准备材料:电钻,膨胀螺丝。
1、首先,膨胀螺丝由螺丝与胀紧自管构成。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/e1fe9925bc315c60e492e5939db1cb1349547743?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
2、一般孔的深度与螺栓长度相同即可。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/bd315c6034a85edf5f8b705f59540923dd547543?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
3、然后知将螺丝拧进去即可。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/9825bc315c6034a88fe536fddb13495409237643?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
4、最后,胀紧管要全部进入墙体,只要螺纹部分够长,套管会越深越道牢固。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/2cf5e0fe9925bc31935a8fe44edf8db1cb137043?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
注意事项:
膨胀螺丝:一般说的是金属膨胀螺丝,膨胀螺丝的固定是利用楔形斜度来促使膨胀产生摩擦握裹力,达到固定效果。
作用:螺钉一头是螺纹,一头有锥度。外面包一铁皮(有的是钢管),铁皮圆筒(钢管)一半度有若干切口,把它们一起塞进墙上打好的洞里,然后锁螺母,螺母把螺钉往外拉,将锥度拉入铁皮圆筒,铁皮圆筒被涨开,于是紧紧固定在墙上。