Surface cleaning system

Abstract

The utility model belongs to the technical field of cleaning, and particularly provides a surface cleaning system which comprises a base and a cleaning main machine, the cleaning main machine comprises a ground brush and a dirt suction system, the front portion of the ground brush is provided with a cleaning assembly, a cover body located above the cleaning assembly, and a dirt suction opening facing the cleaning assembly and communicated with the dirt suction system. The base comprises a tray used for containing the main machine, a cleaning groove used for containing the cleaning assembly is formed in the tray, a wind scooper is further arranged at the front end of the tray, the wind scooper extends from the front end of the tray to a floor brush placed in the tray and abuts against the cover body, air inlet openings are formed in the left side and the right side of the wind scooper, and a distance is formed between the wind scooper and the front end of the cleaning assembly. And the space forms an air gathering area under the suction action of the dirt suction system, so that air entering from the air inlet opening is gathered at the front end of the cleaning assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning appliances, and specifically provides a surface cleaning system. Background Art

[0002] As people's living standards improve, surface cleaning devices gradually enter people's daily lives. The surface cleaning device includes a cleaning component and a base for cleaning the cleaning component. The surface cleaning device is placed on the base, the cleaning component is located in the cleaning tank, and the rotating cleaning component can complete self-cleaning.

[0003] In some technical solutions, in order to prevent the dirt on the surface of the cleaning component from being thrown out of the surface cleaning device and the base during the self-cleaning process, it is generally necessary to set a shielding member at the front of the base, which blocks the gap between the roller brush cover of the floor brush and the front end of the base. For example, Chinese patent CN202122419366.0 discloses a floor scrubber, which, when the roller brush is self-cleaning, the sewage thrown out radially by the rotation of the roller brush splashes in the front-to-back direction, and there is no gap between the front end of the base and the front end of the shell in the upper and lower directions, and there is no gap between the rear end of the base and the rear end of the shell in the upper and lower directions, so the sewage splashing in the front-to-back direction will be blocked, that is, the sewage on both sides of the front and rear of the roller brush axis is blocked, so that the sewage is always in the cleaning chamber, thereby preventing the sewage from being thrown out of the cleaning chamber and splashing to the outside world or other positions of the base to avoid pollution.

[0004] In the above technical solution, since the shielding member blocks the gap between the roller brush cover and the front end of the base in the floor brush, and the shielding member cooperates with the base to roughly separate the cleaning component from the external environment, the gap between the cleaning component and the shielding member is roughly closed; especially when the shielding member is close to the cleaning component, the gap is more closed. Although this setting method can prevent dirt from being thrown out of the base, it will put the cleaning component in a humid and roughly closed space, which is not conducive to the natural air drying of the cleaning component, and thus the drying cycle of the cleaning component is longer, which is easy to produce odor.

[0005] In addition, as disclosed in Chinese patent CN202210409654.4, a cleaning machine drying system includes a tray for carrying the cleaning machine head, the tray includes a bearing surface, a positioning groove for positioning the walking wheel of the cleaning machine, a cleaning groove, and a surrounding wall around the bearing surface and a drying component, wherein the drying component includes an air inlet component, a hot air channel with a drying heater, and a hot air outlet connected to the hot air channel, a wind gap is formed between the roller brush and the cleaning groove, the hot air outlet is arranged on the front surrounding wall and faces the wind gap, the suction nozzle of the cleaning machine is connected to the wind gap, and the hot air discharged from the hot air outlet passes through the wind gap and is blocked by the bottom scraper of the cleaning machine head, and flows to the inside of the roller brush and the suction nozzle. Although this technical solution adds a hot air heater, due to the gap between the floor brush and the surrounding wall, heat will be lost from the gap. If the gap is too large, the low-temperature airflow from the outside is greater than the amount of hot air blown out by the drying heater, which will aggravate the decrease in airflow temperature, so that the drying efficiency still needs to be improved. Utility Model Content

[0006] The utility model aims to provide a surface cleaning system, which can improve the drying efficiency of a cleaning component by introducing external natural wind into the space in front of the cleaning component.

[0007] In order to achieve the above-mentioned purpose, one or more embodiments of the utility model provide a surface cleaning system, including a base and a cleaning main unit, the cleaning main unit including a floor brush and a sewage suction system, a cleaning component is provided in front of the floor brush, a cover body is located above the cleaning component, and a sewage suction port is directed toward the cleaning component and connected to the sewage suction system, the base includes a tray for placing the main unit, the tray is provided with a cleaning groove for accommodating the cleaning component, and an air guide cover is also provided at the front end of the tray, the air guide cover extends from the front end of the tray to the floor brush placed in the tray and abuts against the cover body, the air guide cover has air inlet openings on the left and right sides, and there is a distance between the air guide cover and the front end of the cleaning component, and the distance forms a wind gathering area under the suction action of the sewage suction system, so that the wind entering from the air inlet opening gathers at the front end of the cleaning component.

[0008] In at least one embodiment, the cleaning tank is arranged at the front of the tray, and the front end of the tray is also provided with an upwardly convex front edge, which extends toward the cover of the cleaning component in the tray to participate in forming the wind gathering area.

[0009] In at least one embodiment, the front edge extends toward the cover body and abuts against the front end of the cover body, and the front edge is the air guide cover;

[0010] In at least one embodiment, the air guide cover is an arc-shaped cover arranged on the front edge, and the arc-shaped cover abuts against the front end of the cover body.

[0011] In at least one embodiment, the front end of the air guide cover is fixed to the front end of the tray and also includes an elastic part, and the air guide cover is flexibly abutted against the front end of the cover body through the elastic part; or, the front end of the air guide cover is at least made of elastic material, so that the rear end of the air guide cover is flexibly abutted against the front end of the cover body.

