Water and dust circulation cleaning head and cleaning tool

Abstract

The invention discloses a water and dust circulation cleaning head and a cleaning tool. The water and dust circulation cleaning head comprises a cleaning head shell assembly, a cleaning roller and an extrusion roller. The cleaning head shell assembly comprises a cleaning head shell body provided with two side walls, one side wall is fixedly connected with a hinge base, the hinge base is hinged to one end of a driving motor, and the output end of the other end of the driving motor is connected with the other side wall in a clamped mode. The cleaning roller sleeves the driving motor, and the output end of the cleaning roller is coupled to drive the cleaning roller to rotate to scrub a to-be-cleaned surface; the cleaning head shell body is provided with a water guide tip which abuts against the cleaning roller in the saturated state in the axial direction of the whole cleaning roller and guides sewage. The extrusion roller is rotatably clamped between the two side walls, clear water can be sprayed out from a clear water outlet formed in one side wall to directly wash the surface of the cleaning roller, an anti-overflow plate upwards extends from the cleaning head shell body away from the extrusion roller relative to the water guide tip part, and a water tank space is defined by the water guide tip part, the anti-overflow plate, the extrusion roller and the cleaning roller.

Description

Technical Field

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

[0002] In the applicant's prior art, such as that disclosed in Chinese patents CN120167846A, CN119184557A, and CN212326298U, the cleaning heads using the "water-dust circulation" technology are all equipped with brush rollers. Whether driven by a separate motor or by a transmission mechanism that drives the brush roller's motor, this adds to the power consumption of the cleaning head, the overall power consumption of the cleaning tool, and the noise during operation. Furthermore, in existing technologies, the water tank assembly is typically inserted horizontally into the cleaning head of the floor scrubber or clipped vertically onto the scrubber's upright post, resulting in a still very heavy overall weight. This makes pushing and pulling the scrubber feel cumbersome, and users need to remove the water tank to refill it before reattaching it to the cleaning head or upright post, which is very inconvenient. Therefore, there is an urgent need to find a technical solution that allows for a lighter operating feel in cleaning tools and a technical solution that reduces noise and power consumption during operation. Summary of the Invention

[0003] This application provides a water-dust circulation cleaning head and cleaning tool, which, while achieving "water-dust circulation," reduces the operating noise and power consumption of the cleaning head in existing cleaning tools, and also makes the cleaning tool easier to operate. The specific technical solution is as follows:

[0004] In a first aspect, this application provides a water-dust circulation cleaning head, comprising:

[0005] The cleaning head housing assembly includes a cleaning head housing body with two side walls, wherein a hinge seat is fixedly connected to one side wall, the hinge seat is hinged to one end of a drive motor, and the output end of the other end of the drive motor is engaged with the other side wall.

[0006] The cleaning roller is mounted on the drive motor. The cleaning roller includes a cleaning roller body and a cleaning roller outer layer covering the outer periphery of the cleaning roller body. The output end couples and drives the cleaning roller to rotate and scrub the surface to be cleaned. The cleaning head housing body is provided with a water guide tip that abuts against the cleaning roller outer layer in the saturated state along the entire cleaning roller axis and guides the wastewater.

[0007] The squeezing roller is rotatably engaged between the two side walls, squeezing the upper surface of the cleaning roller and being eccentrically positioned relative to the cleaning roller and close to the water guide tip. The squeezing roller can be slid out from the left side wall and / or the right side wall.

[0008] Among them, clean water can be sprayed from the clean water outlet set on one of the side walls to directly rinse the surface of the cleaning roller. The cleaning head housing body, which is away from the squeezing roller and is located away from the cleaning roller, has an overflow plate extending upward. The water guide tip, the overflow plate, the squeezing roller and the cleaning roller enclose a water tank space.

[0009] In one or more alternative embodiments, the water-dust circulation cleaning head further includes:

[0010] 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.

[0011] In one or more alternative embodiments, in a cross section perpendicular to the axial direction of the cleaning roller, the cleaning head housing body has a horizontal partition extending in the direction away from the cleaning roller below the water guide tip, and a vertical wall extending upward at the other end of the horizontal partition. The two side walls, the water guide tip, the horizontal partition, and the vertical wall together enclose a sewage cavity.

[0012] In one or more alternative embodiments, the overflow shield is provided with holes or grooves connecting the water tank space and the sewage cavity.

[0013] In one or more alternative embodiments, a one-way filtration device is provided on one side of the sewage cavity, and the sewage guided by the guide tip can only flow in one direction from the water tank space through the one-way filtration device to the sewage cavity.

[0014] In one or more alternative embodiments, the water-dust circulation cleaning head further includes:

[0015] The top cover, located above the extrusion roller, can be rotated open along the axis parallel to the cleaning roller on the side closest to the cleaning roller.

[0016] In one or more alternative embodiments, the lower surface of the cover extends downward parallel to the cleaning roller axis with an overflow guard flange, which fits with the top of the overflow guard plate to isolate the upper part of the water tank space from the sewage cavity.

[0017] In one or more alternative embodiments, the lower surface of the upper cover is provided with an abutment portion that abuts against the extrusion roller to clean the surface of the extrusion roller.

[0018] In one or more alternative embodiments, the abutting portion abuts against the extrusion roller at intervals along the axial direction of the extrusion roller, and the abutting portion is a plurality of spaced dot-shaped protrusions.

[0019] In one or more alternative embodiments, the outer layer of the cleaning roller is a sponge layer.

[0020] In one or more alternative embodiments, when the sponge layer is in an unsaturated state, a gap is formed between the lower surface of the water guide tip and the sponge layer, and the seeping sewage drips onto the cleaning roller body or the cleaning head housing body.

[0021] In one or more alternative embodiments, the extrusion roller is driven to rotate by friction between itself and the sponge layer.

[0022] In one or more alternative embodiments, the outer periphery of the extrusion roller is further provided with a dirt-resistant layer, which can be replaced periodically to avoid the hassle of cleaning the extrusion roller.

[0023] In one or more alternative embodiments, an end button assembly is connected to the output end of the other end of the drive motor, and the end button assembly is snapped into the other side wall.

[0024] In one or more alternative embodiments, the water-dust circulation cleaning head further includes:

[0025] The transmission mechanism is located on one side wall that engages with the end button assembly. It is connected to the drive motor via the end button assembly to simultaneously drive the cleaning roller and the squeezing roller to rotate.

[0026] In one or more alternative embodiments, the transmission mechanism includes:

[0027] The drive gear is coupled to the end knob assembly;

[0028] The first driven gear set, which meshes with the driving gear, includes at least one first driven gear and a second driven gear. The first driven gear meshes with the driving gear, the first driven gear meshes with the second driven gear, and the second driven gear is connected to the coupling end of the extrusion roller in a drive connection.

[0029] In one or more alternative embodiments, the water-dust circulation cleaning head further includes:

[0030] 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.

[0031] In one or more alternative embodiments, the cleaning head housing body further includes a waste guide disposed between the removable shovel assembly and the waste container; the upper surface of the waste guide or the waste guide and the removable shovel assembly forms an inclined waste guiding area; the waste guiding area is located below the squeezing roller and communicates with the waste container.

[0032] In one or more alternative embodiments, the extrusion roller includes:

[0033] The extrusion roller body has an inner cavity;

[0034] The bearing is located at one end of the extrusion roller body and is covered at the opening of the inner cavity;

[0035] An elastic support shaft is located at one end of the extrusion roller body and includes a locking element and a spring. Part of the locking element is limited to the inner cavity by the bearing. The locking element is elastically connected to the inner wall of the inner cavity through the spring. The locking element extending out of the inner cavity can be locked to one side wall of the cleaning head housing body.

[0036] In one or more alternative embodiments, a gear connection portion is provided at the other end of the extrusion roller body relative to the bearing and the elastic support shaft, the gear connection portion comprising:

[0037] The fixing part is connected to the extrusion roller body;

[0038] The connecting part is connected to the fixing part and also to the second driven wheel;

[0039] In use, the drive motor rotates, causing the cleaning roller body to rotate, which in turn drives the drive gear to rotate. The drive gear then drives the second driven wheel to rotate, and the second driven wheel in turn drives the squeezing roller body to rotate.

