CN2256159Y - Computer key and coded lock - Google Patents

Abstract

The utility model relates to a computer key and a coded lock, wherein, the computer key is composed of a single chip computer, a hall matrix probe head, an infrared receiving tube, a dot-matrix liquid crystal display, a system logic control circuit, an alarm cue circuit, a mechanical lock unlocking mechanism and an electronic lock unlocking circuit. A state bar and a reset spring are arranged in a second lock hole which is on the left side of the mechanical lock, and a code sheet which is provided with a built-in magnetic post is arranged at the bottom part of the mechanical lock. An on-off indicating circuit board which is provided with an infrared transmitting tube is arranged on the electronic lock, and a code sheet is arranged at the bottom part of the electronic lock. The utility model has the advantages of fast test for the state of the equipment, visible display, low power consumption, little error, small quantity of motion, small size, long service life and high composite indicator performance.

Description

Computer key and coding lock

The utility model belongs to a kind of key and lock, is applicable to the computer key and the coding lock of disconnecting link, switch in particularly a kind of electric power system.

At present, adopt computer key and mechanical coding lock and electronic code to lock in the electric power system in the anti-misoperation locking device and control disconnecting link and electronic switch in the electric power system, wherein the inspection ink recorder structure corresponding with mechanical lock adopts mechanical contact in the computer key, it operates strict, there are error and life-span short, the inspection ink recorder structure corresponding with the electronic code lock adopts first fulgurite, and its power consumption is big, dust is many, also makes its error big; In addition, the actuator of corresponding mechanical lock is a mechanical structure in the computer key, and the mode of unblanking is that the handle pressure is touched, the problem of its existence be the life-span short, momentum is big, easily makes inspection sign indicating number inaccurate, and casing itself to bear pressure big, easily cause damaging, and the actuator of corresponding electronic code lock is a relay, when action, the generation arc earlier, spark, and equipment is interfered, and easily burn and adhesion the contact, therefore, its life-span is short; In addition, existing mechanical coding lock is single-spar construction, after lock is opened, do not carry out just can carrying out next step operation to the operation of disconnecting link folding, thereby cause equipment to walk idle running, and electronic code lock does not have the equipment state detecting element yet, and promptly mechanical lock and electronic code lock all can't the checkout equipment state, also just can't prevent walking idle running, and, also do not possess five anti-functions; In addition, display is that numeral shows in the existing computer key, shows not intuitively, is unfavorable for human-computer dialogue.

The purpose of this utility model is to overcome the deficiencies in the prior art part, but provides a kind of checkout equipment state and detection speed is fast, low in energy consumption, momentum is little, but computer key that error is little, the life-span is long, function strong and Chinese character shows and man-machine interface is good and coding lock.

The utility model is achieved in that it is made of computer key and coding lock, wherein the coding lock is made up of mechanical coding lock and electronic code lock, described computer key is by single-chip microcomputer and interface and keyboard, link to each other with single-chip microcomputer and be used to detect by string and translation interface and analog line driver and lock number and the Hall probe matrix and the infrared receiving tube of disconnecting link or switch state of living in, the RAM that is used for storage information that links to each other with single-chip microcomputer, ROM and being used to shows the dot matrix lcd of lock number and disconnecting link or switch state of living in and MML man-machine language, the analyzing logic control circuit that constitutes by programmable logic device that links to each other with single-chip microcomputer, be used for controlling mechanical coding lock, the unlocking operation of electronic code lock, the alarm circuit that is made of analog line driver and buzzer that links to each other with the analyzing logic control circuit is by analog line driver, small and special electric machine, the mechanical lock release mechanism that the position detecting circuit that the contact that links to each other with small and special electric machine (key axle) and being used for resets the key axle constitutes and by isolated drive circuit, high-power thyristor, electrode and be used for the electronic code lock release circuit that the current detection circuit of sense switch state constitutes and constitute; Said mechanical lock comprises lock body, lock shaft, slide block and back-moving spring, three lockholes are arranged on lock body, be used for installing combined floodgate lock bridge and separating brake lock bridge respectively, in two lockholes in left side, state bar and back-moving spring are installed, in the lock body bottom chip that there are 12 holes on the surface is installed, be bonded with the magnetic post in state bar bottom, be used for detecting the disconnecting link state, and the chip hole of corresponding states bar is a through hole, lead-in cavity as the state bar, in another hole, be placed with location magnetic post, place in remaining hole and lock number corresponding magnetic post; Said electronic code lock comprises lock body, be installed in the guide pillar in the lockhole and be equipped with and the luminous indication wiring board of the open and close of the corresponding infrared transmitting tube of described infrared receiving tube, the chip of the corresponding magnetic post of and interior dress identical with mechanism code-locked chip architecture and lock is installed in lock body bottom, is used for determining to lock and number encodes.

