Water-proof bottom support embedded in middle-layer top plate of sewage treatment plant

The utility model provides a sewage treatment plant middle-layer top plate embedded type waterproof bottom support which comprises a waterproof component, a top supporting rod is installed on the upper portion of the waterproof component, and a base is installed on the lower portion of the waterproof component. The waterproof component comprises a sleeve and a water stop ring on the outer side of the sleeve, and a water stop strip is installed on the outer edge of the water stop ring. A middle cross brace structure is arranged in the sleeve corresponding to the position of the water stop ring; a jacking rod connecting part is arranged at the lower end of the jacking rod, the base comprises a base body and a base connecting part at the upper end of the base body, and a bottom plate is arranged at the lower end of the base body; operation holes are formed in the lower end face of the base. The problem that a traditional bracket is poor in waterproofness is effectively solved, the embedded waterproof bottom supp