The invention relates to a machining mute cover, it is silent features, including the well, the well ring and the well cover lock, joints, well ring and the well cover all mounting joints, the well ring mounting surface is machined surfaces, well ring and the well cover is provided with a gap of less than 1 mm. The joint surface is the joint part of each part, and the mounting surface is a fixed surface of the fixed manhole cover and the well ring. The manhole cover lock is provided with a mounting lock and an unlocking lock, and the well ring and the well cover are connected by a mounting lock and an unlocking lock. A spring pad is arranged between the lock head and the fixed flat nut. The manhole cover of the utility model has the advantages of no noise, providing a good environment for the road running, and the manhole cover is not covered by the pressure, the service life is long, the winter is easy to open, and the utility model has the advantages of good anti-theft function.
【技术实现步骤摘要】
【技术保护点】
机械加工静音井盖，它包括井盖、井圈和井盖锁，其特征在于：井圈（1）与井盖（2）结合面、所有安装件的结合面、井圈的安装面都是机械加工面，井圈（1）与井盖（2）结合处有小于1毫米的间隙。
【技术特征摘要】
【专利技术属性】
技术研发人员：徐继军，张胜，
申请(专利权)人：沈阳嘉润市政工程有限公司，
类型：发明
国别省市：
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