According to above-mentioned computer key and coding lock; in computer key, also have one reset, power down protection and battery voltage detection module link to each other with single-chip microcomputer, be used for making that system automatically resets when powering on, protect that the RAM content is unlikely loses and in time change battery to user prompt during undertension during power down automatically.

According to above-mentioned computer key and coding lock, in computer key, also have a DC-DC conversion pressurizer to link to each other with single-chip microcomputer, be used for the system that when cell voltage drops to 3V, still can guarantee and work reliably.

Computer key adopts electromagnetism inspection sign indicating number in the utility model, mechanical lock mechanism separated by small and special electric machine and noncontacting switch is opened electricity coding lock, and mechanical lock has lock two beam split-type structurals and electricity coding lock energy output equipment running status, therefore, but fast detecting equipment state and low in energy consumption, error is little, momentum is little, life-span is long, the overall target function is strong, volume is little, structure is tightly beaten and is had and prevents walking lost motion functionality, particularly can import relevant software and make this device have " mistake drawing switch ", " on-load drawing disconnecting link ", " charged hanging ground-wire or splice grafting ground disconnecting link ", " band ground wire or ground connection disconnecting link close a floodgate and send ", five anti-functions such as " mistakenly entering charged chambers "; In addition, adopt dot matrix lcd in this device, carry out Chinese character and show that human-computer dialogue is good, have easy to use, directly perceived, characteristics such as Yi Xue.

The drawing explanation:

Fig. 1 is the circuit block diagram of computer key in the utility model;

Fig. 2 is position probing and current detection circuit circuit theory diagrams among Fig. 1;

Fig. 3 is the structural representation of computer key in the utility model;

Fig. 4 is a mechanical coding lock structural representation in the utility model;

Fig. 5 is the vertical view of mechanical coding lock in the utility model;

Fig. 6 is an A-A cutaway view among Fig. 4;

Fig. 7 is an electronic code lock construction schematic diagram in the utility model;

Fig. 8 is a B-B cutaway view among Fig. 7;

Fig. 9 is an electronic code lock circuit schematic diagram.

Provide embodiment of the present utility model below in conjunction with accompanying drawing:

The utility model is made of computer key and coding lock, said computer key such as Fig. 1～shown in Figure 3, it has a single-chip microcomputer 6 (8031), single-chip microcomputer 6 is connected to Hall probe matrix 4 by string and conversion expansion I/O interface (74LS164) and drive circuit (ULN2803) 5, wherein pop one's head in and 4 form the matrix-scanning circuit by 12 hall devices, 4 the 3rd the hall device positions of should popping one's head in also are equipped with infrared receiving tube 4 ', by the Single-chip Controlling row, column scan, the existence that can detect 12 magnets simultaneously whether, promptly to the position probing of magnet, in addition, this matrix adopt multiplex technique make corresponding receiving tube 4 ' a road not only have the dual-use function that magnet detection has infrared electro to detect again, on the data wire of single-chip microcomputer 6, be connected to RAM, ROM and dot matrix lcd 7, be used for storage information and show pedestrian's machine dialogue of going forward side by side for information about respectively by Chinese character, the corresponding interface at single-chip microcomputer 6 is connected to the analyzing logic control circuit 8 that is made of programmable logic device GAL (can adopt GAL16V8), (also can carry out system's decoding, interface decoding), output at analyzing logic control circuit 8 is connected to the buzzing cue circuit that is made of analog line driver 9 and buzzer 10 respectively, by analog line driver 11, small and special electric machine 12, contact 15, the mechanical coding lock release mechanism that the position detecting circuit 17 that is used for making motor 12 counter-rotatings and contact 15 is resetted constitutes, by isolated power drive circuit 13, high-power controlled thyristor IGBT (14), the electronic code lock release circuit that electrode 15 and current detection circuit 16 constitute, wherein analog line driver 11 adopts the low conducting driver of MOSFBT, make motor 12 constant force squares, permanent rotating speed, rotating control flexibly, isolated drive circuit 13 and high-power controlled thyristor IGBT (14), can open, turn-off the big electric current of 20A, constitute high-power noncontacting switch, described position detecting circuit 17 is made of the magnet steel 22 and the divider resistance R2 that are connected on the hall device 23 between power supply VCC and the ground and be installed on motor 12 axle sleeves, and described current detection circuit 16 is by the serial connection diode D that is used for constant-pressure drop that is connected between the electrode 15 ₁～D ₃And be connected on therebetween current-limiting resistance R ₁With photoelectricity isolated tube T and be connected on power supply V _CCAnd the resistance R between the photoelectricity isolated tube T ₂Constitute, the high-low level switching signal of output is through INT ₁Mouth is given single-chip microcomputer 6 and is detected; interface at single-chip microcomputer 6 also is connected to by resetting and power down protection; battery voltage detection module 1 (can adopt MAX693); system is automatically reset when powering on; automatically the content of protection RAM is unlikely during power down loses and in time changes battery to user prompt during undertension; on single-chip microcomputer 6, also be connected to DC-DC conversion pressurizer 3 and keyboard 2; wherein DC-DC converter 3 guarantees at cell voltage grand below 3V; system still can reliably working; and keyboard 2 has mains switch; systemic-function is selected and definite function; on single-chip microcomputer 6, also have one be used for system in the interface 18 (can adopt RS232) of main-machine communication; the foregoing circuit element solder on the main circuit board and by screw on housing 24; motor 12 is by fixed mount 19 and screw; display 7 is fixing by fixed leg 20; key axle 15 connects with motor shaft 12A by axle sleeve 21; the contact 15 on the left side is fixed on the housing 24 by nut 24; magnet steel 22 is installed on the axle sleeve 21; hall device 23 is welded on the main circuit board and its correspondence position, on wiring board 26, also be welded with Hall probe matrix 4 and infrared receiving tube 4 '.

As Fig. 4～shown in Figure 6, said mechanical coding lock has a lock body 31, at lock body 31 middle parts an installing hole 31A is arranged, in the lockhole on right side, be connected with lock shaft 33 by pin 32, in the upper hole of lock body 31, slide block 29 and back-moving spring 28 are installed by block 30, bottom at lock body 31 is equipped with chip 34 by screw 38,12 holes are arranged on the chip 34 and be divided into two rows, in two lockhole 31B of lock body 31 upper left sides, be separately installed with the bottom and be bonded with the state bar 10 and the back-moving spring 11 of magnetic post 35, two corresponding with state bar 36 on the chip 34 holes are through hole, lead-in cavity as state bar 36, magnetic post 35 in this hole is used for detecting opening of disconnecting link, close state, in second hole of chip 34, be placed with location magnetic post, remaining 9 hole is interior according to lock number placement magnetic post, the coding that is used to lock can be distinguished big lock bridge of plug-in mounting and little lock bridge 27 in lockhole, be used for detecting closing of disconnecting link respectively, divide state.

