CN108648968B - Circuit breaker insulation pull rod with function of increasing creepage distance and creepage distance increasing method - Google Patents
Circuit breaker insulation pull rod with function of increasing creepage distance and creepage distance increasing method Download PDFInfo
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- CN108648968B CN108648968B CN201810842896.6A CN201810842896A CN108648968B CN 108648968 B CN108648968 B CN 108648968B CN 201810842896 A CN201810842896 A CN 201810842896A CN 108648968 B CN108648968 B CN 108648968B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
Abstract
The invention discloses a circuit breaker insulation pull rod with a climbing distance increasing function and a climbing distance increasing method, comprising a connection insulation rod body, a first connector and a second connector, wherein the first connector is in threaded connection with one end of the connection insulation rod body; the second connector comprises an inner end connector and an outer end connector, the inner end connector and the outer end connector are of telescopic structures, a first spring is installed between the inner side of a spline shaft section and the bottom of a connecting sleeve, a movable adjusting disc is sleeved at the outer end of the outer end connector, a plurality of movable adjusting rods are arranged on the movable adjusting disc in a surrounding mode, adjusting holes are formed in sleeve joints corresponding to the adjusting umbrella skirt sleeves and correspond to the movable adjusting rods, the movable adjusting rods penetrate through the adjusting holes, triangular support rod frame devices are symmetrically arranged at the outer ends of the movable adjusting rods, and port sealing cap pieces are arranged on ports of the sleeve joints.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a circuit breaker insulation pull rod with a creepage distance increasing function and a creepage distance increasing method.
Background
Because the bounce of the contact during opening and closing of the circuit breaker seriously affects the opening and closing performance of the circuit breaker, the factors affecting the bounce of the opening and closing of the circuit breaker mainly include: the mass, speed, contact pressure of the moving parts, and the rigidity of the insulated pull rod. The whole insulating pull rod used at present is rigid, and a contact rigidly connected with the insulating pull rod can generate larger-amplitude bouncing at the moment of opening and closing, so that the opening and closing performance of the circuit breaker is seriously affected.
Because the circuit breaker generates discharge and mainly concentrates at the moment of opening and closing the arc extinguishing chamber, the insulating pull rod is easy to be in insulation failure at the moment of opening and closing the arc extinguishing chamber of the circuit breaker, so that safety accidents occur.
In addition, the length of the existing insulating pull rod can be adjusted according to the actual installation and debugging requirements, the length can be adjusted in some ways, and when the insulating pull rod cannot be locked and the connector cannot be locked relatively, the length of the insulating pull rod can be changed in the operation process, so that effective control of the arc extinguishing chamber is affected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides the insulating pull rod of the circuit breaker with the function of increasing the creepage distance, and solves the problem that the insulating pull rod is easy to fail in insulation and causes safety accidents when the arc extinguishing chamber of the circuit breaker is opened and closed.
And solve current insulating pull rod though have length adjustment function, when adjusting the extension through the lead screw, but the unable locking of length makes insulating pull rod in the use easily, insulating pull rod can appear length variation to influence the effective control problem to the explosion chamber.
The invention is realized by the following technical scheme:
the circuit breaker insulation pull rod with the function of increasing the climbing distance comprises a connection insulation rod body, a first connector and a second connector, wherein the first connector is in threaded connection with one end of the connection insulation rod body, the other end of the connection insulation rod body is a sleeve connector, a threaded connector is arranged at the bottom end of the sleeve connector, and an adjusting umbrella skirt sleeve is arranged outside the sleeve connector;
the second connector comprises an inner end connector and an outer end connector, a threaded adjusting connector which is mutually matched and connected with a threaded interface is arranged at one end of the inner end connector, a connecting sleeve is arranged at the other end of the inner end connector, a spline sleeve section is arranged at the bottom end part in the connecting sleeve, the outer end connector is of a rod-shaped structure, a spline shaft section matched with the spline sleeve section is arranged at one end of the outer end connector, a linkage piece connector is arranged at the other end of the outer end connector, the outer end connector is inserted in the spline sleeve section through the spline shaft section, a first spring is arranged between the inner side of the spline shaft section and the bottom of the connecting sleeve, a second spring is sleeved on the outer end connector at the outer side of the spline shaft section, a threaded sealing cap is arranged at the end opening of the connecting sleeve to seal the second spring in the connecting sleeve, a movable adjusting disc is sleeved at the outer end part of the outer end connector, a plurality of movable adjusting rods are arranged on the movable adjusting disc in a surrounding mode, adjusting holes are correspondingly arranged on the sleeve connectors corresponding to the movable adjusting umbrella skirt sleeves, the movable adjusting rods pass through the adjusting rods, triangular supporting rod devices are symmetrically arranged at the outer ends of the movable adjusting rods, and the sleeve connector ports are provided with port sealing caps.
