Control device for retractable valve of loader-digger

The invention discloses a control device for a retractable valve of a loader-digger. The control device comprises a pedal, a support, a hinge pin, a fork joint, a pull rod, a ball angle and a connecting plate. The pedal is fixed to the support. The support is formed by welding a circular pipe, a U-shaped plate and an angle block, wherein the U-shaped plate and the angle block are welded to the front and rear portions of the two sides of the circular pipe. The support and the connecting plate are connected through the hinge pin, and one end of the hinge pin is limited through a cotter pin. The ball angle is arranged on the angle block of the support. One end of the pull rod is connected with the ball angle, and the other end of the pull rod is provided with the fork joint used for being connected with a valve rod. By means of the control device, the loader-digger can adapt to more working conditions, and the device is simple in structure, convenient to install and high in reliability. The support is formed by