CN114629040B - Metal-enclosed switchgear grounding switch locking device and switchgear thereof - Google Patents
Metal-enclosed switchgear grounding switch locking device and switchgear thereof Download PDFInfo
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- CN114629040B CN114629040B CN202210512034.3A CN202210512034A CN114629040B CN 114629040 B CN114629040 B CN 114629040B CN 202210512034 A CN202210512034 A CN 202210512034A CN 114629040 B CN114629040 B CN 114629040B
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- rod
- lifting
- locking
- sliding
- handcart
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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
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
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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
- H01H9/226—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts the casing containing electrical equipment other than and operated by the switch
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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
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
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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
- H02B11/28—Earthing arrangements
Abstract
The invention provides a locking device of a grounding switch of a metal-enclosed switch cabinet and a switch cabinet thereof, which comprises a mounting plate, a grounding switch, a connecting rod, an operating rod, a fixed rotating seat, a telescopic mechanism, a rear cabinet door locking mechanism, a driving mechanism, a sliding mechanism, a lifting mechanism, a handcart limiting plate and a damping mechanism, wherein the locking mechanism is used for locking a rear cabinet door and is connected to the operating rod through the telescopic mechanism, so that the locking mechanism can be stretched along the direction of the operating rod under the action of the telescopic mechanism, the rear end of the locking mechanism can be ensured to be always tightly attached to the rear door, the locking effect of the rear door is ensured, the operating rod drives the driving mechanism to move when rotating, the driving mechanism drives the lifting mechanism to lift through the sliding mechanism so as to drive the lifting mechanism to lift the handcart limiting plate, and when the operating rod drives the grounding switch to be switched on, the handcart limiting plate is lifted, the hand-operated switch is blocked in front of the handcart, and the handcart can be effectively prevented from moving forward to be switched on.
Description
Technical Field
The invention relates to the technical field of electrical switch cabinets, in particular to a metal-enclosed switch cabinet grounding switch locking device and a switch cabinet thereof.
Background
The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system. When the switch cabinet is maintained, in order to ensure safety, a high-voltage bus in the cabinet is generally grounded after power is cut off, the traditional grounding mode is that grounding is carried out through a grounding wire, along with the continuous development of the switch cabinet technology, the existing metal closed switch cabinet is internally and integrally provided with a grounding switch, when the high-voltage bus is required to be grounded, only the grounding switch needs to be switched on, meanwhile, in order to ensure safety, an important misoperation structure, namely five-prevention for short, is also arranged in the switch cabinet, wherein when the grounding switch in the high-voltage switch cabinet is in a closed position, a trolley circuit breaker cannot enter a working position to be switched on, when the grounding switch in the high-voltage switch cabinet is in a separated position, a rear cabinet door cannot be opened, the situation that the trolley circuit breaker cannot enter a live interval by mistake is an important content in the five-prevention technology, this requires that the ground switch be equipped with a latching mechanism to achieve the technical effects described above.
The utility model provides a ground switch blocking device for high tension switchgear that publication number is CN203607277U, its blocking structure with the back door is at back door fixed mounting jam plate, let the back door block under the circumstances that ground switch opened through chain connecting lever, but this structure is higher to the requirement laminating degree of back door and cabinet body, if the laminating degree of the back door of the cabinet body and the cabinet body is not enough, can cause unable shutting, and when ground switch closes, usually set up a dog at the side among the prior art, the dog stretches out when ground switch closes, let inside handcart unable motion, but the easy condition that the handcart distance can't carry out the shutting when the lateral wall is far away appears, consequently, the effect of shutting from the side is relatively poor.
