Washing and sweeping cleaning robot

Abstract

The cleaning robot comprises a main body frame, a horizontal base plate, a walking driving assembly, a side sweeping assembly, a rolling sweeping assembly, a clean water spraying pipe, a rolling washing assembly, a water sucking rake, a clean water tank and a sewage tank. The rolling sweeping assembly comprises a rolling sweeping frame, a rolling sweeping driving motor, a rolling sweeping brush and a front side electric lifter. The rolling washing assembly comprises a rolling washing frame, a rolling washing driving motor, a rolling washing brush, a rear side electric lifter and a dust box. Two base plate fixing pieces are arranged on the lower surface of the horizontal base plate, butt joint clamping blocks of the base plate fixing pieces are clamped and fixed through U-shaped clamping grooves of the base plate fixing pieces, and the other ends of the base plate fixing pieces are screwed and fastened through locking screws; a front rolling sweeping brush and a rear rolling sweeping brush are rotationally installed in a rolling brush containing cavity of the rolling sweeping frame, a front scraping piece is arranged on the inner wall of the rolling brush containing cavity, and a rear scraping piece making contact with the rear rolling sweeping brush is arranged at the position, at the dust inlet, of the dust box. Through the structural design, the cleaning device has the advantages of being novel in design, convenient to install, maintain and replace and high in cleaning efficiency.

Description

Technical Field

[0001] This invention relates to the field of robotics, and more particularly to a cleaning robot. Background Technology

[0002] Chinese utility model patent with patent number ZL202423258750.7 and patent title: A Water-Washing Cleaning Structure for a Sweeping Robot, essentially discloses a sweeping robot; specifically, the water-washing cleaning structure of this sweeping robot discloses the following technical solution: A water-washing cleaning structure for a sweeping robot, the sweeping robot includes a frame, the frame is equipped with a walking drive component, a roller sweeping component, a dustbin, and an exhaust component; during operation, the exhaust component sucks the dust swept by the roller sweeping component into the dustbin; a water-washing component is installed on the rear side of the frame of the roller sweeping component, the water-washing component includes a water distributor, a water-washing roller brush, and a squeegee arranged sequentially from front to back, the squeegee having a water-absorbing channel inside; the water distributor has a water-distributing channel inside, and the lower surface of the water distributor is equipped with several water-distributing channels respectively. The vehicle features interconnected nozzles that spray water downwards; a roller brush drive motor is mounted on the frame corresponding to the washing roller brush, and the roller brush drive motor is connected to the washing roller brush drive; the frame also includes a clean water tank, a wastewater tank, and a clean water pump, which are connected sequentially via pipes; the wastewater tank and squeegee are also connected sequentially via pipes; the frame is equipped with a movable chassis that can be raised and lowered, on which the roller sweeping assembly, water distributor, washing roller brush, and squeegee brush strips are mounted; a lifting drive assembly is mounted on the frame corresponding to the movable chassis, and is connected to the movable chassis drive; the lifting drive assembly includes a linear drive module, a drive slider, and a scissor-type lifting mechanism; the roller sweeping assembly includes a roller sweeping brush rotatably mounted on the movable chassis, and a roller sweeping drive motor is mounted on the movable chassis corresponding to the roller sweeping brush, and is connected to the roller sweeping brush drive.

[0003] During the operation of the robotic vacuum cleaner, the sweeping and exhaust components first sweep the floor, followed by a water washing component for further cleaning. While the water washing component is cleaning, the water pump starts and supplies water from the tank to the water distribution channel of the distributor. The water entering the distribution channel is sprayed onto the floor through various nozzles. After the floor is washed, the brush drive motor rotates the washing brush, which then washes the floor. The squeegee's suction channel generates negative pressure, drawing wastewater from the floor after the washing brush into the wastewater tank for cleaning.

