CN100505127C

CN100505127C - Mechanical caging device for on-off switch and interlocking mechanism for control cabinet door of high-voltage electric main control cabinet

Info

Publication number: CN100505127C
Application number: CNB2007101317362A
Authority: CN
Inventors: 石定良
Original assignee: CHANGSHU SENYUAN ELECTRICAL FACTORY
Current assignee: Changshu City Senyuan Electrical Technology Co.,Ltd.
Priority date: 2007-08-31
Filing date: 2007-08-31
Publication date: 2009-06-24
Anticipated expiration: 2027-08-31
Also published as: CN101114546A

Abstract

A mechanical lock device of the opening and closing switch of the high voltage electric major controlling cupboard and an interlocking mechanism of the branch controlling cupboard door belong to the technical field of the safety protection device for high voltage electrical devices. The invention comprises a first mechanical lock device arranged on the major controlling cupboard body, and a control box arranged on the major controlling cupboard body or the branch controlling cupboard, the control box is provided with a first control lock and a second control lock, the first key for the first control lock and the first mechanical lock device is the same, the first key is unique, the second key for the second control lock and the corresponding second mechanical lock device is the same, and the second key is also unique, the control box is provided with a box controlling key device. The invention has the advantages that the opening and closing switch of the major controlling cupboard are reliably locked in the opening or closing state, and that the reliable connection with the branch controlling cupboard door can be realized, and that the invention with simple structure is convenient to assemble and ensures safety without fault.

Description

The mechanical locking of the on-off switch of high-voltage electrical apparatus master control cabinet and the interlocking device that divides control cabinet cabinet door

Technical field

The invention belongs to high voltage electric equipment safety guard technical field, be specifically related to a kind of mechanical locking and the interlocking device that divides control cabinet cabinet door of on-off switch of high-voltage electrical apparatus master control cabinet.

Background technology

The on-off switch of master control cabinet can be an isolating switch according to the concrete condition of configuration, it also can be killer switch, it can also be on-load switch or the like, the downstream electrical gas holder of master control cabinet is referred to as branch control cabinet usually, custom is No. 1 cabinet, No. 2 cabinets with the Arabic numerals ordering when above when a minute control cabinet is one, and the rest may be inferred, the cabinet door serialization of No. 1 cabinet, No. 2 cabinets is No. 1 cabinet door, No. 2 cabinet doors, and the rest may be inferred.When the on-off switch of master control cabinet is in "on" position, it is the cabinet door that never allows to open branch control cabinet, otherwise can cause security incident, and when the on-off switch of master control cabinet is in gate-dividing state, though can open the cabinet door of branch control cabinet, in a single day but when having people's mistake to close the branch on-off switch, can produce serious safety problem equally, therefore must lock on-off switch, also need simultaneously with minute cabinet door of control cabinet realize with the locking device that is used to lock on-off switch between realize interlocking.

Present measure: on minute cabinet every body of control cabinet, electrification display (industry claims to be with locking type) is installed, the electromagnetic lock that is used for the doorframe locking is installed at Men Yanchu.When in cabinet high pressure being arranged like this, display is bright, and reminds people has electricity, and electromagnetic lock is by locking simultaneously, and the cabinet door can't be opened.The shortcoming of this design is that required element expense is higher; On the cabinet door, must offer the hole that is used to install electrification display and electromagnetic lock, bigger to the destructiveness of cabinet door; When the cabinet door is in opening, because electromagnetic lock is inoperative, therefore on door, also need install travel switch additional or be similar to the element of travel switch and so on and the master control cabinet is that the upstream appliance switch is the on-off switch lock that is electrically connected, yet, as meet the trip electric unit be not automatic element, when not having secondary control system, just can't realize carrying out electrical interlocks between the on-off switch of travel switch and master control cabinet, promptly when the cabinet door is opened, can not avoid mistake to close the on-off switch of master control cabinet, thereby make band high pressure in the branch control cabinet of opening door, danger is very big.

In sum, because the locking device of the on-off switch of present master control cabinet all embodies with non-mechanical structure, therefore reflect the wiring complexity inevitably, professional cumbersome, poor reliability, failure rate height are installed, can not fully stop potential safety hazard, particularly carry out between will be with the on-off switch of master control cabinet (upstream cabinet) and more than one branch control cabinet (downstream cabinet) when chain, the problems referred to above are more outstanding.

Summary of the invention

Task of the present invention is the mechanical locking and the interlocking device that divides control cabinet cabinet door that a kind of on-off switch of high-voltage electrical apparatus master control cabinet will be provided, this interlocking device can realize the on-off switch of master control cabinet is locked in separating brake or "on" position reliably, can embody and divide again between the control cabinet cabinet door reliably chain, can also embody easy for installation, exempt from fault, guarantee safety.

