A lower cover for burette includes a cover body and a tube. The cover body has an intake hole. The intake hole penetrates a top to a bottom of the cover body. The tube is formed integrally at the bottom of the cover body. The intake hole is through the inner of the tube. The inner wall of the tube is formed with a protruding portion. The end of the tube is formed with a protrusion. As a result, it can save the cost of manufacturing without assembling the cover body and the tube. The tube does not depart from the cover body and form iron filings. It can save the human being and keep the flow rate of the liquid. The present invention further provide a process for manufacturing a lower cover and a volume meter set with a lower cover.一種計量筒下蓋,包括有一下蓋本體及一中空管體,該下蓋本體具有一進液口,該進液口貫通該下蓋本體之頂部及底部,該中空管體一體成型凸設於該下蓋本體之底部,該進液口與該中空管體之內部相通,該中空管體之內部形成有一凸部,該中空管體之末端形成有一延伸部;藉此,省去加工組裝下蓋本體及中空管體,可有效降低製造成本,中空管體不會有脫落及產生鐵屑的問題,保障人體生命安全,並可維持液體下滴的流量。本發明另提供一種計量筒下蓋製造方法及一種具有計量筒下蓋的輸液套。1...計量筒下蓋11...下蓋本體113...連接部12...中空管體124...延伸部
