CN109148206B - A kind of dual operation hole tri-station isolating switch mechanism and its interlock - Google Patents

Abstract

Dual operation hole tri-station isolating switch mechanism disclosed by the invention, including tri-station isolating switch, the tri-station isolating switch carries out separating brake, combined floodgate, landing operation by chain-drive mechanism driving, the chain-drive mechanism is driven by a drive sprocket, it is characterized in that, the drive sprocket closes point operating shaft by worm shaft, gear drive and isolation and ground connection is closed a point operating shaft and driven, and is divided to operating shaft to set up separately in two different handle holes wherein isolation conjunction is divided to operating shaft to close with ground connection.The invention also discloses the interlocks with above-mentioned dual operation hole tri-station isolating switch mechanism.The single operation hole mode of existing tri-station isolating switch is changed to dual operation hole mode by the present invention, and by reliable interlock, is realized the mutual locking between dual operation hole, effectively raised the anti-error performance of operating mechanism, increase the reliability of manual operation.

Description

A kind of dual operation hole tri-station isolating switch mechanism and its interlock

Technical field

The present invention relates to electrical equipment technical fields, in particular to a kind of to be used in gas insulation switch cabinet for realizing gas Tri-station isolating switch combined floodgate, separating brake and the dual operation hole tri-station isolating switch mechanism of landing operation and its interlocking dress in case It sets.

Background technique

Gas-insulated metal enclosed switchgear with its high reliability, it is non-maintaining, miniaturization, feature not affected by environment, closely Widely received by user over year, actual application has been obtained in numerous construction projects.Wherein three stations are kept apart Pass is the important composition component of gas insulation switch cabinet, is evolved after being combined by former disconnecting switch and earthing switch function, is risen To connection, isolation, the effect for being grounded primary circuit.Tri-station isolating switch is driven by operating mechanism by transmission parts, is passed through Manual operation or motor driven, realize the combined floodgate, separating brake, grounding function of tri-station isolating switch.

Tri-station isolating switch is made of 5 combined floodgate touch base, intermediate touch base, ground contact seat, moving contact and screw rod parts, is grasped The function of making mechanism is to drive screw rod rotation, and moving contact can be as the realization clockwise or counterclockwise of screw rod be toward combined floodgate touch base Or the linear motion toward ground contact seat, achieve the purpose that primary equipment combined floodgate, separating brake and ground connection.

The isolator operating mechanism under which is single hole operating mechanism at present, i.e., to the conjunction of primary equipment bus point Operation and ground connection operation be all completed in a handle hole of operating mechanism, that is, tri-station isolating switch close point operation and Ground connection operation is that differentiation is not isolated in the manual operation of single hole operating mechanism, and this operation mode has greater risk generation Following two is without operation:

(1) area's operation is got over

The operation of power equipment has stringent operating instruction, the conjunction point operation of disconnecting switch and the conjunction of earthing switch point behaviour Work is that have different programs, but due to isolated operation when single hole operates and be grounded operation all in an operating position, Wu Fashi Locking ground connection operation while present disconnecting switch operation, so there is biggish possible production when disconnecting switch separating brake is manually operated Raw maloperation, that is, cross to keep apart and close subregion and continue operation to the region for closing tap ground.

(2) with missing splice grafting

Isolated operation and ground connection operation are all in an operating position when due to single hole operation, which previous position movement of institute is only It is related with the rotation direction of operation, it is inserted into handle when operator is in disconnecting switch open position, because without in operating function It distinguishes, therefore there are larger possibilities not to operate in accordance with the instructions by operator, generates maloperation, such as needs disconnecting switch combined floodgate to lack and accidentally closes Ground connection, causes serious consequence.

Summary of the invention

The first technical problem to be solved by the present invention is to close point operation and ground connection for existing tri-station isolating switch Operate in the manual operation of single hole operating mechanism is not to be isolated to distinguish the existing above problem and provide a kind of dual operation Hole tri-station isolating switch mechanism.

The first technical problem to be solved by the present invention is to close point operation and ground connection for existing tri-station isolating switch Operate in the manual operation of single hole operating mechanism is not to be isolated to distinguish the existing above problem and provide a kind of with upper State the interlock of dual operation hole tri-station isolating switch mechanism.

As the dual operation hole tri-station isolating switch mechanism of first aspect present invention, including tri-station isolating switch, institute It states tri-station isolating switch and separating brake, combined floodgate, landing operation is carried out by chain-drive mechanism driving, the chain-drive mechanism passes through One drive sprocket driving, which is characterized in that the drive sprocket is closed by worm shaft, gear drive and isolation divides operating shaft A point operating shaft is closed with ground connection to drive, and is divided to operating shaft to set up separately in two different behaviour wherein isolation conjunction is divided to operating shaft to close with ground connection Make in hole.

In a preferred embodiment of the invention, the gear drive includes one and the fixed company of the worm shaft It connects and drives the driven gear of the worm shaft, be fixedly connected and with the conjunction point operating shaft of being isolated by isolation conjunction point It operates shaft-driven first driving gear and closes a point operating shaft with the ground connection and be fixedly connected and by ground connection conjunction point operating shaft Second driving gear of driving, first driving gear, the second driving gear are meshed with the driven gear.

As the interlock with above-mentioned dual operation hole tri-station isolating switch mechanism of second aspect of the present invention, including One by the shaft-driven worm gear of the worm screw, by the synchronously driven ground connection rotating-table apparatus of the worm gear shaft in the worm gear and isolation turntable Device is interlocked by the synchronously driven isolation interlocking turntable of the worm gear shaft in the worm gear and ground connection interlocking turntable, by the isolation The isolation limit interlock of turntable driving is filled by ground connection limit interlock, the gate interlock of the ground connection interlocking turntable driving It sets, drive the isolation to close point isolation division operation handle of operating shaft rotation and the ground connection is driven to close point operating shaft rotation It is grounded division operation handle, position slice is provided on the ground connection rotating-table apparatus and isolation rotating-table apparatus and locking is cut Piece, the ground connection rotating-table apparatus and the position slice being isolated on rotating-table apparatus trigger corresponding microswitch, respectively output ground connection The position signal of the position signal of rotating-table apparatus and isolation rotating-table apparatus, locking slice covering on the isolation rotating-table apparatus every Clutch lock is grounded the locking slice covering isolation contact of earth on rotating-table apparatus to separating brake range, realizes isolation to separating brake range The mutual electric blocking in section and ground connection section；When the isolation interlocking turntable goes to isolation splitting or integrating position, the isolation is driven Limit interlock triggering isolation mechanical position limitation signal to the door interlock and limit isolation division operation handle continue turn It is dynamic；When ground connection interlocking turntable goes to earthing splitting or integrating position, the ground connection limit interlock is driven to trigger ground connection machine Tool limit signal to the door interlock and limit ground connection division operation handle continue to rotate.

