CN114242484A - Integrated interlocking mechanism for ring main unit - Google Patents

Integrated interlocking mechanism for ring main unit Download PDF

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Publication number
CN114242484A
CN114242484A CN202111554084.XA CN202111554084A CN114242484A CN 114242484 A CN114242484 A CN 114242484A CN 202111554084 A CN202111554084 A CN 202111554084A CN 114242484 A CN114242484 A CN 114242484A
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CN
China
Prior art keywords
block
pulling
rod
fixing
locking assembly
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Granted
Application number
CN202111554084.XA
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Chinese (zh)
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CN114242484B (en
Inventor
张梦荷
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Nanjing Bell Electrical Equipment Co ltd
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Nanjing Bell Electrical Equipment Co ltd
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Priority to CN202111554084.XA priority Critical patent/CN114242484B/en
Publication of CN114242484A publication Critical patent/CN114242484A/en
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Publication of CN114242484B publication Critical patent/CN114242484B/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20Interlocking, locking, or latching mechanisms
    • H01H9/22Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/30Cabinet-type casings; Parts thereof or accessories therefor
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Catching Or Destruction (AREA)

Abstract

The invention relates to an integrated interlocking mechanism for a ring main unit, which comprises an upper locking assembly, a lower locking assembly and a locking assembly, wherein the lower locking assembly comprises a fixed pipe, a first fixed block, a first connecting block, a first insert rod, a first spring and a pull plate, the upper locking assembly comprises a second fixed block, a second connecting block, a second insert rod, a second spring and a pull block, the locking assembly comprises a limiting unit and a pulling unit, the integrated interlocking mechanism for the ring main unit realizes the locking of a lower cabinet door through the lower locking assembly, realizes the locking of an upper cabinet door through the upper locking assembly, can open the upper cabinet door only after the lower cabinet door is opened through the locking assembly, improves the safety, increases the opening step of the upper cabinet door through the pulling unit, better avoids the mistaken opening of the upper cabinet door, further improves the safety, and passes through the elastic restoring force of a pull rope, the pulling force that needs when having increased the cabinet door and opening to better avoid the mistake to open, improved the practicality.

Description

Integrated interlocking mechanism for ring main unit
Technical Field
The invention relates to an integrated interlocking mechanism for a ring main unit.
Background
The ring main unit is an electrical device with a group of high-voltage switch devices arranged in a steel plate metal main unit body or made into an assembled interval ring main unit, the core part of the ring main unit adopts a load switch and a fuse, a mechanical interlocking device is arranged between the load switch, an earthing switch and a front panel, and the earthing switch and the load switch are generally respectively arranged in two main units.
Present mechanical interlocking device is when using, earthing switch's cabinet door is opened the back, goes up locking mechanical system on the cabinet door and will unblock thereupon, then under simple operation, generally just can realize opening of load switch cabinet door, generally not use the multilayer protection, the security is not high, and generally reset through the restoring force of spring, the spring is after long-time the use, its elasticity restoring force will weaken, it is littleer to cause the power that needs to use when opening, thereby it opens more easily to cause the cabinet door, thereby probably cause the mistake to open.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, an integrated interlocking mechanism for a ring main unit is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows: an integrated interlocking mechanism for a ring main unit comprises an upper locking assembly, a lower locking assembly and a locking assembly, wherein the upper locking assembly is connected with the lower locking assembly through the locking assembly;
the lower locking component comprises a fixed pipe, a first fixed block, a first connecting block, a first insert rod, a first spring and a pulling plate, the fixed pipe is arranged on the cabinet body through a bolt, a vertical chute is arranged on the fixed pipe, one end of the pulling plate is arranged in the fixed pipe, the other end of the pulling plate extends out of the chute, the pulling plate is in sliding connection with the chute, one end of the first insert rod is arranged in the fixed pipe and is connected with the pulling plate, the other end of the first insert rod extends out of the fixed pipe, the first spring is sleeved on the first insert rod and is arranged in the fixed pipe, one end of the first spring is connected with the fixed pipe, the other end of the first spring is connected with the pulling plate, the first fixed block is arranged on one side of the fixed pipe close to the first insert rod, the first fixed block is arranged on the cabinet body through a bolt, the first connecting block is arranged on the cabinet door below through a bolt, the first connecting block is positioned on one side, far away from the fixed pipe, of the first fixing block, and the first inserting rod sequentially penetrates through the first fixing block and the first connecting block;
the upper locking assembly comprises a second fixed block, a second connecting block, a second inserting rod, a second spring and a pulling block, the second fixed block is arranged on one side, far away from the first fixed block, of the fixed pipe, the second fixed block is fixed on the cabinet body through bolts, the second connecting block is arranged between the second fixed block and the fixed pipe, the second connecting block is fixed on the cabinet door above the cabinet body through bolts, one end of the second inserting rod is located in the fixed pipe, the other end of the second inserting rod extends out of the fixed pipe, the second inserting rod sequentially penetrates through the second connecting block and the second fixed block, the pulling block is arranged at one end, far away from the fixed pipe, of the second inserting rod, the second spring is arranged on the second inserting rod in a sleeved mode, one end of the second spring is connected with the pulling block, and the other end of the second spring is connected with the second fixed block.
