Hinge head assembly and cleaning head

Abstract

The invention discloses a hinge head assembly and a cleaning head. The hinge head assembly comprises a hinge head upper shell, a water pump, a hinge head lower shell and a spring bolt assembly, and one end of the hinge head upper shell is detachably connected with a connecting rod assembly in a clamped mode; the water pump conveys clean water to the cleaning roller surface of the cleaning head; the hinge head lower shell is clamped among the cleaning head shell assembly, the water tank assembly and the hinge head clamping cover body, and the bottom of the hinge head upper shell is connected into an opening in the top of the hinge head lower shell in a sleeved mode. The spring bolt assembly is limited in the hinge head lower shell, the spring bolt assembly comprises a spring bolt, the spring bolt can partially extend out of the hinge head lower shell so as to be clamped and installed on a spring bolt clamping plate on the cleaning head shell body, and the spring bolt can rotate along with the hinge head lower shell; wherein an included angle of 85-180 degrees can be formed between the hinge head assembly and the cleaning head; when the spring bolt rotates out and leaves the locking position, the hinge head assembly can continuously and freely rotate until the connecting rod assembly and the cleaning head form an angle of 180 degrees; and when the spring bolt rotates back to the locking position, the hinge head assembly and the cleaning head form an angle of 85 degrees.

Description

Technical Field

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

[0002] Early floor cleaning tools used by people included brooms, mops, and floor scrubbers, which relied primarily on manual operation. With technological advancements, the demands for floor cleaning tools gradually increased, leading to the emergence of vacuum cleaners. These electric vacuum cleaners use negative pressure to suck up debris and dust from the floor. Classified by cleaning methods and the flow path of small and large debris, this type of technology is generally categorized as air-dust circulation technology. However, due to the limitations of its working principle, vacuum cleaners cannot clean some firmly attached debris and stains. Therefore, a new type of floor scrubber, the "water-dust circulation" scrubber, appeared. This scrubber uses a motor to drive a cleaning drum to wipe the floor, and is also equipped with a water supply system and a water tank to clean the cleaning drum, thus achieving a perfect floor cleaning.

[0003] The applicant's Chinese utility model patent CN222149926U discloses a hinge device and a floor scrubber. The hinge device includes a rotating hinge body and a connecting body. The connecting body is used to engage with the upright post; the rotating hinge body is used to engage with the floor scrubber's mop head; one end of the connecting body is rotated and engaged with the rotating hinge body at a bending angle; the connecting body and the rotating hinge body house the floor scrubber's water pump circulation connection pipeline and the circuit connecting the water pump to the battery. This utility model achieves a detachable connection between the hinge device and the upright post and the floor scrubber's mop head through the connecting body and the rotating hinge body. Simultaneously, the hinge device houses the floor scrubber's water pump circulation connection pipeline and the circuit connecting the water pump to the battery, solving the technical problem of low maintenance and replacement efficiency in existing floor scrubber hinge devices.

[0004] The applicant's Chinese utility model patent CN222149929U discloses a hinge device for a floor scrubber, including an upper connecting body, a shell connector, and a lower connecting body. The upper connecting body is detachably connected to the floor scrubber's connecting rod; the lower connecting body is detachably connected to the floor scrubber's mop head; the shell connector is used to fix the upper and lower connecting bodies at an angle; the upper and lower connecting bodies house a floor scrubber water pump circulation connection pipeline and a circuit connecting the water pump to a power source. This utility model achieves detachable connection between the upper and lower connecting bodies of the hinge device and the floor scrubber's connecting rod and mop head, while simultaneously housing the floor scrubber water pump circulation connection pipeline and the circuit connecting the water pump to a power source within the hinge device, thus solving the technical problem of low maintenance and replacement efficiency in existing floor scrubber hinge devices.

[0005] In existing technologies, floor scrubbers using the "water and dust circulation" technology all employ hinge devices to connect the mop head and the upright. However, the hinge device simultaneously carries both electrical and water circuits upwards and downwards. This means that when the hinge device connects upwards to the upright, it is necessary to ensure a reliable connection between the water and electrical circuits. For users who are using this type of modular floor scrubber for the first time, completing a reliable electrical and water circuit connection in one go is quite troublesome. If not careful, "water leakage" can also cause a short circuit in the electrical connection. Therefore, it is necessary to find a technical solution to improve this problem and reduce the assembly difficulty for users who are using modular floor scrubbers for the first time. Summary of the Invention

[0006] This application provides a cleaning tool that, while achieving "water and dust circulation," prevents water leakage and short circuits at the hinge assembly connecting the mop head and the upright of the floor scrubber, thus reducing the assembly difficulty for first-time users of modular floor scrubbers. The specific technical solution is as follows:

[0007] In a first aspect, this application provides a hinge head assembly, comprising:

[0008] The hinge head shell has one end that can be detachably snapped into the connecting rod assembly;

[0009] A water pump delivers clean water to the surface of the cleaning rollers on the cleaning head;

[0010] 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.

[0011] 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.

[0012] The hinge head assembly can rotate around an axis parallel to the cleaning roller, forming an angle of 85°-180° with the cleaning head. When the locking tongue rotates out of the locking position, the hinge head assembly can continue to rotate freely until the connecting rod assembly forms a 180° angle with the cleaning head. When the locking tongue rotates back to the locking position, the hinge head assembly forms an 85° angle with the cleaning head.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] In one or more alternative embodiments, the upper hinge head shell and the lower hinge head shell are rotatably fitted together.

[0018] 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.

[0019] In one or more alternative embodiments, the hinge head housing includes:

[0020] 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;

[0021] 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.

[0022] In one or more alternative embodiments, the hinge head housing further includes:

[0023] 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.