[0012] In at least one embodiment, the cleaning assembly includes a roller and a cleaning cloth sleeved on the roller, and the distance between the air guide cover and the cleaning cloth ranges from 13 mm to 16 mm.

[0013] In at least one embodiment, a driving component for driving the cleaning component to move forward and backward is provided in the floor brush, and the distance that the cleaning component moves forward and backward is 3 mm-6 mm.

[0014] In at least one embodiment, a ventilation gap is provided between the bottom wall of the cleaning tank and the cleaning assembly, and the ventilation gap connects the sewage suction port and the wind gathering area to form an air suction path along the air inlet opening, the wind gathering area, the ventilation gap and the sewage suction port.

[0015] In at least one embodiment, an air outlet facing the cleaning component is provided at the front end of the tray, the air guide cover is located above the air outlet, and an air supply component is provided in the base, which blows the air in the tray toward the air outlet to dry and dehydrate the cleaning component.

[0016] In at least one embodiment, a heating element is further provided in the tray, and the heating element generates heat to generate hot air. The air supply component blows the hot air toward the air outlet, and the hot air is mixed with the cold air entering from the air inlet opening under the suction action of the sewage suction system in the wind gathering area, and enters the sewage suction port through the ventilation gap, so as to accelerate the drying and dehydration of the cleaning component.

[0017] Beneficial effects of one or more of the above technical solutions:

[0018] (1) The present solution further provides an air guide hood at the front end of the tray, the air guide hood extends from the front end of the tray to the floor brush placed in the tray and abuts against the cover body, the air guide hood has air inlet openings on the left and right sides, the air guide hood and the front end of the cleaning component are spaced apart and form a wind gathering area, so that the wind entering from the air inlet openings gathers at the front end of the cleaning component. This can not only utilize the air guide hood to prevent the dirt of the cleaning component from being thrown out of the base, but also allow the external airflow to participate in the automatic cleaning dirt suction process and the air drying process of the cleaning component after automatic cleaning, and can prevent the air guide hood from forming a roughly enclosed space outside the cleaning component, thereby preventing the space between the cleaning component and the air guide hood from forming a roughly enclosed space, causing the humid airflow to circulate self-circulating, resulting in a slower dissipation of moisture. Specifically, air inlet openings are arranged on both sides of the air guide hood, so that the external air flow enters the space between the cleaning component and the air guide hood, and a wider distance is provided between the front end of the cleaning component and the air guide hood of the base, so that a wider wind gathering area can be formed; when the sewage suction fan of the sewage suction system sucks air from the sewage suction port, the air flow in the wind gathering area is sucked into the sewage suction port, and the air pressure in the wind gathering area will be lower than the external atmospheric pressure, and the air inlet opening is small, and the space of the wind gathering area is large, the air flow outside the air guide hood forms a siphon mode with the air inlet opening and the wind gathering area, so that the external natural wind is sucked in the sewage suction port Under the action of the fan, a siphon effect will occur from the air inlet opening into the wind gathering area, and the air supply in the wind gathering area can be greatly increased. The wind gathering area becomes an area connected to the outside world, which is convenient for using the sewage suction system and the air inlet opening to form a directional airflow for air drying. The outside airflow continuously enters the wind gathering area, and the outside airflow continuously enters to dry the cleaning components, taking away the moisture on the cleaning components, improving the drying efficiency of the cleaning components, and avoiding the problem of odor caused by the slow loss of moisture on the cleaning components due to the formation of a closed space between the base and the cleaning components.

[0019] In addition, when the cleaning component rotates, the dirty liquid that is scraped off by the scraper and thrown out of the cleaning component will be blocked by the base, cover and wind guide cover, and will not be thrown out of the base or the floor brush; some of the dirt that moves to the air inlet opening will also be blown back to the wind gathering area due to the natural wind blowing inward at the air inlet opening, and then recovered from the suction port by the dirt suction system. That is, this solution opens the air inlet opening at the wind guide cover to increase the air intake while preventing dirt from being thrown out of the air inlet opening.

[0020] Secondly, since the existence of the air inlet opening increases the air volume in the wind gathering area, during the air drying process of the cleaning component, especially when the airflow enters the sewage suction port which is smaller than the air inlet opening from the relatively wide-spaced air gathering area, the strength of the airflow is further increased. Therefore, the strength and speed of the airflow to carry away the moisture on the hair tufts of the cleaning component between the air inlet opening and the sewage suction port are further improved. With the movement of the cleaning component and the operation of the sewage suction fan, the cleaning component can be continuously blown by the high-flow airflow here and the moisture on it can be quickly carried away, thus greatly shortening the time of the drying step and further improving the drying efficiency of the cleaning component after self-cleaning.

[0021] (2) In this solution, the front end of the tray is provided with a front edge, which extends toward the cover of the cleaning component in the tray, thereby participating in the formation of an air gathering area. In this arrangement, the front edge of the base participates in the formation of the air gathering area, which can prevent the cleaning component from being thrown out of the base from the front when it rotates; in addition, the front edge can cooperate with the above-mentioned air guide cover to block the front end of the air gathering area, thereby preventing the forced air discharged from the air inlet opening and the air outlet on the base from leaking in the front side of the air gathering area, thereby increasing the air volume in the air gathering area.

[0022] (3) In this solution, the front edge extends toward the cover of the cleaning assembly and abuts against the front end of the cover, and the front edge is the air guide cover; this arrangement facilitates the use of the front edge on the tray as an air guide cover, thereby achieving front side blocking of the wind gathering area. This facilitates avoiding the problem of air leakage at the gap between the air guide cover and the front edge due to the additional air guide cover, and facilitates reducing the process of additionally manufacturing the air guide cover.

