Explosion-proof electric switch

Abstract

The invention discloses an explosion-proof electric switch, which comprises an observation window, a baffle plate I, a box body I, a pipe I, a pipe II, a pipe III and a chassis. According to the invention, the switch opening and closing modes of a knob mode, a rocker mode and a pedal mode are adopted, so that the connection mode of a circuit and the working mode of a switch are enriched, and a worker can observe and operate the switch at the same time through different height settings so as to rapidly perform braking in case of emergency; and the observation window with the adjustable inclination angle and the baffle with the large radian are correspondingly arranged, so that the incident angle between an impact object and a shielding object can be enlarged to the maximum degree after severe explosion and splashing occur on a construction site so as to achieve the purpose of bouncing off the impact object and protect personnel safety and equipment safety.

Description

technical field [0001] The invention relates to the technical field of coal mine related equipment, in particular to an explosion-proof electric switch. Background technique [0002] With the rapid development of the national economy and the continuous improvement of people's living standards, people's demand for energy is increasing day by day. my country itself is a country rich in coal resources. Not only the quality of coal resources is better, but also the distribution is wide. Therefore, thermal power generation The method has become the main force in the development process of our country at this stage. On the one hand, it is because of its high cost performance, and on the other hand, it is because the level of coal mining has been greatly developed. [0003] Safety issues are a top priority in the coal mining industry. Among them, the operation scenarios of coal mining are mostly in a closed or underground environment. At the same time, it has extremely high require...

AI Technical Summary

Problems solved by technology

In addition, due to the long-term sealing of the working scene, a large amount of dust and even water vapor are unevenly dispersed in the working scene, especially in the process of coal mining operations, it is generally necessary to connect a large external current, and the breakdown will occur instantly when the corresponding switch is connected. The voltage will generate electric sparks. If it comes into contact with a large amount of dust or water vapor, it will cause a short circuit or even an accident of the switch explosion.

[0004] At present, the corresponding switch equipment still has the following problems: (1) Most equipment switches only use a single mode, such as a single knob type. On the one hand, it is not conducive to the staff to observe and operate in different scenarios. On the other hand, it may not be able to react quickly when there is an emergency; (2) There are basically no corresponding observation windows and protective baffles in the current equipment, and it is simply relying on the distance between the construction site and the operation site. It is extremely unreliable in terms of safety; (3) Most of the existing switch equipment is installed in a fixed form, which is extremely inconvenient to move

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