A surface cleaning device

Abstract

This application discloses a surface cleaning device, including a floor brush with a housing, a cleaning component mounted on the front side of the housing, and a detachable water tank mounted on the housing. The water tank includes a liquid storage chamber extending from the cleaning component to the rear side of the housing. The liquid storage chamber is configured such that, from empty to full, the center of gravity of the water tank is always above the cleaning component. When the floor brush is dragged backward, because the center of gravity of the water tank is above the cleaning component, it can counteract the upward lifting torque of the cleaning component caused by the backward movement of the floor brush, reducing the probability of the cleaning component lifting upward. Furthermore, as the cleaning work progresses, regardless of changes in the amount of cleaning liquid in the water tank, the water tank can always exert a stable downward pressure on the cleaning component, ensuring full contact between the cleaning component and the surface to be cleaned, thus improving the cleaning efficiency of the surface cleaning device, especially its ability to remove stubborn stains.

Description

Technical Field

[0001] This application belongs to the field of cleaning equipment technology, and specifically relates to a surface cleaning device. Background Technology

[0002] Surface cleaning devices, especially floor scrubbers, typically consist of a main body and a floor brush for moving across the surface to be cleaned. The user holds the main body and moves the floor brush back and forth to clean the surface. The floor brush is equipped with cleaning components and a water tank for storing cleaning solution. To supply cleaning solution to the cleaning components or the surface to be cleaned, the floor brush also has a dispensing device for spraying the cleaning solution from the tank onto the cleaning components or the surface to be cleaned.

[0003] In existing technologies, the water tank is generally mounted on the floor brush. For example, patent CN202311346322.7 discloses a cleaning device in which the cleaning liquid tank is detachably connected to the main body of the floor brush. The cleaning liquid tank includes a box body with a liquid storage chamber; wherein, the side of the box body adjacent to the roller brush is configured to extend above the roller brush; the liquid storage chamber and the roller brush at least partially overlap in their orthographic projections on the working surface. This water tank structure not only covers the front side of the cleaning component, but also extends the entire water tank beyond the cleaning component along the front-to-back direction of the floor brush, so that the entire water tank is laid flat on the entire surface of the floor brush. Since the cleaning component occupies a small area of ​​the floor brush, this water tank structure greatly increases the capacity of the water tank without increasing the thickness of the floor brush. Because the cleaning component occupies a small area of ​​the floor brush, although the water tank extends to the front of the cleaning component, the center of gravity of the water tank is still located in the middle or rear of the floor brush, and there is still a probability of tilting the water tank during the back-and-forth dragging of the floor brush. Furthermore, due to the flat shape of the water tank, the horizontal layer inside is relatively short. When the floor brush is dragged backward, the cleaning fluid in the tank surges back and forth due to inertia. This forward or backward flow of fluid can cause momentary fluid shortages at any point. Regardless of whether the water outlet for the cleaning components is located at the front, rear, or middle of the tank, the forward and backward movement of the cleaning fluid causes a sharp drop in the fluid level near the outlet, or even temporary exposure to air. At this time, even if the suction component is still working, it is difficult to effectively extract the cleaning fluid, resulting in an interruption or instability in the fluid supply to the cleaning components or the surface to be cleaned, directly affecting the continuity of the cleaning process and the wetting effect. Utility Model Content

[0004] This application provides a surface cleaning device to solve the technical problems of traditional surface cleaning devices, such as the front end of the cleaning part easily curling up and the water tank supply being unstable during the back-and-forth dragging process.

[0005] The technical solution adopted in this application is as follows:

[0006] A surface cleaning device includes a floor brush with a housing, a cleaning component mounted on the front side of the housing, and a detachable water tank mounted on the housing. The water tank includes a liquid storage chamber extending from the cleaning component to the rear side of the housing. The liquid storage chamber is configured such that, from empty to fully loaded, the overall center of gravity of the water tank is located above the cleaning component.

[0007] The surface cleaning device described in this application also includes the following additional technical features:

[0008] The cleaning component is a tracked cleaning component, and the liquid storage chamber includes a first liquid storage part located above the tracked cleaning component and a second liquid storage part located on the housing, wherein the volume of the first liquid storage part is larger than the volume of the second liquid storage part.

[0009] The cleaning component includes a front roller, a rear roller, and a cleaning cloth sleeved on the front roller and the rear roller. The diameter of the front roller is smaller than the diameter of the rear roller. The upper surface of the cleaning cloth extends obliquely upward from front to back. The lower surface of the second liquid storage part is in contact with the upper surface of the housing. The lower surface of the first liquid storage part extends upward along the upper surface of the cleaning cloth to smoothly connect with the lower surface of the second liquid storage part.

[0010] The bottom of the liquid storage chamber is provided with a liquid outlet that communicates with the liquid pumping assembly. The longitudinal section of the first liquid storage part is funnel-shaped, and the nozzle of the first liquid storage part is located above the front roller, with the liquid outlet located at the lowest point of the nozzle.

