Safety device for preventing toxic gas leakage

The invention relates to the technical field of safety devices, and discloses a safety device for preventing toxic gas leakage. The safety device comprises a conveying pipe and a connecting pipe, andthe opposite ends of the conveying pipe and the connecting pipe are communicated with each other through a connecting ring. The upper and lower portions of the conveying pipe and the connecting pipe are sleeved with two clamping sleeves, the two ends of the two clamping sleeves are fixedly connected with semicircular plates, the side walls of the semicircular plates are provided with semicirculargrooves matched with the conveying pipe and the connecting pipe, and the outer walls of the two sides of the clamping sleeves and the semicircular plates are fixedly connected with clamping plates. The clamping plates at the two ends of the same side are sleeved with the same clamping frame, wherein the inner wall of the clamping frame and the side walls, close to the inner wall of the clamping frame, of the two clamping p