CN201038040Y

CN201038040Y - Double-column horizontal rotation type high-voltage segregate switch

Info

Publication number: CN201038040Y
Application number: CNU2007201205396U
Authority: CN
Inventors: 闫淼江
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-01
Filing date: 2007-06-01
Publication date: 2008-03-19
Anticipated expiration: 2017-06-01

Abstract

The utility model relates to a high-pressure isolating switch in double column horizontal rotary type, in particular to a switch equipment used for isolating live electrical equipment from power-failing equipment in a power system. The utility model is provided with two column insulators and a cross-drawbar; the two column insulators are supported on a bottom seat; the cross-drawbar is arranged between the two column insulators. The utility model is characterized in that a transposition gearing is also provided; the transposition gearing is supported on a flange axis which is on the top of a master side column insulator; the transposition gearing goes through a conductive arm by a gearing pole and is connected with a master touch; a position-limiting outlet device is supported on a flange axis which is under the master side column insulator; the position-limiting outlet device is pined and connected with the cross-drawbar. The utility model realizes that the operation of separating and combining the high-pressure isolating switch is finished in two steps. So the horizontal force produced by the operation of separating and combining the high-pressure isolating switch in a split second is effectively reduced; and the reliability and security of the whole of the isolating switch is increased.

Description

Double-column horizontal rotation type high-voltage isolation switch

Technical field:

The utility model relates to a kind of double-column horizontal rotation type high-voltage isolation switch, and it is the switchgear that is used for isolating charging equipment and power failure equipments in the electric power system.

Background technology:

High voltage isolator is to be used for deciliter voltage being arranged and the switchgear of zero load circuit in the electric power system, that is to say, when people's repair apparatus, can utilize high voltage isolator between quilt maintenance equipment and charging equipment, to form obvious visible cut-off point, high voltage isolator can also can bear short-circuit current by running current reliably under closure state, high voltage isolator cooperates the load operation mode that can also change electrical network with high-voltage switch gear in addition.High voltage isolator is the power equipment of consumption maximum in the electric power system, and major part is used out of doors

In the existing equipment technology, be example with GW4 or GW14 type isolating switch, they comprise at least one phase Switch main body and operating mechanism.Its body construction is a double-column horizontal rotation type, and every phase structure is by base, and post insulator, running part and current-carrying part are formed.Be fixed on that base two ends on the base frame are rotatable supports two post insulators of fixedlying connected with conductive arm, running part comprises the cross link of leading the flange flexible connection of microbrachia bottom with two, the waling stripe that each phase post insulator bottom is movably connected, the drive link assembly that at least one links to each other with operating mechanism; This drive link assembly passes to this post insulator with the operational torque of operating mechanism makes this post insulator realize closing, dividing action; Current-carrying part is by the conductive arm, the main contact that is connected to two conductive arm ends, the involutory contact that are separately fixed at post insulator upper end and be located at the binding post that two post insulator tops are connected with external equipment respectively and form.Every group of isolating switch is usually by three identical phase compositions of said structure.A lateral brace insulator that links to each other with the shackle rod assembly is provided with girt between phase and phase.

Above-mentioned isolating switch is action like this: when closing operation, operating mechanism is given a lateral brace insulator by the shackle rod assembly with clockwise moment transmission, this post insulator self turns clockwise and by cross link the part of this operational torque is passed to the opposite side lateral brace insulator of same phase, makes the both sides conductive arm swing in opposite directions and contact is incorporated into mutually in the middle of two insulators.With the whole interlock of three-phase is example, the rotation of this post insulator also drives girt and gives another isolated switch with equidirectional transmission of torque, same another phase post insulator is also given the last phase with the transmission of torque of remainder when making closing operation, also can form the isolating switch that three-phase divides body action at an every operating mechanism and drive link assembly of being provided with mutually.

The operating process of " branch " similarly, operating mechanism is given counterclockwise transmission of torque the post insulator that connects therewith by the drive link assembly, the transmission order is the same, and just the action of isolating switch is opposite with the direction of closing, and makes it go to the position of branch from the position of closing.Described isolated switch main contact and involutory contact are fixedly connected on the conductive arm end respectively, the back contact heating problem ubiquity of its contact assembly, therefore, in order effectively to solve the problem of contact assembly back contact heating, before the application proposes, the applicant also discloses a kind of " high voltage isolation switch contact assembly " (Chinese patent application number be 200520142318), this is the axial contact assembly technology of relative scalable action of finger mount and conductive seat when isolating switch divides closing operation, and efficiently solves the problems referred to above.But when this technology is used on existing isolating switch body, in some more high-tension equipment, for example more than the 220KV, increased the switch impulsive force that moment produces that is harmonious.

