The toilet seat and the toilet seat are fixed and connected with screws, so that the toilet seat can be opened and closed on the toilet many times will not loose, fall off, so if the toilet seat is loose, it is generally the stability of the fixed screws. Expansion screws are screws inside the fixed performance is very good, generally on the card is not easy to fall off, but if you want to change the toilet seat cover then it is more difficult to do. So the toilet seat expansion screw is difficult to remove how to do?
1. The expansion screws on the toilet seat are too difficult to remove
The expansion screw of the toilet seat cover is stuck in, so once installed, it is not particularly easy to remove. You can first remove the nut on the toilet seat lid, and then use a screwdriver to tap the expansion screw in, knock the screw loose, until the screw can wiggle back and forth, and then slowly disassemble. If it still does not come apart, find the same type of expansion bolt sleeve to hold the screw, and then forcefully tap the sleeve inward. At this point, the bolt sleeve can be moved inward and loosened, usually by removing the expansion screw. If that doesn’t work, it may need to be sawed off.
2, the toilet seat expansion screw is broken inside how to do
If the expansion screw is broken inside, it cannot be removed. You can press down the rubber plug installed with the expansion screw until it falls out from the bottom, and then install the new expansion screw in the previous way. Or try twisting it with needle-nose pliers. If it doesn’t come out, try one of the above methods. There are two small holes in the tank near the toilet. Just put the expansion bolt through and screw it in the same way as installing the screws.
3. Why is the expansion screw fixed so tightly
An expansion screw consists of a screw and an expansion tube. The tail of the screw is conical, and the inner diameter of the cone is larger than that of the expansion tube. After tightening the nut, the screw moves outward and the conical part moves by axial movement of the thread, thus creating large positive pressure on the peripheral surface of the expansion tube. In addition, the Angle of the cone is small, so that the friction formed between the wall, the cone and the expansion tube self-locks to achieve a fixed effect. Spring washers on expansion screws are standard components and are called spring washers because their openings are staggered and elastic. The function of the spring washer is to Pierce the nut and flat washer with the wrong sharp Angle to prevent the nut from loosening. Flat washers are also standard and function to distribute the pressure of the nut evenly across the connected parts.
