CN203165727U - Multifunctional control interlocking device of high-tension metal enclosed switchgear - Google Patents

Abstract

The utility model relates to a multifunctional control interlocking device of high-tension metal enclosed switchgear. Vertical guide grooves and a horizontal guide groove are arranged in lateral parts of the inner wall of a doorframe of a cable chamber of the high-tension switchgear. A lower baffle plate and an upper baffle plate are arranged in each vertical guide groove, wherein the upper and lower baffle plates are equipped with a high-voltage grounding switch operation hole, and each of the upper and lower baffle plates can move up and down linearly; the upper baffle plate is equipped with a lifting handle and two connecting rods, wherein the first connecting rod is connected with a slide block which can move in the horizontal guide groove, the lower baffle plate is equipped with a guiding square rod which is connected with the second connecting rod via a fixing shaft, and a connecting end of the second connecting rod is equipped with a return spring; a long square rod whose upper end is connected with a positioning lock plate of an isolation breaker is arranged at the right side of the inner wall of the doorframe, a bending rod is connected onto the upper baffle plate, and one end of the bending rod is arranged in an oval stroke slotted hole of the long square rod; and a double-opening guide groove is arranged in the side face of the doorframe of the cable chamber of the high-tension switchgear, a baffle plate which can slide up and down is installed in the double-opening guide groove, and a return spring is arranged under the baffle plate.

Description

Function composite high-pressure metal sealing switch equipment is controlled interlock

Technical field

The utility model belongs to high voltage switchgear security protection and control device technical field, relates to a kind of function composite high-pressure metal sealing switch equipment and controls interlock.

Background technology

At present, the design that high-pressure metal sealing switch equipment well known in the art is controlled interlock is guidance with " five is anti-" of standard code all, and so-called " five is anti-" typically refers to: 1, prevent the mistake branch, close circuit breaker; 2, prevent the on-load branch, close isolating switch; 3, prevent charged closing (extension) earthed switch (earth connection); 4, prevent from being with ground connection disconnecting link (earth connection) to close circuit breaker (isolating switch); 5, prevent mistakenly entering charged chamber.Conventional device is the discrete arrangement of function singleness based on the main switch in the complete high voltage switchgear (circuit breaker, isolating switch, earthed switch etc.) and pivot device (instrument transformer, fuse, main strutting piece etc.), controls transmission mechanism and interlock thereof and is independent design transition and connects interlock.But system's interlock of this type of device is loose numerous and jumbled, mandatoryly prevents that misoperation is not rigorous, and hidden danger is too many.For example at present the most representative formal dress formula defective that the interlocking embodiment exists of controlling that can remove metal enclosed switchgear is: 1, by the trip bolt on the breaker chamber door or operation board as the anti-misoperation measure, realization prevents the mistake branch, closes circuit breaker, not mandatory, the complex operation of tool; 2, by handcart type breaker operating mechanism, chassis car and three separate operations systems of earthed switch operation axis, cooperation is finished and is prevented the on-load branch, closes isolating switch, all interlock systems and driving member all are arranged in the charged compartment of cabinet inner high voltage, in length and breadth, up and down, all around intersects, cannot see and can not touch, supervision, maintenance difficulty, complex structure; 3, the spacer pin of chassis car interlock stretches out, and laterally the remote ground cutter handle hole baffle plate that promotes is lockable, and stops ground cutter operation, prevents charged closing (extension) earthed switch (earth connection); This device is by being built in sightless horizontal and vertical a plurality of links conversion transmissions in the cabinet, and stroke is long, contraposition is difficult, structural member is many, is difficult for debugging and precise control judgement; This device adopts the box-like bent plate of profiled metal of band flange as the shield of earthed switch handle hole in addition, and in use, this shield easy deformation causes interlocking device's clamping stagnation and can not operate, and has potential safety hazard; 4, after earthed switch closes a floodgate, rely on the tabular spacing little block on the longitudinal axis action bars to stretch out, stop circuit breaker cart vertically not to be pushed to the service position by test position along guide rail, prevent from being with ground connection disconnecting link (earth connection) to close circuit breaker (isolating switch), the transmission axis was comparatively elongated because should interlock, the reduction torsion spring that amount of deflection is big and axle is provided with, cause in the small square hole that tabular little block is provided with from guide rail overhang very unstable, in addition, earthed switch handle hole baffle plate and tabular little block easy deformation, be difficult to guarantee the angle of major axis rotary stopper, the possibility that exists interlocking device to lose efficacy; 5, high-tension cable chamber gate interlock is realized by earthing switch operating mechanism, and when the earthed switch separating brake, the cam-train of installing on the earthed switch operation major axis makes the bearing pin in the interlocking device of Xiamen pin the hyoplastron that is fixed on the Xiamen, and the Xiamen can not be opened; When earthed switch closed a floodgate, the cam-train that earthed switch operation major axis is installed pressed down bearing pin, makes the neck on the bearing pin be positioned at the hyoplastron position, and hyoplastron can be thrown off bearing pin, and the Xiamen can be opened, and prevents mistakenly entering charged chamber.Under the normal condition, this interlocking can be realized the security protection requirement of Xiamen, but, under the situation after open the Xiamen when normal maintenance process, earthed switch still can divide, closing operation, if earthed switch separating brake at this moment, circuit breaker just can carry out closing operation, in case and close the circuit breaker pass, then the cable vault is just charged, and since the Xiamen when being in open mode the maintainer be easy to the cable vault of mistakenly entering into charged, lead to human casualty accident, this also is a serious potential safety hazard that exists in the existing design, namely when the anti-error interlocking of design, only just " transmission operation " considers that the Xiamen can not be opened when the cable vault was charged, and the cable vault can be charged when opening in the Xiamen and ignored " interruption maintenance ", causes equipment to have the possibility of " mistakenly entering charged chamber " in " five is anti-".

