Structure is detained to eccentric pivot of toper

The utility model relates to a structure is detained to eccentric pivot of toper comprises dovetail, nut, the toper fourth of the twelve earthly branches, eccentric shaft, its characterized in that: be equipped with the dovetail of butt joint usefulness on the prefab, in the dovetail was arranged in at the toper fourth of the twelve earthly branches, the toper fourth of the twelve earthly brancheswas connected respectively at the both ends of eccentric shaft to the nut forms through being fixed, space department between the prefab and the toper fourth of the twelve earthly branches irritatesgrouting material and consolidates for two prefabricated sections form wholly, accomplish the butt joint. It is outstanding this kind of dovetail and the novel structure that the combination of the eccentric pivot knot of toper formed mainly, does not have clearly and definitely requirement to the concrete size of the eccentric pivot knot of prefabricated section and toper. 本实用新型涉及种锥形偏心轴榫扣结构，由燕尾槽、螺母、锥形卯、偏心轴组成，其特征在于：预制件上设有对