Guide to Selection and Installation of Door Locks

   A door lock is a device used to lock the door to prevent others from opening the door. This device may be mechanical or electric. Electric power requires electric energy.

   1. Types of door locks

   Door locks are classified into the following categories due to different lock making technologies and applications: spherical door locks; The handle of the door lock is spherical, the manufacturing process is relatively simple, and the manufacturing cost is low. It is widely used in our country. Because of its poor safety, it is generally used for interior door locks. The main materials of the product are iron, stainless steel and copper. Iron is used for the inner structure of the product, the outer shell is made of stainless steel, and the lock cylinder is made of copper. A three-bar handle lock means that the handle of the door lock is a door handle. The manufacturing process is relatively simple and the manufacturing cost is low. It is widely used in our country. Because of its poor safety, it is generally used for interior door locks. The material of the product is mainly iron, stainless steel, copper, zinc alloy iron for the inner structure of the product, the outer shell is mostly stainless steel, the lock core is mostly copper, and the lock handle is made of zinc alloy. Core insert handle lock, this lock is divided into split lock and conjoined lock, the product material is more, there are zinc alloy, stainless steel, copper. The product has good safety, and is commonly used in entry doors, room doors and office buildings. Glass door lock; With the appearance of glass doors, many glass door locks have appeared. The advantage of the glass lock is that the glass does not need to open holes and has better safety performance. 2, the door lock purchase guide 1. Before purchasing your own door lock, calculate the thickness and material of the door that needs to be equipped with the lock so that the merchant can recommend suitable products for you.

   2.To determine their own door lock direction

   The door lock is essentially left and right, because the left and right are adjusted according to the needs when installing. If the direction of the door is determined, you can mention it to the merchant so that the merchant can adjust it for you! If you are still unsure of the direction, you can buy it and adjust it yourself, which is very convenient! How to distinguish left and right: you stand outside the door and face the door. if the hinge is installed on the left side of the door, it is left open. if the hinge is installed on the right side of the door, it is right open! ? ? As for whether the door lock is opened inside or outside, it is only necessary to replace the bolt. 3: The color and style of the door lock need to be chosen according to the style of the home door and the decoration style. It is suggested that the style and color of the door lock should be in harmony with the design style of the door to create group beauty and maintain the integrity of the decoration style design. 4: Door locks are divided into single tongue and double tongue. Please see the figure below for a more intuitive understanding.

   3. Door lock installation skills

   One: Determine the direction of opening the door. Generally, the door has four directions: left outside, left inside, right inside and right outside. Confirm the direction of the door before installation to avoid reverse installation. Second, adjust the positive and negative positions of the inclined tongue according to the opening direction. Some products have the function of reversing left and right. The course can change the direction of the inclined tongue according to the following steps, and then the inner and outer wrench sets can be reversed. 1. Turn the lock body upside down so that the oblique tongue locating piece leaves. 2. Easily push the oblique tongue into the space position, turn it 180 degrees to loosen it, and then change direction when it is restored. Third, the handle of the special device is changed to make a lock body hole with a width, height and depth in the center of the door thickness according to the sizes marked by different models. In addition, dig a panel hole according to the height dimension (3MM) of each panel, and require the panel to be flush with the door. The position of each hole shall be dimensioned according to the drawing and shall not be changed at will or deviated.

   4.Door lock maintenance

   Different from commercial hardware standards, civilian hardware accessories have been used for a long time and are prone to many problems here and there. Especially the door lock, this kind of high-load operation parts, has a long service life, inevitably there will be a little fault. It is often found that some users and friends, the damage of the door lock is often caused by improper use or maintenance. Some matters needing attention in door lock maintenance: lubricant; Some friends often like to drip some lubricating oil into the lock eyes when the lock locks are unsmooth or tight. In this way, the whole body of the lock may be smooth immediately. However, because the oil is easy to stick to ash, dust will slowly accumulate in the lock eyes in the future, thus forming grease, which makes the lock more prone to failure. The correct solution is to cut some pencil crumbs or some candle crumbs, blow them into the lock cylinder through a thin tube, then insert the key and turn it several times. Opening the door is not smooth; In some cases, due to the gravity of the door leaf itself or the loose leaf of the door, the door leaf sinks, causing the door to lock or not open smoothly. At this time, it is often very difficult to open and lock the door with the key. At this time, don't twist the key forcibly to avoid breaking the key and increasing trouble. Correct solution: check the reason first. If the loose leaf causes the door leaf to sink, the loose leaf should be fixed tightly with screws. If the door frame is deformed or cannot be recovered due to its reason, the bolt can be expanded correspondingly starting from the door frame, so that the door lock can be opened and closed normally and smoothly.