An air-tightness testing instrument for a motorcycle
damper cylinder comprises air cylinders (1). A lower detecting board (3) is fixed on a
workbench (2), lower plugs (4) are fixed on the lower detecting board (3), and barometers (5) are fixed on the
workbench (2) and are communicated and connected with central holes of the lower plugs (4). An upper detecting board (6) is arranged on a linear sliding rail (7) in inserted and sleeved
modes, the air cylinders (1) are fixed on the
workbench (2), and
piston rods of the air cylinders (1) and the upper detecting board (6) are fixed together. An air collecting
pipe (8) is fixed on the upper detecting board (6), air inflation nozzles (9) are communicated and connected with the air collecting
pipe (8), the air collecting
pipe (8) is communicated and connected with an air pressure
station, and each air inflation
nozzle (9) faces one lower plug (4). According to the air-tightness testing instrument for the motorcycle
damper cylinder, the motorcycle
damper cylinder is not steeped into water to carry out air-tightness detection any more, detection accuracy is high, and the damper cylinder can be prevented from being damaged by
water erosion.