[0040] In one or more alternative embodiments, the central axis of the extrusion roller is offset from the central axis of the cleaning roller in the vertical direction by 5°-65°.

[0041] In one or more alternative embodiments, a sliding latching block is provided on the left side wall and the right side wall respectively, and the sliding latching block is provided with a groove for the end of the extrusion roller to slide in / out.

[0042] When it is necessary to remove the extrusion rollers, both ends of the extrusion rollers can be slid out from the grooves in the sliding locking blocks of each extrusion roller;

[0043] When the cleaning head is working, the two ends of the squeeze roller can rotate at the ends of the chute.

[0044] In one or more alternative embodiments, the water-dust circulation cleaning head further includes:

[0045] Hinge head assembly, connecting rod assembly for connecting water and dust circulation cleaning head and cleaning tools;

[0046] The water tank assembly includes a water tank body and a sealing sidewall. The water tank body has a hollow cavity with two transverse semi-cylindrical ends and a square column shape in the middle. The only vertical surface of the water tank body has an opening that covers the entire surface. The upper middle part of the water tank body has a notch that can accommodate the rotation of the hinge head assembly. The middle part of the water tank body has a connecting mechanism. The top wall at one end of the water tank body has a water inlet, and the lower middle part of the water tank body also has a water outlet. The sealing sidewall sealing cover is located on the opening, and the end of it near the opening groove has a sealing sidewall clearance notch corresponding to the clearance notch.

[0047] The hinge head latching cover body can clamp the hinge assembly between the cleaning head housing body, the water tank body, and the hinge head latching cover body through a connecting mechanism.

[0048] In one or more alternative embodiments, the water tank body has a clearance notch at one end near the opening slot, and the sealing sidewall has a corresponding sealing sidewall clearance notch at one end near the opening slot.

[0049] In one or more alternative embodiments, the lower middle part of the water tank body is further provided with a pipeline channel for connecting the water outlet to the water pump installed in the hinge head assembly; the water outlet is a water outlet connector protruding to the side of the pipeline channel.

[0050] In one or more alternative embodiments, an opening groove is formed on the top wall of one end of the water tank body, and the water inlet is located on the opening groove.

[0051] In one or more alternative embodiments, the water tank assembly further includes:

[0052] Flip-top assembly with a rotating opening / closing slot.

[0053] In one or more alternative embodiments, the flip cover assembly includes a flip cover body, one end of which has a sealing edge extending downwards from the water inlet, and a sealing ring is fitted on the outer wall of the sealing edge to seal the water inlet. The other end of the flip cover body has a pin, and both ends of the pin are engaged in pin holes on the wall of the opening groove. The flip cover body can rotate around the pin to open / close the water inlet.

[0054] In one or more alternative embodiments, the area of ​​the flip cover body facing the water inlet is provided with a vent hole that connects to the cavity. A one-way valve is fitted on the side of the vent hole facing the water inlet, so that water in the cavity cannot overflow from the vent hole.

[0055] In one or more alternative embodiments, a first connecting seat is provided on the top wall of the middle part of the water tank body, and a second connecting seat is provided on the front wall of the middle part of the water tank body. The connecting mechanism includes the first connecting seat and the second connecting seat.

[0056] In one or more alternative embodiments, two connecting ears are provided at both ends of the sealed sidewall, through which the water tank assembly can be fixedly connected to the cleaning head housing body.

[0057] In one or more alternative embodiments, the hinge head assembly is rotatable about an axis parallel to the cleaning roller, forming an angle of 85°-180° with the cleaning head housing assembly; when the hinge head assembly rotates away from the locked position, the hinge head assembly can continue to rotate freely until the connecting rod assembly forms a 180° angle with the cleaning head housing assembly; when the hinge head assembly rotates back to the locked position, the hinge head assembly forms an 85° angle with the cleaning head housing assembly.

[0058] In one or more alternative embodiments, the hinge head assembly includes:

[0059] The hinge head shell has one end that can be detachably snapped into the connecting rod assembly;

[0060] A water pump delivers clean water to the surface of the cleaning rollers on the cleaning head;

[0061] The lower hinge head housing is sandwiched between the cleaning head housing assembly, the water tank assembly, and the hinge head locking cover body, with the bottom of the upper hinge head housing fitted into the top opening of the lower hinge head housing.

[0062] The latch assembly, which is confined within the lower housing of the hinge head, includes a latch that can partially extend out of the lower housing of the hinge head to engage with a latch engagement plate mounted on the cleaning head housing body. The latch can rotate together with the lower housing of the hinge head.

[0063] 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°.

[0064] In one or more alternative embodiments, the latch assembly further includes a latch support member, the upper side of which can clamp the water pump inside the hinge head housing, the lower side of which abuts against a first spring, the other side of which abuts against the latch, and the latch is clamped between the latch support member and the lower hinge head housing and can partially extend out of the lower hinge head housing.

[0065] In one or more alternative embodiments, the hinge head housing 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 to achieve the engagement of the hinge head assembly with the connecting rod assembly.

[0066] In one or more alternative embodiments, the top of the hinge head shell is provided with a snap hole for engaging the hinge head electrical connection plug. The water pump is electrically connected to the hinge head electrical connection plug, and the water pump can be electrically connected to the connecting rod assembly and the handle assembly through a wire harness that is electrically connected to the hinge head electrical connection plug.

[0067] In one or more alternative embodiments, the lower shell of the hinge head 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 pipes of the water pump and the wire harness electrically connected to the hinge head electrical connector can pass. The bottom of the upper shell of the hinge head is fitted into the top opening of the sleeve cylinder, and the lower shell of the hinge head can rotate about the axis of the rotating cylinder.

[0068] In one or more alternative embodiments, the upper hinge head shell and the lower hinge head shell are rotatably fitted together.

[0069] In one or more alternative embodiments, at least one nut post extends from the bottom of the lower hinge head shell toward its top opening, and a screw groove corresponding to the nut post is provided on the peripheral wall of the upper hinge head shell, and the upper hinge head shell and the lower hinge head shell are fixedly connected by at least one screw.

[0070] In one or more alternative embodiments, the hinge head housing includes:

[0071] The upper snap-fit ​​part has a screw groove on its peripheral wall that corresponds to the nut post, and the upper snap-fit ​​part can be detachably snapped into the rod assembly;

[0072] The lower sleeve has a relief groove on its peripheral wall that corresponds to the nut post, and the lower sleeve is detachably and fixedly connected to the lower shell of the hinge head.

[0073] In one or more alternative embodiments, the hinge head housing further includes:

[0074] A fixed step ring is located between the upper snap-fit ​​part and the lower sleeve part. When the lower sleeve part of the hinge head shell is fitted into the top opening of the hinge head lower shell, the screw can pass through the screw groove and fasten the hinge head lower shell to the hinge head upper shell with the upper surface of the fixed step ring facing down.

[0075] Secondly, this application provides a cleaning tool, including a connecting rod assembly, a handle, and a water-dust circulation cleaning head as described in the first aspect. One end of the connecting rod assembly is connected to the hinge head assembly of the water-dust circulation cleaning head, and the other end of the connecting rod assembly is connected to the handle. A main control board and a battery pack are installed inside the handle. The main control board can be electrically connected to the drive motor inside the water-dust circulation cleaning head and the water pump inside the hinge head assembly through an electrical connection harness passing through the rod assembly. The main control board controls the operation of the drive motor and the water pump.

