CN108346532B - Flexible interlocking system of switch cabinet - Google Patents
Flexible interlocking system of switch cabinet Download PDFInfo
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- CN108346532B CN108346532B CN201810403574.1A CN201810403574A CN108346532B CN 108346532 B CN108346532 B CN 108346532B CN 201810403574 A CN201810403574 A CN 201810403574A CN 108346532 B CN108346532 B CN 108346532B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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Abstract
The invention relates to a switch cabinet interlocking system, in particular to a flexible interlocking system of a switch cabinet, and belongs to the technical field of switch cabinet structures. The automatic lifting device comprises a first pull rope, a second pull rope, a third pull rope, a fourth pull rope, a fifth pull rope, a breaker interlocking mechanism, a lifting mechanism, a cabinet door interlocking mechanism, a grounding switch opening and closing interlocking mechanism, a collision block mechanism and a grounding switch operating mechanism, wherein a pull rope sleeve of the driven ends of the first pull rope, the second pull rope, the third pull rope and the fourth pull rope is fixed at the upper end of a fixed support, and the driven ends of the first pull rope, the second pull rope, the third pull rope and the fourth pull rope are connected to the upper end of a lifting plate together. The invention utilizes the flexible inhaul cable to connect the breaker interlocking mechanism, the lifting mechanism, the cabinet door interlocking mechanism, the grounding switch opening and closing mechanism, the collision block mechanism and the grounding switch operating mechanism which are distributed in the switch cabinet, so as to realize the misoperation prevention function of the switch cabinet.
Description
Technical Field
The invention relates to a switch cabinet interlocking system, in particular to a flexible interlocking system of a switch cabinet, and belongs to the technical field of switch cabinet structures.
Background
The interlocking system of the traditional switch cabinet mostly adopts rigid parts, and the interlocking system of the switch cabinet taking the rigid parts as the basis has the advantages of complex structure, high failure rate and even influence on electric field distribution and safety distance. Based on the reason, the invention provides the flexible interlocking system which overcomes the defects of the prior art and realizes the multi-point control in the three-dimensional space of the switch cabinet by utilizing the characteristics of small volume, convenient bending and turning, easy direction change and the like of the flexible inhaul cable.
Disclosure of Invention
The invention aims to overcome the defects, and provides a flexible interlocking system for a switch cabinet, which utilizes a flexible inhaul cable to connect a breaker interlocking mechanism, a lifting mechanism, a cabinet door interlocking mechanism, a grounding switch opening and closing switch, a collision block and a grounding switch which are distributed in the switch cabinet for operation, so as to realize the misoperation prevention function of the switch cabinet.
According to the technical scheme provided by the invention, the flexible interlocking system of the switch cabinet comprises a first inhaul cable, a second inhaul cable, a third inhaul cable, a fourth inhaul cable, a fifth inhaul cable, a circuit breaker interlocking mechanism, a lifting mechanism, a cabinet door interlocking mechanism, a grounding switch opening and closing interlocking mechanism, a collision block mechanism and a grounding switch operating mechanism, and is characterized in that: the lifting mechanism comprises a lifting plate, a fixed bracket, a partition plate, a worm shaft and a limit screw, wherein the fixed bracket is connected with the lifting plate through a plurality of limit screws, a strip-shaped lifting hole is formed in the position, connected with the limit screw, of the lifting plate, and the lifting plate moves up and down relative to the fixed bracket through the lifting hole; the lifting plate is provided with a lifting operation hole, one side of the lifting operation hole is provided with a worm shaft, and the worm shaft is exposed by the lifting operation hole under the condition that the first inhaul cable, the second inhaul cable, the third inhaul cable and the fourth inhaul cable are not pulled; when any one of the first inhaul cable, the second inhaul cable, the third inhaul cable and the fourth inhaul cable is pulled, the lifting operation hole moves upwards, and the lifting plate shields the worm shaft; the upper end of the fixed bracket is fixed with a cable sleeve at the driven ends of the first cable, the second cable, the third cable and the fourth cable, and the driven ends of the first cable, the second cable, the third cable and the fourth cable are connected with the upper end of the lifting plate together;
the driving end of the first inhaul cable is connected with the circuit breaker interlocking mechanism, and when the circuit breaker is changed from a breaking state to a closing state, the first inhaul cable is pulled by the circuit breaker interlocking mechanism to send out a mechanical command signal; the driving end of the second inhaul cable is connected with the ground switch opening and closing interlocking mechanism, and when the ground switch is changed from an opening state to a closing state, the ground switch opening and closing interlocking mechanism pulls the second inhaul cable to send a mechanical command signal; the driving end of the third inhaul cable is connected with the front door of the breaker chamber of the cabinet door interlocking mechanism, the driving end of the fourth inhaul cable is connected with the front door of the cable chamber of the cabinet door interlocking mechanism, and when the front door of the breaker chamber and the front door of the cable chamber are opened, the third inhaul cable and the fourth inhaul cable are pulled by the cabinet door interlocking mechanism to send out mechanical command signals; the worm shaft of the lifting mechanism is connected with the bump mechanism through the turbine worm mechanism, the worm shaft rotates to realize the conversion of the test position and the working position of the circuit breaker, and the bump mechanism provides a position signal for the circuit breaker; the fifth inhaul cable driving end is connected with the collision block mechanism, the driven end of the fifth inhaul cable is connected with the grounding switch operating mechanism, and the collision block mechanism controls the opening and closing of a grounding operation hole of the grounding switch operating mechanism through the fifth inhaul cable, so that the opening and closing operation of the grounding switch is carried out.
