CN201017784Y - Electromagnetic lock dedicated for computer monitoring mistake prevention device - Google Patents

Abstract

The utility model relates to a special-purpose electromagnetic lock used for a computer monitoring anti-mistake device. A coil is connected with a travel switch, a lock core is arranged on one side of the coil, and an indication lamp is connected with the travel switch; a ground plug jack and micro switches are arranged on the lock body, a ground rod is connected with the micro switch through the ground plug jack in the working state, an unlocking hole is arranged on one side of the lock core, a ground wire accessing hole is connected into the ground rod, which is used to be arranged in the ground wire. The utility model has the advantages that the utility model is assembled in an insulation casing, a power line, the travel switch, the indication lamp, and the coil are connected together, a micro switch with a pair of normally closed and normally open contacts is arranged at the motion point of the lock, the micro switch is accessed into the computer monitoring system loop, and the micro switch accurately delivers the motion signal of the lock to the computer monitoring system. The normally closed contact and the normally open contact can input the motion and the state of the lock into the computer monitoring system, and the computer monitoring system controls whether the lock core is sucked through the power on and the power off of the coil power. The utility model is matched with the computer monitoring anti-mistake device, thus preventing the electric misoperation and realizing the reliable locking function.

Description

The special-purpose electromagnetic lock of computer monitoring error-proof device

Technical field

The utility model relates to a kind of locking device that prevents the high voltage switchgear electric misoperation, is a kind of electromagnetic lock of special sub computers monitoring error-proof device.Belong to the electromagnetic lock technical field.

Technical background

At present, known anti-error electromagnetic lock is to adopt coil to link to each other with lock core, utilizes the power on/off of control coil to come the adhesive lock core, thereby realizes blocking function.But this can't satisfy the new demand of integrated automation converting station and the needs of computer supervisory control system logic blocking.

Summary of the invention

The purpose of this utility model is in order to overcome the deficiency that existing electromagnetic lock can not satisfy computer supervisory control system logic blocking needs, provide a kind of computer monitoring error-proof device special-purpose electromagnetic lock, this electromagnetic lock not only can be realized reliable anti-incorrect manipulation deadlock function, can also the sub computers supervisory control system use.

Technical solution of the present utility model: it is characterized in that coil and travel switch join, lock core is arranged on a side of coil, and the indication nail joins with travel switch; Earth jack, micro switch are contained on the lock body, and earth rod joins down in working order by earth jack and micro switch, and unlock hole is installed in a side of lock core, and earth connection inserts the hole and is contained in the earth rod, is used to the earth connection of packing into.

Advantage of the present utility model: in insulation crust, coil, lock core and lock body assemble, power line, travel switch, indicator light and coil are connected, operating point at lock is provided with a pair of normally closed double-contact micro switch of often opening, micro switch inserts the computer supervisory control system loop, by micro switch the actuating signal of lock accurately is transported to computer supervisory control system.Since normally-open normally-close two secondary contacts can be reliably will the reaction lock action and state input computer supervisory control system, and computer supervisory control system is by logic discrimination, the break-make of control coil power supply is finished whether adhesive lock core of coil.Thereby reliably realize the anti-incorrect manipulation deadlock under the computer supervisory control system.The beneficial effects of the utility model are to monitor error-proof device by sub computers, effectively prevent electric misoperation, realize reliable blocking function.

Description of drawings

Accompanying drawing 1 is Electromalgnetic locking mechanism full surface figure.Accompanying drawing 2 is earth rod figure.

Fig. 3 is power circuit principle figure of the present utility model.

Accompanying drawing 4 is micro switch schematic diagrams.

1 is insulation crust among the figure, the 2nd, and coil, the 3rd, travel switch, the 4th, lock core, the 5th, indicator light, the 6th, earth jack, the 7th, micro switch, 8 unlock holes, 9 earth rods, 10 earth connections insert hole, 11 disconnecting link mechanism auxiliary contacts, 12 travel switches, 13 electromagnetic lock coils.

Embodiment

Contrast accompanying drawing, its structure are that coil 2 joins with travel switch 3, and by the break-make of travel switch 3 control coil power supplys, lock core 4 is arranged on a side of coil 2, and during work, it is with lock core 4 adhesives, and indication nail 5 joins with travel switch 3, and indicator light is bright during work; Earth jack 6, micro switch 7 are contained on the lock body, and earth rod 9 joins down in working order by earth jack 6 and micro switch 7, and whether the break-make demonstration earth rod 9 by micro switch 7 inserts earth jack 6; Unlock hole 8 is installed in a side of lock core 4, and earth connection inserts hole 10 and is contained in the earth rod 9, is used to the earth connection of packing into.

Micro switch 7 is in the raw the time, and electromagnetic lock is not charged, and coil 2 can't adhesive lock core 4, operate thereby earth rod 9 shown in Figure 2 can't be inserted; Have only when the permission of host computer condition, knife switch secondary contact 11 closures then, connect the electromagnetic lock working power, press lower stroke switch 3, indicator light 5 is bright, coil 2 energisings, adhesive lock core 4 can insert ground connection earth jack 6 and operate, at this moment, micro switch 7 is the change state owing to the insertion of earth rod, thereby sends status signal to computer supervisory control system.Computer supervisory control system is controlled the power supply of electromagnetic lock by logistic discrimination.Electromagnetic lock also sends to computer supervisory control system with the actuating signal of self simultaneously in the control signal of accepting computer supervisory control system, thereby realizes reliable anti-incorrect manipulation deadlock function.

Claims (1)

1. the special-purpose electromagnetic lock of computer monitoring error-proof device is characterized in that coil and travel switch join, and lock core is arranged on a side of coil, and the indication nail joins with travel switch; Earth jack, micro switch are contained on the lock body, and earth rod joins down in working order by earth jack and micro switch, and unlock hole is installed in a side of lock core.

Images