[0076] In summary, the beneficial effects of this scheme are:

[0077] This application provides a water-dust circulation cleaning head. The cleaning head housing includes a water guide tip, an overflow preventer, a squeeze roller, and a cleaning roller, all enclosing a water tank space. Wastewater guided by the water guide tip flows unidirectionally from the water tank space through a unidirectional filter device into the wastewater chamber. Simultaneously, the squeeze roller and the cleaning roller are interference-fitted, allowing the squeeze roller to compress the cleaning roller, squeezing out the wastewater absorbed by the cleaning roller and containing it in the water tank space before it flows unidirectionally into the wastewater chamber. An overflow preventer is installed between the water tank space and the wastewater chamber to prevent wastewater from swirling back through the wastewater chamber and affecting cleaning efficiency when the user quickly pushes and pulls the water-dust circulation cleaning head. 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.

[0078] 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.

[0079] By rationally designing the structure of the water and dust circulation 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 isolated inside the cleaning head, rather than being suspended on a pole 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 and the longitudinal load, and compared with existing technologies, it can make the cleaning tool have a lighter operating feel and improve the user experience.

[0080] 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

[0081] 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.

[0082] Figure 1A perspective view of an embodiment of a cleaning tool equipped with a cleaning head;

[0083] Figure 2 Another perspective view of an embodiment of a cleaning tool equipped with a cleaning head;

[0084] Figure 3 A perspective view of an embodiment of the cleaning head;

[0085] Figure 4 for Figure 1 The lower half of the sectional view along line A;

[0086] Figure 5 for Figure 2 The lower half of the cross-sectional view along line B;

[0087] Figure 6 for Figure 1 Sectional view along line C;

[0088] Figure 7 A three-dimensional stepped planer view of an embodiment of a cleaning head configured with a hinged head assembly;

[0089] Figure 8 An exploded view of an embodiment of the cleaning head;

[0090] Figure 9 Another exploded view of an embodiment of the cleaning head;

[0091] Figure 10 An exploded view of the cleaning head housing assembly in an embodiment of the cleaning head;

[0092] Figure 11 Another exploded view of the cleaning head housing assembly in an embodiment of the cleaning head;

[0093] Figure 12 An exploded view from another perspective of the shell cleaning head body assembly of an embodiment of the cleaning head;

[0094] Figure 13 Exploded view of the water tank assembly and hinge head engagement assembly in an embodiment of the cleaning head;

[0095] Figure 14 Another exploded view of the water tank assembly and hinge head engagement assembly in an embodiment of the cleaning head;

[0096] Figure 15 Another exploded view of the water tank assembly and hinge head engagement assembly in an embodiment of the cleaning head;

[0097] Figure 16 An exploded view of the cleaning head housing assembly of the second embodiment of the cleaning head;

[0098] Figure 17 An exploded view of the cleaning head housing assembly of embodiment three;

[0099] Explanation of reference numerals in the attached figures:

[0100] 10. Cleaning head; 10A. Drive motor; 10A1. Drive gear; 10B. Cleaning roller; 110. Cleaning head housing assembly; 120. Water tank assembly; 130. Hinge head latching cover assembly; 140. Trash container; 150. Locking tongue latching plate;

[0101] 110a, Cleaning head housing body; 110a1, Left side wall; 110a2, Right side wall; 110a3, First fixing seat; 110a4, Second fixing seat; 110a5, Clean water inlet; 110a6, Clean water outlet; 110a7, Water guide tip; 110a8, Overflow plate;

[0102] 110b, Detachable production strip assembly; 110c, Extrusion roller; 110c3, Coupling end; 110d1, Left sliding latching block of extrusion roller; 110d2, Right sliding latching block of extrusion roller; 110d4, Bearing; 110d3, Driven gear set; 110e, Wear-resistant ring of cleaning roller end button; 110f, Top cover; 110g, Adapter; 110p, Left decorative sticker; 110q, Right decorative sticker;

[0103] 120a, Water tank body; 120a1, Opening groove; 120a2, Water outlet; 120a3, First connecting seat; 120a4, Second connecting seat; 120a5, Clearance notch; 120b, Water tank sealing sidewall; 120b5, Water tank sealing sidewall clearance notch; 120c, Flip-top assembly;

[0104] 130a, Hinge head engages the cover body; 130a3, First fastening seat; 130a4, Second fastening seat; 130b, First auxiliary roller; 130c, Second auxiliary roller; 130d, Roller pin;

[0105] 20. Connecting rod assembly; 200. Connecting rod body; 201. Lower connecting sleeve assembly; 202. Lower connecting sleeve assembly; 203. Electrical connection harness; 20B. Lower electrical connection plug; 20C. Upper electrical connection plug;

[0106] 30. Handle assembly;

[0107] 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; 406. Locking button support;

[0108] Q, clean water chamber; M, wastewater chamber; N, dry waste chamber; S, wastewater diversion and collection area. Detailed Implementation

[0109] 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.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] Example 1

[0115] This embodiment provides a water-dust circulation cleaning head, which can be used for, for example Figure 1and 2 The cleaning tools shown are described in the attached document. Figures 3-17 The water-dust circulation cleaning head 10 includes a cleaning head housing assembly 110, a cleaning roller 10B, and a squeezing roller 110c. The cleaning head housing assembly 110 includes a cleaning head housing body 110a with two side walls. The two side walls of the cleaning head housing body 110a are a left side wall 110a1 and a right side wall 110a2. One side wall is fixedly connected to a hinge seat (not shown in the attached figure), which is hinged to one end of a drive motor (not shown in the attached figure). The output end of the drive motor is engaged with the other side wall. The cleaning roller 10B is sleeved on the drive motor. 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 couples and drives the cleaning roller 10B to rotate and scrub the surface to be cleaned. The cleaning head housing body 110... A water guide tip 110a7 is provided along the entire axial direction of the cleaning roller and abuts against the outer layer of the cleaning roller in a saturated state, guiding sewage; a squeezing roller 110c is rotatably engaged between the two side walls, squeezing the upper surface of the cleaning roller and being eccentrically positioned close to the water guide tip relative to the cleaning roller; the squeezing roller 110c can be slidably removed from the left side wall 110a1 and / or the right side wall 110a2 of the two side walls; wherein, clean water can be sprayed from the clean water outlet 110a6 provided on one of the side walls to directly rinse the surface of the cleaning roller; a spill prevention plate 110a8 extends upward from the cleaning roller away from the water guide tip and away from the squeezing roller; the water guide tip 110a7, the spill prevention plate 110a8, the squeezing roller 110c and the cleaning roller 10B enclose a water tank space. When the cleaning roller 10B needs to be removed, first press the output end of the other end of the drive motor to retract it and separate it from the corresponding side wall of the cleaning head housing body 110a. Then, rotate the cleaning roller 10B around the hinge seat with the drive motor to separate one end of the drive motor from the side wall. Then, the cleaning roller 10B can be slid out along the outer wall of the drive motor. When installing the cleaning roller 10B back into the cleaning head housing body 110a, simply reverse the steps described above to install the cleaning roller 10B into the cleaning head housing body 110a.

[0116] Furthermore, the output end of the other end of the drive motor is connected to a button assembly (not shown in the attached figure), which is snapped into one side wall of the cleaning head housing body 110a.

[0117] In one specific embodiment, see [reference] Figure 3-4 and Figure 8-9 The water and dust circulation cleaning head 10 also includes a dustbin 140, which can be inserted into / removed from the cleaning head housing body 110a through the lower part of one side wall. The cleaning roller 10B rotates to wipe the floor and can bring the dust into the dustbin 140.

[0118] In one specific embodiment, see [reference] Figure 4 and Figure 7On a cross section perpendicular to the axial direction of the cleaning roller, the cleaning head housing body 110a has a horizontal partition (not shown in the figure) extending downward from the direction of the cleaning roller in the direction of the water guide tip 110a7. The other end of the horizontal partition has a vertical wall (not shown in the figure) extending upward. The left side wall 110a1, the right side wall 110a2, the water guide tip 110a7, the horizontal partition, and the vertical wall together enclose the sewage cavity M.

