CN2273455Y

CN2273455Y - Lockset of locking apparatus for electric switch anti-incorrect operation

Info

Publication number: CN2273455Y
Application number: CN 96224566
Authority: CN
Inventors: 魏伟; 石立仁; 徐卓魁
Original assignee: FENGYUN ELECTRIC SELF-AUTOMATIC EQUIPMENT FACTORY JIANGXI PROV
Current assignee: FENGYUN ELECTRIC SELF-AUTOMATIC EQUIPMENT FACTORY JIANGXI PROV
Priority date: 1996-09-05
Filing date: 1996-09-05
Publication date: 1998-01-28
Anticipated expiration: 2006-09-05

Abstract

The utility model relates to a lockset for blocking device for false operation prevention of electric switches. The utility model comprises a lock body, a lock core, a lock bolt, a latch, a hand wheel and a contact switch, wherein, the latch which forms a stepped shaft shape is composed of big and small cylindrical sections; the lock body is provided with a keyhole; in addition, the lockset is provided with a contact switch device. The utility model has the function of dummy routine walking prevention that operation is implemented after unlocking, and the operation is truly targeted, otherwise a key can not be pulled out. Compared with the prior art, the utility model has the advantages of reliable blocking and convenient installation, operation and maintenance.

Description

The lockset of the fool proof locking device of power switch

The utility model relates to a kind of lockset that is used for the fool proof locking devices of power switch such as power system transformer substation, switchyard.

Mandatory locking device on the power switch is the important techniques measure that electric power system prevents artificial misoperation fault, should use the lockset of preventing walking dummy routine.Open the lock inoperation or operated not put in place and be called to walk dummy routine.The program control error-proof device of internal microcomputer all adopts two locks or three locks to realize preventing walking empty function at present, and complexity not only is installed, and operation inconvenience.

The purpose of this utility model is to provide a kind of lockset that possesses the fool proof locking device of power switch easy to install of preventing walking dummy routine.

For achieving the above object, the utility model adopts following technical scheme: it comprises lock body, latch, handwheel, dead bolt, lock core, latch is the multidiameter shape, form by big or small cylindrical section, latch passes from lock body and stretches out, and be bearing on the lock body by the matched in clearance of great circle shell of column and lock body, its small column middle part and end are fixed with spacer pin and handwheel respectively; Lock body is provided with keyhole, the key hole wall is provided with bumping post, lock core is housed at the bottom of the keyhole, there is a horizontal raised line lock core upper end, and the eccentric cylinder that stretch out the lower end inserts in the translot of dead bolt, and dead bolt is vertical with lock core, dead bolt places in the hole vertical with latch on the lock body inwall, there is spring on dead bolt afterbody top, and the position of dead bolt can be blocked latch and move along its axis, also is provided with a contact-making switch device on the lock body.The contact-making switch device comprises touching lever, spring leaf, the interior electrode of electrode hole that places in the lock body outer wall circular hole, one boss is arranged in the middle of the touching lever, the back-moving spring at the bottom of being fixed on the saturating lid on the lock body and withstanding on the hole is pushed up on the boss two sides respectively, one of touching lever passes lid and stretches out, and the other end is passed back-moving spring and entered the lock body internal cavities; The position of spring leaf is corresponding with touching lever, and spring leaf and electrode are fixed in the lock body by insulation board and collets respectively, is electrically connected by lead between spring leaf and the electrode.

What the utlity model has that general lockset do not possess prevents walking the dummy routine function, must operation after promptly unblanking, and operation puts in place really, otherwise the key of the usefulness of unblanking pulls out to come out, and then next step operation can't be carried out.Compared with prior art, has reliable, simple in structure, the convenient for installation and maintenance advantage of locking.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

Fig. 1 is an outline drawing of the present utility model;

Fig. 2 is a structural representation of the present utility model;

Fig. 3 is the B-B cutaway view of Fig. 2:

Fig. 4 is the C-C cutaway view of Fig. 3;

Fig. 5 is the structural representation of the key of the utility model use;

Fig. 6 is the utility model user mode figure.

