Patent ID: 7861739

Claim:
A hydraulic pressure damping device, comprising: a valve body provided with a water inlet conjoint with a water outlet of pipeline; the valve body being separately provided with a joint port that is conjoint with the water inlet and provided with the water outlet; a control valve of which one end is provided with a first joint and another end is provided with a second joint; a waterway being axially provided passing through the first joint and the second joint, in which the first joint is conjoint with the joint port to valve a switch between the water inlet and the water outlet; a hydraulic pressure damper being fixed onto the second joint and communicating with the water inlet through the waterway; a blocking wall is formed between the water inlet of valve body and the joint port; an inner thread is formed around an annular surface of the joint port; a water blocking ring is provided at the front end of first joint; and a spirally conjoint section is formed over the first joint to be conjoint with the inner thread of water inlet.