Surface cleaning equipment

Abstract

The surface cleaning equipment comprises a surface cleaning device and a base, the surface cleaning device comprises a dirt suction system and a ground brush with a dirt suction opening, the dirt suction system comprises a dirt containing barrel and a dirt suction fan, a cleaning assembly is arranged on the ground brush, the surface cleaning device is placed on the base, and the dirt suction fan is arranged on the base. A ventilation gap is formed between the base and the outer surface of the cleaning assembly, the ventilation gap extends in the direction of the dirt suction opening and is communicated with the dirt suction opening to form an air suction path, the area of the cleaning assembly located in the air suction path is Sj, the surface area of the cleaning assembly is S, and Sj is larger than or equal to 0.5 S. Due to the fact that the area of the cleaning assembly located in the air suction path is large, the area of the cleaning assembly located in the air suction path is larger than or equal to Sj. Under the action of the dirt suction motor, the airflow flows through the air suction path to take away moisture on the hair clusters of the cleaning assembly on the air suction path, so that water vapor on the surface of the cleaning assembly is separated, the drying efficiency is improved, the drying effect is improved, meanwhile, more energy is saved, and the service life of the cleaning assembly is prolonged.

Description

Technical Field

[0001] The present application belongs to the technical field of cleaning equipment, and specifically provides a surface cleaning equipment. Background Art

[0002] With the improvement of people's living standards, various surface cleaning devices have gradually entered people's daily lives, providing great convenience for cleaning the surfaces of house floors or carpets waiting to be cleaned. The surface cleaning devices generally include cleaning components, on which long or short tufts of hair are arranged, and the cleaning components rotate, and the tufts of hair keep scrubbing the surface to be cleaned. However, after the surface cleaning device completes the cleaning of the surface of the floor or carpet waiting to be cleaned, the tufts of hair on the cleaning components will become dirty and need to be cleaned, and the cleaning of the dirty cleaning components brings great trouble to customers. In order to reduce the customers' trouble in cleaning the cleaning components and reduce the customers' labor for cleaning the cleaning components themselves, more and more surface cleaning devices will also be equipped with a base for cleaning the cleaning components. When the cleaning components need to be cleaned, the surface cleaning device is placed in the cleaning tank of the base, and the rotating cleaning components can complete the self-cleaning of the cleaning components. Although the existing surface cleaning devices can complete the self-cleaning of the cleaning components, the cleaning components are still wet after cleaning, and it takes a long time to wait for natural drying. If it is cloudy or rainy, it takes even longer to dry naturally, especially in the rainy south, which creates conditions for the attachment and breeding of bacteria, easily causing the hair tufts to mold and reducing the service life of the cleaning components of the surface cleaning device. In order to solve the above problems, adding a drying process for the cleaning components after the automatic cleaning work is completed has become another technical problem in the industry research.

[0003] The application number is ZL202110075768.5 and the name is "A method for drying a cleaning machine and a cleaning machine using the method". A method for drying a cleaning machine is disclosed. After the drying work is started, the fan blowing air into the cavity of the cleaning machine is controlled to work at a set speed, and the real-time speed of the fan and the humidity data in the cavity of the cleaning machine are obtained in real time, and then the current drying efficiency is calculated according to the humidity data; the current real-time speed of the fan is compared with the set speed, and the current drying efficiency is compared with the set drying efficiency. According to the comparison result, the heating power of the heating element or the speed of the fan is adjusted. This method relies on the speed regulation of the fan to solve the drying and dehydration problem of the cleaning components, but because the fan is arranged in the body, the wind circulation here is still the circulation of the wind in the body, without the participation of the wind outside the body, and the cavity space in the body is limited. The water evaporates by relying on the heating temperature, so that the cavity in the body forms an environment full of fog and humidity, which still leads to low drying efficiency and long drying time. Utility Model Content

[0004] In order to solve the above-mentioned problems in the prior art, the present application provides a surface cleaning device, including a surface cleaning device and a base. The two are used in combination to greatly increase the ventilation area of ​​the cleaning component during self-cleaning. Not only is the self-cleaning effect of the cleaning component good, but the cleaning component can also be quickly dried after cleaning.

[0005] In order to achieve the above technical purpose, the utility model provides a surface cleaning device, including a surface cleaning device and a base, the surface cleaning device includes a dirt suction system and a floor brush with a dirt suction port, the dirt suction system includes a dirt storage bucket and a dirt suction fan, a cleaning component is provided on the floor brush, the surface cleaning device is placed on the base, a ventilation gap is provided between the base and the outer surface of the cleaning component, the ventilation gap extends toward the dirt suction port and is connected with the dirt suction port to form a suction path, and the area of ​​the cleaning component located in the suction path is S j , the surface area of ​​the cleaning component is S, where S j ≥0.5S, under the action of the dirt suction motor, the airflow flows through the cleaning component located in the air suction path to separate the water vapor on the surface of the cleaning component.

[0006] Furthermore, a cleaning groove is provided on the upper surface of the base, the cleaning component is located in the cleaning groove, the bottom surface of the cleaning groove is arranged lower than the upper surface of the base, and there is a distance between the cleaning component and the cleaning groove, so that a ventilation gap is formed between the cleaning component and the upper surface of the base.

[0007] Furthermore, support members are arranged at both ends of the cleaning tank, and the upper surfaces of the support members are arranged higher than the bottom surface of the cleaning tank. The cleaning component contacts the upper surface of the support members to form a distance with the cleaning tank, so that a ventilation gap is formed between the cleaning component and the base.

[0008] Furthermore, the floor brush is also provided with a roller brush cover covering the top of the cleaning component, the front end of the roller brush cover and the front end of the base form a ventilation opening of the suction path, and the ventilation gap extends outward to communicate with the ventilation opening.

[0009] Furthermore, at least a portion of the cleaning component is exposed at the ventilation opening, and the central angle θ corresponding to the arc length of the surface of the cleaning component exposed at the ventilation opening is 75°≥θ≥45°.

[0010] Furthermore, the base also includes a surrounding edge located at the outer periphery of the cleaning tank, the upper end of the surrounding edge and the front end of the roller brush cover form a ventilation opening, and the surface of the surrounding edge and the cleaning component are spaced apart to form a front suction chamber located in the ventilation opening.

[0011] Furthermore, the surrounding edge is inclined upward and outward, so that the longitudinal section of the front air suction cavity is an inverted eight-shaped shape.

[0012] Furthermore, the ventilation opening, the front suction chamber, the ventilation gap, and the sewage suction port form a suction path for the sewage suction fan, so as to continuously suck the external wind into the sewage suction fan and take away the water vapor on the surface of the cleaning component located in the suction path.

[0013] Furthermore, the base is provided with a fan and an air supply hole arranged toward the cleaning component, so as to continuously blow the wind in the base toward the cleaning component to take away the water vapor on the cleaning component.

[0014] Furthermore, a heating device is provided on the base, and the fan rotates to blow hot air generated by the heating device toward the cleaning component through the air supply hole, taking away the water vapor on the cleaning component. At the same time, the water vapor absorbs the heat of the cleaning component and evaporates, so that the cleaning component is quickly dried.

[0015] The beneficial effects of adopting the above technical solution are:

[0016] 1. A ventilation gap is provided between the base and the outer surface of the cleaning component, the ventilation gap extends toward the suction port and is connected to the suction port to form a suction path, so that the hair tufts of the cleaning component are in a well-ventilated environment. The area of ​​the cleaning component located in the suction path is S. j , the surface area of ​​the cleaning component is S, where S j ≥0.5S, under the action of the sewage suction motor, the air flow flows through the cleaning component located in the suction path, and the moisture on the hair tufts on the cleaning component can be taken away by the air flow, so that the water vapor on the surface of the cleaning component is separated, and the ventilation gap extends toward the sewage suction port, so that the area of ​​the cleaning component located in the suction path is greater than or equal to half of the surface area of ​​the cleaning component or more, thereby increasing the ventilation area of ​​the cleaning component, enhancing the energy exchange between the ventilation gap between the base and the cleaning component and the outside world, and allowing more external airflow to continuously participate in the drying process of the hair tufts of the cleaning component, thereby increasing the amount of energy exchange and the frequency of energy exchange, thereby accelerating the speed at which the moisture on the hair tufts is taken away, shortening the drying time of the hair tufts of the cleaning component, and thus quickly achieving the drying of the cleaning component after cleaning.

[0017] 2. A cleaning groove is provided on the upper surface of the base, the cleaning component is located in the cleaning groove, the bottom surface of the cleaning groove is lower than the upper surface of the base, and there is a distance between the cleaning component and the cleaning groove, so that a ventilation gap is formed between the cleaning component and the upper surface of the base; or, support members are provided at both ends of the cleaning groove, the upper surface of the support member is higher than the bottom surface of the cleaning groove, the cleaning component is in contact with the upper surface of the support member to form a distance with the cleaning groove, so that a ventilation gap is formed between the cleaning component and the base; such a scheme allows the tufts of the cleaning component located within the distance to have sufficient ventilation space, ensuring that the airflow can flow smoothly through the ventilation gap and quickly take away the moisture on the tufts located on the suction path, facilitating the drying work when the suction fan is acting, thereby helping to improve the work efficiency of the drying step, reduce the duration of the drying step, and achieve good drying effect and higher efficiency.