In Fig. 1, lock body 1 top is provided with keyhole 6 and electrode hole 5, is provided with installing hole 8 around its underpart, and latch 2 passes from lock body, and its head stretches out, and the latch top is provided with the contact-making switch device.Also be provided with the cavity that is used for identification lock between lock body top keyhole and the electrode hole.Fig. 2 also is the A-A cutaway view of Fig. 3.Latch is divided into two sections of big small cylinders in Fig. 2, and the great circle shell of column cooperates with interporal lacuna on the lock body, both latch is bearing on the lock body, and latch can be moved along its axis, and roundlet shell of column end is fixed with handwheel 7, and its middle part is provided with spacer pin 9.The latch top is provided with the contact-making switch device, this device is that a centre has the touching lever 3 of a boss to be arranged in the lock body outer wall hole parallel with latch, be stamped 4 above the hole, there is back-moving spring 11 on the top between touching lever and the hole, stretch out respectively at touching lever two, and one of the touching lever that is positioned at lock body is provided with spring leaf 10 along its axis direction, in the time of in touching lever is pressed into lock body, touching lever contacts with spring leaf, can make switch and use.In Fig. 3, spring leaf is electrically connected with electrode 16 by lead 18, and spring leaf and electrode are fixed on insulation board 19 and collets 17 respectively and make it in the lock body to insulate with lock body.Lock core 13 is installed at the bottom of the keyhole on the lock body, and there is a horizontal raised line lock core upper end, and the eccentric cylinder that stretch out the lock core lower end inserts in the translot of dead bolt 14, and dead bolt is vertical with lock core, and dead bolt places in the hole vertical with latch on the lock body inwall, and there is spring 15 on dead bolt afterbody top.Dead bolt can pin latch, and when using key 20 rotational lock cores, the eccentric cylinder of lock core lower end is retracted in the lock body wall dead bolt, and the great circle shell of column of latch can be retracted in the lock body.After the great circle shell of column is retracted into the lock body inner chamber,, can not reset because dead bolt withstands on the big column section surface.The key hole wall is provided with bumping post 12 in Fig. 4, just can extract after key must be resetted, and the eccentric small column of lock core lower end is inserted in the translot of dead bolt.Key 20 is a hollow circular-tube in Fig. 5, and the horizontal raised line that parallels to the axis on position, groove width and the lock core that has elongated slot 21 and short groove 23, two grooves in its lower end is corresponding, and the horizontal raised line of lock core can be snapped onto in the groove.At the vertical arc-shaped slot 22 that also has with tube's axis of tube wall, this groove links to each other with elongated slot.After key bit inserted keyhole and rotates the unlatching lock, bumping post entered arc-shaped slot along elongated slot, and key can not be extracted.In Fig. 6, anchor ear 26 cooperates with cross-arm 25 and is fixed on the disconnecting link dwang, is drilled with two holes on the anchor ear sidewall, and the latch on the lock body is inserted in the hole of anchor ear, and another top, hole also is provided with collision block 24.After lock was opened, anchor ear rotated, and collision block contact with touching lever, and the signal of telecommunication state in collision block and the lock body changes, and latch can insert in the hole on the anchor ear simultaneously, satisfiedly locked interior mechanical release condition, and key can be extracted.If it is not in place or as you were that anchor ear rotates, do not satisfy unlocking condition, thereby reach locking and prevent walking the purpose of dummy routine.

Claims

1, the lockset of the fool proof locking device of a kind of power switch, comprise lock body, latch, handwheel, dead bolt, lock core, it is characterized in that: latch (2) is the multidiameter shape, form by big or small cylindrical section, latch passes from lock body (1) and stretches out, and be bearing on the lock body by the matched in clearance of great circle shell of column and lock body, its small column middle part and end are fixed with spacer pin (9) and handwheel (7) respectively; Lock body (1) is provided with keyhole (6), the key hole wall is provided with bumping post (12), lock core (13) is housed at the bottom of the keyhole, there is a horizontal raised line lock core (13) upper end, the eccentric cylinder that stretch out the lower end inserts in the translot of dead bolt (14), and dead bolt (14) is vertical with lock core (13), and dead bolt (14) places in the hole vertical with latch on the lock body inwall, there is spring (15) on dead bolt afterbody top, and the position of dead bolt can be blocked latch and move along its axis; Also be provided with a contact-making switch device on the lock body.

2, the lockset of the fool proof locking device of power switch according to claim 1 is characterized in that: the contact-making switch device comprises touching lever (3), spring leaf (10), the interior electrode (16) of electrode hole (5) that places in the lock body outer wall circular hole; The saturating lid (4) that has a boss, boss two sides to push up respectively in the middle of the touching lever to be fixed on the lock body and withstand on the hole at the bottom of back-moving spring (11), one of touching lever passes lid and stretches out, the other end is passed back-moving spring and is entered the lock body internal cavities; The position of spring leaf is corresponding with touching lever, and spring leaf and electrode are fixed in the lock body by insulation board (19) and collets (17) respectively, is electrically connected by lead (18) between spring leaf and the electrode.