The installation of door and window pulley is actually very simple, only a few steps can be completed, of course, before the installation of door and window pulley, but also know how to buy, the following Xiaobian will lead you to understand.
Installation of door and window pulleys
Pulley is a very important part of the sliding door, when buying, be sure to ask what is the material used by the business. Now there are three kinds of pulley, respectively, plastic pulley, its texture is hard, the disadvantage is easy to break, after a period of time, the sliding door in the process of pushing and pulling will feel astringent; Metal pulley is of better quality, but noisy; Glass pulley is one of the best of the three kinds of pulley, with excellent toughness and wear resistance, smooth sense of push and pull, and durable, the most important is that the pulley is also the key factor affecting the life of the sliding door. The function of the door pulley is the key to the quality of the pulley, because the sliding door will usually do 2. 4 meters above the height, wide door. I can do 1. 5 meters, in addition to the popular glass door panel, so its own weight is very large, if the weight of the bottom wheel is not enough, it will greatly affect the service life, early push and pull is not smooth. Increased noise or can not be used at all, at present on the market at the bottom of the wheel, the largest bearing capacity is good home smooth door, its single wheel bearing capacity can reach 180 kilograms.
There is also an important point to make the door work well: heavier doors are better. Therefore, the door used as a moving door should be a solid wood door or a glass door to increase the weight of the door and move more smoothly. Do not have to do hollow wooden door, one because it is too light, easy to offset the track, two because it is hollow, like a sound box, moving up noise will be relatively large. Generally speaking, the weight of a single door should be at least 50-60kg above, about 750-800mm width, glass is thicker, with 5mm as appropriate.
Principle of movable pulley when used, the pulley whose shaft moves with the object is called movable pulley. The movable pulley can be regarded as a labor-saving lever, O is the fulcrum of the lever, and the axis of the pulley is the action point of the resistance. The force of the lifting object on the shaft is resistance, and the force of the rope on the wheel is power. When lifting heavy objects, if the two ropes are parallel, the power arm is twice the resistance arm; When the pulley is balanced, the force is half of the resistance. Therefore, regardless of the gravity of the pulley itself, the use of the pulley can save half of the force, but at this time can not change the direction of force, pull up the rope to lift the weight.
Choose quality door and window pulleys
High quality door and window pulleys can not only reduce noise, but also extend the service life of doors and Windows. But the pulley on the market is often a variety of good and bad, so that consumers can not distinguish the quality of good or bad. The following two tips for choosing a pulley may help you.
The first choice of material, now on the market sales of track material is different, the slide is mostly alloyed, there is also a part of the slide made of copper. Alloyed rails are divided into ordinary and thickened, depending on the texture of the door or window to which they apply. If the size of the door or window is small and light, you can choose a smaller track, if the weight of the door or window is heavy, it is necessary to choose the thickened track to ensure safety and durability.
Secondly, the choice of supporting pulley, pulley is a sliding door and window can not be ignored in the accessories, good quality pulley can promote the use of door and window push and pull. The quality of the pulley’s outer wheel and bearing determines the quality of the pulley. The outer wheel is mostly made of nylon fiber or copper. The copper pulley is stronger, but it has a sound when it is pulled. The nylon fiber pulley is silent when pulled, but it does not wear as well as the copper pulley.
It is understood that good quality pulley bearings are generally made of stainless steel, bearings are installed closely, feel soft and no noise when sliding, and some pulleys can even adjust the height to make up for the distance between the door and the track, so that the door and the track are connected more closely. The workmanship quality of the small pulley at the bottom of the door and window is also very different. The small pulley with good workmanship is light and fast to pull up. Some brands of the pulley are also equipped with an anti-jump device, which is safer to use.
The workmanship quality of the small pulley at the bottom of the door and window is also very different. The small pulley with good workmanship is light and fast to pull up. Some brands of the pulley are also equipped with an anti-jump device, which is safer to use.