In addition, the cam-train of prior art mesohigh earthed switch operating axis front end is controlled part, conduct major axis from connecting before the cabinet to cabinet by an operational torque, the rear end of this major axis connects high voltage ground switch, front end is equipped with the lobe plate of multi-disc or multiple shape, form cam-train, rotation by major axis, the angle that drives cam-train changes, and then to shield and other interlocking device generation effects, the number of spare parts of this control system is many and numerous and diverse, the nargin that assembling is adjusted is little, and installing space is narrow and small, and especially the cooperation between cam and shield and other interlocking devices is difficult to guarantee designing requirement, cause interlocking device to be failure to actuate or misoperation, have the serious potential safety hazard of " mistakenly entering charged chamber " equally.

The utility model content

The purpose of this utility model is to overcome the shortcoming that prior art exists, change in function composite high voltage switchgear integral arrangement on the basis of traditional design theory, provide a kind of conceptual design novelty, simple and reasonable, easy-to-operate, parts are less and the function composite high-pressure metal sealing switch equipment of the centralized arrangement that more becomes is controlled interlock.

The technical solution that be used for to realize the foregoing invention purpose is such: the function composite high-pressure metal sealing switch equipment that provides is controlled interlock and is comprised a cover and be installed in interlock on the function composite high voltage switchgear cable vault doorframe inwall, the left and right sides at high voltage switchgear cable vault doorframe inwall is provided with vertical guide groove, be provided with horizontal guide groove in the left side of doorframe inwall, in two vertical guide grooves, be respectively equipped with band high voltage ground switch handle hole and can making straight-line lower baffle plate and overhead gage up and down in the guide groove separately, be equipped with on the overhead gage and promote handle and two connecting rods, be connected with the slide block that in horizontal guide groove, to make left and right displacement at first connecting rod, place, left side at the doorframe inwall is provided with a slide block lockhole, be provided with the guiding square bar at lower baffle plate, the guiding square bar is connected with second connecting rod by fixed axis, at the link of second connecting rod a back-moving spring is arranged; Be provided with the rectangular bar of a belt length circle stroke slotted eye at the place, right side of doorframe inwall, also be connected with a knee on overhead gage, the other end of knee places in the oval stroke slotted eye of rectangular bar, and rectangular bar upper end is connected with isolation circuit breakers location jam plate; Be provided with two opening guide grooves at place, the left side of high voltage switchgear cable vault frame side facade, the baffle plate that can slide up and down along groove is installed in two opening guide grooves, below baffle plate, be provided with back-moving spring.

The utility model technical solution also comprises: on lower baffle plate and overhead gage, respectively have one can be involutory in opposite directions the small semicircle opening, two small semicircle openings form a diameter less than the circular hole of high voltage ground switch handle hole diameter set on the equipment doorframe in conjunction with the back, the interior isolation circuit breakers of cabinet this moment is in to close and closes the position, and six square shafts are plugged in the operating handle of high voltage ground switch.

