Liquid recovery system and surface cleaning device

Abstract

The present disclosure provides a liquid recovery system and a surface cleaning apparatus. The liquid recovery system includes a suction source, a suction nozzle, a recovery tank container, and a filter; the suction nozzle is disposed on a cleaning head in fluid communication with the suction source; the recovery tank container includes a hollow riser forming an inlet flow passage to a recovery chamber defined within the recovery tank container, wherein the hollow riser includes an inlet and an outlet; the filter is detachably installed within the recovery tank container; wherein the filter includes a plate body, a sealing member, and a filter member; the sealing member is located at an edge of the plate body; the sealing member is configured to be able to abut against an inner wall of the recovery chamber to divide the recovery chamber into a sealed first cavity, wherein a bottom end of the recovery tank container is entirely located within the first cavity, and the outlet of the hollow riser is disposed within the first cavity; the filter member is disposed on the plate body to achieve solid filtration from the first cavity to other parts of the recovery chamber.

Description

Technical Field

[0001] This disclosure relates to a liquid recovery system and a surface cleaning device. Background Technology

[0002] A floor scrubber is a cleaning device suitable for home use, primarily used for cleaning and washing household floor surfaces. Existing floor scrubbers typically have water spraying and suction functions; they automatically spray water and scrub the floor, then suck the wastewater and residual dirt into the machine's wastewater tank.

[0003] During operation, the floor scrubber is equipped with a separation fan at the connection between the wastewater tank and the machine body. Although the separation fan can handle some moisture, the direct impact of a large amount of wastewater on the fan can cause it to be submerged and damaged, significantly reducing the overall lifespan of the floor scrubber. Secondly, the wastewater tank of the floor scrubber suffers from flexibility issues in terms of solid-liquid separation and ease of component disassembly.

[0004] In existing floor scrubbers, a guide hood is usually installed in the suction section, and a separate water-blocking chamber is set in the suction port to solve the above-mentioned technical problems. However, the performance of floor scrubbers with this structure is generally not good. Utility Model Content

[0005] This disclosure provides a liquid recovery system and a surface cleaning device.

[0006] According to one aspect of this disclosure, a liquid recovery system is provided, comprising:

[0007] Suction source;

[0008] A suction nozzle is disposed on a cleaning head that is in fluid communication with a suction source;

[0009] A recycling tank container, the recycling tank container including a hollow riser forming an inlet flow channel leading to a defined recycling chamber within the recycling tank container, wherein the hollow riser includes an inlet and an outlet; and

[0010] A filter is detachably installed inside a recycling tank container; wherein the filter includes a plate, a seal, and a filter element; the seal is located at the edge of the plate; the seal is configured to abut against the inner wall of the recycling chamber to partition a sealed first cavity within the recycling chamber, wherein the entire bottom end of the recycling tank container is located within the first cavity, and the outlet of the hollow riser is located within the first cavity; the filter element is disposed on the plate to achieve solid filtration from the first cavity to other parts of the recycling chamber.

[0011] According to at least one embodiment of the liquid recovery system of this disclosure, the plate body includes:

[0012] A first plate extending longitudinally along the recycling tank container, the edge of the first plate abutting against the first sidewall of the recycling tank container via the sealing element;

[0013] A second plate connected to the first plate, the edge of the second plate abutting against the second sidewall of the recycling tank container via the seal; and

[0014] A fourth plate connected to the first plate, the edge of the fourth plate abutting against the third side wall of the recycling tank container via the sealing element;

[0015] The edges of the first plate, the second plate, and the third plate form the edges of the first cavity.

[0016] According to at least one embodiment of the liquid recovery system of this disclosure, the filter includes a drain hole and a fluid conduit, the drain hole being configured to trap solids within the first cavity; the fluid conduit communicating with the drain hole and being configured to deliver at least one of an airflow and a liquid from the first cavity to other parts of the recovery chamber.

