Liquid separation device and cleaning equipment

Abstract

The utility model discloses a liquid separation device and cleaning equipment, and belongs to the technical field of cleaning equipment, the liquid separation device is used for being arranged in the cleaning equipment, and the liquid separation device is provided with a liquid inlet, a liquid outlet and a liquid outlet; the flow dividing cavity is arranged in the liquid dividing device and is communicated with the liquid inlet; the plurality of liquid outlets are formed in the liquid separation device, and the liquid outlets are communicated with the flow division cavity and are communicated with the liquid inlet through the flow division cavity; and the liquid outlet groove is communicated with the plurality of liquid outlets and is communicated with the flow dividing cavity through the plurality of liquid outlets, and the liquid outlet groove is used for collecting liquid discharged from the liquid outlets and supplying the liquid to a cleaning roller of the cleaning equipment. According to the liquid distribution device, liquid on the cleaning roller can be distributed more uniformly, the cleaning effect on the surface to be cleaned and the cleaning roller is improved, and the uniformity of water stain distribution on the surface to be cleaned is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of cleaning equipment, and specifically relates to a liquid separation device and cleaning equipment. Background Art

[0002] Cleaning equipment is widely used in cleaning work in household, commercial, industrial and public places. In the cleaning equipment currently on the market, the water distributor lacks water uniformity performance, resulting in uneven water distribution on the cleaning roller, affecting the cleaning effect and the self-cleaning effect of the cleaning roller. Utility Model Content

[0003] Purpose of the utility model: An embodiment of the present application provides a liquid separation device, aiming to overcome the technical problem of the lack of water uniformity performance of the water separator of the current cleaning equipment; another purpose of the embodiment of the present application is to provide a cleaning equipment with the above-mentioned liquid spray device; the third purpose of the embodiment of the present application is to provide a self-cleaning method for the above-mentioned cleaning equipment.

[0004] Technical solution: In a first aspect, an embodiment of the present application provides a liquid separation device, which is used to be arranged in a cleaning device, and the liquid separation device is provided with:

[0005] Liquid inlet;

[0006] A flow separation chamber, disposed in the liquid separation device and connected to the liquid inlet;

[0007] A plurality of liquid discharge ports are arranged in the liquid separation device, the liquid discharge ports are communicated with the flow separation cavity, and are communicated with the liquid inlet through the flow separation cavity;

[0008] A liquid outlet trough is connected to the plurality of liquid discharge ports and is connected to the diversion chamber through the plurality of liquid discharge ports. The liquid outlet trough is used to collect liquid discharged from the liquid discharge ports and supply the liquid to the cleaning roller of the cleaning device.

[0009] In some embodiments, the liquid outlet groove has a notch, and the notch is arranged on the first surface of the liquid separation device facing the cleaning roller;

[0010] In the height direction of the liquid separation device, the size of the notch is H1, and the size of the liquid separation device is H2, which satisfies: 0.017≤H1 / H2≤0.095.

[0011] The size of the liquid separation device and the size of the notch are interrelated. When the size of one of the notch and the liquid separation device is determined, the size range of the other can also be determined. In addition, in combination with the actual size of the cleaning equipment, setting H1 / H2 within the above range can make the size of the notch narrow enough to form a slit structure, which can make full use of the tension and capillary effect of the liquid. After the liquid enters the multiple discharge ports through the diversion cavity, it can enter the liquid outlet tank through the multiple discharge ports, and fill the notch of the liquid outlet tank more evenly under the dual effects of tension and capillary effect, so that each position of the notch is evenly filled with liquid. Under the disturbance of the cleaning roller, the tension of the liquid at the notch is destroyed, and the liquid is evenly spread on the cleaning roller, and under the action of the capillary effect, the liquid continues to fill the notch and spread on the cleaning roller, further enhancing the uniformity and continuity of the liquid supply, enhancing the uniformity of the liquid distribution on the cleaning roller, and improving the cleaning effect of the surface to be cleaned and the cleaning roller and the uniformity of the water stain distribution on the surface to be cleaned.

[0012] Moreover, through the above-mentioned size limitation, it is possible to meet the internal space requirements of the liquid separation device, so that it has sufficient space to arrange the liquid inlet, the diversion cavity, the drain port and the liquid outlet trough, while its external dimensions are relatively small, which is conducive to the miniaturization and lightweight of the liquid separation device.

[0013] In some embodiments, a dimension H1 of the notch of the liquid outlet groove in the height direction of the liquid separation device satisfies: 0.4 mm≤H1≤2 mm.

[0014] Limiting the size H1 of the slot within the above range makes the size of the slot narrow enough to form a slit structure, which can make full use of the tension and capillary effect of the liquid. After the liquid enters the multiple discharge ports through the diversion cavity, it can enter the liquid outlet tank through the multiple discharge ports, and fill the slot of the liquid outlet tank more evenly under the dual effects of tension and capillary effect, so that each position of the slot is evenly filled with liquid. Under the disturbance of the cleaning roller, the tension of the liquid at the slot is destroyed, and the liquid is evenly spread on the cleaning roller, and under the action of the capillary effect, the liquid continues to fill the slot and spread on the cleaning roller, further enhancing the uniformity and continuity of the liquid supply, enhancing and improving the uniformity of the liquid distribution on the cleaning roller, and improving the cleaning effect on the surface to be cleaned and the cleaning roller, as well as the uniformity of the water stain distribution on the surface to be cleaned.

[0015] At the same time, by setting up a liquid outlet groove and limiting the size of the groove as mentioned above, the current prior art method of cleaning the cleaning roller by directly using a water spray port is changed. Instead, the water is first collected through the liquid outlet groove and then applied to the cleaning roller, thereby achieving a water curtain-like water spray.

[0016] At the same time, the above-mentioned size limitation can ensure to the greatest extent that the water sprayed by the liquid separation device can form a water curtain effect, thereby achieving more uniform cleaning or self-cleaning of the cleaning roller.

[0017] In some embodiments, a dimension H2 of the liquid separation device in the height direction satisfies: 21 mm ≤ H2 ≤ 23.5 mm.

[0018] The height dimension H2 of the liquid separation device can be applied to most cleaning equipment without occupying too much of the internal space of the cleaning equipment. It can also meet the internal space requirements of the liquid separation device, so that it has enough space to arrange the liquid inlet, the diversion cavity, the liquid discharge port and the liquid outlet trough, and its external dimensions are relatively small, which is conducive to miniaturization and light weight.

[0019] In some embodiments, the liquid discharge port is located at a side of the liquid outlet groove away from the cleaning roller, and a distance D1 between the liquid discharge port and the groove satisfies: 3mm≤D1≤6mm.

[0020] Setting the drain port on the side of the liquid outlet groove away from the cleaning roller can make the liquid discharged from the drain port flow smoothly to the groove mouth, reduce turbulence and disturbance caused by large-scale turning or obstacle obstruction, and thus reduce the influence on liquid tension and capillary effect, keep the liquid evenly distributed at the groove mouth, and flow out in the form of a water curtain.

[0021] At the same time, the above-mentioned size limitation can ensure that there is enough space for the liquid discharged from the discharge port to be gathered together, and can also prevent the discharge port from being too far back, so that the discharged liquid cannot be sprayed out in time.

[0022] In some embodiments, the plurality of liquid discharge ports are arranged at intervals along the length direction of the liquid separation device;

[0023] The liquid separation device comprises a plurality of guide surfaces. Along the length direction of the liquid separation device, the guide surfaces are arranged on both sides of each of the liquid discharge ports. The guide surfaces are used to guide the liquid discharged from the liquid discharge ports into the liquid outlet groove.

[0024] By providing the guide surface, the liquid discharged from each discharge port can be guided more smoothly to each corner of the liquid outlet groove, so that the liquid fills the liquid outlet groove, thereby being more easily evenly distributed at the notch of the liquid outlet groove, thereby improving the uniformity of the liquid discharge effect.

[0025] In some embodiments, the liquid separation device comprises a plurality of guide portions arranged at intervals along the length direction of the liquid separation device, and a liquid discharge port is provided between two adjacent guide portions;

[0026] The liquid outlet trough has a plurality of first trough sections and a second trough section connecting the plurality of the first trough sections, the first trough section is arranged between two adjacent guide parts, the guide surface is the surface of the guide part facing the first trough section, and the second trough section is arranged on one side of the guide part close to the trough opening.

[0027] By connecting multiple first slot sections through the second slot section, the liquid discharged from any liquid discharge port can flow to the corresponding liquid discharge position of another liquid discharge port through the first slot section and the second slot section, so that the liquid can be evenly distributed between different liquid discharge ports. In addition, combined with the drainage function of the guide part and the guide surface, the liquid can quickly fill the second slot section and then fill the slot, thereby improving the uniformity of the liquid discharge and being more conducive to generating a waterfall-like water flow.

[0028] In some embodiments, a distance D2 between the guide portion and the notch satisfies: 0.5 mm ≤ D2 ≤ 1.5 mm.

[0029] The above-mentioned size restriction enables the second groove section to form a relatively narrow capillary structure near the groove opening of the guide part. When the liquid in the first groove section enters the second groove section, it can flow along the length direction of the liquid separation device at this position due to the liquid tension and capillary effect, so that the space on both sides of the guide part can be filled with liquid, thereby enhancing the mutual complementary effect of liquid discharged from different discharge ports, thereby ensuring that the entire liquid outlet groove can be filled with liquid and achieving a better liquid discharge effect.

[0030] In some embodiments, the drain port is located on a side of the liquid outlet groove away from the cleaning roller, the distance between the drain port and the slot is D1, the distance between the guide portion and the slot is D2, and 4≤D1 / D2≤6 is satisfied.

[0031] By controlling the proportion of the second slot section to the overall size of the liquid outlet slot, it is beneficial to reduce the filling time of the liquid outlet slot and improve the continuity of liquid outlet.

[0032] In some embodiments, the size of the first trough section in the length direction of the liquid separation device increases from the liquid discharge port to the second trough section.

[0033] Thereby, a trumpet-shaped liquid flow area can be formed, which is conducive to the liquid quickly filling the entire liquid outlet groove, and then better forming a waterfall-like water flow, which spreads outward from the groove.

[0034] In some embodiments, at least a portion of the guide surface is a plane; or, at least a portion of the guide surface is a curved surface.

[0035] At least a portion of the guide surface is configured as a planar structure, so that the structure of the guide surface is relatively simple and easy to process, which can reduce production costs and improve processing efficiency.

[0036] At least a portion of the guide surface is set to an arc-shaped structure. The arc-shaped guide surface can reduce the flow resistance of the liquid, make the liquid flow more smoothly during the guide process, and reduce energy loss.

