CN203118857U - Three-phase load switch - Google Patents
Three-phase load switch Download PDFInfo
- Publication number
- CN203118857U CN203118857U CN 201320047860 CN201320047860U CN203118857U CN 203118857 U CN203118857 U CN 203118857U CN 201320047860 CN201320047860 CN 201320047860 CN 201320047860 U CN201320047860 U CN 201320047860U CN 203118857 U CN203118857 U CN 203118857U
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- phase load
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- load switch
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Abstract
The utility model discloses a three-phase load switch comprising a pedestal, three switches, and a connecting rod. The three switches are fixedly disposed on the pedestal, and the connecting rod is connected with the three switches, therefore the three switches can be switched on/off synchronously in a linked manner. The stroke of the transmission of the three-phase load switch can be the shortest by using a four-connecting rod elbow-type linkage mechanism, the blade switching on/off positions are not required to be operated repeatedly, and the three-phase blades can be switched on/off at the same time accurately and correctly. The four-connecting rod mechanism can be used to provide mechanical gains effectively, and can be used to reduce the operation torque to the greatest extent, and is provided with the excellent icing operation ability and the excellent ice breaking operation ability. The three-phase load switch is advantageous in that the structure is simple, the operation is convenient, the regular maintenance, the regular adjustment, and the regular calibration are not required, and a more economic solution scheme can be provided for the ring network system, which only requires the switching on/off of the three-phase load, and is free of the short circuit protection.
Description
Technical field
The utility model relates to the transmission of electricity distribution product technical field of electric power electric, is specifically related to a kind of three-phase load switch.
Background technology
Existing distribution network branch node generally adopts vacuum or sulphur hexafluoride three-phase breaker or house dog to come the disjunction circuit, and cost is higher; Especially the branch node that only needs to load sectionalized line for some and need not the distribution line of overload protection uses circuit breaker or house dog only to be used for load disjunction line loop operation, causes the waste on the function, increases cost; Because the design of circuit breaker or house dog all adopts vacuum or sulphur hexafluoride as dielectric, need regularly equipment to be gone along with sb. to guard him or on-line monitoring simultaneously, increased extra cost.
Circuit breaker or house dog are except the most basic load connecting-disconnecting function, and topmost function is the connecting-disconnecting function of short circuit current or fault current, so cost is higher.And need not the distribution line branch node of overload protection for only loading disjunction, use above switch reality only to use its basic functions.Exactly because and circuit breaker or house dog possess the breaking capacity of short circuit or fault current, thus determined it must adopt vacuum or sulphur hexafluoride as dielectric, so compress into capable on-line monitoring or detection regularly in must reaching its container.
Summary of the invention
The purpose of this utility model is to provide a kind of three-phase load switch, can synchronous multi-joint operation, and carry out side direction and cut-off, aiming at only needs three-phase load to cut-off, and the system that need not short-circuit protection provides more economical solution.
To achieve these goals, the technical scheme that the utility model proposes is:
A kind of three-phase load switch comprises base, switch, connecting rod, and described switch is three groups and is fixedly arranged on described base, and described connecting rod connects three groups of switches, makes three groups of switches can the synchronous interaction folding.
As the further improved three-phase load switch of the utility model, described every group of switch comprises base plate, movable insulator, fixed insulation, stiff end terminal block, movable end terminal block, conduction disconnecting link; Described base plate is fixedly arranged on described base, described movable insulator bottom is movably set in base plate one end by axle one, described fixed insulation bottom is fixedly arranged on the base plate other end, described stiff end terminal block is fixedly arranged on described movable insulator top, described movable end terminal block is fixedly arranged on the sub-top of described fixed insulation, described conduction disconnecting link one end is fixedly arranged on described stiff end terminal block, and the described conduction disconnecting link other end is connected with the contact of movable end terminal block; Described connecting rod connects the movable insulator of described three groups of switches, and described three groups of activity insulators can be rotated synchronously.Described movable insulator and described axle one rotate synchronously.
As the further improved three-phase load switch of the utility model, described three groups of base plates all are vertically located in described base.
As the further improved three-phase load switch of the utility model, the axle one of described three groups of switches all is set with pull bar, and described three groups of pull bars flexibly connect by axle two and described connecting rod.
As the further improved three-phase load switch of the utility model, described connecting rod is provided with three side arms, and described side arm one end surrounds fastening structure by the C font and is fixedly arranged on described connecting rod, and the described side arm other end and described axle two flexibly connect.