According to the circuit breaker insulating pull rod with the function of increasing the climbing distance, the second connector is designed to be of the telescopic structure, the whole insulating pull rod is of the elastic tensioning structure, and the contact rigidly connected with the insulating pull rod at the moment of switching on and off avoids the occurrence of larger-amplitude bouncing and less influences on the switching-on and switching-off performance of the circuit breaker; the second connector is designed into a telescopic structure, the outer end connector on the second connector stretches relative to the inner end connector in the telescopic process, the movable adjusting disc on the outer end connector synchronously moves, and a plurality of movable adjusting rods are arranged on the movable adjusting disc in a surrounding manner and synchronously pull the triangular support device on the reverse side of the inner end connector to open, so that the adjustable umbrella skirt sleeve is instantly opened to increase the climbing distance; the problem of insulating pull rod at the explosion chamber disconnection and closure instant of circuit breaker, insulating pull rod insulation failure easily leads to the incident emergence is solved.
Further, the triangular support device comprises an upper support rod, a lower support rod and a sliding connection block, wherein the bottom end of the upper support rod is hinged to the sliding connection block, the upper end of the lower support rod is hinged to the sliding connection block, and the sliding connection block is slidably connected to the outer end part of the movable adjusting rod.
Further, an arc-shaped supporting block is arranged at the upper end of the upper supporting rod.
Further, a third spring is sleeved on the second connector at the inner side of the movable adjusting disc, and a fourth spring is sleeved on the second connector at the outer side of the movable adjusting disc.
Further, the movable adjusting disc is in threaded connection with the outer end connector.
Further, the square rod section is arranged on the outer end connector corresponding to the installation of the port sealing cap, the square hole is matched with the square rod section by the port sealing cap, and the outer ring surface of the port sealing cap is connected to the port surface of the sleeve connector through bolts.
Further, the lower end of the movable adjusting rod is movably arranged on the movable adjusting disc.
Further, a plurality of umbrella skirts are arranged on the ring surface of the connecting insulating rod body.
The invention is realized by the following another technical scheme:
an insulating pull rod of a circuit breaker with a function of increasing the creepage distance, comprising the following steps:
when making the arc extinguisher closed, second connector, connection insulator spindle and first connector pass through propulsion power conduction in proper order and make the arc extinguisher closed, at the closed in-process of arc extinguisher, outer end connector moves to inner end connector direction, and the removal adjustment disk on the outer end connector moves to inner end connector direction in step, encircles and is equipped with a plurality of removal regulation poles and also promotes the triangle brace support device of the reverse one side of inner end connector to open on removing the adjustment disk in step to make and adjust umbrella skirt cover open in the twinkling of an eye increase and climb the distance.
