CN202353077U - Ring main unit and interlocking device thereof - Google Patents
Ring main unit and interlocking device thereof Download PDFInfo
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- CN202353077U CN202353077U CN 201120501907 CN201120501907U CN202353077U CN 202353077 U CN202353077 U CN 202353077U CN 201120501907 CN201120501907 CN 201120501907 CN 201120501907 U CN201120501907 U CN 201120501907U CN 202353077 U CN202353077 U CN 202353077U
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- depression bar
- support
- protruding axle
- main unit
- ring main
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Abstract
Disclosed is an interlocking device of a ring main unit, and comprises a transmission mechanism and a first interlocking mechanism, wherein the transmission mechanism comprises a transmission revolving shaft, an interlocking pull rod and a locking pull rod; and the first interlocking mechanism comprises a support, a crank arm, a first press rod, a protruding shaft, a blocking member and a lever. The crank arm and the first press rod are arranged on the support in a penetrating mode, wherein one end of the crank arm is fixedly connected with the transmission revolving shaft; the protruding shaft can be rotatablely arranged above the first press rod, abuts against the first press rod, and is rotated to drive the first press rod to move; the blocking member is arranged on the support in a penetrating mode, movably connected with the other end of the crank arm, and can shield the protruding shaft; the transmission revolving shaft is rotated to enable the blocking member to move relative to the protruding shaft; and the lever can be rotatablely arranged on the support in a protruding mode, one end of the lever is fixedly connected with the first press rod, and the other end of the lever is fixedly connected with the locking pull rod. The interlocking device of the ring main unit must be operated according to a certain sequence, therefore misoperation can be avoided. In addition, the utility model provides the ring main unit.
Description
[technical field]
The utility model relates to electric switch equipment, particularly relates to a kind of ring main unit and interlock thereof.
[background technology]
Ring main unit is that one group of high voltage switchgear is contained in the steel sheet metal cabinet or makes the electric equipment of assembly unit compartment ring network power supply unit; Usually adopt breaker operator normal current, excision short circuit current, in the time of breaker open operation, will guarantee that also circuit breaker and electric current break off fully; This must relate to the order of the separating brake and the combined floodgate of each switch; Make the operator be easy to operate miss, the damage that this not only can cause ring main unit also can threaten to personal safety.
[utility model content]
Based on this, be necessary to provide a kind of interlock that can prevent the ring main unit of faulty operation.
A kind of interlock of ring main unit comprises:
Transmission mechanism comprises:
Drive shaft;
The interlocking pull bar is fixedly connected with said drive shaft, and said interlocking pull bar drives said drive shaft and rotates; And
The locking pull bar; And
First interlocking device comprises:
Support;
First depression bar is arranged on the said support;
Protruding axle rotatably is arranged at the top of said first depression bar, and said protruding axle can compress with said first depression bar, rotates said protruding axle and promotes said first depression bar and move;
Block piece is arranged on the said support, and an end of said block piece is fixedly connected with said drive shaft, and said block piece can block said protruding axle, rotates said drive shaft and said block piece is moved relative to said protruding axle; And
Lever is arranged on the said support rotationally, and the two ends of said lever are fixedly connected with said locking pull bar and said first depression bar respectively.
The interlock of above-mentioned ring main unit is in operation; Have only earlier the interlocking pull bar is applied a power, the interlocking pull bar drives shackle rod and rotates, and drive shaft promotes block piece and moves; Making block piece move and make protruding axle relative to protruding exposes; Could rotate protruding spool this moment and promote first depression bar and move, the end that lever is connected with first depression bar moves with first depression bar, the end perk that lever is connected with the locking pull bar; Because the effect of blocking of block piece; Reduction the time can only be rotated protruding axle earlier, make protruding axle break away from first depression bar after, could the application of force make the interlocking pull bar drive drive shaft baffle plate is resetted; Therefore; Must operate in a certain order during operation, therefore, the interlock of above-mentioned ring main unit can prevent faulty operation.
In a preferred embodiment, said first interlocking device also comprise be arranged on the said lever, two ends are individually fixed in the pivot pin on the relative sidewall of said support two, said lever can be around said pivot pin rotation.
In a preferred embodiment, said first depression bar is provided with T shape portion away from an end of said support, is arranged with elastic component on said first depression bar, and said elastic component is held between said T shape portion and the said support and an elastic-restoring force is provided.
In a preferred embodiment, the connecting lever that said first interlocking device comprises also that an end is fixedly connected with said drive shaft, the other end and said block piece flexibly connect.