[0011] The cleaning component includes a front roller, a rear roller, and a cleaning cloth sleeved on the front roller and the rear roller. The diameter of the front roller is the same as the diameter of the rear roller. The upper surface of the cleaning cloth extends horizontally. The bottom surface of the first liquid storage part is lower than the bottom surface of the second liquid storage part. The bottom surface of the second liquid storage part is in contact with the upper surface of the housing. The bottom of the liquid storage cavity is provided with a liquid outlet communicating with the liquid extraction assembly. The liquid outlet is located at the lowest point of the bottom of the first liquid storage part.

[0012] The floor brush is also equipped with a liquid dispensing component, a scraping component, and a liquid extraction component. The liquid extraction component includes a water pump. One end of the water pump is connected to the liquid dispensing component, and the other end is connected to the outlet of the water tank, so as to provide the cleaning liquid in the storage chamber to the cleaning component or the surface to be cleaned through the liquid dispensing component. The liquid dispensing component and the scraping component are located in the mounting groove on the front side of the housing, and the water pump is located inside the housing.

[0013] The housing is provided with a first adapter that is connected to the water pump. The liquid pumping assembly also includes a liquid pumping pipe located in the liquid storage chamber and connected to the liquid outlet. The bottom of the second liquid storage part is provided with a second adapter that is connected to the liquid pumping pipe. The water tank is installed on the housing. The first adapter and the second adapter are connected and communicate with each other.

[0014] The liquid storage chamber is provided with a surge stop part, which has a stop surface facing the liquid outlet side, and the stop surface is located inside the first liquid storage chamber.

[0015] The water tank is detachably connected to the shell. The top of the water tank has a handle groove, and the top of the handle groove is provided with a handle plate. The surge stop is a side plate that forms the handle groove.

[0016] The surface cleaning device also includes a body hinged to the floor brush. The rear end of the housing has a first recessed portion that is recessed forward. The hinge axis between the floor brush and the body is located in the first recessed portion. The rear end of the second liquid storage portion has a second recessed portion corresponding to the center of the second recessed portion. The second liquid storage portions located on the left and right sides of the second recessed portion extend rearward to the rear end of the housing. The outer surface of the rear cavity wall of the second liquid storage portion is aligned with the rear end of the housing. The second adapter portion is located on a protrusion located on one side of the second recessed portion and extending downward. The first adapter portion is located in a groove located on one side of the first recessed portion.

[0017] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0018] The surface cleaning device of this application, due to the structure of the liquid storage chamber, ensures that the center of gravity of the water tank is located above the cleaning component throughout the range of cleaning liquid from empty to full. When the cleaning component moves forward, the weight of the water tank and the cleaning liquid within the storage chamber compresses the cleaning component tightly against the surface to be cleaned, increasing the cleaning force and thus improving the cleaning effect. When the floor brush is dragged backward, the water tank's center of gravity, being above the cleaning component, counteracts the upward lifting torque caused by the brush's backward movement, reducing the probability of the cleaning component lifting upward. Furthermore, as cleaning progresses, regardless of changes in the amount of cleaning liquid in the tank, the tank maintains a stable downward pressure on the cleaning component, ensuring full contact between the component and the surface to be cleaned, thus improving the cleaning efficiency of the surface cleaning device, especially its ability to remove stubborn stains. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a schematic diagram of a portion of the surface cleaning device in Embodiment 1;

[0021] Figure 2 A cross-sectional view of a portion of the surface cleaning device in Embodiment 1. Figure 1 ;

[0022] Figure 3 for Figure 2 Enlarged view of part A;

[0023] Figure 4 This is a partial structural diagram of the surface cleaning device in Embodiment 1;

[0024] Figure 5 A cross-sectional view of a portion of the surface cleaning device in Embodiment 1. Figure 2 ;

[0025] Figure 6 This is a cross-sectional view of the water tank in Example 1;

[0026] Figure 7 This is a schematic diagram of the water tank and cleaning components in Example 2.

[0027] List of components and reference numerals:

[0028] 1. Floor brush, 11. Housing, 111. Mounting slot, 112. Upper housing, 113. Lower housing, 12. Suction port;

[0029] 2 cleaning components, 21 front roller, 22 rear roller, 23 cleaning cloth;

[0030] 3 water tanks, 31 liquid storage chamber, 311 first liquid storage section, 312 second liquid storage section;

[0031] 4 liquid outlet;

[0032] 5-part liquid separator;

[0033] 6. Scratching components;

[0034] 7 water pumps;

[0035] 8. First Adapter Section;

[0036] 9. Second adapter section;

[0037] 10 suction tubes;

[0038] 110 liquid outlet;

[0039] 120 surge stop section, 1201 stop surface;

[0040] 130 handle groove;

[0041] 140 buckle prototype;

[0042] 150 body;

[0043] 160 first inner recess;

[0044] 170 second inner recess

[0045] 180 accommodating cavity;

[0046] 190 staggered steps, 1901 dam stop. Detailed Implementation

[0047] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0048] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.

