CN203135294U - Solid insulation ring main unit - Google Patents
Solid insulation ring main unit Download PDFInfo
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- CN203135294U CN203135294U CN 201220728101 CN201220728101U CN203135294U CN 203135294 U CN203135294 U CN 203135294U CN 201220728101 CN201220728101 CN 201220728101 CN 201220728101 U CN201220728101 U CN 201220728101U CN 203135294 U CN203135294 U CN 203135294U
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- vacuum interrupters
- main unit
- ring main
- solid insulation
- station
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Abstract
The utility model relates to the technical field of solid insulation ring main units and discloses a solid insulation ring main unit. The solid insulation ring main unit comprises a cabinet body, a cabinet door, a door lock mechanism, a double-position mechanism, a three-position switch operation mechanism and a solid-sealed polar pole; the solid-sealed polar pole includes an insulation body, a double-position vacuum arc-extinguishing chamber, a three-position vacuum arc-extinguishing chamber, a first insulation pull rod and a second insulation pull rod. The solid insulation ring main unit which adopts the above structure can assist in realizing the full-solid insulation of the solid-sealed polar pole, such that the full-solid insulation of the solid insulation ring main unit can be realized, and miniaturization of high voltage switchgears can be promoted.
Description
Technical field
The utility model relates to solid insulation ring main unit technical field, relates in particular to a kind of solid insulation ring main unit.
Background technology
In high voltage switchgear, if the insulation crust of vacuum interrupter is exposed in the air, exist by extraneous dust, moist pollution problems easily.For reducing the influence of external environment, usually require the shell of vacuum interrupter that enough length is arranged, this not only influences the miniaturization of vacuum interrupter, also influence the Performance And Reliability of vacuum interrupter, therefore, the conductive pieces that vacuum interrupter is relevant with circuit breaker is embedded into simultaneously in the easy cured solid insulating material of this class of epoxy resin and forms pole, makes whole circuit breaker polar become as a whole parts, is called pole.
Pole can improve the reliability of circuit breaker; Because vacuum interrupter is embedded in the solid material, pole has very high dielectric strength; After vacuum interrupter was embedded in solid material, the external environment of pole was less to the influence of vacuum interrupter.Therefore, high voltage switchgear progressively develops to the solid insulation direction at present.
In the prior art, for the safety operation of maintenance of equipment need, the primary cut-out switch cubicle is provided with the isolating switch of grounding function, the primary cut-out switch cubicle adopts the solid insulation ring main unit usually, its general circuit breaker polar of solid inside front cover station vacuum interrupter that adopts connects the isolating switch composition, and the isolating switch port adopts air or SF6 gas-insulated, and this solid insulation ring main unit is not the insulation of total solids, will influence high voltage switchgear and develop to miniaturization.
Therefore, how to realize the insulation of solid insulation ring main unit total solids, become the technical barrier that those skilled in the art need to be resolved hurrily.
The utility model content
First purpose of the present utility model provides a kind of solid insulation ring main unit, comprises cabinet, cabinet door, door lock mechanism, two station mechanisms, three-station operating mechanism and pole;
Described pole comprises insulator, two station vacuum interrupters, three station vacuum interrupters, first insulated tension pole, second insulated tension pole; Described two station vacuum interrupters, described three station vacuum interrupters are embedded in respectively in first cavity, second cavity of described insulator; First insulated tension pole, second insulated tension pole are connected with the moved end of described two station vacuum interrupters, the moved end of described three station vacuum interrupters respectively, the moved end of the moved end of described two station vacuum interrupters, described three station vacuum interrupters connects by connector, and described first insulated tension pole, second insulated tension pole, described connector all are positioned at the 3rd cavity of described insulator; Outlet conducting rod and the earth terminal of the inlet wire conducting rod of described two station vacuum interrupters, described three station vacuum interrupters all extend described insulator.
Preferably, described earth terminal comprises earth terminal and ground stud, and described earth terminal is connected with the moved end of described three station vacuum interrupters, and described ground stud is connected with described earthing device, and described ground stud extends described insulator.
Preferably, at least one in described outlet conducting rod, inlet wire conducting rod, described earth terminal, the described ground stud and described insulator envelope place admittedly are provided with gauze screen, and the wiring pile end face of described gauze screen extends described insulator.