As Fig. 7～shown in Figure 9, said electronic code lock has a lock body that is made of plastics 41, by screw rod and nut 39 wiring board 46 is installed at the top of lock body 41, is welded with by triode D on the wiring board 46 ₄～D ₆, resistance R ₃With infrared transmitting tube D ₇The switch indicating circuit that constitutes is separately installed with guide pillar 45,40 in lock body 41 left and right side lockholes, by screw 47 chip 43 identical with mechanical lock chip 34 structures is installed in lock body 41, corresponding infrared transmitting tube D on the chip 43 ₇Hole be through hole, first through hole is idle, second hole placement positioning magnetic post 44, in 9 holes in addition the magnetic post 44 corresponding with the number of lock is housed, constitute the lock identification code, in the and arranged on left and right sides of lock body 41 two copper iron chains spares 42 are installed also, with adopting with the electronic code locking bit.

When actual installation, mechanical coding lock is fixed on the disconnecting link handle, and crossbeam and girder 27 are installed in respectively on the lock bridge support, and corresponding with the open and closed position of electric power disconnecting link equipment, and the electronic code lock is installed on the control panel, and is connected in series with switch.

Normal running is a core with the mimic panel main frame, has stored the operation rules of all devices in its main frame in advance, and when mimic panel preview operation, main frame is just examined according to the good operation rules of storage in advance.If operating mistake, then this operating host is not remembered, if operation is correct, then send minor, the expression main frame gets up this operative memory and storage, the preview end of operation, main frame passes to correct operation in the computer key by interface 18 (RS232) in order, show lock number and the type of wanting switch by display 7, operating personnel's Hand Personal Computer key is during to the on-the-spot lock that finds corresponding with it lock number, device numbering according to the computer key demonstration, contact on the computer key (electrode) 15 is inserted in the lock chamber of respective coding lock, detects the correctness of lock number and type by Hall probe matrix 4, at this moment by buzzer 10 send weak point toot, the expression operation is correct, can open lock equipment is operated; If go to the wrong way at interval, insert in the corresponding codes lock, then do not unblank, lock operation by force, simultaneously buzzer 10 report to the police long toot, till computer key is extracted from lock body; If it is correct, carry out unlocking operation, wherein unlocking operation has dual mode, a kind of is the mechanical system release, at this moment, send instruction by single-chip microcomputer 6, turn 90 degrees by analyzing logic control circuit 8 (GAL) output signal and through 12 dextrorotations of analog line driver 11 control motors, mechanical lock opened and make it be rotated counterclockwise 90 degree and reset by position detecting circuit 17, operating personnel open lock back operation disconnecting link, the lock bridge 27 of this position is locked lock body 31, again key is inserted the correctness of lockhole with detecting operation; Another is the release mode of electronic code lock, at this moment single-chip microcomputer 6 sends instruction, output signal to power model 13 and drive thyristor 14 (IGBT) by analyzing logic control module 8 (GAL) and make 15 short circuits of lock body 41 both sides conductive electrodes, whether computer key internal current testing circuit 16 detects and has electric current to flow through simultaneously, signal is judged normal and malfunction whereby, if fault is then reported to the police; Hall probe matrix 4 detects the infrared tube D in the lock body 41 in real time ₇Luminance judges that with this state switch closes or open state, arrives operation back state up to operating personnel's console switch.After release finishes, the key internal manipulation instruction subtracts 1 and point to next operational order, operating personnel carry out the next item down operation, reduce to 0 until pointer, be whole end of operations, all information that to operate of computer key are turned round to simulating the correctness of dish with decision operation afterwards, and so far system has just finished all operations project of this time operation.

Input to the high-level software of " switch trip is handled operation ", " busbar fault is handled operation ", " operation of promptly rationing the power supply ", " promptly sending electric operation ", " ground connection selection operation " and " operation of switch transmission test " six kinds of accident treatment in the computer key in advance, can make this device have five anti-functions, when work, computer key is selected the relevant work mode, get final product.

