Quartz negative pressure tube sealing performance detection device

The invention relates to the technical field of quartz negative pressure tube detection, and discloses a quartz negative pressure tube sealing performance detection device, which comprises a detection box and supporting legs, and is characterized in that a blocking mechanism is arranged in the detection box, and the blocking mechanism comprises an electric telescopic rod, a bearing plate, a telescopic rod, a placement plate and a supporting rod; the top of the electric telescopic rod is connected with the bottom of the bearing plate. The two ends of the quartz negative pressure pipe can be quickly and conveniently blocked through the blocking mechanism, the position of the quartz negative pressure pipe can be quickly and conveniently adjusted, the blocking head can be driven to block the quartz negative pressure pipe, after detection is completed, the blocking head can be automatically pulled out of the quartz negative pressure pipe, and resetting and locking can be automatically conducted; the quartz negativ