1. First, opening holes on both sides of the door head and pouring cement mortar from both sides of the door head can make the security door stronger. 2. Because the merchants will put expansion nails at the door during installation, if the poured cement mortar cannot flow in, you can mix the cement mortar with steel bars or wood and leave it at the bottom of the door.

3. The hole is too big, and there is a common thing on the door leaf after installation. When pouring cement mortar, plug the joints with local materials to prevent the pouring cement mortar from flowing out.

4. When the poured cement mortar is left in the hole at the bottom of the door frame, the hole can be temporarily closed and the mortar can continue to be filled. The inside of the security door should also be filled with cement slurry until it is filled, making the door stronger.

5. When installing the security door, you should first find it straight, hang it straight, temporarily fix it with a wooden wedge after the size is appropriate, and adjust and correct it.

6. The doorframes of some security doors need to be filled with cement to improve the anti-prying effect of security doors.

7. The push-pull security door should be flexible after installation; Flat doors should be easy to open and tightly closed.

8, security door handle, door lock, observation hole and other hardware accessories must be complete; The password protection lock, electronic password alarm system, doorbell paging and other devices on the multifunctional security door must be effective and perfect.

Extended data:

Grouting is not done well, cement flows to the door, and the security door cannot be opened; If the quality of the security door is not good, the door post poured with cement slurry may be deformed and the door may not be closed.

Therefore, when grouting, it should be noted that the cement should not be too thin but not too thick, and it should be adjusted to the feeling that it can be grasped by hand. When grouting and injecting glue, you can use the anti-theft door grouting device, first inhale cement mortar, press it into the door frame, and slowly plug it into the door from the side seam. Remember never to pour cement into the round hole of the door frame. Once the cement sets, the door won't open.

Some security door merchants can grout you, but if the merchants say no, they may be afraid of taking risks, and they can also find a mason to grout you. Some people even do it themselves, but if they have no grouting experience, the risk is greater.