Preferably, described three-station operating mechanism comprises the isolation rotating shaft, the ground connection rotating shaft, first gear mechanism, power transmission shaft, second gear mechanism, three position actuators, described isolation rotating shaft one end, one end of ground connection rotating shaft forms the isolated operation end respectively, the ground connection operating side, the other end of described isolation rotating shaft, the other end of ground connection rotating shaft, one end of power transmission shaft carries out transmission by described first gear drive, the other end of described power transmission shaft is connected with the driving gear center of described second gear drive, the driven gear center of described second gear drive is connected with three position actuators by connecting axle, and three position actuators have isolating switch moving contact connecting portion.
Preferably, described three position actuators comprise cam, connecting rod; Described cam is provided with chute, and described chute comprises the first segmental arc chute with different arc radius, the second segmental arc chute, the 3rd segmental arc chute that is communicated with successively; The upper end of described connecting rod is provided with pivot pin, and described bearing pin is movably connected in the described chute, and the lower end of described connecting rod is provided with the isolating switch moving contact connecting portion for the insulated tension pole that connects isolating switch; The pivot of described cam is connected with described connecting axle.
Preferably, described door lock mechanism comprises cam, pull bar, fork, latch, described cam is connected with the ground connection rotating shaft of three-station operating mechanism by transmission mechanism, described cam is provided with chute, described chute comprises the circular arc with different radii of two sections connections, the upper end of described pull bar is stuck in the described chute by pivot pin, one end of the lower end of described pull bar and described fork is hinged, the middle part hinged securement of described fork, the other end of described fork and the upper end of described latch are hinged, and the lower end of described latch is used for inserting the jack of being located on the described cabinet door.
Preferably, the through hole of supporting plate is passed in the lower end of described pull bar, be positioned at described supporting plate up and down on the described pull bar of both sides respectively thread connection first packing ring, stop nut are arranged, has default spacing between described first packing ring, the described stop nut, the top of the above first packing ring of described pull bar is provided with second packing ring, is provided with spring between described first packing ring, described second packing ring.
Preferably, also comprise interlocking device, this interlocking device comprises all rotatable baffle plates, first direction board, second direction board, described baffle plate is arranged on the described support by pivot pin is rotatable, described baffle plate is positioned at described isolated operation end, the outside of described ground connection operating side, described first direction board, the inboard of described second direction board is respectively equipped with can be against first grade of pin of described baffle plate outer, second grade of pin, by adjusting first grade of pin, the position of second grade of pin, described baffle plate can be in only blocks described isolated operation hole, only block described ground connection handle hole, block described isolated operation hole simultaneously, three positions of described ground connection handle hole.
The solid insulation ring main unit that the utility model provides comprises cabinet, the cabinet door, door lock mechanism, two station mechanisms, three-station operating mechanism and pole, wherein pole is being used for holding two station vacuum interrupters respectively, first cavity of three station vacuum interrupters, the top of second cavity is provided with the 3rd cavity, two station vacuum interrupters, the moved end of three station vacuum interrupters is all stretched in described the 3rd cavity, first insulated tension pole, second insulated tension pole and connector are positioned at described the 3rd cavity, with two station vacuum interrupters, three station vacuum interrupters, the inlet wire conducting rod, the outlet conducting rod, earth terminal is enclosed in together admittedly; And realize electric insulation with operating mechanism by first insulated tension pole, second insulated tension pole, thus realize the solid insulation of pole, and then can realize the insulation of solid insulation ring main unit total solids, can promote that high voltage switchgear develops to miniaturization.
Description of drawings
Fig. 1 is the internal structure schematic diagram of solid insulation ring main unit provided by the utility model;
Fig. 2 is the Facad structure schematic diagram of solid insulation ring main unit provided by the utility model
Fig. 3 is the structural representation of a kind of embodiment of pole among Fig. 1;
Fig. 4 is the structural representation of door lock mechanism among Fig. 1;
Fig. 5 is the main TV structure schematic diagram of three-position switch actuating mechanism among Fig. 1;
Fig. 6 is the structural representation of operating mechanism among Fig. 6;
Fig. 7 is the plan structure schematic diagram of three position actuators among Fig. 5;
Fig. 8 is the sectional structure schematic diagram of three position actuators among Fig. 7;
Fig. 9 is the structural representation of interlocking device.
