SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a full-automatic sofa maintenance robot, the main body of which comprises an upper body part, a connecting part, a walking part, a maintenance part, an upper dust absorption part, a cleaning part, a lower dust absorption part and the like; when the sofa cleaning machine is used, the walking part controls the robot to walk to the position near the sofa, the lower dust suction part and the cleaning part arranged on the connecting part clean the side face below the sofa, the upper dust suction part sucks dust from the sofa, the cleaning part of the upper body part cleans the sofa, and then the maintenance part adds a maintenance agent to the leather of the sofa and uniformly smears the leather to complete the maintenance process.
The utility model discloses the technical scheme who uses is: a full-automatic sofa maintenance robot comprises an upper body part, a connecting part, a walking part, a maintenance part, an upper dust absorption part, a cleaning part and a lower dust absorption part; the upper body part includes: the lifting device comprises an upper lifting frame, a lifting guide rail, a lifting screw rod, a first stepping motor, a first gear, a lifting ring seat and a circular guide rail; the connection portion includes: the connecting disc, the second gear and the buffer spring; the walking part includes: the device comprises a rotating disc, a third gear, a fourth gear, a second stepping motor, an electric cylinder group seat, a first electric cylinder, a walking frame, a third stepping motor, a walking crawler and a walking base; the maintenance part includes: the device comprises an annular moving block, a fourth stepping motor, a fifth gear, a fifth stepping motor, a first transmission belt, an electric cylinder base, a second electric cylinder, an electric cylinder lifting seat, a sixth stepping motor, a second transmission belt, an inner rotating block, a seventh stepping motor, an outer rotating seat, an eighth stepping motor, a ninth stepping motor, a third transmission belt, an outer fixing block, a telescopic screw rod, an inner telescopic block, a tenth stepping motor, a brush seat, a third electric cylinder, a maintenance oil tank, an oil outlet, an extrusion block and a rolling brush; the upper dust suction part comprises: the dust collection device comprises an annular rotating block, an eleventh stepping motor, a sixth gear, a twelfth stepping motor, a fourth transmission belt, a fixed telescopic frame, a thirteenth stepping motor, a dust collection guide rail, a dust collection screw rod, a dust box, a dust collection pipe, a telescopic frame, a fourteenth stepping motor, a fifth transmission belt, a conversion block, a fifteenth stepping motor, a sixth transmission belt, a seventh gear, an eighth gear, a sixteenth stepping motor, a dust collection shell, a dust collection rolling shaft, a rotating motor and dust collection fan blades; the sweeping part includes: the cleaning brush comprises a cleaning brush body, a brush fixing frame, a parallel tail end, a seventeenth stepping motor, an eighteenth stepping motor, a cylindrical shaft, a first bevel gear, a second bevel gear, a gear connecting shaft, a first bidirectional asynchronous motor, a third bevel gear, a fourth bevel gear, a parallel seat, a fifth bevel gear, a sixth bevel gear, a second bidirectional asynchronous motor, a seventh bevel gear, an eighth bevel gear, a connecting rod, a ninth gear, a nineteenth stepping motor, a circular traveling frame, a lifting rotary seat, a twentieth stepping motor and a tenth gear; the lower dust suction part comprises: the dust collection device comprises an upper and lower rotating block, a twentieth stepping motor, an eleventh gear, a ninth bevel gear, a tenth bevel gear, a connecting arm, a third bidirectional asynchronous motor, an eleventh bevel gear, a twelfth bevel gear, a fixed guide rail frame, a descending screw rod, a twenty-second stepping motor, a descending block, a twenty-third stepping motor, a seventh driving belt, a dust collection shell, a dust collection cover, a dust collection nozzle, a twenty-fourth stepping motor and a dust collection fan.
The lifting guide rail of the upper body part is fixedly arranged on an upper lifting frame, a first stepping motor is fixedly arranged on the upper lifting frame, one end of a lifting screw rod is fixedly arranged on the first stepping motor, the other end of the lifting screw rod is rotatably arranged on the upper lifting frame, a lifting ring seat and the lifting screw rod are in threaded transmission, the lifting ring seat and the lifting guide rail are slidably arranged, and a first gear and a circular guide rail are fixedly arranged on the lifting ring seat.
