Liquid-gas identifier and infusion alarm adopting same

The utility model discloses a liquid-gas identifier for solving the technical problem that a traditional infusion alarm is troublesome in operation. The technical scheme of the utility model is as follows: the liquid-gas identifier is characterized in that an infusion pipe (5) penetrates through a base (2) and is arranged between a laser tube (6) and a receiving tube (7); and a dowel sequentially penetrates through a left clamping plate (1), a right clamping plate (4) and a torsion spring (3) and fixes the base (2). The utility model also discloses an infusion alarm adopting the liquid-gas identifier. The technical scheme of the utility model is as follows: the infusion alarm is characterized in that a liquid-gas identifier (10) is arranged on the infusion pipe (5) and is electrically connected with a buzz alarm box (11) through a signal cable (14). The utility model further discloses the buzz alarming box (11) which comprises the liquid-gas identifier; a power supply provides power for the liquid-gas identif