Fecha de publicación: 10/05/2019 Fuente: Wipo "digitalization" The invention discloses an unequal-wall-thickness ball-coated connecting rod. The unequal-wall-thickness ball-coated connecting rod comprises a ball socket and a connecting rod. The connecting rod comprises a connecting rod body and connecting rod ball heads. The connecting rod ball heads are arranged at the two ends of the connecting rod body. The ball socket comprises a ball socket body and a ball socket close opening, and the ball socket body surrounds the ball socket close opening. The connecting ball head at one end is mounted in the ball socket close opening, and the connecting rod ballhead at one end is wrapped by the ball socket close opening. The ball socket body is of an unequal-wall-thickness structure. The unequal-wall-thickness ball-coated connecting rod is applied to a waterpump with small flow and low pressure, has more stable performance, and can be applied to extreme working conditions, the situation that a ball-coated connecting rod disengages (a ball socket and a connecting rod disengage) is avoided, the stability of the water pump with small flow and low pressure can be greatly improved, the service life of the water pump with small flow and low pressure can be greatly prolonged, meanwhile, the unequal-wall-thickness ball-coated connecting rod is suitable for a water pump with large flow and high pressure, and therefore the stability and the service life of the product are guaranteed.