Acoustic device for water supply network valve detection

The utility model relates to the field of acoustic devices, and provides an acoustic device for water supply network valve detection, which comprises a device main body, a mounting seat and a magnetic hinge, the device main body comprises an inner cavity, an electronic component and a pressure plate, one end of the inner cavity is provided with a first accommodating cavity, the electronic component is detachably mounted at the bottom of the first accommodating cavity, and the pressure plate is detachably mounted at an opening of the first accommodating cavity; one end of the mounting seat is detachably mounted on the periphery of the outer wall of the inner cavity, a mounting part is arranged at the other end of the mounting seat, and the magnetic hinge is movably connected with the mounting part through a first connecting piece; the magnetic hinge is formed by hinging at least two magnetic frames end to end, and the adjacent magnetic frames are movably connected through second connecting pieces. Through the