A cleaning device with a rolling brush automatic cleaning function

Abstract

A cleaning device with a rolling brush automatic cleaning function comprises a main machine and a base station. The main machine is composed of a machine body and a floor brush. A rolling brush groove is arranged on the bottom side of the machine body, and a stepped hole communicating with the rolling brush groove is arranged on the side face. The floor brush is inserted and assembled in the rolling brush groove through the stepped hole and is magnetically attracted and fixed through opposite magnetic poles in the side cover. The base station comprises a machine base, a folding grabbing mechanism, a main machine groove and a cleaning barrel. The machine base is provided with a storage bin. The folding grabbing mechanism is composed of a horizontal movement driving assembly, a rotary driving unit, a folding driving unit, a folding arm and an electric suction cup, and can complete the automatic grabbing and transferring of the floor brush. The cleaning barrel adopts an inner and outer barrel structure, cooperates with a water pump and a driving motor to realize automatic water feeding, cleaning, drainage and high-speed centrifugal dewatering. Through the cooperation of the main machine and the base station, the automatic cleaning of the floor brush is realized, and the problems of complicated manual disassembly and cleaning, laborious disassembly and assembly, easy breeding of bacteria and the like are solved. The device has the advantages of compact structure, stable operation, clean and sanitary, convenient use and the like.

Description

Technical Field

[0001] This invention relates to cleaning equipment technology, and in particular to an intelligent cleaning device equipped with a base station that can automatically disassemble, clean, and dehydrate the roller brush, especially suitable for scenarios such as household floor scrubbers. Background Technology

[0002] With the widespread adoption of smart homes and cleaning appliances, roller brush cleaning devices, such as floor scrubbers, have become commonplace in both residential and public cleaning scenarios. These devices rely on high-speed rotating roller brushes to remove stains and recycle liquids, achieving cleaning efficiency far exceeding that of traditional vacuum cleaners and mops. However, in practical use, existing roller brush cleaning devices still suffer from several unresolved technical shortcomings:

[0003] Roller brush maintenance is highly dependent on manual labor, resulting in a poor user experience. The roller brush and floor brush components of existing equipment are mostly manually plugged in and unplugged for hand washing, manual shaking or air drying. The whole process is cumbersome, dirty, and time-consuming. In particular, manual cleaning is difficult for oil stains, hair, and sticky stains, and dirt is easily left behind.

[0004] The roller brush assembly and disassembly structure is unreasonable, making it easy to loosen or difficult to disassemble; most equipment relies on clips or simple plugs to fix the roller brush, and after long-term use, the clips are prone to wear and loosening, resulting in abnormal noise and falling off during operation; while some use interference fit to ensure stability, which makes disassembly difficult for users, especially women and the elderly.

[0005] Lacking automatic cleaning and dehydration functions, it is easy for bacteria and odors to grow; after the roller brush is cleaned, it only relies on natural air drying, and the moisture remains for a long time. In a humid and enclosed environment, it is very easy to mold, produce odors, and breed bacteria and mites. Reuse will cause secondary pollution, which does not meet the needs of healthy cleaning.

[0006] The base station pick-and-place mechanism is large in size, has sluggish operation, and low reliability. Existing equipment with self-cleaning function mostly uses fixed cantilever or single linear mechanism for pick-and-place, which occupies a lot of internal space in the base station. It is not smooth in extension and reset, and is prone to jamming and misalignment. It cannot stably complete the picking, moving, and reloading actions, resulting in a high failure rate.

[0007] The washing and dehydration processes are separated, resulting in an incoherent process. Some equipment can only spray the surface of the roller brush without centrifugal dehydration, leading to incomplete washing and insufficient dehydration, which fails to meet the requirements for efficient and hygienic automatic cleaning.

