Water tank, cleaning head and cleaning tool

Abstract

This invention discloses a water tank, a cleaning head, and a cleaning tool. The water tank includes a tank body with two side walls, a rear wall, a bottom wall, a top wall, a front wall, and a partition. The partition divides the internal space of the water tank body into an upper clear water chamber and a lower wastewater chamber. The top wall has a water inlet communicating with the clear water chamber and at least one wastewater outlet near one side wall. The wastewater outlet communicates with the wastewater chamber through a wastewater discharge channel that penetrates and is isolated from the clear water chamber. The front wall has a wastewater inlet higher than the partition, which communicates with the wastewater chamber through a wastewater discharge channel that penetrates and is isolated from the clear water chamber. Wastewater squeezed out from the cleaning roller can flow into the wastewater chamber through the wastewater inlet. The front wall, below the partition, has multiple clear water droplet outlets that can drip clear water onto the surface of the cleaning roller. The cleaning head includes the water tank and a cleaning head housing assembly consisting of a housing body and a cleaning head cover. The cleaning tool includes the cleaning head, a hinge head assembly, a connecting rod assembly, and a handle assembly.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and more particularly to a water tank, a cleaning head, and a cleaning tool. Background Technology

[0002] In existing technologies, the water tank assembly is generally inserted horizontally into the cleaning head of the floor scrubber or clipped vertically onto the upright of the floor scrubber. This results in the floor scrubber being very heavy, making it too cumbersome for users to push and pull the floor scrubber for cleaning. When emptying wastewater or adding clean water, users also need to remove the water tank to replenish the water and then reinstall it on the cleaning head or upright, which is very inconvenient. To address this, the applicant's Chinese patent applications CN121040798A, CN120938290A, and CN121015094A disclose a method that utilizes a portion of the cleaning head's housing as a water tank, incorporating an overflow preventer within the housing to prevent wastewater from flowing back to the cleaning roller surface via agitation. While this solution reduces the weight of the cleaning head and the entire floor scrubber, the inclusion of a water pump within the cleaning head's hinge head inevitably leads to high power consumption and noise during operation. Furthermore, since the water tank is integrated with the cleaning head's housing, users cannot remove it for thorough cleaning. Therefore, there is an urgent need for a technical solution that allows for a lighter and more ergonomic cleaning tool, a cleaning head solution that reduces noise and power consumption during operation, and a water tank solution that is lightweight and easily removable from the cleaning head. Summary of the Invention

[0003] This application provides a water tank, a cleaning head, and a cleaning tool. It utilizes the kinetic energy generated by the user's high-speed pushing and pulling of the cleaning head to spontaneously provide "self-circulating hydrodynamic power" for the agitation of clean water and wastewater in the cleaning head and water tank. This achieves cleaning of the cleaning roller surface without any additional power to drive water flow. While achieving "water and dust circulation," it reduces the operating noise and power consumption of the cleaning head in existing surface cleaners, and also makes the cleaning tool lighter and easier to operate. To further reduce the power consumption of the surface cleaner, the kinetic energy generated during the pushing and pulling of the cleaning head allows the clean water in the clean water chamber of the water tank to be supplied to the cleaning roller surface through "self-circulating hydrodynamic power." Simultaneously, the wastewater squeezed out from the cleaning roller surface also flows back into the wastewater chamber of the water tank through "self-circulating hydrodynamic power." The water tank is lightweight and easily removed from the cleaning head. The specific technical solution is as follows:

[0004] In a first aspect, this application provides a water tank, including a water tank body. The water tank body has two side walls, a rear wall, a bottom wall, a top wall, a front wall, and a partition. The partition divides the internal space of the water tank body into a clear water chamber located in the upper layer and a sewage chamber located in the lower layer. The top wall has a water inlet connected to the clear water chamber and at least one sewage outlet near one side wall. The sewage outlet is connected to the sewage chamber through a sewage discharge channel that penetrates through and is isolated from the clear water chamber. The front wall has a sewage inlet higher than the partition. The sewage inlet is connected to the sewage chamber through a sewage discharge channel that penetrates through and is isolated from the clear water chamber. Sewage squeezed out from the cleaning roller can pass through the sewage inlet and flow into the sewage chamber along the sewage discharge channel. The front wall has a plurality of clear water droplet outlets located below the partition, which can drip clear water onto the surface of the cleaning roller.

[0005] In one or more alternative embodiments, the water tank is arranged laterally within the shell body, and the two side walls, rear wall, and bottom wall of the water tank body are closed on all four sides.

[0006] In one or more alternative embodiments, a transverse partition is provided in the middle of the housing body, which divides the housing body into an upper water tank placement area and a lower dry waste holding area. The water tank is a rectangular block adapted to the water tank placement area, and the water tank body can be loaded into / removed from the housing body of the cleaning head after the cleaning head cover is opened.

[0007] In one or more alternative embodiments, the housing body includes a left side wall and a right side wall for holding a cleaning roller, and a squeezing roller for rolling and squeezing the cleaning roller is also held on the left side wall and the right side wall above the cleaning roller.

[0008] In one or more alternative embodiments, the housing body is provided with a water guide portion connecting the left side wall and the right side wall. The cross section of the water guide portion is an arc shape adapted to the surface of the cleaning roller. The root of the water guide portion is closed and connected to the side of the transverse partition facing the cleaning roller. The water guide tip at the front end of the water guide portion contacts the surface of the cleaning roller. The upper surface of the water guide portion can guide away the sewage squeezed out from the surface of the cleaning roller.

[0009] In one or more alternative embodiments, the upper surface of the water guide extends upward to form a water tank retaining flange, the wastewater inlet is an elongated strip parallel to the axis of the extrusion roller, the lower edge of the wastewater inlet is lower than the highest point of contact between the water guide tip and the surface of the cleaning roller, and the top surface of the water tank retaining flange is lower than the lower edge of the wastewater inlet.

[0010] In one or more alternative embodiments, a wastewater storage tank is formed between the water guide tip and the water tank clamp flange, and the cross-section of the wastewater storage tank is V-shaped.

[0011] In one or more alternative embodiments, the wastewater squeezed out by the squeezing roller flows down along the guide tip. When the wastewater storage tank is full or when the user quickly pushes the cleaning head, the wastewater can pass through the wastewater inlet and flow into the wastewater chamber along the wastewater inlet channel.

[0012] In one or more alternative embodiments, the water tank body can be inserted into / removed from the housing body of the cleaning head after the cleaning head cover is opened. The lower surface of the cleaning head cover is provided with a sewage overflow flange with a shape corresponding to the sewage discharge port. After the cleaning head cover is closed, the sewage overflow flange can block the sewage discharge port.

[0013] In one or more alternative embodiments, the lower surface of the cleaning head cover is provided with a water-proof flange with a shape corresponding to the handle hole at the location corresponding to the water injection hole. After the cleaning head cover is closed, the water-proof flange can block the handle hole.

[0014] In one or more alternative embodiments, the top wall of the water tank body is provided with a handle hole, which is connected to the sewage channel; after opening the cleaning head cover, the user can hook the handle hole with his hand to remove the water tank.

[0015] In one or more alternative embodiments, the lower surface of the cleaning head cover is provided with a waterproof flange corresponding to the handle hole. After the cleaning head cover is closed, the waterproof flange can seal the handle hole.

[0016] In one or more alternative embodiments, a first step is provided on the front wall of the water tank body. The first step is located closer to the front end of the cleaning roller and the squeezing roller, and the sewage outlet is located on the outer surface of the first step.

[0017] The outer surface of the first step, the outer surface of the water tank clamp flange, the upper surface of the water guide tip, the surface of the cleaning roller located between the water guide tip and the squeezing roller, the outer surface of the squeezing roller section, and the lower surface of the cleaning head cover section together form a water tank.

[0018] In one or more alternative embodiments, a second step is provided on the front wall of the water tank body. The first step is further away from the cleaning roller and the squeezing roller. A snap-fit ​​groove is provided at the connection between the first step and the second step. The inner surface of the snap-fit ​​edge of the water tank abuts against the outer surface of the second step, and the top surface of the snap-fit ​​edge of the water tank abuts against the lower surface of the snap-fit ​​groove.

[0019] In one or more alternative embodiments, a third step is provided on the front wall of the water tank body. A gap space is left between the outer surface of the third step and the inner surface of the water tank clamping edge. A drip wall parallel to the top wall of the water tank body is connected at the connection between the second step and the third step. The drip wall is provided with multiple drip holes and a vent column extending to the top of the clear water chamber. The vent column connects the clear water chamber and the gap space.

[0020] In one or more alternative embodiments, a plurality of water seepage grooves are provided on the water guide portion away from the water tank flange and the water guide tip along a direction parallel to the axis of the cleaning roller. The clean water in the clean water chamber drips through the drip hole into the gap space and then continues to pass through the water seepage grooves to continue to wet the surface of the cleaning roller.

[0021] In one or more alternative embodiments, the rotational hinge point between the cleaning head cover and the two side walls is located on the inner surface of the two side walls at the top corner of the water tank placement area away from the cleaning roller. In order to avoid the rotational hinge point and the lower edge of the cleaning head cover extending into the water tank placement area after opening, an avoidance notch is provided at the top corner of the rear wall and the top wall of the water tank body, so as to enable the water tank to maximize the use of the effective volume of the water tank placement area to accommodate clean water and sewage.

[0022] In one or more alternative embodiments, the top wall of the water tank body extends forward beyond the front wall of the water tank body by a water tank awning, which extends all the way to above the extrusion roller.

[0023] In one or more alternative embodiments, after opening the cleaning head cover, the user can simultaneously rotate the water tank diagonally upwards through the handle hole and the frontmost end of the water tank guard to remove it.

[0024] Secondly, this application provides a cleaning head, comprising:

[0025] The cleaning head housing assembly includes a housing body and a cleaning head cover. The housing body includes a left side wall and a right side wall for holding a cleaning roller. Above the cleaning roller, the left side wall and the right side wall also hold a squeezing roller that can roll and squeeze the cleaning roller. One side wall is fixedly connected to a hinge seat, which is hinged to one end of a drive motor assembly. The output end of the other end of the drive motor assembly is engaged with the other side wall. The cleaning roller is sleeved on the drive motor assembly, and the output end couples and drives the cleaning roller to rotate and scrub the surface to be cleaned. The housing body is provided with a water guide part connecting the left side wall and the right side wall. The cross section of the water guide part is an arc shape adapted to the surface of the cleaning roller. The water guide tip at the front end of the water guide part contacts the surface of the cleaning roller. The squeezing roller is rotatably engaged between the two side walls, squeezing the upper surface of the cleaning roller and is eccentrically positioned relative to the cleaning roller and close to the water guide tip.

