CN204102778U - The operating mechanism of switch with double-isolation - Google Patents
The operating mechanism of switch with double-isolation Download PDFInfo
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- CN204102778U CN204102778U CN201420524636.1U CN201420524636U CN204102778U CN 204102778 U CN204102778 U CN 204102778U CN 201420524636 U CN201420524636 U CN 201420524636U CN 204102778 U CN204102778 U CN 204102778U
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- connecting rod
- isolating switch
- switch
- operating mechanism
- isolation
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Abstract
A kind of operating mechanism of switch with double-isolation, be included in isolating switch power transmission shaft, described operating mechanism also comprises drive link, first connecting rod, second connecting rod and third connecting rod, the upper end of described drive link is arranged on described isolating switch power transmission shaft, the lower end of described drive link and the upper end thereof of described third connecting rod, the lower end of described third connecting rod is by bearing pin and described first connecting rod, the upper end of second connecting rod connects, the middle part of described first connecting rod and second connecting rod is all hinged with mounting panel, the elongated hole inner sleeve of the lower end of described first connecting rod loads onto connecting axle, the elongated hole inner sleeve of the lower end of described second connecting rod loads connecting axle, upper connecting axle is arranged on the motion end of the upper movable feeler lever of isolating switch, described lower connecting axle is arranged on the motion end of the lower movable feeler lever of lower isolating switch.The utility model provides a kind of simplified structure, effectively reduces the operating mechanism taking the switch with double-isolation of volume.
Description
Technical field
The utility model relates to a kind of isolating switch, especially a kind of operating mechanism of isolating switch.
Background technology
Current power distribution system equipment is generally made up of isolating switch, vacuum interrupter, earthed switch etc., with bus, these autonomous devices are connected to form electric power system, its isolating switch, earthed switch be generally adopt guillotine type or rotary come circuit and connection and cut-off, dielectric can be divided into air, oil, SF6 sulfur hexafluoride gas etc.Best with SF6 sulphur hexafluoride performance, but SF6 sulfur hexafluoride gas is also one of six kinds of greenhouse gases of generally acknowledging in the world, and also can produce toxic gas when electric current cut-offs, manufacturing and in maintenance process, even also endangering that it arrives the life of people.With the apparatus insulated poor-performing of air as insulated switch, the equipment volume therefore produced is comparatively large, and floor space is large, and by the impact of environment for use, the factors of instability are more, and are not suitable for for outdoor environment.Ring main unit and switch cubicle are the primary power source power supply units using this this equipment combination, and primary power source to this equipment, is transported to user through isolating switch, vacuum interrupter or combined electrical apparatus through cable transmission.Earthed switch side ensures personal safety use for during maintenance, isolating switch also have upper isolation and lower isolation point, be equally all safeguard protection effect.Because this several switch has respective volume, total volume that combines is comparatively large, and the volume of whole equipment is increased, and manufacturing cost improves.Because equipment separate connection loop increases, total loop resistance is increased, and the electric energy that system consumes on the device is also without many.Isolating switch, the fracture of earthed switch in these dielectrics are apart from relatively large in addition, make the size of whole switch also become large.
The defect that existing isolating switch exists: operating mechanism complex structure, to take volume larger.
Summary of the invention
In order to overcome the complex structure of existing isolating switch under ring main unit environment for use, take the larger deficiency of volume, the utility model provides a kind of simplified structure, effectively reduces the operating mechanism taking the switch with double-isolation of volume.
The utility model solves the technical scheme that its technical problem adopts:
A kind of operating mechanism of switch with double-isolation, be included in isolating switch power transmission shaft, described operating mechanism also comprises drive link, first connecting rod, second connecting rod and third connecting rod, the upper end of described drive link is arranged on described isolating switch power transmission shaft, the lower end of described drive link and the upper end thereof of described third connecting rod, the lower end of described third connecting rod is by bearing pin and described first connecting rod, the upper end of second connecting rod connects, the middle part of described first connecting rod and second connecting rod is all hinged with mounting panel, the elongated hole inner sleeve of the lower end of described first connecting rod loads onto connecting axle, the elongated hole inner sleeve of the lower end of described second connecting rod loads connecting axle, upper connecting axle is arranged on the motion end of the upper movable feeler lever of isolating switch, described lower connecting axle is arranged on the motion end of the lower movable feeler lever of lower isolating switch.