[0018] 3. The floor brush is also provided with a roller brush cover covering the top of the cleaning component, and the front end of the roller brush cover and the front end of the base form a ventilation opening of the suction path, and the ventilation gap extends outward to communicate with the ventilation opening. The existence of the ventilation opening further expands the air drying area of ​​the cleaning component and further lengthens the suction path, especially providing a larger inlet for the external airflow to continuously enter the suction path, so that the amount of airflow entering is increased and the entry is more convenient. Due to the existence of the ventilation opening, when the airflow enters the suction path smaller than the ventilation opening, the strength of the airflow increases, thereby further improving the strength and speed of the airflow to carry away the moisture on the tufts of the cleaning component located in the suction path. With the movement of the cleaning component and the operation of the suction fan, the cleaning component can be continuously blown by the high-pressure airflow here and the moisture on it can be quickly taken away, so the time of the drying step is greatly shortened, thus cleverly utilizing the wind resources, avoiding the waste of resources, and further improving the drying efficiency of the cleaning component of the surface cleaning device after self-cleaning.

[0019] 4. By exposing at least part of the cleaning component to the ventilation opening, the central angle θ corresponding to the arc length of the surface of the cleaning component exposed to the ventilation opening is 75°≥θ≥45°, and the cleaning component can be continuously blown by the airflow at this place, which not only enables the cleaning component at the ventilation opening to exchange with the external airflow at the ventilation opening, but also, under the action of the suction fan, more external airflow enters the suction path through the ventilation opening. With the movement of the cleaning component and the operation of the suction fan, the cleaning component located in the suction path can be better blown by the airflow, which increases the frequency and amount of contact between moisture and airflow, thereby further accelerating the speed at which the airflow takes away moisture on the tufts of the cleaning component, resulting in a better drying effect and higher efficiency. At the same time, when the cleaning belt is automatically cleaned, the roller brush cover covers a reasonable area of ​​the cleaning belt, so that when the cleaning belt is self-cleaned, in addition to the dirty liquid scraped off by the scraper bar can directly fall into the sewage suction port, another part of the dirty liquid or cleaning liquid follows the rotation of the roller of the cleaning component and is thrown out under the action of centrifugal force. It can be blocked by the roller brush cover, the base and the surrounding edge and fall into the cleaning tank, and can be brought into the sewage suction port under the action of the sewage suction fan, and then sucked into the sewage tank.

[0020] When θ is less than 45°, the area of ​​the cleaning belt exposed to the ventilation opening is reduced, and the air flow exchange is insufficient, which is not conducive to the volatilization of moisture from the tufts on the cleaning belt. At the same time, the area of ​​the cleaning component covered by the roller brush cover is increased, and the dirt absorption effect is good. However, such a structure reduces the ventilation opening. Even if the wind pressure after entering the ventilation opening is enhanced, the air intake volume is reduced, which is not conducive to the circulation of air flow, thereby greatly reducing the air drying effect.

[0021] When θ is greater than 75°, the area of ​​the cleaning component exposed to the ventilation opening is increased, and the air flow exchange is sufficient. Although the drying effect is better and the drying time is reduced, such a structure makes the matching space between the roller brush cover and the base farther. As the cleaning component moves, the dirty liquid follows the cleaning component to the ventilation opening and is easily thrown out of the base under the centrifugal force of the roller, causing the ground near the base to be partially contaminated, and also resulting in a waste of water during automatic cleaning, which is not conducive to automatic cleaning, nor is it conducive to the suction of dirt after cleaning.

[0022] 5. The base also includes a surrounding edge located at the outer periphery of the cleaning tank. A ventilation opening is formed by connecting the upper end of the surrounding edge with the front end of the roller brush cover. The surface of the surrounding edge and the cleaning component are spaced apart to form a front suction chamber located in the ventilation opening, thereby further expanding the transition between the smaller suction path and the larger ventilation opening, ensuring that the airflow has an appropriate suction force in the front suction chamber, and then enters the ventilation gap to be further strengthened and increased. Since the cleaning component is also rotating, most of the water is thrown into the suction port through the ventilation gap, while also ensuring that in the limited space of the ventilation gap, the moisture on the surface of the tufts has enough time to contact the airflow, so that the moisture on the surface of the tufts is quickly taken away, thereby allowing the reasonable intervention of external airflow, smoother energy exchange, more targeted drying, better drying effect, higher efficiency, simple and easy to implement structure, energy-saving and convenient control.

[0023] 6. Since the surrounding edge is inclined upward and outward, the longitudinal section of the front suction chamber is in an inverted eight-shaped shape. Such a shape ensures that the airflow gradually increases from the ventilation opening to the front suction chamber, and ensures the area in which the cleaning components in the front suction chamber are in contact with and exchange with the airflow. At the same time, the airflow entering the ventilation gap runs smoothly, and no eddy current phenomenon will be generated due to poor airflow, which will cause the motor to be blocked and overheated. This is not only beneficial to the working performance of the sewage suction motor, but also ensures the working life of the sewage suction motor, and increases the intensity of the airflow entering the ventilation gap, thereby accelerating the removal of moisture from the cleaning components on the suction path, and quickly sucking the moisture into the sewage container, thereby quickly drying the cleaning components. Such a structure is simple and ingenious, which can ensure the drying effect while being more energy-efficient, making the drying step of the surface cleaning device more intelligent and automated.

[0024] 7. Due to the ventilation opening, the front suction chamber, the ventilation gap, and the sewage suction port, a suction path of the sewage suction fan is formed, so that external airflow such as wind is continuously sucked into the sewage suction path and enters the sewage suction port through the suction path and is then taken away by the sewage suction fan, and the water vapor on the surface of the cleaning component located in the suction path is taken away, so that the sewage suction path has a better energy exchange with the outside world. The cleaning component is not in a smaller and more closed space, but in a well-ventilated space, which can allow external airflow such as wind to fully blow to the tufts and roots of the cleaning component, so that the moisture on the tufts on the cleaning component is brought to the outside, which saves energy and has a good drying effect, and fully guarantees the working time of the drying device, thereby improving the drying efficiency.

[0025] 8. The base is provided with a fan and an air supply hole arranged toward the cleaning component. The fan is controlled to start and the air in the base is sent to the cleaning component located in the air suction path and enters the sewage suction port. In this way, the airflow in the base and the airflow on the sewage suction path are mixed, and the amount of ventilation airflow is further increased, thereby accelerating the removal of moisture on the outer surface of the cleaning component in the suction path. Under the action of the sewage suction fan, the moisture is quickly sucked into the sewage bucket or into the fuselage and discharged from the fuselage to the outside of the fuselage, thereby quickly drying the cleaning component and further improving the drying efficiency.

[0026] 9. The base is also provided with a heating device. The fan rotates to blow the hot air generated by the heating device toward the cleaning component through the air supply hole to take away the water vapor on the cleaning component. The moisture on the cleaning component absorbs the heat in the suction path and evaporates quickly. The hot air accelerates the evaporation rate of the moisture on the cleaning component in the suction path. Due to the action of the sewage suction fan, the airflow entering from the outside is mixed with the hot air, thereby also increasing its own temperature. The mixing of the two airflows further increases the air volume, so the moisture will be brought into the sewage bucket and the external environment more quickly, further accelerating the evaporation and discharge of moisture, thereby further quickly drying the cleaning component. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The first embodiment is that the surface cleaning device in the surface cleaning apparatus is placed on a base;

[0028] Figure 2 It is a schematic diagram of the cooperation between the floor brush and the base;

[0029] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0030] Figure 4 is a second embodiment of the surface cleaning device;

[0031] Figure 5 yes Figure 4 Schematic diagram of the coordination between the middle floor brush and the base

[0032] Figure 6 yes Figure 5 The enlarged view of point B in the middle;

[0033] Figure 7 is a third embodiment of the surface cleaning device;

[0034] Figure 8 yes Figure 7 Schematic diagram of the coordination between the middle floor brush and the base

[0035] Fig. 9 yes Figure 8 Enlarged view of point C in the middle;

[0036] Fig.10 is a fourth embodiment of the surface cleaning device;

[0037] Fig.11 yes Fig.10 Schematic diagram of the coordination between the middle floor brush and the base

[0038] Fig.12 yes Fig.11 The enlarged view of point D in the middle;

[0039] Fig.13 is a schematic diagram of an alternative embodiment of the base of the surface cleaning device and the cooperation with the floor brush;

[0040] Fig.14 is a schematic diagram of the surface cleaning device described in Example 5;

[0041] Fig.15 Schematic diagram of the surface cleaning device described in Example 5.

