Door and window hardware is a collective name for various metal and non-metallic accessories installed on the doors and windows of a building. It plays an auxiliary role in opening and closing doors and windows. The surface is generally plated or coated, which is strong, durable, flexible, economical and beautiful. So which "five" gold does the door and window hardware refer to?
Building door lock
Install the lock on the door of the building that needs to be opened and closed (the entry "door leaf" provided by the industry encyclopedia) and the lock on the door frame. It is generally composed of a lock body (including bolt door and window hardware, operating mechanism and brake mechanism), a lock panel (the entry "panel" is provided by the industry encyclopedia), a handle, a cover plate and the like. Lock tongues are divided into oblique tongues, square tongues, double tongues, bead tongues, and hook tongues. The lock panel is divided into flat, left, right, and round mouths, and the handles are round, curved, and Pull the ring apart. Building door locks can be divided into door locks, room door locks, bathroom door locks, windproof door locks and toilet door locks according to the occasion of use. Divided into exterior door locks, mortise door locks and spherical door locks.
① Exterior door lock: The lock body covers the surface of the door leaf. The main products are single tongue single insurance door lock, single tongue double insurance door lock, single tongue three safety door lock, double tongue three safety door lock, double tongue double lock three safety door lock, multi tongue double lock three safety door lock Wait.
② Mortise door lock: The lock body is embedded in the door leaf from the side of the door leaf. There are two types of blade structure and marble structure. The main products are sliding door mortise door lock, single square tongue mortise door lock, single oblique tongue mortise door lock, single oblique tongue button mortise door lock, double tongue mortise door lock, double tongue mortise pressure mortise door lock, Leaf handle door lock and so on.
③ spherical door lock: beautiful appearance, easy to use, mostly used in high-grade buildings.
Hand
Used to open and close metal window sashes. Generally installed in the middle of the edge of the window sash, and some are also designed as a mechanism that connects the door and window hardware with the latch. It is usually made of brass, low carbon steel, zinc alloy, stainless steel and other materials, and its surface is plated with nickel, chromium or zinc.
Slippery
Used to position the opened metal sash. Generally installed on the lower edge of the sash, and some are also designed to be used in conjunction with the hinge. It is usually made of brass, low carbon steel, zinc alloy, stainless steel and other materials, and its surface is plated with nickel, chromium or zinc. Varieties include eye support, double arm support, rocking support, mobile support and so on.
Hinge
Also called hinge. It is the connection between door and door frame, window and window frame, which can make door and window rotate freely to open and close door and window hardware. The hinge is made up of blades and pins. The blade is made of low-carbon strip steel, which can rotate freely around the pin shaft. The pin is made of low-carbon cold-drawn steel wire or spring steel wire. Hinge varieties include common hinges, spring hinges and window hinges.
door closer
An appliance capable of automatically closing or fixing an opened door leaf in a certain position. Some have the function of hinges, and some have fire resistance. The main varieties are floor springs, door top springs, door slingshots, door controllers, door chucks, magnetic door suction heads, etc.
①Floor spring: also known as ground dragon. Installed in the lower part of doors and windows. It is made of gray cast iron, carbon steel, spring steel, cast steel and other components and assembled.
② Door top spring: Automatic door closing device that uses the spring force of spring-type spring or coil spring to close the door leaf. A buffer cylinder is installed inside to reduce the closing speed.
③ Door slingshot: punched from low-carbon strip steel, and equipped with low-carbon cold-drawn steel ejector rod, which closes the door by spring force.
④ Door stopper: a simple positioner for braking door leaf and avoiding collision between door leaf and wall. Installed in the lower corner of the door leaf, the door leaf can be positioned at any angle.
⑤ Door chuck: Fix the device to open the door leaf. It consists of a knife-shaped base and a triangular steel chuck. There are two types of horizontal and vertical. The base is made of gray cast iron; the chuck is made of spring steel, and the surface is blued.
⑥Magnetic door suction head: The effect is the same as that of the door and window hardware. It uses the suction force of the permanent magnet to fix the door leaf, and it has no noise when in use.
Handle
Installed on the door of the building to open the door. Generally installed outside the door of the building, it is required to be practical, sturdy and able to play a decorative role. The handle has various shapes such as round handle, square handle, round tube handle, double row handle and so on. Generally made of low carbon steel, stainless steel, aluminum alloy and plexiglass.
Latch
Used to latch doors and windows when they are closed. There are many types, such as common type, closed type, tube type, butterfly type pin and concealed pin, up and down long pin, and window pin. Made of low carbon steel.
Window hook
Installed on a wooden window to securely open the sash. Generally made of low-carbon steel wire, and the surface is galvanized.
Anti-theft chain
Also known as the safety chain. It consists of two chain plates and a connecting chain. The chain plates are respectively installed on the door leaf and the door frame. The anti-theft chain can limit the door leaf to a small opening angle (generally not more than 8 °), and effectively prevent outsiders from entering.
Induction door opening device
Electronics for automatic door opening. The main components are microwave or light-controlled induction contacts. It can automatically input the human body or object's induction signal to make the door leaf open or close automatically. Generally used with automatic doors and transmission machinery.
