A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Safety manhole
The present invention provides a safety manhole, comprising: a main manhole cover part made in a form of a board with a preset thickness and formed with a plurality of through holes; and an auxiliary manhole cover part made in a form of a board with a same area as the main manhole cover part and at the same time having a smaller mass than the main manhole cover part. Thus, the present invention can provide the safety manhole that has a simple structure with a small number of parts and is very easy to install and maintain.
본 발명은 기 설정 두께를 가지는 보드 형태로 이루어지며 다수 개의 관통공이 형성된 메인맨홀뚜껑부; 및 상기 메인맨홀뚜껑부와 동일한 면적의 보드 형태로 이루어짐과 동시에 상기 메인맨홀뚜껑부보다 작은 질량을 가지는 보조맨홀뚜껑부;를 포함하는 안전 맨홀을 제공한다.
Safety manhole
The present invention provides a safety manhole, comprising: a main manhole cover part made in a form of a board with a preset thickness and formed with a plurality of through holes; and an auxiliary manhole cover part made in a form of a board with a same area as the main manhole cover part and at the same time having a smaller mass than the main manhole cover part. Thus, the present invention can provide the safety manhole that has a simple structure with a small number of parts and is very easy to install and maintain.
본 발명은 기 설정 두께를 가지는 보드 형태로 이루어지며 다수 개의 관통공이 형성된 메인맨홀뚜껑부; 및 상기 메인맨홀뚜껑부와 동일한 면적의 보드 형태로 이루어짐과 동시에 상기 메인맨홀뚜껑부보다 작은 질량을 가지는 보조맨홀뚜껑부;를 포함하는 안전 맨홀을 제공한다.
Safety manhole
안전 맨홀
KIM HYEONG JOO (author) / PARK TAE WOONG (author) / KIM HYEONG SOO (author) / JEONG YOUNG SOUNG (author)
2023-06-01
Patent
Electronic Resource
Korean
IPC:
E02D
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