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Little knowledge of expansion tube
As for expansion pipes, anyone who knows plumbers must know and can operate them. But for those novices, they may not know, and will not operate. Today we properly understand the little knowledge of the expansion tube.
First of all, starting from its principle, the expansion tube is mainly composed of screws, gaskets, and decorative covers. There are many styles of expansion pipes, and the fixing effects of different shapes have different effects. When the screw enters the expansion pipe, the screw is gradually compressed from small to large, causing the expansion pipe to form a large pressure, so that the screw and the expansion pipe are closely attached, causing a lot of friction. , And then it can be fixed.
Instructions
Firstly, prefabricate holes of appropriate size in the connecting base, and then implant the screws into it. Finally, the tube is expanded to fix it with the substrate.
Use occasion
Expansion pipes can be used for hollow walls, ceilings, plywood, thin plates, etc., generally used for decoration, construction, highway fences, water and electricity installation, household appliances, sanitary ware, fire-fighting facilities, door and window installation, lighting, oil well fields, etc. wide. Expansion pipes are stable in performance, easy to install, and low in cost. They are the object of choice for many users. It greatly meets the needs of fast installation of small objects.
Precautions
1. The length L of the expansion tube, which involves the choice of the length of the metal screw.
2. The outer diameter D of the expansion tube, which involves the choice of the drill bit of the percussion drill drilled on the wall or wall panel.
3. The inner diameter d of the expansion tube, which involves the choice of the diameter of the metal screw. The quality of the object to be hung depends on the thickness and length of the metal self-tapping screw. The screw is matched with the type corresponding to the length and diameter of the plastic wall plug expansion tube. The length of the metal self-tapping screw must be greater than the length of the plastic expansion tube.
