Cleaning tool

Abstract

The invention is suitable for the technical field of cleaning equipment, and discloses a cleaning tool which comprises a cleaning head, and the cleaning head comprises a shell, a cleaning roller and a driving motor; the cleaning roller is arranged on the shell; one end of the driving motor is connected with the shell through a universal joint to drive the cleaning roller to work; the cleaning roller comprises a roller bracket and a roller sponge; the roller sponge covers the outer side of the roller support, water locking mechanisms for preventing liquid from flowing out during roller cleaning are arranged at the two ends of the roller sponge respectively, each water locking mechanism comprises an inclined face which is arranged at any position between the outer diameter and the inner diameter in the thickness direction of the roller sponge and inclines inwards, and the water locking mechanisms form an annular arc face in the thickness direction of the roller sponge. The length of the watertight path is increased, and liquid is prevented from flowing out between the roller sponge and the shell when the roller is cleaned. According to the water locking mechanism, the elastic deformation amount between the end of the sponge layer and the side wall of the cleaning head shell is reduced, and the expansion supporting force on the side wall of the cleaning head shell generated in the process that the roller sponge becomes dry and hard is reduced.

Description

[0001] This application is a divisional application of Chinese patent application number 2022102290412, invention name “A water-leakage-proof cleaning roller and cleaning tool”, and application date March 8, 2022, the contents of which are incorporated herein by reference. Technical Field

[0002] The present invention relates to the technical field of cleaning equipment, and in particular to a cleaning tool. Background Art

[0003] To clean the cleaning drum, a closed cleaning chamber connected to a water supply is typically set up to partially clean the drum. Fresh water is then supplied to clean the drum, and the remaining wastewater is then removed. The cleaning drum is designed to cover as much of the cleaning area as possible. The ends of the sponge layer of the cleaning drum have an elastic interference fit with the sidewalls of the cleaning head housing across the width of the cleaning head. This prevents leakage from the portion of the cleaning drum enclosed in the cleaning chamber when flushed by high-speed water.

[0004] In the prior art, a cleaning roller is typically secured to a motor on one side of a cleaning head at one end, with the other end snapping onto the other side of the cleaning head via a resilient button. To prevent the cleaning roller from releasing water during high-speed operation, the sponge layer and the side walls are significantly compressed, creating significant resistance during high-speed operation, which can reduce motor efficiency and overall battery life for the floor cleaner, resulting in a poor user experience. Furthermore, if the compression between the sponge layer and the side walls is minimal, water leakage between the sponge layer and the side walls is likely to occur. Therefore, it is necessary to find a solution that can both lock in moisture in the sponge layer of the cleaning roller and reduce friction between the sponge layer and the side walls of the cleaning head. Summary of the Invention

[0005] The main technical problem solved by the present invention is to provide a cleaning tool, the cleaning roller of the cleaning tool can avoid water leakage from the side of the roller and reduce the friction of the roller.

[0006] In order to solve the above problems, the present invention provides a cleaning tool, including a cleaning head, the cleaning head including:

[0007] case;

[0008] A cleaning roller is provided in the housing;

[0009] A driving motor, one end of which is connected to the housing by a universal joint, drives the cleaning roller to work;

[0010] Among them, the cleaning roller includes:

[0011] Roller bracket;

[0012] The drum sponge is wrapped around the outside of the drum bracket, and a water-locking mechanism is provided at both ends of the drum sponge to prevent the liquid from flowing out when the drum is cleaned. The water-locking mechanism includes an inward-inclined inclined surface at any position between the outer diameter and the inner diameter in the thickness direction of the drum sponge. The water-locking mechanism forms an annular arc surface in the thickness of the drum sponge, increases the length of the watertight path, and prevents the liquid from flowing out from between the drum sponge and the shell when the drum is cleaned.

[0013] In one or some embodiments, the annular arc surface is provided with a water-locking layer having a density greater than that of the roller sponge, and the surface of the water-locking layer is smooth.

[0014] In one or some embodiments, a cavity is provided at one end of the roller bracket, and a telescopic shaft mechanism is provided at the other end of the roller bracket.