[0004] It should be noted that the aforementioned robotic vacuum cleaners have the following drawbacks, specifically: Defect 1: The sweeping component and the water-washing brush of this robot vacuum cleaner are installed in an integrated manner on the movable chassis. That is, the sweeping component and the water-washing brush adopt an integrated structural design, and the movable chassis is driven by a lifting drive component. As for the above-mentioned integrated installation method, it has the defects of inconvenient installation and maintenance and replacement, and it is not convenient for the sweeping brush and the water-washing brush to be independently lifted and adjusted. Defect 2: During the sweeping operation of the roller sweeper, the roller sweeper and the exhaust fan operate, and the exhaust fan sucks the garbage swept by the roller sweeper into the garbage bin; for the above-mentioned sweeping operation method, there is a problem of low cleaning efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a cleaning robot that addresses the shortcomings of existing technologies. This cleaning robot has a novel structural design, is easy to install, maintain and replace, and has high cleaning efficiency.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0007] A cleaning robot includes a main frame with a horizontal base plate arranged horizontally. The horizontal base plate is equipped with a walking drive component, and a side sweeping component, a roller sweeping component, a clean water spray pipe, a roller washing component, and a water suction squeegee are arranged sequentially from front to back below the horizontal base plate. The water suction squeegee has a water suction channel inside. The main frame is equipped with a clean water tank and a wastewater tank above the horizontal base plate. The clean water spray pipe is equipped with a water pump. The clean water discharge port of the clean water tank is connected to the water pump inlet through the clean water supply pipe, and the water pump outlet is connected to the clean water spray pipe through the clean water supply pipe. The lower end of the sewage tank is equipped with a sewage suction port, which is connected to the suction channel of the squeegee through a sewage suction pipe. The roller sweeping assembly includes a roller sweeping frame, a roller sweeping drive motor, and a roller sweeping brush driven by the roller sweeping drive motor. The roller sweeping drive motor is fixed to the roller sweeping frame, and the roller sweeping brush is rotatably mounted on the roller sweeping frame. The roller washing assembly includes a roller washing frame, a roller washing drive motor, and a roller washing brush driven by the roller washing drive motor. The roller washing drive motor is fixed to the roller washing frame, and the roller washing brush is rotatably mounted on the roller washing frame. Two substrate fixing members are installed on the lower surface of the horizontal substrate, which are arranged at a distance from each other. Each substrate fixing member has a U-shaped slot. Each substrate fixing member is equipped with a component top plate. Each component top plate has a docking block at one end. Each component top plate has a locking through hole at the end away from the corresponding docking block. The docking block of each component top plate is embedded in the U-shaped slot of the corresponding substrate fixing member. Each component top plate has a locking screw installed in the locking through hole and each component top plate is fastened to the horizontal substrate by the locking screw. The roller sweeper is located directly below the top plate of the front component, and a front electric lifter is installed between the roller sweeper and the top plate of the front component; the roller washer is located directly below the top plate of the rear component, and a rear electric lifter is installed between the roller washer and the top plate of the rear component. The roller brush frame has a downward-opening roller brush receiving cavity. A front roller brush for brushing dust backwards and a rear roller brush for brushing dust forwards and rotating synchronously with the front roller brush are rotatably mounted within the roller brush receiving cavity. A front scraper blade is provided on the inner wall of the roller brush receiving cavity near the rear roller brush. The left and right ends of the front and rear roller brushes are rotatably mounted on the roller brush frame via bearings. The power output shaft of the roller brush drive motor is connected to the front and rear roller brushes via gear transmission pairs. There is a speed difference between the front and rear roller brushes, with the rear roller brush rotating faster than the front roller brush. A dust box is installed on the side of the roller brush frame near the rear roller brush. The dust box has a dust storage cavity formed inside and a dust inlet communicating with the roller brush receiving cavity. A rear scraper blade is provided at the dust inlet position of the dust box, contacting the rear roller brush. The main frame is equipped with a controller, and the walking drive assembly, side sweeper assembly, roller sweeper drive motor, water pump, roller washing drive motor, front electric lifter, and rear electric lifter are electrically connected to the controller.