Task of the present invention is finished like this, a kind of mechanical locking of on-off switch of high-voltage electrical apparatus master control cabinet and the interlocking device that divides control cabinet cabinet door, it comprises that one is installed in and disposes being used on the master control cabinet cabinet that at least one cover divides the control cabinet and carry out first mechanical locking of locking at separating brake or closing position to being located at on-off switch on the master control cabinet cabinet, characteristics are: it also include one be located at master control cabinet cabinet or divide the control cabinet both appoint the control box of selecting on the one, first control lock is installed on this control box and is equipped with and second control lock of dividing the quantity of controlling cabinet to equate, wherein, first control lock is identical with employed first key of first mechanical locking, and the quantity of first key is unique one, each second control lock is identical with being used for minute employed second key of second mechanical locking that opens and closes of cabinet door of control cabinet accordingly, and the quantity of second key is to equate with the quantity of described branch control cabinet, be provided with in the described control box and be used for first, second control lock realizes being locked to each other or the box control key apparatus of release, and described first key acts on first control lock and first mechanical locking; Described second key acts on second control lock and second mechanical locking; The effect of cooperatively interacting of first, second key is to described box control key apparatus locking or release.

First mechanical locking of the present invention comprises lock housing, first lock core that matches with described first key, cam, first dead bolt, the latch lever swing arm, latch lever, lock housing is installed on the master control cabinet cabinet, and be positioned at a side of described on-off switch, first lock core is fixed on the lock housing, cam is fixed on first lock core, rotation with first lock core is rotated, be located on the lock housing to the first dead bolt telescopic action, and the lock tongue of first dead bolt upper end is stuck in lock housing, corresponding with the on-off switch alignment pin of described on-off switch, on first dead bolt, be arranged with spring and bolt plate respectively, touch with the inwall and the bolt plate subsides of lock housing respectively at the two ends of its medi-spring, and bolt plate is corresponding with described cam, the upper end of latch lever swing arm is suspended on the lock housing by first bearing pin, and first bearing pin is provided with first torsion spring, the a pair of torsion spring pin of first torsion spring is positioned at respectively in lock housing and the latch lever swing arm, the lower end of latch lever swing arm is a free end, this free end is spacing by the stop screw that is fixed on the lock housing, latch lever is fixed on the nearly bottom of latch lever swing arm, and corresponding with the divide-shut brake handle of on-off switch below described on-off switch.

The position of lock housing of the present invention on master control cabinet cabinet occupy the left side of on-off switch, and maintain distance between the left side of on-off switch, the horizontal range that described distance is with the on-off switch alignment pin is able to extract in on-off switch equates.

Constitute first, second locked position contact angle that can act on bolt plate respectively on the wheel rim of cam of the present invention.

The nearly middle part of latch lever swing arm of the present invention constitutes one and is used to stop the step of cam to counterclockwise motion; Described lock tongue constitutes a milling flat in the side towards described on-off switch alignment pin; Being shaped as of described latch lever is L shaped.

Second mechanical locking of the present invention comprises tool second dead bolt and second lock core that matches with described second key, lock body, lock panel, the interlock plate, the flange of raming, extension spring, the dead bolt limiting plate, lock body and lock panel be fixed on accordingly respectively the cabinet door the door edge in, the outside, second lock core is installed on lock body and the lock panel, the vertical interlock plate axle that is provided with in the bottom of lock body, the two ends of interlock plate constitute respectively rams and prizes head, and the middle part hub setting of interlock plate is on interlock plate axle, the flange of raming is received on the doorframe of cabinet door, with ram corresponding, one end of extension spring is fixed on the interlock plate, the other end is fixed on the dead bolt limiting plate, one side hub setting of dead bolt limiting plate is on lock body, opposite side top is bent with a dead bolt baffle plate that is used to stop second dead bolt, and bottom and sled are corresponding.

The shape of interlock plate of the present invention is in a zigzag substantially.

Box control key apparatus of the present invention comprises travelling carriage, leading truck, spring, travelling carriage is located in the box chamber of control box movably, and occupy between first, second control lock, leading truck is contained in the travelling carriage, fix with control box, one end bearing of spring is on leading truck, and the other end is bearing on the inwall of travelling carriage, and the left and right sidewall of described travelling carriage is corresponding with second, the first control lock dead bolt of second, first control lock respectively.

