Safety movable sealing mechanism of cleaning tank and cleaning machine adopting sealing mechanism

Abstract

The invention discloses a safe movable sealing mechanism of a cleaning tank and a cleaning machine adopting the sealing mechanism, and relates to the technical field of cleaning machines. The cleaning tank safe movable sealing mechanism comprises a transverse rotating shaft hinged to the upper portion of the rear side edge of a tank opening of the cleaning tank, the transverse rotating shaft is connected with the rear end of the cleaning tank cover, and one end of the transverse rotating shaft is fixed to a rotating rod perpendicular to the transverse rotating shaft. The end, away from the transverse rotating shaft, of the rotating rod is hinged to a driven connecting rod, the end, away from the rotating rod, of the driven connecting rod is hinged to a driving connecting rod, and the end, away from the driven connecting rod, of the driving connecting rod is fixedly connected with a power output shaft of a transversely-arranged driving motor. The cleaning machine comprises a cleaning tank group, a longitudinal guide rail group, a cleaning basket transfer device and a protection chamber, the cleaning tank group comprises a plurality of longitudinally arranged cleaning tanks, and each cleaning tank is provided with a cleaning tank safety movable sealing mechanism; the safe movable sealing mechanism of the cleaning tank can solve the problem that in the prior art, sealing of the cleaning tank is not safe.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning machines, in particular to a safe movable sealing mechanism for a cleaning tank and a cleaning machine using the sealing mechanism. Background Art

[0002] Semiconductor electronic components, such as round wafer packaging processes, require wafers to go through a cleaning process. Before cleaning, the basket loaded with wafers is transported to the cleaning tank by a crane. When the wafers are cleaned in the cleaning tank, the cleaning tank must be closed to ensure a clean and contaminated working environment. After cleaning, the cleaning fluid in the cleaning tank will be replaced and opened so that the next basket can enter smoothly.

[0003] In the prior art, direct motor connection or chain drive is often used. These two transmission methods require a large amount of equipment space and have poor safety. The detection switch may fail, causing the switch cover to exceed the travel limit, resulting in the cover and the cleaning tank either not fitting tightly or colliding, damaging the transmission structure or the cover plate or the cleaning slot. There are also other safety hazards, such as the cylinder may cause the switch speed to be uncontrollable or fail to open directly due to unstable air pressure. Summary of the invention

[0004] The object of the present invention is to provide a safe movable sealing mechanism for a cleaning tank and a cleaning machine using the sealing mechanism, which has the advantages of safe use and small size.

[0005] The technical solution adopted by the present invention is as follows.

[0006] A cleaning tank safety movable sealing mechanism, characterized in that: it comprises a transverse rotating shaft hinged above the rear side edge of the notch of the cleaning tank, the transverse rotating shaft is connected to the rear end of the cleaning tank cover, and the transverse rotating shaft is connected to the transverse rotating shaft driving device; The transverse rotating shaft driving device includes a driving motor, a rotating rod, an active connecting rod, and a driven connecting rod which are connected to the rear of the cleaning tank and located below the transverse rotating shaft; one end of the transverse rotating shaft is fixed to the rotating rod which is perpendicular to the transverse rotating shaft; the end of the rotating rod away from the transverse rotating shaft is hinged to the driven connecting rod, the end of the driven connecting rod away from the rotating rod is hinged to the active connecting rod, and the end of the active connecting rod away from the driven connecting rod is fixedly connected to the power output shaft of the transversely arranged driving motor; the active connecting rod, the driven connecting rod, and the rotating rod are all perpendicular to the power output shaft of the driving motor; the length of the active connecting rod is less than the length of the driven connecting rod; the length of the driven connecting rod is less than the length of the rotating rod.

[0007] The beneficial effects of the present invention are: the motor connecting rod structure is adopted, and since the length of the active connecting rod is shorter than the length of the driven connecting rod and the length of the active connecting rod is shorter than the length of the driven connecting rod, the ratio is fixed, thereby reducing the requirement for the driving motor torque, and a fixed switching angle can be achieved. In any case, the cleaning slot and the cleaning slot cover will not be damaged due to overtravel, and the driving motor will not be damaged. The device has a simple structure and a small size.

