Frame of a snowshoe and a snowshoe thereof

A snowshoe, comprising:

• an annular frame with a front end, a middle portion and a rear portion with a rear end,
• a vamp;
• and
• an upper;
• wherein
• the annular frame is made from a metal pipe with a triangular cross-section,
• the front end of the annular frame is upturned, the middle portion of the annular frame is substantially horizontal, and the rear portion of the annular frame is horizontal or upturned;
• the annular frame has a top surface for mounting the vamp, the vamp is connected to the top surface of the frame by riveting or screwing;
• the annular frame has a bottom surface with a sharp downward angle, and a plurality of lateral teeth for anti-skid effect are mounted on the bottom surface of the frame;
• the vamp is made of a combination of a hard plastic soleplate and a soft plastic face plate or other materials;
• a heel pedal is connected to the rear of the vamp by riveting or screwing, and a lifting device is disposed on the heel pedal, the lifting device comprises a support rod, the support rod is a U-shaped metal rod with left and right downward bent sides, a rear cross rod of the support rod is a corrugated cross rod;
• the heel pedal is disposed on the vamp, a plurality of positioning slots for receiving and positioning two ends of the support rod are disposed on the vamp on left and right sides of the heel pedal;
• and
• the two ends of the support rod pass downward through the positioning slots and are rotatably connected directly or indirectly to a rear tooth piece that is transversely fixed on the frame.