Further, circuit breaker interlocking device includes circuit breaker slide, circuit breaker fixed plate, circuit breaker linkage board, first cable fastening component, circuit breaker limit bolt, the circuit breaker main shaft, circuit breaker turning arm and turning arm round pin axle, connect circuit breaker slide through circuit breaker limit bolt on the circuit breaker fixed plate, circuit breaker slide is last to connect the spacing spiral shell department of circuit breaker and be equipped with rectangular sliding hole, circuit breaker slide can slide from top to bottom relative circuit breaker fixed plate, the cable cover that draws of fixed first cable drive end on the circuit breaker fixed plate, the cable line of first cable drive end is fixed on the circuit breaker slide through first cable fastening component, joint circuit breaker turning arm on the circuit breaker main shaft, the turning arm round pin axle is connected in the rotation of circuit breaker turning arm front end, fixed circuit breaker linkage board on the circuit breaker slide, the circuit breaker linkage board is located the rotation route of turning arm round pin axle.
Further, the ground switch opening and closing interlocking mechanism comprises a ground switch operation shaft, an operation shaft crank arm, an impact bolt, a swing arm, a second inhaul cable fastening assembly, a limit screw and a support frame, wherein the ground switch operation shaft is connected with the impact bolt through the operation shaft crank arm, the support frame is rotationally connected with the swing arm through a pin shaft, the inhaul cable sleeve at the driving end of the second inhaul cable is fixed on the support frame, and the inhaul cable line at the driving end of the second inhaul cable is fixed on the swing arm through the second inhaul cable fastening assembly, and the swing arm is positioned on the rotation path of the impact bolt.
Further, the bump block mechanism comprises a bump block fixing frame, a bump block sliding plate, a bump block, an auxiliary switch and a fifth cable fastening assembly, the bump block sliding plate is connected to the bump block fixing frame through the fifth cable fastening assembly, the bump block sliding plate is connected with a cable line of a fifth cable driving end through the fifth cable fastening assembly, a cable sleeve of the fifth cable driving end is fixed to the bump block fixing frame, a long-strip-shaped sliding hole is formed in the bump block fixing frame, the bump block sliding plate can slide up and down along the bump block fixing frame due to the arrangement of the sliding hole, the bump block is fixed to the bump block sliding plate, a turbine worm mechanism is arranged above the bump block in a clinging mode, two auxiliary switches are fixed to the bump block fixing frame, and the two auxiliary switches are located at the upper end and the lower end of the bump block respectively.
Further, the earthing switch operating mechanism comprises an operation fixing plate, an operation sliding plate, an operation limiting bolt, an operation spring and an earthing switch shaft operation hole, wherein the operation sliding plate is connected with the operation limiting bolt through the operation limiting bolt, a long-strip-shaped sliding hole is formed in the position, connected with the operation limiting bolt, of the operation sliding plate, the operation sliding plate can slide up and down along the operation fixing plate, the operation spring is arranged between the lower end of the operation sliding plate and the operation fixing plate, the earthing switch shaft operation hole is formed in the operation sliding plate, a cable sleeve of a driven end of a fifth cable is fixed on the fixing plate, and a zipper wire of the driven end of the fifth cable is fixed on the operation sliding plate.
Further, cabinet door interlocking device includes the circuit breaker room qianmen, cable room qianmen, go up the latch hook, go up the rotor plate, go up the gyro wheel, third cable fastening assembly, go up the piston axle, go up the spring, go up the axle sleeve, lower latch hook, lower rotor plate, lower gyro wheel, fourth cable fastening assembly, lower piston axle, lower axle sleeve and cabinet door mount, the cabinet door mount upper and lower end is the pivot connection respectively, go up rotor plate one end and pass through the guy wire of third cable fastening assembly connection third cable drive end, the cable cover of third cable drive end is fixed on the cabinet door mount, go up the rotor plate other end and pass through the pivot rotation and connect the upper gyro wheel, fixed upper axle sleeve on the cabinet door mount, go up the upper and lower end of spring sleeve is gone up to the upper and lower sleeve, go up the upper piston axle of sliding connection, go up the piston axle sleeve and go up the lower extreme and hug closely the upper gyro wheel, lower one end passes through fourth cable fastening assembly and connects the pull-up the line of fourth cable drive end, the cable cover of fourth cable drive end is fixed on the cabinet door mount, lower other end passes through the pivot rotation connection lower gyro wheel, lower axle sleeve is fixed on the mount, lower axle sleeve is fixed on the support, lower axle sleeve is down the pivot connection, lower sleeve is located the latch hook is located down the piston of the upper and lower piston axle sleeve, lower piston is located the upper and lower piston chamber, lower piston is located the front through the upper and lower piston chamber, lower piston is located the lower than the front and is located the front.
