CN109148215B - Breaker - Google Patents

Abstract

The invention discloses a kind of breakers, including spout, the first connector of master end, the second connector of master end, insulated connecting piece, arc-chutes mounting bracket, it insulated pull rod and is mounted in arc-chutes mounting bracket, and the protective plate for the insulating segment of insulated pull rod to be isolated with arc-chutes inner cavity, insulated connecting piece both ends are connect with the first connector of master end and the second connector of master end respectively, the through hole shape cavity installed for spout is equipped in insulated connecting piece, spout carries out limiting coaxial fixation with insulated connecting piece by the first connector of master end and the second connector of master end, the end of protective plate and insulated pull rod snug engagement.The service life of breaker provided by the present application extends.

Description

Breaker

Technical field

The present invention relates to switching device technical field, in particular to a kind of breaker.

Background technique

The insulated pull rod of breaker is located in the dynamic lateral support structure of breaker, and insulated pull rod main function is by mechanism Power passes to arc-chutes, while the electric energy of arc-chutes being isolated with shell, prevents short trouble and brings danger.

Opening and acting for breaker is provided by external mechanism, the power of mechanism by 220v power voltage supply energy storage, breaker Arc-chutes bear high voltage, therefore the power of mechanism offer is passed to the arc-chutes of breaker by insulated pull rod, which draws Bar will have higher intensity to bear the high-speed motion of arc-chutes, while insulated pull rod requires to be dielectrically separated from, and prevents Outside the high voltage transfer that arc-chutes are born to breaker.Specifically, insulated pull rod includes insulating segment and is arranged in insulating segment two The metal segments at end.

The fracture transmission device of double acting switch equipment is for completing the fortune of two different potentials in breaker at arc extinguishing unit Dynamic component connection, the driving link of fracture transmission device provide power, and driven member is driven by fracture transmission device and carries out corresponding sports. Spout is generallyd use as the connector in fracture transmission device, by the transmission device of spout connection two sides.

When breaker works, the high-temperature gas of arc-chutes is easy to flow to the insulating segment of insulated pull rod in internal cavity, absolutely Edge pull rod working environment is in the region of thermal current confusion, is easy so that failure of insulation, causes short trouble, simultaneously because existing The vent material mechanical property that technology uses is poor, so the connection by spout as double acting switch device interrupt mouth transmission device Part, Mechanical Reliability is low, leads to the reduced service life of breaker.

Therefore, the service life for how extending breaker is those skilled in the art's technical problem urgently to be resolved.

Summary of the invention

The object of the present invention is to provide a kind of breaker, the service life of the breaker extends.

To achieve the above object, the present invention provides a kind of breaker, including spout, the first connector of master end, master end It second connector, insulated connecting piece, arc-chutes mounting bracket, insulated pull rod and is mounted in the arc-chutes mounting bracket, and Protective plate for the insulating segment of the insulated pull rod to be isolated with arc-chutes inner cavity, the insulated connecting piece both ends respectively with institute It states the first connector of master end to connect with second connector of master end, is equipped in the insulated connecting piece and pacifies for the spout The through hole shape cavity of dress, the spout and the insulated connecting piece pass through first connector of master end and the master end the Two connectors carry out limiting coaxial fixation, the end of the protective plate and the insulated pull rod snug engagement.

Preferably, slave end connector and connect for the second connector of master end power to be sent to the slave end The contact transmission device of fitting；

The contact transmission device includes connecting rod, connecting plate and connecting plate transmission component, the connecting rod and the master end the The connection of two connectors, the connecting plate transmission component include the first connecting plate and second connecting plate hinged with first connecting plate, described One end on first connecting plate far from second connecting plate is hinged by the first rotational pin and the connecting rod, remote on second connecting plate One end from first connecting plate is hinged by the second rotational pin and slave end connector, and the connecting plate is equipped with confession described the The first mobile pilot hole of one rotational pin and second pilot hole mobile for second rotational pin.

Preferably, the connecting plate transmission component further includes limition orientation part, and the limition orientation part and the connecting plate are solid Fixed connection, first connecting plate are equipped with the guide chute that can be moved along the limition orientation part, limition orientation part position Between first connecting plate and the second connecting plate hinge joint and first rotational pin, the connecting plate is equipped with for holding Receive the 4th pilot hole of slave end connector, the 4th pilot hole, first pilot hole, second pilot hole and third The setting of pilot hole centerline parallel.

Preferably, the connecting plate transmission component is two, and two connecting plate transmission components are arranged in the connecting plate Opposite sides, the connecting rod are two, and two connecting rods are corresponded with two first connecting plates.

Preferably, the angle of the first connecting plate and the first pilot hole is a；

When the separating brake angle initial state a is less than 45 °, when separating brake described in from moving arcing contact and second connector of master end First counter motion after movement in the same direction；

When the separating brake angle initial state a is greater than 45 °, when separating brake simultaneously from moving arcing contact and second connector of master end Counter motion；

First connecting plate changes with the angle a during rotation, and first rotational pin reaches X point transmission no-load voltage ratio maximum, Wherein X point is that first rotational pin is moved to apart from the limition orientation part in first pilot hole apart from shortest position It sets, transmission no-load voltage ratio formula is the formula for being driven no-load voltage ratio are as follows:Wherein n is no-load voltage ratio, and L is first company Plate length, S are the distance for limiting guide part to X point.

Preferably, further include slave end connector and for by the second connector of master end power be sent to it is described from The contact transmission device of dynamic side connector, the contact transmission device include:

Gear set, the gear set include the first gear and second gear being fixedly and coaxially connected, the first gear and The number of teeth of the second gear is different；

Guide plate, the first gear and the second gear are installed on the guide plate；

Pull rod guide pin；

First rack gear, the pull rod guide pin are mounted on first rack gear, first rack gear and first tooth Wheel engagement；

Pull rod, the pull rod are equipped with and are able to drive the curved groove that the first rack gear is moved relative to the pull rod, and pull rod is led It can be slided to pin along the curved groove；

And the second rack gear engaged with the second gear, second rack gear are parallel with the pull rod direction of motion.

Preferably, the pull rod is connect with second connector of master end, and second rack gear and the slave end connect Fitting connection, the number of teeth of the first gear are less than the second gear) the number of teeth；

When being located at closing position, the pull rod guide pin is located at one end on the curved groove far from the gear set；

When being located at open position, the pull rod guide pin is located at one end on the curved groove close to the gear set.

It preferably, further include expansible chamber device, the expansible chamber device includes piston, piston rod and expanding chamber, described swollen Swollen room is mounted on the outside of the piston rod, and the piston rod is equipped with the first non-return valve that can be connected to the expanding chamber, when When the inner cavity air pressure of the piston rod is greater than the expanding chamber air pressure, first non-return valve is opened；

The piston rod is equipped with relief hole, and when the piston rod is located at closed state, the relief hole, which is located at, is closed State；When the piston rod in the open state, the relief hole is located at opening state；When the relief hole is located at open shape When state, first non-return valve is located at closed state.

Preferably, the relief hole is two, and two relief holes are oppositely disposed in the opposite sides of the piston rod, When the piston rod is located at closed state, the inner surface palette of the relief hole and the piston；When the piston rod In the open state, the relief hole is located on the outside of the piston.

It preferably, further include quiet main contact, dynamic main contac, insulation supporting cylinder, the insulation supporting cylinder includes intermediate insulation Support tube and the dynamic side metal support inserts and quiet side metal support inserts that intermediate insulation support tube both ends are set, it is described Quiet main contact is fixedly connected on the quiet side metal support inserts, the dynamic main contac and the dynamic side metal support inserts electricity Connection, and the dynamic main contac is slidably connected with the dynamic side metal support inserts.

