Device for assisting coating of radial self-sealing tire of truck and bus

A device for assisting coating of a radial self-sealing tire of trucks and buses, comprising:

• a support frame;
• and
• a positioning frame;
• wherein both ends of a top of one side of the support frame are fixedly provided with a first bearing through a bearing seat, respectively;
• wherein the two first bearings are arranged coaxially;
• the positioning frame is rotatably connected between the two first bearings;
• two chutes are arranged spaced apart inside the support frame;
• the two chutes are arranged opposite to a fixing frame;
• the two chutes are each slidably connected with a sliding connection seat, respectively;
• a lifting frame is arranged between the two sliding connection seats;
• a rotation seat is fixedly arranged at a middle of the lifting frame;
• the lifting frame is rotatably connected with a cylinder through the rotation seat;
• a telescopic end of the cylinder is connected with a drive rod;
• an end of the drive rod away from the cylinder is rotatably connected to the positioning frame;
• the cylinder is configured to drive the drive rod to extend and retract along an axial direction of the drive rod;
• and the drive rod is configured to drive the positioning frame to rotate around a central axis between the two first bearings to make the positioning frame tangent to a tread of the radial self-sealing tire.