RU209054U1 - KEY FOR MAINTENANCE OF TRAFFIC LIGHTS ON RAILWAYS - Google Patents

Abstract

The utility model relates to a hand tool for carrying out repair and installation work, in particular, to a special tool for installing and repairing signaling, centralization and blocking (SCB) devices, in particular traffic lights. The wrench for servicing traffic lights on railways consists of two working elements obtained by bending at a right angle one blank of a monolithic rod, while on one working element a socket head with an internal pentahedron and an internal hole with a depth of at least 10 mm is made, having a diameter of an inscribed circle in a pentahedron equal to 10.5 mm, and on the second working element there is a socket head with an internal pentahedron and an internal hole with a depth of at least 22 mm, having a diameter of the inscribed circle in the pentahedron equal to 15 mm. The technical result consists in reducing the time of service of traffic lights and increasing the security of traffic lights from unauthorized access. 2 w.p. f-ly, 3 ill.

Description

The utility model relates to a hand tool for carrying out repair and installation work, in particular to a special tool for the installation and repair of signaling, centralization and blocking (SCB) devices, in particular traffic lights.

Known socket wrench with hexagon double-sided curved (GOST 29308-92(ISO1703-831, pos.20).

The disadvantage of this key is the absence of the necessary socket heads with internal geometry, in particular, a pentahedron, which are used when servicing signaling devices.

The objective of the proposed technical solution is to improve the quality of service of signaling traffic lights.

In the process of solving this problem, a technical result is achieved, which consists in reducing the time of servicing traffic lights and increasing the security of traffic lights from unauthorized access.

The technical result is achieved with a wrench for servicing traffic lights on railways, consisting of two working elements obtained by bending at a right angle of one blank of a monolithic rod, on one working element a socket wrench with an internal pentahedron and an internal hole with a depth of at least 10 mm is made, having an inscribed circle diameter in the pentahedron , equal to 10.5 mm, on the second working element there is a socket wrench with an internal pentahedron, and an internal hole with a depth of at least 22 mm, having an inscribed circle diameter in the pentahedron equal to 15 mm.

The socket wrench is hardened by high frequency currents (HF) to a hardness of HRC 42-45.

The key is made of high carbon steel with a carbon content of 0.4-0.7 wt.%.

The key has an anti-corrosion coating.

The socket on the first working element with an internal pentagon and an internal hole with a depth of at least 10 mm, has an inscribed circle diameter in the pentagon equal to 10.5 mm, a key head circumference diameter of 14.8 mm, a head depth of 14 mm, and an internal hole diameter equal to 10.5 mm. The diameter of the working element is 10 mm. The head is designed for unscrewing and screwing nuts that have five faces on bolts with a free end above the nut 10 mm, which is a protection against unauthorized unscrewing of the nut with publicly available socket wrenches. All other parameters of the end head are made for nuts that have parameters corresponding to this end head.

The end head on the second working element with an internal pentahedron and an internal hole with a depth of at least 22 mm has an inscribed circle diameter in the pentahedron equal to 15 mm, a key head circle diameter on the second working element is 20 mm, a head depth is 14 mm, and the diameter of the internal hole is 15 mm. The diameter of the working element is 10 mm. The head is designed for unscrewing and tightening nuts that have five faces on bolts with a free end above the nut 22 mm, which is a protection against unauthorized unscrewing of the nut with publicly available socket wrenches. All other parameters of the end head are made for nuts that have parameters corresponding to this end head.

The device of the key is illustrated by drawings.

Figure 1 shows a General view of the key, figure 2 shows a section of the end head on the first working element with an internal pentahedron, figure 3 shows a section of the end head of the key on the second working element with an internal pentahedron.

The key consists of two working elements 1 and 2, obtained by bending a monolithic bar at a right angle. On the first working element 1, a socket key 1.1 is made with an internal pentahedron 1.2 and an internal hole 1.3, on the second working element 2 a socket key 2.1 is made with an internal pentagon 2.2, and an internal hole 2.3.

The presence in one product of keys with a similar functional purpose allows you to quickly start planting traffic lights on railways, saving time on finding and delivering the necessary keys. The geometrical parameters of the socket heads are significantly different from traditional keys, allowing to reduce unauthorized access to traffic lights on the railway.

Claims (3)

1. Wrench for maintenance of traffic lights on railways, characterized by the fact that it consists of two working elements obtained by bending at a right angle one blank of a monolithic rod, while on one working element a socket head with an internal pentahedron and an internal hole with a depth of at least 10 mm is made , having a diameter of the inscribed circle in the pentahedron equal to 10.5 mm, and on the second working element there is an end head with an internal pentahedron and an internal hole with a depth of at least 22 mm, having a diameter of the inscribed circle in the pentahedron equal to 15 mm. 2. The key according to claim 1, characterized in that the end head is hardened by high frequency current to a hardness of HRC 42-45. 3. The key according to claim 1, characterized in that it is made of high carbon steel with a carbon content of 0.4-0.7 wt.%.

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