In a preferred embodiment of the invention, the door interlock includes a panel and installs on the panel Isolated operation door interlock and ground connection operation door interlock, isolation is provided on the panel and closes point operation axis hole and connects Ground closes a point operation axis hole, and the isolation conjunction divides operating shaft to close a point operation axis hole across the isolation, and the ground connection, which is closed, divides operating shaft A point operation axis hole is closed across the ground connection；

The isolated operation door interlock includes fixed isolated operation door inner splint on the panel, sliding configuration Isolated operation door and isolated operation door U-shaped plate on the isolated operation door inner splint, the isolated operation door with it is described Isolated operation door reset spring is connected between isolated operation door inner splint, the isolated operation door closes a point operation to the isolation Axis hole is opened and closed, when the isolated operation door is not turned on, the isolated operation door U-shaped plate by it is described every From operating threshold system cannot downward free movement, the isolated operation door opening after, the isolated operation door U-shaped plate is by institute It states isolation limit interlock driving and moves up and down, limited whether to the rotation that division operation handle is isolated；

The ground connection operation door interlock includes fixed ground connection operation door inner splint, sliding configuration on the panel Ground connection operation door and ground connection operation door U-shaped plate on the ground connection operation door inner splint, the ground connection operate door with it is described Ground connection operation door reset spring is connected between ground connection operation door inner splint, the ground connection operation door closes a point operation to the ground connection Axis hole is opened and closed, and when ground connection operation door is not turned on, the ground connection operation door U-shaped plate is connect by described Ground operating threshold system cannot downward free movement, after ground connection operation door is opened, the ground connection operates door U-shaped plate by institute It states ground connection limit interlock driving and moves up and down, limited whether to the rotation for being grounded division operation handle.

In a preferred embodiment of the invention, turntable is interlocked along the isolation in the disk of the isolation interlocking turntable Circumferential setting there are two isolation interlocking backing pin, the isolation interlocking turntable outer peripheral edge by isolation interlock first diameter segmental arc and every From interlocking second diameter segmental arc composition, the diameter of the isolation interlocking first diameter segmental arc is greater than the isolation and interlocks second diameter The diameter of segmental arc, is provided with an isolation combined floodgate notch in isolation interlocking first diameter segmental arc, and two isolation interlock backing pin In first isolation linkage block pins position in the fan-shaped surface where the isolation interlocking first diameter segmental arc, two isolation interlock Second isolation linkage block pins position in backing pin is in the fan-shaped surface where the isolation interlocking second diameter segmental arc；

The isolation limit interlock includes the second interlocking of rotatable isolation the first interlock plate of interlocking and isolation interlocking Plate and axis are located at the isolation interlocking third interlock plate on the first interlock plate of the isolation interlocking, interlock first in the isolation Be fixed in the first end of jam plate one follow it is described isolation interlocking the first interlock plate movement isolation interlocking limit backing pin, it is described every It is inserted into the U-lag on the isolated operation door U-shaped plate from interlocking limit backing pin；The first interlock plate is interlocked in the isolation Second end on be provided with one to the curved isolation in isolation interlocking turntable direction interlocking L shape crotch, the isolation interlocks the The first end of two interlock plates is provided with isolation interlocking scrap (bridge), and the second end of the second interlock plate of the isolation interlocking is provided with an isolation Interlocking stops side by backing pin, and one end of the isolation interlocking third interlock plate is provided with isolation interlocking crotch；

In the disk of the ground connection interlocking turntable, along the circumferential setting of the ground connection interlocking turntable, there are two be grounded linkage block Pin, the ground connection interlocking turntable outer peripheral edge are made of ground connection interlocking first diameter segmental arc and ground connection interlocking second diameter segmental arc, institute The diameter for stating ground connection interlocking first diameter segmental arc is greater than the diameter of the ground connection interlocking second diameter segmental arc, interlocks in the ground connection A contact of earth notch is provided in first diameter segmental arc, two ground connection interlocking backing pins are respectively positioned on the ground connection interlocking first diameter In fan-shaped surface where segmental arc；Described two ground connection interlocking backing pins are staggered one with described two interlocking backing pins of being isolated in the circumferential Angle；

The ground connection limit interlock includes the second interlocking of rotatable ground connection the first interlock plate of interlocking and ground connection interlocking Plate and axis are located at the ground connection interlocking third interlock plate on the first interlock plate of the ground connection interlocking, interlock first in the ground connection A ground connection interlocking limit backing pin for following the ground connection interlocking the first interlock plate movement is fixed in the first end of jam plate, it is described to connect Ground interlocking limit backing pin is inserted into the U-lag on the ground connection operation door U-shaped plate；The first interlock plate is interlocked in the ground connection Second end on be provided with one to ground connection interlocking turntable direction curved ground connection interlocking L shape crotch, the ground connection interlocks the The first end of two interlock plates is provided with ground connection interlocking scrap (bridge), and the second end of the second interlock plate of the ground connection interlocking is provided with a ground connection Interlocking stops side by backing pin, and one end of the ground connection interlocking third interlock plate is provided with ground connection interlocking crotch；

When tri-station isolating switch is in open position, isolated operation door is opened, by isolation division operation handle insertion Onto the isolation division operating shaft, at this point, second isolation interlocking backing pin on the isolation interlocking turntable is isolated with described Interlock isolation interlocking on the second interlock plate and side contact stopped by backing pin, the isolation the second interlock plate of interlocking obtain second every Blocking from interlocking backing pin is not able to rotate, so that the isolation interlocking crotch on the isolation interlocking third interlock plate reliably hooks On isolation interlocking scrap (bridge) on the second interlock plate of the isolation interlocking, the isolation the first interlock plate of interlocking is failure to actuate, it is described every It is acted from the isolation interlocking limit backing pin on the first interlock plate of interlocking without the isolated operation door U-shaped plate is moved；

When tri-station isolating switch is moved from separating brake toward combined floodgate direction, at this point, second on the isolation interlocking turntable A isolation interlocking backing pin can follow the isolation interlocking turntable to rotate an angle, be detached from and the second interlock plate of interlocking is isolated with described On isolation interlocking stopped the contact on side by backing pin, the isolation, which interlocks the second interlock plate and cannot get second isolation, interlocks backing pin Blocking stress rotate so that the isolation interlocking scrap (bridge) on the second interlock plate of the isolation interlocking is detached from and with described connection is isolated The contact for locking the isolation interlocking crotch on third interlock plate, forms tripping；The isolation interlocks the rotation of the first interlock plate after tripping, So that the isolation interlocking L shape crotch on the first interlock plate of the isolation interlocking is resisted against the isolation connection on the isolation interlocking turntable It locks in first diameter segmental arc, by the isolation interlocking first diameter segmental arc on the isolation interlocking turntable against the isolation Interlocking the first interlock plate will not continue to act, and the isolation interlocking limit backing pin on the first interlock plate of the isolation interlocking is without dynamic The isolated operation door U-shaped plate movement；

When tri-station isolating switch movement is to closing position, at this point, the isolation on the first interlock plate of the isolation interlocking Interlocking L shape crotch drops into the isolation combined floodgate notch on the isolation interlocking turntable, and it is dynamic that the isolation interlocks the first interlock plate Make, drives the isolation interlocking limit backing pin downward actuation on the first interlock plate of the isolation interlocking, the isolation interlocking moved downward Limit backing pin drives isolated operation door U-shaped plate to move downward, and is directly inserted into the groove of isolation division operation handle, to institute The rotation for stating isolation division operation handle is limited, and extracts isolation division operation handle at this time, the isolated operation door is in institute It states and is resetted under isolated operation door action of reset spring, isolated operation door U-shaped is driven in the isolated operation door reseting procedure Plate moves upwards, and the isolated operation door U-shaped plate drives isolation the first interlock plate of interlocking by isolation interlocking limit backing pin It is resetted together with isolation interlocking third interlock plate；