[0015] In one or some embodiments, the telescopic shaft mechanism includes:

[0016] Fixed seat;

[0017] The rotating shaft has one end fixed to the fixed seat and can only move in a straight line;

[0018] an elastic component, sleeved on the rotating shaft to keep the rotating shaft in an extended state;

[0019] A shaft cover, covering the end of the shaft;

[0020] A bearing is provided between the rotating shaft cover and the rotating shaft. When force is applied to the rotating shaft cover, the rotating shaft moves linearly inward. When force is released, the elastic component causes the rotating shaft and the rotating shaft cover to extend outward.

[0021] In one or some embodiments, the other end of the driving motor is connected to the rotating shaft in the cavity through a shaft connector, and drives the roller bracket and the roller sponge to rotate through the rotating shaft.

[0022] In one or some embodiments, the roller sponge includes a roller sponge body, and the water locking mechanism further includes water retaining rings protruding from the roller sponge body at both ends of the roller sponge.

[0023] In one or some embodiments, when in use, the water retaining ring expands outward, thereby increasing the contact area between the cleaning roller and the shell to a limited extent, and positioning the contact area between the roller sponge and the shell higher than the surface of the roller sponge. During cleaning, the cleaning liquid cannot flow to the higher end of the roller sponge, thereby reducing liquid leakage.

[0024] In one or some embodiments, after being removed from the housing, the outer side of the water retaining ring is flush with the outer diameter of the drum sponge.

[0025] In one or some embodiments, the inner side of the water retaining ring is a bevel.

[0026] In one or some embodiments, a directional deformation groove is provided on the outer side of the water retaining ring, and the directional deformation groove is distributed in the circumferential direction of the water retaining ring.

[0027] In one or some embodiments, the cross section of the directional deformation groove is trapezoidal in shape.

[0028] In one or some embodiments, both the inner and outer sides of the water retaining ring are inclined surfaces inclined outward.

[0029] In one or some embodiments, the water locking mechanism includes multiple water retaining rings with a tooth-shaped cross-section arranged from the inside to the outside at both ends of the roller sponge. The multiple elastically deformable water retaining rings work together to achieve multiple water locking on the two ends of the roller sponge and the side walls of the cleaning head shell.

[0030] In one or some embodiments, the contact surface formed between the water retaining ring and the cleaning head housing is a leak-proof interface.

[0031] In one or some embodiments, the water retaining ring is inclined toward the radial outside of the drum sponge, and a water collecting groove is formed at the intersection of the water retaining ring and the drum sponge, which is located lower than the leak-proof intersection surface.

[0032] In one or some embodiments, when multiple water retaining rings are partially damaged or all water retaining rings are partially damaged, under the action of centripetal force, both ends of the roller sponge can still ensure a certain water locking ability.

[0033] In one or some embodiments, the water locking mechanism reduces the elastic deformation between the end of the roller sponge and the side wall of the cleaning head housing, thereby reducing the expansion force on the side wall of the cleaning head housing generated during the process of the roller sponge drying and hardening.

[0034] The cleaning tool of the present invention comprises a cleaning roller comprising a roller bracket and a roller sponge wrapped around the outer side of the roller bracket. The roller bracket has a cavity at one end and a retractable shaft mechanism at the other end. Water-locking mechanisms are provided at both ends of the roller sponge to prevent liquid from leaking out during cleaning. Because the water-locking mechanisms at both ends of the roller sponge prevent water leakage from the sides of the roller, they reduce friction with the cleaning head housing and improve the watertightness between the roller sponge and the cleaning head housing. This also prevents excessive friction from reducing the service life of the cleaning roller, improves battery efficiency, and prevents a decrease in the overall water absorption and moisture retention properties of the roller sponge.

[0035] In addition, the water-locking mechanism reduces the elastic deformation between the end of the sponge layer and the side wall of the cleaning head shell. As the sponge layer dries and hardens, the expansion force on the side wall of the cleaning head shell is naturally reduced, thereby increasing the life of the cleaning head shell.