[0037] In some embodiments, the two guide surfaces located between two adjacent drainage ports are connected to each other.

[0038] The liquid discharged from the discharge port can flow along the two guide surfaces to the area corresponding to the other discharge port, which is conducive to the liquid discharged from different discharge ports to complement each other, making the liquid amount uniform, and thus improving the effect of the liquid separation device in supplying liquid to the outside.

[0039] In some embodiments, the area S of the drain port satisfies: 0.5 mm 2 ≤S≤1.5mm 2 .

[0040] The above-mentioned restriction on the size of the liquid discharge port is conducive to controlling the flow rate of the liquid entering the liquid outlet tank, thereby producing a better waterfall-like water flow effect.

[0041] In some embodiments, a dimension L1 of the notch in the length direction of the liquid separation device satisfies: 250 mm ≤ L1 ≤ 270 mm.

[0042] The above-mentioned restriction on the slot size can match the length size of the cleaning roller in the cleaning equipment, so that the waterfall-like water flow formed by the slot of the liquid outlet trough can be spread on the cleaning roller as much as possible, making the liquid distribution of the cleaning roller in its length direction more uniform.

[0043] In some embodiments, the liquid separation device comprises:

[0044] a first shell, wherein the liquid inlet is arranged in the first shell;

[0045] A main body connected to one side of the first shell;

[0046] The second shell is connected to a side of the main body away from the first shell. The second shell, the main body and the first shell together form the diversion cavity. The liquid outlet trough and the plurality of liquid discharge ports are arranged in the second shell, and the plurality of liquid discharge ports are located on a side of the second shell facing the main body.

[0047] By configuring the liquid separation device to be the split structure, different structural components can be processed separately and assembled into the liquid separation device, thereby reducing the difficulty of processing.

[0048] In some embodiments, the diversion cavity has:

[0049] A first cavity is disposed between the first shell and the main body;

[0050] A plurality of diverter holes are provided in the main body, the diverter holes are connected to the first cavity and connected to the liquid inlet through the first cavity;

[0051] A second cavity is provided between the main body and the second shell, and each of the diversion holes is connected to at least two of the drainage ports through the second cavity;

[0052] The second cavity extends in an arc shape from the diversion hole to the liquid discharge port.

[0053] By setting the second cavity to extend in an arc shape, the liquid can be diverted more smoothly, reducing the pressure and water flow caused by the liquid impacting the cavity wall of the second cavity, which is beneficial for the liquid to be evenly distributed in the liquid outlet trough and form a waterfall-like water flow, thereby improving the water supply effect.

[0054] In a second aspect, an embodiment of the present application provides a cleaning device, comprising:

[0055] cleaning rollers; and

[0056] The liquid separating device as described in any of the above embodiments is used to supply liquid to the cleaning roller.

[0057] In some embodiments, the length direction of the liquid separation device is consistent with the length direction of the cleaning roller. In the length direction, the size of the notch of the liquid separation device is L1, and the size of the cleaning roller is L2, satisfying: 0.8≤L1 / L2≤1.2.

[0058] Setting the ratio of dimensions L1 and L2 within this range can match the length of the slot with the length of the cleaning roller, so that the waterfall-like water flow formed by the slot of the liquid outlet trough can be spread on the cleaning roller as much as possible, making the liquid distribution of the cleaning roller in its length direction more uniform, thereby improving the surface cleaning and self-cleaning effects of the cleaning equipment.

[0059] In some embodiments, the notch of the liquid dispensing device is in contact with the cleaning roller.

[0060] Therefore, when the cleaning roller rotates, its bristles can directly disturb the liquid filled in the groove, destroy the surface tension of the liquid, and make the liquid in the liquid separation device overflow in the form of a waterfall, spread evenly on the cleaning roller, fully soaking the bristles of the cleaning roller, thereby improving the self-cleaning effect of the cleaning roller and the cleaning effect on the surface to be cleaned.

[0061] In some embodiments, the cleaning roller is configured to have a first rotation state, in which the cleaning roller is spaced apart from the notch of the liquid separation device.

[0062] The "first rotation state" can be the instantaneous state when the cleaning roller starts to rotate, that is, the moment when the rotation starts, the cleaning roller is spaced from the notch, the cleaning roller rotates first, and the dirt attached to its bristles is relatively dry and easy to be cleaned by the comb teeth. As the cleaning roller rotates, the airflow formed by it can destroy the surface tension of the liquid at the notch, thereby forming a water waterfall.

[0063] In some embodiments, a distance M between the notch of the liquid separation device and the central axis of the cleaning roller satisfies: 35 mm ≤ M ≤ 50 mm.

[0064] The above-mentioned size limitation enables the cleaning roller to produce a better turbulence effect when rotating, quickly destroying the surface tension of the liquid at the slot, generating a waterfall-like water supply, so that the liquid in the slot can be spread very evenly onto the cleaning roller, thereby improving the cleaning effect.

[0065] Beneficial effect: According to the first aspect of the present application, the liquid separation device of the embodiment of the present application is provided with a liquid outlet groove connected to a plurality of liquid discharge ports, the liquid outlet groove is connected to the diversion chamber through the plurality of liquid discharge ports, and the notch of the liquid outlet groove is provided on the first surface of the liquid separation device facing the cleaning roller. When the liquid is supplied through the liquid separation device, the liquid in the diversion chamber can be diverted to the plurality of liquid discharge ports, and discharged into the liquid outlet groove through the plurality of liquid discharge ports, and the liquid is collected in the liquid outlet groove and then flows out through the notch of the liquid outlet groove and supplied to the cleaning roller of the cleaning device. Thus, the liquid supplied by the liquid separation device will be collected in the liquid outlet groove and fill the liquid outlet groove, so that the liquid is evenly distributed at each position in the liquid outlet groove, and then the liquid overflows from the notch to form a uniformly spread waterfall-like water flow, which effectively improves the uniformity of the water flow at each position of the notch, and then can make the liquid on the cleaning roller more evenly distributed, improve the cleaning effect of the surface to be cleaned and the cleaning roller, and improve the uniformity of the water stain distribution on the surface to be cleaned.

[0066] Furthermore, by providing a liquid outlet trough to connect multiple liquid discharge ports, the liquid outlet trough can be used to evenly distribute the liquid among the multiple liquid discharge ports. Due to the existence of the liquid outlet trough, even if some liquid discharge ports are blocked or the water flow is uneven, the liquid discharged from other liquid discharge ports will be diverted through the liquid outlet trough to make the liquid distribution uniform, and the uniformity of the liquid distribution will not be affected. The uniformity and continuity of the liquid supply are fully maintained, and the uniformity of the liquid distribution on the cleaning roller is maintained, thereby maintaining the cleaning effect on the surface to be cleaned and the cleaning roller, and maintaining the uniformity of the water stain distribution on the surface to be cleaned.

[0067] According to the second aspect of the present application, the cleaning device of the embodiment of the present application may have all the technical features and technical effects of the liquid separation device of any of the above embodiments, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0069] Figure 1 A schematic diagram of the structure of a liquid separation device provided in some embodiments of the present application;

[0070] Figure 2 A front structural schematic diagram of a liquid separation device provided in some embodiments of the present application;

[0071] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of the liquid separation device along line AA;

[0072] Figure 4 for Figure 2 Schematic diagram of the dimensional parameters of the cross-sectional structure of the middle liquid separation device along the AA line;

[0073] Figure 5 for Figure 2 A schematic diagram of the three-dimensional structure of the liquid separation device cut along line BB;

[0074] Figure 6 for Figure 5 Schematic diagram of the local enlarged structure of the middle C area;

[0075] Figure 7 for Figure 5 A schematic diagram of the structure of the partially enlarged top view of the middle C area;

[0076] Figure 8 In some other embodiments of the present application, the liquid separation device is Figure 7 Schematic diagram of the structure observed from the same perspective;

[0077] Fig. 9 In some other embodiments of the present application, the liquid separation device is Figure 7 Schematic diagram of the structure observed from the same perspective;

[0078] Fig.10 A schematic diagram of the exploded structure of parts of a liquid separation device provided in some embodiments of the present application;

[0079] Fig.11 for Fig.10 A schematic diagram of the local enlarged structure of the middle A area;

[0080] Fig.12 A schematic diagram of another perspective of the exploded structure of parts of the liquid separation device provided in some embodiments of the present application;

[0081] Fig.13 for Fig.12 A schematic diagram of the local enlarged structure of the middle B area;

[0082] Fig.14 A schematic diagram of a partial structure of a cleaning device provided in some embodiments of the present application;

[0083] Fig.15 A schematic diagram of the front structure of a cleaning device provided in some embodiments of the present application;

[0084] Fig.16 for Fig.15 Schematic diagram of the cross-sectional partial structure of the cleaning equipment along the CC line.

[0085] Description of reference numerals:

[0086] 10-cleaning device; 100-liquid separation device; 110-liquid inlet; 120-diverter cavity; 121-first cavity; 122-diverter hole; 123-second cavity; 130-liquid discharge port; 140-liquid outlet; 141-slot; 142-first slot section; 143-second slot section; 150-first shell; 160-main body; 170-second shell; 180-first surface; 190-guiding surface; 195-guiding part; 200-cleaning roller; OO'-central axis. DETAILED DESCRIPTION

[0087] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0088] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, "multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined.

[0089] In the accompanying drawings provided by the embodiments of the present application, the arrows marked with X indicate the length direction of the liquid separator and the cleaning roller, the arrows marked with Z indicate the height direction of the liquid separator and the cleaning equipment, and the arrows marked with Y indicate the approximate arrangement direction of the cleaning roller and the liquid separator in the cleaning equipment, and the Y direction can be the direction in which the cleaning equipment advances or retreats on the surface to be cleaned. In the description of the present application, the length direction X, the height direction Z and the Y direction are introduced to more clearly and concisely describe the shape and relative position relationship of each component in the cleaning equipment and the liquid separator, so as to clearly illustrate the structure of the cleaning equipment and the liquid separator. Among them, the length direction X, the height direction Z and the Y direction are three directions intersecting each other. In the actual use process of the liquid separator and the cleaning equipment, according to the different factors such as the use state and the placement position, the length direction X, the height direction Z and the Y direction can point to any orientation in the use space, rather than necessarily to a fixed orientation. Optionally, the length direction X, the height direction Z and the Y direction are perpendicular to each other.

[0090] In addition, it should be noted that in the description of this application, "liquid" may refer to a cleaning liquid based on water, an aqueous solution or other types of solvents, and the specific liquid type can be selected according to the actual use environment requirements of the liquid separation device and the cleaning equipment.

