RU183223U1 - Foreign objects fall warning device - Google Patents

Abstract

The device relates to means of ensuring safety in transport and can be used to warn of the fall of foreign objects onto the railway track from artificial structures. The device is an electric circuit of elements and includes a base with platforms, stops, brackets, sensors of foreign objects and conductors of electric current. Each sensor is a replaceable destructible element made of a dielectric material. The device can be installed in control zones along the perimeter of the external borders of high-risk facilities in places where foreign objects are likely to fall (bridges, viaducts, tunnel portals, traffic intersections, etc.) and can be used to warn of landslides, avalanches, mudflows, rockfalls, etc. . The device is characterized by increased reliability and low probability of false positives. 3 ill.

Description

This device relates to means of ensuring safety in transport and can be used to control the movement of railway transport, in particular, to warn of the fall of foreign objects onto the track from artificial structures (bridges, viaducts, tunnel portals, traffic intersections, etc.).

There is a warning device about the fall of foreign objects on the path (RF patent No. 2279369, IPC B61L 23/26, B60K 28/14, G08B 21/00, published on July 10, 2006), which is an electric circuit of elements and includes a base with sites and installed on them stops with brackets, scarves, reinforcing the fastening of the stops, pads for mounting brackets, sensors and conductors of electric current.

The disadvantage of this device is the low reliability caused by the presence of external bolted connections in the electrical circuit and their poor corrosion resistance, because the device is not protected from the influence of weather changes in the environment (snow, rain, spray, etc.), which leads to a false response and a decrease in the service life of the device. In addition, false alarms can occur due to the dynamic effects of minor objects, such as, for example, hail.

The objective of the claimed device is to reduce the likelihood of false positives and increase the reliability of the device.

The problem is solved in that in the warning device about the fall of foreign objects onto the path, containing foreign objects fixed on the base of the plate and mounted on them by means of brackets and mounts, as well as stops, kerchiefs, plates and conductors of electric current, on one side of each of the stops mounted on the plate in the longitudinal plane of the base, a kerchief is mounted perpendicularly to it and fixed to the plate, and on the other hand, an overlay is fixed to the stop and made a rectangular groove for placing a rectangular bracket in it, secured by an overlay, the sensors are made in the form of two pipes of different diameters, concentrically arranged in one another and fastened with two washers superimposed from the ends of the pipes, the pipes and washers made of dielectric material, and the sensors are mounted made in the form of clamps mounted on brackets, electric current conductors are placed inside the pipe of a smaller diameter and connected to the wires output through the cable entries, located in the holes of washers, wherein the connection between the sensors is performed using these wires and connecting the panels placed in a box mounted on the base.

This embodiment of the device, in which the sensors are made in the form of two pipes of different diameters, concentrically arranged one in the other and fastened with two washers superimposed from the ends of the pipes, the pipes and washers made of dielectric material, the sensors are mounted in the form of clamps mounted on brackets and electric current conductors are placed inside a pipe of a smaller diameter and are connected to wires brought out through cable entries located in the holes of the washers, and the sensors Using these wires and connecting panels placed in boxes mounted on the base, due to the use of sensors made of dielectric material, it allows to increase the corrosion resistance of the joints and, thereby, reduce the likelihood of false triggering of the device due to a violation of the electrical circuit, and due to the outer case of the sensor in the form of a round pipe, which has normalized fracture characteristics under dynamic effects, to increase the security of the device from accidental influences, reduce the number of false positives due to impacts of minor objects. And all this increases the reliability of the device.

In fig. 1 shows a diagram of a device warning about the fall on the path of foreign objects, in Fig. 2 is a diagram of the sensor, and in fig. 3 - bracket assembly with a pad, an emphasis, a scarf, an overlay and a clamp (side view in Fig. 1).