[0024] In one or more alternative embodiments, after the hinge head assembly, connecting rod assembly, and cleaning head are connected, the lower shell surface of the hinge head partially exposes the cleaning head and is located between the connecting rod assembly and the cleaning head, while the upper shell of the hinge head is concealed within the connecting rod assembly.

[0025] In one or more alternative embodiments, the inlet and outlet water pipes include:

[0026] The water inlet pipe connects to the water pump inlet at one end and to the water tank assembly outlet of the cleaning head at the other end.

[0027] The water outlet pipe is connected to the water outlet of the water pump at one end and to one end of the clean water pipe adapter at the other end. The other end of the clean water pipe adapter is inserted into the clean water channel inlet set on one side wall of the cleaning head housing. The side wall is also provided with a clean water channel outlet. The clean water sprayed from the clean water channel outlet can be sprayed directly onto the surface of the cleaning roller.

[0028] In one or more alternative embodiments, the locking button includes a locking button body and an abutment flange surrounding the bottom of the locking button body. The locking button body can partially extend beyond the upper latching portion of the hinge head shell. The abutment flange limits the locking button body to only extending a certain height beyond the upper latching portion, which is only the wall thickness height of the connecting rod assembly. The locking button body and the abutment flange are integrally formed.

[0029] In one or more alternative embodiments, the hinge head assembly is used to dock with the connecting rod assembly. Through the pivoting between the hinge head assembly and the cleaning head, the connecting rod assembly can be pivotally connected to the cleaning head. The other end of the connecting rod assembly can be connected to a handle. The main control board and battery pack can be installed in the handle. The main control board can be electrically connected to the drive motor that drives the cleaning roller to rotate in the cleaning head and the water pump in the hinge head assembly through an electrical connection harness passing through the connecting rod assembly. The main control board controls the operation of the drive motor and the water pump.

[0030] Secondly, this application provides a cleaning head, characterized in that it comprises:

[0031] The cleaning head housing assembly includes a cleaning head housing body with two side walls, one side wall being hinged to one end of a drive motor, and the output end of the other end of the drive motor being snapped into the other side wall.

[0032] The cleaning roller is mounted on the drive motor, and the output end couples to drive 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 outer layer of the cleaning roller in the saturated state along the entire axial direction of the cleaning roller and guides the sewage.

[0033] The squeezing roller is rotatably engaged between the two side walls, squeezing the upper surface of the cleaning roller and is set eccentrically relative to the cleaning roller and close to the water guide tip.

[0034] The water tank assembly is detachably connected to the cleaning head housing assembly, providing clean water for rinsing the surface of the cleaning roller;

[0035] The hinge head assembly as described in the first aspect;

[0036] The hinge head latches the cover body, and can hold the hinge head assembly, cleaning head housing assembly, and water tank assembly to be detachably connected into a whole;

[0037] The hinge head assembly, cleaning head housing assembly, water tank assembly, and hinge head locking cover body are pivotable about an axis parallel to the cleaning roller.

[0038] In one or more alternative embodiments, a hinge seat is fixedly connected to one side wall of the cleaning head housing body, and the hinge seat is hinged to one end of the drive motor.

[0039] In one or more alternative embodiments, a clean water outlet is provided on one side wall of the cleaning head housing body, from which clean water can be sprayed to directly rinse the surface of the cleaning roller. A spill prevention plate extends upward away from the cleaning roller from the water guide tip. The water guide tip, spill prevention plate, squeezing roller and cleaning roller enclose a water tank space.

[0040] In one or more alternative embodiments, the cleaning head further includes:

[0041] The trash can can be inserted into / removed from the cleaning head housing body through one of the side walls. The rotating cleaning roller can carry trash into the trash can while wiping the floor.

[0042] In one or more alternative embodiments, on a cross section perpendicular to the axial direction of the cleaning roller, the cleaning head housing body is further provided with a transverse partition extending away from the cleaning roller above the waste box, which connects to the water guide tip. The other end of the transverse partition extends upward with a vertical wall. The two side walls, the water guide tip, the transverse partition, and the vertical wall together enclose the sewage cavity.

[0043] In one or more alternative embodiments, the overflow shield is provided with holes or grooves connecting the water tank space and the sewage cavity.

[0044] 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.

[0045] In one or more alternative embodiments, the cleaning head further includes:

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] In one or more alternative embodiments, the cleaning roller includes a cleaning roller body, the surface of which is provided with a sponge layer.

[0051] In one or more alternative embodiments, when the sponge layer of the cleaning roller body is in an unsaturated state, a gap is formed between the lower surface of the water guide tip and the cleaning roller body, and the seeping sewage drips onto the cleaning roller body or the cleaning head housing.

[0052] In one or more alternative embodiments, the squeeze roller is driven to rotate by the friction of the cleaning roller body.

[0053] In one or more alternative embodiments, the output end of the other end of the drive motor is connected to an end-torsion assembly, which is engaged with the other side wall.

[0054] In one or more alternative embodiments, the cleaning head further includes:

[0055] The transmission mechanism is located on one side wall that engages with the end-twist assembly. It is connected to the drive motor via the end-twist assembly to simultaneously drive the cleaning roller and the extrusion roller to rotate.

[0056] In one or more alternative embodiments, the transmission mechanism includes:

[0057] The drive gear is coupled to the end torque assembly;

[0058] 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.

[0059] In one or more alternative embodiments, the cleaning head further includes:

[0060] 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.

[0061] 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.

[0062] In one or more alternative embodiments, the extrusion roller includes:

[0063] The extrusion roller body has an inner cavity;

[0064] The bearing is located at one end of the extrusion roller body and is covered at the opening of the inner cavity;

[0065] 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.