The connecting disc of the connecting part is fixedly arranged on the upper lifting frame, the second gear is fixedly arranged on the connecting disc, one end of the buffer spring is fixedly arranged on the connecting disc, and the other end of the buffer spring is fixedly arranged on the rotating disc.
The third gear of the traveling part is fixedly arranged on the electric cylinder group seat, the second stepping motor is fixedly arranged on the rotating disc, the fourth gear is fixedly arranged on the second stepping motor and meshed with the fourth gear, the rotating disc and the electric cylinder group seat are rotatably arranged through a rolling bearing, the bottom of the first electric cylinder is fixedly arranged on the electric cylinder group seat, the traveling frame is fixedly arranged at the top of the first electric cylinder, the third stepping motor is fixedly arranged on the traveling frame, the traveling crawler belt is wound on the third stepping motor and the outer side of the traveling frame, and the electric cylinder group seat is fixedly arranged on the traveling base.
The annular moving block of the maintenance part is slidably mounted with the annular guide rail, a fourth stepping motor is fixedly mounted on the annular moving block, a fifth gear is fixedly mounted on the fourth stepping motor, the fifth gear is meshed with the first gear, the fifth stepping motor is fixedly mounted on the annular moving block, an electric cylinder base and the annular moving block are rotatably mounted through a rotating shaft, a first transmission belt is wound on the outer sides of the fifth stepping motor and the rotating shaft, the bottom of a second electric cylinder is fixedly mounted on the electric cylinder base, the top of the second electric cylinder is fixedly mounted on an electric cylinder lifting seat, the electric cylinder lifting seat is slidably mounted with the electric cylinder base, a sixth stepping motor is fixedly mounted on the electric cylinder lifting seat, a rotating block and the electric cylinder lifting seat are rotatably mounted through the rotating shaft, a second transmission belt is wound on the outer sides of the sixth stepping motor and the rotating shaft, a seventh stepping motor is fixedly mounted on an inner rotating block, an outer rotating block is fixedly mounted on a, an eighth stepping motor is fixedly installed on an outer fixed block, a ninth stepping motor is fixedly installed on the outer fixed block, the outer fixed block and the outer rotating block are rotatably installed through a rotating shaft, a third transmission belt is wound outside the eighth stepping motor and the rotating shaft, one end of a telescopic screw rod is fixedly installed on the ninth stepping motor, the other end of the telescopic screw rod is rotatably installed on the outer fixed block, an inner telescopic block and the telescopic screw rod are in threaded transmission, the inner telescopic block and the outer fixed block are slidably installed, a tenth stepping motor is fixedly installed on the inner telescopic block, a brush holder is fixedly installed on the tenth stepping motor, a third electric cylinder is fixedly installed on a brush holder, an extrusion block is fixedly installed at the top of the third electric cylinder, a maintenance oil tank is installed on the brush holder, an oil outlet is fixedly installed on the oil tank, and a rolling brush.
