Contact rail gauge, also called third rail gauge, is a special measuring instrument for measuring the guide height of contact rail (the vertical distance between the horizontal surface of contact gauge track) and the pull out value (the horizontal distance between the inner surface of contact gauge track) in rail transit.

Auxiliary measuring device for digital display gauge, including rolling measurement structure detachably installed at both ends of the bottom of the main body of the gauge and a push mechanism installed on the middle side of the digital gauge for pushing the gauge to roll. , the rolling measurement structure includes an installation body, the installation body is provided with an installation groove for fixing with the fixed end or the measuring end of the gauge ruler body, and the front and rear ends of the installation body are respectively set on one side of the installation groove. There is a measuring wheel, the middle part of the side of the installation body away from the installation groove is provided with a supporting wheel for supporting the main body of the gauge ruler, and the front and rear ends are provided with rolling wheels for walking on the rail surface. The structure is simple and the design is reasonable, so that the gauge gauge can be implemented on the rail, and it can meet the requirements of gauge measurement without repeated adjustment, so that the line inspection is changed from point measurement to line measurement, and the full coverage of line inspection is realized.

Contact Rail( Third Rail) Gauge has the advantages of customizable,foldable and easy to carry,insulation.

A gauge gauge used to measure the minimum distance between the tops of the two inner brake rails, including a gauge gauge body, a sliding gauge block, a fixed gauge block, a gauge and a handle. The handle is installed in the middle of the gauge gauge body. The bottom of the main body is provided with a chute, and there are pull rods, sliders and spring mechanisms in the chute. The pull rods are installed in the slot of the main body of the gauge gauge. The gauge block clamps the brake rail through the spring tension in the chute, the fixed measuring block is located on one side of the bottom of the main body of the gauge ruler, and the main body of the gauge gauge is also provided with a ruler. Compared with the existing measuring tools, the utility model has the characteristics of simple measurement, high measurement accuracy, no human factors, and convenient carrying.

unit(mm)