[0008] As a preferred technical solution, the driven connecting rod is connected to the active connecting rod through a first detachable connecting hinge, and the driven connecting rod is connected to the rotating rod through a second detachable connecting hinge. With this technical solution, the opening and closing degree of the cleaning tank cover can be controlled by replacing the moving connecting rod, the rotating rod, and the active connecting rod of different lengths.

[0009] As a preferred technical solution, the length ratio of the driven connecting rod, the active connecting rod and the rotating rod is 1:1.9-2.1:2.8-3.2.

[0010] As a preferred technical solution, the left end of the horizontal rotating shaft is connected to a rotating rod perpendicular to the horizontal rotating shaft, and the driving motor is installed at the left end of the rear side of the cleaning tank. or, The right end of the transverse rotating shaft is connected to a rotating rod which is perpendicular to the transverse rotating shaft, and the driving motor is installed at the right end of the rear side surface of the cleaning tank.

[0011] As a preferred technical solution, a bearing is provided on each of the left and right sides of the rear end of the notch on the top surface of the cleaning tank, and the transverse rotating shaft is installed on the two bearings.

[0012] As a preferred technical solution, a sealing lip adapted to the notch is provided on the front side of the cleaning tank cover; and a plurality of protective pads are provided on the rear side of the cleaning tank cover.

[0013] The cleaning machine comprises a cleaning tank group, a longitudinal guide rail group, a cleaning basket transfer device, and a protection room. The cleaning tank group comprises a plurality of cleaning tanks arranged longitudinally, each cleaning tank being equipped with any of the above-mentioned cleaning tank safety movable sealing mechanisms; the longitudinal guide rail group is located above the cleaning tank group; and the cleaning basket transfer device is provided on the longitudinal guide rail group; There is a movable door on the left wall of the protection room, and a transfer table is provided at the left end of the cleaning tank group. or, There is a movable door on the right wall of the protection room, and a transfer table is provided at the right end of the cleaning tank group. or, The right wall and the left wall of the protection room are both provided with movable doors, and the left end and the right end of the cleaning tank group are both provided with transfer tables; The transfer table is provided with a transfer trough for a cleaning basket; The top of each cleaning tank, the top of each transfer platform, and the longitudinal guide rail group are all located in the protection room; each transverse shaft passes through the protection room; the transverse shaft drive device is located outside the protection room; and there are exhaust holes on the top plate of the protection room. With this technical solution, the acid mist in the protection room can be extracted through the exhaust holes for treatment. At the same time, the active connecting rod, the driven connecting rod, the rotating rod, the driving motor, and the two bearings are all located outside the acid mist collection room to prevent the acid mist from corroding the motor.

[0014] As an optimal technical solution, each cleaning tank is connected to a cleaning liquid supply device arranged outside the protection room through a cleaning liquid inlet pipe, and the cleaning liquid inlet pipe passes through the protection room; each cleaning tank is connected to a cleaning liquid collection device arranged outside the protection room through a cleaning liquid outlet pipe, and the cleaning liquid outlet pipe passes through the protection room.

[0015] As an optimal technical solution, a plurality of long longitudinal grooves opening backwards are provided on the rear side wall of the protection room, and the driving motors of each transverse shaft driving device are fixed in the long longitudinal groove closest to it through the connecting platform; a plurality of glass windows are provided on the front side wall of the protection room.

[0016] As a preferred technical solution, the cleaning basket transfer device includes a slider, a lifting rod, a slider driving device, and a lifting rod driving device. The slider is provided with a lifting rod, a slider driving device, and a lifting rod driving device; the slider is installed on a longitudinal guide rail group, and the lifting rod is connected to the lifting rod driving device; the bottom end of the lifting rod is connected to a plurality of hooks for hanging the cleaning basket; A lifting rod bracket is provided on the slider, a lifting rod through hole is vertically provided in the middle of the slider, a lifting rod is provided on the lifting rod bracket, and the lifting rod passes through the lifting rod through hole; A longitudinal rack is arranged on the longitudinal guide rail group, and the slider driving device comprises a slider driving motor. A driving gear meshing with the longitudinal rack is arranged on the power output shaft of the slider driving motor.

[0017] The lifting rod driving device comprises two mutually parallel lead screws vertically arranged on the lifting rod bracket; the two lead screw ends are connected to the lead screw driving motor, a lead screw slide is arranged on the lead screw, and the lead screw slide is connected to the lifting rod.