The advantage of structure disclosed in this invention is: first mechanical locking and first control lock are share unique one first key, therefore when as long as on-off switch is in "on" position, first key can't be pulled up, and then can't go to open first control lock with first key, again owing to realize associated with each other by box control key apparatus between second control lock and first control lock, therefore as long as first control lock does not unlock the situation of (control) to second control lock under, second key on second control lock remains on second control lock, can't pull away, thereby just can't open the cabinet door that branch is controlled cabinet; Otherwise as long as second key remains on the cabinet door of unlatching, can not go to open second control lock so owing to can not pull out, therefore keeping locking by second control lock to first control lock, first key that is plugged on first control lock can't be extracted, so can not remove to open first mechanical locking with first key, thus realized high-voltage electrical apparatus master control cabinet cabinet on-off switch first mechanical locking and divide interlocking between the control cabinet; With in the prior art or use the combining structure of charged display unit and electromagnetic lock, or change over switch compares with the fit structure of procedure lock, and structure has obtained ultimate attainment simplification, and easy for installation and fault-free can be guaranteed fail safe.

Description of drawings

Fig. 1 is the cited representative of an applicant specific embodiment schematic diagram of the present invention.

Fig. 2 is an example structure figure of first mechanical locking of the present invention.

Fig. 3 is an example structure figure of second mechanical locking of the present invention.

Fig. 4 is an example structure figure of box of the present invention chamber key apparatus.

Fig. 5 to Fig. 7 carries out the operating principle schematic diagram of locking or release for disclosing first mechanical locking of the present invention to on-off switch.

Embodiment

For make your auditor especially the public can further understand architectural feature of the present invention and beneficial effect thereof, the spy reaches embodiment in conjunction with the accompanying drawings the specific embodiment of the present invention is described in detail as follows:

See also Fig. 1, as a certain embodiment that is not subjected to concrete restriction, the applicant has provided a cover master control cabinet cabinet 1, this master control cabinet cabinet 1 disposes three covers and divides control cabinet 5, three covers divide control cabinet 5 to be used for scooping out the voltage (energy) that is distributed by master control cabinet cabinet 1, if master control cabinet cabinet 1 is defined as the upstream high-voltage electrical cabinet, a minute control cabinet 5 can be defined as the downstream high-voltage electrical cabinet so.(be illustrated as the left side) at on-off switch 2 places that are adjacent to master control cabinet cabinet 1 first mechanical locking 3 is installed, obviously, implement on-off switch 2 is locked at separating brake or at closing position the divide-shut brake handle 22 that divide to stop mistake, mistake is closed on-off switch 2 by this first mechanical locking 3.

A control box 4 both can be located at the position that not being subjected on the master control cabinet cabinet 1 specifically limited, also can be located at the position that is not subjected to specific limited on the branch control cabinet 5, even control box 4 can also be fixed on the wall that master control cabinet cabinet 1 is installed, divides the power distribution station of controlling cabinet 5 or other position of power distribution station.Owing to divide control cabinet 5 and a cover master control cabinet cabinet 1 phase configuration with three covers in this example, therefore second control lock 42 set or that title is installed has three on control box 4, these three second control lock 42 respectively with the cabinet door 51 (Fig. 3 shows) of corresponding three branch control cabinets 5 on second mechanical locking 7 share unique one second key 8, that is to say always to have three second keys 8.As long as cabinet door 51 is not closed, second key 8 just can't pull away from second mechanical locking 7 so, and then can't go to be inserted on second control lock 42 by second key 8 first control lock 41 is carried out release, first key 6 just can't pull away from first control lock 41, thereby just can not remove to open first mechanical locking 3 with first key 6, vice versa.

See also Fig. 2, as a kind of preferred first mechanical locking 3 that the present invention recommended, its tram on master control cabinet cabinet 1 is the left side that is in on-off switch 2, and it preferably but the structure that definitely is not limited to is done in detail following narration.Lock housing 31 usefulness screw that are substantially rectangle or claim rectangular cover are installed front that screw 311 is fixed on master control cabinet cabinet 1 promptly at present on the face by location status shown in Figure 1 by housing, and the distance of being held between the left side of the right side of lock housing 31 (is example with present shown position state) and on-off switch 2 should ensure that the horizontal range that on-off switch alignment pin 21 is able to extract first, second on-off switch dowel hole 23,24 from on-off switch 2 adapts.Be installed in the position placed in the middle, positive side of lock housing 31 as first lock core 32 of first mechanical locking 3, the structure of this first lock core 32 is identical with the lock core structure of following first control lock 41 that also will mention, and principle also is identical.This lock core is 401 locks (industry standard) as adopting the model of being produced by Chinese Wenzhou City, Zhejiang Province Rui'an City sea smooth lockset Co., Ltd, and concrete principle is: have only left-handed 90 ° first key 6 could be extracted, and dextrorotation on earth the time first key 6 can't extract.Know that therefrom the present invention is that terse scheme with two locks, one key (the two same keys of lock and for unique) solves security protection, more particularly, first lock core 32 be with the lock core of first control lock 41 shared unique first key 6.