As preferred, the locking subassembly includes spacing unit and pulling unit, spacing unit includes movable plate, stopper, bull stick and kelly, the movable plate sets up on the arm-tie, the movable plate is located one side that first spring was kept away from to the arm-tie, the stopper sets up on the movable plate, be equipped with the recess on the stopper, the cross-section of recess is isosceles triangle, the both sides of recess are equipped with the chamfer, the one end and the second inserted bar of bull stick are located the one end of fixed tube and articulate, the articulated department of bull stick and second inserted bar is equipped with the torsional spring, the kelly sets up the one end of keeping away from the second inserted bar at the bull stick, the kelly is located the recess, the kelly supports with the bottom of recess and leans on, the bull stick passes through the pulling unit and is connected with the arm-tie.
Here kelly card is in the recess on the stopper, when the lower cabinet door is not opened, the pulling draws the piece, draw piece drive second inserted bar to remove, second inserted bar drive kelly removes, kelly drive stopper removes, the stopper removes when fixed tub of top, receive fixed tub of stopping, the stopper can't remove, thereby make the kelly can't remove, thereby make the second inserted bar can't remove, thereby make first linkage block can't rotate, thereby when making lower cabinet door not open, go up the cabinet door and can't open all the time, and the security is improved.
When the upper cabinet door needs to be opened, the pulling plate is pulled to open the lower cabinet door, the pulling plate moves to enable the movable plate to move, the movable plate drives the limiting block to move, when the lower cabinet door is opened, the moving distance of the pulling plate is smaller than the depth of the groove, so that the clamping rod is still remained in the groove, the upper cabinet door cannot be opened, after the lower cabinet door is opened, the pulling plate is continuously pulled to enable the limiting block to continuously move upwards, so that the clamping rod moves out of the groove, at the moment, the torsional spring at the hinged position of the rotating rod and the second insertion rod is in a deformation state, the rotating rod rotates towards one side under the restoring force of the torsional spring, so that the clamping rod rotates out of the groove, then slides to one side of the limiting block along a chamfer on the limiting block, so that the clamping rod cannot be blocked by the limiting block, then the pulling block is pulled, so that the second insertion rod and the rotating rod simultaneously move out of the second connecting block, so that the locking state of the upper cabinet door is released, the upper cabinet door can be opened.
Preferably, the pulling unit includes that stay cord, solid fixed ring and lobster buckle, gu fixed ring sets up on the bull stick, the lobster buckle cover is established on solid fixed ring, the one end and the lobster buckle of stay cord are connected, the other end of stay cord stretches out the fixed tube and is connected with the arm-tie outward.