The device is mounted on the base 1 of the plate 2 and mounted on them stops 3 with brackets 4, clamps 5 and sensors 6. The stops 3 are mounted on each plate 2 in the longitudinal plane of the base 1. On one side of the stop 3 and perpendicular to it on the plate 2 is fixed kerchief 7, and on the other side of the stop 3, an overlay 8 is fixed on it and a rectangular groove is made to accommodate the end of the bracket 4 of rectangular section in it. The thickness of the bracket 4 is chosen greater than the depth of the rectangular groove of the stop 3 for reliable fixing of the bracket with nuts 9. Each of the sensors 6 is a replaceable destructible element and consists of two pipes 10 and 11 of dielectric material. The pipes have different diameters, are concentrically arranged in one another and are fastened with two washers 12 of dielectric material, which are superimposed on the pipes from the end sides. Sensors 6 are mounted on brackets 4 with clamps 5 and fastenings 13 with nuts. The cylindrical shape of the outer housing 10 of the sensor ensures the independence of the dynamic force from the direction of impact in the vertical plane. This reduces the risk of false positives from impacts of objects of small mass.

The electric circuit of the elements of the device consists of conductors 14 of electric current located inside the cylinders 11 of smaller diameter. The conductors 14 are connected to the wires 15, derived from the sensors through cable entries 16 located in the holes of the washers 12. The electrical connection of the sensors 6 to each other is made using wires 15 and connecting panels 17. The connecting panels 17 are placed in boxes 18 installed on the base 1. The electrical circuit of the device with a wire 19 is connected to the control equipment of the station duty officer (not shown).

To protect against wire breakage and destruction of boxes 18 with connecting panels 17, the device is additionally equipped with steel protective covers 20 covering them (shown by a dotted line in Fig. 1).

The device operates as follows. In the normal mode of operation of the device, the sensors 6 and the conductors 14 of the electric current located therein maintain integrity. In an emergency situation, when a massive foreign object falls onto a device located in a railway control zone, a breakage of sensor 6 (or several sensors) occurs. In this case, the electric current conductor 14 located in the sensor 6 is also destroyed. As a result, the electric circuit connected to the control equipment of the station duty officer is disturbed. An open circuit is perceived by the control equipment as an emergency signal. The station attendant, upon receipt of an alarm, analyzes the situation and makes a decision on confirming the fall of a foreign object from an artificial structure or on a false alarm.

If the control equipment is equipped with a video surveillance system, then when an alarm is received, the image from the corresponding video camera is automatically displayed on the monitor screen, and then the station attendant has the opportunity to assess the situation using video images.

An open circuit occurs only after the destruction of the sensor 6 due to the fact that the impact force exceeded the normalized dynamic effect on the outer tube 10 of the sensor 6. The destroyed sensor 6 is replaced with a new one. The deformed or broken bracket 4 is removed by loosening the nuts 9 on the stop 3. Insert a new bracket 4 into the groove of the stop 3 and tighten the nuts 9 and fastenings 13. The device becomes usable again.

The device is installed in control zones along the perimeter of the external borders of artificial structures and high-risk facilities in places where foreign objects are likely to fall on the railway track (bridges, overpasses, tunnel portals, traffic interchanges, etc.), including to warn of a fall from automobile bridges funds. The device can also be used to warn of landslides, avalanches, mudflows, rockfalls, etc., and controlled objects can consist of any materials, both metals and dielectrics. The angle of inclination of the base 1, the dimensions of the sensors 6 and other elements of the device are selected based on the actual conditions of their use on specific artificial structures, in particular, as the base 1 for fastening the plates 2, fencing structures of artificial structures above the railway track can be used.

These features of the device increase the reliability of its operation, reduce the likelihood of false positives and severe accident consequences for rolling stock and railway infrastructure.

Claims (3)

1. A device for warning of foreign objects falling onto the path, characterized in that it contains foreign object sensors mounted on the base of the plate and mounted on them by means of brackets and mounts, as well as stops, kerchiefs, plates and conductors of electric current, on one side of each of stops installed on the plate in the longitudinal plane of the base, a kerchief mounted on the plate perpendicular to it, and on the other hand, a groove is made on the stop for placing the bracket in it, fixed by an overlay. 2. The device according to claim 1, characterized in that the sensors are made in the form of two pipes of different diameters, concentrically arranged in one another and fastened with two washers superimposed from the ends of the pipes, the pipes and washers made of dielectric material, and the sensors are mounted in the form of clamps mounted on brackets. 3. The device according to claim 2, characterized in that the electric conductors are placed inside the pipe of a smaller diameter and connected to the wires output through the cable entries located in the holes of the washers, and the connection of the sensors between the tank is made using these wires and connecting panels placed in boxes mounted on the base.

Images