RU149474U1 - DEVICE FOR ELECTRICAL CONNECTION OF A CABLE TO A RAIL RAIL - Google Patents

Abstract

A device for electrically connecting a cable to a rail, including a cable and a rail sole made of a steel plate, with a base, edge bends formed in one direction, and a clamp in the cavity of which the conductive core of the cable is clamped, the grip base being bent in the direction of formation of the edge bends, and one of the bends is made S-shaped, characterized in that the section of the S-shaped bend adjacent to the base is provided with a protective bracket covering said shaded area.

Description

The utility model relates to the field of electrification of railways, in particular, to the design of a device for electrically connecting a cable to a rail.

The prior art device for electrical connection of the grounding cable with the rail, see patent RU 100033 U1, IPC B60S 9/00, publ. December 10, 2010. The device includes a clamping terminal, a threaded connecting element, and also a grip of the rail sole, which is made of a metal plate and provided with edge bends formed in one direction.

The disadvantages of the device according to the patent RU 100033 U1 are the increased installation / disassembly time and low reliability of the device due to the possibility of breaking electrical contact due to unscrewing of the threaded connecting element under the action of vibrations acting on the device during operation.

For the closest analogue of a utility model, a device for electrical connection of a cable to a rail is taken, see patent RU 138735 U1, IPC H01R 4/18, publ. 03/20/2014. The device includes a cable and a rail sole grip made of a metal plate with a base and edge bends formed in one direction, as well as with a clamp in the cavity of which a conductive core of the cable is clamped, providing electrical contact between the core and capture. The analog device differs from the known ones in that the grip is made of spring steel, the grip base is curved in the direction of formation of the edge bends, and one of the bends is made in an S-shape.

The disadvantage of the analogue is the possibility of residual deformation of the limb of the S-shaped shape when irregularly applied by the hand percussion instrument used to mount the device on the rail. The residual deflection of the bend adversely affects the service life of the device, in particular, it may make it difficult to re-install part of the operating devices on the rails after their dismantling.

The objective of the claimed utility model is to increase the service life of the device.

The technical result, which is achieved by the claimed technical solution, is to protect the limb of the S-shaped form from excessive mechanical stress when mounting the device on the rail, leading to the appearance of permanent deformation.

The specified technical result can be obtained in the design of the device for the electrical connection of the cable with the railway rail, including the cable and the grip of the sole of the rail, made of a steel plate, with a base, edge bends formed in one direction, and a clamp in the cavity of which a conductive is clamped cable core, while the base of the grip is curved in the direction of formation of the edge bends, and one of the bends is made S-shaped.

The technical result is achieved by the fact that the bending section of the S-shaped, adjacent to the base, is equipped with a protective bracket covering the said section.

Due to the presence of a protective bracket, the kinetic energy of the impact, which is applied by the tool when mounting the device on the rail along the S-shaped edge bend, is distributed over the protective bracket and transmitted to the S-shaped bend portion that it covers. This ensures the protection of the limb of the S-shaped form from the appearance of residual deformations and, as a result, increases the service life of the device.

The utility model is illustrated by the following drawings.

In FIG. 1 shows a photo of a capture of the rail sole without cable, side view;

In FIG. 2 shows a complete assembly mounted on a rail.

The positions in the drawings indicate:

1 - the base of the capture of the sole of the rail;

2 - marginal limb gripping the sole of the rail;

3 - S-shaped marginal limb gripping the sole of the rail;

4 - clamp;

5 - the cavity of the clamp;

6 - railway rail;

7 - the sole of the rail;

8 - insulating cable sheath;

9 - conductive cable core;

10 - a protective bracket.

To implement the utility model, modernization of the device known from patent RU 138735 U1 is carried out, which includes (see Fig. 2) a cable and a grip of the sole 7 of the rail 6, made of a steel plate, with a base 1, edge bends 2, 3, formed in one direction, and with a clamp 4, in the cavity 5 of which a conductive core 9 of the cable is clamped. In this case, the bend 3 is made S-shaped, and the base 1 of the capture in the initial state is curved in the direction of formation of the edge bends (see Fig. 1).

The known device is additionally equipped with a protective bracket 10. The protective bracket 10 is made of a steel strip and installed on the bending section 3 of the S-shaped adjacent to the base 1. The bracket 10 covers the bending section 3 of the S-shaped, exposed to the impact tool when mounting the device on rail 6.

The device is mounted on a rail in a known manner (see Fig. 2).

The grip is started under the rail 6, the edge of the sole 7 of the rail 6 is hooked by the edge bend 3 and, striking the protective bracket 10, covering part of the edge bend 3, in the direction of the bottom of the rail 7, snap it on the edge of the sole 7, after which the device is fixed by impact on the edge bend 2 towards the bottom of the rail 7.

To dismantle the device, they hit the protective bracket 10, covering part of the edge bend 3, in the direction of the bottom of the rail 7, after which a top-down impact on the edge of the bottom of the rail 7 along the edge of the bend 2 separates the cable grip from the bottom of the rail.

The presence of a protective bracket 10 provides effective protection of the limb 3 of the S-shaped form from the appearance of residual deformations due to the use of a percussion instrument and increases the service life of the device.

The practical implementation of the device confirmed the receipt of the claimed technical result.

Claims (1)

A device for electrically connecting a cable to a railway rail, including a cable and a rail sole grip made of a steel plate, with a base, edge bends formed in one direction, and a clamp in the cavity of which the conductive core of the cable is clamped, while the grip base is curved in the direction of formation of the edge bends, and one of the bends is made S-shaped, characterized in that the section of the S-shaped bend adjacent to the base is provided with a protective bracket covering said shaded area.

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