Method for refitting common water meter into frost crack prevention water meter

The invention discloses a method for converting a common water meter into a frost crack prevention water meter. The method comprises utilization of a water meter shell, a water yield metering device and a frost crack prevention tissue material, and an arranging method of the frost crack prevention tissue material. The water meter shell and the water yield metering device can form a complete conventional water meter which is not resistant to a frost crack. The method is characterized in that the frost crack prevention tissue is provided with a flexible deformation material which comprises a main flexible deformation layer material, a water meter shell surface adsorption force changing material, a smooth outer layer capable of contacting with water in the meter, and the frost crack prevention tissue is closely connected with the inner surface of the water meter shell. According to the method, the water flows smoothly and the resistance is small; thermal insulation is achieved, the overcooling icing speed is red