[0042] The names of the components in the figure are as follows: 10, surface cleaning device; 1, floor brush; 12, scraper strip; 13, sewage suction port; 131, front sewage suction port; 14, liquid spray port; 15, roller brush cover; 16, comb structure; 19, floor scraper; 2, cleaning assembly; 21, roller; 211, tuft; 212, first roller; 213, second roller; 214, support frame; 22, cleaning belt; 23, side plate; 32, sewage bucket; 41, clean water tank; 5, machine body; 51, walking wheel; 6 1. First airflow; 62. Second airflow; 63. Third airflow; 64. Fourth airflow; 7. Body; 71. Power source assembly; 80. Base; 801. Upper shell; 8011. Bottom; 802. Bottom shell; 803. Charging bracket; 8. Receiving part; 81. Cleaning tank; 82. Edge; 821. Air outlet; 822. Top; 83. Support member; 84. Base; 85. Heat collecting structure; 86. Support and limiting structure; 91. Fan; 92. Heating device. DETAILED DESCRIPTION

[0043] It should be understood by those skilled in the art that the embodiments described below are only part of the embodiments of the present application, rather than all of the embodiments of the present application, and the embodiments are intended to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should still fall within 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", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are merely for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" 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 "installed", "connected", and "connected" 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, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0046] As the surface cleaning device described in the utility model, Figures 1 to 15As shown, the surface cleaning equipment includes a surface cleaning device 10 and a base 80, the surface cleaning device 10 includes a dirt suction system and a floor brush 1 with a dirt suction port 13, the dirt suction system includes a dirt bucket 32 ​​and a dirt suction fan (not shown in the figure), the floor brush 1 is provided with a cleaning component 2, a liquid spray port 14, and a floor scraper 19, a roller brush cavity is provided on the front side of the floor brush 1, the cleaning component 2 is installed in the roller brush cavity, the floor scraper 19 is located at the bottom of the floor brush at the roller brush cavity, and contacts the surface to be cleaned, there is a gap between the floor scraper 19 and the cleaning component 2, the cleaning component rotates, and the dirt suction motor works to suck the dirt or dirty liquid into the roller brush cavity through the gap, and then enters the dirt suction port, the floor brush 1 is also provided with a roller brush cover 15 covering the cleaning component 2, and the surface cleaning device 10 can be placed on the base The seat 80 is used for automatic cleaning of the cleaning component 2. A ventilation gap is provided between the base 80 and the outer surface of the cleaning component 2. The ventilation gap extends toward the sewage suction port and is connected with the sewage suction port to form an air suction path. The upper shell 801 is provided with a bottom surface 8011 and an upwardly extending peripheral edge 82 located around the bottom surface 8011. A concave cleaning groove 81 is formed on the bottom surface 8011. The upper shell 801 has three peripheral edges, which are respectively arranged at the front end of the upper shell 801 and the left and right ends of the cleaning groove 81. The ventilation gap includes a second section of the gap formed by the bottom surface 8011 of the upper shell 801 and the outer surface of the cleaning belt 22 of the cleaning component 2, and a first section of the gap formed by the inner surface of the peripheral edge 82 located at the front end of the upper shell 801 and the outer surface 221 of the cleaning belt 22 of the cleaning component 2. The second section of the gap includes the gap formed by the cleaning tank 81 and the outer surface of the cleaning belt 22. The floor brush 1 is placed on the base 80. The floor scraper 19 of the floor brush 1 is in contact with the bottom surface 8011 of the upper shell 801 on the rear side of the cleaning tank 81. The floor scraper 19 and the cleaning component 2 form a front suction port 131. Under the action of the suction fan, the dirty liquid or dirt is first sucked into the roller brush cavity through the front suction port 131, and then sucked into the suction channel from the roller brush cavity by the suction port 13, and then sent into the dirt bucket 32 ​​through the suction channel. The ventilation gap and the suction port 13 form a suction path. In this embodiment, the floor scraper 19 is located at the port on the rear side of the cleaning tank 81. Therefore, the suction path in this embodiment includes the ventilation gap, the front suction port 131, the roller brush cavity between the front suction port 130 and the suction port 13, and the gap formed by the suction port and the cleaning component. Figure 3 , Figure 6 , Fig. 9 and Fig.12 as well as Fig.13As shown, the ventilation gap refers to the gap formed by the bottom surface 8011 of the upper shell 801 and the outer surface of the cleaning belt 22 of the cleaning component 2, that is, the gap between the upper shell 801 and the cleaning component corresponding to the arc length from point F at the top 822 of the surrounding edge 82 to point G at the front suction port 131, and the gap between the cleaning component and the front side wall of the floor brush corresponding to the suction port from point G to point H. When the suction motor is working, the second airflow 62 located in the first gap and the third airflow 63 located in the second gap are formed in the ventilation gap, so the suction path includes the gap corresponding to the arc length of the FG segment and the gap corresponding to the GH segment of the suction port. The area of ​​the cleaning component located in the suction path described in the utility model is S j , the surface area of ​​the cleaning component is S, where S j ≥0.5S, since the cleaning component 2 generally includes a circular roller 21 and a cleaning belt 22 nested outside the circular roller 21, and the cleaning belt 22 is provided with a tuft 211, the surface area of ​​the cleaning component is the product of the outer circumference of the cleaning component and the length of the roller, therefore, the ratio of the surface area of ​​the cleaning component located in the suction path to the surface area of ​​the cleaning component is the arc length c of the cleaning component located in the suction path. j The ratio of the cleaning component's circumference c, i.e. c j / c≥0.5, when the surface cleaning device performs automatic cleaning of the cleaning component, the cleaning component rotates continuously, and for each rotation of the cleaning component, no less than 0.5 times the circumference of the cleaning component enters the suction path, and the area of ​​the cleaning component located in the suction path is S j The ratio of the surface area S of the cleaning component to the arc length c of the cleaning component located in the suction path j The ratio of S to the circumference c of the cleaning component is equal, so S j / S≥0.5. Therefore, each time the cleaning component rotates one circle, the cleaning component entering the air suction path is longer. Under the action of the dirt suction motor, each time the cleaning component rotates one circle, most of the moisture on the hair tufts on the cleaning component can be taken away by the airflow, so that the water vapor on the surface of the cleaning component is separated, and the ventilation gap extends toward the dirt suction port, so that the area of ​​the cleaning component located in the air suction path is greater than or equal to half of the surface area of ​​the cleaning component or more, increasing the ventilation area of ​​the cleaning component, enhancing the energy exchange between the ventilation gap between the base and the cleaning component and the outside world, allowing more external airflow to continuously participate in the drying process of the hair tufts of the cleaning component, thereby increasing the amount and frequency of energy exchange, thereby accelerating the speed at which the moisture on the hair tufts is taken away, shortening the drying time of the hair tufts of the cleaning component, and thus being able to quickly dry the cleaning component after cleaning.

[0047] The surface cleaning device described in the utility model is a type of floor scrubber. When we stand on the right side of the surface cleaning device and observe, we set the direction of the cleaning component moving out of the roller brush chamber as forward rotation. At this time, we see that the cleaning component rotates counterclockwise. In the utility model, we define the counterclockwise rotation of the cleaning component as forward rotation; we set the direction of the cleaning component moving into the roller brush chamber as reverse rotation. At this time, we see that the cleaning component rotates clockwise. We define the clockwise rotation of the cleaning component as reverse rotation. When the surface cleaning device performs cleaning work, in order to ensure the working performance of the drive motor and the cleaning effect of the surface cleaning device and reduce the power consumption of the surface cleaning device, we set the drive motor to rotate forward most of the time. Of course, it is understandable that we can also make the opposite setting.

[0048] The structure of the surface cleaning device is described in detail below through specific embodiments.

[0049] Embodiment 1

[0050] As the surface cleaning device described in the utility model, Figures 1 to 3As shown, it includes a surface cleaning device 10, a base 80 for placing the surface cleaning device 10, and a water supply system and a sewage suction system. The surface cleaning device 10 includes a body 7 and a floor brush 1 with a roller brush chamber connected to the body 7. The floor brush 1 is provided with a rotatable cleaning component 2, a driving motor (not shown in the figure) for driving the cleaning component 2 to rotate, a scraper bar 12 that contacts the cleaning component 2, and a sewage suction port 13 and a liquid spray port 14 located behind the cleaning component 2. The sewage suction system includes a sewage suction fan 31 and a sewage bucket 32 ​​connected to the sewage suction port 13. A positioning structure is provided on the body 7 of the surface cleaning device 10, and an independent and detachable power source component 71 is provided on the positioning structure. The power source component includes a battery pack (not shown in the figure), a control panel (not shown in the figure) and a sewage suction motor (not shown in the figure) arranged below the battery pack. A display device (not shown in the figure) is arranged at the upper end of the power source component 71. The surface cleaning device may further include a dust cup (not shown in the figure) and a suction arm. The power source component 71 including the battery pack and the suction fan is separately installed in a housing and provided with a handle. The power source component 71 can be removed and connected to the dust cup and the suction arm for indoor dust collection. In this embodiment, the floor brush 1 is also provided with a roller brush cover 15 covering the cleaning component 2. The dirt bucket 32 ​​is detachably arranged on the body 7. The water supply system includes a clean water tank 41 and a water supply device and a liquid supply pipeline (not shown in the figure) for supplying water in the clean water tank 41 to the cleaning component 2. The power source component 71 is installed on the body 7 to drive the liquid supply pipeline to spray liquid to the cleaning component 2 or the ground. At the same time, the cleaning component 2 rotates and the suction motor works, so that it can be used to clean the surface to be cleaned. In this embodiment, the water supply device is a water pump (not shown in the figure), and the floor brush 1 is also provided with a floor scraper 19. A liquid supply pipeline is set in the floor brush 1, and the liquid supply pipeline is connected with the liquid spray port 14 on the floor brush 1. Water is supplied to the cleaning component 2 or the surface to be cleaned through the liquid spray port 14 to wet the cleaning component 2 or the surface to be cleaned, so that the cleaning component 2 can clean the surface to be cleaned. A sewage suction pipeline is also provided in the floor brush 1, and the sewage suction pipeline is connected with the sewage suction port 13 to suck the dirty liquid or dirt in the roller brush cavity from the sewage suction port 13 into the sewage suction pipeline and send it into the sewage bucket 32. The floor brush 1 is also provided with a scraping member 12 for scraping and cleaning the cleaning belt 22 on the cleaning component 2. The cleaning component 2 includes a roller 21 arranged in a roller brush chamber and a cleaning belt 22 sleeved on the outer surface of the roller 21. The cleaning belt 22 has a tuft 211. The scraping member 12 is in contact with the tuft 211 of the cleaning component 2. When the surface cleaning device is placed on the base for automatic cleaning, the cleaning component 2 rotates, and the scraping member 12 scrapes and cleans the tuft 211 on the cleaning component 2. The sewage suction system sucks the cleaned sewage into the sewage bucket 32 ​​through the sewage suction port.

