CN101916680A - Mechanical interlock mechanism for ring main unit - Google Patents

Mechanical interlock mechanism for ring main unit Download PDF

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Publication number
CN101916680A
CN101916680A CN 201010258609 CN201010258609A CN101916680A CN 101916680 A CN101916680 A CN 101916680A CN 201010258609 CN201010258609 CN 201010258609 CN 201010258609 A CN201010258609 A CN 201010258609A CN 101916680 A CN101916680 A CN 101916680A
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CN
China
Prior art keywords
plate
hole
earthed switch
location
panel
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Granted
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CN 201010258609
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Chinese (zh)
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CN101916680B (en
Inventor
刘军
查赛彬
王正山
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BOER (WUXI) POWER SYSTEM Co Ltd
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BOER (WUXI) POWER SYSTEM Co Ltd
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Priority to CN201010258609.0A priority Critical patent/CN101916680B/en
Publication of CN101916680A publication Critical patent/CN101916680A/en
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Publication of CN101916680B publication Critical patent/CN101916680B/en
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Abstract

The invention relates to a mechanical interlock mechanism for a ring main unit, which comprises a panel. One end of the panel is provided with an earthed switch operation hole and a breaker operation hole; a three-hole control panel is arranged on the panel and is provided with a breaker operation selection hole, a control handle mounting hole and an earthed switch operation selection hole, the earthed switch operation selection hole and the breaker operation selection hole which are arranged on the three-hole panel are respectively communicated with the earthed switch operation hole and the breaker operation hole, and a control handle is arranged in the control handle mounting hole; a block plate is arranged on the panel, is provided with an operation positioning hole and connecting shafts distributed vertically and is connected with the control handle; and an earthed switch operation shaft and a breaker operation shaft are respectively arranged in the earthed switch operation selection hole and the breaker operation selection hole and both can rotate relative to the three-hole panel. The invention has the advantages of reasonable structure, convenient use and reliability and safety.

Description

Mechanical interlock mechanism for ring main unit
Technical field
The present invention relates to a kind of mechanical chain mechanism, especially a kind of mechanical interlock mechanism for ring main unit specifically is used for the chain operating mechanism of ring main unit, belongs to the technical field of ring main unit control.
Background technology
Ring main unit is as the ring network power supply aspect, ring main unit relatively simple for structure, and price is also cheap relatively, is with distribution and the electrical control the most widely of route protection aspect; It is long that described ring main unit removes electric life, the strong grade of the power of cut-offfing has outside the common advantage with vacuum load switch, its outstanding advantage is to realize that easily three working positions (connection, disconnection and ground connection) and little electric current (inductance, electric capacity) cut-off, and it is strong to have anti-harsh and unforgiving environments condition ability.The ring main unit optimum is applied at the town and country medium voltage distribution network; Ring main unit more needs reliability in operation, avoid producing because the fault of the power supply unit that misoperation causes.At present, the operation of ring main unit does not possess interlock type operation, and the processing ease of ring main unit is caused misoperation, can not ensure the safe in utilization of ring main unit.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of mechanical interlock mechanism for ring main unit is provided, its compactness rational in infrastructure, easy to use, safe and reliable.
According to technical scheme provided by the invention, described mechanical interlock mechanism for ring main unit comprises panel, and an end of described panel is provided with earthed switch handle hole and breaker operator hole; The corresponding end that earthed switch handle hole and breaker operator hole are set is provided with three hole control boards on the described panel, and described three hole control boards are provided with breaker operator selecting hole, joystick installing hole and earthed switch operation hole; Three hole control boards and panel fix, and the earthed switch operation hole on the three hole control boards and breaker operator selecting hole be connected with earthed switch handle hole and breaker operator hole respectively, are provided with joystick in the joystick installing hole; Panel is provided with closure plate corresponding to the opposite side that three hole control boards are set, described closure plate is provided with the connecting axle of operation location hole and vertical distribution, described connecting axle penetrates in the joystick installing hole corresponding to the other end that links to each other with closure plate, and fix with joystick, joystick and closure plate all can rotate relative to panel; Described operation location hole is corresponding with earthed switch handle hole and breaker operator hole respectively; Be respectively equipped with earthed switch operating axis and breaker operator axle in earthed switch operation hole and the breaker operator selecting hole; One end of described earthed switch operating axis stretches in earthed switch operation hole and the earthed switch handle hole, and can rotate relative to three hole control boards; One end of breaker operator axle stretches in breaker operator hole and the breaker operator selecting hole, and can rotate relative to three hole control boards.