When tri-station isolating switch movement is to open position, the isolation on the first interlock plate of the isolation interlocking interlocks L Shape crotch drops into the isolation interlocking second diameter segmental arc on the isolation interlocking turntable, and the isolation interlocks the first interlock plate Movement drives the isolation interlocking limit backing pin downward actuation on the first interlock plate of the isolation interlocking, the isolation connection moved downward Lock limit backing pin drives isolated operation door U-shaped plate to move downward, and is directly inserted into the groove of isolation division operation handle, shape At the manual operation limit to isolation division operation handle afterwards in place；In tri-station isolating switch from closing operation to sub-switching operation In the process, the isolation interlocking L shape crotch on the first interlock plate of the isolation interlocking is still fallen on the isolation interlocking turntable Isolation interlocking second diameter segmental arc in, it is described isolation interlocking the first interlock plate on isolation interlocking L shape crotch cannot get it is described Isolation interlocking first diameter segmental arc on isolation interlocking turntable relies on, so that the isolation connection on the first interlock plate of the isolation interlocking Always downward actuation, the isolation interlocking limit backing pin moved downward always drive isolated operation door U-shaped plate to begin to lock limit backing pin Move downward eventually, though open isolated operation door, also can not operation isolation operating shaft, effectively prevent maloperation；

In above-mentioned isolation division operating shaft operating process, since ground connection operation door is not turned on, the ground connection behaviour Make door U-shaped plate by the ground connection operating threshold system cannot downward free movement, ground connection operation door U-shaped plate passes through institute It states ground connection interlocking limit backing pin and limits the ground connection interlocking the first interlock plate movement, so that on ground connection interlocking third interlock plate Ground connection interlocking crotch reliably hook always it is described ground connection interlocking the second interlock plate on ground connection interlocking scrap (bridge) on；

When tri-station isolating switch is needed from ground connection operation, ground connection operation door is opened, ground connection division operation handle is inserted Enter in the ground connection division operating shaft and rotated from open position toward ground connection direction, at this point, the on the ground connection interlocking turntable One ground connection interlocking backing pin is detached from stops side to contact with the ground connection interlocking on the second interlock plate of the ground connection interlocking by backing pin, described The blocking stress that ground connection the second interlock plate of interlocking cannot get first ground connection interlocking backing pin rotates, so that the ground connection interlocks Ground connection interlocking scrap (bridge) on second interlock plate is detached from the contact that the ground connection interlocking crotch on third interlock plate is interlocked with the ground connection, Form tripping；The ground connection interlocks the first interlock plate and rotates after tripping, and the ground connection interlocks on the first interlock plate after rotation Ground connection interlocking L shape crotch be resisted against it is described ground connection interlocking turntable on ground connection interlocking first diameter segmental arc on, connect by described Ground interlock the ground connection interlocking first diameter segmental arc on turntable against, the ground connection the first interlock plate of interlocking will not continue to act, Ground connection interlocking limit backing pin on the first interlock plate of the ground connection interlocking operates the movement of door U-shaped plate without the ground connection is moved, Cause the limit to the ground connection division operation handle；

When tri-station isolating switch movement is to earthing position, at this point, the ground connection on the first interlock plate of the ground connection interlocking Interlocking L shape crotch drops into the contact of earth notch on the ground connection interlocking turntable, and it is dynamic that the ground connection interlocks the first interlock plate Make, drives the ground connection interlocking limit backing pin downward actuation on the first interlock plate of the ground connection interlocking, the ground connection interlocking moved downward Limit backing pin drives ground connection operation door U-shaped plate to move downward, and is directly inserted into the groove of ground connection division operation handle, to institute The rotation for stating ground connection division operation handle is limited, and extracts ground connection division operation handle at this time, the ground connection operation door is in institute It states and is resetted under ground connection operation door action of reset spring, ground connection operation door U-shaped is driven in the ground connection operation door reseting procedure Plate moves upwards, and the ground connection operation door U-shaped plate drives ground connection the first interlock plate of interlocking by ground connection interlocking limit backing pin It is resetted together with ground connection interlocking third interlock plate.

Due to use technical solution as above, the present invention have the beneficial effect that compared with prior art the present invention by every Clutch point operating shaft and ground connection close the operation that point operating shaft distinguishes different function, and input action is passed to three works by transmission device Position disconnecting switch in screw rod while, further through worm and gear by screw rod rotation generate disconnecting switch linear motion be synchronized to The rotation of worm gear shaft side, and drive the isolation rotating-table apparatus, ground connection rotating-table apparatus, isolation interlocking of worm gear two sides to turn by worm gear shaft Disk, ground connection interlocking turntable, isolation limit interlock, ground connection limit interlock movement, isolation rotating-table apparatus and ground connection turntable Device not only realizes the function of position signal output, while also meeting isolation conjunction point function and being grounded and closing point function electrical On the requirement that is mutually latched, isolation interlocking turntable and ground connection interlocking turntable, which pass through, triggers isolation in combined floodgate, separating brake, earthing position Interlock, ground connection limit interlock are limited, and isolation behaviour is driven by isolation limit interlock, ground connection limit interlock Make door interlock, ground connection operation door interlock locking isolation conjunction point operation handle and ground connection and close point operation handle, realizes three Subregion is closed in station disconnecting switch isolation and ground connection closes subregional mutual part mechanical latching.

The present invention is closed by isolation divides handle hole and ground connection to close the mode of operation realization different function operation pair for dividing handle hole Different handle holes is answered, relative to single hole operation mode, greatly facilitates identification and reason that operator operates functions of the equipments Solution, while maloperation flexibly can be thought to specific function handle hole installation padlock or procedure lock, effective means.In addition for The tri-station isolating switch of diplopore operation of the invention, has been specifically designed the interlock for diplopore operation mode, has passed through connection Isolation is closed branch's journey and ground connection is closed branch's journey and effectively distinguished by locking device, and formed it is mutual electrically and mechanical latching, Namely isolation close point operating shaft institute operable region be only three-station isolation division region, ground connection conjunction divides operating shaft Operable region be only that the ground connection of three-station closes subregion, occur to get over area's operation when effectivelying prevent manual operation.

The anti-misoperation function of the perfect diplopore operation of the present invention, to line security provides protection, and is effectively ensured The personal safety of operator.

Detailed description of the invention

Fig. 1 is status diagram when tri-station isolating switch is in separating brake.

Fig. 2 is status diagram when tri-station isolating switch is in combined floodgate.

Fig. 3 is status diagram when tri-station isolating switch is in ground connection.

Fig. 4 is the knot that the present invention has running part in the interlock of above-mentioned dual operation hole tri-station isolating switch mechanism Structure schematic diagram.

Fig. 5 is point that the present invention has running part in the interlock of above-mentioned dual operation hole tri-station isolating switch mechanism Solve schematic diagram.

