Title:
COMBINED BEARING TYPE LARGE-SIZED MOVABLE ELBOW MECHANISM
Document Type and Number:
WIPO Patent Application WO/2021/258252
Kind Code:
A1
Abstract:
Disclosed is a combined bearing type large-sized movable elbow mechanism, comprising elbows, connectors, a gland, a packing seal component and a rotating component. Positions between the elbows and the connectors as well as between the elbows are fixedly connected by means of the gland and are sealed by means of the packing seal component. Cavities are formed at the positions between gland and the connectors as well as between the gland and the elbows, and are internally provided with the rotating component. The rotating component is used for relative rotation of the connectors or the elbows and comprises a centripetal bearing and a thrust bearing, and the elbows and the connectors as well as the elbows are flexibly connected. The combined bearing type large-sized movable elbow mechanism has the beneficial effects that the combined bearing type large-sized movable elbow mechanism is flexible in connection, smooth in rotating, simple in structure, not limited by the pipe diameter, also not limited by the elbow structure molding method, small in volume and diversified in molding mode.
Inventors:
REN GUANGHUI (CN)
HUANG JINLING (CN)
WANG XINMING (CN)
ZHANG SHULIN (CN)
XU SHIPENG (CN)
HUANG JINLING (CN)
WANG XINMING (CN)
ZHANG SHULIN (CN)
XU SHIPENG (CN)
Application Number:
PCT/CN2020/097455
Publication Date:
December 30, 2021
Filing Date:
June 22, 2020
Export Citation:
Assignee:
YANTAI JEREH PETROLEUM EQUIPMENT &TECHNOLOGIES CO (CN)
International Classes:
E21B17/00; E21B17/02; E21B33/03; F16L43/02
Foreign References:
| CN111594059A | 2020-08-28 | |||
| CN102305324A | 2012-01-04 | |||
| CN201705318U | 2011-01-12 | |||
| CN204646988U | 2015-09-16 | |||
| CN2643128Y | 2004-09-22 | |||
| CN101780992A | 2010-07-21 | |||
| EP0018828A1 | 1980-11-12 |
Attorney, Agent or Firm:
YANTAI BINKING PATENT AGENT OFFICE (GENERAL PARTNERSHIP) (CN)
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