[0051] In this embodiment, the base 80 includes an upper shell 801 and a bottom shell 802. A charging bracket 803 is also provided on the rear side of the base 80. The accommodating portion 8 refers to a space formed by the upper shell 801 of the base 80 for placing a surface cleaning device. The upper shell 801 has a bottom surface 8011 and an upwardly extending peripheral edge 82 located around the bottom surface 8011. A concave cleaning groove 81 is formed on the bottom surface 8011. The upper shell has three peripheral edges, which are respectively arranged at the front end of the upper shell and the left and right ends of the cleaning groove. There is a ventilation gap between the accommodating portion 8 and the outer surface of the cleaning component 2. In this embodiment, a support limiting structure 86 is provided on the upper shell 801. The surface cleaning device 10 is placed on the base 80, and the floor brush 1 is placed on the bottom surface 8011 of the upper shell 801 and supported by the supporting and limiting structure 86, so that a gap is formed between the upper shell 801 and the outer surface 221 of the cleaning belt 22 of the cleaning component 2. Therefore, the ventilation gap is the gap formed between the upper shell 801 and the outer surface 221 of the cleaning belt 22 of the cleaning component 2. The ventilation gap includes a second section of the gap formed by the bottom surface 8011 of the upper shell 801 and the outer surface of the cleaning belt 22 of the cleaning component 2, and a first section of the gap formed by the inner surface of the peripheral edge 82 located at the front end of the upper shell 801 and the outer surface 221 of the cleaning belt 22 of the cleaning component 2. The second section of the gap includes the gap formed by the outer surface of the cleaning groove 81 and the cleaning belt 22. The floor brush 1 is placed on the base 80. The floor scraper 19 of the floor brush 1 is in contact with the bottom surface 8011 of the upper shell 801 on the rear side of the cleaning groove 81. The floor scraper 19 and the cleaning component 2 form a front suction port 131 of the surface cleaning device. Under the action of the suction fan, the dirty liquid or dirt is first sucked into the roller brush cavity through the front suction port, and then sucked into the suction channel from the roller brush cavity by the suction port, and then sent into the dirt bucket through the suction channel. The base 80 is provided with a receiving portion 8 for receiving the cleaning assembly 2, a ventilation opening is formed between the receiving portion 8 and the roller brush cover 15, the ventilation gap extends outward to the ventilation opening EF, the ventilation gap extends inward to the sewage suction port 13, the ventilation opening EF, the ventilation gap, and the sewage suction port 13 form a suction path, and in this embodiment, the floor scraper 19 is located at the port of the cleaning tank 81. Therefore, the suction path in this embodiment includes the ventilation opening EF, the ventilation gap, the front sewage suction port 131, and the roller brush cavity and the sewage suction port located between the front sewage suction port 130 and the sewage suction port 13, as shown in FIG. Figure 3As shown, the ventilation gap refers to the gap formed by the bottom surface 8011 of the upper shell 801 plus the height of the surrounding edge and the outer surface of the cleaning belt of the cleaning component, that is, the gap corresponding to the arc length from point F at the top of the surrounding edge 822 to point G at the front suction port 131. When the suction motor is working, a first airflow 61 is formed at the ventilation opening EF, and a second airflow 62 located in the first gap and a third airflow 63 located in the second gap are formed in the ventilation gap. Therefore, the suction path includes the ventilation opening EF section, the ventilation gap FG section and the suction port GH section. The surface area of ​​the cleaning component 2 located in the suction path is S. j , the surface area of ​​the cleaning component 2 is S, where S j ≥0.5S. Since the cleaning component 2 is a circular roller 21 and a cleaning belt 22 nested outside the circular roller 21, and the cleaning belt 22 is provided with a tuft 211, the surface area of ​​the cleaning component is the product of the outer circumference of the cleaning component and the length of the roller. Therefore, the ratio of the surface area of ​​the cleaning component located in the suction path to the surface area of ​​the cleaning component is the arc length c of the cleaning component located in the suction path. j The ratio of the cleaning component's circumference c, i.e. c j / c≥0.5. Figure 3 It can be seen that the arc length of the cleaning component located in the air suction path is EH, the central angle corresponding to the arc length EH is α, and the central angle corresponding to the circumference c of the cleaning component is 360°. In this embodiment, α is 252°, so c j / c=0.7. When the surface cleaning device performs automatic cleaning of the cleaning component, the cleaning component rotates continuously, and each time the cleaning component rotates one circle, a cleaning component with 0.7 times the circumference enters the suction path, so that each time the cleaning component rotates one circle, the cleaning component entering the suction path is longer, and under the action of the dirt suction motor, each time the cleaning component rotates one circle, most of the moisture on the tufts on the cleaning component can be taken away by the airflow, so that the water vapor on the surface of the cleaning component is separated, so that the area of ​​the cleaning component located in the suction path is 0.7 times the surface area of ​​the cleaning component, increasing the ventilation area of ​​the cleaning component, enhancing the energy exchange between the suction path between the base and the cleaning component and the outside world, so that more external airflow continuously participates in the drying process of the tufts of the cleaning component, thereby increasing the amount of energy exchange, and the existence of the ventilation gap and its extension to the dirt suction port and the ventilation opening greatly increase the area and frequency of each energy exchange, thereby accelerating the speed at which the moisture on the tufts is taken away, shortening the drying time of the tufts of the cleaning component, and thus quickly achieving the drying of the cleaning component after cleaning. The wind can directly and continuously blow to the roots of the hair tufts and the roller wall, and the drying can continue for a certain period of time, so that the hair tufts from the root to the tip can be blown by the wind, so that the cleaning component and its hair tufts, the roller brush cavity, and the sewage suction pipe can be dried more quickly. Since they are cleaned more thoroughly and dried, they are not easy to mold and stink. Therefore, this structure increases the drying efficiency, is more hygienic, and provides a better customer experience.

[0052] In this embodiment, the base 80 is provided with a accommodating portion 8 for accommodating the cleaning component 2, and a ventilation opening is formed between the accommodating portion 8 and the roller brush cover 15. The angle between the center of the rotating shaft of the cleaning component 2 and the line connecting the two ends of the ventilation opening is θ, where 45°≤θ≤75°. In this embodiment, the cleaning component 2 adopts a single roller brush structure including a roller 21 and a cleaning belt. The center of the rotating shaft of the cleaning component 2 refers to the central axis of the roller 21. The central axis of the roller 21 is o. Point o represents the central axis of the roller located at the ventilation opening EF. Point E represents the front end of the roller brush cover 15. The accommodating portion 8 includes a cleaning groove 81 located at the bottom of the base 80 and a surrounding edge 82 located around the base 80. The surrounding edge 82 is arranged at the front end and the left and right ends of the cleaning groove to surround the front part and the left and right sides of the cleaning groove 81. When the cleaning component 2 is placed in the cleaning groove 81 to clean the cleaning component, the cleaning liquid in the cleaning groove or on the cleaning component is prevented from being thrown out or splashing out of the base 80. Point F represents the top of the accommodating portion 8. The surrounding edge 82 located at the front end of the cleaning groove 81 and The front end of the roller brush cover 15 forms a ventilation opening 60, and the front end 151 of the roller brush cover 15 forms the upper end E of the ventilation opening. The top of the accommodating portion 8 refers to the top 822 of the surrounding edge 82, and the top 822 of the surrounding edge 82 forms the lower end F of the ventilation opening 61. The arc length segment EF represents the ventilation opening, and point E and point F are the two end points of the ventilation opening, respectively. The line connecting the central axis o of the roller and the front end of the roller brush cover (i.e., the upper end E of the ventilation opening) is oE, and the line connecting the central axis o of the roller and the top end of the accommodating portion 8 (i.e., the lower end F of the ventilation opening) is oF. Here, the angle θ between oE and oF is the angle between the center of the rotating shaft of the cleaning component 2 and the connecting line between the two ends of the ventilation opening. The arc length EF between point E and point F represents the ventilation opening, and the angle formed by oE and oF is θ, and θ satisfies 45°≤θ≤80°. From the attached Figure 3 We can see that the central angle corresponding to the arc length of the surface of the cleaning component exposed at the ventilation opening is basically equal to the angle between oE and oF. Therefore, the central angle corresponding to the arc length of the surface of the cleaning component exposed at the ventilation opening is also θ. In this embodiment, θ=75°, which ensures that when the cleaning component 2 is rotating for cleaning or sucking dirt, the dirty liquid scraped off by the scraper on the cleaning component follows the cleaning component to the ventilation opening EF and can be blocked by the base and the roller brush cover and thrown into the base without being thrown out, and then sucked into the dirt bucket 32 ​​from the dirt suction port 13 by the dirt suction fan, thereby ensuring the effect of sucking and collecting the dirty liquid. At the same time, because the base 8 and the floor brush 1 form a larger ventilation opening EF for the cleaning component 2, a larger inlet is provided for the continuous entry of external airflow, such as Figure 3As shown, the arrowed line between the EF segments represents the first segment of airflow 61 at the ventilation opening, which increases the amount of airflow entering from the ventilation opening EF, greatly increasing the contact area and frequency between the cleaning component 2 and the airflow; after automatic cleaning is completed, the suction system continues to work, so that the moisture on the hair tufts on the cleaning component is carried away by the airflow, thereby realizing automatic drying of the cleaning component. Due to the existence of a larger ventilation opening, when the airflow enters a space smaller than the ventilation opening, such as the suction port, the intensity of the airflow increases, thereby further improving the strength and speed of the airflow to carry away the moisture on the hair tufts of the cleaning component between the ventilation opening and the suction port. With the movement of the cleaning component and the operation of the suction fan, the cleaning component can be continuously and frequently blown by the high-pressure airflow, thereby exchanging energy and quickly carrying away the moisture on it, thereby greatly shortening the drying time. This cleverly utilizes the wind resources, avoids waste of resources, and further improves the drying efficiency of the cleaning component of the surface cleaning device after self-cleaning.