[0008] The clean water supply pipeline located between the clean water discharge port of the clean water tank and the water inlet of the water pump is equipped with a clean water filter and a solenoid valve arranged sequentially along the water flow direction. The solenoid valve is electrically connected to the controller.

[0009] The upper end of the sewage tank is provided with a fan interface, the main frame is equipped with an exhaust fan, the exhaust fan is connected to the fan interface of the sewage tank, and the exhaust fan is electrically connected to the controller.

[0010] The bottom surface of the dust box has a drainage hole that communicates with the dust storage cavity.

[0011] The clean water tank and the wastewater tank are respectively fixedly mounted on the upper surface of the horizontal base plate by means of fixed support legs.

[0012] The side-sweeping assembly includes a side-sweeping frame mounted on the front end of the horizontal base plate. The left and right ends of the side-sweeping frame are respectively equipped with side-sweeping drive motors. The power output shaft of each side-sweeping drive motor is respectively equipped with a side-sweeping brush, and each side-sweeping drive motor is electrically connected to the controller.

[0013] The main frame is equipped with a flip bracket corresponding to the squeegee. The front end of the flip bracket is pivotally hinged to the main frame, and the squeegee is installed at the rear end of the flip bracket. The main frame is equipped with a tilting drive mechanism corresponding to the tilting bracket, and the tilting drive mechanism is connected to the tilting bracket in a drive connection.

[0014] The flipping drive mechanism includes an electric push rod that is screwed to the rear end of the horizontal base plate and moves vertically, and a hook installed at the front end of the flipping bracket. A pull rope is installed between the drive end of the electric push rod and the hook. A pulley is installed at the rear end of the horizontal base plate next to the electric push rod, and the pull rope passes around the pulley.

[0015] Compared with the prior art, the present invention has the following beneficial effects, specifically: 1. Because one end of the component top plate is held and fixed by the U-shaped slot of the base plate fixing member, and the other end is fastened by the locking screw, this assembly connection method of the component top plate allows for quick assembly and disassembly of the roller sweeping component and the roller washing component, and allows the roller sweeping component and the roller washing component to be installed on the main frame in an independent and separate manner. When it is necessary to disassemble and replace the roller sweeping component or the roller washing component for maintenance, the operator can quickly and independently disassemble and replace the roller sweeping component or the roller washing component for maintenance. Compared with the prior art, the present invention is more convenient to install and replace and maintain. 2. The sweeping frame is driven by a front electric lift, and the washing frame is driven by a rear electric lift. During use, the operator can adjust the height of the sweeping frame and the washing frame according to the floor cleaning requirements, and thus adjust the sweeping height of the front and rear sweeping brushes and the washing height of the washing brush. Compared with the existing integrated assembly method, the cleaning robot of the present invention is more convenient to use. 3. The cleaning robot of the present invention can effectively improve the efficiency of garbage and dust removal; 4. Therefore, the cleaning robot of the present invention has the advantages of novel structural design, convenient installation and maintenance and replacement, and high cleaning efficiency. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention.

[0019] Figure 3 This is a partial structural diagram of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the horizontal substrate of the present invention.

[0021] Figure 5 This is a schematic diagram of the structure of the roller sweeping assembly of the present invention.

[0022] Figure 6 This is a schematic diagram of the structure of the sweeping assembly of the present invention from another perspective.

[0023] Figure 7 This is a cross-sectional schematic diagram of the roller sweeping assembly of the present invention.

[0024] Figure 8 This is a partial structural diagram of another location of the present invention.