The beneficial effects of the utility model are mainly manifested in: devise link operations structure, greatly reduce the volume size of manufacturing equipment, make to produce to reach current optimization with equipment.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the operating mechanism of switch with double-isolation.
Fig. 2 is the schematic diagram of the unit switch with two isolation features.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
With reference to Fig. 1, a kind of operating mechanism of switch with double-isolation, be included in isolating switch power transmission shaft 35, described operating mechanism also comprises drive link, first connecting rod 1, second connecting rod 4 and third connecting rod 36, the upper end of described drive link is arranged on described isolating switch power transmission shaft 35, the lower end of described drive link and the upper end thereof of described third connecting rod 36, the lower end of described third connecting rod 36 is by bearing pin and described first connecting rod 1, the upper end of second connecting rod 4 connects, the middle part of described first connecting rod 1 and second connecting rod 4 is all hinged with mounting panel 34, the elongated hole inner sleeve of the lower end of described first connecting rod 1 loads onto connecting axle 6, the elongated hole inner sleeve of the lower end of described second connecting rod 4 loads connecting axle 11, upper connecting axle 6 is arranged on the motion end of the upper movable feeler lever of isolating switch, described lower connecting axle 11 is arranged on the motion end of the lower movable feeler lever of lower isolating switch.
The isolating switch of the present embodiment is applied to the unit switch with two isolation features, comprise vacuum interrupter 20, isolating switch and earthed switch, described vacuum interrupter 20, isolating switch and earthed switch adopt solid insulating material to be coated in sealing pedestal, the moving contact side of described vacuum interrupter 20 is provided with isolating switch, the fixed contact side of described vacuum interrupter 20 is provided with lower isolating switch, and described upper isolating switch and lower isolating switch are piston type isolating switch;
Described upper isolating switch comprises movable feeler lever 5, the upper piston chamber for described upper movable feeler lever action is had in sealing three pole base of the moving contact side of described vacuum interrupter 20, described upper movable feeler lever 5 installs conducting ring 17 near the moving contact side of vacuum interrupter, the upper movable feeler lever of described upper conducting ring 17 both sides to install on second sealing ring 181 on sealing ring 141 and the 3rd respectively, wherein, on second, sealing ring 141 is near the moving contact side of vacuum interrupter, and the outer wall both sides of described upper conducting ring 171 arrange upper left watchband-shaped contactor and upper right watchband-shaped contactor 161 respectively; Isolation Connection Block 7 is installed at the middle part in described upper piston chamber, grounding base 3 is installed away from the moving contact side of vacuum interrupter in described upper piston chamber, moving contact Connection Block 21 is installed near the moving contact side of vacuum interrupter in described upper piston chamber, the loop connecting end inwall of described moving contact Connection Block 21 installs moving contact watchband-shaped contactor 22, and the moving contact 65 of described vacuum interrupter slides up and down to be sleeved in described moving contact watchband-shaped contactor 22; Distance between described moving contact Connection Block 21 and upper isolation Connection Block 7 is less than the length of described upper conducting ring 171;
Described lower isolating switch comprises lower movable feeler lever 19, the lower piston chamber for described lower movable feeler lever action is had in sealing three pole base below the fixed contact of described vacuum interrupter, static connection seat 15 is installed near fixed contact side in described lower piston chamber, the fixed contact 64 of described vacuum interrupter is electrically connected with described static connection seat 15, described lower movable feeler lever 19 installs lower conducting ring 172 near fixed contact side, the lower movable feeler lever of described lower conducting ring 172 both sides installs the second lower seal 142 and the 3rd lower seal 182 respectively, wherein, second lower seal 142 is near fixed contact side, the outer wall both sides of described lower conducting ring 172 arrange bottom left watchband-shaped contactor and bottom right watchband-shaped contactor 162 respectively, lower isolation Connection Block 13 is installed at the middle part in described lower piston chamber, and the distance between described fixed contact Connection Block 15 and lower isolation Connection Block 19 is less than the length of described lower conducting ring 172, described lower isolation Connection Block 13 is connected with busbar 12.