[0091] At present, the water distributors installed in cleaning equipment lack water uniformity, which will lead to uneven water distribution on the cleaning roller, especially uneven water distribution in the length direction of the cleaning roller, which will lead to strong randomness in the real-time cleaning effect. For example, if there is no water in a part of the cleaning roller, the stains at the corresponding position on the ground often cannot be cleaned in real time, resulting in marks. Another example is that there is a large amount of water in a part of the cleaning roller, resulting in uneven distribution of water stains on the ground. There is a situation where there is a large amount of water in a local position, and the drying time is long, which affects the user experience.

[0092] In view of this, an embodiment of the present application provides a liquid separation device 100, which aims to improve the uniformity of liquid distribution and overcome the above-mentioned technical problems.

[0093] The liquid separation device 100 can be applied to some equipment that requires uniform liquid supply to uniformly supply liquid to other components in the equipment. For example, the liquid separation device 100 can be applied to a cleaning device 10 and be arranged in the cleaning device 10 to supply liquid to a cleaning roller 200 of the cleaning device 10.

[0094] First, please also refer to Figures 1 to 13 The liquid separation device 100 provided in the embodiment of the present application is provided with a liquid inlet 110, a diversion cavity 120, a plurality of liquid discharge ports 130 and a liquid outlet trough 140.

[0095] The liquid can enter the liquid separation device 100 through the liquid inlet 110. Specifically, the liquid separation device 100 can be connected to an external liquid supply pipeline and a water pump through its liquid inlet 110, and the liquid is pumped into the liquid inlet 110 through the water pump and the water supply pipeline.

[0096] The diverter cavity 120 and the plurality of liquid discharge ports 130 are both disposed in the liquid separation device 100. The inlet end of the diverter cavity 120 is connected to the liquid inlet 110, and the outlet end is connected to the plurality of liquid discharge ports 130. That is, the plurality of liquid discharge ports 130 can be connected to the liquid inlet 110 through the diverter cavity 120. Thus, the liquid entering the liquid separation device 100 from the liquid inlet 110 can enter the diverter cavity 120, and be diverted into multiple streams through the diverter cavity 120, so that the liquid is dispersed and flows into the plurality of liquid discharge ports 130, so that the liquid is discharged from multiple different positions, and the distribution range of the liquid is expanded.

[0097] The liquid outlet groove 140 is connected with the plurality of liquid discharge ports 130, and is connected with the diversion chamber 120 through the plurality of liquid discharge ports 130, so that the liquid diverted by the diversion chamber 120 can flow to the liquid outlet groove 140 through the plurality of liquid discharge ports 130. Thus, when the liquid distributing device 100 supplies liquid, the liquid dispersedly flowing into the plurality of liquid discharge ports 130 through the diversion chamber 120 can enter the liquid outlet groove 140, and gather in the liquid outlet groove 140 to fill the liquid outlet groove 140, so that the liquid is evenly distributed at each position in the liquid outlet groove 140, and then the liquid can overflow from the slot 141 to form a uniformly spread waterfall-like water flow, thereby effectively improving the uniformity of the water flow at each position of the slot 141.

[0098] In some embodiments, the slot 141 of the liquid outlet trough 140 is disposed on the first surface 180 of the liquid separation device 100 facing the cleaning roller 200, so that the liquid overflowing from the slot 141 can be evenly supplied to the cleaning roller 200, so that the liquid on the cleaning roller 200 is more evenly distributed, which can improve the cleaning effect of the surface to be cleaned and the cleaning roller 200, and improve the uniformity of the water stain distribution on the surface to be cleaned.

[0099] Please also read Figure 3 and Figure 4In the liquid separation device 100, the dimension H1 of the notch 141 in the height direction Z of the liquid separation device 100 satisfies: 0.4mm≤H1≤2mm. That is, the dimension H1 of the notch 141 can be any value among 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, or a range between any two values. Specifically, the dimension H1 can be measured by a dimension measuring tool such as a vernier caliper, or by an optical or imaging measurement method. The size H1 of the slot 141 in the height direction Z of the liquid separation device 100 is set within the above range, so that the size of the slot 141 is narrow enough to form a slit structure, which can make full use of the tension and capillary effect of the liquid. Through the capillary effect, the liquid can flow freely in the narrow slot 141 space. When the liquid enters the liquid outlet 140 through the multiple discharge ports 130, under the dual effects of the liquid surface tension and the capillary effect, the slot 141 of the liquid outlet can be more evenly filled, so that each position of the slot 141 is evenly filled with liquid. In the cleaning device 10, as the cleaning roller 200 rotates, the liquid at the slot 141 is disturbed, so that the tension of the liquid is destroyed, and the liquid can be evenly spread from the slot 141 to the cleaning roller 200. Moreover, under the action of capillary effect, the liquid can continuously flow toward the groove 141 and fill the groove 141, and spread evenly on the cleaning roller 200, further enhancing the uniformity and continuity of the liquid supply, enhancing the uniformity of the liquid distribution on the cleaning roller 200, and improving the cleaning effect of the surface to be cleaned and the cleaning roller 200, as well as the uniformity of the water stain distribution on the surface to be cleaned.

[0100] Moreover, within the size range of 0.4 mm to 2 mm, when H1 is smaller, the notch 141 is narrower, the tension and capillary effect of the liquid are more obvious, and accordingly, the liquid is distributed more evenly; when H1 is larger, the notch 141 becomes relatively wider, the water resistance to the liquid is correspondingly reduced, and the liquid flows out more smoothly. In summary, within the size range of 0.4 mm to 2 mm, the liquid can flow smoothly in the liquid separation device 100 and maintain the capillary effect of the liquid, ensuring the uniformity of the liquid distribution while also ensuring the continuity of the liquid outflow.

[0101] In addition, when H1 is less than 0.4 mm, the slot 141 becomes narrower, which may cause the liquid to flow unsmoothly at the slot 141. This is because when the slot 141 is too narrow, the flow of liquid at the slot 141 will be restricted and cannot overflow smoothly, causing pressure to build up in the liquid separation device 100, affecting the outflow of liquid, and thus affecting the liquid supply to the cleaning roller 200. On the other hand, when H1 is greater than 2 mm, the slot 141 becomes too wide, which will affect the capillary effect of the liquid. Due to the wide size of the slot 141, the capillary effect will be reduced or even fail, affecting the uniformity of liquid distribution.

[0102] Please refer to Figure 3 and Figure 4 In some embodiments, the dimension H2 of the liquid dispensing device 100 in the height direction Z satisfies: 0.017≤H1 / H2≤0.095. That is, in this embodiment, H1 / H2 can be any value among 0.017, 0.021, 0.025, 0.029, 0.033, 0.037, 0.041, 0.045, 0.049, 0.053, 0.057, 0.061, 0.065, 0.069, 0.073, 0.077, 0.081, 0.085, 0.089, 0.093, or a range value between any two values. Specifically, the dimensions H1 and H2 can be measured by a dimension measuring tool such as a vernier caliper, or by an optical or imaging measurement method. By setting H1 / H2 within the above range, the size of the liquid separation device 100 and the size of the slot 141 are interrelated. When the size of the slot 141 has been determined, the size range of H2 of the liquid separation device 100 can also be determined. Such a setting can meet the internal space requirements of the liquid separation device 100, so that it has enough space to arrange the liquid inlet 110, the diversion cavity 120, the liquid discharge port 130 and the liquid outlet 140. At the same time, its external dimensions are relatively small, which is conducive to miniaturization and lightweight. Optionally, 21mm≤H2≤23.5mm. In addition, this setting enables the height dimension of the liquid separation device 100 to be suitable for most cleaning equipment 10, and will not cause excessive occupation of the internal space of the cleaning equipment 10.

[0103] Please also read Figures 3 to 9 In some embodiments, the liquid discharge port 130 is located on the side of the liquid outlet 140 away from the cleaning roller 200, so that the liquid discharged from the liquid discharge port 130 can keep flowing toward the side where the slot 141 is located without a large turn or obstacle. This arrangement can make the liquid flow smoothly to the slot 141, reduce turbulence and disturbance caused by large turns or obstacles, reduce the influence on liquid tension and capillary effect, and keep the liquid evenly distributed at the slot 141.

[0104] The spacing D1 between the discharge port 130 and the notch 141 satisfies: 3mm≤D1≤6mm. That is, in the present embodiment, D1 can be any value among 3mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, 4.0mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm, 5.0mm, 5.1mm, 5.2mm, 5.3mm, 5.4mm, 5.5mm, 5.6mm, 5.7mm, 5.8mm, 5.9mm, 6mm, or a range between any two values. Specifically, the dimension D1 can be measured by a dimension measuring tool such as a vernier caliper, or by an optical or imaging measurement method. The spacing D1 between the drain port 130 and the notch 141 is set to be above 3mm, and the liquid discharged from the drain port 130 will first enter the liquid outlet slot 140, and will flow at least the distance of the spacing D1 before reaching the notch 141. During the flow process, the liquid discharged from multiple drain ports 130 has sufficient space to converge and achieve uniform distribution. In addition, the spacing D1 is set to be below 6mm, so that the liquid outlet slot 140 does not occupy too much internal space of the liquid separation device 100, and sufficient layout space is reserved for the diversion chamber 120, so that the diversion effect can be better and the range of liquid distribution is wider. Furthermore, the spacing D1 is set to be below 6mm, which can reduce the filling time of the liquid outlet slot 140, that is, the liquid can quickly fill the liquid outlet slot 140, which is conducive to maintaining the continuity of the liquid supply to the outside. In addition, under this size range, there is also enough space to set the diversion structure from the drain port 130 to the notch 141, which further improves the uniformity of liquid distribution and improves the effect of liquid discharge.

[0105] Please also read Figure 5 , Figure 6 and Figure 7In some embodiments, a plurality of liquid discharge ports 130 are arranged at intervals along the length direction X of the liquid separation device 100, and the liquid outlet groove 140 connects the plurality of liquid discharge ports 130, and thus also extends along the length direction X. Accordingly, the notch 141 also extends along the length direction X of the liquid separation device 100, so that it can match the length of the cleaning roller 200, so that the supplied liquid is more evenly distributed in the length direction of the cleaning roller 200. The liquid separation device 100 includes a plurality of guide surfaces 190, and guide surfaces 190 are provided on both sides of each liquid discharge port 130 along the length direction X of the liquid separation device 100. The guide surfaces 190 are used to guide the liquid discharged from the liquid discharge port 130 into the liquid outlet groove 140. By providing the guide surfaces 190, the liquid discharged from each liquid discharge port 130 can be more smoothly guided to each corner of the liquid outlet groove 140, so that the liquid fills the liquid outlet groove 140, thereby being more easily evenly distributed at the notch 141 of the liquid outlet groove 140, thereby improving the uniformity of the liquid discharge. Specifically, one end of the guide surface 190 may be disposed at the liquid discharge port 130 , and the liquid flowing out of the liquid discharge port 130 may flow along the guide surface 190 in the liquid outlet groove 140 , and finally fill the entire liquid outlet groove 140 .