Technical solution of the present utility model also comprises: when promoting the handle lifting, second connecting rod moves downward lower baffle plate by being fixed on the axle on the equipment doorframe and the guiding square bar that is installed on the lower baffle plate, overhead gage and lower baffle plate are opened, after promoting handle release, overhead gage and lower baffle plate be homing under the effect of back-moving spring.

Technical solution of the present utility model also comprises: earthed switch allows under the prerequisite of operation in cabinet, the slide block that is connected with first connecting rod is made left and right displacement in horizontal guide groove, when promoting the handle lifting, slide block movement goes out doorframe, at this moment, earthed switch is in the state that closes that closes, if high-tension cable chamber cabinet door is opened, the cabinet goalkeeper can't close because exposing of slide block is spacing so, if earthed switch was shown in an open position the cabinet door and cut out this moment, slide block can move in the lockhole of the slide block that the cabinet doorjamb is provided with so, and cable vault's door can't be opened; Stop in interlock system under the prerequisite of charged branch or splice grafting ground switch, when after high-tension cable chamber cabinet door is closed baffle plate being depressed, slide block movement goes out doorframe, and after high-tension cable chamber cabinet door was opened, baffle plate resetted, and slide block skids off the guide groove outlet.

Technical solution of the present utility model also comprises: the isolation circuit breakers location jam plate that rectangular bar is connected with its upper end links to each other, when promoting the handle lifting, by knee the isolation circuit breakers location jam plate that rectangular bar is connected with its upper end is together promoted, at this moment, the center positioning hole of isolation circuit breakers location jam plate, depart from the location lock shaft of isolation circuit breakers, isolation circuit breakers can not be locked; After the lifting handle resets, the corresponding center positioning hole that also passes isolation circuit breakers location jam plate of the location lock shaft of isolation circuit breakers, this moment, isolation circuit breakers was locked.

Technical solution of the present utility model also comprises: be provided with jam plate at cabinet inner high voltage earthed switch, on the cabinet door inwall of high-tension cable chamber, also be provided with the bent plate of a band open slot, be provided with a slide block under the open slot, when equipment inner high voltage earthed switch during at open position, jam plate drops in the open slot that is fixedly installed in bent plate on the cabinet door inwall of high-tension cable chamber, and high-tension cable chamber cabinet door is locked because of stopping of jam plate and slide block.Wherein, said bent plate is L type shape, and the centre is provided with open slot, and in bent plate riveted joint a long shaft rod and a stub shaft, jam plate being arranged is that a side is to face directly and opposite side is the metal plate of zigzag face.

Comprehensive above-mentioned technical scheme, the utility model is controlled interlock to existing high-pressure metal sealing switch equipment and has been made multinomial substantial improvement and innovation, it by be installed on the high voltage switchgear cable vault doorframe inwall the modularization interlock and with the form that arranges of function composite isolation circuit breakers chamber door actuation means, the difunctional operating mechanism of isolation circuit breakers and earthed switch operating mechanism, according to the manipulative procedure of strictness, formed the complete tight reliable enforceable anti-misoperation interlock system of complete high voltage switchgear.Wherein, (1), breaker chamber door are the lever gear doors by the opening and closing of special-purpose key handle operation, do not establish the divide-shut brake button of circuit breaker on the door, prevent the mistake branch, close circuit breaker.Simple, convenient, compact program is reliable; (2), when circuit breaker is in closing position, isolating switch manually and electric operating all provided for oneself the programed interlocking prevention, prevent the on-load branch, close isolating switch; (3), withdrawable isolation circuit breakers only when earthed switch is in the separating brake position, just can be locked, after locking was finished, interlocking device stoped earthed switch is carried out any operation, prevents charged splice grafting ground switch; (4) otherwise, when earthed switch closes fashionablely, withdrawable isolation circuit breakers will be in gate-dividing state, be disengaged locking in cabinet, and stop the isolation circuit breakers breaking-closing operating, prevent from being with the ground connection disconnecting link to close circuit breaker (isolating switch); (5), if circuit breaker is in latched position, high-tension cable chamber door must be in off-position, and earthed switch must be in the separating brake position, this position can prevent mistakenly entering charged chamber with the inner interlocking locking of cable vault's door; Otherwise, open the cable vault in front of the door, must earlier earthed switch be in closing position, be prevented from operation after the unlatching; Simultaneously, after isolation circuit breakers goes out of lock, also will be prevented from operation, satisfy the requirement that prevents mistakenly entering charged chamber; Be installed on the emergency unlocking device on cable vault's door inwall, outside cabinet, by special-purpose solution lock tool, allow through operational order, without other procedure operation, namely can finish in case of emergency the unconditional unlatching to high-tension cable chamber cabinet door.

