The lock cylinder of the anti theft door can t pop up, how to repair it is very anxious to get on th

It is recommended to find a professional lock repairer to help you overhaul it.

In accordance with the provisions of the General Technical Conditions for Anti-theft Security Doors, a qualified anti-theft door should meet the following standards:

1. Grade A. Within 15 minutes, a door that cannot be pried open with ordinary hand tools such as chisels, screwdrivers, and crowbars, as well as portable power tools such as hand drills, is called a qualified security door.

2. Class B. Within 15 minutes, a 615 square millimeter opening is made in the door leaf using ordinary hand tools and portable power tools, which is called a qualified security door.

Main advantages: the quality of the sealing strip will affect the compactness of the anti-theft door, the sealing strip has the effect of shockproof mute, when buying, consumers can check how many times, use a relatively thin paper clip in the door crack, close the door to see if it is difficult to pull out.

The natural quality of the products of the regular brand can be guaranteed to a certain extent, because the security of the anti-theft door is not trivial, so you should try to choose the anti-theft door produced by the regular manufacturer.

Dear, don't worry, first of all, we must judge whether you are a lock cylinder or a damaged lock body, I see that the key is inserted in the lock? Can you try to unscrew it with the lock cylinder? It is whether the oblique tongue can be retracted freely, and if it can, then it is the problem of the lock cylinder, which is too tight.

This is easy to solve. Changing the cylinder or applying a little graphite lubricant to the cylinder will do the trick.

If you can't screw the key, it is very likely that the lock body is a problem or the lock cylinder fork (toggle cam) cannot move the mechanism, which may be a problem with the installation or the internal mechanical structure of the lock body is out of order.

The specific method is tested in three steps:

Step 1: Test with the key first to rule out or confirm whether it is a lock cylinder problem;

Step 2: If it is not a problem with the lock cylinder, you need to remove the lock cylinder, as shown below, try it with a handle, or use a screwdriver to try to dial the mechanism in the lock body (with a screwdriver, generally from the key to the upper left of the lock body).

Step 3: After determining the problem, look at where the problem is, if it is a lock body, it is recommended to find a professional to replace or repair it (the lock body is troublesome to hang up, if you are not afraid of trouble, it is easy to do it yourself), if the lock cylinder, find a lock cylinder on the line.

I've opened this kind of lock, but I can't figure it out, so I can only find someone to open it.