External liquid level observation device for buffer pool

The utility model discloses an external liquid level observation device for a buffer pool, which realizes the monitoring of the liquid level of the buffer pool and achieves the purpose of improving the operation safety by using a mechanical assembly with simple structure and lower maintenance cost, and is characterized in that a circular box body is welded on the inner wall of the buffer pool, a pressure plate is movably arranged in the box body, and a guide rod is fixedly arranged at the upper part of the pressure plate; an inverted T-shaped ejector rod is fixedly arranged at the lower part of the pressure plate; the lower part of the ejector rod is fixedly connected with a floating ball; a shaft seat is fixedly arranged on the upper surface of a buffer pool, a fan-shaped gear is movablysleeved on a shaft penetrating through the shaft seat, a rack is arranged on the upper portion of the fan-shaped gear, the rack is transversely connected with an extension rod, and a graduated scale is arranged at the tail en