一种具有高度调节功能的防沉降井盖及其方法
By introducing rubber bushings and adjusting screw structures into the manhole cover system, the problems of settlement and breakage of the manhole cover system under heavy loads have been solved, the height adjustment and support of the manhole cover have been realized, and the seismic resistance and anti-slip performance of the system have been improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANHUI FEILONG NEW MATERIAL CO LTD
- Filing Date
- 2023-04-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing manhole cover systems are prone to damage under heavy loads, leading to manhole cover settlement, displacement, and vibration, which affects passenger comfort and driving safety. Furthermore, the connection between the manhole ring and the road surface is prone to breakage due to friction.
The manhole cover body and manhole ring body are located above the rubber bushing. The rubber bushing reduces the friction between the manhole ring and the road surface. The height of the manhole cover is adjusted by adjusting screws, limit screws and support springs. Combined with the top support rod and support pulley structure, the manhole cover is supported to prevent settlement and breakage.
It effectively prevents manhole cover settlement and manhole ring breakage, reduces maintenance costs, improves passenger comfort and driving safety, and is easy to operate and maintain.
Smart Images

Figure CN116446454B_ABST