| 摘要 |
The present invention refers to a cap for preventing demijohns from being refilled, avoiding problems of refilling demijohns by water purifier plants different from the original purifier plant, the invention comprising: a pressure differential attached to the lower portion of the container shell by thread; a seal with a flexible packing with a groove and a conical-shaped sealing element; a spherical-shaped loose weight, a flexible packing for the container shell, which is located between the mouth of the demijohn and the flat ring-shaped volume of the container shell; a shackle is attached to the flat circular base of the coupling, for example by being stuck; a latch is vertically displaced within a semi-cylindrical-shaped cavity upon thrusting the pin; a locking bolt prevents the latch from moving out of place; a microcontroller receives a password from an external control unit (the original purifier plant) for activating a resistance that heats the locking bolt and weakens the same so as to allow the latch to be moved to its open position; a cover for covering the coupling assembly, which is attached to the upper portion of the coupling by a thread.
|
