When we buy indoor door locks, handle locks are indispensable, it is widely used in indoor doors, because of its wide range of uses, so it is one of the most abundant types of door locks. However, as users, most of us only pay attention to the brand of the door lock and the appearance of the door lock, and our knowledge of the internal structure of the handle lock is very limited.

In fact, we properly understand the structure and composition of the handle lock, which is very helpful for the purchase of good quality door locks, as well as for future use and maintenance. Next, please ask friends to take a look at the passage structure diagram of the indoor handle lock with me.

Part 1: Handles

Handle, also known as door handle, materials are zinc alloy, copper, aluminum, stainless steel, plastic, logs, ceramics, etc., now the commonly used door handle on the market is made of zinc alloy, due to its excellent plasticity, can be designed into a variety of shapes, colors, and can also do some special shapes on it, such as KLC European carved locks on the market, there are exquisite European shapes on the handle, and the complex patterns highlight the prosperity of the Middle Ages.

When choosing a door handle, in addition to the style to conform to the design style and Chinese goodwill habits, special attention must be paid to the electroplating process on the surface of the handle. A good electroplating process needs to go through 8 layers of polishing process and 12 layers of electroplating process to ensure its wear resistance and corrosion resistance. The quality of the electroplating process and the quality of the material are the main signs that determine the price of the door lock.

Part II: Panels

From the length and width of the panel, the lock is divided into a door lock or a door lock, so when purchasing, the panel is also a very important factor. The size of the door panel is not the same, according to the size of the opening of the wooden door to choose the lock, before the purchase we also have to clarify what is the thickness of the door at home, the general door thickness is 38-45mm, special thickened doors need special door lock treatment.

The material and thickness of the panel are very important, the use of high-quality materials can prevent the deformation of the panel, the electroplating process can prevent rust and spots, the thickness of the door lock of Tiannu hardware has reached 2mm, the edge thickness has reached 2.2mm, and after 24 hours of smoke test, the hardness of more than 4 hours of varnish sealing, the paint temperature of 150 degrees The surface is smooth and smooth, effectively preventing corrosion, more wear-resistant, and not dusty and greasy

Part III: Lock Body

The lock body is the core of a lock, which is the key part and the core part, and is generally divided into a single tongue lock body and a double tongue lock body. The basic composition is: shell, main parts, liners, door buckle plates, plastic boxes and screw fittings, and the materials used in the five parts are also different. The shell of the lock body is generally made of iron galvanized sheet, which does not need electroplating; The main body is generally composed of zinc alloy and high-quality iron; The liner is made of stainless steel and copper, and many brands have company logos here; The latch is made of stainless steel, stainless iron and copper.

The lock body has the difference between a single tongue lock body and a double tongue lock body, and the single tongue generally has only one oblique tongue, with two specifications of 50 and 1500px, this size refers to the distance between the lining plate and the square hole of the lock body. The installation of the monolingual lock body is the most convenient, and the general master will choose the monoling, so it is used the most in engineering, but it is the most unreliable and easy to destroy. The double tongue lock body includes oblique tongue and square tongue, and a good square tongue is composed of tungsten steel bar and carbon steel to prevent the lock body from being damaged, and the anti-theft performance is better, and the installation is more time-consuming. The larger the lock body, the more expensive the general price, the multi-functional lock body is generally locked with the door, its anti-theft performance is very good, and the price is very expensive; The lock body is a functional part of a lock, and it is also the most critical part.

Part IV: Lock cylinder

The lock cylinder is the main part that controls the opening of the lock, is the heart of the lock, and refers to the core part that can rotate and drive the movement of the lock bolt with the key, which is generally divided into five types: large gourd, small gourd, fake gourd, angle key, and large lock series.

The material and process of the lock cylinder have a great impact on the lock, the lock cylinder of the mortise lock generally adopts the marble structure, the more marbles, the more anti-theft, the first marble and the last marble is the role of opening to positioning, the marble in the middle is used as a code, the more marbles in the middle, the lower the mutual opening rate.

The lock cylinder is best made of copper material, and now many of them are made of zinc alloy, or even aluminum alloy or plastic, which is much lower in cost and easy to damage. Domestic first-line brands such as Tiannu, Huitailong, Yajie, etc. are made of copper to make the lock cylinder, after 200,000 times of life and load index tests, to ensure more than 10 years of normal service life, in line with the highest national fire level requirements.

Part V: Accessories

Accessories are an organic component of a lock, and everyone understands a truth, a thousand miles of embankment, collapse in the anthill. A small accessory can ruin a precision machine, and the small parts inside a lock are also very important.