[0023] (4) In this solution, the air guide hood is separately arranged from the front edge of the tray. The air guide hood is an arc-shaped hood arranged on the front edge, and the arc-shaped hood abuts against the front end of the cover. This arrangement facilitates the disassembly and assembly of the air guide hood and the tray at the base, and further facilitates timely disassembly and cleaning of the air guide hood when the inner wall surface is dirty. In addition, the arc-shaped structure of the air guide hood facilitates the cooperation with the outer arc surface on the front side of the cleaning component, so that part of the space in the wind gathering area is an arc-shaped space, which facilitates the partial spacing thickness of the arc-shaped space in the wind gathering area to remain unchanged, thereby improving the uniformity of airflow distribution, improving the utilization rate of dry airflow, and avoiding the phenomenon of airflow congestion at the corners of the air guide hood, which wastes energy.

[0024] (5) In this solution, the air guide hood is flexibly abutted against the front end of the cover body through an elastic part; or, the front end of the air guide hood is at least made of elastic material, so that the rear end of the air guide hood is flexibly abutted against the front end of the cover body. This arrangement can avoid the noise generated when the air guide hood is in hard contact with the front end of the cover body, and can also avoid position interference between the air guide hood and the cover body through deformation of the elastic part, and avoid the air guide hood or the cover body from being misaligned due to collision and compression.

[0025] (6) In this solution, the cleaning component includes a roller and a cleaning cloth sleeved on the outside of the roller, and the distance between the air guide cover and the cleaning cloth is 13mm-16mm; this arrangement makes it easy for the wind gathering area to have a sufficient width in the front and rear directions of the base, which is beneficial to ensure that the air inlet opening is not too small, so as to ensure the amount of air accumulated in the wind gathering area and improve the drying effect of the external airflow on the cleaning component. When the distance between the air guide cover and the cleaning cloth is less than 13mm, the distance is short. Although the wind can reach the outer surface of the cleaning component more quickly, due to the insufficient amount of air entering the wind gathering area from the air inlet opening, a small amount of wind can only Blowing dry the surface of the hair tufts of the cleaning component cannot reach the roots of the hair tufts of the cleaning component and dehydrate them, and the drying time cannot be shortened quickly; when the distance between the air guide cover and the cleaning cloth is greater than 16 mm, although the air volume entering the wind gathering area is increased, the wind farther away from the cleaning component will be drawn into the top of the air guide cover and then turned back before it can contact the outer surface of the cleaning component. This is also a waste, especially when a hot air device is used on the base. The amount of air entering from the outside is greater than the amount of hot air generated by the hot air device, which will quickly lower the temperature of the hot air, thereby reducing the speed at which the cleaning component and its hair tufts are dried.

[0026] (7) The structural setting of the cleaning component in this solution that can move forward and backward increases the space at the suction port, which is convenient for improving the suction effect during cleaning or self-cleaning, especially when the cleaning component is used in both directions. While ensuring the self-cleaning effect or cleaning effect, it is also convenient to ensure that the wind gathering area has sufficient width, and also ensure further suction effect and air drying effect.

[0027] (8) In this solution, there is a ventilation gap between the bottom wall of the cleaning tank and the cleaning component, and a suction path can be formed along the air inlet opening, the wind gathering area, the ventilation gap and the sewage suction port. This arrangement enables the sewage suction system to suck air from the air inlet opening through the formation of the sewage suction path, and is conducive to improving the path of the natural wind from the outside along the movement of the floor brush, which is conducive to achieving the drying of the cleaning component, the floor brush bottom shell and base, the sewage suction port and other components.

[0028] (9) In this solution, an air outlet facing the wind gathering area is provided at the front end of the tray, and an air supply assembly is provided in the base, which is connected to the air outlet. In this arrangement, the airflow in the wind gathering area is composed of two parts: natural wind from the outside and forced air supply output by the air supply assembly through the air outlet. This is conducive to increasing the amount of air supplied to the wind gathering area, thereby improving the air drying efficiency of the cleaning assembly without increasing the fan speed or the volume of the fan. In this solution, when an air guide hood is used to block the gap between the front end of the base and the front end of the floor brush, the air supply assembly is used in combination to further air dry the cleaning assembly. Compared with the prior art that only uses a hot air assembly and an air outlet, the air guide hood in this embodiment can prevent dry wind from escaping from the gap, thereby improving the effect of air drying the cleaning assembly.

[0029] (10) In this solution, a heating element is provided inside the tray, and the heating element generates heat to generate hot air. The air supply component blows the hot air toward the air outlet, and the hot air is mixed with the cold air entering from the air inlet opening under the suction action of the sewage suction system in the wind gathering area, and enters the sewage suction port through the ventilation gap, so as to accelerate the drying and dehydration of the cleaning component. This arrangement can facilitate the use of the hot air component to provide a relatively high temperature hot air flow, and then the hot air flow is mixed with the external natural wind in the wind gathering area, thereby increasing the temperature of the external natural wind. That is, the wind gathering area has the effect of mixing the hot air flow and the external natural wind, which is convenient for drying the entire cleaning component using airflow with uniform temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Some embodiments of the present application are described below with reference to the accompanying drawings, in which:

[0031] Figure 1 It is an axonometric diagram of the overall structure in Embodiment 1 of the present utility model;

[0032] Figure 2 yes Figure 1 The enlarged schematic diagram of the structure of part E in the middle;

[0033] Figure 3 It is a partial cross-sectional view of the overall structure in another viewing direction in Example 1 of the utility model;

