| 摘要 |
The present invention relates to a hatch cover assembly for high pressure, which comprises: a block which is combined with an entrance; a hatch cover which is combined to be able to be opened and closed on the block; and a cover opening/closing unit which enables the hatch cover to be opened and closed on the block. The cover opening/closing unit includes: a vertical shaft which is combined to be able to rotate by penetrating the hatch cover; an upper handle and a lower handle which are fixated and combined individually with the upper part of the vertical shaft and the lower part of the vertical shaft based on the hatch cover; a vertical motion coupling pipe which moves up and down along the vertical shaft by being screw-combined with the vertical shaft between the lower side of the hatch cover and the lower handle and being linked with the rotation of the upper and lower handles; a plurality of vertical motion support bars which has one end to be linked with the outside of the vertical motion coupling pipe, has the other end to be arranged in the state of a free end, and vertically moves between a closed state arranged vertically on the hatch cover and an open state arranged to be inclined downwards from the hatch cover by being linked with the vertical movement of the vertical motion coupling pipe; and a vertical motion guide bar which guides the vertical movement of each vertical motion support bar by being extended to the lower part from the lower side of the hatch cover and being combined with an area of the vertical motion support bar. |