[0053] In this embodiment, the top 822 of the edge 82 at the front end of the cleaning tank 81 is set no higher than the central axis o of the cleaning component 2. As shown in the figure, the edge 82 is set at an obtuse angle with the bottom of the base 80. In this embodiment, the angle formed between the edge 82 and the bottom surface 8011 of the base is 105°. The cleaning component 2 is located in the ventilation opening EF, and at least part of the surface of the cleaning component 2 is exposed at the ventilation opening 61. The cleaning component 2 includes a roller 21 and a cleaning belt 22 sleeved on the roller 21. The length of the projection of the cleaning component 2 exposed outside the roller brush cover 15 on the horizontal plane is b. The length of the projection of the roller 21 located at the ventilation opening EF and the cleaning belt 22 sleeved on the roller 21 on the horizontal plane is d. Since the roller 21 is circular, the cleaning belt is sleeved on the circular roller 21, so that The cleaning component 2 is a circular roller, so the projection of the roller 21 and the cleaning belt sleeved on the roller 21 on the horizontal plane is the length d of the diameter of the cleaning component 2, that is, the projection of the cleaning component 2 on the horizontal plane is equal to the length d of the diameter of the cleaning component 2, where b satisfies 0.1d<b<0.5d. In this embodiment, the spacing between the cleaning component 2 and the top 822 of the surrounding edge 82 is δ, where δ=7mm, b=0.3d, so that the top of the surrounding edge of the base is 1.5mm from the top of the cleaning component. The spacing is small, while the ventilation opening is large enough, which not only ensures that the roller brush cover covers a reasonable area of ​​the cleaning belt, but also appropriately increases the area of ​​the cleaning belt exposed at the ventilation opening. When the surface cleaning device performs automatic cleaning of the cleaning belt, in addition to the dirty liquid scraped off by the scraper bar can directly fall into the suction port, another part of the dirty liquid or cleaning liquid is thrown out under the action of centrifugal force when the roller of the cleaning component rotates, and can be blocked by the roller brush cover, the base and the surrounding edge to fall into the cleaning tank, and can be brought into the suction port under the action of the suction fan, and then sucked into the dirt bucket, without causing secondary pollution of the bottom surface; at the same time, after the cleaning belt is automatically cleaned, under the action of the suction fan, more external airflow enters the suction path through the larger and reasonable ventilation opening, and with the movement of the cleaning component and the operation of the suction fan, the cleaning component located in the suction path can also be better blown by the airflow, which increases the frequency and amount of contact between moisture and airflow, thereby further accelerating the speed at which the airflow takes away moisture on the tufts of the cleaning component, making the drying effect better and the efficiency higher.

[0054] When the cleaning component of the surface cleaning device needs to be dehydrated and dried, the surface cleaning device is placed on the base 80, and the outer surface 22 of the cleaning component 2 and the upper surface 801 of the base 80 have a certain distance to form a ventilation gap, that is, Figure 3The gap corresponding to the arc length of the FG segment is shown, and the ventilation gap extends toward the sewage suction port 13, and is respectively connected with the sewage suction port 13 and the ventilation opening EF segment to form an air suction path, namely the EH segment, and the angle θ between the center of the rotating shaft of the cleaning component 2 and the connecting line of the two ends of the ventilation opening is 75°. The existence of the large ventilation opening allows more external airflow to continuously participate in the drying process of the hair tufts of the cleaning component, thereby increasing the amount of energy exchange. The existence of the ventilation gap and its extension to the sewage suction port and the ventilation opening greatly increase the area and frequency of each energy exchange, thereby accelerating the speed at which moisture on the hair tufts is taken away and shortening the drying time of the hair tufts of the cleaning component. Therefore, the cleaning component can be dried quickly after cleaning. The wind can directly and continuously blow to the roots of the hair tufts and the roller wall, and the drying can continue for a certain period of time, so that the hair tufts from the root to the tip can be blown by the wind, so that the cleaning component and its hair tufts, the roller brush cavity, and the sewage suction pipe can be dried more quickly. Since they are cleaned more thoroughly and dried, they are not easy to mold and stink. Therefore, this structure increases the drying efficiency, is more hygienic, and provides a better customer experience.

[0055] The working process of the dehydration and drying step of the cleaning component is as follows: the cleaning component 2 rotates, the scraping strip 12 squeezes and scrapes the cleaning component 2, and the scraped dirty liquid or dirt is thrown into the front dirt suction port 131 by the cleaning component 2, and the dirt suction fan 41 is started at the same time, and the external airflow is sucked into the suction path, flows through the suction path and is sucked into the front dirt suction port 131, the roller brush cavity, the dirt suction port 13, and the dirt holding bucket, and then enters the machine body from the dirt holding bucket, and is then discharged to the outside of the machine body by the dirt suction motor. In this process, the airflow takes away the moisture on the cleaning component in the suction path, and forms a negative pressure in the dirt holding bucket, so that the scraped dirty liquid or dirt and the dirt sucked by the air are discharged. The moisture carried away by the flow enters the dirt bucket 32 ​​through the front dirt suction port 131 and the dirt suction port 13. This process lasts for a certain period t1, and the cleaning component is dehydrated and air-dried, 2min≤t1≤10min. In this embodiment, the water content of the cleaning component after automatic cleaning is increased by 5g compared with the water content of the new clean and dry cleaning component. After the automatic cleaning, the cleaning component is dehydrated and dried for 10 minutes t1, and the increase in the water content of the cleaning component is 0.75g. Therefore, after dehydration and drying, the dehydration and drying rate of the cleaning component reaches 85%, that is, the rapid dehydration and drying of the cleaning component is achieved.

[0056] In this embodiment, in addition to the independent dehydration and drying function, the surface cleaning device is also provided with an automatic cleaning function of the cleaning component, and the dehydration and drying step of the cleaning component is arranged in the automatic cleaning process of the cleaning component.

[0057] When it is necessary to realize automatic cleaning of the surface cleaning device, the working process of the control method of the surface cleaning device is as follows: the surface cleaning device is placed on a base, and the automatic cleaning function of the surface cleaning system is started, and the surface cleaning system starts the automatic cleaning work:

[0058] A. Cleaning stage S1: Control the water supply system to wet and / or soak the cleaning component, the cleaning component rotates, the scraper scrapes and cleans the cleaning component, the sewage suction fan operates at a first power, and the dirty liquid and / or dirt generated after scraping are sucked into the sewage tank through the sewage suction port and the sewage suction pipe;

[0059] B. Sewage extraction stage S2: the water supply system is controlled to stop supplying liquid, the cleaning component rotates, and the sewage suction fan operates at a second power to suck the residual liquid in the cleaning component and the cleaning tank into the sewage holding bucket through the sewage suction port, wherein the first power and the second power are the target powers corresponding to the sewage suction fan in the cleaning stage S1 and the sewage extraction stage S2, respectively, and the second power is greater than the first power.

