Animal husbandry oral cavity dilator for animal husbandry and veterinary medicine

The utility model discloses an animal husbandry oral cavity dilator for animal husbandry and veterinary medicine. The animal husbandry oral cavity dilator comprises a dilator handle, a dilator sliding rod, a dilator sliding block, a first dilating plate, a second dilating plate, a front end mounting block, a diagonal draw bar mechanism and a central draw bar mechanism, the rear end of the spreader sliding rod is connected with the spreader handle, the front end of the spreader sliding rod is connected with the front end installation block, the spreader sliding block is provided with a through hole matched with the spreader sliding rod, and the spreader sliding block is installed on the portion, between the spreader handle and the front end installation block, of the spreader sliding rod in a sliding and penetrating mode. The diagonal draw bar mechanism comprises a first diagonal draw bar mechanism and a second diagonal draw bar mechanism; and the spreader handle, the spreader sliding rod and the front-end mou