As the further improved three-phase load switch of the utility model, described every group of switch also comprises arc-control device, and described arc-control device is fixedly arranged on described movable end terminal block.
As the further improved three-phase load switch of the utility model, described arc-control device comprises arc-extinguish chamber, the arc leading and suppressing body, the striking contact, described arc leading and suppressing body one end is fixedly arranged on described movable end terminal block and is connected with described movable end terminal block conduction, it is external that described arc-extinguish chamber parcel is arranged at described arc leading and suppressing, described striking contact is arranged at described arc-extinguish chamber and can rotates, described striking contact one end is positioned at described arc-extinguish chamber and is connected with described arc leading and suppressing body contact conduction, and the described striking contact other end is positioned at outside the described arc-extinguish chamber and with described conduction disconnecting link contact conduction and is connected.Described striking contact connects described conduction disconnecting link, described arc leading and suppressing body is connected with described movable end terminal block conduction, when described conduction disconnecting link and described movable end terminal block disconnect be connected after, the admittance of disconnecting link and described movable end terminal block is still realized conducting electricity by described striking contact, arc leading and suppressing body in the loop; Then, described striking contact can rotate and be connected with the disconnection of arc leading and suppressing body, thereby loop cut-off point (being the electric arc origination point) is caused described arc-extinguish chamber, make the final breaking point in loop be positioned at arc-control device, by arc-control device aerogenesis, arc extinguishing, exhaust, all arcings, arc extinguishing process are all carried out in airtight arc-control device, can not work the mischief to peripheral personnel or equipment.For distribution line, provide various circuit load load such as induced current, capacity current, phase current, line load breaking capacity.
As the further improved three-phase load switch of the utility model, any one or more groups the axle in described three groups of switches one is provided with action bars, and an end of described action bars is movably connected on the reverse extending end of described pull bar by axle three.
As the further improved three-phase load switch of the utility model, also comprise swing arm, described swing arm end is provided with the hook groove, described swing arm is movably set in described base by axle four, the other end of described action bars is movably connected on swing arm by axle five, and described axle five is on the swing arm between described axle four and the described hook groove.
Three-phase load switch provided by the utility model, by the link gear transmission that four connecting rods are crossed the elbow type, stroke is the shortest, need not repeatable operation and adjusts blade folding position, guarantees the folding simultaneously of three-phase blade or closes, and accurately put in place.Quadric chain can effectively provide mechanical gain, has reduced the operation moment of torsion to the full extent, has excellent icing, serviceability opens ice.Simple in structure because of it, easy to operately need not regularly to go along with sb. to guard him, adjustment, cut-off for only needing three-phase load, the loop network system that need not short-circuit protection provides more economical solution.
The mode of operation of three-phase load switch provided by the utility model has plurality of optional: 1, use hook rod drawing operation; 2, use connecting rod manual operation under electric pole; 3, adopt the motor drive mechanism driving switch, on the spot or the Remote operation, motor drive mechanism can place under the electric pole and be connected with switch by connecting rod, but also on-line equipment on Switch main body.Motor drive mechanism can be independently-powered by internal battery when having a power failure, and realizes various functions such as unattended operation, far-end remote control, on-line monitoring by matching different functional modules.
Description of drawings
Fig. 1, three-phase load switch plan structure schematic diagram;
Fig. 2, three-phase load switch-side TV structure schematic diagram;
Fig. 3, the structural representation when arc-control device is closed in the three-phase load switch;
Fig. 4, the structural representation when arc-control device disconnects in the three-phase load switch.
1 is base, and 2 is switch, and 3 is connecting rod, and 4 is base plate, 5 is movable insulator, and 6 is fixed insulation, and 7 is the stiff end terminal block, and 8 is the movable end terminal block, 9 are the conduction disconnecting link, and 10 is that axle one, 11 is pull bar, and 12 is axle two, 13 is side arm, and 14 is arc-control device, and 15 is arc-extinguish chamber, and 16 is the arc leading and suppressing body, 17 are the striking contact, and 18 is action bars, and 19 is that axle three, 20 is swing arm, 21 is groove, and 22 is that axle four, 23 is that axle five, 24 is motor drive mechanism.
Embodiment
In order to deepen understanding of the present utility model, the utility model is done describing in further detail below in conjunction with drawings and Examples, this embodiment only is used for explaining the utility model, does not constitute the restriction to the utility model protection range.
Shown in Fig. 1-4, a kind of three-phase load switch that present embodiment provides comprises base 1, switch 2, connecting rod 3, and described switch 2 is three groups and is fixedly arranged on described base 1, and described connecting rod 3 connects three groups of switches 2, makes three groups of switches 2 can the synchronous interaction folding.
