drive member 500 is located inside the receiving cavity 110, and another portion is located outside the receiving cavity 110. Furthermore, in the direction of the rotation axis of the impeller 400, the impeller 400 and the drive member 500 partially overlap.

[0052] Please see Figure 2 As shown, a recessed area is formed on the body 700, and the housing 100 is detachably disposed in the recessed area. When the housing 100 is installed on the body 700, the housing 100 becomes part of the outer shell of the body 700.

[0053] In another embodiment of the present invention, please refer to Figure 5 and Figure 6 As shown, a boss 720 protruding towards the box body is formed in the recessed area, and the rotating assembly is disposed at the boss 720. A groove that mates with the boss 720 is formed in the side wall of the box body, and the groove wall is provided with the aforementioned first opening 120. At least the impeller 400 in the rotating assembly is removably disposed in the receiving cavity 110 through the first opening 120.

[0054] By setting the aforementioned boss 720, the installation alignment between the housing 100 and the body 700 can be achieved. During installation, aligning the impeller 400 with the first opening 120 is difficult, time-consuming, and labor-intensive. However, aligning the boss 720 with the aforementioned groove is much easier and more convenient.

[0055] In this embodiment, please continue to refer to Figure 3 As shown, the cavity 110 is also provided with a solid-liquid separation component 300, which divides the cavity 110 into at least a first containment chamber (not shown in the figure) for containing solid media and a second containment chamber (not shown in the figure) for containing liquid media.

[0056] The liquid outlet 210 is located in the first receiving chamber, and the impeller 400 is located in the second receiving chamber. The solid-liquid separation assembly is equipped with a filter structure 303. The solid medium in the fluid (dirt) discharged from the liquid outlet 210 is retained in the first receiving chamber under the action of the filter structure 303, while the liquid medium enters the second receiving chamber through the filter structure 303, so as to achieve the separation of the solid medium and the liquid medium.

[0057] The aforementioned filter structure 303 can be a plurality of filter holes provided on the solid-liquid separation component, or a filter screen provided on the solid-liquid separation component, or other structures with solid-liquid separation function.

[0058] In this embodiment, please refer to Figure 7 As shown, the solid-liquid separation assembly 300 includes a baffle 302, an impeller 400, and a liquid outlet 210 located on opposite sides of the baffle 302. The baffle 302 extends approximately perpendicular to either the first sidewall 101 or the second sidewall 102, dividing the receiving cavity 110 longitudinally into the aforementioned first receiving chamber and second receiving chamber. The second receiving chamber is located closer to the lid side than the first receiving chamber.

[0059] The baffle 302 includes a central region C, the projection of which onto the longitudinal direction of the housing 100 completely coincides with the projection of the suspended end of the liquid inlet mechanism 200 onto the longitudinal direction of the housing 100. The central region C is a continuous structure, which can be understood as having no through holes or being a perforated structure. The baffle 302 also includes an extension region surrounding the central region C, on which the aforementioned filter structure 303 is provided. Thus, the liquid medium ejected through the liquid outlet 210 will not be directly sprayed onto the impeller 400.

[0060] In this embodiment, a sleeve 301 is provided on the first end face of the stop plate 302 near the liquid outlet 210, and the sleeve 301 is fitted onto the suspended end of the liquid inlet mechanism 200. That is, the stop plate 302 is connected to the suspended end of the liquid inlet mechanism 200 through the sleeve 301. A second opening 305 is also provided on the sleeve wall of the sleeve 301, and the second opening 305 communicates with the liquid outlet 210. The second opening 305 may face the first side wall 101, or the second side wall 102, or both the first side wall 101 and the second side wall 102.

[0061] The stop plate 302 is also provided with a third opening, at which a flip plate 304 is pivotally connected. The flip plate 304 is pivotally connected to the first end face of the stop plate 302 near the liquid outlet 210. When the suction device 710 is working, the flip plate 304 overcomes its own gravity and covers the third opening under the action of the suction airflow, so that the third opening is in a closed state. At this time, the airflow in the first receiving chamber can only enter the second receiving chamber through the filter structure 303. When the suction device 710 stops working, the flip plate 304 flips towards the first receiving chamber under its own gravity, at which time the third opening is in a closed state.