[0026] The water tank as described in the first aspect.

[0027] Thirdly, this application provides a cleaning tool, comprising:

[0028] The cleaning head as described in the second aspect;

[0029] The hinge head assembly is pivotally mounted at the rear of the housing body and can rotate about an axis parallel to the cleaning roller, forming an angle of 85°-180° with the cleaning head.

[0030] The connecting rod assembly connects to the hinge head assembly and continues to connect the drive motor assembly to the external power supply;

[0031] The handle assembly is connected to one end of the connecting rod assembly. The handle assembly has a start / stop button and a built-in control board that can control the operation of the motor in the drive motor assembly.

[0032] In one or more alternative embodiments, the cleaning head further includes:

[0033] The trash can can be inserted into / removed from the cleaning head housing body through the lower part of one side wall. The rotating cleaning roller can carry the trash into the trash can while wiping the floor.

[0034] In one or more alternative embodiments, the cleaning head further includes:

[0035] The detachable shovel assembly is detachably connected to the lower edge of the cleaning head housing near the cleaning roller, close to the surface to be cleaned, and located between the cleaning roller and the dustbin; the side of the detachable shovel assembly close to the cleaning roller is curved to match the surface of the cleaning roller.

[0036] In one or more alternative embodiments, the hinge head assembly has a built-in water pump that drives water to flow from the water tank assembly to the cleaning roller. The hinge head assembly electrically connects the water pump to the control board via a connecting rod assembly. The control board can control the operation of the water pump, which can draw water from the water tank and spray clean water directly onto the surface of the cleaning roller through a clean water outlet on one of its side walls to provide a greater water flow rate to wash the surface of the cleaning roller.

[0037] The beneficial effects of the above-mentioned technical solution of this application include at least the following:

[0038] This application provides a water tank, which includes a tank body. The tank body has two side walls, a rear wall, a bottom wall, a top wall, a front wall, and a partition. The partition divides the internal space of the tank body into a clear water chamber in the upper layer and a sewage chamber in the lower layer. The top wall has a water inlet that connects to the clear water chamber and at least one sewage outlet near one side wall. The sewage outlet connects to the sewage chamber through a sewage discharge channel that penetrates through and is isolated from the clear water chamber. The front wall has a sewage inlet that is higher than the partition. The sewage inlet connects to the sewage chamber through a sewage discharge channel that penetrates through and is isolated from the clear water chamber. Sewage squeezed out from the cleaning roller can flow into the sewage chamber through the sewage inlet. The front wall has multiple clear water droplet outlets that can drip clear water onto the surface of the cleaning roller at a position lower than the partition. The water tank, along with the cleaning head housing, squeezing roller, and cleaning roller, is divided into upper and lower layers—a clear water chamber and a wastewater chamber—by a partition. The water in the clear water chamber utilizes gravity and the kinetic energy generated by the user's high-speed pushing and pulling of the cleaning head to automatically flow from the clear water outlet to rinse the cleaning roller, and then automatically flow back to the wastewater chamber from the wastewater inlet, forming a complete self-circulating hydrodynamic cleaning head. To empty the wastewater, the user simply rotates to open the cleaning head cover, then uses the handle of the cleaning tool to rotate the cleaning head around one side wall. The cleaned cleaning head naturally tilts the water tank, which is placed horizontally on the cleaning head housing. The tilted tank then allows the wastewater to flow out from the wastewater outlet near one side wall. After emptying the wastewater chamber by tilting the cleaning head, the user simply uses the handle to level the cleaning head and fills the clear water chamber with water through a faucet or other water filling tool. This water tank provides users with an easy experience of emptying clean wastewater and refilling it with clean water without having to bend over to remove it, improving the convenience of using water-dust circulation cleaning tools.

[0039] This application provides a self-circulating hydrodynamic cleaning head. The cleaning head housing includes a water guide tip, a water tank retaining flange, a front side plate of the water tank, a squeezing roller, and a cleaning roller. These components enclose a water tank space. Wastewater guided by the water guide tip can only flow unidirectionally from the water tank space through the wastewater inlet to the wastewater chamber. Simultaneously, the squeezing roller and the cleaning roller form an interference fit, allowing the squeezing roller to squeeze the cleaning roller, expelling the wastewater absorbed by the cleaning roller and containing it in the water tank space. The wastewater then flows unidirectionally to the wastewater chamber through the wastewater inlet. The clean water chamber is located in the upper layer of the water tank, and the wastewater chamber is located in the lower layer. Even when the user quickly pushes and pulls the water-dust circulation cleaning head for cleaning, the wastewater agitates in the wastewater chamber but cannot enter the clean water chamber, preventing the wastewater from splashing back onto the cleaning roller surface due to agitation and affecting cleaning efficiency. Because the squeezing roller is positioned eccentrically on the cleaning roller, and the water tank space is located above the cleaning roller, when the cleaning roller is in an unsaturated state, a gap may form between the squeezing roller and the cleaning roller. The seeping sewage will flow down from the cleaning roller or into the closed water tank space under the action of gravity, preventing it from dripping onto the surface to be cleaned and thus affecting the cleanliness.

[0040] By rationally designing the structure of the "self-circulating hydrodynamic" cleaning head, the water tank assembly is directly connected to the cleaning head housing, and the clean water chamber and wastewater chamber are arranged laterally and isolated inside the cleaning head, rather than being suspended on a pole or inserted at a high position. This layout lowers the overall center of gravity of the machine, reduces the overall height of the cleaning head and the vertical load, and compared with existing technologies, allows the cleaning tool to have a lighter operating feel and improves the user experience. A wastewater pouring port and wastewater pouring channel are provided on one side of the wastewater chamber, running through the clean water chamber. When the clean water in the clean water chamber is used up, the wastewater chamber is full. Users only need to open the cleaning head cover and tilt the cleaning head towards the wastewater pouring port to pour out the wastewater without removing the water tank. After the wastewater is poured out, clean water can be directly poured into the clean water inlet through the tap. The process of emptying wastewater and adding clean water is convenient and quick for users.

[0041] The embodiments of this invention eliminate the independent brush roller and its driving mechanism found in traditional cleaning heads. Instead, they rely solely on the interaction between the cleaning roller and the squeezing roller to physically squeeze and recycle wastewater. This eliminates the additional power load and avoids the extra power consumption and noise issues caused by the brush roller drive, effectively reducing the power consumption and noise of the cleaning tool during operation. The cleaning roller simultaneously performs cleaning and wastewater adsorption functions, while the squeezing roller replaces the scraping function of the brush roller, resulting in a simpler structure.

[0042] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0043] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a 3D view of the water tank assembly;

[0045] Figure 2 Another perspective 3D view of the water tank assembly;

[0046] Figure 3 for Figure 2 Sectional view along direction D in the middle;

[0047] Figure 4 for Figure 2 Sectional view along direction E in the middle;

[0048] Figure 5 for Figure 2 Sectional view along direction F in the middle;

[0049] Figure 6 for Figure 4 Sectional view along direction G in the middle;

[0050] Figure 7 for Figure 4 H-direction sectional view in the middle;

[0051] Figure 8 for Figure 4 Sectional view along direction I in the middle;

[0052] Figure 9 for Figure 4 The J-direction sectional view in the diagram.

[0053] Figure 10 A perspective view of an embodiment of the cleaning tool;

[0054] Figure 11 Another perspective view of an embodiment of the cleaning tool;

[0055] Figure 12 Rear view of the cleaning head portion of an embodiment of the cleaning tool;

[0056] Figure 13 For cleaning heads with hinge head assemblies installed Figure 11 Sectional view along direction A in the middle;

[0057] Figure 14 for Figure 13 Sectional view along direction B in the middle;

[0058] Figure 15 for Figure 14 A stepped sectional view along direction C;

[0059] Figure 16 An exploded view of the cleaning head with the hinge head assembly installed;

[0060] Figure 17 Another exploded view of the cleaning head with the hinge head assembly installed;

[0061] Figure 18 Another exploded view of the cleaning head with the hinge head assembly installed;

[0062] Figure 19 Another exploded view of the cleaning head with the hinge head assembly installed;

[0063] Figure 20 An exploded view of another embodiment of a cleaning head with a hinge head assembly installed;

[0064] Figure 21 Another embodiment of a cleaning head with a hinge head assembly installed. Figure 11Sectional view along direction A in the middle;

[0065] Explanation of reference numerals in the attached figures:

[0066] 10. Cleaning head;

[0067] 10A, Drive motor assembly; 10A1, Drive gear; 10B, Cleaning roller;

[0068] 110. Shell body; 110a1. Left side wall; 110a2. Right side wall; 1101. Water seepage groove (hole); 110a7. Water guide tip; 110a8. Water tank retaining flange; 110b. Detachable shovel assembly; 110b1. Shovel body; 110b2. Reinforcing plate; 110c. Extrusion roller; 110d1. Left side sliding retaining block of extrusion roller; 110d2. Right side sliding retaining block of extrusion roller; 110d3. Driven gear set; 110e. Wear-resistant ring of cleaning roller end button; 110f. Cleaning head cover; 110p. Left side decorative sticker; 110q. Right side decorative sticker;

[0069] 120. Clean the rear housing of the head;

[0070] 130. Auxiliary wheel;

[0071] 140. Trash can assembly;

[0072] 150, Hinge head pivot engagement assembly; 150a, Hinge head pivot engagement body; 150b, Hinge head pivot engagement end cap;

[0073] 20. Connecting rod assembly;

[0074] 30. Handle upper lever assembly;

[0075] 40. Hinge head assembly; 40A. Water pump; 40B. Hinge head electrical connector; 401. Hinge head upper shell; 402. Hinge head lower shell; 403. Locking tongue; 404. Locking tongue support; 405. Locking button support; 406. Locking button assembly;

[0076] 50. Water tank; 50a. Sewage discharge port; 50b. Clean water inlet; 50c. Water tank handle hole;

[0077] M, wastewater chamber; P, clean water chamber;

[0078] 500. Water tank body;

[0079] 503, First step; 503a, Sewage inlet;

[0080] 502, Second step; 502a, Vent hole; 502b, Drip hole; 502c, Drip hole; Q, Vent column

[0081] 501, the third step;

[0082] 504. Avoid the gap;

[0083] 505. Water tank eaves;

[0084] N, dry waste container; S, wastewater storage tank; θ, squeezing roller inclination angle. Detailed Implementation

[0085] The claims of the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of the present invention.