[0017] According to at least one embodiment of the liquid recovery system of this disclosure, the fluid conduit has a discharge port disposed on the second plate.

[0018] According to at least one embodiment of the liquid recovery system of this disclosure, a guide cover is provided on the second plate, the guide cover covering the outlet and changing the direction of the fluid discharged from the outlet.

[0019] According to at least one embodiment of the liquid recovery system of this disclosure, the guide cover has a fluid guide port facing away from the vacuum path of the suction source.

[0020] According to at least one embodiment of the liquid recovery system of this disclosure, the filter further includes a third plate extending from the second plate, the third plate dividing the other parts of the recovery chamber into a second cavity and a third cavity.

[0021] According to at least one embodiment of the liquid recovery system of this disclosure, a one-way valve is provided on the third plate to enable unidirectional flow of fluid from the second cavity to the third cavity.

[0022] According to at least one embodiment of the liquid recovery system of this disclosure, the filter further includes a solid-liquid separator removably disposed within the first cavity and near the outlet of the hollow riser.

[0023] According to another aspect of this disclosure, a surface cleaning apparatus is provided, comprising:

[0024] Upright main body;

[0025] A cleaning head is mounted on an upright body and can move on the surface to be cleaned. During the operation of the surface cleaning equipment, the upright body can operate in a manner that is substantially parallel to the surface to be cleaned.

[0026] A liquid supply tank assembly is disposed on the upright body or the cleaning head and is used to supply cleaning liquid to the cleaning head;

[0027] A fluid dispenser, mounted on a cleaning head, wherein the fluid dispenser is in fluid communication with a supply tank assembly to supply cleaning fluid from the supply tank assembly to the cleaning head; and

[0028] The liquid recovery system described above is at least used to recover and store the cleaning liquid after cleaning the surface to be cleaned. Attached Figure Description

[0029] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0030] Figure 1 This is a schematic diagram of the structure of a surface cleaning device according to one embodiment of the present disclosure.

[0031] Figure 2 This is a schematic diagram of the structure of a cleaning head according to one embodiment of the present disclosure.

[0032] Figure 3 This is a schematic diagram of the assembly state of the recycling tank container and filter according to one embodiment of the present disclosure.

[0033] Figure 4 This is a structural schematic diagram of a recycling tank container according to one embodiment of the present disclosure.

[0034] Figure 5 This is a schematic diagram of the structure of a filter according to one embodiment of the present disclosure.

[0035] Figure 6 This is a structural schematic diagram of a filter according to one embodiment of the present disclosure from another angle.

[0036] Figure 7 This is a schematic diagram of a portion of the structure of a filter according to one embodiment of the present disclosure.

[0037] Figure 8 This is a schematic diagram of a solid-liquid separator according to one embodiment of the present disclosure.

[0038] Figure 9 This is a cross-sectional schematic diagram of the assembled state of a recycling tank container and filter according to one embodiment of the present disclosure.

[0039] Figure 10 This is a schematic diagram of the structure of a filter according to another embodiment of the present disclosure.

[0040] Figure 11 This is a structural schematic diagram of a filter according to another embodiment of the present disclosure from another angle.

[0041] Figure 12 This is a cross-sectional schematic diagram of the assembled state of the recycling tank container and filter according to another embodiment of the present disclosure.

[0042] The specific labels in the attached figures are as follows:

[0043] 100 handle part

[0044] 200 Main body

[0045] 300 Liquid Supply Tank Assembly

[0046] 400 Recycling Tank Container

[0047] 410 enclosure

[0048] 420 Hollow riser

[0049] 500 Connecting Part

[0050] 600 Cleaning Head

[0051] 610 roller brush

[0052] 620 suction nozzle

[0053] 800 filter

[0054] 801 First Cavity

[0055] 802 Second cavity

[0056] 803 Third Chamber

[0057] 810 Seals

[0058] 820 filter element

[0059] 821 Drain hole

[0060] 822 Fluid Pipeline

[0061] 830 First Plate

[0062] 840 Second Plate

[0063] 850 Guide Cover

[0064] 851 Fluid Guide Port

[0065] 860 Third Plate

[0066] 870 Check Valve

[0067] 880 Solid-Liquid Separator

[0068] 890 Fourth plate. Detailed Implementation

[0069] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0070] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0071] Unless otherwise stated, the exemplary implementations / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of various implementations / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.

