S The structure for mounting the wear ring in S-pipe in concrete pumping device

摘要

The present invention relates to a structure for mounting the wear ring 15 of the concrete pumping device S-pipe (5), which is installed outside the hopper (3) for agitating and agitating concrete, and sucked concrete and then pumped A concrete plate, a wear plate 12 formed on the inner wall surface of the hopper 3 and attached to at least two or more through-holes 14 communicating with the concrete cylinder, and concrete formed on the inner wall surface of the hopper 3. One side is attached to the discharge hole 13 and the other side is alternately connected to the through hole 14 to be in contact with the surface of the wear plate 12, S pipe for flowing the concrete conveyed from the concrete cylinder to the concrete discharge hole 13 side ( 5) In the mounting structure of the wear ring 15 of the concrete pumping device S pipe 5, the inner diameter of the S pipe 5 and the inner diameter of the wear ring 15 are formed at the end of the wear plate 12 side of the S pipe 5. The jaw portion 21 having a larger diameter is formed , The outer circumferential surface of the wear ring 15 having an annular shape is fitted to the inner circumferential surface of the jaw portion 21 to form a gap having a diameter larger than the inner diameter of the S pipe 5 and the inner diameter of the wear ring 15, so that the wear ring 15 when concrete flows. ) Is to be in close contact with the wear plate 12 to prevent the high-pressure concrete flowing inside the pipe to leak out of the pipe.