Compared with the prior art, the invention has the following advantages:
the invention has simple, compact and reasonable structure, small volume of the flexible inhaul cable, convenient bending and turning, easy direction change and easy arrangement; the flexible inhaul cable is utilized to connect a breaker interlocking mechanism, a lifting mechanism, a cabinet door interlocking mechanism, a grounding switch opening and closing mechanism, a collision block mechanism and a grounding switch operating mechanism which are distributed in the switch cabinet, so that the misoperation preventing function of the switch cabinet is realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic diagram of a circuit breaker interlock mechanism.
Fig. 3 is a schematic view of a lifting mechanism.
Fig. 4 is a schematic diagram of a cabinet door interlocking mechanism.
Fig. 5 is a schematic structural diagram of an opening and closing mechanism of the grounding switch.
Fig. 6 is a schematic view of the structure of the bump mechanism.
Fig. 7 is a schematic structural view of the grounding switch operating mechanism.
Reference numerals illustrate: 1-first cable, 2-second cable, 3-third cable, 4-fourth cable, 5-fifth cable, 6-circuit breaker interlock, 6.1-circuit breaker slide, 6.2-circuit breaker fixed plate, 6.3-circuit breaker interlock plate, 6.4-first cable fastening assembly, 6.5-circuit breaker limit bolt, 6.6-circuit breaker spindle, 6.7-circuit breaker lever, 6.8-lever pin, 7-lift mechanism, 7.1-lift plate, 7.2-fixed bracket, 7.3-spacer, 7.4-worm shaft, 7.5-lift plate spring, 7.6-limit screw, 7.7-lift aperture, 7.8-lift operation aperture, 8-cabinet door interlock, 8.1-circuit breaker chamber front door, 8.2-cable chamber front door, 8.3-upper latch hook, 8.4-upper swivel plate 8.5-upper roller, 8.6-third cable fastening assembly, 8.7-upper piston shaft, 8.8-upper spring, 8.9-upper sleeve, 8.10-lower shackle, 8.11-lower swivel plate, 8.12-lower roller, 8.13-fourth cable fastening assembly, 8.14-lower piston shaft, 8.15-lower sleeve, 8.16-cabinet door mount, 9-earthing switch opening and closing interlock mechanism, 9.1-earthing switch operating shaft, 9.2-operating shaft lever, 9.3-strike bolt, 9.4-swing arm, 9.5-second cable fastening assembly, 9.6-limit screw, 9.7-support frame, 10-strike mechanism, 10.1-strike mount, 10.2-strike slide plate, 10.3-strike, 10.4-auxiliary switch, 10.5-fifth cable fastening assembly, 10.3-strike, 10.5-fifth cable fastening assembly, 11-earthing switch operating mechanism, 11.1-operation fixed plate, 11.2-operation sliding plate, 11.3-operation limit bolt, 11.4-operation spring, 11.5-earthing switch axle operation hole.
Detailed Description
The invention will be further described with reference to examples of embodiments in the accompanying drawings, in which:
as shown in fig. 1 to 7, the invention mainly comprises a first cable 1, a second cable 2, a third cable 3, a fourth cable 4, a fifth cable 5, a circuit breaker interlocking mechanism 6, a lifting mechanism 7, a cabinet door interlocking mechanism 8, a grounding switch opening and closing interlocking mechanism 9, a collision block mechanism 10 and a grounding switch operating mechanism 11.
As shown in fig. 2, the lifting mechanism 7 comprises a lifting plate 7.1, a fixed support 7.2, a partition plate 7.3, a worm shaft 7.4 and a limit screw 7.6, wherein the fixed support 7.2 is connected with the lifting plate 7.1 through a plurality of limit screws 7.6, a strip-shaped lifting hole 7.7 is formed in the position, connected with the limit screw 7.6, of the lifting plate 7.1, and the lifting plate 7.1 moves up and down relative to the fixed support 7.2 through the lifting hole 7.1.
The lifting plate 7.1 is provided with a lifting operation hole 7.8, one side of the lifting operation hole 7.8 is provided with a worm shaft 7.4, and the worm shaft 7.4 is exposed by the lifting operation hole 7.8 under the condition that the first guy cable 1, the second guy cable 2, the third guy cable 3 and the fourth guy cable 4 are not pulled; when any one of the first, second, third, and fourth cables 1, 2, 3, and 4 is pulled, the lift operation hole 7.8 moves upward, and the lift plate 7.1 shields the worm shaft 7.4.