[0072] The use of crosshairs and / or shading in the accompanying drawings is generally used to clarify the boundaries between adjacent components. Thus, unless otherwise stated, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for the specific material, material properties, dimensions, proportions, commonalities between the illustrated components, or any other characteristics, properties, etc., of the components. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, the same reference numerals denote the same components.

[0073] When a component is referred to as being "on" or "above" another component, "connected to," or "joined to" another component, the component may be directly on, directly connected to, or directly joined to the other component, or there may be intermediate components. However, when a component is referred to as being "directly on" another component, "directly connected to," or "directly joined to" another component, there are no intermediate components. Therefore, the term "connection" can refer to a physical connection, an electrical connection, etc., and may or may not have intermediate components.

[0074] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” another component or feature would subsequently be positioned “above” said other component or feature. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0075] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0076] Figure 1 This is a schematic diagram of the structure of a surface cleaning device according to one embodiment of the present disclosure. Figure 2 This is a schematic diagram of the structure of a cleaning head according to one embodiment of the present disclosure.

[0077] The surface cleaning apparatus disclosed herein is configured to perform wet cleaning of a surface to be cleaned, wherein the surface to be cleaned may be a floor surface, preferably a household floor surface. Furthermore, after the surface cleaning apparatus performs wet cleaning of the floor surface, the dirt and liquid (wastewater) remaining from cleaning the surface can be recycled back to the surface cleaning apparatus.

[0078] The surface cleaning device disclosed herein may include an upright body. Specifically, the upright body of the present disclosure may include a handle portion 100 and a main body portion 200. The handle portion 100 is detachably disposed on the main body portion 200. The user can operate the surface cleaning device by operating the handle portion 100, and the upright body can work in a manner substantially parallel to the surface to be cleaned during the operation of the surface cleaning device.

[0079] The handle 100 may be equipped with a user interaction button, which allows the user to control the surface cleaning equipment by triggering the button, such as controlling the start and stop of the surface cleaning equipment, as well as controlling the liquid supply speed and suction power of the suction source.

[0080] The main body 200 is pivotally connected to the cleaning head 600 via the connecting part 500; thus, when the user operates the handle part 100, the cleaning head 600 can be moved on the surface to be cleaned, and the surface to be cleaned can be cleaned by the cleaning head 600.

[0081] In one example, the connector 500 may include a universal joint to allow the body 200 to rotate relative to the cleaning head 600 in two directions. In another example, the connector 500 may include a multi-axis joint that couples the body 200 to the cleaning head 600 to allow the body 200 to rotate relative to the cleaning head 600 in a first direction and a second direction.

[0082] The main body 200 can be pivoted to an upright position (also known as a storage position) via the connecting part 500. In this position, the angle between the main body 200 and the surface of the cleaning head 600 (or the ground) is 80° to 90°, preferably around 80°. In this position, the surface cleaning device is in a self-supporting posture (also known as an upright posture), meaning that the main body 200 can be supported by the cleaning head 600, and an upright posture can be achieved without the aid of other objects.

[0083] The main body 200 can also accommodate components such as the liquid supply tank assembly 300 and the recovery tank container 400. In this disclosure, the liquid supply tank assembly 300 is detachably mounted to the side of the main body 200, and the mounting position can be located on the front side of the main body 200. The recovery tank container 400 is detachably mounted to the side of the main body 200, and the mounting position can be located on the rear side of the main body. In another embodiment, the liquid supply tank assembly 300 of this disclosure can also be disposed on the cleaning head 600.