Wherein, among Fig. 1-Fig. 9:
Isolate rotating shaft 101, ground connection rotating shaft 102, power transmission shaft 103, first gear mechanism 104, second gear mechanism 105, driving gear 151, driven gear 152, three position actuators 16, connecting axle 160, cam 161, connecting rod 162, pivot pin 163, pivot pin 164;
Supporting plate 70, cam 71, pull bar 72, fork 73, inserted link 74, plug 75, jack 76, connecting rod 77, first packing ring 78, second packing ring 79, stop nut 710, nut 711, spring 712.
Embodiment
In order to make those skilled in the art better understand the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please referring to Fig. 1-Fig. 3, Fig. 1 is the internal structure schematic diagram of solid insulation ring main unit provided by the utility model, Fig. 2 is the Facad structure schematic diagram of solid insulation ring main unit provided by the utility model, and Fig. 3 is the structural representation of a kind of embodiment of pole among Fig. 1.
As shown in Figure 1 and Figure 2, the solid insulation ring main unit that provides of the utility model comprises cabinet 100, cabinet door 110, door lock mechanism 120, two station mechanisms 140, three-station operating mechanism 130 and pole.
Wherein, as shown in Figure 3, described pole comprises insulator 1, two station vacuum interrupters 2, three station vacuum interrupters 3, first insulated tension pole 4, second insulated tension pole 5; Described insulator 1 has the first cavity 1-1, the second cavity 1-2, the 3rd cavity 1-3, and the described first cavity 1-1, the second cavity 1-2 are arranged side by side, and described the 3rd cavity 1-3 is positioned at the top of the described first cavity 1-1, the second cavity 1-2; Described two station vacuum interrupters 2, described three station vacuum interrupters 3 are embedded in respectively in the described first cavity 1-1, the second cavity 1-2; The moved end of the moved end of described two station vacuum interrupters 2, described three station vacuum interrupters 3 is all stretched in described the 3rd cavity 1-3.
First insulated tension pole 4, second insulated tension pole 5 are connected with the moved end of described two station vacuum interrupters 2, the moved end of described three station vacuum interrupters 3 respectively, the moved end of the moved end of described two station vacuum interrupters 2, described three station vacuum interrupters 3 connects by connector, and described first insulated tension pole 4, second insulated tension pole 5, described connector all are positioned at described the 3rd cavity 1-3; Inlet wire conducting rod 7 is connected with the quiet end of two station vacuum interrupters 2, outlet conducting rod 8 is connected with the quiet end of three station vacuum interrupters 3, earth terminal is located at the side of three station vacuum interrupters 3, earth terminal is used for the moved end ground connection with three station vacuum interrupters 3, and outlet conducting rod 8 and the earth terminal of the inlet wire conducting rod 7 of described two station vacuum interrupters 2, described three station vacuum interrupters 3 all extend described insulator 1.
This pole is provided with the 3rd cavity 1-3 above for the first cavity 1-1, the second cavity 1-2 that hold two station vacuum interrupters 2, three station vacuum interrupters 3 respectively, the moved end of two station vacuum interrupters 2, three station vacuum interrupters 3 is all stretched in described the 3rd cavity 1-3, first insulated tension pole 4, second insulated tension pole 5 and connector are positioned at described the 3rd cavity 1-3, and two station vacuum interrupters 2, three station vacuum interrupters 3, inlet wire conducting rod 7, outlet conducting rod 8, earth terminal are enclosed in together admittedly; And realize electric insulation with operating mechanism by first insulated tension pole 4, second insulated tension pole 5, thus realize the solid insulation of pole, and then can realize the insulation of solid insulation ring main unit total solids, can promote that high voltage switchgear develops to miniaturization.
In the preferred version, described insulator 1 can be epoxy resin block, epoxy resin has the good insulation performance performance, after fixed installations such as two above-mentioned station vacuum interrupters 2, three station vacuum interrupters 3, inlet wire conducting rod 7, outlet conducting rod 8, earth terminal, first insulated tension pole 4, second insulated tension pole 5 can being finished, form described insulator 1 by the mode of pouring into a mould.
In the preferred version, can be provided with conductor layer or semiconductor layer at the outer surface of described insulator 1, be used for safety ground.