The pulling plate drives the pulling rope to move upwards along with the upward movement of the pulling plate, so that the distance between the pulling plate and the second positioning wheel is increased, the distance between the rotating rod and the first positioning wheel is reduced, the pulling rope pulls the rotating rod to deviate towards one side of the lobster buckle, and the clamping rod is better moved out of the groove, wherein the pulling rope is an elastic rope, the clamping rod is blocked by the groove and cannot move when the clamping rod is in the groove, so that the pulling rope is stretched, the elastic restoring force of the pulling rope increases the pulling force of the pulling plate, so that the pulling plate can be opened only under enough force applied by an operator, the force applied during opening is increased, the mistaken opening is better avoided, the safety is improved, and after the rotating rod is moved out of the fixed pipe, the lobster buckle is required to be taken down from the fixed ring firstly, so that the rotating rod can be moved out of the second connecting block, and the opening step is increased, the safety is further improved.
Preferably, be equipped with the positioning unit on the stay cord, the positioning unit includes first locating wheel and second locating wheel, first locating wheel and second locating wheel all set up the homonymy at fixed pipe, first locating wheel flushes with solid fixed ring, the second locating wheel is located the arm-tie under, first locating wheel and second locating wheel are walked around in proper order to the stay cord.
Preferably, one end of the first insertion rod, which is far away from the pulling plate, is provided with a stop lever, the stop lever is hinged to the first insertion rod, and a torsional spring is arranged at the hinged position of the stop lever and the first insertion rod.
Preferably, a wedge block is arranged on one side, away from the pulling plate, of the limiting block.
When the locking is performed again, the rotating rod can reversely rotate along the inclined surface of the wedge block, so that the rotating rod can better move into the groove.
Preferably, the top of the fixed pipe is provided with a fixed column.
After the lobster buckle is taken down, the lobster buckle is buckled on the fixing column, so that the lobster buckle is prevented from falling into the fixing tube.
The integrated interlocking mechanism for the ring main unit has the advantages that the lower cabinet door is locked through the lower locking assembly, the upper cabinet door is locked through the upper locking assembly, the upper locking assembly is limited through the locking assembly, the upper cabinet door can be opened only after the lower cabinet door is opened, safety is improved, the opening step of the upper cabinet door is increased through the pulling unit, mistaken opening of the upper cabinet door is better avoided, safety is further improved, and pulling force required when the upper cabinet door is opened is increased through elastic restoring force of the pull rope, so that mistaken opening is better avoided, and practicability is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural diagram of an integrated interlocking mechanism for a ring main unit according to the present invention;
FIG. 2 is a schematic structural diagram of an integrated interlocking mechanism for a ring main unit according to the present invention;
FIG. 3 is a schematic structural view of a lower locking assembly of the integrated interlocking mechanism for ring main units of the present invention;
FIG. 4 is a schematic structural view of an upper locking assembly of the integrated interlocking mechanism for ring main units of the present invention;
fig. 5 is a schematic structural diagram of a limiting unit of the integrated interlocking mechanism for the ring main unit according to the present invention;
FIG. 6 is an enlarged view of portion A of FIG. 1;
in the figure: 1. the lobster fixing device comprises a fixed pipe, 2, a first fixed block, 3, a first connecting block, 4, a first inserting rod, 5, a first spring, 6, a pulling plate, 7, a second fixed block, 8, a second connecting block, 9, a second inserting rod, 10, a second spring, 11, a pulling block, 12, a moving plate, 13, a limiting block, 14, a rotating rod, 15, a clamping rod, 16, a pulling rope, 17, a fixed ring, 18, a lobster buckle, 19, a first positioning wheel, 20, a second positioning wheel, 21, a stop lever, 22, a wedge block and 23, and a fixed column.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, an integrated interlocking mechanism for a ring main unit comprises an upper locking assembly, a lower locking assembly and a locking assembly, wherein the upper locking assembly is connected with the lower locking assembly through the locking assembly;