[0034] Figure 4 yes Figure 3 A schematic diagram of the structure of part A in the middle;

[0035] Figure 5 It is a longitudinal cross-sectional view of the floor brush and the base in Embodiment 1 of the utility model;

[0036] Figure 6 yes Figure 5 A schematic diagram of the structure of part B in the middle;

[0037] Figure 7 It is an axonometric diagram of the base in Embodiment 2 of the present utility model;

[0038] Figure 8 It is a partial cross-sectional view of the overall structure in Example 2 of the utility model;

[0039] Fig. 9 yes Figure 8 A schematic diagram of the structure enlargement of the middle C part;

[0040] Fig.10 It is a longitudinal cross-sectional view of the structure of the floor brush and the base part in Embodiment 3 of the present utility model;

[0041] Fig.11 yes Fig.10 Schematic diagram of the enlarged structure of part D.

[0042] Figure numerals: 1. handle; 2. handle bar; 3. body; 4. sewage bucket; 5. floor brush; 51. cover; 52. cleaning assembly; 6. base; 61. tray; 611. front edge; 7. clean water tank; 8. air guide cover; 801. elastic part; 9. air inlet opening; 10. ventilation gap; 11. sewage suction port; 12. air outlet; 13. cleaning trough; 14. wind gathering area. DETAILED DESCRIPTION

[0043] Those skilled in the art should understand that the embodiments described below are merely preferred embodiments of the present application, which are merely used to explain the technical principles of the present application and are not used to limit the protection scope of the present application.

[0044] It should be noted that in the description of this application, the terms "center", "upper", "lower", "top", "bottom", "vertical", "horizontal", "inner", "outer" and other terms indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on this application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0045] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] Example 1

[0047] like Figure 1-Figure 6As shown, the present embodiment provides a surface cleaning system, comprising a base 6 and a cleaning main unit, the cleaning main unit comprising a floor brush 5 and a dirt suction system, a cleaning component 52 is arranged at the front of the floor brush 5, a cover body 51 located above the cleaning component 52 and a dirt suction port 11 facing the cleaning component 52 and connected to the dirt suction system, the base 6 comprises a tray 61 for placing the main unit, the tray 61 is provided with a cleaning tank 13 for accommodating the cleaning component 52, an air guide hood 8 is further provided at the front end of the tray 61, the air guide hood 8 extends from the front end of the tray 61 to the floor brush 5 placed in the tray 61 and abuts against the cover body 51, the air guide hood 8 has air inlet openings 9 on the left and right sides, the air guide hood 8 and the front end of the cleaning component 52 have a distance, the distance here forms a wind gathering area 14 under the action of the dirt suction system, under the action of the air guide hood, the wind entering from the air inlet opening 9 is gathered at the front end of the cleaning component 52 and guided to the cleaning component, so that the cleaning component and the hair tufts thereon are dehydrated and dried.

[0048] Specifically, the cleaning host here is a floor scrubber, which includes a water supply system, a sewage suction system, a body 3 and a floor brush 5. The lower part of the body 3 and the rear part of the floor brush 5 are pivotally connected, and the upper end of the body 3 is connected to the handle 1 through the handle rod 2. A sewage bucket 4 and a clean water tank 7 are respectively arranged at the front and rear of the body 3.

[0049] The cleaning assembly 52 is generally a roller brush or a crawler type cleaning roller assembly, which has a cleaning cloth sleeved on the outside of a single roller body or two roller bodies. In this embodiment, the cleaning assembly is a single roller body sleeved with a cleaning cloth, and the outer surface of the cleaning cloth has tufts. The cleaning host has a water supply system, which provides clean water to the cleaning assembly 52 to wet the cleaning cloth, so that the cleaning cloth can scrub the floor. After long-term use, the tufts and the entire cleaning cloth will appear dirty and need to be placed on the base 6 for self-cleaning.

[0050] The floor brush is provided with a scraper bar, a water spray port and a sewage suction port. When the cleaning host is performing self-cleaning, the cleaning host is placed on a tray of the base, the floor brush is located on the tray, and the auxiliary wheels of the floor brush are arranged in the limiting grooves on the tray so that the cleaning component is located above the cleaning groove, and the water spray port sprays water to the cleaning component. The cleaning component rotates under the action of the driving motor, and the scraper bar continuously scrapes the cleaning component, thereby scraping off the dirt or dirty liquid on the cleaning component. The sewage suction system generally includes a vacuum pump component (such as a fan or an air pump) and a sewage suction pipeline. The sewage bucket 4 is connected to the sewage suction port 11 through the sewage suction pipeline, and the sewage suction port 11 is directly opposite to the cleaning component 52. The vacuum pump component draws air from the sewage bucket 4 to generate negative pressure in the sewage bucket, so that the dirty liquid or dirt on the surface to be cleaned or the dirt or dirty liquid scraped from the cleaning component 52 by the scraper bar is sucked into the sewage bucket 4 through the sewage suction port and the sewage suction pipeline, and the cleaning component is dehydrated and air-dried at the same time. The above process is repeated until the self-cleaning process of the cleaning host is completed.

[0051] In this embodiment, the base 6 includes a tray 61 that is roughly flat, and a support base is installed at the rear of the tray 61. The support base is used to support the boss on the rear side of the body 3 in the cleaning host and to charge the body 3.

