The invention relates to a hot water circular
cushion for warming by using
water vapor to push water to circularly flow for
heat transmission, which comprises a hose, a
cushion body, an expanding water tank, a start holding valve,
tail-end holding valves, an electrical
heating element and a hot
water pipe. The hot
water pipe is combined with the electrical
heating element, and the flexible
pipe is arranged in the
cushion body. The hot water circular cushion for warming also comprises a vapor
pipe and an exhaust connecting hose. One end of the hot
water pipe is connected with one end of the vapor
pipe, the other end of the vapor pipe is connected with one end of the hose, the other end of the hose is connected with one end of the exhaust connecting hose, the other end of the exhaust connecting hose is connected with one end of the expanding water tank, and the other end of the expanding water tank is connected with the other end of the hot water pipe through a connecting pipe to form a circular passage. The start holding valve is arranged on the connecting pipe, the
tail-end holding valves are arranged on the optional positions of the hose and the exhaust connecting hose, and the direction of the start holding valve and the directions of the
tail-end holding valves are the same. The volume in the hot water pipe is matched with the volume in the vapor pipe, and an inlet connecting hose is added between the vapor pipe and the hose. The temperature of the water entering the hose in the cushion body is not high by using the structure, and the water is very comfortable to use.