Ball valve having actuator of blow out prevention

Abstract

A ball valve having an actuator of blow out prevention includes a valve body, actuator, and a ball. The valve body has a valve chamber inside thereof and a passageway, top bore, bottom bore extending from the valve chamber. The actuator has a connection portion penetrating through the top bore to the valve chamber, the connection portion has a round groove and a C-shaped buckle. The actuator serves to be rotated by an external driver. The ball inside the valve chamber serves to control the flow of the valve chamber. The ball has a connection hole engaging the connection portion of the actuator. The C-shaped buckle retains the actuator connected to the ball through buckling the round groove of the connection portion receiving inside the connection hole of the ball so that the actuator will not blow out by the pressure of the valve during a damage or maintenance.

1 . A ball valve having an actuator of blow out prevention comprising:
 a valve body having a valve chamber, a passageway extending from the valve chamber, a top bore, and a bottom bore;   an actuator penetrating through the top bore into the valve body; the actuator connected to a valve driver to rotate the actuator; the actuator having a connection portion on an end thereof; the connection portion having a round groove;   a ball arranged inside the valve chamber; the ball having a spherical surface serving to open and close the linking between the passageway and the valve chamber; the ball having a connection hole receiving the connection portion of the actuator; and   a C-shaped buckle received into the round groove; an outer diameter of the C-shaped buckle being greater than a depth of the round groove;   wherein the connection portion of the actuator penetrates the top bore and the connection hole, and the round groove of the connection portion is positioned inside the ball and is buckled by the C-shaped buckle so as to retain the actuator from blowing out of the ball; since the outer diameter of the C shaped buckle is greater than a depth of the round groove of the actuator; an outer side of an upper surface of the C shaped buckle around the connection hole resists against an inner wall of the ball and an inner side of the upper surface of the C shaped buckle is confined within the round groove so that the actuator will not relief from the ball.   
     
     
         2 . The ball valve having an actuator of blow out prevention as claimed in  claim 1 , wherein the ball is a sphere or a hemisphere. 
     
     
         3 . The ball valve having an actuator of blow out prevention as claimed in  claim 1 , wherein the C shaped buckle is a 360 buckle having a slit penetrating through a buckle body and each of two sides of the C shaped buckle is expanded.