电梯门套是建筑内电梯出入口的装饰保护部件，主要起装饰、保护和防火等作用。在建筑与装饰装修领域，门套与门框是两个不同的概念——门框是固定门扇的支撑结构，通常隐藏在内部；而门套是用于遮盖门框与墙体缝隙、保护墙角的装饰构件，在电梯外部可见。电梯行业国家标准GB7588-2003中并未将“门套”作为正式术语，该词为行业俗称。

Elevator door frame is a decorative and protective component for elevator entrances and exits in buildings, mainly used for decoration, protection, and fire prevention. In the field of architecture and decoration, door frames and door frames are two different concepts - door frames are the supporting structures that fix door leaves and are usually hidden inside; The door frame is a decorative component used to cover the gaps between the door frame and the wall, protect the corners of the wall, and is visible outside the elevator. The national standard GB7588-2003 for the elevator industry does not use "door frame" as an official term, and the term is commonly used in the industry.

从覆盖范围来看，电梯门套通常分为“小门套”和“大门套”两类。小门套是电梯厂家出厂时标配的发纹不锈钢材质的门洞包覆构件，成本相对较低，主要覆盖门框周边区域；大门套则是覆盖候梯厅墙体的外包装饰构件，装饰性更强。部分出众项目采用首层发纹不锈钢与其他楼层LOW-e钢化玻璃组合材质，兼顾美观与功能性。

From the perspective of coverage, elevator door frames are usually divided into two categories: "small door frames" and "large door frames". The small door frame is a standard stainless steel material door opening covering component for elevator manufacturers when they leave the factory. It has a relatively low cost and mainly covers the surrounding area of the door frame; The gate cover is an external decorative component that covers the walls of the waiting hall, with stronger decorative properties. Some high-end projects use a combination of first floor textured stainless steel and LOW-e tempered glass on other floors, balancing aesthetics and functionality.

在材质分类方面，依据相关技术规范，电梯门套按主要饰面材料可分为不锈钢防火电梯门套、锌钢防火电梯门套、钢塑（石塑）防火电梯门套、钢石（大理石）防火电梯门套等类型。不同材质各有其性能特点和使用场景：不锈钢材质现代感强、耐腐蚀耐磨；铝合金材质轻便灵活、性价比高；石材材质外观大气但价格高昂；石塑材质则兼具美观与经济性。

In terms of material classification, according to relevant technical specifications, elevator door frames can be classified into stainless steel fireproof elevator door frames, zinc steel fireproof elevator door frames, steel plastic (stone plastic) fireproof elevator door frames, steel stone (marble) fireproof elevator door frames, and other types based on their main decorative materials. Different materials have their own performance characteristics and usage scenarios: stainless steel material has a strong sense of modernity, corrosion and wear resistance; Aluminum alloy material is lightweight, flexible, and cost-effective; The stone material has a grand appearance but is expensive; The stone plastic material combines aesthetics and economy.

电梯门套作为人流量较大且电梯运行存在风压的井道外墙保护装饰，需要满足严格的技术性能要求。在抗撞击强度方面，电梯轿厢门在GB7588-2003中规定要求在5cm×5cm范围内承受静力300N和撞击力1000N，电梯门套应具备同等耐撞击程度，以防止提重物或电动车、自行车进出电梯时发生撞击损坏。在防水阻燃方面，电梯为特种设备，火灾情况下电梯不允许使用，但电梯门套作为候梯厅的重要部分，建议达到相应阻燃要求（V0或以上），从而提高整体的消防等级；同时，若遭遇潮湿环境或被水浸泡，需达到浸水24小时不变形不开裂的标准。设计寿命方面，门套需与电梯同步达到16年以上。

As a protective decoration for the exterior walls of shafts with high pedestrian flow and wind pressure during elevator operation, elevator door frames need to meet strict technical performance requirements. In terms of impact resistance, the elevator car door is required to withstand a static force of 300N and an impact force of 1000N within the range of 5cm × 5cm according to GB7588-2003. The elevator door frame should have the same level of impact resistance to prevent damage from impact when lifting heavy objects or electric vehicles or bicycles enter and exit the elevator. In terms of waterproofing and flame retardancy, elevators are special equipment and are not allowed to be used in case of fire. However, as an important part of the waiting hall, the elevator door frame must meet the corresponding flame retardancy requirements (V0 or above) to improve the overall fire protection level; At the same time, if encountering a humid environment or being soaked in water, it is necessary to meet the standard of no deformation or cracking after 24 hours of immersion. In terms of design lifespan, the door frame needs to synchronize with the elevator for at least 16 years.

现代电梯门套，尤其是防火门套，多采用装配式结构，通常由可拆装的上梁、左边框、右边框通过插接等方式组装而成。门套内侧常设置U型加强件以增加强度，并满布防火衬板以满足防火要求。部分新型门套结构通过连接组件实现大门套与小门套的快速插接固定，大幅提升了安装效率。随着装配式建筑和绿色施工理念的普及，电梯门套正朝着模块化、标准化、快速安装的方向发展，环保材质和快捷组装工艺已成为行业主流趋势。

Modern elevator door frames, especially fireproof door frames, often adopt prefabricated structures, usually assembled by detachable upper beams, left frames, and right frames through plug-in connections. U-shaped reinforcement components are often installed on the inner side of the door frame to increase strength, and fireproof lining plates are fully covered to meet fire protection requirements. Part of the new door frame structures achieve quick insertion and fixation of the large door frame and small door frame through connecting components, greatly improving installation efficiency. With the popularization of prefabricated buildings and green construction concepts, elevator door frames are developing towards modularity, standardization, and rapid installation. Environmentally friendly materials and fast assembly processes have become the mainstream trend in the industry.

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