[0106] Specifically, in some embodiments, the liquid separation device 100 includes a plurality of guide portions 195 arranged at intervals along the length direction X of the liquid separation device 100, and a liquid discharge port 130 is provided between two adjacent guide portions 195, that is, guide portions 195 are provided on both sides of the liquid discharge port 130. It can be understood that the guide portion 195 is a guide structure provided in the liquid separation device 100, and the guide surface 190 is a side surface of the guide portion 195 for guiding the liquid and guiding the liquid from the liquid discharge port 130 to the liquid outlet 140.

[0107] The liquid outlet 140 has a plurality of first slot sections 142 and a second slot section 143 connecting the plurality of first slot sections 142. The first slot section 142 is arranged between two adjacent guide portions 195, so that each first slot section 142 corresponds to a position of a liquid discharge port 130 and is connected to each other. The guide surface 190 is the surface of the guide portion 195 facing the first slot section 142, so that the liquid discharged from the liquid discharge port 130 can flow into the first slot section 142 and flow along the guide surface 190 to fill the entire first slot section 142. The second slot section 143 connects the plurality of first slot sections 142, so that the liquids of the plurality of first slot sections 142 can converge in the second slot section 143, and the liquid in any first slot section 142 can also flow into other first slot sections 142 via the second slot section 143, so as to achieve the regulation and dispatch of the liquid between the plurality of first slot sections 142, so that the liquid can be evenly distributed in the entire liquid outlet 140. The second slot section 143 is arranged on one side of the guide portion 195 close to the notch 141, that is, the second slot section 143 is located between the plurality of first slot sections 142 and the notch 141, and the liquid can flow into the notch 141 through the first slot section 142 and the second slot section 143 in sequence. In this process, combined with the guiding function of the guide portion 195 and the guide surface 190, the liquid can fill the liquid outlet slot 140 and spread evenly at the notch 141 to form a waterfall-like water flow, and evenly supply outward. Specifically, the second slot section 143 and the notch 141 both extend along the length direction X of the liquid separation device 100.

[0108] Please combine Figure 4 and Figure 7 In some embodiments, the distance D2 between the guide portion 195 and the notch 141 satisfies: 0.5 mm ≤ D2 ≤ 1.5 mm. That is, in this embodiment, D2 can be any value among 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, or a range between any two values. Specifically, the dimension D2 can be measured by a dimension measuring tool such as a vernier caliper, or by an optical or imaging measurement method. By setting the spacing D2 within the above range, on the one hand, a second slot section 143 connecting multiple first slot sections 142 can be formed on the side of the guide part 195 close to the notch 141, and on the other hand, a relatively narrow capillary structure can be formed by the second slot section 143 at the guide part 195 close to the notch 141. When the liquid in the first slot section 142 enters the second slot section 143, it can flow along the first direction X at this position due to liquid tension and capillary effect, so that the space on both sides of the guide part 195 can be filled with liquid, thereby ensuring that the entire liquid outlet groove 140 can be filled with liquid, achieving a better liquid outlet effect.

[0109] See also Figure 7In some embodiments, the liquid discharge port 130 is located on the side of the liquid outlet 140 away from the cleaning roller 200, so that the liquid discharged from the liquid discharge port 130 can keep flowing toward the side where the slot 141 is located without a large turn or obstacle. This arrangement can make the liquid flow smoothly to the slot 141, reduce turbulence and disturbance caused by large turns or obstacles, reduce the influence on liquid tension and capillary effect, and keep the liquid evenly distributed at the slot 141.

[0110] The distance between the drain port 130 and the slot 141 is D1, and the distance between the guide portion 195 and the slot 141 is D2, which satisfies: 4≤D1 / D2≤6. That is, in this embodiment, D1 / D2 can be any value among 4, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 6, or a range between any two values. This range also limits the space occupied by the guide portion 195 in the liquid outlet groove 140 in the Y direction. On the one hand, a connecting section that can connect multiple discharge ports 130 is reserved in the liquid outlet groove 140, which is beneficial for the discharge volumes of different discharge ports 130 to complement each other and is beneficial for the formation of a waterfall. On the other hand, by controlling the overall size ratio of the second groove section 143 to the liquid outlet groove 140, it is beneficial to reduce the filling time of the liquid outlet groove 140 and improve the continuity of the liquid discharge.

[0111] Please refer again Figure 6 and Figure 7 , the size of the first slot section 142 in the length direction X of the liquid separation device 100 increases from the liquid discharge port 130 to the second slot section 143. That is to say, the first slot section 142 is a region that gradually expands from the liquid discharge port 130 to the second slot section 143. Accordingly, the guide surfaces 190 on both sides of the first slot section 142 form a trumpet-shaped structure that expands outward, so that the liquid discharged from the liquid discharge port 130 flows in a radial and gradually expanding trend, which is conducive to the liquid quickly filling the entire liquid outlet slot 140, and then better forming a waterfall-like water flow, which is spread outward from the slot 141.

[0112] Please combine Figure 7 , Figure 8 and Fig. 9 Optionally, at least part of the guide surface 190 may be a plane or an arc surface, wherein the arc surface refers to an arc-shaped curved surface, and the arc shape may be a circular arc shape or an elliptical arc shape. It should be noted that the above arc shape may not be a standard circular arc shape or an elliptical arc shape, as long as it roughly presents a corresponding shape.

[0113] Specifically, in Figure 7In the embodiment shown, at least part of the guide surface 190 is a plane, and the plane is arranged in the liquid separation device 100 at an angle relative to the Y direction. The structure is relatively simple and easy to manufacture, which can reduce the manufacturing cost and improve the production efficiency. The liquid flows along the plane, which can reduce the impact on the guide surface 190, reduce turbulence, and make the liquid fill the liquid tank 140 more stably.

[0114] exist Figure 8 and Fig. 9 In the embodiment shown, at least a portion of the guide surface 190 is a curved surface, which may be as follows: Figure 8 The surface protruding toward the liquid outlet groove 140 as shown in the figure may also be as shown in the figure Fig. 9 The concave surface is shown as being concave toward the side away from the liquid outlet groove 140. The arc-shaped flow guiding surface 190 can reduce the flow resistance of the liquid, so that the liquid can flow more smoothly during the flow guiding process, thereby reducing energy loss.

[0115] Please also read Figures 5 to 9 In some embodiments, the two guide surfaces 190 located between two adjacent drainage ports 130 are connected to each other, so that the liquid discharged from the drainage port 130 can flow along the two guide surfaces 190 to the area corresponding to the other drainage port 130, which is beneficial for the liquid discharged from different drainage ports 130 to complement each other and make the liquid amount uniform, thereby improving the effect of the liquid separation device 100 in supplying liquid to the outside.

[0116] In some embodiments, the area S of the drain port 130 satisfies: 0.5 mm 2 ≤S≤1.5mm 2 That is to say, in this embodiment, the area S of the drain port 130 can be 0.5 mm 2 , 0.6mm 2 , 0.7mm 2 , 0.8mm 2 , 0.9mm 2 , 1.0mm 2 , 1.1mm 2 , 1.2mm 2 , 1.3mm 2 , 1.4mm 2 , 1.5mm 2In the embodiment of the present invention, the area S of the discharge port 130 is any value or a range value between any two values. Specifically, when the contour shape of the discharge port 130 is a regular shape such as a circle or a square, a direct measurement method can be used to measure the characteristic size of the discharge port 130 by a measuring tool, and the area S is calculated. In the case where the contour of the discharge port 130 is an irregular shape, the area S can be measured by optical measurement or image measurement, for example, using a projector, a camera or a scanner to obtain an image of the discharge port 130, and using image processing software to measure it. The image is edge detected or contour extracted, and then the area of ​​the discharge port 130 is calculated. Setting the area of ​​the discharge port 130 within the above range is conducive to controlling the flow rate of the liquid entering the liquid outlet trough 140, thereby producing a better waterfall-type water flow effect. In particular, when the liquid separation device 100 is applied to the cleaning device 10 and the surface to be cleaned is cleaned, the flow control of the cleaning device 10 can be used to quickly achieve a better waterfall-type liquid supply effect, improve the uniformity of the liquid distribution on the cleaning roller 200, and improve the cleaning effect and user experience.

[0117] Please refer again Figure 2 In some embodiments, the dimension L1 of the notch 141 of the liquid outlet trough 140 in the length direction X of the liquid dispensing device 100 satisfies: 250mm≤L1≤270mm. That is, in this embodiment, the dimension L1 can be any value of 250mm, 251mm, 252mm, 253mm, 254mm, 255mm, 256mm, 257mm, 258mm, 259mm, 260mm, 261mm, 262mm, 263mm, 264mm, 265mm, 266mm, 267mm, 268mm, 269mm, 270mm or a range between any two values. Specifically, the dimension L1 can be measured by a measuring tool such as a vernier caliper. Setting the dimension L1 within this range can match the length dimension of the cleaning roller 200 in the cleaning device 10, so that the waterfall-like water flow formed by the notch 141 of the liquid outlet trough 140 can be spread on the cleaning roller 200 as much as possible, making the liquid distribution of the cleaning roller 200 in the length direction X thereof more uniform.

[0118] In some embodiments, the liquid separation device 100 can be an integrated structure. During the integrated processing, the liquid inlet 110, the diversion cavity 120, multiple liquid discharge ports 130 and the liquid outlet trough 140 are formed in the liquid separation device 100 structure to ensure the integrity and sealing of the structure.

[0119] In some embodiments, the liquid separation device 100 may be a split structure, and the difficulty of processing is reduced by processing different structural components separately and assembling the liquid separation device 100. For example, please refer to Figures 10 to 13In the illustrated embodiment, the liquid dispensing device 100 includes a first shell 150, a main body 160 and a second shell 170. The liquid inlet 110 is provided on the first shell 150, and the liquid inlet 110 can be formed thereon when the first shell 150 is processed. The main body 160 is connected to one side of the first shell 150, and the second shell 170 is connected to the side of the main body 160 away from the first shell 150, that is, the main body 160 is located between the first shell 150 and the second shell 170, and the second shell 170, the main body 160 and the first shell 150 are connected to each other to form the diverter cavity 120, so that when the first shell 150, the second shell 170 and the main body 160 are processed separately, the various parts of the diverter cavity 120 can be formed thereon, and after the three are assembled, the various parts are combined to form the diverter cavity 120. The liquid outlet groove 140 and multiple drainage ports 130 are arranged on the second shell 170, and the multiple drainage ports 130 are located on the side of the second shell 170 facing the main body 160. When processing the second shell 170, multiple drainage ports 130 can be formed on the surface of one side thereof, a liquid outlet groove 140 connecting multiple drainage ports 130 can be formed inside the second shell 170, and a notch 141 of the liquid outlet groove 140 can be formed on the first surface 180 on the other side thereof.

