Reinforced mechanical seal used for frequent starting and slightly slow deformation

The reinforced mechanical seal comprises a shaft body, a shaft sleeve assembly is arranged on the outer side of the shaft body, a sealing gland assembly is arranged on the outer side of the middle of the shaft sleeve assembly, and a floating ring assembly is arranged on one side of the sealing gland assembly and on the outer side of the middle of the shaft sleeve assembly. A rotating ring assembly is arranged on one side of the floating ring assembly and the outer side of the middle of the shaft sleeve assembly, a gland fixing ring is arranged on the outer side of the sealing gland assembly, and the gland fixing ring is arranged at one end of the sealing cavity. The rotating friction is eliminated when the speed is not enough to cause sealing leakage; water in the sealed cavity does not leak out of the pump body no matter the pump is in operation or static; circulating cooling of water in the mechanical seal cavity is achieved, and it is guaranteed that the mechanical seal works in a good environment. 本发明提供了一