In the concrete scheme, be positioned at and be convenient to described earth terminal ground connection, described earth terminal comprises earth terminal 9 and ground stud 10, described earth terminal 9 is connected with the moved end of described three station vacuum interrupters 3, described ground stud 10 is connected with described earthing device, and described ground stud 10 extends described insulator 1.
In the preferred scheme, in described outlet conducting rod 8, inlet wire conducting rod 7, described earth terminal, the described ground stud 10 at least one and described insulator 1 solid envelope place are provided with gauze screen 11, the wiring pile end face of described gauze screen 11 extends described insulator 1, and the wiring pile end face of gauze screen 11 is used for connecting the charged display unit 150 of solid insulation ring main unit.
In the preferred scheme, described connector is flexible link 6, and flexible link 6 can adopt thin copper wire to be woven into banding pattern or be twisted into the structure of multiply circle, moves continuously to realize big electric current.
In the concrete scheme, described three station vacuum interrupters 3 are isolating switch, and described two station vacuum interrupters 2 are circuit breaker.Externally under the effect of operating mechanism, the moved end of three station vacuum interrupters 3 can move up and down, can be in closing position, separating brake position and earthing position, when moved end and quiet end in contact, be in "on" position, when separate with quiet end the moved end, be in gate-dividing state, when the moved end contacts with ground connection, be in ground state.
The moved end of described two station vacuum interrupters 2 can be connected with the operating side of permanent magnet mechanism by second insulating bar, drive two station vacuum interrupters 2 by permanent magnet mechanism and be in combined floodgate or gate-dividing state, in the concrete scheme, permanent magnet mechanism can be controlled circuit breaker by combined floodgate switch 142 switches, the separating brake switch 143 of permanent magnet mechanism controller 141 and be in "on" position or gate-dividing state.
Wherein, as Fig. 5, shown in Figure 6, described three-station operating mechanism comprises operating mechanism and three position actuators 16, wherein operating mechanism comprises isolation rotating shaft 101, ground connection rotating shaft 102, first gear mechanism 104, power transmission shaft 103, second gear mechanism 105, described isolation rotating shaft 101 1 ends, one end of ground connection rotating shaft 102 forms the isolated operation end respectively, the ground connection operating side, the other end of described isolation rotating shaft 101, the other end of ground connection rotating shaft 102, one end of power transmission shaft 103 carries out transmission by described first gear drive, the other end of described power transmission shaft 103 is connected with driving gear 151 centers of described second gear drive, and driven gear 152 centers of described second gear drive are connected with three position actuators 16 by connecting axle 160.
As Fig. 7, shown in Figure 8, described three position actuators 16 comprise cam 161, connecting rod 162, and the two end supports of described connecting axle is on frame; Described cam 161 is provided with the cam chute, and described cam chute comprises the first segmental arc chute with different arc radius, the second segmental arc chute, the 3rd segmental arc chute that is communicated with successively; The upper end of described connecting rod 162 is provided with pivot pin 164, and described bearing pin 164 is movably connected in the described cam chute, and the lower end of described connecting rod 162 is provided with a plurality of isolating switch moving contact connecting portions for the insulated tension pole that connects a plurality of isolating switches.
In the time of will isolating rotating shaft 101 and rotate counterclockwise 180 °, rotate 120 ° by first gear mechanism 104, power transmission shaft 103, second gear mechanism, 105 driving cams 161, pivot pin on the connecting rod 162 will move upward from low side in chute, realize the close a floodgate conversion of separating brake of isolating switch; Clockwise rotate ground connection rotating shaft 102 Rotate 180s °, by 120 ° of first gear mechanisms 104, power transmission shaft 103,161 rotations of second gear mechanism, 105 driving cams, connecting rod 162 moves upward again, realizes that the isolating switch separating brake is to the conversion of ground connection.