[0008] Based on the aforementioned pain points, existing cleaning equipment cannot achieve full automation of the entire process from disassembly, washing, and dehydration, resulting in high user maintenance costs, poor cleaning and hygiene, and insufficient operational stability. Therefore, developing a compact, stable, integrated washing and dehydration, fully automated roller brush cleaning device has become an urgent technical problem to be solved in this field. Summary of the Invention

[0009] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a cleaning device with an automatic roller brush cleaning function. Through the cooperation of the host and the base station, the floor brush can automatically grab, transfer, clean, and centrifuge to dehydrate without human intervention. This solves the problems of cumbersome manual operation, laborious disassembly and assembly, incomplete cleaning, easy bacterial growth, and poor operation of the base station mechanism.

[0010] To achieve the above and other related objectives, the technical solution provided by this invention is: a cleaning device with an automatic roller brush cleaning function, comprising:

[0011] The main unit includes a body and a floor brush;

[0012] The base station includes a base, a folding gripping mechanism is provided inside the base, a main unit slot and a cleaning bucket are provided on the top side of the base, the main unit slot is used to position the main unit, the folding gripping mechanism is used to remove the floor brush from the base and send it to the cleaning bucket, and the cleaning bucket is used to clean the floor brush.

[0013] A preferred technical solution is as follows: the bottom side of the machine body is provided with a roller brush groove, the side side of the machine body is provided with a stepped hole communicating with the roller brush groove, the floor brush includes a side cover and a roller, the roller is rotated inside the side cover, the roller is inserted into the roller brush groove through the stepped hole, the side cover is embedded in the stepped hole, a first magnet is provided on the stepped surface of the stepped hole, a second magnet is embedded inside the side cover, the first magnet and the second magnet correspond to each other and are arranged with opposite magnetic poles.

[0014] A preferred technical solution is as follows: a storage compartment is formed inside the base, and an opening communicating with the storage compartment is provided on the side wall of the base. The folding gripping mechanism is located in the storage compartment and can extend or retract through the opening. The folding gripping mechanism consists of a transverse drive assembly, a rotary drive unit, a folding drive unit, a folding arm, and a gripping unit. The transverse drive assembly is used to control the rotary drive unit to extend or retract into the storage compartment along the axis of the roller. The rotary drive unit is connected to one end of the folding arm and is used to control the rotation of the folding arm. The folding drive unit is located in the middle section of the folding arm and is used to control the folding of the folding arm. The gripping unit is located at the other end of the folding arm and is used to grip or release the floor brush.

[0015] A preferred technical solution is as follows: the transverse drive assembly includes a first fixed seat, a second fixed seat, a movable seat, a housing, a lead screw, a lead screw nut, a guide rod, a guide sleeve, a first driving gear, a first driven gear, a first motor, and a second mounting base. The first fixed seat and the second fixed seat are sequentially fixed in the storage compartment along the direction towards the opening. The lead screw is rotatably disposed between the first fixed seat and the second fixed seat along the direction towards the opening. The guide rod is fixed between the first fixed seat and the second fixed seat and is arranged parallel to the lead screw at intervals. The first motor is fixed on the second fixed seat and is used to drive the first driving gear to rotate. The first driven gear is fixed on the lead screw and meshes with the first driving gear. The lead screw nut and the guide sleeve are fixed in the movable seat. The lead screw nut is screwed onto the lead screw, and the guide sleeve is sleeved on the guide rod. One end of the housing is fixedly connected to the movable seat, and the other end of the housing is equipped with the rotary drive unit.

[0016] The preferred technical solution is that the rotation drive unit adopts a second motor, and the output shaft of the second motor is fixedly connected to one end of the folding arm to drive the folding arm to rotate.

[0017] The preferred technical solution is as follows: the folding arm includes a first connecting arm and a second connecting arm, one end of the first connecting arm is fixedly connected to the output shaft of the second motor, the other end of the first connecting arm is hinged to one end of the second connecting arm, and the other end of the second connecting arm is fixedly connected to the gripping unit.

[0018] The preferred technical solution is as follows: the folding drive unit includes a second driving gear, a second driven gear and a third motor. The third motor is fixed on the first connecting arm and is used to drive the second driving gear to rotate. The second driven gear is fixed on the second connecting arm through a shaft and meshes with the second driving gear. The shaft is arranged parallel to the hinge shaft between the first connecting arm and the second connecting arm.

[0019] The preferred technical solution is that the gripping unit adopts an electric suction cup.