[0052] In this embodiment, a cover 51 is detachably mounted on the front of the floor brush 5, and the cover 51 is located above the cleaning assembly 52 to prevent the cleaning assembly 52 from throwing dirt upwards toward the user or the surrounding area where the cleaning work has been completed during the cleaning process. In order to prevent the cover 51 from affecting the cleaning of the cleaning assembly 52, the vertical projection of the cover 51 generally does not exceed the cleaning assembly 52 forward, that is, the cleaning assembly 52 protrudes forward from the cover 51 in the front-to-back direction. When the floor brush 5 is placed on the tray 61 for self-cleaning, there will be a gap between the cover 51 and the front end of the cleaning tank 13, which can easily cause dirt to be thrown out, thereby contaminating the base and the surface outside the floor brush that has been cleaned.

[0053] In this embodiment, the above-mentioned air guide cover 8 is provided, and the air guide cover 8 extends from the front end of the tray 61 to the floor brush 5 placed in the tray 61 and abuts against the cover body 51. Specifically, the extension trajectory of the air guide cover 8 can be an arc trajectory, a straight line trajectory or a multi-segment line trajectory, as long as the air guide cover 8 can be used to block the gap between the front end of the tray 61 and the above-mentioned cover body 51. This arrangement makes the air guide cover 8 and the front end of the cleaning component 52 have a spacing and enclose a wind gathering area 14. In order to avoid the air guide cover 8 from forming a closed area at the front end of the cleaning component 52, so as to avoid the cleaning component 52 being in a roughly closed humid environment for a long time, the present embodiment also provides a corresponding air inlet opening 9 at the air guide cover 8, and the air inlet opening 9 can introduce the external natural wind from the left and right sides of the air guide cover 8. The air inlet openings 9 on both sides of the air guide cover 8 can be symmetrically arranged about the base 6, so that the air is evenly inlet to both sides of the air guide cover 8. In some other embodiments, the air inlet openings 9 on both sides of the air guide cover 8 can also adopt a non-uniform air inlet method. The air inlet opening 9 here can be a square hole, a circular hole, etc. opened on the air guide cover 8. The air inlet opening 9 can also be a gap on the left and right sides of the air guide cover 8. When the air guide cover 8 is arranged on the front side of the floor brush 5 to enclose and form the wind gathering area 14, the existence of the gaps on both sides of the air guide cover 8 causes the air guide cover 8 to not be completely connected with the remaining structures, and thus will not block the left and right sides of the wind gathering area 14; that is, the air inlet opening 9 at this time is formed by the gaps on the air guide cover 8 and other joints on the tray 61.

[0054] During the self-cleaning process: when the sewage suction system sucks air from the sewage suction port 11, the air pressure in the wind gathering area 14 will be lower than the outside atmospheric pressure, and the natural wind from the outside will enter the wind gathering area 14 from the air inlet opening 9. This is conducive to increasing the air volume supplied by the wind gathering area 14, thereby improving the air drying efficiency of the cleaning component 52. The air inlet opening 9 has natural wind blowing inward, and part of the dirt moving to the air inlet opening 9 will be blown back to the wind gathering area 14. That is, this solution opens the air inlet opening 9 at the wind guide cover 8 to increase the air intake volume, while preventing the dirt from being thrown out from the air inlet opening 9. In addition, since the existence of the air inlet opening 9 increases the air volume in the wind gathering area 14, during the air drying process of the cleaning component 52, especially when the airflow enters the sewage suction port 11 which is smaller than the air inlet opening 9 from the widely spaced wind gathering area 14, the flow rate and intensity of the airflow are further increased. Therefore, the strength and speed of the airflow to carry away the moisture on the hair tufts of the cleaning component 52 located between the air inlet opening 9 and the sewage suction port 11 are further improved. With the movement of the cleaning component 52 and the operation of the sewage suction fan, the cleaning component 52 can be continuously blown by the high-flow airflow here and the moisture on it can be quickly carried away.

[0055] Figure 6 The figure shows the gas flow in the cleaning tank when the suction system sucks and forms a negative pressure at the suction port. Figure 6 It can be seen that the outside air flows into the wind gathering area 14 from the left and right ends of the wind guide cover under the action of negative pressure, and then flows downward from the wind gathering area along the outer side of the cleaning component to the gap between the cleaning component and the bottom wall of the cleaning tank, and finally flows into the sewage suction port 11.

[0056] In this embodiment, the cleaning tank 13 is arranged at the front of the tray 61. The front end of the tray 61 is also provided with an upwardly protruding front edge 62, which extends toward the cover body 51 of the cleaning component 52 in the tray 61 to participate in forming the wind gathering area 14.

[0057] Specifically, the cleaning tank 13 here is generally set as a square tank to adapt to the structural feature that the vertical projection of the floor brush 5 is roughly square. The cleaning tank 13 is arranged at the front of the tray 61, which can correspond to the structural feature that the cleaning component 52 is arranged at the front of the floor brush 5. The front edge 62 at the front end of the tray 61 protrudes upward from the cleaning tank 13, thereby defining the front boundary of the cleaning tank 13; specifically, the inner side of the front edge 62 facing the cleaning tank 13 can be a curved surface to achieve a smooth transition between the front edge 62 and the bottom surface of the cleaning tank 13. Correspondingly, the left and right edges for defining the left and right boundaries of the cleaning tank 13 are also provided at the left and right ends of the tray 61. The left and right edges are symmetrically arranged, and the left edge, the front edge 62 and the right edge are connected in sequence to form a U-shaped structure. In the case of adopting a U-shaped structure edge, the boundary of the cleaning tank 13 can be defined and the probability of dirt at the cleaning component 52 being thrown out from the front side and the left and right sides of itself can be reduced.

[0058] In this embodiment, the front edge 62 is located at the front end of the tray 61, and the upwardly protruding structure of the front edge 62 enables it to extend toward the cover 51 of the cleaning component 52, and then cooperate with the wind guide cover 8 to enclose the above-mentioned wind gathering area 14.