[0049] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0051] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0052] Example 1:

[0053] like Figure 1 , Figure 2 As shown, the surface cleaning device in this embodiment includes a floor brush 1 with a housing 11, a cleaning component 2 installed on the front side of the housing 11, and a water tank 3 detachably installed on the housing 11. The water tank 3 includes a liquid storage chamber 31 extending from the cleaning component 2 to the rear side of the housing 11. The liquid storage chamber 31 is constructed such that, in the range of the amount of cleaning liquid in the liquid storage chamber 31 from empty to full, the overall center of gravity of the water tank 3 is located above the cleaning component 2. The housing 11 includes an upper housing 112 and a lower housing 113. The upper housing 112 is fastened to the lower housing 113 to form a receiving cavity 180. The receiving cavity 180 is equipped with a water pump 7, a drive motor for driving the cleaning component 2 to rotate, and a transmission structure. The front side of the lower housing 113 is provided with a mounting groove 111. The central area below the mounting groove 111 is provided with a suction port 12. The groove wall of the mounting groove 111 forms part of the suction port 12. The mounting groove 111 is provided with a liquid distribution component 5 and a scraping assembly 6 connected and communicating with the water tank 3. The cleaning component 2 includes a roller, a cleaning cloth, and a side plate. The cleaning component 2 is installed on the housing 11 of the floor brush 1 through the side plate. The cleaning component 2 is located in front of the suction port 12. The surface cleaning device also includes a suction system and a water supply system. The water supply system includes a water tank 3 and a power component for pumping water from the water tank 3 to the liquid distribution component 5. The suction system includes a suction fan, a sludge collection bucket, and a suction channel connecting the sludge collection bucket and the suction port 12. During the surface cleaning operation, the water supply system supplies cleaning liquid to the cleaning component 2 or the surface to be cleaned through the liquid distribution component 5, wetting the cleaning component 2. The cleaning component 2 rotates under the drive of the drive motor, continuously wiping the surface to be cleaned. The scraping component 6 scrapes the dirt on the surface of the cleaning component 2. The suction fan operates to pump the surface to be cleaned and the scraped dirt into the sludge collection bucket.

[0054] The water tank 3 includes a liquid storage chamber 31 with an opening at the top and a water tank cover that covers the opening of the liquid storage chamber 31. In this embodiment, the water tank cover and the liquid storage chamber 31 are welded together. The cleaning component 2 is used to clean the surface to be cleaned. It is typically driven by a drive motor located inside the accommodating cavity 180, which rotates the cleaning component 2. The rotation of the cleaning component 2 causes the floor brush 1 to move back and forth, simultaneously cleaning the surface it passes over. During the cleaning process of the cleaning component 2, the cleaning liquid in the liquid storage chamber 31 is drawn by the water pump 7 and pumped to the distributing component 5, where it is evenly sprayed to continuously wet the cleaning component 2 or the surface to be cleaned. The cleaning component 2 cleans the surface under the action of the cleaning liquid. The type of cleaning liquid in the liquid storage chamber 31 is not limited and can be adjusted according to the degree and characteristics of contamination of the surface to be cleaned. For example, the cleaning liquid in the liquid storage chamber 31 can be water, detergent, or water with added dish soap. Furthermore, in order to improve the cleaning effect on the surface being cleaned, the cleaning solution can also be at a certain temperature, such as 60℃ to 80℃.

[0055] When a user controls the surface cleaning device to clean a surface, the floor brush 1 typically has two movement modes: forward and backward. For heavily soiled surfaces, the cleaning component 2 can be repeatedly cleaned by dragging the floor brush 1 back and forth, thus improving the cleaning effect. In this embodiment, because the liquid storage chamber 31 is designed to hold the cleaning liquid from empty to full, the center of gravity of the water tank 3 is located above the cleaning component 2. When the cleaning component 2 moves forward, the weight of the water tank 3 and the cleaning liquid in the storage chamber 31 presses the cleaning component 2 tightly against the surface, increasing the cleaning force of the cleaning component 2 and thus improving its cleaning effect. When dragging the floor brush 1 backward, because the center of gravity of the water tank 3 is above the cleaning component 2, it can counteract the upward lifting torque of the cleaning component 2 caused by the backward movement of the floor brush 1, reducing the probability of the cleaning component 2 lifting upward. Furthermore, as the cleaning work progresses, regardless of the change in the amount of cleaning liquid in the water tank 3, the water tank 3 can always exert a stable downward pressure on the cleaning component 2, ensuring that the cleaning component 2 is in full contact with the surface to be cleaned, thereby improving the cleaning efficiency of the surface cleaning device, especially its ability to remove stubborn stains.

[0056] Furthermore, when the user drags the floor brush 1 backward, the cleaning fluid in the water tank 3 will inevitably surge backward due to inertia. Since the overall center of gravity of the water tank 3 is located on the cleaning component 2, the cleaning fluid volume at the front of the liquid storage chamber 31 is larger, thus reducing the magnitude of the backward surge of cleaning fluid during movement. This ensures that the cleaning fluid can still be stably supplied to the cleaning component 2 or the surface to be cleaned under dynamic conditions of back-and-forth movement of the floor brush 1, reducing the probability of supply interruption caused by fluctuations in the cleaning fluid level, and ensuring the continuity of the cleaning process and the wetting effect of the cleaning fluid.

