CN102290727A - Device for interlocking cable chamber cabinet doors and switch operating mechanisms of medium-voltage and high-voltage switchgears - Google Patents
Device for interlocking cable chamber cabinet doors and switch operating mechanisms of medium-voltage and high-voltage switchgears Download PDFInfo
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- CN102290727A CN102290727A CN2011102364013A CN201110236401A CN102290727A CN 102290727 A CN102290727 A CN 102290727A CN 2011102364013 A CN2011102364013 A CN 2011102364013A CN 201110236401 A CN201110236401 A CN 201110236401A CN 102290727 A CN102290727 A CN 102290727A
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Abstract
The invention relates to a device for interlocking cable chamber cabinet doors and switch operating mechanisms of medium-voltage and high-voltage switchgears. A guiding shaft and a moving shaft are arranged on an inner side plate and an outer side plate of a support of a locking mechanism respectively; a moveable baffle plate comprises an angular pushing plate and a vertical plate; the vertical plate on the moveable baffle plate is sleeved on the guiding shaft and is fixedly connected with the moving shaft; two ends of a spring sleeved on the moving shaft press against the inner side plate of the support and the vertical plate of the moveable baffle plate respectively; the end part of the pushing plate on the moveable baffle plate extends out of the outer side plate of the support and is opposite to the end surface of a door lock plate; the upper part of an upper connecting rod of a connecting rod mechanism is connected with a ground switch operating main shaft; the lower part of the upper connecting rod of the connecting rod mechanism is hinged with a lower connecting rod through a guiding pin shaft; the guiding pin shaft is arranged in a guiding slot on the outer side plate of the support; one end of the guiding pin shaft is hinged with the lower connecting rod on the outer side plate of the support; the other end of the guiding pin shaft is opposite to a lock opening of the door lock plate; and the moving shaft is positioned at the bottom of the guiding slot. The device has the characteristics of simple and reasonable structure, small volume and high safety.
Description
Technical field
The present invention relates to the interlock of a kind of mesohigh switchgear cable vault's cabinet door and earthed switch operating mechanism, belong to withdraw-type switching device technical field.
Background technology
Constituting by control room, breaker chamber, bus-bar room and cable vault usually of mesohigh switchgear, the chamber internal fixation of breaker chamber has one group of stationary contact headstock as static contact head device, connecting with extraneous high-voltage power circuit into and out of the line fixed contact on the stationary contact headstock.When circuit breaker chassis car entered in the breaker chamber, the upper and lower contact of circuit breaker cart engaged respectively with into and out of the line fixed contact, behind the breaker closing, realized the connection on the circuit.At circuit breaker manual operation handcart advancing mechanism circuit breaker cart is closed a floodgate after test position is pushed into the service position, or behind the separating brake circuit breaker cart is retracted into test position from the service position.When switch cubicle needed checking experiment, the maintainer need enter work in the cabinet, is support personnel's safety, will open the cabinet door again and carry out in the cable vault carrying out the earthed switch closing operation earlier, the maintainer was entered enter in the cable vault to overhaul to carry out work; When switch cubicle need send electricity, earlier with behind cable vault's door lock, operational grounding switching manipulation main shaft made the earthed switch separating brake again.For reaching the effect that prevents misoperation earthed switch and entering into charged intervals, a kind ofly cable vault's door is operated, but adopted key operated operation inconvenience and the not high problem of fail safe of existing of procedure lock by the procedure lock key.Another kind is that the mechanical mechanism by special use makes cable vault's door and earthed switch carry out locking, and this blocked mechanical system comprises switch cabinet body, cable vault's door and earthed switch operation axis, and horizontal struts and vertical depression bar are arranged in the cabinet.Horizontal struts is provided with it is applied the horizontal reset spring of horizontal thrust forward, horizontal struts can be moved horizontally, and vertical depression bar is provided with and applies upwards to it that vertical back-moving spring of thrust can move up and down vertical depression bar, one end of horizontal struts is connected with skewback, one end of vertical depression bar is connected with briquetting, skewback and briquetting contact with each other and form oblique mechanism, the upper end of vertical depression bar be positioned at the earthed switch operation axis under, withstand the earthed switch operation axis by moving on the vertical depression bar, to its pinning, cable vault's door lock sheet also is installed in cabinet, the position of cable vault's door lock sheet is corresponding with the position in door lock hole, cable vault, cable vault's door lock sheet