[0025] exist Figures 1 to 8 This includes: 1-Main frame; 11-Horizontal base plate; 12-Base plate fixing component; 121-U-shaped slot; 13-Component top plate; 131-Matching block; 132-Locking through hole; 14-Locking screw; 15-Fixing foot; 2-Walking drive assembly; 3-Side sweeping assembly; 31-Side sweeping frame; 32-Side sweeping drive motor; 33-Side sweeping brush; 4-Rolling sweeping assembly; 41-Rolling sweeping frame; 411-Rolling brush receiving cavity; 42-Rolling sweeping drive motor; 431-Front rolling sweeping brush; 432-Rear rolling sweeping brush; 44-Front electric lifter; 45-Front scraper; 46-Gear transmission pair; 47-Dust box; 4 71-Dust storage chamber; 472-Dust inlet; 473-Rear scraper; 474-Drain hole; 51-Clean water spray pipe; 52-Water pump; 53-Clean water supply pipe; 54-Clean water filter; 55-Solenoid valve; 6-Roller washing assembly; 61-Roller washing frame; 62-Roller washing drive motor; 63-Roller washing brush; 64-Rear electric lifter; 71-Squeezing squeegee; 72-Tilting bracket; 73-Pivot; 74-Electric push rod; 75-Hook; 76-Pull rope; 77-Pulley; 8-Clean water tank; 81-Clean water discharge port; 9-Sewage tank; 91-Sewage suction port; 92-Fan interface. Detailed Implementation

[0026] The present invention will now be described in conjunction with specific embodiments.

[0027] Example 1, as Figure 1 and Figure 2 As shown, a cleaning robot includes a main frame 1. The main frame 1 has a horizontally arranged base plate 11. The horizontal base plate 11 is equipped with a walking drive assembly 2. Below the horizontal base plate 11, a side sweeping assembly 3, a roller sweeping assembly 4, a clean water spray pipe 51, a roller washing assembly 6, and a squeegee 71 are arranged sequentially from front to back at intervals. The squeegee 71 has a water suction channel inside. It should be noted that the walking drive assembly 2 and the squeegee 7 in this embodiment are already prior art and will not be described in detail here.

[0028] Among them, such as Figures 1 to 3 As shown, the main frame 1 is equipped with a clean water tank 8 and a wastewater tank 9 above the horizontal base plate 11. A clean water spray pipe 51 is fitted with a water pump 52. The clean water discharge port 81 of the clean water tank 8 is connected to the inlet of the water pump 52 through a clean water supply pipe 53, and the outlet of the water pump 52 is connected to the clean water spray pipe 51 through the clean water supply pipe 53. It should be noted that the clean water tank 8 and the wastewater tank 9 are respectively fixedly installed on the upper surface of the horizontal base plate 11 by fixing feet 15.

[0029] Furthermore, such as Figure 1 and Figure 2 As shown, a sewage suction port 91 is provided at the lower end of the sewage tank 9, and the sewage suction port 91 is connected to the suction channel of the squeegee 71 through a sewage suction pipe.

[0030] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 As shown, the roller sweeping assembly 4 includes a roller sweeping frame 41, a roller sweeping drive motor 42, and a roller sweeping brush driven by the roller sweeping drive motor 42. The roller sweeping drive motor 42 is fixed to the roller sweeping frame 41, and the roller sweeping brush is rotatably mounted on the roller sweeping frame 41. The roller washing assembly 6 includes a roller washing frame 61, a roller washing drive motor 62, and a roller washing brush 63 driven by the roller washing drive motor 62. The roller washing drive motor 62 is fixed to the roller washing frame 61, and the roller washing brush 63 is rotatably mounted on the roller washing frame 61.

[0031] In addition, such as Figure 3 and Figure 4 As shown, two substrate fixing members 12 arranged at a distance from each other are installed on the lower surface of the horizontal substrate 11. Each substrate fixing member 12 is provided with a U-shaped slot 121. Each substrate fixing member 12 is equipped with a component top plate 13. One end of each component top plate 13 is provided with a docking block 131. Each component top plate 13 is provided with a locking through hole 132 at the end away from the corresponding docking block 131. The docking block 131 of each component top plate 13 is respectively embedded in the U-shaped slot 121 of the corresponding substrate fixing member 12. Each component top plate 13 is provided with a locking screw 14 in the locking through hole 132 and each component top plate 13 is screwed and fastened to the horizontal substrate 11 by the locking screw 14.

