Pull back vehicle capable of switching travelling lines

A pull back car travelling in both straight line and an S-line, comprising a pull back car chassis;

• the pull back car chassis comprising a driving gear box, driving wheel, a driving gear, a steering wheel shaft, steering wheels and a centering spring;
• the pull back car chassis being installed with the driving gear box, the driving gear box being connected with a rear axle, the driving axle being connected with the driving gear, and the driving axle being connected with the driving wheel;
• and
• the pull back car chassis being connected with the steering wheel shaft, the pull back car chassis being is connected with the steering wheels, the pull back car chassis being installed with the centering spring, the driving gear box being connected with an S-typed steering assembly, and the pull back car chassis being connected with a clutch assembly,
• the S-typed steering assembly comprising the driving axle, a clutch gear and a driven gear, the driving gear box being connected with the driving axle, the driving axle being connected with the driving gear, the driving gear being meshed and connected with the clutch gear, and the clutch gear being connected with the driven gear;
• the S-typed steering assembly further comprising a first connecting gear, a transmission gear, a second connecting gear, a speed changing gear A, a third connecting gear, and a speed changing gear B;
• and
• the driven gear being meshed and connected with the first connecting gear, the first connecting gear being meshed and connected with the transmission gear, the transmission gear being meshed and connected with the second connecting gear, the second connecting gear being connected with the speed changing gear A, the speed changing gear A being meshed and connected with the third connecting gear, and the third connecting gear being connected with the speed changing gear B.

A pull back vehicle travelling in both straight line and an S-line, comprising a pull back vehicle chassis;

• the pull back vehicle chassis comprising a driving gear box, driving wheel, a driving gear, a steering wheel shaft, steering wheels and a centering spring;
• the pull back vehicle chassis being installed with the driving gear box, the driving gear box being connected with a driving axle, the driving axle being connected with the driving gear, and the driving axle being connected with the driving wheel;
• and
• the pull back vehicle chassis being connected with the steering wheel shaft, the pull back vehicle chassis being connected with the steering wheels, the pull back vehicle chassis being installed with the centering spring, the driving gear box being connected with an S-typed steering assembly, and the pull back vehicle chassis being connected with a clutch assembly;
• the S-typed steering assembly comprising the driving axle, a clutch gear and a driven gear, the driving gear box being connected with the driving axle, the driving axle being connected with the driving gear, the driving gear being meshed and connected with the clutch gear, and the clutch gear being connected with the driven gear;
• the clutch assembly comprising a connecting rod, a rotating rod and a toggle rod;
• the clutch gear being connected with the connecting rod, the connecting rod fitting against the rotating rod, and the rotating rod abutting against the toggle rod.