Being used for cam 33 to 343 effects of the following bolt plate that also will describe in detail passes cam hole 331 by hold-down screw 334 and is positioned on first lock core 32, with the motion campaign of first lock core 32.Cam 33 constitutes and a pair ofly all can act on first of bolt plate 343, the second locked position contact angle 332,333, state (stretching out) with first dead bolt 34 shown in the present figure is an example, under the manipulation of first key 6, drive cam 33 actions by first lock core 32, the first locked position contact angle 332 of cam 33 is kept out on bolt plate 343, bolt plate 343 is upwards pushed away, spring 342 compressions, first dead bolt 34 is up, lock tongue 341 stretches out, simultaneously, on-off switch 2 must be to be in the position of closing a floodgate, it is the position that divide-shut brake handle 22 is pushed to, and the on-off switch alignment pin 21 that carries spring 211 has been inserted in the first on-off switch dowel hole 23, and the milling flat 3411 on the lock tongue 341 of first dead bolt 34 has blocked on-off switch alignment pin 21, this moment, first key 6 can't be pulled up from first lock core 32, therefore can not go to open first control lock 41 on the control box 4 with first key 6, promptly can not remove to handle the lock core of first control lock 41 with first key 6, make first control lock 41 remain control to second control lock 42, can't extract the cabinet door 51 that second key 8 removes to open branch control cabinet 5 from second control lock 42, therefore be foolproof, all location status applicants of first dead bolt 34 will narrate when Fig. 5 to Fig. 7 is illustrated comprehensively.

The upper end of first dead bolt 34 should be that telescopically work places on the lock housing 31, and the lower end places dead bolt to help on the seat 344, and dead bolt helps seat 344 to be screwed below lock housing 31.Already mentioned spring 342 in front and bolt plate 343 all are located on first dead bolt 34, wherein, keep out respectively on the upper surface of the inwall of lock housing 31 and bolt plate 343 at the two ends of spring 342, promoted bolt plate 343 by resetting (extension) of spring 342 descending, because the bolt plate 343 and first dead bolt 34 fix, therefore first dead bolt 34 is also descending, promptly in lock housing 31, bounce back, and when first, second locked position contact angle 332,333 of cam 33 makes progress pushing tow bolt plate 343, spring 342 compressions, first dead bolt 34 stretches outside lock housing 31.

Latch lever swing arm 35 is arranged on a side of lock housing 31 in cantilever state by first bearing pin 351, and the lower end of latch lever swing arm 35 is a free end, by stop screw 353 tube banks.Constitute a gauffer at the nearly middle part of latch lever swing arm 35, constitute step 354 by this gauffer, again, owing to the appearance of this step 354 makes the global shape of latch lever swing arm 35 be zigzag or is referred to as font.Latch lever swing arm 35 comes from first torsion spring 352 by the active force to stop screw 353.When first of cam 33, the second locked position contact angle 332,333 when all not acting on bolt plate 343, owing to suffer stopping of step 354, cam 33 can't be done counterclockwise spinning movement, unless with latch lever swing arm 35 pendulum from, its step 354 is dodged, and to make latch lever swing arm 35 pendulum from, then must by shape L-shaped and realize with the latch lever 36 that latch lever swing arm 35 connects, and then ground will make latch lever 36 actions, then must embody by divide-shut brake handle 22, divide-shut brake handle 22 is pulled sub-gate position postpone downwards, turn is left-handed first key 6, make cam 33 left-handed, the second locked position contact angle 333 by cam 33 is kept out on bolt plate 343, bolt plate 343 is upwards pushed away, and first dead bolt 34 stretches out in lock housing 31 simultaneously, first key 6 could be pulled away the lock core of handling first control lock 41 from first lock core 32 under this state.