[0018] The bottom end of the lifting rod is connected with a flower basket lifting frame, and the flower basket lifting frame is provided with a plurality of hooks for hanging the cleaning basket. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a preferred embodiment of the safe movable sealing mechanism of the cleaning tank of the present invention.

[0020] Figure 2 yes Figure 1 A partial enlarged view of part A.

[0021] Figure 3 yes Figure 1 A partial enlarged view of part B.

[0022] Figure 4 yes Figure 1 A state diagram of the cleaning tank safety movable sealing mechanism is shown.

[0023] Figure 5 yes Figure 4 A partial enlarged view of part C.

[0024] Figure 6 It is a schematic diagram of a preferred embodiment of a cleaning machine.

[0025] Figure 7 yes Figure 6 Rear view of the cleaning machine shown.

[0026] Figure 8 yes Figure 7 A partial enlarged view of part D.

[0027] Fig. 9 yes Figure 6 The schematic diagram of the front side wall, left side wall, right side wall and top plate of the hidden protection room of the cleaning machine is shown.

[0028] Fig.10 yes Fig. 9 A partial enlarged view of part E.

[0029] Fig.11 yes Fig.10 A partial enlarged view of part F.

[0030] Fig.12 yes Fig.10 A partial enlarged view of part G.

[0031] Fig.13 yes Figure 6 Schematic diagram of the cleaning machine shown behind the hidden protective chamber.

[0032] Fig.14 yes Fig.13 A partial enlarged view of part H.

[0033] Fig.15 yes Figure 6 A state diagram of a cleaning machine is shown.

[0034] Fig.16 It is a structural schematic diagram of another preferred embodiment of the cleaning machine.

[0035] Fig.17 It is a structural schematic diagram of another preferred embodiment of the cleaning machine.

[0036] Fig.18 It is a schematic diagram of another embodiment of the safe movable sealing mechanism of the cleaning tank of the present invention.

[0037] Fig.19 yes Fig.18 A partial enlarged view of part I.

[0038] Wherein: cleaning tank-1; slot-11; cleaning tank cover-12; protective pad-13; sealing lip-14; cleaning liquid inlet pipe-15; cleaning liquid outlet pipe-16; connecting platform-17; Horizontal rotating shaft-2; bearing-21; rotating shaft through hole-22; Driving motor-3; active connecting rod-32; driven connecting rod-33; power output shaft-34; first detachable connecting hinge-35; second detachable connecting hinge-36; Transfer station-4; Longitudinal guide rail set - 5; Washing basket transfer tank-6; Protection room-7; rear side wall of protection room-71; long longitudinal groove-72; left side wall of protection room-73; right side wall of protection room-74; top plate of protection room-75; front side wall of protection room-76; movable door-77; exhaust hole-78; glass window-79; Washing basket transfer device-8. DETAILED DESCRIPTION

[0039] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0040] Example 1. Figure 1-5 As shown, a safe movable sealing mechanism for a cleaning tank 1 comprises a transverse rotating shaft 2 hinged on the upper rear side of a notch 11 of the cleaning tank 1, the transverse rotating shaft 2 being connected to the rear end of a cleaning tank cover 12, one end of the transverse rotating shaft 2 being fixed to a rotating rod 31 perpendicular to the transverse rotating shaft 2; the end of the rotating rod 31 away from the transverse rotating shaft 2 being hinged to a driven connecting rod 33, and the end of the driven connecting rod 33 away from the rotating rod 31 being hinged to an active connecting rod 32. The end of the active connecting rod 32 away from the driven connecting rod 33 is fixedly connected to a power output shaft 34 of a transversely arranged driving motor 3; the active connecting rod 32, the driven connecting rod 33 and the rotating rod 31 are all perpendicular to the power output shaft 34 of the driving motor 3; the driving motor 3 is located at the rear of the cleaning tank 1 and below the transverse rotating shaft 2; the length of the active connecting rod 32 is less than the length of the driven connecting rod 33; the length of the driven connecting rod 33 is less than the length of the rotating rod 31. The length ratio of the driven connecting rod 33, the active connecting rod 32 and the rotating rod 31 is 1:1.9:2.8.

