Automatic cleaning device

Abstract

An automatic cleaning device, comprising: a moving platform configured to automatically move on an operation surface; a cleaning module which is provided on the moving platform and comprises a wet-type cleaning module configured to clean at least a part of the operation surface in a wet-type cleaning mode and a dry-type cleaning module configured to clean at least a part of the operation surface in a dry-type cleaning mode; and a floating lifting/lowering structure connected to the dry-type cleaning module and configured to enable the dry-type cleaning module to passively move up and down relative to the moving platform.

1 . An automatic cleaning apparatus, characterized by comprising:
 a mobile platform configured to move automatically on an operating surface; and   a cleaning module disposed on the mobile platform, and comprising:
 a wet cleaning module configured to clean at least a part of the operating surface by wet cleaning; 
 a dry cleaning module configured to clean at least a part of the operating surface by dry cleaning; and 
 a floating lifting and lowering structure connected to the dry cleaning module and configured to enable the dry cleaning module to passively move vertically relative to the mobile platform. 
   
     
     
         2 . The automatic cleaning apparatus according to  claim 1 , characterized in that, the floating lifting and lowering structure is a parallelogram four-link lifting and lowering structure configured to switch the dry cleaning module between a lifting state and a lowering state under action of an external force. 
     
     
         3 . The automatic cleaning apparatus according to  claim 2 , characterized in that, the floating lifting and lowering structure comprises:
 a first fixed bracket fixedly connected to the mobile platform;   a second fixed bracket fixedly connected to the dry cleaning module; and   a connecting rod pair, having one ends rotatably connected to the first fixed bracket through movable studs, and the other ends rotatably connected to the second fixed bracket through movable studs.   
     
     
         4 . The automatic cleaning apparatus according to  claim 3 , characterized in that, the connecting rod pair comprises:
 a first connecting rod pair, having one ends rotatably connected to a first end of the first fixed bracket through movable studs, and the other ends rotatably connected to a first end of the second fixed bracket through movable studs; and   a second connecting rod pair disposed opposite to the first connecting rod pair, and having one ends rotatably connected to a second end of the first fixed bracket through movable studs, and the other ends rotatably connected to a second end of the second fixed bracket through movable studs.   
     
     
         5 . The automatic cleaning apparatus according to  claim 4 , characterized in that,
 the first connecting rod pair comprises a first connecting rod and a second connecting rod arranged in parallel, wherein one end of each of the first connecting rod and the second connecting rod is provided with a first shaft hole, and the other end of each of the first connecting rod and the second connecting rod is provided with a second shaft hole; and   the movable studs rotatably fix the first connecting rod and the second connecting rod to the first end of the first fixed bracket through the first shaft holes, and the movable studs rotatably fix the first connecting rod and the second connecting rod to the first end of the second fixed bracket through the second shaft holes.   
     
     
         6 . The automatic cleaning apparatus according to  claim 5 , characterized in that,
 the second connecting rod pair comprises a third connecting rod and a fourth connecting rod arranged in parallel, wherein one end of each of the third connecting rod and the fourth connecting rod is provided with a third shaft hole, and the other end of each of the third connecting rod and the fourth connecting rod is provided with a fourth shaft hole; and   the movable studs rotatably fix the third connecting rod and the fourth connecting rod to the second end of the first fixed bracket through the third shaft holes, and the movable studs rotatably fix the third connecting rod and the fourth connecting rod to the second end of the second fixed bracket through the fourth shaft holes.   
     
     
         7 . The automatic cleaning apparatus according to  claim 6 , characterized in that, the first fixed bracket comprises:
 a first fixed portion protruding from the first fixed bracket and extending laterally outward, for carrying the first connecting rod pair.   
     
     
         8 . The automatic cleaning apparatus according to  claim 7 , characterized in that, the first fixed bracket further comprises:
 a second fixed portion disposed symmetrically with the first fixed portion, for carrying the second connecting rod pair.   
     
     
         9 . The automatic cleaning apparatus according to  claim 5 , characterized in that, the floating lifting and lowering structure further comprises:
 a flexible connecting portion connected between the first fixed bracket and the second fixed bracket, wherein the second fixed bracket moves vertically relative to the first fixed bracket through the flexible connecting portion in response that the operating surface is uneven.   
     
     
         10 . The automatic cleaning apparatus according to  claim 4 , characterized in that, the first connecting rod pair or the second connecting rod pair is a hollowed-out structure. 
     
     
         11 . The automatic cleaning apparatus according to  claim 6 , characterized in that, the floating lifting and lowering structure further comprises:
 a flexible connecting portion connected between the first fixed bracket and the second fixed bracket, wherein the second fixed bracket moves vertically relative to the first fixed bracket through the flexible connecting portion in response that the operating surface is uneven.   
     
     
         12 . The automatic cleaning apparatus according to  claim 7 , characterized in that, the floating lifting and lowering structure further comprises:
 a flexible connecting portion connected between the first fixed bracket and the second fixed bracket, wherein the second fixed bracket moves vertically relative to the first fixed bracket through the flexible connecting portion in response that the operating surface is uneven.   
     
     
         13 . The automatic cleaning apparatus according to  claim 8 , characterized in that, the floating lifting and lowering structure further comprises:
 a flexible connecting portion connected between the first fixed bracket and the second fixed bracket, wherein the second fixed bracket moves vertically relative to the first fixed bracket through the flexible connecting portion in response that the operating surface is uneven.