①主體活動部分，用(yong)以封閉或開(kai)放孔(kong)口，通稱(cheng)閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)，亦稱(cheng)門(men)(men)(men)葉；　　②埋固(gu)部分；　　③起閉設備。　機門(men)(men)(men)一體鋼(gang)板(ban)水(shui)(shui)利閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)分類　　我們將水(shui)(shui)利閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)進行如下分類：　　1、如果(guo)按(an)閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)的工(gong)作(zuo)性質可分為工(gong)作(zuo)閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)、檢(jian)(jian)修(xiu)(xiu)(xiu)閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)和(he)事(shi)故(gu)閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)。工(gong)作(zuo)閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)也稱(cheng)主要閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)，能(neng)在(zai)動水(shui)(shui)中(zhong)啟(qi)閉。檢(jian)(jian)修(xiu)(xiu)(xiu)閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)設于工(gong)作(zuo)閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)前。用(yong)于建筑(zhu)物或工(gong)作(zuo)閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)等檢(jian)(jian)修(xiu)(xiu)(xiu)時(shi)(shi)短期擋(dang)水(shui)(shui)，一般在(zai)靜(jing)水(shui)(shui)中(zhong)啟(qi)閉。事(shi)故(gu)閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)多(duo)設于深孔(kong)工(gong)作(zuo)閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)前，用(yong)于建筑(zhu)物或設備出現事(shi)故(gu)時(shi)(shi)，能(neng)在(zai)動水(shui)(shui)中(zhong)關閉而在(zai)靜(jing)水(shui)(shui)中(zhong)開(kai)啟(qi)；兼(jian)作(zuo)檢(jian)(jian)修(xiu)(xiu)(xiu)閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)時(shi)(shi)，也稱(cheng)事(shi)故(gu)檢(jian)(jian)修(xiu)(xiu)(xiu)閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)；需(xu)要在(zai)限定時(shi)(shi)間內緊急關閉的事(shi)故(gu)閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)，稱(cheng)為快速閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)。　　2、如果(guo)按(an)閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)關閉時(shi)(shi)門(men)(men)(men)頂(ding)與水(shui)(shui)面的相(xiang)對位置分為露頂(ding)式閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)和(he)潛孔(kong)式閘(zha)(zha)(zha)(zha)(zha)(zha)門(men)(men)(men)。