Further, the method further comprises the steps of:
when making the arc extinguisher disconnection, second connector, connection insulator spindle body and first connector pass through taut power conduction in proper order and make the arc extinguisher disconnection, at the arc extinguisher disconnection in-process, outer end connector is for the interior connector opposite direction removal, and the removal regulating disk on the outer end connector is synchronous to interior connector opposite direction removal, encircles and is equipped with a plurality of removal regulating rods and also pulls the triangle brace support device of the reverse one side of interior connector in step and opens on the removal regulating disk to make and adjust umbrella skirt cover open in the twinkling of an eye and increase and climb the distance.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the circuit breaker insulating pull rod with the function of increasing the climbing distance, the second connector is designed to be of the telescopic structure, the whole insulating pull rod is of the elastic tensioning structure, and the contact rigidly connected with the insulating pull rod at the moment of switching on and off avoids the occurrence of larger-amplitude bouncing and less influences on the switching-on and switching-off performance of the circuit breaker;
2. according to the circuit breaker insulating pull rod with the function of increasing the climbing distance, the second connector is designed to be of a telescopic structure, the outer end connector on the second connector stretches relative to the inner end connector in the telescopic process, the movable adjusting disc on the outer end connector moves synchronously, and the movable adjusting disc is surrounded by a plurality of movable adjusting rods to synchronously pull the triangular support rod frame device on the reverse side of the inner end connector to open, so that the adjustable umbrella skirt sleeve opens instantly to increase the climbing distance; the problem that the insulation pull rod is easy to fail in insulation at the moment of opening and closing the arc extinguishing chamber of the circuit breaker, so that safety accidents occur is solved;
3. according to the circuit breaker insulating pull rod with the function of increasing the climbing distance, the square rod section is arranged on the corresponding outer end connecting head of the port sealing cap piece, the square hole is formed by the port sealing cap piece and the square rod section in a matched mode, and the outer ring surface of the port sealing cap piece is connected to the port surface of the sleeve joint through the bolt, so that the second joint can only do telescopic motion in the sleeve joint and cannot do rotary motion, the insulating pull rod cannot change in length in the use process, and effective control of an arc extinguishing chamber is affected;
4. according to the circuit breaker insulating pull rod with the function of increasing the climbing distance, the second connector is connected with the circuit breaker insulating pull rod through the threaded adjusting connector which is mutually matched and connected through the threaded interface, so that the installation length of the second connector can be adjusted, the whole length of the circuit breaker insulating pull rod can be conveniently adjusted according to different installation conditions, in addition, the second connector is connected with the connecting insulating rod body through two positions, one of the second connector is connected with the threaded adjusting connector through the threaded interface, in addition, the limiting connection between the movable adjusting disc and the port sealing cap piece is realized, the tensile strength of the structural relation that the traditional circuit breaker insulating pull rod can only be connected at one position is greatly improved, and the use quality of the circuit breaker insulating pull rod is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention. In the drawings:
fig. 1 is a schematic structural view of an insulation pull rod of a circuit breaker with a function of increasing a creepage distance;
fig. 2 is a schematic structural view of a second connector according to the present invention;
FIG. 3 is a schematic view of the inner end connector of the present invention;
FIG. 4 is a schematic view of the structure of the outer connector of the present invention;
FIG. 5 is a schematic view of the configuration of the three-gusset bar frame assembly of the present invention in cooperation with an adjustment shed cover;
in the drawings, the reference numerals and corresponding part names:
1-connecting an insulating rod body, 2-a first connector and 3-a second connector;
4-sleeve joints, 5-threaded joints and 6-adjusting umbrella skirt sleeves;
7-inner end connectors, 8-outer end connectors and 9-thread adjusting connectors;
10-connecting sleeve, 11-spline sleeve section, 12-spline shaft section;
13-linkage joint, 14-first spring, 15-second spring;
16-screw cap, 17-moving adjusting disk, 18-moving adjusting rod;
19-adjusting holes, 20-triangular support rod frame devices and 21-port sealing caps;
22-upper stay bars, 23-lower stay bars and 24-sliding connection blocks;
25-arc-shaped supporting blocks, 26-third springs and 27-fourth springs;
28-square pole section, 29-bolt, 30-umbrella skirt.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
Example 1
As shown in fig. 1-5, the insulating pull rod with the function of increasing the climbing distance comprises a connecting insulating rod body 1, a first connector 2 and a second connector 3, wherein the connecting insulating rod body 1 is made of a PA66 reinforced nylon material and a glass fiber material is added into the PA66 reinforced nylon material, so that the toughness of the insulating pull rod is increased, the mechanical strength of the insulating pull rod is enhanced, the phenomenon of uneven electric field is effectively solved, the service life of the insulating pull rod is prolonged, and meanwhile, the weight of the insulating pull rod is reduced. The first connector 2 is connected with one end of the connecting insulating rod body 1 in a threaded manner, telescopic adjustment can be achieved between the first connector 2 and the connecting insulating rod body 1 during installation, the other end of the connecting insulating rod body 1 is a sleeve connector 4, a threaded connector 5 is arranged at the bottom end of the sleeve connector 4, and an adjusting umbrella skirt sleeve 6 is arranged outside the sleeve connector 4. The sleeve joint 4 can play an insulating protection role on the second connector 3. The adjusting umbrella skirt sleeve and the umbrella skirt are both made of silicon rubber.