Compared with prior art, the utility model has been considered the base regime that high voltage switchgear is controlled comprehensively, and high voltage switchgear is prevented the strict demand design of misoperation according to " electric power safety operating standard " and national standard, has the conceptual design novelty, simple and reasonable, less and the advantages such as the centralized arrangement that more becomes of parts, it has got rid of the mode that the interlocking transmission link is set at the electrification in high voltage compartment, really accomplish easy-to-operate, and creationary " transmission operation " and " interruption maintenance " prevented that the composite factor of misoperation from merge considering, formed new concept and new construction that a kind of innovative high voltage switchgear prevents misoperation.

Description of drawings

Fig. 1 is the structural representation of a specific embodiment of the utility model.

Fig. 2 is that the A-A of Fig. 1 is to view.

Fig. 3 is that the B-B of Fig. 1 is to view.

Fig. 4 is the control of cable vault's door lock and emergency release structural representation in the utility model.

Fig. 5 is the front view of member bent plate among Fig. 4.

Fig. 6 is the vertical view of Fig. 5.

Fig. 7 is the schematic diagram of member jam plate among Fig. 4.

Fig. 8 is the schematic diagram of breaker chamber door.

Fig. 9 is the schematic diagram of key handle.

The title of each number designation is respectively among the figure: 1-lower baffle plate, 2-overhead gage, 3-baffle plate, 4-slide block, the 5-back-moving spring, 6-isolation circuit breakers location jam plate, the rectangular bar of 7-, the 8-knee, 9-connecting rod, 10-connecting rod, 11-promotes handle, 12-bent plate, 13-slide block, 14-hangs spring screw, 15-spring, 16-jam plate, 17-isolation circuit breakers chamber door, 18-key handle, the 19-square bar that leads.

Embodiment

Below with reference to accompanying drawing the utility model content is described further, but practical application structure of the present utility model is not limited in embodiment shown in the drawings.

