Circuit breaker interlocking assembly of electric operating mechanism

Abstract

The utility model relates to a circuit breaker interlocking assembly of an electric operating mechanism, which comprises a mechanism frame, an interlocking shaft, an interlocking plate, an interlocking sheet, a locking sliding plate, a reset tension spring, an interlocking sliding plate and a microswitch arranged on a front panel and matched with the interlocking sliding plate. The interlocking sliding plate is arranged on the front panel and shields the grounding operation hole and the isolation operation hole of the front panel, one end of the interlocking sliding plate is provided with a locking hole matched with the locking sliding plate, and when the circuit breaker main shaft rotates to a switching-on position, the interlocking plate acts along with the circuit breaker main shaft and drives the interlocking shaft to rotate. The interlocking shaft drives the locking sliding plate to act through the interlocking piece, one end of the locking sliding plate is inserted into the locking hole of the interlocking sliding plate, and locking of the locking sliding plate and the interlocking sliding plate is achieved. The utility model has the advantages of simple structure, stable and reliable performance, reliable interlocking and convenient assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to an operating mechanism, in particular to a circuit breaker interlocking assembly of electric operating mechanism. BACKGROUND

[0002] The five-prevention interlocking operating mechanism is widely applied to high-voltage switch cabinet, looped network cabinet and other electric power equipment, and ensures that misoperation does not occur in various operating processes, and guarantees the safe operation of the electric power system and the safety of personnel. The five-prevention function mainly includes: 1. preventing misoperation of circuit breaker: ensuring that the circuit breaker can only be operated in the correct state, avoiding equipment damage or safety accidents caused by misoperation. 2. preventing live load operation of disconnecting switch: before the operation of the disconnecting switch, it is necessary to ensure that the circuit breaker is in the open position, avoiding live load operation. 3. preventing live line hanging (closing) ground wire (ground switch): before the ground switch is closed, it is necessary to ensure that the equipment is in the power-off state, avoiding live operation. 4. preventing live line closing of circuit breaker: ensuring that the circuit breaker cannot be closed for power transmission when the ground switch is in the closed state, avoiding live grounding of the equipment. 5. preventing misentry into live interval: when the equipment is live, preventing personnel from misentering the dangerous area, ensuring the safety of personnel. The existing circuit breaker interlocking assembly of five-prevention interlocking operating mechanism has a complex structure design, and has defects of unreliable performance, unreliable interlocking and complicated assembly. SUMMARY

[0003] The utility model aims at overcoming the defects of prior art, and provides a circuit breaker interlocking assembly of electric operating mechanism which has simple structure, stable and reliable performance, reliable interlocking and convenient assembly.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts a circuit breaker interlocking assembly of electric operating mechanism, which comprises a mechanism frame, an interlocking shaft rotatably arranged on the mechanism frame, an interlocking plate which is movably arranged on one end of the interlocking shaft and movably cooperates with a circuit breaker main shaft, an interlocking piece which is movably arranged on the other end of the interlocking shaft, a locking slide plate which is slidably arranged on a front panel of the mechanism frame and corresponds to the interlocking piece, a reset tension spring which is arranged between the locking slide plate and the front panel, an interlocking slide plate which is slidably arranged on the front panel and cooperates with the locking slide plate, and a micro switch which is arranged on the front panel and cooperates with the interlocking slide plate. When the interlocking slide plate triggers the micro switch, the micro switch is turned on, and the interlocking slide plate blocks the grounding operation hole and the isolation operation hole on the front panel. One end of the interlocking slide plate is provided with a locking hole which cooperates with the locking slide plate. When the circuit breaker main shaft rotates to the closed position, the interlocking plate moves with the circuit breaker main shaft and drives the interlocking shaft to rotate. The interlocking shaft drives the locking slide plate to move through the interlocking piece. One end of the locking slide plate is inserted into the locking hole of the interlocking slide plate, and the locking slide plate and the interlocking slide plate are locked.

[0005] The breaker interlocking assembly has the advantages that the modular structure design is simple, the manual operation and electric operation functions of the electric operating mechanism are locked when the circuit breaker is closed, the interlocking is more reliable, and the safety is higher.

[0006] In particular, two guide bolts are arranged on the front panel corresponding to the locking slide plate, guide holes are arranged on the locking slide plate and matched with the two guide bolts, the two guide bolts are inserted into the guide holes, and the locking slide plate and the two guide bolts are in sliding connection.