The second connector 3 comprises an inner end connector 7 and an outer end connector 8, a threaded adjusting connector 9 which is mutually matched and connected with a threaded connector 5 is arranged at one end of the inner end connector 7, a connecting sleeve 10 is arranged at the other end of the inner end connector 7, a spline sleeve section 11 is arranged at the bottom end part in the connecting sleeve 10, the outer end connector 8 is of a rod-shaped structure, a spline shaft section 12 which is matched with the spline sleeve section 11 is arranged at one end of the outer end connector 8, a linkage part connector 13 is arranged at the other end of the outer end connector 8, the outer end connector 8 is inserted in the spline sleeve section 11 through the spline shaft section 12, a first spring 14 is arranged between the inner side of the spline shaft section 12 and the bottom of the connecting sleeve 10, a second spring 15 is sleeved on the outer end connector 8 at the outer side of the spline shaft section 12, a threaded sealing cap 16 is arranged at the port of the connecting sleeve 10, a plurality of moving adjusting rods 18 are arranged on the outer end part sleeve of the outer end connector 8 in a sleeved mode, a plurality of moving adjusting rods 18 are arranged on the moving adjusting rods 17 in a surrounding mode, adjusting rods 19 are arranged on the sleeve joints 4 corresponding to the moving adjusting umbrella skirt sleeves 6, a moving adjusting rod 19 corresponding to the moving adjusting rods 18 are arranged on the moving adjusting rods 19, a triangular joint 18 is arranged on a supporting rod end connector 20, and a supporting rod end opening 20 is arranged on the moving end of the supporting rod 20, and a symmetrical joint device is arranged at the end opening 20.
According to the circuit breaker insulating pull rod with the function of increasing the climbing distance, the second connector is designed to be of the telescopic structure, the whole insulating pull rod is of the elastic tensioning structure, and the contact rigidly connected with the insulating pull rod at the moment of switching on and off avoids the occurrence of larger-amplitude bouncing and less influences on the switching-on and switching-off performance of the circuit breaker; the second connector is designed into a telescopic structure, the outer end connector on the second connector stretches relative to the inner end connector in the telescopic process, the movable adjusting disc on the outer end connector synchronously moves, and a plurality of movable adjusting rods are arranged on the movable adjusting disc in a surrounding manner and synchronously pull the triangular support device on the reverse side of the inner end connector to open, so that the adjustable umbrella skirt sleeve is instantly opened to increase the climbing distance; the problem that the insulation pull rod is easy to fail in insulation at the moment of opening and closing the arc extinguishing chamber of the circuit breaker, so that safety accidents occur is solved;
the triangular support device 20 comprises an upper support rod 22, a lower support rod 23 and a sliding connection block 24, wherein the bottom end of the upper support rod 22 is hinged to the sliding connection block 24, the upper end of the lower support rod 23 is hinged to the sliding connection block 24, and the sliding connection block 24 is slidably connected to the outer end of the movable adjusting rod 18. The upper end of the upper stay bar 22 is provided with an arc-shaped stay block 25.
The arc-shaped supporting blocks 25 on the plurality of upper supporting rods 22 can be enclosed into a circular ring structure, so that the umbrella skirt cover 6 can be supported and regulated conveniently to be unfolded, and the electric climbing distance is increased. When the movement adjusting lever 18 moves to one side, the side tripod rest 20 expands (the angle between the upper stay 22 and the lower stay 23 increases) to support and adjust the umbrella cover 6, and the other side tripod rest 20 of the movement adjusting lever 18 contracts (the angle between the upper stay 22 and the lower stay 23 decreases) without pushing force. The slide connection block 24 can slide up and down on the outer end of the moving adjustment lever 18, and since the lower stay 23 is gradually vertical when the tripod apparatus 20 is spread, the slide connection block 24 is forced to move upward, otherwise the tripod apparatus 20 cannot be spread.
