Fluid-floated conveying device

A liquid buoyancy vertical transport apparatus, comprising:

• a float configured to carry an associated article and be transported by liquid buoyancy;
• a water pipe filled with a liquid, in which the float is configured to rise;
• a space conversion chamber formed by a three-way conduit and having an upper port, a side port, and a lower port for selectively accommodating the float ball and the liquid;
• a first gate disposed at the upper port for selectively communicating the space conversion chamber with the liquid;
• a second gate disposed at the side port for selectively communicating the space conversion chamber with an atmospheric space;
• a water storage and pressurization cylinder fluidly connected to the lower port and configured to selectively draw liquid from the space conversion chamber for storage or refill stored liquid back into the space conversion chamber;
• and
• an air intake/exhaust conduit fluidly connected to an interior of the space conversion chamber, the conduit having an upper outlet located above the first gate, and the conduit being a single valve body configured to automatically perform air intake, air discharge, and liquid blocking,
• wherein, when the first gate and the second gate are closed, the water storage and pressurization cylinder draws substantially all liquid from the space conversion chamber to form a liquid-free cavity allowing the float to enter without resistance, and thereafter refills liquid and opens the first gate such that the float rises by buoyancy into the water pipe to complete vertical transport.