[0066] 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:

[0067] The fixing part is connected to the extrusion roller body;

[0068] The connecting part is connected to the fixing part and also to the second driven wheel;

[0069] 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.

[0070] 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°.

[0071] Compared to existing technologies, the beneficial effects of this application are as follows:

[0072] This application provides a hinge head assembly for connecting a cleaning head and a connecting rod assembly. The hinge head assembly includes a hinge head upper shell, a water pump, a hinge head lower shell, and a locking tongue assembly. One end of the hinge head upper shell is detachably snapped into the connecting rod assembly. The water pump delivers clean water to the surface of the cleaning roller of the cleaning head. The hinge head lower shell is sandwiched between the cleaning head housing assembly, the water tank assembly, and the hinge head locking cover body. The hinge head assembly contains a water pump. The inlet and outlet pipes connecting the water pump and the internal wiring harness electrically connected to the hinge head electrical connector can respectively pass through one opening in the rotating cylinder of the hinge head lower shell to prevent water leakage inside the hinge head assembly from causing a short circuit. The external wiring harness electrically connected to the hinge head electrical connector can be electrically connected to the water pump without worrying about waterproofing. Compared to existing technologies where both the water pump and water tank are located above the hinge head, the present application's solution places the water tank at the same height as the cleaning head, and the water pump is also located only slightly higher than the water tank. This shortens the overall path length of clean water from the water tank through the water pump and the clean water pipeline to the cleaning roller. It also significantly reduces the large amount of unnecessary water flow height difference during the water pump's operation, improving the pump's working conditions and reducing its power consumption and noise. The combination of the hinge head assembly with the cleaning head housing assembly, water tank assembly, and hinge head locking cover also facilitates easy removal of the pump from the hinge head assembly for maintenance and replacement in case of pump failure. This application provides a hinge head assembly, in which a water pump is built into the hinge head housing for supplying clean water to the surface of the cleaning roller of the cleaning head. The hinge head lower housing is snapped into the middle of the rear end of the cleaning head and hinges the cleaning head. The lower end of the hinge head lower housing is symmetrically provided with a first opening and a second opening. The inlet and outlet pipes of the water pump can pass through the first opening, and the wires connected to the hinge head electrical connector can pass through the second opening. The wires connected to the hinge head electrical connector are connected to the cleaning roller drive motor inside the cleaning head. The hinge head electrical connector is also electrically connected to the water pump, realizing the separation of water and electrical circuits, preventing water leakage inside the hinge head assembly from causing short circuits, and greatly improving the safety and service life.

[0073] On the other hand, the bottom of the hinge head upper shell of the hinge head assembly is fitted into the top opening of the hinge head lower shell. The hinge head lower shell 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 wiring harness electrically connected to the hinge head electrical connector can pass. The bottom of the hinge head upper shell is fitted into the top opening of the sleeve cylinder. The hinge head lower shell can rotate around the axis of the rotating cylinder. The locking tongue assembly is confined within the hinge head lower shell. The locking tongue assembly includes a locking tongue, which can partially extend out of the hinge head lower shell to engage with the locking tongue engaging plate mounted on the cleaning head housing body. The locking tongue can rotate together with the hinge head lower shell. The hinge head assembly can form an angle of 85°-180° with the cleaning head. When the locking tongue rotates out of 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. When the locking tongue rotates back to the locked position, the hinge head assembly forms an 85° angle with the cleaning head. When the user holds the handle, the handle drives the connecting rod assembly, which in turn drives the hinge head assembly. The cylindrical walls at both ends of the hinge head assembly's rotating cylinder interact with the cleaning head housing assembly and the corresponding arc-shaped support arms on the hinge head engaging cover, enabling pivoting around an axis parallel to the cleaning roller. When rotation of the connecting rod assembly around its own axis is required, relative rotation between the hinge head upper and lower housings can be achieved. This provides the user with a very easy and convenient experience, allowing for smooth rotation of the cleaning head and flexible forward, backward, and turning maneuvers. When the hinge head assembly returns to the locked position, it cannot rotate in either direction, ensuring the connecting rod assembly and handle remain stably upright.

[0074] On the other hand, installing a locking tongue plate on the cleaning head housing assembly or water tank assembly can further strengthen the locking strength of the hinge head assembly when returning to the locked position. Since the cleaning tool frequently requires switching between the locked and unlocked positions when being taken out and put back in place, each switch causes the locking tongue and locking tongue plate to abut against each other, disrupting the contact state and causing the corresponding position of the cleaning head housing assembly or water tank assembly to be subjected to varying stress. Installing the locking tongue plate on the cleaning head housing assembly or water tank assembly increases the rigidity and fatigue resistance of the entire load-bearing component, improving the user's feel when returning the connecting rod assembly to its original position while still extending the overall lifespan of the cleaning tool. Attached Figure Description

[0075] 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.

[0076] Figure 1 A perspective view of an embodiment of the hinge head assembly;

[0077] Figure 2 Another perspective view of an embodiment of the hinge head assembly;

[0078] Figure 3 for Figure 1 Sectional view along line A;

[0079] Figure 4 for Figure 2 Sectional view along line B;

[0080] Figure 5 An exploded view of an embodiment of the hinge head assembly;

[0081] Figure 6 Another exploded view of an embodiment of the hinge head assembly;

[0082] Figure 7 This is a schematic diagram showing the assembly and installation of the water tank assembly, hinge head assembly, and hinge head latching cover assembly.

[0083] Figure 8 A schematic diagram illustrating an embodiment of a cleaning head assembly consisting of a cleaning head housing assembly, a water tank assembly, a hinge head assembly, and a hinge head latching cover assembly;

[0084] Figure 9 Another schematic diagram from a perspective shows an embodiment of a cleaning head assembly consisting of a cleaning head housing assembly, a water tank assembly, a hinge head assembly, and a hinge head latching cover assembly.

