| 摘要 |
A manhole access way security apparatus and method for using the security apparatus are disclosed. The inventive security apparatus includes an insert, at least one locking pin and a locking mechanism each interconnected to allow users to easily and quickly install a security barrier under a manhole, handhole or vault, and thereby prevent authorized access through the manhole, handhole or vault. The inventive apparatus uses an insert that may either sit on the existing manhole frame rim under the manhole cover, or if there is insufficient clearance on the manhole frame rim, brackets may be installed under the manhole frame upon which the insert rests. In either configuration, the insert is secured in place under the manhole cover by one or more locking pins that extend radially through the insert and are then locked to the insert. The limited elements of the inventive security apparatus provides users with an easy method of increasing security of underground infrastructure without the need for extensive modification or alteration of existing manhole structures.
|
