Spherical door locks: 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.
The lock tongue can be opened at any time by the inside and outside handles.
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.
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".
Confidentiality: key number of different teeth Should conform to "People's Republic of China light industry standard spherical door lock QB/T 2476-2000".
It should conform to the light industry standard QB/T 2476-2000 of the People's Republic of China.
Tongue extension length
Should conform to "People's Republic of China light industry standard spherical door lock QB/T 2476-2000".
Structure of ball lock lock and others
The anti lock device should be equipped with anti sawing device.
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.
Firmness: Hand torque
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 tension of the handle:
A grade 1400N and B level after 1000N, still can be used normally.
Radial static load of the 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.
Axial static load after lock tongue is insured
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.
Each package should not affect the appearance.
Density: Key test of different teeth
The structure of the marble is tested according to 1.1 in QB/T3836-1999; the structure of the blade is checked by the dental book.
Inter-opening rate test
Test according to 1.4 in QB/T3836-1999. The number of single-row marble locks and blade locks is 50, the test time is less than 45 minutes; the number of multi-row marble locks is 100, and the test time is less than 180 minutes.
Lock tongue extension length test:
Test according to 4.5 in QB/T3836-1999.
Lock pull-out prevention measures and lock tongue anti-saw device test:
Test according to 1.5 in QB/T3836-1999.
Button, press the knob and knob to test:
After the lock is insured, it should be locked. The handle with the key must be opened with a key. The permanent insurance function must be manually removed.
Handle test with locking device function:
When the lock is locked, the lock device cannot be disabled, and the lock cannot be opened; after the lock device is released, the lock must be freely switchable.
Insurance tongue function test:
When the safety cylinder is pressed down to the 5.6mm of the tongue-locking panel, the locking tongue should be used for stopping, and the length of the locking tongue should not be less than 6.4mm.
The ball lock product fastness index inspection items are classified according to function and use occasions, see Appendix A (Appendix of the tips).
Handle torque test:
Install the lock on the simulated door so that it is in the locked state and not locked. The lock tongue with the safety column should be pressed down the safety column, and the clockwise and counterclockwise force on the external hand should be applied to the People’s Republic of China. Light industry standard ball door lock QB/T 2476-2000".
Handle axial static tensile test:
The lock is mounted on the simulated door, and the tensile tester is used to add force to the specified index in the axial direction of the handle.
Handle radial static load test:
The lock is mounted on the simulated door, and the two handles are added to the specified index at the position 50 mm from the surface of the door.
Lateral static load test of the tongue:
The lock tongue is mounted on a special fixture, and the lock tongue with the safety column should be pressed down, and the force is gradually increased to the specified index on the side of the lock tongue.
Axial static load test after bolt safety:
Test according to 2.7 in QB/T3836-1999
Fixed lock knob static tension test:
Test according to 2.3 in QB/T3836-1999.
Fixed lock two screw hole static tensile test:
Test according to 2.2 in QB/T3836-1999.
Pull glove lock button static load test:
Install the lock on the analog door and apply force to the specified index in the opening direction at 40mm from the surface of the door.
Various riveting parts, including parts test:
Hand touch detection.
Install the ball lock on the analog door, fix the outer handle with the clamp, (20~30) open and lock with clockwise (50% of the number of times) and counterclockwise (the remaining 50% of the number) at /min frequency The test reaches the specified index (if the lock is only open in one direction, only the one-way test is performed). The fixed lock is tested according to 2.1 in QB/T 3836-1999.
Handle, knob and button unlocking force test:
Install the lock on the analog door. The lock tongue with the safety column should press the safety column. The handle and the knob use the torque wrench to make the clockwise and counterclockwise force to reach the specified index; the button uses the weight to force the regulation. index.
Key unlocking torque test:
Install the lock on the analog door. The lock tongue with the safety column should be pressed down. Use the torque wrench to clamp the key for clockwise and counterclockwise force to reach the specified index.
Key pull force test:
According to 3.2 test in QB/T 3836-1999
Lock tongue positive, reverse and closing force test:
According to the test in 3.4 of QB/T 3836-1999.
Lubrication test of the active part of the lock body:
It is carried out by visual inspection (disassembly if necessary).
Surface roughness test
The surface roughness comparison sample control was used.
Lock body appearance test:
It was carried out by visual inspection.
Key appearance test:
Corrosion resistance test of electrode exposed surface of metal:
The test was carried out according to QB/T 3826. The evaluation method was carried out in accordance with QB/T 3832.
Organic coating pencil hardness test:
The test was carried out in accordance with QB/T 6739.
Test of each inclusion site:
It was carried out by visual inspection.
Product inspection is divided into factory inspection and type inspection.
The product must be inspected by the quality inspection department of the manufacturer before it can be shipped.
Factory inspection is in accordance with QB/T 2828. The sampling plan with normal inspection level I is used. The inspection sequence, inspection items, unqualified classification and qualified quality level shall be in accordance with the provisions of the People's Republic of China Light Industry Standard Spherical Door Lock QB/T 2476-2000. Upon inspection and judgment that the batch is a qualified batch, the supplier shall replace the detected non-conforming product with a qualified product before it can be delivered. If the batch is judged to be unqualified, the batch of products shall be returned to the supplier in full, and after finishing, the inspection shall be submitted again according to the strict inspection of the sampling plan.
