A site benchmark for construction project management

Abstract

This utility model discloses a site marker for construction engineering management, including a marker body. An extension rod is slidably connected to the inner wall of the marker body. A pressure plate is fixedly connected to the outside of the extension rod. A rotating rod is rotatably connected to the inner wall of the pressure plate. A locking block is fixedly connected to the outside of the rotating rod. Two scraper rings are slidably connected to the inner wall of the marker body. Two top rods are fixedly connected to the outside of each of the two scraper rings. Each of the two top rods is fitted with an elastic element. A connecting plate is fixedly connected to a nearby end of each top rod. In this utility model, the extension rod is installed by pressing down on a knob, and the knob can be rotated to lock the locking block into the inner wall of the slot, thus locking the extension rod. Simultaneously, the extension rod can cooperate with the knob so that when the extension rod is retracted, the elastic element in the scraper ring ensures that the scraper ring is tightly pressed against the outside of the extension rod to clean dust and dirt.

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