Ultra-micro volume metering type dispensing valve and mounting seat

The invention relates to the technical field of dispensing equipment, and discloses an ultramicro volume metering type dispensing valve and a mounting seat. The ultra-micro volume metering type dispensing valve comprises a valve body, a feeding mechanism and an extrusion mechanism arranged in the valve body, an inner cavity is formed in the valve body, a hollow nozzle is arranged on the side, close to the inner cavity, of the valve body, a first through hole penetrating through the valve body is formed between the inner cavity and the nozzle, and a second through hole penetrating through the valve body is formed in the inner cavity. The inner cavity is communicated with the first through hole, and the nozzle is communicated with the first through hole; the feeding mechanism provides glue; the extrusion mechanism comprises a valve rod, a piezoelectric assembly and a pushing assembly outputting linear motion, the piezoelectric assembly comprises a piezoelectric stack and a plunger arranged ...