Cut-off apparatus for medium in flow channel

• Main Authors: LI JINGHUA, DENG KEHONG
• Format: Patent
• Language: Chinese; English
• Published: 17.10.2012
• 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

The invention relates to a cut-off apparatus for a medium in a flow channel, comprising an ejection piece, a spacer and a support seat, wherein the ejection piece, the spacer and the support seat are arranged successively along medium flow direction. A through hole A, a through hole B and a through hole C for medium passing are respectively arranged on the support seat, the spacer and the ejection piece. The through hole B and the through hole C are staggered arranged. The ejection piece extends toward one side of the support seat and forms a push rod. A hole for push rod passing is arranged on the spacer, and the spacer forms an axial sliding match with the push rod. A limit structure is arranged between the ejection piece and the spacer, wherein the limit structure is used to limit circumferentially relative rotations of the ejection piece and the spacer. A position on the support seat is extended toward one side of the ejection piece and forms a bracing piece, wherein the position is corresponding to the p