[0120] Please refer again Fig.11 and Fig.13 The flow-dividing cavity 120 has a first cavity 121, a plurality of flow-dividing holes 122, and a second cavity 123. The first cavity 121 is disposed between the first shell 150 and the main body 160, and is connected to the liquid inlet 110. A plurality of flow-dividing holes 122 are disposed in the main body 160, and the flow-dividing holes 122 are connected to the first cavity 121, and are connected to the liquid inlet 110 through the first cavity 121. The second cavity 123 is disposed between the main body 160 and the second shell 170, and each flow-dividing hole 122 is connected to at least two liquid discharge ports 130 through the second cavity 123. By providing the first cavity 121, the plurality of diversion holes 122, and the second cavity 123, the liquid can flow into the first cavity 121, the plurality of diversion holes 122, and the second cavity 123 in sequence through the liquid inlet 110, and a one-to-two, two-to-four, or four-to-eight diversion effect can be formed in the maze-like diversion structure of the first cavity 121. When the liquid flows into the second cavity 123 through the plurality of diversion holes 122, the liquid is further diverted, so that the liquid is spread over a wider range.

[0121] Among them, the second cavity 123 extends in an arc shape from the diversion hole 122 to the discharge port 130, so that the liquid can be diverted relatively smoothly, reducing the pressure and water flow caused by the liquid impacting the cavity wall of the second cavity 123, which is beneficial to the uniform distribution of the liquid in the liquid outlet groove 140 and forming a waterfall-like water flow, thereby improving the water supply effect.

[0122] Second, please refer to Figures 1 to 13The liquid separation device 100 provided in the embodiment of the present application is provided with a liquid inlet 110, a diversion cavity 120, a plurality of liquid discharge ports 130 and a liquid outlet trough 140.

[0123] The liquid can enter the liquid separation device 100 through the liquid inlet 110. Specifically, the liquid separation device 100 can be connected to an external liquid supply pipeline and a water pump through its liquid inlet 110, and the liquid is pumped into the liquid inlet 110 through the water pump and the water supply pipeline.

[0124] The diverter cavity 120 and the plurality of liquid discharge ports 130 are both disposed in the liquid separation device 100. The inlet end of the diverter cavity 120 is connected to the liquid inlet 110, and the outlet end is connected to the plurality of liquid discharge ports 130. That is, the plurality of liquid discharge ports 130 can be connected to the liquid inlet 110 through the diverter cavity 120. Thus, the liquid entering the liquid separation device 100 from the liquid inlet 110 can enter the diverter cavity 120, and be diverted into multiple streams through the diverter cavity 120, so that the liquid is dispersed and flows into the plurality of liquid discharge ports 130, so that the liquid is discharged from multiple different positions, and the distribution range of the liquid is expanded.

[0125] The liquid outlet groove 140 is connected with the plurality of liquid discharge ports 130, and is connected with the diversion chamber 120 through the plurality of liquid discharge ports 130, so that the liquid diverted by the diversion chamber 120 can flow to the liquid outlet groove 140 through the plurality of liquid discharge ports 130. Thus, when the liquid distributing device 100 supplies liquid, the liquid dispersedly flowing into the plurality of liquid discharge ports 130 through the diversion chamber 120 can enter the liquid outlet groove 140, and gather in the liquid outlet groove 140 to fill the liquid outlet groove 140, so that the liquid is evenly distributed at each position in the liquid outlet groove 140, and then the liquid can overflow from the slot 141 to form a uniformly spread waterfall-like water flow, thereby effectively improving the uniformity of the water flow at each position of the slot 141.

[0126] In some embodiments, the slot 141 of the liquid outlet trough 140 is disposed on the first surface 180 of the liquid separation device 100 facing the cleaning roller 200, so that the liquid overflowing from the slot 141 can be evenly supplied to the cleaning roller 200, so that the liquid on the cleaning roller 200 is more evenly distributed, which can improve the cleaning effect of the surface to be cleaned and the cleaning roller 200, and improve the uniformity of the water stain distribution on the surface to be cleaned.

[0127] Please also refer to Figure 3 and Figure 4, in the height direction Z of the liquid separation device 100, the size of the notch 141 is H1, and the size of the liquid separation device 100 is H2, which satisfies: 0.017≤H1 / H2≤0.095. That is to say, the ratio H1 / H2 of the size of the notch 141 and the liquid separation device 100 can be any value among 0.017, 0.021, 0.025, 0.029, 0.033, 0.037, 0.041, 0.045, 0.049, 0.053, 0.057, 0.061, 0.065, 0.069, 0.073, 0.077, 0.081, 0.085, 0.089, 0.093 or a range value between any two values. Specifically, the sizes H1 and H2 can be measured by a dimensional measuring tool such as a vernier caliper, or by an optical or imaging measurement method. By setting H1 / H2 within the above range, the size of the liquid separation device 100 and the size of the slot 141 are interrelated. In view of the size range that the liquid separation device 100 usually has, the size of the slot 141 is H1 small enough, so that the size of the slot 141 is narrow enough to form a slit structure, which can make full use of the tension and capillary effect of the liquid. Through the capillary effect, the liquid can flow freely in the narrow space of the slot 141. When the liquid enters the liquid outlet 140 through multiple drainage ports 130, under the dual effects of the surface tension of the liquid and the capillary effect, the slot 141 of the liquid outlet can be more evenly filled, so that each position of the slot 141 is evenly filled with liquid. In the cleaning device 10, as the cleaning roller 200 rotates, the liquid at the slot 141 is disturbed, so that the tension of the liquid is destroyed, and it can be evenly spread from the slot 141 to the cleaning roller 200. Moreover, under the action of capillary effect, the liquid can continuously flow toward the groove 141 and fill the groove 141, and spread evenly on the cleaning roller 200, further enhancing the uniformity and continuity of the liquid supply, enhancing the uniformity of the liquid distribution on the cleaning roller 200, and improving the cleaning effect of the surface to be cleaned and the cleaning roller 200, as well as the uniformity of the water stain distribution on the surface to be cleaned.

[0128] When the ratio of H1 / H2 is within the range of 0.017 to 0.095, the smaller the ratio, the narrower the slot 141, the more obvious the tension and capillary effect of the liquid, and accordingly, the more evenly the liquid is distributed; when the ratio is larger, the slot 141 becomes relatively wider, the water resistance to the liquid is correspondingly reduced, and the liquid flows out more smoothly. In summary, within the above ratio range, the smooth flow of the liquid in the liquid separation device 100 can be ensured, and the capillary effect of the liquid can be maintained, ensuring the uniformity of the liquid distribution while also ensuring the continuity of the liquid discharge.

[0129] In addition, when H1 / H2 is less than 0.017, the slot 141 becomes narrower, which may cause the liquid to flow unsmoothly at the slot 141. This is because when the slot 141 is too narrow, the flow of liquid at the slot 141 will be restricted and cannot overflow smoothly, causing pressure to build up in the liquid separation device 100, affecting the outflow of liquid, and thus affecting the liquid supply to the cleaning roller 200. On the other hand, when H1 / H2 is greater than 0.095, the slot 141 becomes too wide, which will affect the capillary effect of the liquid. Due to the wide size of the slot 141, the capillary effect will be reduced or even fail, affecting the uniformity of liquid distribution.

[0130] Please read again Figure 3 and Figure 4 In some embodiments, the size H2 of the liquid dispensing device 100 also satisfies: 21mm≤H2≤23.5mm. That is, in this embodiment, H2 can be any value among 21.0mm, 21.1mm, 21.2mm, 21.3mm, 21.4mm, 21.5mm, 21.6mm, 21.7mm, 21.8mm, 21.9mm, 22.0mm, 22.1mm, 22.2mm, 22.3mm, 22.4mm, 22.5mm, 22.6mm, 22.7mm, 22.8mm, 22.9mm, 23.0mm, 23.1mm, 23.2mm, 23.3mm, 23.4mm, 23.5mm, or a range value between any two values. Specifically, the size H2 can be measured by a dimension measuring tool such as a vernier caliper, or by an optical or imaging measurement method. This setting enables the height dimension H2 of the liquid separation device 100 to be suitable for most cleaning equipment 10, and will not cause excessive occupation of the internal space of the cleaning equipment 10. And it can meet the internal space requirements of the liquid separation device 100, so that it has enough space to arrange the liquid inlet 110, the diversion chamber 120, the discharge port 130 and the liquid outlet 140, and at the same time its external dimensions are relatively small, which is conducive to miniaturization and lightweight. In addition, based on H2 and H1 / H2, the size H1 of the notch 141 can be determined, which can ensure the smooth flow of liquid in the liquid separation device 100 and maintain the capillary effect of the liquid, ensuring the uniformity of liquid distribution while also ensuring the continuity of liquid discharge. Optionally, the size H1 of the notch 141 in the height direction Z of the liquid separation device 100 satisfies: 0.4mm≤H1≤2mm.

[0131] Please also read Figures 3 to 9In some embodiments, the liquid discharge port 130 is located on the side of the liquid outlet 140 away from the cleaning roller 200, so that the liquid discharged from the liquid discharge port 130 can keep flowing toward the side where the slot 141 is located without a large turn or obstacle. This arrangement can make the liquid flow smoothly to the slot 141, reduce turbulence and disturbance caused by large turns or obstacles, reduce the influence on liquid tension and capillary effect, and keep the liquid evenly distributed at the slot 141.

[0132] The spacing D1 between the discharge port 130 and the notch 141 satisfies: 3mm≤D1≤6mm. That is, in the present embodiment, D1 can be any value among 3mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, 4.0mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm, 5.0mm, 5.1mm, 5.2mm, 5.3mm, 5.4mm, 5.5mm, 5.6mm, 5.7mm, 5.8mm, 5.9mm, 6mm, or a range between any two values. Specifically, the dimension D1 can be measured by a dimension measuring tool such as a vernier caliper, or by an optical or imaging measurement method. The spacing D1 between the drain port 130 and the notch 141 is set to be above 3mm, and the liquid discharged from the drain port 130 will first enter the liquid outlet slot 140, and will flow at least the distance of the spacing D1 before reaching the notch 141. During the flow process, the liquid discharged from multiple drain ports 130 has sufficient space to converge and achieve uniform distribution. In addition, the spacing D1 is set to be below 6mm, so that the liquid outlet slot 140 does not occupy too much internal space of the liquid separation device 100, and sufficient layout space is reserved for the diversion chamber 120, so that the diversion effect can be better and the range of liquid distribution is wider. Furthermore, the spacing D1 is set to be below 6mm, which can reduce the filling time of the liquid outlet slot 140, that is, the liquid can quickly fill the liquid outlet slot 140, which is conducive to maintaining the continuity of the liquid supply to the outside. In addition, under this size range, there is also enough space to set the diversion structure from the drain port 130 to the notch 141, which further improves the uniformity of liquid distribution and improves the effect of liquid discharge.