is provided with control rotating shaft, control rotating shaft is not held and is provided with first bent axle, and the earthed switch shaft end is provided with second bent axle, and the connecting rod two ends are hinged with first bent axle and second bent axle respectively.Door is closed when the cable vault, horizontal struts moves down vertical depression bar, vertical depression bar top breaks away from the earthed switch operation axis, just allow the earthed switch operation axis to rotate, promptly allow earthed switch to carry out sub-switching operation, when the earthed switch sub-switching operation, the earthed switch operation axis drives cable vault's door lock sheet and rotates, and cable vault's door lock sheet is tight with cable vault's door lock automatically; And in the earthed switch making process, the earthed switch operation axis drives cable vault's locking plate backward rotation, and cable vault's door is with regard to automatic unlocking; And open when cable vault's door one, the earthed switch operation axis is just withstood automatically in vertical depression bar top, and the earthed switch operation axis can not rotate, to prevent the misoperation earthed switch.But the blocking mechanism of said structure, has following defective: the link gear that 1, not only needs horizontal struts and vertical depression bar and oblique mechanism, but also need be by connecting rod and two toggles that bent axle constitutes, by link gear and toggle respectively to ground connection switch spindle and cabinet door with lock or release, the parts of installing are more, complex structure, and the installing space that takies is bigger.2, because the position of cable vault's door lock sheet is corresponding with the position in door lock hole, cable vault, enter door lock hole, cable vault by cable vault's door lock sheet, and pinning cable vault door, therefore lockhole is arranged on cable vault's door, therefore can't prevent that outside employing instrument from moving the possibility of cable vault's door lock sheet, the fail safe of reduction.
Summary of the invention
The purpose of this invention is to provide a kind of simple for structurely, volume is little, the safe mesohigh switchgear cable vault cabinet door and the interlock of earthed switch operating mechanism.
The present invention is that the technical scheme that achieves the above object is: the interlock of a kind of mesohigh switchgear cable vault's cabinet door and earthed switch operating mechanism, it is characterized in that: comprise locking mechanism, it is inboard and to the door lock plate of indoor extension that linkage and setting are installed in the cable vault cabinet, described locking mechanism comprises and is installed in the support that is flute profile on the cabinet, the axis of guide, shifting axle and sideboard and spring, be separately installed with the axis of guide and shifting axle on the inside and outside biside plate of support, sideboard comprises push pedal and the riser that is dihedral, riser on the sideboard is sleeved on the axis of guide and with shifting axle fixedlys connected, be sleeved on its two ends of spring on the shifting axle respectively on the riser of the interior plate of ceiling hold and sideboard, the outer panel of support and relative with door lock plate end face is stretched out in the push pedal end on the sideboard; Described linkage comprises connecting rod and lower link, last connecting rod top is connected with the earthed switch operation axis, the bottom is hinged by guiding bearing pin and lower link, and the guiding bearing pin is arranged in the gathering sill on the support outer panel, its other end of lower link that one end is hinged on the support outer panel is relative with fore shaft on the door lock plate, and shifting axle is positioned at the gathering sill bottom.
The present invention adopts locking mechanism, linkage and setting are installed in cable vault cabinet interlock inboard and that constitute to the door lock plate of indoor extension, and locking mechanism by support with the axis of guide, shifting axle and sideboard are connected with spring and cabinet are interior, because shifting axle is fixedlyed connected with sideboard, therefore can control moving axially of sideboard by the door lock plate, shifting axle is moved axially and lower link is locked or release, rational in infrastructure, the present invention makes connecting rod drive lower link by the earthed switch operation axis and rotates along its hinged center, thereby make lower link pin door lock plate or disengaging door lock plate, operation is installed reliable, especially lower link can only be along rotating in the gathering sill on the support outer panel, therefore shifting axle can accurately be locked to lower link or to the lower link release, the interlock reliable operation.The present invention connects sideboard, shifting axle and linkage by the support that is installed in the cabinet, so the parts that are installed in the cabinet are few, and compact conformation, reasonable, the space that takies in the cabinet is little.Door lock plate of the present invention is arranged on the inboard of cable vault's door, pins the door lock plate by lower link, can prevent effectively that outside employing instrument from moving the possibility of door lock plate, makes interlock have fail safe preferably.
