rail extrusion bar of rail part of Tunnel entry blocking device of electric type

摘要

The present invention can quickly and easily construct a rail extrusion bar for guiding a shielding enclosure on an upper portion of a horizontal bar constituting a support, and can install a chain that can transfer the shielding enclosure to the left and right, The present invention relates to a rail extrusion bar of a rail part for an electric tunnel entrance and shut-off device, in which a hot wire can be installed close to a part where a roller of a shielding enclosure moves, A rail portion provided on the horizontal bar of the support bar in the longitudinal direction, A shielding case having a shielding film connected to the upper part of the rail so as to be conveyed in the horizontal direction to the left and right, And an armature moving part installed on the upper part of the support to move the shield case to the left and right by a chain and a chain gear, And the rail portion is formed by a bolt and a nut on the front and rear sides of the connecting link body which is connected and fixed to the horizontal bar by means of a counterweight clip body.