Claims (4)

1. one kind is applicable to disconnecting link and the computer key of switch and the lock of encoding in the electric power system, constitute by computer key and coding lock, wherein the coding lock is made up of mechanical coding lock and electronic code lock, it is characterized in that, described computer key is by single-chip microcomputer (6), interface and keyboard (2), link to each other with single-chip microcomputer (6) and be used to detect by string and translation interface and analog line driver (5) and lock number and the Hall probe matrix (4) and the infrared receiving tube (4 ') of disconnecting link or switch state of living in, (RAM) that be used for storage information that links to each other with single-chip microcomputer (6), (ROM) and be used to show the dot matrix lcd (7) of lock number and disconnecting link or switch state of living in and MML man-machine language, the analyzing logic control circuit (8) that constitutes by programmable logic device that links to each other with single-chip microcomputer (6), be used for controlling mechanical coding lock, the unlocking operation of electronic code lock, the alarm circuit by analog line driver (9) and buzzer (10) formation that links to each other with analyzing logic control circuit (8) is by analog line driver (11), small and special electric machine (12), the contact (15) that links to each other with small and special electric machine (12) and being used for makes mechanical lock release mechanism that the key axle resets in the contact (15) position detecting circuit (17) constitutes and by isolated drive circuit (13), high-power thyristor (14), electrode (15) and be used for the electronic code lock release circuit that the current detection circuit (16) of sense switch state constitutes and constitute; Said mechanical lock comprises lock body (31), lock shaft (33), slide block (29) and back-moving spring (28), three lockholes that are used for installing combined floodgate lock bridge and separating brake lock bridge (27) are respectively arranged on lock body (31), state bar (36) and back-moving spring (37) are installed in two lockholes (31B) in left side, in lock body (31) bottom the surface is installed the chip of 12 holes (34) is arranged, be bonded with magnetic post (35) in state bar (36) bottom, and it is through hole that the chip (34) of corresponding states bar (36) is gone up hole, in another hole, be placed with location magnetic post (35), be placed with the magnetic post (35) corresponding in remaining hole with the number of lock; Said electronic code lock comprises lock body (41), the open and close that are installed in the guide pillar (40,45) in the lockhole and the infrared transmitting tube (D7) corresponding with infrared receiving tube (4 ') be installed are sent out and are indicated wiring board (46) earlier, and the chip (43) of the corresponding magnetic post (44) of and interior dress identical with mechanism's code-locked sheet (34) structure and lock is installed bottom lock body (41).

2. computer key according to claim 1 and coding lock; it is characterized in that; in computer key, also have one reset, power down protection and battery voltage detection module (1) link to each other with single-chip microcomputer (6), is used for making that system automatically resets when powering on, the automatic RAM of protection content is unlikely during power down loses and in time change battery to user prompt during undertension.

3. computer key according to claim 1 and 2 and coding lock is characterized in that, also have a DC-DC conversion pressurizer (3) to link to each other with single-chip microcomputer (6) in computer key, be used for the system that still can guarantee and work reliably when cell voltage drops to 3V.

4. computer key according to claim 1 and coding lock is characterized in that described position detecting circuit (17) is by being connected on power supply (V _CC) and ground between hall device (23) and be installed in magnet steel (22) and divider resistance (R on motor (12) axle sleeve (21) ₂) constitute, described current detection circuit (16) is by the serial connection diode (D that is used for constant-pressure drop that is connected between the electrode (15) ₁～D ₃) and be connected on therebetween current-limiting resistance (R ₁) and photoelectricity isolated tube (T) and be connected on power supply (V _CC) and the first resistance (R between the electric isolated tube (T) ₂) constitute, and the output of electric current and position detecting circuit (16,17) is through (INT ₁) mouthful link to each other with single-chip microcomputer (6).

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