Polytetrafluoroethylene plunger expansion sealing sampling valve

• Main Authors: ZHANG YI'EN, GUO LIHUAN
• Format: Patent
• Language: Chinese; English
• Published: 11.06.2024
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MEASURING; MECHANICAL ENGINEERING; PHYSICS; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; TAPS; TESTING; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The utility model relates to the technical field of sampling valves, and provides a polytetrafluoroethylene plunger expansion sealing sampling valve which comprises a sampling barrel, a connecting pipe is inserted in the position, close to the right end, of the rear side of the sampling barrel, a sampling bottle is connected to the rear end of the outer side of the connecting pipe in a threaded mode, and an exhaust pipe is inserted in the top of the connecting pipe. According to the plunger piston, the limiting rod, the telescopic spring, the pulling plate and the positioning rod are matched with one another, so that the position where the rotating wheel is restored can be clamped and limited conveniently, the plunger piston body stops moving at the target position, and finally the purpose of positioning is achieved; according to the sampling device disclosed by the utility model, the worm gear, the mounting block, the inserting rod, the fixing groove, the hand-cranking wheel, the limiting telescopic rod and