Be provided with earthed switch position display hole corresponding to the side that the earthed switch handle hole is set on the described panel, a side in described earthed switch position display hole is provided with alignment pin; Be provided with earthed switch position swinging plate in the earthed switch position display hole, earthed switch position swinging plate is provided with installation shaft corresponding to the other end that stretches into earthed switch position display hole, and earthed switch position swinging plate is hinged by installation shaft and alignment pin; Earthed switch position swinging plate can move in earthed switch position display hole; Installation shaft is provided with fixedly connected earthed switch shifting shaft corresponding to the other end that links to each other with alignment pin, described earthed switch shifting shaft is provided with cam corresponding to the other end that links to each other with installation shaft, the both sides of described cam are provided with first location-plate and second location-plate of symmetrical distribution, and cam can rotate relative to first location-plate and second location-plate; One end of second location-plate and first location-plate is provided with the connecting plate that is hinged, and the other end is provided with position interlock plate; Described position interlock plate is provided with location notch corresponding to the end that links to each other with first location-plate and second location-plate, and the end of first location-plate and second location-plate is embedded in the location notch; Position interlock plate and earthed switch operating axis fix corresponding to the end of contiguous closure plate.
Be provided with first limit shaft of symmetrical distribution on the described position interlock plate corresponding to the end that links to each other with first location-plate and second location-plate; The earthed switch shifting shaft is provided with the rotary spacing plate corresponding to the end of contiguous first limit shaft, and described rotary spacing plate is positioned between first limit shaft corresponding to the other end that links to each other with the earthed switch shifting shaft, and with the corresponding cooperation of first limit shaft.
Be equipped with the first spring installation shaft on described first location-plate and second location-plate, described spring installation shaft is provided with first regulating spring.Described closure plate is provided with display panel corresponding to a side of contiguous panel, and described display panel and closure plate fix.
Described display panel is provided with the ratchet that is hinged, and described ratchet is meshed with ratchet on the breaker operator axle; Described ratchet and ratchet all are positioned at panel corresponding to the side that three hole control boards are set.Described ratchet is provided with second regulating spring, and an end of described second regulating spring is installed on the ratchet, and the other end is fixed on the panel by the second spring installation shaft.
Described panel is provided with adjustable plate corresponding to the side that the breaker operator hole is set; Panel is provided with the 3rd location-plate corresponding to the top in breaker operator hole, and panel is provided with the 4th location-plate corresponding to a side of contiguous earthed switch handle hole, links to each other by back-moving spring between described the 4th location-plate and the 3rd location-plate; One end and the panel of adjustable plate fix, and the other end links to each other with the 3rd location-plate.
Described panel is provided with second limit shaft, and described second limit shaft is positioned at the end edge of closure plate, and corresponding cooperation with closure plate.The two ends of described connecting plate are hinged with first location-plate and second location-plate respectively by the connecting plate jointed shaft.
Advantage of the present invention: setting operation location hole on closure plate, joystick drive the closure plate rotation, select earthed switch handle hole and breaker operator hole by controlling location hole, thereby can operate accordingly ground connection switching manipulation axle and breaker operator axle; Avoided misoperation to ground connection switching manipulation axle or breaker operator axle.The earthed switch swinging plate moves in earthed switch position display hole, and can indicate the state of earthed switch; When the earthed switch swinging plate moves, can adjust being connected of first location-plate, second location-plate and position interlock plate, make the earthed switch operating axis can only be along the direction operation of setting, performance accuracy height.The breaker operator axle is provided with ratchet, and ratchet is meshed with ratchet, and second regulating spring is set on the ratchet, can guarantee that the breaker operator axle can only rotate along a direction, avoids breaking the vacuum tube in the circuit breaker; Compact conformation, installation and easy to use, safe and reliable.
