CN208796898U - A kind of switching driving device of vacuum circuit breaker - Google Patents

Abstract

The utility model provides a kind of switching driving device of vacuum circuit breaker, belongs to high-tension switch gear technical field.It solves the problems, such as that existing vacuum circuit breaker switching is slow-footed.This switching driving device, including bracket, driving mechanism and acceleration mechanism, there is drive rod in driving mechanism, drive rod lower vertically can move, acceleration mechanism includes hinged with bracket and forms hinge joint one and connecting lever that the other end is connect with drive rod, connecting rod that is hinged with connecting lever and forming hinge joint two and stress deformation energy storage and Flexible element of the connecting rod with upwards thrust can be made along the vertical direction, Flexible element is hinged with connecting rod and forms hinge joint three, hinge joint one is located at three top of hinge joint, hinge joint two is between hinge joint one and hinge joint three and hinge joint two can swing back and forth in the two sides of three line of hinge joint one and hinge joint.The utility model can either improve the switching speed of arc-chutes, and being stably connected with for moving contact and static contact can be kept after combined floodgate.

Description

A kind of switching driving device of vacuum circuit breaker

Technical field

The utility model belongs to high-tension switch gear technical field, is related to a kind of vacuum circuit breaker, especially a kind of vacuum The switching driving device of breaker.

Background technique

The dielectric of vacuum circuit breaker contact gap after its arc-extinguishing medium and arc extinguishing is gained the name due to being all high vacuum；It has There is the advantages of small in size, light-weight, not have to maintenance suitable for frequent operation, arc extinguishing, using more universal in power distribution network.True In the use process of empty breaker, when moving contact and close static contact, is easy to produce electric arc, therefore the division of vacuum circuit breaker Lock speed is become better and better, and to reduce the generation of electric arc, reduces the damage to equipment.Therefore, the switching driving of vacuum circuit breaker Core component one of of the device as vacuum circuit breaker, stability is most important with driving speed.

Currently, the switching driving device of vacuum circuit breaker mainly has the spring operating mechanism using theory of mechanics, uses The permanent-magnet manipulating mechanism of electromagnet principle and the repulsive force mechanism for using electromagnetic eddy repulsion principle, wherein in order to realize automation, Permanent-magnet manipulating mechanism and repulsive force mechanism using more and more extensive.

Such as a kind of Chinese patent application (application number: high-speed vacuum based on vortex driving disclosed in 201510914752.3) Breaker, operating mechanism include the metal dish being installed in connecting rod, and closing line is respectively set above and below metal dish Circle and opening coil close a floodgate and open a sluice gate to make metal dish by making closing coil and opening coil be powered to generate magnetic flux respectively Reverse induction magnetic field is generated, vortex repulsion is formed and is moved with drive connection bar.Due to distance between the size and object of repulsion It square is inversely proportional, therefore, although the initial stressed of connecting rod is larger, however as the movement of connecting rod, its stress can subtract rapidly It is small, keep the instantaneous stress of connecting rod larger and subsequent out of strength, connecting rod stress is unstable, and continuity is poor, after switch closing and switch opening Phase speed is lower, to keep the overall time of switch closing and switch opening still longer, is unfavorable for arc extinguishing.

Although Chinese patent application (application number: 200420109710.X) discloses a kind of 126KV single break outdoor high-voltage Vacuum circuit breaker uses permanent-magnet manipulating mechanism to drive insulated pull rod to move up and down with switching, and covers in drive rod lower part If separating brake acceleration spring is to improve opening velocity.However, dividing since its separating brake acceleration spring is directly set on drive rod The elastic force needs provided when lock store during combined floodgate, that is to say, that separating brake acceleration spring is reversed in making process Acting, which results in vacuum circuit breaker combined floodgate more difficulty, the time required to moving contact is bonded with static contact in vacuum extinction room It is longer, that is, the time existing for electric arc is extended, the risk of combined floodgate is improved.

Utility model content

The purpose of this utility model is the presence of the above problem in view of the prior art, proposes a kind of opening for vacuum circuit breaker Combined floodgate driving device opens a sluice gate and closes a floodgate the technical problem to be solved by the utility model is to how to improve vacuum vacuum circuit breaker Speed and stability.