[0086] It should be understood that, in the description of the embodiments of the present invention, all directional indicating terms, such as "up," "down," "left," "right," "front," and "back," indicate the orientation or positional relationship based on the orientation and positional relationship shown in the accompanying drawings or the orientation or positional relationship commonly used when the product is in use. These terms are merely for the purpose of simplifying the description of the present invention and do not explicitly or implicitly suggest that the device, element, or component referred to must have a specific orientation or specific orientational structure, and should not be construed as a limitation of the present invention. They are only used to explain the relative positional relationships and movements between the components shown in the accompanying drawings. When this specific orientation changes, the directional indication may also change accordingly.

[0087] Furthermore, in this invention, ordinal numbers such as "first" and "second" are used for distinguishing purposes only and should not be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, the features referred to as "first" and "second" may explicitly or implicitly include at least one of those technical features. In the description of this invention, "a plurality of" means at least two, i.e., two or more, unless otherwise expressly defined; "at least one" means one or more.

[0088] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-in" should be interpreted broadly. For example, they can refer to a relatively fixed positional relationship between components, or a physically fixed connection between components; they can be detachable connections or integral structures; they can be mechanical connections or electrical signal connections; they can be direct connections or indirect connections through intermediate media or components; they can refer to the internal communication of two elements or the interaction between two elements. Unless otherwise explicitly limited in the specification, other interpretations will not achieve the corresponding functions or effects. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0089] The present invention will be further described below with reference to specific embodiments, but these are not intended to limit the scope of the invention.

[0090] In a first aspect, this application provides an embodiment of a water tank.

[0091] See Figures 1-21 This embodiment provides a water tank 50, which is installed in the housing body 110 of the cleaning head 10. The water tank 50 includes a water tank body 500, which can be inserted into / removed from the housing body 110 of the cleaning head 10 after the cleaning head cover 110f is opened. The water tank body 500 is provided with a partition (not shown in the attached figure) to divide the internal space into a clean water chamber P located in the upper layer and a wastewater chamber M located in the lower layer. The water tank body 500 is closed on all six sides. The top wall of the water tank body (not shown in the attached figure) is provided with a water inlet 50b that communicates with the clean water chamber P. A wastewater outlet 50a is provided on the top wall of the water tank body near one side wall. The wastewater outlet 50a is connected to the clean water chamber through a through-hole. The wastewater discharge channel (not shown in the attached diagram) isolated from the water cavity P is connected to the wastewater cavity M. The front wall of the water tank body (not shown in the attached diagram) is provided with a wastewater inlet 503a. The wastewater inlet 503a is connected to the wastewater cavity M through the wastewater discharge channel (not shown in the attached diagram) that is through and isolated from the clean water cavity P. The wastewater squeezed out from the cleaning roller 10B can pass through the wastewater inlet 503a and flow into the wastewater cavity M along the wastewater discharge channel. Multiple clean water droplet outlets (502b, 502c) are evenly distributed along the axial direction of the cleaning roller on the front wall of the water tank body at a position lower than the wastewater inlet 503a and higher than the partition. The clean water dripping from the clean water droplet outlets (502b, 502c) can wet the surface of the cleaning roller 10B.

[0092] In one or more alternative embodiments, such as Figure 1-9As shown, the water tank body 500 is equipped with a partition (not shown in the attached drawing) that divides the internal space of the water tank body into a clear water chamber P located in the upper layer and a sewage chamber M located in the lower layer. The clear water chamber P and the sewage chamber M are completely isolated from each other. The clear water chamber P contains the injected clear water, and the sewage chamber M collects the sewage that is squeezed out from the cleaning roller 10B and flows into the sewage chamber M through the sewage inlet 503a and the sewage inlet channel. The water tank body 500 is closed on all six sides. The top wall of the water tank body (not shown in the attached drawing) is provided with a water inlet 50b that connects to the clear water chamber P. The top wall of the water tank body is provided with a sewage outlet 50a near one side wall. The sewage outlet 50a is connected to the sewage chamber M through a sewage outlet channel (not shown in the attached drawing) that penetrates through and is isolated from the clear water chamber P. The front wall of the water tank body (not shown in the attached drawing) is provided with a sewage inlet 503a, which is connected to the sewage chamber M through a sewage outlet channel (not shown in the attached drawing) that penetrates through and is isolated from the clear water chamber P.

[0093] In one or more alternative embodiments, such as Figure 13 , Figure 15 As shown, the housing body 110 is provided with a water guide tip 110a7, a water tank retaining flange 110a8, a water tank front side plate (not shown in the attached figure), a squeezing roller 110c, and a cleaning roller 10B, which together form a water tank space (not shown in the attached figure). The sewage guided by the water guide tip 110a7 can only flow unidirectionally from the water tank space through the sewage inlet 503a to the sewage chamber M. At the same time, the squeezing roller 110c and the cleaning roller 10B form an interference fit, which can realize the squeezing roller 110c squeezing the cleaning roller 10B to squeeze out the sewage absorbed in the cleaning roller 10B, and after being contained in the water tank space, it flows unidirectionally to the sewage chamber M through the sewage inlet 503a. The clean water chamber P is located in the upper layer of the water tank 50, and the sewage chamber M is located in the lower layer of the water tank 50.

[0094] This design, featuring a cleaning head 10 with a built-in water tank 50, allows for efficient water and wastewater circulation even without a pump to enhance the flow of clean and wastewater. The kinetic energy generated by the user pushing and pulling the cleaning head 10, which applies to the clean water in the tank 50 and the wastewater squeezed out of the water tank space, creates agitation. This agitation causes clean water to drip evenly from the clean water chamber P onto the surface of the cleaning roller 10B. After the clean water fully wets the surface of the cleaning roller 10B, as it rotates, the wastewater is squeezed out by the squeezing roller 110c. The wastewater then flows through the guide tip 110a7 into the water tank space. The wastewater in the water tank space, agitated by the agitation, flows through the wastewater inlet 503a into the wastewater chamber M, thus completing a full "self-circulating hydrodynamic" clean and wastewater circulation process: clean water chamber - cleaning roller - squeezing roller - water tank space - wastewater inlet - wastewater chamber. The applicant refers to the above-described clean and wastewater circulation process as a "self-circulating hydrodynamic" clean and wastewater flow process.

[0095] On the other hand, even when the user quickly pushes and pulls the cleaning head 10 to clean, the sewage agitates in the sewage chamber M but cannot enter the clean water chamber P. This prevents the sewage from splashing back onto the surface of the cleaning roller 10B due to agitation, thus affecting the cleaning efficiency. Since the squeezing roller 110c is positioned eccentrically on the cleaning roller 10B, and the water tank space is located above the cleaning roller 10B, when the cleaning roller 10B is in an unsaturated state, a gap may form between the squeezing roller 110c and the cleaning roller 10B. Under the action of gravity, the seeping sewage flows down from the surface of the cleaning roller 10B or into the water tank space, and then flows unidirectionally to the sewage chamber M through the sewage inlet 503a, preventing it from dripping onto the surface to be cleaned and thus affecting the cleanliness.

[0096] This application proposes several specific ways in which the water tank 50 and the housing body 110 of the cleaning head 10 are matched, as detailed in the following more specific embodiments.

[0097] In one or more alternative embodiments, such as Figure 1 , Figure 13 , Figures 15-21 As shown, the water tank 50 is arranged laterally within the housing body 110, allowing the clean water chamber P of the water tank 50 to extend fully along the axial direction of the cleaning roller 10B to accommodate more clean water. It also allows multiple clean water droplets evenly distributed on the front wall of the water tank body along the axial direction of the cleaning roller 10B to drip clean water evenly onto the surface of the cleaning roller 10B. Furthermore, it allows the wastewater chamber M of the water tank 50 to extend fully along the axial direction of the cleaning roller 10B to accommodate more wastewater. The water tank, which is parallel to the axial direction of the cleaning roller and close to its surface, minimizes the path for clean water to drip from the clean water chamber to the surface of the cleaning roller, and minimizes the path for wastewater squeezed out from the surface of the cleaning roller to reach the wastewater chamber through the water tank space, wastewater inlet, and wastewater inlet channel. This achieves the highest efficiency of the "self-circulating hydrodynamic" clean and wastewater flow, thereby improving cleaning efficiency.

[0098] In one or more alternative embodiments, such as Figures 10-20 As shown, the housing body 110 includes a left side wall 110a1 and a right side wall 110a2 that can hold the cleaning roller. A squeezing roller 110c that can roll and squeeze the cleaning roller 10B is also held on the two side walls (110a1, 110a2) above the cleaning roller 10B. The housing body is provided with a water guide part (not shown in the figure) connecting the two side walls. The cross section of the water guide part is an arc shape that adapts to the surface of the cleaning roller. The water guide tip 110a7 at the front end of the water guide part contacts the surface of the cleaning roller. The upper surface of the water guide part can guide the sewage squeezed out from the surface of the cleaning roller away.

[0099] In one or more alternative embodiments, such as Figure 1 , Figure 2 , Figure 13 , Figure 15 , Figure 21As shown, the upper surface of the water guide extends upward to form a water tank retaining flange 110a8. The wastewater inlet 503a is an elongated strip parallel to the axis of the extrusion roller. The lower edge of the wastewater inlet (not shown in the attached diagram) is lower than the highest point of contact between the water guide tip 110a7 and the surface of the cleaning roller, and the top surface of the water tank retaining flange (not shown in the attached diagram) is lower than the lower edge of the wastewater inlet. This design allows the lower edge of the wastewater inlet to be raised as high as possible through the top surface of the water tank retaining flange, approaching the highest point of contact between the water guide tip and the surface of the cleaning roller. This increases the difficulty of "the wastewater in the wastewater chamber surging upward as the cleaning head is pushed and pulled, then flowing back through the wastewater inlet 503a, and then flowing upward along the upper surface of the water guide tip 110a7 back to the starting point where the wastewater was just squeezed out by the extrusion roller 110c." To put it another way, even if the sewage in the sewage chamber "flows upstream" back to the starting point where it was squeezed out by the squeezing roller 110c during the turbulence, the sewage that is just about to "rush" onto the top of the guide tip 110a7 will be "flowed downstream" by the sewage that was just squeezed out along the upper surface of the guide tip 110a7.