This problem is owing to existing double-column horizontal rotation type isolating switch technology exists, during existing isolating switch body operation " branchs " " to close " action be one to go on foot and finish, but because the single contact fingertip of prior art negligible amounts, it is less to overcome spring impact strength when closing contact, existing post insulator designs its intensity by this and can meet the demands, but above-mentioned contact assembly patented technology fingertip doubles, and therefore runs the pass instant impact jointly and enlarges markedly, and the switch-dividing operation is also like this.This problem causes very serious destruction sometimes, for example causes similar accidents such as post insulator fracture, has reduced the reliability and the fail safe of equipment.Yet simple employing increasing post insulator in fact is very difficult in order to address this problem on big electric current high voltage isolating switch, makes the technical scheme of above-mentioned " high voltage isolation switch contact assembly " can't give full play to its technical role.

In the Chinese patent application file " a kind of high voltage isolation switch contact assembly " (application number is 200620000500), isolation switch contact technology similar to the above is also disclosed, also for shortening the contact assembly that can make fingertip obtain contact pressure and fingertip and conductive seat are closely contacted by finger mount with the conductive seat axial spacing, therefore also there is above-mentioned same problem in its structure.

Summary of the invention:

The purpose of this utility model is a kind of simple in structure, and can finish and close, divide operation by action in two steps, thereby avoids closing, divide the double-column horizontal rotation type isolating switch of the generation of switching impulse power.

The purpose of this utility model is achieved in that

A kind of double-column horizontal rotation type high-voltage isolation switch, comprise that it is supported on one on base master end post insulator that is connected with shackle rod and a slave end post insulator, be arranged on two cross link between the post insulator, be provided with a conductive arm at the top of slave end post insulator, and fixedly connected with an involutory contact; The conductive arm and a main contact at post insulator top, master end are electrically connected; It is characterized in that it also comprises a transposition transmission mechanism that is fixedly supported on post insulator top, master end, described transposition transmission mechanism passes conductive arm by a drive link and is connected with a main contact; At spacing mouthful device that takes off of post insulator lower end, described master end flange shaft upper support, described spacing take off mouthful device and cross link hinged.

Described transposition transmission mechanism is made up of stressed transposition clutch, transmission component, shell and the flange shaft that is fixedly connected on master end post insulator upper flange of control; Described shell is fixedlyed connected with conductive arm and is supported on rotationally on the described flange shaft; Described transmission component is connected with the spring assembly of main contact by a drive link that passes conductive arm.

Described spacing trip gear includes one and rotatablely is supported on dropout wheel on the flange shaft, is arranged on snap close piece and back-moving spring on the wheel of threading off, is arranged on the dropout shelves on the base.

Described snap close piece be one " L " shape tabular, be connected on the wheel of threading off by a radial axle, snap close piece is sealed with flange by the buckle on it, described dropouts shelves are fixed on the base, can cooperate dropout to move with snap close piece.

It is to rotate to the angular advance that the both sides contact is harmonious with two post insulators to exceed for 5 °～15 ° that the described shelves of threading off are fixed on position on the base.

Described spacing trip gear includes the wheel of threading off, be arranged on snap close piece on the wheel of threading off, be arranged on the dropout guide rail on the base, and this snap close piece is one and is cooperated the inserted link that can move down by spring; The center line of described guide rail is the arc section of one section center of circle around flange shaft.

The transmission component of described transposition transmission mechanism comprises drive plate, driver plate, connecting plate and drive link, described drive plate, driver plate and connecting plate hinge constitute one four connecting rod, wherein drive plate is fixed on the flange shaft, on the wall, described driver plate has a hole that flange shaft is surrounded into to the other end hinge support of connecting plate in the enclosure.

Described transmission component comprises cam, drive link and the cam holder that is connected with drive link that is fixed on the flange shaft; Cam holder middle part is provided with one along drive link axis arranged and slotted hole that flange shaft is surrounded into, one side cam holder and cam are engaged in and are provided with the thrust limit away from drive link.

