The utility model relates to an internal
oil type metal corrugated oil conservator, in particular to an internal
oil type metal corrugated oil conservator with a
positive pressure detection limiting device, which comprises an internal
oil type metal corrugated oil conservator and a limiting device arranged in the internal oil
type metal corrugated oil conservator, and the internal oil
type metal corrugated oil conservator comprises a base, a conservator cover and a corrugated core body, the limiting device is installed on the two sides of the corrugated core body and comprises an upper limiting sleeve, a pressing block, a rotating shaft, a supporting sleeve, a lower limiting sleeve, a
handle and a check ring, the upper limiting sleeve and the lower limiting sleeve are welded to the upper end and the lower end of the rotating shaft respectively and rotate along with the rotating shaft, the pressing block and the upper limiting sleeve are fixed together, and the supporting sleeve is located on the lower portion of the check ring in the middle of the rotating shaft and used for supporting the rotating shaft. The
handle is located at the lowermost end of the rotating shaft. By rotating the
handle of the limiting device, the pressing block limits expansion of the corrugated core body,
positive pressure sealing detection can be carried out, the handle is rotated again after detection to enable the pressing block to be separated, normal movement of the corrugated core body is not affected, the structure is simple, and operation is convenient.