The purpose of this utility model can be realized by the following technical scheme:

A kind of switching driving device of vacuum circuit breaker, including bracket, driving mechanism and acceleration mechanism, the driving machine There is the drive rod being vertically arranged, the drive rod can move down vertically and opening for realizing vacuum circuit breaker on structure It closes a floodgate, the acceleration mechanism includes one end with bracket hingedly and is formed with hinge joint one and what the other end was connect with drive rod turns Arm, connecting rod hinged with connecting lever and forming hinge joint two and stress deformation energy storage and it can make connecting rod along the vertical direction always and have The Flexible element of upwards thrust, the Flexible element and connecting rod are hinged and form hinge joint three, and the hinge joint one is located at hinged The top of point three, the hinge joint two is between hinge joint one and hinge joint three and hinge joint two can be in hinge joint one and hinge The two sides of three line of contact swing back and forth.

Vacuum circuit breaker includes vacuum interrupter and the insulated pull rod that is connected with the moving contact of vacuum interrupter, this switching The drive rod of driving device and insulated pull rod are connected, and insulated pull rod is enable to control moving contact and static contact in vacuum extinction room It connects and separates, realize the switching movement of vacuum circuit breaker.Acceleration mechanism has connecting rod always by Flexible element to prolong it The thrust is transmitted on drive rod by thrust axially upwards, connecting rod again by connecting lever, passes through matching for connecting rod, connecting lever and drive rod Close, enable Flexible element open a sluice gate or making process in first energy storage discharge potential energy again and accelerate the movement of drive rod.When combined floodgate, Drive rod is located at minimum point and moves up, so that connecting lever be driven to swing, connecting lever drives connecting rod swing again, makes hinge joint two from remote One side oscillation of line from one side of drive rod to hinge joint one and hinge joint three, while Flexible element compressive deformation energy storage, work as hinge After contact two crosses the line of hinge joint one and hinge joint three, Flexible element start stretching, extension release potential energy and drive hinge joint two after Continue to the movement of drive rod side, connecting lever is made to provide upward thrust to drive rod, to improve the movement speed of drive rod, improves Combined floodgate efficiency, and after in-place closing, acceleration mechanism can continue to provide upward thrust to drive rod, make in vacuum extinction room Moving contact and static contact recline closer, the conductive stability between moving contact and static contact is more preferable；Similarly, when opening a sluice gate, add Fast mechanism discharges after equally capable of playing first energy storage and drive rod is accelerated to move down, and separates moving contact and static contact faster, And after opening a sluice gate in place, acceleration mechanism still provides downward thrust to drive rod, is in vacuum circuit breaker steadily and opens a sluice gate State.Especially when switching driving device uses permanent-magnet manipulating mechanism and repulsive force mechanism, due to driving the first of drive rod movement The larger and movement with drive rod of beginning active force and become smaller rapidly, when drive rod is located at the middle position of upper and lower two coil, Driving mechanism is weaker to the active force of drive rod, and Flexible element starts to discharge potential energy just to supplement the effect to drive rod at this time Power, the whole driving force for being subject to drive rod is more stable, and vacuum circuit breaker is made to be averaged switching speed faster.

In the switching driving device of above-mentioned vacuum circuit breaker, the connecting lever include articulated section, the first swing arm and Second swing arm, first swing arm and the second swing arm are connected with articulated section and form angle, the hinge joint one In on articulated section, the hinge joint two is located on the first swing arm, prolongs its length direction on second swing arm and is provided with sliding slot, Be installed with trundle on the drive rod, the trundle be articulated in sliding slot and can length direction along the chute slide.It turns Second swing arm of arm is flexibly connected by sliding slot with the trundle on drive rod, and connecting lever is made to drive drive rod mobile or drive rod When driving connecting lever mobile, trundle can opposite sliding slot it is mobile, make between connecting lever and drive rod only generation along drive rod axis to Active force avoids stuck between connecting lever and drive rod.

