Valve rod sealing sleeve, valve and engine

The invention relates to the field of engines, and discloses a valve rod sealing sleeve, a valve and an engine. The valve rod sealing sleeve is used for sealing a valve rod in the valve and comprises a cylindrical framework and an elastic sealing body connected with the framework, wherein a sealing cavity communicating with the interior of the framework is formed in the elastic sealing body and used for installing the valve rod; one end of the elastic sealing body stretches out of the framework to form a first sealing part, and a first sealing lip is arranged at the end, deviating from the framework, of the first sealing part and used for being in interference fit with the valve rod; and a clamping groove is formed in the outer side of the first sealing part, a clamping ring is installed in the clamping groove, a second sealing lip is arranged at the position, corresponding to the clamping groove, of the inner side of the first sealing part, and the second sealing lip is located between the first sealing lip