①主體活動(dong)部分(fen)，用(yong)以封閉(bi)或開放孔口，通稱閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)，亦(yi)稱門(men)(men)(men)(men)(men)葉；　　②埋固部分(fen)；　　③起閉(bi)設(she)(she)備。　機(ji)門(men)(men)(men)(men)(men)一(yi)體鋼板(ban)水(shui)利閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)分(fen)類(lei)　　我(wo)們(men)將水(shui)利閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)進行(xing)如(ru)(ru)下分(fen)類(lei)：　　1、如(ru)(ru)果(guo)按(an)閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)的(de)工(gong)作(zuo)(zuo)性質可分(fen)為工(gong)作(zuo)(zuo)閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)、檢(jian)修(xiu)(xiu)閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)和事(shi)(shi)故(gu)(gu)閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)。工(gong)作(zuo)(zuo)閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)也稱主要閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)，能(neng)(neng)在(zai)動(dong)水(shui)中(zhong)啟閉(bi)。檢(jian)修(xiu)(xiu)閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)設(she)(she)于(yu)工(gong)作(zuo)(zuo)閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)前(qian)。用(yong)于(yu)建(jian)筑物或工(gong)作(zuo)(zuo)閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)等(deng)檢(jian)修(xiu)(xiu)時短期(qi)擋水(shui)，一(yi)般在(zai)靜水(shui)中(zhong)啟閉(bi)。事(shi)(shi)故(gu)(gu)閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)多(duo)設(she)(she)于(yu)深孔工(gong)作(zuo)(zuo)閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)前(qian)，用(yong)于(yu)建(jian)筑物或設(she)(she)備出現(xian)事(shi)(shi)故(gu)(gu)時，能(neng)(neng)在(zai)動(dong)水(shui)中(zhong)關(guan)閉(bi)而在(zai)靜水(shui)中(zhong)開啟；兼作(zuo)(zuo)檢(jian)修(xiu)(xiu)閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)時，也稱事(shi)(shi)故(gu)(gu)檢(jian)修(xiu)(xiu)閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)；需要在(zai)限定時間(jian)內緊急關(guan)閉(bi)的(de)事(shi)(shi)故(gu)(gu)閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)，稱為快速閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)。　　2、如(ru)(ru)果(guo)按(an)閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)關(guan)閉(bi)時門(men)(men)(men)(men)(men)頂與水(shui)面的(de)相對位置分(fen)為露頂式(shi)閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)和潛孔式(shi)閘(zha)(zha)(zha)門(men)(men)(men)(men)(men)。