In a preferred embodiment, said first interlocking device comprises also and is arranged on the said support and first indicating arm that is connected with the said first depression bar vertical fixing that said interlock also comprises:
Second interlocking device comprises:
Bearing;
Second depression bar is arranged on the said bearing;
Operating axis rotatably is arranged at the top of said second depression bar, is arranged with first cam on the said operating axis regularly, and said first cam and said second depression bar can compress, and rotate said operating axis and make said first cam promote said second depression bar and move; And
Second indicating arm is arranged on the said bearing, and said second indicating arm is connected with the said second depression bar vertical fixing; And
Shell is accommodated said first interlocking device and said second interlocking device, and said shell comprises:
Panel, offer with corresponding first handle hole in position of said protruding axle and with corresponding second handle hole in position of said operating axis; And
Slide plate; Be mounted slidably in said panel inboard, a side of said first indicating arm and said slide plate is butt separably, and makes said slide plate block said second handle hole; But the opposite side butt of said second indicating arm and said slide plate, and make said slide plate block said first handle hole.
In a preferred embodiment, also offer first indicator hole and second indicator hole on the said panel, said first indicator hole is corresponding with the position of said first indicating arm, and said second indicator hole is corresponding with the position of said second indicating arm.
In a preferred embodiment; Also offer location hole on the said panel; The edge of said location hole is provided with and first lug; Offer first through hole on said first lug, said slide plate is provided with and passes said location hole and second lug range upon range of with said first lug, offers on said second lug and corresponding second through hole of said first through hole.
Be necessary to provide a kind of ring main unit that can prevent faulty operation in addition.
A kind of ring main unit comprises:
Interlock comprises the transmission mechanism and first interlocking device,
Said transmission mechanism comprises:
Drive shaft;
The interlocking pull bar is fixedly connected with said drive shaft, and said interlocking pull bar drives said drive shaft and rotates; And
The locking pull bar; And
Said first interlocking device comprises:
Support;
First depression bar is arranged on the said support;
Protruding axle rotatably is arranged at the top of said first depression bar, and said protruding axle can compress with said first depression bar, rotates said protruding axle and promotes said first depression bar and move;
Block piece is arranged on the said support, and an end of said block piece is fixedly connected with said drive shaft, and said block piece can block said protruding axle, rotates said drive shaft and said block piece is moved relative to said protruding axle; And
Lever is arranged on the said support rotationally, and the two ends of said lever are fixedly connected with said locking pull bar and said first depression bar respectively; And
Cabinet is accommodated said interlock, is equiped with bus in the said cabinet;
Isolating switch is arranged in the said cabinet, and said isolating switch and said bus electrically connect, and said isolating switch is connected with said protruding axle, the separating brake and the combined floodgate of the said isolating switch of said protruding axle control; And
Circuit breaker; Be arranged in the said cabinet; Said circuit breaker and said isolating switch electrically connect, and said circuit breaker is provided with switch shaft that is fixedly connected with said interlocking pull bar and the divide-shut brake locking that is fixedly connected with said locking pull bar, and said switch shaft is rotatably controlled the separating brake and the combined floodgate of said circuit breaker; Rotate said switch shaft and promote said interlocking pull bar motion, the electric connection and the disconnection of said circuit breaker and said isolating switch controlled in said divide-shut brake locking.
The interlocking pull bar of the interlock of above-mentioned ring main unit is fixedly connected with the switch shaft of circuit breaker, and the locking pull bar is fixedly connected with the divide-shut brake locking, the divide-shut brake of protruding axle control isolating switch; In operating breaker and isolating switch separating brake, the rotary switch axle makes breaker open operation, and switch shaft promotes the interlocking pull bar; The interlocking pull bar drives drive shaft and rotates; Drive shaft promotes block piece and moves, and could rotate protruding axle this moment, in the time of with the isolating switch separating brake; Promote first depression bar and move, and lever drives locking pull bar is broken off the divide-shut brake locking; When circuit breaker and isolating switch close a floodgate, after the protruding axle of operation earlier closes a floodgate isolating switch, could close a floodgate by operating breaker, otherwise protruding by the blocking of block piece, and make isolating switch not close a floodgate.Therefore; Because the effect of blocking of block piece makes the switch shaft of circuit breaker can only operate separating brake or combined floodgate in a certain order with protruding, also avoided isolating switch on-load divide-shut brake and the arc fault that causes; Therefore, above-mentioned ring main unit can prevent faulty operation.
