Do You Really Know About Door Closers？
Source: | Author:business-101 | Published time: 2017-05-11 | 817 Views | Share:
　　Who invented the modern door closer?
　　We say modern hydraulic door closers, a patent that was registered by Americans in the early twentieth century. Unlike traditional door closers, buffering is achieved by throttling the liquid in the door closer.
　　What is the role of the door closer in addition to closing the door?
　　The core of the hydraulic door closer design idea is to realize the control of the closing process, so that the various functional indicators of the closing process can be adjusted according to the needs of the person. The significance of the door closer is not only the automatic closing of the door, but also the protection of the door frame and the door body (smooth closing). More importantly, the door closer has become an indispensable part of the intelligent management of modern buildings.
　　Door closers are mainly used in commercial and public buildings, but they are also used at home. They have many uses, the most important of which is to close the door itself to limit the spread of fire and ventilation in the building.


　　What issues should I consider when choosing a door closer?
　　Before choosing a door closer, you should consider: door weight, door width, door opening frequency, use requirements and use environment.
　　The door weight and the door width are the premise of selecting the door closer model. Generally, the door weight is small and the power selection model is small. First, it feels very easy to open the door, and the door is also coordinated on the door; second, the small product is generally economical. vice versa.
　　The opening frequency is closely related to the quality requirements of the product.
　　First, the door closer is required to have good sealing performance and no oil leakage. The key is the technology and material of the dynamic sealing. Second, the life of the door closer is required to be long, so as to ensure long-term and normal use after installation, and reduce maintenance. The updated workload and cost, as well as the convenience and enjoyment of the door closer products.


　　What are the usage requirements?
　　1). Is there an automatic stop function after opening the door?
　　2). Damping buffer function
　　Damping buffer is generated after quick opening to a certain position,
　　Moreover, the damping buffer force and range can be adjusted according to the use requirements;
　　This function is used to prevent the door or lock from colliding with the wall when the door is opened quickly,
　　Or prevent people from losing weight when opening the door in an emergency escape and tilting forward。
　　3). Delayed slow closing
　　The door is slowly closed at a constant speed from the maximum position of the door opening, and can be adjusted steplessly according to requirements
　　Suitable for use in ordinary and crowded places, especially in hospitals, with doors and passages for the elderly, children and disabled。
　　4). Closed power adjustable function
　　Can be installed on different doors with a wide range of door weights and door widths,
　　And places where the resistance is high due to environmental reasons
　　Feel free to adjust the level to get a satisfactory closing power,
　　Particularly useful in coastal cities, where vehicles and ships often change due to wind resistance and closing resistance。