A compact grating well lid convenient for cleaning

CN123027893APending Publication Date: 2026-11-03安徽力杰新材料有限公司
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Patent Information

Application Number
CN202611242611.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-08-17
Publication Date
2026-11-03

AI Technical Summary

Technical Problem

While maintaining the anti-fall function of small gap manhole covers, dense grid manhole covers cannot effectively prevent clogging. Existing cleaning methods are labor-intensive and pose traffic safety hazards, failing to resolve the technical contradiction between "small gap anti-fall" and "large gap anti-clogging".

Method used

Design a dense grating manhole cover that is easy to clean. By setting a retractable movable plate and a purely mechanical drive component, the movable plate is switched between extension and retraction by pedestrians or vehicles stepping on it, so as to realize the active expansion of the grating gap and self-cleaning. Combined with scraper to remove debris, a detachable collection component is used to collect debris.

Benefits of technology

It achieves automated debris removal while maintaining fall prevention function, reducing municipal maintenance costs and labor intensity. Its simple and reliable structure makes it suitable for various municipal drainage scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of municipal drainage facilities, and discloses a dense grid well lid convenient to clean, which comprises a bearing frame, a grid plate arranged in the bearing frame, the grid plate comprising a plurality of spaced grid bars, a drainage gap being formed between adjacent grid bars, and at least one movable plate arranged on the grid bars, the movable plate having an extended position and a retracted position relative to the grid bars, in the extended position, the movable plate extends into the drainage gap to reduce the width of the drainage gap. The present application sets the movable plate which can be extended and retracted, so that the grid gap can keep a small gap in normal state to ensure the anti-falling function, and actively expand when under pressure to make the sundries stuck in the gap automatically fall off, realizing the organic unity of the two states of "small gap anti-falling" and "large gap self-cleaning", and completely solving the technical contradiction between the anti-falling function and the anti-clogging function.
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