Self-bonding air bag sealing device
A technology of airbag sealing and inner airbag, which is applied in shaft equipment, wellbore lining, tunnel lining, etc., can solve the problems of water leakage, mud leakage, on-site handling difficulties, and easy engineering accidents in the working well, so as to reduce the initial and The effect of reaching the risk, preventing water leakage, and enhancing the sealing effect
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[0022] See figure 1 , figure 2 As shown, the self-wrapped airbag sealing device 1 of the present invention is a ring-shaped device, which is arranged on the inner shaft wall of the tunnel working shaft close to the tunnel starting or reaching the portal, and its axis coincides with the axis of the portal , Which mainly includes a steel collar 10, a U-shaped composite cord rubber guard plate 20, and a rubber pressure inner airbag 30, which is sandwiched between the steel collar 10 and the U-shaped composite cord rubber guard plate 20 between.
[0023] Cooperate image 3 , Figure 4 As shown, the rubber pressure inner airbag 30 is an annular rubber airbag with a plurality of inlet / exhaust holes 31 provided.
[0024] Cooperate figure 2 , Figure 5 As shown, the steel collar 10 includes an annular bottom plate 11, which is fixed on the inner side wall of the tunnel working shaft close to the beginning of the tunnel or the side of the tunnel door. The outer edge of the annular bottom ...
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