Telescopic link and supporting device

The utility model belongs to the technical field of flexible pipe technique and specifically relates to a telescopic link and supporting device is related to. Insecure technical problem is connected to pipeline enclosure in order to alleviate the flexible pipe that exists among the prior art. Including the flexible nest of tubes of first flexible pipe, second and the flexible pipe of third that connects gradually. The flexible nest of tubes of second is with first flexible pipe thread connection and can partially accomodate in first flexible intraductal. The flexible pipe of third is with theflexible nest of tubes threaded connection of second and can partially accomodate in the flexible nest of tubes of second. The utility model provides a pipeline enclosure connect insecure technical problem. 本实用新型涉及伸缩管技术领域，尤其是涉及种伸缩杆及支撑设备。以缓解现有技术中存在的伸缩管的管道间连接不牢固的技术问题。包括依次连接的第伸缩管、第二伸缩管组和第三伸缩管。第二伸缩管组与第伸缩管螺纹连接并且能够部分收纳于第伸缩管内。第三伸缩管与第二伸缩管组螺纹连接并且能够部分收纳于第二伸缩管组内。本实用新型解决了管道间连接不牢固的技术问题。