[0060] C. Dehydration and drying stage S3: After the sewage extraction stage S2 is finished, the cleaning component continues to rotate, and the dirty liquid or dirt scraped off by the scraper is thrown into the sewage suction port. The sewage suction fan operates at the third power, and the external airflow enters the ventilation gap, i.e., the gap corresponding to the arc length FG segment, through the ventilation opening EF, passes through the ventilation gap to the front sewage suction port 131, and then enters the sewage suction port, and enters the sewage holding bucket through the sewage suction port, and is then sucked into the machine body and continues to be discharged from the machine body. In this process, negative pressure is generated in the sewage holding bucket, and the airflow takes away the water vapor on the cleaning component in the suction path and enters the sewage suction port and the sewage holding bucket, so that it is quickly dehydrated and dried. Among them, the third power is not less than the second power.

[0061] Of course, it is understandable that we can also set the dehydration and drying stage S3 in the sewage extraction stage S2; or, we can also add at least one reversal process of the cleaning component during the automatic cleaning of the cleaning component by the surface cleaning device, that is, during the forward rotation of the cleaning component, and the reversal time of the cleaning component is shorter than the forward rotation time, which can further improve the self-cleaning effect of the cleaning component by the surface cleaning device; or, after the automatic cleaning of the cleaning component is completed, add a short reversal process during the forward rotation and self-drying of the cleaning component, because in the initial stage of drying, the hair tufts still contain moisture and pass through the scraping element. After repeated scraping, some tufts of hair will still stick together in clumps, so when the cleaning component rotates in the forward direction, the tufts of hair will be pressed against the wall of the cleaning component by the scraping member, and an additional reverse rotation will be added. Since the tufts of hair can stand up and break up when the original direction of movement is changed, the airflow can more easily enter the roots of the tufts under the action of the suction fan, blowing the tufts, increasing the contact between the inside and roots of the tufts and the airflow, and the tufts and their roots as well as the surface of the roller can be dried more easily and quickly by the wind. By setting this step, the drying efficiency is greatly improved, the drying effect is improved, and it is more energy-efficient, ensuring the hygienic effect of the cleaning component. This inventive concept that does not deviate from the technical solution is also within the protection scope of this solution, and will not be given examples one by one here.

[0062] Embodiment 2:

[0063] The difference between this embodiment and the first embodiment is that the structures of the base and the surface cleaning device are different. Figures 4 to 6As shown, the battery pack, control panel and sewage suction motor are all arranged in the shell of the fuselage 7, the display device is arranged at the upper port of the shell of the fuselage 7, and the floor brush 1 of the surface cleaning device 10 is also provided with a comb tooth structure 16, which is arranged below the scraper bar 12 and located at the sewage suction port 13. The comb tooth part of the comb tooth structure 16 blocks the upper part of the sewage suction port 13. Under the action of the sewage suction fan, the pressurization effect at the sewage suction port is achieved, ensuring that hair and other entanglements can be quickly sucked into the sewage suction port after being scraped by the comb teeth, avoiding hair and other entanglements from being entangled in the cleaning component, and the cleaning effect is good. The base 8 is provided with a fan 91, and the fan 91 is arranged at the rear part of the base 8. The base 8 is provided with an air supply hole 821 for guiding wind to the cleaning component 2. The upper shell 801 and the bottom shell 802 form an inner cavity of the base, and an air supply channel connected with the air supply hole 821 is formed in the inner cavity of the base. The air supply hole 821 is arranged on the surrounding edge 82 formed by the upper shell 801. In this embodiment, the gap δ between the top 822 of the surrounding edge 82 and the cleaning component is 13mm, so that the distance between the air supply hole and the cleaning component is reasonable, and a certain distance is given to the two air flows to meet, leaving sufficient space for the two air flows to mix, so that the wind blown by the fan can be fully mixed with the air flow entering from the ventilation opening, and the wind nesting phenomenon will not occur. The energy loss of the two air flows meeting is small, so that the two air flows move toward the suction port together after being fully mixed, with less energy loss and high utilization rate, which is more conducive to the drying of the cleaning component. The length of the projection of the cleaning component 2 exposed outside the roller brush cover 15 on the horizontal plane is b=0.2d, and the central angle α of the cleaning component corresponding to the arc length of the EH segment is 229°, that is, the ratio cj / c of ​​the area of ​​the cleaning component located in the suction path to the surface area of ​​the cleaning component is 0.6, and the angle θ=60° between the center of the rotating axis o of the cleaning component 2 and the connecting line of the two ends E and F of the ventilation opening 61, so that the ventilation opening is large and reasonable, and the area of ​​the cleaning component entering the suction path is large enough. Such a structure further ensures that when the cleaning component is automatically cleaned, the cleaning component rotates, and the dirty liquid or cleaning liquid driven by the centrifugal force of the cleaning component can be thrown out and fall into the base, thereby ensuring the cleaning effect of the cleaning component, saving water, and also ensuring that in the process of drying the cleaning component after cleaning, the dirty liquid or cleaning liquid can be carried away by the airflow sucked in through the larger ventilation opening, and then enter the suction port through the ventilation gap, further increasing the air intake, thereby ensuring the suction effect after cleaning and further improving the drying effect.

[0064] like Figure 6As shown, the air suction path includes a first airflow 61 located at the ventilation opening EF and a second airflow 62 and a third airflow 63 located in the ventilation gap. When the surface cleaning device is placed on the base for automatic cleaning, the automatic cleaning is completed, the dirt suction fan continues to work, and the fan in the base rotates to blow the airflow in the base through the air supply hole 821 to the cleaning component 2 to form a fourth airflow. For this purpose, at the second airflow 62, the fourth airflow 64 blown out from the air supply hole 821 participates in the air suction path, so that the fourth airflow 64 emitted from the air supply hole 821 in the base 80 is discharged. The segment airflow 64 is mixed with the corresponding second segment airflow 62 on the EH segment of the suction path, further increasing the amount of ventilation airflow, thereby accelerating the removal of moisture on the outer surface of the cleaning component in the suction path. Since a comb tooth structure is provided at the sewage suction port, the wind pressure is further increased here. Under the action of the sewage suction fan, the airflow drives the moisture on the cleaning component to move quickly into the sewage suction port, and enters the sewage suction pipe through the sewage suction port, quickly sucking the moisture into the sewage container or into the fuselage and discharging it from the fuselage to the outside of the fuselage, thereby quickly drying the cleaning component 2 and further improving the drying efficiency.

[0065] The dehydration and drying stage S3 of the cleaning component is carried out as follows: the fan and the sewage suction fan are started, the cleaning component rotates, and the moisture on it is thrown into the sewage suction port. The fan supplies air to the cleaning component 2, and the sewage suction fan sucks in the first section of airflow 61 from the ventilation opening EF, and runs along the ventilation gap, that is, the gap corresponding to the arc length of the FG segment. In this process, it is mixed with the wind sent to the cleaning component 2 by the fan 91, that is, it is mixed with the second section of airflow 62, and the two continue to move forward and mix with the third section of airflow 63, thereby greatly increasing the amount of air entering the ventilation gap and the sewage suction port, thereby accelerating the removal of moisture from the cleaning component corresponding to the suction path, that is, the arc length of the EH segment, and quickly sucking the moisture into the sewage container, thereby quickly drying the cleaning component. Until the cleaning component is completely dry, the cleaning component stops rotating, and then the fan stops working, the drying step is completed, and the automatic cleaning work is completed. This process lasts for a certain period t1, and the cleaning component is dehydrated and air-dried. In this embodiment, the water content of the cleaning component after automatic cleaning is increased by 5g compared with the water content of the new, clean and dry cleaning component. After the drying and dehydration time t1 of the cleaning component reaches 7 minutes, the water content of the cleaning component increases by 0.5g, and the dehydration and drying rate reaches 90%, which means that faster dehydration and drying of the cleaning component is achieved.

[0066] Embodiment three:

