Welded concave buoyancy tank base

The embodiment of the invention discloses a welded concave buoyancy tank base. The welding type concave buoyancy tank base is arranged at the bottom of a ship buoyancy tank and used for placing the buoyancy tank on a placement face of a moving device, and a positioning groove is formed in the bottom of the buoyancy tank. The welded concave buoyancy tank base is simple in structure and easy to machine, and the problems that a buoyancy tank is not easy to position and easy to slip in the transportation process can be effectively solved. 本发明实施例公开了一种焊接型凹式浮箱底座。本发明的焊接型凹式浮箱底座，设置于船舶浮箱的底部，用于将浮箱放置于移动装置的搁置面上，所述浮箱的底部设有定位凹槽。本发明的焊接型凹式浮箱底座结构简单、易于加工，可以有效地解决浮箱在运输过程中不易定位、容易滑脱的问题。