[0020] A preferred technical solution is that ball bearings are provided on the bottom and top sides of both the first connecting arm and the second connecting arm.

[0021] A preferred technical solution is as follows: the cleaning tub includes an outer tub, an inner tub, a fourth motor, a first water pump, and a second water pump. The outer tub is fixedly mounted on the base, and the inner tub is coaxially rotatably mounted within the outer tub. The inner tub has drainage holes on its wall. The fourth motor is fixedly mounted at the bottom of the outer tub and is used to drive the inner tub to rotate. Both the first water pump and the second water pump are fixedly mounted within the base. The inlet of the first water pump is connected to an external water source via a pipe, and the outlet of the first water pump is connected to the inlet on the outer tub via a pipe. The inlet of the second water pump is connected to the drain outlet on the outer tub via a pipe, and the outlet of the second water pump is connected to an external sewage pipe via a pipe.

[0022] Due to the application of the above technical solution, the beneficial effects of this invention are as follows:

[0023] The entire process is automated, completely freeing up your hands; from disassembling, cleaning and dehydrating the floor brush, the whole process is completed automatically, without the need for manual disassembly and washing or spin-drying, greatly improving the convenience of use and solving the pain points of manual cleaning being dirty, tiring and troublesome.

[0024] Reliable magnetic positioning and smoother assembly and disassembly; adopting a magnetic attraction structure with opposite magnetic poles, the installation is stable and will not loosen, and the disassembly resistance is moderate, avoiding problems such as wear, jamming or falling off of the buckles, thus improving service life and assembly consistency.

[0025] The folding mechanism is compact and operates stably; the folding arm structure enables handling at complex angles, and with the ball bearing friction reduction design, rotation, folding, and lateral movement are smooth, not easy to jam or misalign, and have high grasping accuracy and low failure rate.

[0026] The integrated cleaning and dehydration process significantly improves hygiene; the cleaning process combined with high-speed centrifugal dehydration ensures more thorough dehydration of the floor brush, greatly shortens drying time, inhibits the growth of mold, bacteria, and odors, and avoids secondary pollution.

[0027] Automatic separation of cleaning and wastewater makes maintenance simpler; water intake, cleaning, and drainage are completed automatically, and wastewater is discharged directly without the need to manually empty the wastewater tank, reducing user maintenance costs.

[0028] With wide applicability and widespread adoption, and a reasonable structural design, it can be widely used in household floor scrubbers, commercial floor scrubbers, industrial cleaning equipment and other scenarios, and has high practical value and market prospects. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the cleaning equipment involved in the present invention.

[0030] Figure 2 This is a schematic diagram of the structure of the floor brush and the body in the disassembled state according to the present invention.

[0031] Figure 3This is a schematic diagram of the internal cross-section of the base involved in the present invention.

[0032] Figure 4 This is a schematic diagram of the folding gripping mechanism of the present invention in its first state of extending from the base.

[0033] Figure 5 This is a schematic diagram of the second state in which the folding gripping mechanism of the present invention extends from the base.

[0034] Figure 6 This is a schematic diagram of the folding gripping mechanism of the present invention in a third state, extending from the base.

[0035] Figure 7 This is a schematic cross-sectional view of the base involved in the present invention. Detailed Implementation

[0036] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0037] Please see Figures 1-7 It should be noted that in the description of this invention, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. These terms are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] Example:

[0040] like Figures 1 to 7 As shown, according to an overall technical concept of the present invention, a cleaning device with automatic roller brush cleaning function is provided. The cleaning device mainly consists of two parts: a main unit and a base station. The two work together to realize the automatic disassembly, transfer, cleaning and centrifugal dehydration of the floor brush.

[0041] Main unit: includes body 1 and detachable floor brush 2; the bottom of body 1 has a roller brush groove and the side has a stepped hole 11 that communicates with the roller brush groove; the floor brush 2 consists of a side cover 21 and a roller 22. The roller 22 is rotatably installed inside the side cover 21. The roller 22 passes through the stepped hole 11 and is inserted into the roller brush groove. The side cover 21 and the stepped hole 11 are fitted and positioned.