[0007] In particular, a locking plate is arranged on the two guide bolts in sliding mode, a tension spring is arranged between the locking plate and the locking slide plate, a positioning bolt matched with the locking plate is arranged on the locking slide plate, one end of the positioning bolt is inserted into the sliding hole of the locking plate, the locking plate moves with the locking slide plate and is inserted into the locking hole of the interlocking slide plate, and the locking plate and the interlocking slide plate are locked.

[0008] In particular, an adjusting plate matched with the circuit breaker main shaft is arranged on the interlocking plate in linkage mode, a waist-shaped adjusting hole is arranged on the adjusting plate, and an adjusting bolt connected with the interlocking plate is arranged in the waist-shaped adjusting hole.

[0009] Particularly, the mechanism frame is provided with a mis-close interlocking assembly matched with the isolation operation shaft, the mis-close interlocking assembly comprises an interlocking rod slidingly arranged on the mechanism frame and used for triggering the tripping of the circuit breaker, a reset spring arranged between the interlocking rod and the mechanism frame, and a mis-close interlocking plate connected to one end of the interlocking rod, the isolation operation shaft is connected with a cam matched with the mis-close interlocking plate, when the isolation operation shaft rotates to the open position, the cam drives the mis-close interlocking plate to move along with the isolation operation shaft, the interlocking rod moves along with the mis-close interlocking plate and limits the circuit breaker in the open position. When the isolation operation shaft rotates to the open position, the isolation operation shaft drives the mis-close interlocking plate to move, the mis-close interlocking plate drives the interlocking rod to move, and the interlocking rod drives the tripping part of the circuit breaker to move, thereby limiting the circuit breaker in the open position and avoiding the mis-close of the circuit breaker. The mis-close interlocking assembly adopts a modular structure design, thereby facilitating the assembly of the mis-close interlocking assembly and the mechanism frame.

[0010] Particularly, the mechanism frame is provided with a mis-close interlocking assembly matched with the isolation operation shaft, the mis-close interlocking assembly comprises an interlocking rod slidingly arranged on the mechanism frame and used for triggering the tripping of the circuit breaker, a reset spring arranged between the interlocking rod and the mechanism frame, and a mis-close interlocking plate connected to one end of the interlocking rod, the isolation operation shaft is connected with a cam matched with the mis-close interlocking plate, when the isolation operation shaft rotates to the open position, the cam drives the mis-close interlocking plate to move along with the isolation operation shaft, the interlocking rod moves along with the mis-close interlocking plate and limits the circuit breaker in the open position. When the isolation operation shaft rotates to the open position, the isolation operation shaft drives the mis-close interlocking plate to move, the mis-close interlocking plate drives the interlocking rod to move, and the interlocking rod drives the tripping part of the circuit breaker to move, thereby limiting the circuit breaker in the open position and avoiding the mis-close of the circuit breaker. The mis-close interlocking assembly adopts a modular structure design, thereby facilitating the assembly of the mis-close interlocking assembly and the mechanism frame. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a perspective view of the electric operating mechanism of the embodiment of the utility model.

[0012] Figure 2 It is an exploded view of the electric operating mechanism of the embodiment of the utility model.

[0013] Figure 3 It is an internal structure view of the electric operating mechanism of the embodiment of the utility model.

[0014] Figure 4 It is a perspective view of the embodiment of the utility model. DETAILED DESCRIPTION

[0015] As Figures 1-4The utility model discloses an electric operating mechanism's circuit breaker interlock assembly, including mechanism frame 10, the interlock shaft 11 of rotation setting on mechanism frame 10, the interlock plate 12 of linkage setting on the one end of interlock shaft 11 and with the linkage cooperation of circuit breaker main shaft, the interlock sheet 13 of linkage setting on the other end of interlock shaft 11, the locking slide plate 14 of sliding setting on the front panel 101 of mechanism frame 10 corresponding interlock sheet 13, set in the reset tension spring 15 between locking slide plate 14 and front panel 101, the interlock slide plate 16 of sliding setting on front panel 101 and with locking slide plate 14 cooperation, the micro -switch 17 of setting on front panel 101 and with interlock slide plate 16 cooperation, interlock slide plate 16 triggers micro -switch 17, and micro -switch 17 is connected, and interlock slide plate 16 is shielded on the grounding operation hole 102, the isolation operation hole 103 of front panel 101, the locking hole 161 of interlock slide plate 16 one end is provided with with locking slide plate 14 cooperation, the circuit breaker main shaft rotates to the closing position, interlock plate 12 with circuit breaker main shaft action and drive interlock shaft 11 rotation, interlock shaft 11 drives locking slide plate 14 action through interlock sheet 13, and locking slide plate 14 one end is inserted in the locking hole 161 of interlock slide plate 16, and realizes the locking of locking slide plate 14 and interlock slide plate 16.