Particularly, described every group of switch 2 comprises base plate 4, movable insulator 5, fixed insulation 6, stiff end terminal block 7, movable end terminal block 8, conduction disconnecting link 9; Described base plate 4 is fixedly arranged on described base 1, described movable insulator 5 bottoms are movably set in base plate 4 one ends by axle 1, described fixed insulation 6 bottoms are fixedly arranged on base plate 4 other ends, described stiff end terminal block 7 is fixedly arranged on described movable insulator 5 tops, described movable end terminal block 8 is fixedly arranged on described fixed insulation 6 tops, described conduction disconnecting link 9 one ends are fixedly arranged on described stiff end terminal block 7, and described conduction disconnecting link 9 other ends are connected with 8 contacts of movable end terminal block; Described connecting rod 3 connects the movable insulator 5 of described three groups of switches 2, and described three groups of activity insulators 5 can be rotated synchronously.Preferably, described three groups of base plates 4 all are vertically located in described base 1.Further, the axle 1 of described three groups of switches 2 all is set with pull bar 11, and described three groups of pull bars 11 flexibly connect by axle 2 12 and described connecting rod 3.Described connecting rod 3 is provided with three side arms 13, and described side arm 13 1 ends surround fastening structure by the C font and are fixedly arranged on described connecting rod 3, and described side arm 13 other ends and described axle 2 12 flexibly connect.
As further improvement of this embodiment, described every group of switch also comprises arc-control device 14, and described arc-control device 14 is fixedly arranged on described movable end terminal block 8.Described arc-control device 14 comprises arc-extinguish chamber 15, arc leading and suppressing body 16, striking contact 17, described arc leading and suppressing body 16 1 ends are fixedly arranged on described movable end terminal block 8 and are connected with described movable end terminal block 8 conductions, described arc-extinguish chamber 15 parcels are arranged at outside the described arc leading and suppressing body 16, described striking contact 17 is arranged at described arc-extinguish chamber 15 and can rotates, described striking contact 17 1 ends are positioned at described arc-extinguish chamber 15 and are connected with described arc leading and suppressing body 16 contact conductions, and described striking contact 17 other ends are positioned at outside the described arc-extinguish chamber 15 and with described conduction disconnecting link 9 contact conductions and are connected.
As further improvement of this embodiment, any one or more groups the axle in described three groups of switches 2 one 10 is provided with action bars 18, and an end of described action bars 18 is movably connected on the reverse extending end of described pull bar 11 by axle 3 19.
The mode of three-phase load switch place in circuit is: power circuit connects stiff end terminal block 7 and the movable end terminal block 8 of three groups of switches 2, makes power circuit realize admittance by conduction disconnecting link 9.
Three-phase load switch shown in Figure 1 is connecting rod manipulation type structure, can operate by motor drive mechanism 24 direct attended operation bars 18, or cause ground by 18 connections of several sections same action bars, carries out the disconnection and closure of operation-control switch manually.Motor drive mechanism 24 rotates or action bars 18 is moved to the left, three groups of axles 1 turn clockwise simultaneously under the effect of connecting rod 3, three groups of conduction disconnecting links 9 also turn clockwise simultaneously, are connected thereby conduction disconnecting link 9 is disconnected with movable end terminal block 8, namely realize the disconnection of three-phase circuit.As shown in Figure 3, Figure 4, after 8 disconnections of conduction disconnecting link 9 and movable end terminal block are connected, conduction disconnecting link 9 still keeps in touch with striking contact 17, along with being further rotated of conduction disconnecting link 9, striking contact 17 breaks away from arc leading and suppressing body 16 in arc-extinguish chamber 15 when rotating, thereby open circuit, thereby realization will be extinguished in the electric arc introducing arc-control device 16 of generation, exhaust.
Three-phase load switch shown in Figure 2 is the swing arm 20 connection switching manipulation bars 18 by the double end pothook type structure of side, and personnel come the disconnection of control switch with closed by this swing arm 20 of insulated hook rod pulling under electric pole.Described three-phase load switch also comprises swing arm 20, described swing arm 20 ends are provided with hook groove 21, described swing arm 20 is movably set in described base 1 by axle 4 22, the other end of described action bars 18 is movably connected on swing arm 20 by axle 5 23, and described axle 5 23 is on the swing arm 20 between described axle 4 22 and the described hook groove 21.Use the insulated hook rod to hook hook groove 21 and spur downwards, action bars 18 is moved to the left, thereby repeat the follow-up work process of the described three-phase load switch of the preceding paragraph.
