发明名称 |
Buried pipeline cleaning or boring-out system for restoration of old pipeline without cutting trench has chain drive for boring body with chain tensioning pulley in shaft |
摘要 |
<p>There is a shaft at each end of the pipeline (16) being bored out. An elongated body (4) with a boring head (5,6) at its front end is pulled through the pipeline toward the second shaft by a chain drive mechanism (1). The mechanism incorporates a vertically-reciprocating rod (18) with a pulley (2) with a locking device (9) on its lower end. The drive chain (3) passes over the pulley and two runs of the chain pass downward to two guide pulleys (10,11) side-by-side. The pulleys have locking devices (12,13). The first run of the chain is attached to the tip of the boring head and the second run passes through the elongated body and may be clamped (8) and the rear end of it.</p> |
申请公布号 |
DE10353442(A1) |
申请公布日期 |
2005.06.23 |
申请号 |
DE2003153442 |
申请日期 |
2003.11.12 |
申请人 |
KANAL- UND ROHRTECHNIK GMBH |
发明人 |
RICHTER, BERND;SCHROBBACK, PETER;VOGEL, THOMAS |
分类号 |
E21B7/20;E21B7/30;F16L55/165;(IPC1-7):E03F3/06;F16L1/028 |
主分类号 |
E21B7/20 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|