[0084] In one example, the thickness of the recycling tank container 400 is set to be less than its width, and the height of the liquid supply tank assembly 300 is set to be less than its width. This ensures sufficient capacity and allows the overall height of the surface cleaning equipment to be less than a predetermined height, such as 120mm, after the main body 200 is laid flat.

[0085] The liquid supply tank assembly 300 is used to store the cleaning liquid to be dispensed. Accordingly, the liquid supply tank assembly 300 can be connected and fluidly communicated with a fluid distributor (not shown in the figure), so that the cleaning liquid in the liquid supply tank assembly 300 can be pressurized by the fluid distributor and supplied to the cleaning head 600, or to the surface to be cleaned near the cleaning head 600, thereby enabling wet cleaning of the surface to be cleaned by the cleaning liquid.

[0086] In one example, the fluid dispenser may include a supply pump capable of drawing cleaning liquid from the supply tank assembly 300, pressurizing the cleaning liquid, and supplying it to the outlet component, which then supplies the pressurized cleaning liquid to the roller brush 610 of the cleaning head 600 or to the surface to be cleaned near the roller brush 610.

[0087] In this disclosure, the cleaning liquid can be one or more of any suitable liquid, including but not limited to cleaning water, concentrated detergent, diluted detergent, or mixtures thereof. Furthermore, the cleaning liquid can be a room-temperature cleaning liquid or a high-temperature cleaning liquid.

[0088] The main body 200 has a receiving space. The recycling tank container 400 is detachably installed in the main body 200 and located in the receiving space. When the recycling tank container 400 contains a large amount of liquid, the user can remove the recycling tank container 400, pour out the sewage inside, and clean up the solid waste. At this time, part of the outer surface of the recycling tank container 400 forms part of the outer surface of the surface cleaning device.

[0089] like Figure 2 As shown, the cleaning head 600 of this disclosure may include a roller brush 610 and a suction nozzle 620; wherein the suction nozzle 620 is located behind the roller brush 610, thereby allowing used cleaning liquid and dirt to enter the recycling pipe through the suction nozzle 620 and further flow to the recycling tank container 400.

[0090] Based on the above structure, the surface cleaning equipment disclosed herein can form a liquid recovery system with the recovery tank container 400 at its center.

[0091] Specifically, the liquid recovery system disclosed herein may include components such as a suction source, a suction nozzle, a recovery tank container 400, and a filter 800.

[0092] The suction source disclosed herein can be an electric suction source, which generates negative pressure during operation, and this negative pressure can be applied to the recovery tank container 400. Furthermore, this negative pressure can be supplied to the suction nozzle 620 via the hollow riser 420 and the recovery pipe. In other words, the suction nozzle 620 of this disclosure is in fluid communication with the suction source.

[0093] Figure 3 This is a schematic diagram of the assembly state of the recycling tank container and filter according to one embodiment of the present disclosure. Figure 4 This is a structural schematic diagram of a recycling tank container according to one embodiment of the present disclosure.

[0094] like Figure 3 and Figure 4 As shown, the recycling tank container 400 of this disclosure includes a housing 410 and a hollow riser 420, the hollow riser 420 forming an inlet flow channel leading to a recycling chamber defined within the recycling tank container 400; in a preferred embodiment, the housing 410 can be integrally formed with the hollow riser 420.

[0095] The hollow riser 420 disclosed herein has an inlet and an outlet, so as to Figure 4 As shown, the lower end of the hollow riser 420 forms an inlet, and correspondingly, the upper end of the hollow riser 420 forms an outlet. The inlet of the hollow riser 420 is connected to the suction nozzle 620 through a recovery pipe.

[0096] Figure 5 This is a schematic diagram of the structure of a filter 800 according to one embodiment of the present disclosure. Figure 6 This is a structural schematic diagram of a filter 800 according to one embodiment of the present disclosure from another angle.

