| 摘要 |
<p>A piston pump and a water purification device having the piston pump. The piston pump comprises: a valve body (1), the valve body (1) being provided with a cylinder; a piston (5, 6), one end of the piston (5, 6) being mounted in the cylinder; a rocker (2), the rocker (2) providing a driving force for reciprocating motion of the piston (5, 6), and being pivotally connected on the valve body (1). The piston (5, 6) comprises an exposed part extending out of the cylinder. The exposed part is provided with a groove (7, 8). The groove (7, 8) is provided with V-shaped protrusions (9, 10) on two inner sides in the axial direction of the piston (5, 6). Surfaces of the V-shaped protrusions (9, 10) are two planes in which the periphery of the piston (5, 6) is inclined inwards. The two planes intersect to form a line perpendicular to the axis of the piston (5, 6). The rocker (2) is inserted into the groove (7, 8). The piston pump has features of simple structure, easy installation, and reduced volume and weight.</p> |
