If the expansion tube is in the wrong position, how to remove the metal expansion tube in the wall?

The nut of the expansion tube can be rotated outwards with a vise. The main purpose of this process is to create some gap between the nut and the wall and the screw. Shake it from side to side, and the expansion tube will slowly loosen and you can take it out.

If there is a leak, use electrical pliers to twist it. If not, you have to destroy the wall and take it out!

The metal expansion in the wall is the most difficult to remove, it is not as easy to get as the plastic expansion tube, because the metal is not easy to break and take out, only knock the surrounding wall a little.

The above is the metal expansion pipe, what are the components and the fixed principle of the expansion pipe into the wall; I hope it will be helpful for you to understand the structure and fixing principle of metal expansion tubes. This kind of fixation is to expand open, the card is indeed very tight, and there is no need to take it out if you don't use it in the future, and you can cut off the part that protrudes from the wall. There is a taper at one end.

Outside the bread of an iron sheet (some are steel pipes), half of the iron cylinder (steel pipe) has a number of incisions, put them together into the hole in the wall, and then lock the nut, the nut pulls the screw outward, pulls the taper into the iron cylinder, promotes the friction generated by the expansion pipe to achieve the fixed effect, it is convenient to install, and the time can be relatively long, that is, there are some difficulties in the process of demolition. It is often used in daily life for air conditioning installation, TVs, etc., which need to be fixed in brick walls and cement.

<> expansion screws that have been driven into the wall are to be removed, and you need to know how it works. The expansion screw consists of a hollow cylindrical outer iron sheet with a fan-shaped bottom screw rod strung in the middle, and there are three openings at the lower end of the hollow cylindrical outer skin. Don't use hand pliers, turn the bolt 60 degrees by hand, or use your hand to hold the nut to bring the casing of the expansion screw outward, pay attention to the fast light belt, it will cause a larger wall skin to break the skin.

If you use the hand strap to move, use the pliers to operate. The screw cap makes the outer tube of the expansion bolt fully expand, and the tighter the expansion, the more ideal it is! If you want to take the bolt out, first drive the expansion bolt rod into the wall, be careful not to let the outer tube follow, and then use pliers to pull out the outer tube!

Take it out and divide it into several parts, 1, to remove the nut, use a hammer to knock the bolt in and out of some 2, twist the outer iron sheet with pliers, take out the expansion bolt outer iron sheet, 3, and then use pliers to take out the core bolt, the expansion nail is divided into screw-in expansion nail and percussion expansion nail, if it is a screw-in expansion nail can be directly screwed out with a screwdriver, if it is a percussion expansion nail can not be screwed out, you can only pry out a little with a sharper tool first, <>

There is no doubt that it can be taken out, but it is very harmful to the wall, so it is not recommended to take it out. If you want to take it out, you must first make a hole in the wall that is the same size as the metal expansion tube after expansion, and then take it out.

The expansion tube will expand after being driven into the wall, making the metal tube more stable, and if you want to remove the expansion tank from the wall, you must knock open the wall with a larger area around the metal tube.

It can be taken out, first remove the nut and then hammer the screw in. In fact, it is to loosen the conical bottom, and then use pliers to moderately clamp the iron pliers of the outer ring, and the handle of the cement surface is upturned upwards.

Of course, you can take it out, and the way to take it out is very simple, you only need to use an electric hammer to knock off the wall around this nail.

This can only be done by knocking the wall around the expansion a little, and then loosening it left and right and then pulling it out with pliers, otherwise it will not be able to pull it out by brute force alone.