The annular magnet is embedded into an inner cavity of the rubber ring, the plastic cover disk is covered at the back face of the rubber ring. 将环形磁铁嵌入橡胶圈的内腔中,再将塑料罩盘盖在橡胶圈的背面。
The utility model is composed of an annular magnet, a rubber ring and a plastic cover disk. 它是由环形磁铁,橡胶圈和塑料罩盘组成的。
When the utility model is in use, when the cover is open, the permanent magnet on the dialing rod on the cover is far from the reed magnetic switch, the switch is disconnected; 本实用新型使用时,当旋开锅盖时,锅盖拨杆上的永久磁铁远离干簧磁控开关,开关断开;