Cable voltage diagnostic apparatus for railway signal section blocking device

Abstract

The invention discloses a cable voltage diagnostic apparatus for a railway signal section blocking device, and the cable voltage diagnostic apparatus for the railway signal section blocking device comprises a mounting cavity, an upper cover hinged to the upper end of the mounting cavity, and a placing part, the placing part comprises convex blocks, grooves and a placing plate, the two grooves are separately formed in the inner side wall of the mounting cavity, the placing plate is slidably connected into the mounting cavity, the two convex blocks are separately and fixedly connected to the two sides of the placing plate, the ends, away from the placing plate, of the convex blocks are slidably connected into the grooves, and the placing plate is fixedly connected to the two sides of the placing plate. When the rotating shaft drives the fan blades to rotate reversely, gas in the mounting cavity can be exhausted through the exhaust outlet, and when the detector is loosened, the spring pushes the placement plate and the detector to move upwards again, so that the detector is pressed in a reciprocating manner, and heat dissipation of the interior of the mounting cavity is achieved.

Description

technical field [0001] The invention relates to the technical field of railway cable detection, in particular to a cable voltage diagnostic instrument used in a railway signal interval blocking device. Background technique [0002] The automatic blocking used in my country's railways mainly includes single-track two-way automatic blocking and double-track one-way automatic blocking. The so-called blocking is to ensure that only one train can run at the same time in an interval or blocked area, and to ensure that an interval or blocked area can run at the same time. A device that can only run one train in it is called a blocking device. Blocking is a way to prevent trains from colliding or chasing on the railway, and it is a more important method to ensure safety on the railway. [0003] With the increase in the use of cables for blocking devices in railway signal sections, most of the existing cable diagnostics are installed in the box when diagnosing the voltage of the cabl...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art. Most of the existing cable diagnostic devices are installed in the box. Since there is no heat dissipation structure inside the diagnostic device and the box, the diagnostic instrument will be damaged in the summer when it is exposed to the sun. Heat is generated and cannot be discharged, which is not conducive to the accuracy of the diagnostic voltage, and at the same time reduces the service life of the diagnostic instrument. A cable voltage diagnostic instrument for railway signal section blocking devices is proposed

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