Excessive-filling preventing horizontal heat-insulating gas bottle

The invention discloses an excessive-filling preventing horizontal heat-insulating gas bottle. The excessive-filling preventing horizontal heat-insulating gas bottle comprises a front sealing head assembly (2), an inner cylinder (3) and a rear sealing head (4) which form an inner liner (1), and is characterized in that a compartment (5) is arranged on the upper portion of an inner cavity of the inner liner (1), and a small hole (6) is formed in the bottom of the compartment (5), and the small hole (6) is located in the upper side of the horizontal plane where the horizontal central axis of theinner liner (1) is located. The height of the horizontal plane where the small hole of the compartment is located is effectively increased, so that non-excessive filling is achieved when residual liquid phase media exist; for the horizontal heat-insulating bottle gas, the problem that excessive filling of an existing structure gas bottle is likely to occur when the arbitrary residual liquid phasemedia exist can be well solved; when the compartment is welded to the top of the liner, the advantage that a connecting weld joint bears uniform tensile stress and accordingly has the good force bearing condition is achieved; and the excessive-filling preventing horizontal heat-insulating bottle has the advantages that the structure is simple, the processing technology is simple and convenient, and the manufacturing cost can be saved, and is suitable for being used and popularized.