The door closer is a spring-like hydraulic device on the door. When the door is opened, it can be released by compression, and the door is automatically closed. It has the function of a spring door to ensure accurate and timely closing to the initial position after the door is opened. . The core of its design is to achieve the control of the closing process, so that the various functional indicators of the closing process can be adjusted according to people's needs.
The main purpose of the door closer is to close the door itself to limit the spread of fire and ventilation in the building. In recent years, there have been more and more high-rise civil buildings in major cities in China. Fire evacuation doors and stairwells in these buildings are equipped with fire doors for fire compartments. Because the walkway and stairwell are the main ways of traffic in the building during daily work, the personnel enter and exit more frequently. In order to truly achieve the purpose of setting up the fire door and prevent the fire from spreading from the open fire door, the fire door of these parts is generally required. It is in the normally closed state, so the door closer should be set. When a fire breaks out, the door closer automatically closes the fire door to isolate the fireworks, helping people escape time and reducing or avoiding casualties.
Another importance of the door closer for the residential community is the public protection for the unit building, which can act as a theft. It is mainly used in the intercom security door of the building, and the electric control lock and the door closer and control keyboard are installed at the door of the unit building. When any resident in the unit opens the door with a key and enters the building, the door closer will automatically close the door. When the relatives and friends visit, you can control the keyboard, press the corresponding signal, the intercom in the master room will make a sound, after confirming the identity through the intercom, press the door lock open button, the unit door will open, please enter. Unrelated personnel cannot easily mix in, so that the safety inside the unit is guaranteed.
The door closer also has the function of isolating noise. Now many communities still use the old iron gates. The people who come in and out open the door and close the door, causing people to feel flustered, and the dilapidated iron gate is extremely shocked under such frequent impact. It is easy to be damaged. The annual maintenance cost is also a small expense. If you replace the door closer with a delayed closing, you can solve these problems. When the door is opened and closed, the door closer can play a buffering role. When the entire door is completely closed, the residents basically can't hear any sound, and the door closer can make the door slowly recover after the door is opened to cushion the violent collision with the door frame, so that the service life of the door will be greatly increased and almost no maintenance is required. .
In addition to the function of closing the door and locking the door, the door closer has functions such as delay, buffer, door closing and door closing force adjustment, so it is also necessary for every family. In the general family, there are elderly people and children. A door closer with a time delay function can be installed at the outer door, which can extend the closing time for the elderly and children to pass. Moreover, many children inadvertently collide with the door when opening the door. A family with a wall or a thing behind the door can install a cushioning function door closer to avoid hitting the person when the door is opened too fast. For interior doors, small models of door closers are available. Because 1, its switch door strength is small, easy for the elderly and children to open. 2, the small size of the door closer is relatively small in size, installed on the door is more beautiful, 3, energy saving, now the room in the home is mostly equipped with air conditioning, the installation of the door closer can keep the door closed at any time, better play the role of air conditioning And save energy.
Due to the current lack of strict specifications for door closers in China, the current market for door closers is confusing and the quality is uneven. Therefore, when choosing products, we should choose professional manufacturers, so that prices, quality and services can be Guaranteed. Taking An Langjie as an example, the cost-effectiveness of its production of door closers is top-notch in the country. The Briton brand door closers produced by the company are certified by the European Union and are used in the doors of major hotels across the country. The price is only 200. Yuan or so. And An Langjie has professional technicians to provide professional guidance on the installation of the door closer to ensure the perfect function of the door closer.
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