Description of drawings
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
Fig. 1 is the structural representation of the interlock of mesohigh switchgear of the present invention cable vault's cabinet door and earthed switch operating mechanism.
Fig. 2 is the I place structure for amplifying schematic diagram of Fig. 1.
Fig. 3 is the perspective view of the interlock of mesohigh switchgear of the present invention cable vault's cabinet door and earthed switch operating mechanism.
Fig. 4 is the II place structure for amplifying schematic diagram of Fig. 3.
Wherein: 1-breaker chamber, 2-cable vault, 3-earthed switch operation axis, the 4-axle sleeve, the last connecting rod of 5-, 6-support, the 6-1-gathering sill, 7-lower link, 8-door lock plate, the 9-axis of guide, 10-sideboard, 10-1-push pedal, the 10-2-riser, 11-spring, 12-shifting axle, 13-cable vault bar door, 14-bearing pin, the 15-bearing pin that leads.
Embodiment
See shown in Fig. 1～4, the interlock of mesohigh switchgear of the present invention cable vault's cabinet door and earthed switch operating mechanism, comprise locking mechanism, it is inboard and to the door lock plate 8 of indoor extension that linkage and setting are installed in cable vault's cabinet door 13, this earthed switch operation axis 3 is installed in the cable vault 2, can close a floodgate or separating brake by rotating earthed switch operation axis 3 control earthed switches, 2 tops are breaker chamber 1 in the cable vault, the chamber internal fixation of breaker chamber 1 has one group of stationary contact headstock as static contact head device, advancing on the stationary contact headstock, the outlet fixed contact connects with extraneous high-voltage power circuit.See shown in Fig. 1～4, locking mechanism of the present invention comprises and is installed in the support 6 that is flute profile on the cabinet, the axis of guide 9, shifting axle 12 and sideboard 10 and spring 11, support 6 is installed on the side plate of cable vault 2 by securing member, be separately installed with the axis of guide 9 and shifting axle 12 on the inside and outside biside plate of support 6, sideboard 10 comprises push pedal 10-1 and the riser 10-2 that is dihedral, riser 10-2 on the sideboard 10 is sleeved on the axis of guide 9 and with shifting axle 12 fixedlys connected, and be sleeved on its two ends of spring 11 on the shifting axle 12 respectively on the riser 10-2 of the interior plate of ceiling holds 6 and sideboard 10, the riser 10-2 that promotes on the sideboard 10 by spring 11 moves axially, or the riser 10-2 on the sideboard 10 accepts the pressure on the door lock plate 8 and compresses spring 11, sideboard 10 is moved axially along the axis of guide 9, and play guide effect by the axis of guide 9, the present invention moves axially for sideboard 10 can be stablized more, also has little riser on the push pedal 10-1 of sideboard 10, this little riser is positioned at the opposite side of push pedal 10-1, little riser also is enclosed within on the axis of guide 9, two risers on the sideboard 10 are not contour bathtub construction, and has mechanical strength preferably, the outer panel of support 6 and relative with lower link 7 with door lock plate 8 end faces is stretched out in push pedal 10-1 end on the sideboard 10, by the push pedal 10-1 dog back jam plate 8 on the sideboard 10, by moving axially of door lock plate 8 control sideboards 10 and shifting axle 12.
See shown in Fig. 1～4, linkage of the present invention comprises connecting rod 5 and lower link 7, last connecting rod 5 tops are connected with earthed switch operation axis 3, be installed on the earthed switch operation axis 3 for conveniently going up connecting rod 5, the top of last connecting rod 5 is fixed with axle sleeve 4, inner hexagonal hole on the axle sleeve 4 is installed on the earthed switch operation axis 3, the bottom of last connecting rod 5 is hinged with lower link 7 by guiding bearing pin 15, guiding bearing pin 15 is arranged in the gathering sill 6-1 of support 6 outer panels, and an end of lower link 7 is hinged on support 6 outer panels by bearing pin 14, lower link 7 its other ends are relative with fore shaft on the door lock plate 8, this fore shaft is arranged on the below of door lock plate 8, when earthed switch operation axis 3 rotates, driving lower link 7 by last connecting rod 5 only can move in this gathering sill 6-1, the fore shaft that lower link 7 is broken away from the door lock plate 8, or lower link 7 turns in the fore shaft of door lock plate 8, see shown in Fig. 1～4, shifting axle 12 of the present invention is positioned at gathering sill 6-1 bottom, preferably shifting axle 12 is positioned at the front side of gathering sill 6-1 bottom, by moving axially of shifting axle 12, position to lower link 7 is carried out spacing, when active pin shaft is positioned at gathering sill 6-1 bottom, drive the fore shaft that lower link 7 breaks away from door lock plate 8, and open cable vault's cabinet door 13, make sideboard 10 lose the pressure of door lock plate 8, drive shifting axles 12 by spring 11 and keep off bottom at lower link 7, lower link 7 can not upwards be rotated, after cable vault's cabinet door 13 is opened, can not operational grounding switching manipulation main shaft 3.
