The product is divided into ball ball lock and blade ball lock according to lock structure.
The product is divided into cylindrical ball lock, three-bar ball lock, fixed lock and pulling glove lock according to the lock structure; the locking device is divided into button, knob and pressing knob.
The product is divided into two types according to its different usage requirements, such as performance, safety, practicability and final usage effect.
It is named according to its performance, usage occasions, functions and characteristics.
The safety lock tongue can be opened by the inside and outside handles. When the outer handle is locked by the inner locking device, release it with the key on the outer handle or by turning the locking device on the inner handle; when the outer handle is in permanent security, it must be opened with the key; the door can not be closed with a button or other locking device.
The lock tongue can be opened by the inside and outside handles. The outer handle can be locked by an internal button or other locking devices, and can be released by an external emergency device. When the inner handle rotates or the inner handle is not locked before this, the locking device should be released automatically, and the emergency relief device should allow the outer handle to open.
The lock tongue can be opened by the inside and outside handles. When the external handle is locked by the internal knob, the external handle should have an obvious display, and the external emergency device and knob must be manually rotated to release the external handle.
Channel lock (Passage lock):
The lock tongue can be opened at any time by the inside and outside handles.
Closet lock (Kitchen lock ):
The safety lock tongue can be opened by the key on the outer handle.
Balcony or yard lock:
The safety lock tongue can be opened by the inside and outside handles. The outer handle can be locked by an inner button or other locking device, and can be released by turning the inner handle or closing the door.
The square tongue (or cylindrical tongue) can be opened at any time by the internal or external keys or the inner knobs.
Handle lock ( Handle set lock) :
The lock tongue of the handball lock can be opened at any time by the outside button or the inside handle.
Function and structure:
Product function and structural characteristics according to the "People's Republic of China Light Industry Standard Spherical Door Lock QB/T 2476-2000".
Button, press knob or knob to press in or rotate insurance, should be locked. When the lock device is in permanent safe condition, the external handle must be released with a key or emergency release device; the permanent lock device must be removed manually.
When the key is inserted into the handle with locking device and rotated, the locking device shall play a role and shall not fail.
When the lock tongue is pressed to the lock position, the lock tongue with a safety post extends not less than 6.4 mm, and the safety post extends not less than 5.6 mm.
Hand according to the "People's Republic of China Light Industry Standard Spherical Door Lock QB/T 2476-2000" (lock state and non-lock state) for clockwise and counter-clockwise test, can still be used normally.
Axial tensile force of the handle
A grade 1400N and B level after 1000N, still can be used normally.
Radial static load of handle
A grade 1150N and B level after 800N, still can be used normally.
Lateral static load of lock tongue:
Ball lock: Class A bears 2700N, Class B bears 1500N; Fixed lock: Class A bears 1900N, Class B bears 1400N, can still be used normally.
After the bolt is insured, the axial static load is:
Ball lock: Class A bears 350N, Class B bears 300N; Fixed lock: Class A bears 500N, Class B bears 350N, can still be used normally.
Fixed lock knob:
After being subjected to 500N static tension, it can still be used normally.
Fixed lock two screw holes:
No damage is observed after bearing 1500N axial tensile force.
Knob lock button:
After being subjected to 300N static load, it can still be used normally.
Various riveting parts of locks.
No loose parts should be tightly matched.
Ball lock: Class A is not less than 200000 times; class B is no less than 100000 times. Fixed lock: Class A is not less than 100000 times; B level is no less than 60000 times.
The opening torque of the spherical handle and the fixed lock knob is not more than 1N.m, that of the L-shaped handle is not more than 3N.m, and that of the pulling glove lock button is not more than 40N.
The key unlocking torque is not greater than 1 N. M, opening rotation is flexible, no resistance rolling phenomenon.
The pull-out static tension of the key should conform to the "PRC Light Industry Standard for Spherical Door Lock QB/T 2476-2000"
The locking tongue can be installed on the lock body positively and negatively, and its closing force is not more than 30N.
Lubricant should be added to the active part of the lock.
The surface roughness Ra of polished parts is not more than 0.8 micron, that of sanded parts is not more than 6.3 micron, and that of machined parts is not more than 12.5 micron.
The defects on the surface of the lock body are not allowed to be affected obviously.
The key is smooth and clean, and the trade mark is clear and correct.
Corrosion resistance of Electrodeposited layers on exposed metal surfaces shall conform to the "Standard for Light Industry of the People's Republic of China QB/T 2476-2000 for Spherical Door Locks"
The hardness of the organic coated pencil should reach 2H.