公开(公告)号：US4372161A

公开(公告)日：1983-02-08

申请号：US260012

申请日：1981-05-04

申请人： Eric G. de Buda ,  John R. Boon ,  Michael P. Dolbey

发明人： Eric G. de Buda ,  John R. Boon ,  Michael P. Dolbey

IPC分类号： G01M3/00 ,  G01N29/265 ,  G01N29/04

CPC分类号： F16L55/34 ,  G01M3/005 ,  G01N29/265

摘要： A pneumatically operated pipe crawler for transporting inspection equipment along the interior of a pipe comprises an elongate cylindrical tube of flexible resilient material, such as latex rubber, the tube being partitioned by longitudinally spaced plugs which are hermetically sealed to the wall of the tube thus defining three longitudinally separated chambers. The inspection equipment is mounted at the leading end of the crawler. To advance the crawler along the pipe, air or other gas is supplied to the chambers and exhausted therefrom in repeated cyclic sequence for sequentially expanding the chamber wall portions into clamping relation with the pipe, each wall portion recovering to its axial length upon deflation of the chamber, thereby to propel the tube step by step along the pipe.

摘要翻译： 用于沿管子内部运输检验设备的气动操作的履带式履带机包括一个细长的弹性弹性材料的圆柱形管，例如乳胶橡胶，该管由纵向隔开的塞子隔开，该塞子密封在管壁上，从而限定 三个纵向分离的室。 检查设备安装在履带的前端。 为了沿着管道推进履带，将空气或其它气体以重复的循环顺序供应到室中并从中排出，以将室壁部分顺序地膨胀成与管的夹紧关系，每个壁部分在收缩时恢复到其轴向长度 从而沿管道逐步推进管。