Description of drawings
Fig. 1 is an explosive view of the present invention.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in Figure 1: the utility model comprises joystick 1, three hole control boards 2, panel 3, earthed switch position display hole 4, earthed switch swinging plate 5, alignment pin 6, earthed switch shifting shaft 7, rotary spacing plate 8, cam 9, first location-plate 10, first regulating spring 11, second location-plate 12, position interlock plate 13, the 3rd location-plate 14, display panel 15, closure plate 16, back-moving spring 17, ratchet 18, earthed switch operating axis 19, ratchet 20, breaker operator axle 21, second regulating spring 22, connecting plate 23, connecting plate jointed shaft 24, the first spring installation shaft 25, first limit shaft 26, connecting hole 27, location notch 28, the second spring installation shaft 29, second limit shaft 30, operation location hole 31, breaker operator hole 32, breaker operator selecting hole 33, joystick installing hole 34, earthed switch operation hole 35, earthed switch handle hole 36, the 4th location-plate 37, installation shaft 38, shifting shaft installing hole 39 and adjustable plate 40.
As shown in Figure 1: an end of described panel 3 is provided with earthed switch handle hole 36 and breaker operator hole 32, side corresponding to contiguous earthed switch handle hole 36 on the panel 3 is provided with earthed switch position display hole 4, described earthed switch position display hole 4 is provided with alignment pin 6 corresponding to a side of contiguous earthed switch handle hole 36, and described alignment pin 6 fixes with panel 3.Panel 3 is provided with three hole control boards 2 corresponding to the opposite side that alignment pin 6 is set, and is respectively equipped with breaker operator selecting hole 33, joystick installing hole 34 and earthed switch operation hole 35 on the described three hole control boards 2; Described joystick installing hole 34 is positioned at the center of three hole control boards 2, and breaker operator selecting hole 33 and earthed switch operation hole 35 lay respectively at the both sides of joystick installing hole 34.Three hole control boards 2 are fixed on the panel 3, and the breaker operator selecting hole 33 on the three hole control boards 2 is connected with breaker operator hole 32 on the panel 3, and earthed switch operation hole 35 is connected with earthed switch handle hole 36 on the panel 3.Be provided with joystick 1 in the joystick installing hole 34, described joystick 1 can rotate relative to panel 3 and three hole control boards 2.Panel 3 is provided with closure plate 16 corresponding to the opposite side that three hole control boards 2 are set, described closure plate 16 be provided with operation location hole 31 and with the connecting axle of closure plate 16 perpendicular distributions, after described connecting axle passes panel 3 corresponding to the other end that links to each other with closure plate 16, stretch in the joystick installing hole 34, and be fixedly connected with joystick 1 in the joystick installing hole 34; Joystick 1 can drive closure plate 16 and rotate relative to panel 3.Operation location hole 31 on the closure plate 16 is corresponding with breaker operator hole 32 and earthed switch handle hole 36, when joystick 1 drives closure plate 16 rotations, operation location hole 31 on the closure plate 16 can be connected with breaker operator hole 32 or earthed switch handle hole 36, thereby opens breaker operator hole 32 or earthed switch handle hole 36.Closure plate 16 also is provided with display panel 15 corresponding to a side that links to each other with joystick 1, scribbles the operation Show Color on the described display panel 15, and display panel 15 fixes with closure plate 16; When closure plate 16 was followed joystick 1 rotation, display panel 15 can show corresponding operation by color, be convenient to observe and operate.
Be provided with breaker operator axle 21 in breaker operator selecting hole 33 and the breaker operator hole 32, one end of described breaker operator axle 21 stretches in breaker operator selecting hole 33 and the breaker operator hole 32, and the contiguous closure plate 16 in the end of breaker operator axle 21, breaker operator axle 21 can rotate in breaker operator selecting hole 33 and breaker operator hole 32.Be provided with earthed switch operating axis 19 in earthed switch operation hole 35 and the earthed switch handle hole 36, an end of described earthed switch operating axis 19 stretches in earthed switch selecting hole 25 and the earthed switch handle hole 36; Earthed switch operating axis 19 can rotate in earthed switch operation hole 35 and earthed switch handle hole 36.Earthed switch operating axis 19 and breaker operator axle 21 all are provided with corresponding operating grip installing hole corresponding to the end of contiguous closure plate 16, corresponding operating grip can stretch in the operating grip installing hole, earthed switch operating axis 19 and breaker operator axle 21 are rotated, operate accordingly.