In a preferred embodiment, said first interlocking device comprises also and is arranged on the said support and first indicating arm that is connected with the said first depression bar vertical fixing that said interlock also comprises:
Second interlocking device comprises:
Bearing;
Second depression bar is arranged on the said bearing;
Operating axis rotatably is arranged at the top of said second depression bar, is arranged with first cam on the said operating axis regularly, and said first cam and said second depression bar can compress, and rotate said operating axis and make said first cam promote said second depression bar and move; And
Second indicating arm is arranged on the said bearing, and said second indicating arm is connected with the said second depression bar vertical fixing; And
Shell is accommodated said first interlocking device and said second interlocking device, and said shell comprises:
Panel offers and corresponding first handle hole in position of said protruding axle and corresponding second handle hole in position of said operating axis; And
Slide plate; Be mounted slidably in said panel inboard, a side of said first indicating arm and said slide plate is butt separably, makes said slide plate block said second handle hole; But the opposite side butt of said first indicating arm and said slide plate makes said slide plate block said first handle hole;
Said ring main unit also comprise be arranged in the said cabinet, with the earthed switch that said circuit breaker electrically is connected, said earthed switch is connected with said operating axis, said operating axis is controlled the ground connection and the disconnection of said earthed switch.
In a preferred embodiment; Said second interlocking device also comprises the 3rd depression bar that is arranged on the said bearing; Also be covered with door-plate on the said cabinet, said the 3rd depression bar is provided with the support division that can support with said door-plate, also is arranged with second cam that can compress with said the 3rd depression bar on the said operating axis regularly; Rotate said operating axis and make said second cam compress said the 3rd depression bar, move and promote said the 3rd depression bar.
[description of drawings]
Fig. 1 is the ring main unit structural representation of embodiment one;
Fig. 2 is the structural representation of the interlock of ring main unit shown in Figure 1;
Fig. 3 is the structural representation of another angle of the interlock shown in 2;
Fig. 4 has omitted the structural representation of another angle of protruding axle for first interlocking device of the interlock of ring main unit shown in Figure 1;
Fig. 5 is the ring main unit structural representation of embodiment two;
Fig. 6 has omitted the structural representation of shell for the interlock of ring main unit shown in Figure 5;
Fig. 7 has omitted the structural representation of shell for the interlock of ring main unit shown in Figure 5;
Fig. 8 is the structural representation of another angle of interlock shown in Figure 7;
Fig. 9 has omitted the structural representation of operating axis for second interlocking device of interlock shown in Figure 7;
Figure 10 is the structural representation of another angle of second interlocking device shown in Figure 9
Figure 11 is the structural representation of shell of the interlock of ring main unit shown in Figure 5;
Figure 12 is the structural representation of another angle of shell shown in Figure 11;
Figure 13 is the structural representation of another angle of shell shown in Figure 11;
Figure 14 is the structural representation of another angle of shell shown in Figure 11.
[embodiment]
Below in conjunction with accompanying drawing and specific embodiment ring main unit and interlock thereof are further specified.
As shown in Figure 1, the ring main unit 100 of embodiment one comprises interlock 110, cabinet 120, isolating switch 130 and circuit breaker 140.
Please consult Fig. 2 and Fig. 3 in the lump, interlock 110 comprises the transmission mechanism 112 and first interlocking device 114.
Transmission mechanism 112 comprises drive shaft 1122, interlocking pull bar 1124 and locking pull bar 1126.Drive shaft 1122 is roughly strip.Drive shaft 1122 is used for power is passed to first interlocking device 114, and drives 114 motions of first interlocking device.Interlocking pull bar 1124 is roughly strip.Interlocking pull bar 1124 is fixedly connected with drive shaft 1122, and interlocking pull bar 1124 drives drive shaft 1122 and rotates.Locking pull bar 1126 also is a strip.
First interlocking device 114 comprises support 1141, connecting lever 1142, the first depression bars 1143, protruding axle 1144, block piece 1145 and lever 1146.
Connecting lever 1142 is arranged on the support 1141.One end of connecting lever 1142 is fixedly connected with drive shaft 1122.
Please consult Fig. 4 in the lump, first depression bar 1143 is arranged on the support 1141.First depression bar 1143 is provided with on T shape portion 11432, the first depression bars 1143 away from an end of support 1141 and is arranged with elastic component 11434, and elastic component 11434 is held between T shape portion 11432 and the support 1141, and an elastic restoring force is provided.Elastic component 11434 can be resilient sleeve, spring or shell fragment, is preferably spring.
In the present embodiment, first interlocking device 112 also comprise be arranged on the lever 1146, two ends are individually fixed in the pivot pin 1147 on 1141 liang of relative sidewalls of support.In the present embodiment, pivot pin 1147 is positioned at the middle part of lever 1146, and lever 1146 can be around pivot pin 1147 rotations.
Isolating switch 130 is arranged in the cabinet 120.Isolating switch 130 electrically connects with bus (figure is mark not).In the present embodiment, isolating switch 130 is installed on top 122.Isolating switch 130 is connected with protruding axle 1144, the separating brake and the combined floodgate of protruding axle 1144 control isolating switches 130.
