A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Backflow prevention cover and backflow prevention apparatus comprising the same
본 발명은 다기능 수로-교통 겸용터널의 배수관에 사용될 수 있는 역류방지용 덮개 및 이를 구비한 역류방지장치를 위하여, 내부덮개와, 상기 내부덮개와의 사이에 중공이 존재하도록 외주부가 상기 내부덮개의 외주부에 연결되며 중공이 외부와 소통되도록 하는 관통홀인 부력방지공을 갖는 외부덮개를 구비하는, 역류방지용 덮개 및 이를 구비한 역류방지장치를 제공한다.
The present invention relates to a cover for preventing backflow and an apparatus for preventing backflow having the same, which can be used for a drainage pipe of a multifunctional watercourse-traffic combined tunnel. The present invention provides a cover for preventing backflow and an apparatus for preventing backflow having the same, comprising: an inner cover; and an outer cover including an outer circumference unit connected to an outer circumference unit of the inner cover to have a hollow between the inner and outer covers, and a penetration hole as a buoyancy preventing hole to have the hollow communicated with the outside.
Backflow prevention cover and backflow prevention apparatus comprising the same
본 발명은 다기능 수로-교통 겸용터널의 배수관에 사용될 수 있는 역류방지용 덮개 및 이를 구비한 역류방지장치를 위하여, 내부덮개와, 상기 내부덮개와의 사이에 중공이 존재하도록 외주부가 상기 내부덮개의 외주부에 연결되며 중공이 외부와 소통되도록 하는 관통홀인 부력방지공을 갖는 외부덮개를 구비하는, 역류방지용 덮개 및 이를 구비한 역류방지장치를 제공한다.
The present invention relates to a cover for preventing backflow and an apparatus for preventing backflow having the same, which can be used for a drainage pipe of a multifunctional watercourse-traffic combined tunnel. The present invention provides a cover for preventing backflow and an apparatus for preventing backflow having the same, comprising: an inner cover; and an outer cover including an outer circumference unit connected to an outer circumference unit of the inner cover to have a hollow between the inner and outer covers, and a penetration hole as a buoyancy preventing hole to have the hollow communicated with the outside.
Backflow prevention cover and backflow prevention apparatus comprising the same
역류방지용 덮개 및 이를 구비한 역류방지장치
2019-02-28
Patent
Electronic Resource
Korean
IPC:
E21F
Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels
,
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
/
E03F
SEWERS
,
Abwasserkanäle
/
F16K
VALVES
,
Ventile
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