Disclosure of Invention
The invention aims to provide a metal-enclosed switchgear grounding switch locking device and a switchgear thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a metal enclosed switchgear earthing switch blocking device, includes mounting panel, earthing switch, connecting rod, control rod, fixed rotation seat, telescopic machanism, back cabinet door locking mechanism, actuating mechanism, slide mechanism, elevating system, handcart limiting plate and damper, wherein:
the installation plate is fixed in the switch cabinet, the grounding switch is installed on the installation plate, a connecting rod is connected to a rotating shaft of the grounding switch, the other end of the connecting rod is fixed on an operating rod, the fixed rotating seat is fixed on the inner side wall of the switch cabinet, the operating rod is rotatably installed on the fixed rotating seat, a telescopic mechanism is installed at the rear end of the operating rod and used for stretching along the direction of the operating rod, and a rear cabinet door locking mechanism is fixed at the rear end of the telescopic mechanism and used for fixedly locking a rear cabinet door when the grounding switch is opened;
the rear cabinet door locking mechanism comprises a connecting rod, a guide rod, a locking rod, a guide rail and a locking block, wherein the front end of the connecting rod is fixed on the telescopic mechanism, the guide rod and the locking rod are fixed on the side surface of the rear end of the connecting rod, the guide rail and the locking block are fixed on the inner side wall of the rear cabinet door, a guide groove for guiding the guide rod to rotate is arranged on the front end surface of the guide rail, a locking groove is arranged on the upper surface of the locking block, the positions of the guide groove and the locking groove respectively correspond to the positions of the guide rod and the locking rod, the rear end part of the guide rod is inserted into the guide groove when the rear cabinet door is closed, and the locking rod is clamped in the locking groove when the grounding switch is opened;
the handcart limiting plate lifting device is characterized in that two sets of sliding mechanisms and two sets of lifting mechanisms are symmetrically and relatively arranged, driving mechanisms are installed on operating rods at the front ends of the grounding switches, one of the sliding mechanisms is arranged above the driving mechanisms, the driving mechanisms and the sliding mechanisms are in contact connection, the driving mechanisms are used for driving the sliding mechanisms to slide when the operating rods rotate, the lifting mechanisms are installed on the sliding mechanisms, the sliding mechanisms are used for driving the lifting mechanisms to lift when sliding, handcart limiting plates are installed between the two lifting mechanisms, the handcart limiting plates are located below handcart room baffles, gaps for lifting the handcart limiting plates are formed in the handcart room baffles, and damping mechanisms are fixed on the handcart limiting plates and used for buffering when the handcart limiting plates are in contact with the handcart room baffles.
Preferably, the operating lever and the rotating shaft of the grounding switch are vertically arranged, the connecting rod adopts a space four-connecting rod, the upper end of the connecting rod is sleeved on the operating lever, and the lower end of the connecting rod is sleeved on the rotating shaft of the grounding switch.
Preferably, telescopic machanism comprises the ring that keeps off, spacing fixture block, telescopic cylinder and expanding spring, the rear end surface of control rod evenly is fixed with a plurality of spacing fixture blocks, the control rod fixed surface of spacing fixture block front end has the round to keep off the ring, telescopic cylinder's inside is fixed with flexible groove, the rear end of control rod extends to inside the telescopic cylinder, spacing fixture block card is in flexible inslot, the expanding spring cover is on the control rod, and one end is supported on telescopic cylinder, and the other end supports on the ring that keeps off, back cabinet door locking mechanism fixes on telescopic cylinder rear end side.
Preferably, actuating mechanism is including rotating post, motion sleeve, sliding ball and slurcam, it is on the control rod to rotate the column jacket, it is provided with the thread groove to rotate the post surface, the motion sleeve cover is on the surface of rotating the post, the motion sleeve inside wall is fixed with the sliding ball, the sliding ball card is in the thread groove, the thread groove promotes the motion sleeve motion when control rod control earthing switch combined floodgate rotates, the motion sleeve upper end is fixed with the slurcam, the slurcam contacts with slide mechanism for promote slide mechanism motion when the motion sleeve motion.
Preferably, slide mechanism comprises sliding tray, sliding block, lift guide bracket and guide way, the sliding tray is fixed on the cubical switchboard inside wall, the inboard slidable mounting of sliding tray has the sliding block, the medial surface of sliding block is provided with by preceding ascending lift groove of hypsokinesis slant, the upper end of sliding tray is fixed with the lift guide bracket, the elevating system card is in the lift inslot, and the upper end runs through the lift guide bracket, be fixed with the guide way on the sliding tray of lift guide bracket rear end, the card is in the guide way in the slurcam upper end, the slurcam sets up at the sliding block rear end, slurcam and sliding block contact.
Preferably, elevating system comprises a lift section of thick bamboo, screens pole, extrusion spring and lifter, the lift guide holder is run through to the lifter upper end, and the lower extreme is fixed with a lift section of thick bamboo, the inside extrusion spring that is provided with of a lift section of thick bamboo, lift guide holder one end extends to a lift section of thick bamboo in, the other end card is in the lift inslot, the extrusion spring card is between a lift section of thick bamboo inner wall and screens pole.
Preferably, the handcart limiting plate comprises lower mounting panel, barrier plate and screens board, the mounting panel both ends are fixed on two elevating system down, the mounting panel upper end evenly is provided with a plurality of barrier plates down, the mounting panel side is provided with a plurality of screens boards down, leave on the handcart room baffle with barrier plate assorted lift breach.