As shown in Figure 9, interlocking device is used for the isolated operation end to three station manipulation mechanisms, interlock in the ground connection operating side, described isolated operation end, described ground connection operating side lays respectively at the isolated operation hole 301 of support, in the ground connection handle hole 302, this interlocking device comprises rotatable baffle plate 204, first direction board 202, second direction board 203, described baffle plate 204 is by pivot pin 242 rotatable being arranged on the described support 201, described baffle plate 204 is positioned at described isolated operation end, the outside of described ground connection operating side, this baffle plate 204 is used for optionally blocking described isolated operation hole 301 or described ground connection handle hole 302, described first direction board 202, the inboard of described second direction board 203 is respectively equipped with can be against first grade of pin 221 of described baffle plate 204 outers, second grade of pin 231, by rotating described first direction board 202, described second direction board 203, also namely by adjusting first grade of pin 221, the position of second grade of pin 231, described baffle plate 204 can be in and only block described isolated operation hole 301, only block described ground connection handle hole 302, block described isolated operation hole 301 simultaneously, 302 3 positions of described ground connection handle hole.
In the concrete scheme, for the ease of operation baffle plate 204, the interlocking device that the application provides also comprises connecting rod 241, and as shown in Figure 4, an end of connecting rod 241 is baffle plate 204 round ends, the other end is provided with pivot pin 243, baffle plate 204 is provided with elongated slot, and pivot pin 243 slidably is stuck in the described elongated slot, rotates described baffle plate 204 round ends, pivot pin 243 can slide in described elongated slot, drives baffle plate 204 simultaneously and in the opposite direction rotates around pivot pin 242.
In the preferred scheme, described baffle plate 204 round ends can be for being located at the axle sleeve 244 of connecting rod 241 ends, can adopt operating grip to rotate described axle sleeve 244, operating grip is inserted in the described axle sleeve 244, axle sleeve 244 is clockwise or when being rotated counterclockwise, and described baffle plate 204 will be counterclockwise or the clockwise direction rotation.In baffle plate 204 round end settings and the interlock plate handle hole 303.
In the concrete scheme, the pivot of described first direction board 202 is fixedly mounted in described first rotating shaft 223 by back-up ring 222, by rotating first rotating shaft 223, can drive first direction board 202 and carry out corresponding rotation, and then make the shelves pin 221 of winning be in corresponding position; The pivot of described second direction board 203 is fixedly mounted in described second rotating shaft 233 by back-up ring 232, by rotating second rotating shaft 233, can drive second direction board 203 and carry out corresponding rotation, and then make second grade of pin 231 be in corresponding position.
Wherein, door lock mechanism 120 is used for pinning and opening the cabinet door 110 of solid insulation ring main unit, this door lock mechanism 120 comprises cam 71, pull bar 72, fork 73, latch, described cam 71 is connected with the ground connection rotating shaft of three-station operating mechanism by transmission mechanism, described cam 71 is provided with chute, described chute comprises the circular arc with different radii of two sections connections, the upper end of described pull bar 72 is stuck in the described chute by pivot pin, one end of the lower end of described pull bar 72 and described fork 73 is hinged, the middle part hinged securement of described fork 73, in the concrete scheme, described supporting plate 70 is provided with connecting rod 77, the middle part of described fork 73 is hingedly fixed on the described connecting rod 77, and the other end of described fork 73 and the upper end of described latch are hinged, and the lower end of described latch is used for inserting the jack of being located on the described cabinet door 76.
The solid ring main unit is in "on" position, and in the jack 76 on the lower end insertion cabinet door of latch, when needs overhauled, rotating shaft, isolating switch separating brake were isolated in operation counterclockwise; Operational grounding ground connection rotating shaft clockwise, isolating switch ground connection, simultaneously, the ground connection rotating shaft drives cam 71 rotations by transmission mechanism, cam 71 will drive pull bar 72 and move down, and the lower end of pull bar 72 drives latch by fork 73 and moves up, in the jack 76 on the latch disengaging cabinet door, remove latch to the locking action of cabinet door, can draw back the cabinet door this moment; After the maintenance of solid insulation ring main unit finishes, the rotating shaft of rotation ground connection, the ground connection rotating shaft drives cam 71 rotations by transmission mechanism, cam 71 will drive pull bar 72 and move up, the lower end of pull bar 72 drives latch by fork 73 and moves down, in the jack 76 on the latch insertion cabinet door, realize the locking of cabinet door.
This door lock mechanism can be guaranteed just can open the cabinet door after the isolating switch ground connection, can avoid isolating switch ground connection just not being opened the generation of the situation of solid insulation switch cabinet, has eliminated the possibility that causes serious security incident.
