Cow oral cavity dilator with light source

The invention discloses a cattle oral cavity dilator with a light source, and relates to the technical field of veterinary instruments, the cattle oral cavity dilator comprises an equipment body, a motor is fixedly connected in the equipment body, the output end of the motor is fixedly connected with a first rotating shaft, and a first worm is rotatably connected in the equipment body; the first worm is connected with the first rotating shaft through a clutch mechanism, a second rotating shaft is rotatably connected to the interior of the equipment body, and a first worm gear and an opening column are fixedly connected to the outer side of the second rotating shaft. And an electromagnet is automatically driven to be electrified, an iron block is adsorbed, a lifting column is controlled by a connecting rod to be stored in an inner cavity of a spring groove, and at the moment, a clutch mechanism is in a separated state, so that expansion of the oral cavity is finished, secondary injury to the oral cavity of a s