Described transmission component includes drive plate, driver plate, reaches drive link; Driver plate is provided with parallel with drive link and elongated slot, driver plate that flange shaft is surrounded is into also had perpendicular elongated slot away from drive link one side, on drive plate, vertically establish a push rod that can connect by the friction of elongated slot and driver plate, described flange shaft is fixedlyed connected with drive plate, and driver plate is fixedlyed connected with drive link.

Described transposition clutch comprises that one can be made the transposition bar of stretching motion, the spring of interoperation on rod axis, and transposition bar one end that penetrates spring is movably connected on the hinged-support that is fixed in outer casing inner wall, and the other end and drive plate or cam are hinged; Be provided with a through hole with the connecting shaft piece of hinged-support hinge, this through hole can vertically pass the transposition bar.Described transposition clutch is by drive plate and the spacing shelves interoperation that is located at outer casing inner wall.

Described transposition clutch includes castle wheel that is fixed on the flange shaft and the spacing shelves that are located on the outer casing inner wall, and the Flexible element that described castle wheel is arranged by several radial axial symmetry one constitutes built-in spring of described Flexible element and moving contact.

Described transposition clutch wall in the enclosure is provided with the several section guide grooves of being cut apart by spacing shelves corresponding with Flexible element.

Described transposition clutch include hinge support in the enclosure wall fixture block, be located at pressing plate, connecting rod and back-moving spring in the main contact, described fixture block is connected with pressing plate by connecting rod; Described pressing plate hinge is at the front end of spring assembly, and is provided with the retaining tooth with the fixture block interoperation at cam or drive plate edge.

Described transposition clutch is provided with three connecting rods, and three connecting rods are end to end hinged, and described connecting rod is supported on the conductive seat of main contact by a support is rotatable, and connecting rod and fixture block are hinged.

Link together by one group of inside engaged gear between described master end post insulator lower flange and shackle rod, the girt, described inside engaged gear comprises internal gear, external gear and the rotating shaft of fixedlying connected with external gear, described external gear is supported on the base rotationally by rotating shaft, and the outside of external gear is connected with shackle rod, girt falling hinger.

Between the main shaft of the lower flange of master end post insulator and operating mechanism, master end post insulator lower flange be bevel gear transmission or worm and gear transmission or tooth bar transmission or chain drive between phase and phase.

The utility model will have one step of high voltage isolator closing operation action now and finish to change in two steps and finish, equally, dividing operational motion also to change in two steps finishes, reduce isolating switch so effectively in minute lateral impact forces of closing operation moment generation, therefore improved isolating switch whole reliability and fail safe.

Description of drawings:

Fig. 1 is the stereogram structural representation of a phase of the present utility model.

Fig. 2 is the partial structurtes cutaway view of utility model one phase main contact one side

Fig. 3 is the utility model Fig. 2 A-A cross sectional plan view

Fig. 4 is the cross sectional plan view of the utility model embodiment 1 along Fig. 2 B-B

Fig. 5 is the transposition transmission mechanism of the utility model embodiment 2 and the cross sectional plan view of main contact.

Fig. 6 is the C-C cross sectional plan view of the utility model Fig. 5.

Fig. 7 is the partial sectional view of the spacing trip gear of the utility model embodiment 2

Fig. 8 is the cross sectional plan view of the transposition transmission mechanism of the utility model embodiment 3.

Fig. 9 is the cross sectional plan view of the transposition transmission mechanism of the utility model embodiment 4.

Figure 10 is the structural representation of pull bar double-action part among the utility model embodiment 5

Embodiment:

Be embodiment of the present utility model with Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10 below, the utility model is further detailed.

Embodiment 1: as shown in accompanying drawing 1,2,3,4:

In the present embodiment, the utility model comprises master end post insulator 21 and the slave end post insulator 22 that is supported on the base 1; The intertie 12 of She Zhiing between the two; The following end flanges 29 hinged shackle rods 14 that with of the prior art operating mechanism 13 are connected fixedly connected with master end post insulator 21; Flange 29 is connected with axle 46 one, on this flange shaft 46, be provided with a spacing trip gear 4, spacing trip gear 4 rotatable being supported on the flange shaft 46, between described master end post insulator 21 and conductive arm 25, be provided with a transposition transmission mechanism 2, this transposition transmission mechanism 2 comprises transmission component 5, transposition clutch 7, flange shaft 53 and shell 50, shell 50 rotatable being supported on the flange shaft 53 of described transposition transmission mechanism 2, flange shaft 53 is fixed with post insulator 21 flanges.The shell 50 of described transposition transmission mechanism 2 is fixedlyed connected with conductive arm 25, and transposition transmission mechanism 2 is connected by the drive link 55 that passes conductive arm 25 with the spring assembly 36 of main contact 3, makes spring assembly 36 fingertip is squeezed on the conductive seat of conductive arm 25 front ends; Slave end post insulator 22 is fixed with member 35 flanges, and member 35 is fixed and is electrically connected with conductive arm 26, involutory contact 31.Intertie 12 is connected with flange 29 falling hingers with flange 24 respectively, and flange 24 is the following end flanges of slave end post insulator 22.