The interlock 110 of above-mentioned ring main unit 100 realizes that isolating switch 130 is following with the interlocked operation of circuit breaker 140:
When isolating switch 130 all closed a floodgate with circuit breaker 140, divide-shut brake locking 144 was closed a floodgate, and protruding axle 1144 separates with first depression bar 1143.
The interlocking pull bar 1124 of the interlock 110 of above-mentioned ring main unit 100 is fixedly connected with the switch shaft 142 of circuit breaker 140; Locking pull bar 1126 is fixedly connected with divide-shut brake locking 142, and the divide-shut brake of protruding axle 1144 control isolating switches 130 is in operating breaker 140 and isolating switch 130 separating brakes; Rotary switch axle 142 makes circuit breaker 140 separating brakes; Switch shaft 142 promotes interlocking pull bar 1124, and interlocking pull bar 1124 drives drive shaft 1122 and rotates, and drive shaft 1122 promotes block piece 1145 and moves; Could rotate protruding axle 1144 this moment; In the time of with isolating switch 130 separating brakes, promote first depression bar 1143 and move, and make lever 1146 drive locking pull bar 1126 divide-shut brake locking 142 disconnections; When circuit breaker 140 closes a floodgate with isolating switch 130, after the protruding axle 1144 of operation earlier closes a floodgate isolating switch 130, could close a floodgate by operating breaker 140, otherwise protruding 1144 by the blocking of block piece 1145, and make isolating switch 130 not close a floodgate.Therefore; Because the effect of blocking of block piece 1144; Make the switch shaft 142 of circuit breaker 140 can only operate separating brake or combined floodgate in a certain order with protruding axle 1144; The arc fault of also having avoided isolating switch 130 on-load divide-shut brakes and having caused, therefore, above-mentioned ring main unit 100 can prevent faulty operation.
Be appreciated that connecting lever 1142 can omit, this moment, block piece 1145 was fixedly connected with drive shaft 1122, promoted block piece 1145 by drive shaft 1122 rotations and moved.
As shown in Figure 5, the ring main unit 200 of embodiment two comprises interlock 210, cabinet 220, isolating switch 230, circuit breaker 240 and earthed switch 250.
Please consult Fig. 6 in the lump, interlock 210 comprises transmission mechanism 212, first interlocking device 214, second interlocking device 216 and shell 218.
Please consult Fig. 7 and Fig. 8 in the lump, transmission mechanism 212 is roughly the same with the transmission mechanism 112 among the embodiment one, comprises drive shaft 2122, interlocking pull bar 2124 and locking pull bar 2126.
First interlocking device 214 is roughly the same with first interlocking device 114 among the embodiment one, comprises support 2141, connecting lever 2142, the first depression bars 2143, protruding axle 2144, block piece 2145 and lever 2146.In the present embodiment, first interlocking device 214 also comprises and is arranged in first indicating arm 2147 that is connected on the support 2141, with first depression bar, 2143 vertical fixing.
Please consult Fig. 9 and Figure 10 in the lump, second interlocking device 216 comprises bearing 2162, second depression bar, 2164 operating axis 2165 and second indicating arm 2166.
Second indicating arm 2166 is arranged on the bearing 2162, is connected with second depression bar, 2164 vertical fixing.
In the present embodiment, second interlocking device 216 also comprises the 3rd depression bar 2168 that is arranged on the bearing 2162, can compresses with second cam 21654.In the present embodiment, the 3rd depression bar 2168 is arranged at the front of second depression bar 2164, and second indicating arm 2166 that is connected with second depression bar, 2164 vertical fixing passes the 3rd depression bar 2168.The 3rd depression bar 2168 is provided with support division 21682.In the present embodiment, support division 21682 is arranged at the lower end of the 3rd depression bar 2168.Be arranged with elastic component on the 3rd depression bar 2168, and an elastic-restoring force be provided for the 3rd depression bar 2168.Rotary manipulation axle 2165 makes second cam 21654 compress the 3rd depression bar 2168, moves and promote the 3rd depression bar 2168.In the present embodiment; First cam 21652 and second cam 21654 are with operating axis 2165 rotations; When first cam 21652 compresses with second depression bar 2164 mutually; Second cam 21654 breaks away from the 3rd depression bar 2168, and when first cam 21652 and 2164 disengagings of second depression bar, second cam 21654 compresses with the 3rd depression bar 2168 mutually.
Please consult Figure 11,12,13 and Figure 14 in the lump, shell 218 is installed with first interlocking device 214 and second interlocking device 216.Shell 218 comprises panel 2182 and slide plate 2184.