In the preferred scheme, the through hole of supporting plate 70 is passed in the lower end of described pull bar 72, being positioned on the described pull bar 72 of described supporting plate both sides about in the of 70 respectively, thread connection has first packing ring 78, stop nut, has default spacing between described first packing ring 78, the described stop nut, described predeterminable range is used for limiting the scope that pull bar 72 moves up and down, and then limits the distance that latch inserted and broke away from jack 76.
Further in the scheme, in order to improve the stability of first packing ring 78, can below first packing ring 78, nut 711 be set.
In the more excellent scheme, after latch breaks away from jack 76, the cabinet door of solid insulation ring main unit is opened, at this moment, in order to prevent that latch from falling, when closing the cabinet door, latch can't insert in the jack 76 again, is provided with second packing ring 79 in the upper fixed of described pull bar 72 the above first packing ring 78, described first packing ring 78, be provided with spring 712 between described second packing ring 79, after latch broke away from jack 76, pull bar 72 moved down, and first packing ring 78 and nut 711 are against supporting bracket, under the reaction force of supporting bracket, first packing ring 78 and nut 711 will upwards compress spring 712, and under the pretightning force effect of spring 712, pull bar 72 is in the position that moves down all the time, it is the top that latch is in jack 76 all the time, can prevent that latch from falling, when closing the cabinet door, latch also can insert in the jack 76 smoothly.
In the preferred scheme, in order to adjust the length of latch, described latch comprises inserted link 74 and plug 75, described inserted link 74 passes through thread connection with described plug 75, in the concrete scheme, the lower end of described inserted link 74 has internal thread hole, and the upper end of described plug 75 has external screw thread, the lower end of the upper end of described plug 75 and described inserted link 74 forms thread connection, and this structure can be adjusted the length of latch as required.
Further in the scheme, in order to make being connected firmly between inserted link 74 and the plug 75, can be provided with clamp nut at the thread connection place of described plug 75 and described inserted link 74.
Set the solid ring main unit and be in "on" position, operating sequence when needs overhaul; Press separating brake switch 143, breaker open operation; Change interlock plate handle hole 303 clockwise, open isolated operation hole 301, operate the isolated operation end counterclockwise, the isolating switch separating brake; Interlock plate handle hole 303 is closed isolated operation hole 301 counterclockwise, opens ground connection handle hole 302, clockwise operational grounding operating side, and isolating switch ground connection, simultaneously, door lock mechanism 120 will be extracted the jack 76 of latch from the cabinet door; Hand puts in door handle 121 and upwards mentions and open cabinet door 110.
The above only is the description of the preferred implementation of utility model; should be understood that; because the finiteness of literal expression; and objectively have unlimited concrete structure; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (8)
1. a solid insulation ring main unit is characterized in that, comprises cabinet, cabinet door, door lock mechanism, two station mechanisms, three-station operating mechanism and pole;
Described pole comprises insulator, two station vacuum interrupters, three station vacuum interrupters, first insulated tension pole, second insulated tension pole; Described two station vacuum interrupters, described three station vacuum interrupters are embedded in respectively in first cavity, second cavity of described insulator; First insulated tension pole, second insulated tension pole are connected with the moved end of described two station vacuum interrupters, the moved end of described three station vacuum interrupters respectively, the moved end of the moved end of described two station vacuum interrupters, described three station vacuum interrupters connects by connector, and described first insulated tension pole, second insulated tension pole, described connector all are positioned at the 3rd cavity of described insulator; Outlet conducting rod and the earth terminal of the inlet wire conducting rod of described two station vacuum interrupters, described three station vacuum interrupters all extend described insulator.
2. solid insulation ring main unit according to claim 1, it is characterized in that, described earth terminal comprises earth terminal and ground stud, described earth terminal is connected with the moved end of described three station vacuum interrupters, described ground stud is connected with described earthing device, and described ground stud extends described insulator.
3. solid insulation ring main unit according to claim 2, it is characterized in that, in described outlet conducting rod, inlet wire conducting rod, described earth terminal, the described ground stud at least one and described insulator envelope place admittedly are provided with gauze screen, and the wiring pile end face of described gauze screen extends described insulator.
