Few first spiral coil

The utility model relates to a few first spiral coil. Few first spiral coil includes that an at least parallel hugs closely the spiral body that coils, leaves the clearance between the last adjacent spirally twisted circle of few first spiral coil, and the width in this clearance be single spiral pipe siphuncle integral multiple directly. Few first spiral coil assembles into the method of large -scale multi -screw coil pipe, and it makes up an organic whole with their nestifications, then carry out the plastic through selecting a plurality of assorted few first spiral coil, makes all few first spiral coil keep parallel and level, large -scale multi -screw coil pipe. The utility model discloses the current spiral coil machine of rational utilization under the condition that not increase equipment dropped into, through the improvement of technology means, succinctly produces large -scale multi -screw coil pipe effectively, has reduced equipment input cost and cycle, has solved the bottleneck problem that high -