Offer on the panel 2182 with corresponding first handle hole 21821 in the position of protruding axle 2144 and with corresponding second handle hole 21822 in position of operating axis 2165.In the present embodiment, also offer first indicator hole 21823 on the panel 2182 and second indicator hole, 21824, the first indicator holes 21823 are corresponding with the position of first indicating arm 2147, second indicator hole 21824 is corresponding with the position of second indicating arm 2166.In the present embodiment, also offer location hole 21825 on the panel 2182, and the edge of location hole 21825 is provided with on first lug, 21826, the first lugs 21826 and offers first through hole 218262.
Slide plate 2184 is mounted slidably in the inboard of panel 2182.In the present embodiment, on the slide plate 2184 location hole is set, is provided with the alignment pin that is complementary with location hole, thereby slide plate 2184 relative panels 2182 are slided in panel 2182 and slide plate 2184 relative one sides.And can also limit the length of location hole, thereby limit the sliding distance of slide plate 2184 relative panels 2182, slide plate 2184 can not come off from panel 2182.Slide plate 2184 relative panels 2182 slidably, thereby can block first handle hole 21821 and second handle hole 21822.One side of first indicating arm 2147 and slide plate 2184 is butt separably, makes slide plate 2184 block second handle hole 21822.In the present embodiment, isolating switch 230 closes a floodgate with circuit breaker 240, and earthed switch 250 breaks off, and first indicating arm 2147 connects with slide plate 2184, and blocks second handle hole 21822, makes operating axis 2165 not operate; When operating breaker 240 separating brakes; Rotate protruding axle 2144 and promote 2143 motions of first depression bar; First indicating arm 2147 is with 2143 motions of first depression bar, and first indicating arm 2147 breaks away from sliding skateboard 2184 with slide plate 2184; Second handle hole 21822 is not blocked, thereby can be from 2165 operations of 21822 pairs of operating axis of second handle hole.But the opposite side butt of second indicating arm 2166 and slide plate 2184 makes slide plate 2184 block first handle hole 21821.In the present embodiment, isolating switch 230 closes a floodgate with circuit breaker 240, and when earthed switch 250 broke off, second indicating arm 2166 separated with slide plate 2184; When operational grounding switch 250 ground connection; Compress mutually with second depression bar 2164 through rotary manipulation axle 2165, the first cams 21652, and promote 2164 motions of second depression bar; Second indicating arm 2166 is with 2164 motions of second depression bar; At this moment, the opposite side of second indicating arm 2166 and slide plate 2184 connects and makes slide plate 2184 block first handle hole 21822, makes protruding axle 2144 not operate.In the present embodiment, slide plate 2184 be provided with pass location hole 21825, with range upon range of second lug, 21842, the second lugs 21842 of first lug 21826 on offer and first through hole, 218262 corresponding second through holes 218422.In the present embodiment; The length of first lug 21826 is greater than second lug 21842; First through hole 218262 is four; Second through hole 218422 is two, and the equal and opposite in direction of first through hole 218262 and second through hole 218422 is provided with first through hole 218262 and second through hole 218422 and can imposes restrictions on slide plate 2184 panel 2182 slips relatively.
Isolating switch 230 is roughly the same with the isolating switch 130 of embodiment one.Isolating switch 230 is connected with protruding axle 2144, through the separating brake and the combined floodgate of protruding axle 2144 control isolating switches 230.
The isolating switch 230 of above-mentioned ring main unit 200, circuit breaker 240 and earthed switch 250 realize that interlocked operation is following:
When circuit breaker 240 combined floodgates, isolating switch 230 closes a floodgate, when earthed switch 250 breaks off; Second cam 21654 compresses with the 3rd depression bar 2168 mutually, and the support division 21682 of the 3rd depression bar 2168 lower ends offsets with the door-plate of cabinet 220 (figure is mark not), and door-plate (figure is mark not) can not be opened; And this moment, protruding axle 2144 does not compress with first depression bar 2143, and first cam 21654 does not compress with second depression bar 2164 yet; And a side of first indicating arm 2147 and slide plate 2184 connects, and second indicating arm 2166 connects with slide plate 2184, makes slide plate 2184 to slide towards first indicating arm, 2147 directions; Can not slide towards second indicating arm, 2166 directions; And making slide plate 2184 block second handle hole 21822, operating axis 2165 can not be operated, promptly can not operational grounding switch 230 ground connection.Because second indicating arm 2166 does not connect with slide plate 2184, first handle hole 21821 is not blocked, but block piece 2145 blocks protruding axle 2144, makes protruding axle 2144 not operate, and promptly isolating switch 230 can not separating brake.