[0119] In one specific embodiment, see [reference] Figure 4 and Figure 7 The overflow baffle 110a8 has holes or grooves (not shown in the attached diagram) connecting the water tank space and the sewage cavity. Specifically, the holes or grooves are located on one side of the sewage cavity M and are equipped with a one-way filtration device (not shown in the attached diagram). The sewage guided by the guide tip 110a7 can only flow unidirectionally from the water tank space through the one-way filtration device to the sewage cavity M. More specifically, the one-way filtration device is a filter membrane. The overflow baffle 110a8 is connected between the cleaning head housing body 110a and the guide tip 110a7. The overflow baffle 110a8 and the guide tip 110a7 form a sewage guiding and collecting area S. The overflow baffle 110a8 acts as a physical barrier, and the sewage at the guide tip 110a7 flows to the sewage cavity M through the holes or grooves. When the cleaning head 10 experiences vibration (such as when moving on uneven ground or encountering obstacles), the wastewater in the wastewater chamber M forms a water film on the surface of the filter membrane. This water film increases the resistance to reverse osmosis, making it difficult for wastewater to seep back into the wastewater collection area S through the permeable holes. This ensures that wastewater can only flow unidirectionally from the guide tip 110a7 to the wastewater chamber M, preventing secondary contamination of the guide tip 110a7 and related cleaning components. When the cleaning head 10 is subjected to vibration, the combination of the overflow plate 110a8 and the filter membrane stably prevents wastewater backflow, ensuring that the cleaning work is unaffected by vibration and maintaining a consistently clean state. This enhances the adaptability and stability of the cleaning tool under different working conditions.

[0120] In one specific embodiment, see [reference] Figure 4 and Figure 7 The outer layer of the cleaning roller 10B is a sponge layer. When the sponge layer is unsaturated, a gap is formed between the lower surface of the water guide tip 110a7 and the sponge layer, and the seeping sewage drips onto the surface of the cleaning roller 10B or into the cleaning head housing body 110a. The squeeze roller 110c rotates by the friction between itself and the sponge layer.

[0121] In one specific embodiment, see [reference] Figures 10 to 12To facilitate the removal of the extrusion roller 110c from between the left side wall 110a1 and the right side wall 110a2, a left-side sliding locking block 110d1 for the extrusion roller is provided on the left side wall 110a1, and a right-side sliding locking block 110d2 for the extrusion roller is provided on the right side wall 110a2. The two locking blocks are correspondingly positioned, and each block has a groove for the two ends of the extrusion roller 110c to slide into / out. To improve the wear resistance of the two locking blocks, they are made of wear-resistant material. The two locking blocks are securely engaged with the left side wall 110a1 and the right side wall 110a2, respectively. When the user needs to remove the extrusion roller 110c for maintenance, simply slide both ends of the extrusion roller 110c out of the grooves in the two locking blocks to easily remove it.

[0122] In one specific embodiment, see [reference] Figures 10 to 12 In order to improve the wear resistance of one side wall of the two side walls of the end button assembly connected to the output end of the drive motor and the cleaning head housing body 110a, a cleaning roller end button wear ring 110e can be provided on one side wall of the two side walls. The part of the end button assembly mounted on one side wall of the two side walls can rotate relative to the cleaning roller end button wear ring 110e.

[0123] Furthermore, the outer surfaces of the left side wall 110a1 and the right side wall 110a2 can be respectively covered with a left decorative sticker 110p and a right decorative sticker 110q to further enhance the aesthetics of the water and dust circulation cleaning head 10.

[0124] In one specific embodiment, see [reference] Figure 3-4 and Figure 10-12 The water-dust circulation cleaning head 10 also includes an upper cover 110f, which is positioned above the squeezing roller 110c. The side of the upper cover 110f closest to the cleaning roller 10B can be rotated open along an axis parallel to the cleaning roller. An overflow prevention flange (not shown in the attached diagram) extends downwards from the lower surface of the upper cover 110f parallel to the cleaning roller axis. This flange engages with the top of the overflow prevention plate 110a8, isolating the upper part of the water tank space from the sewage cavity M. When the cleaning roller 10B rotates, the liquid adhering to its surface splashes outwards under centrifugal force. The vertical extension of the overflow prevention flange intercepts the horizontal movement path of the splashed sewage. Simultaneously, its lower surface and the engagement surface with the top of the overflow prevention plate 110a8 form the first physical barrier. After being blocked by the overflow prevention flange, the sewage flows back to the sewage guide and collection area S along the inner wall of the overflow prevention plate 110a8, forming a unidirectional flow path and improving the overflow prevention effect.

[0125] In one specific embodiment, the lower surface of the upper cover 110f is provided with an abutment portion (not shown in the figure), which abuts against the extrusion roller 110c to clean the surface of the extrusion roller 110c. The abutment portion abuts against the extrusion roller 110c at intervals along the axial direction of the extrusion roller, and the abutment portion consists of multiple spaced dot-shaped protrusions. The multiple dot-shaped protrusions are distributed at intervals along the axial direction of the extrusion roller 110c, forming a discontinuous contact surface. When the extrusion roller 110c rotates, each protrusion independently applies shearing force to a local area of ​​the surface of the extrusion roller 110c, removing impurities through high-frequency, short-stroke scraping action. Compared with traditional surface contact cleaning, this can effectively improve cleaning quality and efficiency. When the upper cover is closed, the abutment portion forms line contact or surface contact with the surface of the extrusion roller 110c under its own elasticity or pre-tightening force, and removes impurities (such as fibers, dirt, and residual liquid film) attached to the surface of the extrusion roller 110c through the shearing force generated by relative motion, thereby improving cleaning efficiency. When the water and dust circulation cleaning head 10 is working, the cleaning roller 10B rotates to wipe the ground, driving the squeezing roller 110c to rotate. While the squeezing roller 110c rotates and squeezes the surface of the cleaning roller 10B, it easily picks up small pieces of paper scraps and other small pieces of garbage from the ground. The contact part on the lower surface of the upper cover 110f can promptly and effortlessly peel the small pieces of garbage off the surface of the squeezing roller 110c, preventing the small pieces of garbage from accumulating and tangling on the surface of the squeezing roller 110c and affecting the cleaning efficiency.

[0126] When the top cover is closed, its inner surface forms a dynamic sealing structure with the cylindrical surface of the squeezing roller 110c, preventing sewage or impurities from overflowing. During the cleaning process, the squeezing roller 110c applies pressure to the object being cleaned (such as fabrics, floors, etc.) by rotating, while the closed state of the top cover restricts the diffusion path of the squeezed sewage, causing it to enter the sewage chamber M along the guide tip 110a7. When maintenance or cleaning of the squeezing roller 110c is required, the top cover can be opened along the rotation axis, exposing the complete working surface of the squeezing roller 110c for direct operation.

[0127] Furthermore, a hydrophobic and stain-friendly layer can be applied to the surface of the extrusion roller 110c. The stain-friendly layer is made of a stain-adhesive material. Even with the assistance of non-powered cleaning at the contact part of the lower surface of the upper cover 110f, the debris will still accumulate on the surface of the extrusion roller 110c. Users only need to periodically remove the stain-friendly layer from the surface of the extrusion roller 110c and replace it with a new stain-friendly layer.

[0128] In one specific embodiment, see [reference] Figure 16-17The water-dust circulation cleaning head 10 also includes a transmission mechanism, which is located on one side wall that engages with the end button assembly. The transmission mechanism is connected to a drive motor via the end button assembly to simultaneously rotate the cleaning roller 10B and the squeezing roller 110c. Specifically, the transmission mechanism includes a drive gear 10A1 and a first driven wheel set 110d3. The drive gear 10A1 is coupled to the end button assembly. The first driven wheel set 110d3 meshes with the drive gear 10A1 and includes at least one first driven wheel and a second driven wheel (not shown in the figures). The first driven wheel meshes with the drive gear 10A1, and the first driven wheel meshes with the second driven wheel. The second driven wheel is connected to the coupling end 110c3 of the squeezing roller 110c. The water-dust circulation cleaning head 10 can further increase the power to rotate the squeezing roller 110c by configuring the transmission mechanism, thereby further improving the efficiency of squeezing the squeezing roller 110c in squeezing wastewater from the surface of the cleaning roller 10B.

