RU2036814C1 - Work-site protection and signalling device - Google Patents

Abstract

FIELD: railway transport. SUBSTANCE: connected between rails 6 and 7 is shunt made up of two current-carrying parts 1 and 2 with contact 3 of relay connected in between. Winding 8 of this relay is connected in parallel with shunt through diode 10. EFFECT: enlarged operating capabilities. 2 dwg

Description

 The invention relates to railway transport and can be used for fencing and signaling the place of repair work on the tracks.

 A device for warning about the place of work on the railroad tracks and for its enclosure, comprising a shunt connected to the rail line between the rails, consisting of two conductive parts, between which a key element is included, and a signaling device.

 The known device does not have sufficient reliability.

 The aim of the invention is to increase reliability.

 The goal is achieved by the fact that in the device for notifying the place of work on the railway tracks and for fencing, the key element is made in the form of an electromagnetic relay, and between the conductive parts there is a contact of the electromagnetic relay, the winding of which, in parallel with which a capacitor is connected, is connected in parallel with the aforementioned diode contact parallel to which the indicator is on.

 Figure 1 presents the functional diagram of the proposed device; figure 2 is the same circuit diagram.

 The device contains a shunt, consisting of conductive parts 1 and 2, interconnected via pin 3, a controlled multivibrator 4, parallel to contact 3, an alarm 5 is connected. Contact 3 is connected between rails 6 and 7. If the multivibrator 4 is made in the form of an electromagnetic relay, then in parallel winding 8 of the relay turns on the capacitor 9, and in series with winding 8 turns on the diode 10.

 The device operates as follows.

 A device is installed at the place of work by ensuring reliable electrical contact of parts 1 and 2 with rails 6 and 7.

 The voltage between rails 6 and 7, the minimum value of which is at least 1.5 V, is fed to the relay coil 8 and the signaling device 5, since at the initial moment contact 3 is open. In this case, the signaling device 5 is turned on, which indicates the presence of voltage in the rails, the presence of contact with the rails, as well as the absence of a closure of the rail line, for example, by the wheels of a train. The charge of the time-setting capacitor 9 starts, and after about 0.5 s the relay is activated and contact 3 closes.

 As a result, the rail line is bypassed, after which the trip relay is triggered and the corresponding switching occurs in the communication circuits and alerts about the busyness of this section of the track, and the signaling device 5 is shunted and turned off. In addition, after approximately 0.5 s, the capacitor 9 discharges, and pin 3 opens, and the indicator turns on, etc. Thus, these processes are repeated periodically with a frequency of about 1 Hz.

 From time to time, a shunt is placed on the rail line, ensuring that the track relay is de-energized, and, consequently, the fence of the section of the track on which work is performed, since in this case the traffic light that protects the section of the track is blocked.

Claims (1)

 DEVICE FOR NOTIFICATION OF THE PLACE OF WORK ON RAILWAYS AND FOR ITS Fencing, containing a shunt connected to the rail line between the rails, consisting of two conductive parts between which the key element is connected, and an alarm device, characterized in that the key element is made in the form of an electromagnetic and between the conductive parts a contact of an electromagnetic relay is connected, the winding of which, in parallel with which a capacitor is connected, is connected through a diode parallel to the mentioned contact, in parallel to The signaling device is switched on.