Referring to accompanying drawing, function composite high-pressure metal sealing switch equipment described in the utility model is controlled interlock and has been comprised be used for the control high-tension cable chamber cabinet door unlatching and locking and control earthed switch that a cover is installed on the function composite high voltage switchgear cable vault doorframe inwall and open and close the interlock that closes.The left and right sides at high voltage switchgear cable vault doorframe inwall is provided with vertical guide groove, be provided with horizontal guide groove in the left side of doorframe inwall, in two vertical guide grooves, be respectively equipped with band high voltage ground switch handle hole and can making straight-line lower baffle plate 1 and overhead gage 2 up and down in the guide groove separately, on lower baffle plate 1 and overhead gage 2, respectively have one can be involutory in opposite directions the small semicircle opening, two small semicircle openings form a diameter less than the circular hole of high voltage ground switch handle hole diameter set on the equipment doorframe in conjunction with the back.Be equipped with at overhead gage 2 and promote handle 11 and two connecting rods 9,10, be connected with the slide block 4 that in horizontal guide groove, to make left and right displacement at first connecting rod 9, place, left side at the doorframe inwall is provided with a slide block lockhole, be provided with guiding square bar 19 at lower baffle plate 1, guiding square bar 19 is connected with second connecting rod 10 by fixed axis, at the link of second connecting rod 10 back-moving spring 5 is arranged.When promoting handle 11 liftings, second connecting rod 10 moves downward lower baffle plate 1 by being fixed on the axle on the equipment doorframe and the guiding square bar 19 that is installed on the lower baffle plate 1, overhead gage 2 and lower baffle plate 1 are opened, after promoting handle release, overhead gage 2 and lower baffle plate 1 homing under the effect of back-moving spring 5.Be provided with the rectangular bar 7 of a belt length circle stroke slotted eye at the place, right side of doorframe inwall, also be connected with a knee 8 on overhead gage 2, the other end of knee 8 places in the oval stroke slotted eye of rectangular bar 7, and rectangular bar 7 upper ends are connected with isolation circuit breakers location jam plate 6.The isolation circuit breakers location jam plate 6 that rectangular bar 7 is connected with its upper end links to each other, when promoting handle 11 liftings, by knee 8 the isolation circuit breakers location jam plate 6 that rectangular bar 7 is connected with its upper end is together promoted, this moment, isolation circuit breakers was located the center positioning hole of jam plate 6, depart from the location lock shaft of isolation circuit breakers, isolation circuit breakers can not be locked.After lifting handle 11 resets, the corresponding center positioning hole that also passes isolation circuit breakers location jam plate 6 of the location lock shaft of isolation circuit breakers, this moment, isolation circuit breakers was locked.Be provided with two opening guide grooves at place, the left side of high voltage switchgear cable vault frame side facade, the baffle plate 3 that can slide up and down along groove is installed in two opening guide grooves, below baffle plate 3, be provided with back-moving spring.In the specific design structure, earthed switch allows under the prerequisite of operation in cabinet, the slide block 4 that is connected with first connecting rod 9 is made left and right displacement in horizontal guide groove, when promoting handle 11 liftings, slide block 4 doorframe that moves out of, at this moment, earthed switch is in the state that closes that closes, if high-tension cable chamber cabinet door is opened, the cabinet goalkeeper can't close because exposing of slide block 4 is spacing so, if earthed switch was shown in an open position the cabinet door and cut out this moment, slide block 4 can move in the lockhole of the slide block 4 that the cabinet doorjamb is provided with so, and cable vault's door can't be opened; Stop in interlock system under the prerequisite of charged branch or splice grafting ground switch, when after high-tension cable chamber cabinet door is closed baffle plate 3 being depressed, slide block 4 doorframe that moves out of, after high-tension cable chamber cabinet door was opened, baffle plate 3 resetted, and slide block 4 skids off the guide groove outlet.Be provided with jam plate 16 (this jam plate 16 is that a side is to face directly and opposite side is the metal plate of zigzag face) at cabinet inner high voltage earthed switch, (bent plate 12 is L type shape also to be provided with the bent plate 12 of a band open slot on the cabinet door inwall of high-tension cable chamber, the centre is provided with open slot, in bent plate 12 riveted joints a long shaft rod and a stub shaft are arranged), be provided with a slide block 13 under the open slot, when equipment inner high voltage earthed switch during at open position, jam plate 16 drops in the open slot that is fixedly installed in bent plate 12 on the cabinet door inwall of high-tension cable chamber, and high-tension cable chamber cabinet door is locked because of stopping of jam plate 16 and slide block 13.

Concrete working method and the characteristics of device described in the utility model are as described below.

One, isolation circuit breakers chamber door 17 is the lever gear doors by the 18 rotary manipulation opening and closing of key handle, does not establish the divide-shut brake button of circuit breaker on the door, prevents the mistake branch, closes circuit breaker.

Two, when circuit breaker is in closing position, the operation of the manual/electric of rotary separation switch is prevented from, and the manual and electronic rotary manipulation automatic clutch of isolating switch guarantees to prevent the on-load branch, close isolating switch fully simultaneously.

Three, be provided with lower baffle plate 1 and the overhead gage 2 of high voltage ground switch handle hole on the high voltage switchgear cable vault doorframe inwall in the guide chute of the left and right sides, the two can make rectilinear motion up and down in guide chute under 11 effects of lifting handle.Connecting rod 10 utilizes the axle that is fixed on the equipment doorframe and the guiding square bar that is installed on the lower baffle plate 1 that lower baffle plate 1 is moved downward, and by this action overhead gage 2 and lower baffle plate 1 is opened.At this moment, under isolation circuit breakers was in gate-dividing state, six square shafts can be by the high voltage ground switch in the high voltage ground switch handle hole operation cabinet that arranges on the equipment doorframe in the operating handle of high voltage ground switch.The isolation circuit breakers location jam plate 6 that rectangular bar 7 is connected with its upper end can together promote by knee 8 in promoting handle 11 lifting process, at this moment, under earthed switch is locked in "on" position, the center positioning hole of isolation circuit breakers location jam plate 6, location lock shaft from isolation circuit breakers, isolation circuit breakers is disengaged locking, so can't operate the divide-shut brake of isolation circuit breakers.After earthed switch closed a floodgate, the maintenance turnover panel of the earthed switch that the bottom face of rectangular bar 7 has been closed a floodgate remained on this position, has reliably realized preventing from being with ground connection disconnecting link (earth connection) to close circuit breaker (isolating switch).

