Moving devices used in liquid and pool cleaning robots

Abstract

The present disclosure provides a pool cleaning robot, comprising a dust box and a mode switching member configured to achieve a position switching between above the water surface and below the water surface, wherein the mode switching member comprises: a buoyancy cavity and a buoyancy force adjustment member, and configured to adjust buoyancy magnitude of the pool cleaning robot; and a first propeller, configured to adjust a first drive force which is opposite to a first preset direction; and wherein the position switching between above the water surface and below the water surface at least comprises: the pool cleaning robot moves to a position close to the water surface based on the first drive force generated by the first propeller; and the buoyancy force adjustment member increase a volume of gas in the cavity.

What is claimed is: 
     
         1 . A pool cleaning robot, comprising:
 a dust box comprising a water surface dust box and an in-water dust box opening, wherein: the water surface dust box opening is configured as an entrance of trash on the water surface entering the dust box, and the in-water dust box opening provided on the dust box is configured as an entrance of trash in the water entering the dust box;   a mode switching member, configured to achieve a position switching between above the water surface and below the water surface, wherein the mode switching member comprises:
 a buoyancy force adjustment assembly, comprising a buoyancy cavity and a buoyancy force adjustment member, and configured to adjust buoyancy magnitude of the pool cleaning robot; and 
 a first propeller, configured to adjust a first drive force which is opposite to a first preset direction; and 
   wherein the position switching between above the water surface and below the water surface at least comprises:
 the pool cleaning robot moves to a position close to the water surface based on the first drive force generated by the first propeller; and 
 the buoyancy force adjustment member increases a volume of gas in the cavity. 
   
     
     
         2 . The pool cleaning robot of  claim 1 , wherein the first propeller is provided with a first opening and a second opening, wherein the first opening provided on the top of the pool cleaning robot, the second opening provided on the bottom of the pool cleaning robot. 
     
     
         3 . The pool cleaning robot of  claim 1 , wherein the first preset direction is the direction the first propeller discharge liquid, wherein an angle between the first preset direction and a vertical direction is [0°, 90°). 
     
     
         4 . The pool cleaning robot of  claim 1 , wherein the first preset direction is vertical. 
     
     
         5 . The pool cleaning robot of  claim 1 , further comprising second propellers provided on each of a left side and a right side of the pool cleaning robot, and configured to generate a second drive force opposite to a second preset direction; wherein
 an angle between the second preset direction and a horizontal direction is (−90°, 0°].   
     
     
         6 . The pool cleaning robot of  claim 5 , wherein both of the first propeller and the second propeller are provided with an impeller and a motor assembly, and the motor assembly is configured to power the impeller. 
     
     
         7 . The pool cleaning robot of  claim 1 , wherein the dust box further comprises a dust box roller brush assembly, configured to entrain the trash from the water surface into the dust box when performing pool water surface cleaning. 
     
     
         8 . The pool cleaning robot of  claim 1 , wherein the buoyancy force adjustment assembly further comprises an air inlet configured to supply gas into the buoyancy cavity, and wherein the air inlet is provided on the buoyancy cavity or on a housing of the pool cleaning robot or independent of the buoyancy cavity. 
     
     
         9 . The pool cleaning robot of  claim 8 , further comprising a first sensor configured to detect the position of the pool cleaning robot, or a second sensor configured to detect whether the air inlet is positioned in air. 
     
     
         10 . The pool cleaning robot of  claim 8 , wherein, when the air inlet is located in the air, the buoyancy force adjustment member increases the volume of gas in the buoyancy cavity. 
     
     
         11 . The pool cleaning robot of  claim 1 , further comprising a cover plate of the water surface dust box opening configured to adjust an opening or closing state of the water surface dust box opening, and a cover plate of the in-water dust box opening configured to adjust an opening or closing state of the in-water dust box opening. 
     
     
         12 . The pool cleaning robot of  claim 1 , further comprising a trash guiding member, located on an outside of the water surface dust box opening; and wherein a size of a first end away from the water surface dust box opening is larger than a size of the water surface dust box opening, and a size of a second end connected to the water surface dust box opening is not smaller than a size of the water surface dust box opening. 
     
     
         13 . The pool cleaning robot of  claim 1 , further comprising a detection member configured to test water quality of the pool and obtain water quality data of the pool. 
     
     
         14 . The pool cleaning robot of  claim 1 , wherein the buoyancy force adjustment assembly comprising two buoyancy cavities provided symmetrically on each of a left side and a right side of the pool cleaning robot. 
     
     
         15 . The pool cleaning robot of  claim 8 , wherein the buoyancy cavity is made of a flexible material, and the buoyancy force adjustment member is at least configured to inject air into the buoyancy cavity through the air inlet to increase the volume of gas in the buoyancy cavity. 
     
     
         16 . The pool cleaning robot of  claim 8 , wherein the buoyancy cavity is made of a rigid material; and the buoyancy force adjustment member is at least configured to pump out the liquid in the buoyancy cavity, and the gas enters the buoyancy cavity through the air inlet, to increase the volume of gas in the buoyancy cavity. 
     
     
         17 . A pool cleaning robot, comprising:
 a mode switching member, configured to achieve a position switching between above the water surface and below the water surface; wherein the mode switching member comprises:
 a buoyancy force adjustment assembly, comprising a buoyancy cavity and a buoyancy force adjustment member, is configured to adjust the buoyancy magnitude of the pool cleaning robot; and 
 a first propeller, configured to adjust a first drive force which is opposite to a first preset direction; 
   wherein the position switching between above the water surface and below the water surface at least comprises:
 the pool cleaning robot moves to a position close to the water surface based on the first drive force generated by the first propeller; 
 the buoyancy force adjustment member increases the volume of gas in the cavity; and 
   the pool cleaning robot further comprising second propellers, provided on each of a left side and a right side of the pool cleaning robot, are configured to generate a second drive force opposite to a second preset direction.   
     
     
         18 . The pool cleaning robot of  claim 17 , wherein both of the first propeller and the second propellers are provided with an impeller and a motor assembly, the motor assembly is configured to power the impeller. 
     
     
         19 . The pool cleaning robot of  claim 17 , wherein the buoyancy force adjustment assembly further comprising an air inlet configured to supply gas into the buoyancy cavity, wherein the air inlet is provided on the buoyancy cavity or on a housing of the pool cleaning robot. 
     
     
         20 . The pool cleaning robot of  claim 17 , wherein an angle between the first preset direction and the vertical direction is [0°, 90°), and an angle between the second preset direction and the horizontal direction is (−90°, 0°].