Air-tightness detection fixture for car end connection piece

• Main Authors: ZHANG WEIYE, WANG HAILONG, ZHANG KUNRONG, ZHAO QIJIAN, LI GUOQING, HUANG ZUJIN
• Format: Patent
• Language: Chinese; English
• Published: 20.12.2019
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses an air-tightness detection fixture for a car end connection piece. The fixture comprises an air cylinder, a rack and a plugging device; an air cylinder connection plate is provided on a top of the rack; the air cylinder is provided on the air cylinder connection plate; a liftable air cylinder plate is provided below the air cylinder connection plate; an upper gas pipe headis provided on a top of the air cylinder plate; an air outlet of the air cylinder is connected to the upper gas pipe head; the plugging device includes a sealing washer and a plurality of plugging pieces; the sealing washer can be fixedly connected to a bottom of the air cylinder plate; a bottom plate is provided on the bottom of the rack; the plurality of plugging pieces are respectively disposedon the bottom plate; and the plurality of plugging pieces include the plugging pieces capable of lifting and the plugging pieces capable of moving along a horizontal direction and lifting. By adopting the fixture, the reliabi