Mine Safety Lock Mechanism and Flameproof Switchgear
A technology of explosion-proof switch and safety lock, which is applied in the direction of air switch components, etc., can solve the problems of reducing the service life of the isolating switch and damage of the isolating switch, and achieve the effect of avoiding damage to electrical components and improving the service life
Active Publication Date: 2017-01-18
SANY HEAVY EQUIP CO LTD
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Problems solved by technology
The interlock mechanism in the existing explosion-proof switchgear can meet the interlock function of opening the door when the power is turned off and closing the door and turning on the power. , and did not cut off the control power of the isolating switch. At this time, the isolating switch is still working on load under the action of the control power. Suddenly powering off the power power of the flameproof switch cabinet will easily make the power in the isolating switch Electrical components are damaged, reducing the service life of the disconnector
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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0021] see figure 1 and figure 2 , The embodiment of the present invention provides a mine safety lock mechanism, which is applied to the flameproof switchgear to provide guarantee for the safe operation of the flameproof switchgear. The flameproof switchgear includes a box body 1 and a safety door 2 rotatably arranged on the box body 1 .
[0022] The mine safety lock mechanism includes a disconnect switch control electric button 3 , a disconnect switch turntabl...
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The invention provides a mine safety lock mechanism and a flameproof switch cabinet. Mine-used safety lock mechanism is used in flameproof switchgear, including isolating switch control electric button, which is set on the box body, and is used for isolating switch to control the on-off of electricity; There is a limit block matched with the isolating switch control electric button; the isolating switch handle is set on the outside of the box and connected with the isolating switch turntable, which is used to drive the isolating switch turntable to rotate; when the isolating switch control electric button is pressed and rotates When the isolating switch is turned, the isolating switch control electric button is separated from the limit block to disconnect the power of the flameproof switch cabinet. The mine safety lock mechanism makes it possible to turn the turntable of the isolating switch to cut off the power supply of the flameproof switch cabinet only after the control power button of the isolating switch is pressed to cut off the control power of the isolating switch. damaged.
Description
technical field [0001] The invention relates to the technical field of a mine safety lock mechanism, in particular to a mine safety lock mechanism and a flameproof switch cabinet having the mine safety lock mechanism. Background technique [0002] The working environment of the power equipment in the mine is harsh. In order to prevent the gas explosion caused by the sparks generated when the equipment is working, various standards of the explosion-proof switchgear require that when the explosion-proof switchgear is equipped with an isolation switch, the isolation switch and the explosion-proof switch The interlocking mechanism between the doors of the cabinet should ensure that the door can only be opened when the contacts of the isolating switch are completely cut off. This is an important means for the explosion-proof performance of the explosion-proof switchgear and the personal safety of the on-site production safety level operators. The interlock mechanism in the exist...
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IPC IPC(8): H01H31/06
CPCH01H31/06
Inventor 王加伟王文广翟海波
Owner SANY HEAVY EQUIP CO LTD