[0041] The left end of the transverse rotating shaft 2 is connected to a rotating rod 31 perpendicular to the transverse rotating shaft 2, and the driving motor 3 is installed on the left side of the cleaning tank 1 through a connecting platform 8. Of course, the right end of the transverse rotating shaft can also be connected to a rotating rod perpendicular to the transverse rotating shaft, and the driving motor can be installed on the right side of the cleaning tank.

[0042] A bearing 21 is respectively arranged on the left and right sides of the rear end of the notch 11 on the top surface of the cleaning tank 1 , and the transverse rotating shaft 2 is mounted on the two bearings 21 .

[0043] The driven connecting rod 33 is connected to the active connecting rod 32 via a first detachable connecting hinge 35, and the driven connecting rod 33 is connected to the rotating rod 31 via a second detachable connecting hinge 36. With this technical solution, the driven connecting rod 33 of different lengths can be replaced, thereby adjusting the length ratio between the active connecting rod 32 and the driven connecting rod 33, and adjusting the opening angle of the cleaning tank cover 12.

[0044] The motor connecting rod structure is adopted. Since the length of the active connecting rod 32 is shorter than the length of the driven connecting rod 33 and the ratio of the length of the active connecting rod 32 to the length of the driven connecting rod 33 is fixed, the torque requirement of the driving motor 3 is reduced, and a fixed switching angle can be achieved. In any case, the cleaning tank 1 and the cleaning tank cover 12 will not be damaged due to overtravel, and the driving motor 3 will not be damaged. The device has a simple structure and a small size.

[0045] Example 2. Figure 6-15 As shown, the cleaning machine includes a cleaning tank group 1, a longitudinal guide rail group 5, a cleaning basket transfer device 8, and a protective chamber 7. The cleaning tank group 1 includes 3 cleaning tanks 1 arranged longitudinally, and each cleaning tank 1 is installed with a cleaning tank safety movable sealing mechanism as described in Example 1; the longitudinal guide rail group 5 is located above the cleaning tank group 1; and the cleaning basket transfer device 8 is provided on the longitudinal guide rail group 5.

[0046] A movable door 77 is provided on the left side wall 73 of the protection chamber, and a transfer platform 4 is provided at the left end of the cleaning tank 1 group. The movable door 77 is a sliding door arranged vertically.

[0047] A cleaning basket transfer tank 6 is provided on the transfer platform 4; The top of each cleaning tank 1, the top of each transfer platform 4, and the longitudinal guide rail group 5 are all located in the protection room 7; each transverse rotating shaft 2 passes through the protection room 7; the transverse rotating shaft driving device is located outside the protection room 7; and an exhaust hole 78 is provided on the top plate 75 of the protection room.

[0048] Each cleaning tank 1 is connected to a cleaning liquid supply device arranged outside the protection chamber 7 through a cleaning liquid inlet pipe 15, and the cleaning liquid inlet pipe 15 passes through the protection chamber 7; each cleaning tank 1 is connected to a cleaning liquid collecting device arranged outside the protection chamber 7 through a cleaning liquid outlet pipe 16, and the cleaning liquid outlet pipe 16 passes through the protection chamber 7.

[0049] The rear side wall 71 of the protection room is provided with three long longitudinal grooves 72 opening backwards, and the driving motor 3 of each transverse shaft driving device is fixed in the long longitudinal groove 72 closest thereto through the connecting platform 17; two glass windows 79 are provided on the front side wall 76 of the protection room.

[0050] The cleaning basket transfer device 8 includes a slider 81, a lifting rod 82, a slider driving device 83, and a lifting rod driving device 84. The slider 81 is provided with a lifting rod 82, a slider driving device 83, and a lifting rod driving device 84. The slider 81 is installed on the longitudinal guide rail group 5, and the lifting rod 82 is connected to the lifting rod driving device 84. The bottom end of the lifting rod 82 is connected to a plurality of hooks 85 for hanging a cleaning basket 86. A lifting rod bracket 87 is provided on the slider 81, a lifting rod through hole 88 is vertically provided in the middle of the slider 81, a lifting rod 82 is provided on the lifting rod bracket 87, and the lifting rod passes through the lifting rod through hole 88; A longitudinal rack 89 is provided on the longitudinal guide rail group 8 , and the slider driving device 83 includes a slider driving motor. A driving gear meshing with the longitudinal rack 89 is provided on the power output shaft of the slider driving motor.