[0085] Figure 10 A perspective view of an embodiment of a cleaning head assembly consisting of a cleaning head housing assembly, a water tank assembly, a hinge head assembly, and a hinge head latching cover assembly;

[0086] Figure 11 A perspective view of an embodiment of a cleaning tool equipped with a hinge head assembly;

[0087] Figure 12 Another perspective view of an embodiment of a cleaning tool equipped with a hinge head assembly;

[0088] Figure 13 for Figure 11 The lower half of the cross-sectional view along line C;

[0089] Figure 14 for Figure 12 The lower half of the cross-sectional view along line D;

[0090] Figure 15 for Figure 12 Sectional view along line E;

[0091] Figure 16A three-dimensional stepped planer view of an embodiment of a cleaning head configured with a hinged head assembly;

[0092] Explanation of reference numerals in the attached figures:

[0093] 10. Cleaning head; 10A. Drive motor; 10B. Cleaning roller; 110. Cleaning head housing assembly; 120. Water tank assembly; 130. Hinge head latching cover assembly; 140. Trash can assembly; 150. Locking tongue latching plate;

[0094] 110a, Cleaning head housing body; 110a1, Left side wall; 110a2, Right side wall; 110a3, First fixing seat; 110a4, Second fixing seat; 110a5, Clean water channel inlet; 110a6, Clean water channel outlet; 110a7, Water guide tip; 110a8, Overflow plate;

[0095] 110b, Detachable production strip assembly; 110c, Extrusion roller; 110d1, Left sliding latching block of extrusion roller; 110d2, Right sliding latching block of extrusion roller; 110e, Wear-resistant ring of cleaning roller end button; 110f, Top cover; 110g, Clean water pipe adapter; 110p, Left decorative sticker; 110q, Right decorative sticker;

[0096] 120a, Water tank body; 120a1, Opening groove; 120a2, Water outlet; 120a3, First connecting seat; 120a4, Second connecting seat; 120a5, Water tank body clearance notch; 120b, Water tank sealing sidewall; 120b5, Water tank sealing sidewall clearance notch; 120c, Rotating flip cover assembly;

[0097] 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;

[0098] 20. Connecting rod assembly; 200. Connecting rod body; 201. Lower connecting sleeve assembly; 203. Electrical connection harness; 20B. Lower electrical connection plug; 20C. Upper electrical connection plug;

[0099] 30. Handle assembly;

[0100] 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;

[0101] Q, clean water chamber; M, wastewater chamber; N, dry waste chamber; S, wastewater diversion and collection area. Detailed Implementation

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] 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.

[0107] Example 1

[0108] This embodiment provides a hinge head assembly that can be used for, for example Figure 11 and12 The cleaning tools shown are described in the attached document. Figures 1-6 , Figure 10 , Figure 14 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 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 confined within the hinge head lower shell 402 and includes a locking tongue 403. 403 can partially extend out of the hinge head lower shell 402 to engage with the locking tongue latching plate 150 mounted on the cleaning head housing body 110a. The locking tongue 403 can rotate together with the hinge head lower shell 402. The hinge head assembly 40 can rotate about an axis parallel to the cleaning roller, and the hinge head assembly 40 forms an angle of 85°-180° with the cleaning head 110. When the locking tongue 403 rotates out of the locking 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 10. When the locking tongue 403 rotates back to the locking position, the hinge head assembly 40 forms an 85° angle with the cleaning head 10. When a user needs to use the cleaning tool, they need to hold the handle 30 first. The handle 30 drives the connecting rod assembly 20, which in turn drives the hinge head assembly 40. Using the hinge head assembly 40 as the pivot point, the user can rotate the cleaning tool except for the cleaning head 10. 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 10 are at any position between 90° and 180°. When the user pushes or pulls the cleaning head 10 forward or backward, the cleaning head 10 can be rotated in any direction.

[0109] Compared to the existing technology where both the water pump and the water tank are located above the hinge head, in this embodiment of the invention, the hinge head assembly 40 is equipped with a water pump 40A. The inlet and outlet pipes connecting the water pump 40A and the internal wiring harness electrically connected to the hinge head electrical connector 40B can respectively pass through one opening in the rotating cylinder of the lower shell 402 of the hinge head, preventing water leakage inside the hinge head assembly 40 from causing a short circuit. The external wiring harness electrically connected to the hinge head electrical connector 40B can be electrically connected to the water pump 40A without worrying about waterproofing. The technical solution of this application sets the water tank assembly 120 at the same height as the cleaning head 10, and the water pump 40A is also set at a position only slightly higher than the water tank assembly 120. This shortens the overall length of the clean water path from the water tank assembly 120 through the water pump 40A to the surface of the cleaning roller 40B, and also greatly reduces a large number of unnecessary water flow height differences during the water pump 40A's water flow process. This can improve the working conditions of the water pump, reduce the power consumption and noise of the water pump 40A, and the combination of the hinge head assembly 40 with the cleaning head housing assembly 110, the water tank assembly 120, and the hinge head locking cover body 130a also makes it convenient to remove the water pump 40A from the hinge head assembly 40 for maintenance and replacement when the water pump 40A fails.

[0110] In one specific embodiment, see [reference] Figures 3 to 6 , Figure 14 , Figure 16 The latch assembly also includes a latch support 404. The upward side of the latch support 404 can clamp the water pump 40A inside the hinge head housing 401. The downward 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.