Four, circuit breaker is only when earthed switch is in the separating brake position, and the maintenance turnover panel of installing on the earthed switch breaks away from the bottom face of rectangular bar 7 just can be locked.After locking is finished, the location lock shaft correspondence of isolation circuit breakers is also passed the center positioning hole that isolation circuit breakers is located jam plate 6, this moment, isolation circuit breakers was locked, the isolation circuit breakers location jam plate 6 that rectangular bar 7 is connected with its upper end can not move up and down, and make that promoting handle 11 can not open lower baffle plate 1 and overhead gage 2, small semicircle opening on the lower baffle plate 1 and the small semicircle opening on the overhead gage 2, form the circular hole of the high voltage ground switch handle hole diameter that a diameter is provided with less than the equipment doorframe in the junction, this moment, interior six square shafts of operating handle of high voltage ground switch were prevented from operating the interior high voltage ground switch of cabinet, thereby had realized preventing the function of charged splice grafting ground switch.

Five, after high-tension cable chamber cabinet door is closed, door can be depressed baffle plate 3, discharge the outlet of the horizontal guide groove that moves for slide block 4 within it, after this when promoting handle 11 liftings, the slide block that is connected with first connecting rod 94 is just movable to go out doorframe, in the slide block lockhole that is provided with to the cabinet doorjamb, and stop cable vault's door to open.Operational grounding switch separating brake, the jam plate 16 that is installed on the cabinet inner high voltage earthed switch is dropped on be fixedly installed in the open slot of bent plate 12 on the cabinet door inwall of high-tension cable chamber, be provided with a slide block 13 under the open slot, high-tension cable chamber cabinet door is locked because of stopping of jam plate 16 and slide block 13, and the requirement that prevents mistakenly entering charged chamber of " transmission operation " program is finished in this action.And when " interruption maintenance " program, high-tension cable chamber door is opened, the back-moving spring that baffle plate 3 is provided with resets baffle plate 3, the horizontal guide groove outlet of shutoff slide block 4, and make that promoting handle 11 can't mention, overhead gage 2 and lower baffle plate 1 can not be opened, make earthed switch be in closing position all the time and be prevented from the operation, and isolation circuit breakers also is disengaged locking at this moment, be prevented from branch, closing operation only to shift out outside the cabinet, the requirement that prevents mistakenly entering charged chamber of " interruption maintenance " program is finished in this action.When high-tension cable chamber door is locked, in case urgent situation occurs, can allow high-tension cable chamber door is opened by instruction, its process is earlier the emergency release handle hole baffle plate on the door of high-tension cable chamber to be opened according to instruction, in this hole, stretch into sliding set in the length of bent plate 12 with special-purpose solution lock tool then, slide block 13 on the minor axis, slide block 13 is dialled from minor axis, under the effect of spring 15, slide block 13 can be pulled on one side, the open slot of bent plate 12 is thoroughly opened, and under the situation of other operation interlocking programs, cable vault's door can be opened like this, behind the end of operation, can also recover efficiently voluntarily.

Claims (7)

1. a function composite high-pressure metal sealing switch equipment is controlled interlock, it comprises one and overlaps the interlock that is installed on the function composite high voltage switchgear cable vault doorframe inwall, it is characterized in that: the left and right sides at high voltage switchgear cable vault doorframe inwall is provided with vertical guide groove, be provided with horizontal guide groove in the left side of doorframe inwall, in two vertical guide grooves, be respectively equipped with band high voltage ground switch handle hole and can making straight-line lower baffle plate (1) and overhead gage (2) up and down in the guide groove separately, be equipped with on the overhead gage (2) and promote handle (11) and two connecting rods (9,10), be connected with the slide block (4) that in horizontal guide groove, to make left and right displacement at first connecting rod (9), place, left side at the doorframe inwall is provided with a slide block lockhole, be provided with guiding square bar (19) at lower baffle plate (1), guiding square bar (19) is connected with second connecting rod (10) by fixed axis, at the link of second connecting rod (10) back-moving spring (5) is arranged; Be provided with the rectangular bar (7) of a belt length circle stroke slotted eye at the place, right side of doorframe inwall, on overhead gage (2), also be connected with a knee (8), the other end of knee (8) places in the oval stroke slotted eye of rectangular bar (7), and rectangular bar (7) upper end is connected with isolation circuit breakers location jam plate (6); Be provided with two opening guide grooves at place, the left side of high voltage switchgear cable vault frame side facade, the baffle plate (3) that can slide up and down along groove is installed in two opening guide grooves, be provided with back-moving spring in the below of baffle plate (3).