[0057] The surface cleaning device also includes a body 150 pivotally connected to the floor brush 1. The user holds the body 150 and applies force to it to move the floor brush 1 back and forth. In this embodiment, the center of gravity of the water tank 3 is located above the cleaning component 2, causing the overall center of gravity of the floor brush 1 to be more forward, closer to the cleaning component 2. This results in better ground contact between the floor brush 1 and the user when pulling the body 150 to move the floor brush 1 back and forth, and reduces the upward lifting force required when pulling the floor brush 1 backward, thus enhancing the user experience.

[0058] As a preferred embodiment of this example, Figure 2 As shown, the cleaning component 2 is a tracked cleaning component, including a front roller 21, a rear roller 22, and a cleaning cloth 23 sleeved on the front roller 21 and the rear roller 22. The liquid storage chamber 31 includes a first liquid storage part 311 located above the cleaning component 2 and a second liquid storage part 312 located on the housing 11. The volume of the first liquid storage part 311 is larger than the volume of the second liquid storage part 312.

[0059] The cleaning component 2 is constructed from a front roller 21, a rear roller 22, and a cleaning cloth 23, giving it a larger cleaning area and allowing for simultaneous cleaning of a larger surface area. The cleaning component 2, extending along the front-to-back direction of the floor brush 1, also provides more installation space for the water tank 3, enabling the surface cleaning device to accommodate a larger water tank 3 and improving its continuous liquid supply capacity. The outer surface of the cleaning cloth 23 has a certain tension, and an anti-interference gap exists between the second liquid storage section 312 and the outer surface of the cleaning cloth 23, reducing the probability of frictional interference between the upper surface of the cleaning cloth 23 and the bottom wall of the water tank 3.

[0060] The construction of the cleaning cloth 23 is not limited in this embodiment. In one specific example, the cleaning cloth 23 has a woven structure and its outer surface is provided with cleaning bristles to enhance the cleaning effect on the surface to be cleaned.

[0061] There are several ways to make the volume of the first liquid storage section 311 larger than the volume of the second liquid storage section 312. In this embodiment, the extension distance of the first liquid storage section 311 along the front-back direction of the floor brush 1 is greater than the extension distance of the second liquid storage section 312 along the front-back direction of the floor brush 1, and the average height inside the first liquid storage section 311 is equal to or greater than the average height inside the second liquid storage section 312. In this way, the large volume design of the first liquid storage section 311 makes it the main storage area for the cleaning fluid, while the second liquid storage section 312 serves as an auxiliary volume area, providing additional storage space without affecting the overall weight distribution, allowing the water tank 3 to maintain its capacity while still maintaining an ideal weight distribution. Because the first liquid storage section 311 has a large volume, when the floor brush 1 is dragged backward, the cleaning fluid mainly fluctuates within the first liquid storage section 311, while the narrow structure of the second liquid storage section 312 can suppress excessive backflow of the cleaning fluid, thereby reducing the impact on the liquid level at the outlet 4 and ensuring stable fluid supply.

[0062] As a preferred example of this implementation, such as Figure 2 , Figure 3 As shown, the tracked cleaning component includes a front roller 21, a rear roller 22, and a cleaning cloth 23 fitted over the front roller 21 and the rear roller 22. The diameter of the front roller 21 is smaller than the diameter of the rear roller 22, and the upper surface of the cleaning cloth 23 extends obliquely upward from front to back. The rear roller 22 of the cleaning component 2 is located below the front end of the housing 11 of the floor brush 1. The cleaning component 2 has a structure that is smaller at the front and larger at the rear. Therefore, for the internal space of the front side of the floor brush 1, the vertical space occupied by the cleaning component 2 from back to front becomes smaller and smaller. In contrast, the front end of the first liquid storage part 311 is located above the front roller 21, and the front end of the first liquid storage part 311 is roughly flush with the front end of the front roller 21. The lower surface of the first liquid storage part 311 gradually extends upward along the upper surface of the cleaning cloth 23, and smoothly connects with the lower surface of the second liquid storage part 312 at the front end of the upper housing 112. The junction point of the two is located above the rear roller 22. Specifically, the extending direction of the upper surface of the cleaning cloth 23 is parallel to the line connecting the centroids of the front roller 21 and the rear roller 22, and the extending direction of the bottom wall of the first liquid storage part 311 is parallel to the extending direction of the upper surface of the cleaning cloth 23.

[0063] In this example, the bottom surface of the first liquid storage section 311 and the upper surface of the cleaning cloth 23 extend gradually upwards from front to back. The water tank 3 can make full use of the space above the cleaning component 2, allowing the water tank 3 to fit more closely to the structure of the cleaning component 2, reducing unnecessary space occupation, and contributing to the miniaturization and flattening of the surface cleaning device. At the same time, since the cleaning cloth 23 is inclined at the front and high at the back, the inclined surface design of the bottom of the first liquid storage section 311 can utilize gravity to allow the cleaning liquid to naturally collect in the direction of the front roller 21, that is, the front end of the first liquid storage section 311.