[0111] The hinge head assembly 40 provided in this embodiment includes a latch support 404, a first spring, and a latch 403. This configuration allows the latch 403 to maintain a ready-to-go posture while rotating freely with the hinge head assembly 40. When the user rotates the hinge head assembly 40 via the handle 30 and the connecting rod assembly 20, there is a constant "damping" sensation as the latch 403 slides on the latch engagement plate 150. When the latch 403 rotates out of / back to the locked position, the "stepping" of the protrusions on the latch engagement plate 150 allows the user to feel a slight vibration, like a "click," when holding the handle, promptly informing the user that the hinge head assembly 40 is rotating out of / back to the locked position. The locking tongue assembly makes switching between locking and unlocking modes very simple and intuitive. The user simply holds the handle assembly and gently rotates the connecting rod assembly 20 downwards, causing the hinge head assembly 40 to turn downwards and press down. A slight vibration, producing a "click" sound, indicates that the hinge head assembly 40 has been locked / unlocked relative to the cleaning head 10. This intuitive operation, consistent with modern home appliances, has a low learning curve. When the cleaning tool needs to be stored upright or placed in a cabinet, the user holds the handle assembly and gently rotates the connecting rod assembly 20 upwards, causing the hinge head assembly 40 to lock in the locked position, ensuring the machine remains stable and prevents it from tipping over due to accidental collisions.

[0112] In one specific embodiment, see [reference] Figure 3 , Figures 5 to 6 , Figure 10 , Figure 14 , Figure 16The hinge head housing contains a locking button 405 and a locking button support 406. The outer side of the locking button support 406 abuts against a second spring, and the other side of the second spring abuts against the locking button 405. The locking button 405 extends partially out of the hinge head housing 401 to engage the hinge head assembly 40 with the connecting rod assembly 20. The top of the hinge head housing 401 has a locking hole (not shown in the attached diagram) 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 wiring harness that is electrically connected to the hinge head electrical connector 40B. 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 (not shown in the attached drawing), and the upper snap-fit ​​portion is detachably snap-fitted to the rod assembly 20. The peripheral wall of the lower sleeve portion is provided with a clearance groove corresponding to the nut post (not shown in the attached drawing), and the lower sleeve portion is detachably and fixedly connected to the hinge head lower shell 402. The hinge head shell also includes a fixing step ring (not shown in the attached drawing), which is located between the upper snap-fit ​​portion and the lower sleeve portion. When the lower sleeve portion 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. The locking button 405 includes a locking button body and an abutment flange (not shown in the figure) surrounding the bottom of the locking button body. The locking button body can extend partially out of the upper latching part of the hinge head shell. The abutment flange limits the locking button body to only the extension height of the upper latching part, which is only the wall thickness height of the connecting rod assembly 20. The locking button body and the abutment flange are integrally formed.

[0113] The hinge head assembly 40 provided in this embodiment makes separating the hinge head assembly 40 from the connecting rod assembly 20 very simple and intuitive. Simply press the locking button 405, causing the part of the locking button body extending from the upper latching part of the hinge head shell to retract inwards until its top surface is flush with the surface of the upper latching part. Then, the entire connecting rod assembly 20 can be pulled upwards. The user can easily separate the two by pressing the locking button 405 with one hand and pulling the connecting rod assembly 20 upwards with the other. This operation is convenient and has a low learning curve. Because the cleaning head 10 with the hinge head assembly 40 installed can be easily separated from the connecting rod assembly 20, and further combined with the easy separation of the connecting rod assembly 20 from the handle assembly 30, cleaning tool manufacturers can package the cleaning tool separately as three main components: the cleaning head 10 with the hinge head assembly 40, the connecting rod assembly 20, and the handle assembly 30. This eliminates the need for separate packaging of the entire cleaning tool, further reducing the volume required for transport packaging, improving the efficiency of the cleaning tool in the distribution process, and lowering the logistics costs of the cleaning tool.

[0114] In one specific embodiment, see [reference] Figures 1 to 9 , Figure 13 , Figure 15 The hinge head lower housing 402 includes a rotating cylinder and a sleeve 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 wiring harness electrically connected to the hinge head electrical connector 40B can pass. The bottom of the hinge head upper housing 401 is fitted into the top opening of the sleeve, and the hinge head lower housing 402 can rotate around the axis of the rotating cylinder. At least one nut post extends from the bottom of the hinge head lower housing 402 towards its top opening. A screw groove corresponding to the nut post is provided on the peripheral wall of the hinge head upper housing 401. The hinge head upper housing 401 and the hinge head lower housing 402 are fixedly connected by at least one screw.

[0115] The hinge head assembly 40 provided in this embodiment allows the internal wiring harness, which connects the inlet and outlet pipes of the water pump 40A and the hinge head electrical connector 40B, to pass through one opening in the rotating cylinder of the lower hinge head housing 402. This prevents short circuits caused by water leakage inside the hinge head assembly 40. The external wiring harness connected to the hinge head electrical connector 40B can be electrically connected to the water pump without concern for waterproofing. The combination of the hinge head assembly 40 with the cleaning head housing assembly 110, the water tank assembly 120, and the hinge head locking cover body 130a, and the internal structure of the hinge head assembly 40 including the upper hinge head housing 401, the water pump 40A, the lower hinge head housing 402, and the locking tongue assembly, facilitates easy removal of the water pump 40A from the hinge head assembly 40 for maintenance and replacement in case of water pump 40A failure.

[0116] In one specific embodiment, in addition to the aforementioned technical solution where the hinge head upper shell 401 and hinge head lower shell 402 are fixedly connected by at least one screw, the hinge head upper shell 401 and hinge head lower shell 402 can also be rotatably sleeved together. They do not require fasteners for fixation, but can only rotate relative to each other and cannot be separated at the mating surface. Specifically, both the hinge head upper shell 401 and hinge head lower shell 402 have mating edges extending radially (not shown in the figures) on their mating surfaces. One of them also has a wrapping edge (not shown in the figures) extending from the outer edge of its mating surface with the other, which can wrap around the other's mating edge, thus enabling them to rotate relative to each other without separation.