The annular rotating block of the upper dust absorption part is slidably mounted with the annular guide rail, an eleventh stepping motor is fixedly mounted on the annular rotating block, a sixth gear is fixedly mounted on the eleventh stepping motor, the sixth gear is meshed with the first gear, a twelfth stepping motor is fixedly mounted on the annular rotating block, a fixed telescopic frame and the annular rotating block are rotatably mounted through a rotating shaft, a fourth driving belt is wound outside the twelfth stepping motor and the rotating shaft, a thirteenth stepping motor is fixedly mounted on the fixed telescopic frame, two ends of a dust absorption guide rail are fixedly mounted on the fixed telescopic frame, one end of a dust absorption lead screw is fixedly mounted on the thirteenth stepping motor, the other end of the dust absorption lead screw is rotatably mounted on the fixed telescopic frame, the telescopic frame and the telescopic lead screw are in lead screw transmission, the telescopic frame and the telescopic guide rail are slidably mounted, a dust box is fixedly mounted at the bottom of the telescopic frame, and the fourteenth stepping motor, the annular block is rotatably installed with the expansion bracket through a rotating shaft, a fifth transmission belt is wound on the outer side of a fourteenth stepping motor and the outer side of the rotating shaft, a fifteenth stepping motor is fixedly installed on the annular block, the annular block and the conversion block are rotatably installed through the rotating shaft, a sixth transmission belt is wound on the outer side of the fifteenth stepping motor and the rotating shaft, the conversion block and the dust collection shell are rotatably installed through the rotating shaft, a seventh gear is fixedly installed on the rotating shaft, a sixteenth stepping motor is fixedly installed on the dust collection shell, an eighth gear is fixedly installed on the sixteenth stepping motor, a seventh gear is meshed with the eighth gear, a dust collection roller is rotatably installed on the dust collection shell, a rotating motor is fixedly installed on the dust collection shell, a dust collection fan blade is fixedly installed on the rotating motor, one end of a dust collection pipe is fixedly.
The cleaning brush of the cleaning part is fixedly arranged on a brush fixing frame which is fixedly arranged on a seventeenth stepping motor, the seventeenth stepping motor is fixedly arranged on the parallel tail end, a cylindrical shaft and the parallel tail end are rotatably arranged through an eighteenth stepping motor, the eighteenth stepping motor is fixedly arranged on the parallel tail end, the cylindrical shaft and a connecting rod are rotatably arranged through a rotating shaft, a first bevel gear is fixedly arranged on the rotating shaft, a second bevel gear is fixedly arranged on a gear connecting shaft, the gear connecting shaft is fixedly arranged on a first bidirectional asynchronous motor, the first bevel gear is meshed with the second bevel gear, the first bidirectional asynchronous motor is fixedly arranged on the connecting rod, a third bevel gear is fixedly arranged on the gear connecting shaft, a parallel seat and the connecting rod are rotatably arranged through the rotating shaft, a fourth bevel gear is fixedly arranged on the rotating shaft, the third bevel gear is meshed with the fourth bevel gear, and the parallel seat and the connecting rod are rotatably arranged through, a fifth bevel gear is fixedly arranged on the rotating shaft, a second bidirectional asynchronous motor is fixedly arranged on the connecting rod, a sixth bevel gear and a seventh bevel gear are fixedly arranged on the second bidirectional asynchronous motor, the fifth bevel gear is meshed with the sixth bevel gear, the connecting rod is rotatably arranged with the circular ring walking frame through the rotating shaft, an eighth bevel gear is fixedly arranged on the rotating shaft, the seventh bevel gear is meshed with the eighth bevel gear, a nineteenth step motor is fixedly arranged on the circular ring walking frame, a ninth gear is fixedly arranged on the nineteenth step motor, the circular ring walking frame is slidably arranged with the circular ring guide rail, the ninth gear is meshed with the first gear, the connecting rod of the cleaning part arranged on the connecting part is rotatably arranged with the lifting rotary seat through the rotating shaft, the eighth bevel gear is fixedly arranged on the rotating shaft, a twentieth step motor is fixedly arranged on the lifting rotary seat, and the tenth gear is fixedly arranged on the twenti, the tenth gear is meshed with the second gear.
