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六月的一天,某工地青工A手持SDQ603型射钉枪进行钢窗紧固射击。打完第七枪,他拉出送弹器,装上射钉弹,推回送弹器至原位。准备装射钉时,发现活塞杆没有完全回位,不能装上射钉,便随手拿起另一活塞杆(随枪备件),用小头伸进枪膛对准枪内活塞杆。然后,右手使劲一拍活塞杆大头,想使枪内的活塞杆回位。这时,只听“呼”的一声响,随着“啊”的一声大叫,活塞杆从枪膛射出,击碎了他的右手食指骨。射钉紧固,是现代发展起来的一种新的紧固技术,它的应用越来越广泛。SDQ603型射钉枪结构简单,操作方便,作用可靠,是应用这种新技术的工具之一。其工作原理是利用射钉弹被击针打击后,弹内的火药剧烈燃烧,产生大量火药气体,推动活塞杆和射钉,将射钉
On the first day of June, a construction site Qinggong A held the SDQ603 type nail gun for fastening steel windows. After the seventh shot, he pulled out the feeder, loaded the shotgun, and pushed the feeder back into place. When preparing to install the nails, he found that the piston rod was not fully returned and he could not install the nail. He then picked up the other piston rod (with the spare part of the gun) and stuck it with a small head into the gun’s internal piston rod. Then, the right hand makes a big shot on the piston rod and wants to return the piston rod in the gun. At this time, only a “hush” sound was heard, and with the loud cry of “ah”, the piston rod shot from the gun and broke his right index finger. Nail fastening is a new fastening technology developed in modern times and its application is more and more extensive. The SDQ603 nail gun has a simple structure, convenient operation and reliable operation, and is one of the tools for applying this new technology. The working principle is that after the shot nail is hit by the striker, the gunpowder in the bullet is burned violently, generating a large amount of gunpowder gas, pushing the piston rod and shooting the nail, and shooting the nail.