A municipal road manhole with protective device

Abstract

The invention relates to a municipal road inspection shaft with a protection device, which includes a inspection shaft body, which is provided with a protection device near the mouth of the inspection shaft. Connect the anti-falling net to the buffer assembly of the installation ring. The inner ring of the installation ring is provided with several installation grooves for installing the buffer assembly along the circumference. The buffer assembly includes a sliding block, a pull rope, a limit ring and a first elastic piece. Slidingly installed in the installation groove, one end of the pull rope is fixed on the sliding block, the other end extends out of the installation groove, the limit ring is sleeved in the notch of the installation groove, the first elastic member is sleeved in the pull rope, and one end of the first elastic member is connected to the It is fixed on the sliding block and the other end is fixed on the limit ring; the edge of the anti-fall net is provided with a connecting rope corresponding to the pull rope, and the connecting rope and the pull rope are detachably connected through the connecting component; the installation ring is detachably installed through the installation component In the manhole body. The invention has the effect that the anti-falling net is not easy to break.

Description

technical field [0001] The invention relates to the technical field of municipal roads, in particular to a municipal road inspection shaft with a protective device. Background technique [0002] At present, with the development of society and the increasing number of buildings, there are many inspection wells distributed on municipal roads. Inspection wells, also known as manholes, are underground spaces for the transfer and control of urban underground pipelines, and inspection wells are usually covered by inspection well covers; Because there will be people walking on the road, when the inspection shaft cover is lost or the construction personnel perform maintenance work in the inspection shaft after the inspection shaft cover is opened, it is necessary to protect the inspection shaft mouth to prevent pedestrians from falling into it while driving. Inflict damage in the manhole. [0003] Existing, in the inspection shaft near the mouth of the inspection shaft, a netted an...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: the installation method of the anti-fall net is a rigid installation, and when a pedestrian falls into the anti-fall net, the self-buffering capacity of the anti-fall net is limited, and it is easy to cause the joint of the anti-fall net to break , especially when the falling pedestrian is relatively large, the possibility of breaking the anti-falling net without buffer connection will be greater

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