[0097] like Figure 5 and Figure 6 As shown, the filter 800 of this disclosure is detachably installed inside the recycling tank container 400; thus, when the filter 800 of this disclosure is installed inside the recycling tank container 400, the filter 800 is capable of filtering solid waste from gases, used cleaning liquids, and mixtures of dirt. When the filter 800 is removed from the recycling tank container 400, the filter 800 can be cleaned.

[0098] Specifically, the filter 800 of this disclosure may include a plate, a seal 810, and a filter element 820; the seal 810 is located at the edge of the plate; the seal 810 is configured to abut against the inner wall of the recovery chamber to separate a sealed first cavity 801 inside the recovery chamber, wherein an outlet is disposed within the first cavity 801; the filter element 820 is disposed on the plate to achieve solid filtration from the first cavity 801 to other parts of the recovery chamber.

[0099] like Figure 5 As shown, the plate body of this disclosure includes a first plate body 830 and a second plate body 840, wherein the first plate body 830 extends longitudinally along the recycling tank container 400, and the edge of the first plate body 830 abuts against the bottom wall and side wall of the recycling tank container 400 through a sealing member 810; the second plate body 840 is connected to the first plate body 830, and the edge of the second plate body 840 abuts against the side wall of the recycling tank container 400 through a sealing member 810; the edges of the first plate body 830 and the second plate body 840 form the edges of the first cavity 801.

[0100] In other words, in the liquid recovery system disclosed herein, the first plate 830, the second plate 840, and a portion of the bottom wall and a portion of the side wall of the recovery tank container 400 together restrict the first cavity 801.

[0101] In this disclosure, the filter element 820 includes a drain hole 821 and a fluid conduit 822. The drain hole 821 is configured to intercept solid waste within a first cavity 801. The fluid conduit 822 communicates with the drain hole 821 and is configured to transport at least one of an airflow and a liquid from the first cavity 801 to other parts of a recovery chamber, wherein the other parts of the recovery chamber are the portions of the recovery chamber other than the first cavity 801.

[0102] In some embodiments, the fluid conduit 822 has an outlet disposed on the second plate 840, whereby gas and liquid can be discharged through the fluid conduit 822 to the top of the second plate 840, and then discharged through the guide cover 850 to the top of the third plate 860.

[0103] In this disclosure, a guide cover 850 is provided on the second plate 840, which covers the outlet and changes the direction of the fluid discharged from the outlet. More preferably, the guide cover 850 has a fluid guide port 851, which faces away from the vacuum path of the suction source. Thus, when gas and liquid are discharged from the fluid guide port 851, the liquid can flow to the second cavity 802 as quickly as possible, instead of flowing rapidly towards the suction source.

[0104] The filter 800 also includes a third plate 860 extending from the second plate 840, which divides the remaining portion of the recovery chamber into a second cavity 802 and a third cavity 803. Taking the recovery tank container 400 as an example where it is configured generally vertically, the third cavity 803 of this disclosure is located above the second cavity 802, and the first cavity 801 is located to the side of the second cavity 802.

[0105] The third plate 860 of this disclosure is provided with a one-way valve 870, which enables unidirectional flow of fluid from the second chamber 802 to the third chamber 803. That is, when the recovery tank container 400 is set approximately vertically, the liquid above the third plate 860 can flow through the one-way valve 870 and flow to the bottom of the third plate 860. In other words, this liquid can flow from the third chamber 803 to the second chamber 802, but this liquid cannot flow from the second chamber 802 to the third chamber 803.

[0106] In other words, when the recycling tank container 400 is set approximately horizontally, the liquid will be blocked by the one-way valve 870, thus preventing it from flowing from the second chamber 802 to the third chamber 803.

[0107] See again Figure 5 The filter disclosed herein also includes a solid-liquid separator 880, which is removably disposed within the first cavity 801 and near the outlet of the hollow riser 420. In one specific embodiment, the first plate 830, the second plate 840, the third plate 860, and the filter element 820 can be integrally formed, and the solid-liquid separator 880 is formed as a separate component and can be mounted onto the filter element 820.