In the above-mentioned technical solutions, breaker provided by the invention includes spout, the first connector of master end, master end It two connectors, insulated connecting piece, arc-chutes mounting bracket, insulated pull rod and is mounted in arc-chutes mounting bracket, and for will The protective plate that the insulating segment of insulated pull rod is isolated with arc-chutes inner cavity, insulated connecting piece both ends respectively with the first connector of master end It is connected with the second connector of master end, the through hole shape cavity installed for spout is equipped in insulated connecting piece, spout and insulation connect Part carries out limiting coaxial fixation by the first connector of master end and the second connector of master end, and the end of protective plate and insulation are drawn Bar snug engagement.When installing fracture transmission device, spout is mounted on through hole shape cavity, insulated connecting piece and spout are logical The first connector of master end is crossed to connect with the second connector of master end.

As can be seen from the above description, in breaker provided by the present application, by arc-chutes mounting bracket install with The protective plate of insulated pull rod snug engagement reduces the insulation of the thermal current and impurity damage insulated pull rod inside arc-chutes Section, and then generate the situation of short circuit.By being arranged fracture transmission device on the outside of spout, spout is mounted on through hole shape cavity, main Dynamic the first connector of side and the second connector of master end are connect with driving link and slave end transmission device respectively, are driven by fracture Device realizes transmission connection, and the first connector of master end is connected with the second connector of master end by insulated connecting piece, and spout is not The driving force in motion process is born again, and spout is avoided to withstand forces larger the case where being easily damaged, it is therefore, provided by the present application disconnected The service life of road device extends.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis The attached drawing of offer obtains other attached drawings.

Fig. 1 is the partial structural diagram that breaker provided by the embodiment of the present invention is located at "on" position；

Fig. 2 is the partial structural diagram that breaker provided by the embodiment of the present invention is located at gate-dividing state；

Fig. 3 is the structural schematic diagram of insulated pull rod provided by the embodiment of the present invention；

Fig. 4 is the installation site figure of protective plate provided by the embodiment of the present invention；

Fig. 5 is the structural schematic diagram of protective plate provided by the embodiment of the present invention；

Fig. 6 is the structural schematic diagram of the fracture drive position of breaker provided by the embodiment of the present invention；

Fig. 7 is the installation site figure of insulated connecting piece provided by the embodiment of the present invention；

Fig. 8 is the structural schematic diagram of the first connector of master end provided by the embodiment of the present invention；

Fig. 9 is the structural schematic diagram of the second connector of master end provided by the embodiment of the present invention；

Figure 10 is a kind of structural schematic diagram of contact transmission device of breaker provided by the embodiment of the present invention；

Figure 11 is the installation site figure of contact transmission device shown in Fig. 10；

Figure 12 is the structural schematic diagram of contact transmission device shown in Figure 10；

Figure 13 is a kind of structural schematic diagram of connecting plate provided by the embodiment of the present invention；

Figure 14 is the side view of connecting plate shown in Figure 13；

Figure 15 is the structural schematic diagram of another kind connecting plate provided by the embodiment of the present invention；

Figure 16 is the side view of connecting plate shown in Figure 15；

Figure 17 is the structural schematic diagram of connecting rod provided by the embodiment of the present invention；

Figure 18 is the structural schematic diagram of slave end connector provided by the embodiment of the present invention；

Figure 19 is the structural schematic diagram of the first connecting plate provided by the embodiment of the present invention；

Figure 20 is the structural schematic diagram of the second connecting plate provided by the embodiment of the present invention；

Figure 21 is the structural schematic diagram of the active sidepiece part in breaker provided by the embodiment of the present invention；

Figure 22 is structural schematic diagram when the first rotational pin provided by the embodiment of the present invention is located at X point；

Figure 23 is the stroke curve figure of master end connector and slave end connector provided by the embodiment of the present invention；

Figure 24 is the structural schematic diagram of another kind contact transmission device provided by the embodiment of the present invention；

Figure 25 is the portion the A enlarged drawing of contact transmission device shown in Figure 24；

Figure 26 is the local installation site figure of breaker shown in Figure 24；

Structural schematic diagram when Figure 27 is breaker closing shown in Figure 24 provided by the embodiment of the present invention；

Structural schematic diagram when Figure 28 is breaker open operation shown in Figure 24 provided by the embodiment of the present invention；

Figure 29 provides the trip map of the first driving component and driven subassembly by the embodiment of the present invention；

Figure 30 provides the trip map of second of driving component and driven subassembly by the embodiment of the present invention；

Figure 31 provides the trip map of the third driving component and driven subassembly by the embodiment of the present invention；

Figure 32 provides the trip map of the 4th kind of driving component and driven subassembly by the embodiment of the present invention；

Figure 33 provides the trip map of the 5th kind of driving component and driven subassembly by the embodiment of the present invention；

Figure 34 provides the trip map of the 6th kind of driving component and driven subassembly by the embodiment of the present invention；

Figure 35 is the structural schematic diagram of expansible chamber device provided by the embodiment of the present invention；

Figure 36 is the structural schematic diagram of piston rod provided by the embodiment of the present invention；

Figure 37 is that the piston rod of expansible chamber device provided by the embodiment of the present invention is in the structural schematic diagram of closed state；

Figure 38 is that the piston rod of expansible chamber device provided by the embodiment of the present invention shows in the structure for preparing opening state It is intended to；

Figure 39 is the piston rod of expansible chamber device provided by embodiment of the present invention structural schematic diagram in the open state；

Figure 40 is the installation site figure of fracture contact apparatus provided by the embodiment of the present invention；

Figure 41 is the partial structural diagram of fracture contact apparatus provided by the embodiment of the present invention.

Wherein in Fig. 1-41: 1- mechanism inputs connecting lever；

2- contact transmission device, 21- connecting rod, 22- connecting plate, the first pilot hole of 221-, the second pilot hole of 222-, 223- Three pilot holes, the 4th pilot hole of 224-, the first rotational pin of 23-, the first connecting plate of 24-, 241- guide chute, the second connecting plate of 25-, The second rotational pin of 26-, 27- limition orientation part；

28- pull rod, 281- curved groove, 29- guide plate, the first rack gear of 291-, the first rack gear of 2911- limiting slot, 292- Two rack gears, the second rack gear of 2921- limiting slot, the second rack gear of 293- spacer pin, 294- pull rod spacer pin, the limit of the first rack gear of 295- Pin, 296- pull rod guide pin, 297- pull rod limiting slot, 298- first gear, 299- second gear；

3- slave end connector, 31- guiding connection device, 32- contact base, 33- are outside moving arcing contact, 4- arc-chutes, 5- Shell, 6- insulated support, 7- insulated pull rod, the first metal insert of 71-, 72- insulating cylinder, the second metal insert of 73-, 8- protection Plate, 81- mounting hole, 9- spout, 10- insulated connecting piece, 101- gas vent, 11- arc-chutes mounting bracket, 12- driving link, 13- The first connector of master end, the master end 131- arcwall face, the first retention bead of 132-, 133- spout limited step, the master end 14- Second connector, 141- slave end arcwall face, the second retention bead of 142-, 15- transmission connection ring, 16- active arcing contact, 17- Air cylinder, 18- piston rod, 181- relief hole, 191- plenum chamber, 192- expanding chamber, the first non-return valve of 193-, the second check of 194- Valve, 195- third non-return valve, 196- relief valve, 197- piston, 198- static arc contact；

201- moves the quiet side metal support inserts of side metal support inserts, 202-, 203- moves side shield cover, 204- intermediate insulation The quiet side shield cover of support tube, 205-, 206- spring contact,.

Specific embodiment

Core of the invention is to provide a kind of breaker, and the service life of the breaker extends.

In order to make those skilled in the art more fully understand technical solution of the present invention, with reference to the accompanying drawing and embodiment party The present invention is described in further detail for formula.