[0036] The water-locking mechanism includes an inwardly inclined surface positioned anywhere between the outer and inner diameters of the drum sponge through its thickness, forming an annular arc surface within the drum sponge. The annular arc surface is provided with a water-locking layer having a density greater than that of the drum sponge, and the surface of the water-locking layer is smooth. Due to the smooth surface of the water-locking layer, friction between the water-locking layer and the housing is reduced after installation, while increasing the contact surface between the water-locking layer and the housing, effectively increasing the length of the watertight path and thereby effectively preventing leakage of cleaning liquid.

[0037] The water-locking mechanism utilizes water retaining rings protruding from the drum sponge body at both ends of the drum sponge. Due to the small size of the water retaining rings, they expand outward during use, thereby increasing the contact surface with the housing to a limited extent. With appropriate configuration, this prevents a significant increase in contact friction between the two. Furthermore, when expanding outward, the contact surface between the drum sponge and the housing is positioned higher than the drum sponge surface. This prevents cleaning fluid from flowing toward the higher end of the drum sponge during cleaning, effectively reducing liquid leakage. The inner side of the water retaining ring is inclined, which facilitates the outward expansion of the water retaining ring when mated with the housing.

[0038] The outer side of the water retaining ring is provided with a directional deformation groove, which is distributed in the circumferential direction of the water retaining ring. The directional deformation groove can ensure that the water retaining ring expands in a preset direction when mated with the shell, that is, expands outward for guidance. The cross-section of the directional deformation groove is trapezoidal in shape to better achieve outward expansion guidance.

[0039] As needed, the inner and outer sides of the water retaining ring are both outwardly inclined slopes, the purpose of which is to ensure that it can expand outward for guidance when mated with the shell, thereby ensuring that the purpose of locking water is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without exceeding the scope of protection required by this application.

[0041] Figure 1 A front view of the three-dimensional structure of an embodiment of a water-leakage-proof cleaning roller according to the present invention.

[0042] Figure 2 For the Figure 1 Schematic diagram of the cross-sectional structure in the AA direction.

[0043] Figure 3 Figure 2 Schematic diagram of the enlarged structure of part C in the middle.

[0044] Figure 4A schematic structural diagram of another embodiment of the water-leakage-proof cleaning roller of the present invention.

[0045] Figure 5 Figure 4 Schematic diagram of the enlarged structure of part D.

[0046] Figure 6 It is a schematic diagram of the axial projection structure of the water retaining ring.

[0047] Figure 7 It is a structural schematic diagram of another embodiment of a water retaining ring.

[0048] Figure 8 This is a structural diagram of another embodiment of a water retaining ring.

[0049] Figure 9 It is a structural schematic diagram of the fourth embodiment of the water retaining ring.

[0050] Figure 10 for Figure 9 Schematic diagram of the enlarged structure of part E.

[0051] Figure 11 Schematic diagram of the structure of a cleaning tool embodiment.

[0052] Figure 12 It is a structural diagram of the water locking mechanism and the shell.

[0053] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0054] The following is a further detailed description of the claims of the present invention in conjunction with specific embodiments and accompanying drawings. It is obvious that the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments proposed by ordinary technicians in this field without making creative efforts are also within the scope of protection of the present invention.

[0055] It should be understood that, in the description of the embodiments of the present invention, all directional indication terms, such as "up," "down," "left," "right," "front," "back," etc., indicate positions or positional relationships based on the positions and positional relationships shown in the accompanying drawings or the positions or positional relationships in which the inventive product is typically placed when in use. These terms are intended only to simplify the description of the present invention and do not explicitly or implicitly indicate that the devices, elements, or components referred to must have a specific position or specific directional structure, and should not be construed as limiting the present invention. They are only used to explain the relative positional relationships and movement conditions between the components shown in the accompanying drawings. When the specific posture changes, the directional indication may also change accordingly.

[0056] Furthermore, ordinal numbers such as "first" and "second" in this disclosure are used solely for distinction purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. The terms "first" and "second" may explicitly or implicitly indicate at least one of the technical features. In this disclosure, "plurality" means at least two, i.e., two or more, unless otherwise expressly specified; and "at least one" means one, one, or more.

[0057] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can mean that the positional relationship between components is relatively fixed, or that the components are physically fixedly connected. It can be a detachable connection or an integrated structure. It can be a mechanical connection or an electrical signal connection. It can be a direct connection or an indirect connection through an intermediate medium or component. It can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined in the specification, other understandings may not achieve the corresponding functions or effects. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] The controllers and control circuits involved in the present invention are conventional control technologies or units known to those skilled in the art. For example, the control circuits of the controllers can be implemented by those skilled in the art using existing technologies, such as simple programming. Regarding software or programs that work with hardware to achieve control results, if the description does not provide a detailed description of the software or program control process involved, then the existing technologies or conventional technologies known to those skilled in the art are used. The power supply also uses the existing technologies described above, and the main technical point of the present invention is to improve the mechanical device. Therefore, the present invention will not further describe the specific circuit control relationships and circuit connections.

[0059] The disclosure of the present invention provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described in the present invention. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0060] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0061] The solution of this application will be described in detail below with reference to the accompanying drawings.

[0062] Figures 1-10 As shown, the present invention provides an embodiment of a water-leakage-proof cleaning roller.

[0063] The leak-proof cleaning roller 1 includes a roller bracket 11 and a roller sponge 12 wrapped around the outside of the roller bracket 11. The roller bracket 12 has a cavity at one end (not shown in the drawings) and a telescopic rotating shaft mechanism at the other end. Water locking mechanisms are provided at both ends of the roller sponge 12 to prevent liquid from flowing out during drum cleaning.

[0064] Specifically, the retractable shaft mechanism includes a shaft 15 fixed at one end to a fixed seat 16 for linear movement, an elastic member 14 sleeved around shaft 15 to keep it extended, and a shaft cover 13 covering the end of shaft 15. A bearing is provided between the shaft cover and the shaft. When force is applied to the shaft cover, the shaft moves linearly inward. When released, the elastic member causes the shaft and shaft cover to extend. The shaft cover 13 is polygonal, such as a square, hexagonal, or other structure capable of transmitting torque. The water-locking mechanism includes an inwardly inclined surface 121 positioned anywhere between the outer and inner diameters of the drum sponge 12 through its thickness, forming an annular curved surface within the thickness of the drum sponge 12. This annular curved surface is provided with a water-locking layer 120 having a greater density than the drum sponge. This water-locking layer 120 has a smooth surface. Due to its smooth surface, the water-locking layer 120 reduces friction with the housing after installation, while also increasing the contact surface between the housing and the housing, effectively increasing the length of the watertight path and thus preventing leakage of cleaning liquid.

[0065] The water-locking mechanism can also be provided with a water retaining ring 10 protruding from the roller sponge body at both ends of the roller sponge 12. Since the water retaining ring 10 is relatively small, it expands outward during use, thereby increasing the contact surface with the shell to a limited extent. Through appropriate configuration, the contact friction between the two will not be significantly increased. At the same time, when expanding outward, the contact surface between the roller sponge and the shell is positioned higher than the surface of the roller sponge 12. During cleaning, the cleaning liquid cannot flow to the higher end of the roller sponge, thereby effectively reducing liquid leakage. The inner side of the water retaining ring is an inclined surface, which makes it easier to guide the water retaining ring to expand outward when it cooperates with the shell A.

[0066] The outer side of the water retaining ring 10 is provided with a directional deformation groove 102, which is distributed in the circumferential direction of the water retaining ring. The directional deformation groove can ensure that the water retaining ring expands in a preset direction when it is matched with the shell, that is, it expands outward for guidance. The cross-section of the directional deformation groove is trapezoidal in shape to better achieve outward expansion guidance.

[0067] As needed, the inner and outer sides of the water retaining ring 10 are both outwardly inclined slopes 101, the purpose of which is to ensure that it can expand outward for guidance when mated with the shell, ensuring that the purpose of locking water is achieved.

