CN2232876Y - Automatic safety alarm for railway cross - Google Patents

Abstract

The utility model relates to an automatic safety alarm for railway crossings, which can automatically send out alarm signal and generate fence operation signal, comprising an alarm lamp, an electric bell, a fence actuating relay, an electromagnetic switch and a normal closed switch. When trains pass through the crossing, wheel can drive a flange trigger switch to generate corresponding signals. The utility model has the advantages of simple structure and high reliability.

Description

Level crossing automatic safe warning device

The utility model relates to a kind of level crossing automatic safe warning device, alerting signal takes place especially automatically and produce the level crossing automatic safe warning device of railing actuating signal.

Say that generally two kinds of Attended mode and unmanneds are divided in the level crossing, wherein the unmanned road junction accounts for the overwhelming majority, in China, about 20,000 of road junction is just arranged in the 66430km railway.Therefore, improve the degree of automation of level crossing, the generation of stopping casualty accident, the cruising that guarantees train is this area technical task anxious to be solved, and present road junction does not have the automatic safe warning device, with artificial control signal device, putting down, or lift railing, also is manual or electric operating, still depend on the prior notice of wire communication and semaphore, rule of thumb, stop pedestrian and vehicle in advance, for train is let pass.Then restraint approximately or judgement with pedestrian's oneself entirely at the unmanned road junction.

The purpose of this utility model is to provide a kind of level crossing automatic safe warning device, especially when train passes through, can alerting signal take place automatically and produce the railing actuating signal, and finish at train passage, can return extensive on time.

The utility model comprises a Warning light, one end of this Warning light connects an end of two-phase power supply, the other end connects K switch L, a caution sound device is in parallel with Warning light, and the primary winding of railing actuating relay is in parallel with Warning light, and the magnet coil of K switch L is in parallel with Warning light, the other end and the K switch of K switch L are in series, the other end of K switch connects the other end of two-phase power supply, and K switch L is a normal open switch, and K switch is a normally closed switch.

The utlity model has simple in structure, the characteristics of good reliability, it has extensive applicability, not only can be used for the road junction of Attended mode, also can be used for unattended road junction.

Description of drawings is as follows:

The schematic circuit diagram of a kind of most preferred embodiment of the utility model of accompanying drawing.

Now in conjunction with the accompanying drawings, most preferred embodiment of the present utility model is described, level crossing automatic safe warning device comprises Warning light, sound device, railing actuating relay and K switch L, K.Wherein the magnet coil L of Warning light D, sound device X railing actuating relay J and switch LK is in parallel, then with K switch L, the K switch series connection is connected on the two-phase power supply, and K switch L is an electromagnetic switch, when contacting, the magnet coil of K switch L is kept in touch, and K switch is a normally closed switch.

K switch L, K switch are installed in by the rail I-beam section, by the wheel guide rib triggering of locomotive.When the approaching train road junction, at first trigger switch KL makes power on circuitry, Warning light is bright, and sound device sends the sound as electric bell, the railing actuating relay moves and because the magnet coil of K switch L is charged, holds the contact with magnetic force and remain closed, when train sails out of, being installed in the K switch of sailing out of oral-lateral is triggered by wheel flanges, the circuit relay, Warning light goes out, and electric bell stops sounding, railing actuating relay dead electricity, railing is packed up.

Wherein Warning light can be a single lamp, and also an actuating relay drives one group of signal lamp, promptly connects the primary winding of this relay on this position.

K switch L, K are separately positioned on the both sides, road junction, and other parts can be concentrated and lay (not shown) in the casing.

The utlity model has the advantage that circuit is simple, components and parts are few, safe and reliable, be particularly suitable for the management at unattended railway road junction.

Claims (2)

1, a kind of level crossing automatic safe warning device, it is characterized in that: comprise that an end of a Warning light, this Warning light connects an end of two-phase power supply, the other end connects K switch L, a caution sound device is in parallel with Warning light, the primary winding of railing actuating relay is in parallel with Warning light, the magnet coil of K switch L is in parallel with Warning light, the other end and the K switch of K switch L are in series, the other end of K switch connects an end of two-phase power supply, K switch L is a normal open switch, be arranged on a side of sending a car in the level crossing, K switch is a normally closed switch, is arranged on opposite side.

2, according to the level crossing automatic safe warning device of claim 1, it is characterized in that, K switch L is arranged on the other electromagnetic switch of rail I-beam section by what the locomotive wheel guide rib triggered, K switch is to be arranged on the other normally closed switch of rail I-beam section by what the locomotive wheel guide rib triggered.

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