[0042] Base station: includes base 3, folding gripping mechanism 4, and cleaning tank 5; the base 3 has a storage compartment inside, and an opening in the side wall that connects to the storage compartment; the folding gripping mechanism 4 is stored in the storage compartment and can extend and retract horizontally; the main unit slot is located on the top side of the base 3 for main unit positioning to ensure accurate alignment between the floor brush 2 and the folding gripping mechanism 4; the cleaning tank 5 has a double-layer structure with inner and outer tanks, integrating water inlet, cleaning, drainage, and centrifugal dehydration functions.

[0043] A first magnet is fixedly installed on the stepped surface of the stepped hole in the body 1. A second magnet is embedded in the corresponding position inside the side cover 21 of the floor brush 2. The two magnets have opposite magnetic poles, forming a stable magnetic attraction. Installation state: The roller 22 is inserted into the roller brush groove, and the side cover 21 is embedded in the stepped hole. The first and second magnets attract each other, reliably fixing the floor brush 2 to the body 1. It will not loosen, fall off, or make abnormal noise during operation. Disassembly state: The folding gripping mechanism 4 applies an outward pulling force. If the pulling force is greater than the magnetic attraction force, the floor brush can be smoothly pulled out without the need for locking clips or manual force, making disassembly and assembly smooth.

[0044] The folding gripping mechanism 4 is installed in the storage compartment of the base 3. It consists of five parts: a transverse drive assembly 41, a rotation drive unit 42, a folding drive unit 43, a folding arm 44, and a gripping unit 45. Each component works together to complete the gripping, transfer, and reloading actions.

[0045] The transverse drive assembly 41 includes a first fixed seat 411, a second fixed seat 412, a movable seat 413, a housing 414, a lead screw 415, a lead screw nut 416, a guide rod 417, a guide sleeve 418, a first driving gear 419, a first driven gear 4110, and a first motor 4111. The first fixed seat 411 and the second fixed seat 412 are fixed in the storage compartment along the extension direction. The lead screw 415 and the guide rod 417 are installed parallel between the two fixed seats. The first motor 4111 is installed on the second fixed seat 412 and drives the first driving gear 419 to rotate, which meshes with the first driven gear 4110 to drive the lead screw 415 to rotate. The lead screw nut 416 and guide sleeve 418 are fixed inside the movable seat 413. The rotation of the lead screw 415 drives the movable seat 413 to move horizontally along the guide rod 417, thereby driving the housing 414, the rotary drive unit 42 and the entire folding arm 44 to extend out of the opening or retract into the storage bin along the axis of the roller 22, realizing horizontal feeding and retraction.

[0046] The rotary drive unit 42 uses a second motor, and its output shaft is fixedly connected to the first connecting arm 441 of the folding arm 44. It can drive the folding arm 44 to rotate circumferentially, adjust the orientation and angle of the gripping unit 45, and adapt to different posture requirements for taking out and transferring the floor brush 2.

[0047] The folding arm 44 is divided into a first connecting arm 441 and a second connecting arm 442, which are hinged together. The folding drive unit 43 includes a third motor 431, a second driving gear 432, and a second driven gear 433. The third motor 431 is fixed to the first connecting arm 441, and the second driven gear 433 is fixed to the second connecting arm 442 by a shaft. The third motor 431 drives the second driving gear 432 to rotate, which in turn drives the second driven gear 433 to rotate, thereby driving the second connecting arm 442 to fold inward around the hinge axis, realizing the unfolding and retraction of the folding arm 44, which facilitates the delivery of the end of the roller 22 to the cleaning tub 5 at an inclined angle.

[0048] Ball bearings 6 are installed on the top and bottom surfaces of the first connecting arm 441 and the second connecting arm 442, which can reduce friction and prevent jamming during movement in the storage compartment.

[0049] The gripping unit 45 uses an electric suction cup, which is installed at the end of the second connecting arm 442. When powered on, it generates negative pressure to adsorb the surface of the side cover 21 of the floor brush. When powered off, the negative pressure disappears and the floor brush 2 is released. The gripping is stable, does not damage the appearance, and is accurately positioned.