Please refer to figs. 1 to 41, and in a specific embodiment, the breaker that the specific embodiment of the invention provides includes Spout 9, the first connector of master end 13, the second connector of master end 14, insulated connecting piece 10, arc-chutes mounting bracket 11, absolutely It edge pull rod and is mounted in arc-chutes mounting bracket 11, and for the insulating segment of insulated pull rod 7 to be isolated with 4 inner cavity of arc-chutes Protective plate 8,10 both ends of insulated connecting piece are connect with the first connector of master end 13 and the second connector of master end 14 respectively, insulation The through hole shape cavity installed for spout 9 is equipped in connector 10, spout 9 and insulated connecting piece 10 pass through the first connector of master end 13 and the second connector of master end 14 limit coaxial fixation, the end of protective plate 8 and 7 snug engagement of insulated pull rod. When installing fracture transmission device, spout 9 is mounted on through hole shape cavity, the first connector of master end 13 and driving link 12 are fixed Connection, insulated connecting piece 10 are connect with spout 9 by the first connector of master end 13 and the second connector of master end 14.

As can be seen from the above description, in breaker provided by the present application, by being installed in arc-chutes mounting bracket 11 With the protective plate 8 of 7 snug engagement of insulated pull rod, thermal current and impurity damage insulated pull rod 7 inside arc-chutes are reduced Insulating segment, and then generate the situation of short circuit.By being arranged insulated connecting piece 10 on the outside of spout 9, spout 9 is mounted on through hole shape chamber Body, the first connector of master end 13 and the second connector of master end 14 are connect with driving link 12 and slave end transmission device respectively, The first connector of master end 13 and the second connector of master end 14 are connected by insulated connecting piece 10, and spout 9 is not subjected to move Driving force in the process avoids spout 9 from withstanding forces larger the case where being easily damaged, and therefore, breaker provided by the present application makes Extended with the service life.

Specifically, insulated connecting piece 10 is insulating cylinder, the first connector of master end 13 and the second connector of master end 14 are Metalwork, certainly, in specific assembling process, the first connector of master end 13 and the second connector of master end 14 are not limited to Metalwork, wherein the both ends of insulated connecting piece 10 connect with the first connector of master end 13 and the second connector of master end 14 respectively It connects, the through hole shape cavity installed for spout 9 is equipped in insulated connecting piece 10, specifically, for the ease of processing insulated connecting piece 10, It is preferred that through-hole is behave affectedly, body is circular cylindrical cavity.For the ease of integral installation, it is preferable that the first connector of master end 13 and master end Second connector 14 is the tubular construction for being set in 9 outside of spout.

For the ease of installing spout 9, it is preferable that spout 9 is bonded on 10 inner surface of insulated connecting piece.

Specifically, insulated connecting piece 10 is tubular construction, insulated connecting piece 10 can be integral type molding structure, can also be with It is process by multistage, for the ease of processing and assembling insulated connecting piece 10, it is preferable that insulated connecting piece 10 is cylinder barrel shaped knot Structure.Certainly, in the actual processing process, it can according to need and set non-cylindrical for insulated connecting piece 10, such as rectangular cylinder, Oval cylinder etc..

It is preferred that the inner surface of insulated connecting piece 10 and/or outer surface are equipped with polytetrafluoroethylene ethylene layer, since polytetrafluoroethylene (PTFE) has There are excellent chemical stability, corrosion resistance, sealing property, high lubrication, non-stickiness, electrical insulation and good anti-aging endurance, The inner surface of insulated connecting piece 10 and/or outer surface are equipped with resistance to electric arc coating, are specifically as follows polytetrafluoroethylene ethylene layer, extend absolutely The service life of edge connector 10 improves the safety in utilization of double acting switch equipment, it is preferable that 10 selection of insulated connecting piece is simultaneously Have the characteristics that electrical insulation properties are good, material of high mechanical strength.

It is assembling constantly, spout 9 is being mounted on through hole shape cavity, spout 9 and insulated connecting piece 10 pass through master end first Connector 13 and the second connector of master end 14 carry out limiting coaxial fixation, and the driving link 12 of arc-chutes 4 is past under mechanism drive The movement of multiple movement, driving link 12 passes to fracture transmission device by connecting-piece structure, then driven by the drive of fracture transmission device Part moves back and forth, and completes the switching on and off movement of arc-chutes 4.

Preferably, the first connector of master end 13 is set on the outside of 9 one end of spout, 13 first end of the first connector of master end Inner surface be equipped with the first retention bead 132 that can connect with the master end connecting pin of insulated connecting piece 10.For the company of raising Connect stability, it is preferable that the first retention bead 132 is ring structure, by the way that the first retention bead 132 is arranged, convenient for the company that will insulate Fitting 10 is installed in place with the first connector of master end 13, is realized effectively fixed.It is excellent for the ease of processing fracture transmission device Choosing, the first connector of master end 13 are an integral molding structure with the first retention bead 132.

More preferably, second end opposite with first end on the first connector of master end 13 is equipped with for insulated connecting piece 10 The master end arcwall face 131 of end slide-in 132 position of the first retention bead.I.e. as shown, the first connector of master end 13 is right The master end arcwall face 131 at end can be rounded face, and master end arcwall face 131 has the function of even fracture electric field, while just In installation insulated connecting piece 10.

In order to improve connective stability, it is preferable that the outer surface of 13 first end of the first connector of master end is equipped with for limiting The spout limited step 133 of spout 9.As shown in scheming and scheme, spout limited step 133 can be used for assisting to complete main contact and spray Mouth 9 is fixedly clamped.

Further, the end of the second connector of master end 14 be equipped with can be with the slave end connecting pin of insulated connecting piece 10 Second retention bead 142 of connection is equipped with slave end sealing ring between the second retention bead 142 and spout 9.Pass through setting second Retention bead 142, convenient for insulated connecting piece 10 and the second connector of master end 14 to be installed in place, by the way that driven side seal is arranged Circle and master end sealing ring realize the fixing end of spout 9 and the sealing installation of free end.The first connector of master end 13 has multiple Function is closed, while meeting the effect of stationary nozzle 9 and insulated connecting piece 10.The second connector of master end 14 has complex function, Meet the effect of even fracture electric field, guiding and fixed insulated connecting piece 10 simultaneously.Spout 9 is in 10 cavity of insulated connecting piece It is interior, it is not subjected to driving force.Sealing ring is installed in 9 left and right sides of spout between adjacent parts respectively, forms closed channel, will be exhausted Edge connector 10 is completely isolated except arc channel, avoids insulated connecting piece 10 by the electricity in switchgear interrupting process Arc, thermal current and electric arc decomposition product independent or collective effect and cause ground insulated connecting piece 10 insulation breakdown cause to insulate Failure.

Further, the second connector of master end 14 is equipped with for sliding into the second limit for 10 end of insulated connecting piece The slave end arcwall face 141 of raised 142 positions.As shown, the slave end arcwall face 141 of left end is specifically as follows arc surface, Slave end arcwall face 141 is used for even fracture electric field, while realizing the installation guiding of insulated connecting piece 10.

In order to further extend the service life of spout 9, it is preferable that one end of spout 9 passes through the first connector of master end 13 The fixing end being fixedly connected with insulated connecting piece 10, the other end of spout 9 are the freedom abutted with the second connector of master end 14 End.

On the basis of above-mentioned each scheme, it is preferable that insulated connecting piece 10, the first connector of master end 13, master end second Connector 14 and spout 9 are tightly connected, and are equipped with gas vent 101 with the side wall of 9 face of spout in insulated connecting piece 10.By exhausted Gas vent 101 is set on edge connector 10, convenient for the gas discharge in the gap between spout 9 and insulated connecting piece 10.Specifically , the number of gas vent 101 can for one, it is two or more etc., in the specific use process, for the ease of gas discharge, And guarantee integrated connection intensity, it is preferable that gas vent 101 is two, and two gas vents 101 are oppositely arranged.