[0129] In one specific embodiment, the extrusion roller 110c includes an extrusion roller body, a bearing 110d4, and an elastic support shaft; the extrusion roller body has an inner cavity; the bearing is located at one end of the extrusion roller body and covers the opening of the inner cavity; the elastic support shaft is located at one end of the extrusion roller body and includes a locking member and a spring, part of the locking member is limited to the inner cavity by the bearing, the locking member is elastically connected to the inner wall of the inner cavity by the spring, and the locking member extending out of the inner cavity can be locked with one side wall of the cleaning head housing body.

[0130] Furthermore, a gear connection part is provided at the other end of the extrusion roller body relative to the bearing and the elastic support shaft. The gear connection part includes a fixing part and a connecting part. The fixing part is connected to the extrusion roller body. The connecting part is connected to the fixing part and connected to the second driven wheel. In use, the drive motor rotates and drives the cleaning roller body to rotate, while driving the drive gear to rotate. The drive gear drives the second driven wheel to rotate, and the second driven wheel drives the extrusion roller body to rotate.

[0131] In one specific embodiment, see [reference] Figure 4 , Figure 7The central axis of the extrusion roller 110c is offset from the central axis of the cleaning roller 10B by an angle θ of 5°-65° in the vertical direction. When the central axis of the squeezing roller 110c deviates vertically by an angle θ of 5° relative to the central axis of the cleaning roller 10B, the squeezing point on the surface of the cleaning roller, which has just been saturated by the squeezing roller 110c and is now undersaturated, continues to rotate counterclockwise. At this point, maintaining an angular velocity of 150rpm-250rpm will not produce any excess squeezed water that would otherwise be centrifugally ejected from that point. Therefore, at this deviation angle, the user does not need to worry about wastewater being centrifugally ejected to the ground at the squeezing point when accelerating the rotation of the cleaning roller 10B while pushing the cleaning head forward. The squeezed wastewater can flow along the surface of the cleaning roller, along the upper surface of the guide tip 110a7, towards the wastewater collection area S, even when the sponge layer on the surface of the cleaning roller is already saturated with water. Due to this eccentric design, even wastewater that is not guided away by the upper surface of the guide tip 110a7 can only continue to flow downwards on the already saturated sponge layer of the cleaning roller surface under the action of gravity, and will eventually be collected by the guide tip 110a7. The wastewater is guided away from the upper surface and will not drip directly onto the ground. When the central axis of the squeezing roller deviates from the central axis of the cleaning roller by an angle θ of 65° in the vertical direction, the projection of the squeezing point from the point closest to the horizontal partition of the cleaning roller in the horizontal direction is less than 3mm (estimated based on the diameter of the cleaning roller in the uncompressed state being 58mm). Even in a saturated state, the sponge layer of the cleaning roller cannot absorb too much wastewater from the cylindrical arc surface from the squeezing point to the point closest to the horizontal partition of the cleaning roller. The foremost point of the water guide tip 110a7 can be located directly below the squeezing roller 110c and adhere to the surface of the squeezed cleaning roller 10B to maintain elastic contact between the water guide tip 110a7 and the cleaning roller 10B. Since the wastewater has been squeezed and discharged by the squeezing roller, there is no need to worry about excess water flowing down the surface of the cleaning roller below the foremost point of the water guide tip 110a7 onto the ground. On the contrary, since the squeezing point is closer to the horizontal partition, the discharged wastewater can be collected in the wastewater diversion and collection area S more quickly. Since the height of the extrusion point at this angle is lower than when the deviation angle θ is 5°, there is less concern about excess saturated water being centrifugally ejected from the extruded point to the ground. Therefore, in this technical solution, a vertical deviation angle θ of 5°-65° between the central axis of the extrusion roller 110c and the central axis of the cleaning roller 10B is preferred.

[0132] In one specific embodiment, see [reference] Figure 4 , Figure 7 , Figure 10-12The water-dust circulation cleaning head 10 also includes a detachable shovel assembly 110b, which is detachably connected to the lower edge of the cleaning head housing body 110a near the cleaning roller 10B, close to the surface to be cleaned, and located between the cleaning roller 10B and the waste container 140. The side of the detachable shovel assembly 110b close to the cleaning roller has an arc shape that conforms to the surface of the cleaning roller. Furthermore, the cleaning head housing body 110a also includes a waste guide (not shown in the figure) disposed between the detachable shovel assembly 110b and the waste container 140; the waste guide or the upper surface of the waste guide and the detachable shovel assembly forms an inclined waste guiding area (not shown in the figure); the waste guiding area is located below the squeezing roller and communicates with the waste container.

[0133] In one specific embodiment, see [reference] Figures 1-7 The water and dust circulation cleaning head 10 also includes a hinge head assembly 40, a water tank assembly 120, and a hinge head locking cover body 130a; the hinge head assembly 40 can connect the water and dust circulation cleaning head 10 and the connecting rod assembly 20 of the cleaning tool.

[0134] For further details, please refer to [link / reference]. Figures 13-15 The water tank assembly 120 includes a water tank body 120a and a sealed sidewall 120b. The water tank body 120a has a hollow interior with a clean water cavity Q for holding clean water, and the clean water cavity Q is connected to the cleaning roller 10B. The cleaning roller 10B and the squeezing roller 110c are rotatably mounted between the two sidewalls of the housing body 110a. The squeezing roller 110c interferes with the cleaning roller 10B to squeeze out wastewater from the cleaning roller 10B. A wastewater cavity M is provided inside the housing body 110a, and a water guiding part 110a7 is located below the squeezing roller 110c to guide wastewater into the wastewater cavity M.

[0135] Specifically, the water tank body 120a has two horizontally semi-cylindrical ends and a square column shape in the middle. The only vertical surface of the water tank body 120a has an opening covering the entire surface. The upper middle part of the water tank body 120a has a notch that can accommodate the rotation of the hinge head assembly 40. A connecting mechanism is provided in the middle of the water tank body 120a. An opening groove 120a1 is provided on the top wall of one end of the water tank body 120a, and a water inlet (not shown in the attached diagram) is provided on the opening groove 120a1. The lower part of the water tank body 120a... The middle part is also provided with a water outlet 120a2; the sealing side wall 120b sealing cover is provided on the opening, and the end of it near the opening groove 120a1 is provided with an avoidance notch 120a5, and the sealing side wall corresponding to the avoidance notch 120a5 is also provided with a sealing side wall avoidance notch 120b5; the hinge head locking cover body 130a can be connected by a connecting mechanism to clamp the hinge assembly 40 between the cleaning head housing body 110a, the water tank body 120a, and the hinge head locking cover body 130a.

[0136] For further details, please refer to [link / reference]. Figures 13-15The water tank body 120a has a clearance notch 120a5 at one end near the opening slot 120a1, and the sealing side wall 120b has a corresponding sealing side wall clearance notch 120b5 at one end near the opening slot 120a1. The lower middle part of the water tank body 120a also has a pipeline channel for connecting the water outlet 120a2 and the water pump 40A installed in the hinge head assembly 40; the water outlet 120a2 is a water outlet connector that protrudes to the side of the pipeline channel.