Preferably, damper comprises motion pole, motion piece, buffer spring, buffer board, articulated seat and buffering connecting rod, and is adjacent leave the dashpot between the barrier board, the dashpot is fixed with the motion pole, the cover has two motion pieces on the motion pole, and the cover has buffer spring on the motion pole between two motion pieces and between motion piece and the dashpot lateral wall, the bottom of motion piece contacts with the bottom surface of dashpot, the upper end of motion piece and the lower extreme of buffer board all are fixed with articulated seat, the upper and lower both ends of buffering connecting rod are connected with the articulated seat of buffer board and motion piece respectively and are articulated, two the buffering connecting rod is the splayed setting.
The invention further provides a metal-enclosed switch cabinet, wherein a grounding locking mechanism is arranged on the grounding device of the switch cabinet, and the grounding locking mechanism adopts the grounding switch locking device.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the rear cabinet door is locked through the locking mechanism, the locking mechanism is connected to the operating rod through the telescopic mechanism, so that the locking mechanism can be stretched along the direction of the operating rod under the action of the telescopic mechanism, when the rear door is close to the locking mechanism, the stretching amount of the telescopic mechanism is large, when the rear door is not completely attached to the cabinet body, the rear door is far away from the locking mechanism, the stretching amount of the telescopic mechanism is small, but the rear end of the locking mechanism can be ensured to be always attached to the rear door, and the locking effect of the rear door is ensured;
2. when the operating rod rotates, the driving mechanism is driven to move, the driving mechanism drives the lifting mechanism to lift through the sliding mechanism, and then the handcart limiting plate is driven to lift, the handcart limiting plate is arranged below the handcart room baffle, namely below the handcart, when the operating rod drives the grounding switch to be switched on, the handcart limiting plate rises to block the front of the handcart, the handcart can be effectively prevented from advancing to be switched on, and if the handcart is located at a switching-on position, the handcart can press the handcart limiting plate, the operating rod can be limited reversely to rotate at the moment, and when the handcart is located at the switching-on position, the grounding switch cannot be switched on to be grounded.
Drawings
FIG. 1 is a schematic diagram of the overall front end structure of the present invention;
FIG. 2 is a schematic view of the overall rear end structure of the present invention;
FIG. 3 is a schematic structural view of a rear cabinet door locking mechanism according to the present invention;
FIG. 4 is a schematic structural view of a telescopic mechanism according to the present invention;
FIG. 5 is a schematic view of the driving mechanism of the present invention;
FIG. 6 is a schematic structural view of a sliding mechanism according to the present invention;
FIG. 7 is a schematic view of the lifting mechanism of the present invention;
fig. 8 is a schematic structural view of the damper mechanism of the present invention.
In the figure: 1 mounting plate, 2 earthing switch, 3 connecting rods, 4 operating rods, 5 fixed rotating seats, 6 telescopic mechanisms, 601 stop ring, 602 limit clamping block, 603 telescopic cylinders, 604 telescopic springs, 61 telescopic grooves, 7 rear cabinet door locking mechanisms, 701 connecting rods, 702 guide rods, 703 locking rods, 704 guide rails, 705 locking blocks, 71 locking grooves, 72 guide grooves, 8 driving mechanisms, 801 rotating columns, 802 moving sleeves, 803 sliding balls, 804 pushing plates, 81 threaded grooves, 9 sliding mechanisms, 901 sliding grooves, 902 sliding blocks, 903 lifting guide brackets, 904 guide grooves, 91 lifting grooves, 10 lifting mechanisms, 1001 lifting cylinders, 1002 clamping rods, extrusion springs, 1004 lifting rods, 11 limiting plates, 1101 lower mounting plate, 1102 blocking plates, 1103 clamping plates, 111 buffer grooves, 12 damping mechanisms, 1201 moving rods, handcart moving blocks, 1203 buffer springs, 1204 buffer plates, 1205 hinged seats, 1202 handcart moving seats, 1101 fixed blocks, 602 limit blocks, 603 telescopic cylinders, 61 telescopic springs, 7 telescopic springs, and 7 rear cabinet door locking mechanisms, 1206 buffer connecting rod, 13 handcart room baffle, 14 rear cabinet door.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
referring to fig. 1 to 8, the present invention provides a technical solution:
the utility model provides a metal enclosed switchgear earthing switch blocking device, includes mounting panel 1, earthing switch 2, connecting rod 3, control rod 4, fixed rotation seat 5, telescopic machanism 6, back cabinet door locking mechanism 7, actuating mechanism 8, slide mechanism 9, elevating system 10, handcart limiting plate 11 and damper 12, wherein:
mounting panel 1 is fixed in the cubical switchboard, install earthing switch 2 on the mounting panel 1, be connected with connecting rod 3 in earthing switch 2's the pivot, the other end of connecting rod 3 is fixed on control rod 4, control rod 4 and earthing switch 2's pivot sets up perpendicularly, connecting rod 3 adopts the four connecting rods in space, the pot head of connecting rod 3 is on control rod 4, and lower pot head is in earthing switch 2's pivot, and when control rod 4 was rotatory, drive connecting rod 3 motion, and then it is rotatory to drive earthing switch 2's pivot, finally realizes realizing switching over of switching off and combined floodgate to earthing switch.