In order to improve leakproofness, it is preferable that the double acting switch equipment of the breaker include both ends respectively with spout 9 and driving link The master end sealing ring of 12 connections.

Specifically, in order to extend the service life of protective plate 8, protective plate 8 is heat resistance insulating sheet, it is preferred that protective plate 8 For polyfluortetraethylene plate.For the ease of dismounting protective plate 8, it is preferable that protective plate 8 is an integral molding structure.

Since the existing horizontal axis of insulated pull rod 7 moves, and there is vertical direction swing, in order to improve the protection of protective plate 8 Performance, it is preferable that protective plate 8 is the dustproof cover for being set in 7 outside of insulated pull rod, and dustproof cover and arc-chutes mounting bracket 11 pass through tight Firmware connection, dustproof cover are equipped with the mounting hole 81 passed through for fastener, and mounting hole 81 is the bar shaped slided up and down for dustproof cover Hole, specifically, the long end of strip-shaped hole is vertical placement, convenient dust-proofing lid with swinging up and down for insulated pull rod 7 can move down Dynamic adjustment position, and then adjustment position can be swung up and down with insulated pull rod 7.For the ease of dismounting dustproof cover, it is preferable that fastener For threaded fastener.Specifically, dustproof cover and fastener are loose fits.Insulated pull rod 7 is cylindrical structure formula, dustproof cover center For circular hole, insulated pull rod 7 is facilitated to slide in circular hole.

Preferably, as shown, fastener at least two, and fastener is center line along absolutely using 7 axis of insulated pull rod The circumferential setting of protective plate 8.Specifically, in order to improve kinetic stability, it is preferable that fastener is four.

In order to further increase the safety in utilization of breaker, it is preferable that protective plate 8 and 7 gap of insulated pull rod are less than 1mm. Insulated pull rod 7 inputs connecting lever 1 by mechanism and drives movement.

Further, which further includes shell 5 and the arc-chutes being arranged in shell 54, and insulated pull rod 7 and protection fill It sets and is respectively positioned in shell 5, insulated pull rod 7 includes the first metal insert of the first metal insert 71, the second metal insert 73 and connection 71 and second metal insert 73 insulating cylinder 72, the first metal insert 71 is between insulated pull rod 7 and arc-chutes 4, protective plate 8 It is slidably matched with the first metal insert 71.The length of first metal insert 71 will be longer than the length of arc-chutes 4, guarantee insulated pull rod 7 remain that the first metal insert 71 of insulated pull rod 7 is opposite with protective plate 8 during the motion slides.

Further, which further includes the insulation branch that both ends are connect with shell 5 and arc-chutes mounting bracket 11 respectively Support member 6, wherein the number of insulated support 6 is decided according to the actual requirements, and the application is not specifically limited, and passes through setting insulation branch Support member 6 further increases breaker overall stability.

Breaker further includes slave end connector 3 and connects for 14 power of the second connector of master end to be sent to slave end The contact transmission device 2 of fitting 3, including connecting rod 21, connecting plate 22 and connecting plate transmission component, connecting rod 21 are connect with master end second Part 14 connects, and connecting plate transmission component includes the first connecting plate 24 and the second connecting plate 25 with the first connecting plate 24 hingedly, the first connecting plate 24 Upper one end far from the second connecting plate 25 is hinged by the first rotational pin 23 and connecting rod 21, far from the first connecting plate 24 on the second connecting plate 25 One end it is hinged with slave end connector 3 by the second rotational pin 26, connecting plate 22 is equipped with mobile for the first rotational pin 23 First pilot hole 221 and second pilot hole 222 mobile for the second rotational pin 26.

When assembling breaker, one end on connecting rod 21 far from the first connecting plate 24 is connect with master end connector, and second turn Dynamic pin 26 is connect with slave end connector 3.

As can be seen from the above description, it in the contact transmission device 2 provided by the application specific embodiment, is passed due to winning in succession Dynamic component includes that the first connecting plate 24 and second is won in succession, in practical work process, adjusts the first connecting plate according to transmission speed demand 24 and second connecting plate 25 length so that transmission component movement velocity transmission of winning in succession is not connected by slave end connector 3 and master end Effect of distance between fitting can be applied and realize and cut-off in voltage levels, and the versatility of contact transmission device 2 improves.

On the other hand, overall structure is simple, easy to disassemble.

Preferably, connecting plate transmission component further includes limition orientation part 27, and limition orientation part 27 is fixedly connected with connecting plate 22, First connecting plate 24 is equipped with can be along the guide chute 241 that limition orientation part 27 moves.Guide chute 241 can be arc groove, For the ease of the movement of the first connecting plate 24, it is preferable that guide chute 241 is vertical bar shaped slot, and guide chute 241 is matched with limition orientation part 27 It closes, therefore, the first connecting plate 24 can not only be rotated around limition orientation part 27, but also can also be slided, for the ease of first Connecting plate 24 moves, it is preferable that limition orientation part 27 is bearing.

For the ease of the first connecting plate 24 and the second effectively transmission of connecting plate 25, it is preferable that the second rotational pin 26 is located at the first connecting plate Between 24 and 25 hinge joint of the second connecting plate and the first rotational pin 23.

In order to improve kinetic stability, it is preferable that connecting plate 22 is equipped with the third pilot hole 223 for accommodating connecting rod 21, Connecting rod 21 can be slided along third pilot hole 223.The transmission connection ring 15 of master end connector is connect by bolt with connecting rod 21, Connecting rod 21 slides in the third pilot hole 223 in transmission bracket, and the connecting plate pin hole of the pin hole of connecting rod 21 and the first connecting plate 24 is used Slide pin connection.

Specifically, as shown in Figure 10, in separating brake initial position, when the tilt angle of the first connecting plate 24 and level is less than 45 degree When, from counter motion after moving arcing contact 33 and the first movement in the same direction of active arcing contact 16, when the first connecting plate 24 and horizontal tilt angle When greater than 45 degree, from moving arcing contact 33 and 16 counter motion of active arcing contact, the application master end connector is connect with slave end Part 3 is first the same as reversed backward.

When master end connector carries out separating brake movement as starting point using position shown in Figure 11 and Figure 12, slave end is driven to connect Fitting 3 moves together, and the track of separating brake movement is the slave moving arcing contact 33 and the second connector of master end 14 of slave end connector 3 The direction of motion is consistent, and then slave end connector 3 carries out rapidly the movement opposite with master end 14 directions of motion of the second connector, Stroke curve See Figure.

Preferably, connecting plate 22 is equipped with the 4th pilot hole 224 for accommodating slave end connector 3, the 4th pilot hole 224, the first pilot hole 221, the second pilot hole 222 and the setting of 223 centerline parallel of third pilot hole.In order to avoid overall structure It is thicker, it is preferable that the first pilot hole 221, the second pilot hole 222, third pilot hole 223 and the 4th pilot hole 224 guiding centre It is not overlapped, it is preferable that the first pilot hole 221, the second pilot hole 222, third pilot hole 223 and 224 center line of the 4th pilot hole are flat Row setting, connecting plate 22 are rectangular configuration, facilitate whole slide.

Specifically, the first pilot hole 221 and the second pilot hole 222 can be sliding groove structure, it can also be through-hole structure.