[0059] In some embodiments, the front edge 62 extends toward the cover of the cleaning assembly and abuts against the front end of the cover, and the front edge 62 is an air guide. In this case, the front edge on the tray is used as an air guide to seal the front gap of the air gathering area 14, so as to avoid the problem of air leakage in the gap between the air guide and the front edge due to the additional air guide.

[0060] In this embodiment, the air guide cover 8 and the front side 62 of the tray 61 are independent structures. The air guide cover is an arc-shaped cover provided on the front side, and the arc-shaped cover abuts against the front end of the cover. Specifically, the front side 62 and the air guide cover 8 can be plugged in through the plug-in protrusion and the slot; the air guide cover 8 can also be fixed to the front side 62 by means of a snap connection or the like.

[0061] In this embodiment, the air guide cover 8 also includes an elastic part 801, and the air guide cover 8 flexibly abuts against the front end of the cover body 51 through the elastic part 801. Specifically, one end of the air guide cover 8 is connected to the front edge 62 to form a connection end, and the other end extends toward the cover body 51 to form a free end, and the elastic part 801 is located at the free end position. More specifically, the elastic part 801 is a square elastic rubber strip, which has a contact surface for abutting against the front end surface of the cover body 51. The existence of the elastic part 801 can avoid the noise generated when the air guide cover 8 is in hard contact with the front end of the cover body 51. In addition, the deformation of the elastic part 801 can avoid the position interference between the air guide cover 8 and the cover body 51, and avoid the air guide cover 8 or the cover body 51 from being misaligned due to mutual collision and extrusion. In addition, when the elastic part is used, the movement of the following part of the cleaning component 52 in the front-to-back direction will cause the elastic part 801 to be elastically deformed, and then the front-to-back movement of the cleaning component 52 will not affect the abutment between the cover body 51 and the air guide cover 8.

[0062] The cleaning component 52 includes a roller and a cleaning cloth sleeved on the roller. The spacing between the air guide cover 8 and the cleaning cloth ranges from 13mm to 16mm. The spacing in this embodiment is 16mm, so that a larger spacing is formed between the cleaning cloth and the front end of the air guide cover to form a wider wind gathering area. Under the action of the sewage suction fan, a siphon effect is generated to ensure that more natural wind from the outside is gathered in the wider wind gathering area through the air inlet opening, so that after the continuously rotating cleaning component enters the wind gathering area, it has a larger contact area with the wind in the wind gathering area, thereby quickly drying the cleaning component and the hair tufts thereon in the wind gathering area, and at the same time leaving space for the cleaning component to move back and forth, thereby better ensuring that the cleaning component is dried.

[0063] Specifically, a mounting cavity is provided at the front of the floor brush 5, and a roller is rotatably installed in the mounting cavity. The number of rollers is single, and the cleaning cloth is tightly sleeved on the outside of the single roller. In some other embodiments, multiple rollers are arranged side by side, and a cleaning cloth is sleeved on the outside of the roller to form a crawler-type cleaning assembly 52. ​​The spacing range between the air guide hood 8 and the cleaning cloth is 14 mm. Due to the crawler-type cleaning assembly, the outer surface of the cleaning cloth is larger, so it is necessary to reasonably arrange the paths of the wind gathering area and the cleaning assembly so that the wind gathering area 14 has a sufficient width in the front-to-back direction of the base 6, which is conducive to ensuring that the air inlet opening 9 is not too small, so as to ensure the amount of air accumulated in the wind gathering area 14 and improve the drying effect of the external airflow on the cleaning assembly 52.

[0064] More specifically, the distance between the air guide cover 8 and the cleaning cloth may be 13 mm, 15 mm or 16 mm, etc., which can be set by those skilled in the art.

[0065] In this embodiment, a driving assembly for driving the cleaning assembly 52 to move forward and backward is provided in the floor brush 5, and the distance that the cleaning assembly 52 moves forward and backward is 3mm-6mm. This can increase the space at the suction port 11, which is convenient for improving the suction effect during cleaning or self-cleaning, especially when the cleaning assembly 52 rotates forward and backward. The cleaning effect is better. While ensuring the self-cleaning effect or the cleaning effect, it is also convenient to ensure that the wind gathering area 14 has sufficient width, and further suction effect and air drying effect are also ensured. Specifically, the distance that the cleaning assembly 52 moves forward and backward can be 3mm, 5mm or 6mm, etc., which can be set by those skilled in the art.

[0066] Specifically, the driving assembly here can be an electric push rod, and the cleaning assembly 52 has a mounting bracket, which is used to carry the remaining components in the cleaning assembly 52, and the mounting bracket is slidably connected to the housing of the floor brush 5, and the sliding direction of the two is the front-back direction of the floor brush 5. The driving end of the electric push rod is connected to the mounting bracket, and the housing end of the electric push rod is fixed to the housing of the floor brush 5. In some other embodiments, the driving assembly can be a pneumatic push rod or a gear rack structure, etc., which can be set by those skilled in the art.

[0067] In this embodiment, there is a ventilation gap 10 between the bottom wall of the cleaning tank and the cleaning component 52, and the ventilation gap 10 connects the sewage suction port 11 and the wind gathering area 14 to form an air suction path along the air inlet opening 9, the wind gathering area 14, the ventilation gap 10 and the sewage suction port 11. This arrangement enables the cleaning component to be located on the air suction path. When the cleaning component rotates, part of the hair tufts entering the wind gathering area are continuously blown by the larger air volume sucked into the wind gathering area from the air inlet opening 9 and gathered, thereby taking away the moisture on most of the hair tufts of the cleaning component entering the wind gathering area. The wind continues to be sucked forward through the ventilation gap. Since most of the outer surface of the cleaning component is located in the ventilation gap, the moisture on the hair tufts of the cleaning component continues to be taken away until it enters the sewage suction port and is sucked into the sewage holding bucket from the sewage suction port by the sewage suction fan. This structure allows the external natural wind to continuously participate in the self-cleaning process of the cleaning component, so that after the cleaning component is cleaned, it can be continuously dehydrated and dried as the sewage suction process proceeds. At the same time, the natural wind continuously sucked into the sewage suction port and the sewage suction pipeline is also dried, thereby shortening the drying time of the cleaning component and its hair tufts, and avoiding the problem of mold due to long-term moisture in the cleaning component, the sewage suction port and the sewage suction pipeline.

[0068] Example 2

[0069] like Figure 7-Figure 9 As shown, the structural setting of this embodiment is basically the same as that of embodiment 1, and the difference is that: an air outlet 12 facing the wind gathering area 14 is provided at the front end of the tray, and an air supply component is provided in the base, and the air supply component is connected with the air outlet, and the air guide cover is arranged above the air outlet, so as to guide the wind blown out of the air outlet to further guide the wind gathering area, and at the same time, the air guide cover also guides the wind entering from the air inlet opening to the wind gathering area, and the two gather in the wind gathering area and continuously blow toward the outer surface of the cleaning component entering the wind gathering area, so as to dehydrate and dry the cleaning component and the hair tufts thereon. In this embodiment, the distance between the air guide cover and the cleaning component is 15mm.

[0070] The air supply assembly in this embodiment cooperates with the above-mentioned air guide cover to extend from the front end of the base to the cover body of the floor brush and abut against it. The air guide cover can be used to completely guide the dry airflow discharged from the air outlet of the air supply assembly to the cleaning assembly without escaping from the gap between the cover body and the front end of the base.

[0071] Because the cleaning assembly 52 is disposed at the front of the floor brush 5 , the front of the tray 61 in this embodiment is provided with the above-mentioned cleaning tank 13 , and the air outlet 12 is used to discharge drying air to the cleaning tank 13 .

[0072] See also Fig. 9 , Fig. 9The arrows in the figure indicate the flow direction of the two airflows merging and drying the cleaning component in this embodiment. The air supply in the air gathering area 14 is the part of the external natural wind flowing in from the air inlet openings at both ends of the air guide cover and the forced air supply output by the air supply component through the air outlet 12. After the two airflows merge in the air gathering area, they flow along the outer side surface of the cleaning component close to the air gathering area, and finally flow into the sewage suction port from the ventilation gap 10.

[0073] The air supply component is a fan arranged in a tray of the base.

[0074] It should be pointed out that in the present embodiment, the cleaning component 52 is accommodated in the cleaning tank 13. Therefore, as long as the wind discharged from the air outlet 12 can enter the cleaning tank 13 and then contact the cleaning component 52, the position of the air outlet 12 is not limited. For example, the air outlet 12 can be arranged on the bottom surface, left and right sides or front side of the cleaning tank 13. The number of air outlets 12 can be one or more. When there are multiple air outlets 12, they can be arranged in a row along the front and back or left and right directions of the base 6. Alternatively, the air outlets 12 here can be arranged in multiple rows; the cross-sectional shape of the air outlet 12 can be square, circular or oval, and no further restrictions are made here. Under the action of the sewage suction fan, the wind blown out from the air outlet and the natural wind entering from the outside converge in the wind gathering area, so that the wind blown out from the air outlet is further accelerated and mixed with the natural wind and then quickly blown to the outer surface of the cleaning component entering the wind gathering area, and then further quickly flows through the ventilation gap, so that the cleaning components and their hair tufts entering the ventilation gap are quickly dehydrated and dried, and finally enter the sewage tank from the sewage suction port and the sewage suction pipe, and at the same time the sewage suction port and the sewage suction pipe are also dehydrated and dried.

[0075] Specifically, the air supply component is nested inside the base 6, and an air supply channel should be provided inside the base 6. The air supply component sucks external air through the air supply channel and forces it to be discharged from the air outlet 12 to the cleaning tank 13 to air dry the cleaning component 52.

[0076] Embodiment 3

[0077] like Figure 10-11 As shown, the structural arrangement of this embodiment is basically the same as that of embodiment 1, except that the structure of the air guide cover is different and the structure of the base is also different.

[0078] In this embodiment, the front edge of the base is provided with an air guide cover with an arc-shaped inner surface, the air guide cover is made of rubber material, the lower end of the air guide cover has a slot, the slot is installed on the front edge of the base, the upper end of the air guide cover extends backward from the front edge, and the extended end of the air guide cover is provided with a limiting step. The front end of the cover body of the floor brush is provided with a shielding piece to ensure that the dirty liquid or dirt is not thrown too far when the cleaning component is performing cleaning work, and the shielding piece overlaps the limiting step and conflicts with the limiting step. A heating element is also provided in the tray of the base, and the heating element generates heat to convert the airflow in the tray into hot air. The fan blows the hot air to the air outlet to form an air supply component to supply hot air to the air outlet 12. A hot air component connected to the air outlet 12 is provided in the tray 61, and the air outlet 12 is provided on the inner side of the front edge 62 facing the cleaning tank 13, and the air guide cover 8 is above the air outlet 12. The air outlet 12 is located on the inner side of the front edge 62 facing the cleaning tank 13, and the air guide 8 is located above the air outlet 12. The distance between the air guide and the cleaning component is 13 mm. This arrangement allows the hot air discharged from the air outlet 12 to directly enter the wind gathering area 14, reducing the distance between the airflow discharged from the air outlet 12 and the wind gathering area 14, avoiding the rapid loss of temperature of the air discharged from the air outlet 12 before reaching the cleaning component, ensuring that the air volume entering the wind gathering area through the air inlet opening is not greater than the air volume discharged from the air outlet 12, thereby accelerating the temperature of the air entering the wind gathering area from the air inlet opening, increasing the temperature of the wind entering the wind gathering area, ensuring the amount of air gathered in the wind gathering area, and realizing rapid air drying of the cleaning component.