The fixed bolster 7.2 upper end is fixed the cable cover of first cable 1, second cable 2, third cable 3 and fourth cable 4 driven end, and first cable 1, second cable 2, third cable 3 and fourth cable 4's driven end cable line is connected jointly in lift plate 7.1 upper end.
The drive end of the first inhaul cable 1 is connected with the breaker interlocking mechanism 6, and when the breaker changes from a breaking state to a closing state, the first inhaul cable 1 is pulled by the breaker interlocking mechanism 6 to send out a mechanical command signal.
As shown in fig. 2, the circuit breaker interlocking mechanism 6 includes a circuit breaker slide 6.1, a circuit breaker fixing plate 6.2, a circuit breaker linkage plate 6.3, a first cable fastening assembly 6.4, a circuit breaker limit bolt 6.5, a circuit breaker main shaft 6.6, a circuit breaker crank arm 6.7 and a crank arm pin shaft 6.8, the circuit breaker fixing plate 6.2 is connected with the circuit breaker slide 6.1 through the circuit breaker limit bolt 6.5, a strip-shaped sliding hole is arranged at the position of the circuit breaker slide 6.1, which is connected with the circuit breaker limit bolt 6.5, and the circuit breaker slide 6.1 can slide up and down relative to the circuit breaker fixing plate 6.2 through the arrangement of the sliding hole. The pull rope sleeve of the first pull rope 1 driving end is fixed on the circuit breaker fixing plate 6.2, and the pull rope line of the first pull rope 1 driving end is fixed on the circuit breaker slide plate 6.1 through the first pull rope fastening assembly 6.4. The main shaft 6.6 of the breaker is clamped with the crank arm 6.7 of the breaker, and the front end of the crank arm 6.7 of the breaker is rotationally connected with the crank arm pin shaft 6.8. The breaker slide 6.1 is provided with a breaker linkage plate 6.3, and the breaker linkage plate 6.3 is positioned on the rotating path of the crank arm pin shaft 6.8. When the main shaft of the circuit breaker is disconnected, the crank arm of the circuit breaker is driven to rotate to the lower end position, a crank arm shaft pin on the crank arm of the circuit breaker pushes the sliding plate of the circuit breaker to slide downwards, the first inhaul cable is driven to move downwards, and a mechanical instruction signal is sent to the lifting mechanism.
The driving end of the second inhaul cable 2 is connected with a ground switch opening and closing interlocking mechanism 9, and when the ground switch is changed from an opening state to a closing state, the ground switch opening and closing interlocking mechanism 9 pulls the second inhaul cable 2 to send out a mechanical command signal.
As shown in fig. 5, the switch-on/off interlocking mechanism 9 of the grounding switch comprises a grounding switch operating shaft 9.1, an operating shaft crank arm 9.2, an impact bolt 9.3, a swing arm 9.4, a second inhaul cable fastening assembly 9.5, a limit screw 9.6 and a supporting frame 9.7, wherein the grounding switch operating shaft 9.1 is connected with the impact bolt 9.3 through the operating shaft crank arm 9.2. The support frame 9.7 is rotatably connected with the swing arm 9.4 through a pin shaft. The cable sleeve at the driving end of the second cable 2 is fixed on the supporting frame 9.7, the cable wire at the driving end of the second cable 2 is fixed on the swing arm 9.4 through the second cable fastening assembly 9.5, and the swing arm 9.4 is positioned on the rotating path of the impact bolt 9.3. When the grounding switch performs closing movement, the grounding switch operating shaft rotates clockwise, and the crank arm arranged on the grounding switch operating shaft rotates to the impact swing arm together with the impact bolt, so that the grounding switch is closed. Meanwhile, the impact bolt pushes the swing arm to the rear end position, and at the moment, the swing arm pulls the second inhaul cable backwards to send a mechanical instruction signal to the lifting mechanism.
The drive end of the third guy cable 3 is connected with a breaker chamber front door 8.1 of the cabinet door interlocking mechanism 8, the drive end of the fourth guy cable 4 is connected with a cable chamber front door 8.2 of the cabinet door interlocking mechanism 8, and when the breaker chamber front door and the cable chamber front door are opened, the third guy cable 3 and the fourth guy cable 4 are pulled through the cabinet door interlocking mechanism 8 to send mechanical instruction signals.
As shown in fig. 4, the cabinet door interlocking mechanism 8 includes a front door 8.1 of the circuit breaker, a front door 8.2 of the cable chamber, an upper latch hook 8.3, an upper rotating plate 8.4, an upper roller 8.5, a third cable fastening assembly 8.6, an upper piston shaft 8.7, an upper spring 8.8, an upper shaft sleeve 8.9, a lower latch hook 8.10, a lower rotating plate 8.11, a lower roller 8.12, a fourth cable fastening assembly 8.13, a lower piston shaft 8.14, a lower shaft sleeve 8.15, and a cabinet door fixing frame 8.16.
