Hydraulic pressure stripping device for large bore fiberglass reinforced plastic pipes

• Main Authors: SUN QINGTANG, GUO DEYOU
• Format: Patent
• Language: Chinese; English
• Published: 13.01.2010
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The utility model relates to a hydraulic pressure stripping device for large bore fiberglass reinforced plastic pipes, which comprises support shafts, a mandrel, a tail shaft and a connecting sleeve, wherein the mandrel is sleeved on the support shafts, sealing heads fixed on the internal walls at the front end and the rear end of the mandrel are respectively connected with the support shafts, the rear end of the mandrel is movably engaged with the front end of the tail shaft, the tail shaft is sleeved on the support shafts, sealing heads fixed on the internal walls at two ends of the tail shaft are respectively movably engaged with the support shafts, the sealing heads of the mandrel and the sealing heads of the tail shaft form an airtight cavity, the connecting sleeve, a mould combination block and a hoop are sequentially sleeved on the mandrel from the rear end to the front end, a sealing head of the hoop is fixed onto the mandrel through a screw, bolt holes are axially arranged on the pipe wall of the hoo