Earthed switch operating axis 19 is provided with position interlock plate 13 corresponding to the end of contiguous closure plate 16, the center of described position interlock plate 13 convexes with the interlock piece, be provided with the connecting hole 27 that distributes vertically in the described interlock piece, earthed switch operating axis 19 is embedded in the connecting hole 27 corresponding to the end of contiguous closure plate 16, and fixes with position interlock plate 13.Described connecting hole 27 is connected with the operating grip installing hole of earthed switch operating axis 19 ends, and interlock plate 13 in position is positioned at 3 of closure plate 16 and panels.Position interlock plate 13 is provided with the location notch 28 of symmetrical distribution corresponding to the end of positioned adjacent pin 6; Position interlock plate 13 also is provided with first location-plate 10 and second location-plate 12 of symmetrical distribution corresponding to the end that location notch 28 is set, one end of first location-plate 10 and second location-plate 12 is embedded in the location notch 28, and first location-plate 10 and second location-plate 12 are corresponding to the end and location notch 28 corresponding cooperations that are embedded in the location notch 28.First location-plate 10 and second location-plate 12 are provided with connecting plate 23 corresponding to the other end that links to each other with position interlock plate 13, and described connecting plate 23 is hinged with first location-plate 10 and second location-plate 12 respectively by connecting plate jointed shaft 24.
First location-plate 10 and 12 of second location-plates are provided with cam 9, and described cam 9 can rotate relative to first location-plate 10 and second location-plate 12.Cam 9 is provided with earthed switch shifting shaft 7, and an end and the cam 9 of described earthed switch shifting shaft 7 fix, and the other end is embedded in the shifting shaft installing hole 39 of installation shaft 38; Described earthed switch shifting shaft 7 fixes with installation shaft 38.Installation shaft 38 is provided with earthed switch swinging plate 5 corresponding to the other end that earthed switch shifting shaft 7 is set; Installation shaft 38 is enclosed within on the alignment pin 6 corresponding to the other end that earthed switch shifting shaft 7 is set, and can rotate by relative positioning pin 6; Earthed switch swinging plate 5 is hinged by installation shaft 38 and alignment pin 6.Described earthed switch swinging plate 5 stretches in the earthed switch position display hole 4 corresponding to the other end that links to each other with installation shaft 38, and can move in earthed switch position display hole 4.Described earthed switch position display hole 4 has the show label of earthed switch combined floodgate, earthed switch separating brake and earthed switch ground connection, earthed switch swinging plate 5 is by moving in earthed switch position display plate 4, indicate corresponding state, and can operate accordingly by earthed switch operating axis 19.Earthed switch shifting shaft 7 is provided with rotary spacing plate 8 corresponding to the end with cam 9, and described rotary spacing plate 8 is positioned at the end of earthed switch shifting shaft 7, can follow earthed switch shifting shaft 7 and rotate.Position interlock plate 13 is provided with first limit shaft 26 of symmetrical distribution corresponding to the end that location notch 28 is set; Rotary spacing plate 8 is positioned at 26 of first limit shafts corresponding to the other end that links to each other with earthed switch shifting shaft 7, and with the 26 corresponding cooperations of first limit shaft.Follow that earthed switch swinging plate 7 rotates and rotational angle when big when rotary spacing plate 8, rotary spacing plate 8 contacts with first limit shaft 26 corresponding to the end that is positioned at first limit shaft 26, and first limit shaft 26 can stop the rotation of earthed switch shifting shaft 7.End corresponding to positioned adjacent groove 28 on first location-plate 10 and second location-plate 12 is equipped with the first spring installation shaft 25, and the described first spring installation shaft 25 is provided with first regulating spring 11; First regulating spring 11 and the first spring installation shaft 25 all are positioned at the side of first location-plate 10 corresponding to contiguous panel 3.
Side corresponding to contiguous breaker operator hole 32 on the panel 3 is provided with adjustable plate 40; The top in breaker operator hole 32 is provided with the 3rd location-plate 14; 6 of earthed switch handle hole 36 and alignment pins also are provided with the 4th location-plate 37, and described the 3rd location-plate 14 and the 4th location-plate 37 all fix with panel 3.The 3rd location-plate 14 and 37 of the 4th location-plates are provided with back-moving spring 17, and an end and the panel 3 of adjustable plate 40 fix, and the other end contacts with the 3rd location-plate 14.Breaker operator axle 21 convexes with guide vane end stop corresponding to the end of contiguous closure plate 16; When breaker operator axle 21 rotated, the guide vane end stop on the breaker operator axle 21 will contact with adjustable plate 40, and adjustable plate 40 can reset to the rotation of breaker operator axle 21 by the effect of the 3rd location-plate 14 and back-moving spring 17.