In upper isolating switch, upper movable contact rod 5 is equipped with sealing ring 141 and upper watchband-shaped contactor 161 on sealing ring 181 on the 3rd, upper conducting ring 171, second.When current watchband-shaped contactor 161 is moved to that the quiet seat 21 of being dynamically connected is with upper isolation Connection Block 7 corresponding position with vacuum interrupter, upper isolating switch closes a floodgate.Instantly contact stem moves right and makes sealing ring 141 on second arrive vacuum interrupter to be dynamically connected between seat 21 and upper isolation Connection Block 7, and upper isolating switch separating brake, on second, sealing ring 141 plays insulation buffer action at this.When upper movable contact rod 5 drives watchband-shaped contactor 161 to be moved to upper isolation Connection Block 7 with grounding base corresponding position, earthed switch closes a floodgate.
In lower isolating switch, lower contact stem 19 is equipped with the 3rd lower seal 182, lower conducting ring 172, second lower seal 142 and lower watchband-shaped contactor 162, it is that the good material of elasticity is made that static connection seat 15 and the vacuum interrupter of vacuum interrupter are integrated sealing ring.Lower moving contact bar 19 can slide in institute's pilot hole, and when movable contact rod 19 drives lower watchband-shaped contactor 162 to be moved to vacuum interrupter static connection seat 15 and lower isolation Connection Block 13 corresponding position instantly, lower isolating switch closes a floodgate.Instantly contact stem moves right and the second lower seal 142 is arrived under between vacuum interrupter static connection seat 15 and lower isolation Connection Block 13, and lower isolating switch separating brake, the second lower seal 14 plays insulation buffer action at this.Piston 10 can move left and right in auxiliary piston chamber, and the lower piston chamber that this auxiliary piston chamber and lower moving contact bar 19 move communicates, and when movable contact rod 19 is moved to the left instantly, piston 10 moves right, and piston 10 is equipped with the first sealing ring 9.Instantly when movable contact rod 19 moves right, piston 10 is moved to the left, equal with the air pressure in retaining hole.
Upper movable contact rod 5 and lower moving contact bar 19 realize being synchronized with the movement, and also can drive respectively.
In the present embodiment, grounding base 3, upper isolation Connection Block 7, busbar 12, lower isolation connection 13, vacuum interrupter 20, vacuum interrupter moving contact Connection Block 21 are cast in sealing pedestal 43 by shown position.
The contact of vacuum interrupter moving contact 65 and vacuum interrupter fixed contact 64 realizes closing and cut-offfing electric current in circuit with being separated.Vacuum interrupter moving contact 65 can be loaded on slip in the moving contact watchband-shaped contactor 22 on vacuum interrupter moving contact Connection Block 21, and the screw thread on insulated tension pole 23 is connected with vacuum interrupter moving contact 65.Contact pressure spring 24 is housed in the hole of insulated tension pole 23, and packing ring 25 is housed spring base 27 great circle both ends of the surface and compacted nut 26 is pressed in insulated tension pole hole, and the first pull bar 28 is threaded with spring base 27.First pull bar 28 1 stomidium is connected with for pin with double leval jib 29 1 stomidium, and the hole on another stomidium pin and mounting panel 34 is connected on support 33, and interstitial hole is connected with transmission connecting plate 32 first pin 30.The connecting plate of the vacuum interrupter power transmission shaft 31 driven by mechanism is connected with the other end pin of transmission connecting plate 32.
