Linkage type electrical locking button device for coal mine

Abstract

The invention relates to a linkage type electrical locking button device for a coal mine. The linkage type electrical locking button device is composed of three (or more) single-face buttons and a semi-cylinder operation rod, wherein the single-face buttons are provided with independent explosive-proof cavities. The linkage type electrical locking button device is characterized in that the semi-cylinder operation rod is fixed to the buttons through supports, and the three (or) more mutually independent single-phase buttons are connected through the semi-cylinder operation rod to achieve synchronous operation. The linkage type electrical locking button device for the coal mine removes the potential safety hazard caused by the fact that when an applied electrical device achieves electrical locking in the same environment, at the same place and in different time, a relay is in parallel connection in the device, the device is modified without permission, the explosive-proof performance of the electrical device is damaged, in case the device has electrical faults, dangerous voltage is generated, a locking circuit broken down, the dangerous voltage enters other devices, and personal safety is endangered.

Description

technical field [0001] The invention relates to a linkage electric locking button device for coal mines. Background technique [0002] With the development of science and technology, various coal mine electrical equipment with high technological content have been used underground, which has brought great economic and safety benefits. Electrical equipment with different functions are used in the same environment and at the same place at different times. In order to ensure the safety of people and equipment, reliable locking between electrical equipment must be achieved. But at present, there is no universal electrical locking device. For example, mixed lifting is generally used in inclined roadways of coal mines, overhead passenger devices are used when transporting people, and winches are used when transporting materials (equipped with safety devices such as sports car protection devices and anti-sports car devices). Article 371 of the "Coal Mine Safety Regulations" stip...

AI Technical Summary

Problems solved by technology

There are following disadvantages like this: 1, when a short-circuit fault occurs in a piece of equipment, the control line that the electric arc that produces may burn out the locking usefulness, and the high voltage that produces may damage the components and parts of other equipment: 2, connect in parallel in equipment Relays belong to unauthorized modification of equipment, which destroys the explosion-proof performance of electrical equipment. This is strictly prohibited by national laws and regulations: 3. When repairing a certain electrical equipment, it is necessary to stop all these equipment and cut off the main power supply to completely avoid In case of electrical failure of the equipment, dangerous voltage is generated, the circuit breaks down, and it is connected to other equipment in series, endangering personal safety

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