Underground pipe gallery manhole cover device

By designing the linkage between the manhole cover assembly and the lifting assembly, the problem of time-consuming and labor-intensive operation caused by the lack of a force-bearing point on the manhole cover is solved, thus realizing time-saving and labor-saving operation of the manhole cover.

CN224395626UActive Publication Date: 2026-06-23WUHAN TIANCHUANG CIVICISM CONSTRUCT ENG CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN TIANCHUANG CIVICISM CONSTRUCT ENG CO LTD
Filing Date
2025-06-09
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing manhole covers are located in the sinkhole when closed, and the top surface of the manhole cover is flush with the ground. The manhole cover has no stress point, which makes it time-consuming and laborious to open.

Method used

An underground utility tunnel manhole cover device was designed, which includes a manhole cover assembly and a lifting assembly. The manhole cover assembly includes a fixing ring and a manhole cover. Through the linkage of the lifting component and the locking mechanism, the manhole cover can be rotated to open or close by pressing the manhole cover.

Benefits of technology

It enables time-saving and labor-saving opening of manhole covers, allowing maintenance personnel to easily open them without the need for tools, thus improving operational efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an underground pipe gallery manhole well lid device relates to underground pipe gallery technical field, including well lid subassembly and jacking subassembly, well lid subassembly includes fixed ring and well lid, and the fixed ring forms with the manhole passageway, and the well lid rotationally connects fixed ring to open or close manhole passageway. Jacking subassembly includes fixed shell, jacking piece and locking mechanism, and the fixed shell is located at fixed ring, and the jacking piece is slidably arranged in fixed shell and abuts well lid, and the locking mechanism is located at fixed shell and is connected to jacking piece, and the locking mechanism can drive jacking piece to slide towards well lid when being subjected to the force of jacking piece, to make jacking piece drive well lid to rotate and open manhole passageway. Therefore, only need to press well lid, and well lid exerts force to locking mechanism through jacking piece, and locking mechanism drives jacking piece to slide towards well lid, and jacking piece jacks well lid, and drives well lid to rotate and open manhole passageway, so that maintenance personnel can easily open well lid, save time and effort.
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