The twenty-first stepping motor of the lower dust absorption part is fixedly arranged on the upper and lower rotating blocks, the eleventh gear is fixedly arranged on the twenty-first stepping motor and is meshed with the second gear, the connecting arm is rotatably arranged with the upper and lower rotating blocks through a rotating shaft, the ninth bevel gear is fixedly arranged on the rotating shaft, the third bidirectional asynchronous motor is fixedly arranged on the connecting arm, the tenth bevel gear and the eleventh bevel gear are fixedly arranged on the third bidirectional asynchronous motor and are meshed with each other, the fixed guide rail frame and the connecting arm are rotatably arranged through the rotating shaft, the twelfth bevel gear is fixedly arranged on the rotating shaft and is meshed with the twelfth bevel gear, the twenty-second stepping motor is fixedly arranged on the fixed guide rail frame, one end of the descending screw rod is fixedly arranged on the twenty-second stepping motor, and the other end of the descending screw rod is rotatably arranged on the fixed guide rail frame, the descending block and the descending screw rod are in threaded transmission, the descending block and the fixed guide rail frame are installed in a sliding mode, the twenty-third stepping motor is fixedly installed on the descending block, the dust collection shell and the descending block are installed in a rotating mode through a rotating shaft, a seventh transmission belt is wound on the outer sides of the rotating shaft and the twenty-third stepping motor, the dust collection cover is fixedly installed on the dust collection shell, the dust collection nozzle is fixedly installed on the dust collection shell, the twenty-fourth stepping motor is fixedly installed on the dust collection shell, and the dust collection fan is fixedly installed on the twenty-fourth stepping motor.
The first electric cylinder, the second electric cylinder, the third electric cylinder, the first stepping motor, the second stepping motor, the third stepping motor, the fourth stepping motor, the fifth stepping motor, the sixth stepping motor, the seventh stepping motor, the eighth stepping motor, the ninth stepping motor, the tenth stepping motor, the eleventh stepping motor, the twelfth stepping motor, the thirteenth stepping motor, the fourteenth stepping motor, the fifteenth stepping motor, the sixteenth stepping motor, the seventeenth stepping motor, the eighteenth stepping motor, the nineteenth stepping motor, the twentieth stepping motor, the twenty-third stepping motor, the twenty-fourth stepping motor, the first bidirectional asynchronous motor, the second bidirectional asynchronous motor and the third bidirectional asynchronous motor are all controlled by a control box.
The utility model discloses beneficial effect: (1) the mechanical arm arranged on the upper body part of the utility model cleans and maintains the sofa body, and the mechanical arm arranged on the connecting part cleans the lower part of the non-genuine leather of the sofa; (2) the walking part of the utility model can realize the all-directional walking by the lifting and steering control of each crawler belt, and the connecting part is provided with a buffer spring to achieve the damping effect; (3) the dust collection part, the cleaning part and the maintenance part of the utility model can realize the actions of rotation, translation and the like, and are used for cleaning and maintaining.
Detailed Description
The present invention will be further described with reference to specific embodiments, illustrative embodiments and description of which are provided herein to explain the present invention, but not to limit the present invention.
Referring to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, the robot for full-automatic sofa maintenance includes an upper lifting frame 101, a first stepping motor 104 fixedly mounted on the upper lifting frame 101, a lifting screw 103 having one end fixedly mounted on the first stepping motor 104 and the other end rotatably mounted on the upper lifting frame 101, a lifting ring seat 106 in threaded engagement with the lifting screw 103, a lifting ring seat 106 slidably mounted on the lifting rail 102, and a first gear 105 and a circular ring rail 107 fixedly mounted on the lifting ring seat 106.
The connection plate 201 of the connection part 2 is fixedly installed on the upper elevating frame 101, the second gear 202 is fixedly installed on the connection plate 201, and one end of the buffer spring 203 is fixedly installed on the connection plate 201 and the other end is fixedly installed on the rotating disc 301.
The third gear 302 of the traveling part 3 is fixedly installed on an electric cylinder group seat 305, the second stepping motor 304 is fixedly installed on the rotary disc 301, the fourth gear 303 is fixedly installed on the second stepping motor 304, the third gear 302 is meshed with the fourth gear 303, the rotary disc 301 and the electric cylinder group seat 305 are rotatably installed through a rolling bearing, the bottom of the first electric cylinder 306 is fixedly installed on the electric cylinder group seat 305, a traveling frame 307 is fixedly installed at the top of the first electric cylinder 306, the third stepping motor 308 is fixedly installed on the traveling frame 307, a traveling crawler 309 is wound on the outer sides of the third stepping motor 308 and the traveling frame 307, and the electric cylinder group seat 305 is fixedly installed on the traveling base 310.
