Pipeline valve based on calcium carbonate powder transmission

The utility model discloses a pipeline valve based on calcium carbonate powder transmission. The pipeline valve comprises a pipeline, a central support, block pieces, pulleys, a control ring, linkage rods, a locking plate and poking rods, the control ring is mounted outside grooves of the pulleys, positioning through holes are formed in the control ring, a sliding groove is formed in one end of each linkage rod, the other end of each linkage rod is fixed to a shaft of the corresponding block piece, the locking plate is fixed on the pipeline, a plurality of locking holes are formed in the locking plate, the radius of each locking hole is as same as that of each positioning through hole, the number of the poking rods is same as that of the block pieces, one end of each poking rod is fixed on the control ring, the other end of each poking rod is inserted into the corresponding sliding groove along the radial direction of the control ring, and the poking rods are uniformly distributed on the control ring. When the control ring rotates, the poking rods drive the respective linkage rods to rotate respectively, rotation of the linkage rods drives the related shafts to rotate, all the block pieces are finally driven to rotate, and a latch is inserted to realize locking after the positioning through holes and the locking holes are aligned. The pipeline valve has the advantages of reasonable structure, high reliability, transmission uniformity and low noise.