Described in the present embodiment spacing trip gear 4 includes the wheel 48 of threading off, be arranged on snap close piece 42, back-moving spring 45 on the wheel 48 of threading off, be arranged on buckle 413 below the flange 29, be arranged on the dropout shelves 44 on the base 1, and snap close piece 42 1 ends that are connected on the wheel 48 of threading off by a radially little axle are provided with a buckle 421.When buckle 413 cooperation buckles 421 make the wheel 48 of threading off go to synchronously with master end post insulator 21 snap close piece 42 and dropout shelves 44 are collided, the wheel 48 of then threading off is threaded off and is separated with flange 29, is rain-proof dust-proof, and its spacing trip gear 4 is provided with shell 40

In the present embodiment, the transmission component 5 of described transposition transmission mechanism 2 comprises compositions such as driver plate 51, drive plate 52, connecting plate 54, drive link 55.Drive plate 52 is fixed on the flange shaft 23, and is hinged with driver plate 51 by a hinge 56 that is located on the drive plate 52; The hinge 66 that described driver plate 51 is provided with and connecting plate 54, drive link 55 hinges, connecting plate 54 other end hinge support are on shell 50 inwalls.Another place of drive plate 52 is hinged with transposition bar 72 other ends by hinge 65, and described drive link 55 passes conductive arm, and the other end is connected with the spring assembly 36 of contact 3.Shell about in the of 50 two parts respectively by bearings on flange shaft 23, and butt joint is installed up and down.Be provided with in the middle of the described driver plate 51 and be convenient to that flange shaft 53 runs through and the hole 512 of oscillating motion.Described transposition clutch 7 comprises telescopic transposition bar 72, spring 73 and the hinge connecting shaft piece 71 at shell 50 inwalls, hinge is provided with a through hole at the connecting shaft piece 71 of hinged-support, and this through hole can pass the transposition bar and the transposition bar is moved freely at its axis direction.When flange shaft 53 clockwise directions rotate, transposition transmission mechanism 2 drive conductive arms 25 rotate synchronously under the maintenance of transposition clutch 7, drive plate 52 is provided with a Ka Tai, at this moment the card decometer of drive plate 52 is motionless in transposition transmission mechanism shell 76 positions, when going to main contact and involutory contact when being incorporated into, conductive arm 21 stops swinging, when conductive arm 25 is subjected to suitable resistance, make 72 actions of transposition bar, the Ka Tai of drive plate 52 moved to 75 o'clock by 76 o'clock, then driver plate 51 rotates around hinge 66, makes hinge 66 to right translation simultaneously, when driving integrated circuit board platform moves at 75, the main contact compression travel stops, the transposition release.

Operation principle: isolating switch carries out " closing " operation in " branch " position, operating mechanism 13 passes to master end post insulator 21 by the operational torque that shackle rod 14 will " close ", making flange shaft 46 drive the wheel 48 of threading off rotates together, and by the 22 synchronous counter-rotatings of cross link 12 drive slave end post insulators, when master end post insulator 21 and slave end post insulator 22 rotate to main contact 3 in opposite directions, during position (closing the position in advance) that involutory contact 31 two parts are harmonious, the shelves 44 of threading off are stirred snap close piece 42 threads off buckle 413 and link plate buckle 421, at this moment main shaft 46 is rotated further and the wheel of threading off 48 stops operating, slave end post insulator 22 stops at this position under non-magnetic shim 20 effects simultaneously, the transposition torsion that involutory contact 31 will stop operating to 3 one of main contacts conversely, and make transposition transmission mechanism 2 itself be subjected to torsion and make transposition bar 72 produce the transposition action, this moment conductive arm 25, shell 50 is motionless, and being rotated further and driving drive plate 52, master end post insulator 21 rotates along clockwise direction, make driver plate 51 pulling hinge axis 66 when hinge axis 66 rotates move right, and under the constraint of connecting plate 54, drive link 55 is spurred to the right, go to stop position 75 until drive plate 52 boss, at this moment drive link 55 closely is squeezed on the contact base 30 with power by spring assembly 36 all fingertips 33 with main contact 3, front contact closely contact on involutory contact 31, thereby realize " closing " on electric.