[0064] Furthermore, since the water tank 3 is in a cantilever state when installed on the housing 11, and its center of gravity is on the front side with a large front end weight, setting the lower surface of the second liquid storage part 312 to fit against the upper surface of the housing 11 can increase the contact area between the housing 11 and the water tank 3, greatly enhance the load-bearing capacity of the housing 11 on the water tank 3, and ensure the installation stability of the water tank 3.

[0065] Furthermore, the sloping bottom shape of the first liquid storage section 311 can suppress the back-and-forth movement of the cleaning liquid to a certain extent. When the floor scrubber moves back and forth, causing the cleaning liquid in the first liquid storage section 311 to tend to surge backward under the action of inertia, part of the cleaning liquid will splash onto the sloping bottom surface of the first liquid storage section 311. The bottom surface of the first liquid storage section 311 plays a certain role in preventing the cleaning liquid from surging, stopping most of the cleaning liquid in the first liquid storage section 311, reducing the probability of the cleaning liquid in the first liquid storage section 311 surging into the second liquid storage section 312, thereby maintaining the stability of the center of gravity of the water tank 3.

[0066] Preferably, such as Figure 4 As shown, the bottom of the liquid storage chamber 31 is provided with a liquid outlet 4 that communicates with the liquid pumping assembly. The longitudinal section of the first liquid storage part 311 is funnel-shaped, and the nozzle of the first liquid storage part 311 is located above the front roller 21, with the liquid outlet 4 located at the lowest point of the nozzle.

[0067] The outlet 4 is positioned at the lowest point of the nozzle of the first liquid storage section 311. As long as there is still cleaning fluid in the first liquid storage section 311, the cleaning fluid can be drawn out by the outlet 4. The longitudinal section of the first liquid storage section 311 is funnel-shaped. Specifically, the bottom wall of the first liquid storage section 311 is flush with the upper surface of the cleaning component 2, the top surface of the first liquid storage section 311 gradually becomes an arc surface with a gradually changing curvature from front to back, the top surface of the second liquid storage section 312 is roughly flush with the bottom surface of the second liquid storage section 312, and the top surfaces of the first liquid storage section 311 and the second liquid storage section 312 are smoothly connected.

[0068] In this way, the volume of the first liquid storage section 311 gradually decreases from front to back. Whether the liquid storage chamber 31 is full of cleaning fluid or not, the cleaning fluid will accumulate at the front of the first liquid storage section 311. This further shifts the center of gravity of the water tank 3 forward, thereby further improving the overall stability of the floor brush 1. Moreover, since the outlet 4 is located at the lowest point of the nozzle and the first liquid storage section 311 is funnel-shaped, no matter how the water tank 3 shakes, the bottom of the first liquid storage section 311 can be kept full of cleaning fluid, ensuring that the outlet 4 stably supplies liquid to the outside.

[0069] Furthermore, such as Figure 4As shown, the floor brush 1 is also equipped with a liquid distribution component 5, a scraping component 6 and a liquid extraction component. The liquid extraction component includes a water pump 7. One end of the water pump 7 is connected to the liquid distribution component 5, and the other end is connected to the liquid outlet 4 of the water tank 3, so as to provide the cleaning liquid in the storage chamber 31 to the cleaning component 2 or the surface to be cleaned through the liquid distribution component 5. The liquid distribution component 5 and the scraping component 6 are located in the mounting groove 111 on the front side of the housing 11, and the water pump 7 is located inside the housing 11.

[0070] The dispensing component 5 is installed above the mounting groove 111, and the scraping assembly 6 is installed below the dispensing component 5. In a preferred embodiment, the scraping assembly 6 is fixedly connected to the dispensing component 5 and can rotate relative to the floor brush 1 to achieve contact or separation between the scraping assembly 6 and the cleaning component 2. The scraping assembly 6 can be of various types and forms; for example, it can be composed of comb teeth and scraper strips extending along the width direction of the cleaning component 2. A suction port 12 is provided at the bottom of the mounting groove 111, where dirt scraped off by the scraping assembly 6 falls downwards and is sucked in. A water pump 7 is connected to the dispensing component 5 via a water supply pipe to deliver the cleaning liquid drawn from the outlet 4 to the dispensing component 5. The dispensing component 5 has multiple dispensing ports spaced apart along the width direction of the cleaning component 2, from which the cleaning liquid flows out to spray onto the outer surface of the cleaning component 2 or flow towards the surface to be cleaned.

[0071] The arrangement of the liquid distribution component 5, the scraping assembly 6, and the water pump 7 makes full use of the space on the front and back sides of the floor brush 1, making the overall structure of the floor brush 1 more compact and optimizing the spatial layout of the floor brush 1 structure.

[0072] Specifically, inside the housing 11, there are two mounting platforms on the rear side of the corresponding mounting groove 111. The mounting platforms are provided with plug-in parts, which have plug-in grooves extending in the vertical direction. The side of the water pump 7 is provided with a plug-in protrusion extending in the vertical direction. The plug-in protrusion is located in the plug-in groove to realize the detachable connection between the water pump 7 and the mounting platform.

