Wheel telescoping device of bassinet

The utility model belongs to the technical field of the telescoping device and specifically relates to a wheel telescoping device of bassinet, including metal sheet and connecting rod, the connectingrod sets up in the metal sheet middle part, and metal sheet and connecting rod welding, metal sheet four sides angle swing joint has the bolt, and the positive fixedly connected with connecting axle of connecting rod, the both ends scarf joint has main loose axle about the connecting axle, and driving shaft right -hand member fixedly connected with annular slab, annular slab rightmost side zonulaeoccludens has pivot shaft of wheel, and the welding of the pivot shaft of wheel outside has the wheel bearing, the wheel bearing lateral wall has cup jointed the matrix, this kind of wheel telescoping device of bassinet, based on traditional wheel design, compare in the simple and easy vapour -pressure type shock -absorbing structure of traditional wheel, the elasticity shock attenuation that theuse is become by annular s