The fixed rotating seat 5 is fixed on the inner side wall of the switch cabinet, the operating rod 4 is rotatably mounted on the fixed rotating seat 5, the operating rod 4 can freely rotate on the fixed rotating seat 5, the rear end of the operating rod 4 is provided with a telescopic mechanism 6 for extending and retracting along the direction of the operating rod 4, the telescopic mechanism 6 is composed of a stop ring 601, a limit fixture block 602, a telescopic cylinder 603 and a telescopic spring 604, the rear end surface of the operating rod 4 is uniformly fixed with a plurality of limit fixture blocks 602, the surface of the operating rod 4 at the front end of the limit fixture block 602 is fixed with a circle of stop ring 601, the telescopic cylinder 603 is fixed with a telescopic groove 61 inside, the rear end of the operating rod 4 extends into the telescopic cylinder 603, the limit fixture block 602 is clamped in the telescopic groove 61, the telescopic spring 604 is sleeved on the operating rod 4, one end of the telescopic cylinder 603 abuts against the stop ring 601, and the other end of the telescopic cylinder abuts against the stop ring 601, telescopic cylinder 603 can freely stretch out and draw back along the direction of control rod 4, and expanding spring 604 plays the effect that resets, and the driven effect is guaranteed in the cooperation of flexible groove 61 and spacing fixture block 602, guarantees telescopic cylinder 603 when letting control rod 4 rotate and can rotate along with control rod 4's rotation, back cabinet door locking mechanism 7 is fixed on telescopic cylinder 603 rear end side, and telescopic machanism 6 can stretch out and draw back along with telescopic cylinder 603 like this to drive back cabinet door locking mechanism 7 and rotate along with telescopic cylinder 603's rotation.
The rear cabinet door locking mechanism 7 is fixed at the rear end of the telescopic mechanism 6 and used for fixedly locking the rear cabinet door 14 when the grounding switch 2 is opened, the rear cabinet door locking mechanism 7 is composed of a connecting rod 701, a guide rod 702, a locking rod 703, a guide rail 704 and a locking block 705, the front end of the connecting rod 701 is fixed on the telescopic mechanism 6, the guide rod 702 and the locking rod 703 are fixed on the side surface of the rear end, the guide rail 704 and the locking block 705 are fixed on the inner side wall of the rear cabinet door 14, the front end surface of the guide rail 704 is provided with a guide groove 72 for guiding the guide rod 702 to rotate, the upper surface of the locking block 705 is provided with a locking groove 71, the positions of the guide groove 72 and the locking groove 71 respectively correspond to the positions of the guide rod 702 and the locking rod 703, the rear end part of the guide rod 702 is inserted into the guide groove 72 when the rear cabinet door 14 is closed, when the grounding switch 2 is opened, locking rod 703 blocks in locking groove 71, after back cabinet door 14 closes, guide rod 702 inserts in guide groove 72, if earthing switch 2 is in the separating brake state this moment, locking rod 703 blocks in locking groove 71 this moment, play the effect of locking to the back cabinet door 14 that is connected with latch segment 705, if control rod 4 rotates to drive earthing switch 2 and close the floodgate this moment, back cabinet door locking mechanism 7 rotates along with the rotation of control rod 4, locking rod 703 rotates out from locking groove 71, back cabinet door 14 can normally be opened this moment, when back cabinet door locking mechanism 7 rotates, guide rod 702 rotates at curved guide groove 72 thereupon, curved guide groove 72 guides guide rod 702 to move, thereby play the effect of direction to the rotation of whole back cabinet door locking mechanism 7.
The rear end of guide bar 702 extends away along the direction of connecting rod 701, when back cabinet door 14 closes like this, guide bar 702 can take the lead to insert in the guiding groove 72, along with the closing of back door, it can stretch out and draw back along 4 directions of control rod under telescopic machanism 6's effect to drive back cabinet door locking mechanism 7, back cabinet door 14 is when near apart from back cabinet door locking mechanism 7, telescopic machanism 6's flexible volume is big, when the cabinet body is not laminated completely to back cabinet door 14, apart from back cabinet door locking mechanism 7 far away, telescopic machanism 6's flexible volume is little, can guarantee hugging closely the back door that the rear end of back cabinet door locking mechanism 7 can be all the time, guarantee the locking effect of back door.