[0137] For further details, please refer to [link / reference]. Figures 13-15 The water tank assembly 120 also includes a flip-top assembly 120c, which can rotatably open / close the opening slot 120a1. The flip-top assembly 120c includes a flip-top body (not shown in the attached drawing), one end of which has a sealing edge (not shown in the attached drawing) extending downwards opposite the water inlet. A sealing ring (not shown in the attached drawing) is fitted on the outer wall of the sealing edge, sealing the water inlet through the sealing ring. A pin (not shown in the attached drawing) passes through the other end of the flip-top body, with both ends of the pin engaged in pin holes (not shown in the attached drawing) on ​​the wall of the opening slot. The flip-top body can rotate around the pin to open / close the water inlet. A vent hole (not shown in the attached drawing) is provided in the area of ​​the flip-top body opposite the water inlet, connecting to the cavity. A one-way valve (not shown in the attached drawing) is fitted on the side of the vent hole facing the water inlet, preventing water in the cavity from overflowing from the vent hole. A first connecting seat 120a3 is provided on the top wall of the middle part of the water tank body, and a second connecting seat 120a4 is provided on the front wall of the middle part of the water tank body. The connecting mechanism includes the first connecting seat 120a3 and the second connecting seat 120a4. Two connecting ears (not shown in the attached figure) are provided at both ends of the sealed side wall. The water tank assembly 120 can be fixedly connected to the cleaning head housing body 110a through the two connecting ears.

[0138] During use, the water-dust circulation cleaning process is as follows: the clean water chamber Q in the water tank body 120a contains clean water, and the clean water chamber Q is connected to the cleaning roller 10B. Clean water can flow from the clean water chamber Q to the cleaning roller 10B, keeping the cleaning roller 10B moist. During the cleaning process, the moist cleaning roller 10B wipes and cleans the ground. The wastewater collection process is as follows: the squeezing roller 110c interferes with the cleaning roller 10B. When the cleaning roller 10B rotates, the squeezing roller 110c squeezes the cleaning roller 10B, squeezing out the wastewater it has absorbed. The water guide tip 110a7 is located below the squeezing roller 110c. Under the action of gravity, the squeezed wastewater is guided along the water guide tip 110a7 to the wastewater chamber M, realizing the collection of wastewater, thus completing the water-dust circulation cleaning process. The entire process does not require an additional brush roller.

[0139] The design of the water inlet and flip-top assembly 120c simplifies the water filling operation, allowing users to easily fill the water chamber Q without complicated steps, thus improving ease of use. The excellent sealing performance of the flip-top assembly 120c when closed effectively prevents water leakage during the use of the cleaning tool, avoiding damage to the internal electronic components and mechanical structure of the cleaning head 10 caused by water leakage, and also reducing potential safety hazards caused by slippery floors. The protective function of the flip-top assembly 120c on the water inlet prevents external dust and debris from entering the water chamber Q, ensuring the cleanliness of the water inside the chamber Q. This ensures that the cleaning roller 10B can use clean water for floor cleaning, improving cleaning effectiveness and extending the service life of components such as the cleaning roller 10B.

[0140] In existing technologies, the water tank assembly 120 is inserted horizontally into the cleaning head 10 or vertically clipped onto the upright, resulting in a heavy overall weight for the floor scrubber and a cumbersome feel when pushed or pulled by the user. This solution, through a rational design of the water and dust circulation cleaning head 10's structure, directly connects the water tank assembly 120 to the cleaning head 10's housing, and the clean water chamber Q and wastewater chamber M are horizontally isolated and arranged inside the cleaning head 10, rather than being suspended from the upright or inserted at a high position. This layout lowers the overall center of gravity, reduces the overall height of the cleaning head 10, and decreases the vertical load. Compared to existing technologies, this allows for a lighter and more nimble operating feel for the cleaning tool, improving the user experience.

[0141] In one specific embodiment, see [reference] Figure 5-6 , Figure 12 The cleaning head housing body 110a has an interconnected clean water inlet 110a5 and a clean water outlet 110a6, both located on one side wall of the cleaning head housing body 110a. The clean water outlet 110a6 corresponds to the cleaning roller 10B. The cleaning head housing body 110a is connected to an adapter 110g, which is connected to both the clean water inlet 110a5 and the clean water cavity Q. This adapter allows clean water from the clean water cavity Q to be sequentially introduced to the clean water inlet 110a5 and the clean water outlet 110a6, ultimately reaching the cleaning roller 10B and forming a clean water channel. The tight connection between the adapter 110g and the clean water cavity Q and the clean water inlet 110a5 effectively prevents water leakage during transmission. Furthermore, the internal clean water channel design of the cleaning head housing body 110a is optimized to prevent water leakage caused by pipe bends or loose connections, ensuring the stable operation of the cleaning system.

[0142] In one specific embodiment, see [reference] Figure 8-9 , Figure 13-15The cleaning head housing body 110a is provided with a first fixing seat 110a3 and a second fixing seat 110a4. The water tank body 120a is provided with a first connecting seat 120a3 and a second connecting seat 120a4. The hinge head latching cover body 130a is also provided with a first fastening seat 130a3 and a second fastening seat 130a4. The two fastening seats can cooperate with the two fixing seats and the two connecting seats to clamp the hinge head assembly 40 between the cleaning head housing body 110a, the water tank body 120a, and the hinge head latching cover body 130a. The hinge head latching cover body 130a is also provided with a first auxiliary roller 130b and a second auxiliary roller 130c. The two auxiliary rollers can be fixed to the hinge head latching cover body 130a by roller pins 130d. The first auxiliary roller 130b and the second auxiliary roller 130c can rotate around the roller pins 130d. In actual use, the number and position of the first auxiliary roller 130b and the second auxiliary roller 130c can be flexibly configured according to the actual usage scenario.

[0143] In one specific embodiment, see [reference] Figure 1-2 , Figure 4 , Figure 7 , Figure 15 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.

[0144] Furthermore, the hinge head assembly 40 includes a hinge head upper shell 401, a water pump 40A, and a hinge head lower shell 402. 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 10B of the cleaning head 10. The hinge head lower shell 402 is sandwiched between the cleaning head housing assembly 110, the water tank assembly 120, and the hinge head locking cover body 130a. The bottom of the hinge head upper shell 401 is fitted into the top opening of the hinge head lower shell 402. The locking tongue assembly is restricted to the hinge. The lower housing of the chain head includes a locking tongue 403, which can partially extend out of the lower housing 402 of the hinge head to engage with the locking tongue engaging plate 150 mounted on the cleaning head housing body 110a. The locking tongue 403 can rotate together with the lower housing 402 of the hinge head. When the locking tongue 403 rotates out of the locked position, the hinge head assembly 40 can continue to rotate freely until the connecting rod assembly 20 and the cleaning head housing assembly 110 are at 180°. When the locking tongue 403 rotates back to the locked position, the hinge head assembly 40 and the cleaning head housing assembly 110 are at 85°.

[0145] Furthermore, the latch assembly also includes a latch support 404. The upward-facing side of the latch support 404 can clamp the water pump 40A inside the hinge head housing 401. The downward-facing side of the latch support 404 abuts against the first spring, and the other side of the first spring abuts against the latch 403. The latch 403 is clamped between the latch support 404 and the hinge head lower housing 402 and can partially extend out of the hinge head lower housing 402. The hinge head upper housing contains a locking button 405 and a locking button support 406. The outward-facing side of the locking button support 406 abuts against the second spring, and the other side of the second spring abuts against the locking button 405. The locking button 405 partially extends out of the hinge head upper housing 402 to achieve the engagement of the hinge head assembly 40 with the connecting rod assembly 20. The top of the hinge head housing 401 has a locking 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 assembly 30 via a wire harness that is electrically connected to the hinge head electrical connector 40B. The hinge head lower housing 402 includes a rotating cylinder and a sleeve cylinder perpendicular to the rotating cylinder. The rotating cylinder has openings at both ends, through which the inlet and outlet pipes of the water pump 40A and the wire harness that is electrically connected to the hinge head electrical connector 40B can pass. The bottom of the hinge head housing 401 is fitted into the top opening of the sleeve cylinder, and the hinge head lower housing 402 can rotate around the axis of the rotating cylinder.