[0067] The difference between this embodiment and the first embodiment is that the structure of the base of the surface cleaning device is different. Figures 7 to 9As shown, the cleaning assembly 2 is a crawler structure, including a first roller 212, a second roller 213 and a support frame 214 arranged between the first roller 212 and the second roller 213. The first roller 212 and the second roller 213 are provided with a cleaning belt 22 on their outer sleeves, and a tuft of hair is arranged outside the cleaning belt 22. The cleaning assembly 2 also includes a side plate 23, and a button is arranged on the side plate 23 (not shown in the figure). When the button on the side plate 23 of the cleaning assembly 2 is pressed, the first roller 212 and the second roller 213 move away from each other, and the cleaning belt 22 is tightened and fixed outside the first roller 212 and the second roller 213. A rotating shaft (not shown in the figure) is provided at one end of the cylinder 212 and the second roller 213, and one end of the rotating shaft is inserted into the floor brush and connected to the transmission structure (not shown in the figure). The other end of the cleaning component 2 is installed on the other end of the floor brush 1 through the side plate 23. A driving motor (not shown in the figure) is provided in the floor brush 2. The driving motor drives the first roller and the second roller to move through the transmission structure, so that the cleaning belt continuously wipes the surface to be cleaned. After removing the cleaning component from the floor brush, press the cleaning component again, the first roller and the second roller are close to each other, and the cleaning belt 22 can be removed from the first roller and the second roller for cleaning or replacement. In this embodiment, since a crawler-type cleaning assembly is used, and since the first roller 212 is arranged at the ventilation opening EF between the accommodating portion of the base and the roller brush cover, the central axis of the cleaning assembly 2 here refers to the central axis o of the first roller 212, and the top 822 of the surrounding edge 82 at the front end of the cleaning tank 81 is not higher than the central axis of the cleaning assembly 2. In this embodiment, the central axis o of the first roller and the top 822 of the surrounding edge 82 are arranged at the same height, and the front end point E of the roller brush cover 15 forms the upper end of the ventilation opening. The top 822 of the surrounding edge 82 of the base 80 is represented by point F, then point F The lower end of the ventilation opening is formed, and the lines connecting the central axis o and points E and F are oE and oF, respectively. Here, oE and oF are the lines connecting the central axis of the cleaning component and the two ends of the ventilation opening, and the two form an angle θ. In this embodiment, θ=80°. The length of the arc length EF segment is large, so that the ventilation opening is large enough. The length of the projection of the cleaning component 2 exposed outside the roller brush cover 15 on the horizontal plane is b=0.3d. The central angle of the cleaning component of the first roller of the cleaning component corresponding to the arc length of the EH segment is 210°. Therefore, the ratio of the circumference of the first roller located on the ventilation path to the circumference of the entire first roller is c. j / c=0.6, plus the length of the cleaning belt located at the support frame is also within the ventilation gap, so that the area of ​​the cleaning belt located on the ventilation path reaches at least 0.6 times the outer surface of the cleaning belt, so that the outer surface of the cleaning component and the accommodating portion, that is, the upper surface 8011 of the upper shell 801, form a reasonable and sufficient ventilation gap. Therefore, the surface cleaning device and the base form a larger ventilation opening, and a support member 83 is arranged on the cleaning tank 81. The support member 83 is arranged at both ends of the cleaning tank 811 and a boss protruding from the bottom surface of the cleaning tank 81 is provided, and the boss extends from the surrounding edges 82 on the left and right sides of the cleaning tank 81 into the cleaning tank. The two ends of the support frame 214 of the cleaning component 2 are in conflict with the top surface of the boss. Since the floor brush adopts a crawler In this type of cleaning component, the length of the cleaning component is relatively long. In order to ensure that the outer surface of the cleaning belt of the entire cleaning component does not collapse due to the ventilation gap becoming smaller in the middle of the cleaning belt of the cleaning component, we set the support in the middle of the cleaning tank and close to the left and right ends of the cleaning tank. This ensures that the outer surface of the cleaning belt 22 of the cleaning component and the accommodating portion 8 form a reasonable and effective ventilation gap. The floor brush 1 is placed on the base 80, and the cleaning belt and the bottom surface 8011 of the upper shell 801 form a ventilation gap FG segment. The setting of the support 83 further ensures the ventilation gap required for air flow movement and increases the ventilation volume. Even if the area of ​​the cleaning belt of the cleaning component is larger than that of the single-roller mode, the cleaning component can still be quickly dried due to the larger area of ​​the cleaning component located on the lower suction path.

[0068] Since the diameters of the first roller and the second roller in this embodiment are equal to 45 mm, the floor brush 1 can be set thinner due to its small size, so it is easier for the floor brush to enter a low space such as under a bed or a sofa to perform surface cleaning. The horizontal distance δ between the top 822 of the surrounding edge 82 of the base 80 and the outer surface of the cleaning component 2 is 8 mm, and a heating device 92 is also provided on the base 80. The fan 91 sends the hot air generated by the heating device 92 to the cleaning component through the air supply hole 821 to dry the cleaned tufts 211. The heating device 92 is heated, and the fan 91 blows the heat generated by the heating device 92 out through the air supply port 82 to the cleaning component. The tufts 211 of component 2 are closer to the cleaning belt of the cleaning component because the air supply hole is closer to the cleaning belt of the cleaning component, so that the heat of the heating device can be blown to the cleaning component, reducing the heat loss rate of the heating device through the larger ventilation opening. Therefore, the heat is fully absorbed by the cleaning component, so that the moisture on the cleaning belt of the cleaning component is quickly evaporated by the heat. Under the action of the sewage suction fan, the first section of the airflow 61 entering from the ventilation opening and the fourth section of the airflow 64 sent out from the air supply hole can meet and mix with each other to quickly heat up. The hot air can more efficiently take away the moisture of the cleaning component. Such a structure has higher drying efficiency and better drying effect, which greatly shortens the dehydration and drying time of the cleaning component and improves the dryness of the cleaning component.

[0069] Of course, we can also place the surface cleaning device on the base without disassembling the cleaning component, start the automatic cleaning function, and automatically clean the cleaning component. After the automatic cleaning of the cleaning component is completed, the dehydration and drying stage S3 of the cleaning component is carried out as follows: the fan, heating device, and dirt suction fan are started, the cleaning component rotates, and the moisture on it is thrown into the dirt suction port. The fan sends hot air to the cleaning component, and the dirt suction fan sucks the airflow from the ventilation opening, mixes with the hot air sent to the cleaning component by the fan, and continues to enter the dirt suction port along the air suction path, thereby accelerating the removal of moisture from the cleaning component located on the air suction path, and quickly sucking the moisture into the dirt storage bucket. At the same time, the moisture absorbs the heat of the cleaning component and evaporates, thereby quickly drying the cleaning component. This process lasts for a certain period of t1, and the cleaning component is dehydrated, air-dried, and quickly dried. In this embodiment, t1 lasts for 5 minutes to achieve the dehydration and drying of the cleaning component. The water content of the cleaning component after automatic cleaning is 6g, and the water content after drying reaches 0g, and the drying rate reaches 100%. The cleaning component stops rotating, and then the drying device also stops working, the drying step ends, and the automatic cleaning work is completed.

[0070] Of course, it can be understood that the sewage suction port is connected to the sewage holding bucket through the sewage suction pipe, and the cleaning stage S1 also includes a process of pulse cleaning the sewage suction pipe, wherein the dehydration and drying stage S3 also includes a sub-process of air-drying or drying the sewage suction pipe. This structure also speeds up the air-drying or drying speed of the sewage suction pipe; we can also set a step of reversing the cleaning component in the dehydration and drying stage of the cleaning component. In the initial stage of drying, the hair tufts still contain moisture, and after being scraped by the scraper, some of the hair tufts will still stick together in clumps. Therefore, if the cleaning component rotates in the forward direction all the time, the hair tufts will be tightly attached to the roller of the cleaning component by the repeated scraping action of the scraper, adding one reverse rotation. The hair tufts can stand up and break up when the original direction of movement is changed. At this time, under the action of the dirt suction fan, the airflow can more easily enter the roots of the hair tufts. In addition, the hot air sent out by the fan through the air supply holes blows the hair tufts, which increases the contact between the inside and roots of the hair tufts and the hot airflow. The hair tufts and their roots as well as the surface of the roller can be dried more easily and quickly by the hot air, thereby greatly shortening the time for the cleaning component to be dehydrated and dried. The time for the cleaning component to be dehydrated and dried only needs to last for 4 minutes or even 3 minutes to achieve a dehydration and drying rate of the cleaning component of 100%. Such innovative ideas that do not deviate from the present technical solution are all within the protection scope of the present solution and will not be given examples one by one here.

[0071] Embodiment 4:

[0072] The difference between this embodiment and the second embodiment is that the structures of the surface cleaning device and the base of the surface cleaning equipment are different. Figures 10 to 12As shown, the dirt bucket 32 ​​of the surface cleaning device is arranged on the rear side of the body 7, and the clean water tank (not shown in the figure) is arranged in the floor brush 1. Not only the floor brush is thinner, but also the body 7 is thinner, and the body can be rotated 180° relative to the floor brush. The cleaning component adopts a single roller brush, so that the body can lie flat on the surface to be cleaned, so that the floor brush and the body can be conveniently put under the bed and sofa for surface cleaning, which can be suitable for more work scenes. The upper shell 801 of the base 80 in this embodiment is also provided with a support member 83, which is a support rib protruding upward from the cleaning groove on the bottom surface of the upper shell 801, and is arranged near the connection between the left and right sides 82 and the sides on the front side of the cleaning groove. This not only supports the cleaning component in the cleaning groove, but also, because it is arranged at the corner of the base, it fully ensures the formation of a gap between the outer surface of the cleaning belt of the cleaning component and the upper shell 801, thereby ensuring that there is a sufficient ventilation gap between the cleaning component and the upper shell 801, so that most of the cleaning component can be located on the suction path, thereby improving the drying efficiency of the cleaning component and improving the drying effect. In this embodiment, the horizontal distance between the top 822 of the surrounding edge 82 of the base 80 and the outer surface of the cleaning component 2 is δ=22mm, and the angle θ between the central axis of the cleaning component and the connecting line of the two ends of the ventilation opening, oE and oF, is 60°, so that the ventilation opening is reasonable, and the length of the projection of the cleaning component 2 exposed outside the roller brush cover 15 on the horizontal plane is b=0.24d, and the central angle α of the cleaning component of the first roller of the cleaning component corresponding to the arc length of the EH segment is 235°. Although the air supply hole is far away from the cleaning component and the heat of the hot air is lost, sufficient space is reserved for the two airflows to meet. When the two airflows meet, the energy loss is small and there will be no problem of wind trapping. Therefore, the ratio of the circumference of the first roller located on the ventilation path to the circumference of the entire first roller is c j / c=0.65, and a reasonable and sufficiently long ventilation gap is formed between the outer surface of the cleaning component and the upper surface 8011 of the accommodating portion, i.e., the upper shell 801. In addition, an electric heating component (not shown in the figure) is also provided on the water supply pipeline in the floor brush 1 of the surface cleaning device 10 to heat the water in the water supply pipeline, thereby providing hot water for cleaning work or automatic cleaning of the cleaning component, which is convenient for processing heavy oily dirt or dried stains. At the same time, hot water is used for self-cleaning of the cleaning component. Since the temperature of the cleaning component is high after being cleaned, the drying time of the cleaning component is greatly shortened. In this embodiment, the time t1 for the cleaning component to be dehydrated and air-dried lasts for 4 minutes, i.e., the dehydration and drying of the cleaning component is realized. The water content of the cleaning component after automatic cleaning is 5g, and the water content after drying reaches 0g, and the drying rate reaches 100%. The cleaning component stops rotating, and then the drying device also stops working, the drying step ends, and the automatic cleaning work is completed.