The second connector 3 on the inner side of the movable adjusting disc 17 is sleeved with a third spring 26, and the second connector 3 on the outer side of the movable adjusting disc 17 is sleeved with a fourth spring 27. The first spring 14, the second spring 15, the third spring 26 and the fourth spring 27 are all used for realizing telescopic reset of the second connector 3 in a matched mode, and the rigidity strength of the insulating rod is reduced.
The movable adjusting disc 17 is in threaded connection with the outer end connector 8. The movable adjusting disk 17 is designed into an adjusting structure, so that the movable adjusting disk 17 is convenient to be installed and connected in a matching way, and the position of the movable adjusting disk 17 is required to be correspondingly installed with the adjustable umbrella skirt 6, and the third spring 26 and the fourth spring 27 are required to be elastically limited and blocked.
The square rod section 28 is arranged on the corresponding outer end connector 8 of the port sealing cap 21, square holes are formed in the cooperation of the port sealing cap 21 and the square rod section 28, and the outer ring surface of the port sealing cap 21 is connected to the port surface of the sleeve connector 4 through bolts 29. According to the circuit breaker insulating pull rod with the function of increasing the climbing distance, the square rod section 28 is arranged on the corresponding outer end connector 8 of the port sealing cap piece 21, the square hole is formed by the port sealing cap piece 21 and the square rod section 28 in a matched mode, and the outer annular surface of the port sealing cap piece 21 is connected to the port surface of the sleeve joint 4 through the bolt 29, so that the second connector can only stretch and retract in the sleeve joint and cannot do rotary motion, and the insulating pull rod cannot change in length in the use process, and therefore effective control of an arc extinguishing chamber is affected.
The lower end of the movable adjusting rod 18 is movably arranged on the movable adjusting disc 17. A plurality of umbrella skirts 30 are arranged on the ring surface of the connecting insulating rod body 1. The electrical creepage distance of the insulating rod in the static process can be increased by the plurality of umbrella skirts 30.
According to the creepage distance increasing method of the insulating pull rod of the circuit breaker with the creepage distance increasing function, when the arc extinguisher is closed, the second connector 3, the connecting insulating rod body 1 and the first connector 2 sequentially conduct propulsion power to enable the arc extinguisher to be closed, in the closing process of the arc extinguisher, the outer end connector 8 moves towards the inner end connector 7, the movable adjusting disc 17 on the outer end connector 8 synchronously moves towards the inner end connector 7, the movable adjusting disc 17 is circumferentially provided with a plurality of movable adjusting rods 18 to synchronously push the triangular support rod frame device 20 on the reverse side of the inner end connector 7 to open, and therefore the adjustable umbrella skirt sleeve 6 opens instantaneously to increase the creepage distance. When the arc extinguisher is disconnected, the second connector 3, the connecting insulating rod body 1 and the first connector 2 are sequentially connected through tensioning power conduction to disconnect the arc extinguisher, in the disconnection process of the arc extinguisher, the outer end connector 8 moves in the opposite direction relative to the inner end connector 7, the movable adjusting disc 17 on the outer end connector 8 synchronously moves in the opposite direction relative to the inner end connector 7, and the movable adjusting disc 17 is surrounded by a plurality of movable adjusting rods 18 to synchronously pull the triangular support frame device 20 on the opposite side of the inner end connector 7 to open, so that the adjustable umbrella skirt sleeve 6 is opened instantly to increase the climbing distance.