[0079] In this embodiment, the hot air assembly includes a heating element and a fan disposed in the tray 61. The hot air generated by the hot air assembly is mixed with the cold air entering from the air inlet opening 9 under the suction action of the sewage suction system in the air gathering area 14, and enters the sewage suction port 11 through the ventilation gap 10. At this time, the hot air assembly provides a relatively high temperature hot air flow, which in turn causes the hot air flow to mix with the external natural wind in the air gathering area 14, thereby increasing the temperature of the external natural wind. That is, the air gathering area 14 has the effect of mixing the hot air flow and the external natural wind, making it easy to use the air flow with uniform temperature to dry the entire cleaning assembly 52.

[0080] See also Fig.11 , Fig.11 The arrows in the figure show the flow direction of the two airflows merging and drying the cleaning components. The air supply volume of the air gathering area 14 is the part of the natural wind flowing in from the air inlet openings at both ends of the air guide cover and the forced air supply output by the air supply component through the air outlet 12. After the two airflows merge in the air gathering area, they flow along the outer side of the air gathering area that is close to the cleaning component and finally flow into the suction port from the ventilation gap 10. The airflow flowing out of the air outlet 12 also forms an airflow passage inside the base.

[0081] Of course, it is understandable that the shielding sheet can also be made of elastic material, such as hard rubber, or a structure with a metal sheet embedded in rubber, etc., and the air guide cover can be made of the same material as the tray of the base and injection molded integrally with the base to ensure that it is in elastic contact with the steps of the air guide cover and is limited by the steps, and no noise is generated when the cleaning component rotates.

[0082] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments of the foregoing text, but it is easy for those skilled in the art to understand that the protection scope of the present application is not limited to the above preferred embodiments. Without departing from the technical principles of the present application, those skilled in the art may split and combine the technical solutions in the above preferred embodiments, and may also make equivalent changes or replacements to the relevant technical features, and any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present application will fall within the protection scope of the present application.

Claims

1. A surface cleaning system, comprising a base and a cleaning main unit, the cleaning main unit comprising a floor brush and a dirt suction system, the front of the floor brush being provided with a cleaning assembly, a cover body located above the cleaning assembly, and a dirt suction port facing the cleaning assembly and connected to the dirt suction system, the base comprising a tray for placing the main unit, the tray being provided with a cleaning tank for accommodating the cleaning assembly, characterized in that: An air guide hood is also provided at the front end of the tray, which extends from the front end of the tray to the floor brush placed in the tray and abuts against the cover body. The left and right sides of the air guide hood are provided with air inlet openings, and there is a distance between the air guide hood and the front end of the cleaning component. The distance forms a wind gathering area under the suction action of the suction system, so that the wind entering from the air inlet opening is gathered at the front end of the cleaning component.

2. The surface cleaning system according to claim 1, characterized in that The cleaning tank is arranged at the front of the tray, and the front end of the tray is also provided with an upwardly convex front edge, which extends toward the cover body of the cleaning component in the tray to participate in forming the wind gathering area.

3. The surface cleaning system according to claim 2, characterized in that The front surround extends toward the cover body and abuts against the front end of the cover body, and the front surround is the air guide cover.

4. The surface cleaning system according to claim 2, characterized in that The air guide cover is an arc-shaped cover arranged on the front side of the enclosure, and the arc-shaped cover abuts against the front end of the cover body.

5. The surface cleaning system according to claim 4, characterized in that It also includes an elastic part, the front end of the air guide cover is fixed to the front end of the tray, and the rear end of the air guide cover is flexibly abutted against the front end of the cover body through the elastic part; or, the rear end of the air guide cover is at least made of elastic material, so that the rear end of the air guide cover is flexibly abutted against the front end of the cover body.

6. The surface cleaning system of claim 1, wherein: The cleaning assembly comprises a roller and a cleaning cloth sleeved on the roller, and the distance between the air guide cover and the cleaning cloth ranges from 13 mm to 16 mm.

7. The surface cleaning system according to claim 6, characterized in that The floor brush is provided with a driving component for driving the cleaning component to move forward and backward, and the distance that the cleaning component moves forward and backward is 3mm-6mm.

8. A surface cleaning system according to any one of claims 1 to 7, characterized in that A ventilation gap is provided between the bottom wall of the cleaning tank and the cleaning assembly, and the ventilation gap is connected to the sewage suction port and the wind gathering area to form an air suction path along the air inlet opening, the wind gathering area, the ventilation gap and the sewage suction port.

9. The surface cleaning system according to claim 8, characterized in that The front end of the tray is provided with an air outlet facing the cleaning component, the air guide cover is located above the air outlet, and the base is provided with an air supply component, which blows the air in the tray toward the air outlet to dry and dehydrate the cleaning component.

10. The surface cleaning system of claim 9, wherein: The tray is also provided with a heating element, which generates hot air by heating. The air supply component blows the hot air toward the air outlet. The hot air is mixed with the cold air entering from the air inlet under the suction action of the sewage suction system in the wind gathering area, and enters the sewage suction port through the ventilation gap, so as to accelerate the drying and dehydration of the cleaning component.

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