Closer - a mechanical device intended for smooth automatic door closing. Its use protects the entrance design from premature wear and retains the microclimate in the building. The doors are equipped with entrance and interior doors, in public buildings, between extensions, etc. How to adjust the door closer for comfortable work of the mechanism?
Drawing of the entrance door closer.
Adjustment of the closer mechanism is performed both when installing the device and during its operation. The door closing speed with the closer may decrease with a decrease in the outdoor temperature. This is due to an increase in the viscosity of the oil used in the device. Therefore, additional adjustment of the input equipment is made with the onset of the winter period. Different models of the device have their own temperature range of normal operation.
The frequency of conducting the adjustment of the closer depends on the duration of the previous operation of the device, the massiveness of the canvas, the frequency of movement through the input. The adjustment of the closing mechanism should be carried out at least 2-3 times a year.
Principle of operation of the door closer
Options for installing door closers.
The main working part of the closer is a spring placed in a metal housing, which is filled with oil composition. The device works due to the interaction of the lever and hydraulic system. When opening the door, the spring is compressed, and the oil is transmitted from one cavity to another. During the reverse movement of the web and straightening the spring, the oil serves as a kind of shock absorber and ensures the smoothness of the process.
The system is equipped with valves, from the adjustment of which the rate of flow of oil from one compartment depends on the other under the action of the levers. Accordingly, their adjustment allows you to adjust the smoothness of the automatic door closing.
Some models have an additional valves in the mechanism, providing other closer functions. For example, this includes fixing the door in the open state and the Dullop function for better adjuncing the canvas to the logka or snapping the lock.
The lever mechanism can be installed both from the inner and outside the outdoor side of the entrance. Outside the closer is undesirable due to changes in the surrounding temperature and, accordingly, changes in the viscosity of the oil used in the oil mechanism.
Article on the topic: How to make the zoning of the room on the bedroom and the living room
Door closers in the installation method are divided into the following types:
- Overhead, mounted on a canvas, box design or in a loop instead of a rod;
- Hidden mechanisms in a box or canvas with their massiveness sufficient;
- Mounted in the floor in advance.
Device adjustment
Diagram of the device door closer.
To adjust and pull up the fasteners of the door closer, you will need:
- Passatia;
- spanners;
- screwdriver.
Before adjusting the entrance door closer, you should find out if there are no external factors affecting the normal work of the closer. It may be damage to the door design, the state of the loop.
The main parameter of the closer to be adjusted, changing the door closing speed. If the web is moving too fast or slowly, the first valve is adjusted. The speed of movement is changed by turning the screw according to or along the clockwise arrow. But the scrolling in no case should exceed two revolutions. This can lead to leakage of oil from a hermetic case.
The second control valve is responsible for the function "Dullop". With it, it changes the speed of closing the door on a plot of 10-15 ° to the complete closure of the opening. The tightening of the screw increases the time to the final contact of the canvas with the louting. The operation is performed when the cloth is open by 90-100 °.
The strength of the spring tension is set by the adjusting nut. Rotating it along the clockwise arrow increases the door of the opening of the door, unscrewing counterclockwise increases the effort to open the door.
Some device models are equipped with an additional Hold-Open function. If the passage is required for some time to leave open to move items or ventilating the room, the door stops at an angle of 90-100 ° by tightening the retainer.
After such adjustment, the device operates in normal mode only before opening the door to a straight angle. When smasted the web to the angle of over 90 ° it will remain fixed. Locking with manual closure.
If the adjustment of the closer does not lead to the results you need, it is possible that it was initially installed incorrectly.
In this case, the device should be reinstalled by the instructions by checking the verticality of the web and the noise of loops.
Article on the topic: Polystyrene foam for a heated floor: foil foam, polystyrene on the penplex, the thickness of the extruded
So that the closer served longer, it is not recommended to apply unnecessary effort, helping the mechanism faster or more slowly to work. Do not stop the door with outsiders. If necessary, it is better to discharge the levers for the free movement of the web.