Patent ID: 7481613
Filing Date: 2009-01-27
Classification: F04D,Y10S

Abstract:
1. A water pump comprising: a body, having a separating board for defining an upper space and a lower space in the body, a bearing mounted on the separating board; a rotating device, mounted in the upper space and having a shaft on the middle portion of the rotating device, the shaft penetrating through the bearing for rotation, a lower contacting element mounted below the bearing and being capable of contacting a bottom end of the shaft; a driving device, mounted in the lower space; an O-ring; an upper cover, fixed on the body by the O-ring and glue, having an inlet pipe, an outlet pipe, and an upper contacting element, the upper contacting element being in contact with a top end of the shaft; and a bottom cover, fixed under the body; wherein the upper contacting element and the lower contacting element are made of a waterproof and rustproof; and wherein the separating board has a shaft tube, the shaft tube has a slot on the bottom of the shaft tube, the bearing is disposed in the shaft tube, the lower contacting element is disposed in the slot, and the shaft passes through the shaft tube.