[0050] The cleaning tank 5 consists of an outer tank 51, an inner tank 52, a fourth motor 53, a first water pump 54, and a second water pump 55, integrating automatic water intake, cleaning, drainage, and centrifugal dehydration. The outer tank 51 is fixed to the top of the base 3, and the inner tank 52 is coaxially and rotatably installed inside the outer tank 51. Drainage holes are evenly distributed on the wall of the inner tank 52. The fourth motor 53 is fixed to the bottom of the outer tank 51, and its output shaft is connected to the inner tank 52, driving the inner tank 52 to rotate at high speed and generate centrifugal force. The first water pump 54 has its inlet connected to an external water source and its outlet connected to the inlet of the outer tank 51, automatically injecting clean water into the tank. The second water pump 55 has its inlet connected to the drain outlet of the outer tank 51 and its outlet connected to an external sewage pipe, automatically discharging sewage.

[0051] After the self-cleaning program is activated, this invention will run automatically according to the following steps:

[0052] Step 1: Main unit positioning. The user places the main unit back into the main unit slot of the base station. The main unit and the base station are aligned, and power and signal communication are completed. Confirm that the position of the ground brush and the orientation of the step hole are accurate, in preparation for brush retrieval.

[0053] Step 2: The folding gripping mechanism extends, the first motor starts, and drives the lead screw to rotate through gear transmission. The movable seat moves horizontally along the guide rod, pushing the folding gripping mechanism outward from the storage compartment through the opening. The second motor starts, driving the folding arm to rotate, so that the electric suction cup faces the side cover of the floor brush.

[0054] Step 3: Grab the floor brush. The electric suction cup is powered on to generate negative pressure, firmly adhering to the side cover of the floor brush. The lateral drive component pulls slightly backward, and the pulling force overcomes the magnetic attraction, smoothly pulling the floor brush out of the stepped hole in the body. The roller disengages from the brush groove, completing the floor brush disassembly.

[0055] Step 4: The floor brush is moved to the cleaning tub. The second motor drives the folding arm to rotate, turning the floor brush upwards towards the cleaning tub. The folding drive unit adjusts the angle of the folding arm, allowing the floor brush to slowly fall into the inner tub of the cleaning tub. The electric suction cup is de-energized, releasing the floor brush, and the folding gripping mechanism slightly retracts to avoid it.

[0056] Step 5: Automatic water intake and cleaning. The first water pump starts, injecting clean water into the outer and inner tubs. Water intake stops once the water level reaches the set value. The clean water submerges the brush roller, and the fourth motor drives the inner tub to rotate. The resulting vortex soaks and washes away stains, hair, and sticky dirt on the roller surface, completing the cleaning process.

[0057] Step 6: Automatic drainage. After cleaning is completed, the second water pump starts to pump out all the sewage in the outer bucket through the drain outlet and discharge it into the external sewage pipeline. There is no water residue left in the bucket.

[0058] Step 7: Centrifugal dehydration. The fourth motor starts, driving the inner tub to rotate at high speed. The floor brush quickly spins dry under centrifugal force, and the water is thrown out through the drain hole of the inner tub to the outer tub, and then discharged by the second water pump. After dehydration is complete, the fourth motor stops, the inner tub remains stationary, and the floor brush remains dry to prevent mold and bacterial growth.

[0059] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A cleaning device with an automatic roller brush cleaning function, characterized in that, include: The main unit includes a body and a floor brush; The base station includes a base, a folding gripping mechanism is provided inside the base, a main unit slot and a cleaning bucket are provided on the top side of the base, the main unit slot is used to position the main unit, the folding gripping mechanism is used to remove the floor brush from the base and send it to the cleaning bucket, and the cleaning bucket is used to clean the floor brush.

2. The cleaning device with automatic roller brush cleaning function according to claim 1, characterized in that: The bottom side of the machine body is provided with a roller brush groove, and the side of the machine body is provided with a stepped hole that connects to the roller brush groove. The floor brush includes a side cover and a roller. The roller is rotated inside the side cover and inserted into the roller brush groove through the stepped hole. The side cover is embedded in the stepped hole. A first magnet is provided on the stepped surface of the stepped hole, and a second magnet is embedded inside the side cover. The first magnet and the second magnet correspond to each other and are arranged with opposite magnetic poles.

