Liquid recovery system and surface cleaning equipment

Abstract

The utility model provides a liquid recovery system and surface cleaning equipment. The liquid recovery system comprises a suction source, a suction nozzle, a recovery tank container and a filter, the filter is detachably mounted in the recovery tank container; the filter comprises a top wall, a bottom wall and a side wall connected with the top wall and the bottom wall, the side walls comprise a first side wall and a second side wall which are provided with drainage holes; the filter comprises a first filter cavity and a second filter cavity, the first filter cavity and the second filter cavity are both located on the gas channel in the recovery chamber, and the second filter cavity is located at the downstream of the first filter cavity; the first filtering cavity is formed by a top wall, a bottom wall, a first side wall and the inner wall of the recycling tank container; the second filtering cavity is formed by the top wall, the bottom wall, the first side wall, the second side wall and the inner wall of the recycling tank container, and the first filtering cavity and the second filtering cavity are in fluid communication through a drainage hole in the first side wall.

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.

[0003] Floor scrubbers automatically spray water and scrub the floor, then suck the wastewater and residual dirt into the machine's wastewater tank. They are easy to use and provide a thorough cleaning. Floor scrubbers can self-clean at their base station; all the user needs to do is empty and clean the wastewater tank. Therefore, the ease of cleaning the wastewater tank itself is a key factor affecting the user experience.

[0004] Existing floor scrubbers use separation baskets for solid-liquid separation, but these baskets often have enclosed or semi-enclosed areas for storing solid waste, making it difficult to clean the solid waste inside. 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; and

[0010] A filter is detachably installed inside a recovery tank container; wherein the filter includes: a top wall, a bottom wall, and a side wall connecting the top wall and the bottom wall; the side wall includes a first side wall and a second side wall having drainage holes; the filter includes a first filter chamber and a second filter chamber, both of which are located on a gas passage inside the recovery tank, and the second filter chamber is located downstream of the first filter chamber;

[0011] The first filter chamber is formed by the top wall, bottom wall, first side wall and inner wall of the recovery tank container; the second filter chamber is formed by the top wall, bottom wall, first side wall, second side wall and inner wall of the recovery tank container, and the first filter chamber and the second filter chamber are fluidly connected through a drain hole on the first side wall.

[0012] According to at least one embodiment of the liquid recovery system of this disclosure, the outlet of the hollow riser is located within the first filter chamber.

[0013] According to at least one embodiment of the liquid recovery system of this disclosure, the outlet of the hollow riser faces the rear wall of the first filter chamber of the filter.

[0014] According to at least one embodiment of the liquid recovery system of the present disclosure, the first sidewall and the second sidewall have a common edge, and the first sidewall and the second sidewall form an angle of 30-90°.

[0015] According to at least one embodiment of the liquid recovery system of this disclosure, the sidewall further includes a closed third sidewall, the third sidewall, the second sidewall, and the bottom wall forming a first airflow conduit.

[0016] According to at least one embodiment of the liquid recovery system of this disclosure, the top wall has a first opening, the first opening being in fluid communication with the first airflow conduit.

[0017] According to at least one embodiment of the liquid recovery system of this disclosure, the top wall has a second opening, the second opening and the second filter chamber being in fluid communication.

[0018] According to at least one embodiment of the liquid recovery system of this disclosure, the first opening is adjacent to the second opening and spaced apart by the second sidewall.

[0019] According to at least one embodiment of the liquid recovery system of this disclosure, a guide cover is provided on the top wall, the guide cover covering the first opening and the second opening; the guide cover has a fluid guide port, the orientation of which is substantially opposite to the orientation of the outlet of the hollow riser.

[0020] According to another aspect of this disclosure, a surface cleaning apparatus is provided, comprising:

[0021] Upright main body;

[0022] 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.

[0023] 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;

[0024] 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

[0025] 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

[0026] 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.

[0027] Figure 1 This is a schematic diagram of the structure of a surface cleaning device according to one embodiment of the present disclosure.

[0028] Figure 2 This is a schematic diagram of the structure of a cleaning head according to one embodiment of the present disclosure.

[0029] 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.

[0030] Figure 4 This is a structural schematic diagram of a recycling tank container according to one embodiment of the present disclosure.

[0031] Figure 5 This is a schematic diagram of the structure of a filter according to one embodiment of the present disclosure.

[0032] Figure 6 This is a structural schematic diagram of a filter according to one embodiment of the present disclosure from another angle.

