Classification of door closer
Due to the current market has not reached the door closer using is very common, so the closer the classification is not very clear, common door closing device can be divided into automatic door closers, fire door closers, and there are some frequently used, we have to talk about together for example Dorrenhaus closer classification .
heavy-duty door closer
"The heavy-duty door closer is a hydraulic device similar to a spring on the door head. When the door is opened, it can be released after compression to automatically close the door. It acts like a spring door, which can ensure that the door can be closed to the initial position accurately and timely after being opened."
Sliding door closer
Sliding door closer is an automatic closing device for swing door. It uses a connecting rod to convert the rotation of the door and the linear motion of the driving device, and directly uses the linear motion of the driving device to drive the rotation of the door, so that the structure of the door closer can be simplified; The utility model is mainly composed of a support, a body and a connecting rod hinged with the support and the sliding block on the body respectively; The support is fixed on the door frame, and the body is fixed on the door. When opening the door, the slider drives the power device in the body to store energy. After letting go, the power device drives the slider to automatically close the door through the connecting rod.
Concealed door closers
Concealed closers with low temperature anti icing hydraulic oil, in extreme environments (-40 -60 DEG C) also can be used flexibly, unique structure design, suitable for left and right hand door, without any adjustment, convenient installation, but the door for more stringent requirements, wood thickness not less than 44mm, the hollow door thickness not less than 40mm.
Rocker type door closer
Rocker type door closers is generally more suitable for light and medium civil and commercial doors, color classification generally have silver, bronze, gold, white, used in standard frame installation.
Guide the door closer
The guide type door closer is very popular in the European and American markets. It is mainly applicable to all kinds of civil and commercial doors. It is common in the general family and market.
The fire door closers
This camera is very important for the fire, because it can automatically shut the door, blocking the spread of fire air effectively. The fire door closers and can also fire control systems use, normally open fire doors suitable for frequent. Fire or accident, fire door closers role in the linkage can be closed in time, at the same time will be closed to signal to the fire control system.