as shown in fig. 2-3, the lower locking assembly includes a fixed tube 1, a first fixed block 2, a first connecting block 3, a first inserting rod 4, a first spring 5 and a pulling plate 6, the fixed tube 1 is disposed on the cabinet body through a bolt, a vertical chute is disposed on the fixed tube 1, one end of the pulling plate 6 is located in the fixed tube 1, the other end of the pulling plate 6 extends out of the chute, the pulling plate 6 is slidably connected with the chute, one end of the first inserting rod 4 is located in the fixed tube 1 and is connected with the pulling plate 6, the other end of the first inserting rod 4 extends out of the fixed tube 1, the first spring 5 is sleeved on the first inserting rod 4, the first spring 5 is located in the fixed tube 1, one end of the first spring 5 is connected with the fixed tube 1, the other end of the first spring 5 is connected with the pulling plate 6, the first fixed block 2 is disposed on one side of the fixed tube 1 close to the first inserting rod 4, the first fixing block 2 is arranged on the cabinet body through a bolt, the first connecting block 3 is arranged on a cabinet door below the first fixing block 2 through a bolt, the first connecting block 3 is located on one side, away from the fixing pipe 1, of the first fixing block 2, and the first inserting rod 4 sequentially penetrates through the first fixing block 2 and the first connecting block 3;
here, the cabinet door of below is earthing switch, be load switch in the cabinet door of top, when the cabinet door of top needs to be opened, need open the cabinet door of below earlier, pulling arm-tie 6 drives first inserted bar 4 and removes, make first inserted bar 4 shift out in by first connecting block 3, thereby make first connecting block 3 not receive and block, can rotate first connecting block 3, thereby open the cabinet door of earthing switch department, here pin 21 is perpendicular with first inserted bar 4, thereby make pin 21 block first connecting block 3, avoid first inserted bar 4 mistake to open, simultaneously when opening, the pulling force need be greater than the restoring force sum of first spring 5 and the torsional spring of pin 21 department, just can make first inserted bar 4 shift out first connecting block 3, and the safety is improved.
As shown in fig. 4, the upper locking assembly includes a second fixed block 7, a second connecting block 8, a second inserting rod 9, a second spring 10 and a pulling block 11, the second fixed block 7 is disposed on one side of the fixed pipe 1 far from the first fixed block 2, the second fixed block 7 is fixed on the cabinet body through a bolt, the second connecting block 8 is disposed between the second fixed block 7 and the fixed pipe 1, the second connecting block 8 is fixed on the cabinet door above through a bolt, one end of the second inserting rod 9 is located in the fixed pipe 1, the other end of the second inserting rod 9 extends out of the fixed pipe 1, the second inserting rod 9 sequentially passes through the second connecting block 8 and the second fixed block 7, the pulling block 11 is disposed at one end of the second inserting rod 9 far from the fixed pipe 1, the second spring 10 is sleeved on the second inserting rod 9, one end of the second spring 10 is connected with the pulling block 11, the other end of the second spring 10 is connected with the second fixed block 7.
When the upper cabinet door needs to be opened, the pulling block 11 pulls the second insertion rod 9 to move, so that the second insertion rod 9 moves out of the second connecting block 8, the second connecting block 8 can be rotated, and the cabinet door above the cabinet door can be opened.
As shown in fig. 5, the locking assembly preferably includes a limit unit and a pulling unit, the limit unit includes a moving plate 12, a limit block 13, a rotating lever 14 and a catching lever 15, the moving plate 12 is arranged on the pulling plate 6, the moving plate 12 is positioned on one side of the pulling plate 6 far away from the first spring 5, the limiting block 13 is arranged on the moving plate 12, a groove is arranged on the limiting block 13, the section of the groove is in an isosceles triangle shape, chamfers are arranged on two sides of the groove, one end of the rotating rod 14 is hinged with one end of the second inserting rod 9 positioned in the fixed pipe 1, a torsion spring is arranged at the hinged position of the rotating rod 14 and the second inserted link 9, the clamping rod 15 is arranged at one end of the rotating rod 14 far away from the second inserted link 9, the clamping rod 15 is located in the groove, the clamping rod 15 abuts against the bottom of the groove, and the rotating rod 14 is connected with the pulling plate 6 through the pulling unit.