" branch " operation, when the position of " closing ", operating mechanism 13 passes to master end post insulator 21 by transmission device 14 operational torques with " branch " of the present utility model, and the upper flanges 23 by the master end post insulator rotates counterclockwise and drives drive plate 52 and counterclockwise rotate, make driver plate 51 when hinge axis 66 rotates counterclockwise, be moved to the left, after 72 transpositions of transposition bar, drive link 55 moves to left and has unclamped main contact 3 and contacts with the tight of involutory contact 31, drive plate 52 turns to stop 76, flange shaft 53 drives shell 50 and conductive arm 25 synchronous rotary oscillations thereupon, snap close piece 42 and buckle 43 are sealed and drive spacing trip gear 4 and rotate synchronously, make cross link 12 also drive slave end post insulator 22 and conductive arm 26 by the rightabout rotation, to both sides conductive arm backwards rotation to " branch " position.

Embodiment 2: as shown in accompanying drawing 5,6,7:

In the present embodiment, as shown in Figure 7, described spacing trip gear 4 includes the release 41 of threading off wheel 48 and being provided with above, described release 41 is provided with a release lever that can move upward 412, and spring 415, be engaged in down with release lever 412 upper ends and be provided with buckle 413 below the end flanges 29, be engaged in base 1 with release lever 412 lower ends and be provided with dropout guide rail 411.

In the present embodiment, described transposition transmission mechanism 2 comprises transmission component 5, transposition clutch 7 shells 50 and flange shaft 53, described transmission component 5 is provided with a driver plate 58, cam 59 and drive link, have along the slotted hole 582 of drive link direction in the middle of the driver plate 58 and pass flange shaft 53, following one side of driver plate 58 is provided with thrust face 581, the another side of driver plate 58 and drive link 55 are fixedly linked, be fixed in the cam-like that the cam 59 edge partial design on the flange shaft 53 become to match with thrust face 581, be provided with one at another place at the edge of drive plate and keep off tooth 9.

As Fig. 5, shown in 6, described transposition clutch 7 is provided with the fixture block 91 of a hinge on shell 50, described fixture block 91 is through end to end connecting rod 372 successively, 371,370 be located at main contact 3 in pressing plate 38 be connected, described pressing plate 38 other end hinges are at spring assembly 36 front ends, connecting rod 371 rotatable shafts are connected on the support 39, and be supported on the conductive seat 30 in the main contact by support 39, connecting rod 372 passes conductive arm 25, with connecting rod 371 hinges, connecting rod 370 passes spring assembly 36 end faces and pressing plate 38 hinges, described fixture block 91 is provided with back-moving spring 27, the end face of fixture block 91 cooperates with retaining tooth 9 on being located at drive plate, when involutory contact 31 is incorporated into and pushes pressing plate, can pass through connecting rod 370,371,372 overcome back-moving spring 27 pulling fixture blocks 91 rotates end face disengaging retaining tooth 9, realizes the transposition clutch; Fixture block 91 reposition under the effect of back-moving spring 27 cooperates with retaining tooth 9 flange shaft 53 and shell 50 lockings when " branch " operated.

Spacing trip gear in this embodiment, before main contact and involutory contact do not close, the release lever 412 of release 41 is by dropout guide rail 411 jack-up, buckle 413 below the following end flanges 29 is blocked by release lever 412, make the flange shaft 46 and wheel 48 unitary rotation of threading off, when master end post insulator 21, slave end post insulator 22 rotates in opposite directions near main contact 3, when involutory contact 31 is harmonious the position, release lever 41 skids off the end of guide rail 411 thereupon, make release lever 412 break away from buckle 413, at this moment spacing trip gear 4 breaks away from lower end flange shaft 29 and stops operating, the also spacing stop of slave end post insulator 22, and master end post insulator 21 is rotated further, at this moment main contact and involutory contact are incorporated into, when pressing plate 38 is subjected to the extruding of involutory contact 31, stressed effect is by connecting rod 370,371,372 transmission makes fixture block 91 throw off retaining tooth 9, the action of clutch 7 promptly replaces, the braking action of 50 pairs of drive plates of shell is removed, add a motive force to thrust face 581 when cam 59 rotates, make driver plate 58 under the constraint of axle 53, drive drive link 55 to right translation.

Other parts of the present utility model and embodiment 1 are identical.

Embodiment 3: as accompanying drawing as shown in Figure 8.

In the present embodiment, described transposition transmission mechanism 2 comprises a transmission component 5 and transposition clutch 7, flange shaft 53 and shell 50, transmission component 5 includes drive plate 62, driver plate 61, and drive link 55, driver plate 61 has the elongated slot parallel with drive link 611, also have the orientation elongated slot vertical 612 at driver plate away from drive link one side with drive link, flange shaft 53 runs through elongated slot 611, and the push rod 621 of a vertical direction is set at the edge of drive plate 62, flange shaft 53 is fixedlyed connected with drive plate 62, driver plate 61 is fixedlyed connected with drive link 55, drive plate 62 becomes the rectilinear motion of driver plate 61 along the drive link axis by set push rod 621 logical cun frictional fit in elongated slot 612 with torque, when carrying out " closing " operation and transposition transmission mechanism when being subjected to replacing torsion, flange shaft 53 turns clockwise with respect to shell 50, drive the rotation of drive plate 62 clockwise directions, make push rod 621 promote driver plate to right translation by elongated slot 612, drive drive link 55 and move right, transposition bar 72 that the transposition clutch is provided with and spacing

shelves

75,76 mating reaction makes its transposition action satisfy isolating switch and is closing the compression stress requirement of position main contact.

Other parts of the present utility model and embodiment 1 are identical.

Embodiment 4, as shown in accompanying drawing 9.

In the present embodiment, described transposition transmission mechanism 2 includes transmission component 5, transposition clutch 7, flange shaft 53 and shell 50.Transmission component 5 is made up of the cam 68 that is fixed on flange shaft 53, drive link 55 and the cam holder 67 of fixedlying connected with drive link 55 etc., be provided with the thrust face 671 that and cam 68 cooperates transmissions below the cam holder 67, driver plate 67 is run through by axle 53, and cam 68 cooperated with thrust face 671 torque is become along the pulling force of drive link axis when flange shaft 53 was rotated.Described transposition clutch 7 include the castle wheel that is fixed on the flange shaft 53 69 and be located on shell 50 inwalls four spacing shelves 74 and by spacing shelves 74 four sections guide grooves cutting apart, the Flexible element that this castle wheel 69 is arranged by four radial axial symmetry one constitutes built-in spring of Flexible element and moving contact 78.Moving contact 78 can be ball or push rod, and in the present embodiment, moving contact 78 is a ball.Flexible element moves to clearing end positioning 79 pittings by the moving contact 78 on the crowded wall in the enclosure from initiating terminal positioning 77 pittings along garden week, or it is oppositely as the same, promptly realize its transposition action, positioning 77,79 is used for stablizing " branch " and " closes " state, in " closing " operating process, when flange shaft 53 is subjected to replacing torsion, drive cam 68 rotations and drive cam holders 67 and move to right by thrust face 671, make transposition clutch 69 shift out positioning 77 clockwise simultaneously, transposition clutch 69 also goes to positioning 79 and is stabilized in this when being rotated further to " closing " position." branch " when operation flange shaft 53 switched in opposite, cam 68 rotates counterclockwise and driver plate 67 is moved to left unclamp drive link 55, the clutch 69 that replaces simultaneously also rotates counterclockwise ball 78 is fallen in the positioning 77, position-limiting action is played on spacing stop 74 two sides among the figure.

Described transposition clutch 7 also can not established guide groove, only cooperates the ball of Flexible element or push rod to realize the transposition action at limit position shelves of its shell 50 inwalls.

Other parts and the embodiment 1 of present embodiment are identical.

Embodiment 5, and is as shown in Figure 10:

In order to make contact obtain bigger compression travel when the closing operation, even also the operation corner of post insulator is bigger, can adopt following scheme by the serial verb construction between its lower flange 29 and shackle rod 14, the girt 15 at the utility model master end post insulator 21:

As shown in figure 10, between master end post insulator and shackle rod 14, girt 15, be provided with one group of inside engaged gear system, comprise internal gear 291, external gear 145 and the rotating shaft 146 of fixedlying connected etc. with external gear 145.Its external gear 145 by rotating shaft 146 rotatable be supported on the base 1 and with internal gear 291 in engagement.Its internal gear fixes with flange 29 or one is connected, and the outside of external gear is connected with shackle rod 14, girt 15 falling hingers.

Because pull bar interlock mode is simple in structure, the reliability height is used extensivelyr in isolating switch, but in the existing pull bar kind of drive, when main shaft 131 turned over an angle 2 θ, post insulator can only turn over one less than 90 ° angle θ.When adopting the present embodiment structure, when external gear 145 after turning over angle θ under the effect of shackle rod 14, internal gear 291 and master end post insulator 21 will turn over θ * R/r angle, and (R represents the external gear radius among the figure, r represents the internal gear radius) can under the situation that does not change the pull bar kind of drive, post insulator be operated corner enlarge thus.In the present embodiment, as shown in Figure 10, inside engaged gear is designed to R/r=2, when main shaft 131 operation corners were 2 θ=180 °, the external gear corner was that θ=90 ° post insulator 21 corners are extended to θ * R/r=180 °.Suitably choose the R/r value, then post insulator operation corner can be selected in theory〉any value of 90 °.It is unlikely excessive at the handle corner number of degrees of manual operation mechanism adopting above-mentioned transmission scheme to also have a benefit, is convenient to manual operation.

The serial verb construction of the utility model and operating mechanism 13 can also be adopted with other frame mode and be realized, promptly between the lower flange 29 of the main shaft 131 of operating mechanism and master end post insulator 21, lower flange 29 phase and phases of master end post insulator 21 between, adopt bevel gear transmission or worm and gear transmission or tooth bar transmission or chain drive etc.Operating mechanism 13 is a prior art.

Other parts and embodiment 1 in the present embodiment are identical.

Claims

1. double-column horizontal rotation type high-voltage isolation switch, comprise the master end post insulator (21) that is connected with shackle rod (14) and the slave end post insulator (22) that are supported on the base (1), be arranged on two cross link (12) between the post insulator, be provided with a conductive arm (26) at the top of slave end post insulator, and fixedly connected with an involutory contact (31); The conductive arm (25) at post insulator top, master end is electrically connected with a main contact (3); It is characterized in that it also comprises a transposition transmission mechanism (2) that is fixedly supported on master end post insulator (21) top, described transposition transmission mechanism (2) passes conductive arm (25) by a drive link (55) and is connected with a main contact (3); At spacing mouthful device (4) that takes off of described master end post insulator (21) lower end flange shaft (46) upper support, a described spacing mouthful device (4) and the cross link (12) of taking off is hinged.

2. the double-column horizontal rotation type high-voltage isolation switch described in claim 1 is characterized in that described transposition transmission mechanism (2) is made up of stressed transposition clutch (7), a transmission component (5), shell (50) and the flange shaft (53) that is fixedly connected on post insulator (21) top flange (23) of control; Described shell (50) is fixedlyed connected with conductive arm (25) and is supported on rotationally on the described flange shaft (53); Described transmission component (5) is connected with the spring assembly (36) of main contact (3) by a drive link (55) that passes conductive arm.

3. the double-column horizontal rotation type high-voltage isolation switch described in claim 1, the described spacing trip gear of its feature (4) include one and rotatablely are supported on dropout wheel (48) on the flange shaft (46), are arranged on snap close piece (42) and back-moving spring (45) on the wheel (48) of threading off, are arranged on the dropout shelves (44) on the base (1).

4. the double-column horizontal rotation type high-voltage isolation switch described in claim 3, the described snap close piece of its feature (42) be one " L " shape tabular, be connected on the wheel (48) of threading off by a radial axle (422), snap close piece (42) is sealed with flange (29) by the buckle (421) on it, and described dropout shelves (44) are fixed on the base.

5. it is to rotate to the angular advance that the both sides contact is harmonious with two post insulators to exceed for 5 °～15 ° that the double-column horizontal rotation type high-voltage isolation switch described in claim 4, the described shelves (44) of threading off of its feature are fixed on position on the base.

6. the double-column horizontal rotation type high-voltage isolation switch described in claim 1, the described spacing trip gear of its feature (4) includes the wheel (48) of threading off, be arranged on snap close piece (41) on the wheel (48) of threading off, be arranged on the dropout guide rail (411) on the base (1), and this snap close piece (41) is one and is cooperated the inserted link that can move down by spring (415); The center line of described guide rail (411) is the arc section of one section center of circle around flange shaft (46).