Fig. 6 is that the present invention has isolation limit interlocking in the interlock of above-mentioned dual operation hole tri-station isolating switch mechanism The scheme of installation of device, ground connection limit interlock.

Fig. 7 is the present invention with the door interlock in the interlock of above-mentioned dual operation hole tri-station isolating switch mechanism Structural schematic diagram.

Fig. 8 is that there is the present invention gate interlock in the interlock of above-mentioned dual operation hole tri-station isolating switch mechanism to fill The assembling schematic diagram set, be isolated between limit interlock, ground connection limit interlock.

Fig. 9 is enlarged diagram at the I of Fig. 8.

Figure 10 is that there is the present invention isolation in the interlock of above-mentioned dual operation hole tri-station isolating switch mechanism to limit Interlock, ground connection limit interlocking portion structural schematic diagram.

Figure 11 is that there is the present invention isolation in the interlock of above-mentioned dual operation hole tri-station isolating switch mechanism to limit Interlock, ground connection limit interlock are in the status diagram closed when dividing middle position in tri-station isolating switch.

Figure 12 is that there is the present invention isolation in the interlock of above-mentioned dual operation hole tri-station isolating switch mechanism to limit The status diagram of interlock, ground connection limit interlock when tri-station isolating switch is in closing position.

Figure 13 is that there is the present invention isolation in the interlock of above-mentioned dual operation hole tri-station isolating switch mechanism to limit The status diagram of interlock, ground connection limit interlock when tri-station isolating switch is in open position.

Figure 14 is that there is the present invention isolation in the interlock of above-mentioned dual operation hole tri-station isolating switch mechanism to limit The status diagram of interlock, ground connection limit interlock when tri-station isolating switch divides middle position with being in.

Figure 15 is that there is the present invention isolation in the interlock of above-mentioned dual operation hole tri-station isolating switch mechanism to limit The status diagram of interlock, ground connection limit interlock when tri-station isolating switch is in earthing position.

Specific embodiment

Relative to the tri-station isolating switch mechanism of single hole operation, device through the invention can not only be greatly improved The anti-operating characteristics of tri-station isolating switch improves switch reliability, and diplopore operation interface is more intuitive, more meets operator The use habit of member.

The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.

Referring to Fig. 1 to Fig. 3, tri-station isolating switch is installed in the closed air box, by three groups 1, three group of combined floodgate touch base 2, three groups of intermediate touch base, 3, three groups of moving contact ground contact seat, 4, three screw rods 7 and three groups of sprocket wheels 5, chain 6 form, every group of dynamic touching First 3 are equipped with connecting shaft 8 by a driving movement of screw rod 7, the head of every screw rod 7, and connecting shaft 8 is on the outside of gas tank, passes through The synchronous driving rotation of three groups of sprocket wheels 5, three groups of sprocket wheels 5 are driven by chain 6 and are rotated synchronously.

When screw rod 7 drives moving contact 3 to connect combined floodgate touch base 1 and intermediate touch base 2, tri-station isolating switch is in closing position It sets；When screw rod 7 drives moving contact 3 to connect ground contact seat 4 and intermediate touch base 2, tri-station isolating switch is in earthing position；When When the driving of screw rod 7 moving contact 3 is in intermediate touch base 2, tri-station isolating switch is in open position.

Tri-station isolating switch is driven to be completed by the transmission device of tri-station isolating switch mechanism.Referring to fig. 4 and Fig. 5, should The transmission device of tri-station isolating switch mechanism by isolation close point operating shaft 110, ground connection close divide operating shaft 120, worm shaft 130, Gear drive composition.

Gear drive includes two driving gears 140,150 and a driven gear 160, and isolation, which is closed, divides operating shaft 110, ground connection, which closes point operating shaft 120 and is each passed through the isolation on front supporting plate 210 and closes, divides an operation axis hole 211, ground connection to close point operating shaft Hole 212, isolation, which is closed, is divided to operating shaft 110, ground connection conjunction to be divided to the inner end of operating shaft 120 fixed with two driving gears 140,150 respectively Connection.

The rear and front end axis of worm shaft 130 is located on front supporting plate 210 and rear carrier plate 220, is fixed in the front end of worm shaft 130 There is driven gear 160, rear end is fixed with drive sprocket 170, and drive sprocket 170 passes through one in three groups of sprocket wheels 5 of chain-driving Sprocket wheel rotation.Driven gear 160 is engaged with two driving gears 140,150 simultaneously.

Left plate 230 and right side plate 240 are fixedly connected with front supporting plate 210 and rear carrier plate 220, in the centre of worm gear shaft 130 Appropriate location is fixed with a worm screw 131, and worm screw 131 engages with a worm gear 180, the left and right ends of the worm gear shaft 181 in worm gear 180 Axis is located on left plate 230 and right side plate 240.

The isolation rotating-table apparatus 310 for following worm gear shaft 181 to rotate is fixed in the left and right ends of worm gear shaft 181 and ground connection turns Disk device 320 is provided with position slice and locking slice on isolation rotating-table apparatus 310 and ground connection rotating-table apparatus 320.Isolation Position slice on rotating-table apparatus 310 and ground connection rotating-table apparatus 320 triggers corresponding microswitch, respectively output isolation turntable dress Set 310 position signal and ground connection rotating-table apparatus 320 position signal, be isolated rotating-table apparatus 310 on locking slice covering every Clutch lock is grounded locking slice covering isolation contact of earth on rotating-table apparatus 320 to separating brake range to separating brake range, realize every Mutual electric blocking from section and ground connection section.

When point operating shaft 110 is closed in isolation, ground connection is closed after dividing 120 input action of operating shaft, through two driving gears 140,150 With engaging for driven gear 160, movement is transferred to worm shaft 130, rotation is divided two lines road to transmit by worm shaft 130, and one Route is that worm shaft 130 is directly passed to sprocket wheel 5 in tri-station isolating switch by the drive sprocket 170 of rear end, drives three works Position disconnecting switch movement, another route are that worm shaft 170 passes through worm screw 171, worm gear 180 is transferred to worm gear shaft 181, pass through snail Wheel shaft 181 corresponds to the operating position of sightless tri-station isolating switch inside original gas tank in proportion to worm gear shaft 181 Different rotational angles.

When tri-station isolating switch is acted to combined floodgate, separating brake and is grounded in gas tank, isolation rotating-table apparatus 310 and ground connection turn Disk device 320 will also rotate to corresponding position, isolation rotating-table apparatus 310 and the position being grounded on rotating-table apparatus 320 with worm gear shaft 181 It sets slice and triggers corresponding microswitch, respectively the position signal of output isolation rotating-table apparatus 310 and ground connection rotating-table apparatus 320 Position signal, for automation, electrical control tri-station isolating switch mechanism provides the foundation.

Referring to Fig. 6 to Figure 10, the isolation connection for following worm gear shaft 181 to rotate is further fixed in the left and right ends of worm gear shaft 181 Turntable 410 and ground connection interlocking turntable 420 are locked, while being separately installed with isolation limit in the outside of left plate 230 and right side plate 240 Interlock 500 and ground connection limit interlock 600, the driving isolation interlocking turntable 410 of worm gear shaft 181 go to isolation splitting or integrating position When setting, isolation interlocking turntable 410 driving isolation limit interlock 500 triggering isolation mechanical position limitation signal to door interlock simultaneously Limitation isolation division operation handle continues to rotate；When worm gear shaft 181 drives ground connection interlocking turntable 420 to go to earthing splitting or integrating position When setting, ground connection interlocking turntable 420 driving ground connection limit interlock 600 triggering ground connection mechanical position limitation signal to door interlock simultaneously Limitation ground connection division operation handle continues to rotate.

