The utility model discloses an
elbow air tightness detection device, which comprises a
water storage tank, a moving plate is slidably connected in the
water storage tank, a plurality of
water leakage grooves are formed in the upper surface of the moving plate, a moving structure is arranged in the
water storage tank, two first fixing plates are fixedly connected to the upper surface of the moving plate, and a plurality of second fixing plates are fixedly connected to the upper surface of the moving plate. And two fixing assemblies are arranged above the two first fixing plates. According to the device, the fixed column, the first
threaded rod, the second
servo motor, the moving block, the blanking cap, the air
pipe and the like are arranged, two worm wheels drive the corresponding rotating rods to rotate through the rotating column, the rotating rods drive the clamping plates to move through the clamping blocks, and rubber pads on the clamping plates are clamped on the two sides of an
elbow; then a second
servo motor drives a moving block to move through a first
threaded rod, the moving block drives a corresponding blocking cover to block the two ends of the
elbow, the elbow is sealed and fixed, manual operation of workers is not needed, time is saved, and the detection efficiency is improved.