Obstacle crossing assembly and robotic cleaner

Abstract

An obstacle crossing assembly includes: at least one traveling wheel group, where each traveling wheel group includes a front wheel and a rear wheel; a first connecting member, where the first connecting member is rotatably connected to the front wheel and the rear wheel respectively; and a second connecting member, where the second connecting member is rotatably connected to the first connecting member, the second connecting member is rotatably connected to a device main body of an owning device, and the second connecting member is disposed by extending towards a front end of the front wheel relative to the first connecting member. In an obstacle climbing stage of the front wheel, the first connecting member anticlockwise rotates to a stop position, and/or the second connecting member clockwise rotates to a stop position, to produce upward tension acting on the front wheel.

1 . An obstacle crossing assembly, comprising:
 at least one traveling wheel group, wherein each traveling wheel group comprises a front wheel and a rear wheel;   a first connecting member, wherein the first connecting member is rotatably connected to the front wheel and the rear wheel, respectively; and   a second connecting member, wherein the second connecting member is rotatably connected to the first connecting member, the second connecting member is rotatably connected to a device main body of an owning device, and the second connecting member is disposed by extending towards a front end of the front wheel relative to the first connecting member,   wherein, in an obstacle climbing stage of the front wheel, the first connecting member anticlockwise rotates to a stop position, and/or the second connecting member clockwise rotates to a stop position, to produce upward tension acting on the front wheel.   
     
     
         2 . The obstacle crossing assembly according to  claim 1 , further comprising:
 a first elastic member, wherein the first elastic member is connected to the first connecting member and the second connecting member, and   wherein, in the obstacle climbing stage of the front wheel, the first elastic member drives the first connecting member to anticlockwise rotate to the stop position, to produce upward tension acting on the front wheel.   
     
     
         3 . The obstacle crossing assembly according to  claim 1 , further comprising:
 a second elastic member, wherein the second elastic member is connected to the device main body and the second connecting member, and   wherein, in the obstacle climbing stage of the front wheel, the second elastic member drives the second connecting member to clockwise rotate to the stop position, to produce upward tension acting on the front wheel.   
     
     
         4 . The obstacle crossing assembly according to  claim 1 , further comprising:
 a first elastic member connected to the first connecting member and the second connecting member, wherein the first elastic member is configured to drive the first connecting member to clockwise or anticlockwise rotate, and in the obstacle climbing stage of the front wheel, the first elastic member drives the first connecting member to anticlockwise rotate to the stop position; and   a second elastic member connected to the device main body and the second connecting member, wherein the second elastic member is configured to drive the second connecting member to clockwise or anticlockwise rotate, and in the obstacle climbing stage of the front wheel, the second elastic member drives the second connecting member to clockwise rotate to the stop position.   
     
     
         5 . The obstacle crossing assembly according to  claim 1 , wherein after the front wheel is contacted with an obstacle to be supported, the first connecting member clockwise rotates to an initial position, to produce downward pressure acting on the front wheel and upward tension acting on the rear wheel. 
     
     
         6 . The obstacle crossing assembly according to  claim 1 , wherein after the front wheel is contacted with an obstacle to be supported, the second connecting member anticlockwise rotates to an initial position, to produce downward pressure acting on the traveling wheel group. 
     
     
         7 . The obstacle crossing assembly according to  claim 4 , wherein
 the first elastic member comprises: a tension spring, a torsion spring, or a pressure spring; and/or   the second elastic member comprises: a tension spring, a torsion spring, or a pressure spring.   
     
     
         8 . The obstacle crossing assembly according to  claim 1 , wherein the first connecting member comprises a first connecting bar, and the second connecting member comprises a second connecting bar. 
     
     
         9 . The obstacle crossing assembly according to  claim 1 , further comprising a first rotating shaft and a second rotating shaft, wherein the first connecting member and the second connecting member are rotatably connected by the first rotating shaft, and the device main body and the second connecting member are rotatably connected by the second rotating shaft. 
     
     
         10 . The obstacle crossing assembly according to  claim 1 , wherein a diameter of the front wheel and a diameter of the rear wheel are the same. 
     
     
         11 . The obstacle crossing assembly according to  claim 1 , wherein a diameter of the front wheel is larger than a diameter of the rear wheel. 
     
     
         12 . A robotic cleaner, comprising:
 a device main body; and   an obstacle crossing assembly, comprising:
 at least one traveling wheel group, wherein each traveling wheel group comprises a front wheel and a rear wheel, the front wheel and the rear wheel rotatably connected to the device main body, respectively; 
 a first connecting member, wherein the first connecting member is rotatably connected to the front wheel and the rear wheel, respectively; and 
 a second connecting member, wherein the second connecting member is rotatably connected to the first connecting member, the second connecting member is rotatably connected to a device main body of an owning device, and the second connecting member is disposed by extending towards a front end of the front wheel relative to the first connecting member, 
 wherein, in an obstacle climbing stage of the front wheel, the first connecting member anticlockwise rotates to a stop position and/or the second connecting member clockwise rotates to a stop position, to produce upward tension acting on the front wheel. 
   
     
     
         13 . The robotic cleaner according to  claim 12 , further comprising:
 a first elastic member, wherein the first elastic member is connected to the first connecting member and the second connecting member,   wherein, in the obstacle climbing stage of the front wheel, the first elastic member drives the first connecting member to anticlockwise rotate to the stop position, to produce upward tension acting on the front wheel.   
     
     
         14 . The robotic cleaner according to  claim 12 , further comprising:
 a second elastic member, wherein the second elastic member is connected to the device main body and the second connecting member,   wherein, in the obstacle climbing stage of the front wheel, the second elastic member drives the second connecting member to clockwise rotate to the stop position, to produce upward tension acting on the front wheel.   
     
     
         15 . The robotic cleaner according to  claim 12 , further comprising:
 a first elastic member connected to the first connecting member and the second connecting member, wherein the first elastic member is configured to drive the first connecting member to clockwise or anticlockwise rotate, and in the obstacle climbing stage of the front wheel, the first elastic member drives the first connecting member to anticlockwise rotate to the stop position; and   a second elastic member connected to the device main body and the second connecting member, wherein the second elastic member is configured to drive the second connecting member to clockwise or anticlockwise rotate, and in the obstacle climbing stage of the front wheel, the second elastic member drives the second connecting member to clockwise rotate to the stop position.   
     
     
         16 . The robotic cleaner according to  claim 12 , wherein after the front wheel is contacted with an obstacle to be supported, the first connecting member clockwise rotates to an initial position, to produce downward pressure acting on the front wheel and upward tension acting on the rear wheel. 
     
     
         17 . The robotic cleaner according to  claim 12 , wherein after the front wheel is contacted with an obstacle to be supported, the second connecting member anticlockwise rotates to an initial position, to produce downward pressure acting on the traveling wheel group. 
     
     
         18 . The robotic cleaner according to  claim 12 , further comprising a first rotating shaft and a second rotating shaft, wherein the first connecting member and the second connecting member are rotatably connected by the first rotating shaft, and the device main body and the second connecting member are rotatably connected by the second rotating shaft. 
     
     
         19 . The robotic cleaner according to  claim 12 , wherein a diameter of the front wheel and a diameter of the rear wheel are the same. 
     
     
         20 . The robotic cleaner according to  claim 12 , wherein a diameter of the front wheel is larger than a diameter of the rear wheel.