[0117] The hinge head assembly 40 provided in this embodiment allows the cleaning head 10 and the connecting rod assembly 20 to easily rotate relative to each other through the relative rotation of the upper hinge head shell 401 and the lower hinge head shell 402. When the user pushes and pulls the cleaning head for cleaning, the cleaning head 10 can be flexibly turned as needed, improving the user experience when using cleaning tools.

[0118] In one specific embodiment, see [reference] Figures 10 to 14The hinge head assembly 20 is used to dock with the connecting rod assembly 20. Through the pivoting between the hinge head assembly 40 and the cleaning head 10, the connecting rod assembly 20 can be pivotally connected to the cleaning head 10. The other end of the connecting rod assembly 20 can be connected to the handle assembly 30. The main control board and battery pack can be installed in the handle assembly 30. The main control board can be electrically connected to the drive motor 10A that drives the cleaning roller 10B to rotate in the cleaning head 10 and the water pump 40A in the hinge head assembly 40 through the electrical connection harness passing through the connecting rod assembly. The main control board controls the operation of the drive motor 10A and the water pump 40A.

[0119] Example 2

[0120] This embodiment provides a cleaning head that can be used for, for example Figure 11 and 12 The cleaning tools shown are described in the attached document. Figures 7-16 The cleaning head 10 includes a cleaning head housing assembly 110, a cleaning roller 10B, a squeezing roller 110c, a water tank assembly 120, a hinge head engaging cover body 130a, and a hinge head assembly 40 as described in Embodiment 1. The cleaning head housing assembly 110 includes a cleaning head housing body 110a with two side walls (110a1, 110a2). One side wall is hinged to one end of the drive motor 10B, and the output end of the other end of the drive motor 10B is engaged with the other side wall. The cleaning roller 10B is sleeved on the drive motor 10A, and the output end couples and drives the cleaning roller 10B to rotate and scrub the surface to be cleaned. The cleaning head housing body 110a has a saturated cover along the entire axial direction of the cleaning roller. The outer layer abuts against and guides the wastewater with a water guide tip 110a7; 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; the water tank assembly 120 is detachably connected to the cleaning head housing assembly 110, providing clean water for rinsing the surface of the cleaning roller 10B; the hinge head latching cover body 130a can clamp the hinge head assembly 40 and the cleaning head housing assembly 110 and the water tank assembly 120, which are detachably connected to form a whole; wherein the hinge head assembly 40, the cleaning head housing assembly 110, the water tank assembly 120, and the hinge head latching cover body 130a are pivotable about an axis parallel to the cleaning roller.

[0121] The cleaning head 10 provided in this embodiment, compared with the prior art where both the water pump and water tank are set above the hinge head, has a water tank assembly 120 set at the same height as the cleaning head 10, and the water pump 40A is also set at a position only slightly higher than the water tank assembly 120. This shortens the overall clean water path length from the water tank assembly 120 through the water pump 40A to the cleaning roller 40B via the clean water pipeline. It also greatly reduces a large number of unnecessary water flow height differences during the water pump 40A's water flow process, which can improve the working conditions of the water pump 40A, reduce the power consumption and noise of the water pump 40A. The combination of the hinge head assembly 40 with the cleaning head housing assembly 110, the water tank assembly 120, and the hinge head locking cover body 130a also facilitates the convenient removal of the water pump 40A from the hinge head assembly 40 for maintenance and replacement when the water pump 40A fails. Excess water is effectively removed by the water guide tip 110a7 of the cleaning head housing assembly 110, ensuring that the outer wiping layer of the cleaning roller 10B remains in a suitable dry-wet state. This guarantees the wiping effect on the ground while preventing it from becoming "muddy and watery" due to excessive wetness, which would contaminate the ground. The vertically arranged anti-overflow plate 110a8 of the cleaning head housing assembly 110 acts as a baffle, limiting the water flow range in the sewage diversion and collection area S. It completely separates the sewage from other parts of the sewage cavity M in a unidirectional flow manner to prevent backflow, greatly suppressing the sloshing of sewage in the sewage cavity M. This avoids the "clunking" sound of water during cleaning and the feeling of instability caused by water sloshing, thus improving the quality and quietness of the product. The cleaning head housing 110a is equipped with a water guide tip 110a7, an overflow plate 110a8, a squeeze roller 110c, and a cleaning roller 10B, which together form a water tank space. Wastewater guided by the water guide tip 110a7 can only flow unidirectionally from the water tank space through a unidirectional filter device to the wastewater chamber M. Simultaneously, the squeeze roller 110c and the cleaning roller 10B are interference-fitted, allowing the squeeze roller 110c to squeeze the cleaning roller 10B, squeezing out the wastewater absorbed by the cleaning roller 10B and containing it in the water tank space before it flows unidirectionally to the wastewater chamber M. The overflow plate 110a8 is placed between the water tank space and the wastewater chamber M to prevent wastewater from being splashed back onto the cleaning roller 10B surface due to agitation in the wastewater chamber M when the user quickly pushes and pulls the cleaning head 10 for cleaning, thus preventing the wastewater from affecting cleaning efficiency. Since the squeezing roller 110c is positioned eccentrically on the cleaning roller, 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. The seeping sewage will flow down from the cleaning roller 10B or into the closed water tank space under the action of gravity, thus avoiding dripping onto the surface to be cleaned and affecting the cleanliness.

