EARTHQUAKE-PROOF REPAIR VALVE

• Main Authors: KAWASAKI KOICHI, KURETAKE KENJI
• Format: Patent
• Language: English; Japanese
• Published: 25.08.2023
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

To provide an earthquake-proof repair valve capable of preventing a component of a repair valve main body from being damaged in a case where the earthquake-proof repair valve is suddenly flexibly extended/contracted, the earthquake-proof repair valve presenting earthquake-proofness by extension/contraction flexibility.SOLUTION: A flange part 21 is formed at a secondary side of a body 22 of a repair valve main body 10 and an insertion port 26 is formed at a primary side of the body 22, respectively. The insertion port 26 is fitted in a freely fitting state at an inner peripheral side of a holder 11 consisting of an annular push ring 41 and an annular socket member 40. An extension/contraction flexible mechanism mounting a stopper ring 44 and a rubber ring 48 between the insertion port 26 and the holder 11 is incorporated. A substantially cylindrical tilt correction jig 20 formed from an elastic material is mounted in a locked state between the flange part 21 and the holder 11. In a case where the repair valve main body 10 is flexibly tilted, the repair valve main body 10 is provided so as to be flexible extended/contracted while bending or damaging the tilt correction jig 20 and while absorbing shock by elasticity of the tilt correction jig 20, thereby suppressing a sudden flexible extending/contracting action of the repair valve main body 10.SELECTED DRAWING: Figure 2 【課題】伸縮可撓性により耐震性を発揮する耐震補修弁であり、急に伸縮可撓した際に補修弁本体の部品の損傷を防ぐことができる耐震補修弁を提供する。【解決手段】補修弁本体１０のボデー２２の二次側にフランジ部２１を、ボデー２２の一次側に挿し口２６をそれぞれ形成し、挿し口２６を環状の押輪４１と環状の受け口部材４０からなる保持体１１の内周側に遊嵌状態で装入し、挿し口２６と保持体１１との間に抜け止めリング４４とゴム輪４８を装着した伸縮可撓機構を内蔵し、フランジ部２１と保持体１１との間に弾性材料で形成した略円筒形状の傾き矯正治具２０を係止させた状態で装着し、補修弁本体１０が可撓して傾いた際に、補修弁本体１０が傾き矯正治具２０を撓ませ又は損傷させながら、傾き矯正治具２０の弾性により衝撃を吸収しつつ伸縮可撓可能に設け、急激な補修弁本体１０の伸縮可撓動作を抑制するようにした。【選択図】 図２