Positioning apparatus for foldable running machine

1. A positioning apparatus for a foldable running machine, the positioning apparatus comprising:

a base;

a running platform pivotally connected to the base; and

a folding assembly connected to the running platform, the folding assembly comprising:

at least one slide guide rail;

at least one cylinder comprising a piston rod slidably coupled to the slide guide rail, wherein both the cylinder and the slide guide rail are parallel to the extending direction of the running platform; and

at least one rod comprising a first end pivotally and directly connected to the piston rod of the cylinder at first pivot and a second end pivotally connected to the base wherein the first pivot moves along the platform as the platform folds.

2. The positioning apparatus of claim 1 , wherein the base comprises a plurality of feet standing on the ground, at least one first hinge base located on the base, and at least one second hinge base located on the base, the running platform comprises at least one foot standing on the ground and at least one rod comprising a first end pivotally connected to the running platform and a second end pivotally connected to the second hinge base of the base, and the second end of the rod of the folding assembly is pivotally connected to the first hinge base.

3. The positioning apparatus of claim 2 , wherein the running platform comprises:

a hollow frame;

a belt disposed on the hollow frame; and

a driving mechanism for driving the belt.

4. The positioning apparatus of claim 2 , wherein the cylinder of the folding assembly is pneumatic.

5. The positioning apparatus of claim 2 , wherein the cylinder of the folding assembly is hydraulic.

6. The positioning apparatus of claim 2 , wherein the base comprises a control panel and at least one handrail disposed thereon.

7. A positioning apparatus for a foldable running machine, the positioning apparatus comprising:

a base made of frames and comprising a left side and a right side opposite each other;

a running platform comprising:

a hollow frame comprising:

a front portion comprising a hole disposed thereon; and

a rear portion;

a left rod comprising a first end pivotally connected to the left side of the front portion of the hollow frame and a second end pivotally connected to the left side of the base;

a right rod comprising a first end pivotally connected to the right side of the front portion of the hollow frame and a second end pivotally connected to the right side of the base;

a belt disposed on the hollow frame;

a driving mechanism for driving the belt;

a folding assembly connected to the running platform, the folding assembly comprising:

at least two slide guide rails;

at least two cylinders comprising piston rods slidably coupled to the slide guide rails respectively, wherein the cylinders and the slide guide rails are parallel to the extending direction of the running platform;

at least two rods each comprising a first end pivotally and directly connected to one of the piston rods of the cylinders and a second end pivotally connected to the base; and

a positioning assembly comprising:

a swinging stick pivotally connected to the front portion of the hollow frame of the running platform;

a hook disposed on the base for catching the swinging stick through the hole of the front portion of the hollow frame of the running platform;

a handle pivotally connected to the running platform;

a linkage connecting the swinging stick and the handle; and

a biasing member connecting the swinging stick and the front portion of the hollow frame of the running platform.

8. The positioning apparatus of claim 7 , wherein the rear portion of the hollow frame of the running platform comprises a hole disposed thereon, and the handle protrudes from the hole of the rear portion of the hollow frame of the running platform.

9. The positioning apparatus of claim 7 , wherein the swinging stick comprises a pin, and the hook comprises an arc-shaped part catching the pin and an inclined plane located opposite the arc-shaped part.

10. The positioning apparatus of claim 7 , wherein the swinging stick is L-shaped.

11. The positioning apparatus of claim 7 , wherein the biasing member is a spring.