[0108] For example, the two sides of the solid-liquid separator 880 can be detachably fixed to the filter element 820, such that the two fluid channels 822 of the filter element 820 are located on both sides of the solid-liquid separator 880. Furthermore, the bottom plate of the solid-liquid separator 880 of this disclosure is formed as a porous plate, thereby allowing solid waste to be retained by the solid-liquid separator 880, while liquid can flow through the porous plate to the bottom of the solid-liquid separator 880.

[0109] The liquid recovery system disclosed herein can operate in dual modes. Specifically, when faced with complex and varied cleaning scenarios, such as cleaning lightly soiled areas, users can choose not to install a filter, and the dual chambers work together (i.e., the recovery tank container 400 forms a single cavity) to meet the requirements of rapid cleaning. When treating wastewater containing a large amount of impurities, a filter is used to achieve precise separation of solid waste and liquid.

[0110] In the liquid recovery system disclosed herein, the recovery tank container 400 and the filter 800 can be easily disassembled, making it easier for users to clean the liquid recovery system. Users do not need complex tools or professional skills to clean and maintain the liquid recovery system, enhancing user comfort and satisfaction when using surface cleaning equipment. Furthermore, due to the excellent waterproof design of the liquid recovery system disclosed herein, users do not need to worry about damaging the equipment due to improper operation (such as excessive machine tilt), making it more reliable to use.

[0111] Figure 10 This is a schematic diagram of the structure of a filter according to another embodiment of the present disclosure. Figure 11 This is a structural schematic diagram of a filter according to another embodiment of the present disclosure from another angle. Figure 12 This is a cross-sectional schematic diagram of the assembled state of the recycling tank container and filter according to another embodiment of the present disclosure.

[0112] like Figures 10 to 12 As shown, in another embodiment of this disclosure, the recycling tank container 400 is the same as in the first embodiment, and will not be described in detail here.

[0113] The filter structure in this embodiment differs from that in the first embodiment, as will be explained below. Figures 10 to 12 The differences of this filter are explained in detail.

[0114] Furthermore, due to the different filter structures, the shape of the first chamber is also different. In this embodiment, the bottom of the recycling tank container 400 is entirely located within the first chamber, meaning that the bottom of the recycling tank container 400 is not separated by the first plate 830 of the filter.

[0115] In other words, in the filter of this embodiment, the first plate 830 is relatively short and does not extend to the bottom wall of the recycling tank container 400, and accordingly, it does not separate the bottom end of the recycling tank container 400.

[0116] At this time, as Figure 10 and Figure 11 As shown, the edge of the first plate 830 abuts against the first side wall of the recycling tank container via a seal; the first side wall of the recycling tank container is a portion of the side wall of the recycling tank container. Taking the recycling tank container as an example where it is set approximately vertically, the contact line between the edge of the first plate 830 and the side wall of the recycling tank container is set approximately along the longitudinal direction of the recycling tank container.

[0117] The edge of the second plate 840 abuts against the second sidewall of the recycling tank container via a seal; the second sidewall of the recycling tank container is a portion of the sidewall of the recycling tank container. Taking the recycling tank container as an example where it is set approximately vertically, the contact line between the edge of the second plate 840 and the sidewall of the recycling tank container is set approximately along the transverse direction of the recycling tank container, and the edge of the second plate 840 is connected to the upper end of the edge of the first plate 830.

[0118] The fourth plate 890 is connected to the first plate 830, and the edge of the fourth plate 890 abuts against the third side wall of the recycling tank container via a sealing element; the third side wall of the recycling tank container is a part of the side wall of the recycling tank container. Taking the recycling tank container as an example where it is set approximately vertically, the contact line between the edge of the fourth plate 890 and the side wall of the recycling tank container is set approximately along the transverse direction of the recycling tank container, and the edge of the fourth plate 890 is connected to the lower end of the edge of the first plate 830.