[0033] Figure 7 This is a schematic diagram of a portion of the structure of a filter according to one embodiment of the present disclosure.

[0034] The specific labels in the attached figures are as follows:

[0035] 100 handle part

[0036] 200 Main body

[0037] 300 Liquid Supply Tank Assembly

[0038] 400 Recycling Tank Container

[0039] 410 enclosure

[0040] 420 Hollow riser

[0041] 500 Connecting part

[0042] 600 Cleaning Head

[0043] 610 roller brush

[0044] 620 suction nozzle

[0045] 800 filter

[0046] 810 Top Wall

[0047] 811 First Opening

[0048] 812 Second Opening

[0049] 820 bottom wall

[0050] 830 First sidewall

[0051] 840 Second sidewall

[0052] 850 First Filter Chamber

[0053] 860 Second Filter Chamber

[0054] 870 Third sidewall

[0055] 880 Guide Cover

[0056] 881 Fluid Guide Port

[0057] 890 Back wall. Detailed Implementation

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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 pipeline through the suction nozzle 620 and further flow to the recycling tank container 400.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] The hollow riser 420 disclosed herein has an inlet and an outlet, so as to Figure 4As 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.

[0085] Figure 5 This is a schematic diagram of the structure of a filter according to one embodiment of the present disclosure. Figure 6 This is a structural schematic diagram of a filter according to one embodiment of the present disclosure from another angle. Figure 7 This is a schematic diagram of a portion of the structure of a filter according to one embodiment of the present disclosure.

[0086] like Figures 3 to 7 As shown, the filter 800 of this disclosure is detachably installed inside the recovery tank container 400; wherein, the filter 800 includes: a top wall 810, a bottom wall 820 and a side wall connecting the top wall 810 and the bottom wall 820; the side wall includes a first side wall 830 having a drain hole and a second side wall 840 having a drain hole; the filter 800 includes a first filter chamber 850 and a second filter chamber 860, both the first filter chamber 850 and the second filter chamber 860 are located on the gas passage in the recovery chamber, and the second filter chamber 860 is located downstream of the first filter chamber 850.

[0087] In other words, when the mixture of gas, liquid and solid waste flows out of the hollow riser 420, it will first flow to the first filter chamber 850, which can filter the solid waste in the mixture, and at least a portion of the filtered mixture will flow to the second filter chamber 860, which can filter the solid waste in the mixture.

[0088] Accordingly, the outlet of the hollow riser 420 of this disclosure is located within the first filter chamber 850, thereby allowing the mixture discharged from the hollow riser 420 to flow directly into the first filter chamber 850. In a preferred embodiment, the outlet of the hollow riser 420 faces the inner wall of the recovery tank container 400 (i.e., the rear wall of the first filter chamber of the filter), thereby allowing the mixture discharged from the hollow riser 420 to be sprayed toward the rear wall of the first filter chamber of the filter, thus facilitating liquid deposition and solid filtration.

[0089] In this disclosure, the first filter chamber 850 is formed by a top wall 810, a bottom wall 820, a rear wall 890, a first side wall 830, and the inner wall of the recovery tank container 400; in this disclosure, there are two first side walls 830, and both of these first side walls 830 are used to define the first filter chamber 850; that is, the first filter chamber 850 of this disclosure is formed in the space between the two first side walls 830.

[0090] The second filter chamber 860 is formed by the top wall 810, the bottom wall 820, the first side wall 830, the second side wall 840 and the inner wall of the recovery tank container 400. The first filter chamber 850 and the first filter chamber 850 are fluidly connected through the drain hole on the first side wall 830.

[0091] Specifically, the second filter chamber 860 of this disclosure is formed in two parts, and the two second filter chambers 860 are located on both sides of the first filter chamber 850.

[0092] See again Figure 5 The first sidewall 830 and the second sidewall 840 of this disclosure have a common edge, and the first sidewall 830 and the second sidewall 840 form an angle of 30-90°, thereby the second filter chamber 860 can have a preset size and can contain some solid waste.

[0093] like Figure 7 As shown, the sidewall of this disclosure also includes a closed third sidewall 870, and the third sidewall 870, the second sidewall 840, and the bottom wall 820 form a first airflow channel. At this time, the airflow will flow upward along the first airflow channel and then flow out from the first opening 811 described below.

