Dumping-type autonomous quantitative liquid discharging device and quantitative liquid discharging method thereof

A dumping-type automatic quantitative liquid discharging device, comprising:

• an accommodating cavity for accommodating liquid, a first liquid storage cavity and a second liquid storage cavity for storing quantitative liquid, and a fluid channel;
• and
• wherein, said fluid channel sequentially communicates with said accommodating cavity, said first liquid storage cavity and said second liquid storage cavity, and defines a path for air and said quantitative liquid to enter and leave said device;
• and
• wherein a sum of volumes of said first liquid storage cavity and said second liquid storage cavity is smaller than a volume of said accommodating cavity, and said second liquid storage cavity further comprises a liquid storage part;
• and
• wherein, said first liquid storage cavity and said second liquid storage cavity are arranged at one end of said accommodating cavity;
• and when said device pours out liquid, said quantitative liquid stored in said second liquid storage cavity leaves said device through said fluid channel;
• and an atmospheric low pressure area is formed at the other end of said accommodating cavity, and an atmospheric normal pressure area is formed in said first liquid storage cavity and said second liquid storage cavity, so that said liquid is confined between said first liquid storage cavity and said accommodating cavity;
• and
• wherein said liquid storage part captures and stores a part of said liquid to become new said quantitative liquid;
• and
• wherein, when said device is reset, said quantitative liquid stored in said second liquid storage cavity will be received and stored by said first liquid storage cavity.

A quantitative liquid discharging method, comprising providing a dumping-type automatic quantitative liquid discharging device, wherein dumping-type automatic quantitative liquid discharging device comprises an accommodating cavity and a device cover for accommodating liquid, a first liquid storage cavity and a second liquid storage cavity for storing quantitative liquid, and a fluid channel;

• and
• wherein, said fluid channel sequentially communicates with said accommodating cavity, said first liquid storage cavity and said second liquid storage cavity, and defines a path for air and said quantitative liquid to enter and leave said device;
• and
• wherein, said first liquid storage cavity and said second liquid storage cavity are arranged at one end of said accommodating cavity;
• and when said device pours out liquid, the quantitative liquid stored in said second liquid storage cavity leaves said device through said fluid channel, and an atmospheric low pressure area is formed at the other end of said accommodating cavity;
• and an atmospheric normal pressure area is formed in said first liquid storage cavity and said second liquid storage cavity, so that said liquid is confined between said first liquid storage cavity and said accommodating cavity;
• and
• wherein said second liquid storage cavity captures and stores a part of said liquid to become new said quantitative liquid;
• and
• wherein, when said device is reset, said quantitative liquid stored in said second liquid storage cavity will be received and stored by said first liquid storage cavity;
• and
• pouring liquid into said accommodating cavity;
• and
• connecting said device cover with said accommodating cavity;
• and
• tilting said dumping-type automatic quantitative liquid discharging device to allow the quantitative liquid to flow out.