Example 2
As shown in fig. 1 to 5, the invention relates to a method for increasing the creepage distance of an insulation pull rod of a circuit breaker, which is characterized by comprising the following steps:
when making the arc extinguisher closed, second connector 3, connect insulating body of rod 1 and first connector 2 pass through propulsion power conduction in proper order and make the arc extinguisher closed, at the closed in-process of arc extinguisher, outer end connector 8 moves to inner end connector 7 direction, and the removal adjustment disk 17 on the outer end connector 8 moves to inner end connector 7 direction in step, encircles and is equipped with a plurality of removal regulation poles 18 on removal adjustment disk 17 and also promotes the triangle brace frame device 20 of the reverse one side of inner end connector 7 in step and opens to make and adjust umbrella skirt cover 6 open in the twinkling of an eye and increase the creepage distance. As shown in fig. 5, the broken line indicates a state in which the adjustment shed cover 6 is not supported and unfolded, and the solid line indicates a state in which the adjustment shed cover 6 is momentarily opened to increase the climbing distance by the triangular strut device 20 being opened.
The method also comprises the steps of:
when the arc extinguisher is disconnected, the second connector 3, the connecting insulating rod body 1 and the first connector 2 are sequentially connected through tensioning power conduction to disconnect the arc extinguisher, in the disconnection process of the arc extinguisher, the outer end connector 8 moves in the opposite direction relative to the inner end connector 7, the movable adjusting disc 17 on the outer end connector 8 synchronously moves in the opposite direction relative to the inner end connector 7, and the movable adjusting disc 17 is surrounded by a plurality of movable adjusting rods 18 to synchronously pull the triangular support frame device 20 on the opposite side of the inner end connector 7 to open, so that the adjustable umbrella skirt sleeve 6 is opened instantly to increase the climbing distance.
According to the circuit breaker insulation pull rod climbing distance increasing method with the climbing distance increasing function, the second connector is designed to be of a telescopic structure, the outer end connector on the second connector stretches and contracts relative to the inner end connector, the movable adjusting disc on the outer end connector moves synchronously, a plurality of movable adjusting rods are arranged on the movable adjusting disc in a surrounding mode, and the triangular support rod frame device on the reverse side of the inner end connector is pulled synchronously to open, so that the adjustable umbrella skirt sleeve opens instantly to increase the climbing distance; the problem of insulating pull rod at the explosion chamber disconnection and closure instant of circuit breaker, insulating pull rod insulation failure easily leads to the incident emergence is solved.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. The utility model provides an insulating pull rod of circuit breaker with increase is climbed apart from function, includes connection insulation body of rod (1), first connector (2) and second connector (3), its characterized in that: the first connecting head (2) is in threaded connection with one end of the connecting insulating rod body (1), the other end of the connecting insulating rod body (1) is provided with a sleeve joint (4), a threaded joint (5) is arranged at the bottom end of the sleeve joint (4), and an adjusting umbrella skirt sleeve (6) is arranged outside the sleeve joint (4);
the second connector (3) comprises an inner end connector (7) and an outer end connector (8), a threaded adjusting connector (9) which is mutually matched and connected with a threaded interface (5) is arranged at one end of the inner end connector (7), a connecting sleeve (10) is arranged at the other end of the inner end connector (7), a spline sleeve section (11) is arranged at the bottom end part in the connecting sleeve (10), the outer end connector (8) is of a rod-shaped structure, a spline shaft section (12) matched with the spline sleeve section (11) is arranged at one end of the outer end connector (8), a linkage part connector (13) is arranged at the other end of the outer end connector (8), the outer end connector (8) is inserted in the spline sleeve section (11) through the spline shaft section (12), a first spring (14) is arranged between the inner side of the spline shaft section (12) and the bottom of the connecting sleeve (10), a second spring (15) is sleeved on the outer end connector (8) at the outer side of the spline shaft section (12), a threaded sealing cap (16) is arranged at the port of the connecting sleeve (10), a plurality of movable adjusting rods (17) are arranged at the outer ends of the connecting sleeve (8), an adjusting hole (19) is formed in the sleeve joint (4) corresponding to the adjusting umbrella skirt sleeve (6) and corresponds to the movable adjusting rod (18), the movable adjusting rod (18) penetrates through the adjusting hole (19), three-angle support rod frame devices (20) are symmetrically arranged at the outer end of the movable adjusting rod (18), and a port sealing cap (21) is arranged at a port of the sleeve joint (4);
the triangular support device (20) comprises an upper support rod (22), a lower support rod (23) and a sliding connection block (24), wherein the bottom end of the upper support rod (22) is hinged to the sliding connection block (24), the upper end of the lower support rod (23) is hinged to the sliding connection block (24), and the sliding connection block (24) is connected to the outer end part of the movable adjusting rod (18) in a sliding manner; the second connector (3) on the inner side of the movable adjusting disc (17) is sleeved with a third spring (26), the second connector (3) on the outer side of the movable adjusting disc (17) is sleeved with a fourth spring (27), and the movable adjusting disc (17) is in threaded connection with the outer end connector (8).