The sliding mechanism 9 and the lifting mechanism 10 are symmetrically and oppositely provided with two groups, the operating lever 4 at the front end of the grounding switch 2 is provided with a driving mechanism 8, the driving mechanism 8 comprises a rotating column 801, a moving sleeve 802, a sliding ball 803 and a pushing plate 804, the rotating column 801 is sleeved on the operating lever 4, the operating lever 4 drives the rotating column 801 to rotate when rotating, the surface of the rotating column 801 is provided with a thread groove 81, the moving sleeve 802 is sleeved on the surface of the rotating column 801, the inner side wall of the moving sleeve 802 is fixedly provided with the sliding ball 803, the sliding ball 803 is clamped in the thread groove 81, the thread groove 81 pushes the moving sleeve 802 to move when the operating lever 4 controls the grounding switch 2 to be switched on and rotate, when the rotating column 801 rotates, the sliding ball 803 moves in the thread groove 81 to further drive the moving sleeve 802 to move, the upper end of the moving sleeve 802 is fixedly provided with the pushing plate 804, the push plate 804 moves under the driving of the moving sleeve 802, the push plate 804 contacts with the sliding mechanism 9, and when the operating rod 4 drives the grounding switch 2 to close and rotate, the push plate 804 pushes the sliding block 902 to move like a front.
The driving mechanism 8 is provided with one sliding mechanism 9, the driving mechanism 8 is in contact connection with the sliding mechanism 9, the driving mechanism 8 is used for driving the sliding mechanism 9 to slide when the operating rod 4 rotates, the sliding mechanism 9 is composed of a sliding groove 901, a sliding block 902, a lifting guide support 903 and a guide groove 904, the sliding groove 901 is fixed on the inner side wall of the switch cabinet, the sliding block 902 is slidably installed inside the sliding groove 901, the sliding block 902 can slide freely along the sliding groove 901, the inner side surface of the sliding block 902 is provided with a lifting groove 91 inclined upwards from front to back, the upper end of the sliding groove 901 is fixed with the lifting guide support 903, the lifting mechanism 10 is clamped in the sliding block 91, when the pushing plate 804 pushes the sliding block 902 to move forwards, the lifting mechanism 10 moves backwards relatively along the lifting groove 91, so that lifting along the lifting groove 91 is completed, the upper end of the lifting mechanism 10 penetrates through the lifting guide support 903, the lifting guide support 903 plays a role in fixing and guiding the lifting mechanism 10, the lifting guide support 903 can only move upwards, a guide groove 904 is fixed on a sliding groove 901 in the rear end of the lifting guide support 903, the upper end of the push plate 804 is clamped in the guide groove 904, the guide groove 904 plays a role in guiding the push plate 804, the push plate 804 can only move forwards and backwards and cannot rotate, the push plate 804 is arranged at the rear end of the sliding block 902, and the push plate 804 is in contact with the sliding block 902.
The lifting mechanism 10 is installed on the sliding mechanism 9, the sliding mechanism 9 is used for driving the lifting mechanism 10 to lift when sliding, the lifting mechanism 10 is composed of a lifting cylinder 1001, a clamping rod 1002, a squeezing spring 1003 and a lifting rod 1004, the upper end of the lifting rod 1004 penetrates through a lifting guide support 903, the lifting cylinder 1001 is fixed at the lower end of the lifting rod 1004, the lifting rod 1004 can move up and down in the lifting guide support 903, the squeezing spring 1003 is arranged in the lifting cylinder 1001, one end of the clamping rod 1002 extends into the lifting cylinder, the other end of the clamping rod 1002 is clamped in the lifting groove 91, the squeezing spring 1003 is clamped between the inner wall of the lifting cylinder 1001 and the clamping rod 1002, and the squeezing spring 1003 applies elasticity to the lifting rod 1004 to enable the lifting rod to be always clamped in the lifting groove 91.
A handcart limiting plate 11 is arranged between the two lifting mechanisms 10, the handcart limiting plate 11 is positioned below the handcart room baffle 13, a gap for lifting the handcart limiting plate 11 is arranged on the handcart room baffle 13, the handcart limiting plate 11 consists of a lower mounting plate 1101, a blocking plate 1102 and a clamping plate 1103, two ends of the lower mounting plate 1101 are fixed on a lifting rod 1004 at the upper end of a lifting guide bracket 903 and can lift up and down along with the lifting of the lifting mechanisms 10, the upper end of the lower mounting plate 1101 is uniformly provided with a plurality of clamping plates 1103, the side surface of the lower mounting plate 1101 is provided with a plurality of clamping plates 1103, a lifting gap matched with the blocking plate 1102 is reserved on the handcart room baffle 13, when the handcart limiting plate 11 is lifted, only the blocking plate 1102 can leak out from the lifting gap, the clamping plate is abutted to the lower part of the handcart room baffle 1103, namely, the lifting height of the clamping plate 1103 is limited, the handcart can be supported, and the blocking plate 1103 can be prevented from being inclined when the handcart collides with the blocking plate 1103.
