The utility model relates to a machine image acquisition technical field specifically is a cracking porcelain insulator image acquisition device, including the casing, the casing is the shell structure of curved surface for upper portion, the both sides of casing respectively are equipped with two sets of the same separation blades, and the cross section of four group's separation blades is the semiellipse and appears, be equipped with anyhow four crossing group's baffles in the casing, and fill between the baffle outside and the casing and have sealing rubber, inner chamber that partition plate group becomes be the component case, makes the image acquisition device can be at free rotation under the motor acts on through the transmission structure who uses sector gear to come the centre gripping on the iron tower through the clamp splice, under the effect of spring, can make the installation more firm, through filling sealing rubber, and set up curved upper cover, separation blade and lens cap and reach waterproof effect, realize unable waterproof, wide visual angle of realizing of general image acquisition device and firm installation characteristic.