Title:
HIDDEN STEPLESS TELESCOPIC ADJUSTMENT DEVICE, TELESCOPIC PILE, AND APPLICATION
Document Type and Number:
WIPO Patent Application WO/2019/174020
Kind Code:
A1
Abstract:
A hidden stepless telescopic adjustment device (100), a telescopic pile (10), and an application. The hidden stepless telescopic adjustment device (100) is hidden inside the telescopic pile (10) to implement stepless telescopic adjustment of the telescopic pile (10), thereby obtaining the telescopic pile (10) that is simple in appearance and adapted to stepless telescopic adjustment. The telescopic pile (10) further comprises an inner rod (11) and an outer tube (12). The hidden stepless telescopic adjustment device (100) comprises a drive plug (101) and an outer tube expanding plug (102). The drive plug (101) and the outer tube expanding plug (102) can be driven by means of relative rotation between the inner rod (11) and the outer tube (12) to rotate with respect to each other to adjust the frictional force between the outer tube expanding plug (102) and the outer tube (12), thereby controlling the telescopic movement of the telescopic pile (10) by the adjustment of the frictional force between the outer tube expanding plug (102) and the outer tube (12).
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Inventors:
ZHOU MI (CN)
WANG HUANXIAN (CN)
WANG HUANXIAN (CN)
Application Number:
PCT/CN2018/079210
Publication Date:
September 19, 2019
Filing Date:
March 16, 2018
Export Citation:
Assignee:
ZHOU MI (CN)
International Classes:
E01F13/04
Foreign References:
| CN2609397Y | 2004-04-07 | |||
| CN201275388Y | 2009-07-22 | |||
| US20150320159A1 | 2015-11-12 | |||
| CN2700626Y | 2005-05-18 | |||
| JP2015094465A | 2015-05-18 | |||
| CN2409817Y | 2000-12-13 |
Attorney, Agent or Firm:
NINGBO RAYMOND IP AGENCY FIRM (CN)
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