Through the lift that drives handcart limiting plate 11, because handcart limiting plate 11 sets up the below at handcart room baffle 13, the below of handcart promptly, when control rod 4 drives earthing switch 2 and closes a floodgate, handcart limiting plate 11 rises, block the place ahead at the handcart, can prevent effectively that the handcart from advancing and closing a floodgate, and if the handcart is when the closing a floodgate position, handcart limiting plate 11 can be pushed down to the handcart, can reverse restriction control rod 4 unable rotation this moment, when letting the handcart be in the closing a floodgate position, earthing switch 2 can't close a floodgate and carry out the ground connection.
The handcart limiting plate 11 is fixed with a shock absorption mechanism 12 which is used for playing a role of buffering when the handcart limiting plate 11 contacts with a handcart room baffle 13, the shock absorption mechanism 12 is composed of a moving rod 1201, a moving block 1202, a buffer spring 1203, a buffer plate 1204, a hinged seat 1205 and a buffer connecting rod 1206, a buffer groove 111 is reserved between the adjacent barrier plates 1102, the buffer groove 111 is fixed with the moving rod 1201, the moving rod 1201 is sleeved with two moving blocks 1202, the bottom of the moving block 1202 contacts with the bottom surface of the buffer groove 111, the moving block 1202 can only slide along the moving rod 1201, the buffer springs 1203 are sleeved on the moving rods 1201 between the two moving blocks 1202 and between the side walls of the moving block 1202 and the buffer groove 111, the upper end of the moving block 1202 and the lower end of the buffer plate 1204 are both fixed with hinged seats 1205, the upper end and the lower end of the buffer connecting rod 1206 are respectively hinged and connected with the hinged seats 1205 of the buffer plates 1204 and the moving blocks 1202, the upper and lower both ends of buffer link 1206 all can be free at the internal rotation of two articulated seats 1205, buffer link 1206 is the splayed setting, and when handcart limiting plate 11 rose, buffer board 1204 and the contact of 13 lower extremes of handcart room baffle, buffer board 1204 downstream drove two motion pieces 1202 and move to both sides, played good cushioning effect through extrusion and extension buffer spring 1203.
The invention further provides a metal-enclosed switch cabinet, wherein a grounding locking mechanism is arranged on the grounding device of the switch cabinet, and the grounding locking mechanism adopts the grounding switch locking device.
The use principle of the invention is as follows:
when the switch cabinet normally operates, the grounding switch 2 is in a switching-off state, the handcart is in a switching-on position which is a working position, the handcart can press the handcart limiting plate 11 at the moment, the operating rod 4 can be limited reversely at the moment, the handcart can not be switched on to be grounded when being in the switching-on position, the rear cabinet door 14 is closed at the moment, the rear end head part of the guide rod 702 is inserted into the guide groove 72, the locking rod 703 is clamped in the locking groove 71, and the rear door can not be opened;
when the handcart is in an overhauling state, the handcart is located at an overhauling position, namely a brake-separating position, the operating rod 4 is rotated at the moment, the operating rod 4 drives the rotating shaft of the grounding switch 2 to rotate, the earthing switch 2 is switched on, when the operating rod 4 rotates, the telescopic mechanism 6 and the locking mechanism 7 are driven to rotate, the locking rod 703 is enabled to rotate out of the locking groove 71, the rear cabinet door 14 can be normally opened at the moment, the operating rod 4 rotates to synchronously drive the movement sleeve 802 to move, meanwhile, the push plate 804 moves under the driving of the movement sleeve 802, the push plate 804 pushes the sliding block 902 to move like the front, the lifting mechanism 10 moves backwards relatively along the lifting groove 91, the lifting is achieved along the lifting groove 91, the handcart limiting plate 11 is lifted, the handcart is prevented from moving forwards, and the effect of switching on the handcart when the grounding switch 2 is switched on is achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a metal enclosed switchgear earthing switch blocking device, includes mounting panel (1), earthing switch (2), connecting rod (3), control rod (4), fixed rotation seat (5), telescopic machanism (6), back cabinet door locking mechanism (7), actuating mechanism (8), slide mechanism (9), elevating system (10), handcart limiting plate (11) and damper (12), its characterized in that:
