Concatenation screen coupling assembling with fine setting function

Concatenation screen coupling assembling with fine setting function, including first rolling disc and second rolling disc, first rolling disc includes the diapire and encloses establishes the circumferential lateral wall of diapire again, the middle part of diapire is provided with a pivot, the pin joint of second rolling disc is in the pivot, be fixed with the fixed connecting plate of screen ofone and two concatenation of each other on first rolling disc and the second rolling disc respectively, be provided with the pin that to follow the radial activity of first rolling disc on the lateralwall, but the recess that has a plurality of supply and marketing nail to penetrate is arranged to second rolling disc week, it is used for the spring that pushes away the pin towards the orientationtop that is close to the second rolling disc to be provided with one between first rolling disc and the pin, the spiro union has a bolt on the lateral wall, the medial extremity of bolt forms a pushing part, this pushing part