Elastic double-sealing sleeve for valve

The invention discloses an elastic double-sealing sleeve for a valve. The elastic double-sealing sleeve comprises a sleeve body, a fixing mechanism at the bottom end of the sleeve body and a limitingmechanism at the top end of the sleeve body, the fixing mechanism comprises a rubber ring, the rubber ring is arranged at the bottom end of the sleeve body, a rotating ring is arranged in the middle of the sleeve body, a limiting spring is arranged inside the rubber ring, a limiting column is arranged at the bottom end of the limiting spring, a limiting rope is arranged at the position, corresponding to the limiting spring, of one side of the limiting column, and an inner barrel is arranged at the position, corresponding to the interior of the sleeve body, of the interior of the limiting column; and the rubber ring is arranged, so that the sealing performance of the sleeve is effectively increased, the sealing performance is good after connection and fixation of the sleeve, liquid leakageis reduced, only a rotatin