| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pump capable of reducing cost of a metal mold for molding a casing and facilitating a molding process of the casing, and to provide a cleaning device having the pump. <P>SOLUTION: The pump 1 comprises: the casing 20 the inside of which serves as a pump chamber 2, and which has a suction port 3 for sucking liquid into the pump chamber 2, and a discharge port 4 for discharging the liquid from the inside of the pump chamber 2; and a pair of gears 5, 6 which are arranged in the pump chamber 2 in parallel with each other and engaged with each other. In the suction port 3 and the discharge port 4, portions at the side of the pump chamber 2 from the middle of axial directions of the ports are diameter-expanded parts 3a, 3b which are expanded in diameter as progressing toward the side of the pump chamber 2. The casing 20 is formed by connecting a first casing body 21 constituting circumferential front half sides of the diameter-expanded parts 3a, 4a, and a second casing body 22 constituting circumferential rear half sides of the diameter-expanded parts 3a, 4a. <P>COPYRIGHT: (C)2013,JPO&INPIT |