[0051] The lifting rod driving device includes two mutually parallel lead screws 810 vertically arranged on the lifting rod bracket 87; the two ends of the lead screws 810 are connected to the lead screw driving motor 811, and a lead screw slide 812 is provided on the lead screw 810, and the lead screw slide 812 is connected to the lifting rod 82.

[0052] The bottom end of the lifting rod 82 is connected to a flower basket lifting frame 813 , and the flower basket lifting frame 813 is provided with a plurality of hooks 85 for hanging a cleaning basket 86 .

[0053] like Figure 6 As shown, the movable door 77 is in an open state, and the flower basket carrier 813 can be placed in the cleaning basket transfer slot 6, or the flower basket carrier 813 can be taken out of the cleaning basket transfer slot 6.

[0054] like Fig.15 Shown, the movable door 77 is in a closed state. At this time, the cleaning basket transfer device 8 can put the flower basket carrier 813 on the cleaning basket transfer tank 6 into a cleaning tank for cleaning.

[0055] Example 3. Fig.16 As shown, the difference between this embodiment and embodiment 2 is that a movable door 77 is provided on the right side wall 74 of the protection chamber, and a transfer platform 4 is provided at the right end of the cleaning tank group 1.

[0056] Example 4. Fig.17 As shown, the difference between this embodiment and embodiment 2 is that a movable door 77 is provided on the right side wall 74 and the left side wall 73 of the protection chamber, and a transfer platform 4 is provided on the left end of the cleaning tank group 1 and the right end of the cleaning tank group 1.

[0057] Example 5. Figure 18-19 As shown, the difference between this embodiment and embodiment 1 is that a sealing lip 14 adapted to the notch is provided on the front side of the cleaning tank cover 12. The length ratio of the driven connecting rod, the active connecting rod and the rotating rod is 1:2.1:3.2.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cleaning tank safety movable sealing mechanism, characterized in that: It comprises a transverse rotating shaft (2) hingedly connected to the upper rear side of the notch (11) of the cleaning tank (1), the transverse rotating shaft (2) being connected to the rear end of the cleaning tank cover (12), and the transverse rotating shaft (2) being connected to a transverse rotating shaft driving device; The transverse rotating shaft driving device comprises a driving motor (3) connected to the rear of the cleaning tank (1) and located below the transverse rotating shaft (2), a rotating rod (31), an active connecting rod (32), and a driven connecting rod (33); one end of the transverse rotating shaft (2) is fixed to the rotating rod (31) which is perpendicular to the transverse rotating shaft (2); the end of the rotating rod (31) away from the transverse rotating shaft (2) is hinged to the driven connecting rod (33), the end of the driven connecting rod (33) away from the rotating rod (31) is hinged to the active connecting rod (32), and the end of the active connecting rod (32) away from the driven connecting rod (33) is fixedly connected to a power output shaft (34) of a transversely arranged driving motor (3); the active connecting rod (32), the driven connecting rod (33), and the rotating rod (31) are all perpendicular to the power output shaft (34) of the driving motor (3); the length of the active connecting rod (32) is less than the length of the driven connecting rod (33); The length of the driven connecting rod (33) is smaller than the length of the rotating rod (31).

2. The cleaning tank safety movable sealing mechanism according to claim 1, characterized in that: The driven connecting rod (33) is connected to the driving connecting rod (32) via a first detachable connecting hinge (35), and the driven connecting rod (33) is connected to the rotating rod (31) via a second detachable connecting hinge (36).

3. The cleaning tank safety movable sealing mechanism according to claim 1, characterized in that: The length ratio of the driven connecting rod (33), the active connecting rod (32) and the rotating rod (31) is 1:1.9-2.1:2.8-3.

2.

4. The cleaning tank safety movable sealing mechanism according to claim 1, characterized in that: The left end of the transverse rotating shaft (2) is connected to a rotating rod (31) perpendicular to the transverse rotating shaft (2). The driving motor (3) is installed at the left end of the rear side of the cleaning tank (1). or, The right end of the transverse rotating shaft (2) is connected to a rotating rod (31) perpendicular to the transverse rotating shaft (2), and the driving motor (3) is installed at the right end of the rear side of the cleaning tank (1).