[0073] Preferably, such as Figure 4 As shown, the housing 11 is provided with a first adapter 8 connected to the water pump 7. The liquid extraction assembly also includes a liquid extraction pipe 10 located in the liquid storage chamber 31 and connected to the liquid outlet 4. The bottom of the second liquid storage part 312 is provided with a second adapter 9 connected to the liquid extraction pipe 10. The water tank 3 is installed on the housing 11, and the first adapter 8 and the second adapter 9 are connected and communicated.

[0074] Specifically, the second adapter 9 is installed on the bottom wall of the second liquid storage section 312, and can be fixedly connected to the bottom wall or detachably connected to the bottom wall. The second adapter 9 has an outwardly extending insertion part, and the liquid extraction tube 10 is sleeved on the insertion part to realize the communication between the liquid extraction tube 10 and the second adapter 9. When the water tank 3 is installed on the housing 11, the second adapter 9 is aligned and connected with the first adapter 8 by inserting it into the first adapter 8. With this configuration, when assembling the water tank 3, it is only necessary to assemble the water tank 3 in the preset position to realize the communication between the first adapter 8 and the second adapter 9, thereby realizing the communication between the liquid extraction tube 10 and the water pump 7. The user does not need to precisely align the positional relationship between the first adapter 8 and the second adapter 9, which helps to improve the smoothness of the user's assembly of the water tank 3.

[0075] Preferably, the outlet 4 is also provided with an outlet component 110 installed on the bottom wall of the water tank 3. One end of the liquid guide head of the outlet component 110 is connected to the liquid extraction pipe 10, and the other end extends downward to form an outlet 4 at the bottom.

[0076] As a preferred embodiment of this example, Figures 4 to 6 As shown, a surge stop part 120 is provided in the liquid storage chamber 31. The surge stop part 120 has a stop surface 1201 facing the liquid outlet 4. The stop surface 1201 is located inside the first liquid storage part 311.

[0077] By providing a surge-stopping part 120 with a stop surface 1201, when the cleaning fluid in the water tank 3 is shaken backward due to the user dragging the floor brush 1 back and forth, at least a portion of the cleaning fluid will be stopped by the stop surface 1201 and stored in the first liquid storage part 311, and will slide down the bottom wall of the first liquid storage part 311 under the action of gravity. In this way, as long as there is still cleaning fluid in the first liquid storage part 311, no matter how the floor brush 1 shakes, the stop surface 1201 can ensure that the cleaning fluid in the first liquid storage part 311 will not all flow into the second liquid storage part 312, thus ensuring the stability of the liquid supply to the water tank 3.

[0078] In this embodiment, the extension length of the stop surface 1201 along the left and right width direction of the water tank 3 is not limited. In one embodiment, the width of the stop surface 1201 is smaller than the width of the water tank 3, that is, the first liquid storage part 311 and the second liquid storage part 312 are connected through the space on both sides of the surge stop part 120. In this way, it can be ensured that the stop surface 1201 can stop the cleaning liquid in the first liquid storage part 311, and ensure that the cleaning liquid can flow between the first liquid storage part 311 and the second liquid storage part 312.

[0079] Preferably, the stop surface 1201 extends from top to bottom and obliquely along the water tank 3 from front to back.

[0080] As a preferred embodiment of this method, such as Figure 1, Figure 6 As shown, the water tank 3 is detachably connected to the shell 11. The top of the water tank 3 has a handle groove 130, and the top of the handle groove 130 is provided with a handle plate 140. The surge stop part 120 is a side plate that constitutes the handle groove 130.

[0081] The detachable connection between the water tank 3 and the housing 11 facilitates user convenience by allowing the water tank 3 to be removed for filling or cleaning. The handle groove 130 and handle plate 140 allow the user to reach into the handle groove 130 and apply force to the handle plate 140 to lift the water tank 3, reducing the difficulty of disassembling and assembling the water tank 3. The surge protector 120 is constructed as a side plate forming the handle groove 130, which helps simplify the structural design of the water tank 3 and reduce the number of components.

[0082] Specifically, the handle groove 130 can be integrally formed with the water tank 3, and the stop surface 1201 is located on the side of the surge stop part 120 away from the handle groove 130.

[0083] As a preferred embodiment of this example, Figure 4 As shown, the surface cleaning device also includes a body 150 hinged to the floor brush 1. A first recessed portion 160 is provided in the middle of the rear end of the housing 11. The hinge axis between the floor brush 1 and the body 150 is provided in the first recessed portion 160. A second recessed portion 170 is provided at the center of the rear end of the second liquid storage portion 312. The second liquid storage portions 312 located on the left and right sides of the second recessed portion 170 extend rearward to the rear end of the housing 11. The outer surface of the rear cavity wall of the second liquid storage portion 312 is aligned with the rear end of the housing 11. A second connecting portion 9 is provided on a protrusion located on one side of the second recessed portion 170 and extending downward. A first connecting portion 8 is provided in a groove located on one side of the first recessed portion 160.