[0146] Furthermore, the hinge head upper shell 401 and the hinge head lower shell 402 are rotatably sleeved together. At least one nut post extends from the bottom of the hinge head lower shell 402 towards its top opening. The hinge head upper shell 401 has a screw groove on its peripheral wall corresponding to the nut post. The hinge head upper shell and the hinge head lower shell are fixedly connected by at least one screw. The hinge head upper shell 401 includes an upper snap-fit ​​portion and a lower sleeve portion. The peripheral wall of the upper snap-fit ​​portion has a screw groove corresponding to the nut post, and the upper snap-fit ​​portion is detachably snap-fitted to the rod assembly 20. The peripheral wall of the lower sleeve portion has a clearance groove corresponding to the nut post, and the lower sleeve portion is detachably fixedly connected to the hinge head lower shell 402. The hinge head shell 401 also includes a fixing step ring, which is located between the upper snap-fit ​​part and the lower sleeve part. When the lower sleeve part of the hinge head shell 401 is fitted into the top opening of the hinge head lower shell 402, the screw can pass through the screw groove and fasten the hinge head lower shell 402 to the hinge head shell 401 with the upper surface of the fixing step ring facing down.

[0147] In one specific embodiment, see [reference] Figure 4 , Figure 7The housing body 110a has a sewage chamber M and a dry waste chamber N, which are separated into upper and lower sections. The sewage chamber M is equipped with a water guide tip 110a7 and a sewage overflow prevention plate 110a8. The water guide tip 110a7 is arc-shaped and interferes with the outer wiping layer 10B of the cleaning roller. The sewage overflow prevention plate 110a8 is vertically arranged, forming a sewage flow collection area S between the water guide tip 110a7 and the sewage overflow prevention plate 110a8. A waste container assembly 140 can be inserted laterally into the dry waste chamber N. The dry waste chamber N is specifically designed to collect dry or lightweight waste such as hair, dust, and paper scraps. Its design allows for the laterally inserted waste container assembly 140, facilitating removal and emptying, and preventing adhesion and clumping after contact with liquids.

[0148] In this embodiment of the invention, the cleaning head housing body 110a is divided into a sewage chamber M and a dry waste chamber N. The dry waste chamber N is specifically responsible for collecting dry or lightweight waste such as hair, dust, and paper scraps. The sewage chamber M is specifically responsible for collecting liquid sewage, thus achieving functional specialization. A waste box assembly 140 can also be inserted horizontally into the dry waste chamber N for easy removal and emptying, avoiding the problem of adhesion and clumping after contact with liquid. The cleaning head housing assembly 110 provided in this embodiment of the invention has a sewage chamber M and a dry waste chamber N that are separated vertically. Through the vertically layered structural design, the two functional chambers are arranged side by side within the limited space of the cleaning head 10, greatly improving space utilization. Furthermore, the dry and wet separation design fundamentally solves the pain points of dry waste becoming moldy, smelly, and difficult to clean after being soaked in sewage, maintaining the hygiene inside the collection chamber and simplifying the subsequent waste disposal process.

[0149] 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.

[0150] Example 2

[0151] Based on the same inventive concept, see [reference] Figure 1 and Figure 2This embodiment proposes a cleaning tool, including a connecting rod assembly 20, a handle assembly 30, a hinge head assembly 40, and a water-dust circulation cleaning head 10 as described in Embodiment 1. One end of the connecting rod assembly 20 is connected to the hinge head assembly 40 of the water-dust circulation cleaning head 10, and the other end of the connecting rod assembly 20 is connected to the handle assembly 30. The handle assembly 30 houses a main control board and a battery pack. The main control board can be electrically connected to the drive motor 10A in the water-dust circulation cleaning head 10 and the water pump 40A in the hinge head assembly 40 via an electrical connection harness that passes through the rod assembly. The main control board controls the operation of the drive motor 10A and the water pump 40A.

[0152] 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-dust circulation cleaning head, characterized in that, include: The cleaning head housing assembly includes a cleaning head housing body with two side walls, wherein a hinge seat is fixedly connected to one side wall, the hinge seat is hinged to one end of a drive motor, and the output end of the other end of the drive motor is engaged with the other side wall. The cleaning roller is mounted on the drive motor. The cleaning roller includes a cleaning roller body and a cleaning roller outer layer covering the outer periphery of the cleaning roller body. The output end couples and drives the cleaning roller to rotate and scrub the surface to be cleaned. The cleaning head housing body is provided with a water guide tip that abuts against the cleaning roller outer layer in the saturated state along the entire cleaning roller axis and guides the wastewater. The squeezing roller is rotatably engaged between the two side walls, squeezing the upper surface of the cleaning roller and being eccentrically positioned relative to the cleaning roller and close to the water guide tip. The squeezing roller can be slid out from the left side wall and / or the right side wall. Among them, clean water can be sprayed from the clean water outlet set on one of the side walls to directly rinse the surface of the cleaning roller. The cleaning head housing body, which is away from the squeezing roller and is located away from the water guide tip, extends upward from the cleaning roller with an anti-overflow plate. The water guide tip, the anti-overflow plate, the squeezing roller and the cleaning roller enclose a water tank space. Preferably, the water-dust circulation cleaning head further 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, in a cross section perpendicular to the axial direction of the cleaning roller, the cleaning head housing body has a horizontal partition extending in the direction away from the cleaning roller below the water guide tip, and a vertical wall extending upward at the other end of the horizontal partition. The two side walls, the water guide tip, the horizontal partition, and the vertical wall together enclose a sewage cavity. Preferably, the overflow shield has holes or grooves connecting the water tank space and the sewage cavity; Preferably, the hole or groove is located on one side of the sewage cavity, and a one-way filtration device is provided, so that the sewage guided by the guide tip can only flow in one direction from the water tank space through the one-way filtration device to the sewage cavity.

2. The water-dust circulation cleaning head as described in claim 1, characterized in that, Also includes: The top cover, located above the extrusion roller, can be rotated open along the axis parallel to the cleaning roller on the side closest to the cleaning roller. Preferably, the lower surface of the top cover extends downward parallel to the cleaning roller axis with an anti-overflow flange, which fits with the top of the anti-overflow plate to isolate the upper part of the water tank space from the sewage cavity. Preferably, the lower surface of the upper cover is provided with an abutting part, which abuts against the extrusion roller to clean the surface of the extrusion roller. Preferably, the abutting portion abuts against the extrusion roller at intervals along the axial direction of the extrusion roller, and the abutting portion consists of a plurality of spaced dot-shaped protrusions.

3. The water-dust circulation cleaning head as described in claim 1, characterized in that, The outer layer of the cleaning roller is a sponge layer. Preferably, when the sponge layer is in an unsaturated state, a gap is formed between the lower surface of the water guide tip and the sponge layer, and the seeping sewage drips onto the cleaning roller body or the cleaning head housing body. Preferably, the extrusion roller is driven to rotate by the friction between itself and the sponge layer. Preferably, the outer periphery of the extrusion roller is also fitted with a dirt-resistant layer, which can be replaced periodically to avoid the trouble of cleaning the extrusion roller. Preferably, the output end of the other end of the drive motor is connected to a button assembly, which is snapped into the other side wall.

4. The water-dust circulation cleaning head as described in claim 1, characterized in that, Also includes: The transmission mechanism is located on one side wall that engages with the end button assembly. It is connected to the drive motor via the end button assembly to simultaneously drive the cleaning roller and the squeezing roller to rotate. Preferably, the transmission mechanism includes: The drive gear is coupled to the end knob assembly; The first driven gear set, which meshes with the driving gear, includes at least one first driven gear and a second driven gear. The first driven gear meshes with the driving gear, the first driven gear meshes with the second driven gear, and the second driven gear is connected to the coupling end of the extrusion roller in a drive connection.

5. The water-dust circulation cleaning head as described in claim 1, characterized in that, 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. Preferably, the cleaning head housing body also includes a waste guide disposed between the removable shovel assembly and the waste container; the upper surface of the waste guide or the waste guide and the removable shovel assembly forms an inclined waste guiding area; the waste guiding area is located below the squeezing roller and communicates with the waste container.