Here, clamping rod 15 is blocked in the recess on stopper 13, when the cabinet door is not opened down, the pulling pulls piece 11, pull piece 11 drive second inserted bar 9 and remove, second inserted bar 9 drive clamping rod 15 removes, clamping rod 15 drive stopper 13 removes, stopper 13 removes when fixed pipe 1 top, receive fixed pipe 1 and block, stopper 13 can't remove, thereby make clamping rod 15 can't remove, thereby make second inserted bar 9 can't remove, thereby make first connecting block 3 can't rotate, thereby when making the cabinet door not open down, go up the cabinet door and can't open all the time, and the security is improved.
When the upper cabinet door needs to be opened, the pulling plate 6 is pulled to open the lower cabinet door, the pulling plate 6 moves to enable the moving plate 12 to move, the moving plate 12 drives the limiting block 13 to move, when the lower cabinet door is opened, the moving distance of the pulling plate 6 is smaller than the depth of the groove, so that the clamping rod 15 is still left in the groove, the upper cabinet door cannot be opened, after the lower cabinet door is opened, the pulling plate 6 is continuously pulled upwards to enable the limiting block 13 to continue to move upwards, so that the clamping rod 15 moves out of the groove, at the moment, the torsional spring at the hinged position of the rotating rod 14 and the second insertion rod 9 is in a deformation state, the rotating rod 14 rotates towards one side under the restoring force of the torsional spring, so that the clamping rod 15 rotates out of the groove, then slides to one side of the limiting block 13 along a chamfer on the limiting block 13, so that the clamping rod 15 is not blocked by the limiting block 13, then the pulling block 11 is pulled, so that the second insertion rod 9 and the rotating rod 14 move out of the second connecting block 8 at the same time, thereby releasing the locking state of the upper cabinet door and opening the upper cabinet door.
As shown in fig. 6, the pulling unit preferably comprises a pulling rope 16, a fixing ring 17 and a lobster buckle 18, wherein the fixing ring 17 is arranged on the rotating rod 14, the lobster buckle 18 is sleeved on the fixing ring 17, one end of the pulling rope 16 is connected with the lobster buckle 18, and the other end of the pulling rope 16 extends out of the fixing pipe 1 and is connected with the pulling plate 6.
Here, as the pulling plate 6 moves upwards, the pulling plate 6 drives the pulling rope 16 to move upwards, so that the distance between the pulling plate 6 and the second positioning wheel 20 is increased, so that the distance between the rotating rod 14 and the first positioning wheel 19 is reduced, so that the pulling rope 16 pulls the rotating rod 14 to deviate towards one side of the lobster buckle 18, so that the clamping rod 15 can better move out of the groove, here, the pulling rope 16 is an elastic rope, when the clamping rod 15 is in the groove, the clamping rod 15 is blocked by the groove and can not move, so that the pulling rope 16 stretches, the elastic restoring force of the pulling rope 16 increases the pulling force on the pulling plate 6, so that the pulling plate 6 can be opened only under enough force applied by an operator, so that the force applied when the pulling plate is opened is increased, the mistaken opening is better avoided, the safety is improved, and after the rotating rod 14 moves out of the fixing tube 1, the lobster buckle 18 needs to be taken off from the fixing ring 17 first, thereby enabling the turning bar 14 to be moved out of the second connecting block 8, increasing the opening step and further improving the safety.
Preferably, a positioning unit is arranged on the pulling rope 16, the positioning unit comprises a first positioning wheel 19 and a second positioning wheel 20, the first positioning wheel 19 and the second positioning wheel 20 are both arranged on the same side of the fixed pipe 1, the first positioning wheel 19 is flush with the fixed ring 17, the second positioning wheel 20 is positioned under the pulling plate 6, and the pulling rope 16 sequentially bypasses the first positioning wheel 19 and the second positioning wheel 20.
Preferably, one end of the first inserting rod 4, which is far away from the pulling plate 6, is provided with a stop lever 21, the stop lever 21 is hinged to the first inserting rod 4, and a torsional spring is arranged at the hinged position of the stop lever 21 and the first inserting rod 4.
Preferably, a wedge 22 is arranged on one side of the limiting block 13 far away from the pulling plate 6.
When locked again, the turn bar 14 will rotate back along the inclined surface of the wedge 22, thereby allowing the turn bar 14 to better move into the recess.