Also be provided with ratchet 20 on the breaker operator axle 21, described ratchet 20 is positioned at panel 3 corresponding to the side that three hole control boards 2 are set, and is positioned at the below of three hole control boards 2.One side of described ratchet 20 is provided with ratchet 18, and described ratchet 18 is hinged by pawl installation axle and display panel 15; Ratchet 18 is meshed with ratchet 20, by cooperatively interacting of ratchet 18 and ratchet 20, in the time of can avoiding breaker operator axle 21 backward rotation, breaks the vacuum tube in the circuit breaker.Described ratchet 18 is provided with second regulating spring 22, and described second regulating spring 22 is installed on the panel 3 by the second spring installation shaft 29 corresponding to the other end that links to each other with ratchet 18; Second regulating spring 22 can be regulated the rotation of ratchet 18.Panel 3 is provided with second limit shaft 30 corresponding to the end edge of closure plate 16; The end edge of closure plate 16 is provided with step, and closure plate 16 and the 30 corresponding cooperations of second limit shaft can effectively be regulated the rotation of closure plate 16.
As shown in Figure 1: during work, joystick 1 is positioned at 35 of breaker operator selecting hole 33 and earthed switch operation holes, and the location hole 31 of controlling on the closure plate 16 is positioned at 36 of breaker operator hole 32 and earthed switch handle holes; Thereby the end face of closure plate 16 is with breaker operator hole 32 and 36 shutoff of earthed switch handle hole, breaker operator handle or earthed switch operating grip can not be inserted in breaker operator axle 21 or the earthed switch operating axis 19, can not operate accordingly breaker operator axle 21 or earthed switch operating axis 19.When joystick 1 turns to breaker operator selecting hole 33, operation location hole 31 on the closure plate 16 turns to and 32 corresponding positions, breaker operator hole, operation location hole 31, breaker operator hole 32 and breaker operator selecting hole 33 are connected, thereby the breaker operator handle can be embedded in the breaker operator axle 21, and then to 21 operations of breaker operator axle.When the operation hole on the closure plate 16 31 was connected with breaker operator hole 32, earthed switch handle hole 36 can not be carried out any operation to ground connection switching manipulation axle 19 by the end face shutoff of closure plate 16, prevents misoperation.Ratchet 20 on the breaker operator axle 21 and ratchet 18 corresponding cooperations guarantee that breaker operator axle 21 can only rotate toward a direction, when avoiding backward rotation, breaks the vacuum tube in the circuit breaker.When breaker operator axle 21 rotates under the effect of breaker operator handle, guide vane end stop on the breaker operator axle 21 can contact with adjustable plate 40, under adjustable plate 40 the effect, the rotation of breaker operator axle 21 is resetted by the 3rd location-plate 14 and back-moving spring 17.
When joystick 1 turns to earthed switch operation hole 35, operation location hole 31 on the closure plate 16 is followed and is rotated to earthed switch handle hole 36 corresponding positions, operation location hole 31 is connected with earthed switch handle hole 36, earthed switch operation hole 35, and the earthed switch operating grip can be connected with earthed switch operating axis 19 by operation location hole 31; And breaker operator hole 32 can not be operated breaker operator axle 21 by the plug at end part of closure plate 16.The earthed switch operating grip is with after earthed switch operating axis 19 links to each other, position interlock plate 13 is by location notch 28 and first location-plate 10, the 12 corresponding cooperations of second location-plate, the rotation of 12 pairs of position interlocks of first location-plate 10 and second location-plate plate 13 has opposite effect power, and position interlock plate 13 and earthed switch operating axis 19 can not rotate.
When stirring earthed switch swinging plate 5, earthed switch swinging plate 5 moves in earthed switch position display hole 4.The upper end in earthed switch position display hole 4 is that the closing position shows, middle for sub-gate position shows, the lower end shows for the ground connection position.When earthed switch swinging plate 5 was moved upwards up to the closing position, earthed switch swinging plate 5 drove installation shaft 38 relative positioning pins 6 and rotates, and installation shaft 38 drives earthed switch shifting shaft 7 and rotates accordingly.When earthed switch shifting shaft 7 rotated, earthed switch shifting shaft 7 made cam 9 rotate relative to first location-plate 10; When cam 9 turned to peak, cam 9 was separated the end of first location-plate 10 and position interlock plate 13, and this moment, the active force of 12 of the position interlock plate 13 and first location-plate 10 and second location-plates just was in non-equilibrium state; Drive earthed switch operating axis 19 by the earthed switch operating grip and rotate, can carry out closing operation earthed switch.