See shown in Fig. 1～4, when cable vault's gate 13 in off position, earthed switch is in the separating brake position, push pedal 10-1 compression spring 11 also drove shifting axle 12 and moved inward on door lock plate 8 is pressed in push pedal 10-1 on the movable jam plate this moment, and lower link 7 is arranged in the fore shaft of door lock plate 8, then cable vault's cabinet door 13 can not be opened, earthed switch owing to the internally charged state of cabinet, can be protected operating personnel's personal safety when the separating brake position; When the needs interruption maintenance, operational grounding switching manipulation main shaft 3, make earthed switch be in closing position, this moment is when rotating when earthed switch operation axis 3, making connecting rod 5 drive lower link 7 rotates, when guiding bearing pin 15 moves to gathering sill 6-1 bottom, lower link 7 breaks away from the fore shaft of door lock plate 8, and open cable vault's cabinet door 13, because the push pedal 10-1 on the sideboard 10 loses the pressure of door lock plate 8, under the effect of spring 11, sideboard 10 and shifting axle 12 move axially laterally, because shifting axle 12 is positioned at gathering sill 6-1 bottom, therefore can stretch out and keep off by shifting axle 12, lower link 7 can not upwards be rotated, thereby stoped the sub-switching operation of earthed switch operation axis 3 at lower link 7 places, effectively avoid the earthed switch separating brake, and realize the interlocking of cable vault's cabinet door and earthed switch operating mechanism.
Claims (3)
1. the interlock of mesohigh switchgear cable vault cabinet door and earthed switch operating mechanism, it is characterized in that: comprise locking mechanism, it is inboard and to the door lock plate (8) of indoor extension that linkage and setting are installed in cable vault's cabinet door (13), described locking mechanism comprises and is installed in the support (6) that is flute profile on the cabinet, the axis of guide (9), shifting axle (12) and sideboard (10) and spring (11), be separately installed with the axis of guide (9) and shifting axle (12) on the inside and outside biside plate of support (6), sideboard (10) comprises push pedal (10-1) and the riser (10-2) that is dihedral, riser (10-2) on the sideboard (10) is sleeved on the axis of guide (9) and upward and with shifting axle (12) fixedlys connected, be sleeved on its two ends of spring (11) on the shifting axle (12) respectively on the riser (10-2) of the interior plate of ceiling holds (6) and sideboard (10), the outer panel of support (6) and relative with door lock plate (8) end face is stretched out in push pedal (101) end on the sideboard (10); Described linkage comprises connecting rod (5) and lower link (7), last connecting rod (5) top is connected with earthed switch operation axis (3), the bottom is hinged by guiding bearing pin (15) and lower link (7), and guiding bearing pin (15) is arranged in the gathering sill (6-1) on support (6) outer panel, its other end of lower link (7) that one end is hinged on support (6) outer panel is relative with fore shaft on the door lock plate (8), and shifting axle (12) is positioned at gathering sill (6-1) bottom.
2. the interlock of mesohigh switchgear according to claim 1 cable vault's cabinet door and earthed switch operating mechanism, it is characterized in that: also have little riser in the push pedal (10-1) of described sideboard (10), and little riser is enclosed within also on the axis of guide (9).