[0068] like Figure 9-10 As shown, the water-locking mechanism can also be implemented using the following structure: the water-locking mechanism includes multiple water retaining rings 10, each positioned at each end of the drum sponge 12 from the inside out, and positioned between the inner and outer radial diameters of the drum sponge 12, but not necessarily excluding the inner and outer diameters. The cross-sections of the multiple water retaining rings 10 are tooth-like in structure. The multiple water retaining rings 10 are optimally tilted radially outward from the drum sponge 12. The presence of multiple water retaining rings 10 and their outward tilt ensure that, after installation, the water retaining rings 10 form a limited, larger contact surface with the housing. Furthermore, the bottom of the water retaining ring 10 and the intersection with the drum sponge 12 form a water collection groove 103 positioned below the leak-proof interface, thereby achieving a better leak-proof effect. The leak-proof interface refers to the contact surface formed between the water retaining ring 10 and the housing. Simultaneously, the multiple elastically deformable water retaining rings work together to achieve multiple water locks between the ends of the drum sponge and the sidewalls of the cleaning head housing. Even if individual water retaining rings are damaged, as long as one water retaining ring is intact, the water lock function at both ends of the drum sponge can still be achieved. Even if there are multiple water retaining rings that are partially damaged or all the water retaining rings are partially damaged, as long as the damaged part is not a straight-through damage radiating outward from the axis (the damaged part is irregular and will be blocked by the second or third partially damaged water retaining ring), under the action of centripetal force, both ends of the roller sponge can still ensure a certain water locking ability, thereby improving the durability of the sponge roller.

[0069] Because water-locking mechanisms are located at both ends of the roller sponge to prevent water leakage from the sides of the roller, they reduce friction with the cleaning head housing and improve the watertightness between the roller sponge and the cleaning head housing. This also prevents excessive friction from shortening the life of the cleaning roller, improves battery efficiency, and prevents a decrease in the overall water absorption and moisture retention properties of the roller sponge.

[0070] In addition, the water-locking mechanism reduces the elastic deformation between the end of the sponge layer and the side wall of the cleaning head shell. As the sponge layer dries and hardens, the expansion force on the side wall of the cleaning head shell is naturally reduced, thereby increasing the life of the cleaning head shell.

[0071] Figures 1-12As shown, the present invention also provides an embodiment of a cleaning tool.

[0072] The cleaning tool includes a cleaning head, which includes a shell and a roller arranged on the shell, and a drive motor that drives the roller to work. The roller includes a roller bracket and a roller sponge covered on the outside of the roller bracket. A cavity is provided at one end of the roller bracket and a telescopic rotating shaft mechanism is provided at the other end. Water locking mechanisms are provided at both ends of the roller sponge to prevent liquid from flowing out when the roller is cleaned.

[0073] Specifically, the roller bracket 11 is provided with a cavity and a drive motor 2 is provided at one end. One end of the drive motor 2 is connected to the universal joint B between the shell, and the other end is connected to the rotating shaft 15 through the shaft connector 21, and the rotating shaft 15 drives the roller bracket 11 and the roller sponge 12 to rotate.

[0074] The retractable shaft mechanism includes a shaft 15 fixed at one end to a fixed seat 16 for linear movement only, an elastic member 14 sleeved around shaft 15 to keep it extended, and a shaft cover 13 covering the end of shaft 15. A bearing is provided between the shaft cover and the shaft. When force is applied to the shaft cover, the shaft moves linearly inward. When released, the elastic member causes the shaft and shaft cover to extend. The shaft cover 13 is polygonal, such as a square, hexagonal, or other structure capable of transmitting torque. The water-locking mechanism includes an inwardly inclined surface 121 positioned at any position between the outer and inner diameters of the roller sponge 12 through its thickness, forming an annular curved surface along the thickness of the roller sponge 12. This annular curved surface is provided with a water-locking layer 120 having a greater density than the roller sponge. This water-locking layer 120 has a smooth surface. Due to its smooth surface, the water-locking layer 120 reduces friction with the housing after installation, while also increasing the contact surface between the housing and the housing, effectively increasing the length of the watertight path and thus effectively preventing leakage of cleaning liquid.

