Know some lock knowledge

Know some lock knowledge

1. When the door is closed violently (mostly closed by a sudden gust of wind), the horn lock tongue is easy to get off the hook, or the door is twisted or deformed or the bolt fixing screw is loose and protruding, and the door frame cannot be opened.
  A. If the speaker is locked, please refer to the article “What to do if it is locked”.
  B. In the case of auxiliary locks, (mostly installed on iron doors and vulcanized copper doors), the bolts or handle bolts fixing screws are loose and protruding, and the door frame cannot be opened. (Find a flat-blade screwdriver, pull the protruding screw from the door gap, and back inward to locate it).
   2. It is difficult to turn the handle or key when a foreign object is stuck. (Please make sure that the door is opened inward or outward. When standing inside, open the door—pull the door forcefully inward, and push the door outward when you open it inward. When a person is standing outside, open the door—the door is forced to open. Push in, pull the door out when opening inward. It can reduce the card force and twist the door easily). Hangzhou Daguan Locking Company Hangzhou Housekeeping Company
3. When you ask the locksmith to open the lock, you say that the lock cannot be opened if it is broken. Do you believe it? At this time, you can find another company to open the lock. I often encounter that after the lock is opened, the master tells you to open the second I was surprised that I opened it so quickly. The last one could not be opened after a long time. It is said that the lock is broken and cannot be opened. You need to replace it with a new one (a better lock is maintained and under normal use. Years are okay) Some lock shops will ask for a new one on the excuse that they cannot be opened, some are technical problems, and some do not want to spend too much time unlocking. (It is best to find a fixed, reliable lock shop service)
4. When the car door lock cannot be opened with the key, there are two situations: a. It cannot be opened with the key from the outside, and when the lock lever or button switch can be pulled from the car, the door can be opened. In this case, the Hangzhou Daguan unlocking service is locked. The core driving lever is taken off, (it is easiest to take off the locking core driving lever when you ask someone to drive the door lock by yourself or use a pull hook). (Remove the decorative panel on the inner side of the door, drive the lock core to move the lever, and install the hook back in position) b. Open with a key from the outside to drive the lock lever (the lock lever can be seen to move up and down in the straight type, and left and right in the horizontal type. When you can’t see it, you can hear the sound of the switch action) or you can pull the lock lever from the inside, but you cannot pull the door. In this case, the unlocking tool is a failure of the door lock, and the inner spring of the lock is broken or stuck inflexibly.
   1. Don’t get the lock in the rain. Flush, because there is a small spring inside, which will rust and fail.
   2. Do not have a large chain of locomotive keys. They are connected in series. When the locomotive is running, the key will wear out and the key will slip out if the key shakes and adds weight.
   3. When the key is not easy to insert or withdraw, spray some light lubricating oil, (such as w40) the oil that cannot be too thick will not move.
  4. Some locks cannot be refueled, (rarely) such as the locks of mother and child beads.
   5. When the door lock does not open or close, spray some lubricating oil on the diagonal tongue.
  6. ​​For automatic locks (three-stage, four-stage, five-stage), there must be some slight gaps and not too tight, (for example, you need to push the door by hand when unlocking). The lock is easy to break.
  7. The door gap should not be too big, it is easy to be opened and shaking.
   8. The anti-theft door has a lattice type, and the anti-theft wire is inserted into the diagonal lock handle of the automatic lock to pull the door open.
  9. Don’t use the key to open the door directly, turn the key to open the door lock, and then pull the key to open the door without returning to the original position. The lock will soon protest to you and say goodbye.
  Introduction of various civilian locks
  1. Padlocks: divided into copper padlocks, iron padlocks and password padlocks. The main specifications are 15, 20, 25, 30, 40, 50, 60 and 75mm.
  2. Drawer lock: It is divided into copper drawer lock, copper drawer lock, aluminum core drawer lock and left and right cabinet door locks. The main specifications are φ22.5mm and 16mm.
3. Pinball door locks: divided into single-insurance door locks, double-insurance door locks, triple-insurance door locks and multi-insurance door locks. Its main brands are “Niutou” and “Shuanggou”, “horse brand”, and “Shuanggou” made in Shanghai. Good harvest”.
  4. Mortise door locks: also called anti-theft door locks. They are divided into steel door mortise door locks and wooden door mortise door locks. Among them, steel door mortise door locks are mainly two brands: “Shenshi” and “Horse”.
  5. Ball type door locks: divided into copper type ball type door locks and three-tube type ball type door locks, as well as private room locks. The ball-type door locks are produced in Guangdong as the leading position in the country. Hangzhou Daguan unlocking company price
  6. ​​Color locks: divided into glass door locks, mortise locks, button locks, electrical box switch locks and chain locks, cam locks, etc.
  7, electric control lock: magnetic card lock, IC card lock, password lock.
   There are various shapes and styles of anti-theft safes on the market. Consumers can choose according to their needs. Regardless of which styles of anti-theft safes they choose, consumers should pay attention to the following aspects:
   1. The color of the paint film (or spray film) on the outer surface of the anti-theft safe box should be uniform, and there should be no obvious cracks, gas gowns, spots and other defects.
   2. The electronic anti-theft box should be equipped with at least one electronic anti-theft lock, but no magnetic card lock is allowed.
  3. When using carbon structural steel plate to make the box (and door leaf), the tensile strength of the steel plate is not less than 345Mpa. The thickness of the steel plate: Class A is not less than 6mm; Class B is not less than 8mm. When using low-alloy high-strength structural steel plates to make the box (and door leaf), the thickness of the steel plate: Class A is not less than 4mm; Class B is not less than 6mm.
   4. The opening angle of the safe box door is not less than 90 degrees. The maximum gap between the door leaf and the door frame is not more than 2mm. The flatness of the upper surface and the two side surfaces of the box body is not more than 2.5mm, and the flatness of the door leaf surface is not more than 1.5mm.
   5. The electronic code lock can be changed arbitrarily, multiple codes and multi-level management can be used, and the wrong code is entered three times, automatically locked or alarmed.
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