一.第一代使用的卡扣材质比较薄，长期使用中，有卡扣断裂的现象，针对此问题我司技术部经过研究，从2016年7月5日开始，更换加厚材质、加大的卡扣。经过反复试验，没有出现卡扣断裂的现象，这是第二代卡扣。 CARDS used one. The first generation of buckle material is thin, use for a long time, have a card buckle fracture phenomenon, our technical department for this problem through the research, starting from July 5, 2016, replacing thickening material, increase card buckle. After trial and error, there is no such thing as a card buckle. This is the second generation card. 二.在2016年10底，有部分经销商反映第二代卡扣出现松动、卡不紧的现象： At the end of 2016, some dealers reported that the second generation of card buckles appeared to be loose and stuck. 分析原因：1.由于吸油烟机在使用过程中卡扣处沾上油迹，使卡扣在有油润滑的情况下偶尔出现卡不紧中间小玻璃的现象，或用户在使用过程中没有按规范操作，只是用手轻轻推吸油烟机的小玻璃下去，造成卡不紧。 Analysis of reasons: 1. Because the oil absorption in use process card buckle with oil stains, the card buckle in under the condition of oil lubrication occasional card is not tight the phenomenon of middle small glass, or users are not in use process according to standard operation, only gently push oil absorption of small glass, card is not tight. 2.目前我司使用的是加硬卡珠，由于加硬卡珠寿命时间长，所以在使用过程中正确操作方法是双手拿住小玻璃左右两边稍微用点力度按下小玻璃，听到“咔嚓”一声，卡扣就卡到位了。 2. Currently we are using the add hard card bead, because of the hard card bead life time is long, so the right operation method is in the process of using both hands hold small glass both sides but use a little strength to press the small glass, hear a "click" sound, card buckle card in place.