[0075] The water-locking mechanism can also be provided with a water retaining ring 10 protruding from the roller sponge body at both ends of the roller sponge 12. Since the water retaining ring 10 is relatively small, it expands outward during use, thereby increasing the contact surface with the shell to a limited extent. Through appropriate configuration, the contact friction between the two will not be significantly increased. At the same time, when expanding outward, the contact surface between the roller sponge and the shell is positioned higher than the surface of the roller sponge 12. During cleaning, the cleaning liquid cannot flow to the higher end of the roller sponge, thereby effectively reducing liquid leakage. The inner side of the water retaining ring is an inclined surface, which makes it easier to guide the water retaining ring to expand outward when it cooperates with the shell A.

[0076] The outer side of the water retaining ring 10 is provided with a directional deformation groove 102, which is distributed in the circumferential direction of the water retaining ring. The directional deformation groove can ensure that the water retaining ring expands in a preset direction when it is matched with the shell, that is, it expands outward for guidance. The cross-section of the directional deformation groove is trapezoidal in shape to better achieve outward expansion guidance.

[0077] As needed, the inner and outer sides of the water retaining ring 10 are both outwardly inclined slopes 101, the purpose of which is to ensure that it can expand outward for guidance when mated with the shell, ensuring that the purpose of locking water is achieved.

[0078] like Figure 9-10 As shown, the water-locking mechanism can also be implemented using the following structure: the water-locking mechanism includes multiple water retaining rings 10, each positioned at each end of the drum sponge 12 from the inside out, and positioned between the inner and outer radial diameters of the drum sponge 12, but not necessarily excluding the inner and outer diameters. The cross-sections of the multiple water retaining rings 10 are tooth-like in structure. The multiple water retaining rings 10 are optimally tilted radially outward from the drum sponge 12. The presence of multiple water retaining rings 10 and their outward tilt ensure that, after installation, the water retaining rings 10 form a limited, larger contact surface with the housing. Furthermore, the bottom of the water retaining ring 10 and the intersection with the drum sponge 12 form a water collection groove 103 positioned below the leak-proof interface, thereby achieving a better leak-proof effect. The leak-proof interface refers to the contact surface formed between the water retaining ring 10 and the housing. Simultaneously, the multiple elastically deformable water retaining rings work together to achieve multiple water locks between the ends of the drum sponge and the sidewalls of the cleaning head housing. Even if individual water retaining rings are damaged, as long as one water retaining ring is intact, the water lock function at both ends of the drum sponge can still be achieved. Even if there are multiple water retaining rings that are partially damaged or all the water retaining rings are partially damaged, as long as the damaged part is not a straight-through damage radiating outward from the axis (the damaged part is irregular and will be blocked by the second or third partially damaged water retaining ring), under the action of centripetal force, both ends of the roller sponge can still ensure a certain water locking ability, thereby improving the durability of the sponge roller.

[0079] Because water-locking mechanisms are located at both ends of the roller sponge to prevent water leakage from the sides of the roller, they reduce friction with the cleaning head housing and improve the watertightness between the roller sponge and the cleaning head housing. This also prevents excessive friction from shortening the life of the cleaning roller, improves battery efficiency, and prevents a decrease in the overall water absorption and moisture retention properties of the roller sponge.

[0080] In addition, the water-locking mechanism reduces the elastic deformation between the end of the sponge layer and the side wall of the cleaning head shell. As the sponge layer dries and hardens, the expansion force on the side wall of the cleaning head shell is naturally reduced, thereby increasing the life of the cleaning head shell.

[0081] The embodiments of the present application are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only intended to help understand the method and core ideas of the present application. At the same time, changes or modifications made by those skilled in the art based on the ideas of the present application, the specific implementation methods, and the scope of application of the present application, all fall within the scope of protection of the present application. In summary, the contents of this specification should not be construed as limiting the present application.