See also Fig. 3, recommend a kind of structure of preferred but second mechanical locking 7 that is not limited to by the following describes as the present invention.Minute the control cabinet 5 cabinet door 51 short transverses nearly middle part the door along 511 places, more particularly, in the medial and lateral of door along 511 with back-to-back form ground fixedly lock body 72 and lock panel 73 respectively, second lock core 71 is installed on lock body 72 and the lock panel 73, second dead bolt 711 on second lock core 71 should be the inboard that extends in cabinet door 51 according to general knowledge, the position that corresponds to each other at the upper and lower end of lock body 72 has respectively extended lock body pivot ear 722, and has vertically extended an interlock plate axle 721 below lock body 72.The global shape of interlock plate 74 is in a zigzag substantially, why be called in a zigzag, be because interlock plate 74 shows as polygonal panel, interlock plate axis hole 7431 on a pair of pivot ear 743 that passes through to be extended of middle part and hub setting are on aforesaid interlock plate axle 721, and carry out controlled location with hold-down nut 7211, that is to say and hold-down nut 7211 revolved and to interlock plate axle 721.The kink of interlock plate 74 1 ends constitutes rams 741, and this rams 741 corresponding with the flange 75 of raming on the doorframe 512 that is arranged on cabinet door 51.The two ends of extension spring 76 are separately fixed on dead bolt limiting plate 77 and the interlock plate axle 721.One side upper and lower of dead bolt limiting plate 77 has respectively extended the pivot ear, offer first pin shaft hole 772 on the pivot ear, this first pin shaft hole 772 be with lock body pivot ear 722 on pivot earhole 7221 adapt, and position each other aligns, penetrate first pin shaft hole 772, pivot earhole 7221 with first bearing pin 773 shown in the figure, make the pivot joint of 77 realizations of dead bolt limiting plate and lock body 72.Constitute dead bolt baffle plate 771 in the bending of the top of the opposite side of dead bolt limiting plate 77, take on spacing to second dead bolt 711 by this dead bolt baffle plate 771, have only when cabinet door 51 when closing, because the two ends of aforesaid interlock plate 74 produce the direction motion by first arrow 10 that is indicated among the figure, make the sled 742 of interlock plate 74 other ends overcome the pulling force of extension spring 76 and promote dead bolt limiting plate 77, make second arrow, the 20 directions motion that is marked in the dead bolt limiting plate 77 towards figure, dead bolt baffle plate 771 is avoided the obstruction to second dead bolt 711, in this case, but be plugged on second key, 8 ability turns, second lock core 71 on second lock core 71, make second dead bolt 711 move at present by illustrated dotted line position shown in the position, and just under this state, cabinet door 51 is in reliable closed condition, and second key 8 is able to extract from second lock core 71 and is inserted on second control lock 42.Know therefrom, at cabinet door 51 not under the closing state, because on same second lock core 71 that second key 8 is maintained at second mechanical locking 7 that is used for handling second control lock 42 and can't pull up, thereby just can't go to handle second control lock 42, vice versa.As seen, adopt the present invention program only to need on cabinet door 51, to offer the installing hole of second lock core, 71 degree, on cabinet door 51, offer macropore and come the installation procedure lock and need not to resemble the prior art for installation procedure lock and change over switch, and the troublesome poeration of procedure lock, reliability standard poor, cost an arm and a leg; Again, adopt the present invention program to need not to resemble the prior art to installation high-voltage charge display device (band locking type) and electromagnetic lock and on cabinet door 51, offer two macropores for installation, and high-voltage charge display device, the required element expense of electromagnetic lock is higher, especially when cabinet door 51 is in opening, electromagnetic lock no longer works, and the present invention is when cabinet door 51 is opened, because second key 8 can not pull away from second lock core 71, thereby can not go to handle second control lock 42 with second key 8, first key 6 is remained on first control lock 41 can't be pulled up, thereby can stop when cabinet door 51 is opened to go to remove locking, and then avoid the danger situation of misoperation on-off switch 2 first mechanical locking 3 with first key 6.

See also Fig. 4, box control key apparatus 9 of the present invention has a travelling carriage 91, the position of this travelling carriage 91 is between first,

