Pin pull-breakage type automatic grouting float valve

The invention discloses a pin pull-breakage type automatic grouting float valve. The float valve is characterized in that one end of a supporting rod is connected with a valve deck pin hinge base through a pin, and the other end of the supporting rod is connected with a valve body pin hinge base through a pin. The float valve is simple in structure, easy to machine and beneficial for part assembling and replacing. One end of the supporting rod is connected with the valve deck pin hinge base through the pin, and the other end of the supporting rod is connected with the valve body pin hinge basethrough the pin. The float valve is in a semi-opened state to form a fluid channel, and the automatic grouting aim is achieved. When a pump is turned on for circulation, pull-breakage is conducted onthe supporting rod, the valve is automatically turned off under the effect of a spring so that the effect of the check valve can be achieved. 本发明公开了种销钉拉折断式自动灌浆活门浮阀，其特征是支撑杆头与活门盖销钉铰链座用销钉连接，另头与阀体销钉铰链座用销钉连接。本发明结构简单，易于加工，便于组装和更换零配