Profiling valve for rice transplanter

The invention discloses a profiling valve for a transplanter. Valve comprising a valve body, wherein the oil inlet is formed in the valve body; wherein the three-position four-way manual slide valve is arranged on the valve body, the slide valve inlet is communicated with the oil inlet, the slide valve outlet is communicated with the oil return port, the slide valve oil cylinder oil port is communicated with the oil cylinder interface, the slide valve working interface is communicated with the oil return port, and the overflow valve is communicated with the oil inlet. Wherein the two-positiontwo-way electromagnetic valve is arranged on the valve body and located between the oil cylinder connector and an oil port of the sliding valve oil cylinder, the throttling valve is arranged in the valve body and located between the oil return port and the sliding valve working connector and used for controlling the descending speed of the oil cylinder, and the two-position two-way unloading valveis arranged in the valve