首页>
外国专利>
Anti-tamper fire hydrant stopcock opener has rotary square to receive key equipped with moving feeler and inner nut to engage with lower bearing
Anti-tamper fire hydrant stopcock opener has rotary square to receive key equipped with moving feeler and inner nut to engage with lower bearing
展开▼
机译:防篡改消防栓旋塞阀开启器具有旋转方形以容纳钥匙,该钥匙配备有活动塞和内螺母以与下部轴承接合
展开▼
页面导航
摘要
著录项
相似文献
摘要
The hydrant stopcock opener, turned by a key (1) with a square socket (11), consists of a rotary square component (21) to receive the socket, having an inner sliding feeler (24) with a nut (23) on its lower end to engage with a recess (26) in a lower bearing (25). The nut and recess have magnets or a spring to hold the nut in a normally disengaged position, the nut being engaged when the feeler is pressed down by the key.
展开▼