| 摘要 |
FIELD: construction; repair and reconstruction of pipelines. SUBSTANCE: proposed device contains pneumatic shock machine moved along axis of old pipeline and pulling device in form cable hinge-secured on its housing, hood with cutting members for destruction of old pipe, expander for driving broken parts of old pipe into soil, coupling connected with expander for fastening new section of pipe, anvil with shoulder and holes to pass members of pulling device installed for movement relative to housing. Shoulder of anvil rests on hood engaging with shoulder at transmission of shock impulse. EFFECT: enlarged range of technical means. 1 dwg |