[0084] Specifically, the angle between the body 150 and the floor brush ranges from 90 degrees to 180 degrees. For surfaces with limited top space, the body 150 can be rotated backward until it is parallel to the floor brush. The thickness of the body 150 is less than the thickness of the floor brush 1. As long as the floor brush 1 can pass through the space, the body 150 can also pass through to clean the surface. The first recess 160 is formed by the upper housing 112 and the lower housing 113 recessing inward in the middle of the rear side of the floor brush 1. The upper housing 112 and the lower housing 113 have hinge holes at the junction on both sides of the first recess 160. The body 150 is connected to the floor brush 1 through the hinges that pass through the two hinge holes. The rear cavity wall of the second liquid storage part 312 is separated from the rear receiving cavity 180 of the floor brush 1 by the upper housing 112, that is, the rear cavity wall of the second liquid storage part 312 abuts against the front end of the receiving cavity 180.

[0085] The body 150 serves two purposes: first, it integrates other components of the surface cleaning device, such as a waste container, which connects to the suction port 12 on the floor brush 1 via a suction pipe to temporarily store wastewater sucked in from the suction port 12; second, it provides a handle for the user to hold onto, allowing the floor brush 1 to move back and forth. The body 150 is hinged to the floor brush 1, allowing the user to adjust the angle between them to adapt to different working environments. For example, when cleaning surfaces such as under beds or tables, where height is limited, the angle between the body 150 and the floor brush 1 can be adjusted, allowing the body 150 to rotate towards the rear of the floor brush 1, reducing the space occupied on the top of the brush 1. Furthermore, the first recess 160 and the second recess 170 provide installation space for the first adapter 8 and the second adapter 9, making efficient use of the space on the floor brush 1.

[0086] Preferably, when the body 150 is upright, the rear end of the body 150 is approximately flush with or slightly protrudes from the rear end of the housing 11 in the vertical direction.

[0087] This embodiment does not limit the installation method of the drive motor, the structural form of the cleaning component, or the driving method of the drive assembly for the cleaning component. In another specific embodiment, the cleaning component has one cleaning roller, and the cleaning component has a single roller structure. The drive motor is installed on the front side of the accommodating cavity, and the drive arm of the drive motor is located inside the cleaning roller and fixedly connected to the cleaning roller. The drive motor drives the drive arm to rotate, thereby driving the cleaning component to rotate, thus realizing the driving of the cleaning component.

[0088] Example 2:

[0089] The structural difference between this embodiment two and embodiment one lies in the specific construction of the cleaning component and the water tank.

[0090] In this embodiment, as Figure 7 As shown, the tracked cleaning component includes a front roller 21, a rear roller 22, and a cleaning cloth 23 sleeved on the front roller 21 and the rear roller 22. The diameter of the front roller 21 is the same as the diameter of the rear roller 22. The upper surface of the cleaning cloth 23 extends horizontally. The bottom surface of the first liquid storage part 311 is lower than the bottom surface of the second liquid storage part 312. The bottom surface of the second liquid storage part 312 is in contact with the upper surface of the housing. The bottom of the liquid storage cavity 31 is provided with a liquid outlet 4 that communicates with the liquid extraction assembly. The liquid outlet 4 is located at the lowest point of the bottom of the first liquid storage part 311.

[0091] Specifically, in this embodiment, the cleaning component 2 is a tracked component with a horizontal upper surface. The bottom surface of the first liquid storage section 311 is relatively close to the upper surface of the cleaning component 2. At the junction of the first liquid storage section 311 and the second liquid storage section 312, the bottom wall of the second liquid storage section 312 is higher than the bottom wall of the first liquid storage section 311, forming a staggered step 190 between them. The staggered step 190 extends vertically and has a flow-stopping surface 1901 located inside the liquid storage cavity 31 and facing the first liquid storage section 311.

[0092] In this embodiment, the second liquid storage section 312 is supported by the shell, and the water tank 3 is cantilevered. The contact surface between the shell and the second liquid storage section 312 can provide a relatively stable support for the water tank 3, thereby achieving a stable installation of the water tank 3. Since the bottom surface of the first liquid storage section 311 is lower than the bottom surface of the second liquid storage section 312, when the cleaning liquid in the storage chamber tends to move backward due to the back-and-forth shaking of the water tank 3, the cleaning liquid can be largely retained in the first liquid storage section 311 due to the height difference between the first liquid storage section 311 and the second liquid storage section 312. Furthermore, the outlet is located at the lowest point of the bottom of the first liquid storage section 311. As long as there is cleaning liquid in the first liquid storage section 311, the cleaning liquid can cover the outlet to ensure a stable output of the cleaning liquid.

[0093] In this embodiment, the extension lengths of the first liquid storage section 311 and the second liquid storage section 312 along the length direction of the cleaning component are not limited, and the lengths of the first liquid storage section 311 and the second liquid storage section 312 can be the same; in order to ensure that the first liquid storage section 311 has a large liquid storage space, the length of the first liquid storage section 311 can also be greater than the length of the second liquid storage section 312.