second control lock

41,42, both can be to the 41 direction slippages of first control lock, also can be to the 42 direction slippages of second control lock, specifically:, just promote travelling carriages 91 and be moved to the left promptly and draw close to second control lock, 42 directions by the first control lock dead bolt 411 when the first control lock dead bolt 411 of first control lock 41 (under the effect of first key 6) during half-twist left; Otherwise, when handling second control lock 42, make the second control lock dead bolt 421 to the right during half-twist with second key 8, just promote travelling carriages 91 and move right by the second control lock dead bolt 421, promptly draw close to first control lock, 41 directions.Leading truck 92 usefulness screws 43 are fixed on the control box 4, integrally are positioned at travelling carriage 91, and the two ends of spring 93 fix respectively on the corresponding wall body of leading truck 92 and travelling carriage 91.Further know by figure, when the first control lock dead bolt 411 promotes the left side wall 911 of travelling carriage 91, travelling carriage 91 is moved to left; When in like manner the second control lock dead bolt 421 promotes the right side wall 912 of travelling carriage 91, travelling carriage 91 is moved to right.With present shown position is example, and second key 8 can be extracted from second control lock 42 and open cabinet door 51, the first keys 6 and then remain on first control lock 41 and can't extract.The state description of this moment, first mechanical locking 3 has been locked in closing position with position opposite shown in scheming with divide-shut brake handle 22, can not be charged as the branch control cabinet 5 of downstream cabinet.Otherwise, when will be left-handed 90 ° the time with the first control lock dead bolt 411, second key 8 on the cabinet door 51 must be pulled out so and second control lock 42 of planting on, and second key 8 will be able to from cabinet door 51 pull out, then must could realize behind the locking cabinet door 51, handle second control lock 42 by second key 8 of being chosen on second mechanical locking 7 from cabinet door 51, make the second control lock dead bolt 421 by the state of current icon half-twist left, this moment under the restoring force effect of spring 93 with travelling carriage 91 to left translation, could left-handed first key 6 under this state make the first control lock dead bolt 411 from 90 ° of the position deflections left of current icon, thereby be able to first key 6 is pulled away from first control lock 41, and then remove to handle first mechanical locking 3, realization is to the release of on-off switch 2, make to be in the brake-dividing locking state originally and to become the combined floodgate lock-out state, promptly by state shown in Figure 2.

Therefore, first control lock 41 and first mechanical locking 3 have the condition of the uniqueness that pins down each other, promptly by unique 1 first key 6 are controlled; In like manner first control lock 41 and second control lock 42 also constitute the condition of the uniqueness that checks and balance, promptly by unique one second key 8 (at a branch control cabinet 5, when for example resembling, three second keys 8 should be arranged so mutually as a plurality of by three branch control cabinets 5 shown in Figure 1) first control lock 41 is controlled; Also in like manner, also constitute the relation of pining down between second lock core 71 (Fig. 2 shows) of second control lock 42 and second mechanical locking 7.

See also Fig. 5, Fig. 6, Fig. 7 and in conjunction with Fig. 2, the applicant sets forth the interactively of the on-off switch 2 of the present invention and first mechanical locking 3.The position of the cam 33 that Fig. 5 showed is a locked position, promptly be inserted in first key 6 on first lock core 32 of first mechanical locking 3 with clockwise 45 ° of actuatings, cam 33 with first lock core 32 to turning clockwise 45 °, the first locked position contact angle 332 of cam 33 contacts with bolt plate 343, and bolt plate 343 upwards pushed away, driving first dead bolt 34 stretches out in lock housing 31, and the on-off switch 2 of this moment is in closing position owing to divide-shut brake handle 22 upwards boosts, on-off switch alignment pin 21 pins are gone into (insertion) in the first on-off switch dowel hole 23, and stop by the milling flat 3411 on the lock tongue 341 of first dead bolt 34, can't again this on-off switch alignment pin 21 be pulled away artificially, because, for example divide-shut brake handle 22 is pulled downwards and is opened up the separating brake position in case pull away and can handle divide-shut brake handle 22.

But the position of the cam 33 that Fig. 6 shows is an open position, but first key 6 still is on first lock core 32 and can't pulls out, embody with counterclockwise 45 ° of actuatings, first key 6 this position, because when Fig. 5 position, first key 6 has been in dead point (stop) towards clockwise rotation, promptly can't so that to clockwise turn, can only be to counterclockwise turn, touch mutually with bolt plate 343 so but the open position 335 (Fig. 2 shows) of the cam 33 shown in this figure occurred, that is to say the effect of having removed previous 332 pairs of bolt plate 343 of the first locked position contact angle, bolt plate 343 is descending under the restoring force effect of spring 342, it is descending to take first dead bolt 34 by bolt plate 343, promptly in lock housing 31, bounce back, the lock tongue 341 of first dead bolt 34 has been reduced to the level height position that is lower than on-off switch alignment pin 21, under this state, just be able to safely on-off switch alignment pin 21 be extracted from on-off switch 2, just be able to after extracting divide-shut brake handle 22 is pulled separating brake downwards or claimed open position, and then on-off switch alignment pin 21 is planted in the second on-off switch dowel hole 24.

