| 摘要 |
PURPOSE: An automatic compressed gas injection assembly and a lifebelt using the same are provided to automatically expand the body of a lifebelt in emergency and to facilitate the storage and wear of the lifebelt in normal times. CONSTITUTION: An automatic compressed gas injection assembly comprises a gas storage part(130) storing compressed gas. The expansion pressure of an absorbing substrate expanded by contacting with water perforates the gas storage part to inject compressed gas. The automatic compressed gas injection assembly comprises a cylinder(150), a piston(160), and a perforating needle(170). The gas storage part is coupled to one side of the cylinder and accommodates the absorbing substrate. The piston is arranged between the gas storage part and the absorbing substrate inside the cylinder. The perforating needle perforates the gas storage part while the piston moves toward the gas storage if the absorbing substrate is expanded by the contact of water. |
