Plug-in type pipe joint sealing device driven by magnet

The invention discloses a magnet-driven plug-in type pipe joint sealing device. The magnet-driven plug-in type pipe joint sealing device comprises an outer pipe, an inner pipe and a sealing ring, a groove is formed in the end of the inner pipe, and the radial section of the groove is large inside and small outside. The sealing ring comprises a body, a boss, a raised head, a sealing skirt edge and a plurality of metal strips; the end face of the body is provided with an annular arc-shaped groove, and the sealing skirt edge is provided with an outer conical surface. The metal strips are made of ferromagnetic materials, each metal strip comprises a front main body section, a middle straight section, a tail end straight section and a closing ring which are connected, the front section of the front main body section is arranged in the body and the sealing lip edge, and the rear section of the front main body section, the middle straight section, the tail end straight section and the closing ring are arranged in th