Patent ID: 8777882

Claim:
An air traction belt structure, comprising: an inner inflatable traction belt forming an inflatable space therein; wherein the inner inflatable traction belt has an outer side provided with an air valve adjacent to an end of the inner inflatable traction belt, and the air valve is in communication with the inflatable space such that the inflatable space can be inflated through the air valve; wherein the inner inflatable traction belt is formed with a through hole adjacent to the end of the inner inflatable traction belt; and an outer solid support belt having a width smaller than that of the inner inflatable fraction belt and configured for movably surrounding the outer side of the inner inflatable traction belt over an area corresponding to a transversely middle section of the inner inflatable traction belt; wherein the outer solid support belt has a first end passing through the through hole of the inner inflatable traction belt, extending to an inner side of the inner inflatable traction belt and fixedly provided with a fixing ring, and a second end configured to pass through the fixing ring such that the inner inflatable traction belt can be tightened by pulling the second end of the outer solid support belt; wherein the fixing ring has a width greater than the through hole, and the inner side of the inner inflatable traction belt adjacent to the through hole is extended with at least a limiting portion, and the limiting portion has an end connected to the first end of the outer solid support belt or the fixing ring.