Creeping structure for use in creeping toy

Abstract

A creeping structure for use in creeping toy includes two feet, two legs, and a driving device. The two feet each includes a top surface, and a convex bottom sheet. The two legs each is rotatably connected to the top surface of a corresponding foot, the two legs are rotatably connected with each other. The driving device is installed on the joint of the legs, and is configured for driving one of the legs to rotate with respect to the other to move the leg towards or away from the other.

1 . A creeping structure for use in a creeping toy, comprising:
 two feet each comprising a top surface, and a convex bottom sheet;   two legs each rotatably connected to the top surface of a corresponding foot, the two legs being rotatably connected with each other; and   a driving device installed on the joint of the legs, being configured for driving one of the leg to rotate with respect to the other and moving the leg towards or away from the other.   
   
   
       2 . The creeping structure as claimed in  claim 1 , wherein the foot further comprises a side-wall integrally formed with the top surface; the convex bottom sheet is capped on the bottom of the side-wall. 
   
   
       3 . The creeping structure as claimed in  claim 1 , wherein the driving device comprises a first motor and a transmitting gear; the first motor comprises a driving gear matched with the transmitting gear; and the first motor and the transmitting gear is installed on each leg so that the transmitting gear is engaged with the driving gear. 
   
   
       4 . The creeping structure as claimed in  claim 3 , wherein the first motor is a rotary piezoelectric motor. 
   
   
       5 . The creeping structure as claimed in  claim 1 , wherein each of the two feet further comprises a retractable pole, a first foot joint; each of the first foot joint comprises two parallel plates extending perpendicularly upward from the top surface; the two plates are spaced apart from each other and each defines a pair of first pivot holes; one end of the legs respectively defines a second pivot hole aligned with a corresponding pair of the first pivot hole; and the feet are rotatably connected to the legs by inserting a rotatable shaft through the first and second pivot holes. 
   
   
       6 . The creeping structure as claimed in  claim 1 , wherein the bottom sheet is made of a material selected from the group consisting of rubber and silica gel. 
   
   
       7 . A creeping structure for use in a toy, comprising:
 two feet each comprising a top surface, a convex bottom sheet and a first brake, the top surface comprising a projection protruding perpendicularly from the inner surface, the projection defining a receiving portion, the first brake received in the receiving portion, the first brake configured for changing the air space between the bottom sheet and a creeping surface supporting the two feet;   two legs each rotatably connected to the top surface of a corresponding foot, the two legs being rotatably connected with each other;   a driving device installed on the joint of the legs, being configured for driving one of the leg to rotate with respect to the other and to move the leg towards or away from the other; and   a controlling unit configured for controlling the driving device and the first brake to act synchronously, and changing the creeping speed of the two feet.   
   
   
       8 . The creeping structure as claimed in  claim 7 , wherein the foot further comprises a side-wall integrally formed with the top surface; the convex bottom sheet is capped on the bottom of the side-wall. 
   
   
       9 . The creeping structure as claimed in  claim 7 , wherein the driving device comprises a first motor and a transmitting gear; the first motor comprises a driving gear matched with the transmitting gear; and the first motor and the transmitting gear is installed on each leg so that the transmitting gear is engaged with the driving gear. 
   
   
       10 . The creeping structure as claimed in  claim 9 , wherein the first motor is a rotary piezoelectric motor. 
   
   
       11 . The creeping structure as claimed in  claim 7 , wherein each of the two feet further comprises a retractable pole, and a first foot joint; each of the first foot joint comprises two parallel plates extending perpendicularly upward from the top surface; the two plates are spaced apart from each other; and each defines a pair of first pivot holes; one end of the legs respectively defines a second pivot hole aligned with a corresponding pair of the first pivot hole; and the feet are rotatably connected to the legs by inserting a rotatable shaft through the first and second pivot holes. 
   
   
       12 . The creeping structure as claimed in  claim 7 , wherein bottom sheet is made of a material selected from the group consisting of rubber and silica gel. 
   
   
       13 . The creeping structure as claimed in  claim 7 , wherein the controlling unit is installed in one of the legs.