5. The cleaning tank safety movable sealing mechanism according to claim 1, characterized in that: A bearing (21) is provided on the left and right sides of the rear end of the notch (11) on the top surface of the cleaning tank (1), and the transverse rotating shaft (2) is mounted on the two bearings (21).

6. The cleaning tank safety movable sealing mechanism according to claim 1, characterized in that: A sealing lip (14) adapted to the notch is provided on the front side of the cleaning tank cover (12); and a plurality of protective pads (13) are provided on the rear side of the cleaning tank cover (12).

7. A cleaning machine, characterized in that: The cleaning tank (1) group comprises a cleaning tank (1) group, a longitudinal guide rail group (5), a cleaning basket transfer device (8), and a protection chamber (7); the cleaning tank (1) group comprises a plurality of cleaning tanks (1) arranged longitudinally, each cleaning tank (1) being provided with a cleaning tank safety movable sealing mechanism as claimed in any one of claims 1 to 6; the longitudinal guide rail group (5) being located above the cleaning tank (1) group; and the cleaning basket transfer device (8) being provided on the longitudinal guide rail group (5); A movable door (77) is provided on the left side wall (73) of the protection chamber, and a transfer platform (4) is provided at the left end of the cleaning tank (1) group. or, A movable door (77) is provided on the right side wall (74) of the protection room, and a transfer platform (4) is provided at the right end of the cleaning tank (1) group. or, The right side wall (74) and the left side wall (73) of the protection room are both provided with movable doors (77), and the left end of the cleaning tank (1) group and the right end of the cleaning tank (1) group are both provided with a transfer platform (4); A cleaning basket transfer trough (6) is provided on the transfer platform (4); The top of each cleaning tank (1), the top of each transfer platform (4), and the longitudinal guide rail group (5) are all located in the protection room (7); each transverse rotating shaft (2) passes through the protection room (7); the transverse rotating shaft driving device is located outside the protection room (7); and the top plate (75) of the protection room is provided with an exhaust hole (78).

8. The cleaning machine according to claim 7, characterized in that: Each cleaning tank (1) is connected to a cleaning liquid supply device arranged outside the protection chamber (7) via a cleaning liquid inlet pipe (15), and the cleaning liquid inlet pipe (15) passes through the protection chamber (7); each cleaning tank (1) is connected to a cleaning liquid collection device arranged outside the protection chamber (7) via a cleaning liquid outlet pipe (16), and the cleaning liquid outlet pipe (16) passes through the protection chamber (7).

9. The cleaning machine according to claim 7, characterized in that: A plurality of longitudinal grooves (72) opening backward are provided on the rear side wall (71) of the protection room, and the driving motors (3) of the transverse shaft driving devices are fixed in the longitudinal grooves (72) closest to them through the connecting platform (17); and a plurality of glass windows (79) are provided on the front side wall (76) of the protection room.

10. The cleaning machine according to claim 7, characterized in that: The cleaning basket transfer device (8) comprises a slider (81), a lifting rod (82), a slider driving device (83), and a lifting rod driving device (84); the slider (81) is provided with a lifting rod (82), a slider driving device (83), and a lifting rod driving device (84); the slider (81) is mounted on the longitudinal guide rail group (5); the lifting rod (82) is connected to the lifting rod driving device (84); the bottom end of the lifting rod (82) is connected to a plurality of hooks (85) for hanging the cleaning basket (86); A lifting rod bracket (87) is provided on the slider (81), a lifting rod through hole (88) is vertically provided in the middle of the slider (81), a lifting rod (82) is provided on the lifting rod bracket (87), and the lifting rod passes through the lifting rod through hole (88); A longitudinal rack (89) is provided on the longitudinal guide rail assembly (8), and the slider driving device (83) comprises a slider driving motor, and a driving gear meshing with the longitudinal rack (89) is provided on the power output shaft of the slider driving motor; The lifting rod driving device comprises two mutually parallel lead screws (810) vertically arranged on the lifting rod bracket (87); the ends of the two lead screws (810) are connected to the lead screw driving motor (811); a lead screw slide plate (812) is provided on the lead screw (810); and the lead screw slide plate (812) is connected to the lifting rod (82); The bottom end of the lifting rod (82) is connected to a flower basket lifting frame (813), and the flower basket lifting frame (813) is provided with a plurality of hooks (85) for hanging the cleaning basket (86).

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