2. function composite high-pressure metal sealing switch equipment according to claim 1 is controlled interlock, it is characterized in that: on lower baffle plate (1) and overhead gage (2), respectively have one can be involutory in opposite directions the small semicircle opening, two small semicircle openings form a diameter less than the circular hole of high voltage ground switch handle hole diameter set on the equipment doorframe in conjunction with the back, the interior isolation circuit breakers of cabinet this moment is in to close and closes the position, and six square shafts are plugged in the operating handle of high voltage ground switch.

3. function composite high-pressure metal sealing switch equipment according to claim 1 is controlled interlock, it is characterized in that: when promoting handle (11) lifting, second connecting rod (10) moves downward lower baffle plate (1) by being fixed on the axle on the equipment doorframe and the guiding square bar that is installed on the lower baffle plate (1), overhead gage (2) and lower baffle plate (1) are opened, after promoting handle (11) release, overhead gage (2) and lower baffle plate (1) homing under the effect of back-moving spring (5).

4. function composite high-pressure metal sealing switch equipment according to claim 1 is controlled interlock, it is characterized in that: earthed switch allows under the prerequisite of operation in cabinet, the slide block (4) that is connected with first connecting rod (9) is made left and right displacement in horizontal guide groove, when promoting handle (11) lifting, slide block (4) doorframe that moves out of, at this moment, earthed switch is in the state that closes that closes, if high-tension cable chamber cabinet door is opened, the cabinet goalkeeper is because of spacing can't closing of exposing of slide block (4) so, if earthed switch was shown in an open position the cabinet door and cut out this moment, slide block (4) can move in the lockhole of the slide block (4) that the cabinet doorjamb is provided with so, and cable vault's door can't be opened; Stop in interlock system under the prerequisite of charged branch or splice grafting ground switch, after high-tension cable chamber cabinet door is closed with baffle plate (3) when depressing, slide block (4) doorframe that moves out of, after high-tension cable chamber cabinet door was opened, baffle plate (3) resetted, slide block (4) skids off the guide groove outlet.

5. function composite high-pressure metal sealing switch equipment according to claim 1 is controlled interlock, it is characterized in that: rectangular bar (7) links to each other with the isolation circuit breakers location jam plate (6) that its upper end is connected, when promoting handle (11) lifting, by knee (8) rectangular bar (7) is together promoted with the isolation circuit breakers location jam plate (6) that its upper end is connected, at this moment, the center positioning hole of isolation circuit breakers location jam plate (6), depart from the location lock shaft of isolation circuit breakers, isolation circuit breakers can not be locked; After lifting handle (11) resets, the corresponding center positioning hole that also passes isolation circuit breakers location jam plate (6) of the location lock shaft of isolation circuit breakers, this moment, isolation circuit breakers was locked.

6. function composite high-pressure metal sealing switch equipment according to claim 1 is controlled interlock, it is characterized in that: be provided with jam plate (16) at cabinet inner high voltage earthed switch, on the cabinet door inwall of high-tension cable chamber, also be provided with the bent plate (12) of a band open slot, be provided with a slide block (13) under the open slot, when equipment inner high voltage earthed switch during at open position, jam plate (16) drops in the open slot that is fixedly installed in bent plate (12) on the cabinet door inwall of high-tension cable chamber, and high-tension cable chamber cabinet door is locked because of stopping of jam plate (16) and slide block (13).

7. function composite high-pressure metal sealing switch equipment according to claim 6 is controlled interlock, it is characterized in that, bent plate (12) is L type shape, the centre is provided with open slot, in bent plate (12) riveted joint a long shaft rod and a stub shaft, jam plate (16) being arranged is that a side is to face directly and opposite side is the metal plate of zigzag face.

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