Three-dimensional folding frame, electric vehicle, bicycle, and motorcycle

Abstract

A three-dimensional folding frame is disclosed including a first pivot portion for providing a front folding wheel frame with movable folding; a second pivot portion for providing a rear folding wheel frame with movable folding; a third pivot portion for providing a handlebar vertical rod with rotatable folding; and a fourth pivot portion for providing a crossbar with rotatable folding. The crossbar includes a first folding arm and a second folding arm; the first folding arm is movably connected to the front folding wheel frame by means of the first pivot portion; the front folding wheel frame rotates about the first pivot portion and can move relative to the first folding arm; the second folding arm is movably connected to the rear folding wheel frame by means of the second pivot portion.

1 . A three-dimensional folding frame, comprising:
 a first pivot portion for providing a front folding wheel frame with movable folding;   a second pivot portion for providing a rear folding wheel frame with movable folding;   a crossbar is movably connected to the front folding wheel frame by means of the first pivot portion, and the front folding wheel frame is rotatable about the first pivot portion and is movable relative to the crossbar to form a first three-dimensional movement freely foldable state;   the crossbar is movably connected to the rear folding wheel frame by means of the second pivot portion; the rear folding wheel frame is rotatable about the second pivot portion and is movable relative to the crossbar to form a second three-dimensional movement freely foldable state.   
     
     
         2 . The three-dimensional folding frame according to  claim 1 , further comprising a third pivot portion and a fourth pivot portion; the front folding wheel frame is connected to a handlebar vertical rod holder, the handlebar vertical rod holder is connected to the front folding wheel frame by means of the third pivot portion to perform three-dimensional folding on the handlebar vertical rod, and the handlebar vertical rod holder is rotatable in a Z direction while rotating in X and Y directions;
 the crossbar comprises a first folding arm and a second folding arm; the first folding arm and the second folding arm are switchable between a folded state and an unfolded state by means of rotation of the fourth pivot portion.   
     
     
         3 . The three-dimensional folding frame according to  claim 1 , wherein each of the front folding wheel frame and the rear folding wheel frame is provided with a supporting shaft, the crossbar is movably engaged with the supporting shafts, the three-dimensional folding frame reaches a minimum storage volume when the front folding wheel frame and the rear folding wheel frame move to one side of the crossbar on a Z axis. 
     
     
         4 . The three-dimensional folding frame according to  claim 1 , wherein the front folding wheel frame is engaged with the crossbar by using a first block that joints with a first groove and a quick detachable structure, the rear folding wheel frame is engaged with the crossbar by using a second block that joints with a second groove and a quick detachable structure, so as to realize quick and accurate alignment and automatic locking, and avoid shaking during driving. 
     
     
         5 . A three-dimensional folding frame, comprising:
 a folding wheel frame comprising a front folding wheel frame and a rear folding wheel frame;   a front wheel connected to the front folding wheel frame;   a rear wheel connected to the rear folding wheel frame;   wherein the front folding wheel frame is foldable at different functional positions at a front end of a crossbar by means of a first three-dimensional movement of a first pivot portion, and the rear folding wheel frame is foldable at different functional positions at a rear end of the crossbar by means of a rotational movement of a second pivot portion; the first pivot portion is capable of performing a translational movement while rotating.   
     
     
         6 . The three-dimensional folding frame according to  claim 5 , wherein the front folding wheel frame is provided with a supporting shaft, the crossbar is movably engaged with the supporting shaft, and the three-dimensional folding frame reaches a minimum storage volume when the front folding wheel frame moves to one side of the crossbar on a Z axis. 
     
     
         7 . The three-dimensional folding frame according to  claim 6 , wherein the crossbar is provided with a hinge holder, and the hinge holder is connected to a saddle rod so that the saddle rod is foldable close to the crossbar; and a saddle holder is foldable relative to the saddle rod by means of a hinged locking portion. 
     
     
         8 . A three-dimensional folding frame, comprising:
 a folding wheel frame comprising a front folding wheel frame and a rear folding wheel frame;   a front wheel connected to the front folding wheel frame;   a rear wheel connected to the rear folding wheel frame;   wherein the front folding wheel frame is foldable at different functional positions at a front end of a crossbar by means of a rotational movement of a first pivot portion, and the rear folding wheel frame is foldable at different functional positions at a rear end of the crossbar by means of a second three-dimensional movement of a second pivot portion; the second pivot portion is capable of performing a translational movement while rotating.   
     
     
         9 . The three-dimensional folding frame according to  claim 8 , wherein the rear folding wheel frame is provided with a supporting shaft, the crossbar is movably engaged with the supporting shaft, and the three-dimensional folding frame reaches a minimum storage volume when the rear folding wheel frame moves to one side of the crossbar on a Z axis. 
     
     
         10 . The three-dimensional folding frame according to  claim 9 , wherein the crossbar is provided with a hinge holder, and the hinge holder is connected to a saddle rod so that the saddle rod is foldable close to the crossbar; and a saddle holder is foldable relative to the saddle rod by means of a hinged locking portion. 
     
     
         11 . An electric vehicle, comprising the three-dimensional folding frame according to  claim 1 . 
     
     
         12 . A bicycle, comprising the three-dimensional folding frame according to  claim 1 . 
     
     
         13 . A motorcycle, comprising the three-dimensional folding frame according to  claim 1 . 
     
     
         14 . An electric vehicle, comprising the three-dimensional folding frame according to  claim 5 . 
     
     
         15 . A bicycle, comprising the three-dimensional folding frame according to  claim 5 . 
     
     
         16 . A motorcycle, comprising the three-dimensional folding frame according to  claim 5 . 
     
     
         17 . An electric vehicle, comprising the three-dimensional folding frame according to  claim 8 . 
     
     
         18 . A bicycle, comprising the three-dimensional folding frame according to  claim 8 . 
     
     
         19 . A motorcycle, comprising the three-dimensional folding frame according to  claim 8 .