[0073] Of course, it is understandable that in order to further improve the dehydration and drying efficiency of the cleaning component, we can also set a heat collecting structure 85 on the base 80, such as Fig.13 As shown, the heat collecting structure 85 is a heat collecting plate, which extends from the top 822 of the surrounding edge 82 toward the cleaning component, so that the maximum distance between the suspended end of the heat collecting structure 85 and the outer surface of the cleaning component is no more than 10 mm. In this way, the lower end of the ventilation opening is the suspended end F1 of the heat collecting structure 85, that is, the EF1 segment forms the ventilation opening of the present scheme, which not only forms a larger and reasonable ventilation opening, but also prevents the hot air sent out from the air supply hole 821 from being taken away by the air flow just entering from the outside. The heat can move to the ventilation gap and the cleaning component under the action of the heat collecting structure, thereby taking away the moisture on the cleaning component more quickly, thereby improving the speed and efficiency of dehydration and drying of the cleaning component. At the same time, the existence of the heat-collecting structure means that when dirty liquid or dirt is generated during the automatic cleaning stage and moves to the surrounding edge with the cleaning component, the dirty liquid is thrown to the heat-collecting structure under the centrifugal force of the cleaning component, and will fall into the base again under the obstruction of the heat-collecting structure, and will be sucked to the suction port and enter the dirt bucket along with the airflow, so that the cleaning component has good self-cleaning and dirt-extraction effects. Under this structure, the cleaning component can be dehydrated and dried effectively and efficiently; or we can also increase the height of the surrounding edge and set the angle between the surrounding edge and the bottom surface of the upper shell to 85° or 80°. This angle close to a right angle not only ensures that the size of the ventilation opening is reasonable, but also allows the wind from the air outlet to be sent to the cleaning component or the ventilation gap by the surrounding edge, thereby improving the drying efficiency of the cleaning component. Such innovative ideas that do not deviate from the present technical solution are all within the protection scope of this solution, and examples will not be given one by one here.

[0074] Embodiment five:

[0075] As the surface cleaning device described in the utility model, Fig.14As shown, it includes a surface cleaning device 10 and a base 80, the surface cleaning device 10 is a sweeping robot, the sweeping robot includes a body 5 and a cleaning component 2 and a walking wheel 51 arranged at the bottom of the body 5, a dirt holding bucket is arranged in the body, the cleaning component includes a crawler roller brush, a dirt suction port 13 is arranged behind the roller brush, and the dirt suction port is connected to the dirt holding bucket, the base 80 includes a seat body 84 arranged at the rear of the base 80 and a tray 87 arranged at the front side of the seat body 84, the upper surface of the tray 87 is provided with a cleaning groove (not shown in the figure), and a support is arranged in the cleaning groove. The support frame (not shown in the figure) automatically cleans and dehydrates the cleaning component. The sweeping robot enters the cleaning tank in the tray. The trays on both sides of the cleaning tank are provided with limiting structures (not shown in the figure). The walking wheels enter the limiting structures and are limited. The cleaning component is fixed above the cleaning tank. The upper surface of the tray and the lower surface of the cleaning component form a ventilation gap. The ventilation gap extends toward the suction port and is connected to the suction port to form a suction path, so that the hair tufts of the cleaning component are in a well-ventilated environment. The area of ​​the cleaning component located in the suction path is S j , the surface area of ​​the cleaning component is S, where S j ≥0.5S, under the action of the sewage suction motor, the air flow flows through the cleaning component located in the suction path, and the moisture on the hair tufts on the cleaning component can be taken away by the air flow, so that the water vapor on the surface of the cleaning component is separated, and the ventilation gap extends toward the sewage suction port, so that the area of ​​the cleaning component located in the suction path is greater than or equal to half of the surface area of ​​the cleaning component or more, thereby increasing the ventilation area of ​​the cleaning component, enhancing the energy exchange between the ventilation gap between the base and the cleaning component and the outside world, and allowing more external airflow to continuously participate in the drying process of the hair tufts of the cleaning component, thereby increasing the amount of energy exchange and the frequency of energy exchange, thereby accelerating the speed at which the moisture on the hair tufts is taken away, shortening the drying time of the hair tufts of the cleaning component, and thus quickly achieving the drying of the cleaning component after cleaning.

[0076] Of course, it is understandable that we can also provide a lifting device on the body, the lifting device lifts the walking wheel, the body is fixed on the support frame, the cleaning component is fixed above the cleaning tank, the upper surface of the tray and the lower surface of the cleaning component form a ventilation gap, the ventilation gap extends toward the sewage suction port, and is connected to the sewage suction port to form a suction path, so that the hair tufts of the cleaning component are in a well-ventilated environment.

[0077] 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 specific embodiments. Without departing from the technical principles of the present application, those skilled in the art can split and combine the technical solutions in the above various embodiments, and can also make equivalent changes or replacements to the relevant technical features. 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 device, comprising a surface cleaning device and a base, wherein the surface cleaning device comprises a dirt suction system and a floor brush having a dirt suction port, wherein the dirt suction system comprises a dirt storage bucket and a dirt suction fan, and the floor brush is provided with a cleaning component, characterized in that: The surface cleaning device is placed on a base, and there is a ventilation gap between the base and the outer surface of the cleaning component. The ventilation gap extends toward the suction port and is connected to the suction port to form a suction path. The area of ​​the cleaning component located in the suction path is S. j , the surface area of ​​the cleaning component is S, where S j ≥0.5S, under the action of the dirt suction motor, the airflow flows through the cleaning component located in the air suction path to separate the water vapor on the surface of the cleaning component.

2. The surface cleaning device according to claim 1, characterized in that: A cleaning groove is provided on the upper surface of the base, and the cleaning component is located in the cleaning groove. The bottom surface of the cleaning groove is arranged lower than the upper surface of the base. There is a distance between the cleaning component and the cleaning groove, so that a ventilation gap is formed between the cleaning component and the upper surface of the base.

3. The surface cleaning device according to claim 2, characterized in that: Support members are arranged at both ends of the cleaning tank, and the upper surface of the support members is arranged higher than the bottom surface of the cleaning tank. The cleaning component contacts the upper surface of the support members to form a distance with the cleaning tank, so that a ventilation gap is formed between the cleaning component and the base.

4. The surface cleaning device according to claim 1, characterized in that: The floor brush is also provided with a roller brush cover covering the top of the cleaning component, the front end of the roller brush cover and the front end of the base form a ventilation opening of the suction path, and the ventilation gap extends outward to communicate with the ventilation opening.

5. The surface cleaning device according to claim 4, characterized in that: At least a portion of the cleaning component is exposed at the ventilation opening, and the central angle θ corresponding to the arc length of the surface of the cleaning component exposed at the ventilation opening is 75°≥θ≥45°.

6. The surface cleaning device according to claim 4, characterized in that: The base also includes a surrounding edge located at the outer periphery of the cleaning tank, the upper end of the surrounding edge and the front end of the roller brush cover form a ventilation opening, and the surface of the surrounding edge and the cleaning component are spaced apart to form a front suction chamber located in the ventilation opening.

7. The surface cleaning device according to claim 6, characterized in that: The surrounding edge is tilted upward and outward, so that the longitudinal section of the front air suction cavity is in an inverted eight-shaped shape.

8. The surface cleaning device according to claim 6, characterized in that: The ventilation opening, the front suction chamber, the ventilation gap and the sewage suction port form a suction path of the sewage suction fan, so as to continuously suck the external wind into the sewage suction fan and take away the water vapor on the surface of the cleaning component located in the suction path.

9. The surface cleaning device according to claim 1, characterized in that: The base is also provided with a fan and an air supply hole arranged toward the cleaning component, so as to continuously blow the wind in the base toward the cleaning component to take away the water vapor on the cleaning component.

10. The surface cleaning device according to claim 9, characterized in that: The base is also provided with a heating device, and the fan rotates to blow hot air generated by the heating device toward the cleaning component through the air supply hole to take away the water vapor on the cleaning component. At the same time, the water vapor absorbs the heat of the cleaning component and evaporates, so that the cleaning component is quickly dried.

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