ASSEMBLY FOR PREVENTING THE WINTER-SOWING DESTRUCTION OF WATER-METER

摘要

PURPOSE: A freezing destruction prevention assembly of a water gauge is provided to prevent frost break by absorbing the volume expansion due to water freezing by arranging an air bag. CONSTITUTION: A freezing destruction prevention assembly of a water gauge comprises a display unit, an upper housing(210), a lower housing, an airbag(220), and a fixing unit(230). The display unit indicates the rotation quantity of a decelerator gear. The upper housing is formed between the display unit and lower housing, and comprises a connection hole in the floor side. The lower housing comprises an impeller. The airbag is arranged inside the top Housing and is formed to be penetrated in the external side, and comprises an air supply nozzle withdrawn through a lead hole to outside. The fixing unit comprises a top plate, a bottom plate, and a hollow pipe. The upper plate is arranged in an opened top of the housing, and the bottom plate is arranged in the lower part of the top housing. The hollow pipe is connected to the top plate and bottom plate and the axis member is penetrated.