Gravity-type atmospheric dry chamber

A gravity-type atmospheric dry chamber is provided with a chamber body, wherein the chamber body is a steel-structured box-shaped body with an opening at the upper end, and the front surface and the bottom of the chamber body are respectively provided with an air-tight door. The gravity-type atmospheric dry chamber is characterized in that both sides of the lower end of the chamber body are respectively provided and connected with an anti-sinking plate which is perpendicular to the chamber body, and the anti-sinking plates are connected with the chamber body by reinforcing rib plates. The invention has the advantages of simple structural design, short positioning time, convenient and rapid disassembly, high working stability, and high safety and reliability; the chamber body provides a dry working environment for pipeline maintenance work, so that operators can do normal welding work in the dry chamber; the chamber body can be quickly installed and bottomed without the restrictions ofwater areas and working s