Preferably, the top of the fixed pipe 1 is provided with a fixed column 23.
After the lobster buckle 18 is taken down, the lobster buckle 18 is buckled on the fixing column 23, so that the lobster buckle 18 is prevented from falling into the fixing tube 1.
Compared with the prior art, this an integral type interlocking device for looped netowrk cabinet, realize the locking of lower cabinet door through lower part locking subassembly, realize the locking of upper cabinet door through upper portion locking subassembly, it is spacing to upper portion locking subassembly through the locking subassembly, make the back of opening of lower cabinet door, just can make the upper cabinet door open, the security has been improved, the step of opening of upper cabinet door has been increased through the pulling unit, realize the dual fail-safe, the better mistake of having avoided the upper cabinet door is opened, further improvement the security, and the elastic restoring force through stay cord 16, the pulling force that needs when having increased the upper cabinet door and opening, thereby the better mistake of having avoided is opened, the practicality has been improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (7)

1. An integrated interlocking mechanism for a ring main unit is characterized by comprising an upper locking assembly, a lower locking assembly and a locking assembly, wherein the upper locking assembly is connected with the lower locking assembly through the locking assembly;
the lower locking component comprises a fixed pipe (1), a first fixed block (2), a first connecting block (3), a first insert rod (4), a first spring (5) and a pulling plate (6), the fixed pipe (1) is arranged on the cabinet body through a bolt, a vertical sliding groove is formed in the fixed pipe (1), one end of the pulling plate (6) is located in the fixed pipe (1), the other end of the pulling plate (6) extends out of the sliding groove, the pulling plate (6) is in sliding connection with the sliding groove, one end of the first insert rod (4) is located in the fixed pipe (1) and is connected with the pulling plate (6), the other end of the first insert rod (4) extends out of the fixed pipe (1), the first spring (5) is sleeved on the first insert rod (4), the first spring (5) is located in the fixed pipe (1), one end of the first spring (5) is connected with the fixed pipe (1), the other end of the first spring (5) is connected with a pulling plate (6), the first fixing block (2) is arranged on one side, close to the first insertion rod (4), of the fixing pipe (1), the first fixing block (2) is arranged on the cabinet body through a bolt, the first connecting block (3) is arranged on the cabinet door below the first fixing block (2) through a bolt, the first connecting block (3) is located on one side, far away from the fixing pipe (1), of the first fixing block (2), and the first insertion rod (4) sequentially penetrates through the first fixing block (2) and the first connecting block (3);
the upper locking assembly comprises a second fixing block (7), a second connecting block (8), a second inserting rod (9), a second spring (10) and a pulling block (11), the second fixing block (7) is arranged on one side, far away from the first fixing block (2), of the fixing pipe (1), the second fixing block (7) is fixed on the cabinet body through bolts, the second connecting block (8) is arranged between the second fixing block (7) and the fixing pipe (1), the second connecting block (8) is fixed on the cabinet door above the fixing pipe through bolts, one end of the second inserting rod (9) is located in the fixing pipe (1), the other end of the second inserting rod (9) extends out of the fixing pipe (1), the second inserting rod (9) sequentially penetrates through the second connecting block (8) and the second fixing block (7), the pulling block (11) is arranged at one end, far away from the fixing pipe (1), of the second inserting rod (9), the second spring (10) is sleeved on the second inserted rod (9), one end of the second spring (10) is connected with the pulling block (11), and the other end of the second spring (10) is connected with the second fixing block (7).
2. The integrated interlocking mechanism for the ring main unit according to claim 1, wherein the locking assembly comprises a limiting unit and a pulling unit, the limiting unit comprises a moving plate (12), a limiting block (13), a rotating rod (14) and a clamping rod (15), the moving plate (12) is arranged on the pulling plate (6), the moving plate (12) is arranged on one side of the pulling plate (6) far away from the first spring (5), the limiting block (13) is arranged on the moving plate (12), a groove is arranged on the limiting block (13), the cross section of the groove is an isosceles triangle, chamfers are arranged on two sides of the groove, one end of the rotating rod (14) is hinged with one end of the second inserting rod (9) in the fixed pipe (1), a torsion spring is arranged at the hinged position of the rotating rod (14) and the second inserting rod (9), and the clamping rod (15) is arranged at one end of the rotating rod (14) far away from the second inserting rod (9), the clamping rod (15) is located in the groove, the clamping rod (15) is abutted to the bottom of the groove, and the rotating rod (14) is connected with the pulling plate (6) through the pulling unit.
