Flexible intelligent grouting head with accurate grouting amount

The flexible intelligent grouting head comprises a shell, the upper end and the lower end of the shell communicate with an upper pipe and a lower pipe correspondingly, a grouting head sleeve is assembled at the bottom end of the lower pipe, the upper pipe is connected with a grout inlet, a valve body device is arranged in the shell, and a flow adjusting device is assembled in the upper pipe; a grouting channel is formed in the middle of the shell and between the upper pipe and the lower pipe, a movable part in the valve body device is arranged in the grouting channel and moves under the action of magnetic attraction so as to achieve the effect of opening and closing the grouting channel, and the flow adjusting device is arranged on the upper side of the grouting channel. The flow adjusting device adjusts the distance between the flow adjusting device and the inner wall of the grouting channel through lifting movement of a movable part in the flow adjusting device so as to achieve flow control, the design is n