Air-permeable and impermeable natural sodium bentonite waterproof blanket

Abstract

The application relates to the field of waterproof blankets, and discloses a breathable and anti-seepage natural sodium-based bentonite waterproof blanket which comprises an upper waterproof blanket framework, the lower part of the upper waterproof blanket framework is connected with a lower waterproof blanket framework, and a plurality of air exhaust sealing devices are arranged between the upper waterproof blanket framework and the lower waterproof blanket framework; through the action of water absorption rubber, a first limiting block and an arc-shaped plate in the air exhaust sealing device, whether moisture exists in the upper part of a connecting pipe is detected, the lower part of the connecting pipe is sealed, the water absorption rubber is used for multiple times, the water absorption rubber loses the action, water vapor at the bottom of the lower waterproof blanket framework is completely exhausted, the limiting sealing piece can drive the connecting piece to ascend, the upper and lower parts of the connecting pipe are sealed, the problem that the waterproof blanket is inflated due to the existence of steam in soil during use is prevented, and the environment suitable for use of the waterproof blanket is improved.

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