7. the double-column horizontal rotation type high-voltage isolation switch described in claim 2, the transmission component (5) of the described transposition transmission mechanism of its feature (2) comprises drive plate (52), driver plate (51), connecting plate (54) and drive link (55), described drive plate (52), driver plate (51) and connecting plate (54) hinge constitute one four connecting rod, wherein drive plate (52) is fixed on the flange shaft (23), the other end hinge support of connecting plate (54) is on shell (50) inwall, and described driver plate (51) has a hole (512) that flange shaft (53) encirclement is entered.

8. the double-column horizontal rotation type high-voltage isolation switch described in claim 2, the described transmission component of its feature (5) comprises cam (59), the drive link (55) and the cam holder that is connected with drive link (58) that is fixed on the flange shaft (53); Cam holder (58) middle part is provided with one and surrounds the slotted hole (582) of entering along the drive link axis arranged and with flange shaft (53), cam holder (58) and cam (59) be engaged in away from drive link (55) one side be provided with thrust limit (581).

9. the double-column horizontal rotation type high-voltage isolation switch described in claim 2, the described transmission component of its feature (5) include drive plate (62), driver plate (61), and drive link (55); Driver plate (61) is provided with parallel with drive link (55) and elongated slot (611), driver plate (61) that flange shaft (53) encirclement is entered also have perpendicular elongated slot (612) away from drive link (55) one sides, on drive plate (62), vertically establish one and can pass through the push rod (621) that elongated slot (612) is connected with driver plate (61) friction, described flange shaft (53) is fixedlyed connected with drive plate (62), and driver plate (61) is fixedlyed connected with drive link (55).

10. the double-column horizontal rotation type high-voltage isolation switch described in claim 2, the described transposition clutch of its feature (7) comprises that one can be made the transposition bar (72) of stretching motion, the spring (73) of interoperation on rod axis, transposition bar (72) one ends that penetrate spring (73) are movably connected on the hinged-support that is fixed in shell (50) inwall, and the other end and drive plate (52,62) or cam (68,59) are hinged; Be provided with a through hole with the connecting shaft piece (71) of hinged-support hinge, this through hole can vertically pass transposition bar (72).

11. the double-column horizontal rotation type high-voltage isolation switch described in claim 2, the described transposition clutch of its feature (7) includes the castle wheel (69) that is fixed on the flange shaft (53) and is located at spacing shelves (74) on shell (50) inwall, the Flexible element that described castle wheel (69) is arranged by several radial axial symmetry one constitutes built-in spring of described Flexible element and moving contact (78).

12. the double-column horizontal rotation type high-voltage isolation switch described in claim 11, the described transposition clutch of its feature (7) are provided with the several section guide grooves of being cut apart by spacing shelves (74) corresponding with Flexible element at shell (50) inwall.

13. the double-column horizontal rotation type high-voltage isolation switch described in claim 2, the described transposition clutch of its feature (7) include hinge support at the fixture block (91) of shell (50) inwall, be located at pressing plate (38), connecting rod and back-moving spring (27) in the main contact, described fixture block (91) is connected with pressing plate (38) by connecting rod; Described pressing plate (38) hinge is at the front end of spring assembly (36), and is provided with the retaining tooth (9) with fixture block (91) interoperation at cam (59) or drive plate (62,52) edge.

14. the double-column horizontal rotation type high-voltage isolation switch described in claim 13, the described transposition clutch of its feature (7) is provided with three connecting rods (372,371,370), three connecting rods are end to end hinged, described connecting rod (371) is supported on the conductive seat (30) of main contact (3) by a support (39) is rotatable, and connecting rod (372) is hinged with fixture block (91).

15. as each the described double-column horizontal rotation type high-voltage isolation switch in the claim 1 to 14, it is characterized in that described master end post insulator (21) lower flange and shackle rod (14), link together by one group of inside engaged gear between the girt (15), described inside engaged gear comprises internal gear (291), external gear (145) and the rotating shaft (146) of fixedlying connected with external gear (145), described external gear is supported on the base (1) rotationally by rotating shaft, the outside of external gear and shackle rod (14), girt (15) falling hinger connects.

16. as each the described double-column horizontal rotation type high-voltage isolation switch in the claim 1 to 14, it is characterized in that between the main shaft (131) of the lower flange of master end post insulator (21) and operating mechanism (13), master end post insulator (21) lower flange be bevel gear transmission or worm and gear transmission or tooth bar transmission or chain drive between phase and phase.