The pump barrel of the hand-press pump is arranged in a liquid medicine box, and the pressure storage barrel is usually arranged at the outer side of the liquid medicine box.
手压泵的泵筒设置在药液箱里,手压泵的储压筒一般设置在药液箱外。
It is the key study how to make sure the pressure distribution of liquid in the pump barrel and to study the pump valve-ball's movement to improve the systematic efficiency.