The door is locked on the inside, and can it be opened with a key on the outside?

Door locks directly affect the security of the home, so every family will buy reliable quality anti-theft door locks, but many people in the process of using anti-theft door locks, there will be a situation where the door lock is accidentally reversed, so can the door be opened outside the anti-lock? How to maintain the anti-theft door lock? Let's take a look!

1. Can the door be opened inside the lock?

If you use the key inside the door to lock the security door, and remove the key after the lock, in this case, you can open the security door by using the key outside the door, but if you use the key inside the door to lock the security door, rotate the key 90 degrees and do not pull out the key, even if you use the key outside the door, you cannot open the door.

Second, how to maintain the anti-theft door lock.

1. If it is a new anti-theft door lock, after two to three months of use, the key may not be able to be plugged and unplugged smoothly, many owners think that there is a problem with the lock cylinder of the anti-theft door, in fact, this is a very normal phenomenon, just send graphite powder into the lock hole, do not use any oily substance.

2. When closing the anti-theft door, you must hold the handle, and then screw the lock tongue into the lock body, close the anti-theft door and then let go, and do not hit the door hard, so as not to shorten the service life of the door lock. The sealing strip installed between the door body and the door frame has a certain elastic force, so do not roll the handle vigorously when opening the door, so as not to crack the handle.

3. Before sleeping and going out, the anti-theft door must be locked, and you must not think that someone in the house does not need to be locked, and the thief will not give up when he enters the house and steals, so he must use the key to lock the anti-theft door, so as to maintain the safety of our lives and property.

Summary: The relevant content of the anti-theft lock outside the door can be opened is introduced here, before using the anti-theft door lock, you must carefully read the instruction manual of the anti-theft door lock, so as not to cause damage to the anti-theft door lock due to improper use.

It should be locked inside and can't be opened outside, otherwise the gangsters can also open it outside.

Normal door locks can be opened with keys on the inside or outside.

Only the lock on the inside, after twisting, it can't be opened with a key on the outside, and you need to twist the lock back and forth inside to open it.

I tried, but it didn't work. I've been working on this issue lately, and I think the lock design is inhuman, and I think it should be like this:

After the outside key is locked, it can't be opened without a key inside, but it should be able to be opened if there is a key, and now the key can't be opened;

After the inside key is locked, the outside should be able to be opened with a key, but now the key can't be opened;

After the inside is locked with a knob, the outside cannot be opened with a key, and this is indeed the case now.

Do you think I'm right? We can discuss it.

The door of my house can't be opened anyway, and if you turn the safety knob, you can't open it outside.

Since it is an anti-theft door, it must not be, and after the anti-theft door is locked outside, you can only use a key to open it; Or some brands of high-end doors are locked on the outside, and you can't open it if you have a key inside, so you can only open it violently or ask the lock company.

It is difficult to open in the face of the layman, but in the face of the insider, there are still several ways to open, the first is to remove the handle panel from the takeaway, because the lock and the door panel opening are common inside and outside, so whether it is from the inside or the outside of the lock, for the insiders can be opened, but the internal anti-lock, it takes a little longer to open from the outside, and the sound will be louder.

Yangzi multi-functional security door is a wireless alarm integrated with window infrared. It can be dialed directly to the preset 6 mobile phones at the same time as the thief invades, and the dial can be cycled until the user answers the alarm** and listens to the sound in the room.

In the room, use the safety knob to lock it, whether it is a key or a technical opening, you can't open the lock from the outside of the door, and you can't enter the door, unless you pry the door; It is equivalent to a latch (deadbolt). The safety knob anti-lock is indeed a great protection for people indoors.

There is also an indoor anti-lock method is to use the key to turn twice in the indoor jack, but the insurance effect of this method is related to the lock of the anti-theft door, some locks are locked even if they are locked from the outside, they can still be opened with a key or technology, and some are not; Some people also say that this indoor anti-lock method can prevent the door from opening if the key is not pulled out after the anti-locking, and the direction of the key is not in the horizontal direction (that is, there is an angle with the horizontal plane). Specifically, it may be very related to your own doors and locks, so you have to give it a try.