[0133] Please also read Figure 5 , Figure 6 and Figure 7In some embodiments, a plurality of liquid discharge ports 130 are arranged at intervals along the length direction X of the liquid separation device 100, and the liquid outlet groove 140 connects the plurality of liquid discharge ports 130, and thus also extends along the length direction X. Accordingly, the notch 141 also extends along the length direction X of the liquid separation device 100, so that it can match the length of the cleaning roller 200, so that the supplied liquid is more evenly distributed in the length direction of the cleaning roller 200. The liquid separation device 100 includes a plurality of guide surfaces 190, and guide surfaces 190 are provided on both sides of each liquid discharge port 130 along the length direction X of the liquid separation device 100. The guide surfaces 190 are used to guide the liquid discharged from the liquid discharge port 130 into the liquid outlet groove 140. By providing the guide surfaces 190, the liquid discharged from each liquid discharge port 130 can be more smoothly guided to each corner of the liquid outlet groove 140, so that the liquid fills the liquid outlet groove 140, thereby being more easily evenly distributed at the notch 141 of the liquid outlet groove 140, thereby improving the uniformity of the liquid discharge. Specifically, one end of the guide surface 190 may be disposed at the liquid discharge port 130 , and the liquid flowing out of the liquid discharge port 130 may flow along the guide surface 190 in the liquid outlet groove 140 , and finally fill the entire liquid outlet groove 140 .

[0134] Specifically, in some embodiments, the liquid separation device 100 includes a plurality of guide portions 195 arranged at intervals along the length direction X of the liquid separation device 100, and a liquid discharge port 130 is provided between two adjacent guide portions 195, that is, guide portions 195 are provided on both sides of the liquid discharge port 130. It can be understood that the guide portion 195 is a guide structure provided in the liquid separation device 100, and the guide surface 190 is a side surface of the guide portion 195 for guiding the liquid and guiding the liquid from the liquid discharge port 130 to the liquid outlet 140.

[0135] The liquid outlet 140 has a plurality of first slot sections 142 and a second slot section 143 connecting the plurality of first slot sections 142. The first slot section 142 is arranged between two adjacent guide portions 195, so that each first slot section 142 corresponds to a position of a liquid discharge port 130 and is connected to each other. The guide surface 190 is the surface of the guide portion 195 facing the first slot section 142, so that the liquid discharged from the liquid discharge port 130 can flow into the first slot section 142 and flow along the guide surface 190 to fill the entire first slot section 142. The second slot section 143 connects the plurality of first slot sections 142, so that the liquids of the plurality of first slot sections 142 can converge in the second slot section 143, and the liquid in any first slot section 142 can also flow into other first slot sections 142 via the second slot section 143, so as to achieve the regulation and dispatch of the liquid between the plurality of first slot sections 142, so that the liquid can be evenly distributed in the entire liquid outlet 140. The second slot section 143 is arranged on one side of the guide portion 195 close to the notch 141, that is, the second slot section 143 is located between the plurality of first slot sections 142 and the notch 141, and the liquid can flow into the notch 141 through the first slot section 142 and the second slot section 143 in sequence. In this process, combined with the guiding function of the guide portion 195 and the guide surface 190, the liquid can fill the liquid outlet slot 140 and spread evenly at the notch 141 to form a waterfall-like water flow, and evenly supply outward. Specifically, the second slot section 143 and the notch 141 both extend along the length direction X of the liquid separation device 100.

[0136] Please combine Figure 4 and Figure 7 In some embodiments, the distance D2 between the guide portion 195 and the notch 141 satisfies: 0.5 mm ≤ D2 ≤ 1.5 mm. That is, in this embodiment, D2 can be any value among 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, or a range between any two values. Specifically, the dimension D2 can be measured by a dimension measuring tool such as a vernier caliper, or by an optical or imaging measurement method. By setting the spacing D2 within the above range, on the one hand, a second slot section 143 connecting multiple first slot sections 142 can be formed on the side of the guide part 195 close to the notch 141, and on the other hand, a relatively narrow capillary structure can be formed by the second slot section 143 at the guide part 195 close to the notch 141. When the liquid in the first slot section 142 enters the second slot section 143, it can flow along the first direction X at this position due to liquid tension and capillary effect, so that the space on both sides of the guide part 195 can be filled with liquid, thereby ensuring that the entire liquid outlet groove 140 can be filled with liquid, achieving a better liquid outlet effect.

[0137] See also Figure 7In some embodiments, the liquid discharge port 130 is located on the side of the liquid outlet 140 away from the cleaning roller 200, so that the liquid discharged from the liquid discharge port 130 can keep flowing toward the side where the slot 141 is located without a large turn or obstacle. This arrangement can make the liquid flow smoothly to the slot 141, reduce turbulence and disturbance caused by large turns or obstacles, reduce the influence on liquid tension and capillary effect, and keep the liquid evenly distributed at the slot 141.

[0138] The distance between the drain port 130 and the slot 141 is D1, and the distance between the guide portion 195 and the slot 141 is D2, which satisfies: 4≤D1 / D2≤6. That is, in this embodiment, D1 / D2 can be any value among 4, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 6, or a range between any two values. This range also limits the space occupied by the guide portion 195 in the liquid outlet groove 140 in the Y direction. On the one hand, a connecting section that can connect multiple discharge ports 130 is reserved in the liquid outlet groove 140, which is beneficial for the discharge volumes of different discharge ports 130 to complement each other and is beneficial for the formation of a waterfall. On the other hand, by controlling the overall size ratio of the second groove section 143 to the liquid outlet groove 140, it is beneficial to reduce the filling time of the liquid outlet groove 140 and improve the continuity of the liquid discharge.

[0139] Please refer again Figure 6 and Figure 7 , the size of the first slot section 142 in the length direction X of the liquid separation device 100 increases from the liquid discharge port 130 to the second slot section 143. That is to say, the first slot section 142 is a region that gradually expands from the liquid discharge port 130 to the second slot section 143. Accordingly, the guide surfaces 190 on both sides of the first slot section 142 form a trumpet-shaped structure that expands outward, so that the liquid discharged from the liquid discharge port 130 flows in a radial and gradually expanding trend, which is conducive to the liquid quickly filling the entire liquid outlet slot 140, and then better forming a waterfall-like water flow, which is spread outward from the slot 141.

[0140] Please combine Figure 7 , Figure 8 and Fig. 9 Optionally, at least part of the guide surface 190 may be a plane or an arc surface, wherein the arc surface refers to an arc-shaped curved surface, and the arc shape may be a circular arc shape or an elliptical arc shape. It should be noted that the above arc shape may not be a standard circular arc shape or an elliptical arc shape, as long as it roughly presents a corresponding shape.

[0141] Specifically, in Figure 7In the embodiment shown, at least part of the guide surface 190 is a plane, and the plane is arranged in the liquid separation device 100 at an angle relative to the Y direction. The structure is relatively simple and easy to manufacture, which can reduce the manufacturing cost and improve the production efficiency. The liquid flows along the plane, which can reduce the impact on the guide surface 190, reduce turbulence, and make the liquid fill the liquid tank 140 more stably.

[0142] exist Figure 8 and Fig. 9 In the embodiment shown, at least a portion of the guide surface 190 is a curved surface, which may be as follows: Figure 8 The surface protruding toward the liquid outlet groove 140 as shown in the figure may also be as shown in the figure Fig. 9 The concave surface is shown as being concave toward the side away from the liquid outlet groove 140. The arc-shaped flow guiding surface 190 can reduce the flow resistance of the liquid, so that the liquid can flow more smoothly during the flow guiding process, thereby reducing energy loss.

[0143] Please also read Figures 5 to 9 In some embodiments, the two guide surfaces 190 located between two adjacent drainage ports 130 are connected to each other, so that the liquid discharged from the drainage port 130 can flow along the two guide surfaces 190 to the area corresponding to the other drainage port 130, which is beneficial for the liquid discharged from different drainage ports 130 to complement each other and make the liquid amount uniform, thereby improving the effect of the liquid separation device 100 in supplying liquid to the outside.

[0144] In some embodiments, the area S of the drain port 130 satisfies: 0.5 mm 2 ≤S≤1.5mm 2 That is to say, in this embodiment, the area S of the drain port 130 can be 0.5 mm 2 , 0.6mm 2 , 0.7mm 2 , 0.8mm 2 , 0.9mm 2 , 1.0mm 2 , 1.1mm 2 , 1.2mm 2 , 1.3mm 2 , 1.4mm 2 , 1.5mm 2In the embodiment of the present invention, the area S of the discharge port 130 is any value or a range value between any two values. Specifically, when the contour shape of the discharge port 130 is a regular shape such as a circle or a square, a direct measurement method can be used to measure the characteristic size of the discharge port 130 by a measuring tool, and the area S is calculated. In the case where the contour of the discharge port 130 is an irregular shape, the area S can be measured by optical measurement or image measurement, for example, using a projector, a camera or a scanner to obtain an image of the discharge port 130, and using image processing software to measure it. The image is edge detected or contour extracted, and then the area of ​​the discharge port 130 is calculated. Setting the area of ​​the discharge port 130 within the above range is conducive to controlling the flow rate of the liquid entering the liquid outlet trough 140, thereby producing a better waterfall-type water flow effect. In particular, when the liquid separation device 100 is applied to the cleaning device 10 and the surface to be cleaned is cleaned, the flow control of the cleaning device 10 can be used to quickly achieve a better waterfall-type liquid supply effect, improve the uniformity of the liquid distribution on the cleaning roller 200, and improve the cleaning effect and user experience.