[0094] Specifically, the top wall 810 of this disclosure has a first opening 811, which is in fluid communication with a first airflow conduit. Furthermore, the top wall 810 has a second opening 812, which is in fluid communication with a second filter chamber 860. That is, gas in the second filter chamber 860 can flow to the first airflow conduit, and from there to the first opening 811, and then be discharged; alternatively, it can be discharged directly through the second opening 812.

[0095] In a preferred embodiment, the first opening 811 is adjacent to the second opening 812 and is spaced apart by the second sidewall 840.

[0096] In some embodiments, a guide cover 880 is provided on the top wall 810, the guide cover 880 covering the first opening 811 and the second opening 812; the guide cover 880 has a fluid guide port 881, the orientation of the fluid guide port 881 being substantially opposite to the orientation of the outlet of the hollow riser 420.

[0097] In other words, the fluid guide port 881 of the guide cover 880 of this disclosure can communicate with the first opening 811 and the second opening 812, so that the gas flowing through the first opening 811 and the second opening 812 will be discharged through the fluid guide port 881 of the guide cover 880.

[0098] In the liquid recycling system disclosed herein, the arrangement of the first sidewall 830 and the second sidewall 840 confines the vast majority of solid waste within the first filter chamber 850. After emptying the waste, the user only needs to rinse the filter under a tap to clean it. Furthermore, the lateral permeability of the first filter chamber 850 facilitates the user's cleaning process. Consequently, the liquid recycling system of this disclosure improves the user experience without increasing costs.

[0099] 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.

[0100] 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.

[0101] 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 by, The liquid recovery system comprises: a suction source; a suction nozzle disposed on a cleaning head in fluid communication with the suction source; a recovery tank container comprising a hollow riser forming an inlet flow passage to a recovery chamber defined within the recovery tank container; and a filter removably mounted within the recovery tank container; wherein the filter comprises a top wall, a bottom wall and a side wall connecting the top wall and the bottom wall; the side wall comprises a first side wall and a second side wall having a drain hole; the filter comprises a first filter cavity and a second filter cavity, both of which are located on a gas passage within the recovery chamber, and the second filter cavity is located downstream of the first filter cavity; wherein the first filter cavity is formed by the top wall, the bottom wall, the first side wall and an inner wall of the recovery tank container; the second filter cavity is formed by the top wall, the bottom wall, the first side wall, the second side wall and an inner wall of the recovery tank container, and the first filter cavity and the first filter cavity are in fluid communication through the drain hole on the first side wall. An outlet of the hollow riser is located within the first filter cavity.

2. The liquid recovery system of claim 1, wherein, The outlet of the hollow riser faces a rear wall of the first filter cavity of the filter.

3. The liquid recovery system of claim 2, wherein, The first side wall and the second side wall have a common edge, and the first side wall and the second side wall form an included angle of 30-90°.

4. The liquid recovery system of claim 1, wherein, The side wall further comprises a closed third side wall, the third side wall, the second side wall and the bottom wall form a first gas flow passage.

5. The liquid recovery system of claim 1, wherein, The top wall has a first opening, the first opening is in fluid communication with the first gas flow passage.

6. The liquid recovery system of claim 5, wherein, The top wall has a second opening, the second opening is in fluid communication with the second filter cavity.

7. The liquid recovery system of claim 6, wherein, The first opening is adjacent to the second opening and is spaced by the second side wall.

8. The liquid recovery system of claim 7, wherein, The top wall is provided with a guide cover covering the first opening and the second opening; the guide cover has a fluid guide opening, and the direction of the fluid guide opening is substantially opposite to the direction of the outlet of the hollow riser.

9. The liquid recovery system of claim 7, wherein, The surface cleaning apparatus comprises:

10. A surface cleaning apparatus characterized by, a standing main body; a cleaning head mounted on the standing main body, the cleaning head being movable on a surface to be cleaned, and the standing main body being capable of working in a manner substantially parallel to the surface to be cleaned during operation of the surface cleaning apparatus; a liquid supply tank assembly arranged on the standing main body or the cleaning head, for providing cleaning liquid to the cleaning head; a fluid distributor mounted on the cleaning head, wherein the fluid distributor is in fluid communication with the liquid supply tank assembly to provide the cleaning liquid in the liquid supply tank assembly to the cleaning head; and the liquid recovery system of any one of claims 1-9, the liquid recovery system being used at least for recovering and storing the cleaning liquid after cleaning the surface to be cleaned. ​ ​

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