Circuit breaker sleeve

The utility model discloses a sleeve. The sleeve includes a sleeve body, and is characterized in that the sleeve body is provided with a horizontally communicated cylindrical cavity, a left part of the sleeve body is a hollow cylinder, a right body of the sleeve body is a hollow hexagonal cylinder, the cylinder and the hexagonal cylinder are a whole, a joint of the cylinder and an outer surface of the hexagonal cylinder is provided with an inclined plane, the diameter of an inscribed circle of the hexagonal cylinder is larger than that of the cylinder, an inner surface of the cylinder is provided with an inner groove, an outer surface of the cylinder is provided with an outer groove. The sleeve provided by the utility model is attractive in appearance, simple in structure, convenient to install, and good in sealing performance.