6. The water-dust circulation cleaning head as described in claim 4, characterized in that, The extrusion roller includes: The extrusion roller body has an inner cavity; The bearing is located at one end of the extrusion roller body and is covered at the opening of the inner cavity; An elastic support shaft is located at one end of the extrusion roller body and includes a locking element and a spring. Part of the locking element is limited to the inner cavity by the bearing. The locking element is elastically connected to the inner wall of the inner cavity through the spring. The locking element extending out of the inner cavity can be locked to one side wall of the cleaning head housing body. Preferably, a gear connection portion is provided at the other end of the extrusion roller body relative to the bearing and the elastic support shaft, the gear connection portion comprising: The fixing part is connected to the extrusion roller body; The connecting part is connected to the fixing part and also to the second driven wheel; In use, the drive motor rotates, causing the cleaning roller body to rotate, which in turn drives the drive gear to rotate. The drive gear then drives the second driven wheel to rotate, and the second driven wheel in turn drives the squeezing roller body to rotate.

7. The water-dust circulation cleaning head as described in claim 1, characterized in that, The central axis of the extrusion roller is offset from the central axis of the cleaning roller by 5°-65° in the vertical direction. Preferably, a sliding latching block is provided on the left side wall and the right side wall respectively, and the sliding latching block is provided with a groove for the end of the extrusion roller to slide in / out; When it is necessary to remove the extrusion rollers, both ends of the extrusion rollers can be slid out from the grooves in the sliding locking blocks of each extrusion roller; When the cleaning head is working, the two ends of the squeeze roller can rotate at the ends of the chute. Preferably, the water-dust circulation cleaning head further includes: Hinge head assembly, connecting rod assembly for connecting water and dust circulation cleaning head and cleaning tools; The water tank assembly includes a water tank body and a sealing sidewall. The water tank body has a hollow cavity with two transverse semi-cylindrical ends and a square column shape in the middle. The only vertical surface of the water tank body has an opening that covers the entire surface. The upper middle part of the water tank body has a notch that can accommodate the rotation of the hinge head assembly. The middle part of the water tank body has a connecting mechanism. The top wall at one end of the water tank body has a water inlet, and the lower middle part of the water tank body also has a water outlet. The sealing sidewall sealing cover is located on the opening, and the end of it near the opening groove has a sealing sidewall clearance notch corresponding to the clearance notch. The hinge head latching cover body can be clamped between the cleaning head housing body, the water tank body, and the hinge head latching cover body through a connecting mechanism. Preferably, the water tank body has a clearance notch at one end near the opening slot, and the sealing sidewall has a corresponding clearance notch at one end near the opening slot. Preferably, the lower middle part of the water tank body is also provided with a pipeline channel for connecting the water outlet and the water pump installed in the hinge head assembly; the water outlet is a water outlet connector protruding to the side of the pipeline channel. Preferably, an opening groove is formed on the top wall of one end of the water tank body, and the water inlet is located on the opening groove. Preferably, the water tank assembly also includes: Flip-top assembly with a rotating opening / closing slot. Preferably, the flip cover assembly includes a flip cover body, one end of which has a sealing edge extending downwards from the water inlet, and a sealing ring is fitted on the outer wall of the sealing edge. The sealing edge seals the water inlet through the sealing ring. The other end of the flip cover body has a pin, and both ends of the pin are engaged in pin holes on the wall of the opening groove. The flip cover body can rotate around the pin to open / close the water inlet. Preferably, the area of ​​the flip cover body facing the water inlet is provided with a vent hole that connects to the cavity, and a one-way valve is fitted on the side of the vent hole facing the water inlet so that water in the cavity cannot overflow from the vent hole.

8. The water-dust circulation cleaning head as described in claim 7, characterized in that, A first connecting seat is provided on the top wall of the middle part of the water tank body, and a second connecting seat is provided on the front wall of the middle part of the water tank body. The connecting mechanism includes the first connecting seat and the second connecting seat. Preferably, the sealed sidewall has two connecting ears at both ends, which can be used to fix the water tank assembly to the cleaning head housing body. Preferably, the hinge head assembly can rotate about an axis parallel to the cleaning roller, forming an angle of 85°-180° with the cleaning head housing assembly; when the hinge head assembly rotates away from the locked position, the hinge head assembly can continue to rotate freely until the connecting rod assembly forms a 180° angle with the cleaning head housing assembly; when the hinge head assembly rotates back to the locked position, the hinge head assembly forms an 85° angle with the cleaning head housing assembly. Preferably, the hinge head assembly includes: The hinge head shell has one end that can be detachably snapped into the connecting rod assembly; A water pump delivers clean water to the surface of the cleaning rollers on the cleaning head; The lower hinge head housing is sandwiched between the cleaning head housing assembly, the water tank assembly, and the hinge head locking cover body, with the bottom of the upper hinge head housing fitted into the top opening of the lower hinge head housing. The latch assembly, which is confined within the lower housing of the hinge head, includes a latch that can partially extend out of the lower housing of the hinge head to engage with a latch engagement plate mounted on the cleaning head housing body. The latch can rotate together with the lower housing of the hinge head. 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°.

9. The water-dust circulation cleaning head as described in claim 8, characterized in that, The latch assembly also includes a latch support member. The upward-facing side of the latch support member can clamp the water pump inside the hinge head housing, and the downward-facing side of the latch support member abuts against the first spring. The other side of the first spring abuts against the latch. The latch is clamped between the latch support member and the lower hinge head housing and can partially extend out of the lower hinge head housing. Preferably, the hinge head shell is equipped with a locking button and a locking button support. The outer side of the locking button support abuts against the second spring, and the other side of the second spring abuts against the locking button. The locking button extends out of the hinge head shell to achieve the engagement of the hinge head assembly with the connecting rod assembly. Preferably, the top of the hinge head shell has a locking hole for engaging the hinge head electrical connection plug. The water pump is electrically connected to the hinge head electrical connection plug, and the water pump can be electrically connected to the connecting rod assembly and the handle assembly through a wire harness that is electrically connected to the hinge head electrical connection plug. Preferably, the lower shell of the hinge head includes a rotating cylinder and a sleeve cylinder perpendicular to the rotating cylinder. The rotating cylinder has openings at both ends, through which the inlet and outlet pipes of the water pump and the wire harness electrically connected to the hinge head electrical connector can pass. The bottom of the upper shell of the hinge head is fitted into the top opening of the sleeve cylinder, and the lower shell of the hinge head can rotate around the axis of the rotating cylinder. Preferably, the upper hinge head shell and the lower hinge head shell are rotatably connected. Preferably, the bottom of the lower hinge head shell extends toward its top opening with at least one nut post, and the peripheral wall of the upper hinge head shell is provided with a screw groove corresponding to the nut post. The upper hinge head shell and the lower hinge head shell are fixedly connected by at least one screw. Preferably, the hinge head housing includes: The upper snap-fit ​​part has a screw groove on its peripheral wall that corresponds to the nut post, and the upper snap-fit ​​part can be detachably snapped into the rod assembly; The lower sleeve has a relief groove on its peripheral wall that corresponds to the nut post, and the lower sleeve is detachably and fixedly connected to the lower shell of the hinge head. Preferably, the hinge head housing also includes: A fixed step ring is located between the upper snap-fit ​​part and the lower sleeve part. When the lower sleeve part of the hinge head shell is fitted into the top opening of the hinge head lower shell, the screw can pass through the screw groove and fasten the hinge head lower shell to the hinge head upper shell with the upper surface of the fixed step ring facing down.

10. A cleaning tool, characterized in that, The device includes a connecting rod assembly, a handle, and a water-dust circulation cleaning head as described in any one of claims 8-9. One end of the connecting rod assembly is connected to the hinge head assembly of the water-dust circulation cleaning head, and the other end of the connecting rod assembly is connected to the handle. A main control board and a battery pack are installed inside the handle. The main control board can be electrically connected to the drive motor inside the water-dust circulation cleaning head and the water pump inside the hinge head assembly through an electrical connection harness that passes through the rod assembly. The main control board controls the operation of the drive motor and the water pump.

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