[0100] In one or more alternative embodiments, such as Figure 13 , Figure 15 , Figure 21 As shown, a wastewater storage trough S is formed between the water guide tip 110a7 and the water tank retainer edge 110a8, and the cross-section of the wastewater storage trough is V-shaped. This design allows the wastewater squeezed out by the squeeze roller 110c to flow more easily down the upper surface of the water guide tip 110a7. The wastewater storage trough S formed between the water guide tip 110a7 and the water tank retainer edge 110a8 can prevent wastewater from flowing into the gap between the water tank 50 and the shell body 110 through any path other than the wastewater inlet 503a.

[0101] In one or more alternative embodiments, such as Figure 13 , Figure 15 , Figure 21 As shown, the wastewater squeezed out by the squeezing roller 110c flows downward along the guide tip 110a7. When the wastewater storage tank S is full or when the user quickly pushes the cleaning head, the wastewater can pass through the wastewater inlet 503a and flow into the wastewater chamber M along the wastewater inlet channel. This design allows the wastewater squeezed out by the squeezing roller 110c to flow more easily down the upper surface of the guide tip 110a7. The wastewater storage tank S formed between the guide tip 110a7 and the water tank retaining edge 110a8 can prevent wastewater from flowing into the gap between the water tank 50 and the housing body 110 through any path other than the wastewater inlet 503a.

[0102] This application proposes several specific ways of cooperating between the water tank 50 and the cleaning head cover 110f of the cleaning head 10, as detailed in the following more specific embodiments.

[0103] In one or more alternative embodiments, the lower surface of the cleaning head cover 110f is provided with a sewage overflow prevention flange (not shown in the figure) corresponding to the sewage discharge port 50a. After the cleaning head cover 110f is closed, the sewage overflow prevention flange can block the sewage discharge port 50a.

[0104] In one or more alternative embodiments, the lower surface of the cleaning head cover 110f is provided with an anti-overflow water flange (not shown in the figure) corresponding to the water injection hole 50b. After the cleaning head cover 110f is closed, the anti-overflow water flange can block the water injection hole 50b.

[0105] In one or more alternative embodiments, a handle hole 50c is provided on the top wall of the water tank body, and the handle hole 50c is connected to the sewage channel; after opening the cleaning head cover 110f, the user can use his hand to hook the handle hole 50c to remove the water tank 50 from the housing body 110.

[0106] In one or more alternative embodiments, the lower surface of the cleaning head cover 110f is provided with a waterproof flange (not shown in the figure) corresponding to the handle hole 50c. After the cleaning head cover 110f is closed, the waterproof flange can seal the handle hole 50c.

[0107] The various specific ways in which the top wall of the water tank 50 is fitted with the cleaning head cover 110f can further limit the shaking of the water tank 50 within the housing body 110 and prevent noise. At the same time, the sealing fit between the cleaning head cover 110f and the sewage pouring port 50a, water inlet 50b, and handle hole 50c prevents the clean water and sewage in the water tank 50 from violently agitating during the rapid pushing and pulling of the cleaning head 10, causing the water tank to overflow into the housing body 110 of the cleaning head 10 and eventually seep out of the housing body and drip onto the ground, thus affecting cleaning efficiency and cleaning effect.

[0108] This application proposes several specific ways of cooperating between the front wall of the water tank body and the water tank retaining flange 110a8 of the shell body 110, as detailed in the following more specific embodiments.

[0109] In one or more alternative embodiments, such as Figure 1-5 , Figure 13 , Figure 15 , Figure 21 As shown, a first step 503 is provided on the front wall of the water tank body. The first step 503 is located closer to the front end of the cleaning roller 10B and the squeezing roller 110c, and the sewage outlet 503a is provided on the outer surface of the first step 503. Figure 13 , Figure 15 , Figure 21As shown, the outer surface of the first step 503, the outer surface of the water tank clamp flange 110a8, the upper surface of the water guide tip 110a7, the surface of the cleaning roller located between the water guide tip and the squeezing roller, the outer surface of the squeezing roller portion, and the lower surface of the cleaning head cover portion together form a water tank (not shown in the attached figure).

[0110] By utilizing the outer surface of the first step 503 and the outer surface of the water tank clamping edge 110a8 to form a complete vertical surface in the water tank, it is possible to better prevent sewage flowing down from the upper surface of the guide tip 110a7 to flow to the gap between the water tank 50 and the shell body 110 through other paths except for the sewage outlet 503a. This can prevent unnecessary dripping caused by water flow other than the normal "self-circulating water dynamic" clean sewage flow, thereby improving cleaning efficiency and cleaning effect.

[0111] In one or more alternative embodiments, such as Figure 1-5 , Figure 13 , Figure 15 , Figure 21 As shown, a second step 502 is also provided on the front wall of the water tank body. The second step 502 is further away from the cleaning roller and the squeezing roller than the first step 503. A snap-fit ​​groove (not shown in the attached figure) is provided at the connection between the first step 503 and the second step 502. The inner surface of the water tank snap-fit ​​edge 110a8 abuts against the outer surface of the second step 502, and the top surface of the water tank snap-fit ​​edge 110a8 abuts against the lower surface of the snap-fit ​​groove.

[0112] By utilizing the outer surface of the second step 502 to abut against the inner surface of the water tank retaining edge 110a8, and the top surface of the water tank retaining edge 110a8 to abut against the lower surface of the retaining groove connecting the first step 503 and the second step 502, the water tank 50 and the housing body 110 can be more securely "locked and fixed". Even when the user pushes and pulls the cleaning head 10 at high speed, it can prevent unnecessary leakage caused by "turbulent water flow" in addition to the normal "self-circulating water power" flow of clean and dirty water in the water tank 50, thereby improving cleaning efficiency and cleaning effect.

[0113] In one or more alternative embodiments, such as Figure 1-8 , Figure 13 , Figure 15 , Figure 21As shown, a third step 501 is provided on the front wall of the water tank body. A gap space is left between the outer surface of the third step 501 and the inner surface of the water tank clamping edge 110a8 (not shown in the attached figure). A drip wall parallel to the top wall of the water tank body is connected at the connection between the second step 502 and the third step 501 (not shown in the attached figure). The drip wall is provided with multiple drip holes (502b, 502c) and a vent column Q extending to the top of the clear water chamber. The vent column Q connects the clear water chamber P and the gap space. A vent hole 502a is opened at the bottom of the vent column Q. Multiple seepage grooves (holes) 1101 are provided on the water guide part away from the water tank clamping edge 110a8 and the water guide tip 110a7 along the direction parallel to the axis of the cleaning roller. The clear water in the clear water chamber P drips into the gap space through the drip holes (502b, 502c) and continues to pass through the seepage grooves (holes) 1101 to continue to wet the surface of the cleaning roller 10B.

[0114] By utilizing the drip holes (502b, 502c) on the drip wall at the connection between the second step 502 and the third step 501, the gap between the outer surface of the third step 501 and the inner surface of the water tank card flange 110a8, and multiple seepage grooves (holes) 1101 arranged along the direction parallel to the axis of the cleaning roller on the water guide part away from the water tank card flange 110a8 and the water guide tip 110a7, a complete clean water dripping channel from the clean water chamber P to the surface of the cleaning roller is constructed (not shown in the attached figure). It can make full use of the "self-circulating water power" clean water flow to continuously provide sufficient immersion water for the cleaning roller. The entire clean water dripping process does not require any additional power, which can save energy, reduce consumption, and reduce noise.

[0115] This application proposes several specific ways in which the top wall and rear wall of the water tank body cooperate with the shell body 110 and the cleaning head cover 110f, and the details are described in the following more specific embodiments.

[0116] In one or more alternative embodiments, such as Figure 1-6 , Figure 13 , Figure 15-21 As shown, the rotational hinge points (not shown in the attached drawing) between the cleaning head cover 110f and the two side walls (110a1, 110a2) are located on the inner surface of the two side walls at the top corners of the water tank placement area (not shown in the attached drawing) away from the cleaning roller 10B. In order to avoid the rotational hinge points and the lower edge of the cleaning head cover 110f extending into the water tank placement area after opening, the top corners of the rear wall and top wall of the water tank body are provided with clearance notches 504, so that the water tank can maximize the use of the effective volume of the water tank placement area to accommodate clean water and sewage.

[0117] By using the clearance notch 504, the cleaning head cover 110f can be opened / closed smoothly without affecting the secure connection between the water tank 50 and the shell body 110. At the same time, it maximizes the effective volume of the entire water tank to rationally allocate the space of the clean water chamber and the wastewater chamber. With the partition inside the water tank body, the clean water in the clean water chamber can be dripped out just enough and the wastewater chamber can be almost full. This prevents the wastewater in the wastewater chamber from overflowing from the wastewater inlet when the cleaning head 10 is pushed and pulled at high speed, causing it to overflow due to the drop of the wastewater channel.

[0118] In one or more alternative embodiments, such as Figure 1-6 , Figure 13 , Figure 15-21 As shown, the top wall of the water tank body protrudes from the front wall of the water tank body and extends forward to form a water tank guard 505, which extends all the way to above the squeeze roller 110c. In actual use, after the cleaning head cover 110f of the cleaning head 10 is opened, the user can simultaneously rotate the water tank 50 diagonally upward at the front end of the handle hole 50c and the water tank guard 505 to remove it, thus detaching it from the housing body 110 of the cleaning head 10.

[0119] The water tank guard 505 extends from the top wall of the water tank body and protrudes outwards. The water tank guard 505, together with the handle hole 50c, allows the user to have a point of leverage on the top wall of the water tank body. This makes it easier for the user to easily bypass the rotational hinge points between the cleaning head cover 110f and the two side walls (110a1, 110a2) when rotating and removing the water tank 50. This provides a more convenient way to remove the water tank when the user really needs to remove the water tank 50 to thoroughly clean the inner wall of the water tank.

