Precision built-in steel mold of ultralong cluster anchor bolt

The utility provides a steel mould for precisely preembedding superlong cluster lower margin bolt comprising two upper and lower mould and several steel pipes; the several steel pipes are evenly distributed between upper and lower mould for connecting upper and lower mould which are provided with several through-hole corresponding to lower margin bolt; the upper and lower mould are circular, rectangular or polygon in shape according to distribution of lower margin bolt; the upper and lower mould are provided with reinforced rib for promoting intensity and preventing deformation. The utility has a reasonable structure thereby guaranteeing accuracy of pre-embedding parameter of superlong cluster lower margin bolt, Intensifying engineering quality reliability and stability, reducing labor intensity, saving manpower, shortening construction period; The steel mould, being an ideal mould for precise precast for large scale equipment super long cluster lower margin bolt, is mass produced and can be repeatedly used a