Title:
配管構造及び通気弁
Document Type and Number:
Japanese Patent JP6738298
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a piping structure in which a blockage device or a vent valve is firmly fixed to a piping material in a manner that it can be quickly and easily attached and detached.SOLUTION: A piping structure 10 includes a cylindrical portion 13 extended in an axial direction to form a communication passage opened to the external and communicating the inside and outside of a piping material 11, and a blockage device 100 is mounted on an opening portion of the cylindrical portion 13 to block the communication passage. The blockage device 100 includes a main body portion 110 inserted into the cylindrical portion 13, and having a peripheral wall 111 axially extended along an inner peripheral face of the cylindrical portion 13, a blockage portion 120 disposed at an inner side of the peripheral wall 111 and blocking the communication passage, and a screw rest portion 114 formed on an outer face of the main body portion 110 in opposition to an inner peripheral face of the cylindrical portion 13 at a prescribed interval. A groove portion is formed between the screw rest portion 114 and the inner peripheral face of the cylindrical portion 13 opposed to the screw rest portion 114, a screw 150 is screwed into the groove portion 13, and the main body portion 110 is fixed to the cylindrical portion 13.SELECTED DRAWING: Figure 11
Inventors:
Atsushi Nakamura
Application Number:
JP2017063142A
Publication Date:
August 12, 2020
Filing Date:
March 28, 2017
Export Citation:
Assignee:
Mirai Industry Co., Ltd.
International Classes:
F16K24/06; E03C1/12; E03C1/122; F16L55/07
Domestic Patent References:
| JP2011137330A |
Foreign References:
| US4221233 | ||||
| US6761183 | ||||
| US5048562 |
Attorney, Agent or Firm:
Hiroe Associates Patent Office