Fig. 7 has shown plant situation in the second on-off switch dowel hole 24 of on-off switch alignment pin 21, and cam 33 is in locking state, and only first key 6 can be pulled out under this state.Because, in order to prevent to pull away on-off switch alignment pin 21 artificially divide-shut brake handle 22 upwards is pushed to closing position, therefore need again cam 33 left-handed 45 °, and get so that cam 33 left-handed 45 ° safeguards are to be avoided stopping by the step 354 of latch lever swing arm 35 embodying, when moving the end to, divide-shut brake handle 22 latch lever 36 is pressed down by it, promoting latch lever swing arm 35 by latch lever 36 swings, be in the limit during to 45 ° and be in left-handed dead point in that cam 33 is left-handed, the second locked position contact angle 333 of cam 33 acts on bolt plate 343, under the active force that overcomes spring 342, bolt plate 343 is upwards pushed away, driving first dead bolt 34 by bolt plate 343 stretches outside lock housing 31, make the milling flat 3411 of lock tongue 341 be barred from the tail end of on-off switch alignment pin 21, thereby can't drawing on-off switch alignment pin 21, guarantee that on-off switch 2 is in the separating brake position perfectly safely.

Above-mentioned explanation by the applicant, should understand and achievement of the present invention and be: will be used for using unique one first key 6 first control lock 41 of on-off switch 2 on first mechanical locking 3 that separating brake or closing position lock and control box 4 is common, as long as first mechanical locking 3 fails correctly to reach on-off switch 2 is realized locking at separating brake or closing position, first key 6 can't be extracted from first lock core 32 of first mechanical locking 3 so, and then just can't go to handle first control lock 41 of control box 4, make second control lock 42 be in state of a control by first control lock 41, promptly second key 8 that is plugged on second control lock 42 can't be pulled out, guarantee to go to open with second key 8 the cabinet door 51 of branch control cabinet 5, vice versa.As long as cabinet door 51 not by the situation of locking under, second key 8 is in all the time on the cabinet door 51 and can not pulls up, under this state, first control lock 41 is unable to stir any more, promptly it is being restrained by second control lock 42, therefore first key 6 can't take out first lock core 32 of opening first mechanical locking 3 from first control lock 41, and promptly first dead bolt 34 is stiff.So can guarantee personal safety fully, promptly when cabinet door 51 was opened, the divide-shut brake handle 22 that can not will be in gate-dividing state was operated "on" position.

Describe by the foregoing description and to know that also the quantity of second control lock 42 of the present invention is not limited to three covers, when minute control cabinet 5 for many cases more during as four, five etc., second control lock 42 increases on year-on-year basis so.

Claims

1, a kind of mechanical locking of on-off switch of high-voltage electrical apparatus master control cabinet and the interlocking device that divides control cabinet cabinet door, it comprises that one is installed in and disposes being used on the master control cabinet cabinet (1) that at least one cover divides control cabinet (5) and carry out first mechanical locking (3) of locking at separating brake or closing position to being located at on-off switch (2) on the master control cabinet cabinet (1), it is characterized in that it also include one be located at master control cabinet cabinet (1) or divide control cabinet (5) both appoint the control box of selecting on the one (4), first control lock (41) is installed on this control box (4) and second control lock (42) that equates with the quantity of dividing control cabinet (5) is installed, wherein, first control lock (41) is identical with employed first key of first mechanical locking (3) (6), and the quantity of first key (6) is unique one, each second control lock (42) is identical with employed second key of second mechanical locking (7) (8) that opens and closes of cabinet door that is used for accordingly minute control cabinet (5), and the quantity of second key (8) is to equate with the quantity of described branch control cabinet (5), be provided with in the described control box (4) and be used for first, second control lock (41,42) realize being locked to each other or the box control key apparatus (9) of release, described first key (6) acts on first control lock (41) and first mechanical locking (3); Described second key (8) acts on second control lock (42) and second mechanical locking (7); When described second control lock (42) when being in the lock state, described box control key apparatus (9) is to being in first control lock (41) control under the opening, and first key (6) that is used to handle first control lock (41) remains in first control lock (41); When first control lock (41) when being in the lock state, described box control key apparatus (9) is to being in second control lock (42) control under the opening, and second key (8) that is used to handle second control lock (42) remains in second control lock (42).