Operating breaker 240 separating brakes: the switch shaft 242 of operator's rotary breaker device 240, with circuit breaker 240 separating brakes, switch shaft 242 pull bar 2124 jack-up of will interlocking; Interlocking pull bar 2124 drives drive shaft 2122 and rotates, and drive shaft 2122 promotes connecting lever 2142 motions, and connecting lever 2142 promotes block piece 2145 and moves; At this moment, block piece 2145 does not block protruding axle 2144, and the operator is through the protruding axle 2144 of first handle hole, 21821 rotations; Make isolating switch 230 separating brakes, simultaneously protruding axle 2144 compresses with first depression bar 2143 mutually, and promotes first depression bar 2143 and move; The end that lever 2146 is connected with first depression bar 2143 is with 2143 motions of first depression bar, and the end that lever 2146 is connected with locking pull bar 2126 is upturned, and drive locking pull bar 2126 moves upward; The divide-shut brake locking 222 that is fixedly connected with locking pull bar 2126 is pulled up, divide-shut brake locking 222 separating brakes, and circuit breaker 240 breaks off with electric current fully; And when first depression bar 2143 moved, first indicating arm 2147 moved with first depression bar 2143, and this moment first, indicating arm 2147 broke away from slide plate 2184; Slide plate 2184 can slide towards the direction of first indicating arm 2147, and first handle hole 21821 is blocked, and the operator is towards the direction sliding skateboard 2184 of first indicating arm 2147; This moment, the operator can pass through second handle hole, 21822 rotary manipulation axles 2165, made earthed switch 250 ground connection, and operating axis 2165 drives first cam 21652 and 21654 rotations of second cam simultaneously; Second cam 21654 leaves the 3rd depression bar 2168, the three depression bars 2168 and resets, and the support division 21682 of the 3rd depression bar 2168 lower ends is also with 2168 motions of the 3rd depression bar; Support division 21682 disengaging door-plates this moment (scheming mark), door-plate (figure is mark not) can be opened, and can make things convenient for the maintainer that ring main unit 200 is overhauled at this moment; Meanwhile, first cam 21652 compresses with second depression bar 2164 mutually, and promotes second depression bar 2164 and move; Second indicating arm 2166 is with 2164 motions of second depression bar, and second indicating arm 2166 leaves slide plate 2184, and slide plate 2184 can slide towards second handle hole, 21822 directions; Slide plate 2184 blocks first handle hole 21821, makes protruding axle 2144 to operate.
In the above-mentioned ring main unit 200, the switch shaft 242 of control circuit breaker 240 separating brakes and combined floodgate is fixedly connected with interlocking pull bar 2124, the separating brake and the combined floodgate of the protruding axle 2144 control isolating switches 230 of interlock 210; Operating axis 2165 control earthed switch 250 ground connection and disconnections; Since first indicating arm 2147 and second indicating arm 2166 respectively with slide plate 2184 butts, controlled of the block effect of 2184 pairs of protruding axles 2144 of slide plate with operating axis 2165, isolating switch 230 and earthed switch 250 must be operated in order; And the effect of blocking of 2145 pairs of protruding axles 2144 of block piece; Make isolating switch 230 and circuit breaker 240 also must operate in order, thereby make operator separating brake and combined floodgate in order, thereby prevented operator's faulty operation; Therefore, the effect of above-mentioned ring main unit 200 with the faulty operation of preventing.
Be appreciated that connecting lever 2142 can omit, this moment, block piece 2145 was fixedly connected with drive shaft 2122, promoted block piece 2145 by drive shaft 2122 rotations and moved.
The above embodiment has only expressed several kinds of execution modes of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection range of the utility model.Therefore, the protection range of the utility model patent should be as the criterion with accompanying claims.
Claims (10)
1. the interlock of a ring main unit is characterized in that, comprising:
Transmission mechanism comprises:
Drive shaft;
The interlocking pull bar is fixedly connected with said drive shaft, and said interlocking pull bar drives said drive shaft and rotates; And
The locking pull bar;
First interlocking device comprises:
Support;
First depression bar is arranged on the said support;
Protruding axle rotatably is arranged at the top of said first depression bar, and said protruding axle can compress with said first depression bar, rotates said protruding axle and promotes said first depression bar and move;
Block piece is arranged on the said support, and an end of said block piece is fixedly connected with said drive shaft, and said block piece can block said protruding axle, rotates said drive shaft and said block piece is moved relative to said protruding axle; And
Lever is arranged on the said support rotationally, and the two ends of said lever are fixedly connected with said locking pull bar and said first depression bar respectively.
2. the interlock of ring main unit according to claim 1 is characterized in that, said first interlocking device also comprise be arranged on the said lever, two ends are individually fixed in the pivot pin on the relative sidewall of said support two, said lever can be around said pivot pin rotation.
