Mechanical lock type antitheft manhole cover

Abstract

The invention discloses a mechanical lock type antitheft manhole cover. The mechanical lock type antitheft manhole cover comprises a manhole cover body and a hole mouth seat which are used in cooperation. A vertical opening is formed on the axis of the manhole cover body. A vertical column is movably connected in the vertical opening. The lower end of the vertical column extends to the lower portion of the manhole cover body and forms a rotating plate in an integral forming manner. A containing cavity is formed in the vertical column. A T-shaped position adjusting rod is in sliding connectionin the containing cavity. The upper end of the position adjusting rod penetrates through the containing cavity and is symmetrically hinged with two first stirring blocks. Two second stirring blocks are symmetrically hinged to the upper end of the vertical column. An angle disc is concentrically embedded at the upper end of the manhole cover body. The mechanical lock type antitheft manhole cover has the advantages that the unlocking code is set by setting the positions of a pressed groove, an inserting opening and an abutting block relative to the axis of the manhole cover body and the rotatingangle of the rotating angle relative to the manhole cover body, operators need to pay attention to difference production during mass production, the antitheft effect is good, operators need to carrya key during unlocking, mechanical unlocking is achieved according to data, and operation is more convenient.

Description

technical field [0001] The invention relates to the technical field of manhole covers, in particular to a mechanical lock anti-theft manhole cover. Background technique [0002] The manhole cover mainly shields the sewers on the road to ensure the safety of vehicles and prevent pedestrians from falling. In order to have sufficient carrying capacity and convenience, most current manhole covers use metal manhole covers of a certain quality. Metal manhole covers have a higher risk of being stolen than other material manhole covers because of the recyclability of their manufacturing materials, and the existing manhole covers have poor anti-theft performance. , it needs to be improved urgently. [0003] In order to solve the above problems, we propose a mechanical lock anti-theft manhole cover. Contents of the invention [0004] The purpose of the present invention is to solve the problems in the background technology, and propose a mechanical lock type anti-theft well cover....

AI Technical Summary

Problems solved by technology

In order to have sufficient carrying capacity and convenience, most current manhole covers use metal manhole covers of a certain quality. Metal manhole covers have a higher risk of being stolen than other material manhole covers because of the recyclability of their manufacturing materials, and the existing manhole covers have poor anti-theft performance. , it is urgent to improve the

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