Novel sewer well cover

Abstract

The invention discloses a novel sewer well cover and provides a municipal facility with strong anti-theft function. The conventional sewer well cover is improved, an internal thread structure and a locking hook structure are utilized for realizing double anti-theft functions, and an external handle bolt, a flat open slot and a special slot structure are utilized to improve the safety and operability; the operating cost is not increased and the sewer well cover can be normally opened and closed only by several special tools; meanwhile, the sewer well cover becomes a signboard by methods such as seal cutting, laminating and the like, so the aesthetic perception is enhanced, the maintenance cost is reduced and the service life of the well cover is effectively prolonged.

Description

technical field [0001] The invention relates to municipal equipment, in particular to a novel sewer manhole cover with strong anti-theft function. Background technique [0002] At present, manhole covers have been stolen frequently in major cities across the country, causing vehicles to be stuck, innocent passers-by injured, and even fatal situations. Most criminals not only steal manhole covers, but also steal underground items (such as copper objects, communication cables, etc.), which makes the operation of the state sector difficult. There are two main types of manhole cover anti-theft methods currently adopted by the country and enterprises: one is composite materials, and the other is the setting of manhole cover anti-theft devices. Among them, the composite manhole cover is mainly made of steel, cement, plastic, etc., which has a certain anti-theft effect. However, due to the fact that the matching between the manhole cover and the well ring is difficult to achieve ...

AI Technical Summary

Problems solved by technology

Among them, neither the first nor the second type can lock the well cover and the well ring as a whole, and it is easy to open, and the iron chain and hinge can be pried off with a steel drill; the third type can be opened and taken away only by reverse rotation. The well cover; the fourth kind uses bolts and nuts to block the iron hook hole, but as long as the two ends of a bow-shaped iron wire are inserted into the two grooves under the bolt head, the well cover can be opened and taken away; Although the fifth and sixth types can lock the manhole cover and the well circle as one, they have relatively high requirements for matching space and matching accuracy. A new manhole cover needs to be cast to match it, and the existing manhole cover cannot be rebuilt, which makes the cost higher. And it can't completely solve the problem of "anti-rust and dead", and it can't be opened normally after about half a year of installation. Therefore, the above-mentioned various types of anti-theft devices for manhole covers have no obvious effect.

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