The upper end and the lower end of the cabinet door fixing frame 8.16 are respectively connected with the upper rotating plate 8.4 and the lower rotating plate 8.11 through pin shafts in a rotating mode, one end of the upper rotating plate 8.4 is connected with a pull rope wire of the driving end of the third pull rope 3 through a third pull rope fastening assembly 8.6, a pull rope sleeve of the driving end of the third pull rope 3 is fixed on the cabinet door fixing frame 8.16, and the other end of the upper rotating plate 8.4 is connected with the upper idler wheel 8.5 through pin shafts in a rotating mode. An upper shaft sleeve 8.9 is fixed on the cabinet door fixing frame 8.16, the upper shaft sleeve 8.9 is connected with an upper piston shaft 8.7 in a sliding mode, an upper spring 8.8 is sleeved on the upper piston shaft 8.7, and the upper end and the lower end of the upper spring 8.8 are respectively contacted with the upper piston shaft 8.7 and the upper shaft sleeve 8.9. The upper end surface of the upper piston shaft 8.7 is tightly attached to the upper roller 8.5.
One end of the lower rotating plate 8.11 is connected with a zipper wire at the driving end of the fourth inhaul cable 4 through a fourth inhaul cable fastening assembly 8.13, an inhaul cable sleeve at the driving end of the fourth inhaul cable 4 is fixed on a cabinet door fixing frame 8.16, and the other end of the lower rotating plate 8.11 is rotationally connected with a lower roller 8.12 through a pin shaft. The cabinet door fixing frame 8.16 is provided with a lower shaft sleeve 8.15, the lower shaft sleeve 8.15 is connected with the lower piston shaft 8.14 in a sliding way, and the lower piston shaft 8.14 is sleeved with a lower spring. The lower end surface of the lower piston shaft 8.14 is closely attached to the lower roller 8.12. The front door 8.1 of the breaker chamber is connected with an upper lock hook 8.3 through a bolt, and the upper lock hook 8.3 is positioned on the rotating path of the upper rotating plate 8.4. The cable chamber front door 8.2 is connected with the lower lock hook 8.10 through a bolt, and the lower lock hook 8.10 is positioned on the rotating path of the lower rotating plate 8.11.
When the front door of the breaker chamber is in opening movement, an upper locking hook arranged on the front door pulls an upper rotating plate to rotate clockwise, an upper roller arranged on the upper rotating plate presses an upper piston shaft and compresses an upper spring to move downwards, and after the upper roller presses the upper piston shaft to pass through the lowest point, the upper piston shaft rapidly pushes the upper locking hook on the front door of the breaker chamber to be released under the action of the upper spring, and the front door of the breaker chamber is opened; simultaneously, a third inhaul cable arranged on the upper rotating plate is pulled up, and a mechanical instruction signal is sent to the lifting mechanism. The opening and closing principle of the front door of the cable chamber is the same as that of the front door of the breaker chamber.
The worm shaft 7.4 of the lifting mechanism 7 is connected with the bump mechanism 10 through a turbine worm mechanism, the worm shaft 7.4 rotates to realize the conversion of the test position and the working position of the circuit breaker, and the bump mechanism 10 provides a position signal for the circuit breaker. Meanwhile, when the circuit breaker is in the test position, the fifth inhaul cable is connected with the grounding switch operating mechanism to open the grounding switch operating hole, the grounding switch is allowed to conduct switching-on and switching-off operation, and otherwise, the grounding switch operating hole is closed.
As shown in fig. 6, the bump mechanism 10 includes a bump fixing frame 10.1, a bump sliding plate 10.2, a bump 10.3, an auxiliary switch 10.4 and a fifth cable fastening assembly 10.5, the bump fixing frame 10.1 is connected with the bump sliding plate 10.2 through the fifth cable fastening assembly 10.5, the bump sliding plate 10.2 is simultaneously connected with a cable line at the driving end of the fifth cable 5 through the fifth cable fastening assembly 10.5, and a cable sleeve at the driving end of the fifth cable 5 is fixed on the bump fixing frame 10.1. The bump block fixing frame 10.1 is provided with a strip-shaped sliding hole at the position connected with the fifth inhaul cable fastening assembly 10.5, and the sliding hole is arranged to enable the bump block sliding plate 10.2 to slide up and down along the bump block fixing frame 10.1. The collision block 10.3 is fixed on the collision block sliding plate 10.2, and a turbine worm mechanism is closely arranged right above the collision block 10.3. Two auxiliary switches 10.4 are fixed on the collision block fixing frame 10.1, and the two auxiliary switches 10.4 are respectively positioned at the upper end and the lower end of the collision block 10.3.