Door interlock includes a panel 710 and the isolated operation door interlock 720 being mounted on panel 710 and ground connection Door interlock 730 is operated, isolation conjunction point operation axis hole 711 and a ground connection conjunction point operation axis hole 712 are provided on panel 710, every Clutch divides operating shaft 110 to pass through an isolation conjunction point operation axis hole 711, and ground connection, which is closed, divides operating shaft 120 to close a point operation axis hole across ground connection 712。

Isolated operation door interlock 720 includes the isolated operation door inner splint 721 being fixed on panel 710, slides and match Set isolated operation door 722 and isolated operation door U-shaped plate 723 on isolated operation door inner splint 721, isolated operation door 722 Isolated operation door reset spring 724 is connected between isolated operation door inner splint 721, the 722 pairs of isolation of isolated operation door, which are closed, to divide Operation axis hole 711 opened and closed, when isolated operation door 722 is not turned on, isolated operation door U-shaped plate 723 by Isolated operation door 722 limitation cannot downward free movement, isolated operation door 722 opening after, isolated operation door U-shaped plate 723 It is moved up and down by isolation limit interlock 500 driving, is limited whether to the rotation that division operation handle is isolated.

Ground connection operation door interlock 730 includes the ground connection operation door inner splint 731 being fixed on panel 710, slides and match Set ground connection operation door 732 and ground connection operation door U-shaped plate 733 on ground connection operation door inner splint 731, ground connection operation door 732 It is connected between ground connection operation door inner splint 731 and is grounded operation door reset spring 734, ground connection operation 732 pairs of ground connection of door, which are closed, divides Operation axis hole 712 opened and closed, ground connection operation door 732 be not turned on when, ground connection operation door U-shaped plate 733 by Ground connection operation door 732 limitation cannot downward free movement, ground connection operation door 732 open after, ground connection operation door U-shaped plate 733 It is moved up and down by ground connection limit interlock 600 driving, is limited whether to the rotation for being grounded division operation handle.

There are two isolation interlocking backing pins along the circumferential setting of isolation interlocking turntable 410 for the disk of isolation interlocking turntable 410 411,412, isolation interlocking 410 outer peripheral edge of turntable is by isolation interlocking first diameter segmental arc 413 and isolation interlocking second diameter segmental arc The diameter of 414 compositions, isolation interlocking first diameter segmental arc 413 is greater than the diameter of isolation interlocking second diameter segmental arc 414, is being isolated An isolation combined floodgate notch 415 is provided in interlocking first diameter segmental arc 413, two isolation interlock first in backing pins 411,412 A isolation interlocking backing pin 411 is located in the fan-shaped surface where isolation interlocks first diameter segmental arc 413, and two isolation interlock backing pin 411, second isolation interlocking backing pin 412 in 412 is located in the fan-shaped surface where isolation interlocking second diameter segmental arc 414.

Isolation limit interlock 500 includes that axis is located at the first interlock plate 510 of interlocking of the isolation on left plate 230 and isolation It interlocks the isolation that the second interlock plate 520 and axis are located on isolation the first interlock plate 510 of interlocking and interlocks third interlock plate 530, In Isolation interlocking the first interlock plate 510 first end on be fixed with one follow it is described isolation interlocking the first interlock plate 510 movement every Backing pin 511 is limited from interlocking, isolation interlocking limit backing pin 511 is inserted into the U-lag on isolated operation door U-shaped plate 723；In One is provided in the second end of isolation the first interlock plate 510 of interlocking to the curved isolation interlocking L shape in isolation interlocking 410 direction of turntable Crotch 512, the first end of isolation the second interlock plate 520 of interlocking are provided with isolation interlocking scrap (bridge) 521, isolation the second interlock plate of interlocking 520 second end is provided with isolation interlocking and stops side 522 by backing pin, and one end of isolation interlocking third interlock plate 530 is provided with One isolation interlocking crotch 531.

There are two ground connection interlocking backing pins along the circumferential setting of ground connection interlocking turntable 420 for the disk of ground connection interlocking turntable 420 421,422, ground connection interlocking 420 outer peripheral edge of turntable is by ground connection interlocking first diameter segmental arc 423 and ground connection interlocking second diameter segmental arc The diameter of 424 compositions, ground connection interlocking first diameter segmental arc 423 is greater than the diameter of ground connection interlocking second diameter segmental arc 424, is being grounded A contact of earth notch 425 is provided in interlocking first diameter segmental arc 423, two ground connection interlocking backing pins 421,422 are respectively positioned on and connect Ground interlocks in the fan-shaped surface at 423 place of first diameter segmental arc；Two ground connection interlocking backing pins 421,422 are isolated with two in the circumferential Interlocking backing pin 411,412 is staggered an angle.

Ground connection limit interlock 600 includes that axis is located at the first interlock plate 610 of interlocking of the ground connection on right side plate 240 and ground connection It interlocks the ground connection that the second interlock plate 620 and axis are located on ground connection the first interlock plate 610 of interlocking and interlocks third interlock plate 630, In A ground connection connection for following ground connection interlocking the first interlock plate 610 movement is fixed in the first end of ground connection the first interlock plate 610 of interlocking Lock limit backing pin 611, ground connection interlocking limit backing pin 611 are inserted into the U-lag on ground connection operation door U-shaped plate 733；It is being grounded It interlocks and is provided with one in the second end of the first interlock plate 610 to the curved ground connection interlocking L shape crotch in ground connection interlocking 420 direction of turntable 612, the first end of ground connection the second interlock plate 620 of interlocking is provided with ground connection interlocking scrap (bridge) 621, ground connection the second interlock plate 620 of interlocking Second end be provided with a ground connection interlocking side 622 stopped by backing pin, one end of ground connection interlocking third interlock plate 630 is provided with one and connects Ground interlocks crotch 631.