Claims

1. A cleaning tool, comprising a cleaning head, characterized in that: Cleaning head includes: case; A cleaning roller is provided in the housing; A driving motor, one end of which is connected to the housing by a universal joint, drives the cleaning roller to work; Among them, the cleaning roller includes: Roller bracket; The drum sponge is wrapped around the outside of the drum bracket, and a water-locking mechanism is provided at both ends of the drum sponge to prevent the liquid from flowing out when the drum is cleaned. The water-locking mechanism includes an inward-inclined inclined surface at any position between the outer diameter and the inner diameter in the thickness direction of the drum sponge. The water-locking mechanism forms an annular arc surface in the thickness of the drum sponge, increases the length of the watertight path, and prevents the liquid from flowing out from between the drum sponge and the shell when the drum is cleaned.

2. The cleaning tool according to claim 1, wherein The annular arc surface is equipped with a water-locking layer with a density greater than that of the roller sponge, and the surface of the water-locking layer is smooth; Preferably, a cavity is provided at one end of the roller bracket, and a telescopic shaft mechanism is provided at the other end of the roller bracket; Preferably, the telescopic shaft mechanism includes: Fixed seat; The rotating shaft has one end fixed to the fixed seat and can only move in a straight line; an elastic component, sleeved on the rotating shaft to keep the rotating shaft in an extended state; A shaft cover, covering the end of the shaft; A bearing is provided between the shaft cover and the shaft. When force is applied to the shaft cover, the shaft moves linearly inward. When force is released, the elastic component causes the shaft and the shaft cover to extend outward. Preferably, the other end of the driving motor is connected to the rotating shaft in the cavity through a shaft connector, and drives the roller bracket and the roller sponge to rotate through the rotating shaft.

3. The cleaning tool according to claim 1, wherein The roller sponge comprises a roller sponge body, and the water locking mechanism further comprises water retaining rings protruding from the roller sponge body and provided at both ends of the roller sponge.

4. The cleaning tool according to claim 3, wherein When in use, the water retaining ring expands outward, thereby increasing the contact area between the cleaning roller and the shell to a limited extent, and positioning the contact area between the roller sponge and the shell higher than the surface of the roller sponge. During cleaning, the cleaning liquid cannot flow to the higher end of the roller sponge, reducing liquid leakage.

5. The cleaning tool according to claim 3, wherein After being removed from the housing, the outside of the water retaining ring is flush with the outer diameter of the drum sponge.

6. The cleaning tool according to claim 3, wherein The inner side of the water retaining ring is a bevel; Preferably, the outer side of the water retaining ring is provided with a directional deformation groove, and the directional deformation groove is distributed in the circumferential direction of the water retaining ring; Preferably, the cross section of the directional deformation groove is trapezoidal in shape.

7. The cleaning tool according to claim 3, wherein The inner and outer sides of the water retaining ring are both inclined surfaces inclined outwards.

8. The cleaning tool according to claim 3, wherein The water locking mechanism includes multiple water retaining rings with tooth-shaped cross-sections arranged from the inside to the outside at both ends of the roller sponge. The multiple elastically deformable water retaining rings work together to achieve multiple water locking on the two ends of the roller sponge and the side walls of the cleaning head shell.

9. The water-leakage-proof cleaning tool according to claim 3, characterized in that: The contact surface formed between the water retaining ring and the cleaning head shell is a leak-proof interface; Preferably, the water retaining ring is inclined toward the radial outside of the drum sponge, and a water collecting groove is formed at the intersection of the water retaining ring and the drum sponge, the water collecting groove being lower than the leak-proof intersection surface; Preferably, when multiple water retaining rings are partially damaged or all water retaining rings are partially damaged, under the action of centripetal force, both ends of the roller sponge can still ensure a certain water locking ability.

10. The water-leakage-proof cleaning tool according to claim 1, characterized in that: The water locking mechanism reduces the elastic deformation between the end of the roller sponge and the side wall of the cleaning head housing, and reduces the expansion force on the side wall of the cleaning head housing generated during the process of the roller sponge drying and hardening.

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