Convex manhole cover for escape opening of comprehensive pipe gallery
A technology for comprehensive pipe gallery and escape opening, which is applied in the field of convex manhole cover of comprehensive pipe gallery escape exit, which can solve the problems of blocked escape passage, difficult to open, easy to accumulate sundries, etc. The effect of material usage
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[0024] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0025] like figure 1 As shown, this embodiment provides a convex manhole cover for the escape opening of a comprehensive utility gallery, including a base 1 and a cover plate 2 hinged on the base 1 and capable of opening and closing. The cover plate 2 is a pyramid-shaped shell structure with multiple sides. This structure has the characteristics of high middle and low edge, and each side is a slope surface inclined from the center to the periphery. The cover plate 2 of this structure is not easy to The accumulation of sundries is formed, so as to solve the hidden danger that it is difficult to open from the inside of the comprehensive pipe gallery due to the accumulation of sundries on the cover plate 2, and prevent people from escaping safely.
[0026] The thickness of the cover plate 2 can be equal from the center of the cover plate 2 to...
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