[0120] Secondly, this application provides an embodiment of a cleaning head.

[0121] See Figures 10-21This embodiment provides a cleaning head 10, including a cleaning head housing assembly and a water tank 50 as described in the first aspect. The cleaning head housing assembly includes a housing body 110 and a cleaning head cover 110f. The housing body 110 includes a left side wall 110a1 and a right side wall 110a2 for holding a cleaning roller 10B. A squeezing roller 110c for rolling and squeezing a cleaning roller is also held on the two upper side walls (110a1, 110a2) of the cleaning roller 10B. A hinge seat (not shown in the figure) is fixedly connected to one side wall. The hinge seat is hinged to one end of a drive motor assembly 10A. The output end of the other end of the drive motor assembly 10A (not shown in the figure) It is engaged with the other side wall; the cleaning roller 10B is sleeved on the drive motor assembly 10A, and the output end is coupled to drive the cleaning roller 10B to rotate and scrub the surface to be cleaned. The housing body 110 is provided with a water guide part (not shown in the figure) connecting the two side walls (110a1, 110a2). The cross section of the water guide part is an arc shape adapted to the surface of the cleaning roller 10B. The water guide tip 110a7 at the front end of the water guide part contacts the surface of the cleaning roller 10B. The squeezing roller 110c is rotatably engaged between the two side walls (110a1, 110a2), squeezing the upper surface of the cleaning roller 10B and is set eccentrically relative to the cleaning roller 10B and close to the water guide tip 110a7.

[0122] Specifically, such as Figure 13 , Figure 15 , Figure 21 As shown, the housing body 110 is provided with a water guide tip 110a7, a water tank retaining flange 110a8, a water tank front side plate (not shown in the attached figure), a squeezing roller 110c, and a cleaning roller 10B, which together form a water tank space (not shown in the attached figure). The sewage guided by the water guide tip 110a7 can only flow unidirectionally from the water tank space through the sewage inlet 503a to the sewage chamber M. At the same time, the squeezing roller 110c and the cleaning roller 10B form an interference fit, which can realize the squeezing roller 110c squeezing the cleaning roller 10B to squeeze out the sewage absorbed in the cleaning roller 10B, and after being contained in the water tank space, it flows unidirectionally to the sewage chamber M through the sewage inlet 503a. The clean water chamber P is located in the upper layer of the water tank 50, and the sewage chamber M is located in the lower layer of the water tank 50.

[0123] Specifically, such as Figure 13 , Figure 15 , Figure 21As shown, a transverse partition (not shown in the attached figure) is provided in the middle of the shell body 110. The transverse partition divides the shell body 110 into a water tank placement area (not shown in the attached figure) located in the upper layer and a dry waste cavity N located in the lower layer. The shell body 110 is provided with a water guide part (not shown in the attached figure) connecting the two side walls. The cross section of the water guide part is an arc shape adapted to the surface of the cleaning roller 10B. The root of the water guide part is closed and connected to the side of the transverse partition facing the cleaning roller. The water guide tip 110a7 at the front end of the water guide part contacts the surface of the cleaning roller. The upper surface of the water guide part can guide the sewage squeezed out from the surface of the cleaning roller away.

[0124] Specifically, such as Figures 16-20 As shown, the output end of the drive motor assembly 10A includes a button assembly (not shown in the attached figure). When the drive motor assembly 10A is working, the button assembly rotates accordingly. The drive teeth evenly distributed on the outer edge of the button assembly couple and drive the cleaning roller 10B to rotate and scrub the surface to be cleaned. The outermost front edge of the button assembly is engaged with one of the two side walls (110a1, 110a2). A button wear-resistant ring 110e is fixedly provided at the engagement point between the side wall and the outermost front edge of the button assembly. The button wear-resistant ring 110e is made of a material that is more wear-resistant than the button assembly. After the sidewall is engaged with the end button assembly, the outermost edge of the end button assembly is in clearance fit with the inner circumferential wall of the end button wear ring 110e. The end button wear ring 110e does not rotate, while the end button assembly rotates. The smooth outer and inner circumferential surfaces of the two rotate in fit. Setting the end button wear ring 110e helps to improve the service life of the end button assembly and improve the stability of the output end of the drive motor assembly 10A driving the cleaning roller 10B to rotate. It can reduce vibration and improve cleaning efficiency.

[0125] Specifically, such as Figures 16-19 As shown, for aesthetic purposes, the outer surfaces of the two side walls (110a1, 110a2) of the housing body 110 are respectively covered with a left decorative sticker 110p and a right decorative sticker 110q. The left and right decorative stickers 110p and 110q are made of a hard, wear-resistant material. On one hand, the decorative stickers can cover various reinforcing ribs (not shown in the attached diagram), wiring channels (not shown in the attached diagram), screw holes (not shown in the attached diagram), and other areas on the side walls (110a1, 110a2) that do not require daily user maintenance, thus enhancing the appearance of the entire housing body 110. On the other hand, during the use of the cleaning tool, the housing body 110 inevitably experiences some bumps and knocks. The wear-resistant and impact-resistant decorative stickers can prevent damage to the side walls (110a1, 110a2) under external impact, thus preventing damage to the entire cleaning head and affecting its normal use. Even if the decorative stickers are damaged, the user can peel them off and order new decorative stickers from the manufacturer to replace them themselves.

[0126] In one specific embodiment, such as Figure 13 , Figure 15 , Figure 21As shown, the vertical deviation angle between the central axis of the extrusion roller 110c and the central axis of the cleaning roller 10B is 5°-45°. Figure 13 , Figure 15 , Figure 21 The angle θ of the squeezing roller is in the range of 5°-45°. The contact point between the squeezing roller 110c and the cleaning roller 10B is K (not shown in the attached diagram), and the contact point between the cleaning roller 10B and the surface to be cleaned is T (not shown in the attached diagram). When the squeezing roller 110c rotates clockwise to the position of point K, wastewater is squeezed out by the squeezing roller 110c, and it continues to rotate. The cleaning roller 10B still contains a small amount of unsqueezed clean water in the area to the right of point K to point T. When it rotates to point T, the surface to be cleaned is cleaned. Relative to the contact point T between the cleaning roller 10B and the surface to be cleaned, the highest point of the cleaning roller 10B is Z (not shown in the attached diagram). If the angle θ exceeds 45°, the cleaning roller 10B... The area to the right of point K to point T still contains a small amount of water that has not been squeezed out. Due to gravity, the water between point K and point Z accumulates excessive water in the wedge-shaped space (not shown in the figure) formed by the surface of the squeezing roller 110c and the surface of the cleaning roller 10B. The part of the cleaning roller 10B that has been soaked by the water accumulated in the wedge-shaped space is in a supersaturated state in terms of its water absorption capacity. When it continues to rotate clockwise to point T to clean the surface to be cleaned, water stains will be generated, and water may even accumulate on the surface to be cleaned, causing slipperiness and posing a certain safety hazard. Moreover, it does not meet the cleanliness requirements.

[0127] Furthermore, in the aforementioned technical solution, the applicant has demonstrated through numerous experiments that, when... Figure 13 , Figure 15 , Figure 21 When the angle θ of the squeezing roller shown is between 7° and 25°, the squeezing roller 110c squeezes out the sewage at the contact point K of the cleaning roller 10B with high efficiency and just enough to smoothly guide the sewage away through the water guide tip 110a7. The remaining water that is not squeezed out continues to be contained in the cleaning roller 10B and continues to rotate. When the contact point between the cleaning roller 10B and the surface to be cleaned is T, the floor is neither too wet nor too wet. The cleaning roller 10B's sponge layer can be used to wipe and dissolve the dirt at the same time. No water stains will be left on the cleaned floor after cleaning.

[0128] Furthermore, in the aforementioned technical solution, the applicant has demonstrated through numerous experiments that, when... Figure 13 , Figure 15 , Figure 21When the angle θ of the extrusion roller shown is between 15° and 22°, the extrusion roller 110c effectively squeezes out sewage at the contact point K of the cleaning roller 10B, and the sewage can be smoothly guided away through the guide tip 110a7. Furthermore, the sewage level in the sewage storage tank S will not be too high. Users do not need to use excessive acceleration to push or pull the cleaning head 10 to allow the sewage stored in the sewage storage tank S to easily pass over the sewage inlet 503a and be further collected into the sewage chamber M through the sewage channel. Even during the process of pushing or pulling the cleaning head... Maintaining a constant speed, during the slow transition from pushing to pulling or from pulling to pushing, inertia is used to allow the sewage to easily pass over the sewage inlet 503a and be collected into the sewage chamber M through the sewage channel. The remaining water that is not squeezed out continues to be contained in the cleaning roller 10B and continues to rotate. When the contact point between the cleaning roller 10B and the surface to be cleaned is T, the floor is neither too wet nor too wet. The sponge layer of the cleaning roller 10B can be used to wipe and dissolve dirt at the same time, and no water stains will be left on the cleaned floor after cleaning.

[0129] This design, with a cleaning head 10 containing a built-in water tank 50, allows for efficient cleaning even without a pump to enhance the flow of clean and wastewater. The kinetic energy generated by the user pushing and pulling the cleaning head 10, which provides pressure to the clean water in the water tank 50 and the wastewater squeezed out of the water tank, creates a powerful agitation that causes the clean water to drip evenly from the clean water chamber P onto the surface of the cleaning roller. Once the clean water has fully soaked the surface of the cleaning roller 10B, as it rotates, the wastewater is squeezed out by the squeezing roller 110c. The wastewater then flows through the guide tip 110a7 into the water tank. Under the influence of this agitation, the wastewater in the water tank flows through the wastewater inlet 503a into the wastewater chamber M, thus completing the entire self-circulating water and wastewater cycle process: clean water chamber - cleaning roller - squeezing roller - water tank space - wastewater inlet - wastewater chamber. The clean water and wastewater circulation process described above does not require any external power to accelerate the water flow. It relies entirely on the user to provide the kinetic energy for the water circulation while pushing and pulling the cleaning head to clean the floor, thus saving energy, reducing consumption, and lowering noise.

