Title:
伸縮可撓継手構造と耐震補修弁
Document Type and Number:
Japanese Patent JP6963947
Kind Code:
B2
Abstract:
To provide a telescopic flexible joint structure which is configured to connect one connection side and the other connection side in a sealed state while presenting telescopic flexibility and capable of blocking mutual rotation through one action while maintaining sealability and the telescopic flexibility after connection parts are connected with each other, and an earthquake-proof repair valve.SOLUTION: Paired tubular connection parts 21 and 31 are mutually connected with each other in a telescopic flexible state via an annular seal material 24. A stopper 22 is fitted from the outside to a clearance between the paired connection parts in a freely removable manner. The stopper 22 includes a lock part 80 which is locked to one connection part 21, and an engage part 83 which is engaged to the other connection part 31. The connection parts are connected with each other in a state where mutual rotation is blocked, while maintaining the telescopic flexibility via the stopper 22.SELECTED DRAWING: Figure 2
Inventors:
Kuretake Kenji
Application Number:
JP2017178012A
Publication Date:
November 10, 2021
Filing Date:
September 15, 2017
Export Citation:
Assignee:
Shimizu Alloy Co., Ltd.
International Classes:
F16L27/12; F16K27/00
Domestic Patent References:
| JP2015190614A | ||||
| JP2010190308A | ||||
| JP2005291440A |
Attorney, Agent or Firm:
Tetsuo Kobayashi