[0016] As Figure 2 , 3As shown in FIGS. 4, the front panel 101 is provided with two guide bolts 18 corresponding to the locking sliding plate 14, the locking sliding plate 14 is provided with two guide holes 141 matched with the two guide bolts 18, and the two guide bolts 18 are inserted into the guide holes 141 to form a sliding connection between the locking sliding plate 14 and the two guide bolts 18. The locking sliding plate is slidably arranged on the guide bolts of the front panel, so that the locking sliding plate can reliably move on the front panel, and the assembly of the locking sliding plate and the front panel is facilitated, and the assembly efficiency is higher. The two guide bolts 18 are slidably provided with a locking plate 19, the locking plate 19 and the locking sliding plate 14 are provided with a tension spring 20, the locking sliding plate 14 is provided with a positioning bolt 21 matched with the locking plate 19, one end of the positioning bolt 21 is inserted into a sliding hole 191 of the locking plate 19, the locking plate 19 moves with the locking sliding plate 14 and is inserted into a locking hole 161 of the interlocking sliding plate 16, and the locking plate 19 and the interlocking sliding plate 16 are locked. The tension spring arranged between the locking plate and the locking sliding plate can prevent the locking plate and the interlocking sliding plate from being stuck, so that the locking plate can reliably drive the locking and interlocking sliding plates to lock, and the interlocking reliability is higher. The interlocking plate 12 is connected with an adjusting plate 22 matched with the main shaft of the circuit breaker, the adjusting plate 22 is provided with a waist-shaped adjusting hole 221, and the adjusting plate 23 connected with the interlocking plate 12 is arranged in the waist-shaped adjusting hole 221. The adjusting plate is arranged on the interlocking plate, and the user can adjust the position of the adjusting plate according to different specifications of the circuit breaker, so that the assembly is more convenient. The mechanism frame 10 is provided with a mis-close interlocking assembly 30 matched with the isolation operation shaft 104, the mis-close interlocking assembly 30 includes an interlocking rod 31 slidably arranged on the mechanism frame 10 and used for triggering the tripping of the circuit breaker, a reset spring 33 arranged between the interlocking rod 31 and the mechanism frame 10, and a mis-close interlocking plate 32 connected with one end of the interlocking rod 31. The isolation operation shaft 104 is connected with a cam 105 matched with the mis-close interlocking plate 32. When the isolation operation shaft 104 rotates to the open position, the cam 105 moves with the isolation operation shaft 104 and drives the mis-close interlocking plate 32 to move, and the interlocking rod 31 moves with the mis-close interlocking plate 32 and limits the circuit breaker at the open position. When the isolation operation shaft rotates to the open position, the isolation operation shaft drives the mis-close interlocking plate to move, the mis-close interlocking plate drives the interlocking rod to move, and the interlocking rod drives the tripping part of the circuit breaker to move, so that the circuit breaker is limited at the open position and the mis-close of the circuit breaker is avoided. The mis-close interlocking assembly adopts a modular structure design, so that the assembly of the mis-close interlocking assembly and the mechanism frame is facilitated, and the assembly is more convenient.The mechanism frame 10 is provided with a support plate 34 corresponding to the interlocking rod 31, the support plate 34 is provided with a sliding guide hole 341, the interlocking rod 31 is inserted into the sliding guide hole 341, and the interlocking rod 31 and the support plate 34 are in sliding connection, and the reset spring 33 is connected between the support plate 34 and the interlocking rod 31. The interlocking rod is slidingly arranged on the support plate of the mechanism frame, so that reliable action of the interlocking rod can be ensured, and assembly of the interlocking rod and the mechanism frame is facilitated, and assembly efficiency is higher.