When tri-station isolating switch is in open position, isolated operation door 722 is opened, division operation handle will be isolated 110a be inserted into isolation division operating shaft 110 on, at this point, isolation interlocking turntable 410 on second isolation interlocking backing pin 412 and Isolation interlocking on isolation the second interlock plate 520 of interlocking stops side 522 to contact by backing pin, isolation the second interlock plate 520 of interlocking Blocking to second isolation interlocking backing pin 412 is not able to rotate, so that the isolation interlocking on isolation interlocking third interlock plate 530 is curved Hook 531 reliably hooks on the isolation interlocking scrap (bridge) 521 on isolation the second interlock plate 520 of interlocking, isolation the first interlock plate of interlocking 510 are failure to actuate, and the isolation interlocking limit backing pin 511 on isolation the first interlock plate 510 of interlocking is inserted without dynamic isolated operation door U-shaped Plate 723 acts；

When tri-station isolating switch is moved from separating brake toward combined floodgate direction, at this point, second on isolation interlocking turntable 410 Isolation interlocking backing pin 412 can follow isolation interlocking turntable 410 to rotate an angle, be detached from and the second interlock plate 520 of interlocking is isolated On isolation interlocking by backing pin stop side 522 contact, isolation interlocking the second interlock plate 520 cannot get second isolation linkage block The blocking stress of pin 412 rotates so that isolation interlocking the second interlock plate 520 on isolation interlocking scrap (bridge) 521 be detached from every Contact from the isolation interlocking crotch 531 on interlocking third interlock plate 530, forms tripping；The first interlocking of isolation interlocking after tripping Plate 510 rotates, so that the isolation interlocking L shape crotch 512 on isolation the first interlock plate 510 of interlocking is resisted against isolation interlocking turntable In isolation interlocking first diameter segmental arc 413 on 410, first diameter segmental arc is interlocked by the isolation on isolation interlocking turntable 410 413 against, isolation interlocking the first interlock plate 510 will not continue to act, isolation interlocking the first interlock plate 510 on isolation interlocking Limit backing pin 511 is acted without dynamic isolated operation door U-shaped plate 723.

When tri-station isolating switch movement is to closing position, at this point, the isolation connection on isolation the first interlock plate 510 of interlocking Lock L shape crotch 512 drops into the isolation combined floodgate notch 415 on isolation interlocking turntable 410, isolation the first interlock plate 510 of interlocking Movement drives isolation interlocking limit 511 downward actuation of backing pin on isolation the first interlock plate 510 of interlocking, the isolation moved downward Interlocking limit backing pin 511 drives isolated operation door U-shaped plate 723 to move downward, and is directly inserted into isolation division operation handle In the groove 111a of 110a, the rotation of isolation division operation handle 110a is limited, extracts isolation division manipulator at this time Handle 110a, isolated operation door 722 are resetted under the effect of isolated operation door reset spring 724, and isolated operation door 722 resetted Isolated operation door U-shaped plate 723 is driven to move upwards in journey, isolated operation door U-shaped plate 723 passes through isolation interlocking limit backing pin 511 drive the first interlock plate of isolation interlocking 510 and isolation interlocking third interlock plate 530 to reset together.

When tri-station isolating switch movement is to open position, the isolation on isolation the first interlock plate 510 of interlocking interlocks L shape Crotch 512 drops into the isolation interlocking second diameter segmental arc 414 on isolation interlocking turntable 410, isolation the first interlock plate of interlocking 510 movement, drive isolation interlocking the first interlock plate 510 on isolation interlocking limit 511 downward actuation of backing pin, move downward every It drives isolated operation door U-shaped plate 723 to move downward from interlocking limit backing pin 511, is directly inserted into isolation division operation handle In the groove 111a of 110a, the manual operation limit to isolation division operation handle 110a afterwards in place is formed.

During tri-station isolating switch is from closing operation to sub-switching operation, on isolation the first interlock plate 510 of interlocking Isolation interlocking L shape crotch 512 is still fallen in the isolation interlocking second diameter segmental arc 414 on isolation interlocking turntable 410, isolation Interlock the isolation interlocking first that the isolation interlocking L shape crotch 512 on the first interlock plate 510 cannot be isolated on interlocking turntable 410 Diameter segmental arc 413 relies on, so that the isolation interlocking on isolation the first interlock plate 510 of interlocking limits the downward actuation always of backing pin 511, Always the isolation interlocking limit backing pin 511 moved downward drives isolated operation door U-shaped plate 723 to move downward always, even if beating Open isolated operation door 722, also can not operation isolation operating shaft 120, effectively prevent maloperation；

In above-mentioned isolation division operating shaft operating process, since ground connection operation door 732 is not turned on, the ground connection operation Door U-shaped plate 733 by the limitation of ground connection operation door 732 cannot downward free movement, the ground connection operation door U-shaped plate 733 leads to Ground connection interlocking limit limitation ground connection interlocking the first interlock plate 610 movement of backing pin 611 is crossed, so that ground connection interlocking third interlock plate 630 On ground connection interlocking crotch 631 reliable always hook on the ground connection interlocking scrap (bridge) 621 on ground connection the second interlock plate 620 of interlocking.

When tri-station isolating switch is needed from ground connection operation, ground connection operation door 732 is opened, division operation handle will be grounded 120a is inserted into ground connection division operating shaft 120 and rotates from open position toward ground connection direction, at this point, on ground connection interlocking turntable 420 First ground connection interlocking backing pin 421 be detached from ground connection interlocking the second interlock plate 620 on ground connection interlocking by backing pin stop side 622 Contact, the blocking stress that ground connection the second interlock plate 620 of interlocking cannot get first ground connection interlocking backing pin 421 rotate, so that Ground connection interlocking scrap (bridge) 621 on ground connection the second interlock plate 620 of interlocking is detached to be joined with the ground connection on ground connection interlocking third interlock plate 630 The contact of crotch 631 is locked, tripping is formed；The first interlock plate 610 of ground connection interlocking rotates after tripping, ground connection interlocking the after rotation Ground connection interlocking L shape crotch 612 on one interlock plate 610 is resisted against the ground connection interlocking first diameter arc on ground connection interlocking turntable 420 In section 423, obtain by the ground connection interlocking first diameter segmental arc 423 on ground connection interlocking turntable 420 against the first interlocking of ground connection interlocking Plate 610 will not continue to act, and the ground connection interlocking limit backing pin 611 on ground connection the first interlock plate 610 of interlocking is grasped without dynamic ground connection Make the movement of door U-shaped plate 733, causes the limit to ground connection division operation handle 120a.

When tri-station isolating switch movement is to earthing position, at this point, the ground connection connection on ground connection the first interlock plate 610 of interlocking Lock L shape crotch 612 drops into the contact of earth notch 425 on ground connection interlocking turntable 420, ground connection the first interlock plate 610 of interlocking Movement drives ground connection interlocking limit 611 downward actuation of backing pin on ground connection the first interlock plate 610 of interlocking, the ground connection moved downward Interlocking limit backing pin 611 drives ground connection operation door U-shaped plate 733 to move downward, and is directly inserted into ground connection division operation handle In the groove 121a of 120a, the rotation of ground connection division operation handle 120a is limited, extracts ground connection division manipulator at this time Handle 120a, ground connection operation door 732 are resetted in the case where ground connection operation door reset spring 734 acts on, and ground connection operation door 732 resetted Ground connection operation door U-shaped plate 733 is driven to move upwards in journey, ground connection operation door U-shaped plate 733 passes through ground connection interlocking limit backing pin 611 drive the first interlock plate of ground connection interlocking 610 and ground connection interlocking third interlock plate 630 to reset together.

By above-mentioned embodiment, tri-station isolating switch mechanism is able to single operation hole mode being changed to dual operation hole side Formula, and by reliable interlock, it realizes the mutual locking between dual operation hole, effectively raises the anti-error of operating mechanism Performance increases the reliability of manual operation.

