Single-chisel bit of taut assembly of swallow tail base bit and screw

The utility model discloses a single-chisel bit of taut assembly of swallow tail base bit and screw, it constitutes mostly to assemble the back including the borer body, the bit body, gasket and screw no. 4. Weld into carbide bit and bit seat and constitute the bit body after an organic whole, the assembly borer body top along radially set up bit body groove in, fasten with the screw at last. The utility model has the advantages of design simple, rational in infrastructure, showing of founing convenient, easily production, not only can overcome the defect that current single-chisel bit exists, work efficiency when having improved commonality, maintainability and rock drilling, but also realized on-the-spot simple and easy assembly, welded function once again, if at rock drilling operation in-process, carry volume less the bit body, gasket and screw more, just can reduce and carry the whole spare of single-chisel bit, can conveniently retrieve carbide, reduce the carbide use amount relatively.