[0122] The cleaning head 10 provided in this embodiment eliminates the independent brush roller and its driving mechanism found in traditional cleaning heads. It relies solely on the interaction between the cleaning roller 10B and the squeezing roller 110c to physically squeeze and recycle wastewater, eliminating 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. Through a rational design of the cleaning head 110's structure, the water tank assembly 120 is directly connected to the cleaning head housing assembly 110, and the clean water chamber Q and wastewater chamber M are laterally isolated inside the cleaning head 10, rather than being suspended from a pole or inserted at a high position. This layout lowers the overall center of gravity, reduces the overall height and longitudinal load of the cleaning head 10, and compared to existing technologies, allows the cleaning tool to have a lighter operating feel, improving the user experience.

[0123] In one specific embodiment, see [reference] Figures 11-16 A hinge seat is fixedly connected to one side wall of the cleaning head housing body 110a, and the hinge seat is hinged to one end of the drive motor 10A. A clean water outlet 110a6 is provided on one side wall of the cleaning head housing body 110a, from which clean water can be sprayed to directly rinse the surface of the cleaning roller 10B. A spill prevention plate 110a8 extends upward from the cleaning roller 10B relative to the water guide tip 110a7 away from the squeeze roller 110c. The water guide tip 110a7, the spill prevention plate 110a8, the squeeze roller 110c and the cleaning roller 10B enclose a water tank space.

[0124] 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.

[0125] In one specific embodiment, see [reference] Figures 7-10 , Figure 14 , Figure 16 The cleaning head 10 also includes a trash can 140; the trash can 140 can be inserted into / removed from the cleaning head housing body 110a through one side wall of the cleaning head housing assembly 110, and the cleaning roller 10B can carry trash into the trash can 140 by rotating and wiping the floor.

[0126] In one specific embodiment, see [reference] Figures 8-10 , Figure 14 , Figure 16 On 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.

[0127] In one specific embodiment, see [reference] Figure 14 , Figure 16 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 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.

[0128] In one specific embodiment, see [reference] Figures 8-10 , Figure 14The cleaning head housing assembly 110 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 vertically extending portion 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.

[0129] 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.

[0130] 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.

[0131] 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.

[0132] In one specific embodiment, see [reference] Figures 14-16 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 housing body 110a. The squeeze roller 110c rotates by the friction between itself and the sponge layer.

[0133] In one specific embodiment, to facilitate the removal of the extrusion roller 110c from between the left and right side walls, a left-side sliding locking block for the extrusion roller is provided on the left side wall, and a right-side sliding locking block for the extrusion roller is provided on the right side wall. The two locking blocks are correspondingly arranged, and each locking block has a groove for the two ends of the extrusion roller 110c to slide into / out respectively. To improve the wear resistance of the two locking blocks, the two locking blocks are made of wear-resistant material, and the two locking blocks are securely locked to the left and right side walls respectively. When the user needs to remove the extrusion roller 110c for maintenance, he / she only needs to slide the two ends of the extrusion roller 110c out of the grooves of the two locking blocks to easily remove the extrusion roller 110c.

[0134] In one specific embodiment, 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-resistant ring can be provided on one side wall of the two side walls, and 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-resistant ring.

[0135] Furthermore, the outer surfaces of the left and right walls can be covered with a left decorative sticker 110p and a right decorative sticker 110q, respectively, to further enhance the aesthetics of the water and dust circulation cleaning head 10.

[0136] In one specific embodiment, the cleaning head housing assembly 110 further includes a transmission mechanism disposed on a 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 drive the cleaning roller 10B and the extrusion roller 110c to rotate. Specifically, the transmission mechanism includes a drive gear and a first driven wheel set; the drive gear is coupled to the end button assembly; the first driven wheel set meshes with the drive gear and includes at least one first driven wheel and a second driven wheel. The first driven wheel meshes with the drive gear, the first driven wheel meshes with the second driven wheel, and the second driven wheel is connected to the coupling end of the extrusion roller 110c. The cleaning head 10 can further increase the power to drive the extrusion roller 110c to rotate by configuring the transmission mechanism, thereby further improving the efficiency of the extrusion roller 110c in squeezing wastewater from the surface of the cleaning roller 10B.

[0137] In one specific embodiment, the extrusion roller 110c includes an extrusion roller body, a bearing, 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.

[0138] 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.

[0139] In one specific embodiment, see [reference] Figure 14 , Figure 16The 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.

[0140] In one specific embodiment, see [reference] Figures 8-10 , Figures 14-16The cleaning head housing body 110a has a U-shaped docking mechanism extending outward from the middle of the cleaning roller 10B. The cleaning head housing assembly 110 also includes a water tank assembly 120, a hinge head assembly 40, and a hinge head locking cover assembly 130. The water tank assembly 120 includes a water tank body 120a sealed as a whole and a sealed side wall 120b, providing clean water to the cleaning roller 10B. The water tank body 120a has a hollow clean water cavity Q inside, with its two ends being transversely semi-cylindrical and its middle part being square columnar. The upper middle part of the water tank body 120a has a section that can accommodate the hinge head assembly 40 to rotate. The water tank body 120a has a notch-shaped opening and a connecting mechanism is provided in the middle. The hinge head assembly 40 can connect the shell body 110a, the water tank assembly 120, and the connecting rod assembly 20. The hinge head latching cover assembly 130 includes a hinge head latching cover body 130a, which can cooperate with the connecting mechanism of the water tank body and the docking mechanism of the shell body to clamp the hinge head assembly 40 between the water tank body 120a, the shell body 110a, and the hinge head latching cover body 130a, and allow the hinge head assembly 40 to rotate around an axis parallel to the cleaning roller axis.