[0032] It should be noted that, as Figures 1 to 3 As shown, the roller sweeper 41 is located directly below the front component top plate 13, and a front electric lifter 44 is installed between the roller sweeper 41 and the front component top plate 13; the roller washer 61 is located directly below the rear component top plate 13, and a rear electric lifter 64 is installed between the roller washer 61 and the rear component top plate 13.

[0033] And also, such as Figures 5 to 7 As shown, the roller brush frame 41 has a downward-opening roller brush receiving cavity 411. A front roller brush 431 for brushing dust backwards and a rear roller brush 432 for brushing dust forwards and rotating synchronously with the front roller brush 431 are rotatably mounted inside the roller brush receiving cavity 411. A front scraper 45 is provided on the inner wall of the roller brush receiving cavity 411 near the rear roller brush 432. The left and right ends of the front roller brush 431 and the left and right ends of the rear roller brush 432 are rotatably mounted on the roller brush frame 41 via bearings. The power output shaft of the roller brush drive motor 42 is connected to the roller brush frame 41 via bearings. The gear transmission pair 46 is driven to connect with the front roller brush 431 and the rear roller brush 432. There is a speed difference between the front roller brush 431 and the rear roller brush 432, and the rotational speed of the rear roller brush 432 is greater than that of the front roller brush 431. A dust box 47 is installed on the side of the roller brush frame 41 near the rear roller brush 432. The dust box 47 has a dust storage cavity 471 formed inside, and the dust box 47 has a dust inlet 472 that communicates with the roller brush receiving cavity 411. A rear scraper 473 that contacts the rear roller brush 432 is provided at the dust inlet 472 of the dust box 47. In this embodiment, the dust box 47 has a hollow structure, and the dust storage cavity 471 of the dust box 47 has a filter structure to prevent dust and garbage from being discharged. This hollow structure design can ensure that the centrifugal airflow generated by the rear roller brush 432 enters the dust storage cavity 471, thereby allowing garbage and dust to enter the dust storage cavity 471.

[0034] It should be further noted that the main frame 1 is equipped with a controller, and the walking drive assembly 2, the side sweeper assembly 3, the roller sweeper drive motor 42, the water pump 52, the roller washing drive motor 62, the front electric lifter 44, and the rear electric lifter 64 are electrically connected to the controller.

[0035] It should be emphasized that in this embodiment, the sweeping assembly 4 is mounted on the horizontal base plate 11 via the front component top plate 13, and the washing assembly 6 is mounted on the horizontal base plate 11 via the rear component top plate 13. Since one end of the component top plate 13 is held and fixed by the U-shaped slot 121 of the base plate fixing member 12, and the other end is screwed on by the locking screw 14, this assembly connection method allows for quick assembly and disassembly of the sweeping assembly 4 and the washing assembly 6, and allows them to be independently and separately mounted on the main frame 1. When it is necessary to disassemble or replace the sweeping assembly 4 or the washing assembly 6 for maintenance, the operator can quickly and independently disassemble and replace them. Compared with the prior art, the cleaning robot of this embodiment is more convenient to install and more convenient to replace and maintain.

[0036] It should be further emphasized that the sweeping frame 41 in this embodiment is driven by the front electric lifter 44, and the washing frame 61 in this embodiment is driven by the rear electric lifter 64. During floor cleaning operations using the cleaning robot of this embodiment, workers can adaptively adjust the height of the sweeping frame 41 and the washing frame 61 according to the floor cleaning requirements, thereby adaptively adjusting the sweeping height of the front sweeping brush 431 and the rear sweeping brush 432, as well as the washing height of the washing brush 63. Compared to existing integrated assembly methods, the cleaning robot of this embodiment is more convenient to use.

