| 主权项 |
1. An inflatable device, comprising:
a carcass defining a surface of the device and surrounding an inner volume of the device, and having an opening; and an internal air intake mechanism assembly, which comprises a primary one way valve mechanism joined to the carcass to cover the opening, the primary one way valve mechanism extending into the inner volume and being configured for enabling air to be directed into the inner volume from an environment external to the carcass, while preventing or limiting air flow from the inner volume to the external environment; wherein the carcass includes a tube extending into the inner volume, the tube having an inner opening within the inner volume and an outer opening corresponding to the opening of the carcass, such that the inner volume is in fluid communication with the external environment via the tube; wherein the primary one way valve mechanism is located within the tube, is sealingly joined to an inner surface of the tube, and is configured for enabling air to be directed into the inner volume from an environment external to the carcass via the tube, while preventing or limiting air flow from the inner volume to the external environment via the tube; wherein the primary valve mechanism is recessed within the tube, leaving a hollow space between the outer opening of the tube and an edge of the primary one way valve mechanism; wherein the air intake mechanism assembly comprises a retractable mechanism located in the hollow space between the outer opening of the tube and the edge of the primary one way valve mechanism, the retractable mechanism being a channel having two openings and being slidable along the inner surface of the tube, to protrude into the external environment from the tube's outer opening. |