2, the mechanical locking of the on-off switch of high-voltage electrical apparatus master control cabinet according to claim 1 and the interlocking device that divides control cabinet cabinet door, it is characterized in that described first mechanical locking (3) comprises lock housing (31), first lock core (32) that matches with described first key (6), cam (33), first dead bolt (34), latch lever swing arm (35), latch lever (36), lock housing (31) is installed on the master control cabinet cabinet (1), and be positioned at a side of described on-off switch (2), first lock core (32) is fixed on the lock housing (31), cam (33) is fixed on first lock core (32), rotation with first lock core (32) is rotated, be located on the lock housing (31) to first dead bolt (34) telescopic action, and the lock tongue (341) of first dead bolt (34) upper end is stuck in lock housing (31), corresponding with the on-off switch alignment pin (21) of described on-off switch (2), on first dead bolt (34), be arranged with spring (342) and bolt plate (343) respectively, touch with the inwall and bolt plate (343) subsides of lock housing (31) respectively at the two ends of its medi-spring (342), and bolt plate (343) is corresponding with described cam (33), the upper end of latch lever swing arm (35) is suspended on the lock housing (31) by first bearing pin (351), and first bearing pin (351) is provided with first torsion spring (352), the a pair of torsion spring pin of first torsion spring (352) is positioned at respectively in lock housing (31) and the latch lever swing arm (35), the lower end of latch lever swing arm (35) is a free end, this free end is spacing by the stop screw (353) that is fixed on the lock housing (31), latch lever (36) is fixed on the nearly bottom of latch lever swing arm (35), and corresponding with the divide-shut brake handle (22) of on-off switch (2) in the below of described on-off switch (2).

3, the mechanical locking of the on-off switch of high-voltage electrical apparatus master control cabinet according to claim 2 and the interlocking device that divides control cabinet cabinet door, it is characterized in that the position of described lock housing (31) on master control cabinet cabinet (1) occupy the left side of on-off switch (2), and maintain distance between the left side of on-off switch (2), the horizontal range that described distance is with on-off switch alignment pin (21) is able to extract in on-off switch (2) equates.

4, the mechanical locking of the on-off switch of high-voltage electrical apparatus master control cabinet according to claim 2 and the interlocking device that divides control cabinet cabinet door is characterized in that constituting first, second locked position contact angle (332,333) that can act on bolt plate (343) respectively on the wheel rim of described cam (33).

5, the mechanical locking of the on-off switch of high-voltage electrical apparatus master control cabinet according to claim 2 and the interlocking device that divides control cabinet cabinet door, the nearly middle part that it is characterized in that described latch lever swing arm (35) constitutes one and is used to stop the step (354) of cam (33) to counterclockwise motion; Described lock tongue (341) constitutes a milling flat (3411) in the side towards described on-off switch alignment pin (21); Being shaped as of described latch lever (36) is L shaped.

6, the mechanical locking of the on-off switch of high-voltage electrical apparatus master control cabinet according to claim 1 and the interlocking device that divides control cabinet cabinet door, it is characterized in that described second mechanical locking (7) comprises second lock core (71) that has second dead bolt (711) and match with described second key (8), lock body (72), lock panel (73), interlock plate (74), the flange (75) of raming, extension spring (76), dead bolt limiting plate (77), lock body (72) and lock panel (73) are fixed on the door of cabinet door (51) respectively accordingly along in (511), the outside, second lock core (71) is installed on lock body (72) and the lock panel (73), the vertical interlock plate axle (721) that is provided with in the bottom of lock body (72), the two ends of interlock plate (74) constitute respectively rams (741) and prizes (742), and the middle part hub setting of interlock plate (74) is on interlock plate axle (721), the flange (75) of raming is received on the doorframe (512) of cabinet door (51), (741) are corresponding with raming, one end of extension spring (76) is fixed on the interlock plate (74), the other end is fixed on the dead bolt limiting plate (77), one side hub setting of dead bolt limiting plate (77) is on lock body (72), opposite side top is bent with a dead bolt baffle plate (771) that is used to stop second dead bolt (711), and the bottom is corresponding with sled head (742).

7, the mechanical locking of the on-off switch of high-voltage electrical apparatus master control cabinet according to claim 6 and the interlocking device that divides control cabinet cabinet door is characterized in that the shape of described interlock plate (74) is in a zigzag substantially.

8, the mechanical locking of the on-off switch of high-voltage electrical apparatus master control cabinet according to claim 1 and the interlocking device that divides control cabinet cabinet door, it is characterized in that described box control key apparatus (9) comprises travelling carriage (91), leading truck (92), spring (93), travelling carriage (91) is located in the box chamber of control box (4) movably, and occupy first, second control lock (41,42) between, leading truck (92) is contained in the travelling carriage (91), fix with control box (4), one end bearing of spring (93) is on leading truck (92), and the other end is bearing on the inwall of travelling carriage (91), the left side of described travelling carriage (91), right side wall (911,912) respectively with second, first control lock (42,41) second, the first control lock dead bolt (421,411) corresponding.