[0037] During the cleaning process of the roller sweeping assembly 4 in this embodiment, the roller sweeping drive motor 42 drives the front roller sweeping brush 431 and the rear roller sweeping brush 432 to rotate at different speeds, with the rotational speed of the rear roller sweeping brush 432 being greater than that of the front roller sweeping brush 431. When the front roller sweeping brush 431 brushes up dust from the ground, the debris or dust adhering to it is partially blocked and intercepted by the front scraper 45. The rear roller sweeping brush 432 rotates at a higher speed, causing the debris and dust adhering to it to be carried into the dust storage chamber 471 of the dust box 47 under the action of centrifugal force. The rear scraper 473, located at the dust inlet 472, can scrape some debris and dust into the dust storage chamber 471 through the dust inlet 472. For the debris and dust collection method of the roller sweeping assembly 4 in this embodiment, it can effectively adapt to the high-speed roller sweeping environment and effectively improve the debris and dust cleaning efficiency.

[0038] In summary, the cleaning robot of this embodiment has the advantages of novel structural design, convenient installation and maintenance, and high cleaning efficiency. Example 2, as Figure 2 and Figure 3 As shown, the difference between this embodiment 2 and embodiment 1 is that the clean water supply pipe 53 located between the clean water discharge port 81 of the clean water tank 8 and the water inlet of the water pump 52 is equipped with a clean water filter 54 and a solenoid valve 55 arranged sequentially along the water flow direction. The solenoid valve 55 is electrically connected to the controller.

[0039] It should be explained that the water filter 54 can effectively filter impurities and dirt from the water. The filter has a filter element and filter screen that can be cleaned regularly to prevent impurities and dirt from entering the water supply pipe 53 and causing blockage.

[0040] In addition, the solenoid valve 55 can effectively control the on / off state of the clean water supply pipe 53, and thus achieve the water-locking function by disconnecting the clean water supply pipe 53, so as to achieve precise control of the spraying time of the clean water spray pipe 51. Example 3, as Figure 1 and Figure 2 As shown, the difference between this embodiment three and embodiment one is that: the upper end of the sewage tank 9 is provided with a fan interface 92, the main frame 1 is equipped with an exhaust fan, the exhaust fan is connected to the fan interface 92 of the sewage tank 9, and the exhaust fan is electrically connected to the controller.

[0041] It should be explained that during the operation of the cleaning robot in this embodiment three, when it is necessary to perform water suction on the ground using the squeegee 71, the controller controls the start of the exhaust fan. The exhaust fan creates a negative pressure inside the sewage tank 9. This negative pressure causes the sewage suction pipe and the suction channel of the squeegee 71 to generate negative suction, thereby realizing the sewage suction action, so that the sewage sucked by the squeegee 71 is stored in the sewage tank 9. Example 4, as Figure 6 As shown, the difference between this embodiment four and embodiment one is that the bottom surface of the dust box 47 is provided with a water leakage hole 474 that communicates with the dust storage cavity 471.

[0042] For the drainage hole 474 in this embodiment, it has the following functions: it facilitates the discharge of excess sewage from the dust box 47 to the ground, and the sewage is then sucked into the sewage tank 9 by the suction squeegee 71. The drainage hole 474 enables the dust box 47 to have a sewage discharge function, which can effectively improve the space utilization of the dust storage cavity 471 of the dust box 47. Example 5, as Figure 1 and Figure 2 As shown, the difference between this fifth embodiment and the first embodiment is that the side sweeping assembly 3 includes a side sweeping frame 31 mounted on the front end of the horizontal base plate 11. The left and right ends of the side sweeping frame 31 are respectively equipped with side sweeping drive motors 32. The power output shaft of each side sweeping drive motor 32 is respectively equipped with a side sweeping brush 33, and each side sweeping drive motor 32 is electrically connected to the controller.

[0043] For the side sweeping component 3 in this embodiment 5, during the floor cleaning operation of the sweeping robot, the side sweeping drive motors 32 on the left and right sides respectively move and drive the corresponding side sweeping brushes 33 to rotate. The two side sweeping brushes 33 rotate in opposite directions, thereby causing the garbage and dust on the robot's path to be concentrated in the middle of the vehicle body, so that the subsequent roller sweeping component 4 and roller washing component 6 can perform centralized cleaning. Example 6, as Figure 2 and Figure 8 As shown, the difference between this embodiment six and embodiment one is that: the main frame 1 is equipped with a flip bracket 72 corresponding to the squeegee 71, the front end of the flip bracket 72 is hinged to the main frame 1 via a pivot 73, and the squeegee 71 is installed at the rear end of the flip bracket 72.

[0044] The main frame 1 is equipped with a tilting drive mechanism corresponding to the tilting bracket 72, and the tilting drive mechanism is connected to the tilting bracket 72 in a drive connection.

[0045] Specifically, such as Figure 2 and Figure 8 As shown, the flipping drive mechanism includes an electric push rod 74 that is screwed to the rear end of the horizontal base plate 11 and moves vertically, and a hook 75 installed at the front end of the flipping bracket 72. A pull rope 76 is installed between the drive end of the electric push rod 74 and the hook 75. A pulley 77 is installed on the side of the electric push rod 74 at the rear end of the horizontal base plate 11, and the pull rope 76 passes around the pulley 77.

[0046] When sewage suction is required using the squeegee 71, the controller controls the electric push rod 74 to move. The electric push rod 74 drives one end of the traction rope upwards. During this process, the weight of the rear end of the tilting bracket 72 causes the rear end of the tilting bracket 72 to tilt downwards, thus bringing the squeegee 71 into contact with the ground. When it is necessary to lift the squeegee 71, the controller controls the electric push rod 74 to move in the opposite direction.

[0047] The above description is only a preferred embodiment of the present invention. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention.

Claims

1. A cleaning robot, comprising a main frame (1), the main frame (1) being provided with a horizontal base plate (11) arranged horizontally, the horizontal base plate (11) being equipped with a walking drive assembly (2), and the bottom of the horizontal base plate (11) being provided with a side sweep assembly (3), a roller sweep assembly (4), a clean water spray pipe (51), a roller washing assembly (6) and a water suction squeegee (71) arranged sequentially from front to back, the water suction squeegee (71) having a water suction channel inside; The main frame (1) is equipped with a clean water tank (8) and a wastewater tank (9) above the horizontal base plate (11). The clean water spray pipe (51) is equipped with a water pump (52). The clean water discharge port (81) of the clean water tank (8) is connected to the water inlet of the water pump (52) through the clean water supply pipe (53). The water outlet of the water pump (52) is connected to the clean water spray pipe (51) through the clean water supply pipe (53). The lower end of the sewage tank (9) is provided with a sewage suction port (91), which is connected to the suction channel of the squeegee (71) through a sewage suction pipe; The sweeping assembly (4) includes a sweeping frame (41), a sweeping drive motor (42), and a sweeping brush driven by the sweeping drive motor (42). The sweeping drive motor (42) is fixed to the sweeping frame (41), and the sweeping brush is rotatably mounted on the sweeping frame (41). The washing assembly (6) includes a washing frame (61), a washing drive motor (62), and a washing brush (63) driven by the washing drive motor (62). The washing drive motor (62) is fixed to the washing frame (61), and the washing brush (63) is rotatably mounted on the washing frame (61). Its features are: Two substrate fixing members (12) are arranged in a front-to-back interval on the lower surface of the horizontal substrate (11). Each substrate fixing member (12) is provided with a U-shaped slot (121). Each substrate fixing member (12) is equipped with a component top plate (13). Each component top plate (13) is provided with a docking block (131) at one end. Each component top plate (13) is provided with a locking through hole (132) at the end away from the corresponding docking block (131). The docking block (131) of each component top plate (13) is embedded in the U-shaped slot (121) of the corresponding substrate fixing member (12). Each component top plate (13) is provided with a locking screw (14) in the locking through hole (132). Each component top plate (13) is screwed and fastened to the horizontal substrate (11) by the locking screw (14). The roller sweeper (41) is located directly below the front component top plate (13), and a front electric lifter (44) is installed between the roller sweeper (41) and the front component top plate (13); the roller washer (61) is located directly below the rear component top plate (13), and a rear electric lifter (64) is installed between the roller washer (61) and the rear component top plate (13). The roller brush frame (41) is formed with a downward-opening roller brush receiving cavity (411). A front roller brush (431) for brushing dust backward and a rear roller brush (432) for brushing dust forward and rotating synchronously with the front roller brush (431) are rotatably installed in the roller brush receiving cavity (411) of the roller brush frame (41). A front scraper (45) near the rear roller brush (432) is provided on the inner wall of the roller brush receiving cavity (411). The left and right ends of the front roller brush (431) and the left and right ends of the rear roller brush (432) are rotatably installed on the roller brush frame (41) through bearings. The power output shaft of the roller brush drive motor (42) is transmitted through a gear pair ( 46) Drive connection with front roller brush (431) and rear roller brush (432), there is a speed difference between front roller brush (431) and rear roller brush (432) and the rotation speed of rear roller brush (432) is greater than that of front roller brush (431); the roller brush frame (41) is equipped with a dust box (47) on the side near the rear roller brush (432), the dust box (47) has a dust storage cavity (471) formed inside, and the dust box (47) has a dust inlet (472) communicating with the roller brush receiving cavity (411), and the dust box (47) is provided with a rear scraper (473) in contact with the rear roller brush (432) at the dust inlet (472); The main frame (1) is equipped with a controller, and the walking drive assembly (2), the side sweeping assembly (3), the roller sweeping drive motor (42), the water pump (52), the roller washing drive motor (62), the front electric lifter (44), and the rear electric lifter (64) are electrically connected to the controller respectively.