the installation plate (1) is fixed in a switch cabinet, the installation plate (1) is provided with a grounding switch (2), a connecting rod (3) is connected to a rotating shaft of the grounding switch (2), the other end of the connecting rod (3) is fixed on an operation rod (4), a fixed rotating seat (5) is fixed on the inner side wall of the switch cabinet, the operation rod (4) is rotatably installed on the fixed rotating seat (5), the rear end of the operation rod (4) is provided with a telescopic mechanism (6) for stretching along the direction of the operation rod (4), and the rear end of the telescopic mechanism (6) is fixedly provided with a rear cabinet door locking mechanism (7) for fixedly locking a rear cabinet door (14) when the grounding switch (2) is opened;
the rear cabinet door locking mechanism (7) is composed of a connecting rod (701), a guide rod (702), a locking rod (703), a guide rail (704) and a locking block (705), the front end of the connecting rod (701) is fixed on the telescopic mechanism (6), the side face of the rear end is fixed with the guide rod (702) and the locking rod (703), the guide rail (704) and the locking block (705) are fixed on the inner side wall of the rear cabinet door (14), the front end face of the guide rail (704) is provided with a guide groove (72) for guiding the guide rod (702) to rotate, the upper surface of the locking block (705) is provided with a locking groove (71), the positions of the guide groove (72) and the locking groove (71) respectively correspond to the positions of the guide rod (702) and the locking rod (703), the rear end head part of the guide rod (702) is inserted into the guide groove (72) when the rear cabinet door (14) is closed, when the grounding switch (2) is opened, the locking rod (703) is clamped in the locking groove (71);
the handcart lifting mechanism is characterized in that two groups of sliding mechanisms (9) and two groups of lifting mechanisms (10) are symmetrically and oppositely arranged, a driving mechanism (8) is installed on a control rod (4) at the front end of the grounding switch (2), one sliding mechanism (9) is arranged above the driving mechanism (8), the driving mechanism (8) is in contact connection with the sliding mechanism (9), the driving mechanism (8) is used for driving the sliding mechanism (9) to slide when the control rod (4) rotates, the lifting mechanism (10) is installed on the sliding mechanism (9), the sliding mechanism (9) is used for driving the lifting mechanism (10) to lift when sliding, a handcart limiting plate (11) is installed between the two lifting mechanisms (10), the handcart limiting plate (11) is located below the handcart room baffle (13), and a notch for the handcart limiting plate (11) to lift is arranged on the handcart room baffle (13), and the handcart limiting plate (11) is fixedly provided with a damping mechanism (12) which is used for playing a role of buffering when the handcart limiting plate (11) is contacted with the handcart room baffle (13).
2. The metal-enclosed switchgear grounding switch blocking device according to claim 1, wherein: the operating rod (4) and the rotating shaft of the grounding switch (2) are vertically arranged, the connecting rod (3) adopts a space four-connecting rod, the upper end of the connecting rod (3) is sleeved on the operating rod (4), and the lower end of the connecting rod is sleeved on the rotating shaft of the grounding switch (2).
3. The metal-enclosed switchgear grounding switch blocking device according to claim 1, wherein: telescopic machanism (6) comprise by keeping off ring (601), spacing fixture block (602), telescopic cylinder (603) and expanding spring (604), the rear end surface uniform fixation of operating rod (4) has a plurality of spacing fixture blocks (602), operating rod (4) surface fixation of spacing fixture block (602) front end has round to keep off ring (601), the inside of telescopic cylinder (603) is fixed with flexible groove (61), the rear end of operating rod (4) extends to inside telescopic cylinder (603), spacing fixture block (602) card is in flexible groove (61), expanding spring (604) cover is on operating rod (4), and one end is supported on telescopic cylinder (603), and the other end supports on keeping off ring (601), back cabinet door locking mechanism (7) are fixed on telescopic cylinder (603) rear end side.
4. The metal-enclosed switchgear cabinet grounding switch locking device of claim 1, wherein: the driving mechanism (8) comprises a rotating column (801), a moving sleeve (802), a sliding ball (803) and a pushing plate (804), the rotating column (801) is sleeved on the operating rod (4), a threaded groove (81) is formed in the surface of the rotating column (801), the moving sleeve (802) is sleeved on the surface of the rotating column (801), the sliding ball (803) is fixed on the inner side wall of the moving sleeve (802), the sliding ball (803) is clamped in the threaded groove (81), the threaded groove (81) pushes the moving sleeve (802) to move when the operating rod (4) controls the grounding switch (2) to rotate, the pushing plate (804) is fixed at the upper end of the moving sleeve (802), and the pushing plate (804) is in contact with the sliding mechanism (9) and used for pushing the sliding mechanism (9) to move when the moving sleeve (802) is switched on.
