Manufacturing method of safety alarm device for railway transportation communication

1. The present technology relates to the technical field of railway transportation, in particular to a safety alarm device for railway transportation communication.

Background technique:

2. Railway transportation is a mode of transportation that uses railway trains to transport passengers and goods. It plays an important role in the process of social material production. It is characterized by large transportation volume, high speed, low cost, and generally not affected by climatic conditions. It is suitable for long-distance transportation of bulk and heavy goods. In order to improve the safety of railway transportation, safety alarm devices are generally installed on the railway;

3. At present, the utility model patent with the patent number of cn212267510u discloses an auxiliary safety alarm device for railway transportation, which includes a base and a box body, a support rod is fixed on the upper end of the base, and the upper end of the base outside the support rod

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