Claims (9)
1. three-phase load switch, it is characterized in that: comprise base (1), switch (2), connecting rod (3), described switch (2) is three groups and is fixedly arranged on described base (1), and described connecting rod (3) connects three groups of switches (2), makes three groups of switches (2) can the synchronous interaction folding.
2. three-phase load switch according to claim 1 is characterized in that: described every group of switch (2) comprises base plate (4), movable insulator (5), fixed insulation (6), stiff end terminal block (7), movable end terminal block (8), conduction disconnecting link (9); Described base plate (4) is fixedly arranged on described base (1), described movable insulator (5) bottom is movably set in base plate (4) one ends by axle one (10), described fixed insulation (6) bottom is fixedly arranged on base plate (4) other end, described stiff end terminal block (7) is fixedly arranged on described movable insulator (5) top, described movable end terminal block (8) is fixedly arranged on described fixed insulation (6) top, described conduction disconnecting link (9) one ends are fixedly arranged on described stiff end terminal block (7), and described conduction disconnecting link (9) other end is connected with movable end terminal block (8) contact; Described connecting rod (3) connects the movable insulator (5) of described three groups of switches (2), and described three groups of activity insulators (5) can be rotated synchronously.
3. three-phase load switch according to claim 2, it is characterized in that: described three groups of base plates (4) all are vertically located in described base (1).
4. three-phase load switch according to claim 2 is characterized in that: the axle one (10) of described three groups of switches (2) all is set with pull bar (11), and described three groups of pull bars (11) flexibly connect by axle two (12) and described connecting rod (3).
5. three-phase load switch according to claim 4, it is characterized in that: described connecting rod (3) is provided with three side arms (13), described side arm (13) one ends surround fastening structure by the C font and are fixedly arranged on described connecting rod (3), and described side arm (13) other end and described axle two (12) flexibly connect.
6. three-phase load switch according to claim 2, it is characterized in that: described every group of switch also comprises arc-control device (14), described arc-control device (14) is fixedly arranged on described movable end terminal block (8).
7. three-phase load switch according to claim 6, it is characterized in that: described arc-control device (14) comprises arc-extinguish chamber (15), arc leading and suppressing body (16), striking contact (17), described arc leading and suppressing body (16) one ends are fixedly arranged on described movable end terminal block (8) and are connected with described movable end terminal block (8) conduction, described arc-extinguish chamber (15) parcel is arranged at outside the described arc leading and suppressing body (16), described striking contact (17) is arranged at described arc-extinguish chamber (15) and can rotates, described striking contact (17) one ends are positioned at described arc-extinguish chamber (15) and are connected with described arc leading and suppressing body (16) contact conduction, and described striking contact (17) other end is positioned at outside the described arc-extinguish chamber (15) and with described conduction disconnecting link (9) contact conduction and is connected.
8. three-phase load switch according to claim 4, it is characterized in that: any one or more groups the axle in described three groups of switches (2) one (10) is provided with action bars (18), and an end of described action bars (18) is by spools three (19) the reverse extending ends that are movably connected on described pull bar (11).
9. three-phase load switch according to claim 8, it is characterized in that: also comprise swing arm (20), described swing arm (20) end is provided with hook groove (21), described swing arm (20) is movably set in described base (1) by axle four (22), the other end of described action bars (18) five (23) is movably connected on swing arm (20) by axle, and described axle five (23) is positioned on the swing arm (20) between described axle four (22) and the described hook groove (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320047860 CN203118857U (en) | 2013-01-29 | 2013-01-29 | Three-phase load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320047860 CN203118857U (en) | 2013-01-29 | 2013-01-29 | Three-phase load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203118857U true CN203118857U (en) | 2013-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320047860 Expired - Lifetime CN203118857U (en) | 2013-01-29 | 2013-01-29 | Three-phase load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203118857U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077848A (en) * | 2013-01-29 | 2013-05-01 | 合保电气（芜湖）有限公司 | Three-phase load switch |
-
2013
- 2013-01-29 CN CN 201320047860 patent/CN203118857U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077848A (en) * | 2013-01-29 | 2013-05-01 | 合保电气（芜湖）有限公司 | Three-phase load switch |
| CN103077848B (en) * | 2013-01-29 | 2015-06-17 | 合保电气（芜湖）有限公司 | Three-phase load switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130807 Effective date of abandoning: 20150617 |
|
| RGAV | Abandon patent right to avoid regrant |