The product shall be type tested in one of the following cases.
a) Trial-type identification of new or old products to the factory;
b) After formal production, if there are major changes in structure, materials and processes, which may affect product performance;
c) a type inspection is carried out once a year during formal production;
d) After the product is discontinued for half a year, when the production is resumed;
e) When the factory inspection result is significantly different from the previous type inspection;
f) When the national quality supervision agency proposes to carry out type inspection requirements.
Samples for type inspection shall be randomly selected from the factory inspection qualified batch.
Type inspection According to the provisions of QB/T 2829, a sampling plan of discriminant level II is adopted. The group, inspection sequence, inspection item, unqualified classification, unqualified quality level, sample size and judgment array shall comply with Table 9.
The product is tested for its robustness according to function and use.
The outer packaging shall be marked with the product name, model, trademark, product adoption standard number, manufacturer name, detailed address, product origin, quantity, quality, volume, grade, and date of manufacture.
The inner packaging shall be marked with the product name, model number, trademark, manufacturer name, detailed address, product origin, grade, and date of manufacture.
The packaging materials must be clean and dry, and the acidity and alkalinity should meet the requirements of neutral material packaging.
Each product should be packed into the box according to the specified accessory packaging, and accompanied by the product manual and certificate. Note: For steel doors and aluminum alloy doors, the solid parts must be adjusted to machine screws when ordering.
Instructions for use should include the following:
a) The product name, trademark, and product use standard number;
b) the name of the manufacturer, the detailed address, and the origin of the product;
c) Product performance, instructions for use and installation drawings.
The installation center distance and the suitable door thickness should meet the requirements.
The outer packaging must be firm, dry and clearly marked.
During the transportation process, the product is strictly prohibited from rain and moisture, so that it can be lightly loaded and unloaded.
The product should be stored in a warehouse that is ventilated, dry and free of corrosive gases. It is stored in a warehouse with a distance of 330mm from the ground and a relative humidity of less than 80%. The shelf life is one year.
How to buy:
1. When choosing a lock, pay attention to the industry brand. Don't look at the price one-sidedly. You should choose a large enterprise product with the strength of scale, stable and reliable product quality, and purchase it from the hardware store of the brand agent. It is necessary to recognize whether the lock product has a factory name, a factory address, a trademark, and whether there is a qualified inspection report issued by a professional quality inspection agency.
2. The lock should be clear in appearance, the surface is not rough, and it feels comfortable. The lock is opened and rotated flexibly, the locking device should be functional, and the feeling of failure cannot be felt when the hand is felt, and the security performance is good.
3. When selecting a lock, first pay attention to the lock that matches the opening direction of the door. Secondly, pay attention to the width of the door frame. The handle lock is not suitable for the door with the door frame less than 90mm. Generally speaking, the door lock of the house is a large luxury lock with a large panel. The thickness of the door and the lock are also an important option. It is necessary to choose the lock because of the door.
4. When the lock is purchased, the material should be moderate, and the hand should be firm and reliable. Do not use all kinds of locks made of inferior materials with low quality. The main materials of the panel and handle are zinc alloy, aluminum, precision cast stainless steel, sheet stainless steel, precision cast copper, and calcined copper. The surface treatment of the panel and the handle are mainly polishing, sandblasting, drawing, chrome plating, copper, light gold, PVD, and the like. The main materials of the lock body are cold-rolled iron plate or stainless steel, stainless steel or copper, other parts zinc alloy or iron. There are also all stainless steel locks. The lock cylinders are mostly made of copper.
The installation of the lock is also a key: the installation should be carried out in strict accordance with the product manual, to recognize the installation center distance, the scope of application and the opening method of the lock. Special care must be taken not to install on wooden doors with high humidity to prevent corrosion of harmful substances.
A. According to the "fixed distance template", the lock body and the center of the lock tongue are determined.
B. Draw a circle from the two center points, drill a 54 mm diameter lock body hole, and drill a 25 mm diameter lock body hole while drilling the bolt.
C. Remove the inner handle with the tip of the accessory.
D. First install the bolt into the hole on the side edge of the door, fasten it with screws, and then install the lock body. Insert the lock body hole from the room and fasten the tail end of the lock tongue to make the lock body and the lock tongue. stand up.
E. Adjust the position of the outer adjustment ring so that the center of the lock body is at the center line of the door thickness.
F. Put the inner glove on the handle tube, press the positioning card with the closing end of the accessory, and then push the inner handle to make the two pin.
G. If the key and the external and internal handles are flexible, the lock installation is correct.
Locks also need to be carefully maintained
1. In the process of opening and closing the door on weekdays, it is best to hold the handle and screw the lock tongue into the lock body. After closing the door, let go of the hand. Do not force the door to hit the door, otherwise the service life will be reduced. Do not wipe the lock body and handle with a damp cloth, because some metal locks will rust; alloy locks will wear away the coating and lose the aesthetic effect.
2. Always keep lubricant in the transmission part of the lock body to keep it smooth and prolong its service life. It is recommended to check once every six months or one year, and check if the fastening screws are loose to ensure the fastening.
3. When the lock is in use, periodically (half year or year) or when the key is not inserted smoothly, a small amount of graphite powder or pencil powder can be put into the lock cylinder to ensure the key is inserted and removed smoothly. However, do not add any other oil to lubricate to prevent the grease from sticking to the marble spring, causing the lock to not rotate and not open.
4. Check the matching clearance between the lock body and the lock plate. The fit between the lock tongue and the lock plate hole is appropriate. The fit between the door and the door frame is 1.5mm-2.5mm. If changes are found, adjust the position of the hinge or lock plate on the door.