When work, the first connecting plate 24 can be slided along limition orientation part 27, and therefore, the first connecting plate 24 has change master end The ability of 3 lever no-load voltage ratio of second connector 14 and slave end connector, can be realized the effect of default key position high-speed motion, The master end connector of the connection of first connecting plate 24 moves along a straight line, and the first connecting plate 24 occurs around the rotation of limition orientation part 27 Movement, while sliding motion occurs along the distance of the first connecting plate 24 to straight line according to limition orientation part 27, sliding motion is the The constraint lower slider of the guide chute 241 of one connecting plate 24.The master end connector of connection moves along a straight line, and the straight line and first connects The limition orientation part 27 that plate 24 surrounds has nearest spacing, and nearest spacing is named as X in the point of straight line.The company of first connecting plate 24 connection The master end connector of bar 21 moves along a straight line, movement move from initial position to X point, and pass through X point, be finally parked in X point it Afterwards, in this process, the first connecting plate of active side length 24 of the first connecting plate 24 connects the position in master end to limition orientation part 27 distance is with shortening close to X point, and the first connecting plate of driven side length 24 connects the position of slave end to driven side guide piece Distance is with master end close to X point side length.As X point is crossed in master end, inverse change, the connection of the first connecting plate 24 occur for length variation The peak of movement velocity of slave end will appear in X point.It is achieved that when master end is moved near X point, slave end High-speed reverse movement, master end distance X point farther out when move, slave end movement velocity will reduce.

Specifically, the first rotational pin 23 reaches X point and passes as shown, the first connecting plate 24 changes with the angle a during rotation Dynamic no-load voltage ratio is maximum, and wherein X point is that the first rotational pin 23 is moved to apart from limition orientation part 27 in the first pilot hole 221 apart from most Short position is driven the formula of no-load voltage ratio are as follows:Wherein n is no-load voltage ratio, and L is 24 length of the first connecting plate, and S is Limition orientation part 27 arrives the distance of X point.

In specific works, the centre that X point is installed the interval 9ms after the separation of the contact in interrupting process is attached Closely, may be implemented breaker contact separation the interval 9ms in slave end high-speed motion, can be realized in 9ms needs open away from It is required that.And other than 9ms, slave end is all low-speed motion, saves mechanism operating work.

In motion process, active arcing contact 16 and from the first movement in the same direction of moving arcing contact 33, the counter motion the characteristics of, with compared with The slave moving arcing contact 33 of short length is just detached from after relatively large distance after the disengaging of active arcing contact 16, realizes longer driven arc touching First 33 function reduces excercises work done.

Connecting rod 21 is long straight cylinder structure, and one end of connecting rod 21 is bolt hole, and bolt hole is in the end face of connecting rod 21, the other end For the long rod structure of pinhole, bolt hole bolt and the transmission connection ring 15 of connecting rod 21 are fastenedly connected, and one end is in the first guiding It is slided in hole 221.

For the ease of sliding, it is preferable that guide chute 241 is vertical bar type sliding slot.

On the basis of above scheme, it is preferable that connecting plate transmission component is two, and two connecting plate transmission components are arranged in connection The opposite sides of plate 22, connecting rod 21 are two, and two connecting rods 21 are corresponded with two the first connecting plates 24.Connecting plate transmission component It is one, bad to the connection reliability from moving arcing contact 33, connecting plate transmission component is set as two, and arranged crosswise balances Slave end lateral force solves the problems, such as that reliability is not high.

As shown in scheming and scheme, two 27 coaxial-symmetricals of limition orientation part are respectively in the opposite sides of connecting plate 22.

As shown in scheming and scheme, two limition orientation parts 27 are distributed in the opposite sides of the second pilot hole 222.

The second connector of specific master end 14 includes active arcing contact 16, spout 9, air cylinder 17, piston rod 18, transmission Connection ring 15, transmission connection ring 15 are connect with connecting rod 21, and relative motion, all parts do not occur during the motion for all parts To be fixed to each other.Other than spout 9, remaining parts are metal manufacture.Spout 9 is insulating materials manufacture.The direction of motion is piston The axial movement of bar 18.

Slave end connector 3 includes driven from moving arcing contact 33, contact base 32, guiding connection device 31, motion process Arcing contact 33 and guiding connection device 31 move together, keep coaxial movement with master end, the direction of motion and actively in the same direction or It is incorgruous, it is sliding motion in contact base 32 from moving arcing contact 33, contact base 32 is fixed device, has played the driven arc of guarantee Contact 33 slides the effect of constraint in contact base 32.

In another embodiment, contact transmission device 2 includes guide plate 29, gear set, the first rack gear 291, pull rod 28, pull rod guide pin 296 and the second rack gear 292, gear set include the first gear 298 and second gear being fixedly and coaxially connected 299, first gear 298 is different with the number of teeth of second gear 299, and first gear 298 and second gear 299 are installed in guide plate On 29.

Pull rod guide pin 296 is mounted on the first rack gear 291, it is preferable that pull rod guide pin 296 is mounted on the first rack gear 291 End, specifically, pull rod guide pin 296 can be fixedly connected on the first rack gear 291, it is contemplated that 296 edge of pull rod guide pin Curved groove 281 reciprocatingly slides, and is prone to wear, it is preferable that pull rod guide pin 296 is rotatably connected on the first rack gear 291, specifically , pull rod guide pin 296 can be with 291 clearance fit of the first rack gear.First rack gear 291 is engaged with first gear 298.Pull rod 28 The first rack gear 291 is driven to move, pull rod guide pin 296 slides in curved groove 281, and pull rod 28 is equipped with and is able to drive the first tooth The curved groove 281 that item 291 is moved relative to pull rod 28.Second rack gear 292 is engaged with second gear 299, the second rack gear 292 and drawing 28 direction of motion of bar is parallel.

When assembling breaker, according to the set-up mode of the number of teeth and arc groove of first gear 298 and second gear 299, Pull rod 28 and 292 one of the second rack gear are connect with driving component, another one is connect with driven subassembly.

As shown in scheming and scheme, specifically, pull rod 28 is connect with the second connector of master end 14, the second rack gear 292 with it is driven Side connector 3 connects, and the number of teeth of first gear 298 is less than the number of teeth of second gear 299, wherein first gear 298 and the second tooth The gear ratio of wheel 299, depending on 198 final speed of static arc contact needs, specifically, when static arc contact 198 needs speed to get over Height, the two gear ratio are bigger.

When being located at closing position, pull rod guide pin 296 is located at one end on curved groove 281 far from gear set；

When being located at open position, pull rod guide pin 296 is located at one end on curved groove 281 close to gear set.

Further, which further includes 291 spacer pin of the first rack gear and along 291 direction of motion of the first rack gear The first rack gear limiting slot 2911 being arranged, the first rack gear spacer pin 295 and the setting of 2911 one of the first rack gear limiting slot are being oriented to On plate 29, another one is arranged on the first rack gear 291, and the first rack gear limiting slot is slidably arranged in the first rack gear spacer pin 295 In 2911.In order to improve the bonding strength of the first rack gear 291, it is preferable that the first rack gear spacer pin 295 is located on the first rack gear 291, First rack gear limiting slot 2911 is located on guide plate 29.

In order to improve 291 kinetic stability of the first rack gear, it is preferable that the first rack gear spacer pin 295 at least two, the first tooth Spacer pin 295 is arranged along 291 direction of motion of the first rack gear.

Further, which further includes the second rack gear limiting slot 2921 and can be in the second rack gear limiting slot The the second rack gear spacer pin 293 slided in 2921, the second rack gear limiting slot 2921 are arranged along the direction of motion of the second rack gear 292, Second rack gear limiting slot 2921 and 293 one of the second rack gear spacer pin are arranged on guide plate 29, and another one is arranged in the second tooth On item 292.Similarly, since the second rack gear 292 moves back and forth, in order to improve the bonding strength of the second rack gear 292, it is preferable that second Rack gear spacer pin 293 is located on the second rack gear 292, and the second rack gear limiting slot 2921 is located on guide plate 29.

Further, which further includes pull rod limiting slot 297 and can slide in pull rod limiting slot 297 Pull rod spacer pin 294, pull rod limiting slot 297 is arranged along 28 direction of motion of pull rod, pull rod spacer pin 294 and pull rod limiting slot 297 one are arranged on pull rod 28, and another one is arranged on guide plate 29.

As shown, in order to improve safety in utilization, it is preferable that the end of guide plate 29 is equipped with the end for accommodating pull rod 28 The limit spacing slot in portion.Limit spacing when pull rod 28, which encounters guide plate 29 relatively, extend out to extreme position, on guide plate 29 Pull rod 28 is clamped by slot, in order to realize the two clamping, it is preferable that the part in limit spacing slot is wide to 29 direction of guide plate Spend the structure being gradually increased.

For the ease of sliding, reduce friction, it is preferable that the first rack gear spacer pin 295, the second rack gear spacer pin 293, pull rod limit Position pin 294 and pull rod guide pin 296 are cylindrical pin.

For the ease of processing contact transmission device 2, it is preferable that guide plate 29 is an integral molding structure.

In a kind of specific assembling mode, one end of pull rod 28 is fixedly connected with the spout 9 of driving component, pull rod 28 it is another One end is equipped with pull rod spacer pin 294, is connect by pull rod spacer pin 294 with the pull rod limiting slot 297 on guide plate 29, pull rod limit Position pin 294 can slide in guide-track groove.First rack gear 291 is fixed on the curved groove 281 of pull rod 28 by pull rod guide pin 296 Interior, pull rod guide pin 296 can slide in curved groove 281, and gear set is made of two gears of size, and big pinion gear is fixed on together On one axis, wherein the first rack gear 291 is engaged with first gear 298, then by the second gear 299 and the second rack gear 292 of gear set Engagement, the second rack gear 292 are fixedly connected with the guiding device of driven subassembly, and wherein first gear 298 is pinion gear, second gear 299 be gear wheel.For the ease of integral installation, it is preferable that the direction of motion of 291 direction of motion of the first rack gear and the second rack gear 292 Vertically, i.e. 291 direction of motion of the first rack gear is vertical with 28 direction of motion of pull rod.

Specifically, the breaking-closing operating of breaker can have several motion modes, and in divide-shut brake movement, breaker Middle driving component is axially moved along piston rod 18, and driving component pulls contact transmission device 2 to move by spout 9, is passed by contact The axial movement of driving component is transformed to the axial movement in opposite to that direction by dynamic device 2, can be according to 4 opening velocity of arc-chutes It is required that the curved groove 281 of design pull rod 28 and the no-load voltage ratio of gear set, realize static arc contact 198 in specified section opposite direction high speed Separating brake.Specifically, breaker mechanism driving driving component is transported to the left along 4 axis horizontal of arc-chutes as figure combines figure shown Dynamic --- driving pull rod 28 to move downward along 4 axis horizontal of arc-chutes by the spout 9 of driving component --- has curve on pull rod 28 296 band of slot 281 --- curved groove 281 drives the pull rod guide pin 296 being fixedly connected with the first rack gear 291 --- pull rod guide pin Dynamic first rack gear 291 moves straight down --- and the first rack gear 291 moves the gear set inverse time that driving engages straight down Needle rotation --- the second rack gear 292 that gear set rotary motion driving and static arc contact 198 are connected moves horizontally to the right --- the Two rack gears 292 drive static arc contact 198 to move horizontally to the right, realize and move with the reversed separating brake of moving arcing contact.

Making process, as shown in the figure: breaker mechanism driving driving component is moved right along 4 axis horizontal of arc-chutes --- Pull rod 28 is driven to move right along 4 axis horizontal of arc-chutes by the spout 9 of driving component --- there is curved groove on pull rod 28 Pull rod guide pin 296 drives 281 --- curved groove 281 drives the pull rod guide pin 296 being fixedly connected with the first rack gear 291 --- First rack gear 291 moves straight up --- and it is clockwise that the first rack gear 291 moves the gear set that driving engages straight up Rotation --- 292 level of the second rack gear that gear set rotary motion driving is connected with static arc contact 198 moves downward --- second Rack gear 292 drives 198 level of static arc contact to move downward, and realizes and closes a floodgate simultaneously movement with moving arcing contact.

In specific design process, by 281 shape of curved groove of pull rod 28 and gear set size gear ratio, according to It needs to adjust 198 movement velocity of static arc contact, meets arc-chutes 4 and cut-off requirement.The combined floodgate direction of motion is on the contrary.I.e. 0-a-b-c is complete In stroke, driving component and driven subassembly are opposite direction movement.When driving component movement, and when driven subassembly stop motion, say The groove body length direction for the curved groove 281 that the bright guide pin of pull rod at this time 296 is slided is parallel with 28 direction of motion of pull rod.

In second of motion mode, such as scheme, in separating brake movement in-a-b stroke, driving component and driven subassembly are anti- Direction movement, b-c driving component continue separating brake movement, driven subassembly stop motion.The combined floodgate direction of motion is on the contrary.

In the third motion mode, such as scheme, in separating brake movement in a-b stroke, driving component and driven subassembly are anti- Direction movement, 0-a, the section b-c driving component do separating brake movement, and driven subassembly does not move.The combined floodgate direction of motion is on the contrary.

In the 4th kind of motion mode, such as scheme, in separating brake movement in a-b-c stroke, driving component is with driven subassembly Opposite direction movement, the section 0-a driving component do separating brake movement, and driven subassembly is static.The combined floodgate direction of motion is on the contrary.

In the 5th kind of motion mode, such as scheme, in separating brake movement in a-b stroke, driving component and driven subassembly are anti- Direction movement, the section 0-a driving component move in the same direction with driven subassembly.The section b-c driving component does separating brake movement, driven subassembly Stationary motion.The combined floodgate direction of motion is on the contrary.

In the 6th kind of motion mode, such as scheme, in separating brake movement in a-b-c stroke, driving component is with driven subassembly Opposite direction movement, the section 0-a driving component move in the same direction with driven subassembly.The combined floodgate direction of motion is on the contrary.

As can be seen from the above description, in the contact transmission device 2 provided by the application specific embodiment, according to breaker Specifically need to be arranged the length and radian of curved groove 281, i.e. 281 shape of curved groove can need to carry out according to itself circuit breaker characteristic Design, and then different circuit breaker characteristic demands can be met.Need to adjust first gear 298 according to 198 opening velocity of static arc contact With the tooth ratio of second gear 299, the case where being influenced by inner space is reduced, so that gear set, which has, improves static arc contact The function of 198 opening velocities directly amplifies n times by gear set transmission ratio, meets high speed separating brake requirement, operating work is effectively reduced, The versatility of contact transmission device 2 improves.

On the other hand, dynamic and static 198 counter motion of arcing contact when divide-shut brake moves is realized by the double acting drive mechanism, Using the shape of the curved groove 281 of pull rod 28 and the collective effect of the first rack gear 291, in conjunction with the size number of gear teeth of gear set Than design, it is capable of the realization high speed separating brake movement of simple and stable, reduces breaker manufacturing cost.Have amplification quiet by gear set The function of 198 opening velocity of arcing contact, can effectively reduce the radial dimension of contact transmission device 2, it is small to be conducive to breaker size Type.

In order to improve safety in utilization, it is preferable that the outside of contact transmission device 2 is equipped with shield.

When breaker does divide-shut brake movement, power is provided by breaker mechanism, driving driving component does divide-shut brake movement, after And moved with contact transmission device 2, then contact transmission device 2 drive slave end connector 3 to connect along master end second again 14 opposite direction of part movement, to realize double acting movement.

In order to improve transmission stability, it is preferable that guide plate 29 is equipped with the driven guide groove for being oriented to driven subassembly.

Breaker provided by the present application further includes the expansible chamber device of self-energy arc-extinguishing chamber, specifically includes piston 197, piston Bar 18 and expanding chamber 192, expanding chamber 192 are mounted on 18 outside of piston rod, are used for self-energy arc-extinguishing chamber.

Piston rod 18 is equipped with the first non-return valve 193 that can be connected to expanding chamber 192, when the inner cavity air pressure of piston rod 18 When greater than 192 air pressure of expanding chamber, the first non-return valve 193 is opened, and piston rod 18 is equipped with relief hole 181, when piston rod 18 is located at When closed state, relief hole 181 is located at closed state, when piston rod 18 in the open state, relief hole 181 is located at open shape State, wherein the opening and closing of relief hole 181- can be controlled by valve.When relief hole 181 is located at opening state, the first non-return valve 193 are located at closed state.It is smoothly mobile for the ease of piston rod 18, it is preferable that the outer surface of piston rod 18 is cylindrical structure.Tool Body, the first non-return valve 193 can for one, it is two or more etc., when the first non-return valve 193 is two, it is preferable that two the One non-return valve 193 is distributed in the two sides up and down of piston rod 18.When the first non-return valve 193 is one, it is preferable that the first non-return valve 193 are located at the surface of piston rod 18.

When piston rod 18 is located at closed state, relief hole 181 is in close state, when in piston rod 18 heat be pressurized, Air pressure increases in piston rod 18, until air pressure is greater than air pressure in expanding chamber 192 in piston rod 18, the first non-return valve 193 is opened, living Hot gas enters expanding chamber 192 by the first non-return valve 193 in stopper rod 18, and 192 air pressure of expanding chamber is increased.When piston rod 18 is to remote When from the movement of 198 direction of static arc contact, after moving arcing contact is separated with static arc contact 198, generated between sound arcing contact 198 Electric arc, piston rod 18 is in the open state, and relief hole 181 is opened, and the first non-return valve 193 is closed, and expanding chamber 192 is to arc position Complete pressure release.Wherein, the opening time of relief hole 181 can design relief hole 181 on piston rod 18 and open by being calculated Time, and then can more fully using electric arc choking phenomenon be expanding chamber 192 pressurize.

Hot gas in piston rod 18 can be delivered to the first non-return valve of expanding chamber 192 by being equipped on piston rod 18 193, when cut-offfing short trouble high current, other than the air-flow of spout throat can increase by 192 pressure of expanding chamber, piston rod 18 Interior gas can also be used to increase by 192 pressure of expanding chamber, so that the gas in expanding chamber 192 quicklys increase, effect is improved Expanding chamber 192 establishes the efficiency of pressure, improves 4 break performance of arc-chutes, reduces operating work, and then arc extinction performance improves.

Further, which further includes plenum chamber 191 and is arranged on plenum chamber 191, and be in communication with the outside Decompressor, plenum chamber 191 are connect by the second non-return valve 194 with expanding chamber 192, when 192 air pressure of expanding chamber is less than plenum chamber When 191 air pressure, the second non-return valve 194 is opened.Specifically, decompressor includes relief valve 196 and third non-return valve 195.

For the ease of dismounting expansible chamber device, it is preferable that plenum chamber 191 and expanding chamber 192 are set in the outer of piston rod 18 Side, piston 197 and plenum chamber 191 are tightly connected, and piston 197 and expanding chamber 192 are located at 191 opposite sides of plenum chamber.Specifically, Expanding chamber 192 and plenum chamber 191 can be independent chamber, be connected between the two by channel, and the second non-return valve 194 can be set It sets in channel.

Preferably, piston rod 18 is one, in the axis of piston rod 18, the center wire box expanding chamber 192 of plenum chamber 191 Heart line is overlapped.Since the center line of the axis of piston rod 18, the center line of plenum chamber 191 and expanding chamber 192 is overlapped, so that calming the anger Air pressure overall distribution is more uniform in room 191 and expanding chamber 192, further improves the service performance of self-energy arc-extinguishing chamber.

Preferably, plenum chamber 191 is adjacent with expanding chamber 192, and plenum chamber 191 and expanding chamber 192 are separated by spacing board, Second non-return valve 194 is mounted on spacing board.Since plenum chamber 191 and expanding chamber 192 are disposed adjacent, expanded convenient for integral arrangement Chamber device reduces whole area occupied.

More preferably, spacing board is an integral molding structure with plenum chamber 191, and 192 side wall of expanding chamber is equipped with and spacing board The limited step being tightly connected with 191 outer wall of plenum chamber.Since spacing board and plenum chamber 191 are an integral molding structure, convenient for adding Work and assembling expansible chamber device, while 192 side wall of expanding chamber is equipped with limited step, convenient for expanding chamber 192 and 191 side wall of plenum chamber It is tightly connected.

For the ease of adjusting 181 exhaust situation of relief hole and processing relief hole 181, it is preferable that relief hole 181 is strip-shaped hole, Preferably waist-shaped hole.

In view of 18 integral strength of piston rod and guarantee the smooth pressure release of piston rod 18, it is preferable that relief hole 181 be two, two A relief hole 181 is oppositely disposed in the opposite sides of piston rod 18.

On the basis of above-mentioned each scheme, it is preferable that when piston rod 18 is located at closed state, relief hole 181 and piston 197 Inner surface palette；When piston rod 18 in the open state, relief hole 181 is located at the outside of piston 197.Pass through piston rod 18 or the fitting of 197 side wall of piston, it realizes that relief hole 181 seals, avoids the case where valve seal is separately provided, and lived by adjusting Stopper rod 18 is that the opening and closing adjusting of relief hole 181 can be realized in position, easy to operate, and the pressure time can be built with flexible setting expanding chamber 192.

Wherein, can lead to when above-mentioned the first non-return valve 193 referred to, the second non-return valve 194 and third non-return valve 195 work It crosses valve self weight or spring connection pulls and realizes that valve is closed, certainly, the first non-return valve 193, the second non-return valve 194 and third are inverse Only the type of valve 195 is not limited to above situation.

It is preferred that breaker further includes quiet main contact, dynamic main contac, insulation supporting cylinder, insulation supporting cylinder includes intermediate insulation Support tube 204 and the dynamic side metal support inserts 201 and quiet side metal support inserts that 204 both ends of intermediate insulation support tube are set 202, quiet main contact is fixedly connected on quiet side metal support inserts 202, and dynamic main contac is electrically connected with dynamic side metal support inserts 201 It connects, and dynamic main contac is slidably connected with dynamic side metal support inserts 201.Preferably, side metal support inserts 201 and quiet side gold are moved The shielding circular arc for belonging to support inserts 202 protrudes into inside intermediate insulation support tube 204.Specifically, quiet main contact can pass through weldering It the modes such as connects or is bonded to be fixedly connected on quiet side metal support inserts 202.

When combined floodgate, in the quiet main contact structure of the dynamic arc main contact insertion quiet main contact of dynamic main contac.

Inserts 202 is supported by the way that quiet main contact is mounted on quiet side metal, it is embedding that dynamic main contac is mounted on dynamic side metal support On part 201, by fracture support construction and galvanic circle composite design, using the metal insert of fracture support as galvanic circle A part, and then quiet main contact and the corresponding support construction of dynamic main contac are saved, the overall volume of fracture contact apparatus is reduced, And then realize the miniaturization setting of fracture contact apparatus.

Specifically, for the ease of assembling fracture contact apparatus, it is preferable that dynamic side metal support inserts 201 and dynamic main contac Air cylinder coaxial arrangement.

Preferably, the air cylinder 17 of dynamic main contac supports inserts 201 to connect by spring contact 206 with dynamic side metal.Work It when making, supports inserts 201 that air cylinder 17 is driven to move by dynamic side metal, and then drives the dynamic arc main contact movement of the application.

Further, quiet side metal support 202 inner surface of inserts is equipped with the installation for being used to support the quiet side fingertip of quiet main contact Slot.Mounting groove is set by supporting in inserts 202 in quiet side metal, has not only acted as the effect of fracture support shielding, has also risen Support the effect of quiet side fingertip.

For the ease of processing insulation supporting cylinder, it is preferable that intermediate insulation support tube 204 is cylindrical structure.