[0094] Example 3:

[0095] The structural difference between this embodiment three and embodiment one lies in the construction of the scraping component.

[0096] In this embodiment, the floor brush further includes a rotating part installed in the mounting groove and a driving part installed in the accommodating cavity. The scraping assembly is installed in the rotating part, and the driving part can drive the rotating part to rotate, thereby causing the scraping assembly to rotate synchronously, so that the scraping assembly moves between the scraping position and the separation position. When the scraping assembly is in the scraping position, the scraping assembly abuts against the cleaning component to scrape off various dirt wrapped around the outer surface of the cleaning component; when the scraping assembly is in the separation position, there is a certain gap between the scraping assembly and the outer surface of the cleaning component, so that the dirt scraped off by the scraping assembly can fall off from the gap and be sucked into the suction channel through the suction port.

[0097] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0098] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0099] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A surface cleaning apparatus comprising a floor brush having a housing, a cleaning member mounted to a front side of the housing, and a water tank removably mounted to the housing, characterized in that, The water tank includes a liquid storage cavity extending from the top of the cleaning component to the rear side of the housing. The liquid storage cavity is configured such that, from empty to fully loaded, the overall center of gravity of the water tank is located above the cleaning component.

2. The surface cleaning device according to claim 1, characterized in that, The cleaning component is a tracked cleaning component, and the liquid storage chamber includes a first liquid storage section located above the tracked cleaning component and a second liquid storage section located on the housing, wherein the volume of the first liquid storage section is larger than the volume of the second liquid storage section.

3. The surface cleaning device according to claim 2, characterized in that, The tracked cleaning component includes a front roller, a rear roller, and a cleaning cloth sleeved on the front roller and the rear roller. The diameter of the front roller is smaller than the diameter of the rear roller. The upper surface of the cleaning cloth extends obliquely upward from front to back. The lower surface of the second liquid storage part is attached to the upper surface of the housing. The lower surface of the first liquid storage part extends upward along the upper surface of the cleaning cloth to smoothly connect with the lower surface of the second liquid storage part.

4. The surface cleaning device according to claim 3, characterized in that, The bottom of the liquid storage chamber is provided with a liquid outlet that communicates with the liquid pumping assembly. The longitudinal section of the first liquid storage part is funnel-shaped, and the nozzle of the first liquid storage part is located above the front roller, with the liquid outlet located at the lowest point of the nozzle.

5. The surface cleaning device according to claim 2, characterized in that, The tracked cleaning component includes a front roller, a rear roller, and a cleaning cloth sleeved on the front roller and the rear roller. The diameter of the front roller is the same as the diameter of the rear roller. The upper surface of the cleaning cloth extends horizontally. The bottom surface of the first liquid storage part is lower than the bottom surface of the second liquid storage part. The bottom surface of the second liquid storage part is in contact with the upper surface of the housing. The bottom of the liquid storage cavity is provided with a liquid outlet communicating with the liquid extraction assembly. The liquid outlet is located at the lowest point of the bottom of the first liquid storage part.

6. The surface cleaning apparatus according to claim 3 or 5, characterized in that, The floor brush is also equipped with a liquid dispensing component, a scraping component, and a liquid extraction component. The liquid extraction component includes a water pump. One end of the water pump is connected to the liquid dispensing component, and the other end is connected to the outlet of the water tank, so as to provide the cleaning liquid in the storage chamber to the cleaning component or the surface to be cleaned through the liquid dispensing component. The liquid dispensing component and the scraping component are located in the mounting groove on the front side of the housing, and the water pump is located inside the housing.

7. The surface cleaning device according to claim 6, characterized in that, The housing is provided with a first adapter that is connected to the water pump. The liquid pumping assembly also includes a liquid pumping pipe located in the liquid storage chamber and connected to the liquid outlet. The bottom of the second liquid storage part is provided with a second adapter that is connected to the liquid pumping pipe. The water tank is installed on the housing. The first adapter and the second adapter are connected and communicate with each other.

8. The surface cleaning apparatus according to claim 4 or 5, characterized in that, The liquid storage chamber is provided with a surge stop part, which has a stop surface facing the liquid outlet side, and the stop surface is located inside the first liquid storage chamber.

9. The surface cleaning device according to claim 8, characterized in that, The water tank is detachably connected to the shell. The top of the water tank has a handle groove, and the top of the handle groove is provided with a handle plate. The surge stop is a side plate that forms the handle groove.

10. The surface cleaning apparatus according to claim 7, characterized in that, The surface cleaning device also includes a body hinged to the floor brush. The rear end of the housing has a first recessed portion that is recessed forward. The hinge axis between the floor brush and the body is located in the first recessed portion. The rear end of the second liquid storage portion has a second recessed portion corresponding to the center of the second recessed portion. The second liquid storage portions located on the left and right sides of the second recessed portion extend rearward to the rear end of the housing. The outer surface of the rear cavity wall of the second liquid storage portion is aligned with the rear end of the housing. The second adapter portion is located on a protrusion located on one side of the second recessed portion and extending downward. The first adapter portion is located in a groove located on one side of the first recessed portion.

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