Connecting device for external sensor of intelligent water meter

The connecting device comprises a shell, a sensing assembly and a locking assembly, an installation block is fixedly connected to the outer wall of the rear side of the shell, the sensing assembly is arranged at the top of the installation block and comprises a sensing box, a metering communication module and a non-magnetic sensor, a first open groove is formed in the front side of the shell, and a second open groove is formed in the rear side of the shell. Fixing plates are symmetrically and fixedly connected to the outer walls of the front sides of the shell on the left side and the right side of the first open groove, and the locking assemblies are arranged on the fixing plates; the connecting device has the advantages that a space is reserved for installation of the sensor, the sensor can be rapidly and conveniently installed on a common water meter, reading and transmission of data are achieved, the installation difficulty between the sensor and the water meter is reduced, meanwhile, the connecting devic