Track-changing device for a pneumatic transport vehicle

A track changing device for a pneumatic transport vehicle comprising:

• a track-changing device for use with a two-way pneumatic propulsion system which vehicles (1) travel over railway tracks (5) laid over an elevated track (6) supported by pillars (7), having in a center of a top portion of a superstructure of the elevated track (6) a longitudinal slot (9) with a seal (8) wherein a mast (3) of a propulsion plate (4) is able to move freely along a path, and wherein the track-changing device comprising four beams which constitute a superstructure of the elevated track, being two turnout beams (6′) and two straight beams (6″), whereby the four beams are permanently connected to each other and to the pillars (7) to form a monolithic hyperstatic structure, being fixed on the superstructure of turnout beams (6′) mobile rails (16, 18 and 21) and respective drive mechanisms (17, 19 and 20) and locking mechanisms (15), and having a section isolation valve inside a propulsion duct (12) of the turnout beams (6′);
• a sealing terminal (14) of the longitudinal slot (9) of the turnout beam (6′) which is executed in flexible material and fixed on a complementary metallic part (13), in an opposite direction to a track bifurcation, which enables a derivation from a single seal (8) of a slot of the longitudinal duct (9) on the straight beam (6″) to a second sealing of a propulsion duct (12) on the turnout beam (6′);
• and wherein the said sealing terminal (14) being in one piece which proximal end presents only two “V” shaped profiles laid down which are opposite and separate (14a), with an intermediary part comprising a vertical membrane (14b) which begins a bifurcation of sealing tabs of each slot of the turnout beam (6′) and a distal end having a horizontal membrane (14c) which interconnects two sets of pairs of sealing tabs for two slots of the turnout beam (6′), whereby in the sealing terminal's distal end there is continuity to the common shape of the seal (8) profile by an in loco seam.