公开(公告)号：US20130001452A1

公开(公告)日：2013-01-03

申请号：US13497988

申请日：2010-11-04

申请人： Sadayuki Nakazato ,  Tetsuya Kimura ,  Yoshiaki Fujiu

发明人： Sadayuki Nakazato ,  Tetsuya Kimura ,  Yoshiaki Fujiu

IPC分类号： F16K25/00

CPC分类号： B22D17/145 ,  B22C9/067 ,  F16K3/26

摘要： Provided is a vacuum valve device which is capable of ensuring and maintaining smooth operation of a valve body, and in which an adequate space is ensured as a vacuuming gas flow path, and also provided is a vacuum die-casting device using the vacuum valve device. The vacuum valve device includes a piston rod and a rod seat. The piston rod includes: a rod; a piston formed at one end of the piston rod; and a guide part extending from the piston as far as the rod towards the other end of the piston rod. The rod seat has an insertion hole into which the piston rod is inserted from a first end of the insertion hole and through which the piston rod passes to a second end of the insertion hole. At least a portion of the insertion hole including the first end of the insertion hole forms the gas flow path. The piston is inserted into the first end of the insertion hole when the gas flow path is closed, and the piston is exposed outside of the insertion hole with a portion of the guide part inserted into the first end of the insertion hole when the gas flow path is opened.

摘要翻译： 提供一种真空阀装置，其能够确保并保持阀体的平稳运行，并且其中确保作为真空气体流路的适当空间，并且还提供了使用真空阀装置的真空压铸装置 。 真空阀装置包括活塞杆和杆座。 活塞杆包括：杆; 形成在活塞杆的一端的活塞; 以及从活塞延伸到活塞杆的另一端的导杆部分。 杆座具有插入孔，活塞杆从插入孔的第一端插入活塞杆中，活塞杆穿过该插入孔到达插入孔的第二端。 包括插入孔的第一端的插入孔的至少一部分形成气体流路。 当气体流路闭合时，活塞被插入到插入孔的第一端中，并且当气体流动时，活塞暴露在插入孔的外部，当引导部分的一部分插入插入孔的第一端时 路径打开