The annular moving block 401 of the maintenance part 4 is slidably mounted with the annular guide rail 207, the fourth stepping motor 402 is fixedly mounted on the annular moving block 401, the fifth gear 403 is fixedly mounted on the fourth stepping motor 402, the fifth gear 403 is engaged with the first gear 105, the fifth stepping motor 404 is fixedly mounted on the annular moving block 401, the cylinder base 406 and the annular moving block 401 are rotatably mounted through a rotating shaft, the first transmission belt 405 is wound on the outer sides of the fifth stepping motor 404 and the rotating shaft, the bottom of the second cylinder 407 is fixedly mounted on the cylinder base 406, the top of the second cylinder 407 is fixedly mounted on the cylinder lifting base 408, the cylinder lifting base 408 and the cylinder base 406 are slidably mounted, the sixth stepping motor 409 is fixedly mounted on the cylinder lifting base 408, the inner rotating block 411 and the cylinder lifting base 408 are rotatably mounted through the rotating shaft, the second transmission belt 410 is wound on the outer sides of the sixth stepping motor 409 and the rotating shaft, a seventh stepping motor 412 is fixedly arranged on an inner rotating block 411, an outer rotating block 413 is fixedly arranged on the seventh stepping motor 412, an eighth stepping motor 414 is fixedly arranged on an outer fixed block 417, a ninth stepping motor 415 is fixedly arranged on the outer fixed block 417, the outer fixed block 417 and the outer rotating block 413 are rotatably arranged through a rotating shaft, a third driving belt 416 is wound outside the eighth stepping motor 414 and the rotating shaft, one end of a telescopic screw rod 418 is fixedly arranged on the ninth stepping motor 415, the other end of the telescopic screw rod is rotatably arranged on the outer fixed block 417, an inner telescopic block 419 and the telescopic screw rod 418 adopt screw thread transmission, the inner telescopic block 419 and the outer fixed block 417 are slidably arranged, a tenth stepping motor 420 is fixedly arranged on an inner telescopic block 419, a brush seat 421 is fixedly arranged on the tenth stepping motor 420, a third electric cylinder 422 is fixedly arranged on the brush seat 421, a squeezing block 425 is fixedly arranged at the top of the third electric cylinder 422, a maintenance oil tank 423 is arranged on the, the oil outlet 424 is fixedly installed on the maintenance oil tank 423, and the rolling brush 426 is rotatably installed on the brush seat 421.
An annular rotating block 501 of the upper dust suction part 5 is slidably mounted with an annular guide rail 107, an eleventh stepping motor 502 is fixedly mounted on the annular rotating block 501, a sixth gear 503 is fixedly mounted on the eleventh stepping motor 502, the sixth gear 503 is meshed with the first gear 105, a twelfth stepping motor 504 is fixedly mounted on the annular rotating block 501, a fixed telescopic frame 506 is rotatably mounted with the annular rotating block 501 through a rotating shaft, a fourth transmission belt 505 is wound outside the twelfth stepping motor 504 and the rotating shaft, a thirteenth stepping motor 507 is fixedly mounted on the fixed telescopic frame 506, two ends of a dust suction guide rail 508 are fixedly mounted on the fixed telescopic frame 506, one end of the dust suction screw rod is fixedly mounted on the thirteenth stepping motor 507, the other end of the dust suction screw rod 509 is rotatably mounted on the fixed telescopic frame 506, a telescopic frame 512 and a telescopic screw rod 509 adopt screw rod transmission, and the telescopic frame 512 and the telescopic guide rail 508 are slidably mounted, the dust box 510 is fixedly arranged at the bottom of the telescopic frame 512, the fourteenth stepping motor 513 is fixedly arranged on the telescopic frame 512, the annular block and the telescopic frame 512 are rotatably arranged through a rotating shaft, a fifth transmission belt 514 is wound outside the fourteenth stepping motor 513 and the rotating shaft, a fifteenth stepping motor 516 is fixedly arranged on the annular block, the annular block and the conversion block 515 are rotatably arranged through the rotating shaft, a sixth transmission belt 517 is wound outside the fifteenth stepping motor 516 and the rotating shaft, the conversion block 515 and the dust collection shell are rotatably arranged through the rotating shaft 521, a seventh gear 518 is fixedly arranged on the rotating shaft, a sixteenth stepping motor 520 is fixedly arranged on the dust collection shell 521, an eighth gear 519 is fixedly arranged on the sixteenth stepping motor 520, the seventh gear 518 is meshed with the eighth gear 519, the dust collection roller is rotatably arranged on the dust collection shell 521, the rotating motor 523 is fixedly arranged on the dust collection shell 521, and the dust collection fan blades 524 are fixedly arranged on, one end of the dust suction pipe 511 is fixedly installed on the dust suction housing 521, and the other end is fixedly installed on the dust box 510.