[0017] The circuit breaker interlocking assembly adopts a modular structure design, and the structure design is simple. When the circuit breaker is closed, the circuit breaker interlocking assembly can lock the manual operation and electric operation functions of the electric operating mechanism, the interlocking is more reliable, and the safety is higher. When the circuit breaker main shaft rotates to the closing position, the circuit breaker main shaft drives the interlocking plate to act, the interlocking plate drives the interlocking shaft to rotate, the interlocking shaft drives the locking slide plate through the interlocking piece, the locking slide plate is inserted into the locking hole of the interlocking slide plate, so that the locking of the locking slide plate and the interlocking slide plate is realized. At this time, the interlocking slide plate blocks the grounding operation hole and the isolation operation hole on the front panel, the electric operating mechanism cannot be manually operated, the manual operation can be locked, and when the circuit breaker main shaft rotates to the closing position, the motor power supply of the electric operation is cut off, and the electric operation function is locked. Therefore, the circuit breaker interlocking assembly of the electric operating mechanism has the advantages of simple structure, stable and reliable performance, reliable interlocking, and convenient assembly.

Claims

1. A circuit breaker interlock assembly for an electrically operated mechanism, characterized by The utility model relates to a circuit breaker interlock mechanism, including mechanism frame, rotation setting interlock shaft on mechanism frame, linkage setting interlock plate on one end of interlock shaft and with circuit breaker main shaft linkage cooperation, linkage setting interlock piece on the other end of interlock shaft, corresponding interlock piece sliding setting locking slide plate on the front panel of mechanism frame, setting reset tension spring between locking slide plate and front panel, sliding setting interlock slide plate on the front panel and with locking slide plate cooperation, setting microswitch on the front panel and with interlock slide plate cooperation, when interlock slide plate triggers microswitch, microswitch is connected, and interlock slide plate covers ground operation hole, isolation operation hole on the front panel, one end of interlock slide plate is provided with locking hole and with locking slide plate cooperation, when circuit breaker main shaft rotates to closing position, interlock plate drives interlock shaft rotation along with circuit breaker main shaft action and drives locking slide plate action, and interlock piece drives locking slide plate action through interlock piece, and one end of locking slide plate is inserted in locking hole of interlock slide plate, and locking slide plate and interlock slide plate are locked.

2. The power-operated mechanism interlock assembly of claim 1, wherein: Two guide bolts are arranged on the front panel corresponding to the locking slide plate, and guide holes are arranged on the locking slide plate corresponding to the two guide bolts, the two guide bolts are inserted into the guide holes, and the locking slide plate and the two guide bolts are in sliding connection.

3. The power-operated mechanism interlock assembly of claim 2, wherein: A locking plate is arranged on the two guide bolts, a tension spring is arranged between the locking plate and the locking slide plate, a positioning bolt is arranged on the locking slide plate corresponding to the locking plate, one end of the positioning bolt is inserted into the sliding hole of the locking plate, the locking plate is inserted into the locking hole of the interlock slide plate along with the locking slide plate, and the locking plate and the interlock slide plate are locked.

4. The power-operated mechanism interlock assembly of claim 1 or 2, wherein: An adjusting plate is arranged on the interlock plate corresponding to the circuit breaker main shaft, a waist-shaped adjusting hole is arranged on the adjusting plate, and an adjusting bolt connected with the interlock plate is arranged in the waist-shaped adjusting hole.

5. The power-operated mechanism interlock assembly of claim 1 or 2, wherein: An error closing interlock assembly is arranged on the mechanism frame corresponding to the isolation operation shaft, the error closing interlock assembly comprises an interlock rod slidingly arranged on the mechanism frame and used for triggering the circuit breaker to trip, a reset spring arranged between the interlock rod and the mechanism frame, and an error closing interlock plate arranged on one end of the interlock rod, a cam corresponding to the error closing interlock plate is arranged on the isolation operation shaft, when the isolation operation shaft rotates to the open position, the cam drives the error closing interlock plate to act along with the isolation operation shaft, and the interlock rod is limited at the open position of the circuit breaker along with the error closing interlock plate.

6. The power-operated mechanism interlock assembly of claim 5, wherein: A supporting plate is arranged on the mechanism frame corresponding to the interlock rod, a sliding guide hole is arranged on the supporting plate, the interlock rod is inserted into the sliding guide hole, and the interlock rod and the supporting plate are in sliding connection, and the reset spring is connected between the supporting plate and the interlock rod.

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