[0141] 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 hinge head assembly, characterized in that, include: 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. The hinge head assembly can rotate around an axis parallel to the cleaning roller, forming an angle of 85°-180° with the cleaning head; when the locking tongue rotates out of the locking position, the hinge head assembly can continue to rotate freely until the connecting rod assembly forms a 180° angle with the cleaning head; when the locking tongue rotates back to the locking position, the hinge head assembly forms an 85° angle with the cleaning head. Preferably, the latch assembly further includes a latch support member. The upward side of the latch support member can clamp the water pump inside the hinge head housing, and the downward 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 outward 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 part extends out of the hinge head shell to realize 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.

2. The hinge head assembly as claimed in claim 1, characterized in that, The hinge head upper shell and the hinge head lower shell are rotatably connected. Preferably, at least one nut post extends from the bottom of the lower hinge head shell toward its top opening, 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 provided 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. Preferably, after the hinge head assembly, connecting rod assembly, and cleaning head are connected, the lower shell surface of the hinge head partially exposes the cleaning head and is located between the connecting rod assembly and the cleaning head, while the upper shell of the hinge head is concealed within the connecting rod assembly.

3. The hinge head assembly as claimed in claim 1, characterized in that, Inlet and outlet water pipes include: The water inlet pipe connects to the water pump inlet at one end and to the water tank assembly outlet of the cleaning head at the other end. The water outlet pipe is connected to the water outlet of the water pump at one end and to one end of the clean water pipe adapter at the other end. The other end of the clean water pipe adapter is inserted into the clean water channel inlet set on one side wall of the cleaning head housing. The side wall is also provided with a clean water channel outlet. The clean water sprayed from the clean water channel outlet can be sprayed directly onto the surface of the cleaning roller. Preferably, the locking button includes a locking button body and an abutting flange around the bottom of the locking button body. The locking button body can partially extend out of the upper latching portion of the hinge head shell. The abutting flange limits the locking button body to only extending the upper latching portion by a height that is only the wall thickness height of the connecting rod assembly. The locking button body and the abutting flange are integrally formed. Preferably, the hinge head assembly is used to dock with the connecting rod assembly. Through the pivoting between the hinge head assembly and the cleaning head, the connecting rod assembly can be pivotally connected to the cleaning head. The other end of the connecting rod assembly can be connected to a handle. The main control board and battery pack can be installed in the handle. The main control board can be electrically connected to the drive motor that drives the cleaning roller to rotate in the cleaning head and the water pump in the hinge head assembly through the electrical connection harness passing through the connecting rod assembly. The main control board controls the operation of the drive motor and the water pump.

4. A cleaning head, characterized in that, include: The cleaning head housing assembly includes a cleaning head housing body with two side walls, one side wall being hinged to one end of a drive motor, and the output end of the other end of the drive motor being snapped into the other side wall. The cleaning roller is mounted on the drive motor, and the output end couples to drive 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 outer layer of the cleaning roller in the saturated state along the entire axial direction of the cleaning roller and guides the sewage. The squeezing roller is rotatably engaged between the two side walls, squeezing the upper surface of the cleaning roller and is set eccentrically relative to the cleaning roller and close to the water guide tip. The water tank assembly is detachably connected to the cleaning head housing assembly, providing clean water for rinsing the surface of the cleaning roller; The hinge head assembly as described in any one of claims 1-3; The hinge head latches the cover body, and can hold the hinge head assembly, cleaning head housing assembly, and water tank assembly to be detachably connected into a whole; The hinge head assembly, cleaning head housing assembly, water tank assembly, and hinge head locking cover body are pivotable about an axis parallel to the cleaning roller.

5. The cleaning head as described in claim 4, characterized in that, A hinge seat is fixedly connected to one side wall of the cleaning head housing, and the hinge seat is hinged to one end of the drive motor.

6. The cleaning head as described in claim 4, characterized in that, A clean water outlet is provided on one side wall of the cleaning head housing body. Clean water can be sprayed out from the clean water outlet to directly rinse the surface of the cleaning roller. A spill prevention plate extends upward away from the cleaning roller from the water guide tip and the squeezing roller. The water guide tip, spill prevention plate, squeezing roller and cleaning roller enclose a water tank space. Preferably, the cleaning head further includes: The trash can can be inserted into / removed from the cleaning head housing through one of the side walls. The rotating cleaning roller can carry trash into the trash can while wiping the floor. Preferably, on a cross section perpendicular to the axial direction of the cleaning roller, the cleaning head housing body is also provided with a horizontal partition extending away from the cleaning roller above the waste box, which is connected to the water guide tip. The other end of the horizontal partition extends upward with a vertical wall. The two side walls, the water guide tip, the horizontal partition, and the vertical wall together enclose the 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 water guide tip can only flow in one direction from the water tank space through the one-way filtration device to the sewage cavity. Preferably, the cleaning head further includes: The top cover is located above the extrusion roller, and the side closest to the cleaning roller can be rotated open along the axis parallel 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.

7. The cleaning head as described in claim 4, characterized in that, The cleaning roller includes a cleaning roller body, the surface of which is provided with a sponge layer; Preferably, when the sponge layer of the cleaning roller body is in an unsaturated state, a gap is formed between the lower surface of the water guide tip and the cleaning roller body, and the seeping sewage drips onto the cleaning roller body or the cleaning head housing.

8. The cleaning head as described in claim 7, characterized in that, The squeezing roller is driven to rotate by the friction of the cleaning roller body.

9. The cleaning head as described in claim 7, characterized in that, The output end of the drive motor is connected to an end torque assembly, which is snapped into the other side wall. Preferably, the cleaning head further includes: The transmission mechanism is located on one side wall that engages with the end-twist assembly. It is connected to the drive motor via the end-twist 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 torque 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. Preferably, the cleaning head further 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 dustbin; 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 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; Preferably, 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 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 through the spring. The locking member 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.

10. The cleaning head as described in claim 4, 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.

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