The cleaning brush 601 of the cleaning part 6 is fixedly arranged on a brush fixing frame 602, the brush fixing frame 602 is fixedly arranged on a seventeenth stepping motor 604, the seventeenth stepping motor 604 is fixedly arranged on a parallel connection tail end 603, a cylindrical shaft 606 and the parallel connection tail end 603 are rotatably arranged through an eighteenth stepping motor 605, the eighteenth stepping motor 605 is fixedly arranged on the parallel connection tail end 603, a cylindrical shaft 606 and a connecting rod are rotatably arranged through a rotating shaft, a first bevel gear 607 is fixedly arranged on the rotating shaft, a second bevel gear 608 is fixedly arranged on a gear connecting shaft 609, the gear connecting shaft 609 is fixedly arranged on a first bidirectional asynchronous motor 610, the first bevel gear 607 is meshed with the second bevel gear 608, the first bidirectional asynchronous motor 610 is fixedly arranged on the connecting rod, a third bevel gear 611 is fixedly arranged on the gear connecting shaft 609, a parallel seat 613 and the connecting rod are rotatably arranged through the rotating shaft, a fourth bevel gear 612 is, a third bevel gear 611 is engaged with a fourth bevel gear 612, a parallel seat 613 and a connecting rod 619 are rotatably mounted through a rotating shaft, a fifth bevel gear 614 is fixedly mounted on the rotating shaft, a second bidirectional asynchronous motor 616 is fixedly mounted on the connecting rod 619, a sixth bevel gear 615 and a seventh bevel gear 617 are fixedly mounted on the second bidirectional asynchronous motor 616, the fifth bevel gear 614 is engaged with the sixth bevel gear 615, the connecting rod 619 and a circular traveling frame 622 are rotatably mounted through the rotating shaft, an eighth bevel gear 618 is fixedly mounted on the rotating shaft, the seventh bevel gear 617 is engaged with the eighth bevel gear 618, a nineteenth step motor 621 is fixedly mounted on the circular traveling frame 622, a ninth gear 620 is fixedly mounted on the nineteenth step motor 621, the circular traveling frame 622 is slidably mounted with a circular guide rail 107, the ninth gear 620 is engaged with the first gear 105, a connecting rod of a cleaning part 6 mounted on the connecting part 2 is rotatably mounted with a lifting rotary seat 623 through the rotating shaft, an eighth bevel gear 618 is fixedly installed on the rotating shaft, a twentieth stepping motor 624 is fixedly installed on the lifting rotary seat 623, a tenth gear 625 is fixedly installed on the twentieth stepping motor 624, and the tenth gear 625 is meshed with the second gear 202.
