A positioning frame for detecting the spread rate of synchronous crushed rock sealing layer

Abstract

A positioning frame for detecting the spread rate of synchronous gravel seal layer includes: a first frame comprising a first side panel, a second side panel, and a third side panel connected vertically in sequence; a second frame comprising a fourth side panel, a fifth side panel, and a sixth side panel connected vertically in sequence; a first hinge hinged between the first and fourth side panels; and a second hinge hinged between the third and sixth side panels. The first and second frames are folded and flipped together via the first and second hinges, allowing the first and second frames to switch between coplanar and overlapping states. This invention enables the positioning frame to operate in both coplanar and overlapping states. It not only solves the problems of fixed volume and inconvenient carrying of traditional rigid metal trays but also improves the flexibility and efficiency of the detection work. In confined construction sites, operators can easily fold the positioning frame for rapid deployment and position adjustment, thus meeting the needs of modern road construction for rapid and accurate detection.

Images