Buried scalable buried gate, also called soft sealing valve, the valve can be directly buried in the ground, not assembled manhole, reducing the area of ??road excavation; the well can be kept very small surface appearance, reduce the difficulty of construction, reducing project cost. Buried retractable soft sealing valve points and fine tuning fixed units, which was divided telescopic metal type and plastic type. During the construction process, it can be used for a wide range of telescopic valve buried according to the distance between the depth and the ground be adjusted to fine-tune the fixed field-fine adjustment. Buried soft sealing valve leakage has long-term use, maintenance, etc., can effectively prevent others to freely switch valve and theft covers.