Safety access door
An inspection door and safety technology, which is applied in the direction of instruments, panel/switch station circuit devices, substation/power distribution device shells, etc., can solve problems such as easy misoperation, many switches, and increased risk of work, achieving high safety, The effect of design science
Inactive Publication Date: 2014-11-05
STATE GRID CORP OF CHINA +1
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Problems solved by technology
[0002] In places with dense circuits such as power plants or maintenance stations, the safety of maintenance work is the top priority. Many power maintenance equipment needs to be powered off for maintenance. After closing the main switch, check its control cabinet. However, in the equipment There are many venues with many switches. Staff who are not familiar with the venues, especially newcomers, are prone to misuse and fail to turn off the equipment switches that need to be repaired, which greatly increases the risk of follow-up work.
Method used
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[0011] The technical solutions of the present invention will be described in further detail below through specific implementation methods.
[0012] Such as figure 1 and figure 2 As shown, a safety inspection door includes a door panel 1 installed on the cabinet, a door frame 2, a battery, a time relay 7, and a self-resetting switch 4 arranged on the door frame 2 and corresponding to the door panel 1. A signal lamp 3 is provided on the door panel 1, and the battery and the signal lamp 3 are connected through the pressing contact of the self-resetting switch 4 to form a signal lamp circuit. When the door panel 1 is closed, the pressing contact of the self-resetting switch 4 is triggered, and the signal lamp When the circuit is energized, the signal light 3 is used to indicate that the battery is normal;
[0013] The electromagnetic coil of the time relay 7 and the storage battery are connected through the initial contact of the self-resetting switch 4 to form a switch circuit...
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The invention provides a safety access door which comprises a door plate, a door frame, a storage battery, a time relay and an automatic resetting switch. The door plate, the door frame, the storage battery and the time relay are installed on a cabinet body, and the automatic resetting switch is arranged on the door frame and arranged corresponding to the door plate. The door plate is provided with a signal lamp. The storage battery and the signal lamp are connected to form a signal lamp loop through an abutting contact of the automatic resetting switch. An electromagnetic coil of the time relay and the storage battery are connected to form a switch loop through an initial contact of the automatic resetting switch. The output end of the time relay serves as a main switch of an external circuit. The external circuit is connected with a caution lamp and an alarm through the initial contact of the automatic resetting switch. The safety access door has the advantages of being scientific in design, high in safety and intelligent in control.
Description
technical field [0001] The invention relates to a door, in particular to a safety inspection door. Background technique [0002] In places with dense circuits such as power plants or maintenance stations, the safety of maintenance work is the top priority. Many power maintenance equipment needs to be powered off for maintenance. After closing the main switch, check its control cabinet. However, in the equipment There are many venues with many switches. Staff who are not familiar with the venues, especially newcomers, are prone to misuse and fail to turn off the equipment switches that need to be repaired, which greatly increases the risk of follow-up work. [0003] In order to solve the above existing problems, people have been seeking an ideal technical solution. Contents of the invention [0004] The object of the present invention is to aim at the deficiencies of the prior art, thereby providing a safety overhaul door with scientific design, high safety and intelligent...
Claims
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IPC IPC(8): G08B21/02H02B1/26H02B1/24
Inventor 马晨雯
Owner STATE GRID CORP OF CHINA