[0130] On the other hand, even when the user quickly pushes and pulls the cleaning head 10 to clean, the sewage agitates in the sewage chamber M but cannot enter the clean water chamber P. This prevents the sewage from splashing back onto the surface of the cleaning roller 10B due to agitation, thus affecting the cleaning efficiency. Since the squeezing roller 110c is positioned eccentrically on the cleaning roller 10B, and the water tank space is located above the cleaning roller 10B, when the cleaning roller 10B is in an unsaturated state, a gap may form between the squeezing roller 110c and the cleaning roller 10B. Under the action of gravity, the seeping sewage flows down from the surface of the cleaning roller 10B or into the water tank space, and then flows unidirectionally to the sewage chamber M through the sewage inlet 503a, preventing it from dripping onto the surface to be cleaned and thus affecting the cleanliness.

[0131] This application proposes several specific ways in which the squeezing roller 110c and the cleaning roller 10B in the cleaning head 10 are matched, as detailed in the following more specific embodiments.

[0132] In one or more alternative embodiments, the squeeze roller 110c is not powered during operation, such as Figure 13 , Figure 15-19As shown, the housing body 110 includes a left side wall 110a1 and a right side wall 110a2 for holding a cleaning roller 10B. A squeezing roller 110c, capable of rolling and squeezing a cleaning roller, is also held on the two upper side walls (110a1, 110a2) of the cleaning roller 10B. One side wall is fixedly connected to a hinge seat (not shown in the figure), which is hinged to one end of the drive motor assembly 10A. The output end of the other end of the drive motor assembly 10A (not shown in the figure) is engaged with the other side wall. The cleaning roller 10B is sleeved on the drive motor assembly 10A, and its output end couples to drive the cleaning roller 10B to rotate and scrub the surface to be cleaned. The left side wall 110a1 and right side wall 110a2 of the housing body 110... The device is equipped with a left sliding locking block 110d1 and a right sliding locking block 110d2 for the squeezing roller. Both squeezing roller sliding locking blocks (110d1 and 110d2) are provided with slides (not shown in the attached figure) that allow the two ends of the squeezing roller 110c to slide into and be accurately positioned along a spiral trajectory. When there is a lot of hair wrapped around the surface of the squeezing roller 110c, after removing the cleaning roller 10B fitted on the drive motor assembly 10A, the user can hold the two ends of the squeezing roller 110c with both hands and slide the two ends of the squeezing roller 110c away from the two squeezing roller sliding locking blocks (110d1 and 110d2) along the slides, and then remove the squeezing roller 110c from the housing body 110. After removing the squeezing roller 110c, the hair wrapped around the squeezing roller 110c can be easily removed by rubbing it off from one end of the squeezing roller 110c to the other end. Then, slide both ends of the squeezing roller 110c into the positioning points of the two squeezing roller sliding locking blocks (110d1, 110d2) along the slide rail (not shown in the attached figure). After that, put the cleaning roller 10B on the drive motor assembly 10A and re-lock the output end of the drive motor assembly 10A with the other side wall. This completes the manual hair removal process on the surface of the squeezing roller 110c.

[0133] Specifically, such as Figure 13 , Figure 15-19As shown, the squeeze roller 110c elastically squeezes the upper surface of the cleaning roller 10B. Driven by the drive motor assembly 10A, the cleaning roller 10B rotates. Due to the constant presence of a large positive pressure between the cleaning roller 10B and the squeeze roller 110c, friction is naturally generated between them. Under the action of this friction, the cleaning roller 10B naturally drives the squeeze roller 110c to rotate passively as well. Because there is a relatively small "rolling friction" between the cleaning roller 10B and the squeeze roller 110c, compared to the larger "sliding friction" between the "squeezing strip" and the rotating cleaning roller 10B in the prior art where the "squeezing strip" remains stationary relative to the cleaning roller 10B, the wear on the surface of the squeeze roller 110c in this embodiment is minimal. Simultaneously, the "limiting torque" that prevents the rotation of the cleaning roller 10B, transmitted from the squeeze roller 110c to the output end of the drive motor assembly 10A, is also small. This significantly reduces the operating current of the drive motor assembly 10A, thereby further saving energy and reducing consumption.

[0134] This configuration eliminates the need for any additional power to rotate the extrusion roller 110c, thus saving energy, reducing consumption, and lowering noise.

[0135] In one or more alternative embodiments, the rotational power of the extrusion roller 110c during operation actually comes from the output of the drive motor assembly 10A, such as... Figure 20 As shown, a set of gear assembly (not shown in the figure) is provided on one side wall of the housing body that is snapped into the output end of the drive motor assembly 10A. One gear in the gear assembly drives the extrusion roller 110c to rotate synchronously on the same axis. A drive gear 10A1 is sleeved on the output end of the drive motor assembly 10A. While the output end of the drive motor assembly 10A drives the cleaning roller 10B to rotate, the drive gear 10A1 drives the gear set to rotate, thereby driving the extrusion roller 110c to rotate.

[0136] Specifically, such as Figure 20 As shown, the gear set assembly includes at least three meshing driven gears 110d3, one of which is coaxially coupled with the extrusion roller 110c, and the two rotate synchronously with the same angular velocity. Therefore, a drive gear 10A1 is sleeved on the output end of the drive motor assembly 10A. While the output end of the drive motor assembly 10A drives the cleaning roller 10B to rotate, the drive gear 10A1 drives the gear set to rotate, thereby driving the extrusion roller 110c to rotate.

[0137] Furthermore, such as Figure 9 , Figure 10As shown, the handle rod assembly 30 connected to the cleaning head 10 includes a control panel (not shown in the figure), and the gear assembly includes a gear adjustment mechanism (not shown in the figure). The gear adjustment mechanism can flexibly adjust the number of gears involved in the coupled rotation according to the instructions issued by the control panel, thereby adjusting the clockwise / counterclockwise rotation of the squeezing roller 110c relative to the cleaning roller 10B. When the squeezing roller 110c rotates clockwise relative to the cleaning roller 10B, the tangential relative speed difference between the two at the squeezing point is small, and the relative friction between the squeezing roller 110c and the cleaning roller 10B is also small. The impact on the motor current and energy consumption of the drive motor assembly 10A is also small. However, the squeezing roller 110c's ability to squeeze sewage out of the cleaning roller 10B will be slightly weaker. When the squeezing roller 110c rotates in reverse relative to the cleaning roller 10B, the tangential relative speed difference between the two at the squeezing point is relatively large, and the relative friction between the squeezing roller 110c and the cleaning roller 10B is also relatively large. However, the impact on the motor current and energy consumption of the drive motor assembly 10A is still relatively small. The only difference is that the squeezing roller 110c has a slightly stronger ability to squeeze wastewater out of the cleaning roller 10B. Users can select the cleaning mode they need on the handle rod assembly 30. When a strong cleaning power is required, the squeezing roller 110c can be rotated in reverse relative to the cleaning roller 10B; when a quieter operation and longer battery life are required, the squeezing roller 110c can be rotated clockwise relative to the cleaning roller 10B.

[0138] With this configuration, no additional power is required for the rotation of the extrusion roller 110c. Since the "rolling friction" between the cleaning roller 10B and the extrusion roller 110c has a negligible effect on the motor operating current of the drive motor assembly 10A, this embodiment can still save energy, reduce consumption, and lower noise.

[0139] This application proposes several specific ways in which the trash box 140 in the cleaning head 10, the detachable shovel assembly 110b mounted on the housing body 110, and the cleaning roller 10B are cooperated, as detailed in the following more specific embodiments.

[0140] In one or more alternative embodiments, such as Figure 13 , Figure 15 , Figure 21 As shown, the cleaning head 10 also includes a trash box 140, which can be inserted into / extracted from the dry waste cavity N of the housing body 110 through the lower part of one side wall of the housing body 110. The cleaning roller 10B can bring the trash into the trash box 140 by rotating and wiping the ground.

[0141] In one or more alternative embodiments, such as Figure 13 , Figure 15 , Figure 21As shown, the cleaning head 10 also includes a detachable shovel assembly 110b, which is detachably connected to the housing body 110 of the cleaning head 10 near the lower edge of the cleaning roller 10B, close to the surface to be cleaned, and located between the cleaning roller 10B and the trash can 140; the side of the detachable shovel assembly 110b close to the cleaning roller 10B is an arc shape adapted to the surface of the cleaning roller 10B. Furthermore, the detachable shovel assembly 110b includes a shovel body 110b1 and a reinforcing plate 110b2. A portion of the upper surface of the shovel body 110b1 is slidably connected to the bottom end of the housing body 110 facing the cleaning roller 10B, and another portion of the upper surface of the shovel body 110b1 is in contact with the surface of the cleaning roller to guide dry waste smoothly into the gap channel between the shovel body 110b1 and the cleaning roller 10B, so that the dry waste is smoothly thrown into the waste bin 140 along the gap channel under the drive of the cleaning roller 10B. The lower surface of the shovel body 110b1 is in contact with the reinforcing plate 110b2, and another portion of the reinforcing plate 110b2 is in contact with the bottom surface of the housing body 110 facing the bottom end of the cleaning roller 10B to provide sufficient support when the shovel body 110b1 encounters obstacles, thereby extending the service life of the entire detachable shovel assembly 110b and preventing damage to the shovel body 110b1.

[0142] Thirdly, this application provides an embodiment of a cleaning tool.

[0143] The cleaning tool includes a cleaning head 10, a connecting rod assembly 20, a handle assembly 30, and a hinge head assembly 40 as described in the second aspect. The hinge head assembly 40 is pivotally mounted on the rear of the housing body 110 and can rotate about an axis parallel to the cleaning roller 10B, forming an angle of 85°-180° with the cleaning head 10. The connecting rod assembly 20 connects to the hinge head assembly 40 and continues to electrically connect the drive motor assembly 10A to the outside. The handle assembly 30 is mated to one end of the connecting rod assembly 20 and has a start / stop button (not shown in the figure). The control board (not shown in the figure) built into the handle assembly 30 can control the operation of the motor of the drive motor assembly.

[0144] This application proposes several specific embodiments of cleaning tools that include or exclude water pumps to accelerate water flow, as detailed in the following more specific embodiments.

