Anti-stealing manhole cover with Ui-lock

Abstract

The invention provides a theft-prevention inspection well lid with a cattle-ear lock, comprising a well lid 1, a lockset 2, a check ring 3, a lock shaft 4, a taper pin 5, and a well seat 6. Both external outline of the well lid 1 and the internal outline of the well seat 6 are round, the two sides of the central axis at the lower part of the well lid 1 and the left and right sides of the corresponding position on the side of the internal circle of the well seat 6 are respectively provided with one semicircular groove, a through hole is arranged above the well lid 1, the lockset 2 is put into the groove from the side of the groove opening of the well lid 1, the external diameter of the lower part of the lock shaft 4 is provided with a thread, the groove between axes at the head of the lower part of the lock shaft 4 is internally equipped with the check ring 3 for axial locating, a taper pin hole matching the lockset 2 is drilled above the groove of the well seat 6, the two sides of the lockset 2 are oval and cattle-ear-alike, when the major axis of the lockset 2 rotates to the groove corresponding to the internal ring of the well seat 6, the taper pin 5 is knocked into the pin hole matching the well lid 1 and the well seat 6 so that the well lid 1, lockset 2 and well seat 6 are firmly fixed, thus playing a role of safe theft prevention; the inspection well lid can be installed and used on inspection wells of any type.

Description

Technical field [0001] The invention relates to a protective cover for an inspection well, specifically, an anti-theft inspection well cover with a bull ear lock. Background technique [0002] The various inspection shaft protective covers currently in use have different structures, functions and materials. However, the shape of the manhole cover does not change. There are two types of manhole covers: round or with lugs. to greater danger. And the manhole lid that does not add lock often can be stolen by the thief, and once manhole has lost the manhole cover that plays protective effect, will become trap at once, causes traffic vehicle accident and brings injury to pedestrian. According to the patent bulletin, there are hundreds of patent applications for manhole protective covers with different structures that have been authorized in China, but few of them are actually popularized and used in the market, simple in structure, safe and anti-theft, and easy to manufacture an...

AI Technical Summary

Problems solved by technology

However, the shape of the manhole cover does not change. There are two types of manhole covers: round or with lugs. to greater danger

The unlocked inspection well cover is often stolen by thieves, and once the inspection well loses the protective well cover, it will become a trap immediately, causing traffic accidents and pedestrians.

According to the patent bulletin, there are hundreds of patent applications for manhole protective covers with different structures that have been authorized in China, but few of them are actually popularized and used in the market, simple in structure, safe and anti-theft, and easy to manufacture and popularize. Therefore, it is proposed It has positive and practical significance to design a new structure of inspection shaft protective cover

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