3. the interlock of ring main unit according to claim 1; It is characterized in that; Said first depression bar is provided with T shape portion away from an end of said support, is arranged with elastic component on said first depression bar, and said elastic component is held between said T shape portion and the said support and an elastic-restoring force is provided.
4. the interlock of ring main unit according to claim 1 is characterized in that, the connecting lever that said first interlocking device comprises also that an end is fixedly connected with said drive shaft, the other end and said block piece flexibly connect.
5. the interlock of ring main unit according to claim 1 is characterized in that, said first interlocking device comprises also and be arranged on the said support and first indicating arm that is connected with the said first depression bar vertical fixing that the interlock of said ring main unit also comprises:
Second interlocking device comprises:
Bearing;
Second depression bar is arranged on the said bearing;
Operating axis rotatably is arranged at the top of said second depression bar, is arranged with first cam on the said operating axis regularly, and said first cam and said second depression bar can compress, and rotate said operating axis and make said first cam promote said second depression bar and move; And
Second indicating arm is arranged on the said bearing, and said second indicating arm is connected with the said second depression bar vertical fixing; And
Shell is accommodated said first interlocking device and said second interlocking device, and said shell comprises:
Panel, offer with corresponding first handle hole in position of said protruding axle and with corresponding second handle hole in position of said operating axis; And
Slide plate; Be mounted slidably in said panel inboard, a side of said first indicating arm and said slide plate is butt separably, and makes said slide plate block said second handle hole; But another example butt of said second indicating arm and said slide plate, and make said slide plate block said first handle hole.
6. the interlock of ring main unit according to claim 5; It is characterized in that; Also offer first indicator hole and second indicator hole on the said panel, said first indicator hole is corresponding with the position of said first indicating arm, and said second indicator hole is corresponding with the position of said second indicating arm.
7. the interlock of ring main unit according to claim 5; It is characterized in that; Also offer location hole on the said panel, the edge of said location hole is provided with and first lug, offers first through hole on said first lug; Said slide plate is provided with and passes said location hole and second lug range upon range of with said first lug, offers on said second lug and corresponding second through hole of said first through hole.
8. a ring main unit is characterized in that, comprising:
Interlock comprises the transmission mechanism and first interlocking device,
Said transmission mechanism comprises:
Drive shaft;
The interlocking pull bar is fixedly connected with said drive shaft, and said interlocking pull bar drives said drive shaft and rotates; And
The locking pull bar; And
Said first interlocking device comprises:
Support;
First depression bar is arranged on the said support;
Protruding axle rotatably is arranged at the top of said first depression bar, and said protruding axle can compress with said first depression bar, rotates said protruding axle and promotes said first depression bar and move;
Block piece is arranged on the said support, and an end of said block piece is fixedly connected with said drive shaft, and said block piece can block said protruding axle, rotates said drive shaft and said block piece is moved relative to said protruding axle; And
Lever is arranged on the said support rotationally, and the two ends of said lever are fixedly connected with said locking pull bar and said first depression bar respectively; And
Cabinet is accommodated said interlock, is equiped with bus in the said cabinet;
Isolating switch is arranged in the said cabinet, and said isolating switch and said bus electrically connect, and said isolating switch is connected with said protruding axle, the separating brake and the combined floodgate of the said isolating switch of said protruding axle control; And
Circuit breaker; Be arranged in the said cabinet; Said circuit breaker and said isolating switch electrically connect, and said circuit breaker is provided with switch shaft that is fixedly connected with said interlocking pull bar and the divide-shut brake locking that is fixedly connected with said locking pull bar, and said switch shaft is rotatably controlled the separating brake and the combined floodgate of said circuit breaker; Rotate said switch shaft and promote said interlocking pull bar motion, the electric connection and the disconnection of said circuit breaker and said isolating switch controlled in said divide-shut brake locking.
9. ring main unit according to claim 8 is characterized in that, said first interlocking device comprises also and be arranged on the said support and first indicating arm that is connected with the said first depression bar vertical fixing that said interlock also comprises:
Second interlocking device comprises:
Bearing;
Second depression bar is arranged on the said bearing;
Operating axis rotatably is arranged at the top of said second depression bar, is arranged with first cam on the said operating axis regularly, and said first cam and said second depression bar can compress, and rotate said operating axis and make said first cam promote said second depression bar and move; And
Second indicating arm is arranged on the said bearing, and said second indicating arm is connected with the said second depression bar vertical fixing; And
Shell is accommodated said first interlocking device and said second interlocking device, and said shell comprises:
Panel, offer with corresponding first handle hole in position of said protruding axle and with corresponding second handle hole in position of said operating axis; And
Slide plate; Be mounted slidably in said panel inboard, a side of said first indicating arm and said slide plate is butt separably, makes said slide plate block said second handle hole; But the opposite side butt of said first indicating arm and said slide plate makes said slide plate block said first handle hole;
Said ring main unit also comprise be arranged in the said cabinet, with the earthed switch that said circuit breaker electrically is connected, said earthed switch is connected with said operating axis, said operating axis is controlled the ground connection and the disconnection of said earthed switch.
