Water meter snap ring locking device

The invention provides a water meter snap ring locking device, belongs to the technical field of machinery and solves the problem that an existing water meter snap ring adopting manual extrusion is large in labor intensity and low in efficiency and cannot achieve in-place extrusion. The water meter snap ring locking device comprises a machine frame. A positioning groove for positioning a water meter is arranged on the machine frame, the outer side of the positioning groove is provided with at least three press sheets, the end faces of adjacent press sheets can abut against, all of press sheets can form a circle in a surrounding mode, and a driving mechanism capable of enabling the press sheets to move and a guiding mechanism capable of enabling the press sheets to move along a radial line of the positioning groove are arranged between each press sheet and the machine frame. The water meter snap ring locking device has the advantages of being compact in structure and high in using stability and control safety.