Claims (3)

1. a kind of interlock with dual operation hole tri-station isolating switch mechanism, including tri-station isolating switch, described three Station disconnecting switch carries out separating brake, combined floodgate, landing operation by chain-drive mechanism driving, and the chain-drive mechanism drives by one Movable sprocket driving, which is characterized in that the drive sprocket closes point operating shaft by worm shaft, gear drive and isolation and connects Ground closes a point operating shaft and drives, and is divided to operating shaft to set up separately in two different handle holes wherein isolation conjunction is divided to operating shaft to close with ground connection It is interior；It is characterized in that, further including one being connect by the shaft-driven worm gear of the worm screw, by the worm gear shaft in the worm gear is synchronously driven Ground rotating-table apparatus and isolation rotating-table apparatus are interlocked by the synchronously driven isolation interlocking turntable of the worm gear shaft in the worm gear and ground connection Turntable is limited by the isolation limit interlock of the isolation interlocking turntable driving, by the ground connection of the ground connection interlocking turntable driving Position interlock, door interlock, the driving isolation are closed described in the isolation division operation handle for dividing operating shaft to rotate and driving Ground connection closes the ground connection division operation handle for dividing operating shaft to rotate, and is respectively provided on the ground connection rotating-table apparatus and isolation rotating-table apparatus There is position to be sliced and be latched slice, the ground connection rotating-table apparatus and the position being isolated on rotating-table apparatus are sliced and trigger corresponding fine motion Switch, output is grounded the position signal of rotating-table apparatus and the position signal of isolation rotating-table apparatus, the isolation rotating-table apparatus respectively On locking slice covering isolation close a floodgate to separating brake range, be grounded locking slice covering isolation contact of earth on rotating-table apparatus extremely Separating brake range, the mutual electric blocking realized isolation region and be grounded section；The isolation interlocking turntable goes to isolation splitting or integrating position When setting, the isolation limit interlock triggering isolation mechanical position limitation signal is driven to the door interlock and limits isolation point Closing operation handle continues to rotate；When ground connection interlocking turntable goes to earthing splitting or integrating position, the ground connection limit connection is driven Locking device triggering ground connection mechanical position limitation signal to the door interlock and limit ground connection division operation handle continue to rotate；

The door interlock includes the isolated operation door interlock of a panel and installation on the panel and ground connection operation Door interlock, is provided with that point operation axis hole is closed in isolation and ground connection closes a point operation axis hole on the panel, and the isolation, which is closed, point grasps Make axis across an isolation conjunction point operation axis hole, the ground connection, which is closed, divides operating shaft to pass through a ground connection conjunction point operation axis hole；

The isolated operation door interlock includes fixed isolated operation door inner splint on the panel, sliding configuration in institute The isolated operation door and isolated operation door U-shaped plate, the isolated operation door stated on isolated operation door inner splint are isolated with described Isolated operation door reset spring is connected between operation door inner splint, the isolated operation door closes a point operation axis hole to the isolation It is opened and closed, when the isolated operation door is not turned on, the isolated operation door U-shaped plate is grasped by the isolation Make door restrict cannot downward free movement, the isolated operation door opening after, the isolated operation door U-shaped plate by it is described every It moves up and down from the driving of limit interlock, is limited whether to the rotation that division operation handle is isolated；

The ground connection operation door interlock includes fixed ground connection operation door inner splint on the panel, sliding configuration in institute State the ground connection operation door on ground connection operation door inner splint and ground connection operation door U-shaped plate, the ground connection operation door and the ground connection Ground connection operation door reset spring is connected between operation door inner splint, the ground connection operation door closes a point operation axis hole to the ground connection It is opened and closed, when ground connection operation door is not turned on, the ground connection operation door U-shaped plate is grasped by the ground connection Make door restrict cannot downward free movement, after ground connection operation door is opened, the ground connection operates door U-shaped plate and is connect by described Ground limit interlock drives and moves up and down, and limits whether to the rotation for being grounded division operation handle.

2. a kind of interlock with dual operation hole tri-station isolating switch mechanism as described in claim 1, feature exist In in the disk of the isolation interlocking turntable, along the circumferential setting of the isolation interlocking turntable, there are two isolation interlocking backing pin, institutes It states isolation interlocking turntable outer peripheral edge to be made of isolation interlocking first diameter segmental arc and isolation interlocking second diameter segmental arc, the isolation The diameter for interlocking first diameter segmental arc is greater than the diameter of the isolation interlocking second diameter segmental arc, straight in isolation interlocking first Be provided with an isolation combined floodgate notch in diameter segmental arc, first isolation linkage block pins position in two isolation interlocking backing pins in it is described every From in the fan-shaped surface where interlocking first diameter segmental arc, second isolation linkage block pins position in two isolation interlocking backing pins is in institute It states in the fan-shaped surface where isolation interlocks second diameter segmental arc；

Isolation limit interlock include rotatable isolation the first interlock plate of interlocking and isolation the second interlock plate of interlocking with And axis is located at the isolation interlocking third interlock plate on the first interlock plate of the isolation interlocking, interlocks the first interlock plate in the isolation First end on be fixed with an isolation interlocking limit backing pin for following the isolation interlocking the first interlock plate movement, the isolation joins Lock limit backing pin is inserted into the U-lag on the isolated operation door U-shaped plate；The of the first interlock plate of the isolation interlocking One is provided on two ends to the curved isolation interlocking L shape crotch in isolation interlocking turntable direction, the isolation interlocking second The first end of jam plate is provided with isolation interlocking scrap (bridge), and the second end of the second interlock plate of the isolation interlocking is provided with isolation interlocking Side is stopped by backing pin, one end of the isolation interlocking third interlock plate is provided with isolation interlocking crotch；

In the disk of the ground connection interlocking turntable, along the circumferential setting of the ground connection interlocking turntable, there are two ground connection interlocking backing pin, institutes It states ground connection interlocking turntable outer peripheral edge to be made of ground connection interlocking first diameter segmental arc and ground connection interlocking second diameter segmental arc, the ground connection The diameter for interlocking first diameter segmental arc is greater than the diameter of the ground connection interlocking second diameter segmental arc, straight in ground connection interlocking first A contact of earth notch is provided in diameter segmental arc, two ground connection interlocking backing pins are respectively positioned on ground connection interlocking first diameter segmental arc institute Fan-shaped surface in；Described two ground connection interlocking backing pins in the circumferential with it is described two be isolated interlock backing pin and be staggered an angle；

Ground connection limit interlock include rotatable ground connection the first interlock plate of interlocking and ground connection the second interlock plate of interlocking with And axis is located at the ground connection interlocking third interlock plate on the first interlock plate of the ground connection interlocking, interlocks the first interlock plate in the ground connection First end on be fixed with a ground connection interlocking limit backing pin for following the ground connection interlocking the first interlock plate movement, the ground connection joins Lock limit backing pin is inserted into the U-lag on the ground connection operation door U-shaped plate；The of the first interlock plate of the ground connection interlocking One is provided on two ends to the curved ground connection interlocking L shape crotch in ground connection interlocking turntable direction, the ground connection interlocking second The first end of jam plate is provided with ground connection interlocking scrap (bridge), and the second end of the second interlock plate of the ground connection interlocking is provided with ground connection interlocking Side is stopped by backing pin, one end of the ground connection interlocking third interlock plate is provided with ground connection interlocking crotch；

