Device for detecting derailment of trains

Abstract

“A DEVICE FOR DETECTING DERAILMENT OF TRAINS, to be attached to the car, that acts promptly in the event of derailment, fully or emergently actuating the brake system of the train; said operating device being provided only with mechanical and pneumatic signals, not requiring electric and/or radio signals. The device is comprised of a general piping ( 20 ) connected to a so-called fuse element ( 10 ), through a tubing ( 11 ); the fuse ( 10 ) being defined by a blind flange that in principle blocks the air flow; a puncture ( 12 ) being provided in the interior of said fuse, and its body being machined in such a way that a suitable region ( 4 ) for the occurrence of a disruption and the consequent fast relief of the air present in the general plumbing ( 20 ) is created.

1 . A DEVICE FOR DETECTING DERAILMENT OF TRAINS, characterized by being attached to the wagon, thus acting promptly in the event of derailment, by fully or emergently actuating the brake system of the car; said operating device being provided only with mechanical and pneumatic signals, thus not requiring electric and radio signals:  
     
     
         2 . A DEVICE FOR DETECTING DERAILMENT OF TRAINS, in accordance with  claim 1 , characterized by being comprised of a general piping ( 20 ) connected to a so-called fuse element ( 10 ), through a tubing ( 11 ); the fuse ( 10 ) being defined by a blind flange that in principle blocks the air flow; the interior of said fuse being provided with a puncture ( 12 ) and its body being machined in such a way that a region ( 4 ) suitable for the occurrence of a disruption and the consequent fast relief of the air present in the general piping ( 20 ) is created.  
     
     
         3 . A DEVICE FOR DETECTING DERAILMENT OF TRAINS, in accordance with  claim 1 , characterized in that the disruption of the fuse ( 10 ) is caused by the characteristic movement or displacement of the axle ( 30 ) as of the derailment, which moves a rod ( 1 ) which then disrupts the fuse ( 10 ).  
     
     
         4 . A DEVICE FOR DETECTING DERAILMENT OF TRAINS, in accordance with  claim 1 , characterized in that the rigid rod ( 1 ) is arcuate and wraps the axle ( 30 ) of the wheel set ( 31 ) of the car, and its ends ( 2 ) are connected to the bottom ( 3 ) of the fuse ( 10 ) that has behaved as a blind flange up to that time.  
     
     
         5 . A DEVICE FOR DETECTING DERAILMENT OF TRAINS, in accordance with  claim 3 , characterized in that the rigid rod ( 1 ) is assembled in such a way that, in normal operating conditions, it does not contact the axle ( 30 ), being provided with tolerance limits for the movement in the circulation and loading and unloading operation of the car; wherein, whenever a derailment takes place, the axle ( 30 ) of the car is moved, preferably downwards, to and fro, as indicated by the arrows ( 40 ), reaching the connecting rod ( 1 ) and making same disrupt the mechanical fuse ( 10 ) connected to the general piping ( 20 ).  
     
     
         6 . A DEVICE FOR DETECTING DERAILMENT OF TRAINS, in accordance with  claim 3 , characterized in that the fuse ( 10 ), until then a blind flange, opens into a wide passage ( 12 ), creating a fluid communication between the general piping ( 20 ) and the atmosphere, thus causing the braking action in the cars, which, depending on the car, may be an operative or emergency application.  
     
     
         7 . A DEVICE FOR DETECTING DERAILMENT OF TRAINS, in accordance with  claim 1 , characterized in that the connection to the general plumbing ( 20 ) is carried out directly, by using connections that may be proper or not, jacks along the piping or any equipment connected thereto, or any jack already for another purpose.  
     
     
         8 . A DEVICE FOR DETECTING DERAILMENT OF TRAINS, in accordance with  claim 1 , characterized in that the interconnection ( 11 ) is single for all the detectors ( 10 ), a connection for two or more detectors per car, or unitary for each detector.  
     
     
         9 . A DEVICE FOR DETECTING DERAILMENT OF TRAINS, in accordance with  claim 1 , characterized in that the fuse ( 10 ) has a conical section ( 4 ) on the bottom thereof, as a point of rupture to be broken by the displacement of the rigid rod ( 1 ), in such a way that, as soon as it is ruptured, said fuse ( 10 ) allows the air to escape fast from the general piping ( 20 ) into the atmosphere.  
     
     
         10 . A DEVICE FOR DETECTING DERAILMENT OF TRAINS, in accordance with  claim 1 , characterized in that the number of detectors per wheel set ( 31 ) varies in accordance with the installation of the device.  
     
     
         11 . A DEVICE FOR DETECTING DERAILMENT OF TRAINS, ” in accordance with  claim 10 , characterized by being defined by a detector ( 10 ) installed on the inner ends of the axle ( 30 ), next to the wheel sets ( 31 ) or in the center of the axle ( 30 ).  
     
     
         12 . A DEVICE FOR DETECTING DERAILMENT OF TRAINS, in accordance with  claim 10 , characterized in that there are two detectors ( 10 ), each one installed on the inner end of the axle ( 30 ), next to the wheel sets ( 31 ).  
     
     
         13 . A DEVICE FOR DETECTING DERAILMENT OF TRAINS, in accordance with  claim 1 , characterized by encompassing a detector ( 10 ) for two wheel sets ( 31 ), by changing the rod ( 1 ) that activates the fuse ( 10 ), without changing its basic principle.  
     
     
         14 . A DEVICE FOR DETECTING DERAILMENT OF TRAINS, in accordance with  claim 1 , characterized in that the fast discharge of the general piping ( 20 ) into the atmosphere, besides being carried out by the fuse ( 10 ), is carried out through the use of valves ( 50 ) that allow the fast discharge of the general piping ( 20 ) into the atmosphere.