When earthed switch swinging plate 5 turned to sub-gate position in earthed switch position display hole 4, earthed switch swinging plate 5 can make installation shaft 38 rotate; The rotation of installation shaft 38 and earthed switch shifting shaft 7, make cam 9 turn to 12 of first location-plate 10 and second location-plates, first location-plate 10 is by moving to the direction of position interlock plate 13 under the effect of first regulating spring 11, and the end of first location-plate 10 can be embedded in the location notch 28 again.After first location-plate 10 is embedded in location notch 28, the active force that position interlock plate 13 and first location-plate 10, second location-plate are 12 is in poised state again, and the earthed switch operating grip can not rotate ground connection switching manipulation axle 19 and the position plate 13 that links.
When earthed switch swinging plate 5 turned to the earthed switch earthing position in earthed switch position display hole 4, earthed switch swinging plate 5 can make installation shaft 38 rotate; The rotation of installation shaft 38 and earthed switch shifting shaft 7 can make the summit of cam 9 contact with second location-plate 12, and can promote second location-plate 12 and the position plate 13 that links and be separated.After second location-plate 12 and position interlock plate 13 are separated, the active force that the position interlock plate 13 and second location-plate 12, first location-plate are 10 is in non-equilibrium state, the earthed switch operating grip can rotate ground connection switching manipulation axle 19 and position interlock plate 13, makes earthed switch carry out ground connection.
When earthed switch swinging plate 5 turned to the separating brake position once more, installation shaft 38 and earthed switch shifting shaft 7 can make cam 9 rotate accordingly.When cam 9 rotated, second location-plate 12 carried out the direction motion to position interlock plate 13 under the effect of first regulating spring 11, and the end of second location-plate 12 is embedded in the location notch 28; The active force that the position interlock plate 13 and first location-plate 10, second location-plate are 12 is in poised state, avoids the misoperation to earthed switch.The rotary spacing plate 8 and first limit shaft 26 cooperatively interact, and avoid cam 9 to rotate bigger angle, influence the action of earthed switch operating axis 19.Therefore, when having only earthed switch swinging plate 5 in earthed switch position display hole 4, to be indicated to corresponding position, could operate accordingly ground connection switching manipulation axle 19 by the earthed switch operating grip, safe and reliable.When earthed switch swinging plate 5 is in combined floodgate or earthing position, because the effect of position interlock plate 13, the earthed switch operating grip can not separate with link plate 13 and earthed switch operating axis 19 of position, have only when earthed switch swinging plate 5 is in the separating brake position, the earthed switch operating grip could withdraw from earthed switch operating axis 19.Have the state Show Color on the display panel 15, when joystick 1 turned to the relevant position, display panel 15 will show the color of relevant position.
The present invention is setting operation location hole 31 on closure plate 16, joystick 1 drives closure plate 16 rotations, select earthed switch handle hole 36 and breaker operator hole 32 by controlling location hole 31, thereby can operate accordingly ground connection switching manipulation axle 19 and breaker operator axle 21; Avoided misoperation to ground connection switching manipulation axle 19 or breaker operator axle 21.Earthed switch swinging plate 5 moves in earthed switch position display hole 4, and can indicate the state of earthed switch; When earthed switch swinging plate 5 moves, can adjust being connected of first location-plate 10, second location-plate 12 and position interlock plate 13, make the earthed switch operating axis 19 can only be along the direction operation of setting, performance accuracy height.Breaker operator axle 21 is provided with ratchet 20, and ratchet 20 is meshed with ratchet 18, and second regulating spring 22 is set on the ratchet 18, can guarantee that breaker operator axle 21 can only rotate along a direction, avoids breaking the vacuum tube in the circuit breaker; Compact conformation, installation and easy to use, safe and reliable.