In the switching driving device of above-mentioned vacuum circuit breaker, the connecting lever include articulated section, the first swing arm and Second swing arm, first swing arm and the second swing arm are connected with articulated section and form angle, the hinge joint one In on articulated section, the hinge joint two is located on the first swing arm, and the drive rod is installed with connection far from one end of articulated section It covers, there is the sliding groove radially extended along drive rod on the connector sleeve, be installed with connecting pin on second swing arm, it is described Connecting pin is articulated in sliding groove and can slide along the length direction of sliding groove.In this way, equally can be realized swing and driving Transmission between bar avoids stuck.

In the switching driving device of above-mentioned vacuum circuit breaker, between first swing arm and the second swing arm Corner dimension is 80~135 °.In the angular range, the transmitting of power is more smooth between drive rod and connecting lever, i.e., switching accelerates More stable more smooth, acceleration effect is more preferable.

In the switching driving device of above-mentioned vacuum circuit breaker, the acceleration mechanism is multiple, multiple acceleration Mechanism is uniformly distributed around the axial line of drive rod.In this way, resultant force radial suffered by drive rod is zero, drive rod is avoided to open and close It deforms or is displaced during lock, keep the kinematic accuracy of drive rod higher, movement is more smooth, i.e., switching speed is faster.

In the switching driving device of above-mentioned vacuum circuit breaker, the Flexible element includes guide holder, the guiding Seat is cylindrical and is vertically connected with bracket, and the upper surface of guide holder is provided with the first pilot hole, first guiding along axial direction The sliding block hinged with connecting rod is slidably connected in hole, being additionally provided in first pilot hole, which has sliding block always, moves up The spring of gesture.In this way, sliding block steadily can supply upward thrust to connecting rod.

In the switching driving device of above-mentioned vacuum circuit breaker, the bottom wall of first pilot hole is provided with the second guiding Hole, the sliding block include the sliding part being slidably matched with the first pilot hole and the guide rod that is slidably matched with the second pilot hole.It is sliding Block and guide holder pass through the dual cooperation of sliding part and the first pilot hole and guide rod and the second pilot hole, make the movement of sliding block Precision is higher,

In the switching driving device of above-mentioned vacuum circuit breaker, it is additionally provided with adjustment seat in first pilot hole, institute It states and is threaded with several adjusting bolts on the bottom wall of the first pilot hole, the front end for adjusting bolt is protruded into the first pilot hole Be set on guide rod with adjustment seat against, the spring pocket and both ends respectively with sliding part and adjustment seat against.By adjusting The position for saving seat, is capable of the pretightning force of adjustment spring.

In the switching driving device of above-mentioned vacuum circuit breaker, oleo cushion is additionally provided with below the drive rod Device, the oil buffer and drive rod are located on same axis.In this way, drive rod can be when opening a sluice gate in place and oleo cushion Device is against making drive rod reduction of speed and stop, avoiding drive rod and other component that rigid collision or intense impact occurs and causes to damage It is bad.

In the switching driving device of above-mentioned vacuum circuit breaker, the driving mechanism is repulsive force mechanism or permanent magnetic operating Mechanism.Using repulsive force mechanism or permanent-magnet manipulating mechanism, switching driving device is easier to realize automation, and operation is easier, and opens Combined floodgate reaction speed is faster.

Compared with prior art, the utility model has the advantage that

1, the utility model is cooperated by connecting lever, connecting rod and elastic element, and Flexible element is enable to open a sluice gate and close a floodgate Potential energy can be discharged after first deformation and energy storage in the process, accelerate the shifting degree of hastening of drive rod, act the switching of drive rod more Stablize, continuity is more preferable, averagely opens a sluice gate speed faster.

2, the utility model open a sluice gate or in-place closing after, connecting lever be still able to maintain to drive rod apply axial action Power makes drive rod stably keep current state, and when opening a sluice gate state, drive rod will not be moved up voluntarily, and when "on" position, vacuum The indoor moving contact of arc extinguishing and static contact are able to maintain stabilization and recline.

3, Flexible element is uniformly distributed around the axial line of drive rod, and making drive rod, stress is more balanced radially, makes to connect Spindle is more precisely more smooth axially movable.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of vacuum circuit breaker；

Fig. 2 is the structural schematic diagram of switching driving device；

Fig. 3 is the enlarged drawing in the portion a in Fig. 2；

Fig. 4 is that acceleration mechanism opens a sluice gate structural schematic diagram under state

Fig. 5 is the structural schematic diagram in acceleration mechanism making process；

Fig. 6 is the structural schematic diagram under acceleration mechanism "on" position；

Fig. 7 is the structural schematic diagram of connecting lever；

Fig. 8 is another connection type of connecting lever and drive rod.

In figure, 1, pedestal；2, column unit；21, tank body, 22, vacuum interrupter；23, insulated pull rod；24, connecting terminal； 25, connecting tube；26, outlet conductive pole；3, switching driving device；4, bracket；41, partition；42, column；43, fixed link；5, Driving mechanism；51, drive rod；52, repulsion dish；53, closing coil；54, opening coil；55, connector sleeve；551, trundle； 552, interconnecting piece；553, sliding groove；6, acceleration mechanism；61, connecting lever；611, articulated section；611a, hinge joint one；612, the first pendulum Swing arm；612a, hinge joint two；613, the second swing arm；613a, sliding slot；613b, connecting pin；62, connecting rod；621, hinge joint three； 63, Flexible element；631, guide holder；631a, the first pilot hole；631b；Second pilot hole；632, sliding block；632a, sliding part； 632b, guide rod；633, spring；634, adjustment seat；635, bolt is adjusted；7, oil buffer.

Specific embodiment

It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these examples.

Embodiment one

As shown in Figure 1, this vacuum circuit breaker is 363KV super-pressure vacuum circuit breaker with double breaks, this vacuum circuit breaker includes Pedestal 1, two columns, 42 unit 2 being arranged at intervals on pedestal 1, each column unit 2 include tank body 21, vacuum interrupter 22 and switching driving device 3, two tank bodies 21 are hollow structure and are connected to by connecting tube 25, vacuum interrupter 22 and open Combined floodgate driving device 3 is respectively positioned in tank body 21, and the upper end of tank body 21 is provided with for the connecting terminal 24 with circuit connection, wiring Terminal 24 is connect with the static contact of 22 upper end of vacuum interrupter, and the moving contact of two 22 lower ends of vacuum interrupter passes through the company of being threaded through Outlet conductive pole 26 in adapter tube 25 connects, insulation of the moving contact of each 22 lower end of vacuum interrupter also by being vertically arranged Pull rod 23 is connect with switching driving device 3, and two switching driving devices 3 can be driven simultaneously by the control of control device Two insulated pull rods 23 move up and down, and make the static contact and moving contact in each vacuum interrupter 22 while reclining or separating, i.e., It realizes the combined floodgate of vacuum circuit breaker or opens a sluice gate.

As shown in Fig. 2, this switching driving device 3 includes bracket 4, driving mechanism 5 and acceleration mechanism 6.Bracket 4 include from Three layers of partition 41 that top to bottm is successively spaced apart, column 42 is connected respectively between adjacent partition 41.Driving mechanism 5 is fixedly arranged on The top surface of top layer's partition 41, including the drive rod 51 being vertically arranged, the upper end of drive rod 51 and insulated pull rod 23 are connected, lower end It is connect with acceleration mechanism 6, the middle part of drive rod 51 is installed with the repulsion dish 52 around drive rod 51, and repulsion dish 52 are using magnetic resistance gold Belong to material to be made, is installed with opening coil 54 and closing coil 53,54 He of opening coil above and below repulsion dish 52 respectively There is certain spacing between closing coil 53, generated between repulsion dish 52 when opening coil 54 or closing coil 53 being made to be powered The vortex repulsion generated by flux change makes repulsion dish 52 that drive rod 51 be driven to move up and down, to control vacuum interrupter 22 Connection and disconnection.Acceleration mechanism 6 is located at the lower part of bracket 4, including connecting lever 61, connecting rod 62 and Flexible element 63, connecting lever 61 and branch Frame 4 is hinged and is formed with one 611a of hinge joint, and one end of connecting lever 61 is connect with drive rod 51, the other end and connecting rod 62 of connecting lever 61 One end it is hinged and form interface point two, the other end and Flexible element 63 of connecting rod 62 are hinged and form hinge joint 3 621, elasticity Unit 63, which can be pressurized, to be occurred flexible deformation with energy storage and connecting rod 62 is made to have upward thrust always, and two 612a of hinge joint is located at Between one 611a of hinge joint and hinge joint 3 621 and two 612a of hinge joint can be around one 611a of hinge joint and hinge joint 3 621 Line swings, and the drive rod 51 can drive the swing of connecting lever 61 or connecting lever 61 that drive rod 51 is driven to move up and down, and makes to add Fast mechanism 6 open a sluice gate or making process in can first energy storage potential energy is discharged to movement to accelerate drive rod 51 again, make to drive The average speed of bar 51 improves, to improve switching speed.

Specifically, connecting lever 61 includes articulated section 611, the first swing arm 612 and the second swing as shown in Fig. 2, Fig. 4, Fig. 7 Arm 613, first swing arm 612 and the second swing arm 613 are connected with articulated section 611 and form angle, the angle it is big It is small between 80~135 °.Articulated section 611 is hinged with the fixed link 43 being installed on partition 41 and forms above-mentioned hinge joint one The front end of 611a, the first swing wall are hinged with connecting rod 62 and form interface point two, open along its length on the second swing arm 613 There is sliding slot 613a, the lower end of drive rod 51 is fixed with connector sleeve 55, and trundle 551 is installed on connector sleeve 55, and trundle 551 is cut with scissors It is connected in sliding slot 613a and is capable of the length direction sliding of 613a along the chute.In this way, connecting lever 61 being capable of band around the swing of interface point one Dynamic drive rod 51 moves up and down or drive rod 51 moves up and down and is able to drive the swing of connecting lever 61, avoids connecting lever 61 and drive rod 51 It is stuck.

As shown in figure 3, Flexible element 63 includes guide holder 631, sliding block 632 and spring 633, guide holder 631 is cylindrical And it is vertically fixed on the side-lower of drive rod 51, it is provided with the first pilot hole 631a along its axial direction on the upper surface of guide holder 631, Sliding block 632 is located in the first pilot hole 631a and so that it is had the trend moved up always by spring 633.Sliding block 632 wraps Include sliding part 632a and guide rod 632b, sliding part 632a is in match cylindric of the first pilot hole 631a shape and with the One pilot hole 631a is slidably matched, and one end of sliding part 632a and connecting rod 62 are hinged, and guide rod 632b is another with sliding part 632a's One end integrally connected is simultaneously also provided with the second pilot hole in the axially extending of sliding part 632a, the bottom wall of the first pilot hole 631a 631b, guide rod 632b are protruded into the second pilot hole 631b and are slidably matched with the second pilot hole 631b, enable 632 edge of sliding block Guide holder 631 slides axially and guarantees to slide precision.Adjustment seat 634, the first pilot hole are additionally provided in first pilot hole 631a Several adjusting bolts 635 are also threaded on the bottom wall of 631a, these adjust bolt 635 around the axle center of guide holder 631 Line is uniformly distributed, and the front end for adjusting bolt 635 is protruded into the first pilot hole 631a with adjustment seat 634 against spring 633 is arranged In on guide rod 632b and both ends respectively with sliding part 632a and adjustment seat 634 against by adjusting the adjusting adjustment seat of bolt 635 634 height is capable of the pretightning force of adjustment spring 633, the acceleration effect of acceleration mechanism 6 is made to reach best.

In this way, when switching driving device 3 works, as shown in figure 4, vacuum circuit breaker insulate in state is opened a sluice gate at this time Pull rod 23 is located at minimum point, and one end that the second swing arm 613 cooperates with trundle 551 is also at minimum point, while second is hinged It puts positioned at the right side of 3 621 line of one 611a of hinge joint and hinge joint, i.e. the second hinge joint position farthest from drive rod 51, this When sliding block 632 be also at highest point；When closing coil 53 be powered and by repulsion driving repulsion dish 52 when, drive rod 51 gradually to Upper movement makes two 612a of hinge joint gradually toward driving as shown in figure 5, the second swing arm 613 also follows drive rod 51 to be swung up 51 side of bar is mobile, and connecting rod 62 pushes sliding block 632 to move down, and makes 633 deformation and energy storage of spring；With repulsion dish 52 and closing line Distance increases between circle 53, and the repulsion that closing coil 53 applies repulsion dish 52 is gradually reduced, as shown in fig. 6, working as hinge joint two When 612a crosses the line of one 611a of hinge joint and hinge joint 3 621, spring 633 starts that sliding block 632 is pushed to move up, and makes to connect Bar 62 pushes connecting lever 61 to swing, while the second swing arm 613 applies upward active force to drive rod 51, makes itself and closing coil 53 repulsion pushes drive rod 51 to move up jointly, to improve closing speed, when vacuum breaker closing in place after, drive rod 51 are located at highest point, and the second swing arm 613 still applies upward active force to drive rod 51, make dynamic in vacuum interrupter 22 Contact and static contact are kept closely against improving its conductive stability.Similarly, when opening a sluice gate, acceleration mechanism 6 can equally play elder generation It is discharged after energy storage and drive rod 51 is accelerated to move down, separate moving contact and static contact faster.

In the present embodiment, Flexible element 63 is 3, certainly in practical applications may be other quantity, these bullets Property unit 63 be uniformly distributed around drive rod 51, the resultant force zero for being subject to drive rod 51 radially is simultaneously formed along drive rod 51 Axial guiding role, is axially moveable drive rod 51 more smooth, switching speed is faster.

As shown in figure 3, the bottom of bracket 4 is fixedly provided with oil buffer 7, oil buffer 7 is located under drive rod 51 Side and keep certain spacing with drive rod 51, enable oil buffer 7 after drive rod 51 opens a sluice gate to move down with its against, from And reduce the impact force of drive rod 51.

It of courses, the switching driving device 3 in the present embodiment can also make in other single break vacuum circuit breakers With.

Embodiment two

As shown in figure 8, the technical solution of the present embodiment and the technical solution of embodiment one are essentially identical, difference exists In, driving mechanism 5 is the permanent-magnet manipulating mechanism using electromagnet principle in the present embodiment, and in the present embodiment, the of connecting lever 61 The fixed connecting pin 613b in the one end of two swing arms 613 far from articulated section 611 has edge with drive rod 51 on connected connector sleeve 55 The interconnecting piece 552 that drive rod 51 radially extends is provided with the sliding groove 553 radially extended along drive rod 51 on interconnecting piece 552, connects Pin 613b is articulated in the sliding groove 552 and can slide along the length direction of sliding groove 552.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Although pedestal 1, column unit 2, vacuum interrupter 22, insulated pull rod 23, connecting terminal is used more herein 24, bracket 4, driving mechanism 5, drive rod 51, connector sleeve 55, trundle 551, acceleration mechanism 6, connecting lever 61, articulated section 611, One swing arm 612, connecting rod 62, hinge joint 3 621, Flexible element 63, guide holder 631, sliding block 632, sliding part 632a, guide rod The terms such as 632b, spring 633, adjustment seat 634, oil buffer 7, but it does not exclude the possibility of using other terms.It uses These terms are used for the purpose of being more convenient to describe and explain the essence of the utility model；It is construed as any additional Limitation be all contrary to the spirit of the present invention.

Claims (10)

1. a kind of switching driving device of vacuum circuit breaker, including bracket (4), driving mechanism (5) and acceleration mechanism (6), institute Stating has the drive rod (51) being vertically arranged on driving mechanism (5), the drive rod (51) can be used in combination in lower movement vertically In the switching for realizing vacuum circuit breaker, which is characterized in that the acceleration mechanism (6) includes one end and bracket (4) hinged simultaneously shape At having hinge joint one (611a) and connecting lever (61) that the other end is connect with drive rod (51), hinged with connecting lever (61) and formed hinged The connecting rod (62) of two (612a) of point and stress deformation energy storage and it can make connecting rod (62) always with upwards thrust along the vertical direction Flexible element (63), the Flexible element (63) and connecting rod (62) are hinged and form hinge joint three (621), the hinge joint one (611a) is located at the top of hinge joint three (621), and the hinge joint two (612a) is located at hinge joint one (611a) and hinge joint three (621) between and hinge joint two (612a) can carry out backswing in the two sides of hinge joint one (611a) and hinge joint three (621) line It is dynamic.

2. the switching driving device of vacuum circuit breaker according to claim 1, which is characterized in that connecting lever (61) packet Articulated section (611), the first swing arm (612) and the second swing arm (613) are included, first swing arm (612) and second swing Arm (613) is connected with articulated section (611) and forms angle, and the hinge joint one (611a) is located on articulated section (611), described Hinge joint two (612a) is located on the first swing arm (612), prolongs its length direction on second swing arm (613) and is provided with sliding slot (613a) is installed with trundle (551) on the drive rod (51), and the trundle (551) is articulated in sliding slot (613a) simultaneously Can along the chute (613a) length direction sliding.

3. the switching driving device of vacuum circuit breaker according to claim 1, which is characterized in that connecting lever (61) packet Articulated section (611), the first swing arm (612) and the second swing arm (613) are included, first swing arm (612) and second swing Arm (613) is connected with articulated section (611) and forms angle, and the hinge joint one (611a) is located on articulated section (611), described Hinge joint two (612a) is located on the first swing arm (612), is installed with connector sleeve (55), the connection on the drive rod (51) There is the sliding groove (553) radially extended along drive rod (51), second swing arm (613) is far from articulated section on set (55) (611) one end is installed with connecting pin (613b), and the connecting pin (613b) is articulated in sliding groove (553) and can be along sliding The length direction of slot (553) slides.

4. the switching driving device of vacuum circuit breaker according to claim 2 or 3, which is characterized in that first pendulum Corner dimension between swing arm (612) and the second swing arm (613) is 80~135 °.

5. the switching driving device of vacuum circuit breaker according to claim 1 or 2 or 3, the acceleration mechanism (6) is more A, axial line of multiple acceleration mechanisms (6) around drive rod (51) is uniformly distributed.

6. the switching driving device of vacuum circuit breaker according to claim 5, which is characterized in that the Flexible element It (63) include guide holder (631), the guide holder (631) is cylindrical and is vertically connected with bracket (4), guide holder (631) Upper surface be provided with the first pilot hole (631a) along axial direction, slidably connects in first pilot hole (631a) and connecting rod (62) Hinged sliding block (632), being additionally provided in first pilot hole (631a), which has sliding block (632) always, moves up trend Spring (633).

7. the switching driving device of vacuum circuit breaker according to claim 6, which is characterized in that first pilot hole The bottom wall of (631a) is provided with the second pilot hole (631b), and the sliding block (632) includes being slidably matched with the first pilot hole (631a) Sliding part (632a) and the guide rod (632b) that is slidably matched with the second pilot hole (631b).

8. the switching driving device of vacuum circuit breaker according to claim 7, which is characterized in that first pilot hole It is additionally provided with adjustment seat (634) in (631a), is threaded with several adjusting bolts on the bottom wall of first pilot hole (631a) (635), the front end for adjusting bolt (635) is protruded into the first pilot hole (631a) with adjustment seat (634) against the spring (633) be sheathed on guide rod (632b) and both ends respectively with sliding part (632a) and adjustment seat (634) against.

9. the switching driving device of vacuum circuit breaker according to claim 8, which is characterized in that the drive rod (51) Lower section be additionally provided with oil buffer (7), the oil buffer (7) and drive rod (51) are located on same axis.

10. the switching driving device of vacuum circuit breaker according to claim 1 or 2 or 3, which is characterized in that the drive Motivation structure (5) is repulsive force mechanism or permanent-magnet manipulating mechanism.