傘齒(chi)輪日標刀(dao)閘(zha)(zha)(zha)(zha)閥(fa)(fa)采用整體(ti)(ti)(ti)式結構刀(dao)閘(zha)(zha)(zha)(zha)閥(fa)(fa),包括閥(fa)(fa)體(ti)(ti)(ti),閘(zha)(zha)(zha)(zha)板(ban)(ban)和U型密封(feng)(feng)條(tiao),閥(fa)(fa)體(ti)(ti)(ti)中腔底(di)部設(she)有凹(ao)(ao)槽并裝(zhuang)有彈性U型密封(feng)(feng)條(tiao),當(dang)閥(fa)(fa)門關閉時(shi)閘(zha)(zha)(zha)(zha)板(ban)(ban)下移,閘(zha)(zha)(zha)(zha)板(ban)(ban)底(di)部邊(bian)緣與密封(feng)(feng)條(tiao)接觸進(jin)而壓(ya)縮密封(feng)(feng)條(tiao)進(jin)入凹(ao)(ao)槽中實現閥(fa)(fa)體(ti)(ti)(ti)和閘(zha)(zha)(zha)(zha)板(ban)(ban)的(de)(de)密封(feng)(feng);當(dang)刀(dao)閘(zha)(zha)(zha)(zha)閥(fa)(fa)開啟時(shi)閘(zha)(zha)(zha)(zha)板(ban)(ban)上移,閘(zha)(zha)(zha)(zha)板(ban)(ban)底(di)部邊(bian)緣與密封(feng)(feng)條(tiao)脫離(li),密封(feng)(feng)條(tiao)彈起與凹(ao)(ao)槽平(ping)整,能防止刀(dao)閘(zha)(zha)(zha)(zha)閥(fa)(fa)在(zai)(zai)使(shi)用過(guo)程中,介質沉淀物積存在(zai)(zai)閥(fa)(fa)體(ti)(ti)(ti)中腔的(de)(de)凹(ao)(ao)槽里