The driving end of the fifth inhaul cable 5 is connected with the collision block mechanism 10, the driven end of the fifth inhaul cable 5 is connected with the grounding switch operating mechanism 11, and the collision block mechanism 10 controls the opening and closing of a grounding operation hole of the grounding switch operating mechanism 11 through the fifth inhaul cable 5, so that the opening and closing operation of the grounding switch is carried out.
As shown in fig. 7, the grounding switch operating mechanism 11 includes an operating fixing plate 11.1, an operating sliding plate 11.2, an operating limit bolt 11.3, an operating spring 11.4 and a grounding switch shaft operating hole 11.5, the operating fixing plate 11.1 is connected with the operating sliding plate 11.2 through the operating limit bolt 11.3, a strip-shaped sliding hole is formed in the operating sliding plate 11.2 at the position where the operating limit bolt 11.3 is connected, and the operating sliding plate 11.2 can slide up and down along the operating fixing plate 11.1. An operating spring 11.4 is arranged between the lower end of the operating slide plate 11.2 and the operating fixed plate 11.1. The operation sliding plate 11.2 is provided with a grounding switch shaft operation hole 11.5, one side of the grounding switch shaft operation hole 11.5 is provided with a grounding switch shaft, when the fifth inhaul cable 5 is pulled, the operation sliding plate 11.2 ascends, and the grounding switch shaft is shielded by the operation sliding plate 11.2. The cable sleeve at the driven end of the fifth cable 5 is fixed on the fixed plate 11.1, and the zipper wire at the driven end of the fifth cable 5 is fixed on the operation sliding plate 11.2. When the circuit breaker leaves the test position, the fifth inhaul cable is released, and the spring fixed on the operation sliding plate pulls down the fifth inhaul cable and shields the grounding switch operation hole.
The invention has simple, compact and reasonable structure, small volume of the flexible inhaul cable, convenient bending and turning, easy direction change and easy arrangement; the flexible inhaul cable is utilized to connect a breaker interlocking mechanism, a lifting mechanism, a cabinet door interlocking mechanism, a grounding switch opening and closing mechanism, a collision block mechanism and a grounding switch operating mechanism which are distributed in the switch cabinet, so that the misoperation preventing function of the switch cabinet is realized.
Claims (6)
1. The utility model provides a flexible interlocking system of cubical switchboard, includes first cable (1), second cable (2), third cable (3), fourth cable (4), fifth cable (5), circuit breaker interlocking device (6), hoist mechanism (7), cabinet door interlocking device (8), earthing switch divide-shut brake interlocking device (9), ram mechanism (10) and earthing switch operating device (11), characterized by: the lifting mechanism (7) comprises a lifting plate (7.1), a fixed support (7.2), a partition plate (7.3), a worm shaft (7.4) and first limit screws (7.6), wherein the fixed support (7.2) is connected with the lifting plate (7.1) through the first limit screws (7.6), strip-shaped lifting holes (7.7) are formed in the positions, connected with the first limit screws (7.6), of the lifting plate (7.1), and the lifting plate (7.1) moves up and down relative to the fixed support (7.2) through the lifting holes (7.7); a lifting operation hole (7.8) is formed in the lifting plate (7.1), a worm shaft (7.4) is arranged on one side of the lifting operation hole (7.8), and the worm shaft (7.4) is exposed from the lifting operation hole (7.8) under the condition that the first guy cable (1), the second guy cable (2), the third guy cable (3) and the fourth guy cable (4) are not pulled; when any one of the first inhaul cable (1), the second inhaul cable (2), the third inhaul cable (3) and the fourth inhaul cable (4) is pulled, the lifting operation hole (7.8) moves upwards, and the lifting plate (7.1) shields the worm shaft (7.4); the upper end of the fixed bracket (7.2) is fixed with a first cable (1), a second cable (2), a third cable (3) and a fourth cable (4), and the cable sleeves of the driven ends of the first cable (1), the second cable (2), the third cable (3) and the fourth cable (4) are connected with the upper end of the lifting plate (7.1) together;
the driving end of the first inhaul cable (1) is connected with the breaker interlocking mechanism (6), and when the breaker changes from a breaking state to a closing state, the first inhaul cable (1) is pulled by the breaker interlocking mechanism (6) to send out a mechanical command signal; the driving end of the second inhaul cable (2) is connected with a ground switch opening and closing interlocking mechanism (9), and when the ground switch is changed from an opening state to a closing state, the ground switch opening and closing interlocking mechanism (9) pulls the second inhaul cable (2) to send out a mechanical command signal; the driving end of the third inhaul cable (3) is connected with a front door (8.1) of a breaker chamber of the cabinet door interlocking mechanism (8), the driving end of the fourth inhaul cable (4) is connected with a front door (8.2) of a cable chamber of the cabinet door interlocking mechanism (8), and when the front door (8.1) of the breaker chamber and the front door (8.2) of the cable chamber are opened, the third inhaul cable (3) and the fourth inhaul cable (4) are pulled by the cabinet door interlocking mechanism (8) to send mechanical instruction signals; the worm shaft (7.4) of the lifting mechanism (7) is connected with the bump mechanism (10) through the turbine worm mechanism, the worm shaft (7.4) rotates to realize the conversion of the test position and the working position of the circuit breaker, and the bump mechanism (10) provides a position signal for the circuit breaker; the driving end of the fifth inhaul cable (5) is connected with the collision block mechanism (10), the driven end of the fifth inhaul cable (5) is connected with the grounding switch operating mechanism (11), the collision block mechanism (10) controls the opening and closing of the grounding operation hole of the grounding switch operating mechanism (11) through the fifth inhaul cable (5), and therefore the opening and closing operation of the grounding switch is carried out.
2. The switchgear flexible interlock system according to claim 1 wherein: the circuit breaker interlocking mechanism (6) comprises a circuit breaker slide plate (6.1), a circuit breaker fixing plate (6.2), a circuit breaker linkage plate (6.3), a first guy cable fastening assembly (6.4), a circuit breaker limiting bolt (6.5), a circuit breaker main shaft (6.6), a circuit breaker crank arm (6.7) and a crank arm pin shaft (6.8), the circuit breaker slide plate (6.1) is connected to the circuit breaker fixing plate (6.2) through the circuit breaker limiting bolt (6.5), a strip-shaped sliding hole is formed in the circuit breaker slide plate (6.1) at the position of the circuit breaker limiting bolt (6.5), the circuit breaker slide plate (6.1) can slide up and down relative to the circuit breaker fixing plate (6.2), a guy cable sleeve for fixing a driving end of the circuit breaker fixing plate (6.2), a guy cable for driving end of the first guy cable (1) is fixed on the circuit breaker slide plate (6.1) through the first guy cable fastening assembly (6.4), the circuit breaker main shaft (6.6) is clamped with the crank arm (6.6), and the circuit breaker crank arm (6.6.6) is connected to the circuit breaker pin shaft (6.8), and the circuit breaker crank arm (6.6.6 is connected to the circuit breaker link plate (6.8).
3. The switchgear flexible interlock system according to claim 1 wherein: the ground switch opening and closing interlocking mechanism (9) comprises a ground switch operation shaft (9.1), an operation shaft crank arm (9.2), an impact bolt (9.3), a swing arm (9.4), a second cable fastening assembly (9.5), a second limit screw (9.6) and a support frame (9.7), wherein the ground switch operation shaft (9.1) is connected with the impact bolt (9.3) through the operation shaft crank arm (9.2), the support frame (9.7) is rotationally connected with the swing arm (9.4) through a pin shaft, a cable sleeve at the driving end of the second cable (2) is fixed on the support frame (9.7), a cable wire at the driving end of the second cable (2) is fixed on the swing arm (9.4) through the second cable fastening assembly (9.5), and the swing arm (9.4) is positioned on the rotating path of the impact bolt (9.3).
4. The switchgear flexible interlock system according to claim 1 wherein: the device is characterized in that the bump block mechanism (10) comprises a bump block fixing frame (10.1), a bump block sliding plate (10.2), a bump block (10.3), an auxiliary switch (10.4) and a fifth cable fastening assembly (10.5), the bump block fixing frame (10.1) is connected with the bump block sliding plate (10.2) through the fifth cable fastening assembly (10.5), the bump block sliding plate (10.2) is connected with a cable wire at the driving end of the fifth cable (5) through the fifth cable fastening assembly (10.5), a cable sleeve at the driving end of the fifth cable (5) is fixed on the bump block fixing frame (10.1), a strip-shaped sliding hole is formed in the bump block fixing frame (10.1) and is connected with the fifth cable fastening assembly (10.5), the bump block sliding plate (10.2) can slide up and down along the bump block fixing frame (10.1), the bump block (10.3) is fixed on the bump block sliding plate (10.2), a turbine worm mechanism is arranged right above the bump block sliding plate (10.3), and the two auxiliary switches (10.4) are respectively arranged at the two auxiliary switches (10.4.3).
5. The switchgear flexible interlock system according to claim 1 wherein: the earthing switch operating mechanism (11) comprises an operating fixing plate (11.1), an operating sliding plate (11.2), an operating limiting bolt (11.3), an operating spring (11.4) and an earthing switch shaft operating hole (11.5), wherein the operating fixing plate (11.1) is connected with the operating sliding plate (11.2) through the operating limiting bolt (11.3), a strip-shaped sliding hole is formed in the operating sliding plate (11.2) at the position where the operating limiting bolt (11.3) is connected, the operating sliding plate (11.2) can slide up and down along the operating fixing plate (11.1), the operating spring (11.4) is arranged between the lower end of the operating sliding plate (11.2) and the operating fixing plate (11.1), the earthing switch shaft operating hole (11.5) is formed in the operating sliding plate (11.2), a pull rope sleeve at the driven end of a fifth pull rope (5) is fixed on the operating sliding plate (11.2).
6. The switchgear flexible interlock system according to claim 1 wherein: the cabinet door interlocking mechanism (8) comprises a front door (8.1) of a circuit breaker chamber, a front door (8.2) of a cable chamber, an upper lock hook (8.3), an upper rotating plate (8.4), an upper roller (8.5), a third inhaul cable fastening assembly (8.6), an upper piston shaft (8.7), an upper spring (8.8), an upper shaft sleeve (8.9), a lower lock hook (8.10), a lower rotating plate (8.11), a lower roller (8.12), a fourth inhaul cable fastening assembly (8.13), a lower piston shaft (8.14), a lower shaft sleeve (8.15) and a cabinet door fixing frame (8.16), wherein the upper end and the lower end of the cabinet door fixing frame (8.16) are respectively connected with the upper rotating plate (8.4) and the lower rotating plate (8.11) through pin shafts in a rotating way, one end of the upper rotating plate (8.4) is connected with an inhaul cable line of a driving end of the third inhaul cable fastening assembly (8.6), the inhaul cable driving end of the third inhaul cable (3) is fixed on the cabinet door fixing frame (8.16), the other end of the upper rotating plate (8.4) is connected with the upper roller (8.5) in a rotating way, the upper end of the upper roller (8.7.5) is connected with the upper roller (8.7.7) in a rotating way, the upper end of the upper roller (8.7.9) is connected with the upper roller (8.7), one end of a lower rotary plate (8.11) is connected with a zipper wire at the driving end of a fourth inhaul cable (4) through a fourth inhaul cable fastening assembly (8.13), an inhaul cable sleeve at the driving end of the fourth inhaul cable (4) is fixed on a cabinet door fixing frame (8.16), the other end of the lower rotary plate (8.11) is rotationally connected with a lower roller (8.12) through a pin shaft, a lower shaft sleeve (8.15) is fixedly arranged on the cabinet door fixing frame (8.16), a lower piston shaft (8.14) is in sliding connection with the lower shaft sleeve (8.15), a lower spring is sleeved on the lower piston shaft (8.14), the lower end face of the lower piston shaft (8.14) is tightly attached to the lower roller (8.12), an upper lock hook (8.3) is connected on a front door (8.1) of a breaker chamber through a bolt, the upper lock hook (8.3) is positioned on a rotating path of the upper rotary plate (8.4), a lower lock hook (8.10) is connected on a front door (8.2) of the cable chamber through a bolt, and the lower lock hook (8.10) is positioned on a rotating path of the lower rotary plate (8.11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810403574.1A CN108346532B (en) | 2018-04-28 | 2018-04-28 | Flexible interlocking system of switch cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403574.1A CN108346532B (en) | 2018-04-28 | 2018-04-28 | Flexible interlocking system of switch cabinet |
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| CN108346532B true CN108346532B (en) | 2023-09-19 |
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| CN203013570U (en) * | 2012-12-20 | 2013-06-19 | 无锡市新一代电力电器有限公司 | Electromagnet-based flexible inhaul cable interlocking mechanism |
| CN204991542U (en) * | 2015-08-11 | 2016-01-20 | 浙江时通电气制造有限公司 | Circuit breaker and isolator's flexible interlocking device |
| CN208127065U (en) * | 2018-04-28 | 2018-11-20 | 无锡市新一代电力电器有限公司 | Switchgear flexible interlock system |
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|---|---|---|---|---|
| AU2009295365A1 (en) * | 2008-09-24 | 2010-04-01 | Linak A/S | A motor operator for switchgear for mains power distribution systems |
| CN201877339U (en) * | 2010-12-10 | 2011-06-22 | 福州天一同益电气有限公司 | Operation mechanism with flexible interlocking device |
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2018
- 2018-04-28 CN CN201810403574.1A patent/CN108346532B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200990300Y (en) * | 2006-07-07 | 2007-12-12 | 耐吉科技股份有限公司 | High-voltage switch cubicle mechanical linking flexible driving device |
| CN102403141A (en) * | 2011-11-24 | 2012-04-04 | 山东泰开成套电器有限公司 | Switch cabinet back door and ground switch interlocking mechanism |
| CN203013570U (en) * | 2012-12-20 | 2013-06-19 | 无锡市新一代电力电器有限公司 | Electromagnet-based flexible inhaul cable interlocking mechanism |
| CN204991542U (en) * | 2015-08-11 | 2016-01-20 | 浙江时通电气制造有限公司 | Circuit breaker and isolator's flexible interlocking device |
| CN208127065U (en) * | 2018-04-28 | 2018-11-20 | 无锡市新一代电力电器有限公司 | Switchgear flexible interlock system |
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