Claims (10)

1. a mechanical interlock mechanism for ring main unit comprises panel (3), and an end of described panel (3) is provided with earthed switch handle hole (36) and breaker operator hole (32); It is characterized in that: the end that the last correspondence of described panel (3) is provided with earthed switch handle hole (36) and breaker operator hole (32) is provided with three hole control boards (2), and described three hole control boards (2) are provided with breaker operator selecting hole (33), joystick installing hole (34) and earthed switch operation hole (35); Three hole control boards (2) fix with panel (3), and earthed switch operation hole (35) on the three hole control boards (2) and breaker operator selecting hole (33) are connected with earthed switch handle hole (36) and breaker operator hole (32) respectively, are provided with joystick (1) in the joystick installing hole (34); Panel (3) is provided with closure plate (16) corresponding to the opposite side that three hole control boards (2) are set, described closure plate (16) is provided with the connecting axle of operation location hole (31) and vertical distribution, described connecting axle penetrates in the joystick installing hole (34) corresponding to the other end that links to each other with closure plate (16), and fix with joystick (1), joystick (1) and closure plate (16) all can rotate relative to panel (3); Described operation location hole (31) is corresponding with earthed switch handle hole (36) and breaker operator hole (32) respectively; Be respectively equipped with earthed switch operating axis (19) and breaker operator axle (21) in earthed switch operation hole (35) and the breaker operator selecting hole (33); One end of described earthed switch operating axis (19) stretches in earthed switch operation hole (35) and the earthed switch handle hole (36), and can rotate relative to three hole control boards (2); One end of breaker operator axle (35) stretches in breaker operator hole (32) and the breaker operator selecting hole (33), and can rotate relative to three hole control boards (2).
2. mechanical interlock mechanism for ring main unit according to claim 1, it is characterized in that: described panel (3) is gone up and is provided with earthed switch position display hole (4) corresponding to the side that earthed switch handle hole (36) is set, and a side in described earthed switch position display hole (4) is provided with alignment pin (6); Be provided with earthed switch position swinging plate (5) in the earthed switch position display hole (4), earthed switch position swinging plate (5) is provided with installation shaft (38) corresponding to the other end that stretches into earthed switch position display hole (4), and earthed switch position swinging plate (5) is hinged by installation shaft (38) and alignment pin (6); Earthed switch position swinging plate (5) can move in earthed switch position display hole (4); Installation shaft (38) is provided with fixedly connected earthed switch shifting shaft (7) corresponding to the other end that links to each other with alignment pin (6), described earthed switch shifting shaft (7) is provided with cam (9) corresponding to the other end that links to each other with installation shaft (38), the both sides of described cam (9) are provided with first location-plate (10) and second location-plate (12) of symmetrical distribution, and cam (9) can rotate relative to first location-plate (10) and second location-plate (12); One end of second location-plate (12) and first location-plate (10) is provided with the connecting plate (23) that is hinged, and the other end is provided with position interlock plate (13); Described position interlock plate (13) is provided with location notch (28) corresponding to the end that links to each other with first location-plate (10) and second location-plate (12), and the end of first location-plate (10) and second location-plate (12) is embedded in the location notch (28); Position interlock plate (13) fixes with the end of earthed switch operating axis (19) corresponding to contiguous closure plate (16).
3. mechanical interlock mechanism for ring main unit according to claim 2 is characterized in that: described position interlock plate (13) is gone up first limit shaft (26) that is provided with symmetrical distribution corresponding to the end that links to each other with first location-plate (10) and second location-plate (12); Earthed switch shifting shaft (7) is provided with rotary spacing plate (8) corresponding to the end of contiguous first limit shaft (26), described rotary spacing plate (8) is positioned between first limit shaft (26) corresponding to the other end that links to each other with earthed switch shifting shaft (7), and with the corresponding cooperation of first limit shaft (26).
4. according to claim 2 or 3 described mechanical interlock mechanism for ring main unit, it is characterized in that: be equipped with the first spring installation shaft (25) on described first location-plate (10) and second location-plate (12), described spring installation shaft (25) is provided with first regulating spring (11).
5. mechanical interlock mechanism for ring main unit according to claim 1 is characterized in that: described closure plate (16) is provided with display panel (15) corresponding to a side of contiguous panel (3), and described display panel (15) fixes with closure plate (16).
6. mechanical interlock mechanism for ring main unit according to claim 5 is characterized in that: described display panel (15) is provided with the ratchet (18) that is hinged, and described ratchet (18) is meshed with ratchet (21) on the breaker operator axle (21); Described ratchet (21) all is positioned at panel (3) corresponding to the side that three hole control boards (2) are set with ratchet (18).
