High-density polyethylene (HDPE) pipe airtightness testing device and using method thereof

The invention provides an HDPE pipe airtightness testing device and a use method thereof, and the testing device comprises a sealing rubber ring, a sealing joint, a gland, an elastic ring, and a wallboard buckle. A disc is arranged in the middle of the sealing joint, and circular ring joints are arranged at two ends of the disc and are integrally formed; an inflating valve is arranged on the sealing joint; a ring joint at one end of the sealing joint is sleeved with a sealing rubber ring; a circular ring joint at the other end of the sealing joint is matched with a gland; an opening is formed in the middle of the gland; and the elastic ring is fixed with the gland through the wallboard buckle. The use method comprises the following steps: connecting the pressure gauge to the socket end of the HDPE pipe provided with the inspection device through the inflating valve; the method comprises the following steps: connecting a bellmouth end of an HDPE pipe provided with an inspection device with an inflating device