A twentieth stepping motor 702 of the lower dust suction part 7 is fixedly installed on the upper and lower rotating blocks 701, an eleventh gear 703 is fixedly installed on the twentieth stepping motor 702, the eleventh gear 703 is engaged with the second gear 202, a connecting arm 706 is rotatably installed with the upper and lower rotating blocks 701 through a rotating shaft, a ninth bevel gear 704 is fixedly installed on the rotating shaft, a third bidirectional asynchronous motor 707 is fixedly installed on the connecting arm 706, a tenth bevel gear 705 and an eleventh bevel gear 708 are fixedly installed on the third bidirectional asynchronous motor 707, the ninth bevel gear 704 is engaged with the tenth bevel gear 705, a fixed rail bracket 710 is rotatably installed with the connecting arm 706 through a rotating shaft, a twelfth bevel gear 709 is fixedly installed on the rotating shaft, the eleventh bevel gear 708 is engaged with the twelfth bevel gear 709, a second twentieth stepping motor 712 is fixedly installed on the fixed rail bracket 710, one end of a descending screw rod 711 is fixedly installed on the twentieth stepping, the other end of the lifting block 713 and the lifting screw 711 are in threaded transmission, the lifting block 713 and the fixed guide rail frame 710 are in sliding installation, a twenty-third stepping motor 714 is fixedly installed on the lifting block 713, a dust collection shell 716 and the lifting block 713 are rotatably installed through a rotating shaft, a seventh transmission belt 715 is wound on the outer side of the rotating shaft and the twenty-third stepping motor 714, a dust collection cover 717 is fixedly installed on the dust collection shell 716, a dust collection nozzle 718 is fixedly installed on the dust collection shell 717, a twenty-fourth stepping motor 719 is fixedly installed on the dust collection shell 716, and a dust collection fan 720 is fixedly installed on the twenty-fourth stepping motor 719.
The utility model discloses a theory of operation: when the utility model is used, the third stepping motor 308 of the walking part 3 rotates to drive the walking caterpillar 309 to rotate, and the robot runs to near the sofa 8 by matching with the telescopic control of the first electric cylinder 306, firstly the second stepping motor 304 rotates, the twentieth stepping motor 702 rotates, the third bidirectional asynchronous motor 707 rotates, the twentieth stepping motor 712 rotates, the twenty third stepping motor 714 rotates to control the lower dust suction part 7 to move along the lower part of the sofa 8, meanwhile, the twenty fourth stepping motor 719 rotates to control the dust suction fan 720 to rotate all the time to suck dust into the dust suction shell 716, then the seventeenth stepping motor 604 of the cleaning part 6 connected on the connecting part 2 rotates, the eighteenth stepping motor 605 rotates, the first bidirectional asynchronous motor 610 rotates, the second bidirectional asynchronous motor 616 rotates, the twentieth stepping motor 624 rotates to control the cleaning brush 601 to clean the surface of the lower part of the sofa 8, then the second stepping motor 304 rotates to adjust the upper dust-collecting part 5 to a proper angle, then the first stepping motor 104 rotates to control the lifting ring seat 106 to lift, the eleventh stepping motor 502 of the upper dust-collecting part 5 rotates, the twelfth stepping motor 504 rotates, the thirteenth stepping motor 507 rotates, the fourteenth stepping motor 513 rotates, the fifteenth stepping motor 516 rotates, the sixteenth stepping motor 520 rotates to control the dust-collecting roller 522 to reach the position near the sofa 8, then the rotating motor 523 rotates to control the dust-collecting fan 524 to rotate to collect dust into the dust box 510, after dust collection is completed, the second stepping motor 304 rotates to adjust the cleaning part 6 to a proper angle, then the first stepping motor 104 rotates to control the lifting ring seat 106 to lift, the seventeenth stepping motor 604 rotates, the eighteenth stepping motor 605 rotates, the first bidirectional asynchronous motor 610 rotates, the second bidirectional asynchronous motor 616 rotates, The twentieth step motor 624 rotates to control the cleaning brush 601 to clean the sofa 8, after the cleaning is completed, the second step motor 304 rotates to adjust the cleaning part 6 to a proper angle, then the first step motor 104 rotates to control the lifting ring seat 106 to lift, the fourth step motor 402 rotates, the fifth step motor 404 rotates, the second electric cylinder 407 stretches, the sixth step motor 409 rotates, the seventh step motor 412 rotates, the eighth step motor 414 rotates, the ninth step motor 415 rotates, the tenth step motor 420 rotates to control the rolling brush 426 to reach the vicinity of the sofa 8, then the third electric cylinder 422 stretches to extrude the maintenance oil, and the oil is uniformly smeared on the sofa 8 through the rolling brush 426.