7. mechanical interlock mechanism for ring main unit according to claim 6, it is characterized in that: described ratchet (18) is provided with second regulating spring (22), one end of described second regulating spring (22) is installed on the ratchet (18), and the other end is fixed on the panel (3) by the second spring installation shaft (29).
8. mechanical interlock mechanism for ring main unit according to claim 1 is characterized in that: described panel (3) is provided with adjustable plate (40) corresponding to the side that breaker operator hole (32) is set; Panel (3) is provided with the 3rd location-plate (14) corresponding to the top of breaker operator hole (32), panel (3) is provided with the 4th location-plate (37) corresponding to a side of contiguous earthed switch handle hole (36), links to each other by back-moving spring (17) between described the 4th location-plate (37) and the 3rd location-plate (14); One end of adjustable plate (40) and panel (3) fix, and the other end links to each other with the 3rd location-plate (14).
9. mechanical interlock mechanism for ring main unit according to claim 1 is characterized in that: described panel (3) is provided with second limit shaft (30), and described second limit shaft (30) is positioned at the end edge of closure plate (16), and with the corresponding cooperation of closure plate (16).
10. mechanical interlock mechanism for ring main unit according to claim 2 is characterized in that: the two ends of described connecting plate (23) are hinged with first location-plate (10) and second location-plate (12) respectively by connecting plate jointed shaft (24).
CN201010258609.0A 2010-08-17 2010-08-17 Mechanical interlock mechanism for ring main unit Expired - Fee Related CN101916680B (en)

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Publication number Priority date Publication date Assignee Title
CN106057514A (en) * 2016-07-25 2016-10-26 中能建江苏能源科技有限公司 Manual three-station operation mechanism
CN106340821A (en) * 2016-10-20 2017-01-18 莱福士电力电子设备(深圳)有限公司 Switchgear interlocking mechanism and switchgear
CN110211826A (en) * 2019-04-26 2019-09-06 新机电器有限公司 Interlocking mechanism in on-load switch
CN113936938A (en) * 2021-09-18 2022-01-14 湖北省电力装备有限公司 Isolator and circuit breaker linkage operating device for looped netowrk cabinet

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CN2763954Y (en) * 2004-10-27 2006-03-08 厦门协成实业有限公司 Interlocking device for switch cabinet
CN101710543A (en) * 2009-12-08 2010-05-19 北京双杰电气股份有限公司 Double-hole operating device of C-type switch
CN201765982U (en) * 2010-08-17 2011-03-16 博耳(无锡)电力成套有限公司 Mechanical interlocking mechanism for ring main unit

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Publication number Priority date Publication date Assignee Title
CN2648579Y (en) * 2003-09-10 2004-10-13 唐嘉隆 Mechanical interlocking operating mechanism for high-voltage switch cabinet
CN2763954Y (en) * 2004-10-27 2006-03-08 厦门协成实业有限公司 Interlocking device for switch cabinet
CN101710543A (en) * 2009-12-08 2010-05-19 北京双杰电气股份有限公司 Double-hole operating device of C-type switch
CN201765982U (en) * 2010-08-17 2011-03-16 博耳(无锡)电力成套有限公司 Mechanical interlocking mechanism for ring main unit

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106057514A (en) * 2016-07-25 2016-10-26 中能建江苏能源科技有限公司 Manual three-station operation mechanism
CN106057514B (en) * 2016-07-25 2018-05-15 中能建江苏能源科技有限公司 A kind of manual three station operating mechanism
CN106340821A (en) * 2016-10-20 2017-01-18 莱福士电力电子设备(深圳)有限公司 Switchgear interlocking mechanism and switchgear
CN106340821B (en) * 2016-10-20 2018-02-27 莱福士电力电子设备(深圳)有限公司 Interlocking mechanism of switch cabinet and switch cubicle
CN110211826A (en) * 2019-04-26 2019-09-06 新机电器有限公司 Interlocking mechanism in on-load switch
CN110211826B (en) * 2019-04-26 2024-05-24 新机电器有限公司 Interlocking mechanism in load switch
CN113936938A (en) * 2021-09-18 2022-01-14 湖北省电力装备有限公司 Isolator and circuit breaker linkage operating device for looped netowrk cabinet
CN113936938B (en) * 2021-09-18 2023-09-19 湖北省电力装备有限公司 Isolating switch and circuit breaker linkage operation mechanism for ring main unit

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