4. according to each described solid insulation ring main unit of claim 1-3, it is characterized in that, described three-station operating mechanism comprises the isolation rotating shaft, the ground connection rotating shaft, first gear mechanism, power transmission shaft, second gear mechanism, three position actuators, described isolation rotating shaft one end, one end of ground connection rotating shaft forms the isolated operation end respectively, the ground connection operating side, the other end of described isolation rotating shaft, the other end of ground connection rotating shaft, one end of power transmission shaft carries out transmission by described first gear drive, the other end of described power transmission shaft is connected with the driving gear center of described second gear drive, the driven gear center of described second gear drive is connected with three position actuators by connecting axle, and three position actuators have isolating switch moving contact connecting portion.
5. solid insulation ring main unit according to claim 4 is characterized in that, described three position actuators comprise cam, connecting rod; Described cam is provided with chute, and described chute comprises the first segmental arc chute with different arc radius, the second segmental arc chute, the 3rd segmental arc chute that is communicated with successively; The upper end of described connecting rod is provided with pivot pin, and described bearing pin is movably connected in the described chute, and the lower end of described connecting rod is provided with the isolating switch moving contact connecting portion for the insulated tension pole that connects isolating switch; The pivot of described cam is connected with described connecting axle.
6. solid insulation ring main unit according to claim 5, it is characterized in that, described door lock mechanism comprises cam, pull bar, fork, latch, described cam is connected with the ground connection rotating shaft of three-station operating mechanism by transmission mechanism, described cam is provided with chute, described chute comprises the circular arc with different radii of two sections connections, the upper end of described pull bar is stuck in the described chute by pivot pin, one end of the lower end of described pull bar and described fork is hinged, the middle part hinged securement of described fork, the other end of described fork and the upper end of described latch are hinged, and the lower end of described latch is used for inserting the jack of being located on the described cabinet door.
7. solid insulation ring main unit according to claim 6, it is characterized in that, the through hole of supporting plate is passed in the lower end of described pull bar, be positioned at described supporting plate up and down on the described pull bar of both sides respectively thread connection first packing ring, stop nut are arranged, has default spacing between described first packing ring, the described stop nut, the top of the above first packing ring of described pull bar is provided with second packing ring, is provided with spring between described first packing ring, described second packing ring.
8. solid insulation ring main unit according to claim 4, it is characterized in that, also comprise interlocking device, this interlocking device comprises all rotatable baffle plates, first direction board, second direction board, described baffle plate is arranged on the described support by pivot pin is rotatable, described baffle plate is positioned at described isolated operation end, the outside of described ground connection operating side, described first direction board, the inboard of described second direction board is respectively equipped with can be against first grade of pin of described baffle plate outer, second grade of pin, by adjusting first grade of pin, the position of second grade of pin, described baffle plate can be in only blocks described isolated operation hole, only block described ground connection handle hole, block described isolated operation hole simultaneously, three positions of described ground connection handle hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220728101 CN203135294U (en) | 2012-12-24 | 2012-12-24 | Solid insulation ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220728101 CN203135294U (en) | 2012-12-24 | 2012-12-24 | Solid insulation ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203135294U true CN203135294U (en) | 2013-08-14 |
Family
ID=48943235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220728101 Withdrawn - After Issue CN203135294U (en) | 2012-12-24 | 2012-12-24 | Solid insulation ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203135294U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166143A (en) * | 2012-12-24 | 2013-06-19 | 刘晓颖 | Solid dead ring main unit |
| CN105702492A (en) * | 2016-03-17 | 2016-06-22 | 宁波兴邦电器有限公司 | Tri-position operating apparatus for switching device |
| CN111064111A (en) * | 2020-01-15 | 2020-04-24 | 云南电网有限责任公司电力科学研究院 | Inflatable switch cabinet |
-
2012
- 2012-12-24 CN CN 201220728101 patent/CN203135294U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166143A (en) * | 2012-12-24 | 2013-06-19 | 刘晓颖 | Solid dead ring main unit |
| CN103166143B (en) * | 2012-12-24 | 2015-12-09 | 宁波优维电力科技有限公司 | A kind of solid insulation ring main unit |
| CN105702492A (en) * | 2016-03-17 | 2016-06-22 | 宁波兴邦电器有限公司 | Tri-position operating apparatus for switching device |
| CN111064111A (en) * | 2020-01-15 | 2020-04-24 | 云南电网有限责任公司电力科学研究院 | Inflatable switch cabinet |
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