In order to improve connective stability, it is preferable that dynamic side metal support inserts 201 and quiet side metal support inserts 202 are The ring structure circumferentially connected around intermediate insulation support tube 204, it is preferable that the both ends of intermediate insulation support tube 204 are respectively sleeved at On the outside of dynamic side metal support 201 end of inserts and on the outside of quiet side metal support 202 end of inserts.

The quiet side main contact supporting element that breaker is also connect with quiet side metal support inserts 202.Preferably, the breaker is also Dynamic side shield cover 203 including being located at dynamic 201 outside of side metal support inserts.More preferably, which further includes cover It is located at the quiet side shield cover 205 in quiet 202 outside of side metal support inserts.By the way that dynamic side shield cover 203 and quiet side shield cover is arranged 205, so that breaker can be applied to voltage levels.Specifically, dynamic side shield cover 203 and quiet side shield cover 205 are non-magnetic Property metal structure, be specifically as follows steel structure or constructed of aluminium, in order to mitigate overall weight, it is preferable that dynamic side shield cover 203 and quiet Side shield cover 205 is constructed of aluminium, and realizes independent fracture shielding.

Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.

The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest scope of cause.

Claims (10)

1. a kind of breaker, which is characterized in that including spout (9), the first connector of master end (13), the second connector of master end (14), insulated connecting piece (10), arc-chutes mounting bracket (11), insulated pull rod (7) and it is mounted on the arc-chutes mounting bracket (11) on, and the protective plate (8) for the insulating segment of the insulated pull rod (7) to be isolated with arc-chutes (4) inner cavity, the insulation Connector (10) both ends are connect with first connector of master end (13) and the second connector of the master end (14) respectively, institute The through hole shape cavity being equipped in insulated connecting piece (10) for the spout (9) installation is stated, the spout (9) and the insulation connect Part (10) carries out limiting coaxial fixation by first connector of master end (13) and the second connector of the master end (14), The end of the protective plate (8) and the insulated pull rod (7) snug engagement.

2. breaker according to claim 1, which is characterized in that further include slave end connector (3) and for will be described Master end the second connector (14) power is sent to the contact transmission device (2) of the slave end connector (3)；

The contact transmission device (2) includes connecting rod (21), connecting plate (22) and connecting plate transmission component, the connecting rod (21) and institute State the second connector of master end (14) connection, the connecting plate transmission component include the first connecting plate (24) and with first connecting plate (24) hinged the second connecting plate (25), one end far from second connecting plate (25) passes through first turn on first connecting plate (24) Hingedly, one end on second connecting plate (25) far from first connecting plate (24) passes through for dynamic pin (23) and the connecting rod (21) Hingedly, the connecting plate (22) is equipped with moves for first rotational pin (23) for two rotational pins (26) and slave end connector (3) Dynamic the first pilot hole (221) and second pilot hole (222) mobile for second rotational pin (26).

3. breaker according to claim 2, which is characterized in that the connecting plate transmission component further includes limition orientation part (27), the limition orientation part (27) is fixedly connected with the connecting plate (22), and first connecting plate (24) is equipped with being capable of edge The guide chute (241) of limition orientation part (27) movement, the limition orientation part (27) are located at first connecting plate (24) Between the second connecting plate (25) hinge joint and first rotational pin (23), the connecting plate (22) is equipped with for accommodating The third pilot hole (223) of the connecting rod (21), the connecting rod (21) can be slided along the third pilot hole (223), described Connecting plate (22) is equipped with the 4th pilot hole (224) for accommodating slave end connector (3), the 4th pilot hole (224), First pilot hole (221), second pilot hole (222) and the setting of third pilot hole (223) centerline parallel.

4. breaker according to claim 3, which is characterized in that the connecting plate transmission component is two, two companies Plate transmission component is arranged in the opposite sides of the connecting plate (22), and the connecting rod (21) is two, two connecting rods (21) It is corresponded with two first connecting plates (24).

5. breaker according to claim 2, which is characterized in that the folder of the first connecting plate (24) and the first pilot hole (221) Angle is a；

When the separating brake angle initial state a is less than 45 °, from moving arcing contact (33) and second connector of master end (14) when separating brake First counter motion after movement in the same direction；

When the separating brake angle initial state a is greater than 45 °, when separating brake described in from moving arcing contact (33) and second connector of master end (14) counter motion simultaneously；

First connecting plate (24) changes with the angle a during rotation, and first rotational pin (23) reaches X point transmission no-load voltage ratio most Greatly, wherein X point is that first rotational pin (23) moves in first pilot hole (221) apart from the limition orientation part (27) apart from shortest position, it is driven the formula of no-load voltage ratio are as follows:Wherein n is no-load voltage ratio, and L is described the One connecting plate (24) length, S are the distance for limiting guide part (27) and arriving X point.

6. breaker according to claim 1, which is characterized in that further include slave end connector (3) and for will be described Master end the second connector (14) power is sent to the contact transmission device (2) of the slave end connector (3), and the contact passes Dynamic device (2) include:

Gear set, the gear set include the first gear (298) and second gear (299) being fixedly and coaxially connected, and described first Gear (298) is different with the number of teeth of the second gear (299)；

Guide plate (29), the first gear (298) and the second gear (299) are installed on the guide plate (29)；

Pull rod guide pin (296)；

First rack gear (291), the pull rod guide pin (296) are mounted on first rack gear (291), first rack gear (291) it is engaged with the first gear (298)；

Pull rod (28), the pull rod (28) are equipped with and are able to drive what the first rack gear (291) was moved relative to the pull rod (28) Curved groove (281), pull rod guide pin (296) can be slided along the curved groove (281)；

And the second rack gear (292) engaged with the second gear (299), second rack gear (292) and the pull rod (28) The direction of motion is parallel.

7. breaker according to claim 6, which is characterized in that the pull rod (28) and second connector of master end (14) it connects, second rack gear (292) connect with the slave end connector (3), and the number of teeth of the first gear (298) is small The number of teeth in the second gear (299)；

When being located at closing position, the pull rod guide pin (296) is located on the curved groove (281) far from the gear set One end；

When being located at open position, the pull rod guide pin (296) is located on the curved groove (281) close to the gear set One end.

8. breaker according to claim 1, which is characterized in that it further include expansible chamber device, the expansible chamber device packet Piston (197), piston rod (18) and expanding chamber (192) are included, the expanding chamber (192) is mounted on the outside of the piston rod (18), The piston rod (18) is equipped with the first non-return valve (193) that can be connected to the expanding chamber (192), when the piston rod (18) when inner cavity air pressure is greater than the expanding chamber (192) air pressure, first non-return valve (193) is opened；

The piston rod (18) is equipped with relief hole (181), when the piston rod (18) is located at closed state, the relief hole (181) it is located at closed state；When the piston rod (18) in the open state, the relief hole (181) is located at opening state； When the relief hole (181) is located at opening state, first non-return valve (193) is located at closed state.

9. breaker according to claim 8, which is characterized in that the relief hole (181) is two, two pressure releases Hole (181) is oppositely disposed in the opposite sides of the piston rod (18), described when the piston rod (18) is located at closed state The inner surface palette of relief hole (181) and the piston (197)；When the piston rod (18) in the open state, institute Relief hole (181) are stated to be located on the outside of the piston (197).

10. breaker according to claim 1, which is characterized in that further include quiet main contact, dynamic main contac, insulating supporting Cylinder, the insulation supporting cylinder include intermediate insulation support tube (204) and are arranged at intermediate insulation support tube (204) both ends Dynamic side metal support inserts (201) and quiet side metal support inserts (202), the quiet main contact are fixedly connected on the quiet side gold Belong in support inserts (202), the dynamic main contac supports inserts (201) to be electrically connected with the dynamic side metal, and described moves main touching Head is slidably connected with dynamic side metal support inserts (201).