Municipal well lid and disassembling tool and assembling and disassembling method thereof
Patent Information
- Authority / Receiving Office
- CN ยท China
- Current Assignee / Owner
- WENZHOU OULIN ELECTRONICS TECH CO LTD
- Publication Date
- 2018-09-21
- Estimated Expiration
- Not applicable ยท inactive patent
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Abstract
Description
technical field
[0001] The invention belongs to the technical field of municipal engineering equipment, and relates to a municipal manhole cover, a dismantling tool and a dismantling method thereof. Background technique
[0002] As an important part of the urban drainage system, the sewer pipe has become an important municipal engineering facility in urban construction. After the currently used well cover is installed and used for a period of time, the gap between the well seat and the cover body will be filled with silt, which makes it very laborious to open again. In severe cases, it cannot be opened or the well cover is damaged.
[0003] The existing application number is 201620468375.5, which is a Chinese utility model patent named "Easy Maintenance Municipal Engineering Manhole Cover", which is provided with an annular sand-proof sleeve at the gap between the well seat and the cover body, and the sand-proof sleeve is fixed with the cover body. The bottom surface of the...