[0145] Please refer again Figure 2 In some embodiments, the dimension L1 of the notch 141 of the liquid outlet trough 140 in the length direction X of the liquid dispensing device 100 satisfies: 250mm≤L1≤270mm. That is, in this embodiment, the dimension L1 can be any value of 250mm, 251mm, 252mm, 253mm, 254mm, 255mm, 256mm, 257mm, 258mm, 259mm, 260mm, 261mm, 262mm, 263mm, 264mm, 265mm, 266mm, 267mm, 268mm, 269mm, 270mm or a range between any two values. Specifically, the dimension L1 can be measured by a measuring tool such as a vernier caliper. Setting the dimension L1 within this range can match the length dimension of the cleaning roller 200 in the cleaning device 10, so that the waterfall-like water flow formed by the notch 141 of the liquid outlet trough 140 can be spread on the cleaning roller 200 as much as possible, making the liquid distribution of the cleaning roller 200 in the length direction X thereof more uniform.

[0146] In some embodiments, the liquid separation device 100 can be an integrated structure. During the integrated processing, the liquid inlet 110, the diversion cavity 120, multiple liquid discharge ports 130 and the liquid outlet trough 140 are formed in the liquid separation device 100 structure to ensure the integrity and sealing of the structure.

[0147] In some embodiments, the liquid separation device 100 may be a split structure, and the difficulty of processing is reduced by processing different structural components separately and assembling the liquid separation device 100. For example, please refer to Figures 10 to 13In the illustrated embodiment, the liquid dispensing device 100 includes a first shell 150, a main body 160 and a second shell 170. The liquid inlet 110 is provided on the first shell 150, and the liquid inlet 110 can be formed thereon when the first shell 150 is processed. The main body 160 is connected to one side of the first shell 150, and the second shell 170 is connected to the side of the main body 160 away from the first shell 150, that is, the main body 160 is located between the first shell 150 and the second shell 170, and the second shell 170, the main body 160 and the first shell 150 are connected to each other to form the diverter cavity 120, so that when the first shell 150, the second shell 170 and the main body 160 are processed separately, the various parts of the diverter cavity 120 can be formed thereon, and after the three are assembled, the various parts are combined to form the diverter cavity 120. The liquid outlet groove 140 and multiple drainage ports 130 are arranged on the second shell 170, and the multiple drainage ports 130 are located on the side of the second shell 170 facing the main body 160. When processing the second shell 170, multiple drainage ports 130 can be formed on the surface of one side thereof, a liquid outlet groove 140 connecting multiple drainage ports 130 can be formed inside the second shell 170, and a notch 141 of the liquid outlet groove 140 can be formed on the first surface 180 on the other side thereof.

[0148] Please refer again Fig.11 and Fig.13 The flow-dividing cavity 120 has a first cavity 121, a plurality of flow-dividing holes 122, and a second cavity 123. The first cavity 121 is disposed between the first shell 150 and the main body 160, and is connected to the liquid inlet 110. A plurality of flow-dividing holes 122 are disposed in the main body 160, and the flow-dividing holes 122 are connected to the first cavity 121, and are connected to the liquid inlet 110 through the first cavity 121. The second cavity 123 is disposed between the main body 160 and the second shell 170, and each flow-dividing hole 122 is connected to at least two liquid discharge ports 130 through the second cavity 123. By providing the first cavity 121, the plurality of diversion holes 122, and the second cavity 123, the liquid can flow into the first cavity 121, the plurality of diversion holes 122, and the second cavity 123 in sequence through the liquid inlet 110, and a one-to-two, two-to-four, or four-to-eight diversion effect can be formed in the maze-like diversion structure of the first cavity 121. When the liquid flows into the second cavity 123 through the plurality of diversion holes 122, the liquid is further diverted, so that the liquid is spread over a wider range.

[0149] Among them, the second cavity 123 extends in an arc shape from the diversion hole 122 to the discharge port 130, so that the liquid can be diverted relatively smoothly, reducing the pressure and water flow caused by the liquid impacting the cavity wall of the second cavity 123, which is beneficial to the uniform distribution of the liquid in the liquid outlet groove 140 and forming a waterfall-like water flow, thereby improving the water supply effect.

[0150] Third, please also refer to Figures 14 to 16, an embodiment of the present application provides a cleaning device, which includes a cleaning roller 200 and a liquid separation device 100 as in any of the above embodiments, and the liquid separation device 100 is used to supply liquid to the cleaning roller 200. It can be understood that the cleaning device can be a surface cleaning device for various use environments such as floors, walls, and glass, which has a cleaning roller 200 and a liquid separation device 100. For example, the cleaning device can be a floor brush, a floor scrubber including a floor brush, or a complete cleaning system including a floor scrubber and a base station. The cleaning device can include all the technical features and technical effects of the above-mentioned liquid separation device 100, and the structure of the liquid separation device 100 and the corresponding effects are not described in detail here.

[0151] In some embodiments, the length direction X of the liquid separation device 100 is consistent with the length direction X of the cleaning roller 200, that is, the notch 141 of the liquid separation device 100 is roughly parallel to the central axis OO' of the cleaning roller 200. In addition, in the length direction X, the size of the notch 141 of the liquid separation device 100 is L1, and the size of the cleaning roller 200 is L2, satisfying: 0.8≤L1 / L2≤1.2. That is to say, in this embodiment, L1 / L2 can be any value among 0.8, 0.9, 1.0, 1.1, 1.2 or a range value between any two values. Specifically, the dimensions L1 and L2 can be measured by measuring tools such as vernier calipers. By setting the ratio of the dimensions L1 and L2 within this range, the length dimension of the slot 141 can be matched with the length dimension of the cleaning roller 200, so that the waterfall-like water flow formed by the slot 141 of the liquid outlet trough 140 can be spread on the cleaning roller 200 as much as possible, and the liquid distribution of the cleaning roller 200 in its length direction X can be more uniform, thereby improving the surface cleaning and self-cleaning effects of the cleaning device 10.

[0152] See also Fig.16 In some embodiments, the slot 141 of the liquid separation device 100 contacts the cleaning roller 200, so that when the cleaning roller 200 rotates, its bristles can directly disturb the liquid filled in the slot 141, destroying the surface tension of the liquid, so that the liquid in the liquid separation device 100 overflows in the form of a waterfall, spreads evenly on the cleaning roller 200, and fully soaks the bristles of the cleaning roller 200, thereby improving the self-cleaning effect of the cleaning roller 200 and the cleaning effect on the surface to be cleaned.

[0153] In some embodiments, the cleaning roller 200 is configured to have a first rotation state, in which the cleaning roller 200 is spaced from the notch 141 of the liquid separation device 100. The "first rotation state" may be the instantaneous state when the cleaning roller 200 starts to rotate, that is, the moment when the rotation is started, at which the cleaning roller 200 is spaced from the notch 141, and the cleaning roller 200 rotates first, and the dirt attached to its bristles is relatively dry and easy to be cleaned by the comb teeth. As the cleaning roller 200 rotates, the airflow formed by it can destroy the surface tension of the liquid at the notch 141, thereby forming a waterfall. In addition, after passing through the first rotation state, the cleaning roller 200 can remain spaced from the notch 141, and the liquid at the notch 141 is disturbed by the airflow, so that the liquid is continuously supplied. Alternatively, after passing through the first rotation state, it can also be set so that the cleaning roller 200 is in contact with the notch 141, and the liquid at the notch 141 is directly disturbed by the bristles, so that the liquid is continuously supplied.

[0154] Please refer again Fig.16 In some embodiments, the distance M between the notch 141 of the liquid separation device 100 and the central axis of the cleaning roller 200 satisfies: 35mm≤M≤50mm. That is to say, in this embodiment, M can be any value among 35mm, 36mm, 37mm, 38mm, 39mm, 40mm, 41mm, 42mm, 43mm, 44mm, 45mm, 46mm, 47mm, 48mm, 49mm, 50mm, or a range value between any two values. Specifically, the dimension M can be measured by a dimension measuring tool such as a vernier caliper, or by an optical or imaging measurement method. The distance M between the notch 141 and the central axis of the cleaning roller 200 is set within the above range, so that the cleaning roller 200 can produce a better turbulence effect when rotating, quickly destroy the surface tension of the liquid at the notch 141, produce a waterfall-like water supply, so that the liquid in the notch 141 can be spread very evenly on the cleaning roller 200, and improve the cleaning effect. Within this range, when the value of M is larger, the spacing between the notch 141 and the cleaning roller 200 is larger, the interference of the liquid separation device 100 on the cleaning roller 200 when the cleaning roller 200 rotates is smaller, the friction of the cleaning roller 200 when rotating is reduced, and the friction on the bristles is reduced, which can increase the service life and reduce energy consumption. When the value of M is smaller, the spacing between the notch 141 and the cleaning roller 200 is smaller, and the bristles or the airflow generated by the bristles when the cleaning roller 200 rotates will cause greater disturbance to the liquid at the notch 141, so that the full liquid at the notch 141 can continue to overflow and spread more evenly and continuously on the cleaning roller 200, thereby improving the uniformity of liquid distribution on the cleaning roller 200 and improving the cleaning and self-cleaning effects.

[0155] In some embodiments, the cleaning device 10 is configured to have a first working state of cleaning the surface to be cleaned, that is, the state of the cleaning device 10 performing surface cleaning is the "first working state". In the first working state, the liquid flow rate Q1 supplied by the liquid separation device 100 to the cleaning roller 200 satisfies: 15 mL / min≤Q1≤50 mL / min. In this embodiment, the liquid flow rate Q1 can be any flow rate value of 15mL / min, 16mL / min, 17mL / min, 18mL / min, 19mL / min, 20mL / min, 21mL / min, 22mL / min, 23mL / min, 24mL / min, 25mL / min, 26mL / min, 27mL / min, 28mL / min, 29mL / min, 30mL / min, 31mL / min, 32mL / min, 33mL / min, 34mL / min, 35mL / min, 36mL / min, 37mL / min, 38mL / min, 39mL / min, 40mL / min, 41mL / min, 42mL / min, 43mL / min, 44mL / min, 45mL / min, 46mL / min, 47mL / min, 48mL / min, 49mL / min, and 50mL / min, or a range value between any two flow rate values. Specifically, the flow value Q1 can be measured by a flowmeter at the liquid inlet 110 of the liquid separation device 100. In actual use, the water pump flow rate can be controlled within the above range so that the liquid separation device 100 can quickly form a waterfall-like water flow. Without waiting too long, the cleaning roller 200 can evenly obtain liquid supply, achieve full infiltration of the cleaning roller 200, and then achieve wet cleaning of the ground surface to be cleaned, ensuring sufficient cleaning power. In addition, the above flow control can also prevent the drain port 130 from being blocked and maintain smooth drainage. When the flow rate Q1 exceeds 50mL / min, although the wetting effect of the cleaning roller 200 is better and the cleaning effect on the surface is improved, it may cause more liquid residue on the surface, and excessive water stains will take longer to dry. Optionally, the liquid flow rate Q1 supplied by the liquid separation device 100 to the cleaning roller 200 also satisfies: 20mL / min≤Q1≤25mL / min. Setting Q1 at 20mL / min to 25mL / min can achieve better cleaning power and less residual water stains, achieve a balance between cleaning effect and residual water stains, and provide a better user experience.

