Sampling aid for glass sampling tube and application method thereof

The invention discloses a sampling aid for a glass sampling tube and an application method thereof. The sampling aid comprises a rubber tube, a casing cap and a casing. The outer wall of the glass sampling tube is sleeved with the casing; the head of the glass sampling tube is connected with the rubber tube through the casing cap; the front of the casing cap fits the inner wall of the rubber tube; the middle of the casing cap fits the head of the glass sampling tube; the rear of the casing cap fits the outer wall of the casing. By the connection via the casing cap, the problem that the same rubber tube is difficult to connect with an air sampling pump and the glass sampling tube; operating is simple, putting the glass sampling tube into the casing is just required before tightening, and no hand injury is caused; during sampling the sampling aid never falls or scratches a sampler.