SU94988A1 - Device for two-wire four-digit automatic blocking - Google Patents

Description

A device for a two-wire, four-digit auto-lock is proposed, in which two linear relays are used, operating: one with dc polarity, & another relay from ac.

In the known devices of this kind, alternating and direct currents are used in linear circuits to obtain different signals from different times or one or another kind of current, which does not provide a clear change of signals.

In the proposed device, in order to increase the reliability of its operation, simultaneous powering of two linear relays with constant and alternating currents at the most enabling signal is applied.

With such simultaneous powering of two linear relays in the device, a clear, sequential change of signals is provided, as well as monitoring of the operability of signal devices is carried out.

Two linear wires are required to implement this device.

The circuit diagram of the device is shown in the drawing, where in one signal installation the inclusion of all the applied auto-blocking devices is shown.

The power supply of the linear circuit for the most permissive signal (green light) is carried out by connecting two sources of current (constant and alternating) through the choke transformer DR to the linear circuit. In this case, the alternating current is supplied through the circuit: terminal C, LSR contact, winding of the choke transformer DR, terminal KOR and terminal 1 MS.

Alternating current simultaneously with direct current is supplied to the circuit: wire L1, KOHTaicr PR, obmotka DR, top contact LSR, clip I clip MB, top contact LSR, contact PR and wire L2.

Linear relays of direct current 1LR and alternating current 2LR are energized by the current: wire L1 contact LR, winding relay 1LR and through contact} LR, linear winding relay 2LR, contact PR and wire L2.

The 1LR and 2LR linear relays connected to current with their upper contacts connect the LSR linear-signal relay circuit: PB clip, 2LR contact, 1LR contact, winding of the LSR linear-signal relay and MB terminal.

When the LSR linear-signal relay is energized, a green ogbn along the circuit lights up at a traffic light: terminal C, relay relay coil, upper LSR contact, left polarized relay terminal 1 LR contact, filament lamp of green lamp 3, common return wire MC. The control of the burning of the green lamp is effected by the KOR relay.

A yellow over green light at a traffic light illuminates when direct current is applied to a linear circuit; in this case, the winding of the 2LR AC linear relay is de-energized, and the winding of the 1LR linear relay is energized. The 1LR direct current relay excited by current closes its upper contacts and, in addition, closes the left contact of the polarized 1LR core.

The excitation of the winding of the linear relay of the direct current 1LR is carried out according to the following circuit: terminal PB, upper contact LSR, winding DR, contact YAR, wire L /, through a linear circuit and the winding of the linear relay DC 1LR, wire L2, contact YAR, upper contact LSR and clip MB.

The AC source is disconnected from the line circuit by the relay contact KOR.

The excited linear 1LR direct current relay with its closed contact 1LR excites the winding of the LSR linear-signal relay over the circuit: terminal PB, contact GOR, contact 1LR, winding of the linear signal relay LSR and terminal MB.

With the excited windings of the 1LR linear relay and the LSR linear-signal relay, yellow and green lights are on at the traffic lights.

Burning yellow light above green is carried out along the following circuit: terminal C, winding relay GOR, lower contact 2 LR, upper contacts 1 LR and LSR connected in parallel in the circuit, filament lamp of the yellow fire, wire MC.

The burning of green fire is carried out along the following lines: clip C, relay / COP winding, LSR top contact, LPR polarized relay contact, green lamp nakl, MS wire and MS clip.

Control of the burning of a yellow fire lamp produces a ZHOR relay, and the control of a green fire lamp - a KOR relay.

When the polarity of the direct current is reversed to reverse polarity, the winding of the 2LR linear AC relay continues to be de-energized, and the winding of the linear 1LR relay is energized by the reverse polarity and the contact of its polarized core switches to the right position.

The reverse polarity current flows through a linear circuit: terminal PB, lower contact LSR, contact YAR, wire L2, through a linear chain and VOL; Rejection of the linear relay 1 LR, wire JJJ, contact YAR, winding DR, contact KOR, lower contact LSR and MB.

The AC source is disconnected from the linear circuit by the LSR contact.

When a 1LR linear relay is energized by a reverse current polarity, a yellow light on the traffic light turns on the following circuit: terminal C, ZHOR relay coil, bottom contact 2LR, top contact 1LR, lamp filament; yellow fire, common return wire and clamp MC.

If the linear circuit is opened by the contacts of the NR track relay, as a result of the linear relay circuit: 1LR direct current and 2LR alternating current are de-energized, a red light on the circuit: terminal C, relay core KOR, lower contact of the LSR relay, filament turns on at the traffic light red lamp, common return wire and clip MC.

When a green lamp burns out, a yellow light is lit at the damaged traffic light, and at the previous traffic light the green light goes out and the yellow light and green lights go out.

When a yellow lamp burns out, a red light is turned on at a damaged traffic light, and a yellow one at the previous one.

If the red lamp burns out, the lamp will be transferred to the previous traffic light.

Subject invention

A device for two-wire, four-digit auto-locking, containing two linear relays, one of which operates from a dc variable polarity and the other from alternating current, characterized in that it is designed to increase the reliability of the pa- rameter. The bots of the device applied the simultaneous power supply of the indicated linear relays with direct and alternating currents at the most enabling signal.

Bureau of Inventions, IPU