2. The circuit breaker insulating pull rod with the function of increasing the creepage distance according to claim 1, wherein: the upper end of the upper stay bar (22) is provided with an arc-shaped stay block (25).
3. The circuit breaker insulating pull rod with the function of increasing the creepage distance according to claim 1, wherein: the lower end of the movable adjusting rod (18) is movably arranged on the movable adjusting disc (17).
4. The circuit breaker insulating pull rod with the function of increasing the creepage distance according to claim 1, wherein: the ring surface of the connecting insulating rod body (1) is provided with a plurality of umbrella skirts (30).
5. A method for increasing the creepage distance of an insulating pull rod of a circuit breaker with a creepage distance increasing function, which is characterized by comprising the following steps based on the insulating pull rod of the circuit breaker with the creepage distance increasing function as set forth in claim 1:
when making the arc extinguisher closed, second connector (3), connect insulating body of rod (1) and first connector (2) pass through propulsion power conduction in proper order and make the arc extinguisher closed, at the closed in-process of arc extinguisher, outer end connector (8) are to interior end connector (7) direction removal, remove regulating disk (17) on outer end connector (8) and remove to interior end connector (7) direction in step, encircle being equipped with a plurality of removal regulating rods (18) on removing regulating disk (17) and also promote triangle brace frame device (20) of the reverse one side of inner end connector (7) in step and open, thereby make regulation umbrella skirt cover (6) open in the twinkling of an eye and increase the creepage distance.
6. The method for increasing the creepage distance of an insulating pull rod of a circuit breaker with the function of increasing the creepage distance according to claim 5, further comprising the steps of:
when making the arc extinguisher disconnection, second connector (3), connect insulating body of rod (1) and first connector (2) loop through taut power conduction and make the arc extinguisher disconnection, at the arc extinguisher disconnection in-process, outer end connector (8) are for inner connector (7) opposite direction removal, remove adjusting disk (17) on outer end connector (8) synchronous to inner connector (7) opposite direction removal, encircle and be equipped with a plurality of removal adjusting rods (18) on removing adjusting disk (17) and also synchronous pulling inner connector (7) reverse one side's triangle brace strut device (20) open, thereby make regulation umbrella skirt cover (6) open in the twinkling of an eye and increase the creepage distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810842896.6A CN108648968B (en) | 2018-07-27 | 2018-07-27 | Circuit breaker insulation pull rod with function of increasing creepage distance and creepage distance increasing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810842896.6A CN108648968B (en) | 2018-07-27 | 2018-07-27 | Circuit breaker insulation pull rod with function of increasing creepage distance and creepage distance increasing method |
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| Publication Number | Publication Date |
|---|---|
| CN108648968A CN108648968A (en) | 2018-10-12 |
| CN108648968B true CN108648968B (en) | 2023-05-23 |
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| CN207183160U (en) * | 2017-08-30 | 2018-04-03 | 沈阳晨源电气有限公司 | A kind of circuit breaker tie rod for being easy to adjust overrun distance |
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| JP2010277848A (en) * | 2009-05-28 | 2010-12-09 | Mitsubishi Electric Corp | Switching device |
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| CN107147032A (en) * | 2017-06-26 | 2017-09-08 | 河北电力装备有限公司 | A kind of linkage insulating bar group for solid insulation ring main unit |
| CN107622907A (en) * | 2017-07-28 | 2018-01-23 | 江苏省如高高压电器有限公司 | A kind of novel breaker |
| CN207183160U (en) * | 2017-08-30 | 2018-04-03 | 沈阳晨源电气有限公司 | A kind of circuit breaker tie rod for being easy to adjust overrun distance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108648968A (en) | 2018-10-12 |
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