Slot -card coil device

The utility model discloses a slot -card coil device, including coil housing, coil housing is an open -ended box body side and the base of being connected with the side, the inside cavity that is, beprovided with the coil in the cavity, its characterized in that: the side is provided with a recess and a gear spare, the recess internalization is provided with the horizontal pole, the diameter andthe groove phase of horizontal pole correspond, the length of horizontal pole is less than the length of recess, the device simple structure, convenient to use accords with people's demand. 本实用新型公开了种刷卡线圈装置，包括线圈外壳，所述线圈外壳是个开口的盒体，包括侧边及与侧边连接的底边，内部为空腔，所述空腔内设置有线圈；其特征在于：所述侧边设置有凹槽和档位件，所述凹槽内活动设置有横杆，所述横杆的直径与凹槽相对应，所述横杆的长度小于凹槽的长度；该装置结构简单，使用方便，符合人们的需求。