[0145] In one or more alternative embodiments, such as Figure 1-20As shown, the cleaning head 10, connecting rod assembly 20, handle assembly 30, and hinge head assembly 40 of the cleaning tool do not require a water pump. The entire cleaning tool operates entirely based on the "self-circulating water power" of the water tank 50 and the cleaning head working principle disclosed above, which allows for the self-flowing circulation of clean and wastewater. No additional power is required for the self-flowing circulation of clean and wastewater. The "water turbulence" kinetic energy generated when the user pushes and pulls the cleaning head 10 at high speed for cleaning is used as the power source for the water circulation, thus saving energy, reducing consumption, and lowering noise.

[0146] In one or more alternative embodiments, a water pump (not shown in the figure) is provided in the connecting rod assembly 20 to drive water to flow from the water tank 50 to the cleaning roller 10B. The handle assembly 30 connects the water pump to the control board in the connecting rod assembly 20 or the connecting rod assembly. Based on the self-circulating clean water and sewage circulation, in order to further increase the flow rate of clean water rinsing the surface of the cleaning roller 10B, the clean water driven by the water pump can further improve the efficiency of clean water replacing the squeezed-out sewage, thereby providing cleaning effect and cleaning efficiency.

[0147] In one or more alternative embodiments, the hinge head assembly 40 has a built-in water pump (not shown in the figure) that drives water to flow from the water tank 50 to the cleaning roller 10B. The hinge head assembly 40 electrically connects the water pump to the handle assembly 30 or the control board in the connecting rod assembly via the connecting rod assembly 20. The control board can control the operation of the water pump, which can draw water from the water tank and spray clean water directly onto the surface of the cleaning roller through a clean water outlet on one of its side walls to provide a greater water flow rate to wash the surface of the cleaning roller.

[0148] Furthermore, based on the same inventive concept, the housing assembly of the cleaning head 10 in this embodiment includes a housing body 110 with two side walls, wherein a hinge seat is fixedly connected to one side wall, the hinge seat is hinged to one end of the drive motor 10A, and the output end of the other end of the drive motor 10A is engaged with the other side wall; the cleaning roller 10B is sleeved on the drive motor 10A, and the cleaning roller 10B includes a cleaning roller body and a cleaning roller outer layer covering the outer periphery of the cleaning roller body, the output end coupling drives the cleaning roller 10B to rotate and scrub the surface to be cleaned; the cleaning head housing body 110a is provided with a water guide tip 110a7 that abuts against the cleaning roller outer layer in a saturated state along the entire cleaning roller axis and guides the wastewater; the squeezing roller 110c is rotatably engaged between the two side walls, squeezing the upper surface of the cleaning roller 10B and being eccentrically positioned relative to the cleaning roller and close to the water guide tip 110a7; clean water can be sprayed from a clean water outlet (not shown in the figure) provided on one of the side walls to directly rinse the surface of the cleaning roller 10B.

[0149] In one or more alternative embodiments, the cleaning head 110 also includes a trash can 140; the trash can is inserted into / removed from the housing body 110 through the lower part of one side wall, and the cleaning roller 10B can bring trash into the trash can 140 by rotating and wiping the floor.

[0150] In one or more alternative embodiments, the cleaning head further includes a detachable shovel assembly 110b; the detachable shovel assembly 110b is detachably connected to the lower edge of the housing body 110 near the cleaning roller 10B, close to the surface to be cleaned, and located between the cleaning roller 10B and the trash can 140; the side of the detachable shovel assembly 110b close to the cleaning roller 10B is an arc shape adapted to the surface of the cleaning roller.

[0151] In one or more alternative embodiments, the housing body 110 further includes a waste guide (not shown in the figures) disposed between the removable shovel assembly 110b and the waste container 140; the upper surface of the waste guide or the waste guide and the removable shovel assembly forms an inclined waste guiding area (not shown in the figures); the waste guiding area is disposed below the squeeze roller 10B and communicates with the waste container 140.

[0152] In one or more alternative embodiments, the hinge head assembly 40 includes a hinge head upper shell 401, a water pump 40A, a hinge head lower shell 402, and a locking tongue assembly; one end of the hinge head upper shell 401 is detachably snapped into the connecting rod assembly 20; the water pump 40A delivers clean water to the surface of the cleaning roller of the cleaning head 10; the hinge head lower shell 402 is sandwiched between the housing body 110, the cleaning head rear housing 120, and the hinge head pivot engagement assembly 150, the hinge head pivot engagement assembly 150 including a hinge head pivot engagement body 150a that can be interlocked with and hold the hinge head lower shell 402 and a hinge head pivot engagement end cap 150. b. The bottom of the hinge head shell 401 is fitted into the top opening of the hinge head lower shell 402; the latch assembly is confined within the hinge head lower shell 402, including the latch 403, which can partially extend out of the hinge head lower shell 402 to engage with the latch engagement plate (not shown in the figure) mounted on the hinge head pivot engagement body 150; the latch 403 can rotate together with the hinge head lower shell 402; when the latch rotates out of the locked position, the hinge head assembly can continue to rotate freely until the connecting rod assembly and the cleaning head housing assembly are at 180°; when the latch rotates back to the locked position, the hinge head assembly and the cleaning head housing assembly are at 85°.

[0153] It should be noted that in the prior art, parts that perform the same function as the hinge head pivot engagement assembly 150 in this application are often set as a single part in order to save materials or manufacturing processes. However, in this application, the hinge head pivot engagement assembly 150 includes a hinge head pivot engagement body 150a and a hinge head pivot engagement end cap 150b that can be interlocked and hold the hinge head lower shell 402. Although this design increases the number of parts, it can reduce the need for a single part to be installed into the corresponding pivoting hinge head lower shell 402 during the manufacturing process. This process will inevitably cause some elastic deformation of the single part during installation. Even if the part returns to its initial state after installation, it is still difficult to avoid irreversible stress and strain damage to its interior. Moreover, this part is a core force-bearing component in the pivoting process. Stress and strain damage may bring potential quality hazards to the use of the overall cleaning equipment in the future. Therefore, the detachable design of the hinge head pivot engagement assembly 150 in this application is a huge improvement. It not only avoids stress damage during the installation of the hinge head lower shell 402 onto the hinge head pivot engagement assembly 150, but also provides great convenience for future disassembly and maintenance of the two components, allowing consumers to easily replace them themselves without any other special tools.

[0154] In one or more alternative embodiments, an auxiliary wheel 130 is also provided on the rear housing 120 of the cleaning head. The contact line between the cleaning roller 10B and the surface to be cleaned and the contact point between the auxiliary wheel 130 and the surface to be cleaned together determine the support surface for the cleaning head 10. By setting the auxiliary wheel, possible friction between the bottom surface of the housing 110 and the detachable scraper assembly 110b and the surface to be cleaned can be reduced. When the surface to be cleaned is uneven, the support height of the auxiliary wheel, combined with the elasticity of the sponge layer of the cleaning roller 10B, can effectively absorb the vibration of the cleaning head caused by the unevenness, making the user's push and pull of the cleaning head smoother.

[0155] Preferably, the cleaning head rear housing 120 may be provided with a first auxiliary wheel (not shown in the attached figure) and a second auxiliary wheel (not shown in the attached figure). The two auxiliary wheels can be fixed to the cleaning head rear housing 120 by a pin (not shown in the attached figure), and both the first and second auxiliary wheels can rotate around the pin. In actual use, the number and position of the first and second auxiliary wheels can be flexibly configured according to the actual usage scenario.

[0156] In one or more alternative embodiments, the latch assembly further includes a latch support 404, the upper side of which can clamp the water pump 40A inside the hinge head housing 401, the lower side of which abuts against the first spring, the other side of which abuts against the latch 403, the latch 403 being clamped between the latch support 404 and the hinge head lower housing 402 and being partially extended out of the hinge head lower housing 402.

[0157] In one or more alternative embodiments, the hinge head housing 401 contains a locking button and a locking button support. The outer side of the locking button support abuts against a second spring, and the other side of the second spring abuts against the locking button. The locking button extends out of the hinge head housing 401 to achieve the engagement of the hinge head assembly 40 with the connecting rod assembly 20.

[0158] In one or more alternative embodiments, the top of the hinge head housing 401 is provided with a snap hole for engaging the hinge head electrical connector 40B. The water pump 40A is electrically connected to the hinge head electrical connector 40B. The water pump 40A can be electrically connected to the connecting rod assembly 20 and the handle 30 through a wire harness that is electrically connected to the hinge head electrical connector 40B.

[0159] In one or more alternative embodiments, the hinge head lower shell 402 includes a rotating cylinder and a sleeve cylinder perpendicularly intersecting the rotating cylinder. The rotating cylinder has openings at both ends, through which the inlet and outlet water pipes of the water pump 40A and the wire harness electrically connected to the hinge head electrical connector 40B can pass. The bottom of the hinge head upper shell 401 is fitted into the top opening of the sleeve cylinder, and the hinge head lower shell 402 can rotate around the axis of the rotating cylinder.

[0160] In one or more alternative embodiments, the hinge head upper shell 401 and the hinge head lower shell 402 are rotatably sleeved.

[0161] In one or more alternative embodiments, the bottom of the hinge head lower shell 401 extends toward its top opening with at least one nut post, and the peripheral wall of the hinge head upper shell 401 is provided with a screw groove corresponding to the nut post. The hinge head upper shell 401 and the hinge head lower shell 402 are fixedly connected by at least one screw.

[0162] In one or more alternative embodiments, the hinge head shell 401 includes an upper snap-fit ​​portion and a lower sleeve portion; the peripheral wall of the upper snap-fit ​​portion is provided with a screw groove corresponding to the nut post, and the upper snap-fit ​​portion is detachably snap-fitted with the rod assembly 20; the peripheral wall of the lower sleeve portion is provided with a relief groove corresponding to the nut post, and the lower sleeve portion is detachably fixedly connected to the hinge head lower shell 402.

[0163] In one or more alternative embodiments, the cleaning head 10 also includes a water tank 50, the internal space of which is divided into a clean water chamber P and a wastewater chamber M by a horizontal partition. In the prior art, the water tank assembly 120 is inserted laterally into the cleaning head 10 or clipped vertically onto the upright, resulting in a heavy overall weight of the floor scrubber and a cumbersome feel when pushed or pulled by the user. This solution, through a reasonable design of the cleaning head 10 structure, directly clips the water tank 50 onto the housing body of the cleaning head 10, and the clean water chamber P and wastewater chamber M are arranged laterally isolated inside the cleaning head 10, rather than being suspended from the upright or inserted at a high position. This layout lowers the center of gravity of the entire machine, reduces the overall height of the cleaning head 10 and the vertical load, and compared with the prior art, allows the cleaning tool to have a lighter operating feel and improves the user experience.

