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Detailed explanation of expansion bolts

Jun 23, 2018

Detailed explanation of expansion bolts

When using, first use the impact drill (hammer) drilled holes in the corresponding size of the fixed body, and then bolts, expansion tube into the hole, tighten the nut can make the bolt, expansion tube, mounting parts and fixed body Between the tight expansion into one.

After being tightened, it will expand. There is a big head at the tail of the bolt. A round pipe with a diameter slightly larger than the bolt is put on the outside of the bolt. There are several openings in the tail part. When the bolt is tightened, the tail of the big head is brought into the open pipe. The purpose of the rooting is to fix the bolts on the ground or the wall by smashing the tube and expanding it.

The principle of the expansion screw fixing: the expansion screw is fixed by using the rake-shaped slope to promote the expansion of the friction to produce a binding force, to achieve a fixed effect. Screws are threaded at one end and vertebral at one end. The outside of the bread is made of steel. There are several incisions in the iron cylinder. Put them together into a hole in the wall. Then lock the nut. Pull the nut outwards and pull the vertebra into the steel cylinder. The cylinder is stretched open, so it is tightly fixed to the wall. It is generally used for the fastening of fences, awnings, air conditioners, etc. on cement, bricks and other materials. However, its fixation is not very reliable. If the load has a large vibration, loosening may occur, so it is not recommended for installing ceiling fans.

The principle of the expansion bolt is to hit the expansion bolt into the hole in the floor or wall, tighten the nut on the expansion bolt with a wrench, the bolt goes outside, and the outer metal sleeve does not move, then, the big head under the bolt put The metal sleeve expands open so that it fills the entire hole. At this point, the expansion bolt cannot be extracted.

Dyshine Industry Co.,Ltd

Address: Room 17A,BLS Building,Haining Road 338# Zhejiang Haining

Manager: Allen Liang

Tel: +86-573-80705030


E-mail: allen@dyfastener.net

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Room 17A,BLS Building,Haining Road 338# Zhejiang Haining

Tel: +86-573-80705030


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