5. The metal-enclosed switchgear cabinet grounding switch locking device of claim 4, wherein: the sliding mechanism (9) is composed of a sliding groove (901), a sliding block (902), a lifting guide bracket (903) and a guide groove (904), the sliding groove (901) is fixed on the inner side wall of the switch cabinet, a sliding block (902) is installed inside the sliding groove (901) in a sliding manner, the inner side surface of the sliding block (902) is provided with a lifting groove (91) inclining upwards from the front to the rear, a lifting guide support (903) is fixed at the upper end of the sliding groove (901), the lifting mechanism (10) is clamped in the lifting groove (91), the upper end of the lifting guide support (903) penetrates through the lifting guide support, a guide groove (904) is fixed on a sliding groove (901) at the rear end of the lifting guide bracket (903), the upper end of the push plate (804) is clamped in the guide groove (904), the push plate (804) is arranged at the rear end of the sliding block (902), and the push plate (804) is in contact with the sliding block (902).
6. The metal-enclosed switchgear cabinet grounding switch locking device of claim 5, wherein: the lifting mechanism (10) is composed of a lifting cylinder (1001), a clamping rod (1002), an extrusion spring (1003) and a lifting rod (1004), wherein the upper end of the lifting rod (1004) penetrates through the lifting guide support (903), the lower end of the lifting rod is fixed with the lifting cylinder (1001), the extrusion spring (1003) is arranged inside the lifting cylinder (1001), one end of the clamping rod (1002) extends into the lifting cylinder (1001), the other end of the clamping rod is clamped in the lifting groove (91), and the extrusion spring (1003) is clamped between the inner wall of the lifting cylinder (1001) and the clamping rod (1002).
7. The metal-enclosed switchgear cabinet grounding switch locking device of claim 1, wherein: handcart limiting plate (11) comprises lower mounting panel (1101), barrier plate (1102) and screens board (1103), mounting panel (1101) both ends are fixed on two elevating system (10) down, mounting panel (1101) upper end evenly is provided with a plurality of barrier plate (1102) down, mounting panel (1101) side is provided with a plurality of screens boards (1103) down, leave on handcart room baffle (13) and block board (1102) assorted lift breach.
8. The metal-enclosed switchgear cabinet grounding switch locking device of claim 7, wherein: the damping mechanism (12) is composed of moving rods (1201), moving blocks (1202), buffer springs (1203), buffer plates (1204), hinged seats (1205) and buffer connecting rods (1206), buffer grooves (111) are reserved between adjacent barrier plates (1102), the moving rods (1201) are fixed in the buffer grooves (111), the moving rods (1201) are sleeved with the two moving blocks (1202), the buffer springs (1203) are sleeved on the moving rods (1201) between the two moving blocks (1202) and between the moving blocks (1202) and the side walls of the buffer grooves (111), the bottoms of the moving blocks (1202) are in contact with the bottom surfaces of the buffer grooves (111), the hinged seats (1205) are fixed at the upper ends of the moving blocks (1202) and the lower ends of the buffer plates (1204), and the upper ends and the lower ends of the buffer connecting rods (1206) are hinged with the buffer plates (1204) and the hinged seats (1205) of the moving blocks (1204) respectively, the two buffer connecting rods (1206) are arranged in a splayed shape.
9. A metal-enclosed switchgear characterized in that: the grounding locking mechanism is mounted on the grounding device of the switch cabinet, and the grounding locking mechanism adopts the grounding switch locking device of any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210512034.3A CN114629040B (en) | 2022-05-12 | 2022-05-12 | Metal-enclosed switchgear grounding switch locking device and switchgear thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210512034.3A CN114629040B (en) | 2022-05-12 | 2022-05-12 | Metal-enclosed switchgear grounding switch locking device and switchgear thereof |
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| Publication Number | Publication Date |
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| CN114629040A CN114629040A (en) | 2022-06-14 |
| CN114629040B true CN114629040B (en) | 2022-09-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202167780U (en) * | 2011-08-22 | 2012-03-14 | 新疆昆仑电气有限公司 | Interlocking device for grounding switch operating mechanism of switch cabinet |
| CN205723217U (en) * | 2016-02-24 | 2016-11-23 | Abb技术有限公司 | Interlock on air insulated switch equipment and air insulated switch equipment |
| CN208539437U (en) * | 2018-09-06 | 2019-02-22 | 华仪电气股份有限公司 | A kind of five-prevention interlocking device and the hands injured with it |
| CN113161916A (en) * | 2021-04-20 | 2021-07-23 | 国网江苏省电力有限公司宿迁供电分公司 | Split type maintenance grounding device of middle-arranged switch cabinet |
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