Briquetting locking means for pipe joint

The utility model discloses a pipeline joint pressing piece type retaining device which comprises a retaining pressing coil body (1), a supporting bolt (2), a retaining pressing piece (3), an adhesive ring (4), a spring (5), a threaded sleeve (6) and a retaining bolt (7). The supporting bolt (2) is a T shape bolt which is contacted with the retaining pressing piece (3). The retaining pressing piece (3) is contacted with a socket (8) of a large scale pipeline. A T shape retaining bolt (7) is arranged on the retaining pressing coil body (1). The T shape retaining bolt (7) is fixed at a bolt hole of a mouthing (9) of another large scale pipeline by a nut (10). The utility model provides the pipeline joint pressing piece type retaining device. When the utility model is installed on a large scale water conveyance pipeline, the drop off phenomenon which occurs between the socket and the mouthing of the pipe during conveyance is eliminated. Even though the water conveyance pressure is increased, the drop off phenomenon does not occur anymore, which improves the efficiency of water conveyance.