Quantitative essential oil dripping device

A quantitative essential oil dripping device (1), comprising:

• N sealed essential oil containers (40) configured to contain essential oil, wherein N is a positive integer greater than or equal to 1;
• N gas inlet tubes (4), of which gas outlets are inserted into the N essential oil containers (40) respectively;
• N oil outlet tubes (5), of which inlets are inserted into the N essential oil containers (40) respectively, wherein in each of the essential oil containers (40), the gas outlet of the gas inlet tube (4) is located above the inlet of the oil outlet tube (5);
• a gas pump (8) arranged at gas inlets of the N gas inlet tubes (4) and configured to fill the gas inlet tubes (4) with gas;
• a throttle valve (101) communicating the gas pump (8) with each of the essential oil containers (40) respectively;
• and
• a drip number detection module (10) configured to detect the drip number of the essential oil dripped from oil outlets of the N oil outlet tubes (5), the drip number detection module (10) comprises:
• a discharging constraint cover (12) with N drip hole passages (13) for insertion of and communication with the N oil outlet tubes (5);
• M groups of infrared ray pair tubes (14) which are arranged on the discharging constraint cover (12), correspond to drip outlets (21) of the N drip hole passages (13) in position, and are configured to detect essential oil drips, wherein M is a positive integer greater than or equal to 1;
• and
• a circuit board (22) electrically connected with the M groups of infrared ray pair tubes (14) and configured to perform counting.