Sealing connecting piece for leak detection

The utility model relates to a sealing connecting piece for leakage detection, the connecting piece comprises a body, a mounting assembly and an inflating valve, and a first cavity is formed in the body; the installation assembly comprises a conduction piece and an installation connector which are connected, a circulation channel is formed in the conduction piece in a penetrating mode, the conduction piece is arranged on the body, the circulation channel is communicated with the first cavity, the installation connector is used for being connected with a to-be-detected piece, a second cavity is formed in the to-be-detected piece, and the circulation channel is communicated with the second cavity; the inflating valve is arranged on the body and communicated with the first cavity, and a connecting end is formed on the inflating valve and used for being connected with a detection device. The connecting piece can realize rapid detection, and also has the characteristics of sealing, small size and low cost. 本申请涉及一种