10. ring main unit according to claim 9; It is characterized in that said second interlocking device also comprises the 3rd depression bar that is arranged on the said bearing, also be covered with door-plate on the said cabinet; Said the 3rd depression bar is provided with the support division that can support with said door-plate; Also be arranged with second cam that can compress on the said operating axis regularly, rotate said operating axis and make said second cam compress said the 3rd depression bar, move and promote said the 3rd depression bar with said the 3rd depression bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120501907 CN202353077U (en) | 2011-12-05 | 2011-12-05 | Ring main unit and interlocking device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120501907 CN202353077U (en) | 2011-12-05 | 2011-12-05 | Ring main unit and interlocking device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353077U true CN202353077U (en) | 2012-07-25 |
Family
ID=46542042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120501907 Expired - Fee Related CN202353077U (en) | 2011-12-05 | 2011-12-05 | Ring main unit and interlocking device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202353077U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166143A (en) * | 2012-12-24 | 2013-06-19 | 刘晓颖 | Solid dead ring main unit |
| CN103161363A (en) * | 2012-12-24 | 2013-06-19 | 刘晓颖 | Door lock mechanism |
| CN103187189A (en) * | 2013-04-22 | 2013-07-03 | 北京杰远电气有限公司 | Circuit breaker interlocking device |
| CN105826101A (en) * | 2015-01-22 | 2016-08-03 | Ls产电株式会社 | Interlock device of ring main unit |
| CN106098436A (en) * | 2016-08-12 | 2016-11-09 | 北京杰远电气有限公司 | Station interlock for switch cubicle |
| EP3118875A1 (en) * | 2015-07-14 | 2017-01-18 | LSIS Co., Ltd. | Interlock device of ring main unit |
| CN106783292A (en) * | 2016-12-27 | 2017-05-31 | 浙江阿海珐电气有限公司 | A kind of earthed switch interlock and the ring main unit with it |
| CN108257804A (en) * | 2018-03-12 | 2018-07-06 | 川开电气有限公司 | A kind of novel looped network cabinet interlock |
| CN112802705A (en) * | 2021-01-28 | 2021-05-14 | 杭州施江银电气成套有限公司 | Earthing switch operation axle construction |
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- 2011-12-05 CN CN 201120501907 patent/CN202353077U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166143A (en) * | 2012-12-24 | 2013-06-19 | 刘晓颖 | Solid dead ring main unit |
| CN103161363A (en) * | 2012-12-24 | 2013-06-19 | 刘晓颖 | Door lock mechanism |
| 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 |
| CN103187189A (en) * | 2013-04-22 | 2013-07-03 | 北京杰远电气有限公司 | Circuit breaker interlocking device |
| CN105826101A (en) * | 2015-01-22 | 2016-08-03 | Ls产电株式会社 | Interlock device of ring main unit |
| CN105826101B (en) * | 2015-01-22 | 2018-02-23 | Ls产电株式会社 | The interlock of ring main unit |
| EP3118875A1 (en) * | 2015-07-14 | 2017-01-18 | LSIS Co., Ltd. | Interlock device of ring main unit |
| US10526826B2 (en) | 2015-07-14 | 2020-01-07 | Lsis Co., Ltd. | Interlock device of ring main unit |
| CN106098436A (en) * | 2016-08-12 | 2016-11-09 | 北京杰远电气有限公司 | Station interlock for switch cubicle |
| CN106783292A (en) * | 2016-12-27 | 2017-05-31 | 浙江阿海珐电气有限公司 | A kind of earthed switch interlock and the ring main unit with it |
| CN108257804A (en) * | 2018-03-12 | 2018-07-06 | 川开电气有限公司 | A kind of novel looped network cabinet interlock |
| CN108257804B (en) * | 2018-03-12 | 2023-07-14 | 川开电气有限公司 | Ring main unit interlocking device |
| CN112802705A (en) * | 2021-01-28 | 2021-05-14 | 杭州施江银电气成套有限公司 | Earthing switch operation axle construction |
| CN112802705B (en) * | 2021-01-28 | 2023-02-28 | 杭州施江银电气成套有限公司 | Earthing switch operation axle construction |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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