3. A cleaning device with automatic roller brush cleaning function according to claim 1, characterized in that: A storage compartment is formed inside the base, and an opening communicating with the storage compartment is provided on the side wall of the base. The folding gripping mechanism is located in the storage compartment and can extend or retract through the opening. The folding gripping mechanism consists of a lateral drive assembly, a rotary drive unit, a folding drive unit, a folding arm, and a gripping unit. The lateral drive assembly is used to control the rotary drive unit to extend or retract into the storage compartment along the axis of the roller. The rotary drive unit is connected to one end of the folding arm and is used to control the rotation of the folding arm. The folding drive unit is located in the middle section of the folding arm and is used to control the folding of the folding arm. The gripping unit is located at the other end of the folding arm and is used to grip or release the floor brush.

4. A cleaning device with automatic roller brush cleaning function according to claim 3, characterized in that: The lateral drive assembly includes a first fixed seat, a second fixed seat, a movable seat, a housing, a lead screw, a lead screw nut, a guide rod, a guide sleeve, a first driving gear, a first driven gear, a first motor, and a second mounting base. The first fixed seat and the second fixed seat are sequentially fixed in the storage compartment along the direction towards the opening. The lead screw is rotatably disposed between the first fixed seat and the second fixed seat along the direction towards the opening. The guide rod is fixed between the first fixed seat and the second fixed seat and is arranged parallel to the lead screw at a distance. The first motor is fixed on the second fixed seat and is used to drive the first driving gear to rotate. The first driven gear is fixed on the lead screw and meshes with the first driving gear. The lead screw nut and the guide sleeve are fixed in the movable seat. The lead screw nut is screwed onto the lead screw, and the guide sleeve is sleeved on the guide rod. One end of the housing is fixedly connected to the movable seat, and the other end of the housing is equipped with the rotary drive unit.

5. A cleaning device with automatic roller brush cleaning function according to claim 4, characterized in that: The rotation drive unit uses a second motor, and the output shaft of the second motor is fixedly connected to one end of the folding arm to drive the folding arm to rotate.

6. A cleaning device with automatic roller brush cleaning function according to claim 5, characterized in that: The folding arm includes a first connecting arm and a second connecting arm. One end of the first connecting arm is fixedly connected to the output shaft of the second motor, and the other end of the first connecting arm is hinged to one end of the second connecting arm. The other end of the second connecting arm is fixedly connected to the gripping unit.

7. A cleaning device with automatic roller brush cleaning function according to claim 6, characterized in that: The folding drive unit includes a second driving gear, a second driven gear, and a third motor. The third motor is fixed on the first connecting arm and is used to drive the second driving gear to rotate. The second driven gear is fixed on the second connecting arm via a shaft and meshes with the second driving gear. The shaft is parallel to the hinge shaft between the first connecting arm and the second connecting arm.

8. A cleaning device with automatic roller brush cleaning function according to claim 3, characterized in that: The gripping unit uses an electric suction cup.

9. A cleaning device with automatic roller brush cleaning function according to claim 6, characterized in that: Both the bottom and top sides of the first connecting arm and the second connecting arm are provided with ball bearings.

10. A cleaning device with automatic roller brush cleaning function according to claim 1, characterized in that: The cleaning tub includes an outer tub, an inner tub, a fourth motor, a first water pump, and a second water pump. The outer tub is fixed to the base, and the inner tub is coaxially rotatable within the outer tub. The inner tub has drainage holes on its wall. The fourth motor is fixed to the bottom of the outer tub and drives the inner tub to rotate. Both the first and second water pumps are fixed within the base. The inlet of the first water pump is connected to an external water source via a pipe, and the outlet of the first water pump is connected to the inlet on the outer tub via a pipe. The inlet of the second water pump is connected to the drain outlet on the outer tub via a pipe, and the outlet of the second water pump is connected to an external sewage pipe via a pipe.

Images