Title:
PROTECTION APPARATUS FOR PIPE WELDING BEVEL
Document Type and Number:
WIPO Patent Application WO/2018/223277
Kind Code:
A1
Abstract:
A protection apparatus for protecting a pipe bevel during transportation, storage and loading of pipes, comprising a protection hood and a fast opening connection member, the protection hood enveloping an end bevel of a pipe requiring protection, and the fast opening connection member being connected to the pipe in a sealed manner. The protection hood comprises a cover plate (1) and a connecting end on the protection hood, and the fast opening connection member comprises a connecting end fixed on an outer wall of the pipe, a washer (4) and a sealing component. The connecting end on the protection hood comprises an upper snap disc (2), the connecting end fixed on an outer wall of the pipe comprises a lower snap disc (5), and the sealing component comprises a snap hoop (3). Nitrogen charged inside the pipe can be held therein for drying and the pressure of the nitrogen charge is regulated by a pressure gauge inside a connecting pipe. The apparatus protects the bevel of a pipe to be welded during transportation, storage and loading without colliding and causing wear, and also prevents foreign substances entering the pipe and contaminating the pipe; is convenient to detach, reducing installation labour; and can be repeatedly detached and can be reused for pipes of the same diameter, saving on materials.
Inventors:
DING JIA (CN)
Application Number:
PCT/CN2017/087251
Publication Date:
December 13, 2018
Filing Date:
June 06, 2017
Export Citation:
Assignee:
AIR LIQUIDE (FR)
DING JIA (CN)
DING JIA (CN)
International Classes:
B65D59/00; E04G1/30
Foreign References:
| CN205976567U | 2017-02-22 | |||
| CN204197595U | 2015-03-11 | |||
| CN101412452A | 2009-04-22 | |||
| CN104369977A | 2015-02-25 | |||
| JP2001199469A | 2001-07-24 | |||
| JP2003322291A | 2003-11-14 | |||
| US20100200102A1 | 2010-08-12 |
Attorney, Agent or Firm:
SUNSHINEIP INTELLECTUAL PROPERTY LAW FIRM (CN)
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