Railway Switch Blade Drainage and Heating Design

The sliding plate is segmented into a first sliding plate and a second sliding plate positioned at different heights. The first sliding plate supports the tongue at a higher position while the second sliding plate provides additional support at a lower position. This segmentation allows the tongue to be supported continuously while preventing dirt and water from penetrating into the tongue device chamber, as the elevated support position creates a barrier against contamination.

The sliding plate is divided into two distinct segments at different heights. The first sliding plate is positioned at a higher level to provide primary support for the tongue, while the second sliding plate is positioned at a lower level to facilitate drainage. This segmentation enables the tongue to maintain its higher profile and self-supporting capacity while ensuring that water and dirt can drain effectively through the lower sliding plate, preventing accumulation and corrosion.

The solution moves the support function from a two-dimensional plane to a three-dimensional arrangement by positioning the first and second sliding plates at different vertical heights. This dimensional change allows the actuating device to engage the tongue through the opening in the first sliding plate while the second sliding plate, positioned at a lower height, acts as a barrier that prevents dirt and water from the roadway from entering the tongue device chamber. The vertical separation creates a protective barrier that does not interfere with the actuating connection.