[0156] In some embodiments, the cleaning device 10 is configured to have a self-cleaning state for cleaning the cleaning roller 200, that is, the state of the cleaning device 10 when cleaning the cleaning roller 200 is the "self-cleaning state". In the self-cleaning state, the liquid separation device 100 is configured to supply liquid to the cleaning roller 200 in a first stage and a second stage. In the first stage, the liquid flow rate Q2 supplied by the liquid separation device 100 to the cleaning roller 200 satisfies: 15mL / min≤Q2≤50mL / min; in the second stage, the liquid flow rate Q3 supplied by the liquid separation device 100 to the cleaning roller 200 satisfies: 150mL / min≤Q3≤250mL / min. That is to say, in the first stage, Q2 can be any flow rate value of 15mL / min, 16mL / min, 17mL / min, 18mL / min, 19mL / min, 20mL / min, 21mL / min, 22mL / min, 23mL / min, 24mL / min, 25mL / min, 26mL / min, 27mL / min, 28mL / min, 29mL / min, 30mL / min, 31mL / min, 32mL / min, 33mL / min, 34mL / min, 35mL / min, 36mL / min, 37mL / min, 38mL / min, 39mL / min, 40mL / min, 41mL / min, 42mL / min, 43mL / min, 44mL / min, 45mL / min, 46mL / min, 47mL / min, 48mL / min, 49mL / min, and 50mL / min, or a range value between any two flow rate values. In the second stage, Q3 can be any flow value among 150mL / min, 154mL / min, 158mL / min, 162mL / min, 166mL / min, 170mL / min, 174mL / min, 178mL / min, 182mL / min, 186mL / min, 190mL / min, 194mL / min, 198mL / min, 202mL / min, 206mL / min, 210mL / min, 214mL / min, 218mL / min, 222mL / min, 226mL / min, 230mL / min, 234mL / min, 238mL / min, 242mL / min, 246mL / min, 250mL / min, or a range value between any two flow values. Specifically, the flow values ​​Q2 and Q3 can be measured by a flowmeter at the liquid inlet 110 of the liquid separation device 100.In the first stage, Q2 is controlled within the flow range of 15mL / min to 50mL / min, so that the liquid separation device 100 can quickly form a waterfall-like water flow, and the liquid can be fully spread on the cleaning roller 200 without waiting too long, so as to achieve pre-wetting of the cleaning roller 200, so that the floating dust and other dirt on the cleaning roller 200 can be soaked by the liquid, and its fluidity is improved. In the second stage, Q3 is controlled within the flow range of 150mL / min to 250mL / min, and a slight pressure is formed in the liquid separation device 100. A large amount of liquid is ejected from the notch 141 under the action of pressure, which can fully soak and flush the cleaning roller 200, so that the dirt is quickly separated from the cleaning roller 200, and the cleaning effect of the cleaning roller 200 is improved.

[0157] In a fourth aspect, a self-cleaning method provided in an embodiment of the present application is applied to the cleaning device 10 of any of the above embodiments, and the self-cleaning method includes:

[0158] In response to the self-cleaning instruction, the liquid dispensing device 100 is controlled to supply liquid to the cleaning roller 200 in the first stage and the second stage successively;

[0159] In the first stage, the liquid flow rate Q2 supplied by the liquid separation device 100 to the cleaning roller 200 satisfies: 15 mL / min≤Q2≤50 mL / min;

[0160] In the second stage, the flow rate Q3 of the liquid supplied from the liquid separation device 100 to the cleaning roller 200 satisfies: 150 mL / min≤Q3≤250 mL / min.

[0161] Among them, the self-cleaning instruction is a command signal generated by the user operating the cleaning device 10. Under the self-cleaning instruction, the cleaning device 10 can start the self-cleaning program and implement the above-mentioned control steps, supplying liquid to the cleaning roller 200 in the first stage and the second stage successively to clean the cleaning roller 200. In the first stage, the liquid flow rate Q2 supplied satisfies: 15mL / min≤Q2≤50mL / min, which can ensure that the liquid separation device 100 quickly forms a waterfall-like water flow, so that the liquid is evenly spread on the cleaning roller 200, and the cleaning roller 200 is fully pre-soaked. Then in the second stage, the liquid flow rate Q3 supplied satisfies: 150mL / min≤Q3≤250mL / min, which can enable the cleaning roller 200 to obtain a sufficient amount of liquid to soak the cleaning roller 200 and improve the cleaning effect. Furthermore, in the second stage, the flow rate of the liquid is relatively large relative to the size of the notch 141 of the liquid outlet groove 140 of the liquid separation device 100, so that the liquid outlet pressure of the liquid separation device 100 is relatively large, which can achieve impact on the cleaning roller 200 and enhance the cleaning effect.

[0162] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0163] The liquid separation device and cleaning equipment provided in the embodiments of the present application are introduced in detail above, and the principles and implementation methods of the present application are explained by using specific examples. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A liquid separation device, characterized in that: Used to be arranged in a cleaning device, the liquid separation device comprises: Liquid inlet; A flow separation chamber, disposed in the liquid separation device and connected to the liquid inlet; A plurality of liquid discharge ports are arranged in the liquid separation device, the liquid discharge ports are communicated with the flow separation cavity, and are communicated with the liquid inlet through the flow separation cavity; A liquid outlet trough is connected to the plurality of liquid discharge ports and is connected to the diversion chamber through the plurality of liquid discharge ports. The liquid outlet trough is used to collect liquid discharged from the liquid discharge ports and supply the liquid to the cleaning roller of the cleaning device.

2. The liquid separation device according to claim 1, characterized in that: The liquid outlet groove has a notch, and the notch is arranged on the first surface of the liquid separation device facing the cleaning roller; In the height direction of the liquid separation device, the size of the notch is H1, and the size of the liquid separation device is H2, which satisfies: 0.017≤H1 / H2≤0.

095.

3. The liquid separation device according to claim 1, characterized in that: A dimension H1 of the notch of the liquid outlet groove in the height direction of the liquid separation device satisfies: 0.4 mm ≤ H1 ≤ 2 mm.

4. The liquid separation device according to any one of claims 1 to 3, characterized in that: The dimension H2 of the liquid separation device in the height direction satisfies: 21 mm ≤ H2 ≤ 23.5 mm.

5. The liquid separation device according to claim 2 or 3, characterized in that: The liquid discharge port is located at a side of the liquid outlet groove away from the cleaning roller, and a distance D1 between the liquid discharge port and the groove opening satisfies: 3mm≤D1≤6mm.

6. The liquid separation device according to claim 2 or 3, characterized in that: The plurality of liquid discharge ports are arranged at intervals along the length direction of the liquid separation device; The liquid separation device comprises a plurality of guide surfaces. Along the length direction of the liquid separation device, the guide surfaces are arranged on both sides of each of the liquid discharge ports. The guide surfaces are used to guide the liquid discharged from the liquid discharge ports into the liquid outlet groove.

7. The liquid separation device according to claim 6, characterized in that: The liquid separation device comprises a plurality of guide parts arranged at intervals along the length direction of the liquid separation device, and a liquid discharge port is provided between two adjacent guide parts; The liquid outlet trough has a plurality of first trough sections and a second trough section connecting the plurality of the first trough sections, the first trough section is arranged between two adjacent guide parts, the guide surface is the surface of the guide part facing the first trough section, and the second trough section is arranged on one side of the guide part close to the trough opening.

8. The liquid separation device according to claim 7, characterized in that: A distance D2 between the guide portion and the notch satisfies: 0.5 mm ≤ D2 ≤ 1.5 mm.

9. The liquid separation device according to claim 7, characterized in that: The drain port is located at a side of the liquid outlet groove away from the cleaning roller, the distance between the drain port and the slot is D1, and the distance between the guide portion and the slot is D2, satisfying: 4≤D1 / D2≤6.

10. The liquid separation device according to claim 7, characterized in that: From the liquid discharge port to the second groove section, the size of the first groove section in the length direction of the liquid separation device increases.

11. The liquid separation device according to claim 6, characterized in that: At least a portion of the guide surface is a plane; or at least a portion of the guide surface is a curved surface.

12. The liquid separation device according to claim 6, characterized in that: The two guide surfaces located between two adjacent liquid discharge ports are connected to each other.

13. The liquid separation device according to claim 1, characterized in that: The area S of the drainage port satisfies: 0.5mm 2 ≤S≤1.5mm 2 .

14. The liquid separation device according to claim 2 or 3, characterized in that: The dimension L1 of the notch in the length direction of the liquid separation device satisfies: 250 mm ≤ L1 ≤ 270 mm.

15. The liquid separation device according to claim 1, characterized in that: The liquid separation device comprises: a first shell, wherein the liquid inlet is arranged in the first shell; A main body connected to one side of the first shell; The second shell is connected to a side of the main body away from the first shell. The second shell, the main body and the first shell together form the diversion cavity. The liquid outlet trough and the plurality of liquid discharge ports are arranged in the second shell, and the plurality of liquid discharge ports are located on a side of the second shell facing the main body.

16. The liquid separation device according to claim 15, characterized in that: The diversion cavity has: A first cavity is disposed between the first shell and the main body; A plurality of diverter holes are provided in the main body, the diverter holes are connected to the first cavity and connected to the liquid inlet through the first cavity; A second cavity is provided between the main body and the second shell, and each of the diversion holes is connected to at least two of the drainage ports through the second cavity; The second cavity extends in an arc shape from the diversion hole to the liquid discharge port.

17. A cleaning device, characterized in that: include: Cleaning rollers; as well as, The liquid dispensing device according to any one of claims 1 to 16, wherein the liquid dispensing device is used to supply liquid to the cleaning roller.

18. The cleaning device according to claim 17, characterized in that The length direction of the liquid separation device is consistent with the length direction of the cleaning roller. In the length direction, the size of the notch of the liquid separation device is L1, and the size of the cleaning roller is L2, which satisfies: 0.8≤L1 / L2≤1.

2.

19. The cleaning device according to claim 17, characterized in that The notch of the liquid separation device contacts the cleaning roller.

20. The cleaning device according to claim 17, characterized in that The cleaning roller is configured to have a first rotation state in which the cleaning roller is spaced apart from the notch of the liquid separation device.

21. The cleaning device according to claim 17, characterized in that The distance M between the notch of the liquid separation device and the central axis of the cleaning roller satisfies: 35 mm ≤ M ≤ 50 mm.

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