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在 LCN 闭门器技术问答中特别说明：延时动作期间，门扇并非始终停在一个固定位置，而是按延时设置在相应区间内移动。\u003C\u002Fp>\n\u003Cp>这也是“看起来停了一会儿”和“真正保持开启”容易混淆的原因。速度很慢时，短时间内不容易看出位置变化，但机构并未因此转为持续停门状态。观察时应看完整过程，而不是只看松手后的最初几秒。\u003C\u002Fp>\n\u003Cp>以 dormakaba TS 83 的相关延时配置为例，厂家把延时区间与后续受控关闭区间分别列出。这里引用的是功能分段，不能把该型号的角度范围、时间或安装方式，当作所有闭门器的统一参数。\u003C\u002Fp>\n\u003Cp>\u003Cimg src=\"https:\u002F\u002Fimg.shenzhenjianzhong.com\u002Fpublished\u002Fmedia\u002Fagent-articles\u002F572\u002F20261025\u002F179288856108371935\u002Farticle-572-f3eb29eb75cd846a.webp\" alt=\"门扇缓慢回闭、继续关闭及闭合到位的过程示意\" loading=\"lazy\" \u002F>\u003C\u002Fp>\u003Cp>回闭过程示意：延时段结束后继续关闭。图中位置不表示统一动作角度，各阶段范围及速度以型号和安装方式为准。\u003C\u002Fp>\n\u003Ch2>保持开启需要相应机构，不能靠延时设置代替\u003C\u002Fh2>\n\u003Cp>保持开启的作用，是将门留在允许的开启位置，直到按其设计方式解除。普通机械保持开启可以由专用保持臂或滑轨机构实现；能否启用、怎样解除，应查对应型号的说明。它并不是把延时阀调到最大后产生的另一个功能。\u003C\u002Fp>\n\u003Cp>TS 83 产品资料将延时配置和保持开启臂分开说明；dormakaba 的其他闭门器安装资料也分别列出延时调节与可选保持开启机构。选购时只写“开门后等一会儿”，容易把需求说含糊：是希望搬运通过后自动关门，还是希望在允许的场景中持续保持开启？先说明使用目的，供应方才能核对合适的配置。\u003C\u002Fp>\n\u003Cp>还应与开门缓冲区分。开门缓冲作用于门被推开的过程，目的是减缓过猛开启；延时关闭作用于回闭过程。名称里都有“慢”，但方向、触发条件和用途并不相同。\u003C\u002Fp>\n\u003Cp>\u003Cimg src=\"https:\u002F\u002Fimg.shenzhenjianzhong.com\u002Fpublished\u002Fmedia\u002Fagent-articles\u002F572\u002F20261025\u002F179288859403924622\u002Farticle-572-622f5b3cf3301d67.webp\" alt=\"延时关闭仍移动与普通门机械保持开启的对比示意\" loading=\"lazy\" \u002F>\u003C\u002Fp>\u003Cp>左：延时关闭仍处于回闭过程；右：普通门的机械保持开启由相应机构留住门扇。机构为功能示意，不能直接套用于防火门。\u003C\u002Fp>\n\u003Ch2>同一樘门，只开一点时为什么可能没有明显延时？\u003C\u002Fh2>\n\u003Cp>延时通常有对应的动作区间。门只打开一个较小角度，未进入该产品的延时区域，就可能直接按正常速度关闭。LCN 的延时调节说明明确指出，延时动作与采用的安装模板有关；其他型号的具体区间仍须看各自资料。\u003C\u002Fp>\n\u003Cp>所以，不能仅凭一次“小开口试关”就判定闭门器没有延时，也不能要求不同安装方式都得到同样的停留感。应先核对型号是否确有这一选项，再由维护人员按照说明检查开启范围、安装位置及调节状态。\u003C\u002Fp>\n\u003Cp>出现回闭突然加快、无法关到位、漏油或部件松动时，不宜为了延长通行时间继续试拧阀门。原厂安装说明对阀门调节幅度、阀头退出位置等有限制。没有型号资料时，不套用网上的统一旋转方向或圈数，更不能把阀门拧到底当成停门办法。\u003C\u002Fp>\n\u003Ch2>防火门不能直接照搬普通门的停门方案\u003C\u002Fh2>\n\u003Cp>普通门上可用的机械保持开启臂，不一定适用于防火或防烟门。TS 83 的上述产品资料就明确排除了其保持开启臂在这类门上的用途。需要保持开启的防火门，应核对整门认可的装置、释放条件和项目要求，不能因闭门器本体适用于防火门，就推断任意保持开启附件也适用。\u003C\u002Fp>\n\u003Cp>\u003Cstrong>延时关闭要看“是否按设计放慢一段回闭过程”，保持开启则要看“是否由相应机构留在开启位置”。\u003C\u002Fstrong>先分清这两个功能，再判断实际动作是否符合型号说明，比单纯比较门停了多久更可靠。\u003C\u002Fp>\n\u003Ch2>资料来源\u003C\u002Fh2>\n\u003Cp>Allegion：技术问答《How do you adjust a door closer?》；LCN《Delayed Action Closers》调节说明（文件编号25122）。dormakaba：《TS 83 Door Closer》产品资料，2021年1月版；闭门器安装说明T92217_A，2021年版。资料于2026年10月25日核对，本文采用其功能解释，不将具体型号参数作为通用施工要求。\u003C\u002Fp>\n",[],"建中编辑部","Allegion、dormakaba原厂技术资料","闭门器延时关闭与保持开启有什么区别？","闭门器,延时关闭,保持开启,液压延时,门用五金","闭门器带延时功能，门扇仍慢慢关闭是否正常？区分延时关闭与保持开启，说明动作区间、安装配置及防火门适用边界。",{"id":248,"name":71,"slug":348},{"title":361,"slug":362},"商铺卷闸门选型：透明展示与闭店遮挡怎样取舍","shop-roller-shutter-visibility-privacy",{"title":364,"slug":365},"武汉发布消防夜查公告，防火门状态与卷帘完好列入重点","wuhan-fire-door-night-inspection-oct2026",[367],{"id":334,"title":62,"subtitle":368,"image":369,"mobileImage":16,"link":16},"行业动态 · 技术问答 · 产品FAQ","https:\u002F\u002Fwww.shenzhenjianzhong.com\u002Fsecurity-assets\u002F5085ba7fa31941f0ae59e7a8db089907e86b3d1e921787ea3e7e8ff1a14d84e7.jpg"]