Push rod device for preparing quartz glass preform rod by using sintered loose body

The invention discloses a push rod device for preparing a quartz glass preform rod by using a sintered loose body. The push rod device comprises a push rod main body, a fixed body and a connecting head, wherein a water inlet passage and a water outlet passage are arranged on the push rod main body, and the water inlet passage is isolated from the water outlet passage; a water inlet and a water outlet are formed in the fixed body, the water inlet is communicated with the water inlet passage, and the water outlet is communicated with the water outlet passage; the push rod main body is rotatably connected with the fixed body; the interior of the lower part of the push rod main body has a cavity structure which is separated into two semi-cylindrical spaces by a clapboard in the same direction as the axial direction of the push rod main body, the lower parts of the two semi-cylindrical spaces are communicated with each other, and the upper parts of the two semi-cylindrical spaces are respectively communicated with the water inlet passage and the water outlet passage; and the connecting head for connecting the sintered loose body is arranged at the lower end of the push rod main body. The push rod device disclosed by the invention is low in processing difficulty, high in processing precision and low in damage rate, overcomes the defect of high maintenance cost of a conventional quartz glass push rod, and improves the reliability and economical efficiency of a sintered loose body device.