3. the interlock of mesohigh switchgear according to claim 1 cable vault's cabinet door and earthed switch operating mechanism, it is characterized in that: described top of going up connecting rod (5) is fixed with axle sleeve (4), and the inner hexagonal hole of axle sleeve (4) is installed on the earthed switch operation axis (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110236401.3A CN102290727B (en) | 2011-08-18 | 2011-08-18 | Device for interlocking cable chamber cabinet doors and switch operating mechanisms of medium-voltage and high-voltage switchgears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110236401.3A CN102290727B (en) | 2011-08-18 | 2011-08-18 | Device for interlocking cable chamber cabinet doors and switch operating mechanisms of medium-voltage and high-voltage switchgears |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102290727A true CN102290727A (en) | 2011-12-21 |
| CN102290727B CN102290727B (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110236401.3A Active CN102290727B (en) | 2011-08-18 | 2011-08-18 | Device for interlocking cable chamber cabinet doors and switch operating mechanisms of medium-voltage and high-voltage switchgears |
Country Status (1)
| Country | Link |
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| CN (1) | CN102290727B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013097175A1 (en) * | 2011-12-30 | 2013-07-04 | Abb Technology Ltd. | Mechanical interlock device among cable door, rear door and earthing switch |
| EP2863498A1 (en) * | 2013-10-16 | 2015-04-22 | LSIS Co., Ltd. | Door interlock device for transformer room of vacuum circuit breaker |
| CN105185622A (en) * | 2015-09-28 | 2015-12-23 | 国家电网公司 | Mechanical closing locking device for high-voltage circuit breaker |
| CN108616211A (en) * | 2018-05-30 | 2018-10-02 | 西安中车永电电气有限公司 | A kind of cabinet door carrying interlock function for converter cabinet |
| CN111415831A (en) * | 2020-03-14 | 2020-07-14 | 广东正超电气有限公司 | Mechanical locking control mechanism for grounding switch and cable chamber door of switch cabinet |
| CN108376622B (en) * | 2018-04-28 | 2023-09-15 | 无锡市新一代电力电器有限公司 | Side-mounted switch cabinet grounding switch interlocking device |
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| CN101533992A (en) * | 2009-02-24 | 2009-09-16 | 上海大华电器设备有限公司 | Interlocking device of metal-enclosed switchgear grounding switch and cable room door |
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| CN201682182U (en) * | 2010-03-26 | 2010-12-22 | 上海大华电器设备有限公司 | Mechanical interlocking device for earthing switch and back door of high-voltage switch cabinet |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US7071428B1 (en) * | 2004-12-14 | 2006-07-04 | Unisys Corporation | Self-adjusting interlock actuator for a hinged cover |
| CN201196926Y (en) * | 2008-03-28 | 2009-02-18 | 江苏金华厦电气有限公司 | Interlocking apparatus of power distribution cabinet ground switch and breaker chamber cabinet door |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013097175A1 (en) * | 2011-12-30 | 2013-07-04 | Abb Technology Ltd. | Mechanical interlock device among cable door, rear door and earthing switch |
| CN104025230A (en) * | 2011-12-30 | 2014-09-03 | Abb技术有限公司 | Mechanical Interlock Device Among Cable Door, Rear Door And Earthing Switch |
| CN104025230B (en) * | 2011-12-30 | 2017-02-15 | Abb技术有限公司 | Mechanical Interlock Device Among Cable Door, Rear Door And Earthing Switch |
| EP2863498A1 (en) * | 2013-10-16 | 2015-04-22 | LSIS Co., Ltd. | Door interlock device for transformer room of vacuum circuit breaker |
| US9732543B2 (en) | 2013-10-16 | 2017-08-15 | Lsis Co., Ltd. | Door interlock device for transformer room of vacuum circuit breaker |
| CN105185622A (en) * | 2015-09-28 | 2015-12-23 | 国家电网公司 | Mechanical closing locking device for high-voltage circuit breaker |
| CN108376622B (en) * | 2018-04-28 | 2023-09-15 | 无锡市新一代电力电器有限公司 | Side-mounted switch cabinet grounding switch interlocking device |
| CN108616211A (en) * | 2018-05-30 | 2018-10-02 | 西安中车永电电气有限公司 | A kind of cabinet door carrying interlock function for converter cabinet |
| CN111415831A (en) * | 2020-03-14 | 2020-07-14 | 广东正超电气有限公司 | Mechanical locking control mechanism for grounding switch and cable chamber door of switch cabinet |
| CN111415831B (en) * | 2020-03-14 | 2022-04-08 | 广东正超电气有限公司 | Mechanical locking control mechanism for grounding switch and cable chamber door of switch cabinet |
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|---|---|
| CN102290727B (en) | 2014-05-28 |
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