[0119] Accordingly, the edges of the first plate 830, the second plate 840, and the fourth plate 890 form the edges of the first cavity, and the first plate 830, the second plate 840, and the fourth plate 890 form the top cover of the first cavity. That is, the first plate 830, the second plate 840, the fourth plate 890, and the entire bottom wall and part of the side wall of the recycling tank container 400 together restrict the first cavity 801.

[0120] Therefore, in this disclosure, a new filter structure is used to achieve different ways of separating the first cavity, the second cavity, and the third cavity.

[0121] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0122] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0123] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A liquid recovery system, characterized in that, include: Suction source; A suction nozzle is disposed on a cleaning head that is in fluid communication with a suction source; A recycling tank container, the recycling tank container including a hollow riser forming an inlet flow channel leading to a defined recycling chamber within the recycling tank container, wherein the hollow riser includes an inlet and an outlet; and A filter is detachably installed inside a recycling tank container; wherein the filter includes a plate, a seal, and a filter element; the seal is located at the edge of the plate; the seal is configured to abut against the inner wall of the recycling chamber to partition a sealed first cavity within the recycling chamber, wherein the entire bottom end of the recycling tank container is located within the first cavity, and the outlet of the hollow riser is located within the first cavity; the filter element is disposed on the plate to achieve solid filtration from the first cavity to other parts of the recycling chamber.

2. The liquid recovery system according to claim 1, characterized in that, The plate body includes: A first plate extending longitudinally along the recycling tank container, the edge of the first plate abutting against the first sidewall of the recycling tank container via the sealing element; A second plate connected to the first plate, the edge of the second plate abutting against the second sidewall of the recycling tank container via the seal; and A fourth plate connected to the first plate, the edge of the fourth plate abutting against the third side wall of the recycling tank container via the sealing element; The edges of the first plate, the second plate, and the fourth plate form the edges of the first cavity.

3. The liquid recovery system according to claim 2, characterized in that, The filter element includes a drain hole and a fluid conduit, the drain hole being configured to trap solids within the first cavity; the fluid conduit communicating with the drain hole and being configured to deliver at least one of an airflow and a liquid from the first cavity to other parts of the recovery chamber.

4. The liquid recovery system according to claim 3, characterized in that, The fluid conduit has a discharge port, which is located on the second plate.

5. The liquid recovery system according to claim 4, characterized in that, The second plate is provided with a guide cover, which covers the outlet and changes the direction of the fluid discharged from the outlet.

6. The liquid recovery system according to claim 5, characterized in that, The guide cover has a fluid guide port, which faces a direction away from the vacuum path of the suction source.

7. The liquid recovery system according to claim 2, characterized in that, The filter also includes a third plate extending from the second plate, the third plate dividing the other parts of the recovery chamber into a second cavity and a third cavity.

8. The liquid recovery system according to claim 7, characterized in that, The third plate is equipped with a one-way valve to enable unidirectional flow of fluid from the second cavity to the third cavity.

9. The liquid recovery system according to claim 1, characterized in that, The filter also includes a solid-liquid separator, which is removably disposed within the first cavity and near the outlet of the hollow riser.

10. A surface cleaning device, characterized in that, include: Upright main body; A cleaning head is mounted on an upright body and can move on the surface to be cleaned. During the operation of the surface cleaning equipment, the upright body can operate in a manner that is substantially parallel to the surface to be cleaned. A liquid supply tank assembly is disposed on the upright body or the cleaning head and is used to supply cleaning liquid to the cleaning head; A fluid distributor is mounted on a cleaning head, wherein the fluid distributor is in fluid communication with a supply tank assembly to supply cleaning liquid from the supply tank assembly to the cleaning head; as well as The liquid recovery system according to any one of claims 1-9, wherein the liquid recovery system is at least used for recovering and storing cleaning liquid after cleaning a surface to be cleaned.

Images