[0062] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. Based on the embodiments of the present invention, those skilled in the art can make other variations or modifications without creative effort, and all such variations or modifications should fall within the scope of protection of the present invention.

Claims

1. A cleaning device, characterized in that, include: Organism; The housing is detachably mounted on the machine body. The housing includes a housing body with an internal cavity. The top of the side wall of the housing body has a first opening that communicates with an airflow channel outside the housing. The housing body includes a set of opposing first and second side walls. When the cleaning device is in a first working state, the housing body is tilted relative to the surface to be cleaned. In the vertical direction, the second side wall is located above the first side wall. A liquid inlet mechanism is provided on the tank body. The liquid inlet mechanism has a liquid outlet that communicates with the receiving cavity and is suspended inside the receiving cavity. The distance between the liquid inlet mechanism and the first side wall is greater than the distance between the liquid inlet mechanism and the second side wall. A rotating assembly is fixed to the body, the rotating assembly connects the receiving cavity and the airflow channel, the rotating assembly is configured to realize gas-liquid separation of the box body, and the rotating assembly includes an air inlet; The box body is an integral structure with one and only one receiving cavity, and the gas in the receiving cavity enters the airflow channel only through the air inlet of the rotating component.

2. The cleaning equipment as described in claim 1, characterized in that, The housing has a first state connected to the body and a second state detached from the body; in the first state, at least a portion of the rotating assembly extends into the receiving cavity through the first opening; in the second state, that portion of the rotating assembly moves out of the receiving cavity through the first opening.

3. The cleaning equipment as described in claim 1, characterized in that, The machine body has a first sealing structure on at least one of the areas corresponding to the first opening and the first opening.

4. The cleaning equipment as described in claim 3, characterized in that, The first sealing structure is disposed on the body in the area corresponding to the first opening, and the first sealing structure is arranged around the periphery of the rotating assembly; after the housing is installed on the body, the first sealing structure abuts against the side wall of the housing body and surrounds the first opening.

5. The cleaning equipment as described in claim 3, characterized in that, The first sealing structure is located at the first opening. The first sealing structure is located on the outer wall of the box body and surrounds the outer periphery of the first opening. After the box body is installed on the machine body, the first sealing structure abuts against the machine body and surrounds the rotating component.

6. The cleaning equipment as described in claim 1, characterized in that, The rotating assembly includes an impeller and a drive component. The impeller is located within the receiving cavity and has an air inlet formed on it. The air inlet communicates with the airflow channel. The drive component has an output shaft connected to the impeller to drive the impeller to rotate.

7. The cleaning equipment as described in claim 1, characterized in that, The machine body is equipped with a suction device, which is connected to the air inlet of the rotating component through the airflow channel.

8. The cleaning equipment as described in claim 1, characterized in that, A recessed area is formed on the body, and the box is detachably disposed in the recessed area; Wherein, when the housing is installed on the machine body, the housing is part of the outer shell of the machine body.

9. The cleaning equipment as described in claim 8, characterized in that, The recessed area forms a boss that protrudes towards the box body side. The rotating component is disposed at the boss. The side wall of the box body has a recessed groove that mates with the boss. The groove wall has the first opening. At least a portion of the rotating component is removably disposed in the receiving cavity through the first opening.

10. The cleaning equipment as claimed in claim 1, characterized in that, The cavity is further provided with a solid-liquid separation component, which divides the cavity into at least a first receiving chamber for containing solid media and a second receiving chamber for containing liquid media. The liquid outlet is located in the first receiving chamber, the air inlet is located in the second receiving chamber, and the solid-liquid separation component is provided with a filter structure. The solid medium in the fluid discharged from the liquid outlet is retained in the first receiving chamber under the action of the filter structure, and the liquid medium enters the second receiving chamber through the filter structure.

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