[0164] In one specific embodiment, the hinge head assembly 40 can rotate about an axis parallel to the cleaning roller 10B, forming an angle of 85°-180° with the cleaning head housing assembly 110; when the hinge head assembly 40 rotates away from the locked position, the hinge head assembly 40 can continue to rotate freely until the connecting rod assembly 20 forms a 180° angle with the cleaning head housing assembly 110; when the hinge head assembly 40 rotates back to the locked position, the hinge head assembly 40 and the cleaning head housing assembly 110 can form an 85° angle.

[0165] In existing technologies, the cleaning head 10 using the "water-dust circulation" technology is equipped with a brush roller. Whether driven by a separate motor or by a transmission mechanism via a cleaning roller drive motor 10A, this increases the power consumption of the cleaning head 10 and the overall power consumption of the cleaning tool, as well as increasing operating noise. This embodiment eliminates the independent brush roller and its drive mechanism found in traditional cleaning heads 10. It relies solely on the interaction between the cleaning roller 10B and the squeezing roller 110c to physically squeeze and recycle wastewater, eliminating the additional power load and avoiding the extra power consumption and noise problems caused by the brush roller drive. This effectively reduces the power consumption and noise of the cleaning tool during operation. The cleaning roller 10B simultaneously performs cleaning and wastewater adsorption functions, while the squeezing roller 110c replaces the scraping function of the brush roller, resulting in a simpler structure.

[0166] Obviously, the above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the content of this specification should be included within the protection scope of the present invention.

Claims

1. A water tank, characterized in that, The system includes a water tank body, which has two side walls, a rear wall, a bottom wall, a top wall, a front wall, and a partition. The partition divides the internal space of the water tank body into a clear water chamber located in the upper layer and a sewage chamber located in the lower layer. The top wall has a water inlet connected to the clear water chamber and at least one sewage outlet near one side wall. The sewage outlet is connected to the sewage chamber through a sewage discharge channel that runs through and is isolated from the clear water chamber. The front wall has a sewage inlet higher than the partition. The sewage inlet is connected to the sewage chamber through a sewage discharge channel that runs through and is isolated from the clear water chamber. Sewage squeezed out from the cleaning roller can flow into the sewage chamber through the sewage inlet and the sewage discharge channel. The front wall has multiple clear water droplet outlets located below the partition, which can drip clear water onto the surface of the cleaning roller.

2. The water tank as described in claim 1, characterized in that, The water tank is arranged horizontally within the shell body, and the two side walls, rear wall, and bottom wall of the water tank body are closed on all four sides.

3. The water tank as described in claim 1, characterized in that, A horizontal partition is provided in the middle of the shell body, which divides the shell body into a water tank placement area in the upper layer and a dry waste holding area in the lower layer. The water tank is a rectangular block that fits the water tank placement area. The water tank body can be put into / taken out of the shell body of the cleaning head after the cleaning head cover is opened. Preferably, the housing body includes a left side wall and a right side wall for holding the cleaning roller, and a squeezing roller for rolling and squeezing the cleaning roller is also held on the left side wall and the right side wall above the cleaning roller. Preferably, the housing body is provided with a water guide section connecting the left side wall and the right side wall. The cross section of the water guide section is an arc shape adapted to the surface of the cleaning roller. The root of the water guide section is closed and connected to the side of the transverse partition facing the cleaning roller. The water guide tip at the front end of the water guide section contacts the surface of the cleaning roller. The upper surface of the water guide section can guide away the sewage squeezed out from the surface of the cleaning roller. Preferably, the upper surface of the water guide extends upward with a water tank retaining flange, the wastewater inlet is a long strip parallel to the axis of the extrusion roller, the lower side of the wastewater inlet is lower than the highest point of contact between the water guide tip and the surface of the cleaning roller, and the top surface of the water tank retaining flange is lower than the lower side of the wastewater inlet. Preferably, a wastewater storage tank is formed between the water guide tip and the water tank clamp flange, and the cross-section of the wastewater storage tank is V-shaped; Preferably, the sewage squeezed out by the squeezing roller flows down along the guide tip. When the sewage storage tank is full or when the user pushes the cleaning head quickly, the sewage can pass through the sewage inlet and flow into the sewage chamber along the sewage inlet channel.

4. The water tank as described in claim 1, characterized in that, The water tank body can be inserted into / removed from the housing body of the cleaning head after the cleaning head cover is opened. The lower surface of the cleaning head cover is provided with a sewage overflow prevention flange with a shape corresponding to the sewage discharge port. After the cleaning head cover is closed, the sewage overflow prevention flange can block the sewage discharge port. Alternatively, the lower surface of the cleaning head cover has a water-proof flange with a shape corresponding to the handle hole at the location corresponding to the water injection hole. After the cleaning head cover is closed, the water-proof flange can block the handle hole.

5. The water tank as described in claim 1, characterized in that, The top wall of the water tank body is provided with a handle hole, which is connected to the sewage channel; after opening the cleaning head cover, the user can hook the handle hole to remove the water tank; Preferably, the lower surface of the cleaning head cover is provided with a waterproof flange with a shape corresponding to the handle hole. After the cleaning head cover is closed, the waterproof flange can seal the handle hole.

6. The water tank as described in claim 3, characterized in that, The front wall of the water tank body is provided with a first step, which is located closer to the front end of the cleaning roller and the squeezing roller. The sewage outlet is located on the outer surface of the first step. The outer surface of the first step, the outer surface of the water tank clamping edge, the upper surface of the water guide tip, the surface of the cleaning roller located between the water guide tip and the squeezing roller, the outer surface of the squeezing roller part, and the lower surface of the cleaning head cover part together form a water tank. Preferably, a second step is provided on the front wall of the water tank body. The first step is further away from the cleaning roller and the squeezing roller. A snap-fit ​​groove is provided at the connection between the first step and the second step. The inner surface of the snap-fit ​​edge of the water tank abuts against the outer surface of the second step, and the top surface of the snap-fit ​​edge of the water tank abuts against the lower surface of the snap-fit ​​groove. Preferably, a third step is provided on the front wall of the water tank body. A gap space is left between the outer surface of the third step and the inner surface of the water tank clamping edge. A drip wall parallel to the top wall of the water tank body is connected at the connection between the second step and the third step. The drip wall is provided with multiple drip holes and a vent column extending to the top of the clear water chamber. The vent column connects the clear water chamber and the gap space. Preferably, the water guide portion, which is away from the water tank flange and the water guide tip, is provided with multiple water seepage grooves along the direction parallel to the axis of the cleaning roller. The clean water in the clean water chamber drips through the drip hole into the gap space and then continues to pass through the water seepage grooves to continue to wet the surface of the cleaning roller.

7. The water tank as described in claim 3, characterized in that, The rotating hinge points of the cleaning head cover and the left and right side walls are located on the inner surfaces of the left and right side walls at the top corners of the water tank placement area away from the cleaning roller. In order to avoid the rotating hinge points and the lower edge of the cleaning head cover extending into the water tank placement area after opening, the top corners of the rear and top walls of the water tank body are provided with clearance notches, so that the water tank can make the most of the effective volume of the water tank placement area to accommodate clean water and sewage. Preferably, the top wall of the water tank body extends forward beyond the front wall of the water tank body to form a water tank awning, which extends all the way to above the extrusion roller. Preferably, after opening the cleaning head cover, the user can simultaneously rotate the water tank diagonally upwards through the handle hole and the front end of the water tank guard to remove it.

8. A cleaning head, characterized in that, include: The cleaning head housing assembly includes a housing body and a cleaning head cover. The housing body includes a left side wall and a right side wall for holding a cleaning roller. Above the cleaning roller, the left side wall and the right side wall also hold a squeezing roller that can roll and squeeze the cleaning roller. One side wall is fixedly connected to a hinge seat, which is hinged to one end of a drive motor assembly. The output end of the other end of the drive motor assembly is engaged with the other side wall. The cleaning roller is sleeved on the drive motor assembly, and the output end couples and drives the cleaning roller to rotate and scrub the surface to be cleaned. The housing body is provided with a water guide part connecting the left side wall and the right side wall. The cross section of the water guide part is an arc shape adapted to the surface of the cleaning roller. The water guide tip at the front end of the water guide part contacts the surface of the cleaning roller. The squeezing roller is rotatably engaged between the two side walls, squeezing the upper surface of the cleaning roller and is eccentrically positioned relative to the cleaning roller and close to the water guide tip. The water tank as described in any one of claims 3-7.

9. A cleaning tool, characterized in that, include: The cleaning head as described in claim 8; The hinge head assembly is pivotally mounted at the rear of the housing body and can rotate about an axis parallel to the cleaning roller, forming an angle of 85°-180° with the cleaning head. The connecting rod assembly connects to the hinge head assembly and continues to connect the drive motor assembly to the external power supply; The handle assembly is connected to one end of the connecting rod assembly. The handle assembly is equipped with a start / stop button. The control board built into the handle assembly can control the operation of the motor of the drive motor assembly. Preferably, the cleaning head also includes: The trash can can be inserted into / removed from the cleaning head housing body through the lower part of one side wall. The rotating cleaning roller can carry the trash into the trash can while wiping the floor. Preferably, the cleaning head also includes: The detachable shovel assembly is detachably connected to the lower edge of the cleaning head housing near the cleaning roller, close to the surface to be cleaned, and located between the cleaning roller and the trash can; the side of the detachable shovel assembly close to the cleaning roller is curved to match the surface of the cleaning roller.

10. The cleaning tool as described in claim 9, characterized in that, The hinge head assembly has a built-in water pump that drives water to flow from the water tank assembly to the cleaning roller. The hinge head assembly electrically connects the water pump to the control board via a connecting rod assembly. The control board can control the operation of the water pump. The water pump can draw water from the water tank and spray clean water directly onto the surface of the cleaning roller through a clean water outlet on one of the side walls, providing a greater water flow rate to rinse the surface of the cleaning roller.

Images