In addition, the lock cylinder technology of the anti-theft door has a cycle, and it can not be longer for about 5 years, so it is very important to upgrade the door lock (that is, change the lock cylinder) in time. Be sure to change it through regular channels, for example, call the police station ** and let them recommend it. Peaceful.

If the door is keyed inside and out, it can be opened.

In the case of a key inside the door, the key can be used to open the door after removing the key, and this design is mainly to prevent thieves from climbing into the window to steal and take away large items.

The door may not be able to be opened on the outside if it is locked, you need to see what kind of door it is, if it can be opened with a key inside and outside; If it is a double-safe door or the door has only a small lock inside, it cannot be opened.

Although there are many types of vehicles, the structure is similar. This should be said to be the credit of standardization, but also the need for large-scale production lines. With the development of society, the progress of science and technology and the change of demand, the shape of railway vehicles has begun to change.

In particular, the passenger car compartment is no longer the same old face. However, their basic structure has not changed significantly, but the specific parts have a more scientific and advanced structural design.

The anti-theft door is equipped with an anti-theft lock, which can resist abnormal opening under certain conditions within a certain period of time, has a certain safety protection performance and meets the corresponding anti-theft security level. Generally speaking, the part of the lock body that can be controlled by the key on the outside, if you are inside, how to lock it, of course, can be opened. In fact, many locks can be seen that there is a small lock inside the door, and there is no keyhole outside, so you can't open it outside.

The electronic lock will be relatively better, it can be set up, and it can't be opened at all.

Just use the key inside the door to lock it, and then take the key off, in this case it can be opened with a key outside, this design is to prevent thieves from climbing in through the window to steal.

After the key is reversed in the door, the key is turned 90 degrees and not pulled out, and it is left in the lock, which can not be opened with the key outside, and can resist abnormal opening under certain conditions within a certain period of time, and has a certain safety protection performance and meets the corresponding anti-theft security level of the door.

Pick the lock cylinder: First, look at the key of the door lock. The more and deeper the "teeth" of the key, the more complex the arrangement of the door lock and the more difficult it is to open.

Second, look at the color of the door lock. The door locks are electroplated, the luster and smoothness are very good, if the color is dark yellow, it should be a copper core, this material is relatively strong, so the protection is better.

The general security door is locked on the inside, but it can't be opened on the outside, because the lock system inside is not connected to the outside, so it can't be opened on the outside.

The anti-theft door is generally divided into two types, one is the key.

The key is locked from the inside and is used from the outside.

The key anti-lock du effect is the same from.

zhi outside can be opened with a dao key.

The other is a manual lock from the inside (usually a knob), which cannot be opened with a key from the outside.

In addition, you can open the door and do your own experiment to see if it is the most accurate.

As long as it is locked with a key, it can be outside or inside the door. However, if there is a small knob in the door, after the small knob is twisted on, it cannot be opened inside and out.

Reuse the safety knob in the room to reverse the lock, whether it is made with a key or a technical opening, you can't open the lock from the door, and you can't enter the door unless you can

pry the door; It is equivalent to a latch (deadbolt). The safety knob anti-lock is indeed a great protection for people indoors.

There is also an indoor anti-lock method is to use the key to turn twice in the indoor jack, but the insurance effect of this method is related to the lock of the anti-theft door, some locks are locked even if they are locked from the outside, they can still be opened with a key or technology, and some are not; Some people also say that this indoor anti-lock method can prevent the door from opening if the key is not pulled out after the anti-locking, and the direction of the key is not in the horizontal direction (that is, there is an angle with the horizontal plane). Specifically, it may be very related to your own doors and locks, so you have to give it a try. Peaceful.