Q:Who knows what oil in the closer, trouble tell me about

Requirements include: 1) whether the need to open the door after the automatic stop function; 2) damping buffer function - quickly open the door to a certain position after the damping buffer, and the damping buffer force and range can be adjusted according to the use of self-use; This function is used to prevent the door quickly when the door or lock the wall, or emergency escape To prevent people in the fast open when the weight loss and leaning forward. 3) delay the slow closing - the door from the door to the maximum position began to slow down slowly, according to the requirements of stepless adjustment. Suitable for use in frequent and crowded places, especially hospitals, with the elderly, children and disabled access and access to the use of the door. 4) Closing force can be adjusted - can be used in the door and the door wide range of different doors to install, and because of environmental reasons to close the door more resistance. Random stepless adjustment can be satisfied with the closing force, especially in the coastal city, travel and other affected by the wind and closing resistance (the door of the force) often change the place. 5) use of the environment: fire and fire requirements in the winter and 35 ° under the premises of the anti - freeze requirements. Usually the choice of door closers according to the manufacturer's product specifications, according to the size of different forces or adjustable power to match the size of different doors and weight. The following table shows the quality / size of the seven grades of test doors specified in the British Standard BS EN 1154 (a recognized standard for closed door gauges). The closing force of the door closet usually specifies a value between 1 and 7, the greater the number, indicating the greater the ability of the door closer.

Q:How to install the door closer

Connecting rod and the door to 90 degrees, then the host mounted on the door, two screws on the door, rocker in the door frame. ???? 2, the installation of door closers ???? A, closed door installation ???? The most commonly used door closers are exterior door closers, which are installed as follows: ???? The most common standard usage is that the door closers are mounted on the hinge side and the door opens. When installed, the arms of the door closers protrude outward and about 90 ° to the door frame. ???? In the second use, the door closer is mounted on the opposite side of the hinge side. Typically, an additional bracket provided with the door closer is mounted on an arm parallel to the door frame. This kind of usage is usually not required to install the door closer to the outside of the building outside the open door. ???? The door closer is installed on the opposite side of the hinge of the door. This use can also be used in outward doors, especially only on a very narrow edge, without enough space to accommodate the doors of the door closer.

Q:At least 2 years old, because I am doing the project, you can need a large number of purchases. Others say the Internet is cheaper, but not kind, afraid of poor quality. We recommend to me.

The key is the frequency of use of the janitor

Q:How to adjust the door closing force

Door closers to adjust the closing speed is through the two hydraulic valve independent control of two door closers closing speed for full hydraulic control.

Q:What is the main function of the door closers of fire doors?

Fire door closers play the role is that when you open the fire door, the door closet will automatically start off the fire door, so that the fire door can be turned off. So that fire doors effectively play a role in blocking the fire and the spread of smoke.

Q:What do you need to install a door closer?

Standard installation: the door closet is mounted on the door, the stand is mounted on the door frame, and the door closet is mounted on the sliding door side. This installation is suitable for the door frame is narrow, there is not enough space to install the door closer. Applicable to the direction of the door without obstacles, the door open to a large enough angle, the door closers will not hit the foreign objects.

Q:How much is the cheapest door closer?

Well-known domestic brands - Branch guide, her a small door closet KE-151 is relatively cheap, and ? 40. Branch guide the door closer, good quality, stable performance, sold overseas, so the cheapest door closet is certainly less than ? 40. Hope to help some.

Q:Do the door closers have automatic stop function?

Door closers are generally selected without positioning function of the product, the use of closed doors are generally to automatically close the door, and with positioning or stop function of the door closer price is generally about 30%, closed door function door open Angle can not be greater than 116 degrees, or easy to damage the door closer.

Q:Would like to ask what kind of door closers, suitable for hotel works with what?

Closer Burial device in the ground, collectively known as the spring.

Q:Just bought back, do not know why the rotation of the axis does not move ... no way to install

First, the solution: Use a screwdriver to release the adjustment valve on the door closer. Second, the role of behind closed doors: Modern hydraulic door closers (hereinafter referred to as closed doors) began in the early twentieth century, a patent registered by the Americans, it is different from the traditional door closers, through the closure of the liquid in the throat to achieve the buffer effect The The core of the design of the hydraulic gatekeeper is to realize the control of the closing process so that the various functional indexes of the closing process can be adjusted according to the needs of the people. The significance of the door closer is not only to automatically shut the door, but also to protect the door frame and the door (smooth off), more importantly, the door closet has become a modern building intelligent management of a non-negligible implementation of the part. Door closers are mainly used in commercial and public buildings, but are also used at home. They have many uses, the most important of which is to make the door closed by itself, to limit the spread of fire and ventilation within the building.