| 摘要 |
A drip annunciator comprises a main body and a needle bottle capable of inserting into a drip bottle for outputting liquid. A buoyancy body is received in the needle bottle, which may move with the liquid level. The bottom of the buoyancy body is installed with a magnet and a magnetic sensor on a control rod at the lower side thereof. Thus, as the liquid level within the drip bottle has descended to a predetermined position, the magnet will actuate the magnetic sensor to be electrically conducted, and then the buzzer at another side emits an alarm or lights up an alarm light so inform one to update the liquid therewithin. Meanwhile, a rolling ball will seal the liquid opening to prevent air to flow inwards so as to safeguard the life of a patient. Besides, another soft tube can be disposed between the liquid transferring tube and the needle bottle, and an adjusting wheel and a screw rod screwedly through the central screw hole and having a tightening block are installed aside. When the adjusting wheel is rotated so that the tightening block to press the soft tube at different level, the output of the liquid is controlled.
|