3. The integrated interlocking mechanism for the ring main unit as claimed in claim 2, wherein the pulling unit comprises a pulling rope (16), a fixing ring (17) and a lobster clasp (18), the fixing ring (17) is arranged on the rotating rod (14), the lobster clasp (18) is sleeved on the fixing ring (17), one end of the pulling rope (16) is connected with the lobster clasp (18), and the other end of the pulling rope (16) extends out of the fixing tube (1) to be connected with the pulling plate (6).
4. The integrated interlocking mechanism for the ring main unit as claimed in claim 3, wherein the pulling rope (16) is provided with a positioning unit, the positioning unit comprises a first positioning wheel (19) and a second positioning wheel (20), the first positioning wheel (19) and the second positioning wheel (20) are both arranged on the same side of the fixed pipe (1), the first positioning wheel (19) is flush with the fixed ring (17), the second positioning wheel (20) is arranged under the pulling plate (6), and the pulling rope (16) sequentially bypasses the first positioning wheel (19) and the second positioning wheel (20).
5. The integrated interlocking mechanism for the ring main unit according to claim 1, wherein a stop lever (21) is disposed at an end of the first inserting rod (4) far away from the pulling plate (6), the stop lever (21) is hinged to the first inserting rod (4), and a torsion spring is disposed at a hinged position of the stop lever (21) and the first inserting rod (4).
6. The integrated interlocking mechanism for the ring main unit according to claim 2, wherein the side of the limiting block (13) far away from the pulling plate (6) is provided with a wedge block (22).
7. The integrated interlocking mechanism for the ring main unit as claimed in claim 1, wherein the top of the fixing tube (1) is provided with a fixing column (23).
CN202111554084.XA 2021-12-17 2021-12-17 Integrated interlocking mechanism for ring main unit Active CN114242484B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111554084.XA CN114242484B (en) 2021-12-17 2021-12-17 Integrated interlocking mechanism for ring main unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111554084.XA CN114242484B (en) 2021-12-17 2021-12-17 Integrated interlocking mechanism for ring main unit

Publications (2)

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CN114242484A true CN114242484A (en) 2022-03-25
CN114242484B CN114242484B (en) 2023-10-20

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN206163975U (en) * 2016-10-20 2017-05-10 莱福士电力电子设备(深圳)有限公司 Cubical switchboard door interlocking device and cubical switchboard
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CN113135504A (en) * 2021-04-06 2021-07-20 刘晓慧 Steel pipe lifting device for bridge construction
CN213810172U (en) * 2020-10-21 2021-07-27 江苏顺达机械设备有限公司 LED street lamp convenient to overhaul
CN113566159A (en) * 2021-07-20 2021-10-29 广州市越秀区馨静网络科技有限公司 LED street lamp convenient to overhaul and having lifting function

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Publication number Priority date Publication date Assignee Title
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CN206163975U (en) * 2016-10-20 2017-05-10 莱福士电力电子设备(深圳)有限公司 Cubical switchboard door interlocking device and cubical switchboard
CN209029784U (en) * 2018-11-21 2019-06-25 亚洲电力设备(深圳)股份有限公司 A kind of ring network cabinet interlocking mechanism
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CN213810172U (en) * 2020-10-21 2021-07-27 江苏顺达机械设备有限公司 LED street lamp convenient to overhaul
CN113135504A (en) * 2021-04-06 2021-07-20 刘晓慧 Steel pipe lifting device for bridge construction
CN113566159A (en) * 2021-07-20 2021-10-29 广州市越秀区馨静网络科技有限公司 LED street lamp convenient to overhaul and having lifting function

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