The vacuum interrupter power transmission shaft 31 that vacuum interrupter and isolating switch, earthed switch are connected by operating mechanism output shaft respectively and isolating switch power transmission shaft 35 operate.In accompanying drawing 1, the contact of vacuum interrupter is in make position, and isolating switch is also for closing position and earthed switch is off position.Connecting plate 32 is in vertical position, and the reaction force acts of touch spring is at the center of vacuum interrupter power transmission shaft.During vacuum interrupter separating brake, vacuum interrupter power transmission shaft rotates clockwise, and is pulled upwardly by connecting plate double leval jib 29 by connecting rod 32, and vacuum interrupter moving contact 65 leaves vacuum interrupter fixed contact 64, and in circuit, electric current disconnects.The operation of isolating switch and earthed switch can be carried out after vacuum interrupter moving contact 65 and vacuum interrupter fixed contact 64 disconnect, isolating switch power transmission shaft is rotated clockwise by operating mechanism output shaft rotation, rotate downwards by the 6th pin 78 of the driver plate on isolating switch power transmission shaft 35 with third connecting rod 36, drive first connecting rod 1 and second connecting rod 4 to be synchronized with the movement.Have a hole and mounting panel 34 respectively to have one to sell at first connecting rod 1 and the middle part of second connecting rod 4 to be connected, in upper movable contact rod 5, connecting axle 6 connects, lower moving contact bar 19 is connected with lower connecting axle 11, and upper connecting axle 5 and lower connecting axle 11 are each passed through the elongated hole below first connecting rod 1 and second connecting rod 4.During isolating switch drive axis, first connecting rod 1 and second connecting rod 4 pin on mounting panel 34 is driven to rotate through third connecting rod 36, elongated hole below first connecting rod 1 and second connecting rod 4 drives connecting axle 6 and lower connecting axle 11 to move right, and realizes the sub-switching operation to isolating switch.Isolating switch power transmission shaft continues the closing operation having rotated clockwise earthed switch.
Claims (1)
1. the operating mechanism of a switch with double-isolation, be included in isolating switch power transmission shaft, it is characterized in that: described operating mechanism also comprises drive link, first connecting rod, second connecting rod and third connecting rod, the upper end of described drive link is arranged on described isolating switch power transmission shaft, the lower end of described drive link and the upper end thereof of described third connecting rod, the lower end of described third connecting rod is by bearing pin and described first connecting rod, the upper end of second connecting rod connects, the middle part of described first connecting rod and second connecting rod is all hinged with mounting panel, the elongated hole inner sleeve of the lower end of described first connecting rod loads onto connecting axle, the elongated hole inner sleeve of the lower end of described second connecting rod loads connecting axle, upper connecting axle is arranged on the motion end of the upper movable feeler lever of isolating switch, described lower connecting axle is arranged on the motion end of the lower movable feeler lever of lower isolating switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420524636.1U CN204102778U (en) | 2014-09-12 | 2014-09-12 | The operating mechanism of switch with double-isolation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420524636.1U CN204102778U (en) | 2014-09-12 | 2014-09-12 | The operating mechanism of switch with double-isolation |
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| Publication Number | Publication Date |
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| CN204102778U true CN204102778U (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420524636.1U Active CN204102778U (en) | 2014-09-12 | 2014-09-12 | The operating mechanism of switch with double-isolation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109658619A (en) * | 2018-11-30 | 2019-04-19 | 宁波耀华电气科技有限责任公司 | A kind of electric energy meter payment system based on two dimensional code payment |
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2014
- 2014-09-12 CN CN201420524636.1U patent/CN204102778U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109658619A (en) * | 2018-11-30 | 2019-04-19 | 宁波耀华电气科技有限责任公司 | A kind of electric energy meter payment system based on two dimensional code payment |
| CN109658619B (en) * | 2018-11-30 | 2021-03-23 | 宁波耀华电气科技有限责任公司 | Electric energy meter prepayment system based on two-dimensional code payment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |