CN116825558B - Interlocking device for high-voltage switch equipment mechanism - Google Patents
Interlocking device for high-voltage switch equipment mechanism Download PDFInfo
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- CN116825558B CN116825558B CN202311100638.8A CN202311100638A CN116825558B CN 116825558 B CN116825558 B CN 116825558B CN 202311100638 A CN202311100638 A CN 202311100638A CN 116825558 B CN116825558 B CN 116825558B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 115
- 238000012423 maintenance Methods 0.000 claims abstract description 22
- 230000009471 action Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 description 12
- 238000009434 installation Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/24—Shutters or guards
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
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Abstract
The application relates to the technical field of high-voltage switch equipment, and provides an interlocking device of a high-voltage switch equipment mechanism, which comprises a cabinet door placing mechanism, a pushing and holding mechanism, a linkage mechanism and a rocker arm driving mechanism; the cabinet door placing mechanism comprises a mounting seat and a swing rod piece, one end of the swing rod piece is hinged to the mounting seat, the swing rod piece is provided with a hooking piece for fixing a cable chamber door, and the cable chamber door is provided with a hanging plate in hooking fit with the hooking piece; the rocker arm driving mechanism is used for being connected with a main shaft of the grounding switch, the linkage mechanism is connected with the rocker arm driving mechanism, and the pushing and holding mechanism is connected between the linkage mechanism and the swing rod piece; when the grounding switch is in a switching-off state, the swing rod piece is positioned at a safety position, and the cable chamber door can completely seal the cable chamber; when the grounding switch is switched to a closing state, the swing rod piece rotates to a maintenance position, and the cable chamber door is obliquely exposed out of the cable chamber cabinet body. Based on this, can ensure to install in place when cable room door installs, the normal brake operation of separating of follow-up earthing switch of being convenient for.
Description
Technical Field
The application relates to the technical field of high-voltage switch equipment, in particular to a high-voltage switch equipment mechanism interlocking device.
Background
The high-voltage switch equipment, in particular to a movable high-voltage switch cabinet with the voltage class of 35kV, mainly comprises a control room, a breaker room, a bus room and a cable room, and has the functions of receiving and distributing electric energy as a whole and realizing the functions of controlling, protecting, monitoring and the like on a circuit.
The grounding switch in the high-voltage switch cabinet is arranged in the cable chamber and is a mechanical switch for the circuit grounding part, and the grounding switch is used for replacing a portable ground wire, grounding equipment when high-voltage equipment and lines are overhauled, and protecting personal safety. The interlocking device is arranged between the grounding switch and the cable chamber door and is used for enabling the cable chamber door not to be opened when the grounding switch is in a brake-separating state so as to meet the five-prevention interlocking function.
Specifically, when the electrical components and lines in the cable chamber are overhauled, the grounding switch needs to be controlled to be in a closing state, and then an overhauler can detach the cable chamber door to open the cable chamber. After the maintenance operation is completed, maintenance personnel need install the cable chamber door in the cable chamber again in order to close the cable chamber, just can switch the earthing switch to the brake-separating state.
However, when the cable chamber door is reinstalled by an maintainer, the cable chamber door may not be installed in place, and when the grounding switch is opened by a subsequent maintainer, interference or even blocking may be formed between the interlocking device and the cable chamber door, so that the normal opening of the grounding switch is affected; at this time, an maintainer is required to recheck and adjust the installation position of the cable chamber door, so that the operation is affected and the improvement is required.
Disclosure of Invention
Based on the above, the application provides the interlocking device of the high-voltage switchgear mechanism, which can ensure the installation in place when the cable chamber door is installed, so as to facilitate the normal opening operation of the follow-up grounding switch.
The application provides an interlocking device of a high-voltage switch equipment mechanism, which adopts the following technical scheme:
the interlocking device of the high-voltage switch equipment mechanism comprises a cabinet door placing mechanism, a pushing and holding mechanism, a linkage mechanism and a rocker arm driving mechanism; wherein,
the cabinet door placing mechanism comprises a mounting seat fixed in the cable chamber cabinet body and a swing rod piece with one end hinged to the mounting seat, the swing rod piece is provided with a hook piece for fixing the cable chamber door, and the cable chamber door is provided with a hanging plate in hooking fit with the hook piece;
the rocker arm driving mechanism is used for being connected with a main shaft of the grounding switch, the linkage mechanism is connected with the rocker arm driving mechanism, and the pushing and holding mechanism is connected between the linkage mechanism and the swing rod piece;
the rocker arm driving mechanism is used for forcing the rocker arm to rotate by virtue of the action of the grounding switch, when the grounding switch is in a switching-off state, the rocker arm is positioned at a safety position, and a cable chamber door arranged on the rocker arm can completely seal the cable chamber;
when the grounding switch is switched to a closing state, the swing rod piece rotates to a maintenance position, and the cable chamber door is partially exposed out of the cable chamber cabinet body and is obliquely arranged.
By adopting the technical scheme, the cable chamber door is fixed on the cable chamber cabinet body through the cooperation between the hanging plate and the hanging piece, when the grounding switch is switched to a closing state, the main shaft of the grounding switch drives the rocker arm driving mechanism to act, and the rocker arm can be linked with the pushing and holding mechanism through the structure, so that the rocker arm is finally forced to act, the rocker arm is outwards deflected around the rotating connection part between the bottom end of the rocker arm and the mounting seat, and the cable chamber door is further forced to rotate to be partially exposed in the cable chamber, so that the cable chamber door is convenient to detach and reinstall.
And when the cable chamber door is reinstalled, as long as the hanging plate of the cable chamber door is hung on the hooking piece of the swing rod piece, the cable chamber door can be stably hung on the cable chamber through self gravity, so that the condition that the cable chamber door is not installed in place is greatly reduced, the possibility that an maintainer needs to reinspect and adjust the installation position of the cable chamber door is reduced, and the normal opening operation of a follow-up grounding switch is facilitated. In addition, when the grounding switch is switched to the opening state, the swing rod piece can rotate to a safety position, the cable chamber door can completely seal the cable chamber at the moment, and the disassembly of the cable chamber door is limited through structural linkage between the linkage mechanism and the pushing and holding mechanism, so that the five-prevention requirement of the switch cabinet can be met, and the operation safety is ensured.
Optionally, the rocker arm driving mechanism comprises a driven part rotationally connected with the linkage mechanism, a fixed part fixedly connected with the main shaft and a movable rocker arm arranged between the driven part and the fixed part; the movable rocker arm is rotationally connected with the fixed part, and the rotation axis between the movable rocker arm and the fixed part is arranged in the same direction with the central axis of the main shaft;
the driven part is provided with a first kidney-shaped hole, the movable rocker arm is fixed with a first connecting piece, and the first connecting piece penetrates through the first kidney-shaped hole and is freely movably arranged in the first kidney-shaped hole; the end part of the first connecting piece is connected with a first nut, and the first connecting piece and the first nut jointly clamp and fix the driven part and the movable rocker arm; the axle wire of first connecting piece sets up with the axle wire of main shaft perpendicularly, and the axis of rotation between driven part and the link gear sets up with the axle wire of main shaft perpendicularly.
By adopting the technical scheme, when the grounding switch is switched between the opening state and the closing state, the rotation of the grounding switch main shaft can drive the fixed part connected with the grounding switch main shaft to circumferentially rotate, so that the movable rocker arm is forced to move towards the direction approaching/separating from the cable chamber door; in the moving process of the movable rocker arm, the movable rocker arm and the fixed part can relatively rotate and avoid through the movement of the first connecting piece in the first kidney-shaped hole, and the action of the driven part can drive the linkage mechanism to move in the direction approaching/separating from the cable chamber door because the rotation axis between the driven part and the linkage mechanism is perpendicular to the central axis of the main shaft.
Optionally, the linkage mechanism comprises a guide fixing seat fixed in the cable chamber cabinet body and a linkage rod piece which is arranged on the guide fixing seat in a unidirectional movement way, the driven part is rotationally connected with one end of the linkage rod piece,
the interlocking device also comprises a reversing mechanism for changing the relative rotation direction between the main shaft and the swing rod piece, and the pushing and holding mechanism is connected with the other end of the linkage rod piece through the reversing mechanism;
when the grounding switch is switched on, the driven part drives the linkage rod piece to move unidirectionally along the guide fixing seat, and then the swinging rod piece is forced to rotate to the maintenance position by the pushing and holding mechanism.
Through adopting foretell technical scheme, the linkage member is as the intermediate junction component between earthing switch main shaft and the swinging arms, and fixed and guide through the direction fixing base can be convenient for the unidirectional movement of linkage member, and then make earthing switch's brake breaking, combined floodgate can force the swinging arms to switch smoothly between safe position and maintenance position.
Optionally, the pushing and maintaining mechanism comprises a first plate, a second plate, a first spring, a connecting pin and a second connecting piece, wherein the first plate is connected with the linkage rod piece through a reversing mechanism;
the swinging rod piece is provided with a second waist-shaped hole, and the second connecting piece is connected to the second plate and penetrates through the second waist-shaped hole; the end part of the second connecting piece is connected with a second nut, and the second connecting piece and the second nut clamp and position the second plate and the swinging rod piece together;
the second plate is provided with a jack, and the connecting pin is penetrated through the jack and fixed on the first plate; the end part of the connecting pin is provided with an anti-falling part, and the anti-falling part is positioned on the side surface of the second plate, which is far away from the first plate;
the first spring is sleeved on the connecting pin, is positioned between the first plate and the second plate and is used for forcing the second plate to prop against the anti-falling part.
Through adopting foretell technical scheme, realize being connected between link mechanism and the pendulum rod spare through pushing retaining mechanism for the action of linkage member can force first plate, second plate and connecting pin together outwards remove, and through the slip of second connecting piece in the second kidney-shaped hole, can promote the pendulum rod spare outwards to rotate to being in the maintenance position. In addition, the setting of first spring makes the second plate support in anticreep portion all the time, and when pendulum rod spare was in safe position, cable chamber door was located extreme position, and the maintainer can't outwards pull cable chamber door in order to open the cable chamber any longer, can satisfy five and prevent the requirement, ensures operation safety.
Optionally, the reversing mechanism comprises a reversing fixed seat, a rotating shaft rod, a first arm plate and a second arm plate, wherein the reversing fixed seat is fixed in the cable chamber cabinet body, and the rotating shaft rod is arranged on the reversing fixed seat in a penetrating manner and is in rotating connection with the reversing fixed seat;
the first arm plate and the second arm plate are both fixed on the rotating shaft rod, and the first arm plate and the second arm plate are respectively arranged on two sides of the rotating shaft rod; the first arm plate is movably connected with the linkage rod piece, and the second arm plate is rotatably connected with the first plate.
By adopting the technical scheme, after the grounding switch is arranged on the cable chamber cabinet body, the grounding switch is switched from a closing state to a separating state, and the main shaft is usually forced to rotate upwards along the direction close to the cable chamber door, and at the moment, the linkage rod piece can be forced to move towards the direction far away from the cable chamber door through the rocker arm driving mechanism, so that a reversing mechanism is required to be additionally arranged to force the rocker arm piece to rotate outwards. The first arm plate and the second arm plate are respectively arranged at two sides of the rotating shaft rod by taking the rotating shaft rod as a connecting supporting point, and the linkage rod piece forces the first arm plate to rotate in a direction away from the cable chamber door through movable connection with the first arm plate, so that the second arm plate is driven to rotate in a direction close to the cable chamber door, and further the swing rod piece rotates smoothly, and the cable chamber door is obliquely exposed out of the cable chamber cabinet body.
Optionally, a guide post is arranged at one end of the linkage rod piece far away from the driven part, and the guide post is connected with a third connecting piece;
the first arm plate is provided with a third waist-shaped hole, the third connecting piece penetrates through the third waist-shaped hole, the end part of the third connecting piece is connected with a third nut, and the third connecting piece and the third nut jointly clamp and position the guide column piece and the first arm plate.
Through adopting foretell technical scheme, make third connecting piece and third nut centre gripping location guide post spare and first arm board jointly, the movable connection between linkage member and the first arm board can be realized in the downthehole removal of third waist shape hole for the unidirectional movement of linkage member drives the rotation of second arm board smoothly, forces the pendulum rod spare to rotate to the slope and expose in the cable chamber cabinet body outside.
Optionally, the section shape of the guide post is rectangular, and the guide fixing seat is provided with a first guide hole for the guide post to pass through in a matching way.
Through adopting foretell technical scheme, through the activity of guide post spare in first guiding hole, can restrict its rotation when the linkage member unidirectional movement to weaken the stress size of guide post spare and first arm board hookup location, prolong this interlock's mechanical life.
Optionally, the pushing and maintaining mechanism further comprises a limiting block set arranged in the cable chamber cabinet body, and one end of the linkage rod piece, which is far away from the driven part, is provided with an abutting limiting piece;
the limiting stop group is provided with an unlocking state and a protection state, and when the swing rod piece is in a safe position, the second plate is propped against the limiting stop group and is in the unlocking state, so that the limiting stop group and the propping limiting piece are arranged in a staggered manner along the height direction;
when the swing rod piece is in the maintenance position, the limiting blocking group is positioned at the outer side of the abutting limiting piece far away from the driven part along the sliding direction of the linkage rod piece and is used for limiting the reset of the linkage rod piece; at this time, the limit stop group is in a protection state.
By adopting the technical scheme, the limiting stop group is arranged, and when the swing rod piece is in the maintenance position and the cable chamber door is detached, the limiting stop group can be in a protection state, namely, the limiting stop group is positioned at the outer side of the abutting limiting piece far away from the driven part; when an maintainer operates by mistake and is about to switch the grounding switch from a closing state to a separating brake state, the limiting stop group can be blocked by the abutting limiting piece, the grounding switch cannot be switched to the separating brake state, the incorrect operation of the maintainer is avoided in a mechanical structure mode, and the personal safety of the maintainer is greatly ensured. When the swing rod piece is in a safe position, the second plate can prop against the limit stop group and force the limit stop group to be in an unlocking state, and at the moment, the limit stop group and the propping limit block are staggered in the height direction, so that the one-way movement of the linkage rod piece is not blocked, and the smooth switching of the grounding switch from the opening state to the closing state is facilitated.
Optionally, the limiting blocking group comprises a limiting fixing seat, a limiting blocking piece and a second spring, wherein the limiting fixing seat is fixed in the cable chamber cabinet body, the limiting blocking piece is vertically slidably arranged in the limiting fixing seat, and the second spring is arranged between the limiting blocking piece and the limiting fixing seat; the second spring is used for forcing the limiting stopper to be in a protection state.
Through adopting foretell technical scheme, the setting of spacing fixing base is used for fixed spacing fender piece and second spring, and when the pendulum rod piece was in safe position, the second plate can support in spacing fender piece and make spacing fender piece and support spacing piece dislocation along the direction of height, and the second spring is in the state of inwards contracting this moment, and spacing fender group is in the unblock state. When the swing rod piece is switched to the maintenance position, the abutting limiting piece is located on one side, close to the driven part, of the limiting blocking piece after the swing rod piece moves, at the moment, the second plate leaves the limiting blocking piece, the limiting blocking piece can move upwards to reset under the action of the elastic force of the second spring, and the abutting limiting piece and the limiting blocking piece are matched to be limited, namely, the limiting blocking group is in a protection state.
Optionally, the side that the butt locating part is close to driven part is equipped with first guide surface, and the side that the spacing retaining part kept away from driven part is equipped with the second guide surface that is used for dodging with first guide surface butt.
By adopting the technical scheme, in the process that the unidirectional movement of the linkage rod member forces the first plate and the second plate to move towards the direction close to the cable chamber door, the first plate and the second plate can move upwards for a certain distance, and at the moment, the limiting stop member is reset upwards under the action of the elastic force of the second spring, so that the condition of abutting interference and even blocking between the limiting stop member and the abutting stop member can occur; through the butt cooperation between first guide surface and the second guide surface, can guide when spacing fender piece and butt locating part contact each other and dodge to the butt locating part removes smoothly to the one side that is close to driven part of spacing fender piece.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the swing arm driving mechanism, the linkage mechanism and the pushing and holding mechanism are sequentially arranged, so that the rotation of the main shaft of the grounding switch can smoothly drive the swing rod piece to rotate, and the swing rod piece is switched between a safety position and a maintenance position;
2. the cable chamber door is fixed on the cable chamber cabinet body through the cooperation between the hanging plate and the hooking piece, and when the cable chamber door is installed, the cable chamber door can be stably hung on the cable chamber through self gravity as long as the hanging plate is hung on the hooking piece, so that the possibility that an overhaul worker needs to check and adjust the installation position of the cable chamber door again is reduced;
3. through setting up spacing group that keeps off, pendulum rod spare is in maintenance position, cable chamber door dismantles, and spacing group that keeps off can be in the protection state, and earthing switch can't switch to the brake state this moment, can stop the mistake operation of maintainer with mechanical structure's mode, has greatly guaranteed personnel's personal safety.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is an enlarged view of the portion A of FIG. 1, mainly showing the structure of the mounting base and the hook member;
FIG. 3 is a schematic view of the cable chamber door in this embodiment;
fig. 4 is a schematic structural view of the linkage mechanism, the reversing mechanism and the pushing and holding mechanism in the present embodiment;
fig. 5 is a schematic structural view of the rocker arm driving mechanism in the present embodiment;
FIG. 6 is an exploded view of the linkage rod and driven member of the present embodiment;
FIG. 7 is a schematic view of the structure of the interlocking device in the present embodiment;
fig. 8 is a schematic structural view of the limiting block set in the present embodiment.
Reference numerals illustrate: 1. a cabinet door placing mechanism; 11. a mounting base; 12. a swing member; 121. a second kidney-shaped aperture; 13. a hook hanging piece; 2. a pushing and holding mechanism; 21. a first plate member; 22. a second plate member; 221. an abutting portion; 222. a guide surface; 23. a first spring; 24. a connecting pin; 241. an anti-falling part; 25. a second connector; 26. a limit baffle group; 261. a limit fixing seat; 262. a limit stop; 2621. a force bearing part; 263. a second spring; 264. a second guide surface; 265. dovetail blocks; 266. a dovetail groove;
3. a linkage mechanism; 31. a guide fixing seat; 311. a first guide hole; 312. a second guide hole; 32. a linkage rod piece; 321. a connecting groove; 33. a guide post; 34. a third connecting member; 35. abutting the limiting piece; 351. a first guide surface;
4. a rocker arm driving mechanism; 41. a driven member; 411. a first kidney-shaped aperture; 42. a fixing member; 43. a movable rocker arm; 44. a first connector; 45. a first nut; 5. a reversing mechanism; 51. a reversing fixing seat; 52. a rotating shaft lever; 53. a first arm plate; 531. a third kidney-shaped aperture; 54. a second arm plate; 6. a cable compartment door; 61. a hanging plate; 7. a cable chamber cabinet; 8. a grounding switch; 81. a main shaft.
Detailed Description
The application is described in further detail below with reference to fig. 1-8.
The embodiment of the application discloses a high-voltage switchgear mechanism interlocking device.
Referring to fig. 1, the high-voltage switchgear mechanism interlock device comprises a cabinet door placing mechanism 1, a pushing and holding mechanism 2, a linkage mechanism 3, a rocker arm driving mechanism 4 and a reversing mechanism 5; the cabinet door placing mechanism 1 comprises a mounting seat 11 and a swinging rod piece 12, wherein the mounting seat 11 is fixed on the inner bottom wall of the cable chamber cabinet body 7, one end of the swinging rod piece 12 is hinged to the mounting seat 11, and the other end of the swinging rod piece 12 is freely rotatably arranged.
Referring to fig. 2, the side of the swing link 12 is integrally formed with a plurality of hooking pieces 13 for fixing the cable room door 6, and all the hooking pieces 13 are equidistantly arranged along the extension direction of the swing link 12. Referring to fig. 3, the hanging plates 61 are integrally formed on the inner side surface of the cable chamber door 6, and the number of the hanging plates 61 is equal to the number of the hooking members 13, so that the cable chamber door 6 can be stably mounted on the swing link 12 by correspondingly hooking each hanging plate 61 to each hooking member 13.
Returning to fig. 1, the swing rod member 12 in this embodiment has a safety position and a maintenance position, when the swing rod member 12 is in the safety position, each hook member 13 on the swing rod member 12 is vertically disposed, and the cable chamber door 6 can completely block the cable chamber at this time, so as to meet the five-protection requirement of the high-voltage switch cabinet. When the swinging rod piece 12 is in the maintenance position, the swinging rod piece 12 rotates to the outside of the cable chamber, and finally each hook piece 13 can be in an outwards inclined state, and the cable chamber door 6 can be exposed to the cable chamber and arranged in an inclined manner, so that maintenance personnel can conveniently detach and reinstall the cable chamber door.
Referring to fig. 4, the rocker arm driving mechanism 4 is connected to the main shaft 81 of the ground switch 8, and the link mechanism 3 is connected to the rocker arm driving mechanism 4; the pushing and holding mechanism 2 is connected with the swing rod piece 12, and the reversing mechanism 5 is arranged between the linkage mechanism 3 and the pushing and holding mechanism 2; the arrangement of the mechanisms enables the rotation of the main shaft 81 of the grounding switch 8 to drive the swinging rod piece 12 to rotate, so that the swinging rod piece 12 is switched between a safety position and a maintenance position.
Specifically, referring to fig. 5, the rocker arm driving mechanism 4 includes a driven member 41, a fixed member 42, and a movable rocker arm 43; the fixing part 42 is sleeved on the main shaft 81 and is locked and fixed with the main shaft 81 through a locking bolt so as to realize the fixed connection between the fixing part 42 and the main shaft 81; the movable rocker 43 is rotatably connected to the fixed member 42, and the rotation axis between the movable rocker 43 and the fixed member 42 is disposed in the same direction as the central axis of the main shaft 81.
Returning to fig. 4, the linkage mechanism 3 includes a guiding fixing seat 31 and a linkage rod member 32, the guiding fixing seat 31 is fixed on the inner side wall of the cable chamber cabinet 7, the guiding fixing seat 31 is provided with a second guiding hole 312, the outer diameter of the linkage rod member 32 is equal to the inner diameter of the second guiding hole 312, and the linkage rod member 32 can be arranged on the guiding fixing seat 31 in a unidirectional movement manner by penetrating the linkage rod member 32 into the second guiding hole 312.
Referring to fig. 6, the outer peripheral surface of the link lever 32 is concavely provided with a connection groove 321, and the connection groove 321 is located at one end of the link lever 32 close to the ground switch 8; the driven part 41 is rotationally sleeved on the connecting groove 321, and two side surfaces of the driven part 41 respectively prop against two opposite inner side walls of the connecting groove 321, so that the driven part 41 can rotate around the central axis of the linkage rod piece 32, and the driven part 41 can drive the linkage rod piece 32 to move along the axial direction of the linkage rod piece 32; in this embodiment, the central axis of the linkage rod 32 is perpendicular to the central axis of the main shaft 81, and the rotation axis between the corresponding driven member 41 and the linkage mechanism 3 is also perpendicular to the central axis of the main shaft 81.
In addition, the driven part 41 is provided with a first kidney-shaped hole 411, the movable rocker arm 43 is fixed with a first connecting piece 44, and the first connecting piece 44 is arranged in the first kidney-shaped hole 411 in a penetrating way and can freely move in the first kidney-shaped hole 411; the end part of the first connecting piece 44 is connected with a first nut 45, and the first nut 45 is propped against the side surface of the driven part 41, which is close to the movable rocker arm 43, so that the first nut 45 and the first connecting piece 44 can jointly clamp and fix the driven part 41 and the movable rocker arm 43, and the movable connection between the movable rocker arm 43 and the driven part 41 is realized; the central axis of the first connector 44 is perpendicular to the central axis of the main shaft 81.
Returning to fig. 4, in the specific installation scenario of the grounding switch 8, the grounding switch 8 is switched from the opening state to the closing state, and the main shaft 81 is often controlled to rotate upwards in the direction approaching the cable chamber door 6; when the main shaft 81 rotates, the fixed part 42 is driven to rotate upwards, so that the movable rocker 43 is forced to move upwards and away from the cable chamber door 6, and the linkage rod 32 is driven to move away from the cable chamber door 6. At this time, the first connecting piece 44 can freely move in the first kidney-shaped hole 411, so that the driven part 41 and the movable rocker 43 can rotate to avoid, and the smooth movement of the linkage rod 32 is facilitated.
The end of the linkage rod piece 32 far away from the driven part 41 is provided with an integrally formed guide post 33, and the section shape of the guide post 33 is rectangular; the guide fixing seat 31 is provided with a first guide hole 311, the shape of the first guide hole 311 is the same as the section shape of the guide column member 33, and the guide column member 33 can be limited to rotate when movably penetrating through the first guide hole 311.
Referring to fig. 7, the reversing mechanism 5 includes a reversing fixed seat 51, a rotating shaft rod 52, a first arm plate 53 and a second arm plate 54, the reversing fixed seat 51 is fixed inside the cable chamber cabinet 7, and the reversing fixed seat 51 is located below the guiding fixed seat 31; the rotating shaft lever 52 is inserted into the reversing fixed seat 51 and is rotatably connected with the reversing fixed seat 51. The first arm plate 53 and the second arm plate 54 are fixed to the rotating shaft 52, and the first arm plate 53 and the second arm plate 54 are disposed on two sides of the rotating shaft 52, that is, the direction of the end of the first arm plate 53 away from the rotating shaft 52 is opposite to the direction of the end of the second arm plate 54 away from the rotating shaft 52.
The first arm plate 53 is movably connected with the linkage rod piece 32; specifically, the first arm plate 53 is provided with a third kidney-shaped hole 531, the guide column member 33 is connected with a third connecting member 34, and the third connecting member 34 is arranged in the third kidney-shaped hole 531 in a penetrating manner and can freely move in the third kidney-shaped hole 531; the end of the third connecting piece 34 is connected with a third nut, and the third nut abuts against the side surface of the guide post 33, which is far away from the first arm plate 53, so that the third connecting piece 34 and the third nut can jointly clamp the guide post 33 and the first arm plate 53.
The pushing and holding mechanism 2 comprises a first plate 21, a second plate 22, a first spring 23, a connecting pin 24 and a second connecting piece 25; the first plate 21 and the second plate 22 are both L-shaped plates, wherein the first plate 21 is rotatably connected to the second arm plate 54. The swing rod piece 12 is provided with a second waist-shaped hole 121, and the second connecting piece 25 is connected to the second plate 22 and penetrates through the second waist-shaped hole 121; the end wall of the second connecting piece 25 is connected with a second nut, and the second nut abuts against the side surface of the second plate 22 away from the swinging rod piece 12, so that the second connecting piece 25 and the second nut jointly clamp and position the second plate 22 and the swinging rod piece 12.
The second plate 22 is provided with a jack, and the connecting pin 24 penetrates through the jack and is fixedly connected with the first plate 21; the end of the connecting pin 24 is provided with an anti-falling portion 241, the anti-falling portion 241 is located on the side surface of the second plate 22 away from the first plate 21, and the outer diameter of the anti-falling portion 241 is larger than the inner diameter of the insertion hole. The first spring 23 is sleeved on the connecting pin 24, and the first spring 23 is positioned between the first plate 21 and the second plate 22; the first spring 23 can always generate an elastic force acting on the second plate 22, so as to force the second plate 22 to normally abut against the anti-falling portion 241.
Referring to fig. 4, when the grounding switch 8 is switched from the opening state to the closing state, the main shaft 81 forces the linkage rod member 32 to move away from the cable chamber door 6 through the rocker arm driving mechanism 4, and the direction of the linkage rod member 32 is changed through the reversing mechanism 5, so that the first plate 21 can move towards the direction close to the cable chamber door 6, and further, the connecting pin 24 and the second plate 22 can move towards the direction close to the cable chamber door 6, and the swinging rod member 12 is pushed to rotate to be partially exposed in the cable chamber by utilizing the movement of the second connecting piece 25 in the second kidney-shaped hole 121, so that the swinging rod member 12 can be in the maintenance position, and a maintenance personnel can conveniently take out the cable chamber door 6. In addition, after the grounding switch 8 returns to the opening state, the swing rod member 12 returns to the safety position, at this time, the first spring 23 forces the second plate 22 to abut against the anti-falling portion 241, so that the maintainer cannot continuously force the cable chamber door 6 to move outwards, and further the disassembly of the cable chamber door 6 is limited, the five-prevention requirement of the switch cabinet can be met, and the operation safety is ensured.
Returning to fig. 7, the pushing and holding mechanism 2 further includes a limit stop group 26 disposed inside the cable chamber cabinet 7, and the limit stop group 26 in this embodiment has an unlocked state and a protected state. The limiting stop group 26 comprises a limiting fixing seat 261, a limiting stop piece 262 and a second spring 263, wherein the limiting fixing seat 261 is fixed inside the cable chamber cabinet 7, and the limiting stop piece 262 is located above the limiting fixing seat 261 and vertically connected with the limiting fixing seat 261 in a sliding mode.
Referring specifically to fig. 8, the side of the limiting stopper 262 is provided with an integrally formed dovetail block 265, the side of the limiting fixing seat 261 is provided with a dovetail groove 266 adapted to the dovetail block 265, and the limiting stopper 262 can vertically slide relative to the limiting fixing seat 261 by moving the dovetail block 265 in the dovetail groove 266. The second spring 263 is disposed between the limiting stopper 262 and the limiting fixing seat 261, and can always generate an elastic force acting on the limiting stopper 262, so that the limiting stopper 262 moves in a direction away from the limiting fixing seat 261.
Returning to fig. 7, an end of the linkage rod 32 away from the driven member 41 is provided with an abutment limiter 35, and the abutment limiter 35 in this embodiment is fixed to an end of the guide post 33 away from the linkage rod 32, and is used for cooperating with the limiter 262 to perform abutment limiting.
The bottom of the second plate 22 is provided with an integrally formed abutting part 221, the side surface of the limiting stopper 262 is provided with an integrally formed bearing part 2621, and when the swing rod piece 12 is in the safety position, the abutting part 221 can abut against the bearing part 2621, so that the second plate 22 abuts against the limiting stopper 262; at this time, the second spring 263 is in an inward contracted state, and the limiting stopper 262 and the abutting limiting member 35 are arranged in a staggered manner along the height direction, so that the movement of the linkage rod 32 is not affected; the limit stop group 26 is in the unlocked state.
When the swing rod 12 is in the maintenance position, the abutting part 221 is separated from the bearing part 2621, and the limiting stopper 262 is reset upwards under the elastic force of the second spring 263, so that the limiting stopper 262 is positioned at the outer side of the abutting limiting member 35 away from the driven part 41 along the sliding direction of the linkage rod 32; the limiting stop group 26 is in a protection state at this time, and is used for preventing an maintainer from misoperation of the grounding switch 8 when the cable chamber door 6 is opened, so that personal safety of the maintainer is ensured.
The guide surface 222 is provided on the outer side of the abutting portion 221, and when the stopper group 26 is in the protection state, the guide surface 222 of the abutting portion 221 is still opposite to the bearing portion 2261. When the cable chamber door 6 is hung on the swing rod 12, the cable chamber door 6 is only manually pressed to completely enter the cable chamber, the abutting portion 221 can be abutted against the top of the bearing portion 2621 again through the guiding of the guiding surface 222, and then the limiting stopper 262 is moved to the position below the abutting stopper 35 again, and at the moment, the limiting stopper group 26 returns to the unlocking state again, so that the maintainer can operate the grounding switch 8 normally.
In addition, a first guide surface 351 is provided on a side surface of the abutment stopper 35 close to the driven member 41, and a second guide surface 264 for abutting and avoiding the first guide surface 351 is provided on a side surface of the stopper 262 away from the driven member 41.
In the process that the first plate 21 and the second plate 22 move towards the direction approaching to the cable chamber door 6, the first plate 21 and the second plate 22 are driven by the second arm plate 54 in the reversing mechanism 5 to move upwards for a certain distance, at this time, the limiting stopper 262 is reset upwards under the action of the elastic force of the second spring 263, and the situation that the limiting stopper 262 is in abutting interference with the abutting stopper 35 or even is blocked may occur; by the abutting engagement between the first guide surface 351 and the second guide surface 264, the stopper 262 and the abutting stopper 35 can be guided to avoid when contacting each other, so that the abutting stopper 35 smoothly moves to a side of the stopper 262 close to the driven member 41.
The implementation principle of the interlocking device of the high-voltage switch equipment mechanism of the embodiment of the application is as follows:
when the grounding switch 8 is switched from a switching-off state to a switching-on state, the main shaft 81 of the grounding switch 8 drives the rocker arm driving mechanism 4 to act, and the action of the linkage rod piece 32, the reversing of the reversing mechanism 5 and the driving of the first plate 21 and the second plate 22 can force the swinging rod to act, so that the swinging rod piece 12 deflects outwards around the rotating connection part between the bottom end of the swinging rod piece and the mounting seat 11, and further the cable chamber door 6 is forced to rotate to be partially exposed in the cable chamber, thereby facilitating the disassembly and reinstallation of the cable chamber door 6.
When the cable chamber door 6 is reinstalled, as long as the hanging plate 61 of the cable chamber door 6 is hung on the hooking piece of the swing rod piece 12, the cable chamber door 6 can be stably hung on the cable chamber through self gravity, so that the condition that the cable chamber door 6 is not installed in place is greatly reduced, the possibility that an maintainer needs to reinspect and adjust the installation position of the cable chamber door 6 is reduced, and the normal opening operation of the follow-up grounding switch 8 is facilitated. In addition, when the grounding switch 8 is switched to the opening state, the swing rod piece 12 can rotate to a safety position, the cable chamber door 6 can completely seal the cable chamber at the moment, and the disassembly of the cable chamber door 6 is limited through structural linkage between the linkage mechanism 3 and the pushing and holding mechanism 2, so that the five-prevention requirement of the switch cabinet can be met, and the operation safety is ensured.
The above is a preferred embodiment of the present application, and is not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (7)
1. A high voltage switchgear mechanism interlock, characterized in that: comprises a cabinet door placing mechanism (1), a pushing and holding mechanism (2), a linkage mechanism (3) and a rocker arm driving mechanism (4); wherein,
the cabinet door placing mechanism (1) comprises a mounting seat (11) fixed in the cable chamber cabinet body (7) and a swing rod piece (12) with one end hinged to the mounting seat (11), the swing rod piece (12) is provided with a hook piece (13) for fixing the cable chamber door (6), and the cable chamber door (6) is provided with a hanging plate (61) in hooking fit with the hook piece (13);
the rocker arm driving mechanism (4) is used for being connected with a main shaft (81) of the grounding switch (8), the linkage mechanism (3) is connected with the rocker arm driving mechanism (4), and the pushing and holding mechanism (2) is connected between the linkage mechanism (3) and the rocker member (12);
the rocker arm driving mechanism (4) is used for forcing the rocker arm (12) to rotate by means of the action of the grounding switch (8), when the grounding switch (8) is in a switching-off state, the rocker arm (12) is located at a safe position, and a cable chamber door (6) arranged on the rocker arm (12) can completely seal a cable chamber;
when the grounding switch (8) is switched to a closing state, the swing rod piece (12) rotates to a maintenance position, and the cable chamber door (6) is partially exposed out of the cable chamber cabinet body (7) and is obliquely arranged;
the rocker arm driving mechanism (4) comprises a driven part (41) rotationally connected with the linkage mechanism (3), a fixed part (42) fixedly connected with the main shaft (81) and a movable rocker arm (43) arranged between the driven part (41) and the fixed part (42); the movable rocker arm (43) is rotatably connected to the fixed part (42), and the rotation axis between the movable rocker arm (43) and the fixed part (42) is arranged in the same direction as the central axis of the main shaft (81);
the driven part (41) is provided with a first kidney-shaped hole (411), the movable rocker arm (43) is fixed with a first connecting piece (44), and the first connecting piece (44) is arranged in the first kidney-shaped hole (411) in a penetrating way and is freely movable in the first kidney-shaped hole (411); the end part of the first connecting piece (44) is connected with a first screw cap (45), and the first connecting piece (44) and the first screw cap (45) jointly clamp the fixed driven part (41) and the movable rocker arm (43); the central axis of the first connecting piece (44) is perpendicular to the central axis of the main shaft (81), and the rotation axis between the driven part (41) and the linkage mechanism (3) is perpendicular to the central axis of the main shaft (81);
the linkage mechanism (3) comprises a guide fixing seat (31) fixed in the cable chamber cabinet body (7) and a linkage rod piece (32) which is arranged on the guide fixing seat (31) in a unidirectional movement way, the driven part (41) is rotationally connected with one end of the linkage rod piece (32),
the interlocking device further comprises a reversing mechanism (5) for changing the relative rotation direction between the main shaft (81) and the swing rod piece (12), and the pushing and holding mechanism (2) is connected to the other end of the linkage rod piece (32) through the reversing mechanism (5);
when the grounding switch (8) is switched on, the driven part (41) drives the linkage rod piece (32) to move unidirectionally along the guide fixing seat (31), and then the swinging rod piece (12) is forced to rotate to a maintenance position through the pushing and holding mechanism (2);
the pushing and holding mechanism (2) comprises a first plate (21), a second plate (22), a first spring (23), a connecting pin (24) and a second connecting piece (25), wherein the first plate (21) is connected with the linkage rod piece (32) through the reversing mechanism (5);
the swing rod piece (12) is provided with a second kidney-shaped hole (121), and the second connecting piece (25) is connected to the second plate (22) and penetrates through the second kidney-shaped hole (121); the end part of the second connecting piece (25) is connected with a second nut, and the second connecting piece (25) and the second nut clamp and position the second plate (22) and the swing rod (12) together;
the second plate (22) is provided with a jack, and the connecting pin (24) is arranged through the jack and fixed on the first plate (21); the end part of the connecting pin (24) is provided with an anti-falling part (241), and the anti-falling part (241) is positioned on the side surface of the second plate (22) far away from the first plate (21);
the first spring (23) is sleeved on the connecting pin (24), and the first spring (23) is located between the first plate (21) and the second plate (22) and used for forcing the second plate (22) to abut against the anti-falling part (241).
2. The high voltage switchgear interlock of claim 1 wherein: the reversing mechanism (5) comprises a reversing fixed seat (51), a rotating shaft rod (52), a first arm plate (53) and a second arm plate (54), wherein the reversing fixed seat (51) is fixed inside the cable chamber cabinet body (7), and the rotating shaft rod (52) penetrates through the reversing fixed seat (51) and is connected with the reversing fixed seat in a rotating mode;
the first arm plate (53) and the second arm plate (54) are both fixed on the rotating shaft rod (52), and the first arm plate (53) and the second arm plate (54) are respectively arranged on two sides of the rotating shaft rod (52); the first arm plate (53) is movably connected with the linkage rod piece (32), and the second arm plate (54) is rotatably connected with the first plate (21).
3. The high voltage switchgear interlock of claim 2 wherein: a guide column (33) is arranged at one end of the linkage rod piece (32) far away from the driven part (41), and the guide column (33) is connected with a third connecting piece (34);
the first arm plate (53) is provided with a third kidney-shaped hole (531), the third connecting piece (34) penetrates through the third kidney-shaped hole (531), a third nut is connected to the end portion of the third connecting piece (34), and the third connecting piece (34) and the third nut jointly clamp the positioning guide column piece (33) and the first arm plate (53).
4. A high voltage switchgear interlock as claimed in claim 3, wherein: the section shape of the guide column (33) is rectangular, and the guide fixing seat (31) is provided with a first guide hole (311) for the guide column (33) to pass through in a matching way.
5. The high voltage switchgear interlock of claim 2 wherein: the pushing and holding mechanism (2) further comprises a limiting stop group (26) arranged in the cable chamber cabinet body (7), and one end, far away from the driven part (41), of the linkage rod piece (32) is provided with an abutting limiting piece (35);
the limiting stop group (26) is in an unlocking state and a protecting state, and when the swing rod piece (12) is in a safety position, the second plate (22) is propped against the limiting stop group (26) and is in the unlocking state, so that the limiting stop group (26) and the propping limiting piece (35) are arranged in a staggered manner along the height direction;
when the swing rod piece (12) is in the maintenance position, the limit stop group (26) is positioned at the outer side of the abutting limit piece (35) away from the driven part (41) along the sliding direction of the linkage rod piece (32) and is used for limiting the reset of the linkage rod piece (32); the limit stop group (26) is in a protection state at the moment.
6. The high voltage switchgear interlock of claim 5 wherein: the limiting stop group (26) comprises a limiting fixed seat (261), a limiting stop piece (262) and a second spring (263), the limiting fixed seat (261) is fixed inside the cable chamber cabinet body (7), the limiting stop piece (262) is vertically slidably arranged on the limiting fixed seat (261), and the second spring (263) is arranged between the limiting stop piece (262) and the limiting fixed seat (261); the second spring (263) is used for forcing the limit stop (262) to be in an unlocking state.
7. The high voltage switchgear interlock of claim 6 wherein: the side surface, close to the driven part (41), of the abutting limiting piece (35) is provided with a first guide surface (351), and the side surface, far away from the driven part (41), of the limiting piece (262) is provided with a second guide surface (264) for abutting and avoiding with the first guide surface (351).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311100638.8A CN116825558B (en) | 2023-08-30 | 2023-08-30 | Interlocking device for high-voltage switch equipment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311100638.8A CN116825558B (en) | 2023-08-30 | 2023-08-30 | Interlocking device for high-voltage switch equipment mechanism |
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| CN116825558A CN116825558A (en) | 2023-09-29 |
| CN116825558B true CN116825558B (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311100638.8A Active CN116825558B (en) | 2023-08-30 | 2023-08-30 | Interlocking device for high-voltage switch equipment mechanism |
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|---|---|
| CN116825558A (en) | 2023-09-29 |
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