Interior peeping device of quenching furnace

The utility model provides a quenching furnace in-furnace endoscopic device, including: furnace wall, observation hole, extension tube, snap ring, water inlet, internal camera component, water outlet, electric telescopic column, cooling ring tube, sleeve and camera, the inside of furnace wall is provided with the observation hole, the electric telescopic column is installed on the left side of furnace wall lower end, the snap ring is installed on the outer side of the electric telescopic column, and the camera is installed on the outer side of the sleeve. An extension pipe is installed on the inner side of the upper end of the clamping ring, a water inlet is formed in the upper side of the left end of the extension pipe, a water outlet is formed in the lower end of the water inlet, an inner camera shooting assembly is installed in the extension pipe, and a sleeve is installed on the outer side of the inner camera shooting assembly. Compared with the prior art, the cooling device has the advantages that the in