Mining intelligent explosion-proof switch

Abstract

The invention discloses a mining intelligent explosion-proof switch comprising a pressure-sensitive metal / high-molecular composite material housing (8), an explosion-proof cavity, and a door cover (7). The housing is formed by synthesis of a silicone rubber and a metallic Ni powder in a mass ratio of 1:2 to3. A lifting door mechanism rotating ring (6) and a door cover handle (3) are connected and are installed in the lifting door mechanism seat (2); one side of the lifting door mechanism seat (2) is sleeved with a door support shaft (4) and the whole unit, together with a lower door (5), is installed at the door cover (7). The upper portion and the lower portion of the door support shaft (4) are installed at the housing (8) by door shaft top blocks (1); and the combination surface the lifting door mechanism rotating ring (6) and the door support shaft (4) has the gear structure. The door cover (7) consists of a circular cover (71), a gear ring (72), a central shaft (73), and an adjusting pad (74). According to the invention, the switch with the compact structure is suitable for the narrow space of the underground coal mine; the switch can be operated securely and conveniently; and the explosion and fire accidents caused by the switch due to the electric spark in the inflammable and explosive working environment can be effectively avoided.

Description

technical field [0001] The invention belongs to the field of geological exploration, in particular to an intelligent anti-explosion switch for mines. Background technique [0002] There are many types of explosion-proof switch doors used in coal mines, such as square and round, and fixed and quick-opening structures. The traditional door opening structure uses a cam structure, which is completely realized by the self-gravity of the door during use. The process of opening and closing the door of the switch is time-consuming and laborious, and the precision of the gap between the door and the housing is required to be relatively high during use. If the switch is used for more than a certain number of years, this method of opening the door will easily cause the door and the housing to not fit properly, affecting the safety of the switch. performance. And in order to meet the requirements of the explosion-proof switch on the impact force of the explosion-proof surface, the door...

AI Technical Summary

Problems solved by technology

[0002] There are many types of explosion-proof switch doors used in coal mines, such as square and round, and fixed and quick-opening structures. The traditional door opening structure uses a cam structure, which is completely realized by the self-gravity of the door during use. The process of opening and closing the door of the switch is time-consuming and laborious, and the precision of the gap between the door and the housing is required to be relatively high during use. If the switch is used for more than a certain number of years, this method of opening the door will easily cause the door and the housing to not fit properly, affecting the safety of the switch. performance

And in order to meet the requirements of the explosion-proof switch on the impact force of the explosion-proof surface, the door needs to be manufactured in a large volume, resulting in heavy weight and unstable positioning

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