When tri-station isolating switch is in open position, isolated operation door is opened, isolation division operation handle is inserted into institute It states in isolation division operating shaft, at this point, interlocking is isolated with described in second isolation interlocking backing pin on the isolation interlocking turntable Isolation interlocking on second interlock plate stops side contact by backing pin, and the isolation interlocks the second interlock plate and obtains second isolation connection The blocking of stopper pin is not able to rotate, so that the isolation interlocking crotch on the isolation interlocking third interlock plate is reliably hooked described On isolation interlocking scrap (bridge) on isolation the second interlock plate of interlocking, the isolation interlocks the first interlock plate and is failure to actuate, the isolation connection The isolation interlocking limit backing pin locked on the first interlock plate is acted without the isolated operation door U-shaped plate is moved；

When tri-station isolating switch from separating brake toward combined floodgate direction move when, at this point, it is described isolation interlocking turntable on second every The isolation interlocking turntable can be followed to rotate an angle from interlocking backing pin, be detached from and be isolated on the second interlock plate of interlocking with described Isolation interlocking is stopped the contact on side by backing pin, and the second interlock plate of the isolation interlocking cannot get the resistance of second isolation interlocking backing pin Gear stress rotates so that the isolation interlocking scrap (bridge) on the second interlock plate of the isolation interlocking be detached from it is described be isolated interlock the The contact of isolation interlocking crotch on three interlock plates, forms tripping；The isolation interlocks the rotation of the first interlock plate after tripping, so that Isolation interlocking L shape crotch on the first interlock plate of the isolation interlocking is resisted against the isolation interlocking the on the isolation interlocking turntable In one diameter segmental arc, by the isolation interlocking first diameter segmental arc on the isolation interlocking turntable against the isolation interlocking First interlock plate will not continue to act, and the isolation interlocking limit backing pin on the first interlock plate of the isolation interlocking is without dynamic described The movement of isolated operation door U-shaped plate；

When tri-station isolating switch movement is to closing position, at this point, the isolation on the first interlock plate of the isolation interlocking interlocks L Shape crotch drops into the isolation combined floodgate notch on the isolation interlocking turntable, and the isolation interlocks the movement of the first interlock plate, band Move the isolation interlocking limit backing pin downward actuation on the first interlock plate of the isolation interlocking, the isolation interlocking limiting block moved downward Pin drives isolated operation door U-shaped plate to move downward, and is directly inserted into the groove of isolation division operation handle, to the isolation The rotation of division operation handle is limited, and extracts isolation division operation handle at this time, the isolated operation door is in the isolation Operation door action of reset spring under resetted, in the isolated operation door reseting procedure drive isolated operation door U-shaped plate to Upper movement, the isolated operation door U-shaped plate drive isolation the first interlock plate of interlocking and isolation by isolation interlocking limit backing pin Interlocking third interlock plate resets together；

When tri-station isolating switch movement is to open position, the isolation interlocking L shape on the first interlock plate of the isolation interlocking is curved Hook drops into the isolation interlocking second diameter segmental arc on the isolation interlocking turntable, and it is dynamic that the isolation interlocks the first interlock plate Make, drives the isolation interlocking limit backing pin downward actuation on the first interlock plate of the isolation interlocking, the isolation interlocking moved downward Limit backing pin drives isolated operation door U-shaped plate to move downward, and is directly inserted into the groove of isolation division operation handle, is formed The manual operation limit to isolation division operation handle afterwards in place；In tri-station isolating switch from closing operation to sub-switching operation mistake Cheng Zhong, the isolation interlock the isolation interlocking L shape crotch on the first interlock plate and still fall on the isolation interlocking turntable Isolation interlocking second diameter segmental arc in, it is described isolation interlocking the first interlock plate on isolation interlocking L shape crotch cannot get it is described every It is relied on from the isolation interlocking first diameter segmental arc on interlocking turntable, so that the isolation interlocking on the first interlock plate of the isolation interlocking Backing pin downward actuation always is limited, the isolation interlocking limit backing pin moved downward always drives isolated operation door U-shaped plate always Move downward, though open isolated operation door, also can not operation isolation operating shaft, effectively prevent maloperation；

In above-mentioned isolation division operating shaft operating process, since ground connection operation door is not turned on, the ground connection operates door U Shape plate by the ground connection operating threshold system cannot downward free movement, ground connection operation door U-shaped plate connect by described Ground interlocking limit backing pin limits the ground connection and interlocks the movement of the first interlock plate, so that connecing on the ground connection interlocking third interlock plate Ground interlocking crotch is reliably hooked always on the ground connection interlocking scrap (bridge) on the second interlock plate of the ground connection interlocking；

When tri-station isolating switch is needed from ground connection operation, ground connection operation door is opened, ground connection division operation handle is inserted into It is rotated in the ground connection division operating shaft from open position toward ground connection direction, at this point, first on the ground connection interlocking turntable Ground connection interlocking backing pin is detached from stops side to contact with the ground connection interlocking on the second interlock plate of the ground connection interlocking by backing pin, the ground connection Interlock the second interlock plate cannot get first ground connection interlocking backing pin blocking stress rotate so that the ground connection interlock second Ground connection interlocking scrap (bridge) on interlock plate is detached from the contact that the ground connection interlocking crotch on third interlock plate is interlocked with the ground connection, is formed Tripping；The ground connection interlocks the first interlock plate and rotates after tripping, connecing on the first interlock plate of the ground connection interlocking after rotation Ground interlocking L shape crotch is resisted against in the ground connection interlocking first diameter segmental arc on the ground connection interlocking turntable, is joined by the ground connection The ground connection interlocking first diameter segmental arc locked on turntable is obtained against the ground connection interlocks the first interlock plate and will not continue to act, described Ground connection interlocking limit backing pin on ground connection the first interlock plate of interlocking is caused without the ground connection operation door U-shaped plate movement is moved Limit to the ground connection division operation handle；

When tri-station isolating switch movement is to earthing position, at this point, the ground connection on the first interlock plate of the ground connection interlocking interlocks L Shape crotch drops into the contact of earth notch on the ground connection interlocking turntable, and the ground connection interlocks the movement of the first interlock plate, band Move the ground connection interlocking limit backing pin downward actuation on the first interlock plate of the ground connection interlocking, the ground connection interlocking limiting block moved downward Pin drives ground connection operation door U-shaped plate to move downward, and is directly inserted into the groove of ground connection division operation handle, to the ground connection The rotation of division operation handle is limited, and extracts ground connection division operation handle at this time, the ground connection operation door is in the ground connection Resetted under operation door action of reset spring, driven in the ground connection operation door reseting procedure ground connection operate door U-shaped plate to Upper movement, the ground connection operation door U-shaped plate drive ground connection the first interlock plate of interlocking and ground connection by ground connection interlocking limit backing pin Interlocking third interlock plate resets together.

3. a kind of interlock with dual operation hole tri-station isolating switch mechanism as described in claim 1, feature exist In the gear drive includes the driven tooth for being fixedly connected with the worm shaft and driving the worm shaft Wheel, with it is described be isolated close a point operating shaft be fixedly connected and divided by isolation conjunction operate shaft-driven first driving gear and with institute Stating ground connection and closing a point operating shaft and be fixedly connected and closed by the ground connection divides operation shaft-driven second driving gear, and described first actively Gear, the second driving gear are meshed with the driven gear.