2. The cleaning robot according to claim 1, characterized in that: The clean water supply pipe (53) located between the clean water discharge port (81) of the clean water tank (8) and the water inlet of the water pump (52) is equipped with a clean water filter (54) and a solenoid valve (55) arranged sequentially along the water flow direction. The solenoid valve (55) is electrically connected to the controller.

3. The cleaning robot according to claim 1, characterized in that: The upper end of the sewage tank (9) is provided with a fan interface (92), the main frame (1) is equipped with an exhaust fan, the exhaust fan is connected to the fan interface (92) of the sewage tank (9), and the exhaust fan is electrically connected to the controller.

4. A cleaning robot according to claim 1, characterized in that: The bottom surface of the dust box (47) is provided with a water leakage hole (474) that communicates with the dust storage cavity (471).

5. A cleaning robot according to claim 1, characterized in that: The clean water tank (8) and the wastewater tank (9) are respectively fixedly installed on the upper surface of the horizontal base plate (11) by fixed support feet (15).

6. A cleaning robot according to claim 1, characterized in that: The side sweeping assembly (3) includes a side sweeping frame (31) mounted on the front end of the horizontal base plate (11). The left and right ends of the side sweeping frame (31) are respectively equipped with side sweeping drive motors (32). The power output shaft of each side sweeping drive motor (32) is respectively equipped with a side sweeping brush (33), and each side sweeping drive motor (32) is electrically connected to the controller.

7. A cleaning robot according to claim 1, characterized in that: The main frame (1) is equipped with a flip bracket (72) corresponding to the squeegee (71). The front end of the flip bracket (72) is hinged to the main frame (1) via a pivot (73), and the squeegee (71) is installed at the rear end of the flip bracket (72). The main frame (1) is equipped with a flipping drive mechanism corresponding to the flipping bracket (72), and the flipping drive mechanism is connected to the flipping bracket (72) in a drive connection.

8. A cleaning robot according to claim 7, characterized in that: The flipping drive mechanism includes an electric push rod (74) that is screwed to the rear end of the horizontal base plate (11) and moves vertically, and a hook (75) installed at the front end of the flipping bracket (72). A pull rope (76) is installed between the drive end of the electric push rod (74) and the hook (75). A pulley (77) is installed at the rear end of the horizontal base plate (11) next to the electric push rod (74), and the pull rope (76) passes around the pulley (77).

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