Title:
FLUID PRESSURE LOCKING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/047371
Kind Code:
A1
Abstract:
A fluid pressure locking device, comprising a member to be locked (3), a power assembly (4), and N connecting rods (1). The interior of each connecting rod (1) is of a hollow structure. The N connecting rods (1) are connected in sequence. N is an integer greater than or equal to 2. The head end of the first connecting rod (1) is connected to the power assembly (4), and the tail end of the N-th connecting rod (1) is closed and equipped with the member to be locked (3). A locking assembly (2) is mounted between every two adjacent connecting rods (1). The locking assembly (2) comprises a hollow sleeve body (2-1), an inner connector (2-2), a locking body (2-3), a first sealing ring (2-4), and a second sealing ring (2-5). According to the locking device, all the connecting rods can be synchronously locked or unlocked, the locking time can be decreased from conventional 10 seconds or above to be within 1 second, locking is quick, and operation is easy; moreover, during use, because the connecting rods can be adjusted, the use flexibility is high, and the angle adjusting range is large.
Inventors:
DING QIWU (CN)
Application Number:
PCT/CN2020/110348
Publication Date:
March 18, 2021
Filing Date:
August 20, 2020
Export Citation:
Assignee:
DING QIWU (CN)
International Classes:
F16B7/04; F16C11/06
Foreign References:
| DE10234271A1 | 2004-02-12 | |||
| CN110693546A | 2020-01-17 | |||
| CN210660897U | 2020-06-02 | |||
| CN110701160A | 2020-01-17 | |||
| CN103784173A | 2014-05-14 | |||
| CN203144975U | 2013-08-21 | |||
| CN103610555A | 2014-03-05 | |||
| CN106438671A | 2017-02-22 | |||
| DE102004050714A1 | 2006-04-20 | |||
| US5020933A | 1991-06-04 |
Attorney, Agent or Firm:
GUANGDONG YOUZHIMAO INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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